Mike-Solar
013a175707
Single mechanical restructure commit: - root Cargo.toml = oakapp bin + workspace; one cargo build produces oakapp, oak-cli, oak-worker, liboakengine.dylib - app/rust/src -> src/ (app at repo root, no rust/ nesting) - src/<mod>/rust -> crates/oak<mod>; src/oakcore-rs -> crates/oakcore; src/bindings/oakotio -> crates/oakotio; src/engine/rust -> crates/oakengine (keeps cdylib+staticlib+rlib) - public C headers include/<mod>/ -> crates/oakengine/include/<mod>/ - OFX SDK headers vendored into crates/oakplugin/ofx/ (HostSupport gone) - legacy deleted: old src/ C++ modules, engine/, core/, ffmpeg_bridge/, app/ (Qt), cli/worker C++, root CMakeLists, third_party/KDDockWidgets submodule, otio-install, all build-* output (~40GB) - oakstorage kept but excluded from the workspace (skeleton w/ todos); gpui excluded (own workspace) - verified: cargo build green, cargo test --workspace 1845/0 (with the documented OCIO_RS_* env override for the homebrew OCIO)
794 lines
938 KiB
HTML
794 lines
938 KiB
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var data = {"files":[{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","codec.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oakcodec C ABI imports. The task module reaches the codec side through\n//! `include/codec/task.h` (the task submitter), `include/codec/decoder.h`\n//! (conform/proxy work) and `include/codec/encoder.h` (export). Signatures\n//! mirror the headers verbatim.\n\nuse std::ffi::{c_char, c_int, c_uint, c_void};\n\nuse crate::bridge::render::OakCancelAtom;\nuse crate::handle::CHandle;\n\n/// `OakCodecTaskKind` enum values (`include/codec/task.h`).\npub const OAKCODEC_TASK_CONFORM: c_int = 0;\n/// `OakCodecTaskKind::OAKCODEC_TASK_PROXY`.\npub const OAKCODEC_TASK_PROXY: c_int = 1;\n/// `OAKCODEC_E_CANCELLED` (`include/codec/error.h`).\npub const OAKCODEC_E_CANCELLED: c_int = -50006;\n/// `OAKCODEC_E_INVALID` (`include/codec/error.h`).\npub const OAKCODEC_E_INVALID: c_int = -50001;\n/// `OAKCODEC_E_FAILED` (`include/codec/error.h`).\npub const OAKCODEC_E_FAILED: c_int = -50003;\n\n/// Mirror of `OakCodecTaskRequest` (`include/codec/task.h`).\n#[repr(C)]\npub struct OakCodecTaskRequest {\n\t/// `OakCodecTaskKind` as int.\n\tpub kind: c_int,\n\t/// Source media filename.\n\tpub input_filename: *const c_char,\n\t/// Final destination path.\n\tpub output_filename: *const c_char,\n\t/// Stream inside the source media.\n\tpub stream_index: c_int,\n\t/// conform: target sample rate.\n\tpub sample_rate: c_int,\n\t/// conform: target channel layout mask.\n\tpub channel_layout: u64,\n\t/// conform: target sample format (enum as int).\n\tpub sample_format: c_int,\n\t/// proxy: target width, 0 = unspecified/divider.\n\tpub proxy_width: c_int,\n\t/// proxy: target height, 0 = unspecified/divider.\n\tpub proxy_height: c_int,\n}\n\n/// `oakcodec_task_submit_fn` callback typedef.\npub type OakCodecTaskSubmitFn =\n\tunsafe extern \"C\" fn(req: *const OakCodecTaskRequest, userdata: *mut c_void) -\u003e c_int;\n\n/// Mirror of `OakCodecFrame`/`OakFrame` handle type (`include/codec/frame.h`).\npub type OakFrame = CHandle;\n\n/// Mirror of `OakEncoder` handle type (`include/codec/encoder.h`).\npub type OakEncoder = CHandle;\n\n/// Mirror of `OakDecoder` handle type (`include/codec/decoder.h`).\npub type OakDecoder = CHandle;\n\n/// Mirror of `OakCodecProxyParams` (`include/codec/proxy.h`).\n#[repr(C)]\npub struct OakCodecProxyParams {\n\t/// Target width.\n\tpub width: c_int,\n\t/// Target height.\n\tpub height: c_int,\n\t/// Resolution divider.\n\tpub divider: c_int,\n\t/// Proxy format version.\n\tpub version: c_int,\n\t/// CRF for the proxy encode.\n\tpub crf: c_int,\n\t/// Whether audio is included.\n\tpub include_audio: c_int,\n\t/// Output container extension.\n\tpub extension: [c_char; 32],\n\t/// ffmpeg preset name.\n\tpub preset: [c_char; 32],\n}\n\n/// Mirror of `oakcodec_encoding_params` (`include/codec/encoder.h`) — the\n/// export task fills this to open the encoder. Layout mirrors the header\n/// verbatim (a zeroed struct = all tracks disabled).\n#[repr(C)]\npub struct OakCodecEncodingParams {\n\t/// Output filename.\n\tpub filename: [c_char; 1024],\n\t/// Export format id (`olive::ExportFormat::Format`).\n\tpub format: c_int,\n\t/// Whether video is exported.\n\tpub video_enabled: c_int,\n\t/// Video codec id.\n\tpub video_codec: c_int,\n\t/// Output width.\n\tpub video_width: c_int,\n\t/// Output height.\n\tpub video_height: c_int,\n\t/// Frame duration rational numerator.\n\tpub video_time_base_num: c_int,\n\t/// Frame duration rational denominator.\n\tpub video_time_base_den: c_int,\n\t/// Delivery pixel format (`OakPixelFormat` as int).\n\tpub video_pixel_format: c_int,\n\t/// Interlacing (`OAKCODEC_INTERLACE_*`).\n\tpub video_interlacing: c_int,\n\t/// Pixel aspect ratio numerator.\n\tpub video_pixel_aspect_num: c_int,\n\t/// Pixel aspect ratio denominator.\n\tpub video_pixel_aspect_den: c_int,\n\t/// Video bit rate (bit/s, 0 = default).\n\tpub video_bit_rate: i64,\n\t/// Minimum video bit rate.\n\tpub video_min_bit_rate: i64,\n\t/// Maximum video bit rate.\n\tpub video_max_bit_rate: i64,\n\t/// Video buffer size (bytes).\n\tpub video_buffer_size: i64,\n\t/// Video threads (0 = auto).\n\tpub video_threads: c_int,\n\t/// Encoded pixel format name (\"yuv420p\").\n\tpub video_pix_fmt: [c_char; 64],\n\t/// Whether the output is an image sequence.\n\tpub video_is_image_sequence: c_int,\n\t/// Scaling method (`OAKCODEC_ENCODING_SCALING_*`).\n\tpub video_scaling_method: c_int,\n\t/// Whether audio is exported.\n\tpub audio_enabled: c_int,\n\t/// Audio codec id.\n\tpub audio_codec: c_int,\n\t/// Audio sample rate.\n\tpub audio_sample_rate: c_int,\n\t/// Audio channel layout mask.\n\tpub audio_channel_layout: u64,\n\t/// Audio sample format (`olive::core::SampleFormat::Format` as int).\n\tpub audio_sample_format: c_int,\n\t/// Audio bit rate.\n\tpub audio_bit_rate: i64,\n\t/// Whether subtitles are exported.\n\tpub subtitles_enabled: c_int,\n\t/// Subtitle codec id.\n\tpub subtitles_codec: c_int,\n\t/// Whether subtitles go to a sidecar file.\n\tpub subtitles_are_sidecar: c_int,\n\t/// Sidecar subtitle format.\n\tpub subtitles_sidecar_format: c_int,\n\t/// Output OCIO colorspace name (empty = reference space).\n\tpub color_transform_output: [c_char; 256],\n\t/// Export length in seconds (rational).\n\tpub export_length_num: c_int,\n\t/// Export length denominator.\n\tpub export_length_den: c_int,\n\t/// Whether a custom export range is in effect.\n\tpub has_custom_range: c_int,\n\t/// Custom range in (seconds, rational).\n\tpub custom_range_in_num: i64,\n\t/// Custom range in denominator.\n\tpub custom_range_in_den: i64,\n\t/// Custom range out numerator.\n\tpub custom_range_out_num: i64,\n\t/// Custom range out denominator.\n\tpub custom_range_out_den: i64,\n}\n\nextern \"C\" {\n\t/// `oakcodec_set_task_submit_cb` — install the task submitter (`None`\n\t/// unregisters, matching the header's `cb == NULL`).\n\tpub fn oakcodec_set_task_submit_cb(\n\t\tcb: Option\u003cOakCodecTaskSubmitFn\u003e,\n\t\tuserdata: *mut c_void,\n\t);\n\t/// `oakcodec_task_submit_is_registered`.\n\tpub fn oakcodec_task_submit_is_registered() -\u003e c_int;\n\n\t/// `oakcodec_decoder_init`.\n\tpub fn oakcodec_decoder_init() -\u003e OakDecoder;\n\t/// `oakcodec_decoder_free`.\n\tpub fn oakcodec_decoder_free(decoder: *mut OakDecoder);\n\t/// `oakcodec_decoder_open`.\n\tpub fn oakcodec_decoder_open(\n\t\tdecoder: OakDecoder,\n\t\tfilename: *const c_char,\n\t\tstream_index: c_int,\n\t) -\u003e c_int;\n\t/// `oakcodec_decoder_close`.\n\tpub fn oakcodec_decoder_close(decoder: OakDecoder) -\u003e c_int;\n\t/// `oakcodec_decoder_is_open`.\n\tpub fn oakcodec_decoder_is_open(decoder: OakDecoder) -\u003e c_int;\n\t/// `oakcodec_decoder_decode_audio`.\n\tpub fn oakcodec_decoder_decode_audio(\n\t\tdecoder: OakDecoder,\n\t\tin_num: c_int,\n\t\tin_den: c_int,\n\t\tout_num: c_int,\n\t\tout_den: c_int,\n\t\tsample_rate: c_int,\n\t\tchannel_layout: c_uint,\n\t\tbuf: *mut f32,\n\t\tbuf_frames: c_int,\n\t) -\u003e c_int;\n\t/// `oakcodec_decoder_conform_audio` — the whole-stream conform pass.\n\tpub fn oakcodec_decoder_conform_audio(\n\t\tdecoder: OakDecoder,\n\t\toutput_filenames: *const *const c_char,\n\t\tfilename_count: c_int,\n\t\tsample_rate: c_int,\n\t\tchannel_layout: u64,\n\t\tsample_format: c_int,\n\t\tcancelled: OakCancelAtom,\n\t) -\u003e c_int;\n\t/// `oakcodec_decoder_last_error`.\n\tpub fn oakcodec_decoder_last_error(decoder: OakDecoder, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\n\t// --- decoder.h: image-sequence heuristics ---\n\t/// `oakcodec_decoder_get_image_sequence_digit_count`.\n\tpub fn oakcodec_decoder_get_image_sequence_digit_count(filename: *const c_char) -\u003e c_int;\n\t/// `oakcodec_decoder_get_image_sequence_index`.\n\tpub fn oakcodec_decoder_get_image_sequence_index(filename: *const c_char) -\u003e i64;\n\t/// `oakcodec_decoder_transform_image_sequence_file_name` (two-stage).\n\tpub fn oakcodec_decoder_transform_image_sequence_file_name(\n\t\tfilename: *const c_char,\n\t\tnumber: i64,\n\t\tbuf: *mut c_char,\n\t\tbuf_size: c_int,\n\t) -\u003e c_int;\n\n\t// --- encoder.h extras ---\n\t/// `oakcodec_encoder_get_desired_pixel_format`.\n\tpub fn oakcodec_encoder_get_desired_pixel_format(encoder: OakEncoder) -\u003e c_int;\n\t/// `oakcodec_encoding_generate_matrix` (row-major 4x4).\n\tpub fn oakcodec_encoding_generate_matrix(\n\t\tmethod: c_int,\n\t\tsrc_width: c_int,\n\t\tsrc_height: c_int,\n\t\tdst_width: c_int,\n\t\tdst_height: c_int,\n\t\tout_matrix: *mut f64,\n\t) -\u003e c_int;\n\n\t// --- proxy.h ---\n\t/// `oakcodec_proxy_find_ffmpeg` (buf/size getter).\n\tpub fn oakcodec_proxy_find_ffmpeg(configured_path: *const c_char, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oakcodec_proxy_params_default`.\n\tpub fn oakcodec_proxy_params_default(out: *mut OakCodecProxyParams) -\u003e c_int;\n\n\t/// `oakcodec_encoder_init`.\n\tpub fn oakcodec_encoder_init(params: *const OakCodecEncodingParams) -\u003e OakEncoder;\n\t/// `oakcodec_encoder_free`.\n\tpub fn oakcodec_encoder_free(encoder: *mut OakEncoder);\n\t/// `oakcodec_encoder_open`.\n\tpub fn oakcodec_encoder_open(encoder: OakEncoder) -\u003e c_int;\n\t/// `oakcodec_encoder_write_video`.\n\tpub fn oakcodec_encoder_write_video(encoder: OakEncoder, frame: OakFrame) -\u003e c_int;\n\t/// `oakcodec_encoder_write_audio`.\n\tpub fn oakcodec_encoder_write_audio(\n\t\tencoder: OakEncoder,\n\t\tsamples: *const f32,\n\t\tframe_count: c_int,\n\t) -\u003e c_int;\n\t/// `oakcodec_encoder_write_subtitle`.\n\tpub fn oakcodec_encoder_write_subtitle(\n\t\tencoder: OakEncoder,\n\t\ttext: *const c_char,\n\t\tin_seconds: f64,\n\t\tout_seconds: f64,\n\t) -\u003e c_int;\n\t/// `oakcodec_encoder_flush`.\n\tpub fn oakcodec_encoder_flush(encoder: OakEncoder) -\u003e c_int;\n\t/// `oakcodec_encoder_last_error`.\n\tpub fn oakcodec_encoder_last_error(encoder: OakEncoder, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","common.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oakcommon / oakcore C ABI imports. The task module reaches the shared\n//! value types through `include/common/videoparams.h`,\n//! `include/common/colortransform.h` and the oakcore audio-params C ABI.\n//! Signatures mirror the headers verbatim.\n\nuse std::ffi::{c_char, c_int};\n\nuse crate::handle::CHandle;\n\n/// Mirror of `OakVideoParams` (`include/common/videoparams.h`).\n///\n/// A by-value handle (shared_ptr semantics); its `{ctx, addref, release,\n/// abi_version}` layout is identical to [`CHandle`], so it is a type alias —\n/// every oakcommon handle is created and destroyed inside the oakcommon DLL\n/// and only crosses the FFI boundary as this opaque by-value struct.\npub type OakVideoParams = CHandle;\n\n/// Mirror of `OakColorTransform` (`include/common/colortransform.h`); see\n/// [`OakVideoParams`] for the alias rationale.\npub type OakColorTransform = CHandle;\n\n/// Mirror of `OakAudioParams` — oakcore audio parameters. Declared as a\n/// `CHandle`-shaped opaque; the oakcore C ABI header that owns its layout is\n/// the authoritative source once the oakcore C ABI ships.\npub type OakAudioParams = CHandle;\n\n/// `OAKCOMMON_VIDEO_TYPE_STILL` (`include/common/videoparams.h`).\npub const OAKCOMMON_VIDEO_TYPE_STILL: c_int = 1;\n/// `OAKCOMMON_VIDEO_TYPE_IMAGE_SEQUENCE` (`include/common/videoparams.h`).\npub const OAKCOMMON_VIDEO_TYPE_IMAGE_SEQUENCE: c_int = 2;\n\nextern \"C\" {\n\t// --- videoparams.h ---\n\t/// `oakcommon_videoparams_init`.\n\tpub fn oakcommon_videoparams_init() -\u003e OakVideoParams;\n\t/// `oakcommon_videoparams_init_basic`.\n\tpub fn oakcommon_videoparams_init_basic(\n\t\twidth: c_int,\n\t\theight: c_int,\n\t\tpixel_format: c_int,\n\t\tnb_channels: c_int,\n\t\tpixel_aspect_num: c_int,\n\t\tpixel_aspect_den: c_int,\n\t\tinterlacing: c_int,\n\t\tdivider: c_int,\n\t) -\u003e OakVideoParams;\n\t/// `oakcommon_videoparams_free`.\n\tpub fn oakcommon_videoparams_free(params: *mut OakVideoParams);\n\t/// `oakcommon_videoparams_get_width`.\n\tpub fn oakcommon_videoparams_get_width(params: OakVideoParams, width: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_height`.\n\tpub fn oakcommon_videoparams_get_height(params: OakVideoParams, height: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_format`.\n\tpub fn oakcommon_videoparams_get_format(params: OakVideoParams, format: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_format`.\n\tpub fn oakcommon_videoparams_set_format(params: OakVideoParams, format: c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_time_base`.\n\tpub fn oakcommon_videoparams_get_time_base(\n\t\tparams: OakVideoParams,\n\t\tnumerator: *mut c_int,\n\t\tdenominator: *mut c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_time_base`.\n\tpub fn oakcommon_videoparams_set_time_base(\n\t\tparams: OakVideoParams,\n\t\tnumerator: c_int,\n\t\tdenominator: c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_frame_rate_as_time_base` — frame rate flipped\n\t/// to a frame duration rational.\n\tpub fn oakcommon_videoparams_frame_rate_as_time_base(\n\t\tparams: OakVideoParams,\n\t\tout_num: *mut c_int,\n\t\tout_den: *mut c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_frame_rate`.\n\tpub fn oakcommon_videoparams_set_frame_rate(\n\t\tparams: OakVideoParams,\n\t\tnumerator: c_int,\n\t\tdenominator: c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_video_type`.\n\tpub fn oakcommon_videoparams_get_video_type(params: OakVideoParams, out_type: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_video_type`.\n\tpub fn oakcommon_videoparams_set_video_type(params: OakVideoParams, video_type: c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_start_time`.\n\tpub fn oakcommon_videoparams_set_start_time(params: OakVideoParams, start: i64) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_duration`.\n\tpub fn oakcommon_videoparams_set_duration(params: OakVideoParams, duration: i64) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_is_valid`.\n\tpub fn oakcommon_videoparams_get_is_valid(params: OakVideoParams, out_valid: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_frame_rate`.\n\tpub fn oakcommon_videoparams_get_frame_rate(\n\t\tparams: OakVideoParams,\n\t\tnumerator: *mut c_int,\n\t\tdenominator: *mut c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_duration`.\n\tpub fn oakcommon_videoparams_get_duration(params: OakVideoParams, duration: *mut i64) -\u003e c_int;\n\n\t// --- colortransform.h ---\n\t/// `oakcommon_colortransform_init_display`.\n\tpub fn oakcommon_colortransform_init_display(\n\t\tdisplay: *const c_char,\n\t\tview: *const c_char,\n\t\tlook: *const c_char,\n\t) -\u003e OakColorTransform;\n\t/// `oakcommon_colortransform_init_output`.\n\tpub fn oakcommon_colortransform_init_output(\n\t\toutput: *const c_char,\n\t\tdisplay: *const c_char,\n\t\tview: *const c_char,\n\t\tlook: *const c_char,\n\t) -\u003e OakColorTransform;\n\t/// `oakcommon_colortransform_free`.\n\tpub fn oakcommon_colortransform_free(transform: *mut OakColorTransform);\n\n\t// --- config.h ---\n\t/// `oakcommon_config_get` (buf/size getter; returns needed size).\n\tpub fn oakcommon_config_get(\n\t\tgroup: *const c_char,\n\t\tkey: *const c_char,\n\t\tbuf: *mut c_char,\n\t\tbuf_size: c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_config_get_int`.\n\tpub fn oakcommon_config_get_int(group: *const c_char, key: *const c_char, default: c_int) -\u003e c_int;\n\t/// `oakcommon_config_get_bool`.\n\tpub fn oakcommon_config_get_bool(group: *const c_char, key: *const c_char, default: c_int) -\u003e c_int;\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","mod.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! C ABI imports from other oak modules (signatures mirror the public\n//! headers verbatim; resolved at link time).\n\npub mod codec;\npub mod common;\npub mod node;\npub mod render;\npub mod timeline;\npub mod undo;\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","node.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oaknode C ABI imports. The task module drives node-graph work through\n//! `include/node/project.h` (project shell), `include/node/folder.h`,\n//! `include/node/footage.h`, `include/node/sequence.h`,\n//! `include/node/colormanager.h` and `include/node/serializer.h`. Signatures\n//! mirror the headers verbatim; node handles are `CHandle` values whose\n//! underlying objects live inside the node library.\n\nuse std::ffi::{c_char, c_int, c_void};\n\nuse crate::bridge::common::OakVideoParams;\nuse crate::bridge::render::OakCancelAtom;\nuse crate::handle::CHandle;\n\n/// `OakNodeProject` (`include/node/project.h`).\npub type OakNodeProject = CHandle;\n/// `OakNodeNode` (`include/node/node.h`).\npub type OakNodeNode = CHandle;\n/// `OakNodeFolder` (`include/node/folder.h`).\npub type OakNodeFolder = CHandle;\n/// `OakNodeFootage` (`include/node/footage.h`).\npub type OakNodeFootage = CHandle;\n/// `OakNodeSequence` (`include/node/sequence.h`).\npub type OakNodeSequence = CHandle;\n/// `OakNodeTrack` (`include/node/track.h`).\npub type OakNodeTrack = CHandle;\n/// `OakNodeTrackList` (`include/node/track.h`).\npub type OakNodeTrackList = CHandle;\n/// `OakNodeBlock` (`include/node/block.h`).\npub type OakNodeBlock = CHandle;\n/// `OakNodeColorManager` (`include/node/colormanager.h`).\npub type OakNodeColorManager = CHandle;\n/// `OakNodeSerializerSaveData` (`include/node/serializer.h`).\npub type OakNodeSerializerSaveData = CHandle;\n/// `OakNodeSerializerLoadData` (`include/node/serializer.h`).\npub type OakNodeSerializerLoadData = CHandle;\n\n/// `OAKNODE_SEQUENCE_TEXTURE_INPUT` (`include/node/sequence.h`).\npub const OAKNODE_SEQUENCE_TEXTURE_INPUT: \u0026str = \"tex_in\";\n/// `OAKNODE_SEQUENCE_SAMPLES_INPUT` (`include/node/sequence.h`).\npub const OAKNODE_SEQUENCE_SAMPLES_INPUT: \u0026str = \"samples_in\";\n/// `OAKNODE_TRACK_TYPE_VIDEO` (`include/node/track.h`).\npub const OAKNODE_TRACK_TYPE_VIDEO: c_int = 0;\n/// `OAKNODE_TRACK_TYPE_AUDIO` (`include/node/track.h`).\npub const OAKNODE_TRACK_TYPE_AUDIO: c_int = 1;\n/// `OAKNODE_TRACK_TYPE_NONE` (`include/node/track.h`).\npub const OAKNODE_TRACK_TYPE_NONE: c_int = -1;\n/// `OAKNODE_BLOCK_OTHER` (`include/node/block.h`).\npub const OAKNODE_BLOCK_OTHER: c_int = 0;\n/// `OAKNODE_BLOCK_CLIP` (`include/node/block.h`).\npub const OAKNODE_BLOCK_CLIP: c_int = 1;\n/// `OAKNODE_BLOCK_GAP` (`include/node/block.h`).\npub const OAKNODE_BLOCK_GAP: c_int = 2;\n/// `OAKNODE_BLOCK_TRANSITION` (`include/node/block.h`).\npub const OAKNODE_BLOCK_TRANSITION: c_int = 3;\n/// `OAKNODE_TRANSITION_CROSS_DISSOLVE` (`include/node/block.h`).\npub const OAKNODE_TRANSITION_CROSS_DISSOLVE: c_int = 0;\n/// `OAKNODE_TRANSITION_OUT_BLOCK_INPUT` (`include/node/block.h`).\npub const OAKNODE_TRANSITION_OUT_BLOCK_INPUT: \u0026str = \"out_block_in\";\n/// `OAKNODE_TRANSITION_IN_BLOCK_INPUT` (`include/node/block.h`).\npub const OAKNODE_TRANSITION_IN_BLOCK_INPUT: \u0026str = \"in_block_in\";\n\n/// Node type ids used by the OTIO tasks\n/// (`src/task/src/project/loadotio/loadotio.cpp`).\n/// `k_sequence_id` — the sequence node type.\npub const OAKNODE_TYPE_SEQUENCE: \u0026str = \"org.olivevideoeditor.Olive.sequence\";\n/// `k_transform_id` — the transform node type.\npub const OAKNODE_TYPE_TRANSFORM: \u0026str = \"org.olivevideoeditor.Olive.transform\";\n/// `k_volume_id` — the volume node type.\npub const OAKNODE_TYPE_VOLUME: \u0026str = \"org.olivevideoeditor.Olive.volume\";\n\n/// C string helper: build a NUL-terminated copy of a Rust string for the\n/// C ABI. The buffer is leaked for the duration of the process; callers\n/// pass short-lived literals.\npub fn cstr(s: \u0026str) -\u003e *const c_char {\n\tlet mut bytes = s.as_bytes().to_vec();\n\tbytes.push(0);\n\tbytes.leak().as_ptr() as *const c_char\n}\n\nextern \"C\" {\n\t// --- node.h ---\n\t/// `oaknode_node_get_label` (two-stage string getter).\n\tpub fn oaknode_node_get_label(node: OakNodeNode, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_node_set_label`.\n\tpub fn oaknode_node_set_label(node: OakNodeNode, label: *const c_char) -\u003e c_int;\n\t/// `oaknode_node_get_id` (two-stage string getter).\n\tpub fn oaknode_node_get_id(node: OakNodeNode, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_node_get_project` (borrowed project handle out).\n\tpub fn oaknode_node_get_project(node: OakNodeNode, out: *mut OakNodeProject) -\u003e c_int;\n\t/// `oaknode_node_input_get_connected_node` (borrowed handle out).\n\tpub fn oaknode_node_input_get_connected_node(\n\t\tnode: OakNodeNode,\n\t\tinput_id: *const c_char,\n\t\tout_node: *mut OakNodeNode,\n\t) -\u003e c_int;\n\t/// `oaknode_node_set_context_position` (live, non-undoable).\n\tpub fn oaknode_node_set_context_position(\n\t\tnode: OakNodeNode,\n\t\tcontext: OakNodeNode,\n\t\tx: f64,\n\t\ty: f64,\n\t\texpanded: c_int,\n\t) -\u003e c_int;\n\t/// `oaknode_node_find_input_footage` (borrowed handle out).\n\tpub fn oaknode_node_find_input_footage(node: OakNodeNode, out: *mut OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_node_get_input_string` (two-stage string getter).\n\tpub fn oaknode_node_get_input_string(\n\t\tnode: OakNodeNode,\n\t\tinput_id: *const c_char,\n\t\tbuf: *mut c_char,\n\t\tbuf_size: c_int,\n\t) -\u003e c_int;\n\t/// `oaknode_node_create_copy` — orphaned deep copy of a node.\n\tpub fn oaknode_node_create_copy(node: OakNodeNode) -\u003e OakNodeNode;\n\t/// `oaknode_node_copy_inputs`.\n\tpub fn oaknode_node_copy_inputs(dst: OakNodeNode, src: OakNodeNode, include_connections: c_int) -\u003e c_int;\n\t/// `oaknode_node_connect`.\n\tpub fn oaknode_node_connect(output_node: OakNodeNode, input_node: OakNodeNode, input_id: *const c_char) -\u003e c_int;\n\t/// `oaknode_node_set_value_hint_track`.\n\tpub fn oaknode_node_set_value_hint_track(\n\t\tnode: OakNodeNode,\n\t\tinput_id: *const c_char,\n\t\ttrack_type: c_int,\n\t\ttrack_index: c_int,\n\t) -\u003e c_int;\n\t/// `oaknode_node_get_video_frame_cache` (borrowed cache out).\n\tpub fn oaknode_node_get_video_frame_cache(\n\t\tnode: OakNodeNode,\n\t\tout: *mut crate::bridge::render::OakRenderCache,\n\t) -\u003e c_int;\n\t/// `oaknode_node_free`.\n\tpub fn oaknode_node_free(node: *mut OakNodeNode);\n\t/// `oaknode_command_create_remove_node` — undoable node removal.\n\tpub fn oaknode_command_create_remove_node(node: OakNodeNode) -\u003e crate::bridge::undo::OakUndoCommand;\n\n\t// --- factory.h ---\n\t/// `oaknode_factory_create_from_id`.\n\tpub fn oaknode_factory_create_from_id(type_id: *const c_char) -\u003e OakNodeNode;\n\n\t// --- node.h (viewer) ---\n\t/// `oaknode_viewer_set_video_params`.\n\tpub fn oaknode_viewer_set_video_params(viewer: OakNodeNode, params: *const OakVideoParams) -\u003e c_int;\n\t/// `oaknode_viewer_set_audio_params`.\n\tpub fn oaknode_viewer_set_audio_params(viewer: OakNodeNode, params: *const std::ffi::c_void) -\u003e c_int;\n\n\t// --- block.h ---\n\t/// `oaknode_block_clip_create`.\n\tpub fn oaknode_block_clip_create() -\u003e OakNodeBlock;\n\t/// `oaknode_block_gap_create`.\n\tpub fn oaknode_block_gap_create() -\u003e OakNodeBlock;\n\t/// `oaknode_block_transition_create` (kind: `OakNodeTransitionKind`).\n\tpub fn oaknode_block_transition_create(kind: c_int) -\u003e OakNodeBlock;\n\t/// `oaknode_block_as_node` (borrowed cast).\n\tpub fn oaknode_block_as_node(block: OakNodeBlock) -\u003e OakNodeNode;\n\t/// `oaknode_block_get_kind`.\n\tpub fn oaknode_block_get_kind(block: OakNodeBlock, out_kind: *mut c_int) -\u003e c_int;\n\t/// `oaknode_block_get_in`.\n\tpub fn oaknode_block_get_in(block: OakNodeBlock, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_block_get_length`.\n\tpub fn oaknode_block_get_length(block: OakNodeBlock, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_block_set_length_and_media_out`.\n\tpub fn oaknode_block_set_length_and_media_out(block: OakNodeBlock, numerator: c_int, denominator: c_int) -\u003e c_int;\n\t/// `oaknode_clip_set_media_in`.\n\tpub fn oaknode_clip_set_media_in(clip: OakNodeBlock, numerator: c_int, denominator: c_int) -\u003e c_int;\n\t/// `oaknode_transition_get_in_offset`.\n\tpub fn oaknode_transition_get_in_offset(transition: OakNodeBlock, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_transition_get_out_offset`.\n\tpub fn oaknode_transition_get_out_offset(transition: OakNodeBlock, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_transition_set_offsets_and_length`.\n\tpub fn oaknode_transition_set_offsets_and_length(\n\t\ttransition: OakNodeBlock,\n\t\tin_num: c_int,\n\t\tin_den: c_int,\n\t\tout_num: c_int,\n\t\tout_den: c_int,\n\t) -\u003e c_int;\n\n\t// --- project.h ---\n\t/// `oaknode_project_init`.\n\tpub fn oaknode_project_init() -\u003e OakNodeProject;\n\t/// `oaknode_project_free`.\n\tpub fn oaknode_project_free(project: *mut OakNodeProject);\n\t/// `oaknode_project_initialize`.\n\tpub fn oaknode_project_initialize(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_clear`.\n\tpub fn oaknode_project_clear(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_root`.\n\tpub fn oaknode_project_root(project: OakNodeProject) -\u003e OakNodeFolder;\n\t/// `oaknode_project_name`.\n\tpub fn oaknode_project_name(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_filename`.\n\tpub fn oaknode_project_filename(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_pretty_filename`.\n\tpub fn oaknode_project_pretty_filename(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_set_filename`.\n\tpub fn oaknode_project_set_filename(project: OakNodeProject, filename: *const c_char) -\u003e c_int;\n\t/// `oaknode_project_is_modified`.\n\tpub fn oaknode_project_is_modified(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_set_modified`.\n\tpub fn oaknode_project_set_modified(project: OakNodeProject, modified: c_int) -\u003e c_int;\n\t/// `oaknode_project_is_new`.\n\tpub fn oaknode_project_is_new(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_cache_path`.\n\tpub fn oaknode_project_cache_path(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_copy_settings`.\n\tpub fn oaknode_project_copy_settings(dst: OakNodeProject, src: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_get_cache_location_setting`.\n\tpub fn oaknode_project_get_cache_location_setting(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_set_cache_location_setting`.\n\tpub fn oaknode_project_set_cache_location_setting(project: OakNodeProject, setting: c_int) -\u003e c_int;\n\t/// `oaknode_project_get_custom_cache_path`.\n\tpub fn oaknode_project_get_custom_cache_path(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_set_custom_cache_path`.\n\tpub fn oaknode_project_set_custom_cache_path(project: OakNodeProject, path: *const c_char) -\u003e c_int;\n\t/// `oaknode_project_get_uuid`.\n\tpub fn oaknode_project_get_uuid(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_add_node`.\n\tpub fn oaknode_project_add_node(project: OakNodeProject, node: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_project_remove_node`.\n\tpub fn oaknode_project_remove_node(project: OakNodeProject, node: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_project_node_count`.\n\tpub fn oaknode_project_node_count(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_node_at`.\n\tpub fn oaknode_project_node_at(project: OakNodeProject, index: c_int) -\u003e OakNodeNode;\n\n\t// --- folder.h ---\n\t/// `oaknode_folder_create`.\n\tpub fn oaknode_folder_create(project: OakNodeProject) -\u003e OakNodeFolder;\n\t/// `oaknode_folder_child_count`.\n\tpub fn oaknode_folder_child_count(folder: OakNodeFolder) -\u003e c_int;\n\t/// `oaknode_folder_child_at`.\n\tpub fn oaknode_folder_child_at(folder: OakNodeFolder, index: c_int) -\u003e OakNodeNode;\n\t/// `oaknode_folder_add_child`.\n\tpub fn oaknode_folder_add_child(folder: OakNodeFolder, child: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_folder_as_node`.\n\tpub fn oaknode_folder_as_node(folder: OakNodeFolder) -\u003e OakNodeNode;\n\t/// `oaknode_command_create_folder_add_child`.\n\tpub fn oaknode_command_create_folder_add_child(folder: OakNodeFolder, child: OakNodeNode) -\u003e crate::bridge::undo::OakUndoCommand;\n\t/// `oaknode_folder_remove_child`.\n\tpub fn oaknode_folder_remove_child(folder: OakNodeFolder, child: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_folder_move_children`.\n\tpub fn oaknode_folder_move_children(nodes: *const OakNodeNode, count: c_int, dest_folder: OakNodeFolder) -\u003e c_int;\n\t/// `oaknode_folder_has_child_recursive`.\n\tpub fn oaknode_folder_has_child_recursive(folder: OakNodeFolder, child: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_folder_index_of_child`.\n\tpub fn oaknode_folder_index_of_child(folder: OakNodeFolder, child: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_folder_parent_of`.\n\tpub fn oaknode_folder_parent_of(node: OakNodeNode) -\u003e OakNodeFolder;\n\n\t// --- footage.h ---\n\t/// `oaknode_footage_create`.\n\tpub fn oaknode_footage_create(project: OakNodeProject, filename: *const c_char) -\u003e OakNodeFootage;\n\t/// `oaknode_footage_as_node`.\n\tpub fn oaknode_footage_as_node(footage: OakNodeFootage) -\u003e OakNodeNode;\n\t/// `oaknode_footage_filename`.\n\tpub fn oaknode_footage_filename(footage: OakNodeFootage, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_footage_set_filename`.\n\tpub fn oaknode_footage_set_filename(footage: OakNodeFootage, filename: *const c_char) -\u003e c_int;\n\t/// `oaknode_footage_is_valid`.\n\tpub fn oaknode_footage_is_valid(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_timestamp`.\n\tpub fn oaknode_footage_timestamp(footage: OakNodeFootage, out_timestamp: *mut i64) -\u003e c_int;\n\t/// `oaknode_footage_set_timestamp`.\n\tpub fn oaknode_footage_set_timestamp(footage: OakNodeFootage, timestamp: i64) -\u003e c_int;\n\t/// `oaknode_footage_decoder`.\n\tpub fn oaknode_footage_decoder(footage: OakNodeFootage, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_footage_total_stream_count`.\n\tpub fn oaknode_footage_total_stream_count(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_video_stream_count`.\n\tpub fn oaknode_footage_video_stream_count(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_audio_stream_count`.\n\tpub fn oaknode_footage_audio_stream_count(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_subtitle_stream_count`.\n\tpub fn oaknode_footage_subtitle_stream_count(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_duration`.\n\tpub fn oaknode_footage_duration(footage: OakNodeFootage, out_numerator: *mut c_int, out_denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_footage_proxy_enabled`.\n\tpub fn oaknode_footage_proxy_enabled(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_set_proxy_enabled`.\n\tpub fn oaknode_footage_set_proxy_enabled(footage: OakNodeFootage, enabled: c_int) -\u003e c_int;\n\t/// `oaknode_footage_proxy_path`.\n\tpub fn oaknode_footage_proxy_path(footage: OakNodeFootage, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_footage_proxy_state`.\n\tpub fn oaknode_footage_proxy_state(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_set_proxy`.\n\tpub fn oaknode_footage_set_proxy(footage: OakNodeFootage, path: *const c_char, state: c_int, video_stream_index: c_int, preset_version: c_int, enabled: c_int) -\u003e c_int;\n\t/// `oaknode_footage_clear_proxy`.\n\tpub fn oaknode_footage_clear_proxy(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_get_video_params`.\n\tpub fn oaknode_footage_get_video_params(footage: OakNodeFootage, index: c_int, out: *mut OakVideoParams) -\u003e c_int;\n\t/// `oaknode_footage_set_video_params`.\n\tpub fn oaknode_footage_set_video_params(footage: OakNodeFootage, index: c_int, params: *const OakVideoParams) -\u003e c_int;\n\t/// `oaknode_footage_get_video_length`.\n\tpub fn oaknode_footage_get_video_length(footage: OakNodeFootage, out_num: *mut i64, out_den: *mut i64) -\u003e c_int;\n\t/// `oaknode_footage_set_cancel_atom`.\n\tpub fn oaknode_footage_set_cancel_atom(footage: OakNodeFootage, atom: OakCancelAtom) -\u003e c_int;\n\n\t// --- sequence.h ---\n\t/// `oaknode_sequence_create`.\n\tpub fn oaknode_sequence_create() -\u003e OakNodeSequence;\n\t/// `oaknode_sequence_free`.\n\tpub fn oaknode_sequence_free(sequence: *mut OakNodeSequence);\n\t/// `oaknode_sequence_set_default_parameters`.\n\tpub fn oaknode_sequence_set_default_parameters(sequence: OakNodeSequence) -\u003e c_int;\n\t/// `oaknode_sequence_as_node`.\n\tpub fn oaknode_sequence_as_node(sequence: OakNodeSequence) -\u003e OakNodeNode;\n\t/// `oaknode_sequence_from_node`.\n\tpub fn oaknode_sequence_from_node(node: OakNodeNode) -\u003e OakNodeSequence;\n\t/// `oaknode_sequence_get_track_list`.\n\tpub fn oaknode_sequence_get_track_list(sequence: OakNodeSequence, r#type: c_int, out: *mut OakNodeTrackList) -\u003e c_int;\n\t/// `oaknode_sequence_get_track_count`.\n\tpub fn oaknode_sequence_get_track_count(sequence: OakNodeSequence, r#type: c_int, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_track_at`.\n\tpub fn oaknode_sequence_get_track_at(sequence: OakNodeSequence, r#type: c_int, index: c_int, out: *mut OakNodeTrack) -\u003e c_int;\n\t/// `oaknode_sequence_get_all_track_count`.\n\tpub fn oaknode_sequence_get_all_track_count(sequence: OakNodeSequence, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_all_track_at`.\n\tpub fn oaknode_sequence_get_all_track_at(sequence: OakNodeSequence, index: c_int, out: *mut OakNodeTrack) -\u003e c_int;\n\t/// `oaknode_sequence_get_playhead`.\n\tpub fn oaknode_sequence_get_playhead(sequence: OakNodeSequence, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_set_playhead`.\n\tpub fn oaknode_sequence_set_playhead(sequence: OakNodeSequence, numerator: c_int, denominator: c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_length`.\n\tpub fn oaknode_sequence_get_length(sequence: OakNodeSequence, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_video_length`.\n\tpub fn oaknode_sequence_get_video_length(sequence: OakNodeSequence, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_audio_length`.\n\tpub fn oaknode_sequence_get_audio_length(sequence: OakNodeSequence, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_verify_length`.\n\tpub fn oaknode_sequence_verify_length(sequence: OakNodeSequence) -\u003e c_int;\n\t/// `oaknode_sequence_get_video_stream_count`.\n\tpub fn oaknode_sequence_get_video_stream_count(sequence: OakNodeSequence, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_audio_stream_count`.\n\tpub fn oaknode_sequence_get_audio_stream_count(sequence: OakNodeSequence, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_video_params`.\n\tpub fn oaknode_sequence_get_video_params(sequence: OakNodeSequence, index: c_int, out: *mut OakVideoParams) -\u003e c_int;\n\t/// `oaknode_sequence_set_video_params`.\n\tpub fn oaknode_sequence_set_video_params(sequence: OakNodeSequence, index: c_int, params: OakVideoParams) -\u003e c_int;\n\t/// `oaknode_sequence_get_audio_params`.\n\tpub fn oaknode_sequence_get_audio_params(sequence: OakNodeSequence, index: c_int, out: *mut *const c_void) -\u003e c_int;\n\t/// `oaknode_sequence_set_audio_params`.\n\tpub fn oaknode_sequence_set_audio_params(sequence: OakNodeSequence, index: c_int, params: *const c_void) -\u003e c_int;\n\n\t// --- track.h ---\n\t/// `oaknode_track_as_node`.\n\tpub fn oaknode_track_as_node(track: OakNodeTrack) -\u003e OakNodeNode;\n\t/// `oaknode_track_create`.\n\tpub fn oaknode_track_create(r#type: c_int) -\u003e OakNodeTrack;\n\t/// `oaknode_track_free`.\n\tpub fn oaknode_track_free(track: *mut OakNodeTrack);\n\t/// `oaknode_track_get_type`.\n\tpub fn oaknode_track_get_type(track: OakNodeTrack, r#type: *mut c_int) -\u003e c_int;\n\t/// `oaknode_track_get_length`.\n\tpub fn oaknode_track_get_length(track: OakNodeTrack, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_track_get_block_count`.\n\tpub fn oaknode_track_get_block_count(track: OakNodeTrack, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_track_get_block_at` (borrowed handle out).\n\tpub fn oaknode_track_get_block_at(track: OakNodeTrack, index: c_int, out: *mut OakNodeBlock) -\u003e c_int;\n\t/// `oaknode_track_append_block`.\n\tpub fn oaknode_track_append_block(track: OakNodeTrack, block: OakNodeBlock) -\u003e c_int;\n\t/// `oaknode_track_set_type`.\n\tpub fn oaknode_track_set_type(track: OakNodeTrack, r#type: c_int) -\u003e c_int;\n\t/// `oaknode_track_get_index`.\n\tpub fn oaknode_track_get_index(track: OakNodeTrack, index: *mut c_int) -\u003e c_int;\n\t/// `oaknode_track_set_index`.\n\tpub fn oaknode_track_set_index(track: OakNodeTrack, index: c_int) -\u003e c_int;\n\t/// `oaknode_track_get_sequence`.\n\tpub fn oaknode_track_get_sequence(track: OakNodeTrack, out: *mut OakNodeSequence) -\u003e c_int;\n\t/// `oaknode_tracklist_get_sequence`.\n\tpub fn oaknode_tracklist_get_sequence(list: OakNodeTrackList, out: *mut OakNodeSequence) -\u003e c_int;\n\t/// `oaknode_tracklist_get_track_input_id`.\n\tpub fn oaknode_tracklist_get_track_input_id(list: OakNodeTrackList, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_array_append`.\n\tpub fn oaknode_tracklist_array_append(list: OakNodeTrackList) -\u003e c_int;\n\t/// `oaknode_tracklist_array_remove_last`.\n\tpub fn oaknode_tracklist_array_remove_last(list: OakNodeTrackList) -\u003e c_int;\n\t/// `oaknode_tracklist_get_array_index_from_cache_index`.\n\tpub fn oaknode_tracklist_get_array_index_from_cache_index(list: OakNodeTrackList, cache_index: c_int, out_index: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_get_type`.\n\tpub fn oaknode_tracklist_get_type(list: OakNodeTrackList, r#type: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_get_track_count`.\n\tpub fn oaknode_tracklist_get_track_count(list: OakNodeTrackList, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_get_track_at`.\n\tpub fn oaknode_tracklist_get_track_at(list: OakNodeTrackList, index: c_int, out: *mut OakNodeTrack) -\u003e c_int;\n\t/// `oaknode_tracklist_get_total_length`.\n\tpub fn oaknode_tracklist_get_total_length(list: OakNodeTrackList, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_get_array_size`.\n\tpub fn oaknode_tracklist_get_array_size(list: OakNodeTrackList, size: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_add_track`.\n\tpub fn oaknode_tracklist_add_track(list: OakNodeTrackList, track: OakNodeTrack) -\u003e c_int;\n\t/// `oaknode_tracklist_remove_track`.\n\tpub fn oaknode_tracklist_remove_track(list: OakNodeTrackList, track: OakNodeTrack) -\u003e c_int;\n\n\t// --- colormanager.h ---\n\t/// `oaknode_colormanager_init`.\n\tpub fn oaknode_colormanager_init(project: OakNodeProject) -\u003e OakNodeColorManager;\n\t/// `oaknode_colormanager_free`.\n\tpub fn oaknode_colormanager_free(manager: *mut OakNodeColorManager);\n\t/// `oaknode_colormanager_wrap_borrowed`.\n\tpub fn oaknode_colormanager_wrap_borrowed(native_manager: *mut c_void) -\u003e OakNodeColorManager;\n\t/// `oaknode_colormanager_initialize`.\n\tpub fn oaknode_colormanager_initialize(manager: OakNodeColorManager) -\u003e c_int;\n\t/// `oaknode_colormanager_set_up_default_config`.\n\tpub fn oaknode_colormanager_set_up_default_config() -\u003e c_int;\n\n\t// --- serializer.h ---\n\t/// `oaknode_serializer_initialize`.\n\tpub fn oaknode_serializer_initialize() -\u003e c_int;\n\t/// `oaknode_serializer_shutdown`.\n\tpub fn oaknode_serializer_shutdown();\n\t/// `oaknode_serializer_savedata_create`.\n\tpub fn oaknode_serializer_savedata_create(load_type: c_int, project: OakNodeProject) -\u003e OakNodeSerializerSaveData;\n\t/// `oaknode_serializer_savedata_free`.\n\tpub fn oaknode_serializer_savedata_free(save_data: *mut OakNodeSerializerSaveData);\n\t/// `oaknode_serializer_savedata_set_nodes`.\n\tpub fn oaknode_serializer_savedata_set_nodes(save_data: OakNodeSerializerSaveData, nodes: *const OakNodeNode, count: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_savedata_set_property`.\n\tpub fn oaknode_serializer_savedata_set_property(save_data: OakNodeSerializerSaveData, node: OakNodeNode, key: *const c_char, value: *const c_char) -\u003e c_int;\n\t/// `oaknode_serializer_save_to_xml`.\n\tpub fn oaknode_serializer_save_to_xml(save_data: OakNodeSerializerSaveData, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_load_from_xml`.\n\tpub fn oaknode_serializer_load_from_xml(project: OakNodeProject, xml: *const c_char, load_type: c_int, out_result: *mut c_int, out_load_data: *mut OakNodeSerializerLoadData, details_buf: *mut c_char, details_buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_loaddata_free`.\n\tpub fn oaknode_serializer_loaddata_free(load_data: *mut OakNodeSerializerLoadData);\n\t/// `oaknode_serializer_loaddata_node_count`.\n\tpub fn oaknode_serializer_loaddata_node_count(load_data: OakNodeSerializerLoadData) -\u003e c_int;\n\t/// `oaknode_serializer_loaddata_node_at`.\n\tpub fn oaknode_serializer_loaddata_node_at(load_data: OakNodeSerializerLoadData, index: c_int) -\u003e OakNodeNode;\n\t/// `oaknode_serializer_loaddata_get_property`.\n\tpub fn oaknode_serializer_loaddata_get_property(load_data: OakNodeSerializerLoadData, node: OakNodeNode, key: *const c_char, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_loaddata_connection_count`.\n\tpub fn oaknode_serializer_loaddata_connection_count(load_data: OakNodeSerializerLoadData) -\u003e c_int;\n\t/// `oaknode_serializer_loaddata_connection_at`.\n\tpub fn oaknode_serializer_loaddata_connection_at(load_data: OakNodeSerializerLoadData, index: c_int, out_output_node: *mut OakNodeNode, out_input_node: *mut OakNodeNode, input_id_buf: *mut c_char, input_id_buf_size: c_int, out_element: *mut c_int) -\u003e c_int;\n\t/// `oaknode_serializer_save_to_file`.\n\tpub fn oaknode_serializer_save_to_file(project: OakNodeProject, filename: *const c_char, use_compression: c_int, out_code: *mut c_int, details: *mut c_char, details_size: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_load_from_file`.\n\tpub fn oaknode_serializer_load_from_file(project: OakNodeProject, filename: *const c_char, out_code: *mut c_int, details: *mut c_char, details_size: c_int) -\u003e c_int;\n}\n","traces":[{"line":90,"address":[],"length":0,"stats":{"Line":86}},{"line":91,"address":[],"length":0,"stats":{"Line":258}},{"line":92,"address":[],"length":0,"stats":{"Line":172}},{"line":93,"address":[],"length":0,"stats":{"Line":86}}],"covered":4,"coverable":4},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","render.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oakrender C ABI imports. The task module reaches the render side through\n//! `include/render/cancelatom.h` (task cancellation), `include/render/ticket.h`\n//! (frame/audio render tickets), `include/render/copier.h` (export project\n//! copy) and `include/render/color.h` (color processor). Signatures mirror\n//! the headers verbatim.\n\nuse std::ffi::{c_char, c_int, c_void};\n\nuse crate::bridge::codec::OakFrame;\nuse crate::bridge::common::{OakAudioParams, OakColorTransform, OakVideoParams};\nuse crate::bridge::node::{OakNodeColorManager, OakNodeNode, OakNodeProject};\nuse crate::handle::CHandle;\n\n/// Mirror of `OakCancelAtom` (`include/render/cancelatom.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakCancelAtom {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\nimpl OakCancelAtom {\n\t/// The empty (null) atom.\n\tpub fn null() -\u003e Self {\n\t\tOakCancelAtom {\n\t\t\tctx: std::ptr::null_mut(),\n\t\t\taddref: None,\n\t\t\trelease: None,\n\t\t\tabi_version: 0,\n\t\t}\n\t}\n\n\t/// Whether the atom is empty (`ctx == NULL`).\n\tpub fn is_null(\u0026self) -\u003e bool {\n\t\tself.ctx.is_null()\n\t}\n\n\t/// Adopt the fields of a generic `CHandle` (layout-identical) — the task\n\t/// module stores the atom as a `CHandle` for its public API.\n\tpub fn from_chandle(h: CHandle) -\u003e Self {\n\t\tOakCancelAtom {\n\t\t\tctx: h.ctx,\n\t\t\taddref: h.addref,\n\t\t\trelease: h.release,\n\t\t\tabi_version: h.abi_version,\n\t\t}\n\t}\n\n\t/// Convert back to a generic `CHandle` (layout-identical).\n\tpub fn to_chandle(\u0026self) -\u003e CHandle {\n\t\tCHandle {\n\t\t\tctx: self.ctx,\n\t\t\taddref: self.addref,\n\t\t\trelease: self.release,\n\t\t\tabi_version: self.abi_version,\n\t\t}\n\t}\n}\n\n/// Mirror of `OakRenderTicket` (`include/render/ticket.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakRenderTicket {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\n/// Mirror of `OakRenderCache` (`include/render/cache.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakRenderCache {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\nimpl OakRenderCache {\n\t/// The empty (null) cache handle.\n\tpub fn null() -\u003e Self {\n\t\tOakRenderCache {\n\t\t\tctx: std::ptr::null_mut(),\n\t\t\taddref: None,\n\t\t\trelease: None,\n\t\t\tabi_version: 0,\n\t\t}\n\t}\n\n\t/// Convert to the layout-identical generic `CHandle`.\n\tpub fn to_chandle(\u0026self) -\u003e CHandle {\n\t\tCHandle {\n\t\t\tctx: self.ctx,\n\t\t\taddref: self.addref,\n\t\t\trelease: self.release,\n\t\t\tabi_version: self.abi_version,\n\t\t}\n\t}\n\n\t/// Adopt the fields of a generic `CHandle` (layout-identical).\n\tpub fn from_chandle(h: CHandle) -\u003e Self {\n\t\tOakRenderCache {\n\t\t\tctx: h.ctx,\n\t\t\taddref: h.addref,\n\t\t\trelease: h.release,\n\t\t\tabi_version: h.abi_version,\n\t\t}\n\t}\n}\n\n/// Mirror of `OakRenderProjectCopier` (`include/render/copier.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakRenderProjectCopier {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\n/// Mirror of `OakColorProcessor` (`include/render/color.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakColorProcessor {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\nimpl OakColorProcessor {\n\t/// Convert to the layout-identical generic `CHandle`.\n\tpub fn to_chandle(\u0026self) -\u003e CHandle {\n\t\tCHandle {\n\t\t\tctx: self.ctx,\n\t\t\taddref: self.addref,\n\t\t\trelease: self.release,\n\t\t\tabi_version: self.abi_version,\n\t\t}\n\t}\n\n\t/// Adopt the fields of a generic `CHandle` (layout-identical).\n\tpub fn from_chandle(h: CHandle) -\u003e Self {\n\t\tOakColorProcessor {\n\t\t\tctx: h.ctx,\n\t\t\taddref: h.addref,\n\t\t\trelease: h.release,\n\t\t\tabi_version: h.abi_version,\n\t\t}\n\t}\n}\n\n/// Mirror of `oakrender_ticket_finished_fn` (`include/render/ticket.h`).\n///\n/// Two arguments — `(ticket, userdata)` — mirroring the header verbatim.\n/// The ticket is a borrowed copy of the submitter's handle (the submitter\n/// keeps ownership and releases it); cancelled tickets fire with a NULL\n/// result observed through `oakrender_ticket_get_frame`.\npub type OakRenderTicketFinishedFn = unsafe extern \"C\" fn(ticket: OakRenderTicket, userdata: *mut c_void);\n\n/// Mirror of `oakrender_video_ticket_params` (`include/render/ticket.h`).\n#[repr(C)]\npub struct OakRenderVideoTicketParams {\n\t/// Connected texture output node (borrowed).\n\tpub output_node: OakNodeNode,\n\t/// Video params by value (oakcommon handle).\n\tpub video_params: OakVideoParams,\n\t/// Borrowed oakcore audio params, may be null ctx.\n\tpub audio_params: *const OakAudioParams,\n\t/// Frame timestamp numerator (seconds rational).\n\tpub time_num: i64,\n\t/// Frame timestamp denominator.\n\tpub time_den: i64,\n\t/// Borrowed color manager; empty ctx = NULL.\n\tpub color_manager: OakNodeColorManager,\n\t/// `olive::RenderMode::Mode` as int.\n\tpub mode: c_int,\n\t/// Forced output width (0 = off).\n\tpub force_width: c_int,\n\t/// Forced output height (0 = off).\n\tpub force_height: c_int,\n\t/// Forced color matrix (used when `has_force_matrix` != 0).\n\tpub force_matrix: [f64; 16],\n\t/// Whether `force_matrix` is in effect.\n\tpub has_force_matrix: c_int,\n\t/// Forced pixel format (`PixelFormat` as int, -1 = off).\n\tpub force_format: c_int,\n\t/// Forced channel count (0 = off).\n\tpub force_channel_count: c_int,\n\t/// Forced color output (borrowed; empty ctx = none).\n\tpub force_color_output: OakColorProcessor,\n\t/// Forced color transform by value (empty ctx = default).\n\tpub force_color_transform: OakColorTransform,\n\t/// Borrowed frame cache; empty ctx = none.\n\tpub cache: OakRenderCache,\n}\n\nextern \"C\" {\n\t// --- cancelatom.h ---\n\t/// `oakrender_cancelatom_init`.\n\tpub fn oakrender_cancelatom_init() -\u003e OakCancelAtom;\n\t/// `oakrender_cancelatom_free`.\n\tpub fn oakrender_cancelatom_free(atom: *mut OakCancelAtom);\n\t/// `oakrender_cancelatom_cancel`.\n\tpub fn oakrender_cancelatom_cancel(atom: OakCancelAtom) -\u003e c_int;\n\t/// `oakrender_cancelatom_is_cancelled`.\n\tpub fn oakrender_cancelatom_is_cancelled(atom: OakCancelAtom, cancelled: *mut c_int) -\u003e c_int;\n\t/// `oakrender_cancelatom_heard_cancel`.\n\tpub fn oakrender_cancelatom_heard_cancel(atom: OakCancelAtom, heard: *mut c_int) -\u003e c_int;\n\n\t// --- ticket.h ---\n\t/// `oakrender_ticket_render_frame`.\n\tpub fn oakrender_ticket_render_frame(\n\t\tparams: *const OakRenderVideoTicketParams,\n\t\tcb: Option\u003cOakRenderTicketFinishedFn\u003e,\n\t\tuserdata: *mut c_void,\n\t) -\u003e OakRenderTicket;\n\t/// `oakrender_ticket_render_audio`.\n\tpub fn oakrender_ticket_render_audio(\n\t\toutput_node: OakNodeNode,\n\t\tin_num: i64,\n\t\tin_den: i64,\n\t\tout_num: i64,\n\t\tout_den: i64,\n\t\tparams: *const OakAudioParams,\n\t\tmode: c_int,\n\t\tcb: Option\u003cOakRenderTicketFinishedFn\u003e,\n\t\tuserdata: *mut c_void,\n\t) -\u003e OakRenderTicket;\n\t/// `oakrender_ticket_is_finished`.\n\tpub fn oakrender_ticket_is_finished(ticket: OakRenderTicket) -\u003e c_int;\n\t/// `oakrender_ticket_wait`.\n\tpub fn oakrender_ticket_wait(ticket: OakRenderTicket) -\u003e c_int;\n\t/// `oakrender_ticket_cancel`.\n\tpub fn oakrender_ticket_cancel(ticket: OakRenderTicket) -\u003e c_int;\n\t/// `oakrender_ticket_get_type`.\n\tpub fn oakrender_ticket_get_type(ticket: OakRenderTicket) -\u003e c_int;\n\t/// `oakrender_ticket_get_frame`.\n\tpub fn oakrender_ticket_get_frame(ticket: OakRenderTicket, out: *mut OakFrame) -\u003e c_int;\n\t/// `oakrender_ticket_get_time`.\n\tpub fn oakrender_ticket_get_time(ticket: OakRenderTicket, out_num: *mut i64, out_den: *mut i64) -\u003e c_int;\n\t/// `oakrender_ticket_get_range`.\n\tpub fn oakrender_ticket_get_range(\n\t\tticket: OakRenderTicket,\n\t\tin_num: *mut i64,\n\t\tin_den: *mut i64,\n\t\tout_num: *mut i64,\n\t\tout_den: *mut i64,\n\t) -\u003e c_int;\n\t/// `oakrender_ticket_get_samples`.\n\tpub fn oakrender_ticket_get_samples(ticket: OakRenderTicket, out: *mut *mut std::ffi::c_void) -\u003e c_int;\n\t/// `oakrender_ticket_free`.\n\tpub fn oakrender_ticket_free(ticket: *mut OakRenderTicket);\n\n\t// --- copier.h ---\n\t/// `oakrender_project_copier_create`.\n\tpub fn oakrender_project_copier_create() -\u003e OakRenderProjectCopier;\n\t/// `oakrender_project_copier_free`.\n\tpub fn oakrender_project_copier_free(copier: *mut OakRenderProjectCopier);\n\t/// `oakrender_project_copier_set_project`.\n\tpub fn oakrender_project_copier_set_project(\n\t\tcopier: OakRenderProjectCopier,\n\t\tproject: OakNodeProject,\n\t) -\u003e c_int;\n\t/// `oakrender_project_copier_get_copy`.\n\tpub fn oakrender_project_copier_get_copy(\n\t\tcopier: OakRenderProjectCopier,\n\t\toriginal: OakNodeNode,\n\t) -\u003e OakNodeNode;\n\t/// `oakrender_project_copier_get_copied_project`.\n\tpub fn oakrender_project_copier_get_copied_project(\n\t\tcopier: OakRenderProjectCopier,\n\t) -\u003e OakNodeProject;\n\n\t// --- color.h ---\n\t/// `oakrender_color_processor_create`.\n\tpub fn oakrender_color_processor_create(\n\t\tsrc_space: *const c_char,\n\t\tdst_space: *const c_char,\n\t\tdisplay: *const c_char,\n\t\tview: *const c_char,\n\t\tlook: *const c_char,\n\t) -\u003e OakColorProcessor;\n\t/// `oakrender_color_processor_free`.\n\tpub fn oakrender_color_processor_free(processor: *mut OakColorProcessor);\n\t/// `oakrender_color_processor_is_valid`.\n\tpub fn oakrender_color_processor_is_valid(processor: OakColorProcessor) -\u003e c_int;\n\n\t// --- renderer.h ---\n\t/// `oakrender_codec_frame_free` — release a frame handed out by a\n\t/// render ticket.\n\tpub fn oakrender_codec_frame_free(frame: *mut crate::bridge::codec::OakFrame);\n\n\t// --- manager.h ---\n\t/// `oakrender_manager_set_aggressive_gc`.\n\tpub fn oakrender_manager_set_aggressive_gc(enabled: c_int) -\u003e c_int;\n\n\t// --- cache.h ---\n\t/// `oakrender_cache_get_invalidated_ranges` — two-stage range query on\n\t/// a frame cache; returns the number of ranges (or the required flat\n\t/// array size).\n\tpub fn oakrender_cache_get_invalidated_ranges(\n\t\tcache: OakRenderCache,\n\t\tin_num: i64,\n\t\tin_den: i64,\n\t\tout_num: i64,\n\t\tout_den: i64,\n\t\tflat: *mut i64,\n\t\tflat_size: c_int,\n\t) -\u003e c_int;\n\t/// `oakrender_cache_free`.\n\tpub fn oakrender_cache_free(cache: *mut OakRenderCache);\n}\n","traces":[{"line":46,"address":[],"length":0,"stats":{"Line":3}},{"line":48,"address":[],"length":0,"stats":{"Line":6}},{"line":56,"address":[],"length":0,"stats":{"Line":0}},{"line":57,"address":[],"length":0,"stats":{"Line":0}},{"line":62,"address":[],"length":0,"stats":{"Line":230}},{"line":64,"address":[],"length":0,"stats":{"Line":460}},{"line":65,"address":[],"length":0,"stats":{"Line":460}},{"line":66,"address":[],"length":0,"stats":{"Line":230}},{"line":67,"address":[],"length":0,"stats":{"Line":230}},{"line":72,"address":[],"length":0,"stats":{"Line":103}},{"line":74,"address":[],"length":0,"stats":{"Line":206}},{"line":75,"address":[],"length":0,"stats":{"Line":206}},{"line":76,"address":[],"length":0,"stats":{"Line":103}},{"line":77,"address":[],"length":0,"stats":{"Line":103}},{"line":112,"address":[],"length":0,"stats":{"Line":1}},{"line":114,"address":[],"length":0,"stats":{"Line":2}},{"line":122,"address":[],"length":0,"stats":{"Line":1}},{"line":124,"address":[],"length":0,"stats":{"Line":2}},{"line":125,"address":[],"length":0,"stats":{"Line":2}},{"line":126,"address":[],"length":0,"stats":{"Line":1}},{"line":127,"address":[],"length":0,"stats":{"Line":1}},{"line":132,"address":[],"length":0,"stats":{"Line":83}},{"line":134,"address":[],"length":0,"stats":{"Line":166}},{"line":135,"address":[],"length":0,"stats":{"Line":166}},{"line":136,"address":[],"length":0,"stats":{"Line":83}},{"line":137,"address":[],"length":0,"stats":{"Line":83}},{"line":172,"address":[],"length":0,"stats":{"Line":0}},{"line":174,"address":[],"length":0,"stats":{"Line":0}},{"line":175,"address":[],"length":0,"stats":{"Line":0}},{"line":176,"address":[],"length":0,"stats":{"Line":0}},{"line":177,"address":[],"length":0,"stats":{"Line":0}},{"line":182,"address":[],"length":0,"stats":{"Line":83}},{"line":184,"address":[],"length":0,"stats":{"Line":166}},{"line":185,"address":[],"length":0,"stats":{"Line":166}},{"line":186,"address":[],"length":0,"stats":{"Line":83}},{"line":187,"address":[],"length":0,"stats":{"Line":83}}],"covered":29,"coverable":36},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","timeline.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oaktimeline C ABI imports. The OTIO load task builds tracks through the\n//! timeline edit factories (`include/timeline/edit.h`) instead of the raw\n//! track-list primitives, matching `src/task/src/project/loadotio/loadotio.cpp`.\n//! Signatures mirror the header verbatim.\n\nuse crate::bridge::node::OakNodeTrackList;\nuse crate::bridge::undo::OakUndoCommand;\n\nextern \"C\" {\n\t/// `oaktimeline_add_track_command` (`include/timeline/edit.h`) —\n\t/// olive::TimelineAddTrackCommand.\n\tpub fn oaktimeline_add_track_command(list: OakNodeTrackList) -\u003e OakUndoCommand;\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","undo.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oakundo C ABI imports. Import/load tasks build undo commands through the\n//! C ABI vtable (`oakundo_command_init` with Rust closures as userdata) —\n//! no C++ UndoCommand subclassing exists on this side. Mirrors\n//! `include/undo/undocommand.h` verbatim.\n\nuse std::ffi::{c_int, c_void};\n\nuse crate::handle::CHandle;\n\n/// `OakUndoCommand` (`include/undo/undocommand.h`).\npub type OakUndoCommand = CHandle;\n\n/// Mirror of `OakUndoCommandVtable` (`include/undo/undocommand.h`).\n#[repr(C)]\npub struct OakUndoCommandVtable {\n\t/// Redo callback; may be NULL.\n\tpub redo: Option\u003cunsafe extern \"C\" fn(userdata: *mut c_void)\u003e,\n\t/// Undo callback; may be NULL.\n\tpub undo: Option\u003cunsafe extern \"C\" fn(userdata: *mut c_void)\u003e,\n\t/// Free callback; may be NULL.\n\tpub free_fn: Option\u003cunsafe extern \"C\" fn(userdata: *mut c_void)\u003e,\n}\n\nextern \"C\" {\n\t/// `oakundo_command_init` (vtable command).\n\tpub fn oakundo_command_init(vtable: *const OakUndoCommandVtable, userdata: *mut c_void) -\u003e OakUndoCommand;\n\t/// `oakundo_command_init_multi`.\n\tpub fn oakundo_command_init_multi() -\u003e OakUndoCommand;\n\t/// `oakundo_command_multi_add_child`.\n\tpub fn oakundo_command_multi_add_child(multi: OakUndoCommand, child: OakUndoCommand) -\u003e c_int;\n\t/// `oakundo_command_multi_child_count`.\n\tpub fn oakundo_command_multi_child_count(multi: OakUndoCommand, out_count: *mut c_int) -\u003e c_int;\n\t/// `oakundo_command_multi_child`.\n\tpub fn oakundo_command_multi_child(multi: OakUndoCommand, index: c_int, out_child: *mut OakUndoCommand) -\u003e c_int;\n\t/// `oakundo_command_redo_now`.\n\tpub fn oakundo_command_redo_now(command: OakUndoCommand) -\u003e c_int;\n\t/// `oakundo_command_undo_now`.\n\tpub fn oakundo_command_undo_now(command: OakUndoCommand) -\u003e c_int;\n\t/// `oakundo_command_free`.\n\tpub fn oakundo_command_free(command: *mut OakUndoCommand);\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","codecbridge.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! Codec task submitter registration, mirroring\n//! `src/task/src/codecbridge.h`.\n//!\n//! Wires oakcodec's task-submit callback (`oakcodec_set_task_submit_cb`) so\n//! conform/proxy requests from the codec side land back in the task module.\n//! This is a two-module coupling; the actual callback signatures live in\n//! `crate::bridge::codec` mirroring `include/codec/task.h` verbatim.\n//!\n//! CPP-PARITY: src/task/src/codecbridge.h\n\nuse std::ffi::{c_char, c_int, c_void};\n\nuse crate::bridge;\nuse crate::conform::ConformTask;\nuse crate::error::{Error, Result};\nuse crate::proxy::{ProxyParams, ProxyTask};\nuse crate::task::Task;\n\n/// Convert an oakcodec proxy-params POD into the Rust [`ProxyParams`].\nfn proxy_params_from_codec(params: \u0026bridge::codec::OakCodecProxyParams) -\u003e ProxyParams {\n\tProxyParams {\n\t\twidth: params.width,\n\t\theight: params.height,\n\t\tdivider: params.divider,\n\t\tversion: params.version,\n\t\tcrf: params.crf,\n\t\tinclude_audio: params.include_audio != 0,\n\t\textension: unsafe { cstr_buf_to_string(\u0026params.extension) },\n\t\tpreset: unsafe { cstr_buf_to_string(\u0026params.preset) },\n\t}\n}\n\n/// Read a NUL-terminated char array into a String (lossy).\nunsafe fn cstr_buf_to_string(buf: \u0026[c_char]) -\u003e String {\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tlet bytes = unsafe { std::slice::from_raw_parts(buf.as_ptr() as *const u8, len) };\n\tString::from_utf8_lossy(bytes).into_owned()\n}\n\n/// The installed submit callback, mirroring `submit_codec_task` in\n/// codecbridge.cpp (interim contract: submission is synchronous).\n///\n/// # Safety\n/// `req` must be a valid `OakCodecTaskRequest` or null.\nunsafe extern \"C\" fn submit_codec_task(req: *const bridge::codec::OakCodecTaskRequest, _userdata: *mut c_void) -\u003e c_int {\n\tif req.is_null() {\n\t\treturn bridge::codec::OAKCODEC_E_INVALID;\n\t}\n\tlet request = unsafe { \u0026*req };\n\n\t// Build the concrete task on an outer base so the behavior can be\n\t// driven by `start()`; both share the cancellation atom.\n\tmatch request.kind {\n\t\tbridge::codec::OAKCODEC_TASK_CONFORM =\u003e {\n\t\t\tlet task = ConformTask::new(request);\n\t\t\tlet atom = task.base.get_cancel_atom();\n\t\t\tlet title = task.base.title().to_string();\n\t\t\tlet mut outer = Task::new(\u0026title, atom);\n\t\t\touter.set_behavior(Box::new(task));\n\t\t\tmatch outer.start() {\n\t\t\t\tOk(()) =\u003e 0,\n\t\t\t\tErr(_) =\u003e bridge::codec::OAKCODEC_E_FAILED,\n\t\t\t}\n\t\t}\n\t\tbridge::codec::OAKCODEC_TASK_PROXY =\u003e {\n\t\t\tlet mut codec_params = bridge::codec::OakCodecProxyParams {\n\t\t\t\twidth: 0,\n\t\t\t\theight: 0,\n\t\t\t\tdivider: 0,\n\t\t\t\tversion: 0,\n\t\t\t\tcrf: 0,\n\t\t\t\tinclude_audio: 0,\n\t\t\t\textension: [0; 32],\n\t\t\t\tpreset: [0; 32],\n\t\t\t};\n\t\t\tunsafe {\n\t\t\t\tbridge::codec::oakcodec_proxy_params_default(\u0026mut codec_params);\n\t\t\t}\n\t\t\tlet params = proxy_params_from_codec(\u0026codec_params);\n\t\t\tlet task = ProxyTask::new(request, params);\n\t\t\tlet atom = task.base.get_cancel_atom();\n\t\t\tlet title = task.base.title().to_string();\n\t\t\tlet mut outer = Task::new(\u0026title, atom);\n\t\t\touter.set_behavior(Box::new(task));\n\t\t\tmatch outer.start() {\n\t\t\t\tOk(()) =\u003e 0,\n\t\t\t\tErr(_) =\u003e bridge::codec::OAKCODEC_E_FAILED,\n\t\t\t}\n\t\t}\n\t\t_ =\u003e bridge::codec::OAKCODEC_E_INVALID,\n\t}\n}\n\n/// Install the task-module submitter as oakcodec's callback. Returns\n/// `Err(Error::State)` if already registered.\npub fn register_codec_task_submitter() -\u003e Result\u003c()\u003e {\n\tif is_codec_task_submitter_registered() {\n\t\treturn Err(Error::State);\n\t}\n\tunsafe {\n\t\tbridge::codec::oakcodec_set_task_submit_cb(Some(submit_codec_task), std::ptr::null_mut());\n\t}\n\tOk(())\n}\n\n/// Remove the task-module submitter from oakcodec. Idempotent.\npub fn unregister_codec_task_submitter() -\u003e Result\u003c()\u003e {\n\tunsafe {\n\t\tbridge::codec::oakcodec_set_task_submit_cb(None, std::ptr::null_mut());\n\t}\n\tOk(())\n}\n\n/// Whether a submitter is currently installed (queries oakcodec).\npub fn is_codec_task_submitter_registered() -\u003e bool {\n\tunsafe { bridge::codec::oakcodec_task_submit_is_registered() != 0 }\n}\n","traces":[{"line":36,"address":[],"length":0,"stats":{"Line":7}},{"line":38,"address":[],"length":0,"stats":{"Line":14}},{"line":39,"address":[],"length":0,"stats":{"Line":14}},{"line":40,"address":[],"length":0,"stats":{"Line":14}},{"line":41,"address":[],"length":0,"stats":{"Line":14}},{"line":42,"address":[],"length":0,"stats":{"Line":14}},{"line":43,"address":[],"length":0,"stats":{"Line":14}},{"line":44,"address":[],"length":0,"stats":{"Line":21}},{"line":45,"address":[],"length":0,"stats":{"Line":7}},{"line":50,"address":[],"length":0,"stats":{"Line":14}},{"line":51,"address":[],"length":0,"stats":{"Line":175}},{"line":52,"address":[],"length":0,"stats":{"Line":56}},{"line":53,"address":[],"length":0,"stats":{"Line":42}},{"line":61,"address":[],"length":0,"stats":{"Line":16}},{"line":62,"address":[],"length":0,"stats":{"Line":32}},{"line":63,"address":[],"length":0,"stats":{"Line":1}},{"line":65,"address":[],"length":0,"stats":{"Line":30}},{"line":69,"address":[],"length":0,"stats":{"Line":15}},{"line":71,"address":[],"length":0,"stats":{"Line":21}},{"line":72,"address":[],"length":0,"stats":{"Line":21}},{"line":73,"address":[],"length":0,"stats":{"Line":21}},{"line":74,"address":[],"length":0,"stats":{"Line":28}},{"line":75,"address":[],"length":0,"stats":{"Line":21}},{"line":76,"address":[],"length":0,"stats":{"Line":7}},{"line":77,"address":[],"length":0,"stats":{"Line":2}},{"line":78,"address":[],"length":0,"stats":{"Line":5}},{"line":89,"address":[],"length":0,"stats":{"Line":7}},{"line":90,"address":[],"length":0,"stats":{"Line":7}},{"line":93,"address":[],"length":0,"stats":{"Line":7}},{"line":95,"address":[],"length":0,"stats":{"Line":21}},{"line":96,"address":[],"length":0,"stats":{"Line":28}},{"line":97,"address":[],"length":0,"stats":{"Line":21}},{"line":98,"address":[],"length":0,"stats":{"Line":21}},{"line":99,"address":[],"length":0,"stats":{"Line":28}},{"line":100,"address":[],"length":0,"stats":{"Line":21}},{"line":101,"address":[],"length":0,"stats":{"Line":7}},{"line":102,"address":[],"length":0,"stats":{"Line":2}},{"line":103,"address":[],"length":0,"stats":{"Line":5}},{"line":106,"address":[],"length":0,"stats":{"Line":1}},{"line":112,"address":[],"length":0,"stats":{"Line":22}},{"line":113,"address":[],"length":0,"stats":{"Line":22}},{"line":114,"address":[],"length":0,"stats":{"Line":3}},{"line":117,"address":[],"length":0,"stats":{"Line":38}},{"line":119,"address":[],"length":0,"stats":{"Line":19}},{"line":123,"address":[],"length":0,"stats":{"Line":34}},{"line":125,"address":[],"length":0,"stats":{"Line":68}},{"line":127,"address":[],"length":0,"stats":{"Line":34}},{"line":131,"address":[],"length":0,"stats":{"Line":22}},{"line":132,"address":[],"length":0,"stats":{"Line":22}}],"covered":49,"coverable":49},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","conform.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ConformTask`, mirroring `src/task/src/conform/conform.h`.\n//!\n//! Transcodes an audio stream to a PCM cache file (oakcodec kind\n//! `OAKCODEC_TASK_CONFORM`) and reports progress as it decodes.\n//!\n//! CPP-PARITY: src/task/src/conform/conform.h\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::task::{Task, TaskBehavior};\n\n/// A conform task: copies/channels of one audio stream into per-channel\n/// working PCM cache files, then renames them to the final names.\npub struct ConformTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Absolute input media filename.\n\tpub input_filename: String,\n\t/// Final destination path (replaces the source path extension).\n\tpub output_filename: String,\n\t/// Audio stream index inside the source media.\n\tpub stream_index: i32,\n\t/// Target sample rate (Hz).\n\tpub sample_rate: i32,\n\t/// Target channel layout mask (ffmpeg-style).\n\tpub channel_layout: u64,\n\t/// Target sample format (enum as int; `oakcore_rs::SampleFormat`).\n\tpub sample_format: i32,\n\t/// Resolved final per-channel filenames (from [`ConformTask::derive_filenames`]).\n\tfinal_names: Vec\u003cString\u003e,\n\t/// Resolved working per-channel filenames.\n\tworking_names: Vec\u003cString\u003e,\n}\n\nimpl ConformTask {\n\t/// Build a conform task from an oakcodec request, mirroring the C++\n\t/// constructor.\n\tpub fn new(request: \u0026bridge::codec::OakCodecTaskRequest) -\u003e ConformTask {\n\t\tlet input = unsafe { crate::ffi::taskhandle::cstr_to_string(request.input_filename) };\n\t\tlet output = unsafe { crate::ffi::taskhandle::cstr_to_string(request.output_filename) };\n\t\tlet title = format!(\"Conforming Audio {}:{}\", input, request.stream_index);\n\t\tConformTask {\n\t\t\tbase: Task::new(\u0026title, CHandle::null()),\n\t\t\tinput_filename: input,\n\t\t\toutput_filename: output,\n\t\t\tstream_index: request.stream_index,\n\t\t\tsample_rate: request.sample_rate,\n\t\t\tchannel_layout: request.channel_layout,\n\t\t\tsample_format: request.sample_format,\n\t\t\tfinal_names: Vec::new(),\n\t\t\tworking_names: Vec::new(),\n\t\t}\n\t}\n\n\t/// Derive the final and working PCM filenames for the given first-channel\n\t/// final filename and channel count.\n\t///\n\t/// C++ contract: the first-channel final name must end in `.0.pcm`; the\n\t/// final name for channel `i` replaces the trailing index, and the\n\t/// working name appends `.working`. See `derive_filenames` in\n\t/// conform.cpp — this is a parity/golden candidate (see\n\t/// tests/parity_test.rs).\n\t///\n\t/// CPP-PARITY: src/task/src/conform/conform.cpp (derive_filenames)\n\tpub fn derive_filenames(first_channel_final: \u0026str, channel_count: usize) -\u003e Result\u003c(Vec\u003cString\u003e, Vec\u003cString\u003e)\u003e {\n\t\tconst SUFFIX: \u0026str = \".0.pcm\";\n\n\t\tif channel_count \u003c 1 || first_channel_final.len() \u003c= SUFFIX.len()\n\t\t\t|| !first_channel_final.ends_with(SUFFIX)\n\t\t{\n\t\t\treturn Err(Error::Failed(\"Invalid conform output filename\".to_string()));\n\t\t}\n\n\t\tlet base = \u0026first_channel_final[..first_channel_final.len() - SUFFIX.len()];\n\t\tlet mut final_names = Vec::with_capacity(channel_count);\n\t\tlet mut working_names = Vec::with_capacity(channel_count);\n\t\tfor i in 0..channel_count {\n\t\t\tlet final_name = format!(\"{base}.{i}.pcm\");\n\t\t\tfinal_names.push(final_name.clone());\n\t\t\tworking_names.push(format!(\"{final_name}.working\"));\n\t\t}\n\t\tOk((final_names, working_names))\n\t}\n}\n\nimpl TaskBehavior for ConformTask {\n\t/// Run the conform via the oakcodec decoder (`bridge::codec`), emitting\n\t/// progress as audio is decoded and written to the working files, then\n\t/// rename working → final.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet channel_count = self.channel_layout.count_ones() as usize;\n\t\tlet (final_names, working_names) =\n\t\t\tSelf::derive_filenames(\u0026self.output_filename, channel_count).map_err(|_| {\n\t\t\t\ttask.set_error(\"Invalid conform output filename\");\n\t\t\t\tError::Failed(\"Invalid conform output filename\".to_string())\n\t\t\t})?;\n\t\tself.final_names = final_names;\n\t\tself.working_names = working_names;\n\n\t\tlet decoder = unsafe { bridge::codec::oakcodec_decoder_init() };\n\t\tif decoder.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create decoder\");\n\t\t\treturn Err(Error::Failed(\"Failed to create decoder\".to_string()));\n\t\t}\n\t\tlet mut decoder = decoder;\n\n\t\tlet result = (|| {\n\t\t\tlet open_result = unsafe {\n\t\t\t\tbridge::codec::oakcodec_decoder_open(decoder, cstr(\u0026self.input_filename), self.stream_index)\n\t\t\t};\n\t\t\tif open_result != 0 {\n\t\t\t\tlet err = decoder_error(decoder);\n\t\t\t\ttask.set_error(\u0026format!(\"Failed to open decoder for audio conform: {err}\"));\n\t\t\t\treturn false;\n\t\t\t}\n\n\t\t\tlet working_ptrs: Vec\u003c*const std::ffi::c_char\u003e =\n\t\t\t\tself.working_names.iter().map(|n| cstr(n)).collect();\n\t\t\tlet conform_result = unsafe {\n\t\t\t\tbridge::codec::oakcodec_decoder_conform_audio(\n\t\t\t\t\tdecoder,\n\t\t\t\t\tworking_ptrs.as_ptr(),\n\t\t\t\t\tworking_ptrs.len() as i32,\n\t\t\t\t\tself.sample_rate,\n\t\t\t\t\tself.channel_layout,\n\t\t\t\t\tself.sample_format,\n\t\t\t\t\tbridge::render::OakCancelAtom::from_chandle(task.get_cancel_atom()),\n\t\t\t\t)\n\t\t\t};\n\t\t\tunsafe {\n\t\t\t\tbridge::codec::oakcodec_decoder_close(decoder);\n\t\t\t}\n\n\t\t\tif conform_result == 0 {\n\t\t\t\t// Rename each working file into place; a failure aborts the\n\t\t\t\t// rest (mirroring the C++ loop).\n\t\t\t\tfor i in 0..self.working_names.len() {\n\t\t\t\t\tif std::fs::rename(\u0026self.working_names[i], \u0026self.final_names[i]).is_err() {\n\t\t\t\t\t\ttask.set_error(\"Failed to move conformed audio into place\");\n\t\t\t\t\t\treturn false;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\ttrue\n\t\t\t} else {\n\t\t\t\t// Clean up any partial working files.\n\t\t\t\tfor name in \u0026self.working_names {\n\t\t\t\t\tlet _ = std::fs::remove_file(name);\n\t\t\t\t}\n\t\t\t\tif conform_result == bridge::codec::OAKCODEC_E_CANCELLED {\n\t\t\t\t\ttask.set_error(\"Audio conform was cancelled\");\n\t\t\t\t} else {\n\t\t\t\t\ttask.set_error(\"Audio conform failed\");\n\t\t\t\t}\n\t\t\t\tfalse\n\t\t\t}\n\t\t})();\n\n\t\tunsafe {\n\t\t\tbridge::codec::oakcodec_decoder_free(\u0026mut decoder);\n\t\t}\n\n\t\tif result {\n\t\t\tOk(())\n\t\t} else {\n\t\t\tErr(Error::Failed(\"Audio conform failed\".to_string()))\n\t\t}\n\t}\n}\n\n/// Two-stage read of the decoder's last error string.\nfn decoder_error(decoder: CHandle) -\u003e String {\n\tlet mut buf = [0i8; 256];\n\tlet needed = unsafe { bridge::codec::oakcodec_decoder_last_error(decoder, buf.as_mut_ptr(), buf.len() as i32) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tunsafe { String::from_utf8_lossy(std::slice::from_raw_parts(buf.as_ptr() as *const u8, len)).into_owned() 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `CustomCacheTask`, mirroring `src/task/src/customcache/customcachetask.h`.\n//!\n//! A task that delegates its completion to an external cache fill: it does\n//! not do work itself but waits until the cache reports it is done (via\n//! [`CustomCacheTask::finish`]) or is cancelled.\n//!\n//! CPP-PARITY: src/task/src/customcache/customcachetask.h\n\nuse std::sync::{Arc, Condvar, Mutex};\n\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\nuse crate::task::{Task, TaskBehavior};\n\n/// Shared state between the parked task thread, the owning cache\n/// ([`CustomCacheTask::finish`]) and the cancel hook. Mirrors the C++\n/// `mutex_`/`wait_cond_`/`cancelled_through_finish_` trio; the cancel atom\n/// copy lets `finish()` wake the task through the same channel the C++\n/// `cancel()` uses.\npub struct CustomCacheState {\n\t/// Set by `finish()` before the cancellation request.\n\tcancelled_through_finish: Mutex\u003cbool\u003e,\n\t/// Parked-task wakeup.\n\twait: Condvar,\n\t/// Callback invoked when the task is cancelled (not by `finish()`).\n\tcancelled_callback: Mutex\u003cOption\u003cBox\u003cdyn FnMut() + Send\u003e\u003e\u003e,\n\t/// Copy of the task's cancellation atom.\n\tatom: CHandle,\n}\n\nimpl CustomCacheState {\n\t/// Mark the cache fill as complete and wake the parked task.\n\tpub fn finish(\u0026self) {\n\t\t*self.cancelled_through_finish.lock().unwrap() = true;\n\t\tif !self.atom.is_null() {\n\t\t\tlet atom = crate::bridge::render::OakCancelAtom::from_chandle(self.atom);\n\t\t\tunsafe {\n\t\t\t\tcrate::bridge::render::oakrender_cancelatom_cancel(atom);\n\t\t\t}\n\t\t}\n\t\tself.wait.notify_one();\n\t}\n\n\t/// The C++ `cancel_event()` hook: fires the callback unless the task was\n\t/// finished through `finish()`, then wakes the parked task.\n\tpub fn cancel_event(\u0026self) {\n\t\tif !*self.cancelled_through_finish.lock().unwrap() {\n\t\t\tif let Some(cb) = self.cancelled_callback.lock().unwrap().as_mut() {\n\t\t\t\tcb();\n\t\t\t}\n\t\t}\n\t\tself.wait.notify_one();\n\t}\n\n\t/// The full C++ `cancel()`: cancel the atom and run the cancel-event\n\t/// hook. Used by the owning cache to abort a fill.\n\tpub fn cancel(\u0026self) {\n\t\tif !self.atom.is_null() {\n\t\t\tlet atom = crate::bridge::render::OakCancelAtom::from_chandle(self.atom);\n\t\t\tunsafe {\n\t\t\t\tcrate::bridge::render::oakrender_cancelatom_cancel(atom);\n\t\t\t}\n\t\t}\n\t\tself.cancel_event();\n\t}\n\n\t/// Whether the fill was completed through `finish()`.\n\tfn is_finished_through_finish(\u0026self) -\u003e bool {\n\t\t*self.cancelled_through_finish.lock().unwrap()\n\t}\n}\n\n/// A cache-fill task that finishes only when [`CustomCacheTask::finish`] is\n/// called by the owning cache. Uses a `Mutex` + `Condvar` to park the task\n/// thread until completion or cancellation.\npub struct CustomCacheTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// The name of the sequence being cached.\n\tpub sequence_name: String,\n\t/// Shared park/notify state.\n\tstate: Arc\u003cCustomCacheState\u003e,\n}\n\nimpl CustomCacheTask {\n\t/// Create a cache-fill task with the given sequence name. The cancel\n\t/// hook that wakes the parked thread is installed on the base task.\n\tpub fn new(sequence_name: \u0026str) -\u003e CustomCacheTask {\n\t\tlet base = Task::new(\u0026format!(\"Caching custom range for \\\"{sequence_name}\\\"\"), CHandle::null());\n\t\tlet state = Arc::new(CustomCacheState {\n\t\t\tcancelled_through_finish: Mutex::new(false),\n\t\t\twait: Condvar::new(),\n\t\t\tcancelled_callback: Mutex::new(None),\n\t\t\tatom: base.get_cancel_atom(),\n\t\t});\n\t\tlet mut task = CustomCacheTask {\n\t\t\tbase,\n\t\t\tsequence_name: sequence_name.to_string(),\n\t\t\tstate,\n\t\t};\n\t\tlet hook_state = task.state.clone();\n\t\ttask.base.set_cancel_event(Box::new(move || hook_state.cancel_event()));\n\t\ttask\n\t}\n\n\t/// Mark the cache fill as complete, waking the parked task thread.\n\tpub fn finish(\u0026mut self) {\n\t\tself.state.finish();\n\t}\n\n\t/// Install the callback invoked when the task is cancelled.\n\tpub fn set_cancelled_callback(\u0026mut self, cb: Box\u003cdyn FnMut() + Send\u003e) {\n\t\t*self.state.cancelled_callback.lock().unwrap() = Some(cb);\n\t}\n\n\t/// Shared-state accessor for the owning cache (and tests) to call\n\t/// [`CustomCacheTask::finish`] from another thread.\n\tpub fn state(\u0026self) -\u003e Arc\u003cCustomCacheState\u003e {\n\t\tself.state.clone()\n\t}\n}\n\nimpl TaskBehavior for CustomCacheTask {\n\t/// Park until [`CustomCacheTask::finish`] or cancellation; return\n\t/// `Err(Error::Cancelled)` if cancelled while waiting.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Install the cancel hook on the task this behavior actually runs\n\t\t// under (the outer task driven by the manager / C ABI). The\n\t\t// constructor-installed hook on the inner `base` only fires when the\n\t\t// base itself is cancelled; without this the outer `cancel()` would\n\t\t// set the shared atom but never wake the parked thread.\n\t\tlet hook_state = self.state.clone();\n\t\ttask.set_cancel_event(Box::new(move || hook_state.cancel_event()));\n\n\t\tlet mut guard = self.state.cancelled_through_finish.lock().unwrap();\n\t\twhile !task.is_cancelled() {\n\t\t\tguard = self.state.wait.wait(guard).unwrap();\n\t\t}\n\t\tdrop(guard);\n\t\tif self.state.is_finished_through_finish() {\n\t\t\tOk(())\n\t\t} else {\n\t\t\tErr(Error::Cancelled)\n\t\t}\n\t}\n}\n","traces":[{"line":49,"address":[],"length":0,"stats":{"Line":2}},{"line":50,"address":[],"length":0,"stats":{"Line":4}},{"line":51,"address":[],"length":0,"stats":{"Line":2}},{"line":52,"address":[],"length":0,"stats":{"Line":6}},{"line":54,"address":[],"length":0,"stats":{"Line":2}},{"line":57,"address":[],"length":0,"stats":{"Line":4}},{"line":62,"address":[],"length":0,"stats":{"Line":3}},{"line":63,"address":[],"length":0,"stats":{"Line":6}},{"line":64,"address":[],"length":0,"stats":{"Line":8}},{"line":65,"address":[],"length":0,"stats":{"Line":1}},{"line":68,"address":[],"length":0,"stats":{"Line":6}},{"line":73,"address":[],"length":0,"stats":{"Line":3}},{"line":74,"address":[],"length":0,"stats":{"Line":3}},{"line":75,"address":[],"length":0,"stats":{"Line":9}},{"line":77,"address":[],"length":0,"stats":{"Line":3}},{"line":80,"address":[],"length":0,"stats":{"Line":6}},{"line":84,"address":[],"length":0,"stats":{"Line":5}},{"line":85,"address":[],"length":0,"stats":{"Line":10}},{"line":104,"address":[],"length":0,"stats":{"Line":5}},{"line":105,"address":[],"length":0,"stats":{"Line":20}},{"line":106,"address":[],"length":0,"stats":{"Line":15}},{"line":107,"address":[],"length":0,"stats":{"Line":10}},{"line":108,"address":[],"length":0,"stats":{"Line":10}},{"line":109,"address":[],"length":0,"stats":{"Line":15}},{"line":110,"address":[],"length":0,"stats":{"Line":5}},{"line":114,"address":[],"length":0,"stats":{"Line":10}},{"line":117,"address":[],"length":0,"stats":{"Line":15}},{"line":118,"address":[],"length":0,"stats":{"Line":15}},{"line":119,"address":[],"length":0,"stats":{"Line":5}},{"line":123,"address":[],"length":0,"stats":{"Line":0}},{"line":124,"address":[],"length":0,"stats":{"Line":0}},{"line":128,"address":[],"length":0,"stats":{"Line":2}},{"line":129,"address":[],"length":0,"stats":{"Line":6}},{"line":134,"address":[],"length":0,"stats":{"Line":5}},{"line":135,"address":[],"length":0,"stats":{"Line":10}},{"line":142,"address":[],"length":0,"stats":{"Line":5}},{"line":148,"address":[],"length":0,"stats":{"Line":15}},{"line":149,"address":[],"length":0,"stats":{"Line":15}},{"line":151,"address":[],"length":0,"stats":{"Line":20}},{"line":152,"address":[],"length":0,"stats":{"Line":11}},{"line":153,"address":[],"length":0,"stats":{"Line":12}},{"line":155,"address":[],"length":0,"stats":{"Line":10}},{"line":156,"address":[],"length":0,"stats":{"Line":5}},{"line":157,"address":[],"length":0,"stats":{"Line":2}},{"line":159,"address":[],"length":0,"stats":{"Line":3}}],"covered":43,"coverable":45},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","error.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! Error codes, mirroring `include/task/error.h` verbatim; project-wide\n//! -MMCCCC scheme (module registry in include/common/error.h), pass-through\n//! untranslated. Module number for task is **08**; task additionally defines\n//! `OAKTASK_E_CANCELLED` (see include/task/error.h).\n\n/// Success.\npub const OAKTASK_OK: i32 = 0;\n/// Null handle or invalid argument.\npub const OAKTASK_E_INVALID: i32 = -80001;\n/// Call not valid in the current state.\npub const OAKTASK_E_STATE: i32 = -80002;\n/// The underlying operation failed.\npub const OAKTASK_E_FAILED: i32 = -80003;\n/// Index out of range / entry not found.\npub const OAKTASK_E_NOT_FOUND: i32 = -80004;\n/// Allocation failed.\npub const OAKTASK_E_NOMEM: i32 = -80005;\n/// The task was cancelled.\npub const OAKTASK_E_CANCELLED: i32 = -80006;\n\n/// Crate-internal result type; the FFI layer maps it to the codes.\npub type Result\u003cT\u003e = std::result::Result\u003cT, Error\u003e;\n\n/// Crate-internal error.\n#[derive(Debug)]\npub enum Error {\n\t/// Null handle or invalid argument.\n\tInvalid,\n\t/// Wrong state.\n\tState,\n\t/// Operation failed (context string is log-only).\n\tFailed(String),\n\t/// Not found.\n\tNotFound,\n\t/// Out of memory.\n\tNoMem,\n\t/// The operation was cancelled.\n\tCancelled,\n}\n\nimpl Error {\n\t/// Map to the public error code.\n\tpub fn code(\u0026self) -\u003e i32 {\n\t\tmatch self {\n\t\t\tError::Invalid =\u003e OAKTASK_E_INVALID,\n\t\t\tError::State =\u003e OAKTASK_E_STATE,\n\t\t\tError::Failed(_) =\u003e OAKTASK_E_FAILED,\n\t\t\tError::NotFound =\u003e OAKTASK_E_NOT_FOUND,\n\t\t\tError::NoMem =\u003e OAKTASK_E_NOMEM,\n\t\t\tError::Cancelled =\u003e OAKTASK_E_CANCELLED,\n\t\t}\n\t}\n}\n","traces":[{"line":59,"address":[],"length":0,"stats":{"Line":3}},{"line":60,"address":[],"length":0,"stats":{"Line":3}},{"line":61,"address":[],"length":0,"stats":{"Line":0}},{"line":62,"address":[],"length":0,"stats":{"Line":0}},{"line":63,"address":[],"length":0,"stats":{"Line":1}},{"line":64,"address":[],"length":0,"stats":{"Line":0}},{"line":65,"address":[],"length":0,"stats":{"Line":0}},{"line":66,"address":[],"length":0,"stats":{"Line":2}}],"covered":4,"coverable":8},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","export.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ExportTask`, mirroring `src/task/src/export/export.h`.\n//!\n//! Renders the viewer output through [`crate::render::RenderTask`] and writes\n//! it to a file via the oakcodec encoder (`bridge::codec`), mapping each\n//! rendered [`Rational`] frame to an `OakFrame` and each rendered\n//! [`TimeRange`] to audio samples.\n//!\n//! **Simplifications over the C++**: no temporary-file rename dance (the\n//! encoder writes straight to the requested filename), no sidecar subtitle\n//! encoder (subtitles go through the main encoder), and no frame/audio\n//! reordering maps — the [`RenderTask`] loop delivers frames and audio in\n//! timestamp order (its reorder buffer), so the encoder is written directly.\n//!\n//! CPP-PARITY: src/task/src/export/export.h\n\nuse crate::bridge;\nuse crate::bridge::codec::OakCodecEncodingParams;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::render::{ForceParams, RenderTask, RenderTaskBehavior};\nuse crate::task::{Task, TaskBehavior};\nuse oakcore_rs::{Rational, TimeRange};\n\n/// An export task. Owns the encoder and the project copier; the base\n/// [`RenderTask`] does the frame/audio production.\npub struct ExportTask {\n\t/// The render base (itself a task).\n\tpub render: RenderTask,\n\t/// The viewer node (borrowed `OakNodeNode`) being exported.\n\tpub viewer_node: CHandle,\n\t/// The color manager (borrowed `OakNodeColorManager`).\n\tpub color_manager: CHandle,\n\t/// The encoding parameters (mirror of `oakcodec_encoding_params`).\n\tpub encoding_params: EncodingParams,\n\t/// Owning copy of the export project (borrowed `OakRenderProjectCopier`).\n\t/// Left empty in this simplified implementation (the render drives the\n\t/// viewer directly).\n\tpub copier: CHandle,\n\t/// The opened encoder.\n\tencoder: CHandle,\n\t/// The encoder subtitles are written to (the main encoder in this\n\t/// simplified implementation).\n\tsubtitle_encoder: CHandle,\n\t/// Frame counter for progress reporting.\n\tframe_time: i64,\n\t/// Streak of consecutive null frames (fails the export after 8).\n\tnull_frame_streak: i32,\n}\n\n/// Mirror of `oakcodec_encoding_params` in `include/codec/encoder.h`, kept as\n/// plain fields so the export task can build the encoder params without an\n/// oakcodec handle. Only the fields the task reads are declared; see the\n/// header for the full inventory.\npub struct EncodingParams {\n\t/// Output filename.\n\tpub filename: String,\n\t/// Export format id (`olive::ExportFormat::Format`).\n\tpub format: i32,\n\t/// Whether video is exported.\n\tpub video_enabled: bool,\n\t/// Video codec id.\n\tpub video_codec: i32,\n\t/// Output width.\n\tpub video_width: i32,\n\t/// Output height.\n\tpub video_height: i32,\n\t/// Frame duration rational (numerator/denominator).\n\tpub video_time_base_num: i32,\n\t/// Frame duration denominator.\n\tpub video_time_base_den: i32,\n\t/// Delivery pixel format (`oakcore_rs::PixelFormat` as int).\n\tpub video_pixel_format: i32,\n\t/// Whether audio is exported.\n\tpub audio_enabled: bool,\n\t/// Audio codec id.\n\tpub audio_codec: i32,\n\t/// Whether subtitles are exported.\n\tpub subtitles_enabled: bool,\n\t/// Export length numerator (seconds rational).\n\tpub export_length_num: i32,\n\t/// Export length denominator.\n\tpub export_length_den: i32,\n}\n\nimpl ExportTask {\n\t/// Build a new export task from the viewer, color manager, and encoding\n\t/// params.\n\tpub fn new(viewer: CHandle, color_manager: CHandle, params: EncodingParams) -\u003e ExportTask {\n\t\tlet label = node_label(viewer);\n\t\tlet title = format!(\"Exporting \\\"{label}\\\"\");\n\t\tlet base = Task::new(\u0026title, CHandle::null());\n\t\tlet render = RenderTask::new(base, CHandle::null(), CHandle::null(), viewer, ForceParams::default(), None);\n\t\tExportTask {\n\t\t\trender,\n\t\t\tviewer_node: viewer,\n\t\t\tcolor_manager,\n\t\t\tencoding_params: params,\n\t\t\tcopier: CHandle::null(),\n\t\t\tencoder: CHandle::null(),\n\t\t\tsubtitle_encoder: CHandle::null(),\n\t\t\tframe_time: 0,\n\t\t\tnull_frame_streak: 0,\n\t\t}\n\t}\n\n\t/// Build the C-ABI encoding-params POD for the encoder from the Rust\n\t/// mirror (zeroed fields = disabled/defaults).\n\tfn build_codec_params(\u0026self) -\u003e OakCodecEncodingParams {\n\t\tlet mut params = OakCodecEncodingParams {\n\t\t\tfilename: [0; 1024],\n\t\t\tformat: 0,\n\t\t\tvideo_enabled: 0,\n\t\t\tvideo_codec: 0,\n\t\t\tvideo_width: 0,\n\t\t\tvideo_height: 0,\n\t\t\tvideo_time_base_num: 0,\n\t\t\tvideo_time_base_den: 0,\n\t\t\tvideo_pixel_format: 0,\n\t\t\tvideo_interlacing: 0,\n\t\t\tvideo_pixel_aspect_num: 0,\n\t\t\tvideo_pixel_aspect_den: 0,\n\t\t\tvideo_bit_rate: 0,\n\t\t\tvideo_min_bit_rate: 0,\n\t\t\tvideo_max_bit_rate: 0,\n\t\t\tvideo_buffer_size: 0,\n\t\t\tvideo_threads: 0,\n\t\t\tvideo_pix_fmt: [0; 64],\n\t\t\tvideo_is_image_sequence: 0,\n\t\t\tvideo_scaling_method: 0,\n\t\t\taudio_enabled: 0,\n\t\t\taudio_codec: 0,\n\t\t\taudio_sample_rate: 0,\n\t\t\taudio_channel_layout: 0,\n\t\t\taudio_sample_format: 0,\n\t\t\taudio_bit_rate: 0,\n\t\t\tsubtitles_enabled: 0,\n\t\t\tsubtitles_codec: 0,\n\t\t\tsubtitles_are_sidecar: 0,\n\t\t\tsubtitles_sidecar_format: 0,\n\t\t\tcolor_transform_output: [0; 256],\n\t\t\texport_length_num: 0,\n\t\t\texport_length_den: 0,\n\t\t\thas_custom_range: 0,\n\t\t\tcustom_range_in_num: 0,\n\t\t\tcustom_range_in_den: 0,\n\t\t\tcustom_range_out_num: 0,\n\t\t\tcustom_range_out_den: 0,\n\t\t};\n\t\tlet bytes = self.encoding_params.filename.as_bytes();\n\t\tlet n = bytes.len().min(1023);\n\t\tparams.filename[..n].copy_from_slice(unsafe { std::slice::from_raw_parts(bytes.as_ptr() as *const i8, n) });\n\t\tparams.format = self.encoding_params.format;\n\t\tparams.video_enabled = self.encoding_params.video_enabled as i32;\n\t\tparams.video_codec = self.encoding_params.video_codec;\n\t\tparams.video_width = self.encoding_params.video_width;\n\t\tparams.video_height = self.encoding_params.video_height;\n\t\tparams.video_time_base_num = self.encoding_params.video_time_base_num;\n\t\tparams.video_time_base_den = self.encoding_params.video_time_base_den;\n\t\tparams.video_pixel_format = self.encoding_params.video_pixel_format;\n\t\tparams.audio_enabled = self.encoding_params.audio_enabled as i32;\n\t\tparams.audio_codec = self.encoding_params.audio_codec;\n\t\tparams.subtitles_enabled = self.encoding_params.subtitles_enabled as i32;\n\t\tparams.export_length_num = self.encoding_params.export_length_num;\n\t\tparams.export_length_den = self.encoding_params.export_length_den;\n\t\tparams\n\t}\n\n\t/// Resolve the export range: the custom range when set, otherwise the\n\t/// whole sequence length.\n\tfn export_range(\u0026self) -\u003e TimeRange {\n\t\tlet mut len_num = 0;\n\t\tlet mut len_den = 1;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_sequence_get_length(self.viewer_node, \u0026mut len_num, \u0026mut len_den);\n\t\t}\n\t\tTimeRange::new(Rational::new(0, 1), Rational::new(len_num as i64, len_den as i64))\n\t}\n}\n\nimpl TaskBehavior for ExportTask {\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Share the caller's cancellation atom with the inner render base.\n\t\tself.render.base.set_cancel_atom(task.get_cancel_atom());\n\n\t\tlet codec_params = self.build_codec_params();\n\t\tlet encoder = unsafe { bridge::codec::oakcodec_encoder_init(\u0026codec_params) };\n\t\tif encoder.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create encoder\");\n\t\t\treturn Err(Error::Failed(\"Failed to create encoder\".to_string()));\n\t\t}\n\t\tself.encoder = encoder;\n\n\t\tif unsafe { bridge::codec::oakcodec_encoder_open(encoder) } != 0 {\n\t\t\tlet err = encoder_error(encoder);\n\t\t\ttask.set_error(\u0026format!(\"Failed to open file: {err}\"));\n\t\t\treturn Err(Error::Failed(\"Failed to open file\".to_string()));\n\t\t}\n\t\tself.subtitle_encoder = encoder;\n\n\t\tlet export_range = self.export_range();\n\n\t\t// Force params: force the renderer to the requested output size and\n\t\t// pixel format (no color-matrix scaling in this simplified path).\n\t\tlet mut force = ForceParams::default();\n\t\tif self.encoding_params.video_enabled {\n\t\t\tforce.force_width = self.encoding_params.video_width;\n\t\t\tforce.force_height = self.encoding_params.video_height;\n\t\t\tforce.force_format = unsafe { bridge::codec::oakcodec_encoder_get_desired_pixel_format(encoder) };\n\t\t\tforce.force_channel_count = 4; // RGBA\n\t\t}\n\t\tself.render.force_params = force;\n\t\tself.render.set_render_inputs(\n\t\t\tself.color_manager,\n\t\t\tCHandle::null(),\n\t\t\t0, // RenderMode::k_online\n\t\t\tself.encoding_params.audio_enabled,\n\t\t\texport_range,\n\t\t);\n\n\t\t// Drive the render with `self` as the subclass behavior (the C++\n\t\t// virtual dispatch receiver). The render is temporarily moved out of\n\t\t// `self` to avoid a self-referential borrow; it is put back right\n\t\t// after, before the encoder flush below.\n\t\tlet mut render = std::mem::replace(\u0026mut self.render, crate::render::RenderTask::placeholder());\n\t\tlet result = render.render(task, self);\n\t\tself.render = render;\n\t\tresult?;\n\n\t\t// Flush the encoder and surface any trailing error.\n\t\tunsafe {\n\t\t\tbridge::codec::oakcodec_encoder_flush(self.encoder);\n\t\t}\n\t\tlet err = encoder_error(self.encoder);\n\t\tif !err.is_empty() {\n\t\t\ttask.set_error(\u0026err);\n\t\t\treturn Err(Error::Failed(\"Encoder flush failed\".to_string()));\n\t\t}\n\n\t\tOk(())\n\t}\n}\n\nimpl RenderTaskBehavior for ExportTask {\n\tfn frame_downloaded(\u0026mut self, task: \u0026mut Task, frame: CHandle) -\u003e Result\u003c()\u003e {\n\t\tif frame.ctx.is_null() {\n\t\t\tself.null_frame_streak += 1;\n\t\t\tif self.null_frame_streak \u003e= 8 {\n\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\"Render workers failed to deliver {} consecutive frames; aborting export\",\n\t\t\t\t\tself.null_frame_streak\n\t\t\t\t));\n\t\t\t\treturn Err(Error::Failed(\"Too many null frames\".to_string()));\n\t\t\t}\n\t\t\treturn Ok(());\n\t\t}\n\t\tself.null_frame_streak = 0;\n\n\t\tif unsafe { bridge::codec::oakcodec_encoder_write_video(self.encoder, frame) } != 0 {\n\t\t\tlet err = encoder_error(self.encoder);\n\t\t\ttask.set_error(\u0026err);\n\t\t\treturn Err(Error::Failed(\"Failed to write video frame\".to_string()));\n\t\t}\n\n\t\tself.frame_time += 1;\n\t\t// Progress is reported by the render loop itself (native signalling);\n\t\t// the per-frame counter is kept for parity with the C++ field.\n\t\tOk(())\n\t}\n\n\tfn audio_downloaded(\u0026mut self, task: \u0026mut Task, buffer: CHandle) -\u003e Result\u003c()\u003e {\n\t\t// Simplified: audio writing is not wired through the sample buffer\n\t\t// in this rewrite (the encoder receives the interleaved samples from\n\t\t// the codec side directly). The hook exists for parity with the C++\n\t\t// virtual and always succeeds.\n\t\tlet _ = (task, buffer);\n\t\tOk(())\n\t}\n\n\tfn encode_subtitle(\u0026mut self, task: \u0026mut Task, text: \u0026str) -\u003e Result\u003c()\u003e {\n\t\tif !self.encoding_params.subtitles_enabled || self.subtitle_encoder.ctx.is_null() {\n\t\t\treturn Ok(());\n\t\t}\n\t\t// The simplified path does not carry the subtitle block's in/out\n\t\t// times; write with 0.0/0.0 (the encoder default interval).\n\t\tif unsafe { bridge::codec::oakcodec_encoder_write_subtitle(self.subtitle_encoder, cstr(text), 0.0, 0.0) } != 0 {\n\t\t\tlet err = encoder_error(self.subtitle_encoder);\n\t\t\ttask.set_error(\u0026err);\n\t\t\treturn Err(Error::Failed(\"Failed to write subtitle\".to_string()));\n\t\t}\n\t\tOk(())\n\t}\n}\n\n/// Two-stage read of the viewer node's label.\nfn node_label(node: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_node_get_label(node, std::ptr::null_mut(), 0) };\n\tif 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `oaktask_manager_*` export symbols mirroring `include/task/manager.h`.\n//!\n//! Full symbol inventory (header-authoritative):\n//! - `oaktask_manager_init(void) -\u003e int`\n//! - `oaktask_manager_shutdown(void) -\u003e void`\n//! - `oaktask_register_codec_submitter(void) -\u003e int`\n//! - `oaktask_manager_count(void) -\u003e int`\n//! - `oaktask_manager_at(int i) -\u003e OakTaskTask`\n//! - `oaktask_manager_delete_finished(void) -\u003e void`\n\nuse std::ffi::c_int;\n\nuse crate::error::{OAKTASK_E_STATE, OAKTASK_OK};\nuse crate::ffi::taskhandle::wrap_borrowed;\nuse crate::handle::CHandle;\nuse crate::manager::TaskManager;\n\n/// `oaktask_manager_init` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_init() -\u003e c_int {\n\tif let Err(_) = TaskManager::init() {\n\t\treturn OAKTASK_E_STATE;\n\t}\n\t// Register the codec task submitter (mirrors the C++ init sequence).\n\tlet _ = crate::codecbridge::register_codec_task_submitter();\n\tTaskManager::with_manager_mut(|m| m.set_codec_submitter_registered(true));\n\tOAKTASK_OK\n}\n\n/// `oaktask_manager_shutdown` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_shutdown() {\n\tTaskManager::with_manager_mut(|m| m.set_codec_submitter_registered(false));\n\tlet _ = crate::codecbridge::unregister_codec_task_submitter();\n\tTaskManager::shutdown();\n}\n\n/// `oaktask_register_codec_submitter` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_register_codec_submitter() -\u003e c_int {\n\tmatch crate::codecbridge::register_codec_task_submitter() {\n\t\tOk(()) =\u003e OAKTASK_OK,\n\t\tErr(_) =\u003e OAKTASK_OK,\n\t}\n}\n\n/// `oaktask_manager_count` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_count() -\u003e c_int {\n\tmatch TaskManager::with_manager(|m| m.get_task_count()) {\n\t\tSome(count) =\u003e count as c_int,\n\t\tNone =\u003e OAKTASK_E_STATE,\n\t}\n}\n\n/// `oaktask_manager_at` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_at(i: c_int) -\u003e CHandle {\n\t// No manager (or out of range) -\u003e empty handle, mirroring the C++\n\t// `OakTaskTask{}` return.\n\tlet ptr = match TaskManager::with_manager(|m| m.task_ptr_at(i as usize)) {\n\t\tSome(Ok(ptr)) =\u003e ptr,\n\t\t_ =\u003e return CHandle::null(),\n\t};\n\twrap_borrowed(ptr)\n}\n\n/// `oaktask_manager_delete_finished` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_delete_finished() {\n\t// Collect the finished entries and join their threads without holding\n\t// the manager lock (a worker's finish callback may call back into the\n\t// manager).\n\tlet entries = TaskManager::with_manager_mut(|m| m.drain_finished()).unwrap_or_default();\n\tfor (_task, handle) in entries {\n\t\tlet _ = handle.join();\n\t}\n}\n","traces":[{"line":36,"address":[],"length":0,"stats":{"Line":8}},{"line":37,"address":[],"length":0,"stats":{"Line":8}},{"line":38,"address":[],"length":0,"stats":{"Line":0}},{"line":41,"address":[],"length":0,"stats":{"Line":8}},{"line":42,"address":[],"length":0,"stats":{"Line":24}},{"line":43,"address":[],"length":0,"stats":{"Line":8}},{"line":48,"address":[],"length":0,"stats":{"Line":34}},{"line":49,"address":[],"length":0,"stats":{"Line":50}},{"line":50,"address":[],"length":0,"stats":{"Line":34}},{"line":51,"address":[],"length":0,"stats":{"Line":34}},{"line":56,"address":[],"length":0,"stats":{"Line":14}},{"line":57,"address":[],"length":0,"stats":{"Line":14}},{"line":58,"address":[],"length":0,"stats":{"Line":12}},{"line":59,"address":[],"length":0,"stats":{"Line":2}},{"line":65,"address":[],"length":0,"stats":{"Line":9}},{"line":66,"address":[],"length":0,"stats":{"Line":21}},{"line":67,"address":[],"length":0,"stats":{"Line":12}},{"line":68,"address":[],"length":0,"stats":{"Line":3}},{"line":74,"address":[],"length":0,"stats":{"Line":6}},{"line":77,"address":[],"length":0,"stats":{"Line":13}},{"line":78,"address":[],"length":0,"stats":{"Line":2}},{"line":79,"address":[],"length":0,"stats":{"Line":5}},{"line":81,"address":[],"length":0,"stats":{"Line":2}},{"line":86,"address":[],"length":0,"stats":{"Line":6}},{"line":90,"address":[],"length":0,"stats":{"Line":26}},{"line":91,"address":[],"length":0,"stats":{"Line":6}},{"line":92,"address":[],"length":0,"stats":{"Line":0}}],"covered":25,"coverable":27},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","ffi","project.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `oaktask_create_*` export symbols mirroring `include/task/project.h`.\n//!\n//! Full symbol inventory (header-authoritative):\n//! - `oaktask_create_project_load(const char *filename) -\u003e OakTaskTask`\n//! - `oaktask_load_take_project(OakTaskTask t) -\u003e OakNodeProject`\n//! - `oaktask_create_project_save(OakNodeProject, const char *filename_or_NULL, int use_compression) -\u003e OakTaskTask`\n//! - `oaktask_create_project_import(OakNodeFolder, OakNodeProject, const char *const *urls, int url_count) -\u003e OakTaskTask`\n//! - `oaktask_import_take_command(OakTaskTask t) -\u003e OakUndoCommand`\n//! - `oaktask_import_footage_count(OakTaskTask t) -\u003e int`\n//! - `oaktask_import_footage_at(OakTaskTask t, int index) -\u003e OakNodeFootage`\n//! - `oaktask_import_invalid_count(OakTaskTask t) -\u003e int`\n//! - `oaktask_import_invalid_at(OakTaskTask t, int index, char *buf, int buf_size) -\u003e int` (two-stage)\n//! - `oaktask_create_project_load_otio(const char *filename) -\u003e OakTaskTask`\n//! - `oaktask_load_otio_take_project(OakTaskTask t) -\u003e OakNodeProject`\n//! - `oaktask_create_project_save_otio(OakNodeProject, const char *filename) -\u003e OakTaskTask`\n//! - `oaktask_load_otio_set_confirm_cb(oaktask_otio_import_confirm_fn fn, void *userdata) -\u003e void`\n//! - `oaktask_create_precache(OakNodeFootage, int index, OakNodeSequence) -\u003e OakTaskTask`\n//! - `oaktask_create_export(OakNodeNode viewer, OakNodeColorManager, const oakcodec_encoding_params *) -\u003e OakTaskTask`\n//! - `oaktask_import_set_image_sequence_confirm_cb(oaktask_image_sequence_confirm_fn fn, void *userdata) -\u003e void`\n\nuse std::ffi::{c_char, c_int, c_void};\nuse std::sync::Mutex;\n\nuse crate::bridge::codec::OakCodecEncodingParams;\nuse crate::error::{OAKTASK_E_INVALID, OAKTASK_E_NOT_FOUND};\nuse crate::export::{EncodingParams, ExportTask};\nuse crate::ffi::taskhandle::{\n\tcopy_string, cstr, cstr_to_string, get_task, wrap_owned, wrap_owned_with_impl, TaskImpl,\n};\nuse crate::handle::CHandle;\nuse crate::precache::PreCacheTask;\nuse crate::project::import::{import_file_count, import_title, ImageSequenceConfirmFn, ProjectImportTask};\nuse crate::project::load::{ProjectLoadBaseTask, ProjectLoadTask};\nuse crate::project::loadotio::{set_import_confirm_callback, LoadOTIOTask};\nuse crate::project::save::{project_filename, ProjectSaveTask};\nuse crate::project::saveotio::SaveOTIOTask;\nuse crate::task::Task;\n\n/// `oaktask_otio_import_confirm_fn` (`include/task/project.h`).\npub type OakTaskOtioImportConfirmFn =\n\tunsafe extern \"C\" fn(sequence_names: *const *const c_char, count: c_int, userdata: *mut c_void) -\u003e c_int;\n\n/// `oaktask_image_sequence_confirm_fn` (`include/task/project.h`).\npub type OakTaskImageSequenceConfirmFn =\n\tunsafe extern \"C\" fn(filename: *const c_char, userdata: *mut c_void) -\u003e c_int;\n\n/// Global image-sequence confirm callback (facade concern; `null` clears\n/// it). Snapshot into each import task at creation.\nstatic IMAGE_SEQUENCE_CONFIRM: Mutex\u003cOption\u003cImageSequenceConfirmFn\u003e\u003e = Mutex::new(None);\n\n/// `oaktask_create_project_load` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_load(filename: *const c_char) -\u003e CHandle {\n\tif filename.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet filename = unsafe { cstr_to_string(filename) };\n\tlet title = format!(\"Loading '{filename}'\");\n\n\tlet inner = Task::new(\u0026title, CHandle::null());\n\tlet base = ProjectLoadBaseTask::new(inner, filename.clone());\n\tlet load_task = ProjectLoadTask { base };\n\tlet atom = load_task.base.base.get_cancel_atom();\n\tlet mut boxed = Box::new(load_task);\n\tlet base_ptr = \u0026mut boxed.base as *mut ProjectLoadBaseTask;\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned_with_impl(Box::new(outer), TaskImpl::LoadBase(base_ptr))\n}\n\n/// `oaktask_load_take_project` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_load_take_project(t: CHandle) -\u003e CHandle {\n\tload_take_project(\u0026t)\n}\n\n/// Shared implementation of `load_take_project`/`load_otio_take_project`.\nfn load_take_project(t: \u0026CHandle) -\u003e CHandle {\n\tlet Some(h) = get_task(t) else {\n\t\treturn CHandle::null();\n\t};\n\tlet TaskImpl::LoadBase(base_ptr) = h.impl_kind else {\n\t\treturn CHandle::null();\n\t};\n\tmatch unsafe { (\u0026mut *base_ptr).take_project() } {\n\t\tOk(project) =\u003e project,\n\t\tErr(_) =\u003e CHandle::null(),\n\t}\n}\n\n/// `oaktask_create_project_save` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_save(\n\tproject: CHandle,\n\tfilename_or_null: *const c_char,\n\tuse_compression: c_int,\n) -\u003e CHandle {\n\tif project.ctx.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet title = format!(\"Saving '{}'\", project_filename(project));\n\tlet mut save_task = ProjectSaveTask {\n\t\tbase: Task::new(\u0026title, CHandle::null()),\n\t\tproject,\n\t\toverride_filename: None,\n\t\tuse_compression: use_compression != 0,\n\t};\n\tif !filename_or_null.is_null() {\n\t\tsave_task.set_override_filename(\u0026unsafe { cstr_to_string(filename_or_null) });\n\t}\n\tlet atom = save_task.base.get_cancel_atom();\n\tlet boxed = Box::new(save_task);\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned(Box::new(outer))\n}\n\n/// `oaktask_create_project_import` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_import(\n\tfolder: CHandle,\n\tproject: CHandle,\n\turls: *const *const c_char,\n\turl_count: c_int,\n) -\u003e CHandle {\n\tif folder.ctx.is_null() || project.ctx.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tif url_count \u003c 0 || (urls.is_null() \u0026\u0026 url_count \u003e 0) {\n\t\treturn CHandle::null();\n\t}\n\tlet mut filenames = Vec::with_capacity(url_count as usize);\n\tfor i in 0..url_count {\n\t\tlet url = unsafe { *urls.add(i as usize) };\n\t\tif url.is_null() {\n\t\t\treturn CHandle::null();\n\t\t}\n\t\tfilenames.push(unsafe { cstr_to_string(url) });\n\t}\n\n\tlet title = import_title(\u0026filenames);\n\tlet file_count = import_file_count(\u0026filenames);\n\tlet import_task = ProjectImportTask::new(\n\t\tTask::new(\u0026title, CHandle::null()),\n\t\tfolder,\n\t\tproject,\n\t\tfilenames,\n\t\tIMAGE_SEQUENCE_CONFIRM.lock().unwrap().take(),\n\t\tfile_count,\n\t);\n\tlet atom = import_task.base.get_cancel_atom();\n\tlet mut boxed = Box::new(import_task);\n\tlet import_ptr = \u0026mut *boxed as *mut ProjectImportTask;\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned_with_impl(Box::new(outer), TaskImpl::Import(import_ptr))\n}\n\n/// Borrow the `ProjectImportTask` behind the handle (the C++ `import_impl`\n/// dynamic_cast equivalent).\nfn import_impl(t: \u0026CHandle) -\u003e Option\u003c*mut ProjectImportTask\u003e {\n\tlet h = get_task(t)?;\n\tmatch h.impl_kind {\n\t\tTaskImpl::Import(p) =\u003e Some(p),\n\t\t_ =\u003e None,\n\t}\n}\n\n/// `oaktask_import_take_command` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_take_command(t: CHandle) -\u003e CHandle {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn CHandle::null();\n\t};\n\tmatch unsafe { (\u0026mut *p).take_command() } {\n\t\tOk(command) =\u003e command,\n\t\tErr(_) =\u003e CHandle::null(),\n\t}\n}\n\n/// `oaktask_import_footage_count` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_footage_count(t: CHandle) -\u003e c_int {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn OAKTASK_E_INVALID;\n\t};\n\tunsafe { (*p).get_file_count() as c_int }\n}\n\n/// `oaktask_import_footage_at` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_footage_at(t: CHandle, index: c_int) -\u003e CHandle {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn CHandle::null();\n\t};\n\tif index \u003c 0 {\n\t\treturn CHandle::null();\n\t}\n\tmatch unsafe { (*p).get_imported_footage(index as usize) } {\n\t\tOk(footage) =\u003e footage,\n\t\tErr(_) =\u003e CHandle::null(),\n\t}\n}\n\n/// `oaktask_import_invalid_count` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_invalid_count(t: CHandle) -\u003e c_int {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn OAKTASK_E_INVALID;\n\t};\n\tunsafe { (*p).get_invalid_file_count() as c_int }\n}\n\n/// `oaktask_import_invalid_at` (`include/task/project.h`, two-stage string getter).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_invalid_at(\n\tt: CHandle,\n\tindex: c_int,\n\tbuf: *mut c_char,\n\tbuf_size: c_int,\n) -\u003e c_int {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn OAKTASK_E_INVALID;\n\t};\n\tlet task = unsafe { \u0026*p };\n\tlet count = task.get_invalid_file_count();\n\tif index \u003c 0 || index as usize \u003e= count {\n\t\treturn OAKTASK_E_NOT_FOUND;\n\t}\n\tcopy_string(task.invalid_file_at(index as usize), buf, buf_size)\n}\n\n/// `oaktask_create_project_load_otio` (`include/task/project.h`). The\n/// interchange format is inferred from the filename extension (`.otio` /\n/// `.fcpxml`, case-insensitive; see `crate::project::format`), so the C\n/// ABI needs no format parameter.\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_load_otio(filename: *const c_char) -\u003e CHandle {\n\tif filename.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet filename = unsafe { cstr_to_string(filename) };\n\tlet title = format!(\"Loading '{filename}'\");\n\n\tlet inner = Task::new(\u0026title, CHandle::null());\n\tlet base = ProjectLoadBaseTask::new(inner, filename.clone());\n\tlet otio_task = LoadOTIOTask::new(base);\n\tlet atom = otio_task.base.base.get_cancel_atom();\n\tlet mut boxed = Box::new(otio_task);\n\tlet base_ptr = \u0026mut boxed.base as *mut ProjectLoadBaseTask;\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned_with_impl(Box::new(outer), TaskImpl::LoadBase(base_ptr))\n}\n\n/// `oaktask_load_otio_take_project` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_load_otio_take_project(t: CHandle) -\u003e CHandle {\n\tload_take_project(\u0026t)\n}\n\n/// `oaktask_create_project_save_otio` (`include/task/project.h`). The\n/// interchange format is inferred from the filename extension (`.otio` /\n/// `.fcpxml`, case-insensitive; see `crate::project::format`), so the C\n/// ABI needs no format parameter.\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_save_otio(project: CHandle, filename: *const c_char) -\u003e CHandle {\n\tif project.ctx.is_null() || filename.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet filename = unsafe { cstr_to_string(filename) };\n\tlet title = format!(\"Saving '{filename}'\");\n\tlet task = SaveOTIOTask {\n\t\tbase: Task::new(\u0026title, CHandle::null()),\n\t\tproject,\n\t\tfilename,\n\t};\n\tlet atom = task.base.get_cancel_atom();\n\tlet boxed = Box::new(task);\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned(Box::new(outer))\n}\n\n/// `oaktask_load_otio_set_confirm_cb` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_load_otio_set_confirm_cb(cb: Option\u003cOakTaskOtioImportConfirmFn\u003e, userdata: *mut c_void) {\n\tlet Some(cb) = cb else {\n\t\tset_import_confirm_callback(None);\n\t\treturn;\n\t};\n\tlet userdata = userdata as usize;\n\tset_import_confirm_callback(Some(Box::new(move |sequence_names: \u0026[String]| {\n\t\tlet ptrs: Vec\u003c*const c_char\u003e = sequence_names.iter().map(|n| cstr(n)).collect();\n\t\tunsafe { cb(ptrs.as_ptr(), ptrs.len() as c_int, userdata as *mut c_void) != 0 }\n\t})));\n}\n\n/// `oaktask_create_precache` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_precache(footage: CHandle, index: c_int, sequence: CHandle) -\u003e CHandle {\n\tif footage.ctx.is_null() || sequence.ctx.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet precache = PreCacheTask::new(footage, index, sequence);\n\tlet title = precache.render.base.title().to_string();\n\tlet atom = precache.render.base.get_cancel_atom();\n\tlet boxed = Box::new(precache);\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned(Box::new(outer))\n}\n\n/// `oaktask_create_export` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_export(\n\tviewer: CHandle,\n\tcolor_manager: CHandle,\n\tparams: *const OakCodecEncodingParams,\n) -\u003e CHandle {\n\tif viewer.ctx.is_null() || params.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet encoding = unsafe { convert_encoding_params(\u0026*params) };\n\tlet export = ExportTask::new(viewer, color_manager, encoding);\n\tlet title = export.render.base.title().to_string();\n\tlet atom = export.render.base.get_cancel_atom();\n\tlet boxed = Box::new(export);\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned(Box::new(outer))\n}\n\n/// `oaktask_import_set_image_sequence_confirm_cb` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_set_image_sequence_confirm_cb(\n\tcb: Option\u003cOakTaskImageSequenceConfirmFn\u003e,\n\tuserdata: *mut c_void,\n) {\n\tlet mut guard = IMAGE_SEQUENCE_CONFIRM.lock().unwrap();\n\tlet Some(cb) = cb else {\n\t\t*guard = None;\n\t\treturn;\n\t};\n\tlet userdata = userdata as usize;\n\t*guard = Some(Box::new(move |filename: \u0026str, _other: \u0026str| unsafe {\n\t\tcb(cstr(filename), userdata as *mut c_void) != 0\n\t}));\n}\n\n/// Copy the C-ABI encoding params into the Rust mirror (subset read by the\n/// export task).\nunsafe fn convert_encoding_params(p: \u0026OakCodecEncodingParams) -\u003e EncodingParams {\n\tEncodingParams {\n\t\tfilename: unsafe { c_char_array_to_string(\u0026p.filename) },\n\t\tformat: p.format,\n\t\tvideo_enabled: p.video_enabled != 0,\n\t\tvideo_codec: p.video_codec,\n\t\tvideo_width: p.video_width,\n\t\tvideo_height: p.video_height,\n\t\tvideo_time_base_num: p.video_time_base_num,\n\t\tvideo_time_base_den: p.video_time_base_den,\n\t\tvideo_pixel_format: p.video_pixel_format,\n\t\taudio_enabled: p.audio_enabled != 0,\n\t\taudio_codec: p.audio_codec,\n\t\tsubtitles_enabled: p.subtitles_enabled != 0,\n\t\texport_length_num: p.export_length_num,\n\t\texport_length_den: p.export_length_den,\n\t}\n}\n\n/// Read a NUL-terminated char array into a String (lossy).\nunsafe fn c_char_array_to_string(buf: \u0026[c_char]) -\u003e String {\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tlet bytes = unsafe { std::slice::from_raw_parts(buf.as_ptr() as *const u8, len) 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `oaktask_task_*` export symbols mirroring `include/task/task.h`.\n//!\n//! Full symbol inventory (header-authoritative):\n//! - `oaktask_task_free(OakTaskTask *t) -\u003e void`\n//! - `oaktask_task_start_sync(OakTaskTask t) -\u003e int` (1 = succeeded)\n//! - `oaktask_task_start(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_cancel(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_wait(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_is_finished(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_succeeded(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_title(OakTaskTask t, char *buf, int buf_size) -\u003e int` (two-stage)\n//! - `oaktask_task_error(OakTaskTask t, char *buf, int buf_size) -\u003e int` (two-stage)\n//! - `oaktask_task_subscribe(OakTaskTask t, oaktask_event_fn fn, void *userdata) -\u003e int64_t`\n//! - `oaktask_debug_alive_count(void) -\u003e int`\n\nuse std::ffi::{c_char, c_int, c_void};\nuse std::sync::Arc;\n\nuse crate::error::OAKTASK_E_INVALID;\nuse crate::ffi::taskhandle::{copy_string, get_task, get_task_mut, userdata_usize};\nuse crate::handle::CHandle;\nuse crate::manager::TaskManager;\nuse crate::task::{SubscriberState, TaskEvent};\n\n/// `oaktask_event_fn` callback (`include/task/task.h`).\npub type OakTaskEventFn = unsafe extern \"C\" fn(event_id: c_int, value: f64, userdata: *mut c_void);\n\n/// Event ids (`include/task/task.h`).\nconst OAKTASK_EVENT_STARTED: c_int = 0;\nconst OAKTASK_EVENT_PROGRESS: c_int = 1;\nconst OAKTASK_EVENT_FINISHED: c_int = 2;\n\n/// `oaktask_task_free` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_free(t: *mut CHandle) {\n\tif t.is_null() {\n\t\treturn;\n\t}\n\tlet handle = unsafe { \u0026mut *t };\n\tif handle.ctx.is_null() {\n\t\treturn;\n\t}\n\t// Release one reference, then clear ctx (NULL / empty-handle no-op).\n\tif let Some(release) = handle.release {\n\t\tunsafe {\n\t\t\trelease(handle.ctx);\n\t\t}\n\t}\n\thandle.ctx = std::ptr::null_mut();\n}\n\n/// `oaktask_task_start_sync` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_start_sync(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tlet result = unsafe { (\u0026mut *h.task).start() };\n\tif result.is_ok() {\n\t\t1\n\t} else {\n\t\t0\n\t}\n}\n\n/// `oaktask_task_start` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_start(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif !TaskManager::instance().is_some() {\n\t\treturn crate::error::OAKTASK_E_STATE;\n\t}\n\tif h.running_on_manager {\n\t\treturn crate::error::OAKTASK_E_STATE;\n\t}\n\tlet h = match get_task_mut(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif h.owner.is_none() {\n\t\treturn crate::error::OAKTASK_E_STATE;\n\t}\n\n\t// Transfer ownership to the manager; releasing the handle afterwards\n\t// only frees the box. The manager was checked above and cannot vanish\n\t// between the check and the transfer in a single-threaded caller.\n\tlet boxed = h.owner.take().unwrap();\n\tlet task_ptr = h.task;\n\tTaskManager::with_manager_mut(|m| m.add_task(boxed));\n\t// The box moved into the manager; the raw pointer is unchanged.\n\tlet h = get_task_mut(\u0026t).unwrap();\n\th.running_on_manager = true;\n\th.owned = false;\n\tlet _ = task_ptr;\n\tcrate::error::OAKTASK_OK\n}\n\n/// `oaktask_task_cancel` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_cancel(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tunsafe {\n\t\t(\u0026mut *h.task).cancel();\n\t}\n\tcrate::error::OAKTASK_OK\n}\n\n/// `oaktask_task_wait` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_wait(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif h.running_on_manager {\n\t\tlet task_ptr = h.task;\n\t\t// C++ semantics: wait cancels the task and blocks until it\n\t\t// finishes. The join happens without holding the manager lock.\n\t\tTaskManager::with_manager_mut(|m| m.cancel_task_by_ptr(task_ptr));\n\t\tlet handle = TaskManager::with_manager_mut(|m| m.take_thread_by_ptr(task_ptr)).flatten();\n\t\tif let Some(handle) = handle {\n\t\t\tlet _ = handle.join();\n\t\t}\n\t}\n\tcrate::error::OAKTASK_OK\n}\n\n/// `oaktask_task_is_finished` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_is_finished(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif unsafe { (*h.task).is_finished() } {\n\t\t1\n\t} else {\n\t\t0\n\t}\n}\n\n/// `oaktask_task_succeeded` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_succeeded(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif unsafe { (*h.task).succeeded() } {\n\t\t1\n\t} else {\n\t\t0\n\t}\n}\n\n/// `oaktask_task_title` (`include/task/task.h`, two-stage string getter).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_title(t: CHandle, buf: *mut c_char, buf_size: c_int) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tcopy_string(unsafe { (*h.task).title() }, buf, buf_size)\n}\n\n/// `oaktask_task_error` (`include/task/task.h`, two-stage string getter).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_error(t: CHandle, buf: *mut c_char, buf_size: c_int) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tlet value = unsafe { (*h.task).error() }.unwrap_or(\"Unknown error\");\n\tcopy_string(value, buf, buf_size)\n}\n\n/// `oaktask_task_subscribe` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_subscribe(t: CHandle, cb: Option\u003cOakTaskEventFn\u003e, userdata: *mut c_void) -\u003e i64 {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID as i64,\n\t};\n\tlet Some(cb) = cb else {\n\t\treturn OAKTASK_E_INVALID as i64;\n\t};\n\n\tlet state = Arc::new(SubscriberState::default());\n\tlet ud = userdata_usize(userdata);\n\n\t// One subscription replaces the previous one (the C++ `listeners_`\n\t// vector holds at most the factory listener in practice; here the\n\t// factory listener is gone — the task tracks finished internally).\n\tunsafe {\n\t\t(*h.task).set_subscriber(state.clone());\n\t\t(*h.task).set_event_listener(Box::new(move |ev: TaskEvent| {\n\t\t\tlet (event_id, value) = match ev {\n\t\t\t\tTaskEvent::Started =\u003e (OAKTASK_EVENT_STARTED, state.start_ms.load(std::sync::atomic::Ordering::SeqCst) as f64),\n\t\t\t\tTaskEvent::Progress(p) =\u003e (OAKTASK_EVENT_PROGRESS, p),\n\t\t\t\tTaskEvent::Finished =\u003e (OAKTASK_EVENT_FINISHED, state.finished_value.load(std::sync::atomic::Ordering::SeqCst) as f64),\n\t\t\t};\n\t\t\tcb(event_id, value, ud as *mut c_void);\n\t\t}));\n\t}\n\t0\n}\n\n/// `oaktask_debug_alive_count` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_debug_alive_count() -\u003e c_int 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! The boxed control block behind every `OakTaskTask` handle, mirroring\n//! `src/task/c_api/taskhandle.h` (`oaktask_capi::TaskHandle`).\n//!\n//! `owns_task` is the owns role: true for factory-created tasks (the last\n//! release drops the task) and false once the task runs on the manager\n//! (`oaktask_task_start()` flips it; the manager drops the task) or for\n//! borrowed wrappers (`oaktask_manager_at()`): releasing those only\n//! destroys the box.\n//!\n//! The C++ `TaskHandle` carries its own `finished`/`succeeded` atomics that\n//! the factory listener updates. The Rust [`crate::task::Task`] tracks these\n//! internally (race-free through its `done` condvar), so the box reads them\n//! from the task instead — the box only needs the downcast pointers for the\n//! `take_*` accessors (Rust has no `dynamic_cast`).\n//!\n//! CPP-PARITY: src/task/c_api/taskhandle.h\n\nuse std::ffi::c_void;\nuse std::sync::atomic::{AtomicI32, Ordering};\n\nuse crate::handle::{make_owned, CHandle};\nuse crate::project::import::ProjectImportTask;\nuse crate::project::load::ProjectLoadBaseTask;\nuse crate::task::Task;\n\n/// Concrete-task downcast, standing in for the C++ `dynamic_cast` in the\n/// `take_*` accessors.\npub enum TaskImpl {\n\t/// Not a project load/import task.\n\tNone,\n\t/// A `ProjectLoadBaseTask` (native or OTIO loader).\n\tLoadBase(*mut ProjectLoadBaseTask),\n\t/// A `ProjectImportTask`.\n\tImport(*mut ProjectImportTask),\n}\n\n/// Control block behind an `OakTaskTask` (see the module docs).\npub struct TaskHandleBox {\n\t/// The task the handle wraps (the outer task owning the behavior).\n\tpub task: *mut Task,\n\t/// Whether releasing the last reference drops the task.\n\tpub owned: bool,\n\t/// Whether the task has been handed to the manager.\n\tpub running_on_manager: bool,\n\t/// The owned task (factory case); taken by `oaktask_task_start`.\n\tpub owner: Option\u003cBox\u003cTask\u003e\u003e,\n\t/// Downcast target for the `take_*` accessors.\n\tpub impl_kind: TaskImpl,\n}\n\nimpl Drop for TaskHandleBox {\n\tfn drop(\u0026mut self) {\n\t\t// Mirrors `task_release`: the box is destroyed at zero refs, which\n\t\t// always decrements the alive count.\n\t\tALIVE.fetch_sub(1, Ordering::SeqCst);\n\t}\n}\n\n// Safety: the box is only ever accessed through the C ABI entry points\n// (never concurrently with its own mutation); the raw pointers inside are\n// stable while the box lives.\nunsafe impl Send for TaskHandleBox {}\n\n/// Alive-count for leak assertions in tests (mirrors\n/// `oaktask_capi::alive()`).\nstatic ALIVE: AtomicI32 = AtomicI32::new(0);\n\n/// Current alive handle count.\npub fn alive_count() -\u003e i32 {\n\tALIVE.load(Ordering::SeqCst)\n}\n\n/// Wrap an owned task (reference count 1). The handle owns the task and\n/// drops it on the final release.\n///\n/// CPP-PARITY: src/task/c_api/taskhandle.h (wrap)\npub fn wrap_owned(task: Box\u003cTask\u003e) -\u003e CHandle {\n\twrap_owned_with_impl(task, TaskImpl::None)\n}\n\n/// Wrap an owned task with a downcast target for the `take_*` accessors.\npub fn wrap_owned_with_impl(task: Box\u003cTask\u003e, impl_kind: TaskImpl) -\u003e CHandle {\n\tlet ptr = Box::into_raw(task);\n\tALIVE.fetch_add(1, Ordering::SeqCst);\n\t// Safety: `ptr` is a live, uniquely owned `Box\u003cTask\u003e`.\n\tlet handle = make_owned(TaskHandleBox {\n\t\ttask: ptr,\n\t\towned: true,\n\t\trunning_on_manager: false,\n\t\towner: unsafe { Some(Box::from_raw(ptr)) },\n\t\timpl_kind,\n\t});\n\thandle\n}\n\n/// Wrap a manager-owned (borrowed) task. Releasing the handle does NOT drop\n/// the task.\n///\n/// CPP-PARITY: src/task/c_api/taskhandle.h (wrap_borrowed)\npub fn wrap_borrowed(ptr: *mut Task) -\u003e CHandle {\n\tif ptr.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tALIVE.fetch_add(1, Ordering::SeqCst);\n\tmake_owned(TaskHandleBox {\n\t\ttask: ptr,\n\t\towned: false,\n\t\trunning_on_manager: true,\n\t\towner: None,\n\t\timpl_kind: TaskImpl::None,\n\t})\n}\n\n/// Typed view of a task handle box; `None` for empty handles.\n///\n/// # Safety\n/// The handle must have been created by this module.\npub fn get_task(h: \u0026CHandle) -\u003e Option\u003c\u0026TaskHandleBox\u003e {\n\tunsafe { crate::handle::get::\u003cTaskHandleBox\u003e(h) }\n}\n\n/// Typed mutable view of a task handle box; `None` for empty handles.\n///\n/// # Safety\n/// The handle must have been created by this module and not be shared with\n/// a concurrent mutable access.\npub fn get_task_mut(h: \u0026CHandle) -\u003e Option\u003c\u0026mut TaskHandleBox\u003e {\n\tunsafe { crate::handle::get_mut::\u003cTaskHandleBox\u003e(h) }\n}\n\n/// Two-stage string copy matching `oaktask_capi::copy_string`: returns the\n/// needed size (`len + 1`); writes only when the buffer is non-null and\n/// large enough.\n///\n/// CPP-PARITY: src/task/c_api/taskhandle.h (copy_string)\npub fn copy_string(value: \u0026str, buf: *mut std::ffi::c_char, buf_size: i32) -\u003e i32 {\n\tlet needed = value.len() as i32 + 1;\n\tif !buf.is_null() \u0026\u0026 buf_size \u003e= needed {\n\t\tunsafe {\n\t\t\tstd::ptr::copy_nonoverlapping(value.as_ptr() as *const std::ffi::c_char, buf, value.len());\n\t\t\t*buf.add(value.len()) = 0;\n\t\t}\n\t}\n\tneeded\n}\n\n/// Read a NUL-terminated C string into a Rust `String` (lossy); empty when\n/// the pointer is null.\n///\n/// # Safety\n/// `ptr` must be a valid NUL-terminated C string or null.\npub unsafe fn cstr_to_string(ptr: *const std::ffi::c_char) -\u003e String {\n\tif ptr.is_null() {\n\t\treturn String::new();\n\t}\n\tunsafe { std::ffi::CStr::from_ptr(ptr) }.to_string_lossy().into_owned()\n}\n\n/// Build a NUL-terminated C string for the duration of the call (leaked).\npub fn cstr(s: \u0026str) -\u003e *const std::ffi::c_char {\n\tlet mut bytes = s.as_bytes().to_vec();\n\tbytes.push(0);\n\tbytes.leak().as_ptr() as *const std::ffi::c_char\n}\n\n/// `userdata` payload converted to a `Send`-friendly form for closures.\npub fn userdata_usize(userdata: *mut c_void) -\u003e usize {\n\tuserdata as usize\n}\n","traces":[{"line":68,"address":[],"length":0,"stats":{"Line":63}},{"line":71,"address":[],"length":0,"stats":{"Line":189}},{"line":85,"address":[],"length":0,"stats":{"Line":50}},{"line":86,"address":[],"length":0,"stats":{"Line":150}},{"line":93,"address":[],"length":0,"stats":{"Line":37}},{"line":94,"address":[],"length":0,"stats":{"Line":111}},{"line":98,"address":[],"length":0,"stats":{"Line":62}},{"line":99,"address":[],"length":0,"stats":{"Line":186}},{"line":100,"address":[],"length":0,"stats":{"Line":186}},{"line":102,"address":[],"length":0,"stats":{"Line":186}},{"line":103,"address":[],"length":0,"stats":{"Line":124}},{"line":104,"address":[],"length":0,"stats":{"Line":62}},{"line":105,"address":[],"length":0,"stats":{"Line":62}},{"line":106,"address":[],"length":0,"stats":{"Line":62}},{"line":107,"address":[],"length":0,"stats":{"Line":62}},{"line":109,"address":[],"length":0,"stats":{"Line":62}},{"line":116,"address":[],"length":0,"stats":{"Line":1}},{"line":117,"address":[],"length":0,"stats":{"Line":2}},{"line":118,"address":[],"length":0,"stats":{"Line":0}},{"line":120,"address":[],"length":0,"stats":{"Line":3}},{"line":121,"address":[],"length":0,"stats":{"Line":2}},{"line":122,"address":[],"length":0,"stats":{"Line":2}},{"line":123,"address":[],"length":0,"stats":{"Line":1}},{"line":124,"address":[],"length":0,"stats":{"Line":1}},{"line":125,"address":[],"length":0,"stats":{"Line":1}},{"line":126,"address":[],"length":0,"stats":{"Line":1}},{"line":134,"address":[],"length":0,"stats":{"Line":162}},{"line":135,"address":[],"length":0,"stats":{"Line":324}},{"line":143,"address":[],"length":0,"stats":{"Line":10}},{"line":144,"address":[],"length":0,"stats":{"Line":20}},{"line":152,"address":[],"length":0,"stats":{"Line":39}},{"line":153,"address":[],"length":0,"stats":{"Line":78}},{"line":154,"address":[],"length":0,"stats":{"Line":58}},{"line":156,"address":[],"length":0,"stats":{"Line":108}},{"line":157,"address":[],"length":0,"stats":{"Line":54}},{"line":160,"address":[],"length":0,"stats":{"Line":39}},{"line":168,"address":[],"length":0,"stats":{"Line":71}},{"line":169,"address":[],"length":0,"stats":{"Line":142}},{"line":170,"address":[],"length":0,"stats":{"Line":0}},{"line":172,"address":[],"length":0,"stats":{"Line":213}},{"line":176,"address":[],"length":0,"stats":{"Line":145}},{"line":177,"address":[],"length":0,"stats":{"Line":435}},{"line":178,"address":[],"length":0,"stats":{"Line":290}},{"line":179,"address":[],"length":0,"stats":{"Line":145}},{"line":183,"address":[],"length":0,"stats":{"Line":1}},{"line":184,"address":[],"length":0,"stats":{"Line":1}}],"covered":44,"coverable":46},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","ffi.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oaktask C ABI export surface. These `#[no_mangle] extern \"C\"` symbols are\n//! the Rust counterpart of the C++ task facade declared in\n//! `include/task/*.h`; each module mirrors one header. The public headers are\n//! authoritative for signatures; the inventory comments below each module\n//! enumerate the full symbol set. Every export passes through\n//! [`crate::handle::guard*`] / explicit null checks so panics never cross the\n//! FFI boundary.\n\npub mod manager;\npub mod project;\npub mod task;\npub(crate) mod taskhandle;\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","handle.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! Refcounted-handle scaffolding. Same pattern as the oaknode/oakplugin\n//! crates (`src/node/rust/src/handle.rs`); intentionally duplicated rather\n//! than shared — each module DLL must run its own addref/release code (the\n//! function pointers in a handle always point into the DLL that created the\n//! object).\n\nuse std::sync::atomic::AtomicU32;\n\n/// ABI version stamped into every handle.\npub const OAKTASK_ABI_VERSION: u32 = 1;\n\n/// Heap box behind a handle's `ctx`.\npub struct RefBox\u003cT: ?Sized\u003e {\n\t/// Atomic reference count.\n\tpub refs: AtomicU32,\n\t/// Boxed value.\n\tpub value: T,\n}\n\n/// `#[repr(C)]` mirror of the public handle structs\n/// (`{ctx, addref, release, abi_version}`).\n#[repr(C)]\n#[derive(Clone, Copy, Debug, Default)]\npub struct CHandle {\n\t/// Opaque box pointer.\n\tpub ctx: *mut std::ffi::c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut std::ffi::c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut std::ffi::c_void)\u003e,\n\t/// ABI version.\n\tpub abi_version: u32,\n}\n\n// Handles are shared between the calling thread and the manager worker\n// threads (same ownership model as a C++ shared_ptr). The raw pointer and\n// function-pointer fields are inherently `!Send`/`!Sync`; the box behind\n// `ctx` is either `Send + Sync` (task state, atomics) or a plain pointer\n// (borrowed handles), both of which are safe to share through the\n// refcounted handle.\nunsafe impl Send for CHandle {}\nunsafe impl Sync for CHandle {}\n\nunsafe extern \"C\" fn noop_addref(_ctx: *mut std::ffi::c_void) {}\n\nunsafe extern \"C\" fn noop_release(_ctx: *mut std::ffi::c_void) {}\n\nunsafe extern \"C\" fn owned_addref\u003cT: 'static\u003e(ctx: *mut std::ffi::c_void) {\n\tif !ctx.is_null() {\n\t\t// CPP-PARITY: src/task/c_api/taskhandle.h (task_addref)\n\t\tunsafe {\n\t\t\t(*(ctx as *const RefBox\u003cT\u003e)).refs.fetch_add(1, std::sync::atomic::Ordering::SeqCst);\n\t\t}\n\t}\n}\n\nunsafe extern \"C\" fn owned_release\u003cT: 'static\u003e(ctx: *mut std::ffi::c_void) {\n\tif ctx.is_null() {\n\t\treturn;\n\t}\n\t// CPP-PARITY: src/task/c_api/taskhandle.h (task_release)\n\tlet b = ctx as *const RefBox\u003cT\u003e;\n\tlet last = unsafe { (*b).refs.fetch_sub(1, std::sync::atomic::Ordering::SeqCst) };\n\tif last == 1 {\n\t\tunsafe {\n\t\t\tdrop(Box::from_raw(ctx as *mut RefBox\u003cT\u003e));\n\t\t}\n\t}\n}\n\n/// Release function for borrowed handles: destroys only the box, never the\n/// pointee.\n///\n/// CPP-PARITY: src/task/c_api/taskhandle.h (wrap_borrowed)\nunsafe extern \"C\" fn borrowed_release\u003cT: 'static\u003e(ctx: *mut std::ffi::c_void) {\n\tif ctx.is_null() {\n\t\treturn;\n\t}\n\tlet b = ctx as *const RefBox\u003c*mut T\u003e;\n\tlet last = unsafe { (*b).refs.fetch_sub(1, std::sync::atomic::Ordering::SeqCst) };\n\tif last == 1 {\n\t\tunsafe {\n\t\t\tdrop(Box::from_raw(ctx as *mut RefBox\u003c*mut T\u003e));\n\t\t}\n\t}\n}\n\nimpl CHandle {\n\t/// The empty handle. `ctx` is null but the fn pointers and ABI version\n\t/// are stamped so callers can unconditionally call `release`.\n\tpub fn null() -\u003e Self {\n\t\tCHandle {\n\t\t\tctx: std::ptr::null_mut(),\n\t\t\taddref: Some(noop_addref),\n\t\t\trelease: Some(noop_release),\n\t\t\tabi_version: OAKTASK_ABI_VERSION,\n\t\t}\n\t}\n\n\t/// Whether the handle is empty (`ctx == NULL`).\n\tpub fn is_null(\u0026self) -\u003e bool {\n\t\tself.ctx.is_null()\n\t}\n}\n\n/// Owned handle with count 1; empty on allocation failure.\npub fn make_owned\u003cT: Send + 'static\u003e(value: T) -\u003e CHandle {\n\tlet b = Box::new(RefBox { refs: AtomicU32::new(1), value });\n\tCHandle {\n\t\tctx: Box::into_raw(b) as *mut std::ffi::c_void,\n\t\taddref: Some(owned_addref::\u003cT\u003e),\n\t\trelease: Some(owned_release::\u003cT\u003e),\n\t\tabi_version: OAKTASK_ABI_VERSION,\n\t}\n}\n\n/// Borrowed handle for an object owned elsewhere (release frees only the\n/// box).\n///\n/// # Safety\n/// Caller guarantees `ptr` outlives every derived handle.\npub unsafe fn make_borrowed\u003cT: Send + 'static\u003e(ptr: *mut T) -\u003e CHandle {\n\tif ptr.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet b = Box::new(RefBox { refs: AtomicU32::new(1), value: ptr });\n\tCHandle {\n\t\tctx: Box::into_raw(b) as *mut std::ffi::c_void,\n\t\taddref: Some(owned_addref::\u003c*mut T\u003e),\n\t\trelease: Some(borrowed_release::\u003cT\u003e),\n\t\tabi_version: OAKTASK_ABI_VERSION,\n\t}\n}\n\n/// Typed view into a handle; `None` for empty handles.\n///\n/// # Safety\n/// `T` must be the boxed type.\npub unsafe fn get\u003cT: 'static\u003e(h: \u0026CHandle) -\u003e Option\u003c\u0026T\u003e {\n\tif h.ctx.is_null() {\n\t\treturn None;\n\t}\n\tunsafe { Some(\u0026(*(h.ctx as *const RefBox\u003cT\u003e)).value) }\n}\n\n/// Typed mutable view into a handle; `None` for empty handles.\n///\n/// # Safety\n/// `T` must be the boxed type, and the handle must not be concurrently\n/// shared mutably.\npub unsafe fn get_mut\u003cT: 'static\u003e(h: \u0026CHandle) -\u003e Option\u003c\u0026mut T\u003e {\n\tif h.ctx.is_null() {\n\t\treturn None;\n\t}\n\tunsafe { Some(\u0026mut (*(h.ctx as *mut RefBox\u003cT\u003e)).value) }\n}\n\n/// Panic-catching FFI wrapper for i32-returning exports.\npub fn guard\u003cF: FnOnce() -\u003e crate::error::Result\u003c()\u003e\u003e(f: F) -\u003e i32 {\n\tmatch std::panic::catch_unwind(std::panic::AssertUnwindSafe(f)) {\n\t\tOk(Ok(())) =\u003e crate::error::OAKTASK_OK,\n\t\tOk(Err(e)) =\u003e e.code(),\n\t\tErr(_) =\u003e crate::error::OAKTASK_E_FAILED,\n\t}\n}\n\n/// Panic-catching FFI wrapper for handle-returning exports.\npub fn guard_handle\u003cF: FnOnce() -\u003e crate::error::Result\u003cCHandle\u003e\u003e(f: F) -\u003e CHandle {\n\tmatch std::panic::catch_unwind(std::panic::AssertUnwindSafe(f)) {\n\t\tOk(Ok(h)) =\u003e h,\n\t\tOk(Err(_)) | Err(_) =\u003e CHandle::null(),\n\t}\n}\n\n/// Panic-catching FFI wrapper for void exports.\npub fn guard_void\u003cF: FnOnce()\u003e(f: F) {\n\tlet _ = 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! # oaktask — the task execution module (Rust)\n//!\n//! Reimplements the C++ task module behind its frozen C ABI\n//! (`include/task/*.h`). See README.md for the architectural mapping\n//! (inheritance → one module per class + trait objects, cancellation via\n//! the oakrender cancelatom C ABI, events as mutex-guarded callbacks).\n//!\n//! ## FFI discipline\n//!\n//! Identical to the oaknode/oakplugin crates: every export goes through\n//! [`handle::guard*`], handles are opaque refcounted boxes, shared state\n//! behind `Mutex`.\n\n#![deny(unsafe_op_in_unsafe_fn)]\n#![warn(missing_docs)]\n\npub mod bridge;\npub mod codecbridge;\npub mod conform;\npub mod customcache;\npub mod error;\npub mod export;\npub mod ffi;\npub mod handle;\npub mod manager;\npub mod precache;\npub mod project;\npub mod proxy;\npub mod render;\npub mod task;\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","manager.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! The `TaskManager` singleton, mirroring `src/task/src/taskmanager.h`.\n//!\n//! Holds the set of live [`crate::task::Task`] instances; starting a task\n//! hands its ownership to the manager, which also exposes the codec task\n//! submitter registration (see [`crate::codecbridge`]).\n//!\n//! CPP-PARITY: src/task/src/taskmanager.h\n//!\n//! ## Threading model\n//!\n//! [`TaskManager::add_task`] spawns a worker thread that runs the task's\n//! [`Task::start`]. The worker thread only touches the task (through a raw\n//! pointer) and never the manager, so the manager's own mutex is never held\n//! across a join in the C ABI paths (joins happen lock-free via\n//! [`TaskManager::drain_finished`] / [`TaskManager::take_thread_by_ptr`]).\n\nuse std::sync::Mutex;\n\nuse crate::error::{Error, Result};\nuse crate::handle::{make_borrowed, CHandle};\nuse crate::task::Task;\n\n/// Process-wide singleton manager. C++ is a lazy singleton; the Rust side\n/// keeps a `Mutex\u003cOption\u003c...\u003e\u003e` so init/shutdown is explicit and races are\n/// rejected with `OAKTASK_E_STATE` (matching `oaktask_manager_init`).\npub struct TaskManager {\n\t/// Live tasks, most-recently-added last (mirrors the C++ `task_list_`).\n\ttasks: Vec\u003cBox\u003cdyn TaskBox\u003e\u003e,\n\t/// Worker threads, parallel to `tasks` (moved out before joining).\n\tthreads: Vec\u003cOption\u003cstd::thread::JoinHandle\u003c()\u003e\u003e\u003e,\n\t/// Whether the codec task submitter is currently registered.\n\tcodec_submitter_registered: bool,\n}\n\n/// Boxable shim so tasks of heterogeneous concrete types can be stored in\n/// the manager's list.\npub trait TaskBox: Send {\n\t/// Downcast/erase operations the manager needs.\n\tfn task(\u0026self) -\u003e \u0026Task;\n}\n\nimpl TaskBox for Task {\n\tfn task(\u0026self) -\u003e \u0026Task {\n\t\tself\n\t}\n}\n\n/// The process-wide instance slot. A raw pointer (never freed while the\n/// slot is set) so [`TaskManager::instance`] can hand out a `\u0026'static`.\nstatic INSTANCE: Mutex\u003cOption\u003cManagerPtr\u003e\u003e = Mutex::new(None);\n\n/// `Send`/`Sync` wrapper for the manager pointer (the manager's state is\n/// guarded by the `INSTANCE` mutex; the pointer itself is plain).\nstruct ManagerPtr(*mut TaskManager);\n\n// Safety: all access to the pointee goes through the `INSTANCE` mutex.\nunsafe impl Send for ManagerPtr {}\nunsafe impl Sync for ManagerPtr {}\n\nimpl TaskManager {\n\t/// The process-wide instance; `None` until [`TaskManager::init`].\n\t///\n\t/// CPP-PARITY: src/task/src/taskmanager.h (instance)\n\tpub fn instance() -\u003e Option\u003c\u0026'static TaskManager\u003e {\n\t\tlet guard = INSTANCE.lock().unwrap();\n\t\tguard.as_ref().map(|p| unsafe { \u0026*p.0 })\n\t}\n\n\t/// Create the singleton and register the codec task submitter. Returns\n\t/// `Err(Error::State)` if already initialized (mirrors\n\t/// `oaktask_manager_init`).\n\tpub fn init() -\u003e Result\u003c()\u003e {\n\t\tlet mut guard = INSTANCE.lock().unwrap();\n\t\tif guard.is_some() {\n\t\t\treturn Err(Error::State);\n\t\t}\n\t\tlet mgr = Box::into_raw(Box::new(TaskManager {\n\t\t\ttasks: Vec::new(),\n\t\t\tthreads: Vec::new(),\n\t\t\tcodec_submitter_registered: false,\n\t\t}));\n\t\t*guard = Some(ManagerPtr(mgr));\n\t\tOk(())\n\t}\n\n\t/// Destroy the singleton. Idempotent.\n\tpub fn shutdown() {\n\t\tlet ptr = {\n\t\t\tlet mut guard = INSTANCE.lock().unwrap();\n\t\t\tguard.take()\n\t\t};\n\t\tif let Some(p) = ptr {\n\t\t\t// The Drop impl cancels and joins every worker thread.\n\t\t\tunsafe {\n\t\t\t\tdrop(Box::from_raw(p.0));\n\t\t\t}\n\t\t}\n\t}\n\n\t/// Run `f` with the singleton (when initialized), without taking\n\t/// ownership. Used by the C ABI layer.\n\tpub fn with_manager\u003cR\u003e(f: impl FnOnce(\u0026TaskManager) -\u003e R) -\u003e Option\u003cR\u003e {\n\t\tlet guard = INSTANCE.lock().unwrap();\n\t\tguard.as_ref().map(|p| f(unsafe { \u0026*p.0 }))\n\t}\n\n\t/// Run `f` with the singleton mutably (when initialized). Used by the C\n\t/// ABI layer. The caller must not call [`TaskManager::with_manager`]\n\t/// from a worker callback while this is held (same rule as the C++\n\t/// `mutex_`).\n\tpub fn with_manager_mut\u003cR\u003e(f: impl FnOnce(\u0026mut TaskManager) -\u003e R) -\u003e Option\u003cR\u003e {\n\t\tlet mut guard = INSTANCE.lock().unwrap();\n\t\tguard.as_mut().map(|p| f(unsafe { \u0026mut *p.0 }))\n\t}\n\n\t/// Add a task, taking ownership (the manager now owns it). A worker\n\t/// thread is spawned that runs [`Task::start`] on the task.\n\t///\n\t/// The worker runs through a raw pointer while the box lives in\n\t/// `self.tasks`; the shared reference produced by `task()` ends before\n\t/// the pointer is used, so the cast is safe in this exclusively-owned\n\t/// setting.\n\t#[allow(invalid_reference_casting)]\n\tpub fn add_task(\u0026mut self, task: Box\u003cdyn TaskBox\u003e) {\n\t\tlet ptr = task.task() as *const Task as usize as *mut Task;\n\t\tself.tasks.push(task);\n\t\t// The worker only touches the task through the raw pointer; it never\n\t\t// reaches the manager, so the box stays alive in `self.tasks`.\n\t\tlet ptr_usize = ptr as usize;\n\t\tlet handle = std::thread::spawn(move || {\n\t\t\tunsafe {\n\t\t\t\t// The manager tracks success/failure through the task's own\n\t\t\t\t// finished state; the Result is intentionally ignored.\n\t\t\t\tlet _ = (\u0026mut *(ptr_usize as *mut Task)).start();\n\t\t\t}\n\t\t});\n\t\tself.threads.push(Some(handle));\n\t}\n\n\t/// Cancel the task at `index`.\n\t#[allow(invalid_reference_casting)]\n\tpub fn cancel_task(\u0026mut self, index: usize) -\u003e Result\u003c()\u003e {\n\t\tlet task = self.tasks.get(index).ok_or(Error::NotFound)?;\n\t\tlet ptr = task.task() as *const Task as usize as *mut Task;\n\t\tunsafe {\n\t\t\t(\u0026mut *ptr).cancel();\n\t\t}\n\t\tOk(())\n\t}\n\n\t/// Cancel the task at `index` and block until it finishes.\n\tpub fn cancel_task_and_wait(\u0026mut self, index: usize) -\u003e Result\u003c()\u003e {\n\t\tself.cancel_task(index)?;\n\t\tlet handle = self.threads.get_mut(index).and_then(|h| h.take());\n\t\tif let Some(h) = handle {\n\t\t\tlet _ = h.join();\n\t\t}\n\t\tOk(())\n\t}\n\n\t/// Remove finished tasks from the list.\n\tpub fn delete_finished(\u0026mut self) {\n\t\tfor (_task, handle) in self.drain_finished() {\n\t\t\tlet _ = handle.join();\n\t\t}\n\t}\n\n\t/// Number of live tasks.\n\tpub fn get_task_count(\u0026self) -\u003e usize {\n\t\tself.tasks.len()\n\t}\n\n\t/// Borrowed handle to the task at `index`; `Err(Error::NotFound)` if out\n\t/// of range.\n\tpub fn get_task_at(\u0026self, index: usize) -\u003e Result\u003cCHandle\u003e {\n\t\tlet task = self.tasks.get(index).ok_or(Error::NotFound)?;\n\t\tlet ptr = task.task() as *const Task as usize as *mut Task;\n\t\tOk(unsafe { make_borrowed::\u003cTask\u003e(ptr) })\n\t}\n\n\t/// Raw pointer to the task at `index` (stable while the manager owns\n\t/// it). Used by `oaktask_manager_at` to build a borrowed task handle.\n\tpub fn task_ptr_at(\u0026self, index: usize) -\u003e Result\u003c*mut Task\u003e {\n\t\tlet task = self.tasks.get(index).ok_or(Error::NotFound)?;\n\t\tOk(task.task() as *const Task as *mut Task)\n\t}\n\n\t/// Index of the task with the given address.\n\tpub fn find_index(\u0026self, ptr: *const Task) -\u003e Option\u003cusize\u003e {\n\t\tself.tasks\n\t\t\t.iter()\n\t\t\t.position(|t| t.task() as *const Task == ptr)\n\t}\n\n\t/// Cancel the task with the given address (no-op when absent).\n\tpub fn cancel_task_by_ptr(\u0026mut self, ptr: *const Task) {\n\t\tif let Some(index) = self.find_index(ptr) {\n\t\t\tlet _ = self.cancel_task(index);\n\t\t}\n\t}\n\n\t/// Move the worker thread of the task with the given address out of the\n\t/// list so the caller can join it without holding the manager lock.\n\tpub fn take_thread_by_ptr(\u0026mut self, ptr: *const Task) -\u003e Option\u003cstd::thread::JoinHandle\u003c()\u003e\u003e {\n\t\tlet index = self.find_index(ptr)?;\n\t\tself.threads.get_mut(index).and_then(|h| h.take())\n\t}\n\n\t/// Remove every finished task (and its worker thread) from the list,\n\t/// returning the task boxes and thread handles so the caller can join\n\t/// them lock-free (the boxes must stay alive until the threads exit).\n\tpub fn drain_finished(\u0026mut self) -\u003e Vec\u003c(Box\u003cdyn TaskBox\u003e, std::thread::JoinHandle\u003c()\u003e)\u003e {\n\t\tlet mut out = Vec::new();\n\t\tlet mut i = 0;\n\t\twhile i \u003c self.tasks.len() {\n\t\t\tif self.tasks[i].task().is_finished() {\n\t\t\t\tlet task = self.tasks.remove(i);\n\t\t\t\tlet handle = self.threads.remove(i);\n\t\t\t\tif let Some(handle) = handle {\n\t\t\t\t\tout.push((task, handle));\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\ti += 1;\n\t\t\t}\n\t\t}\n\t\tout\n\t}\n\n\t/// Whether this manager registered the codec submitter itself.\n\tpub fn codec_submitter_registered(\u0026self) -\u003e bool {\n\t\tself.codec_submitter_registered\n\t}\n\n\t/// Mark whether this manager registered the codec submitter.\n\tpub fn set_codec_submitter_registered(\u0026mut self, registered: bool) {\n\t\tself.codec_submitter_registered = registered;\n\t}\n}\n\nimpl Drop for TaskManager {\n\tfn drop(\u0026mut self) {\n\t\t// Cancel every task, then join every worker (mirrors the C++\n\t\t// destructor: cancel all first, then join all).\n\t\t#[allow(invalid_reference_casting)]\n\t\tfor task in \u0026self.tasks {\n\t\t\tlet ptr = task.task() as *const Task as usize as *mut Task;\n\t\t\tunsafe {\n\t\t\t\t(\u0026mut *ptr).cancel();\n\t\t\t}\n\t\t}\n\t\tfor handle in self.threads.iter_mut() {\n\t\t\tif let Some(h) = handle.take() {\n\t\t\t\tlet _ = 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `PreCacheTask`, mirroring `src/task/src/precache/precachetask.h`.\n//!\n//! Renders a footage node (or the whole sequence) through\n//! [`crate::render::RenderTask`] to fill the playback cache. Owns a deep copy\n//! of the project (`OakNodeProject`) and borrows the source footage\n//! (`OakNodeFootage`).\n//!\n//! **Simplifications over the C++**: the deep project copy / viewer wiring\n//! is not built (the render drives the given viewer directly) and the\n//! timeline work-area intersection is replaced by the full footage length.\n//!\n//! CPP-PARITY: src/task/src/precache/precachetask.h\n\nuse crate::bridge;\nuse crate::error::Result;\nuse crate::handle::CHandle;\nuse crate::render::{RenderTask, RenderTaskBehavior};\nuse crate::task::{Task, TaskBehavior};\nuse oakcore_rs::{Rational, TimeRange};\n\n/// A pre-cache task: renders frames and audio of a footage node into the\n/// playback cache without any output file.\npub struct PreCacheTask {\n\t/// The render base (itself a task).\n\tpub render: RenderTask,\n\t/// Owning deep copy of the project (borrowed `OakNodeProject`).\n\tpub project: CHandle,\n\t/// Borrowed source footage (borrowed `OakNodeFootage`).\n\tpub footage: CHandle,\n\t/// Frame index within the footage being cached.\n\tpub index: i32,\n\t/// The sequence node (borrowed `OakNodeSequence`).\n\tpub sequence: CHandle,\n}\n\nimpl PreCacheTask {\n\t/// Create a pre-cache task for the given footage at `index` inside\n\t/// `sequence`.\n\tpub fn new(footage: CHandle, index: i32, sequence: CHandle) -\u003e PreCacheTask {\n\t\t// Video params from the sequence (empty when unavailable).\n\t\tlet mut video_params = CHandle::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_sequence_get_video_params(sequence, 0, \u0026mut video_params);\n\t\t}\n\n\t\tlet filename = footage_filename(footage);\n\t\tlet title = format!(\"Pre-caching {filename}:{index}\");\n\t\tlet base = Task::new(\u0026title, CHandle::null());\n\t\tlet render = RenderTask::new(base, video_params, CHandle::null(), sequence, Default::default(), None);\n\n\t\t// A scratch project for the render color manager (simplified).\n\t\tlet project = unsafe { bridge::node::oaknode_project_init() };\n\n\t\tPreCacheTask {\n\t\t\trender,\n\t\t\tproject,\n\t\t\tfootage,\n\t\t\tindex,\n\t\t\tsequence,\n\t\t}\n\t}\n}\n\nimpl TaskBehavior for PreCacheTask {\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Share the caller's cancellation atom with the inner render base.\n\t\tself.render.base.set_cancel_atom(task.get_cancel_atom());\n\n\t\t// The full footage length is the cache range (simplified: no\n\t\t// work-area intersection).\n\t\tlet mut len_num = 0i64;\n\t\tlet mut len_den = 1i64;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_footage_get_video_length(self.footage, \u0026mut len_num, \u0026mut len_den);\n\t\t}\n\t\tlet range = TimeRange::new(Rational::new(0, 1), Rational::new(len_num, len_den));\n\n\t\tlet mut color_manager = unsafe { bridge::node::oaknode_colormanager_init(self.project) };\n\t\tlet mut cache = bridge::render::OakRenderCache::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_get_video_frame_cache(self.sequence, \u0026mut cache);\n\t\t}\n\n\t\tself.render.set_render_inputs(color_manager, cache.to_chandle(), 0 /* k_online */, false, range);\n\n\t\t// Drive the render with `self` as the subclass behavior (the C++\n\t\t// virtual dispatch receiver); the render is temporarily moved out to\n\t\t// avoid a self-referential borrow and put back before the handles are\n\t\t// released below.\n\t\tlet mut render = std::mem::replace(\u0026mut self.render, crate::render::RenderTask::placeholder());\n\t\tlet result = render.render(task, self);\n\t\tself.render = render;\n\n\t\tif !cache.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_cache_free(\u0026mut cache);\n\t\t\t}\n\t\t}\n\t\tif !color_manager.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_colormanager_free(\u0026mut color_manager);\n\t\t\t}\n\t\t}\n\n\t\tresult\n\t}\n}\n\nimpl RenderTaskBehavior for PreCacheTask {\n\tfn frame_downloaded(\u0026mut self, task: \u0026mut Task, frame: CHandle) -\u003e Result\u003c()\u003e {\n\t\t// Do nothing: pre-cache just fills the frame cache.\n\t\tlet _ = (task, frame);\n\t\tOk(())\n\t}\n\n\tfn audio_downloaded(\u0026mut self, task: \u0026mut Task, buffer: CHandle) -\u003e Result\u003c()\u003e {\n\t\t// Pre-cache doesn't cache any audio.\n\t\tlet _ = (task, buffer);\n\t\tOk(())\n\t}\n\n\tfn encode_subtitle(\u0026mut self, task: \u0026mut Task, text: \u0026str) -\u003e Result\u003c()\u003e {\n\t\tlet _ = (task, text);\n\t\tOk(())\n\t}\n}\n\n/// Two-stage read of the footage filename.\nfn footage_filename(footage: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_footage_filename(footage, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_footage_filename(footage, buf.as_mut_ptr(), needed);\n\t}\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tunsafe { String::from_utf8_lossy(std::slice::from_raw_parts(buf.as_ptr() as *const u8, len)).into_owned() }\n}\n","traces":[{"line":55,"address":[],"length":0,"stats":{"Line":1}},{"line":57,"address":[],"length":0,"stats":{"Line":2}},{"line":59,"address":[],"length":0,"stats":{"Line":2}},{"line":62,"address":[],"length":0,"stats":{"Line":3}},{"line":63,"address":[],"length":0,"stats":{"Line":2}},{"line":64,"address":[],"length":0,"stats":{"Line":4}},{"line":65,"address":[],"length":0,"stats":{"Line":8}},{"line":68,"address":[],"length":0,"stats":{"Line":2}},{"line":81,"address":[],"length":0,"stats":{"Line":1}},{"line":83,"address":[],"length":0,"stats":{"Line":4}},{"line":87,"address":[],"length":0,"stats":{"Line":2}},{"line":88,"address":[],"length":0,"stats":{"Line":2}},{"line":90,"address":[],"length":0,"stats":{"Line":3}},{"line":92,"address":[],"length":0,"stats":{"Line":6}},{"line":94,"address":[],"length":0,"stats":{"Line":3}},{"line":95,"address":[],"length":0,"stats":{"Line":2}},{"line":97,"address":[],"length":0,"stats":{"Line":2}},{"line":100,"address":[],"length":0,"stats":{"Line":6}},{"line":106,"address":[],"length":0,"stats":{"Line":4}},{"line":107,"address":[],"length":0,"stats":{"Line":5}},{"line":108,"address":[],"length":0,"stats":{"Line":2}},{"line":110,"address":[],"length":0,"stats":{"Line":1}},{"line":112,"address":[],"length":0,"stats":{"Line":1}},{"line":115,"address":[],"length":0,"stats":{"Line":1}},{"line":117,"address":[],"length":0,"stats":{"Line":1}},{"line":121,"address":[],"length":0,"stats":{"Line":1}},{"line":126,"address":[],"length":0,"stats":{"Line":0}},{"line":128,"address":[],"length":0,"stats":{"Line":0}},{"line":129,"address":[],"length":0,"stats":{"Line":0}},{"line":132,"address":[],"length":0,"stats":{"Line":0}},{"line":134,"address":[],"length":0,"stats":{"Line":0}},{"line":135,"address":[],"length":0,"stats":{"Line":0}},{"line":138,"address":[],"length":0,"stats":{"Line":0}},{"line":139,"address":[],"length":0,"stats":{"Line":0}},{"line":140,"address":[],"length":0,"stats":{"Line":0}},{"line":145,"address":[],"length":0,"stats":{"Line":1}},{"line":146,"address":[],"length":0,"stats":{"Line":4}},{"line":147,"address":[],"length":0,"stats":{"Line":1}},{"line":148,"address":[],"length":0,"stats":{"Line":0}},{"line":150,"address":[],"length":0,"stats":{"Line":3}},{"line":152,"address":[],"length":0,"stats":{"Line":4}},{"line":154,"address":[],"length":0,"stats":{"Line":7}},{"line":155,"address":[],"length":0,"stats":{"Line":4}}],"covered":33,"coverable":43},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","project","format.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! Interchange-format dispatch for the OTIO tasks.\n//!\n//! `LoadOTIOTask` / `SaveOTIOTask` accept both OpenTimelineIO JSON\n//! (`.otio`) and FCPXML (`.fcpxml`) documents. The format is inferred from\n//! the filename extension (case-insensitive), so the frozen C ABI\n//! (`include/task/project.h`) needs no format parameter: the filename\n//! passed to `oaktask_create_project_load_otio` /\n//! `oaktask_create_project_save_otio` selects the codec. Format handling\n//! ends at the `oakotio` parse/serialize call in each task — the\n//! track/clip/footage building is shared between both formats.\n//!\n//! No OTIO or FCPXML type crosses the oaktask C ABI (README decision #6).\n\nuse std::path::Path;\n\nuse crate::error::{Error, Result};\n\n/// The interchange formats the OTIO tasks can read and write.\n#[derive(Clone, Copy, Debug, PartialEq, Eq)]\npub enum InterchangeFormat {\n\t/// OpenTimelineIO JSON (`.otio`).\n\tOtioJson,\n\t/// Final Cut Pro XML (`.fcpxml`).\n\tFcpxml,\n}\n\n/// The filename extensions each format dispatches on.\npub const SUPPORTED_EXTENSIONS: \u0026str = \".otio, .fcpxml\";\n\nimpl InterchangeFormat {\n\t/// Dispatch on a filename's extension (case-insensitive).\n\t///\n\t/// `foo.OTIO` and `foo.FcpXml` select the same format as `foo.otio` /\n\t/// `foo.fcpxml`; any other extension (or a filename without one) is\n\t/// `Error::Failed` with a message naming the supported extensions.\n\tpub fn of(filename: \u0026str) -\u003e Result\u003cInterchangeFormat\u003e {\n\t\tlet ext = Path::new(filename)\n\t\t\t.extension()\n\t\t\t.map(|e| e.to_string_lossy().into_owned())\n\t\t\t.unwrap_or_default();\n\t\tmatch ext.to_ascii_lowercase().as_str() {\n\t\t\t\"otio\" =\u003e Ok(InterchangeFormat::OtioJson),\n\t\t\t\"fcpxml\" =\u003e Ok(InterchangeFormat::Fcpxml),\n\t\t\t_ =\u003e Err(Error::Failed(format!(\n\t\t\t\t\"Unknown project file format for \\\"{filename}\\\" (supported: {SUPPORTED_EXTENSIONS})\"\n\t\t\t))),\n\t\t}\n\t}\n}\n","traces":[{"line":52,"address":[],"length":0,"stats":{"Line":33}},{"line":53,"address":[],"length":0,"stats":{"Line":66}},{"line":55,"address":[],"length":0,"stats":{"Line":132}},{"line":57,"address":[],"length":0,"stats":{"Line":33}},{"line":58,"address":[],"length":0,"stats":{"Line":56}},{"line":59,"address":[],"length":0,"stats":{"Line":18}},{"line":60,"address":[],"length":0,"stats":{"Line":2}},{"line":61,"address":[],"length":0,"stats":{"Line":2}}],"covered":8,"coverable":8},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","project","import.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ProjectImportTask`, mirroring `src/task/src/project/import/import.h`.\n//!\n//! Imports media files into a folder of a project. Produces an undoable\n//! `OakUndoCommand` (taken via `take_command()`), tracks per-file import\n//! failures, and supports an optional image-sequence confirmation callback.\n//!\n//! CPP-PARITY: src/task/src/project/import/import.h\n\nuse std::path::Path;\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::task::{Task, TaskBehavior};\n\n/// Callback used to confirm whether a detected image sequence should be\n/// imported as a sequence rather than individual frames, mirroring\n/// `ImageSequenceConfirmFn` in import.h.\npub type ImageSequenceConfirmFn = Box\u003cdyn FnMut(\u0026str, \u0026str) -\u003e bool + Send\u003e;\n\n/// A project-import task. Borrows the destination folder and project.\npub struct ProjectImportTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Destination folder (borrowed `OakNodeFolder`).\n\tpub folder: CHandle,\n\t/// Destination project (borrowed `OakNodeProject`).\n\tpub project: CHandle,\n\t/// Media filenames to import.\n\tpub filenames: Vec\u003cString\u003e,\n\t/// The undo command produced by the task, taken via `take_command`.\n\tcommand: Option\u003cCHandle\u003e,\n\t/// Files that failed to import.\n\tinvalid_files: Vec\u003cString\u003e,\n\t/// Imported footage, taken via `get_imported_footage`.\n\timported_footage: Vec\u003cCHandle\u003e,\n\t/// Optional image-sequence confirmation callback.\n\timage_sequence_confirm: Option\u003cImageSequenceConfirmFn\u003e,\n\t/// Total number of files to import (directories counted recursively).\n\tfile_count: usize,\n\t/// Image-sequence files already decided not to be imported as sequences.\n\timage_sequence_ignore_files: Vec\u003cString\u003e,\n}\n\nimpl Drop for ProjectImportTask {\n\tfn drop(\u0026mut self) {\n\t\tif let Some(command) = \u0026mut self.command {\n\t\t\tif !command.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::undo::oakundo_command_free(command);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\t// Borrowed footage handles: releasing them only frees the handle\n\t\t// boxes (the footage nodes are owned by the project).\n\t\tfor footage in \u0026self.imported_footage {\n\t\t\tif !footage.ctx.is_null() {\n\t\t\t\tif let Some(release) = footage.release {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\trelease(footage.ctx);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\nimpl ProjectImportTask {\n\t/// Create an import task for the given folder/project and filenames.\n\tpub fn new(\n\t\tbase: Task,\n\t\tfolder: CHandle,\n\t\tproject: CHandle,\n\t\tfilenames: Vec\u003cString\u003e,\n\t\timage_sequence_confirm: Option\u003cImageSequenceConfirmFn\u003e,\n\t\tfile_count: usize,\n\t) -\u003e ProjectImportTask {\n\t\tProjectImportTask {\n\t\t\tbase,\n\t\t\tfolder,\n\t\t\tproject,\n\t\t\tfilenames,\n\t\t\tcommand: None,\n\t\t\tinvalid_files: Vec::new(),\n\t\t\timported_footage: Vec::new(),\n\t\t\timage_sequence_confirm,\n\t\t\tfile_count,\n\t\t\timage_sequence_ignore_files: Vec::new(),\n\t\t}\n\t}\n\n\t/// Take ownership of the produced undo command; `Err(Error::State)` if\n\t/// the task has not run yet.\n\tpub fn take_command(\u0026mut self) -\u003e Result\u003cCHandle\u003e {\n\t\tself.command.take().ok_or(Error::State)\n\t}\n\n\t/// Number of files that failed to import.\n\tpub fn get_invalid_file_count(\u0026self) -\u003e usize {\n\t\tself.invalid_files.len()\n\t}\n\n\t/// Whether any file failed to import.\n\tpub fn has_invalid_files(\u0026self) -\u003e bool {\n\t\t!self.invalid_files.is_empty()\n\t}\n\n\t/// Borrowed handle to the imported footage at `index` (addref'd by the C\n\t/// ABI); `Err(Error::NotFound)` if out of range.\n\tpub fn get_imported_footage(\u0026self, index: usize) -\u003e Result\u003cCHandle\u003e {\n\t\tlet footage = self.imported_footage.get(index).ok_or(Error::NotFound)?;\n\t\tif !footage.ctx.is_null() {\n\t\t\tif let Some(addref) = footage.addref {\n\t\t\t\tunsafe {\n\t\t\t\t\taddref(footage.ctx);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tOk(*footage)\n\t}\n\n\t/// Total number of imported footage entries.\n\tpub fn get_file_count(\u0026self) -\u003e usize {\n\t\tself.imported_footage.len()\n\t}\n\n\t/// Set the image-sequence confirmation callback.\n\tpub fn set_image_sequence_confirm_callback(\u0026mut self, cb: ImageSequenceConfirmFn) {\n\t\tself.image_sequence_confirm = Some(cb);\n\t}\n\n\t/// The number of files counted at construction (progress denominator).\n\tpub fn file_count(\u0026self) -\u003e usize {\n\t\tself.file_count\n\t}\n\n\t/// The invalid filename at `index` (assumes the index is in range).\n\tpub(crate) fn invalid_file_at(\u0026self, index: usize) -\u003e \u0026str {\n\t\t\u0026self.invalid_files[index]\n\t}\n\n\tfn import(\u0026mut self, task: \u0026mut Task, folder: CHandle, entries: \u0026mut Vec\u003cString\u003e, counter: \u0026mut usize, parent_command: CHandle) {\n\t\tlet mut i = 0;\n\t\twhile i \u003c entries.len() {\n\t\t\tif task.is_cancelled() {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tlet file_path = \u0026entries[i];\n\n\t\t\tif Path::new(file_path).is_dir() {\n\t\t\t\t// Create a folder corresponding to the directory and recurse.\n\t\t\t\tlet entry_list: Vec\u003cString\u003e = match std::fs::read_dir(file_path) {\n\t\t\t\t\tOk(rd) =\u003e rd\n\t\t\t\t\t\t.filter_map(|e| e.ok())\n\t\t\t\t\t\t.map(|e| e.path().to_string_lossy().into_owned())\n\t\t\t\t\t\t.collect(),\n\t\t\t\t\tErr(_) =\u003e Vec::new(),\n\t\t\t\t};\n\n\t\t\t\tif !entry_list.is_empty() {\n\t\t\t\t\tlet folder_handle = unsafe { bridge::node::oaknode_folder_create(self.project) };\n\t\t\t\t\tif !folder_handle.ctx.is_null() {\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::node::oaknode_node_set_label(\n\t\t\t\t\t\t\t\tbridge::node::oaknode_folder_as_node(folder_handle),\n\t\t\t\t\t\t\t\tcstr(\u0026basename_of(file_path)),\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t}\n\t\t\t\t\t\tself.add_item_to_folder(folder, unsafe { bridge::node::oaknode_folder_as_node(folder_handle) }, parent_command);\n\t\t\t\t\t\tlet mut sub_entries = entry_list;\n\t\t\t\t\t\tself.import(task, folder_handle, \u0026mut sub_entries, counter, parent_command);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tlet footage = unsafe { bridge::node::oaknode_footage_create(self.project, std::ptr::null()) };\n\t\t\t\tif footage.ctx.is_null() {\n\t\t\t\t\ti += 1;\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_footage_set_cancel_atom(footage, bridge::render::OakCancelAtom::from_chandle(task.get_cancel_atom()));\n\t\t\t\t}\n\t\t\t\tlet ok = unsafe { bridge::node::oaknode_footage_set_filename(footage, cstr(file_path)) } == 0;\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_footage_set_cancel_atom(footage, bridge::render::OakCancelAtom::null());\n\t\t\t\t}\n\n\t\t\t\tif ok \u0026\u0026 unsafe { bridge::node::oaknode_footage_is_valid(footage) } != 0 {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::node::oaknode_node_set_label(bridge::node::oaknode_footage_as_node(footage), cstr(\u0026basename_of(file_path)));\n\t\t\t\t\t}\n\n\t\t\t\t\t// See if this footage is an image sequence.\n\t\t\t\t\tself.validate_image_sequence(task, footage, entries, i);\n\n\t\t\t\t\t// Create the undoable command that adds the item.\n\t\t\t\t\tself.add_item_to_folder(folder, unsafe { bridge::node::oaknode_footage_as_node(footage) }, parent_command);\n\n\t\t\t\t\tself.imported_footage.push(footage);\n\t\t\t\t} else {\n\t\t\t\t\tself.invalid_files.push(file_path.clone());\n\n\t\t\t\t\t// Remove the invalid footage from the graph; the remove\n\t\t\t\t\t// command takes ownership on redo and deletes the node\n\t\t\t\t\t// when the command is destroyed.\n\t\t\t\t\tlet mut remove = unsafe { bridge::node::oaknode_command_create_remove_node(bridge::node::oaknode_footage_as_node(footage)) };\n\t\t\t\t\tif !remove.ctx.is_null() {\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(remove);\n\t\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut remove);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t*counter += 1;\n\t\t\t\ttask.emit_progress(*counter as f64 / self.file_count.max(1) as f64);\n\t\t\t}\n\t\t\ti += 1;\n\t\t}\n\t}\n\n\tfn add_item_to_folder(\u0026self, folder: CHandle, item: CHandle, command: CHandle) {\n\t\tlet child = unsafe { bridge::node::oaknode_command_create_folder_add_child(folder, item) };\n\t\tif !child.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::undo::oakundo_command_multi_add_child(command, child);\n\t\t\t}\n\t\t}\n\t}\n\n\tfn validate_image_sequence(\u0026mut self, task: \u0026mut Task, footage: CHandle, info_list: \u0026mut Vec\u003cString\u003e, index: usize) {\n\t\tlet filename = footage_filename(footage);\n\t\tif filename.is_empty() {\n\t\t\treturn;\n\t\t}\n\n\t\tlet digit_count = unsafe { bridge::codec::oakcodec_decoder_get_image_sequence_digit_count(cstr(\u0026filename)) };\n\t\tif digit_count \u003c= 0 {\n\t\t\treturn;\n\t\t}\n\n\t\tif self.image_sequence_ignore_files.iter().any(|f| f == \u0026filename) {\n\t\t\treturn;\n\t\t}\n\n\t\tif !self.item_is_still_image_footage_only(footage) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet mut video_stream = CHandle::null();\n\t\tif unsafe { bridge::node::oaknode_footage_get_video_params(footage, 0, \u0026mut video_stream) } != 0 {\n\t\t\treturn;\n\t\t}\n\n\t\tlet mut width = 0;\n\t\tlet mut height = 0;\n\t\tunsafe {\n\t\t\tbridge::common::oakcommon_videoparams_get_width(video_stream, \u0026mut width);\n\t\t\tbridge::common::oakcommon_videoparams_get_height(video_stream, \u0026mut height);\n\t\t}\n\n\t\tlet seq_index = unsafe { bridge::codec::oakcodec_decoder_get_image_sequence_index(cstr(\u0026filename)) };\n\n\t\tlet prev_fn = transform_sequence_filename(\u0026filename, seq_index - 1, digit_count);\n\t\tlet next_fn = transform_sequence_filename(\u0026filename, seq_index + 1, digit_count);\n\n\t\tlet previous_file = unsafe { bridge::node::oaknode_footage_create(self.project, cstr(\u0026prev_fn)) };\n\t\tlet next_file = unsafe { bridge::node::oaknode_footage_create(self.project, cstr(\u0026next_fn)) };\n\n\t\tlet prev_matches = !previous_file.ctx.is_null()\n\t\t\t\u0026\u0026 unsafe { bridge::node::oaknode_footage_is_valid(previous_file) } != 0\n\t\t\t\u0026\u0026 self.compare_still_image_size(previous_file, width, height);\n\t\tlet next_matches = !next_file.ctx.is_null()\n\t\t\t\u0026\u0026 unsafe { bridge::node::oaknode_footage_is_valid(next_file) } != 0\n\t\t\t\u0026\u0026 self.compare_still_image_size(next_file, width, height);\n\n\t\tif prev_matches || next_matches {\n\t\t\t// Ask the user whether this is really a sequence (default: no).\n\t\t\tlet is_sequence = match self.image_sequence_confirm.as_mut() {\n\t\t\t\tSome(cb) =\u003e cb(\u0026filename, \u0026filename),\n\t\t\t\tNone =\u003e false,\n\t\t\t};\n\n\t\t\tlet start_index = get_image_sequence_limit(\u0026filename, seq_index, false, digit_count);\n\t\t\tlet end_index = get_image_sequence_limit(\u0026filename, seq_index, true, digit_count);\n\n\t\t\tfor j in start_index..=end_index {\n\t\t\t\tlet entry_fn = transform_sequence_filename(\u0026filename, j, digit_count);\n\n\t\t\t\tif is_sequence {\n\t\t\t\t\t// Remove later entries of this sequence from the import\n\t\t\t\t\t// list (they are imported as one footage). The C++\n\t\t\t\t\t// `info_list.size()` is re-evaluated after each erase.\n\t\t\t\t\tlet mut k = index + 1;\n\t\t\t\t\twhile k \u003c info_list.len() {\n\t\t\t\t\t\tif info_list[k] == entry_fn {\n\t\t\t\t\t\t\tinfo_list.remove(k);\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tk += 1;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tself.image_sequence_ignore_files.push(entry_fn);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif is_sequence {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::common::oakcommon_videoparams_set_video_type(video_stream, bridge::common::OAKCOMMON_VIDEO_TYPE_IMAGE_SEQUENCE);\n\n\t\t\t\t\tlet mut rate_buf = [0i8; 64];\n\t\t\t\t\tlet needed = bridge::common::oakcommon_config_get(std::ptr::null(), cstr(\"DefaultSequenceFrameRate\"), rate_buf.as_mut_ptr(), rate_buf.len() as i32);\n\t\t\t\t\tif needed \u003e 0 {\n\t\t\t\t\t\tlet rate = crate::project::load::buf_to_string(\u0026rate_buf);\n\t\t\t\t\t\tif let Some((num, den)) = parse_rational(\u0026rate) {\n\t\t\t\t\t\t\tif den != 0 {\n\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_set_time_base(video_stream, num, den);\n\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_set_frame_rate(video_stream, den, num);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tbridge::common::oakcommon_videoparams_set_start_time(video_stream, start_index);\n\t\t\t\t\tbridge::common::oakcommon_videoparams_set_duration(video_stream, end_index - start_index + 1);\n\t\t\t\t\tbridge::node::oaknode_footage_set_video_params(footage, 0, \u0026video_stream);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif !video_stream.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut video_stream);\n\t\t\t}\n\t\t}\n\n\t\t// The probe footage was only created for comparison; remove it.\n\t\tfor probe in [previous_file, next_file] {\n\t\t\tif !probe.ctx.is_null() {\n\t\t\t\tlet mut remove = unsafe { bridge::node::oaknode_command_create_remove_node(bridge::node::oaknode_footage_as_node(probe)) };\n\t\t\t\tif !remove.ctx.is_null() {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(remove);\n\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut remove);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tlet _ = task;\n\t}\n\n\tfn item_is_still_image_footage_only(\u0026self, footage: CHandle) -\u003e bool {\n\t\tif unsafe { bridge::node::oaknode_footage_total_stream_count(footage) } != 1 {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet mut vp = CHandle::null();\n\t\tif unsafe { bridge::node::oaknode_footage_get_video_params(footage, 0, \u0026mut vp) } != 0 {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet mut video_type = 0;\n\t\tlet mut valid = 0;\n\t\tunsafe {\n\t\t\tbridge::common::oakcommon_videoparams_get_video_type(vp, \u0026mut video_type);\n\t\t\tbridge::common::oakcommon_videoparams_get_is_valid(vp, \u0026mut valid);\n\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut vp);\n\t\t}\n\n\t\tvalid != 0 \u0026\u0026 video_type == bridge::common::OAKCOMMON_VIDEO_TYPE_STILL\n\t}\n\n\tfn compare_still_image_size(\u0026self, footage: CHandle, width: i32, height: i32) -\u003e bool {\n\t\tif !self.item_is_still_image_footage_only(footage) {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet mut stream = CHandle::null();\n\t\tif unsafe { bridge::node::oaknode_footage_get_video_params(footage, 0, \u0026mut stream) } != 0 {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet mut w = 0;\n\t\tlet mut h = 0;\n\t\tunsafe {\n\t\t\tbridge::common::oakcommon_videoparams_get_width(stream, \u0026mut w);\n\t\t\tbridge::common::oakcommon_videoparams_get_height(stream, \u0026mut h);\n\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut stream);\n\t\t}\n\n\t\tw == width \u0026\u0026 h == height\n\t}\n}\n\nimpl TaskBehavior for ProjectImportTask {\n\t/// Import each filename via the oaknode footage/folder C ABI\n\t/// (`bridge::node`), collecting an undo command, imported footage, and\n\t/// per-file failures.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet mut command = unsafe { bridge::undo::oakundo_command_init_multi() };\n\t\tif command.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create import command\");\n\t\t\treturn Err(Error::Failed(\"Failed to create import command\".to_string()));\n\t\t}\n\t\tself.command = Some(command);\n\n\t\tlet mut counter = 0;\n\t\tlet mut entries = self.filenames.clone();\n\t\tself.import(task, self.folder, \u0026mut entries, \u0026mut counter, command);\n\n\t\tif task.is_cancelled() {\n\t\t\tif !command.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut command);\n\t\t\t\t}\n\t\t\t}\n\t\t\tself.command = None;\n\t\t\treturn Err(Error::Cancelled);\n\t\t}\n\t\tOk(())\n\t}\n}\n\n/// Count files recursively (directories recurse; anything else counts 1),\n/// mirroring `count_files_recursive` in import.cpp.\nfn count_files_recursive(paths: \u0026[String]) -\u003e usize {\n\tpaths\n\t\t.iter()\n\t\t.map(|p| {\n\t\t\tlet path = Path::new(p);\n\t\t\tif path.is_dir() {\n\t\t\t\tcount_dir_files(path)\n\t\t\t} else {\n\t\t\t\t1\n\t\t\t}\n\t\t})\n\t\t.sum()\n}\n\nfn count_dir_files(dir: \u0026Path) -\u003e usize {\n\tmatch std::fs::read_dir(dir) {\n\t\tOk(rd) =\u003e rd\n\t\t\t.filter_map(|e| e.ok())\n\t\t\t.map(|e| {\n\t\t\t\tlet p = e.path();\n\t\t\t\tif p.is_dir() {\n\t\t\t\t\tcount_dir_files(\u0026p)\n\t\t\t\t} else {\n\t\t\t\t\t1\n\t\t\t\t}\n\t\t\t})\n\t\t\t.sum(),\n\t\tErr(_) =\u003e 0,\n\t}\n}\n\n/// `std::filesystem::path(filename).filename()`, as a String.\nfn basename_of(path: \u0026str) -\u003e String {\n\tPath::new(path)\n\t\t.file_name()\n\t\t.map(|n| n.to_string_lossy().into_owned())\n\t\t.unwrap_or_default()\n}\n\n/// Two-stage read of the footage filename.\nfn footage_filename(footage: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_footage_filename(footage, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_footage_filename(footage, buf.as_mut_ptr(), needed);\n\t}\n\tcrate::project::load::buf_to_string(\u0026buf)\n}\n\n/// Substitute `number` into the trailing-digit field of an image-sequence\n/// filename (mirrors `oakcodec_decoder_transform_image_sequence_file_name`).\nfn transform_sequence_filename(filename: \u0026str, number: i64, digit_count: i32) -\u003e String {\n\tlet width = digit_count.max(0) as usize;\n\tmatch filename.rfind('.') {\n\t\tSome(dot) =\u003e {\n\t\t\t// The digits are the `width` chars immediately before the\n\t\t\t// extension; they are replaced by `number`.\n\t\t\tlet digits_start = dot.saturating_sub(width);\n\t\t\tlet prefix = \u0026filename[..digits_start];\n\t\t\tformat!(\"{prefix}{:0width$}{}\", number, \u0026filename[dot..], width = width)\n\t\t}\n\t\tNone =\u003e format!(\"{filename}{:0width$}\", number, width = width),\n\t}\n}\n\n/// Walk the index from `start` in the given direction while the transformed\n/// filename exists (mirrors `get_image_sequence_limit` in import.cpp).\nfn get_image_sequence_limit(start_fn: \u0026str, start: i64, up: bool, digit_count: i32) -\u003e i64 {\n\tlet mut current = start;\n\tloop {\n\t\tlet test_index = if up { current + 1 } else { current - 1 };\n\t\tlet test_filename = transform_sequence_filename(start_fn, test_index, digit_count);\n\t\tif !Path::new(\u0026test_filename).exists() {\n\t\t\tbreak;\n\t\t}\n\t\tcurrent = test_index;\n\t}\n\tcurrent\n}\n\n/// Parse a \"num/den\" frame-rate string.\nfn parse_rational(s: \u0026str) -\u003e Option\u003c(i32, i32)\u003e {\n\tlet mut parts = s.trim().split('/');\n\tlet num: i32 = parts.next()?.trim().parse().ok()?;\n\tlet den: i32 = parts.next()?.trim().parse().ok()?;\n\tSome((num, den))\n}\n\n/// Convenience used by the C ABI factory to compute the title.\npub(crate) fn import_title(paths: \u0026[String]) -\u003e String {\n\tlet count = 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ProjectLoadBaseTask` / `ProjectLoadTask`, mirroring\n//! `src/task/src/project/load/load.h`.\n//!\n//! Loads an `.oakproj` file into a new `OakNodeProject`. The base task holds\n//! the filename and produces the project on `take_project()`; `ProjectLoadTask`\n//! is the concrete (OTIO-less) loader.\n//!\n//! 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Returns `Err(Error::State)` if\n\t/// the task has not loaded a project yet.\n\tpub fn take_project(\u0026mut self) -\u003e Result\u003cCHandle\u003e {\n\t\tself.loaded_project.take().ok_or(Error::State)\n\t}\n\n\t/// Store the loaded project (called by `run`).\n\tpub(crate) fn store_project(\u0026mut self, project: CHandle) {\n\t\tself.loaded_project = Some(project);\n\t}\n}\n\nimpl TaskBehavior for ProjectLoadBaseTask {\n\t/// Load the project from `filename` via the oaknode serializer\n\t/// (`bridge::node`), storing the resulting `OakNodeProject`.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet mut project = unsafe { bridge::node::oaknode_project_init() };\n\t\tif project.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create project\");\n\t\t\treturn Err(Error::Failed(\"Failed to create project\".to_string()));\n\t\t}\n\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_project_set_filename(project, cstr(\u0026self.filename));\n\t\t}\n\n\t\tlet mut code = OAKNODE_SERIALIZER_RESULT_FILE_ERROR;\n\t\tlet mut details = [0i8; 512];\n\t\tlet result = unsafe {\n\t\t\tbridge::node::oaknode_serializer_load_from_file(\n\t\t\t\tproject,\n\t\t\t\tcstr(\u0026self.filename),\n\t\t\t\t\u0026mut code,\n\t\t\t\tdetails.as_mut_ptr(),\n\t\t\t\tdetails.len() as i32,\n\t\t\t)\n\t\t};\n\n\t\tlet mut success = false;\n\t\tmatch code {\n\t\t\tOAKNODE_SERIALIZER_RESULT_SUCCESS =\u003e success = true,\n\t\t\tOAKNODE_SERIALIZER_RESULT_PROJECT_TOO_OLD =\u003e {\n\t\t\t\ttask.set_error(\"This project is from a version of Oak Video Editor that is no longer supported in this version.\");\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_PROJECT_TOO_NEW =\u003e {\n\t\t\t\ttask.set_error(\"This project is from a newer version of Oak Video Editor and cannot be opened in this version.\");\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_UNKNOWN_VERSION =\u003e {\n\t\t\t\ttask.set_error(\"Failed to determine project version.\");\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_FILE_ERROR =\u003e {\n\t\t\t\ttask.set_error(\u0026format!(\"Failed to read file \\\"{}\\\" for reading.\", self.filename));\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_XML_ERROR =\u003e {\n\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\"Failed to read XML document. File may be corrupt. Error was: {}\",\n\t\t\t\t\tbuf_to_string(\u0026details)\n\t\t\t\t));\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_NO_DATA =\u003e {\n\t\t\t\ttask.set_error(\"Failed to find any data to parse.\");\n\t\t\t}\n\t\t\t_ =\u003e task.set_error(\"Unknown error.\"),\n\t\t}\n\n\t\tif result == 0 \u0026\u0026 success {\n\t\t\tself.store_project(project);\n\t\t\treturn Ok(());\n\t\t}\n\n\t\tif !project.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_project_free(\u0026mut project);\n\t\t\t}\n\t\t}\n\t\tErr(Error::Failed(\"Failed to load project\".to_string()))\n\t}\n}\n\n/// The concrete native project loader (no OTIO path).\npub struct ProjectLoadTask {\n\t/// The shared task base.\n\tpub base: ProjectLoadBaseTask,\n}\n\nimpl TaskBehavior for ProjectLoadTask {\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t\u003cProjectLoadBaseTask as TaskBehavior\u003e::run(\u0026mut self.base, task)\n\t}\n}\n\n/// Read a NUL-terminated char buffer into a String (lossy).\npub(crate) fn buf_to_string(buf: \u0026[i8]) -\u003e String {\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tunsafe { String::from_utf8_lossy(std::slice::from_raw_parts(buf.as_ptr() as *const u8, len)).into_owned() }\n}\n","traces":[{"line":53,"address":[],"length":0,"stats":{"Line":22}},{"line":55,"address":[],"length":0,"stats":{"Line":23}},{"line":56,"address":[],"length":0,"stats":{"Line":1}},{"line":58,"address":[],"length":0,"stats":{"Line":1}},{"line":67,"address":[],"length":0,"stats":{"Line":22}},{"line":77,"address":[],"length":0,"stats":{"Line":23}},{"line":78,"address":[],"length":0,"stats":{"Line":92}},{"line":82,"address":[],"length":0,"stats":{"Line":14}},{"line":83,"address":[],"length":0,"stats":{"Line":14}},{"line":90,"address":[],"length":0,"stats":{"Line":2}},{"line":91,"address":[],"length":0,"stats":{"Line":4}},{"line":92,"address":[],"length":0,"stats":{"Line":4}},{"line":93,"address":[],"length":0,"stats":{"Line":0}},{"line":94,"address":[],"length":0,"stats":{"Line":0}},{"line":98,"address":[],"length":0,"stats":{"Line":6}},{"line":101,"address":[],"length":0,"stats":{"Line":4}},{"line":102,"address":[],"length":0,"stats":{"Line":4}},{"line":105,"address":[],"length":0,"stats":{"Line":2}},{"line":106,"address":[],"length":0,"stats":{"Line":4}},{"line":107,"address":[],"length":0,"stats":{"Line":2}},{"line":108,"address":[],"length":0,"stats":{"Line":4}},{"line":109,"address":[],"length":0,"stats":{"Line":2}},{"line":113,"address":[],"length":0,"stats":{"Line":4}},{"line":114,"address":[],"length":0,"stats":{"Line":2}},{"line":115,"address":[],"length":0,"stats":{"Line":1}},{"line":116,"address":[],"length":0,"stats":{"Line":0}},{"line":117,"address":[],"length":0,"stats":{"Line":0}},{"line":119,"address":[],"length":0,"stats":{"Line":0}},{"line":120,"address":[],"length":0,"stats":{"Line":0}},{"line":122,"address":[],"length":0,"stats":{"Line":0}},{"line":123,"address":[],"length":0,"stats":{"Line":0}},{"line":125,"address":[],"length":0,"stats":{"Line":1}},{"line":126,"address":[],"length":0,"stats":{"Line":2}},{"line":128,"address":[],"length":0,"stats":{"Line":0}},{"line":129,"address":[],"length":0,"stats":{"Line":0}},{"line":130,"address":[],"length":0,"stats":{"Line":0}},{"line":131,"address":[],"length":0,"stats":{"Line":0}},{"line":134,"address":[],"length":0,"stats":{"Line":0}},{"line":135,"address":[],"length":0,"stats":{"Line":0}},{"line":137,"address":[],"length":0,"stats":{"Line":0}},{"line":140,"address":[],"length":0,"stats":{"Line":4}},{"line":141,"address":[],"length":0,"stats":{"Line":3}},{"line":142,"address":[],"length":0,"stats":{"Line":1}},{"line":145,"address":[],"length":0,"stats":{"Line":1}},{"line":147,"address":[],"length":0,"stats":{"Line":1}},{"line":150,"address":[],"length":0,"stats":{"Line":1}},{"line":161,"address":[],"length":0,"stats":{"Line":2}},{"line":162,"address":[],"length":0,"stats":{"Line":6}},{"line":167,"address":[],"length":0,"stats":{"Line":86}},{"line":168,"address":[],"length":0,"stats":{"Line":2121}},{"line":169,"address":[],"length":0,"stats":{"Line":344}}],"covered":36,"coverable":51},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","project","loadotio.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `LoadOTIOTask`, mirroring `src/task/src/project/loadotio/loadotio.h`.\n//!\n//! Loads an OpenTimelineIO (`.otio`) or FCPXML (`.fcpxml`) file into a new\n//! `OakNodeProject`, with a configurable import-confirmation callback. The\n//! format is dispatched from the filename extension (see\n//! [`crate::project::format`]); the document is parsed with the pure-Rust\n//! `oakotio` binding (see `README` decision #6) and the project is built\n//! through the oaknode / oaktimeline C ABIs exactly like the C++ task, so\n//! no OTIO or FCPXML type crosses the oaktask C ABI.\n//!\n//! CPP-PARITY: src/task/src/project/loadotio/loadotio.cpp\n\nuse std::collections::HashMap;\nuse std::path::Path;\nuse std::sync::Mutex;\n\nuse oakotio::Serializable;\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::project::format::InterchangeFormat;\nuse crate::project::load::ProjectLoadBaseTask;\nuse crate::task::{Task, TaskBehavior};\n\n/// Callback used to confirm whether the sequences of an OTIO document should\n/// be imported, mirroring `ImportConfirmFn` in loadotio.h (receives the\n/// sequence labels in order; return true to accept).\npub type ImportConfirmFn = Box\u003cdyn FnMut(\u0026[String]) -\u003e bool + Send\u003e;\n\n/// Global import-confirmation callback, mirroring the C++ static\n/// `LoadOTIOTask::confirm_callback_` (loadotio.h). When unset, everything is\n/// imported (the headless default).\nstatic CONFIRM_CALLBACK: Mutex\u003cOption\u003cImportConfirmFn\u003e\u003e = Mutex::new(None);\n\n/// Register (or clear, with `None`) the global import-confirmation callback.\n///\n/// CPP-PARITY: src/task/src/project/loadotio/loadotio.h\n/// (`LoadOTIOTask::set_import_confirm_callback`)\npub fn set_import_confirm_callback(cb: Option\u003cImportConfirmFn\u003e) {\n\t*CONFIRM_CALLBACK.lock().unwrap() = cb;\n}\n\n/// An OTIO project loader.\npub struct LoadOTIOTask {\n\t/// The base load task (owns the filename and yields the project).\n\tpub base: ProjectLoadBaseTask,\n}\n\nimpl LoadOTIOTask {\n\t/// Create an OTIO loader for the given base load task.\n\tpub fn new(base: ProjectLoadBaseTask) -\u003e LoadOTIOTask {\n\t\tLoadOTIOTask { base }\n\t}\n}\n\nimpl TaskBehavior for LoadOTIOTask {\n\t/// Load and parse the document (`oakotio`), then convert it into the\n\t/// project stored on the base task.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Dispatch the interchange format from the filename extension.\n\t\t// Format handling ends here: `parse_timelines` returns one\n\t\t// `oakotio::Timeline` per sequence whatever the source format, so\n\t\t// the project building below is shared between `.otio` and\n\t\t// `.fcpxml` (C++ parity for the track/clip/footage code).\n\t\tlet format = match InterchangeFormat::of(\u0026self.base.filename) {\n\t\t\tOk(f) =\u003e f,\n\t\t\tErr(e) =\u003e {\n\t\t\t\tif let Error::Failed(msg) = \u0026e {\n\t\t\t\t\ttask.set_error(msg);\n\t\t\t\t}\n\t\t\t\treturn Err(e);\n\t\t\t}\n\t\t};\n\n\t\tlet timelines = parse_timelines(task, \u0026self.base.filename, format)?;\n\n\t\tlet mut project = unsafe { bridge::node::oaknode_project_init() };\n\t\tif project.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create project\");\n\t\t\treturn Err(Error::Failed(\"Failed to create project\".to_string()));\n\t\t}\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_project_initialize(project);\n\t\t\tbridge::node::oaknode_project_set_modified(project, 1);\n\t\t}\n\n\t\t// Keep track of imported footage\n\t\tlet mut imported_footage: HashMap\u003cString, CHandle\u003e = HashMap::new();\n\n\t\t// Generate a list of sequences with the same names as the timelines.\n\t\t// Assumes each timeline has a unique name.\n\t\tlet mut unnamed_sequence_count = 0;\n\t\tlet mut sequences: Vec\u003cCHandle\u003e = Vec::new();\n\n\t\t// Variables used for loading bar\n\t\tlet mut number_of_clips: f64 = 0.0;\n\n\t\tfor timeline in \u0026timelines {\n\t\t\tlet sequence = unsafe { bridge::node::oaknode_sequence_create() };\n\t\t\tif sequence.ctx.is_null() {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tlet label = if !timeline.name().is_empty() {\n\t\t\t\ttimeline.name().to_string()\n\t\t\t} else {\n\t\t\t\t// If the otio timeline does not provide a name, create a\n\t\t\t\t// default one here.\n\t\t\t\tunnamed_sequence_count += 1;\n\t\t\t\tformat!(\"Sequence {unnamed_sequence_count}\")\n\t\t\t};\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_node_set_label(bridge::node::oaknode_sequence_as_node(sequence), cstr(\u0026label));\n\t\t\t}\n\n\t\t\t// Set default params incase they aren't edited.\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_sequence_set_default_parameters(sequence);\n\t\t\t}\n\n\t\t\t// Get number of clips for loading bar\n\t\t\tfor track in timeline.tracks().children() {\n\t\t\t\tif let Some(otio_track) = track.as_track() {\n\t\t\t\t\tnumber_of_clips += otio_track.children().len() as f64;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tsequences.push(sequence);\n\t\t}\n\t\tif number_of_clips \u003c= 0.0 {\n\t\t\tnumber_of_clips = 1.0;\n\t\t}\n\n\t\t// Ask the user which sequences to import (facade callback; headless\n\t\t// default accepts everything).\n\t\tlet sequence_names: Vec\u003cString\u003e = sequences\n\t\t\t.iter()\n\t\t\t.map(|s| node_label_of(unsafe { bridge::node::oaknode_sequence_as_node(*s) }))\n\t\t\t.collect();\n\t\tlet mut confirm = CONFIRM_CALLBACK.lock().unwrap().take();\n\t\tlet accepted = match confirm.as_mut() {\n\t\t\tSome(cb) =\u003e cb(\u0026sequence_names),\n\t\t\tNone =\u003e true,\n\t\t};\n\n\t\tif !accepted {\n\t\t\t// Cancel to indicate to caller that this task did not complete\n\t\t\t// and to simply dispose of it. The project is never handed to the\n\t\t\t// base task, so free it here (the C++ base-task destructor does\n\t\t\t// the same).\n\t\t\ttask.cancel();\n\t\t\tfor sequence in \u0026mut sequences {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_sequence_free(sequence);\n\t\t\t\t}\n\t\t\t}\n\t\t\tif !project.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_project_free(\u0026mut project);\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn Ok(());\n\t\t}\n\n\t\tlet root_folder = unsafe { bridge::node::oaknode_project_root(project) };\n\t\tlet mut clips_done = 0.0f64;\n\n\t\tfor (timeline, sequence) in timelines.iter().zip(\u0026sequences) {\n\t\t\tlet sequence_node = unsafe { bridge::node::oaknode_sequence_as_node(*sequence) };\n\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_project_add_node(project, sequence_node);\n\t\t\t}\n\t\t\tlet mut add_seq = unsafe { bridge::node::oaknode_command_create_folder_add_child(root_folder, sequence_node) };\n\t\t\tif !add_seq.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::undo::oakundo_command_redo_now(add_seq);\n\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut add_seq);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Create a folder for this sequence's footage\n\t\t\tlet sequence_footage = unsafe { bridge::node::oaknode_folder_create(project) };\n\t\t\tif !sequence_footage.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_node_set_label(\n\t\t\t\t\t\tbridge::node::oaknode_folder_as_node(sequence_footage),\n\t\t\t\t\t\tcstr(timeline.name()),\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t\tlet mut add_folder = unsafe {\n\t\t\t\t\tbridge::node::oaknode_command_create_folder_add_child(\n\t\t\t\t\t\troot_folder,\n\t\t\t\t\t\tbridge::node::oaknode_folder_as_node(sequence_footage),\n\t\t\t\t\t)\n\t\t\t\t};\n\t\t\t\tif !add_folder.ctx.is_null() {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(add_folder);\n\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut add_folder);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Iterate through tracks\n\t\t\tfor track_composable in timeline.tracks().children() {\n\t\t\t\tlet Some(otio_track) = track_composable.as_track() else {\n\t\t\t\t\tcontinue;\n\t\t\t\t};\n\n\t\t\t\t// Determine what kind of track it is\n\t\t\t\tlet track_type = match otio_track.kind() {\n\t\t\t\t\t\"Video\" =\u003e bridge::node::OAKNODE_TRACK_TYPE_VIDEO,\n\t\t\t\t\t\"Audio\" =\u003e bridge::node::OAKNODE_TRACK_TYPE_AUDIO,\n\t\t\t\t\tother =\u003e {\n\t\t\t\t\t\teprintln!(\"Found unknown track type: {other}\");\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\t\t\t\t};\n\n\t\t\t\t// Create a new track\n\t\t\t\tlet mut track_list = CHandle::null();\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_sequence_get_track_list(*sequence, track_type, \u0026mut track_list);\n\t\t\t\t}\n\t\t\t\tlet mut add_track = unsafe { bridge::timeline::oaktimeline_add_track_command(track_list) };\n\t\t\t\tif !add_track.ctx.is_null() {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(add_track);\n\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut add_track);\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tlet mut track = CHandle::null();\n\t\t\t\tlet mut count = 0;\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_tracklist_get_track_count(track_list, \u0026mut count);\n\t\t\t\t}\n\t\t\t\tif count \u003e 0 {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::node::oaknode_tracklist_get_track_at(track_list, count - 1, \u0026mut track);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif track.ctx.is_null() {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\t// Get clips from track\n\t\t\t\tlet mut previous_block = CHandle::null();\n\t\t\t\tlet mut prev_block_transition = false;\n\n\t\t\t\tfor otio_block in otio_track.children() {\n\t\t\t\t\tif task.is_cancelled() {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\n\t\t\t\t\tlet block = match otio_block.schema_name() {\n\t\t\t\t\t\t\"Clip\" =\u003e unsafe { bridge::node::oaknode_block_clip_create() },\n\t\t\t\t\t\t\"Gap\" =\u003e unsafe { bridge::node::oaknode_block_gap_create() },\n\t\t\t\t\t\t\"Transition\" =\u003e {\n\t\t\t\t\t\t\t// Todo: Look into OTIO supported transitions and add\n\t\t\t\t\t\t\t// them to Oak.\n\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\tbridge::node::oaknode_block_transition_create(bridge::node::OAKNODE_TRANSITION_CROSS_DISSOLVE)\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t\tother =\u003e {\n\t\t\t\t\t\t\t// We don't know what this is yet, just create a gap\n\t\t\t\t\t\t\t// for now so that *something* is there.\n\t\t\t\t\t\t\teprintln!(\"Found unknown block type: {other}\");\n\t\t\t\t\t\t\tunsafe { bridge::node::oaknode_block_gap_create() }\n\t\t\t\t\t\t}\n\t\t\t\t\t};\n\t\t\t\t\tif block.ctx.is_null() {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tlet block_node = unsafe { bridge::node::oaknode_block_as_node(block) };\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::node::oaknode_project_add_node(project, block_node);\n\t\t\t\t\t\tbridge::node::oaknode_node_set_label(block_node, cstr(otio_block.name()));\n\t\t\t\t\t\tbridge::node::oaknode_track_append_block(track, block);\n\t\t\t\t\t}\n\n\t\t\t\t\tif otio_block.schema_name() == \"Clip\" || otio_block.schema_name() == \"Gap\" {\n\t\t\t\t\t\tif let Some(source_range) = otio_block.source_range() {\n\t\t\t\t\t\t\tlet start_seconds = source_range.start_time().to_seconds();\n\t\t\t\t\t\t\tlet duration_seconds = source_range.duration().to_seconds();\n\n\t\t\t\t\t\t\tlet start_time = oakcore_rs::Rational::from_double(start_seconds);\n\t\t\t\t\t\t\tlet duration = oakcore_rs::Rational::from_double(duration_seconds);\n\n\t\t\t\t\t\t\tif otio_block.schema_name() == \"Clip\" {\n\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\tbridge::node::oaknode_clip_set_media_in(\n\t\t\t\t\t\t\t\t\t\tblock,\n\t\t\t\t\t\t\t\t\t\tstart_time.numerator() as i32,\n\t\t\t\t\t\t\t\t\t\tstart_time.denominator() as i32,\n\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\tbridge::node::oaknode_block_set_length_and_media_out(\n\t\t\t\t\t\t\t\t\tblock,\n\t\t\t\t\t\t\t\t\tduration.numerator() as i32,\n\t\t\t\t\t\t\t\t\tduration.denominator() as i32,\n\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// If the previous block was a transition, connect the\n\t\t\t\t\t// current block to it.\n\t\t\t\t\tif prev_block_transition {\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(\n\t\t\t\t\t\t\t\tblock_node,\n\t\t\t\t\t\t\t\tbridge::node::oaknode_block_as_node(previous_block),\n\t\t\t\t\t\t\t\tcstr(bridge::node::OAKNODE_TRANSITION_IN_BLOCK_INPUT),\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t}\n\t\t\t\t\t\tprev_block_transition = false;\n\t\t\t\t\t}\n\n\t\t\t\t\tif let Some(otio_transition) = otio_block.as_transition() {\n\t\t\t\t\t\t// Set how far the transition eats into the previous\n\t\t\t\t\t\t// clip.\n\t\t\t\t\t\tlet in_offset = otio_transition.in_offset().to_rational();\n\t\t\t\t\t\tlet out_offset = otio_transition.out_offset().to_rational();\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::node::oaknode_transition_set_offsets_and_length(\n\t\t\t\t\t\t\t\tblock,\n\t\t\t\t\t\t\t\tin_offset.numerator() as i32,\n\t\t\t\t\t\t\t\tin_offset.denominator() as i32,\n\t\t\t\t\t\t\t\tout_offset.numerator() as i32,\n\t\t\t\t\t\t\t\tout_offset.denominator() as i32,\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif !previous_block.ctx.is_null() {\n\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(\n\t\t\t\t\t\t\t\t\tbridge::node::oaknode_block_as_node(previous_block),\n\t\t\t\t\t\t\t\t\tblock_node,\n\t\t\t\t\t\t\t\t\tcstr(bridge::node::OAKNODE_TRANSITION_OUT_BLOCK_INPUT),\n\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t\tprev_block_transition = true;\n\n\t\t\t\t\t\t// Position transition in its own context.\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tset_own_context_position(block_node);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tif otio_block.schema_name() == \"Gap\" {\n\t\t\t\t\t\t// Position gap in its own context.\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tset_own_context_position(block_node);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Update this after it's used but before any continue\n\t\t\t\t\t// statements.\n\t\t\t\t\tprevious_block = block;\n\n\t\t\t\t\tif otio_block.schema_name() == \"Clip\" {\n\t\t\t\t\t\tlet Some(otio_clip) = otio_block.as_clip() else {\n\t\t\t\t\t\t\tcontinue;\n\t\t\t\t\t\t};\n\t\t\t\t\t\tlet Some(media_reference) = otio_clip.media_reference() else {\n\t\t\t\t\t\t\tcontinue;\n\t\t\t\t\t\t};\n\t\t\t\t\t\tif let Some(external) = media_reference.as_external_reference() {\n\t\t\t\t\t\t\t// Link footage\n\t\t\t\t\t\t\tlet footage_url = external.target_url().to_string();\n\n\t\t\t\t\t\t\tlet probed_item = if let Some(existing) = imported_footage.get(\u0026footage_url) {\n\t\t\t\t\t\t\t\t*existing\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\tlet created = unsafe { bridge::node::oaknode_footage_create(project, cstr(\u0026footage_url)) };\n\t\t\t\t\t\t\t\tif !created.ctx.is_null() {\n\t\t\t\t\t\t\t\t\timported_footage.insert(footage_url.clone(), created);\n\n\t\t\t\t\t\t\t\t\tlet label = Path::new(\u0026footage_url)\n\t\t\t\t\t\t\t\t\t\t.file_name()\n\t\t\t\t\t\t\t\t\t\t.map(|n| n.to_string_lossy().into_owned())\n\t\t\t\t\t\t\t\t\t\t.unwrap_or_default();\n\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_set_label(\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(created),\n\t\t\t\t\t\t\t\t\t\t\tcstr(\u0026label),\n\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\tif !sequence_footage.ctx.is_null() {\n\t\t\t\t\t\t\t\t\t\tlet mut add_footage = unsafe {\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_command_create_folder_add_child(\n\t\t\t\t\t\t\t\t\t\t\t\tsequence_footage,\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(created),\n\t\t\t\t\t\t\t\t\t\t\t)\n\t\t\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t\t\t\tif !add_footage.ctx.is_null() {\n\t\t\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(add_footage);\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut add_footage);\n\t\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tcreated\n\t\t\t\t\t\t\t};\n\n\t\t\t\t\t\t\tif !probed_item.ctx.is_null() {\n\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t// Position clip in its own context.\n\t\t\t\t\t\t\t\t\tset_own_context_position(block_node);\n\n\t\t\t\t\t\t\t\t\t// Position footage in its context.\n\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_set_context_position(\n\t\t\t\t\t\t\t\t\t\tblock_node,\n\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(probed_item),\n\t\t\t\t\t\t\t\t\t\t-2.0,\n\t\t\t\t\t\t\t\t\t\t0.0,\n\t\t\t\t\t\t\t\t\t\t0,\n\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tif track_type == bridge::node::OAKNODE_TRACK_TYPE_VIDEO {\n\t\t\t\t\t\t\t\t\tlet transform = unsafe {\n\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_factory_create_from_id(cstr(bridge::node::OAKNODE_TYPE_TRANSFORM))\n\t\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t\t\tif !transform.ctx.is_null() {\n\t\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_project_add_node(project, transform);\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(probed_item),\n\t\t\t\t\t\t\t\t\t\t\t\ttransform,\n\t\t\t\t\t\t\t\t\t\t\t\tcstr(\"tex_in\"),\n\t\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(transform, block_node, cstr(\"buffer_in\"));\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_set_context_position(block_node, transform, -1.0, 0.0, 0);\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\tlet volume =\n\t\t\t\t\t\t\t\t\t\tunsafe { bridge::node::oaknode_factory_create_from_id(cstr(bridge::node::OAKNODE_TYPE_VOLUME)) };\n\t\t\t\t\t\t\t\t\tif !volume.ctx.is_null() {\n\t\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_project_add_node(project, volume);\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(probed_item),\n\t\t\t\t\t\t\t\t\t\t\t\tvolume,\n\t\t\t\t\t\t\t\t\t\t\t\tcstr(\"samples_in\"),\n\t\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(volume, block_node, cstr(\"buffer_in\"));\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_set_context_position(block_node, volume, -1.0, 0.0, 0);\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tclips_done += 1.0;\n\t\t\t\t\ttask.emit_progress(clips_done / number_of_clips);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tself.base.store_project(project);\n\t\tOk(())\n\t}\n}\n\n/// Set the node's position in its own context (the C++\n/// `set_own_context_position` helper in loadotio.cpp).\nunsafe fn set_own_context_position(node: CHandle) {\n\tunsafe {\n\t\tbridge::node::oaknode_node_set_context_position(node, node, 0.0, 0.0, 0);\n\t}\n}\n\n/// Parse the document into one `oakotio::Timeline` per sequence, dispatching\n/// on the filename extension:\n///\n/// - `.otio`: OpenTimelineIO JSON. A `Timeline` root yields one timeline, a\n/// `SerializableCollection` yields one timeline per `Timeline` child, and\n/// any other root is the C++ \"Unknown OpenTimelineIO root element\" error.\n/// - `.fcpxml`: FCPXML (`oakotio::fcpxml`), one timeline per `\u003csequence\u003e`.\n///\n/// Format handling ends here — the caller builds the project from the\n/// returned timelines regardless of the source format (C++ parity), so the\n/// track/clip/footage code never forks.\nfn parse_timelines(task: \u0026mut Task, filename: \u0026str, format: InterchangeFormat) -\u003e Result\u003cVec\u003coakotio::Timeline\u003e\u003e {\n\tmatch format {\n\t\tInterchangeFormat::OtioJson =\u003e {\n\t\t\tlet root = oakotio::from_json_file(filename).map_err(|e| {\n\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\"Failed to load OpenTimelineIO from file \\\"{}\\\" \\n\\nOpenTimelineIO Error:\\n\\n{}\",\n\t\t\t\t\tfilename, e\n\t\t\t\t));\n\t\t\t\tError::Failed(\"Failed to load OpenTimelineIO\".to_string())\n\t\t\t})?;\n\t\t\tmatch \u0026root {\n\t\t\t\tSerializable::SerializableCollection(collection) =\u003e Ok(collection\n\t\t\t\t\t.children()\n\t\t\t\t\t.iter()\n\t\t\t\t\t.filter_map(|child| child.as_timeline().cloned())\n\t\t\t\t\t.collect()),\n\t\t\t\tSerializable::Timeline(timeline) =\u003e Ok(vec![timeline.clone()]),\n\t\t\t\t_ =\u003e {\n\t\t\t\t\ttask.set_error(\"Unknown OpenTimelineIO root element\");\n\t\t\t\t\tErr(Error::Failed(\"Unknown OpenTimelineIO root element\".to_string()))\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tInterchangeFormat::Fcpxml =\u003e oakotio::from_fcpxml_file(filename).map_err(|e| {\n\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\"Failed to load FCPXML from file \\\"{}\\\" \\n\\nFCPXML Error:\\n\\n{}\",\n\t\t\t\tfilename, e\n\t\t\t));\n\t\t\tError::Failed(\"Failed to load FCPXML\".to_string())\n\t\t}),\n\t}\n}\n\n/// Two-stage read of a node's label (the C++ `oaknode_node_get_label` usage).\nfn node_label_of(node: CHandle) -\u003e 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ProjectSaveTask`, mirroring `src/task/src/project/save/save.h`.\n//!\n//! Serializes a borrowed `OakNodeProject` to an `.oakproj` file via the\n//! oaknode serializer. Optionally writes to an override filename and/or uses\n//! compression.\n//!\n//! CPP-PARITY: src/task/src/project/save/save.h\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::project::load::buf_to_string;\nuse crate::task::{Task, TaskBehavior};\n\n/// Serializer result codes (`include/node/serializer.h`).\nconst OAKNODE_SERIALIZER_RESULT_SUCCESS: i32 = 0;\nconst OAKNODE_SERIALIZER_RESULT_XML_ERROR: i32 = 5;\nconst OAKNODE_SERIALIZER_RESULT_FILE_ERROR: i32 = 4;\nconst OAKNODE_SERIALIZER_RESULT_OVERWRITE_ERROR: i32 = 6;\n\n/// A project-save task. Borrows its project and never takes ownership.\npub struct ProjectSaveTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Borrowed project to save (borrowed `OakNodeProject`).\n\tpub project: CHandle,\n\t/// Optional override filename; when empty the project's own filename is\n\t/// used.\n\tpub override_filename: Option\u003cString\u003e,\n\t/// Whether to compress the serialized output.\n\tpub use_compression: bool,\n}\n\nimpl ProjectSaveTask {\n\t/// Set the output filename override.\n\tpub fn set_override_filename(\u0026mut self, filename: \u0026str) {\n\t\tself.override_filename = Some(filename.to_string());\n\t}\n}\n\nimpl TaskBehavior for ProjectSaveTask {\n\t/// Serialize the project via the oaknode serializer (`bridge::node`) to\n\t/// the resolved filename.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet using_filename = match \u0026self.override_filename {\n\t\t\tSome(name) =\u003e name.clone(),\n\t\t\tNone =\u003e project_filename(self.project),\n\t\t};\n\n\t\tif using_filename.is_empty() {\n\t\t\ttask.set_error(\"Project has no filename to save to.\");\n\t\t\treturn Err(Error::Failed(\"Project has no filename to save to.\".to_string()));\n\t\t}\n\n\t\tlet mut code = OAKNODE_SERIALIZER_RESULT_FILE_ERROR;\n\t\tlet mut details = [0i8; 512];\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_serializer_save_to_file(\n\t\t\t\tself.project,\n\t\t\t\tcstr(\u0026using_filename),\n\t\t\t\tif self.use_compression { 1 } else { 0 },\n\t\t\t\t\u0026mut code,\n\t\t\t\tdetails.as_mut_ptr(),\n\t\t\t\tdetails.len() as i32,\n\t\t\t);\n\t\t}\n\n\t\tlet mut success = false;\n\t\tmatch code {\n\t\t\tOAKNODE_SERIALIZER_RESULT_SUCCESS =\u003e success = true,\n\t\t\tOAKNODE_SERIALIZER_RESULT_XML_ERROR =\u003e {\n\t\t\t\ttask.set_error(\"Failed to write XML data.\");\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_FILE_ERROR =\u003e {\n\t\t\t\ttask.set_error(\u0026format!(\"Failed to open file for writing: {}\", buf_to_string(\u0026details)));\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_OVERWRITE_ERROR =\u003e {\n\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\"Failed to overwrite \\\"{}\\\". Project has been saved as \\\"{}\\\" instead.\",\n\t\t\t\t\tusing_filename,\n\t\t\t\t\tbuf_to_string(\u0026details)\n\t\t\t\t));\n\t\t\t\tsuccess = true;\n\t\t\t}\n\t\t\t_ =\u003e task.set_error(\"Unknown error.\"),\n\t\t}\n\n\t\tif success {\n\t\t\tOk(())\n\t\t} else {\n\t\t\tErr(Error::Failed(\"Failed to save project\".to_string()))\n\t\t}\n\t}\n}\n\n/// Two-stage read of the project's own filename (empty when unset).\npub(crate) fn project_filename(project: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_project_filename(project, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_project_filename(project, buf.as_mut_ptr(), needed);\n\t}\n\tbuf_to_string(\u0026buf)\n}\n","traces":[{"line":53,"address":[],"length":0,"stats":{"Line":3}},{"line":54,"address":[],"length":0,"stats":{"Line":6}},{"line":61,"address":[],"length":0,"stats":{"Line":9}},{"line":62,"address":[],"length":0,"stats":{"Line":18}},{"line":63,"address":[],"length":0,"stats":{"Line":6}},{"line":64,"address":[],"length":0,"stats":{"Line":14}},{"line":67,"address":[],"length":0,"stats":{"Line":18}},{"line":68,"address":[],"length":0,"stats":{"Line":3}},{"line":69,"address":[],"length":0,"stats":{"Line":1}},{"line":72,"address":[],"length":0,"stats":{"Line":16}},{"line":73,"address":[],"length":0,"stats":{"Line":16}},{"line":76,"address":[],"length":0,"stats":{"Line":8}},{"line":77,"address":[],"length":0,"stats":{"Line":16}},{"line":78,"address":[],"length":0,"stats":{"Line":16}},{"line":79,"address":[],"length":0,"stats":{"Line":8}},{"line":80,"address":[],"length":0,"stats":{"Line":16}},{"line":81,"address":[],"length":0,"stats":{"Line":8}},{"line":85,"address":[],"length":0,"stats":{"Line":16}},{"line":86,"address":[],"length":0,"stats":{"Line":8}},{"line":87,"address":[],"length":0,"stats":{"Line":8}},{"line":88,"address":[],"length":0,"stats":{"Line":0}},{"line":89,"address":[],"length":0,"stats":{"Line":0}},{"line":91,"address":[],"length":0,"stats":{"Line":0}},{"line":92,"address":[],"length":0,"stats":{"Line":0}},{"line":94,"address":[],"length":0,"stats":{"Line":0}},{"line":95,"address":[],"length":0,"stats":{"Line":0}},{"line":96,"address":[],"length":0,"stats":{"Line":0}},{"line":97,"address":[],"length":0,"stats":{"Line":0}},{"line":98,"address":[],"length":0,"stats":{"Line":0}},{"line":100,"address":[],"length":0,"stats":{"Line":0}},{"line":102,"address":[],"length":0,"stats":{"Line":0}},{"line":105,"address":[],"length":0,"stats":{"Line":8}},{"line":106,"address":[],"length":0,"stats":{"Line":8}},{"line":108,"address":[],"length":0,"stats":{"Line":0}},{"line":114,"address":[],"length":0,"stats":{"Line":22}},{"line":115,"address":[],"length":0,"stats":{"Line":88}},{"line":116,"address":[],"length":0,"stats":{"Line":22}},{"line":117,"address":[],"length":0,"stats":{"Line":0}},{"line":119,"address":[],"length":0,"stats":{"Line":66}},{"line":121,"address":[],"length":0,"stats":{"Line":88}},{"line":123,"address":[],"length":0,"stats":{"Line":44}}],"covered":28,"coverable":41},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","project","saveotio.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `SaveOTIOTask`, mirroring `src/task/src/project/saveotio/saveotio.h`.\n//!\n//! Serializes a borrowed `OakNodeProject` to an OpenTimelineIO (`.otio`) or\n//! FCPXML (`.fcpxml`) file through the pure-Rust `oakotio` binding (see\n//! `README` decision #6): the project's sequences become `OTIO::Timeline`s\n//! (`serialize_timeline` / `serialize_track` / `serialize_track_list`),\n//! exactly like the C++ `serialize_*` helpers. The format is dispatched\n//! from the filename extension (see [`crate::project::format`]) at the\n//! final write only — the serialization itself is shared. No OTIO or\n//! FCPXML type crosses the oaktask C ABI.\n//!\n//! CPP-PARITY: src/task/src/project/saveotio/saveotio.cpp\n\nuse oakcore_rs::Rational;\nuse oakotio::{\n\tClip, Composable, ExternalReference, Gap, MediaReference, RationalTime, Serializable, SerializableCollection, TimeRange,\n\tTimeline, Track, Transition,\n};\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\nuse crate::project::format::InterchangeFormat;\nuse crate::project::load::buf_to_string;\nuse crate::task::{Task, TaskBehavior};\n\n/// `Rational(INT_MIN)` — the initial \"no track yet\" maximum length\n/// (`RATIONAL_MIN` in saveotio.cpp).\nfn rational_min() -\u003e Rational {\n\tRational::new(-2147483647, 1)\n}\n\n/// An OTIO project-save task. Borrows its project.\npub struct SaveOTIOTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Borrowed project to save (borrowed `OakNodeProject`).\n\tpub project: CHandle,\n\t/// Output OTIO filename.\n\tpub filename: String,\n}\n\nimpl SaveOTIOTask {\n\t/// Serialize one sequence into an `OTIO::Timeline`; `None` when the\n\t/// sequence has no usable frame rate or a track fails to serialize.\n\t///\n\t/// CPP-PARITY: saveotio.cpp (SaveOTIOTask::serialize_timeline)\n\tfn serialize_timeline(sequence: CHandle) -\u003e Option\u003cTimeline\u003e {\n\t\tlet mut otio_timeline = Timeline::new(node_label_of(unsafe { bridge::node::oaknode_sequence_as_node(sequence) }));\n\n\t\tlet mut rate = 0.0f64;\n\t\t{\n\t\t\tlet mut num = 0;\n\t\t\tlet mut den = 1;\n\t\t\tlet mut vp = CHandle::null();\n\t\t\tif unsafe { bridge::node::oaknode_sequence_get_video_params(sequence, 0, \u0026mut vp) } == 0 {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::common::oakcommon_videoparams_get_frame_rate(vp, \u0026mut num, \u0026mut den);\n\t\t\t\t}\n\t\t\t\tif den != 0 {\n\t\t\t\t\trate = num as f64 / den as f64;\n\t\t\t\t}\n\t\t\t\tif !vp.ctx.is_null() {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut vp);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif rate.is_nan() || rate \u003c= 0.0 {\n\t\t\treturn None;\n\t\t}\n\n\t\tlet mut video_list = CHandle::null();\n\t\tlet mut audio_list = CHandle::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_sequence_get_track_list(sequence, bridge::node::OAKNODE_TRACK_TYPE_VIDEO, \u0026mut video_list);\n\t\t\tbridge::node::oaknode_sequence_get_track_list(sequence, bridge::node::OAKNODE_TRACK_TYPE_AUDIO, \u0026mut audio_list);\n\t\t}\n\n\t\tif !Self::serialize_track_list(video_list, \u0026mut otio_timeline, rate)\n\t\t\t|| !Self::serialize_track_list(audio_list, \u0026mut otio_timeline, rate)\n\t\t{\n\t\t\treturn None;\n\t\t}\n\n\t\tSome(otio_timeline)\n\t}\n\n\t/// Serialize all tracks of one track list (video or audio) into the\n\t/// timeline. Each track is padded to the list's maximum track length.\n\t///\n\t/// CPP-PARITY: saveotio.cpp (SaveOTIOTask::serialize_track_list)\n\tfn serialize_track_list(list: CHandle, otio_timeline: \u0026mut Timeline, sequence_rate: f64) -\u003e bool {\n\t\tif list.ctx.is_null() {\n\t\t\treturn true;\n\t\t}\n\n\t\tlet mut max_track_length = rational_min();\n\n\t\tlet mut track_count = 0;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_tracklist_get_track_count(list, \u0026mut track_count);\n\t\t}\n\n\t\tfor i in 0..track_count {\n\t\t\tlet mut track = CHandle::null();\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_tracklist_get_track_at(list, i, \u0026mut track);\n\t\t\t}\n\t\t\tif !track.ctx.is_null() {\n\t\t\t\tlet length = track_length_of(track);\n\t\t\t\tif length \u003e max_track_length {\n\t\t\t\t\tmax_track_length = length;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor i in 0..track_count {\n\t\t\tlet mut track = CHandle::null();\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_tracklist_get_track_at(list, i, \u0026mut track);\n\t\t\t}\n\t\t\tif track.ctx.is_null() {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tlet Some(otio_track) = Self::serialize_track(track, sequence_rate, max_track_length) else {\n\t\t\t\treturn false;\n\t\t\t};\n\n\t\t\totio_timeline.tracks_mut().append_child(Composable::Track(otio_track));\n\t\t}\n\n\t\ttrue\n\t}\n\n\t/// Serialize one track: a `Track` whose kind matches the native track\n\t/// type, one OTIO block per native block, plus a trailing `Gap` when the\n\t/// track is shorter than `max_track_length`.\n\t///\n\t/// CPP-PARITY: saveotio.cpp (SaveOTIOTask::serialize_track)\n\tfn serialize_track(track: CHandle, sequence_rate: f64, max_track_length: Rational) -\u003e Option\u003cTrack\u003e {\n\t\tlet mut track_type = bridge::node::OAKNODE_TRACK_TYPE_NONE;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_track_get_type(track, \u0026mut track_type);\n\t\t}\n\n\t\tlet kind = match track_type {\n\t\t\tbridge::node::OAKNODE_TRACK_TYPE_VIDEO =\u003e \"Video\",\n\t\t\tbridge::node::OAKNODE_TRACK_TYPE_AUDIO =\u003e \"Audio\",\n\t\t\tother =\u003e {\n\t\t\t\teprintln!(\"Don't know OTIO track kind for native type {other}\");\n\t\t\t\treturn None;\n\t\t\t}\n\t\t};\n\t\tlet mut otio_track = Track::new(kind);\n\n\t\tlet mut block_count = 0;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_track_get_block_count(track, \u0026mut block_count);\n\t\t}\n\n\t\tfor i in 0..block_count {\n\t\t\tlet mut block = CHandle::null();\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_track_get_block_at(track, i, \u0026mut block);\n\t\t\t}\n\t\t\tif block.ctx.is_null() {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tlet mut kind = bridge::node::OAKNODE_BLOCK_OTHER;\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_block_get_kind(block, \u0026mut kind);\n\t\t\t}\n\n\t\t\tlet otio_block: Option\u003cComposable\u003e = match kind {\n\t\t\t\tbridge::node::OAKNODE_BLOCK_CLIP =\u003e {\n\t\t\t\t\tlet mut otio_clip = Clip::new(node_label_of(unsafe { bridge::node::oaknode_block_as_node(block) }));\n\n\t\t\t\t\totio_clip.set_source_range(TimeRange::new(\n\t\t\t\t\t\tRationalTime::from_rational(block_in_of(block), sequence_rate),\n\t\t\t\t\t\tRationalTime::from_rational(block_length_of(block), sequence_rate),\n\t\t\t\t\t));\n\n\t\t\t\t\tlet mut media = CHandle::null();\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::node::oaknode_node_find_input_footage(bridge::node::oaknode_block_as_node(block), \u0026mut media);\n\t\t\t\t\t}\n\t\t\t\t\tif !media.ctx.is_null() {\n\t\t\t\t\t\tlet available_range = if track_type == bridge::node::OAKNODE_TRACK_TYPE_VIDEO {\n\t\t\t\t\t\t\t// OTIO ExternalReference uses the source clips\n\t\t\t\t\t\t\t// frame rate (or sample rate) as opposed to the\n\t\t\t\t\t\t\t// sequences rate.\n\t\t\t\t\t\t\tlet mut source_frame_rate = 0.0f64;\n\t\t\t\t\t\t\tlet mut duration = 0.0f64;\n\t\t\t\t\t\t\tlet mut num = 0;\n\t\t\t\t\t\t\tlet mut den = 1;\n\t\t\t\t\t\t\tlet mut vp = CHandle::null();\n\t\t\t\t\t\t\tif unsafe { bridge::node::oaknode_footage_get_video_params(media, 0, \u0026mut vp) } == 0 {\n\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_get_frame_rate(vp, \u0026mut num, \u0026mut den);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tif den != 0 {\n\t\t\t\t\t\t\t\t\tsource_frame_rate = num as f64 / den as f64;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tlet mut dur = 0i64;\n\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_get_duration(vp, \u0026mut dur);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tduration = dur as f64;\n\t\t\t\t\t\t\t\tif !vp.ctx.is_null() {\n\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut vp);\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tTimeRange::new(\n\t\t\t\t\t\t\t\tRationalTime::new(0.0, source_frame_rate),\n\t\t\t\t\t\t\t\tRationalTime::new(duration, source_frame_rate),\n\t\t\t\t\t\t\t)\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tTimeRange::new(RationalTime::new(0.0, 48000.0), RationalTime::new(0.0, 48000.0))\n\t\t\t\t\t\t};\n\n\t\t\t\t\t\tlet media_url = footage_filename(media);\n\t\t\t\t\t\tif !media_url.is_empty() {\n\t\t\t\t\t\t\totio_clip.set_media_reference(MediaReference::ExternalReference(ExternalReference::new(\n\t\t\t\t\t\t\t\tmedia_url,\n\t\t\t\t\t\t\t\tSome(available_range),\n\t\t\t\t\t\t\t)));\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tSome(Composable::Clip(otio_clip))\n\t\t\t\t}\n\t\t\t\tbridge::node::OAKNODE_BLOCK_GAP =\u003e Some(Composable::Gap(Gap::new(\n\t\t\t\t\tTimeRange::new(\n\t\t\t\t\t\tRationalTime::from_rational(block_in_of(block), 24.0),\n\t\t\t\t\t\tRationalTime::from_rational(block_length_of(block), 24.0),\n\t\t\t\t\t),\n\t\t\t\t\tnode_label_of(unsafe { bridge::node::oaknode_block_as_node(block) }),\n\t\t\t\t))),\n\t\t\t\tbridge::node::OAKNODE_BLOCK_TRANSITION =\u003e {\n\t\t\t\t\tlet mut otio_transition = Transition::new(node_label_of(unsafe { bridge::node::oaknode_block_as_node(block) }));\n\n\t\t\t\t\tlet (n, d) = transition_offset_of(block, true);\n\t\t\t\t\totio_transition.set_in_offset(RationalTime::from_rational(Rational::new(n as i64, d as i64), 24.0));\n\t\t\t\t\tlet (n, d) = transition_offset_of(block, false);\n\t\t\t\t\totio_transition.set_out_offset(RationalTime::from_rational(Rational::new(n as i64, d as i64), 24.0));\n\n\t\t\t\t\tSome(Composable::Transition(otio_transition))\n\t\t\t\t}\n\t\t\t\t_ =\u003e None,\n\t\t\t};\n\n\t\t\tlet Some(otio_block) = otio_block else {\n\t\t\t\t// We shouldn't ever get here, but catch without crashing if\n\t\t\t\t// we ever do.\n\t\t\t\treturn None;\n\t\t\t};\n\n\t\t\totio_track.append_child(otio_block);\n\t\t}\n\n\t\t// All OTIO tracks must have the same duration so we add a Gap to\n\t\t// fill the remaining time.\n\t\tlet duration = track_duration(\u0026otio_track);\n\t\tlet duration_seconds = duration.clone().to_seconds();\n\t\tif duration_seconds \u003c max_track_length.to_f64() {\n\t\t\tlet time_left = max_track_length.to_f64() - duration_seconds;\n\n\t\t\tlet gap = Gap::new(TimeRange::new(duration, RationalTime::new(time_left, 1.0)), \"\");\n\t\t\totio_track.append_child(Composable::Gap(gap));\n\t\t}\n\n\t\tSome(otio_track)\n\t}\n}\n\nimpl TaskBehavior for SaveOTIOTask {\n\t/// Serialize the project to OTIO/FCPXML via `oakotio` and write the file.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Dispatch the interchange format from the filename extension.\n\t\t// Format handling ends at the write below — the serialization\n\t\t// produces `oakotio::Timeline`s and is shared between `.otio` and\n\t\t// `.fcpxml` (C++ parity for the serialize_* helpers).\n\t\tlet format = match InterchangeFormat::of(\u0026self.filename) {\n\t\t\tOk(f) =\u003e f,\n\t\t\tErr(e) =\u003e {\n\t\t\t\tif let Error::Failed(msg) = \u0026e {\n\t\t\t\t\ttask.set_error(msg);\n\t\t\t\t}\n\t\t\t\treturn Err(e);\n\t\t\t}\n\t\t};\n\n\t\t// Collect sequences from the root folder (non-recursive, matching\n\t\t// the original list_children_of_type behavior closely enough for\n\t\t// OTIO).\n\t\tlet root = unsafe { bridge::node::oaknode_project_root(self.project) };\n\t\tif root.ctx.is_null() {\n\t\t\ttask.set_error(\"Project contains no sequences to export.\");\n\t\t\treturn Err(Error::Failed(\"Project contains no sequences to export.\".to_string()));\n\t\t}\n\n\t\tlet mut sequences: Vec\u003cCHandle\u003e = Vec::new();\n\t\tlet child_count = unsafe { bridge::node::oaknode_folder_child_count(root) };\n\t\tfor i in 0..child_count {\n\t\t\tlet child = unsafe { bridge::node::oaknode_folder_child_at(root, i) };\n\t\t\tif child.ctx.is_null() {\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tif node_id_of(child) == bridge::node::OAKNODE_TYPE_SEQUENCE {\n\t\t\t\t// Borrowed sequence alias of the child node handle (all\n\t\t\t\t// oaknode handles share the same box layout).\n\t\t\t\tsequences.push(child);\n\t\t\t}\n\t\t}\n\n\t\tif sequences.is_empty() {\n\t\t\ttask.set_error(\"Project contains no sequences to export.\");\n\t\t\treturn Err(Error::Failed(\"Project contains no sequences to export.\".to_string()));\n\t\t}\n\n\t\tlet mut serialized: Vec\u003cTimeline\u003e = Vec::with_capacity(sequences.len());\n\t\tfor sequence in \u0026sequences {\n\t\t\tmatch Self::serialize_timeline(*sequence) {\n\t\t\t\tSome(timeline) =\u003e serialized.push(timeline),\n\t\t\t\tNone =\u003e {\n\t\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\t\"Failed to serialize sequence \\\"{}\\\"\",\n\t\t\t\t\t\tnode_label_of(unsafe { bridge::node::oaknode_sequence_as_node(*sequence) })\n\t\t\t\t\t));\n\t\t\t\t\treturn Err(Error::Failed(\"Failed to serialize sequence\".to_string()));\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Write the serialized timelines, dispatching on the format: OTIO\n\t\t// JSON writes a `Timeline` root for one sequence or a\n\t\t// `SerializableCollection` for several; FCPXML writes all timelines\n\t\t// into one document (one `\u003cproject\u003e` per timeline).\n\t\tlet result: std::result::Result\u003c(), String\u003e = match format {\n\t\t\tInterchangeFormat::OtioJson =\u003e {\n\t\t\t\tif serialized.len() == 1 {\n\t\t\t\t\tserialized[0].to_json_file(\u0026self.filename).map_err(|e| e.to_string())\n\t\t\t\t} else {\n\t\t\t\t\t// Serialize all into a SerializableCollection.\n\t\t\t\t\tlet collection = SerializableCollection::new(\n\t\t\t\t\t\t\"Sequences\",\n\t\t\t\t\t\tserialized.into_iter().map(Serializable::Timeline).collect(),\n\t\t\t\t\t);\n\t\t\t\t\tSerializable::SerializableCollection(collection)\n\t\t\t\t\t\t.to_json_file(\u0026self.filename)\n\t\t\t\t\t\t.map_err(|e| e.to_string())\n\t\t\t\t}\n\t\t\t}\n\t\t\tInterchangeFormat::Fcpxml =\u003e oakotio::to_fcpxml_file(\u0026serialized, \u0026self.filename).map_err(|e| e.to_string()),\n\t\t};\n\n\t\tresult.map_err(|e| {\n\t\t\tlet (label, what) = match format {\n\t\t\t\tInterchangeFormat::OtioJson =\u003e (\"Failed to save OpenTimelineIO to file\", \"Failed to save OpenTimelineIO\"),\n\t\t\t\tInterchangeFormat::Fcpxml =\u003e (\"Failed to save FCPXML to file\", \"Failed to save FCPXML\"),\n\t\t\t};\n\t\t\ttask.set_error(\u0026format!(\"{label} \\\"{}\\\": {e}\", self.filename));\n\t\t\tError::Failed(what.to_string())\n\t\t})\n\t}\n}\n\n/// Two-stage read of a node's label.\nfn node_label_of(node: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_node_get_label(node, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_node_get_label(node, buf.as_mut_ptr(), needed);\n\t}\n\tbuf_to_string(\u0026buf)\n}\n\n/// Two-stage read of a node's type id.\nfn node_id_of(node: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_node_get_id(node, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_node_get_id(node, buf.as_mut_ptr(), needed);\n\t}\n\tbuf_to_string(\u0026buf)\n}\n\n/// The block's in point as a `Rational` (default 0/1 when unset).\nfn block_in_of(block: CHandle) -\u003e Rational {\n\tlet mut n = 0;\n\tlet mut d = 1;\n\tunsafe {\n\t\tbridge::node::oaknode_block_get_in(block, \u0026mut n, \u0026mut d);\n\t}\n\tRational::new(n as i64, d as i64)\n}\n\n/// The block's length as a `Rational` (default 0/1 when unset).\nfn block_length_of(block: CHandle) -\u003e Rational {\n\tlet mut n = 0;\n\tlet mut d = 1;\n\tunsafe {\n\t\tbridge::node::oaknode_block_get_length(block, \u0026mut n, \u0026mut d);\n\t}\n\tRational::new(n as i64, d as i64)\n}\n\n/// The track's total length as a `Rational` (default 0/1 when unset).\nfn track_length_of(track: CHandle) -\u003e Rational {\n\tlet mut n = 0;\n\tlet mut d = 1;\n\tunsafe {\n\t\tbridge::node::oaknode_track_get_length(track, \u0026mut n, \u0026mut d);\n\t}\n\tRational::new(n as i64, d as i64)\n}\n\n/// A transition's in (`in_offset == true`) or out offset as a `Rational`.\nfn transition_offset_of(block: CHandle, in_offset: bool) -\u003e (i32, i32) {\n\tlet mut n = 0;\n\tlet mut d = 1;\n\tif in_offset {\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_transition_get_in_offset(block, \u0026mut n, \u0026mut d);\n\t\t}\n\t} else {\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_transition_get_out_offset(block, \u0026mut n, \u0026mut d);\n\t\t}\n\t}\n\t(n, d)\n}\n\n/// Two-stage read of a footage's filename (empty when unset).\nfn footage_filename(footage: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_footage_filename(footage, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_footage_filename(footage, buf.as_mut_ptr(), needed);\n\t}\n\tbuf_to_string(\u0026buf)\n}\n\n/// The serialized track's duration as an `OTIO::RationalTime` — the sum of\n/// its children's source-range durations, keeping the first child's rate\n/// (the C++ `otio_track-\u003eduration(\u0026es)` result for contiguous children).\nfn track_duration(track: \u0026Track) -\u003e RationalTime {\n\tlet mut acc: Option\u003cRationalTime\u003e = None;\n\tfor child in track.children() {\n\t\tlet duration = match child.as_clip().and_then(|c| c.source_range()).map(|r| r.duration())\n\t\t\t.or_else(|| child.as_gap().and_then(|g| g.source_range()).map(|r| r.duration()))\n\t\t{\n\t\t\tSome(d) =\u003e d,\n\t\t\t// Transitions occupy no time.\n\t\t\tNone =\u003e RationalTime::new(0.0, 1.0),\n\t\t};\n\t\tmatch acc {\n\t\t\tNone =\u003e acc = Some(duration),\n\t\t\tSome(a) =\u003e {\n\t\t\t\tlet rate = a.rate();\n\t\t\t\tlet value = a.value() + duration.rescaled_to(rate).value();\n\t\t\t\tacc = Some(RationalTime::new(value, 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! Project load/save/import tasks, mirroring `src/task/src/project/*`.\n//!\n//! These tasks move data across the oaknode C ABI: they borrow node handles\n//! while running and take ownership only on the `take_*` accessors\n//! (architectural decision #5 in README.md).\n\npub mod format;\npub mod import;\npub mod load;\npub mod loadotio;\npub mod save;\npub mod saveotio;\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","proxy.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ProxyTask`, mirroring `src/task/src/proxy/proxy.h`.\n//!\n//! Transcodes a video stream to a proxy via an external `ffmpeg` process\n//! (oakcodec kind `OAKCODEC_TASK_PROXY`). The two pure functions\n//! [`ProxyTask::build_arguments`] and [`ProxyTask::parse_progress`] are\n//! parity/golden candidates (see tests/parity_test.rs).\n//!\n//! CPP-PARITY: src/task/src/proxy/proxy.h\n\nuse std::io::{BufRead, BufReader};\nuse std::process::{Command, Stdio};\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\nuse crate::task::{Task, TaskBehavior};\n\n/// The proxy parameters, mirroring `oakcodec_proxy_params` in\n/// `include/codec/proxy.h` (kept as plain fields so no oakcodec handle is\n/// needed to build arguments).\npub struct ProxyParams {\n\t/// Target width (0 = unspecified/divider-based).\n\tpub width: i32,\n\t/// Target height (0 = unspecified/divider-based).\n\tpub height: i32,\n\t/// Resolution divider.\n\tpub divider: i32,\n\t/// Proxy format version.\n\tpub version: i32,\n\t/// CRF for the proxy encode.\n\tpub crf: i32,\n\t/// Whether audio is included in the proxy.\n\tpub include_audio: bool,\n\t/// Output container extension.\n\tpub extension: String,\n\t/// ffmpeg preset name.\n\tpub preset: String,\n}\n\n/// A proxy transcode task: runs `ffmpeg` with arguments from\n/// [`ProxyTask::build_arguments`], parsing progress lines via\n/// [`ProxyTask::parse_progress`].\npub struct ProxyTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Source media filename.\n\tpub source_filename: String,\n\t/// Target stream index.\n\tpub stream_index: i32,\n\t/// Proxy parameters.\n\tpub params: ProxyParams,\n\t/// Output proxy filename.\n\tpub output_filename: String,\n\t/// Total media duration in seconds (for progress scaling).\n\tduration_seconds: f64,\n}\n\nimpl ProxyTask {\n\t/// Build a proxy task from an oakcodec request and proxy params,\n\t/// mirroring the C++ constructor (divider-based requests take the source\n\t/// fraction).\n\tpub fn new(request: \u0026bridge::codec::OakCodecTaskRequest, params: ProxyParams) -\u003e ProxyTask {\n\t\tlet source = unsafe { crate::ffi::taskhandle::cstr_to_string(request.input_filename) };\n\t\tlet output = unsafe { crate::ffi::taskhandle::cstr_to_string(request.output_filename) };\n\t\tlet mut params = params;\n\t\tif request.proxy_width \u003e 0 \u0026\u0026 request.proxy_height \u003e 0 {\n\t\t\tparams.width = request.proxy_width;\n\t\t\tparams.height = request.proxy_height;\n\t\t\tparams.divider = 1;\n\t\t}\n\t\tlet title = format!(\"Generating Proxy {}:{}\", source, request.stream_index);\n\t\tProxyTask {\n\t\t\tbase: Task::new(\u0026title, CHandle::null()),\n\t\t\tsource_filename: source,\n\t\t\tstream_index: request.stream_index,\n\t\t\tparams,\n\t\t\toutput_filename: output,\n\t\t\tduration_seconds: 0.0,\n\t\t}\n\t}\n\n\t/// Build the `ffmpeg` command-line argument vector for the proxy\n\t/// transcode. Mirrors `build_arguments` in proxy.cpp; the exact ordering\n\t/// and flag spelling are parity-locked (golden test).\n\t///\n\t/// CPP-PARITY: src/task/src/proxy/proxy.cpp (build_arguments)\n\tpub fn build_arguments(\n\t\tsource_filename: \u0026str,\n\t\tstream_index: i32,\n\t\tparams: \u0026ProxyParams,\n\t\toutput_filename: \u0026str,\n\t) -\u003e Vec\u003cString\u003e {\n\t\tlet scale_filter = if params.divider \u003e 1 {\n\t\t\tformat!(\n\t\t\t\t\"scale=w=trunc(iw/{}/2)*2:h=trunc(ih/{}/2)*2\",\n\t\t\t\tparams.divider, params.divider\n\t\t\t)\n\t\t} else {\n\t\t\tformat!(\n\t\t\t\t\"scale=w={}:h={}:force_original_aspect_ratio=decrease\",\n\t\t\t\tparams.width, params.height\n\t\t\t)\n\t\t};\n\n\t\tlet container_format = if params.extension.is_empty() {\n\t\t\t\"mp4\".to_string()\n\t\t} else {\n\t\t\tparams.extension.clone()\n\t\t};\n\n\t\tlet mut args: Vec\u003cString\u003e = vec![\n\t\t\t\"-y\".to_string(),\n\t\t\t\"-nostats\".to_string(),\n\t\t\t\"-progress\".to_string(),\n\t\t\t\"pipe:1\".to_string(),\n\t\t\t\"-i\".to_string(),\n\t\t\tsource_filename.to_string(),\n\t\t\t\"-map\".to_string(),\n\t\t\tformat!(\"0:{stream_index}\"),\n\t\t];\n\n\t\tif params.include_audio {\n\t\t\targs.extend([\n\t\t\t\t\"-map\".to_string(),\n\t\t\t\t\"0:a?\".to_string(),\n\t\t\t\t\"-c:a\".to_string(),\n\t\t\t\t\"aac\".to_string(),\n\t\t\t\t\"-b:a\".to_string(),\n\t\t\t\t\"128k\".to_string(),\n\t\t\t]);\n\t\t} else {\n\t\t\targs.push(\"-an\".to_string());\n\t\t}\n\n\t\targs.extend([\n\t\t\t\"-vf\".to_string(),\n\t\t\tscale_filter,\n\t\t\t\"-c:v\".to_string(),\n\t\t\t\"libx264\".to_string(),\n\t\t\t\"-preset\".to_string(),\n\t\t\tparams.preset.clone(),\n\t\t\t\"-crf\".to_string(),\n\t\t\tparams.crf.to_string(),\n\t\t\t\"-pix_fmt\".to_string(),\n\t\t\t\"yuv420p\".to_string(),\n\t\t\t\"-movflags\".to_string(),\n\t\t\t\"+faststart\".to_string(),\n\t\t\t\"-f\".to_string(),\n\t\t\tcontainer_format,\n\t\t\toutput_filename.to_string(),\n\t\t]);\n\n\t\targs\n\t}\n\n\t/// Parse a single `ffmpeg -progress` output line into a progress value in\n\t/// 0.0..=1.0 given the total duration. Mirrors `parse_progress` in\n\t/// proxy.cpp (golden test).\n\t///\n\t/// CPP-PARITY: src/task/src/proxy/proxy.cpp (parse_progress)\n\tpub fn parse_progress(line: \u0026str, duration_seconds: f64) -\u003e Option\u003cf64\u003e {\n\t\tif duration_seconds \u003c= 0.0 {\n\t\t\treturn None;\n\t\t}\n\n\t\tlet out_time_us: i64 = if let Some(rest) = line.strip_prefix(\"out_time_us=\") {\n\t\t\trest.trim().parse().unwrap_or(-1)\n\t\t} else if let Some(rest) = line.strip_prefix(\"out_time_ms=\") {\n\t\t\t// Despite the name, ffmpeg reports this value in microseconds.\n\t\t\trest.trim().parse().unwrap_or(-1)\n\t\t} else {\n\t\t\t-1\n\t\t};\n\n\t\tif out_time_us \u003c 0 {\n\t\t\treturn None;\n\t\t}\n\n\t\tlet progress = out_time_us as f64 / 1_000_000.0 / duration_seconds;\n\t\tSome(if progress \u003c 0.0 {\n\t\t\t0.0\n\t\t} else if progress \u003e 1.0 {\n\t\t\t1.0\n\t\t} else {\n\t\t\tprogress\n\t\t})\n\t}\n}\n\nimpl TaskBehavior for ProxyTask {\n\t/// Spawn `ffmpeg` with the built arguments, feed `-progress` lines to\n\t/// [`ProxyTask::parse_progress`] and emit them as task progress.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet mut ffmpeg_buf = [0i8; 1024];\n\t\tlet found = unsafe {\n\t\t\tbridge::codec::oakcodec_proxy_find_ffmpeg(std::ptr::null(), ffmpeg_buf.as_mut_ptr(), ffmpeg_buf.len() as i32)\n\t\t};\n\t\tif found \u003c= 0 {\n\t\t\ttask.set_error(\n\t\t\t\t\"Failed to generate proxy: ffmpeg executable was not found. Set the ffmpeg path in Preferences \u003e Disk \u003e Proxy Settings.\",\n\t\t\t);\n\t\t\treturn Err(Error::Failed(\"ffmpeg executable was not found\".to_string()));\n\t\t}\n\t\tlet ffmpeg_path = buf_to_string(\u0026ffmpeg_buf);\n\n\t\t// Create the output directory if needed.\n\t\tif let Some(parent) = std::path::Path::new(\u0026self.output_filename).parent() {\n\t\t\tif !parent.as_os_str().is_empty() \u0026\u0026 !parent.exists() {\n\t\t\t\tif std::fs::create_dir_all(parent).is_err() {\n\t\t\t\t\ttask.set_error(\"Failed to create proxy output directory\");\n\t\t\t\t\treturn Err(Error::Failed(\"Failed to create proxy output directory\".to_string()));\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tlet _ = std::fs::remove_file(\u0026self.output_filename);\n\t\tlet working_filename = format!(\"{}.working.mp4\", self.output_filename);\n\t\tlet _ = std::fs::remove_file(\u0026working_filename);\n\n\t\tlet args = Self::build_arguments(\u0026self.source_filename, self.stream_index, \u0026self.params, \u0026working_filename);\n\n\t\t// Probe the source duration for progress scaling (0 when unknown).\n\t\tself.duration_seconds = probe_source_duration_seconds(\u0026ffmpeg_path, \u0026self.source_filename);\n\n\t\tlet mut command = Command::new(\u0026ffmpeg_path);\n\t\tcommand.args(\u0026args).stdout(Stdio::piped()).stderr(Stdio::piped());\n\t\tlet mut child = match command.spawn() {\n\t\t\tOk(child) =\u003e child,\n\t\t\tErr(_) =\u003e {\n\t\t\t\ttask.set_error(\"Failed to start ffmpeg for proxy generation\");\n\t\t\t\treturn Err(Error::Failed(\"Failed to start ffmpeg\".to_string()));\n\t\t\t}\n\t\t};\n\n\t\t// Drain stderr in a thread so a chatty ffmpeg cannot block us.\n\t\tlet stderr = child.stderr.take();\n\t\tif let Some(stderr) = stderr {\n\t\t\tstd::thread::spawn(move || {\n\t\t\t\tlet _ = BufReader::new(stderr).lines().count();\n\t\t\t});\n\t\t}\n\n\t\tlet stdout = child.stdout.take();\n\t\tlet mut last_progress = 0.0_f64;\n\t\tif let Some(stdout) = stdout {\n\t\t\tlet reader = BufReader::new(stdout);\n\t\t\tfor line in reader.lines() {\n\t\t\t\tmatch line {\n\t\t\t\t\tOk(line) =\u003e {\n\t\t\t\t\t\tif let Some(progress) = Self::parse_progress(\u0026line, self.duration_seconds) {\n\t\t\t\t\t\t\tif progress \u003e= 0.0 \u0026\u0026 progress - last_progress \u003e 0.001 {\n\t\t\t\t\t\t\t\tlast_progress = progress;\n\t\t\t\t\t\t\t\ttask.emit_progress(progress);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tErr(_) =\u003e break,\n\t\t\t\t}\n\t\t\t\tif task.is_cancelled() {\n\t\t\t\t\tlet _ = child.kill();\n\t\t\t\t\tlet _ = child.wait();\n\t\t\t\t\tlet _ = std::fs::remove_file(\u0026working_filename);\n\t\t\t\t\ttask.set_error(\"Proxy generation was cancelled\");\n\t\t\t\t\treturn Err(Error::Cancelled);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tlet exit_status = child.wait();\n\t\tif !matches!(exit_status, Ok(status) if status.success()) {\n\t\t\tlet _ = std::fs::remove_file(\u0026working_filename);\n\t\t\ttask.set_error(\"ffmpeg failed to generate proxy\");\n\t\t\treturn Err(Error::Failed(\"ffmpeg failed to generate proxy\".to_string()));\n\t\t}\n\n\t\tif !std::path::Path::new(\u0026working_filename).exists() {\n\t\t\ttask.set_error(\"ffmpeg finished but proxy file was not created\");\n\t\t\treturn Err(Error::Failed(\"ffmpeg finished but proxy file was not created\".to_string()));\n\t\t}\n\n\t\tif std::fs::rename(\u0026working_filename, \u0026self.output_filename).is_err() {\n\t\t\ttask.set_error(\"Failed to move proxy into place\");\n\t\t\treturn Err(Error::Failed(\"Failed to move proxy into place\".to_string()));\n\t\t}\n\n\t\ttask.emit_progress(1.0);\n\t\tOk(())\n\t}\n}\n\n/// Read a NUL-terminated C char buffer into a String.\nfn buf_to_string(buf: \u0026[i8]) -\u003e String {\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tunsafe { String::from_utf8_lossy(std::slice::from_raw_parts(buf.as_ptr() as *const u8, len)).into_owned() }\n}\n\n/// Probe the source duration via `ffprobe` next to ffmpeg; 0.0 when\n/// unavailable (in which case no intermediate progress is reported).\nfn probe_source_duration_seconds(ffmpeg_path: \u0026str, source_filename: \u0026str) -\u003e f64 {\n\tlet ffprobe = std::path::Path::new(ffmpeg_path).with_file_name(\"ffprobe\");\n\tif !ffprobe.exists() {\n\t\treturn 0.0;\n\t}\n\tlet output = Command::new(\u0026ffprobe)\n\t\t.args([\"-v\", \"error\", \"-show_entries\", \"format=duration\", \"-of\", \"default=noprint_wrappers=1:nokey=1\", source_filename])\n\t\t.output();\n\tmatch output {\n\t\tOk(out) if out.status.success() =\u003e {\n\t\t\tlet text = String::from_utf8_lossy(\u0026out.stdout);\n\t\t\ttext.trim().parse().unwrap_or(0.0)\n\t\t}\n\t\t_ =\u003e 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `RenderTask` abstract base, mirroring `src/task/src/render/render.h`.\n//!\n//! The abstract parent of [`crate::export::ExportTask`] and\n//! [`crate::precache::PreCacheTask`]. It renders frames/audio through\n//! oakrender tickets (`bridge::render`) and hands each result to a virtual\n//! hook (frame/audio downloaded, subtitle encoded) that the subclass\n//! implements via the [`RenderTaskBehavior`] trait.\n//!\n//! ## Concurrent render loop\n//!\n//! Like the C++ original (`render.cpp`), the loop keeps up to\n//! `max_inflight` tickets running at once (default\n//! `std::thread::available_parallelism()`, matching the C++\n//! `std::max(1, hardware_concurrency)`). Tickets report completion through\n//! the `oakrender_ticket_finished_fn` callback (fired on the ticket's own\n//! finishing thread), which pushes the finished ticket into a shared queue\n//! and wakes the render thread (queue + condvar, exactly the C++ design).\n//! Tickets may complete out of order; a **reorder buffer** delivers the\n//! results to the hooks in timestamp order — the audio range first (the C++\n//! queue-audio-first order), then every frame in ascending time — so the\n//! observable per-frame contract (`frame_downloaded`/`audio_downloaded` in\n//! order, progress updates, cancellation between frames) is unchanged.\n//!\n//! The ticket's finished callback hands the loop a **borrowed copy** of the\n//! submitter's handle (`include/render/ticket.h`: \"the submitter keeps\n//! ownership and releases it\"). The loop therefore releases exactly the\n//! handle value each submit function returns, once, and never releases the\n//! queue's borrowed copies. Cancellation (or a hook error) cancels and\n//! waits every in-flight ticket before returning, so every submitted\n//! ticket's completion still fires exactly once.\n//!\n//! CPP-PARITY: src/task/src/render/render.h\n\nuse std::collections::{HashMap, VecDeque};\nuse std::sync::atomic::{AtomicUsize, Ordering};\nuse std::sync::{Condvar, Mutex};\n\nuse crate::bridge;\nuse crate::bridge::common::OakColorTransform;\nuse crate::bridge::node::{cstr, OAKNODE_SEQUENCE_SAMPLES_INPUT, OAKNODE_SEQUENCE_TEXTURE_INPUT};\nuse crate::bridge::render::{OakRenderTicket, OakRenderVideoTicketParams};\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\nuse crate::task::Task;\nuse oakcore_rs::{Rational, TimeRange};\n\n/// `OAKRENDER_TICKET_VIDEO` (`include/render/ticket.h`).\nconst TICKET_VIDEO: i32 = 0;\n/// `OAKRENDER_TICKET_AUDIO` (`include/render/ticket.h`).\nconst TICKET_AUDIO: i32 = 1;\n\n/// Overrides applied to a render ticket, mirroring the C++ `ForceParams`\n/// struct in render.h (fields map onto `oakrender_video_ticket_params`).\n///\n/// CPP-PARITY: src/task/src/render/render.h (ForceParams)\n#[derive(Clone, Debug, Default)]\npub struct ForceParams {\n\t/// Forced output width (0 = off).\n\tpub force_width: i32,\n\t/// Forced output height (0 = off).\n\tpub force_height: i32,\n\t/// Forced color matrix (row-major 4x4); only used when\n\t/// `has_force_matrix` is set.\n\tpub force_matrix: [f64; 16],\n\t/// Whether `force_matrix` is in effect.\n\tpub has_force_matrix: bool,\n\t/// Forced pixel format (`oakcore_rs::PixelFormat` as int; -1 = off).\n\tpub force_format: i32,\n\t/// Forced channel count (0 = off).\n\tpub force_channel_count: i32,\n\t/// Forced color output (borrowed `OakColorProcessor`; empty = none).\n\tpub force_color_output: CHandle,\n}\n\n/// Subclass hooks, standing in for the C++ protected virtuals\n/// `download_frame`/`frame_downloaded`/`audio_downloaded`/`encode_subtitle`.\npub trait RenderTaskBehavior {\n\t/// Called for each rendered frame.\n\tfn frame_downloaded(\u0026mut self, task: \u0026mut Task, frame: CHandle) -\u003e Result\u003c()\u003e;\n\t/// Called for each rendered audio buffer.\n\tfn audio_downloaded(\u0026mut self, task: \u0026mut Task, buffer: CHandle) -\u003e Result\u003c()\u003e;\n\t/// Called to encode a subtitle.\n\tfn encode_subtitle(\u0026mut self, task: \u0026mut Task, text: \u0026str) -\u003e Result\u003c()\u003e;\n}\n\n/// The abstract render task base. Holds the shared [`Task`], the sequence\n/// output params, the viewer node, and the subclass behavior.\npub struct RenderTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Output video params (borrowed `OakVideoParams`).\n\tpub video_params: CHandle,\n\t/// Output audio params (borrowed `OakAudioParams`; may be empty).\n\tpub audio_params: CHandle,\n\t/// The viewer node being rendered (borrowed `OakNodeNode`).\n\tpub viewer: CHandle,\n\t/// Force params applied to every ticket.\n\tpub force_params: ForceParams,\n\t/// The subclass behavior.\n\tpub behavior: Option\u003cBox\u003cdyn RenderTaskBehavior + Send\u003e\u003e,\n\t// --- private render inputs (set by the subclass before render()) ---\n\t/// Borrowed color manager.\n\tcolor_manager: CHandle,\n\t/// Borrowed frame cache.\n\tcache: CHandle,\n\t/// `olive::RenderMode::Mode` as int.\n\tmode: i32,\n\t/// Whether audio ranges are rendered.\n\taudio_enabled: bool,\n\t/// The range rendered by [`RenderTask::render`].\n\texport_range: TimeRange,\n\t/// Whether the render loop emits progress itself (the export task\n\t/// disables it and reports progress per written frame).\n\tnative_progress_signalling: bool,\n\t/// Total number of frames in `export_range` (computed by `render`).\n\ttotal_frames: i64,\n\t/// Maximum render tickets kept in flight at once (the C++\n\t/// `maximum_rendered_frames`; defaults to `available_parallelism`).\n\tmax_inflight: usize,\n}\n\nimpl RenderTask {\n\t/// Create a render task with default (empty) render inputs.\n\tpub fn new(\n\t\tbase: Task,\n\t\tvideo_params: CHandle,\n\t\taudio_params: CHandle,\n\t\tviewer: CHandle,\n\t\tforce_params: ForceParams,\n\t\tbehavior: Option\u003cBox\u003cdyn RenderTaskBehavior + Send\u003e\u003e,\n\t) -\u003e RenderTask {\n\t\tRenderTask {\n\t\t\tbase,\n\t\t\tvideo_params,\n\t\t\taudio_params,\n\t\t\tviewer,\n\t\t\tforce_params,\n\t\t\tbehavior,\n\t\t\tcolor_manager: CHandle::null(),\n\t\t\tcache: CHandle::null(),\n\t\t\tmode: 0,\n\t\t\taudio_enabled: false,\n\t\t\texport_range: TimeRange::new(Rational::new(0, 1), Rational::new(0, 1)),\n\t\t\tnative_progress_signalling: true,\n\t\t\ttotal_frames: 0,\n\t\t\tmax_inflight: std::thread::available_parallelism().map(|n| n.get()).unwrap_or(1).max(1),\n\t\t}\n\t}\n\n\t/// Configure the render inputs before [`RenderTask::render`] (called by\n\t/// the concrete subclasses' `run`).\n\tpub fn set_render_inputs(\n\t\t\u0026mut self,\n\t\tcolor_manager: CHandle,\n\t\tcache: CHandle,\n\t\tmode: i32,\n\t\taudio_enabled: bool,\n\t\texport_range: TimeRange,\n\t) {\n\t\tself.color_manager = color_manager;\n\t\tself.cache = cache;\n\t\tself.mode = mode;\n\t\tself.audio_enabled = audio_enabled;\n\t\tself.export_range = export_range;\n\t}\n\n\t/// Enable/disable the render loop's own progress signalling.\n\tpub fn set_native_progress_signalling(\u0026mut self, enabled: bool) {\n\t\tself.native_progress_signalling = enabled;\n\t}\n\n\t/// Override the number of render tickets kept in flight at once.\n\t///\n\t/// Defaults to `std::thread::available_parallelism()`, mirroring the\n\t/// C++ `std::max(1, int(std::thread::hardware_concurrency()))`. Primarily\n\t/// a test hook: a smaller window makes concurrent-completion tests\n\t/// deterministic regardless of the host core count.\n\tpub fn set_max_inflight(\u0026mut self, max: usize) {\n\t\tself.max_inflight = max.max(1);\n\t}\n\n\t/// The number of frames computed by the last [`RenderTask::render`] run.\n\tpub fn total_frames(\u0026self) -\u003e i64 {\n\t\tself.total_frames\n\t}\n\n\t/// Frame duration rational from the video params (falls back to 1/1\n\t/// when the params are empty/invalid).\n\tfn timebase(\u0026self) -\u003e Rational {\n\t\tlet mut num = 0;\n\t\tlet mut den = 1;\n\t\tunsafe {\n\t\t\tbridge::common::oakcommon_videoparams_frame_rate_as_time_base(\n\t\t\t\tself.video_params,\n\t\t\t\t\u0026mut num,\n\t\t\t\t\u0026mut den,\n\t\t\t);\n\t\t}\n\t\tif num \u003c= 0 || den \u003c= 0 {\n\t\t\tRational::new(1, 1)\n\t\t} else {\n\t\t\tRational::new(num as i64, den as i64)\n\t\t}\n\t}\n\n\t/// Submit one video frame ticket at `time` (mirrors the C++\n\t/// `start_video_ticket`). `dispatch` is the shared completion channel\n\t/// handed to the ticket's finished callback.\n\tfn submit_video_ticket(\n\t\t\u0026self,\n\t\ttime: Rational,\n\t\tdispatch: *mut RenderDispatch,\n\t) -\u003e Result\u003cOakRenderTicket\u003e {\n\t\tlet mut output_node = CHandle::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_input_get_connected_node(\n\t\t\t\tself.viewer,\n\t\t\t\tcstr(OAKNODE_SEQUENCE_TEXTURE_INPUT),\n\t\t\t\t\u0026mut output_node,\n\t\t\t);\n\t\t}\n\t\tif output_node.ctx.is_null() {\n\t\t\treturn Err(Error::Failed(\"No node connected to the viewer output\".to_string()));\n\t\t}\n\n\t\tlet audio_params_ptr = if self.audio_params.ctx.is_null() {\n\t\t\tstd::ptr::null()\n\t\t} else {\n\t\t\t\u0026self.audio_params as *const CHandle\n\t\t};\n\t\tlet force = \u0026self.force_params;\n\t\tlet params = OakRenderVideoTicketParams {\n\t\t\toutput_node,\n\t\t\tvideo_params: self.video_params,\n\t\t\taudio_params: audio_params_ptr,\n\t\t\ttime_num: time.numerator(),\n\t\t\ttime_den: time.denominator(),\n\t\t\tcolor_manager: self.color_manager,\n\t\t\tmode: self.mode,\n\t\t\tforce_width: force.force_width,\n\t\t\tforce_height: force.force_height,\n\t\t\tforce_matrix: force.force_matrix,\n\t\t\thas_force_matrix: if force.has_force_matrix { 1 } else { 0 },\n\t\t\tforce_format: force.force_format,\n\t\t\tforce_channel_count: force.force_channel_count,\n\t\t\tforce_color_output: bridge::render::OakColorProcessor::from_chandle(force.force_color_output),\n\t\t\tforce_color_transform: OakColorTransform {\n\t\t\t\tctx: std::ptr::null_mut(),\n\t\t\t\taddref: None,\n\t\t\t\trelease: None,\n\t\t\t\tabi_version: 0,\n\t\t\t},\n\t\t\tcache: bridge::render::OakRenderCache::from_chandle(self.cache),\n\t\t};\n\n\t\tlet ticket = unsafe {\n\t\t\tbridge::render::oakrender_ticket_render_frame(\n\t\t\t\t\u0026params,\n\t\t\t\tSome(ticket_finished),\n\t\t\t\tdispatch as *mut std::ffi::c_void,\n\t\t\t)\n\t\t};\n\t\t// Per-frame call: release the borrowed handle box (the ticket keeps\n\t\t// the native node, not the handle).\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_free(\u0026mut output_node);\n\t\t}\n\t\tif ticket.ctx.is_null() {\n\t\t\treturn Err(Error::Failed(\"Failed to start frame render ticket\".to_string()));\n\t\t}\n\t\tOk(ticket)\n\t}\n\n\t/// Submit one audio ticket for `range` (the Rust API renders a single\n\t/// range; the C++ submits one ticket per audio range).\n\tfn submit_audio_ticket(\n\t\t\u0026self,\n\t\trange: TimeRange,\n\t\tdispatch: *mut RenderDispatch,\n\t) -\u003e Result\u003cOakRenderTicket\u003e {\n\t\tlet mut output_node = CHandle::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_input_get_connected_node(\n\t\t\t\tself.viewer,\n\t\t\t\tcstr(OAKNODE_SEQUENCE_SAMPLES_INPUT),\n\t\t\t\t\u0026mut output_node,\n\t\t\t);\n\t\t}\n\t\tif output_node.ctx.is_null() {\n\t\t\treturn Err(Error::Failed(\"No node connected to the viewer samples input\".to_string()));\n\t\t}\n\n\t\tlet audio_params_ptr = if self.audio_params.ctx.is_null() {\n\t\t\tstd::ptr::null()\n\t\t} else {\n\t\t\t\u0026self.audio_params as *const CHandle\n\t\t};\n\t\tlet ticket = unsafe {\n\t\t\tbridge::render::oakrender_ticket_render_audio(\n\t\t\t\toutput_node,\n\t\t\t\trange.in_().numerator(),\n\t\t\t\trange.in_().denominator(),\n\t\t\t\trange.out().numerator(),\n\t\t\t\trange.out().denominator(),\n\t\t\t\taudio_params_ptr,\n\t\t\t\tself.mode,\n\t\t\t\tSome(ticket_finished),\n\t\t\t\tdispatch as *mut std::ffi::c_void,\n\t\t\t)\n\t\t};\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_free(\u0026mut output_node);\n\t\t}\n\t\tif ticket.ctx.is_null() {\n\t\t\treturn Err(Error::Failed(\"Failed to start audio render ticket\".to_string()));\n\t\t}\n\t\tOk(ticket)\n\t}\n\n\t/// Submit a video ticket and account it as in-flight.\n\t///\n\t/// The in-flight count is bumped **before** the submit: a ticket can\n\t/// complete synchronously (its callback fires before the submit returns),\n\t/// so the callback's decrement must always see its increment. A failed\n\t/// submit (null ticket) never fires a callback, so the bump is rolled\n\t/// back.\n\tfn start_video_ticket(\n\t\t\u0026self,\n\t\ttime: Rational,\n\t\tdispatch: *mut RenderDispatch,\n\t\tin_flight: \u0026mut Vec\u003cOakRenderTicket\u003e,\n\t) -\u003e Result\u003c()\u003e {\n\t\tunsafe {\n\t\t\t(\u0026*dispatch).running.fetch_add(1, Ordering::SeqCst);\n\t\t}\n\t\tmatch self.submit_video_ticket(time, dispatch) {\n\t\t\tOk(ticket) =\u003e {\n\t\t\t\tin_flight.push(ticket);\n\t\t\t\tOk(())\n\t\t\t}\n\t\t\tErr(e) =\u003e {\n\t\t\t\tunsafe {\n\t\t\t\t\t(\u0026*dispatch).running.fetch_sub(1, Ordering::SeqCst);\n\t\t\t\t}\n\t\t\t\tErr(e)\n\t\t\t}\n\t\t}\n\t}\n\n\t/// Submit the audio ticket and account it as in-flight (see\n\t/// [`RenderTask::start_video_ticket`] for the counting contract).\n\tfn start_audio_ticket(\n\t\t\u0026self,\n\t\trange: TimeRange,\n\t\tdispatch: *mut RenderDispatch,\n\t\tin_flight: \u0026mut Vec\u003cOakRenderTicket\u003e,\n\t) -\u003e Result\u003c()\u003e {\n\t\tunsafe {\n\t\t\t(\u0026*dispatch).running.fetch_add(1, Ordering::SeqCst);\n\t\t}\n\t\tmatch self.submit_audio_ticket(range, dispatch) {\n\t\t\tOk(ticket) =\u003e {\n\t\t\t\tin_flight.push(ticket);\n\t\t\t\tOk(())\n\t\t\t}\n\t\t\tErr(e) =\u003e {\n\t\t\t\tunsafe {\n\t\t\t\t\t(\u0026*dispatch).running.fetch_sub(1, Ordering::SeqCst);\n\t\t\t\t}\n\t\t\t\tErr(e)\n\t\t\t}\n\t\t}\n\t}\n\n\t/// Map a finished ticket back to its delivery slot: the audio slot for\n\t/// audio tickets, the matching frame slot for video tickets.\n\tfn classify_ticket(\n\t\t\u0026self,\n\t\tticket: \u0026OakRenderTicket,\n\t\tslot_by_key: \u0026HashMap\u003c(i32, i64, i64), usize\u003e,\n\t) -\u003e Option\u003cusize\u003e {\n\t\tlet kind = unsafe { bridge::render::oakrender_ticket_get_type(*ticket) };\n\t\tif kind == TICKET_AUDIO {\n\t\t\tlet mut a = 0i64;\n\t\t\tlet mut b = 1i64;\n\t\t\tlet mut c = 0i64;\n\t\t\tlet mut d = 1i64;\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_ticket_get_range(*ticket, \u0026mut a, \u0026mut b, \u0026mut c, \u0026mut d);\n\t\t\t}\n\t\t\tslot_by_key.get(\u0026(TICKET_AUDIO, a, b)).copied()\n\t\t} else if kind == TICKET_VIDEO {\n\t\t\tlet mut n = 0i64;\n\t\t\tlet mut d = 1i64;\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_ticket_get_time(*ticket, \u0026mut n, \u0026mut d);\n\t\t\t}\n\t\t\tslot_by_key.get(\u0026(TICKET_VIDEO, n, d)).copied()\n\t\t} else {\n\t\t\tNone\n\t\t}\n\t}\n\n\t/// Drive the whole render: keep up to `max_inflight` frame tickets in\n\t/// flight (audio first, then frames in timestamp order), deliver each\n\t/// finished ticket's result to the behavior hooks in timestamp order via\n\t/// the reorder buffer, and stop on cancellation or a hook error —\n\t/// cancelling and waiting every still-running ticket so their\n\t/// completions fire exactly once.\n\t///\n\t/// `task` is the live driving task (cancellation/progress/error\n\t/// reporting); `behavior` is the concrete subclass receiving the\n\t/// `frame_downloaded`/`audio_downloaded` hooks.\n\tpub fn render(\u0026mut self, task: \u0026mut Task, behavior: \u0026mut dyn RenderTaskBehavior) -\u003e Result\u003c()\u003e {\n\t\tlet timebase = self.timebase();\n\n\t\t// Compute the frame timestamps (progress denominator mirrors the\n\t\t// C++ `total_length \u003c= 0 -\u003e 1` guard).\n\t\tlet mut frame_times: Vec\u003cRational\u003e = Vec::new();\n\t\tlet mut t = self.export_range.in_();\n\t\twhile t \u003c self.export_range.out() {\n\t\t\tframe_times.push(t);\n\t\t\tt = t + timebase;\n\t\t}\n\t\tself.total_frames = frame_times.len() as i64;\n\t\tlet total_length = if frame_times.is_empty() { 1.0 } else { frame_times.len() as f64 };\n\n\t\t// Delivery order: the audio range first (mirrors the C++ queue\n\t\t// order), then every frame in ascending timestamp order. The reorder\n\t\t// buffer delivers to the hooks in exactly this order no matter the\n\t\t// completion order.\n\t\tlet mut slots: Vec\u003cDeliverySlot\u003e = Vec::new();\n\t\tif self.audio_enabled {\n\t\t\tslots.push(DeliverySlot {\n\t\t\t\tkind: TICKET_AUDIO,\n\t\t\t\ttime: self.export_range.in_(),\n\t\t\t});\n\t\t}\n\t\tfor \u0026ft in \u0026frame_times {\n\t\t\tslots.push(DeliverySlot {\n\t\t\t\tkind: TICKET_VIDEO,\n\t\t\t\ttime: ft,\n\t\t\t});\n\t\t}\n\t\tlet mut slot_by_key: HashMap\u003c(i32, i64, i64), usize\u003e = HashMap::with_capacity(slots.len());\n\t\tfor (i, slot) in slots.iter().enumerate() {\n\t\t\tslot_by_key.insert((slot.kind, slot.time.numerator(), slot.time.denominator()), i);\n\t\t}\n\t\tlet total_slots = slots.len();\n\n\t\t// The shared completion channel. Heap-allocated: the C callback\n\t\t// reaches it through its `userdata` pointer. Freed only once every\n\t\t// in-flight ticket has fired its callback (`running == 0`).\n\t\tlet dispatch = Box::into_raw(Box::new(RenderDispatch::new()));\n\t\t// Shared view of the same state for the render thread (the raw\n\t\t// pointer stays valid until the box is freed below).\n\t\tlet dispatch_ref = unsafe { \u0026*dispatch };\n\t\tlet window = self.max_inflight.max(1);\n\n\t\t// Tickets we hold (the submitter's copy of each handle, released\n\t\t// exactly once at the end); `consumed` counts tickets whose finished\n\t\t// queue copy has been popped, so `in_flight.len() - consumed` is the\n\t\t// live window.\n\t\tlet mut in_flight: Vec\u003cOakRenderTicket\u003e = Vec::new();\n\t\tlet mut consumed = 0usize;\n\t\t// Next frame timestamp to submit and next delivery slot.\n\t\tlet mut next_frame_index = 0usize;\n\t\tlet mut next_slot = 0usize;\n\t\t// Reorder buffer: finished tickets not yet deliverable.\n\t\tlet mut pending: HashMap\u003cusize, OakRenderTicket\u003e = HashMap::new();\n\t\tlet mut progress_counter = 0.0;\n\t\tlet mut result: Result\u003c()\u003e = Ok(());\n\n\t\t// Queue audio first (mirrors the C++ order).\n\t\tif self.audio_enabled \u0026\u0026 result.is_ok() {\n\t\t\tif let Err(e) = self.start_audio_ticket(self.export_range, dispatch, \u0026mut in_flight) {\n\t\t\t\tresult = Err(e);\n\t\t\t}\n\t\t}\n\n\t\t// Start the initial frame window.\n\t\tif result.is_ok() {\n\t\t\twhile in_flight.len() \u003c window \u0026\u0026 next_frame_index \u003c frame_times.len() {\n\t\t\t\tif let Err(e) =\n\t\t\t\t\tself.start_video_ticket(frame_times[next_frame_index], dispatch, \u0026mut in_flight)\n\t\t\t\t{\n\t\t\t\t\tresult = Err(e);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tnext_frame_index += 1;\n\t\t\t}\n\t\t}\n\n\t\twhile result.is_ok() \u0026\u0026 !task.is_cancelled() \u0026\u0026 next_slot \u003c total_slots {\n\t\t\t// Drain the completion queue into the reorder buffer.\n\t\t\twhile let Some(ticket) = dispatch_ref.pop_finished() {\n\t\t\t\tconsumed += 1;\n\t\t\t\tmatch self.classify_ticket(\u0026ticket, \u0026slot_by_key) {\n\t\t\t\t\tSome(slot_index) =\u003e {\n\t\t\t\t\t\tpending.insert(slot_index, ticket);\n\t\t\t\t\t}\n\t\t\t\t\tNone =\u003e {\n\t\t\t\t\t\tresult = Err(Error::Failed(\n\t\t\t\t\t\t\t\"Render ticket reported an unexpected timestamp\".to_string(),\n\t\t\t\t\t\t));\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tif result.is_err() {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Deliver contiguous results in the observable (timestamp) order.\n\t\t\twhile let Some(ticket) = pending.remove(\u0026next_slot) {\n\t\t\t\tlet slot = \u0026slots[next_slot];\n\t\t\t\tif slot.kind == TICKET_AUDIO {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::render::oakrender_ticket_get_samples(ticket, std::ptr::null_mut());\n\t\t\t\t\t}\n\t\t\t\t\tif let Err(e) = behavior.audio_downloaded(task, CHandle::null()) {\n\t\t\t\t\t\tresult = Err(e);\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tlet mut frame = CHandle::null();\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::render::oakrender_ticket_get_frame(ticket, \u0026mut frame);\n\t\t\t\t\t}\n\t\t\t\t\tif let Err(e) = behavior.frame_downloaded(task, frame) {\n\t\t\t\t\t\tresult = Err(e);\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t\tif !frame.ctx.is_null() {\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::render::oakrender_codec_frame_free(\u0026mut frame);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tif self.native_progress_signalling {\n\t\t\t\t\t\tprogress_counter += 1.0;\n\t\t\t\t\t\ttask.emit_progress(progress_counter / total_length);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tnext_slot += 1;\n\t\t\t}\n\t\t\tif result.is_err() || task.is_cancelled() {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Refill the window: one new ticket per delivered frame.\n\t\t\twhile in_flight.len().saturating_sub(consumed) \u003c window\n\t\t\t\t\u0026\u0026 next_frame_index \u003c frame_times.len()\n\t\t\t{\n\t\t\t\tif let Err(e) =\n\t\t\t\t\tself.start_video_ticket(frame_times[next_frame_index], dispatch, \u0026mut in_flight)\n\t\t\t\t{\n\t\t\t\t\tresult = Err(e);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tnext_frame_index += 1;\n\t\t\t}\n\t\t\tif result.is_err() {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tif next_slot \u003e= total_slots {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Wait for the next completion (a cancellation or a hook error\n\t\t\t// aborts the wait; in-flight tickets then finish, waking us).\n\t\t\tlet mut guard = dispatch_ref.finished.lock().unwrap_or_else(|e| e.into_inner());\n\t\t\twhile guard.is_empty()\n\t\t\t\t\u0026\u0026 dispatch_ref.running.load(Ordering::SeqCst) \u003e 0\n\t\t\t\t\u0026\u0026 !task.is_cancelled()\n\t\t\t{\n\t\t\t\tguard = dispatch_ref.cv.wait(guard).unwrap_or_else(|e| e.into_inner());\n\t\t\t}\n\t\t\tdrop(guard);\n\t\t\tif dispatch_ref.finished.lock().unwrap_or_else(|e| e.into_inner()).is_empty()\n\t\t\t\t\u0026\u0026 dispatch_ref.running.load(Ordering::SeqCst) == 0\n\t\t\t{\n\t\t\t\t// Every ticket finished and its queue copy was consumed.\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\t// Cancellation that aborted the loop before every slot was delivered\n\t\t// maps to the cancellation error (the sync loop returned\n\t\t// `Error::Cancelled` from its between-frames check; a render that\n\t\t// finished every frame despite a late cancel stays successful).\n\t\tif result.is_ok() \u0026\u0026 task.is_cancelled() \u0026\u0026 next_slot \u003c total_slots {\n\t\t\tresult = Err(Error::Cancelled);\n\t\t}\n\n\t\t// Tear down. On cancellation or error, cancel and wait every ticket\n\t\t// still in flight (the C++ abort path), so their completions still\n\t\t// fire exactly once. Then wait until every callback has returned,\n\t\t// release the submitter's handles, and free the completion channel.\n\t\tif result.is_err() || task.is_cancelled() {\n\t\t\tfor \u0026ticket in \u0026in_flight {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::render::oakrender_ticket_cancel(ticket);\n\t\t\t\t\tbridge::render::oakrender_ticket_wait(ticket);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tdispatch_ref.wait_idle();\n\t\tfor ticket in in_flight.iter_mut() {\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_ticket_free(ticket);\n\t\t\t}\n\t\t}\n\t\tunsafe {\n\t\t\tdrop(Box::from_raw(dispatch));\n\t\t}\n\n\t\tresult\n\t}\n\n\t/// A detached render state used while a concrete task temporarily moves\n\t/// its render out of itself to drive it with itself as the behavior\n\t/// (avoids a self-referential borrow). Never used for actual rendering.\n\tpub(crate) fn placeholder() -\u003e RenderTask {\n\t\tRenderTask::new(\n\t\t\tTask::new(\"\", CHandle::null()),\n\t\t\tCHandle::null(),\n\t\t\tCHandle::null(),\n\t\t\tCHandle::null(),\n\t\t\tForceParams::default(),\n\t\t\tNone,\n\t\t)\n\t}\n}\n\n/// One deliverable unit of the render: an audio range or a frame time, in\n/// the observable delivery order (audio first, then frames in time order).\nstruct DeliverySlot {\n\t/// `TICKET_AUDIO` or `TICKET_VIDEO`.\n\tkind: i32,\n\t/// Frame time (video) or range start (audio).\n\ttime: Rational,\n}\n\n/// Shared state between the render thread and the ticket-finished\n/// callbacks (the ticket's async return channel, mirroring the C++\n/// `finished_mutex_`/`finished_tickets_`/`finished_wait_cond_`). One\n/// instance per [`RenderTask::render`] run, reached from the C callback\n/// through its `userdata` pointer; heap-allocated for the run and freed\n/// only after every in-flight ticket has fired (`running == 0`).\nstruct RenderDispatch {\n\t/// Finished tickets in completion order (callbacks push here).\n\tfinished: Mutex\u003cVecDeque\u003cOakRenderTicket\u003e\u003e,\n\t/// Tickets whose completion callback has not fired yet.\n\trunning: AtomicUsize,\n\t/// Wakes the render thread when a ticket finishes.\n\tcv: Condvar,\n}\n\nimpl RenderDispatch {\n\tfn new() -\u003e RenderDispatch {\n\t\tRenderDispatch {\n\t\t\tfinished: Mutex::new(VecDeque::new()),\n\t\t\trunning: AtomicUsize::new(0),\n\t\t\tcv: Condvar::new(),\n\t\t}\n\t}\n\n\t/// Pop the next finished ticket (the callback's borrowed copy; `None`\n\t/// when the queue is empty).\n\tfn pop_finished(\u0026self) -\u003e Option\u003cOakRenderTicket\u003e {\n\t\tself.finished\n\t\t\t.lock()\n\t\t\t.unwrap_or_else(|e| e.into_inner())\n\t\t\t.pop_front()\n\t}\n\n\t/// Block until every submitted ticket has fired its callback. Called\n\t/// before freeing `self`, so no callback can touch the state afterwards.\n\tfn wait_idle(\u0026self) {\n\t\tlet mut guard = self.finished.lock().unwrap_or_else(|e| e.into_inner());\n\t\twhile self.running.load(Ordering::SeqCst) \u003e 0 {\n\t\t\tguard = self.cv.wait(guard).unwrap_or_else(|e| e.into_inner());\n\t\t}\n\t}\n}\n\n/// Ticket-finished callback, mirroring the C++ `on_ticket_finished`. Fires\n/// on the ticket's finishing thread; pushes the ticket's borrowed handle\n/// copy into the completion queue and wakes the render thread. 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See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! The `Task` base class, mirroring `src/task/src/task.h` (`olive::Task`).\n//!\n//! The C++ class is abstract with a protected virtual `run()`. In Rust each\n//! concrete task (`ConformTask`, `ProxyTask`, …) is its own struct and the\n//! shared lifecycle lives here; the per-task work is supplied through\n//! [`TaskBehavior`] (a trait object, per architectural decision #1 in\n//! README.md). Cancellation rides on a borrowed oakrender `OakCancelAtom`\n//! reached through `crate::bridge::render`.\n//!\n//! CPP-PARITY: src/task/src/task.h\n//!\n//! ## Concurrency contract\n//!\n//! Like the C++ original, the task's `title`/`error` strings are mutated on\n//! the task's own thread (`run()`). The C ABI layer must therefore only read\n//! them while the task is not concurrently running — i.e. before\n//! [`Task::start`] or after the task finished (the `finished` flag is\n//! synchronized through the `done` condvar, so `is_finished()`/\n//! `succeeded()` are always race-free). This mirrors the C++ semantics\n//! exactly.\n\nuse std::sync::atomic::{AtomicI64, Ordering};\nuse std::sync::{Arc, Condvar, Mutex};\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\n\n/// Event type emitted through a task's [`EventListener`], mirroring the\n/// C++ `EventType` enum (`k_event_started`/`k_event_progress`/`k_event_finished`).\n///\n/// CPP-PARITY: src/task/src/task.h (EventType)\n#[derive(Clone, Copy, Debug, PartialEq)]\npub enum TaskEvent {\n\t/// Task began executing.\n\tStarted,\n\t/// Progress updated; the payload is in 0.0..=1.0.\n\tProgress(f64),\n\t/// Task finished (success or failure).\n\tFinished,\n}\n\n/// A listener notified of [`TaskEvent`]s, mirroring the C++\n/// `std::function\u003cvoid(EventType,double)\u003e` listener. Delivered under the\n/// task's lock; kept as the single async return channel (decision #3).\n///\n/// CPP-PARITY: src/task/src/task.h (EventListener)\npub type EventListener = Box\u003cdyn FnMut(TaskEvent) + Send\u003e;\n\n/// Trait supplying the per-task work, standing in for the C++ protected\n/// virtual `run()`. Concrete tasks implement this; [`Task::start`] drives it.\n///\n/// CPP-PARITY: src/task/src/task.h (run)\npub trait TaskBehavior {\n\t/// Perform the task's work. Returning `Err(Error::Cancelled)` is treated\n\t/// as a cancellation; any other `Err` marks the task failed.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e;\n}\n\n/// Values the subscribe wrapper needs to re-encode [`TaskEvent`]s into the\n/// C ABI callback signature `(event_id, value, userdata)`. 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Owns lifecycle state plus a borrowed oakrender cancel\n/// atom; the concrete behavior lives in a [`TaskBehavior`] trait object.\npub struct Task {\n\ttitle: String,\n\terror: Option\u003cString\u003e,\n\tstart_time: Option\u003cstd::time::Instant\u003e,\n\tcancel_atom: CHandle,\n\towns_atom: bool,\n\tevent_listener: Option\u003cEventListener\u003e,\n\tcancel_event: Option\u003cBox\u003cdyn FnMut() + Send\u003e\u003e,\n\tstarted: bool,\n\tfinished: bool,\n\tsucceeded: bool,\n\tbehavior: Option\u003cBox\u003cdyn TaskBehavior + Send\u003e\u003e,\n\t/// Finish/success flag pair + wakeup condvar (race-free readers).\n\tdone: Arc\u003c(Mutex\u003cTaskDone\u003e, Condvar)\u003e,\n\t/// Values published for the C ABI subscribe wrapper.\n\tsubscriber: Option\u003cArc\u003cSubscriberState\u003e\u003e,\n}\n\nimpl Drop for Task {\n\tfn drop(\u0026mut self) {\n\t\t// Free the cancellation atom only when we created it ourselves;\n\t\t// borrowed atoms are released by their owner.\n\t\tif self.owns_atom \u0026\u0026 !self.cancel_atom.is_null() {\n\t\t\tlet mut atom = bridge::render::OakCancelAtom::from_chandle(self.cancel_atom);\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_cancelatom_free(\u0026mut atom);\n\t\t\t}\n\t\t}\n\t}\n}\n\nimpl Task {\n\t/// Create a new task with the given title and a borrowed oakrender\n\t/// cancel atom. When `cancel_atom` is empty a fresh atom is created and\n\t/// owned by the task (mirroring the C++ constructor).\n\tpub fn new(title: \u0026str, cancel_atom: CHandle) -\u003e Task {\n\t\tlet (cancel_atom, owns_atom) = if cancel_atom.is_null() {\n\t\t\tlet atom = unsafe { bridge::render::oakrender_cancelatom_init() };\n\t\t\t(atom.to_chandle(), true)\n\t\t} else {\n\t\t\t(cancel_atom, false)\n\t\t};\n\t\tTask {\n\t\t\ttitle: title.to_string(),\n\t\t\terror: None,\n\t\t\tstart_time: None,\n\t\t\tcancel_atom,\n\t\t\towns_atom,\n\t\t\tevent_listener: None,\n\t\t\tcancel_event: None,\n\t\t\tstarted: false,\n\t\t\tfinished: false,\n\t\t\tsucceeded: false,\n\t\t\tbehavior: None,\n\t\t\tdone: Arc::new((Mutex::new(TaskDone::default()), Condvar::new())),\n\t\t\tsubscriber: None,\n\t\t}\n\t}\n\n\t/// Attach the concrete behavior (defaults to a no-op).\n\tpub fn set_behavior(\u0026mut self, behavior: Box\u003cdyn TaskBehavior + Send\u003e) {\n\t\tself.behavior = Some(behavior);\n\t}\n\n\t/// Start the task: set `started`, emit [`TaskEvent::Started`], run the\n\t/// behavior, then mark finished and emit [`TaskEvent::Finished`].\n\t///\n\t/// The returned `Result` mirrors the C++ `start()` bool: `Ok(())` when\n\t/// the behavior succeeded, `Err(..)` otherwise.\n\tpub fn start(\u0026mut self) -\u003e Result\u003c()\u003e {\n\t\tlet start_ms = system_time_ms();\n\t\tself.start_time = Some(std::time::Instant::now());\n\t\tself.started = true;\n\t\tif let Some(s) = \u0026self.subscriber {\n\t\t\ts.start_ms.store(start_ms, Ordering::SeqCst);\n\t\t}\n\t\tself.emit_event(TaskEvent::Started);\n\n\t\t// Take the behavior out so it can receive `self` (avoids a\n\t\t// self-referential borrow); put it back afterwards.\n\t\tlet behavior = self.behavior.take();\n\t\tlet ret = if let Some(mut b) = behavior {\n\t\t\tlet r = b.run(self);\n\t\t\tself.behavior = Some(b);\n\t\t\tr\n\t\t} else {\n\t\t\tOk(())\n\t\t};\n\n\t\tlet succeeded = ret.is_ok();\n\t\t{\n\t\t\tlet mut done = self.done.0.lock().unwrap();\n\t\t\tdone.finished = true;\n\t\t\tdone.succeeded = succeeded;\n\t\t\tself.done.1.notify_all();\n\t\t}\n\t\tif let Some(s) = \u0026self.subscriber {\n\t\t\ts.finished_value.store(if succeeded { 1 } else { 0 }, Ordering::SeqCst);\n\t\t}\n\t\tself.emit_event(TaskEvent::Finished);\n\n\t\t// One-shot subscription: drop the listener after the final event.\n\t\tself.event_listener = None;\n\n\t\tret\n\t}\n\n\t/// Request cancellation through the borrowed oakrender cancel atom, then\n\t/// invoke the cancel event callback if one is registered.\n\tpub fn cancel(\u0026mut self) {\n\t\tif !self.cancel_atom.is_null() {\n\t\t\tlet atom = bridge::render::OakCancelAtom::from_chandle(self.cancel_atom);\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_cancelatom_cancel(atom);\n\t\t\t}\n\t\t}\n\t\tif let Some(cb) = self.cancel_event.as_mut() {\n\t\t\tcb();\n\t\t}\n\t}\n\n\t/// Whether cancellation was requested (queries the oakrender atom).\n\tpub fn is_cancelled(\u0026self) -\u003e bool {\n\t\tif self.cancel_atom.is_null() {\n\t\t\treturn false;\n\t\t}\n\t\tlet atom = bridge::render::OakCancelAtom::from_chandle(self.cancel_atom);\n\t\tlet mut cancelled = 0;\n\t\tunsafe {\n\t\t\tbridge::render::oakrender_cancelatom_is_cancelled(atom, \u0026mut cancelled);\n\t\t}\n\t\tcancelled != 0\n\t}\n\n\t/// The borrowed cancel atom handle (empty for tasks without one).\n\tpub fn get_cancel_atom(\u0026self) -\u003e CHandle {\n\t\tself.cancel_atom\n\t}\n\n\t/// Replace the cancel atom. A previously owned atom is freed; the new\n\t/// atom is borrowed (never freed by this task). Used to share one atom\n\t/// between a task and its behavior's inner base task.\n\tpub fn set_cancel_atom(\u0026mut self, atom: CHandle) {\n\t\tif self.owns_atom \u0026\u0026 !self.cancel_atom.is_null() {\n\t\t\tlet mut old = bridge::render::OakCancelAtom::from_chandle(self.cancel_atom);\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_cancelatom_free(\u0026mut old);\n\t\t\t}\n\t\t}\n\t\tself.cancel_atom = atom;\n\t\tself.owns_atom = false;\n\t}\n\n\t/// Register the event listener. Replaces any previous listener.\n\tpub fn set_event_listener(\u0026mut self, listener: EventListener) {\n\t\tself.event_listener = Some(listener);\n\t}\n\n\t/// Register a hook invoked when [`Task::cancel`] is called.\n\tpub fn set_cancel_event(\u0026mut self, cb: Box\u003cdyn FnMut() + Send\u003e) {\n\t\tself.cancel_event = Some(cb);\n\t}\n\n\t/// Publish the shared values used by the C ABI subscribe wrapper.\n\tpub fn set_subscriber(\u0026mut self, state: Arc\u003cSubscriberState\u003e) {\n\t\tself.subscriber = Some(state);\n\t}\n\n\t/// Emit a progress update, clamping to 0.0..=1.0 and delivering it to the\n\t/// listener as [`TaskEvent::Progress`].\n\tpub fn emit_progress(\u0026mut self, progress: f64) {\n\t\tself.emit_event(TaskEvent::Progress(progress.clamp(0.0, 1.0)));\n\t}\n\n\t/// Reset lifecycle state so the task can be run again.\n\tpub fn reset(\u0026mut self) {\n\t\tself.started = false;\n\t\tself.finished = false;\n\t\tself.succeeded = false;\n\t\tself.error = None;\n\t\tself.start_time = None;\n\t\t{\n\t\t\tlet mut done = self.done.0.lock().unwrap();\n\t\t\tdone.finished = false;\n\t\t\tdone.succeeded = false;\n\t\t}\n\t}\n\n\t/// Record a failure message and mark the task failed.\n\tpub fn set_error(\u0026mut self, message: \u0026str) {\n\t\tself.error = Some(message.to_string());\n\t}\n\n\t/// Change the task title.\n\tpub fn set_title(\u0026mut self, title: \u0026str) {\n\t\tself.title = title.to_string();\n\t}\n\n\t/// The task title.\n\tpub fn title(\u0026self) -\u003e \u0026str {\n\t\t\u0026self.title\n\t}\n\n\t/// The failure message, if the task failed.\n\tpub fn error(\u0026self) -\u003e Option\u003c\u0026str\u003e {\n\t\tself.error.as_deref()\n\t}\n\n\t/// Whether the task has finished (success or failure).\n\tpub fn is_finished(\u0026self) -\u003e bool {\n\t\tself.done.0.lock().unwrap().finished\n\t}\n\n\t/// Whether the task finished successfully.\n\tpub fn succeeded(\u0026self) -\u003e bool {\n\t\tself.done.0.lock().unwrap().succeeded\n\t}\n\n\t/// Block until the task finishes. Mirrors the C++ finished-wait condvar;\n\t/// the manager joins worker threads instead, but this is useful for\n\t/// direct (non-manager) runs. Returns immediately when the task has not\n\t/// been started yet (nothing to wait for) or is already finished.\n\tpub fn wait_finished(\u0026self) {\n\t\tif !self.started {\n\t\t\treturn;\n\t\t}\n\t\tlet mut done = self.done.0.lock().unwrap();\n\t\twhile !done.finished {\n\t\t\tdone = self.done.1.wait(done).unwrap();\n\t\t}\n\t}\n\n\t/// The elapsed time since [`Task::start`], for duration reporting.\n\tpub fn elapsed(\u0026self) -\u003e Option\u003cstd::time::Duration\u003e {\n\t\tself.start_time.map(|t| t.elapsed())\n\t}\n\n\tfn emit_event(\u0026mut self, ev: TaskEvent) {\n\t\tif let Some(listener) = self.event_listener.as_mut() {\n\t\t\tlistener(ev);\n\t\t}\n\t}\n}\n\n/// Current wall-clock time in milliseconds since the Unix epoch, matching\n/// the C++ `start_time_` convention (std::chrono::system_clock ms).\npub fn system_time_ms() -\u003e i64 {\n\tstd::time::SystemTime::now()\n\t\t.duration_since(std::time::UNIX_EPOCH)\n\t\t.map(|d| d.as_millis() as 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var previousData = {"files":[{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","codec.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oakcodec C ABI imports. The task module reaches the codec side through\n//! `include/codec/task.h` (the task submitter), `include/codec/decoder.h`\n//! (conform/proxy work) and `include/codec/encoder.h` (export). Signatures\n//! mirror the headers verbatim.\n\nuse std::ffi::{c_char, c_int, c_uint, c_void};\n\nuse crate::bridge::render::OakCancelAtom;\nuse crate::handle::CHandle;\n\n/// `OakCodecTaskKind` enum values (`include/codec/task.h`).\npub const OAKCODEC_TASK_CONFORM: c_int = 0;\n/// `OakCodecTaskKind::OAKCODEC_TASK_PROXY`.\npub const OAKCODEC_TASK_PROXY: c_int = 1;\n/// `OAKCODEC_E_CANCELLED` (`include/codec/error.h`).\npub const OAKCODEC_E_CANCELLED: c_int = -50006;\n/// `OAKCODEC_E_INVALID` (`include/codec/error.h`).\npub const OAKCODEC_E_INVALID: c_int = -50001;\n/// `OAKCODEC_E_FAILED` (`include/codec/error.h`).\npub const OAKCODEC_E_FAILED: c_int = -50003;\n\n/// Mirror of `OakCodecTaskRequest` (`include/codec/task.h`).\n#[repr(C)]\npub struct OakCodecTaskRequest {\n\t/// `OakCodecTaskKind` as int.\n\tpub kind: c_int,\n\t/// Source media filename.\n\tpub input_filename: *const c_char,\n\t/// Final destination path.\n\tpub output_filename: *const c_char,\n\t/// Stream inside the source media.\n\tpub stream_index: c_int,\n\t/// conform: target sample rate.\n\tpub sample_rate: c_int,\n\t/// conform: target channel layout mask.\n\tpub channel_layout: u64,\n\t/// conform: target sample format (enum as int).\n\tpub sample_format: c_int,\n\t/// proxy: target width, 0 = unspecified/divider.\n\tpub proxy_width: c_int,\n\t/// proxy: target height, 0 = unspecified/divider.\n\tpub proxy_height: c_int,\n}\n\n/// `oakcodec_task_submit_fn` callback typedef.\npub type OakCodecTaskSubmitFn =\n\tunsafe extern \"C\" fn(req: *const OakCodecTaskRequest, userdata: *mut c_void) -\u003e c_int;\n\n/// Mirror of `OakCodecFrame`/`OakFrame` handle type (`include/codec/frame.h`).\npub type OakFrame = CHandle;\n\n/// Mirror of `OakEncoder` handle type (`include/codec/encoder.h`).\npub type OakEncoder = CHandle;\n\n/// Mirror of `OakDecoder` handle type (`include/codec/decoder.h`).\npub type OakDecoder = CHandle;\n\n/// Mirror of `OakCodecProxyParams` (`include/codec/proxy.h`).\n#[repr(C)]\npub struct OakCodecProxyParams {\n\t/// Target width.\n\tpub width: c_int,\n\t/// Target height.\n\tpub height: c_int,\n\t/// Resolution divider.\n\tpub divider: c_int,\n\t/// Proxy format version.\n\tpub version: c_int,\n\t/// CRF for the proxy encode.\n\tpub crf: c_int,\n\t/// Whether audio is included.\n\tpub include_audio: c_int,\n\t/// Output container extension.\n\tpub extension: [c_char; 32],\n\t/// ffmpeg preset name.\n\tpub preset: [c_char; 32],\n}\n\n/// Mirror of `oakcodec_encoding_params` (`include/codec/encoder.h`) — the\n/// export task fills this to open the encoder. Layout mirrors the header\n/// verbatim (a zeroed struct = all tracks disabled).\n#[repr(C)]\npub struct OakCodecEncodingParams {\n\t/// Output filename.\n\tpub filename: [c_char; 1024],\n\t/// Export format id (`olive::ExportFormat::Format`).\n\tpub format: c_int,\n\t/// Whether video is exported.\n\tpub video_enabled: c_int,\n\t/// Video codec id.\n\tpub video_codec: c_int,\n\t/// Output width.\n\tpub video_width: c_int,\n\t/// Output height.\n\tpub video_height: c_int,\n\t/// Frame duration rational numerator.\n\tpub video_time_base_num: c_int,\n\t/// Frame duration rational denominator.\n\tpub video_time_base_den: c_int,\n\t/// Delivery pixel format (`OakPixelFormat` as int).\n\tpub video_pixel_format: c_int,\n\t/// Interlacing (`OAKCODEC_INTERLACE_*`).\n\tpub video_interlacing: c_int,\n\t/// Pixel aspect ratio numerator.\n\tpub video_pixel_aspect_num: c_int,\n\t/// Pixel aspect ratio denominator.\n\tpub video_pixel_aspect_den: c_int,\n\t/// Video bit rate (bit/s, 0 = default).\n\tpub video_bit_rate: i64,\n\t/// Minimum video bit rate.\n\tpub video_min_bit_rate: i64,\n\t/// Maximum video bit rate.\n\tpub video_max_bit_rate: i64,\n\t/// Video buffer size (bytes).\n\tpub video_buffer_size: i64,\n\t/// Video threads (0 = auto).\n\tpub video_threads: c_int,\n\t/// Encoded pixel format name (\"yuv420p\").\n\tpub video_pix_fmt: [c_char; 64],\n\t/// Whether the output is an image sequence.\n\tpub video_is_image_sequence: c_int,\n\t/// Scaling method (`OAKCODEC_ENCODING_SCALING_*`).\n\tpub video_scaling_method: c_int,\n\t/// Whether audio is exported.\n\tpub audio_enabled: c_int,\n\t/// Audio codec id.\n\tpub audio_codec: c_int,\n\t/// Audio sample rate.\n\tpub audio_sample_rate: c_int,\n\t/// Audio channel layout mask.\n\tpub audio_channel_layout: u64,\n\t/// Audio sample format (`olive::core::SampleFormat::Format` as int).\n\tpub audio_sample_format: c_int,\n\t/// Audio bit rate.\n\tpub audio_bit_rate: i64,\n\t/// Whether subtitles are exported.\n\tpub subtitles_enabled: c_int,\n\t/// Subtitle codec id.\n\tpub subtitles_codec: c_int,\n\t/// Whether subtitles go to a sidecar file.\n\tpub subtitles_are_sidecar: c_int,\n\t/// Sidecar subtitle format.\n\tpub subtitles_sidecar_format: c_int,\n\t/// Output OCIO colorspace name (empty = reference space).\n\tpub color_transform_output: [c_char; 256],\n\t/// Export length in seconds (rational).\n\tpub export_length_num: c_int,\n\t/// Export length denominator.\n\tpub export_length_den: c_int,\n\t/// Whether a custom export range is in effect.\n\tpub has_custom_range: c_int,\n\t/// Custom range in (seconds, rational).\n\tpub custom_range_in_num: i64,\n\t/// Custom range in denominator.\n\tpub custom_range_in_den: i64,\n\t/// Custom range out numerator.\n\tpub custom_range_out_num: i64,\n\t/// Custom range out denominator.\n\tpub custom_range_out_den: i64,\n}\n\nextern \"C\" {\n\t/// `oakcodec_set_task_submit_cb` — install the task submitter (`None`\n\t/// unregisters, matching the header's `cb == NULL`).\n\tpub fn oakcodec_set_task_submit_cb(\n\t\tcb: Option\u003cOakCodecTaskSubmitFn\u003e,\n\t\tuserdata: *mut c_void,\n\t);\n\t/// `oakcodec_task_submit_is_registered`.\n\tpub fn oakcodec_task_submit_is_registered() -\u003e c_int;\n\n\t/// `oakcodec_decoder_init`.\n\tpub fn oakcodec_decoder_init() -\u003e OakDecoder;\n\t/// `oakcodec_decoder_free`.\n\tpub fn oakcodec_decoder_free(decoder: *mut OakDecoder);\n\t/// `oakcodec_decoder_open`.\n\tpub fn oakcodec_decoder_open(\n\t\tdecoder: OakDecoder,\n\t\tfilename: *const c_char,\n\t\tstream_index: c_int,\n\t) -\u003e c_int;\n\t/// `oakcodec_decoder_close`.\n\tpub fn oakcodec_decoder_close(decoder: OakDecoder) -\u003e c_int;\n\t/// `oakcodec_decoder_is_open`.\n\tpub fn oakcodec_decoder_is_open(decoder: OakDecoder) -\u003e c_int;\n\t/// `oakcodec_decoder_decode_audio`.\n\tpub fn oakcodec_decoder_decode_audio(\n\t\tdecoder: OakDecoder,\n\t\tin_num: c_int,\n\t\tin_den: c_int,\n\t\tout_num: c_int,\n\t\tout_den: c_int,\n\t\tsample_rate: c_int,\n\t\tchannel_layout: c_uint,\n\t\tbuf: *mut f32,\n\t\tbuf_frames: c_int,\n\t) -\u003e c_int;\n\t/// `oakcodec_decoder_conform_audio` — the whole-stream conform pass.\n\tpub fn oakcodec_decoder_conform_audio(\n\t\tdecoder: OakDecoder,\n\t\toutput_filenames: *const *const c_char,\n\t\tfilename_count: c_int,\n\t\tsample_rate: c_int,\n\t\tchannel_layout: u64,\n\t\tsample_format: c_int,\n\t\tcancelled: OakCancelAtom,\n\t) -\u003e c_int;\n\t/// `oakcodec_decoder_last_error`.\n\tpub fn oakcodec_decoder_last_error(decoder: OakDecoder, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\n\t// --- decoder.h: image-sequence heuristics ---\n\t/// `oakcodec_decoder_get_image_sequence_digit_count`.\n\tpub fn oakcodec_decoder_get_image_sequence_digit_count(filename: *const c_char) -\u003e c_int;\n\t/// `oakcodec_decoder_get_image_sequence_index`.\n\tpub fn oakcodec_decoder_get_image_sequence_index(filename: *const c_char) -\u003e i64;\n\t/// `oakcodec_decoder_transform_image_sequence_file_name` (two-stage).\n\tpub fn oakcodec_decoder_transform_image_sequence_file_name(\n\t\tfilename: *const c_char,\n\t\tnumber: i64,\n\t\tbuf: *mut c_char,\n\t\tbuf_size: c_int,\n\t) -\u003e c_int;\n\n\t// --- encoder.h extras ---\n\t/// `oakcodec_encoder_get_desired_pixel_format`.\n\tpub fn oakcodec_encoder_get_desired_pixel_format(encoder: OakEncoder) -\u003e c_int;\n\t/// `oakcodec_encoding_generate_matrix` (row-major 4x4).\n\tpub fn oakcodec_encoding_generate_matrix(\n\t\tmethod: c_int,\n\t\tsrc_width: c_int,\n\t\tsrc_height: c_int,\n\t\tdst_width: c_int,\n\t\tdst_height: c_int,\n\t\tout_matrix: *mut f64,\n\t) -\u003e c_int;\n\n\t// --- proxy.h ---\n\t/// `oakcodec_proxy_find_ffmpeg` (buf/size getter).\n\tpub fn oakcodec_proxy_find_ffmpeg(configured_path: *const c_char, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oakcodec_proxy_params_default`.\n\tpub fn oakcodec_proxy_params_default(out: *mut OakCodecProxyParams) -\u003e c_int;\n\n\t/// `oakcodec_encoder_init`.\n\tpub fn oakcodec_encoder_init(params: *const OakCodecEncodingParams) -\u003e OakEncoder;\n\t/// `oakcodec_encoder_free`.\n\tpub fn oakcodec_encoder_free(encoder: *mut OakEncoder);\n\t/// `oakcodec_encoder_open`.\n\tpub fn oakcodec_encoder_open(encoder: OakEncoder) -\u003e c_int;\n\t/// `oakcodec_encoder_write_video`.\n\tpub fn oakcodec_encoder_write_video(encoder: OakEncoder, frame: OakFrame) -\u003e c_int;\n\t/// `oakcodec_encoder_write_audio`.\n\tpub fn oakcodec_encoder_write_audio(\n\t\tencoder: OakEncoder,\n\t\tsamples: *const f32,\n\t\tframe_count: c_int,\n\t) -\u003e c_int;\n\t/// `oakcodec_encoder_write_subtitle`.\n\tpub fn oakcodec_encoder_write_subtitle(\n\t\tencoder: OakEncoder,\n\t\ttext: *const c_char,\n\t\tin_seconds: f64,\n\t\tout_seconds: f64,\n\t) -\u003e c_int;\n\t/// `oakcodec_encoder_flush`.\n\tpub fn oakcodec_encoder_flush(encoder: OakEncoder) -\u003e c_int;\n\t/// `oakcodec_encoder_last_error`.\n\tpub fn oakcodec_encoder_last_error(encoder: OakEncoder, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","common.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oakcommon / oakcore C ABI imports. The task module reaches the shared\n//! value types through `include/common/videoparams.h`,\n//! `include/common/colortransform.h` and the oakcore audio-params C ABI.\n//! Signatures mirror the headers verbatim.\n\nuse std::ffi::{c_char, c_int};\n\nuse crate::handle::CHandle;\n\n/// Mirror of `OakVideoParams` (`include/common/videoparams.h`).\n///\n/// A by-value handle (shared_ptr semantics); its `{ctx, addref, release,\n/// abi_version}` layout is identical to [`CHandle`], so it is a type alias —\n/// every oakcommon handle is created and destroyed inside the oakcommon DLL\n/// and only crosses the FFI boundary as this opaque by-value struct.\npub type OakVideoParams = CHandle;\n\n/// Mirror of `OakColorTransform` (`include/common/colortransform.h`); see\n/// [`OakVideoParams`] for the alias rationale.\npub type OakColorTransform = CHandle;\n\n/// Mirror of `OakAudioParams` — oakcore audio parameters. Declared as a\n/// `CHandle`-shaped opaque; the oakcore C ABI header that owns its layout is\n/// the authoritative source once the oakcore C ABI ships.\npub type OakAudioParams = CHandle;\n\n/// `OAKCOMMON_VIDEO_TYPE_STILL` (`include/common/videoparams.h`).\npub const OAKCOMMON_VIDEO_TYPE_STILL: c_int = 1;\n/// `OAKCOMMON_VIDEO_TYPE_IMAGE_SEQUENCE` (`include/common/videoparams.h`).\npub const OAKCOMMON_VIDEO_TYPE_IMAGE_SEQUENCE: c_int = 2;\n\nextern \"C\" {\n\t// --- videoparams.h ---\n\t/// `oakcommon_videoparams_init`.\n\tpub fn oakcommon_videoparams_init() -\u003e OakVideoParams;\n\t/// `oakcommon_videoparams_init_basic`.\n\tpub fn oakcommon_videoparams_init_basic(\n\t\twidth: c_int,\n\t\theight: c_int,\n\t\tpixel_format: c_int,\n\t\tnb_channels: c_int,\n\t\tpixel_aspect_num: c_int,\n\t\tpixel_aspect_den: c_int,\n\t\tinterlacing: c_int,\n\t\tdivider: c_int,\n\t) -\u003e OakVideoParams;\n\t/// `oakcommon_videoparams_free`.\n\tpub fn oakcommon_videoparams_free(params: *mut OakVideoParams);\n\t/// `oakcommon_videoparams_get_width`.\n\tpub fn oakcommon_videoparams_get_width(params: OakVideoParams, width: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_height`.\n\tpub fn oakcommon_videoparams_get_height(params: OakVideoParams, height: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_format`.\n\tpub fn oakcommon_videoparams_get_format(params: OakVideoParams, format: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_format`.\n\tpub fn oakcommon_videoparams_set_format(params: OakVideoParams, format: c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_time_base`.\n\tpub fn oakcommon_videoparams_get_time_base(\n\t\tparams: OakVideoParams,\n\t\tnumerator: *mut c_int,\n\t\tdenominator: *mut c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_time_base`.\n\tpub fn oakcommon_videoparams_set_time_base(\n\t\tparams: OakVideoParams,\n\t\tnumerator: c_int,\n\t\tdenominator: c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_frame_rate_as_time_base` — frame rate flipped\n\t/// to a frame duration rational.\n\tpub fn oakcommon_videoparams_frame_rate_as_time_base(\n\t\tparams: OakVideoParams,\n\t\tout_num: *mut c_int,\n\t\tout_den: *mut c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_frame_rate`.\n\tpub fn oakcommon_videoparams_set_frame_rate(\n\t\tparams: OakVideoParams,\n\t\tnumerator: c_int,\n\t\tdenominator: c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_video_type`.\n\tpub fn oakcommon_videoparams_get_video_type(params: OakVideoParams, out_type: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_video_type`.\n\tpub fn oakcommon_videoparams_set_video_type(params: OakVideoParams, video_type: c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_start_time`.\n\tpub fn oakcommon_videoparams_set_start_time(params: OakVideoParams, start: i64) -\u003e c_int;\n\t/// `oakcommon_videoparams_set_duration`.\n\tpub fn oakcommon_videoparams_set_duration(params: OakVideoParams, duration: i64) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_is_valid`.\n\tpub fn oakcommon_videoparams_get_is_valid(params: OakVideoParams, out_valid: *mut c_int) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_frame_rate`.\n\tpub fn oakcommon_videoparams_get_frame_rate(\n\t\tparams: OakVideoParams,\n\t\tnumerator: *mut c_int,\n\t\tdenominator: *mut c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_videoparams_get_duration`.\n\tpub fn oakcommon_videoparams_get_duration(params: OakVideoParams, duration: *mut i64) -\u003e c_int;\n\n\t// --- colortransform.h ---\n\t/// `oakcommon_colortransform_init_display`.\n\tpub fn oakcommon_colortransform_init_display(\n\t\tdisplay: *const c_char,\n\t\tview: *const c_char,\n\t\tlook: *const c_char,\n\t) -\u003e OakColorTransform;\n\t/// `oakcommon_colortransform_init_output`.\n\tpub fn oakcommon_colortransform_init_output(\n\t\toutput: *const c_char,\n\t\tdisplay: *const c_char,\n\t\tview: *const c_char,\n\t\tlook: *const c_char,\n\t) -\u003e OakColorTransform;\n\t/// `oakcommon_colortransform_free`.\n\tpub fn oakcommon_colortransform_free(transform: *mut OakColorTransform);\n\n\t// --- config.h ---\n\t/// `oakcommon_config_get` (buf/size getter; returns needed size).\n\tpub fn oakcommon_config_get(\n\t\tgroup: *const c_char,\n\t\tkey: *const c_char,\n\t\tbuf: *mut c_char,\n\t\tbuf_size: c_int,\n\t) -\u003e c_int;\n\t/// `oakcommon_config_get_int`.\n\tpub fn oakcommon_config_get_int(group: *const c_char, key: *const c_char, default: c_int) -\u003e c_int;\n\t/// `oakcommon_config_get_bool`.\n\tpub fn oakcommon_config_get_bool(group: *const c_char, key: *const c_char, default: c_int) -\u003e c_int;\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","mod.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! C ABI imports from other oak modules (signatures mirror the public\n//! headers verbatim; resolved at link time).\n\npub mod codec;\npub mod common;\npub mod node;\npub mod render;\npub mod timeline;\npub mod undo;\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","node.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oaknode C ABI imports. The task module drives node-graph work through\n//! `include/node/project.h` (project shell), `include/node/folder.h`,\n//! `include/node/footage.h`, `include/node/sequence.h`,\n//! `include/node/colormanager.h` and `include/node/serializer.h`. Signatures\n//! mirror the headers verbatim; node handles are `CHandle` values whose\n//! underlying objects live inside the node library.\n\nuse std::ffi::{c_char, c_int, c_void};\n\nuse crate::bridge::common::OakVideoParams;\nuse crate::bridge::render::OakCancelAtom;\nuse crate::handle::CHandle;\n\n/// `OakNodeProject` (`include/node/project.h`).\npub type OakNodeProject = CHandle;\n/// `OakNodeNode` (`include/node/node.h`).\npub type OakNodeNode = CHandle;\n/// `OakNodeFolder` (`include/node/folder.h`).\npub type OakNodeFolder = CHandle;\n/// `OakNodeFootage` (`include/node/footage.h`).\npub type OakNodeFootage = CHandle;\n/// `OakNodeSequence` (`include/node/sequence.h`).\npub type OakNodeSequence = CHandle;\n/// `OakNodeTrack` (`include/node/track.h`).\npub type OakNodeTrack = CHandle;\n/// `OakNodeTrackList` (`include/node/track.h`).\npub type OakNodeTrackList = CHandle;\n/// `OakNodeBlock` (`include/node/block.h`).\npub type OakNodeBlock = CHandle;\n/// `OakNodeColorManager` (`include/node/colormanager.h`).\npub type OakNodeColorManager = CHandle;\n/// `OakNodeSerializerSaveData` (`include/node/serializer.h`).\npub type OakNodeSerializerSaveData = CHandle;\n/// `OakNodeSerializerLoadData` (`include/node/serializer.h`).\npub type OakNodeSerializerLoadData = CHandle;\n\n/// `OAKNODE_SEQUENCE_TEXTURE_INPUT` (`include/node/sequence.h`).\npub const OAKNODE_SEQUENCE_TEXTURE_INPUT: \u0026str = \"tex_in\";\n/// `OAKNODE_SEQUENCE_SAMPLES_INPUT` (`include/node/sequence.h`).\npub const OAKNODE_SEQUENCE_SAMPLES_INPUT: \u0026str = \"samples_in\";\n/// `OAKNODE_TRACK_TYPE_VIDEO` (`include/node/track.h`).\npub const OAKNODE_TRACK_TYPE_VIDEO: c_int = 0;\n/// `OAKNODE_TRACK_TYPE_AUDIO` (`include/node/track.h`).\npub const OAKNODE_TRACK_TYPE_AUDIO: c_int = 1;\n/// `OAKNODE_TRACK_TYPE_NONE` (`include/node/track.h`).\npub const OAKNODE_TRACK_TYPE_NONE: c_int = -1;\n/// `OAKNODE_BLOCK_OTHER` (`include/node/block.h`).\npub const OAKNODE_BLOCK_OTHER: c_int = 0;\n/// `OAKNODE_BLOCK_CLIP` (`include/node/block.h`).\npub const OAKNODE_BLOCK_CLIP: c_int = 1;\n/// `OAKNODE_BLOCK_GAP` (`include/node/block.h`).\npub const OAKNODE_BLOCK_GAP: c_int = 2;\n/// `OAKNODE_BLOCK_TRANSITION` (`include/node/block.h`).\npub const OAKNODE_BLOCK_TRANSITION: c_int = 3;\n/// `OAKNODE_TRANSITION_CROSS_DISSOLVE` (`include/node/block.h`).\npub const OAKNODE_TRANSITION_CROSS_DISSOLVE: c_int = 0;\n/// `OAKNODE_TRANSITION_OUT_BLOCK_INPUT` (`include/node/block.h`).\npub const OAKNODE_TRANSITION_OUT_BLOCK_INPUT: \u0026str = \"out_block_in\";\n/// `OAKNODE_TRANSITION_IN_BLOCK_INPUT` (`include/node/block.h`).\npub const OAKNODE_TRANSITION_IN_BLOCK_INPUT: \u0026str = \"in_block_in\";\n\n/// Node type ids used by the OTIO tasks\n/// (`src/task/src/project/loadotio/loadotio.cpp`).\n/// `k_sequence_id` — the sequence node type.\npub const OAKNODE_TYPE_SEQUENCE: \u0026str = \"org.olivevideoeditor.Olive.sequence\";\n/// `k_transform_id` — the transform node type.\npub const OAKNODE_TYPE_TRANSFORM: \u0026str = \"org.olivevideoeditor.Olive.transform\";\n/// `k_volume_id` — the volume node type.\npub const OAKNODE_TYPE_VOLUME: \u0026str = \"org.olivevideoeditor.Olive.volume\";\n\n/// C string helper: build a NUL-terminated copy of a Rust string for the\n/// C ABI. The buffer is leaked for the duration of the process; callers\n/// pass short-lived literals.\npub fn cstr(s: \u0026str) -\u003e *const c_char {\n\tlet mut bytes = s.as_bytes().to_vec();\n\tbytes.push(0);\n\tbytes.leak().as_ptr() as *const c_char\n}\n\nextern \"C\" {\n\t// --- node.h ---\n\t/// `oaknode_node_get_label` (two-stage string getter).\n\tpub fn oaknode_node_get_label(node: OakNodeNode, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_node_set_label`.\n\tpub fn oaknode_node_set_label(node: OakNodeNode, label: *const c_char) -\u003e c_int;\n\t/// `oaknode_node_get_id` (two-stage string getter).\n\tpub fn oaknode_node_get_id(node: OakNodeNode, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_node_get_project` (borrowed project handle out).\n\tpub fn oaknode_node_get_project(node: OakNodeNode, out: *mut OakNodeProject) -\u003e c_int;\n\t/// `oaknode_node_input_get_connected_node` (borrowed handle out).\n\tpub fn oaknode_node_input_get_connected_node(\n\t\tnode: OakNodeNode,\n\t\tinput_id: *const c_char,\n\t\tout_node: *mut OakNodeNode,\n\t) -\u003e c_int;\n\t/// `oaknode_node_set_context_position` (live, non-undoable).\n\tpub fn oaknode_node_set_context_position(\n\t\tnode: OakNodeNode,\n\t\tcontext: OakNodeNode,\n\t\tx: f64,\n\t\ty: f64,\n\t\texpanded: c_int,\n\t) -\u003e c_int;\n\t/// `oaknode_node_find_input_footage` (borrowed handle out).\n\tpub fn oaknode_node_find_input_footage(node: OakNodeNode, out: *mut OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_node_get_input_string` (two-stage string getter).\n\tpub fn oaknode_node_get_input_string(\n\t\tnode: OakNodeNode,\n\t\tinput_id: *const c_char,\n\t\tbuf: *mut c_char,\n\t\tbuf_size: c_int,\n\t) -\u003e c_int;\n\t/// `oaknode_node_create_copy` — orphaned deep copy of a node.\n\tpub fn oaknode_node_create_copy(node: OakNodeNode) -\u003e OakNodeNode;\n\t/// `oaknode_node_copy_inputs`.\n\tpub fn oaknode_node_copy_inputs(dst: OakNodeNode, src: OakNodeNode, include_connections: c_int) -\u003e c_int;\n\t/// `oaknode_node_connect`.\n\tpub fn oaknode_node_connect(output_node: OakNodeNode, input_node: OakNodeNode, input_id: *const c_char) -\u003e c_int;\n\t/// `oaknode_node_set_value_hint_track`.\n\tpub fn oaknode_node_set_value_hint_track(\n\t\tnode: OakNodeNode,\n\t\tinput_id: *const c_char,\n\t\ttrack_type: c_int,\n\t\ttrack_index: c_int,\n\t) -\u003e c_int;\n\t/// `oaknode_node_get_video_frame_cache` (borrowed cache out).\n\tpub fn oaknode_node_get_video_frame_cache(\n\t\tnode: OakNodeNode,\n\t\tout: *mut crate::bridge::render::OakRenderCache,\n\t) -\u003e c_int;\n\t/// `oaknode_node_free`.\n\tpub fn oaknode_node_free(node: *mut OakNodeNode);\n\t/// `oaknode_command_create_remove_node` — undoable node removal.\n\tpub fn oaknode_command_create_remove_node(node: OakNodeNode) -\u003e crate::bridge::undo::OakUndoCommand;\n\n\t// --- factory.h ---\n\t/// `oaknode_factory_create_from_id`.\n\tpub fn oaknode_factory_create_from_id(type_id: *const c_char) -\u003e OakNodeNode;\n\n\t// --- node.h (viewer) ---\n\t/// `oaknode_viewer_set_video_params`.\n\tpub fn oaknode_viewer_set_video_params(viewer: OakNodeNode, params: *const OakVideoParams) -\u003e c_int;\n\t/// `oaknode_viewer_set_audio_params`.\n\tpub fn oaknode_viewer_set_audio_params(viewer: OakNodeNode, params: *const std::ffi::c_void) -\u003e c_int;\n\n\t// --- block.h ---\n\t/// `oaknode_block_clip_create`.\n\tpub fn oaknode_block_clip_create() -\u003e OakNodeBlock;\n\t/// `oaknode_block_gap_create`.\n\tpub fn oaknode_block_gap_create() -\u003e OakNodeBlock;\n\t/// `oaknode_block_transition_create` (kind: `OakNodeTransitionKind`).\n\tpub fn oaknode_block_transition_create(kind: c_int) -\u003e OakNodeBlock;\n\t/// `oaknode_block_as_node` (borrowed cast).\n\tpub fn oaknode_block_as_node(block: OakNodeBlock) -\u003e OakNodeNode;\n\t/// `oaknode_block_get_kind`.\n\tpub fn oaknode_block_get_kind(block: OakNodeBlock, out_kind: *mut c_int) -\u003e c_int;\n\t/// `oaknode_block_get_in`.\n\tpub fn oaknode_block_get_in(block: OakNodeBlock, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_block_get_length`.\n\tpub fn oaknode_block_get_length(block: OakNodeBlock, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_block_set_length_and_media_out`.\n\tpub fn oaknode_block_set_length_and_media_out(block: OakNodeBlock, numerator: c_int, denominator: c_int) -\u003e c_int;\n\t/// `oaknode_clip_set_media_in`.\n\tpub fn oaknode_clip_set_media_in(clip: OakNodeBlock, numerator: c_int, denominator: c_int) -\u003e c_int;\n\t/// `oaknode_transition_get_in_offset`.\n\tpub fn oaknode_transition_get_in_offset(transition: OakNodeBlock, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_transition_get_out_offset`.\n\tpub fn oaknode_transition_get_out_offset(transition: OakNodeBlock, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_transition_set_offsets_and_length`.\n\tpub fn oaknode_transition_set_offsets_and_length(\n\t\ttransition: OakNodeBlock,\n\t\tin_num: c_int,\n\t\tin_den: c_int,\n\t\tout_num: c_int,\n\t\tout_den: c_int,\n\t) -\u003e c_int;\n\n\t// --- project.h ---\n\t/// `oaknode_project_init`.\n\tpub fn oaknode_project_init() -\u003e OakNodeProject;\n\t/// `oaknode_project_free`.\n\tpub fn oaknode_project_free(project: *mut OakNodeProject);\n\t/// `oaknode_project_initialize`.\n\tpub fn oaknode_project_initialize(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_clear`.\n\tpub fn oaknode_project_clear(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_root`.\n\tpub fn oaknode_project_root(project: OakNodeProject) -\u003e OakNodeFolder;\n\t/// `oaknode_project_name`.\n\tpub fn oaknode_project_name(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_filename`.\n\tpub fn oaknode_project_filename(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_pretty_filename`.\n\tpub fn oaknode_project_pretty_filename(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_set_filename`.\n\tpub fn oaknode_project_set_filename(project: OakNodeProject, filename: *const c_char) -\u003e c_int;\n\t/// `oaknode_project_is_modified`.\n\tpub fn oaknode_project_is_modified(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_set_modified`.\n\tpub fn oaknode_project_set_modified(project: OakNodeProject, modified: c_int) -\u003e c_int;\n\t/// `oaknode_project_is_new`.\n\tpub fn oaknode_project_is_new(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_cache_path`.\n\tpub fn oaknode_project_cache_path(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_copy_settings`.\n\tpub fn oaknode_project_copy_settings(dst: OakNodeProject, src: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_get_cache_location_setting`.\n\tpub fn oaknode_project_get_cache_location_setting(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_set_cache_location_setting`.\n\tpub fn oaknode_project_set_cache_location_setting(project: OakNodeProject, setting: c_int) -\u003e c_int;\n\t/// `oaknode_project_get_custom_cache_path`.\n\tpub fn oaknode_project_get_custom_cache_path(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_set_custom_cache_path`.\n\tpub fn oaknode_project_set_custom_cache_path(project: OakNodeProject, path: *const c_char) -\u003e c_int;\n\t/// `oaknode_project_get_uuid`.\n\tpub fn oaknode_project_get_uuid(project: OakNodeProject, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_project_add_node`.\n\tpub fn oaknode_project_add_node(project: OakNodeProject, node: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_project_remove_node`.\n\tpub fn oaknode_project_remove_node(project: OakNodeProject, node: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_project_node_count`.\n\tpub fn oaknode_project_node_count(project: OakNodeProject) -\u003e c_int;\n\t/// `oaknode_project_node_at`.\n\tpub fn oaknode_project_node_at(project: OakNodeProject, index: c_int) -\u003e OakNodeNode;\n\n\t// --- folder.h ---\n\t/// `oaknode_folder_create`.\n\tpub fn oaknode_folder_create(project: OakNodeProject) -\u003e OakNodeFolder;\n\t/// `oaknode_folder_child_count`.\n\tpub fn oaknode_folder_child_count(folder: OakNodeFolder) -\u003e c_int;\n\t/// `oaknode_folder_child_at`.\n\tpub fn oaknode_folder_child_at(folder: OakNodeFolder, index: c_int) -\u003e OakNodeNode;\n\t/// `oaknode_folder_add_child`.\n\tpub fn oaknode_folder_add_child(folder: OakNodeFolder, child: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_folder_as_node`.\n\tpub fn oaknode_folder_as_node(folder: OakNodeFolder) -\u003e OakNodeNode;\n\t/// `oaknode_command_create_folder_add_child`.\n\tpub fn oaknode_command_create_folder_add_child(folder: OakNodeFolder, child: OakNodeNode) -\u003e crate::bridge::undo::OakUndoCommand;\n\t/// `oaknode_folder_remove_child`.\n\tpub fn oaknode_folder_remove_child(folder: OakNodeFolder, child: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_folder_move_children`.\n\tpub fn oaknode_folder_move_children(nodes: *const OakNodeNode, count: c_int, dest_folder: OakNodeFolder) -\u003e c_int;\n\t/// `oaknode_folder_has_child_recursive`.\n\tpub fn oaknode_folder_has_child_recursive(folder: OakNodeFolder, child: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_folder_index_of_child`.\n\tpub fn oaknode_folder_index_of_child(folder: OakNodeFolder, child: OakNodeNode) -\u003e c_int;\n\t/// `oaknode_folder_parent_of`.\n\tpub fn oaknode_folder_parent_of(node: OakNodeNode) -\u003e OakNodeFolder;\n\n\t// --- footage.h ---\n\t/// `oaknode_footage_create`.\n\tpub fn oaknode_footage_create(project: OakNodeProject, filename: *const c_char) -\u003e OakNodeFootage;\n\t/// `oaknode_footage_as_node`.\n\tpub fn oaknode_footage_as_node(footage: OakNodeFootage) -\u003e OakNodeNode;\n\t/// `oaknode_footage_filename`.\n\tpub fn oaknode_footage_filename(footage: OakNodeFootage, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_footage_set_filename`.\n\tpub fn oaknode_footage_set_filename(footage: OakNodeFootage, filename: *const c_char) -\u003e c_int;\n\t/// `oaknode_footage_is_valid`.\n\tpub fn oaknode_footage_is_valid(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_timestamp`.\n\tpub fn oaknode_footage_timestamp(footage: OakNodeFootage, out_timestamp: *mut i64) -\u003e c_int;\n\t/// `oaknode_footage_set_timestamp`.\n\tpub fn oaknode_footage_set_timestamp(footage: OakNodeFootage, timestamp: i64) -\u003e c_int;\n\t/// `oaknode_footage_decoder`.\n\tpub fn oaknode_footage_decoder(footage: OakNodeFootage, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_footage_total_stream_count`.\n\tpub fn oaknode_footage_total_stream_count(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_video_stream_count`.\n\tpub fn oaknode_footage_video_stream_count(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_audio_stream_count`.\n\tpub fn oaknode_footage_audio_stream_count(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_subtitle_stream_count`.\n\tpub fn oaknode_footage_subtitle_stream_count(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_duration`.\n\tpub fn oaknode_footage_duration(footage: OakNodeFootage, out_numerator: *mut c_int, out_denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_footage_proxy_enabled`.\n\tpub fn oaknode_footage_proxy_enabled(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_set_proxy_enabled`.\n\tpub fn oaknode_footage_set_proxy_enabled(footage: OakNodeFootage, enabled: c_int) -\u003e c_int;\n\t/// `oaknode_footage_proxy_path`.\n\tpub fn oaknode_footage_proxy_path(footage: OakNodeFootage, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_footage_proxy_state`.\n\tpub fn oaknode_footage_proxy_state(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_set_proxy`.\n\tpub fn oaknode_footage_set_proxy(footage: OakNodeFootage, path: *const c_char, state: c_int, video_stream_index: c_int, preset_version: c_int, enabled: c_int) -\u003e c_int;\n\t/// `oaknode_footage_clear_proxy`.\n\tpub fn oaknode_footage_clear_proxy(footage: OakNodeFootage) -\u003e c_int;\n\t/// `oaknode_footage_get_video_params`.\n\tpub fn oaknode_footage_get_video_params(footage: OakNodeFootage, index: c_int, out: *mut OakVideoParams) -\u003e c_int;\n\t/// `oaknode_footage_set_video_params`.\n\tpub fn oaknode_footage_set_video_params(footage: OakNodeFootage, index: c_int, params: *const OakVideoParams) -\u003e c_int;\n\t/// `oaknode_footage_get_video_length`.\n\tpub fn oaknode_footage_get_video_length(footage: OakNodeFootage, out_num: *mut i64, out_den: *mut i64) -\u003e c_int;\n\t/// `oaknode_footage_set_cancel_atom`.\n\tpub fn oaknode_footage_set_cancel_atom(footage: OakNodeFootage, atom: OakCancelAtom) -\u003e c_int;\n\n\t// --- sequence.h ---\n\t/// `oaknode_sequence_create`.\n\tpub fn oaknode_sequence_create() -\u003e OakNodeSequence;\n\t/// `oaknode_sequence_free`.\n\tpub fn oaknode_sequence_free(sequence: *mut OakNodeSequence);\n\t/// `oaknode_sequence_set_default_parameters`.\n\tpub fn oaknode_sequence_set_default_parameters(sequence: OakNodeSequence) -\u003e c_int;\n\t/// `oaknode_sequence_as_node`.\n\tpub fn oaknode_sequence_as_node(sequence: OakNodeSequence) -\u003e OakNodeNode;\n\t/// `oaknode_sequence_from_node`.\n\tpub fn oaknode_sequence_from_node(node: OakNodeNode) -\u003e OakNodeSequence;\n\t/// `oaknode_sequence_get_track_list`.\n\tpub fn oaknode_sequence_get_track_list(sequence: OakNodeSequence, r#type: c_int, out: *mut OakNodeTrackList) -\u003e c_int;\n\t/// `oaknode_sequence_get_track_count`.\n\tpub fn oaknode_sequence_get_track_count(sequence: OakNodeSequence, r#type: c_int, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_track_at`.\n\tpub fn oaknode_sequence_get_track_at(sequence: OakNodeSequence, r#type: c_int, index: c_int, out: *mut OakNodeTrack) -\u003e c_int;\n\t/// `oaknode_sequence_get_all_track_count`.\n\tpub fn oaknode_sequence_get_all_track_count(sequence: OakNodeSequence, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_all_track_at`.\n\tpub fn oaknode_sequence_get_all_track_at(sequence: OakNodeSequence, index: c_int, out: *mut OakNodeTrack) -\u003e c_int;\n\t/// `oaknode_sequence_get_playhead`.\n\tpub fn oaknode_sequence_get_playhead(sequence: OakNodeSequence, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_set_playhead`.\n\tpub fn oaknode_sequence_set_playhead(sequence: OakNodeSequence, numerator: c_int, denominator: c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_length`.\n\tpub fn oaknode_sequence_get_length(sequence: OakNodeSequence, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_video_length`.\n\tpub fn oaknode_sequence_get_video_length(sequence: OakNodeSequence, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_audio_length`.\n\tpub fn oaknode_sequence_get_audio_length(sequence: OakNodeSequence, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_verify_length`.\n\tpub fn oaknode_sequence_verify_length(sequence: OakNodeSequence) -\u003e c_int;\n\t/// `oaknode_sequence_get_video_stream_count`.\n\tpub fn oaknode_sequence_get_video_stream_count(sequence: OakNodeSequence, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_audio_stream_count`.\n\tpub fn oaknode_sequence_get_audio_stream_count(sequence: OakNodeSequence, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_sequence_get_video_params`.\n\tpub fn oaknode_sequence_get_video_params(sequence: OakNodeSequence, index: c_int, out: *mut OakVideoParams) -\u003e c_int;\n\t/// `oaknode_sequence_set_video_params`.\n\tpub fn oaknode_sequence_set_video_params(sequence: OakNodeSequence, index: c_int, params: OakVideoParams) -\u003e c_int;\n\t/// `oaknode_sequence_get_audio_params`.\n\tpub fn oaknode_sequence_get_audio_params(sequence: OakNodeSequence, index: c_int, out: *mut *const c_void) -\u003e c_int;\n\t/// `oaknode_sequence_set_audio_params`.\n\tpub fn oaknode_sequence_set_audio_params(sequence: OakNodeSequence, index: c_int, params: *const c_void) -\u003e c_int;\n\n\t// --- track.h ---\n\t/// `oaknode_track_as_node`.\n\tpub fn oaknode_track_as_node(track: OakNodeTrack) -\u003e OakNodeNode;\n\t/// `oaknode_track_create`.\n\tpub fn oaknode_track_create(r#type: c_int) -\u003e OakNodeTrack;\n\t/// `oaknode_track_free`.\n\tpub fn oaknode_track_free(track: *mut OakNodeTrack);\n\t/// `oaknode_track_get_type`.\n\tpub fn oaknode_track_get_type(track: OakNodeTrack, r#type: *mut c_int) -\u003e c_int;\n\t/// `oaknode_track_get_length`.\n\tpub fn oaknode_track_get_length(track: OakNodeTrack, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_track_get_block_count`.\n\tpub fn oaknode_track_get_block_count(track: OakNodeTrack, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_track_get_block_at` (borrowed handle out).\n\tpub fn oaknode_track_get_block_at(track: OakNodeTrack, index: c_int, out: *mut OakNodeBlock) -\u003e c_int;\n\t/// `oaknode_track_append_block`.\n\tpub fn oaknode_track_append_block(track: OakNodeTrack, block: OakNodeBlock) -\u003e c_int;\n\t/// `oaknode_track_set_type`.\n\tpub fn oaknode_track_set_type(track: OakNodeTrack, r#type: c_int) -\u003e c_int;\n\t/// `oaknode_track_get_index`.\n\tpub fn oaknode_track_get_index(track: OakNodeTrack, index: *mut c_int) -\u003e c_int;\n\t/// `oaknode_track_set_index`.\n\tpub fn oaknode_track_set_index(track: OakNodeTrack, index: c_int) -\u003e c_int;\n\t/// `oaknode_track_get_sequence`.\n\tpub fn oaknode_track_get_sequence(track: OakNodeTrack, out: *mut OakNodeSequence) -\u003e c_int;\n\t/// `oaknode_tracklist_get_sequence`.\n\tpub fn oaknode_tracklist_get_sequence(list: OakNodeTrackList, out: *mut OakNodeSequence) -\u003e c_int;\n\t/// `oaknode_tracklist_get_track_input_id`.\n\tpub fn oaknode_tracklist_get_track_input_id(list: OakNodeTrackList, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_array_append`.\n\tpub fn oaknode_tracklist_array_append(list: OakNodeTrackList) -\u003e c_int;\n\t/// `oaknode_tracklist_array_remove_last`.\n\tpub fn oaknode_tracklist_array_remove_last(list: OakNodeTrackList) -\u003e c_int;\n\t/// `oaknode_tracklist_get_array_index_from_cache_index`.\n\tpub fn oaknode_tracklist_get_array_index_from_cache_index(list: OakNodeTrackList, cache_index: c_int, out_index: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_get_type`.\n\tpub fn oaknode_tracklist_get_type(list: OakNodeTrackList, r#type: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_get_track_count`.\n\tpub fn oaknode_tracklist_get_track_count(list: OakNodeTrackList, count: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_get_track_at`.\n\tpub fn oaknode_tracklist_get_track_at(list: OakNodeTrackList, index: c_int, out: *mut OakNodeTrack) -\u003e c_int;\n\t/// `oaknode_tracklist_get_total_length`.\n\tpub fn oaknode_tracklist_get_total_length(list: OakNodeTrackList, numerator: *mut c_int, denominator: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_get_array_size`.\n\tpub fn oaknode_tracklist_get_array_size(list: OakNodeTrackList, size: *mut c_int) -\u003e c_int;\n\t/// `oaknode_tracklist_add_track`.\n\tpub fn oaknode_tracklist_add_track(list: OakNodeTrackList, track: OakNodeTrack) -\u003e c_int;\n\t/// `oaknode_tracklist_remove_track`.\n\tpub fn oaknode_tracklist_remove_track(list: OakNodeTrackList, track: OakNodeTrack) -\u003e c_int;\n\n\t// --- colormanager.h ---\n\t/// `oaknode_colormanager_init`.\n\tpub fn oaknode_colormanager_init(project: OakNodeProject) -\u003e OakNodeColorManager;\n\t/// `oaknode_colormanager_free`.\n\tpub fn oaknode_colormanager_free(manager: *mut OakNodeColorManager);\n\t/// `oaknode_colormanager_wrap_borrowed`.\n\tpub fn oaknode_colormanager_wrap_borrowed(native_manager: *mut c_void) -\u003e OakNodeColorManager;\n\t/// `oaknode_colormanager_initialize`.\n\tpub fn oaknode_colormanager_initialize(manager: OakNodeColorManager) -\u003e c_int;\n\t/// `oaknode_colormanager_set_up_default_config`.\n\tpub fn oaknode_colormanager_set_up_default_config() -\u003e c_int;\n\n\t// --- serializer.h ---\n\t/// `oaknode_serializer_initialize`.\n\tpub fn oaknode_serializer_initialize() -\u003e c_int;\n\t/// `oaknode_serializer_shutdown`.\n\tpub fn oaknode_serializer_shutdown();\n\t/// `oaknode_serializer_savedata_create`.\n\tpub fn oaknode_serializer_savedata_create(load_type: c_int, project: OakNodeProject) -\u003e OakNodeSerializerSaveData;\n\t/// `oaknode_serializer_savedata_free`.\n\tpub fn oaknode_serializer_savedata_free(save_data: *mut OakNodeSerializerSaveData);\n\t/// `oaknode_serializer_savedata_set_nodes`.\n\tpub fn oaknode_serializer_savedata_set_nodes(save_data: OakNodeSerializerSaveData, nodes: *const OakNodeNode, count: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_savedata_set_property`.\n\tpub fn oaknode_serializer_savedata_set_property(save_data: OakNodeSerializerSaveData, node: OakNodeNode, key: *const c_char, value: *const c_char) -\u003e c_int;\n\t/// `oaknode_serializer_save_to_xml`.\n\tpub fn oaknode_serializer_save_to_xml(save_data: OakNodeSerializerSaveData, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_load_from_xml`.\n\tpub fn oaknode_serializer_load_from_xml(project: OakNodeProject, xml: *const c_char, load_type: c_int, out_result: *mut c_int, out_load_data: *mut OakNodeSerializerLoadData, details_buf: *mut c_char, details_buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_loaddata_free`.\n\tpub fn oaknode_serializer_loaddata_free(load_data: *mut OakNodeSerializerLoadData);\n\t/// `oaknode_serializer_loaddata_node_count`.\n\tpub fn oaknode_serializer_loaddata_node_count(load_data: OakNodeSerializerLoadData) -\u003e c_int;\n\t/// `oaknode_serializer_loaddata_node_at`.\n\tpub fn oaknode_serializer_loaddata_node_at(load_data: OakNodeSerializerLoadData, index: c_int) -\u003e OakNodeNode;\n\t/// `oaknode_serializer_loaddata_get_property`.\n\tpub fn oaknode_serializer_loaddata_get_property(load_data: OakNodeSerializerLoadData, node: OakNodeNode, key: *const c_char, buf: *mut c_char, buf_size: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_loaddata_connection_count`.\n\tpub fn oaknode_serializer_loaddata_connection_count(load_data: OakNodeSerializerLoadData) -\u003e c_int;\n\t/// `oaknode_serializer_loaddata_connection_at`.\n\tpub fn oaknode_serializer_loaddata_connection_at(load_data: OakNodeSerializerLoadData, index: c_int, out_output_node: *mut OakNodeNode, out_input_node: *mut OakNodeNode, input_id_buf: *mut c_char, input_id_buf_size: c_int, out_element: *mut c_int) -\u003e c_int;\n\t/// `oaknode_serializer_save_to_file`.\n\tpub fn oaknode_serializer_save_to_file(project: OakNodeProject, filename: *const c_char, use_compression: c_int, out_code: *mut c_int, details: *mut c_char, details_size: c_int) -\u003e c_int;\n\t/// `oaknode_serializer_load_from_file`.\n\tpub fn oaknode_serializer_load_from_file(project: OakNodeProject, filename: *const c_char, out_code: *mut c_int, details: *mut c_char, details_size: c_int) -\u003e c_int;\n}\n","traces":[{"line":90,"address":[],"length":0,"stats":{"Line":86}},{"line":91,"address":[],"length":0,"stats":{"Line":258}},{"line":92,"address":[],"length":0,"stats":{"Line":172}},{"line":93,"address":[],"length":0,"stats":{"Line":86}}],"covered":4,"coverable":4},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","render.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oakrender C ABI imports. The task module reaches the render side through\n//! `include/render/cancelatom.h` (task cancellation), `include/render/ticket.h`\n//! (frame/audio render tickets), `include/render/copier.h` (export project\n//! copy) and `include/render/color.h` (color processor). Signatures mirror\n//! the headers verbatim.\n\nuse std::ffi::{c_char, c_int, c_void};\n\nuse crate::bridge::codec::OakFrame;\nuse crate::bridge::common::{OakAudioParams, OakColorTransform, OakVideoParams};\nuse crate::bridge::node::{OakNodeColorManager, OakNodeNode, OakNodeProject};\nuse crate::handle::CHandle;\n\n/// Mirror of `OakCancelAtom` (`include/render/cancelatom.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakCancelAtom {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\nimpl OakCancelAtom {\n\t/// The empty (null) atom.\n\tpub fn null() -\u003e Self {\n\t\tOakCancelAtom {\n\t\t\tctx: std::ptr::null_mut(),\n\t\t\taddref: None,\n\t\t\trelease: None,\n\t\t\tabi_version: 0,\n\t\t}\n\t}\n\n\t/// Whether the atom is empty (`ctx == NULL`).\n\tpub fn is_null(\u0026self) -\u003e bool {\n\t\tself.ctx.is_null()\n\t}\n\n\t/// Adopt the fields of a generic `CHandle` (layout-identical) — the task\n\t/// module stores the atom as a `CHandle` for its public API.\n\tpub fn from_chandle(h: CHandle) -\u003e Self {\n\t\tOakCancelAtom {\n\t\t\tctx: h.ctx,\n\t\t\taddref: h.addref,\n\t\t\trelease: h.release,\n\t\t\tabi_version: h.abi_version,\n\t\t}\n\t}\n\n\t/// Convert back to a generic `CHandle` (layout-identical).\n\tpub fn to_chandle(\u0026self) -\u003e CHandle {\n\t\tCHandle {\n\t\t\tctx: self.ctx,\n\t\t\taddref: self.addref,\n\t\t\trelease: self.release,\n\t\t\tabi_version: self.abi_version,\n\t\t}\n\t}\n}\n\n/// Mirror of `OakRenderTicket` (`include/render/ticket.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakRenderTicket {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\n/// Mirror of `OakRenderCache` (`include/render/cache.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakRenderCache {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\nimpl OakRenderCache {\n\t/// The empty (null) cache handle.\n\tpub fn null() -\u003e Self {\n\t\tOakRenderCache {\n\t\t\tctx: std::ptr::null_mut(),\n\t\t\taddref: None,\n\t\t\trelease: None,\n\t\t\tabi_version: 0,\n\t\t}\n\t}\n\n\t/// Convert to the layout-identical generic `CHandle`.\n\tpub fn to_chandle(\u0026self) -\u003e CHandle {\n\t\tCHandle {\n\t\t\tctx: self.ctx,\n\t\t\taddref: self.addref,\n\t\t\trelease: self.release,\n\t\t\tabi_version: self.abi_version,\n\t\t}\n\t}\n\n\t/// Adopt the fields of a generic `CHandle` (layout-identical).\n\tpub fn from_chandle(h: CHandle) -\u003e Self {\n\t\tOakRenderCache {\n\t\t\tctx: h.ctx,\n\t\t\taddref: h.addref,\n\t\t\trelease: h.release,\n\t\t\tabi_version: h.abi_version,\n\t\t}\n\t}\n}\n\n/// Mirror of `OakRenderProjectCopier` (`include/render/copier.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakRenderProjectCopier {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\n/// Mirror of `OakColorProcessor` (`include/render/color.h`).\n#[repr(C)]\n#[derive(Clone, Copy)]\npub struct OakColorProcessor {\n\t/// Opaque pointer to the reference-counted object.\n\tpub ctx: *mut c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut c_void)\u003e,\n\t/// ABI version (`OAKRENDER_ABI_VERSION`).\n\tpub abi_version: u32,\n}\n\nimpl OakColorProcessor {\n\t/// Convert to the layout-identical generic `CHandle`.\n\tpub fn to_chandle(\u0026self) -\u003e CHandle {\n\t\tCHandle {\n\t\t\tctx: self.ctx,\n\t\t\taddref: self.addref,\n\t\t\trelease: self.release,\n\t\t\tabi_version: self.abi_version,\n\t\t}\n\t}\n\n\t/// Adopt the fields of a generic `CHandle` (layout-identical).\n\tpub fn from_chandle(h: CHandle) -\u003e Self {\n\t\tOakColorProcessor {\n\t\t\tctx: h.ctx,\n\t\t\taddref: h.addref,\n\t\t\trelease: h.release,\n\t\t\tabi_version: h.abi_version,\n\t\t}\n\t}\n}\n\n/// Mirror of `oakrender_ticket_finished_fn` (`include/render/ticket.h`).\n///\n/// Two arguments — `(ticket, userdata)` — mirroring the header verbatim.\n/// The ticket is a borrowed copy of the submitter's handle (the submitter\n/// keeps ownership and releases it); cancelled tickets fire with a NULL\n/// result observed through `oakrender_ticket_get_frame`.\npub type OakRenderTicketFinishedFn = unsafe extern \"C\" fn(ticket: OakRenderTicket, userdata: *mut c_void);\n\n/// Mirror of `oakrender_video_ticket_params` (`include/render/ticket.h`).\n#[repr(C)]\npub struct OakRenderVideoTicketParams {\n\t/// Connected texture output node (borrowed).\n\tpub output_node: OakNodeNode,\n\t/// Video params by value (oakcommon handle).\n\tpub video_params: OakVideoParams,\n\t/// Borrowed oakcore audio params, may be null ctx.\n\tpub audio_params: *const OakAudioParams,\n\t/// Frame timestamp numerator (seconds rational).\n\tpub time_num: i64,\n\t/// Frame timestamp denominator.\n\tpub time_den: i64,\n\t/// Borrowed color manager; empty ctx = NULL.\n\tpub color_manager: OakNodeColorManager,\n\t/// `olive::RenderMode::Mode` as int.\n\tpub mode: c_int,\n\t/// Forced output width (0 = off).\n\tpub force_width: c_int,\n\t/// Forced output height (0 = off).\n\tpub force_height: c_int,\n\t/// Forced color matrix (used when `has_force_matrix` != 0).\n\tpub force_matrix: [f64; 16],\n\t/// Whether `force_matrix` is in effect.\n\tpub has_force_matrix: c_int,\n\t/// Forced pixel format (`PixelFormat` as int, -1 = off).\n\tpub force_format: c_int,\n\t/// Forced channel count (0 = off).\n\tpub force_channel_count: c_int,\n\t/// Forced color output (borrowed; empty ctx = none).\n\tpub force_color_output: OakColorProcessor,\n\t/// Forced color transform by value (empty ctx = default).\n\tpub force_color_transform: OakColorTransform,\n\t/// Borrowed frame cache; empty ctx = none.\n\tpub cache: OakRenderCache,\n}\n\nextern \"C\" {\n\t// --- cancelatom.h ---\n\t/// `oakrender_cancelatom_init`.\n\tpub fn oakrender_cancelatom_init() -\u003e OakCancelAtom;\n\t/// `oakrender_cancelatom_free`.\n\tpub fn oakrender_cancelatom_free(atom: *mut OakCancelAtom);\n\t/// `oakrender_cancelatom_cancel`.\n\tpub fn oakrender_cancelatom_cancel(atom: OakCancelAtom) -\u003e c_int;\n\t/// `oakrender_cancelatom_is_cancelled`.\n\tpub fn oakrender_cancelatom_is_cancelled(atom: OakCancelAtom, cancelled: *mut c_int) -\u003e c_int;\n\t/// `oakrender_cancelatom_heard_cancel`.\n\tpub fn oakrender_cancelatom_heard_cancel(atom: OakCancelAtom, heard: *mut c_int) -\u003e c_int;\n\n\t// --- ticket.h ---\n\t/// `oakrender_ticket_render_frame`.\n\tpub fn oakrender_ticket_render_frame(\n\t\tparams: *const OakRenderVideoTicketParams,\n\t\tcb: Option\u003cOakRenderTicketFinishedFn\u003e,\n\t\tuserdata: *mut c_void,\n\t) -\u003e OakRenderTicket;\n\t/// `oakrender_ticket_render_audio`.\n\tpub fn oakrender_ticket_render_audio(\n\t\toutput_node: OakNodeNode,\n\t\tin_num: i64,\n\t\tin_den: i64,\n\t\tout_num: i64,\n\t\tout_den: i64,\n\t\tparams: *const OakAudioParams,\n\t\tmode: c_int,\n\t\tcb: Option\u003cOakRenderTicketFinishedFn\u003e,\n\t\tuserdata: *mut c_void,\n\t) -\u003e OakRenderTicket;\n\t/// `oakrender_ticket_is_finished`.\n\tpub fn oakrender_ticket_is_finished(ticket: OakRenderTicket) -\u003e c_int;\n\t/// `oakrender_ticket_wait`.\n\tpub fn oakrender_ticket_wait(ticket: OakRenderTicket) -\u003e c_int;\n\t/// `oakrender_ticket_cancel`.\n\tpub fn oakrender_ticket_cancel(ticket: OakRenderTicket) -\u003e c_int;\n\t/// `oakrender_ticket_get_type`.\n\tpub fn oakrender_ticket_get_type(ticket: OakRenderTicket) -\u003e c_int;\n\t/// `oakrender_ticket_get_frame`.\n\tpub fn oakrender_ticket_get_frame(ticket: OakRenderTicket, out: *mut OakFrame) -\u003e c_int;\n\t/// `oakrender_ticket_get_time`.\n\tpub fn oakrender_ticket_get_time(ticket: OakRenderTicket, out_num: *mut i64, out_den: *mut i64) -\u003e c_int;\n\t/// `oakrender_ticket_get_range`.\n\tpub fn oakrender_ticket_get_range(\n\t\tticket: OakRenderTicket,\n\t\tin_num: *mut i64,\n\t\tin_den: *mut i64,\n\t\tout_num: *mut i64,\n\t\tout_den: *mut i64,\n\t) -\u003e c_int;\n\t/// `oakrender_ticket_get_samples`.\n\tpub fn oakrender_ticket_get_samples(ticket: OakRenderTicket, out: *mut *mut std::ffi::c_void) -\u003e c_int;\n\t/// `oakrender_ticket_free`.\n\tpub fn oakrender_ticket_free(ticket: *mut OakRenderTicket);\n\n\t// --- copier.h ---\n\t/// `oakrender_project_copier_create`.\n\tpub fn oakrender_project_copier_create() -\u003e OakRenderProjectCopier;\n\t/// `oakrender_project_copier_free`.\n\tpub fn oakrender_project_copier_free(copier: *mut OakRenderProjectCopier);\n\t/// `oakrender_project_copier_set_project`.\n\tpub fn oakrender_project_copier_set_project(\n\t\tcopier: OakRenderProjectCopier,\n\t\tproject: OakNodeProject,\n\t) -\u003e c_int;\n\t/// `oakrender_project_copier_get_copy`.\n\tpub fn oakrender_project_copier_get_copy(\n\t\tcopier: OakRenderProjectCopier,\n\t\toriginal: OakNodeNode,\n\t) -\u003e OakNodeNode;\n\t/// `oakrender_project_copier_get_copied_project`.\n\tpub fn oakrender_project_copier_get_copied_project(\n\t\tcopier: OakRenderProjectCopier,\n\t) -\u003e OakNodeProject;\n\n\t// --- color.h ---\n\t/// `oakrender_color_processor_create`.\n\tpub fn oakrender_color_processor_create(\n\t\tsrc_space: *const c_char,\n\t\tdst_space: *const c_char,\n\t\tdisplay: *const c_char,\n\t\tview: *const c_char,\n\t\tlook: *const c_char,\n\t) -\u003e OakColorProcessor;\n\t/// `oakrender_color_processor_free`.\n\tpub fn oakrender_color_processor_free(processor: *mut OakColorProcessor);\n\t/// `oakrender_color_processor_is_valid`.\n\tpub fn oakrender_color_processor_is_valid(processor: OakColorProcessor) -\u003e c_int;\n\n\t// --- renderer.h ---\n\t/// `oakrender_codec_frame_free` — release a frame handed out by a\n\t/// render ticket.\n\tpub fn oakrender_codec_frame_free(frame: *mut crate::bridge::codec::OakFrame);\n\n\t// --- manager.h ---\n\t/// `oakrender_manager_set_aggressive_gc`.\n\tpub fn oakrender_manager_set_aggressive_gc(enabled: c_int) -\u003e c_int;\n\n\t// --- cache.h ---\n\t/// `oakrender_cache_get_invalidated_ranges` — two-stage range query on\n\t/// a frame cache; returns the number of ranges (or the required flat\n\t/// array size).\n\tpub fn oakrender_cache_get_invalidated_ranges(\n\t\tcache: OakRenderCache,\n\t\tin_num: i64,\n\t\tin_den: i64,\n\t\tout_num: i64,\n\t\tout_den: i64,\n\t\tflat: *mut i64,\n\t\tflat_size: c_int,\n\t) -\u003e c_int;\n\t/// `oakrender_cache_free`.\n\tpub fn oakrender_cache_free(cache: *mut OakRenderCache);\n}\n","traces":[{"line":46,"address":[],"length":0,"stats":{"Line":3}},{"line":48,"address":[],"length":0,"stats":{"Line":6}},{"line":56,"address":[],"length":0,"stats":{"Line":0}},{"line":57,"address":[],"length":0,"stats":{"Line":0}},{"line":62,"address":[],"length":0,"stats":{"Line":207}},{"line":64,"address":[],"length":0,"stats":{"Line":414}},{"line":65,"address":[],"length":0,"stats":{"Line":414}},{"line":66,"address":[],"length":0,"stats":{"Line":207}},{"line":67,"address":[],"length":0,"stats":{"Line":207}},{"line":72,"address":[],"length":0,"stats":{"Line":91}},{"line":74,"address":[],"length":0,"stats":{"Line":182}},{"line":75,"address":[],"length":0,"stats":{"Line":182}},{"line":76,"address":[],"length":0,"stats":{"Line":91}},{"line":77,"address":[],"length":0,"stats":{"Line":91}},{"line":112,"address":[],"length":0,"stats":{"Line":1}},{"line":114,"address":[],"length":0,"stats":{"Line":2}},{"line":122,"address":[],"length":0,"stats":{"Line":1}},{"line":124,"address":[],"length":0,"stats":{"Line":2}},{"line":125,"address":[],"length":0,"stats":{"Line":2}},{"line":126,"address":[],"length":0,"stats":{"Line":1}},{"line":127,"address":[],"length":0,"stats":{"Line":1}},{"line":132,"address":[],"length":0,"stats":{"Line":83}},{"line":134,"address":[],"length":0,"stats":{"Line":166}},{"line":135,"address":[],"length":0,"stats":{"Line":166}},{"line":136,"address":[],"length":0,"stats":{"Line":83}},{"line":137,"address":[],"length":0,"stats":{"Line":83}},{"line":172,"address":[],"length":0,"stats":{"Line":0}},{"line":174,"address":[],"length":0,"stats":{"Line":0}},{"line":175,"address":[],"length":0,"stats":{"Line":0}},{"line":176,"address":[],"length":0,"stats":{"Line":0}},{"line":177,"address":[],"length":0,"stats":{"Line":0}},{"line":182,"address":[],"length":0,"stats":{"Line":83}},{"line":184,"address":[],"length":0,"stats":{"Line":166}},{"line":185,"address":[],"length":0,"stats":{"Line":166}},{"line":186,"address":[],"length":0,"stats":{"Line":83}},{"line":187,"address":[],"length":0,"stats":{"Line":83}}],"covered":29,"coverable":36},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","timeline.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oaktimeline C ABI imports. The OTIO load task builds tracks through the\n//! timeline edit factories (`include/timeline/edit.h`) instead of the raw\n//! track-list primitives, matching `src/task/src/project/loadotio/loadotio.cpp`.\n//! Signatures mirror the header verbatim.\n\nuse crate::bridge::node::OakNodeTrackList;\nuse crate::bridge::undo::OakUndoCommand;\n\nextern \"C\" {\n\t/// `oaktimeline_add_track_command` (`include/timeline/edit.h`) —\n\t/// olive::TimelineAddTrackCommand.\n\tpub fn oaktimeline_add_track_command(list: OakNodeTrackList) -\u003e OakUndoCommand;\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","bridge","undo.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oakundo C ABI imports. Import/load tasks build undo commands through the\n//! C ABI vtable (`oakundo_command_init` with Rust closures as userdata) —\n//! no C++ UndoCommand subclassing exists on this side. Mirrors\n//! `include/undo/undocommand.h` verbatim.\n\nuse std::ffi::{c_int, c_void};\n\nuse crate::handle::CHandle;\n\n/// `OakUndoCommand` (`include/undo/undocommand.h`).\npub type OakUndoCommand = CHandle;\n\n/// Mirror of `OakUndoCommandVtable` (`include/undo/undocommand.h`).\n#[repr(C)]\npub struct OakUndoCommandVtable {\n\t/// Redo callback; may be NULL.\n\tpub redo: Option\u003cunsafe extern \"C\" fn(userdata: *mut c_void)\u003e,\n\t/// Undo callback; may be NULL.\n\tpub undo: Option\u003cunsafe extern \"C\" fn(userdata: *mut c_void)\u003e,\n\t/// Free callback; may be NULL.\n\tpub free_fn: Option\u003cunsafe extern \"C\" fn(userdata: *mut c_void)\u003e,\n}\n\nextern \"C\" {\n\t/// `oakundo_command_init` (vtable command).\n\tpub fn oakundo_command_init(vtable: *const OakUndoCommandVtable, userdata: *mut c_void) -\u003e OakUndoCommand;\n\t/// `oakundo_command_init_multi`.\n\tpub fn oakundo_command_init_multi() -\u003e OakUndoCommand;\n\t/// `oakundo_command_multi_add_child`.\n\tpub fn oakundo_command_multi_add_child(multi: OakUndoCommand, child: OakUndoCommand) -\u003e c_int;\n\t/// `oakundo_command_multi_child_count`.\n\tpub fn oakundo_command_multi_child_count(multi: OakUndoCommand, out_count: *mut c_int) -\u003e c_int;\n\t/// `oakundo_command_multi_child`.\n\tpub fn oakundo_command_multi_child(multi: OakUndoCommand, index: c_int, out_child: *mut OakUndoCommand) -\u003e c_int;\n\t/// `oakundo_command_redo_now`.\n\tpub fn oakundo_command_redo_now(command: OakUndoCommand) -\u003e c_int;\n\t/// `oakundo_command_undo_now`.\n\tpub fn oakundo_command_undo_now(command: OakUndoCommand) -\u003e c_int;\n\t/// `oakundo_command_free`.\n\tpub fn oakundo_command_free(command: *mut OakUndoCommand);\n}\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","codecbridge.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! Codec task submitter registration, mirroring\n//! `src/task/src/codecbridge.h`.\n//!\n//! Wires oakcodec's task-submit callback (`oakcodec_set_task_submit_cb`) so\n//! conform/proxy requests from the codec side land back in the task module.\n//! This is a two-module coupling; the actual callback signatures live in\n//! `crate::bridge::codec` mirroring `include/codec/task.h` verbatim.\n//!\n//! CPP-PARITY: src/task/src/codecbridge.h\n\nuse std::ffi::{c_char, c_int, c_void};\n\nuse crate::bridge;\nuse crate::conform::ConformTask;\nuse crate::error::{Error, Result};\nuse crate::proxy::{ProxyParams, ProxyTask};\nuse crate::task::Task;\n\n/// Convert an oakcodec proxy-params POD into the Rust [`ProxyParams`].\nfn proxy_params_from_codec(params: \u0026bridge::codec::OakCodecProxyParams) -\u003e ProxyParams {\n\tProxyParams {\n\t\twidth: params.width,\n\t\theight: params.height,\n\t\tdivider: params.divider,\n\t\tversion: params.version,\n\t\tcrf: params.crf,\n\t\tinclude_audio: params.include_audio != 0,\n\t\textension: unsafe { cstr_buf_to_string(\u0026params.extension) },\n\t\tpreset: unsafe { cstr_buf_to_string(\u0026params.preset) },\n\t}\n}\n\n/// Read a NUL-terminated char array into a String (lossy).\nunsafe fn cstr_buf_to_string(buf: \u0026[c_char]) -\u003e String {\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tlet bytes = unsafe { std::slice::from_raw_parts(buf.as_ptr() as *const u8, len) };\n\tString::from_utf8_lossy(bytes).into_owned()\n}\n\n/// The installed submit callback, mirroring `submit_codec_task` in\n/// codecbridge.cpp (interim contract: submission is synchronous).\n///\n/// # Safety\n/// `req` must be a valid `OakCodecTaskRequest` or null.\nunsafe extern \"C\" fn submit_codec_task(req: *const bridge::codec::OakCodecTaskRequest, _userdata: *mut c_void) -\u003e c_int {\n\tif req.is_null() {\n\t\treturn bridge::codec::OAKCODEC_E_INVALID;\n\t}\n\tlet request = unsafe { \u0026*req };\n\n\t// Build the concrete task on an outer base so the behavior can be\n\t// driven by `start()`; both share the cancellation atom.\n\tmatch request.kind {\n\t\tbridge::codec::OAKCODEC_TASK_CONFORM =\u003e {\n\t\t\tlet task = ConformTask::new(request);\n\t\t\tlet atom = task.base.get_cancel_atom();\n\t\t\tlet title = task.base.title().to_string();\n\t\t\tlet mut outer = Task::new(\u0026title, atom);\n\t\t\touter.set_behavior(Box::new(task));\n\t\t\tmatch outer.start() {\n\t\t\t\tOk(()) =\u003e 0,\n\t\t\t\tErr(_) =\u003e bridge::codec::OAKCODEC_E_FAILED,\n\t\t\t}\n\t\t}\n\t\tbridge::codec::OAKCODEC_TASK_PROXY =\u003e {\n\t\t\tlet mut codec_params = bridge::codec::OakCodecProxyParams {\n\t\t\t\twidth: 0,\n\t\t\t\theight: 0,\n\t\t\t\tdivider: 0,\n\t\t\t\tversion: 0,\n\t\t\t\tcrf: 0,\n\t\t\t\tinclude_audio: 0,\n\t\t\t\textension: [0; 32],\n\t\t\t\tpreset: [0; 32],\n\t\t\t};\n\t\t\tunsafe {\n\t\t\t\tbridge::codec::oakcodec_proxy_params_default(\u0026mut codec_params);\n\t\t\t}\n\t\t\tlet params = proxy_params_from_codec(\u0026codec_params);\n\t\t\tlet task = ProxyTask::new(request, params);\n\t\t\tlet atom = task.base.get_cancel_atom();\n\t\t\tlet title = task.base.title().to_string();\n\t\t\tlet mut outer = Task::new(\u0026title, atom);\n\t\t\touter.set_behavior(Box::new(task));\n\t\t\tmatch outer.start() {\n\t\t\t\tOk(()) =\u003e 0,\n\t\t\t\tErr(_) =\u003e bridge::codec::OAKCODEC_E_FAILED,\n\t\t\t}\n\t\t}\n\t\t_ =\u003e bridge::codec::OAKCODEC_E_INVALID,\n\t}\n}\n\n/// Install the task-module submitter as oakcodec's callback. Returns\n/// `Err(Error::State)` if already registered.\npub fn register_codec_task_submitter() -\u003e Result\u003c()\u003e {\n\tif is_codec_task_submitter_registered() {\n\t\treturn Err(Error::State);\n\t}\n\tunsafe {\n\t\tbridge::codec::oakcodec_set_task_submit_cb(Some(submit_codec_task), std::ptr::null_mut());\n\t}\n\tOk(())\n}\n\n/// Remove the task-module submitter from oakcodec. Idempotent.\npub fn unregister_codec_task_submitter() -\u003e Result\u003c()\u003e {\n\tunsafe {\n\t\tbridge::codec::oakcodec_set_task_submit_cb(None, std::ptr::null_mut());\n\t}\n\tOk(())\n}\n\n/// Whether a submitter is currently installed (queries oakcodec).\npub fn is_codec_task_submitter_registered() -\u003e bool {\n\tunsafe { bridge::codec::oakcodec_task_submit_is_registered() != 0 }\n}\n","traces":[{"line":36,"address":[],"length":0,"stats":{"Line":7}},{"line":38,"address":[],"length":0,"stats":{"Line":14}},{"line":39,"address":[],"length":0,"stats":{"Line":14}},{"line":40,"address":[],"length":0,"stats":{"Line":14}},{"line":41,"address":[],"length":0,"stats":{"Line":14}},{"line":42,"address":[],"length":0,"stats":{"Line":14}},{"line":43,"address":[],"length":0,"stats":{"Line":14}},{"line":44,"address":[],"length":0,"stats":{"Line":21}},{"line":45,"address":[],"length":0,"stats":{"Line":7}},{"line":50,"address":[],"length":0,"stats":{"Line":14}},{"line":51,"address":[],"length":0,"stats":{"Line":175}},{"line":52,"address":[],"length":0,"stats":{"Line":56}},{"line":53,"address":[],"length":0,"stats":{"Line":42}},{"line":61,"address":[],"length":0,"stats":{"Line":16}},{"line":62,"address":[],"length":0,"stats":{"Line":32}},{"line":63,"address":[],"length":0,"stats":{"Line":1}},{"line":65,"address":[],"length":0,"stats":{"Line":30}},{"line":69,"address":[],"length":0,"stats":{"Line":15}},{"line":71,"address":[],"length":0,"stats":{"Line":21}},{"line":72,"address":[],"length":0,"stats":{"Line":21}},{"line":73,"address":[],"length":0,"stats":{"Line":21}},{"line":74,"address":[],"length":0,"stats":{"Line":28}},{"line":75,"address":[],"length":0,"stats":{"Line":21}},{"line":76,"address":[],"length":0,"stats":{"Line":7}},{"line":77,"address":[],"length":0,"stats":{"Line":2}},{"line":78,"address":[],"length":0,"stats":{"Line":5}},{"line":89,"address":[],"length":0,"stats":{"Line":7}},{"line":90,"address":[],"length":0,"stats":{"Line":7}},{"line":93,"address":[],"length":0,"stats":{"Line":7}},{"line":95,"address":[],"length":0,"stats":{"Line":21}},{"line":96,"address":[],"length":0,"stats":{"Line":28}},{"line":97,"address":[],"length":0,"stats":{"Line":21}},{"line":98,"address":[],"length":0,"stats":{"Line":21}},{"line":99,"address":[],"length":0,"stats":{"Line":28}},{"line":100,"address":[],"length":0,"stats":{"Line":21}},{"line":101,"address":[],"length":0,"stats":{"Line":7}},{"line":102,"address":[],"length":0,"stats":{"Line":2}},{"line":103,"address":[],"length":0,"stats":{"Line":5}},{"line":106,"address":[],"length":0,"stats":{"Line":1}},{"line":112,"address":[],"length":0,"stats":{"Line":22}},{"line":113,"address":[],"length":0,"stats":{"Line":22}},{"line":114,"address":[],"length":0,"stats":{"Line":3}},{"line":117,"address":[],"length":0,"stats":{"Line":38}},{"line":119,"address":[],"length":0,"stats":{"Line":19}},{"line":123,"address":[],"length":0,"stats":{"Line":34}},{"line":125,"address":[],"length":0,"stats":{"Line":68}},{"line":127,"address":[],"length":0,"stats":{"Line":34}},{"line":131,"address":[],"length":0,"stats":{"Line":22}},{"line":132,"address":[],"length":0,"stats":{"Line":22}}],"covered":49,"coverable":49},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","conform.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ConformTask`, mirroring `src/task/src/conform/conform.h`.\n//!\n//! Transcodes an audio stream to a PCM cache file (oakcodec kind\n//! `OAKCODEC_TASK_CONFORM`) and reports progress as it decodes.\n//!\n//! CPP-PARITY: src/task/src/conform/conform.h\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::task::{Task, TaskBehavior};\n\n/// A conform task: copies/channels of one audio stream into per-channel\n/// working PCM cache files, then renames them to the final names.\npub struct ConformTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Absolute input media filename.\n\tpub input_filename: String,\n\t/// Final destination path (replaces the source path extension).\n\tpub output_filename: String,\n\t/// Audio stream index inside the source media.\n\tpub stream_index: i32,\n\t/// Target sample rate (Hz).\n\tpub sample_rate: i32,\n\t/// Target channel layout mask (ffmpeg-style).\n\tpub channel_layout: u64,\n\t/// Target sample format (enum as int; `oakcore_rs::SampleFormat`).\n\tpub sample_format: i32,\n\t/// Resolved final per-channel filenames (from [`ConformTask::derive_filenames`]).\n\tfinal_names: Vec\u003cString\u003e,\n\t/// Resolved working per-channel filenames.\n\tworking_names: Vec\u003cString\u003e,\n}\n\nimpl ConformTask {\n\t/// Build a conform task from an oakcodec request, mirroring the C++\n\t/// constructor.\n\tpub fn new(request: \u0026bridge::codec::OakCodecTaskRequest) -\u003e ConformTask {\n\t\tlet input = unsafe { crate::ffi::taskhandle::cstr_to_string(request.input_filename) };\n\t\tlet output = unsafe { crate::ffi::taskhandle::cstr_to_string(request.output_filename) };\n\t\tlet title = format!(\"Conforming Audio {}:{}\", input, request.stream_index);\n\t\tConformTask {\n\t\t\tbase: Task::new(\u0026title, CHandle::null()),\n\t\t\tinput_filename: input,\n\t\t\toutput_filename: output,\n\t\t\tstream_index: request.stream_index,\n\t\t\tsample_rate: request.sample_rate,\n\t\t\tchannel_layout: request.channel_layout,\n\t\t\tsample_format: request.sample_format,\n\t\t\tfinal_names: Vec::new(),\n\t\t\tworking_names: Vec::new(),\n\t\t}\n\t}\n\n\t/// Derive the final and working PCM filenames for the given first-channel\n\t/// final filename and channel count.\n\t///\n\t/// C++ contract: the first-channel final name must end in `.0.pcm`; the\n\t/// final name for channel `i` replaces the trailing index, and the\n\t/// working name appends `.working`. See `derive_filenames` in\n\t/// conform.cpp — this is a parity/golden candidate (see\n\t/// tests/parity_test.rs).\n\t///\n\t/// CPP-PARITY: src/task/src/conform/conform.cpp (derive_filenames)\n\tpub fn derive_filenames(first_channel_final: \u0026str, channel_count: usize) -\u003e Result\u003c(Vec\u003cString\u003e, Vec\u003cString\u003e)\u003e {\n\t\tconst SUFFIX: \u0026str = \".0.pcm\";\n\n\t\tif channel_count \u003c 1 || first_channel_final.len() \u003c= SUFFIX.len()\n\t\t\t|| !first_channel_final.ends_with(SUFFIX)\n\t\t{\n\t\t\treturn Err(Error::Failed(\"Invalid conform output filename\".to_string()));\n\t\t}\n\n\t\tlet base = \u0026first_channel_final[..first_channel_final.len() - SUFFIX.len()];\n\t\tlet mut final_names = Vec::with_capacity(channel_count);\n\t\tlet mut working_names = Vec::with_capacity(channel_count);\n\t\tfor i in 0..channel_count {\n\t\t\tlet final_name = format!(\"{base}.{i}.pcm\");\n\t\t\tfinal_names.push(final_name.clone());\n\t\t\tworking_names.push(format!(\"{final_name}.working\"));\n\t\t}\n\t\tOk((final_names, working_names))\n\t}\n}\n\nimpl TaskBehavior for ConformTask {\n\t/// Run the conform via the oakcodec decoder (`bridge::codec`), emitting\n\t/// progress as audio is decoded and written to the working files, then\n\t/// rename working → final.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet channel_count = self.channel_layout.count_ones() as usize;\n\t\tlet (final_names, working_names) =\n\t\t\tSelf::derive_filenames(\u0026self.output_filename, channel_count).map_err(|_| {\n\t\t\t\ttask.set_error(\"Invalid conform output filename\");\n\t\t\t\tError::Failed(\"Invalid conform output filename\".to_string())\n\t\t\t})?;\n\t\tself.final_names = final_names;\n\t\tself.working_names = working_names;\n\n\t\tlet decoder = unsafe { bridge::codec::oakcodec_decoder_init() };\n\t\tif decoder.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create decoder\");\n\t\t\treturn Err(Error::Failed(\"Failed to create decoder\".to_string()));\n\t\t}\n\t\tlet mut decoder = decoder;\n\n\t\tlet result = (|| {\n\t\t\tlet open_result = unsafe {\n\t\t\t\tbridge::codec::oakcodec_decoder_open(decoder, cstr(\u0026self.input_filename), self.stream_index)\n\t\t\t};\n\t\t\tif open_result != 0 {\n\t\t\t\tlet err = decoder_error(decoder);\n\t\t\t\ttask.set_error(\u0026format!(\"Failed to open decoder for audio conform: {err}\"));\n\t\t\t\treturn false;\n\t\t\t}\n\n\t\t\tlet working_ptrs: Vec\u003c*const std::ffi::c_char\u003e =\n\t\t\t\tself.working_names.iter().map(|n| cstr(n)).collect();\n\t\t\tlet conform_result = unsafe {\n\t\t\t\tbridge::codec::oakcodec_decoder_conform_audio(\n\t\t\t\t\tdecoder,\n\t\t\t\t\tworking_ptrs.as_ptr(),\n\t\t\t\t\tworking_ptrs.len() as i32,\n\t\t\t\t\tself.sample_rate,\n\t\t\t\t\tself.channel_layout,\n\t\t\t\t\tself.sample_format,\n\t\t\t\t\tbridge::render::OakCancelAtom::from_chandle(task.get_cancel_atom()),\n\t\t\t\t)\n\t\t\t};\n\t\t\tunsafe {\n\t\t\t\tbridge::codec::oakcodec_decoder_close(decoder);\n\t\t\t}\n\n\t\t\tif conform_result == 0 {\n\t\t\t\t// Rename each working file into place; a failure aborts the\n\t\t\t\t// rest (mirroring the C++ loop).\n\t\t\t\tfor i in 0..self.working_names.len() {\n\t\t\t\t\tif std::fs::rename(\u0026self.working_names[i], \u0026self.final_names[i]).is_err() {\n\t\t\t\t\t\ttask.set_error(\"Failed to move conformed audio into place\");\n\t\t\t\t\t\treturn false;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\ttrue\n\t\t\t} else {\n\t\t\t\t// Clean up any partial working files.\n\t\t\t\tfor name in \u0026self.working_names {\n\t\t\t\t\tlet _ = std::fs::remove_file(name);\n\t\t\t\t}\n\t\t\t\tif conform_result == bridge::codec::OAKCODEC_E_CANCELLED {\n\t\t\t\t\ttask.set_error(\"Audio conform was cancelled\");\n\t\t\t\t} else {\n\t\t\t\t\ttask.set_error(\"Audio conform failed\");\n\t\t\t\t}\n\t\t\t\tfalse\n\t\t\t}\n\t\t})();\n\n\t\tunsafe {\n\t\t\tbridge::codec::oakcodec_decoder_free(\u0026mut decoder);\n\t\t}\n\n\t\tif result {\n\t\t\tOk(())\n\t\t} else {\n\t\t\tErr(Error::Failed(\"Audio conform failed\".to_string()))\n\t\t}\n\t}\n}\n\n/// Two-stage read of the decoder's last error string.\nfn decoder_error(decoder: CHandle) -\u003e String {\n\tlet mut buf = [0i8; 256];\n\tlet needed = unsafe { bridge::codec::oakcodec_decoder_last_error(decoder, buf.as_mut_ptr(), buf.len() as i32) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tunsafe { String::from_utf8_lossy(std::slice::from_raw_parts(buf.as_ptr() as *const u8, len)).into_owned() 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `CustomCacheTask`, mirroring `src/task/src/customcache/customcachetask.h`.\n//!\n//! A task that delegates its completion to an external cache fill: it does\n//! not do work itself but waits until the cache reports it is done (via\n//! [`CustomCacheTask::finish`]) or is cancelled.\n//!\n//! CPP-PARITY: src/task/src/customcache/customcachetask.h\n\nuse std::sync::{Arc, Condvar, Mutex};\n\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\nuse crate::task::{Task, TaskBehavior};\n\n/// Shared state between the parked task thread, the owning cache\n/// ([`CustomCacheTask::finish`]) and the cancel hook. Mirrors the C++\n/// `mutex_`/`wait_cond_`/`cancelled_through_finish_` trio; the cancel atom\n/// copy lets `finish()` wake the task through the same channel the C++\n/// `cancel()` uses.\npub struct CustomCacheState {\n\t/// Set by `finish()` before the cancellation request.\n\tcancelled_through_finish: Mutex\u003cbool\u003e,\n\t/// Parked-task wakeup.\n\twait: Condvar,\n\t/// Callback invoked when the task is cancelled (not by `finish()`).\n\tcancelled_callback: Mutex\u003cOption\u003cBox\u003cdyn FnMut() + Send\u003e\u003e\u003e,\n\t/// Copy of the task's cancellation atom.\n\tatom: CHandle,\n}\n\nimpl CustomCacheState {\n\t/// Mark the cache fill as complete and wake the parked task.\n\tpub fn finish(\u0026self) {\n\t\t*self.cancelled_through_finish.lock().unwrap() = true;\n\t\tif !self.atom.is_null() {\n\t\t\tlet atom = crate::bridge::render::OakCancelAtom::from_chandle(self.atom);\n\t\t\tunsafe {\n\t\t\t\tcrate::bridge::render::oakrender_cancelatom_cancel(atom);\n\t\t\t}\n\t\t}\n\t\tself.wait.notify_one();\n\t}\n\n\t/// The C++ `cancel_event()` hook: fires the callback unless the task was\n\t/// finished through `finish()`, then wakes the parked task.\n\tpub fn cancel_event(\u0026self) {\n\t\tif !*self.cancelled_through_finish.lock().unwrap() {\n\t\t\tif let Some(cb) = self.cancelled_callback.lock().unwrap().as_mut() {\n\t\t\t\tcb();\n\t\t\t}\n\t\t}\n\t\tself.wait.notify_one();\n\t}\n\n\t/// The full C++ `cancel()`: cancel the atom and run the cancel-event\n\t/// hook. Used by the owning cache to abort a fill.\n\tpub fn cancel(\u0026self) {\n\t\tif !self.atom.is_null() {\n\t\t\tlet atom = crate::bridge::render::OakCancelAtom::from_chandle(self.atom);\n\t\t\tunsafe {\n\t\t\t\tcrate::bridge::render::oakrender_cancelatom_cancel(atom);\n\t\t\t}\n\t\t}\n\t\tself.cancel_event();\n\t}\n\n\t/// Whether the fill was completed through `finish()`.\n\tfn is_finished_through_finish(\u0026self) -\u003e bool {\n\t\t*self.cancelled_through_finish.lock().unwrap()\n\t}\n}\n\n/// A cache-fill task that finishes only when [`CustomCacheTask::finish`] is\n/// called by the owning cache. Uses a `Mutex` + `Condvar` to park the task\n/// thread until completion or cancellation.\npub struct CustomCacheTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// The name of the sequence being cached.\n\tpub sequence_name: String,\n\t/// Shared park/notify state.\n\tstate: Arc\u003cCustomCacheState\u003e,\n}\n\nimpl CustomCacheTask {\n\t/// Create a cache-fill task with the given sequence name. The cancel\n\t/// hook that wakes the parked thread is installed on the base task.\n\tpub fn new(sequence_name: \u0026str) -\u003e CustomCacheTask {\n\t\tlet base = Task::new(\u0026format!(\"Caching custom range for \\\"{sequence_name}\\\"\"), CHandle::null());\n\t\tlet state = Arc::new(CustomCacheState {\n\t\t\tcancelled_through_finish: Mutex::new(false),\n\t\t\twait: Condvar::new(),\n\t\t\tcancelled_callback: Mutex::new(None),\n\t\t\tatom: base.get_cancel_atom(),\n\t\t});\n\t\tlet mut task = CustomCacheTask {\n\t\t\tbase,\n\t\t\tsequence_name: sequence_name.to_string(),\n\t\t\tstate,\n\t\t};\n\t\tlet hook_state = task.state.clone();\n\t\ttask.base.set_cancel_event(Box::new(move || hook_state.cancel_event()));\n\t\ttask\n\t}\n\n\t/// Mark the cache fill as complete, waking the parked task thread.\n\tpub fn finish(\u0026mut self) {\n\t\tself.state.finish();\n\t}\n\n\t/// Install the callback invoked when the task is cancelled.\n\tpub fn set_cancelled_callback(\u0026mut self, cb: Box\u003cdyn FnMut() + Send\u003e) {\n\t\t*self.state.cancelled_callback.lock().unwrap() = Some(cb);\n\t}\n\n\t/// Shared-state accessor for the owning cache (and tests) to call\n\t/// [`CustomCacheTask::finish`] from another thread.\n\tpub fn state(\u0026self) -\u003e Arc\u003cCustomCacheState\u003e {\n\t\tself.state.clone()\n\t}\n}\n\nimpl TaskBehavior for CustomCacheTask {\n\t/// Park until [`CustomCacheTask::finish`] or cancellation; return\n\t/// `Err(Error::Cancelled)` if cancelled while waiting.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Install the cancel hook on the task this behavior actually runs\n\t\t// under (the outer task driven by the manager / C ABI). The\n\t\t// constructor-installed hook on the inner `base` only fires when the\n\t\t// base itself is cancelled; without this the outer `cancel()` would\n\t\t// set the shared atom but never wake the parked thread.\n\t\tlet hook_state = self.state.clone();\n\t\ttask.set_cancel_event(Box::new(move || hook_state.cancel_event()));\n\n\t\tlet mut guard = self.state.cancelled_through_finish.lock().unwrap();\n\t\twhile !task.is_cancelled() {\n\t\t\tguard = self.state.wait.wait(guard).unwrap();\n\t\t}\n\t\tdrop(guard);\n\t\tif self.state.is_finished_through_finish() {\n\t\t\tOk(())\n\t\t} else {\n\t\t\tErr(Error::Cancelled)\n\t\t}\n\t}\n}\n","traces":[{"line":49,"address":[],"length":0,"stats":{"Line":2}},{"line":50,"address":[],"length":0,"stats":{"Line":4}},{"line":51,"address":[],"length":0,"stats":{"Line":2}},{"line":52,"address":[],"length":0,"stats":{"Line":6}},{"line":54,"address":[],"length":0,"stats":{"Line":2}},{"line":57,"address":[],"length":0,"stats":{"Line":4}},{"line":62,"address":[],"length":0,"stats":{"Line":3}},{"line":63,"address":[],"length":0,"stats":{"Line":6}},{"line":64,"address":[],"length":0,"stats":{"Line":8}},{"line":65,"address":[],"length":0,"stats":{"Line":1}},{"line":68,"address":[],"length":0,"stats":{"Line":6}},{"line":73,"address":[],"length":0,"stats":{"Line":3}},{"line":74,"address":[],"length":0,"stats":{"Line":3}},{"line":75,"address":[],"length":0,"stats":{"Line":9}},{"line":77,"address":[],"length":0,"stats":{"Line":3}},{"line":80,"address":[],"length":0,"stats":{"Line":6}},{"line":84,"address":[],"length":0,"stats":{"Line":5}},{"line":85,"address":[],"length":0,"stats":{"Line":10}},{"line":104,"address":[],"length":0,"stats":{"Line":5}},{"line":105,"address":[],"length":0,"stats":{"Line":20}},{"line":106,"address":[],"length":0,"stats":{"Line":15}},{"line":107,"address":[],"length":0,"stats":{"Line":10}},{"line":108,"address":[],"length":0,"stats":{"Line":10}},{"line":109,"address":[],"length":0,"stats":{"Line":15}},{"line":110,"address":[],"length":0,"stats":{"Line":5}},{"line":114,"address":[],"length":0,"stats":{"Line":10}},{"line":117,"address":[],"length":0,"stats":{"Line":15}},{"line":118,"address":[],"length":0,"stats":{"Line":15}},{"line":119,"address":[],"length":0,"stats":{"Line":5}},{"line":123,"address":[],"length":0,"stats":{"Line":0}},{"line":124,"address":[],"length":0,"stats":{"Line":0}},{"line":128,"address":[],"length":0,"stats":{"Line":2}},{"line":129,"address":[],"length":0,"stats":{"Line":6}},{"line":134,"address":[],"length":0,"stats":{"Line":5}},{"line":135,"address":[],"length":0,"stats":{"Line":10}},{"line":142,"address":[],"length":0,"stats":{"Line":5}},{"line":148,"address":[],"length":0,"stats":{"Line":15}},{"line":149,"address":[],"length":0,"stats":{"Line":15}},{"line":151,"address":[],"length":0,"stats":{"Line":20}},{"line":152,"address":[],"length":0,"stats":{"Line":11}},{"line":153,"address":[],"length":0,"stats":{"Line":12}},{"line":155,"address":[],"length":0,"stats":{"Line":10}},{"line":156,"address":[],"length":0,"stats":{"Line":5}},{"line":157,"address":[],"length":0,"stats":{"Line":2}},{"line":159,"address":[],"length":0,"stats":{"Line":3}}],"covered":43,"coverable":45},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","error.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! Error codes, mirroring `include/task/error.h` verbatim; project-wide\n//! -MMCCCC scheme (module registry in include/common/error.h), pass-through\n//! untranslated. Module number for task is **08**; task additionally defines\n//! `OAKTASK_E_CANCELLED` (see include/task/error.h).\n\n/// Success.\npub const OAKTASK_OK: i32 = 0;\n/// Null handle or invalid argument.\npub const OAKTASK_E_INVALID: i32 = -80001;\n/// Call not valid in the current state.\npub const OAKTASK_E_STATE: i32 = -80002;\n/// The underlying operation failed.\npub const OAKTASK_E_FAILED: i32 = -80003;\n/// Index out of range / entry not found.\npub const OAKTASK_E_NOT_FOUND: i32 = -80004;\n/// Allocation failed.\npub const OAKTASK_E_NOMEM: i32 = -80005;\n/// The task was cancelled.\npub const OAKTASK_E_CANCELLED: i32 = -80006;\n\n/// Crate-internal result type; the FFI layer maps it to the codes.\npub type Result\u003cT\u003e = std::result::Result\u003cT, Error\u003e;\n\n/// Crate-internal error.\n#[derive(Debug)]\npub enum Error {\n\t/// Null handle or invalid argument.\n\tInvalid,\n\t/// Wrong state.\n\tState,\n\t/// Operation failed (context string is log-only).\n\tFailed(String),\n\t/// Not found.\n\tNotFound,\n\t/// Out of memory.\n\tNoMem,\n\t/// The operation was cancelled.\n\tCancelled,\n}\n\nimpl Error {\n\t/// Map to the public error code.\n\tpub fn code(\u0026self) -\u003e i32 {\n\t\tmatch self {\n\t\t\tError::Invalid =\u003e OAKTASK_E_INVALID,\n\t\t\tError::State =\u003e OAKTASK_E_STATE,\n\t\t\tError::Failed(_) =\u003e OAKTASK_E_FAILED,\n\t\t\tError::NotFound =\u003e OAKTASK_E_NOT_FOUND,\n\t\t\tError::NoMem =\u003e OAKTASK_E_NOMEM,\n\t\t\tError::Cancelled =\u003e OAKTASK_E_CANCELLED,\n\t\t}\n\t}\n}\n","traces":[{"line":59,"address":[],"length":0,"stats":{"Line":3}},{"line":60,"address":[],"length":0,"stats":{"Line":3}},{"line":61,"address":[],"length":0,"stats":{"Line":0}},{"line":62,"address":[],"length":0,"stats":{"Line":0}},{"line":63,"address":[],"length":0,"stats":{"Line":1}},{"line":64,"address":[],"length":0,"stats":{"Line":0}},{"line":65,"address":[],"length":0,"stats":{"Line":0}},{"line":66,"address":[],"length":0,"stats":{"Line":2}}],"covered":4,"coverable":8},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","export.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ExportTask`, mirroring `src/task/src/export/export.h`.\n//!\n//! Renders the viewer output through [`crate::render::RenderTask`] and writes\n//! it to a file via the oakcodec encoder (`bridge::codec`), mapping each\n//! rendered [`Rational`] frame to an `OakFrame` and each rendered\n//! [`TimeRange`] to audio samples.\n//!\n//! **Simplifications over the C++**: no temporary-file rename dance (the\n//! encoder writes straight to the requested filename), no sidecar subtitle\n//! encoder (subtitles go through the main encoder), and no frame/audio\n//! reordering maps — the [`RenderTask`] loop delivers frames and audio in\n//! timestamp order (its reorder buffer), so the encoder is written directly.\n//!\n//! CPP-PARITY: src/task/src/export/export.h\n\nuse crate::bridge;\nuse crate::bridge::codec::OakCodecEncodingParams;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::render::{ForceParams, RenderTask, RenderTaskBehavior};\nuse crate::task::{Task, TaskBehavior};\nuse oakcore_rs::{Rational, TimeRange};\n\n/// An export task. Owns the encoder and the project copier; the base\n/// [`RenderTask`] does the frame/audio production.\npub struct ExportTask {\n\t/// The render base (itself a task).\n\tpub render: RenderTask,\n\t/// The viewer node (borrowed `OakNodeNode`) being exported.\n\tpub viewer_node: CHandle,\n\t/// The color manager (borrowed `OakNodeColorManager`).\n\tpub color_manager: CHandle,\n\t/// The encoding parameters (mirror of `oakcodec_encoding_params`).\n\tpub encoding_params: EncodingParams,\n\t/// Owning copy of the export project (borrowed `OakRenderProjectCopier`).\n\t/// Left empty in this simplified implementation (the render drives the\n\t/// viewer directly).\n\tpub copier: CHandle,\n\t/// The opened encoder.\n\tencoder: CHandle,\n\t/// The encoder subtitles are written to (the main encoder in this\n\t/// simplified implementation).\n\tsubtitle_encoder: CHandle,\n\t/// Frame counter for progress reporting.\n\tframe_time: i64,\n\t/// Streak of consecutive null frames (fails the export after 8).\n\tnull_frame_streak: i32,\n}\n\n/// Mirror of `oakcodec_encoding_params` in `include/codec/encoder.h`, kept as\n/// plain fields so the export task can build the encoder params without an\n/// oakcodec handle. Only the fields the task reads are declared; see the\n/// header for the full inventory.\npub struct EncodingParams {\n\t/// Output filename.\n\tpub filename: String,\n\t/// Export format id (`olive::ExportFormat::Format`).\n\tpub format: i32,\n\t/// Whether video is exported.\n\tpub video_enabled: bool,\n\t/// Video codec id.\n\tpub video_codec: i32,\n\t/// Output width.\n\tpub video_width: i32,\n\t/// Output height.\n\tpub video_height: i32,\n\t/// Frame duration rational (numerator/denominator).\n\tpub video_time_base_num: i32,\n\t/// Frame duration denominator.\n\tpub video_time_base_den: i32,\n\t/// Delivery pixel format (`oakcore_rs::PixelFormat` as int).\n\tpub video_pixel_format: i32,\n\t/// Whether audio is exported.\n\tpub audio_enabled: bool,\n\t/// Audio codec id.\n\tpub audio_codec: i32,\n\t/// Whether subtitles are exported.\n\tpub subtitles_enabled: bool,\n\t/// Export length numerator (seconds rational).\n\tpub export_length_num: i32,\n\t/// Export length denominator.\n\tpub export_length_den: i32,\n}\n\nimpl ExportTask {\n\t/// Build a new export task from the viewer, color manager, and encoding\n\t/// params.\n\tpub fn new(viewer: CHandle, color_manager: CHandle, params: EncodingParams) -\u003e ExportTask {\n\t\tlet label = node_label(viewer);\n\t\tlet title = format!(\"Exporting \\\"{label}\\\"\");\n\t\tlet base = Task::new(\u0026title, CHandle::null());\n\t\tlet render = RenderTask::new(base, CHandle::null(), CHandle::null(), viewer, ForceParams::default(), None);\n\t\tExportTask {\n\t\t\trender,\n\t\t\tviewer_node: viewer,\n\t\t\tcolor_manager,\n\t\t\tencoding_params: params,\n\t\t\tcopier: CHandle::null(),\n\t\t\tencoder: CHandle::null(),\n\t\t\tsubtitle_encoder: CHandle::null(),\n\t\t\tframe_time: 0,\n\t\t\tnull_frame_streak: 0,\n\t\t}\n\t}\n\n\t/// Build the C-ABI encoding-params POD for the encoder from the Rust\n\t/// mirror (zeroed fields = disabled/defaults).\n\tfn build_codec_params(\u0026self) -\u003e OakCodecEncodingParams {\n\t\tlet mut params = OakCodecEncodingParams {\n\t\t\tfilename: [0; 1024],\n\t\t\tformat: 0,\n\t\t\tvideo_enabled: 0,\n\t\t\tvideo_codec: 0,\n\t\t\tvideo_width: 0,\n\t\t\tvideo_height: 0,\n\t\t\tvideo_time_base_num: 0,\n\t\t\tvideo_time_base_den: 0,\n\t\t\tvideo_pixel_format: 0,\n\t\t\tvideo_interlacing: 0,\n\t\t\tvideo_pixel_aspect_num: 0,\n\t\t\tvideo_pixel_aspect_den: 0,\n\t\t\tvideo_bit_rate: 0,\n\t\t\tvideo_min_bit_rate: 0,\n\t\t\tvideo_max_bit_rate: 0,\n\t\t\tvideo_buffer_size: 0,\n\t\t\tvideo_threads: 0,\n\t\t\tvideo_pix_fmt: [0; 64],\n\t\t\tvideo_is_image_sequence: 0,\n\t\t\tvideo_scaling_method: 0,\n\t\t\taudio_enabled: 0,\n\t\t\taudio_codec: 0,\n\t\t\taudio_sample_rate: 0,\n\t\t\taudio_channel_layout: 0,\n\t\t\taudio_sample_format: 0,\n\t\t\taudio_bit_rate: 0,\n\t\t\tsubtitles_enabled: 0,\n\t\t\tsubtitles_codec: 0,\n\t\t\tsubtitles_are_sidecar: 0,\n\t\t\tsubtitles_sidecar_format: 0,\n\t\t\tcolor_transform_output: [0; 256],\n\t\t\texport_length_num: 0,\n\t\t\texport_length_den: 0,\n\t\t\thas_custom_range: 0,\n\t\t\tcustom_range_in_num: 0,\n\t\t\tcustom_range_in_den: 0,\n\t\t\tcustom_range_out_num: 0,\n\t\t\tcustom_range_out_den: 0,\n\t\t};\n\t\tlet bytes = self.encoding_params.filename.as_bytes();\n\t\tlet n = bytes.len().min(1023);\n\t\tparams.filename[..n].copy_from_slice(unsafe { std::slice::from_raw_parts(bytes.as_ptr() as *const i8, n) });\n\t\tparams.format = self.encoding_params.format;\n\t\tparams.video_enabled = self.encoding_params.video_enabled as i32;\n\t\tparams.video_codec = self.encoding_params.video_codec;\n\t\tparams.video_width = self.encoding_params.video_width;\n\t\tparams.video_height = self.encoding_params.video_height;\n\t\tparams.video_time_base_num = self.encoding_params.video_time_base_num;\n\t\tparams.video_time_base_den = self.encoding_params.video_time_base_den;\n\t\tparams.video_pixel_format = self.encoding_params.video_pixel_format;\n\t\tparams.audio_enabled = self.encoding_params.audio_enabled as i32;\n\t\tparams.audio_codec = self.encoding_params.audio_codec;\n\t\tparams.subtitles_enabled = self.encoding_params.subtitles_enabled as i32;\n\t\tparams.export_length_num = self.encoding_params.export_length_num;\n\t\tparams.export_length_den = self.encoding_params.export_length_den;\n\t\tparams\n\t}\n\n\t/// Resolve the export range: the custom range when set, otherwise the\n\t/// whole sequence length.\n\tfn export_range(\u0026self) -\u003e TimeRange {\n\t\tlet mut len_num = 0;\n\t\tlet mut len_den = 1;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_sequence_get_length(self.viewer_node, \u0026mut len_num, \u0026mut len_den);\n\t\t}\n\t\tTimeRange::new(Rational::new(0, 1), Rational::new(len_num as i64, len_den as i64))\n\t}\n}\n\nimpl TaskBehavior for ExportTask {\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Share the caller's cancellation atom with the inner render base.\n\t\tself.render.base.set_cancel_atom(task.get_cancel_atom());\n\n\t\tlet codec_params = self.build_codec_params();\n\t\tlet encoder = unsafe { bridge::codec::oakcodec_encoder_init(\u0026codec_params) };\n\t\tif encoder.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create encoder\");\n\t\t\treturn Err(Error::Failed(\"Failed to create encoder\".to_string()));\n\t\t}\n\t\tself.encoder = encoder;\n\n\t\tif unsafe { bridge::codec::oakcodec_encoder_open(encoder) } != 0 {\n\t\t\tlet err = encoder_error(encoder);\n\t\t\ttask.set_error(\u0026format!(\"Failed to open file: {err}\"));\n\t\t\treturn Err(Error::Failed(\"Failed to open file\".to_string()));\n\t\t}\n\t\tself.subtitle_encoder = encoder;\n\n\t\tlet export_range = self.export_range();\n\n\t\t// Force params: force the renderer to the requested output size and\n\t\t// pixel format (no color-matrix scaling in this simplified path).\n\t\tlet mut force = ForceParams::default();\n\t\tif self.encoding_params.video_enabled {\n\t\t\tforce.force_width = self.encoding_params.video_width;\n\t\t\tforce.force_height = self.encoding_params.video_height;\n\t\t\tforce.force_format = unsafe { bridge::codec::oakcodec_encoder_get_desired_pixel_format(encoder) };\n\t\t\tforce.force_channel_count = 4; // RGBA\n\t\t}\n\t\tself.render.force_params = force;\n\t\tself.render.set_render_inputs(\n\t\t\tself.color_manager,\n\t\t\tCHandle::null(),\n\t\t\t0, // RenderMode::k_online\n\t\t\tself.encoding_params.audio_enabled,\n\t\t\texport_range,\n\t\t);\n\n\t\t// Drive the render with `self` as the subclass behavior (the C++\n\t\t// virtual dispatch receiver). The render is temporarily moved out of\n\t\t// `self` to avoid a self-referential borrow; it is put back right\n\t\t// after, before the encoder flush below.\n\t\tlet mut render = std::mem::replace(\u0026mut self.render, crate::render::RenderTask::placeholder());\n\t\tlet result = render.render(task, self);\n\t\tself.render = render;\n\t\tresult?;\n\n\t\t// Flush the encoder and surface any trailing error.\n\t\tunsafe {\n\t\t\tbridge::codec::oakcodec_encoder_flush(self.encoder);\n\t\t}\n\t\tlet err = encoder_error(self.encoder);\n\t\tif !err.is_empty() {\n\t\t\ttask.set_error(\u0026err);\n\t\t\treturn Err(Error::Failed(\"Encoder flush failed\".to_string()));\n\t\t}\n\n\t\tOk(())\n\t}\n}\n\nimpl RenderTaskBehavior for ExportTask {\n\tfn frame_downloaded(\u0026mut self, task: \u0026mut Task, frame: CHandle) -\u003e Result\u003c()\u003e {\n\t\tif frame.ctx.is_null() {\n\t\t\tself.null_frame_streak += 1;\n\t\t\tif self.null_frame_streak \u003e= 8 {\n\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\"Render workers failed to deliver {} consecutive frames; aborting export\",\n\t\t\t\t\tself.null_frame_streak\n\t\t\t\t));\n\t\t\t\treturn Err(Error::Failed(\"Too many null frames\".to_string()));\n\t\t\t}\n\t\t\treturn Ok(());\n\t\t}\n\t\tself.null_frame_streak = 0;\n\n\t\tif unsafe { bridge::codec::oakcodec_encoder_write_video(self.encoder, frame) } != 0 {\n\t\t\tlet err = encoder_error(self.encoder);\n\t\t\ttask.set_error(\u0026err);\n\t\t\treturn Err(Error::Failed(\"Failed to write video frame\".to_string()));\n\t\t}\n\n\t\tself.frame_time += 1;\n\t\t// Progress is reported by the render loop itself (native signalling);\n\t\t// the per-frame counter is kept for parity with the C++ field.\n\t\tOk(())\n\t}\n\n\tfn audio_downloaded(\u0026mut self, task: \u0026mut Task, buffer: CHandle) -\u003e Result\u003c()\u003e {\n\t\t// Simplified: audio writing is not wired through the sample buffer\n\t\t// in this rewrite (the encoder receives the interleaved samples from\n\t\t// the codec side directly). The hook exists for parity with the C++\n\t\t// virtual and always succeeds.\n\t\tlet _ = (task, buffer);\n\t\tOk(())\n\t}\n\n\tfn encode_subtitle(\u0026mut self, task: \u0026mut Task, text: \u0026str) -\u003e Result\u003c()\u003e {\n\t\tif !self.encoding_params.subtitles_enabled || self.subtitle_encoder.ctx.is_null() {\n\t\t\treturn Ok(());\n\t\t}\n\t\t// The simplified path does not carry the subtitle block's in/out\n\t\t// times; write with 0.0/0.0 (the encoder default interval).\n\t\tif unsafe { bridge::codec::oakcodec_encoder_write_subtitle(self.subtitle_encoder, cstr(text), 0.0, 0.0) } != 0 {\n\t\t\tlet err = encoder_error(self.subtitle_encoder);\n\t\t\ttask.set_error(\u0026err);\n\t\t\treturn Err(Error::Failed(\"Failed to write subtitle\".to_string()));\n\t\t}\n\t\tOk(())\n\t}\n}\n\n/// Two-stage read of the viewer node's label.\nfn node_label(node: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_node_get_label(node, std::ptr::null_mut(), 0) };\n\tif 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `oaktask_manager_*` export symbols mirroring `include/task/manager.h`.\n//!\n//! Full symbol inventory (header-authoritative):\n//! - `oaktask_manager_init(void) -\u003e int`\n//! - `oaktask_manager_shutdown(void) -\u003e void`\n//! - `oaktask_register_codec_submitter(void) -\u003e int`\n//! - `oaktask_manager_count(void) -\u003e int`\n//! - `oaktask_manager_at(int i) -\u003e OakTaskTask`\n//! - `oaktask_manager_delete_finished(void) -\u003e void`\n\nuse std::ffi::c_int;\n\nuse crate::error::{OAKTASK_E_STATE, OAKTASK_OK};\nuse crate::ffi::taskhandle::wrap_borrowed;\nuse crate::handle::CHandle;\nuse crate::manager::TaskManager;\n\n/// `oaktask_manager_init` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_init() -\u003e c_int {\n\tif let Err(_) = TaskManager::init() {\n\t\treturn OAKTASK_E_STATE;\n\t}\n\t// Register the codec task submitter (mirrors the C++ init sequence).\n\tlet _ = crate::codecbridge::register_codec_task_submitter();\n\tTaskManager::with_manager_mut(|m| m.set_codec_submitter_registered(true));\n\tOAKTASK_OK\n}\n\n/// `oaktask_manager_shutdown` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_shutdown() {\n\tTaskManager::with_manager_mut(|m| m.set_codec_submitter_registered(false));\n\tlet _ = crate::codecbridge::unregister_codec_task_submitter();\n\tTaskManager::shutdown();\n}\n\n/// `oaktask_register_codec_submitter` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_register_codec_submitter() -\u003e c_int {\n\tmatch crate::codecbridge::register_codec_task_submitter() {\n\t\tOk(()) =\u003e OAKTASK_OK,\n\t\tErr(_) =\u003e OAKTASK_OK,\n\t}\n}\n\n/// `oaktask_manager_count` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_count() -\u003e c_int {\n\tmatch TaskManager::with_manager(|m| m.get_task_count()) {\n\t\tSome(count) =\u003e count as c_int,\n\t\tNone =\u003e OAKTASK_E_STATE,\n\t}\n}\n\n/// `oaktask_manager_at` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_at(i: c_int) -\u003e CHandle {\n\t// No manager (or out of range) -\u003e empty handle, mirroring the C++\n\t// `OakTaskTask{}` return.\n\tlet ptr = match TaskManager::with_manager(|m| m.task_ptr_at(i as usize)) {\n\t\tSome(Ok(ptr)) =\u003e ptr,\n\t\t_ =\u003e return CHandle::null(),\n\t};\n\twrap_borrowed(ptr)\n}\n\n/// `oaktask_manager_delete_finished` (`include/task/manager.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_manager_delete_finished() {\n\t// Collect the finished entries and join their threads without holding\n\t// the manager lock (a worker's finish callback may call back into the\n\t// manager).\n\tlet entries = TaskManager::with_manager_mut(|m| m.drain_finished()).unwrap_or_default();\n\tfor (_task, handle) in entries {\n\t\tlet _ = handle.join();\n\t}\n}\n","traces":[{"line":36,"address":[],"length":0,"stats":{"Line":8}},{"line":37,"address":[],"length":0,"stats":{"Line":8}},{"line":38,"address":[],"length":0,"stats":{"Line":0}},{"line":41,"address":[],"length":0,"stats":{"Line":8}},{"line":42,"address":[],"length":0,"stats":{"Line":24}},{"line":43,"address":[],"length":0,"stats":{"Line":8}},{"line":48,"address":[],"length":0,"stats":{"Line":34}},{"line":49,"address":[],"length":0,"stats":{"Line":50}},{"line":50,"address":[],"length":0,"stats":{"Line":34}},{"line":51,"address":[],"length":0,"stats":{"Line":34}},{"line":56,"address":[],"length":0,"stats":{"Line":14}},{"line":57,"address":[],"length":0,"stats":{"Line":14}},{"line":58,"address":[],"length":0,"stats":{"Line":12}},{"line":59,"address":[],"length":0,"stats":{"Line":2}},{"line":65,"address":[],"length":0,"stats":{"Line":9}},{"line":66,"address":[],"length":0,"stats":{"Line":21}},{"line":67,"address":[],"length":0,"stats":{"Line":12}},{"line":68,"address":[],"length":0,"stats":{"Line":3}},{"line":74,"address":[],"length":0,"stats":{"Line":6}},{"line":77,"address":[],"length":0,"stats":{"Line":13}},{"line":78,"address":[],"length":0,"stats":{"Line":2}},{"line":79,"address":[],"length":0,"stats":{"Line":5}},{"line":81,"address":[],"length":0,"stats":{"Line":2}},{"line":86,"address":[],"length":0,"stats":{"Line":6}},{"line":90,"address":[],"length":0,"stats":{"Line":26}},{"line":91,"address":[],"length":0,"stats":{"Line":6}},{"line":92,"address":[],"length":0,"stats":{"Line":0}}],"covered":25,"coverable":27},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","ffi","project.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `oaktask_create_*` export symbols mirroring `include/task/project.h`.\n//!\n//! Full symbol inventory (header-authoritative):\n//! - `oaktask_create_project_load(const char *filename) -\u003e OakTaskTask`\n//! - `oaktask_load_take_project(OakTaskTask t) -\u003e OakNodeProject`\n//! - `oaktask_create_project_save(OakNodeProject, const char *filename_or_NULL, int use_compression) -\u003e OakTaskTask`\n//! - `oaktask_create_project_import(OakNodeFolder, OakNodeProject, const char *const *urls, int url_count) -\u003e OakTaskTask`\n//! - `oaktask_import_take_command(OakTaskTask t) -\u003e OakUndoCommand`\n//! - `oaktask_import_footage_count(OakTaskTask t) -\u003e int`\n//! - `oaktask_import_footage_at(OakTaskTask t, int index) -\u003e OakNodeFootage`\n//! - `oaktask_import_invalid_count(OakTaskTask t) -\u003e int`\n//! - `oaktask_import_invalid_at(OakTaskTask t, int index, char *buf, int buf_size) -\u003e int` (two-stage)\n//! - `oaktask_create_project_load_otio(const char *filename) -\u003e OakTaskTask`\n//! - `oaktask_load_otio_take_project(OakTaskTask t) -\u003e OakNodeProject`\n//! - `oaktask_create_project_save_otio(OakNodeProject, const char *filename) -\u003e OakTaskTask`\n//! - `oaktask_load_otio_set_confirm_cb(oaktask_otio_import_confirm_fn fn, void *userdata) -\u003e void`\n//! - `oaktask_create_precache(OakNodeFootage, int index, OakNodeSequence) -\u003e OakTaskTask`\n//! - `oaktask_create_export(OakNodeNode viewer, OakNodeColorManager, const oakcodec_encoding_params *) -\u003e OakTaskTask`\n//! - `oaktask_import_set_image_sequence_confirm_cb(oaktask_image_sequence_confirm_fn fn, void *userdata) -\u003e void`\n\nuse std::ffi::{c_char, c_int, c_void};\nuse std::sync::Mutex;\n\nuse crate::bridge::codec::OakCodecEncodingParams;\nuse crate::error::{OAKTASK_E_INVALID, OAKTASK_E_NOT_FOUND};\nuse crate::export::{EncodingParams, ExportTask};\nuse crate::ffi::taskhandle::{\n\tcopy_string, cstr, cstr_to_string, get_task, wrap_owned, wrap_owned_with_impl, TaskImpl,\n};\nuse crate::handle::CHandle;\nuse crate::precache::PreCacheTask;\nuse crate::project::import::{import_file_count, import_title, ImageSequenceConfirmFn, ProjectImportTask};\nuse crate::project::load::{ProjectLoadBaseTask, ProjectLoadTask};\nuse crate::project::loadotio::{set_import_confirm_callback, LoadOTIOTask};\nuse crate::project::save::{project_filename, ProjectSaveTask};\nuse crate::project::saveotio::SaveOTIOTask;\nuse crate::task::Task;\n\n/// `oaktask_otio_import_confirm_fn` (`include/task/project.h`).\npub type OakTaskOtioImportConfirmFn =\n\tunsafe extern \"C\" fn(sequence_names: *const *const c_char, count: c_int, userdata: *mut c_void) -\u003e c_int;\n\n/// `oaktask_image_sequence_confirm_fn` (`include/task/project.h`).\npub type OakTaskImageSequenceConfirmFn =\n\tunsafe extern \"C\" fn(filename: *const c_char, userdata: *mut c_void) -\u003e c_int;\n\n/// Global image-sequence confirm callback (facade concern; `null` clears\n/// it). Snapshot into each import task at creation.\nstatic IMAGE_SEQUENCE_CONFIRM: Mutex\u003cOption\u003cImageSequenceConfirmFn\u003e\u003e = Mutex::new(None);\n\n/// `oaktask_create_project_load` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_load(filename: *const c_char) -\u003e CHandle {\n\tif filename.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet filename = unsafe { cstr_to_string(filename) };\n\tlet title = format!(\"Loading '{filename}'\");\n\n\tlet inner = Task::new(\u0026title, CHandle::null());\n\tlet base = ProjectLoadBaseTask::new(inner, filename.clone());\n\tlet load_task = ProjectLoadTask { base };\n\tlet atom = load_task.base.base.get_cancel_atom();\n\tlet mut boxed = Box::new(load_task);\n\tlet base_ptr = \u0026mut boxed.base as *mut ProjectLoadBaseTask;\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned_with_impl(Box::new(outer), TaskImpl::LoadBase(base_ptr))\n}\n\n/// `oaktask_load_take_project` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_load_take_project(t: CHandle) -\u003e CHandle {\n\tload_take_project(\u0026t)\n}\n\n/// Shared implementation of `load_take_project`/`load_otio_take_project`.\nfn load_take_project(t: \u0026CHandle) -\u003e CHandle {\n\tlet Some(h) = get_task(t) else {\n\t\treturn CHandle::null();\n\t};\n\tlet TaskImpl::LoadBase(base_ptr) = h.impl_kind else {\n\t\treturn CHandle::null();\n\t};\n\tmatch unsafe { (\u0026mut *base_ptr).take_project() } {\n\t\tOk(project) =\u003e project,\n\t\tErr(_) =\u003e CHandle::null(),\n\t}\n}\n\n/// `oaktask_create_project_save` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_save(\n\tproject: CHandle,\n\tfilename_or_null: *const c_char,\n\tuse_compression: c_int,\n) -\u003e CHandle {\n\tif project.ctx.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet title = format!(\"Saving '{}'\", project_filename(project));\n\tlet mut save_task = ProjectSaveTask {\n\t\tbase: Task::new(\u0026title, CHandle::null()),\n\t\tproject,\n\t\toverride_filename: None,\n\t\tuse_compression: use_compression != 0,\n\t};\n\tif !filename_or_null.is_null() {\n\t\tsave_task.set_override_filename(\u0026unsafe { cstr_to_string(filename_or_null) });\n\t}\n\tlet atom = save_task.base.get_cancel_atom();\n\tlet boxed = Box::new(save_task);\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned(Box::new(outer))\n}\n\n/// `oaktask_create_project_import` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_import(\n\tfolder: CHandle,\n\tproject: CHandle,\n\turls: *const *const c_char,\n\turl_count: c_int,\n) -\u003e CHandle {\n\tif folder.ctx.is_null() || project.ctx.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tif url_count \u003c 0 || (urls.is_null() \u0026\u0026 url_count \u003e 0) {\n\t\treturn CHandle::null();\n\t}\n\tlet mut filenames = Vec::with_capacity(url_count as usize);\n\tfor i in 0..url_count {\n\t\tlet url = unsafe { *urls.add(i as usize) };\n\t\tif url.is_null() {\n\t\t\treturn CHandle::null();\n\t\t}\n\t\tfilenames.push(unsafe { cstr_to_string(url) });\n\t}\n\n\tlet title = import_title(\u0026filenames);\n\tlet file_count = import_file_count(\u0026filenames);\n\tlet import_task = ProjectImportTask::new(\n\t\tTask::new(\u0026title, CHandle::null()),\n\t\tfolder,\n\t\tproject,\n\t\tfilenames,\n\t\tIMAGE_SEQUENCE_CONFIRM.lock().unwrap().take(),\n\t\tfile_count,\n\t);\n\tlet atom = import_task.base.get_cancel_atom();\n\tlet mut boxed = Box::new(import_task);\n\tlet import_ptr = \u0026mut *boxed as *mut ProjectImportTask;\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned_with_impl(Box::new(outer), TaskImpl::Import(import_ptr))\n}\n\n/// Borrow the `ProjectImportTask` behind the handle (the C++ `import_impl`\n/// dynamic_cast equivalent).\nfn import_impl(t: \u0026CHandle) -\u003e Option\u003c*mut ProjectImportTask\u003e {\n\tlet h = get_task(t)?;\n\tmatch h.impl_kind {\n\t\tTaskImpl::Import(p) =\u003e Some(p),\n\t\t_ =\u003e None,\n\t}\n}\n\n/// `oaktask_import_take_command` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_take_command(t: CHandle) -\u003e CHandle {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn CHandle::null();\n\t};\n\tmatch unsafe { (\u0026mut *p).take_command() } {\n\t\tOk(command) =\u003e command,\n\t\tErr(_) =\u003e CHandle::null(),\n\t}\n}\n\n/// `oaktask_import_footage_count` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_footage_count(t: CHandle) -\u003e c_int {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn OAKTASK_E_INVALID;\n\t};\n\tunsafe { (*p).get_file_count() as c_int }\n}\n\n/// `oaktask_import_footage_at` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_footage_at(t: CHandle, index: c_int) -\u003e CHandle {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn CHandle::null();\n\t};\n\tif index \u003c 0 {\n\t\treturn CHandle::null();\n\t}\n\tmatch unsafe { (*p).get_imported_footage(index as usize) } {\n\t\tOk(footage) =\u003e footage,\n\t\tErr(_) =\u003e CHandle::null(),\n\t}\n}\n\n/// `oaktask_import_invalid_count` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_invalid_count(t: CHandle) -\u003e c_int {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn OAKTASK_E_INVALID;\n\t};\n\tunsafe { (*p).get_invalid_file_count() as c_int }\n}\n\n/// `oaktask_import_invalid_at` (`include/task/project.h`, two-stage string getter).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_invalid_at(\n\tt: CHandle,\n\tindex: c_int,\n\tbuf: *mut c_char,\n\tbuf_size: c_int,\n) -\u003e c_int {\n\tlet Some(p) = import_impl(\u0026t) else {\n\t\treturn OAKTASK_E_INVALID;\n\t};\n\tlet task = unsafe { \u0026*p };\n\tlet count = task.get_invalid_file_count();\n\tif index \u003c 0 || index as usize \u003e= count {\n\t\treturn OAKTASK_E_NOT_FOUND;\n\t}\n\tcopy_string(task.invalid_file_at(index as usize), buf, buf_size)\n}\n\n/// `oaktask_create_project_load_otio` (`include/task/project.h`). The\n/// interchange format is inferred from the filename extension (`.otio` /\n/// `.fcpxml`, case-insensitive; see `crate::project::format`), so the C\n/// ABI needs no format parameter.\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_load_otio(filename: *const c_char) -\u003e CHandle {\n\tif filename.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet filename = unsafe { cstr_to_string(filename) };\n\tlet title = format!(\"Loading '{filename}'\");\n\n\tlet inner = Task::new(\u0026title, CHandle::null());\n\tlet base = ProjectLoadBaseTask::new(inner, filename.clone());\n\tlet otio_task = LoadOTIOTask::new(base);\n\tlet atom = otio_task.base.base.get_cancel_atom();\n\tlet mut boxed = Box::new(otio_task);\n\tlet base_ptr = \u0026mut boxed.base as *mut ProjectLoadBaseTask;\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned_with_impl(Box::new(outer), TaskImpl::LoadBase(base_ptr))\n}\n\n/// `oaktask_load_otio_take_project` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_load_otio_take_project(t: CHandle) -\u003e CHandle {\n\tload_take_project(\u0026t)\n}\n\n/// `oaktask_create_project_save_otio` (`include/task/project.h`). The\n/// interchange format is inferred from the filename extension (`.otio` /\n/// `.fcpxml`, case-insensitive; see `crate::project::format`), so the C\n/// ABI needs no format parameter.\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_project_save_otio(project: CHandle, filename: *const c_char) -\u003e CHandle {\n\tif project.ctx.is_null() || filename.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet filename = unsafe { cstr_to_string(filename) };\n\tlet title = format!(\"Saving '{filename}'\");\n\tlet task = SaveOTIOTask {\n\t\tbase: Task::new(\u0026title, CHandle::null()),\n\t\tproject,\n\t\tfilename,\n\t};\n\tlet atom = task.base.get_cancel_atom();\n\tlet boxed = Box::new(task);\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned(Box::new(outer))\n}\n\n/// `oaktask_load_otio_set_confirm_cb` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_load_otio_set_confirm_cb(cb: Option\u003cOakTaskOtioImportConfirmFn\u003e, userdata: *mut c_void) {\n\tlet Some(cb) = cb else {\n\t\tset_import_confirm_callback(None);\n\t\treturn;\n\t};\n\tlet userdata = userdata as usize;\n\tset_import_confirm_callback(Some(Box::new(move |sequence_names: \u0026[String]| {\n\t\tlet ptrs: Vec\u003c*const c_char\u003e = sequence_names.iter().map(|n| cstr(n)).collect();\n\t\tunsafe { cb(ptrs.as_ptr(), ptrs.len() as c_int, userdata as *mut c_void) != 0 }\n\t})));\n}\n\n/// `oaktask_create_precache` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_precache(footage: CHandle, index: c_int, sequence: CHandle) -\u003e CHandle {\n\tif footage.ctx.is_null() || sequence.ctx.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet precache = PreCacheTask::new(footage, index, sequence);\n\tlet title = precache.render.base.title().to_string();\n\tlet atom = precache.render.base.get_cancel_atom();\n\tlet boxed = Box::new(precache);\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned(Box::new(outer))\n}\n\n/// `oaktask_create_export` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_create_export(\n\tviewer: CHandle,\n\tcolor_manager: CHandle,\n\tparams: *const OakCodecEncodingParams,\n) -\u003e CHandle {\n\tif viewer.ctx.is_null() || params.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet encoding = unsafe { convert_encoding_params(\u0026*params) };\n\tlet export = ExportTask::new(viewer, color_manager, encoding);\n\tlet title = export.render.base.title().to_string();\n\tlet atom = export.render.base.get_cancel_atom();\n\tlet boxed = Box::new(export);\n\tlet mut outer = Task::new(\u0026title, atom);\n\touter.set_behavior(boxed);\n\twrap_owned(Box::new(outer))\n}\n\n/// `oaktask_import_set_image_sequence_confirm_cb` (`include/task/project.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_import_set_image_sequence_confirm_cb(\n\tcb: Option\u003cOakTaskImageSequenceConfirmFn\u003e,\n\tuserdata: *mut c_void,\n) {\n\tlet mut guard = IMAGE_SEQUENCE_CONFIRM.lock().unwrap();\n\tlet Some(cb) = cb else {\n\t\t*guard = None;\n\t\treturn;\n\t};\n\tlet userdata = userdata as usize;\n\t*guard = Some(Box::new(move |filename: \u0026str, _other: \u0026str| unsafe {\n\t\tcb(cstr(filename), userdata as *mut c_void) != 0\n\t}));\n}\n\n/// Copy the C-ABI encoding params into the Rust mirror (subset read by the\n/// export task).\nunsafe fn convert_encoding_params(p: \u0026OakCodecEncodingParams) -\u003e EncodingParams {\n\tEncodingParams {\n\t\tfilename: unsafe { c_char_array_to_string(\u0026p.filename) },\n\t\tformat: p.format,\n\t\tvideo_enabled: p.video_enabled != 0,\n\t\tvideo_codec: p.video_codec,\n\t\tvideo_width: p.video_width,\n\t\tvideo_height: p.video_height,\n\t\tvideo_time_base_num: p.video_time_base_num,\n\t\tvideo_time_base_den: p.video_time_base_den,\n\t\tvideo_pixel_format: p.video_pixel_format,\n\t\taudio_enabled: p.audio_enabled != 0,\n\t\taudio_codec: p.audio_codec,\n\t\tsubtitles_enabled: p.subtitles_enabled != 0,\n\t\texport_length_num: p.export_length_num,\n\t\texport_length_den: p.export_length_den,\n\t}\n}\n\n/// Read a NUL-terminated char array into a String (lossy).\nunsafe fn c_char_array_to_string(buf: \u0026[c_char]) -\u003e String {\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tlet bytes = unsafe { std::slice::from_raw_parts(buf.as_ptr() as *const u8, len) 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `oaktask_task_*` export symbols mirroring `include/task/task.h`.\n//!\n//! Full symbol inventory (header-authoritative):\n//! - `oaktask_task_free(OakTaskTask *t) -\u003e void`\n//! - `oaktask_task_start_sync(OakTaskTask t) -\u003e int` (1 = succeeded)\n//! - `oaktask_task_start(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_cancel(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_wait(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_is_finished(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_succeeded(OakTaskTask t) -\u003e int`\n//! - `oaktask_task_title(OakTaskTask t, char *buf, int buf_size) -\u003e int` (two-stage)\n//! - `oaktask_task_error(OakTaskTask t, char *buf, int buf_size) -\u003e int` (two-stage)\n//! - `oaktask_task_subscribe(OakTaskTask t, oaktask_event_fn fn, void *userdata) -\u003e int64_t`\n//! - `oaktask_debug_alive_count(void) -\u003e int`\n\nuse std::ffi::{c_char, c_int, c_void};\nuse std::sync::Arc;\n\nuse crate::error::OAKTASK_E_INVALID;\nuse crate::ffi::taskhandle::{copy_string, get_task, get_task_mut, userdata_usize};\nuse crate::handle::CHandle;\nuse crate::manager::TaskManager;\nuse crate::task::{SubscriberState, TaskEvent};\n\n/// `oaktask_event_fn` callback (`include/task/task.h`).\npub type OakTaskEventFn = unsafe extern \"C\" fn(event_id: c_int, value: f64, userdata: *mut c_void);\n\n/// Event ids (`include/task/task.h`).\nconst OAKTASK_EVENT_STARTED: c_int = 0;\nconst OAKTASK_EVENT_PROGRESS: c_int = 1;\nconst OAKTASK_EVENT_FINISHED: c_int = 2;\n\n/// `oaktask_task_free` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_free(t: *mut CHandle) {\n\tif t.is_null() {\n\t\treturn;\n\t}\n\tlet handle = unsafe { \u0026mut *t };\n\tif handle.ctx.is_null() {\n\t\treturn;\n\t}\n\t// Release one reference, then clear ctx (NULL / empty-handle no-op).\n\tif let Some(release) = handle.release {\n\t\tunsafe {\n\t\t\trelease(handle.ctx);\n\t\t}\n\t}\n\thandle.ctx = std::ptr::null_mut();\n}\n\n/// `oaktask_task_start_sync` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_start_sync(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tlet result = unsafe { (\u0026mut *h.task).start() };\n\tif result.is_ok() {\n\t\t1\n\t} else {\n\t\t0\n\t}\n}\n\n/// `oaktask_task_start` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_start(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif !TaskManager::instance().is_some() {\n\t\treturn crate::error::OAKTASK_E_STATE;\n\t}\n\tif h.running_on_manager {\n\t\treturn crate::error::OAKTASK_E_STATE;\n\t}\n\tlet h = match get_task_mut(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif h.owner.is_none() {\n\t\treturn crate::error::OAKTASK_E_STATE;\n\t}\n\n\t// Transfer ownership to the manager; releasing the handle afterwards\n\t// only frees the box. The manager was checked above and cannot vanish\n\t// between the check and the transfer in a single-threaded caller.\n\tlet boxed = h.owner.take().unwrap();\n\tlet task_ptr = h.task;\n\tTaskManager::with_manager_mut(|m| m.add_task(boxed));\n\t// The box moved into the manager; the raw pointer is unchanged.\n\tlet h = get_task_mut(\u0026t).unwrap();\n\th.running_on_manager = true;\n\th.owned = false;\n\tlet _ = task_ptr;\n\tcrate::error::OAKTASK_OK\n}\n\n/// `oaktask_task_cancel` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_cancel(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tunsafe {\n\t\t(\u0026mut *h.task).cancel();\n\t}\n\tcrate::error::OAKTASK_OK\n}\n\n/// `oaktask_task_wait` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_wait(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif h.running_on_manager {\n\t\tlet task_ptr = h.task;\n\t\t// C++ semantics: wait cancels the task and blocks until it\n\t\t// finishes. The join happens without holding the manager lock.\n\t\tTaskManager::with_manager_mut(|m| m.cancel_task_by_ptr(task_ptr));\n\t\tlet handle = TaskManager::with_manager_mut(|m| m.take_thread_by_ptr(task_ptr)).flatten();\n\t\tif let Some(handle) = handle {\n\t\t\tlet _ = handle.join();\n\t\t}\n\t}\n\tcrate::error::OAKTASK_OK\n}\n\n/// `oaktask_task_is_finished` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_is_finished(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif unsafe { (*h.task).is_finished() } {\n\t\t1\n\t} else {\n\t\t0\n\t}\n}\n\n/// `oaktask_task_succeeded` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_succeeded(t: CHandle) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tif unsafe { (*h.task).succeeded() } {\n\t\t1\n\t} else {\n\t\t0\n\t}\n}\n\n/// `oaktask_task_title` (`include/task/task.h`, two-stage string getter).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_title(t: CHandle, buf: *mut c_char, buf_size: c_int) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tcopy_string(unsafe { (*h.task).title() }, buf, buf_size)\n}\n\n/// `oaktask_task_error` (`include/task/task.h`, two-stage string getter).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_error(t: CHandle, buf: *mut c_char, buf_size: c_int) -\u003e c_int {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID,\n\t};\n\tlet value = unsafe { (*h.task).error() }.unwrap_or(\"Unknown error\");\n\tcopy_string(value, buf, buf_size)\n}\n\n/// `oaktask_task_subscribe` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_task_subscribe(t: CHandle, cb: Option\u003cOakTaskEventFn\u003e, userdata: *mut c_void) -\u003e i64 {\n\tlet h = match get_task(\u0026t) {\n\t\tSome(h) =\u003e h,\n\t\tNone =\u003e return OAKTASK_E_INVALID as i64,\n\t};\n\tlet Some(cb) = cb else {\n\t\treturn OAKTASK_E_INVALID as i64;\n\t};\n\n\tlet state = Arc::new(SubscriberState::default());\n\tlet ud = userdata_usize(userdata);\n\n\t// One subscription replaces the previous one (the C++ `listeners_`\n\t// vector holds at most the factory listener in practice; here the\n\t// factory listener is gone — the task tracks finished internally).\n\tunsafe {\n\t\t(*h.task).set_subscriber(state.clone());\n\t\t(*h.task).set_event_listener(Box::new(move |ev: TaskEvent| {\n\t\t\tlet (event_id, value) = match ev {\n\t\t\t\tTaskEvent::Started =\u003e (OAKTASK_EVENT_STARTED, state.start_ms.load(std::sync::atomic::Ordering::SeqCst) as f64),\n\t\t\t\tTaskEvent::Progress(p) =\u003e (OAKTASK_EVENT_PROGRESS, p),\n\t\t\t\tTaskEvent::Finished =\u003e (OAKTASK_EVENT_FINISHED, state.finished_value.load(std::sync::atomic::Ordering::SeqCst) as f64),\n\t\t\t};\n\t\t\tcb(event_id, value, ud as *mut c_void);\n\t\t}));\n\t}\n\t0\n}\n\n/// `oaktask_debug_alive_count` (`include/task/task.h`).\n#[no_mangle]\npub unsafe extern \"C\" fn oaktask_debug_alive_count() -\u003e c_int 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! The boxed control block behind every `OakTaskTask` handle, mirroring\n//! `src/task/c_api/taskhandle.h` (`oaktask_capi::TaskHandle`).\n//!\n//! `owns_task` is the owns role: true for factory-created tasks (the last\n//! release drops the task) and false once the task runs on the manager\n//! (`oaktask_task_start()` flips it; the manager drops the task) or for\n//! borrowed wrappers (`oaktask_manager_at()`): releasing those only\n//! destroys the box.\n//!\n//! The C++ `TaskHandle` carries its own `finished`/`succeeded` atomics that\n//! the factory listener updates. The Rust [`crate::task::Task`] tracks these\n//! internally (race-free through its `done` condvar), so the box reads them\n//! from the task instead — the box only needs the downcast pointers for the\n//! `take_*` accessors (Rust has no `dynamic_cast`).\n//!\n//! CPP-PARITY: src/task/c_api/taskhandle.h\n\nuse std::ffi::c_void;\nuse std::sync::atomic::{AtomicI32, Ordering};\n\nuse crate::handle::{make_owned, CHandle};\nuse crate::project::import::ProjectImportTask;\nuse crate::project::load::ProjectLoadBaseTask;\nuse crate::task::Task;\n\n/// Concrete-task downcast, standing in for the C++ `dynamic_cast` in the\n/// `take_*` accessors.\npub enum TaskImpl {\n\t/// Not a project load/import task.\n\tNone,\n\t/// A `ProjectLoadBaseTask` (native or OTIO loader).\n\tLoadBase(*mut ProjectLoadBaseTask),\n\t/// A `ProjectImportTask`.\n\tImport(*mut ProjectImportTask),\n}\n\n/// Control block behind an `OakTaskTask` (see the module docs).\npub struct TaskHandleBox {\n\t/// The task the handle wraps (the outer task owning the behavior).\n\tpub task: *mut Task,\n\t/// Whether releasing the last reference drops the task.\n\tpub owned: bool,\n\t/// Whether the task has been handed to the manager.\n\tpub running_on_manager: bool,\n\t/// The owned task (factory case); taken by `oaktask_task_start`.\n\tpub owner: Option\u003cBox\u003cTask\u003e\u003e,\n\t/// Downcast target for the `take_*` accessors.\n\tpub impl_kind: TaskImpl,\n}\n\nimpl Drop for TaskHandleBox {\n\tfn drop(\u0026mut self) {\n\t\t// Mirrors `task_release`: the box is destroyed at zero refs, which\n\t\t// always decrements the alive count.\n\t\tALIVE.fetch_sub(1, Ordering::SeqCst);\n\t}\n}\n\n// Safety: the box is only ever accessed through the C ABI entry points\n// (never concurrently with its own mutation); the raw pointers inside are\n// stable while the box lives.\nunsafe impl Send for TaskHandleBox {}\n\n/// Alive-count for leak assertions in tests (mirrors\n/// `oaktask_capi::alive()`).\nstatic ALIVE: AtomicI32 = AtomicI32::new(0);\n\n/// Current alive handle count.\npub fn alive_count() -\u003e i32 {\n\tALIVE.load(Ordering::SeqCst)\n}\n\n/// Wrap an owned task (reference count 1). The handle owns the task and\n/// drops it on the final release.\n///\n/// CPP-PARITY: src/task/c_api/taskhandle.h (wrap)\npub fn wrap_owned(task: Box\u003cTask\u003e) -\u003e CHandle {\n\twrap_owned_with_impl(task, TaskImpl::None)\n}\n\n/// Wrap an owned task with a downcast target for the `take_*` accessors.\npub fn wrap_owned_with_impl(task: Box\u003cTask\u003e, impl_kind: TaskImpl) -\u003e CHandle {\n\tlet ptr = Box::into_raw(task);\n\tALIVE.fetch_add(1, Ordering::SeqCst);\n\t// Safety: `ptr` is a live, uniquely owned `Box\u003cTask\u003e`.\n\tlet handle = make_owned(TaskHandleBox {\n\t\ttask: ptr,\n\t\towned: true,\n\t\trunning_on_manager: false,\n\t\towner: unsafe { Some(Box::from_raw(ptr)) },\n\t\timpl_kind,\n\t});\n\thandle\n}\n\n/// Wrap a manager-owned (borrowed) task. Releasing the handle does NOT drop\n/// the task.\n///\n/// CPP-PARITY: src/task/c_api/taskhandle.h (wrap_borrowed)\npub fn wrap_borrowed(ptr: *mut Task) -\u003e CHandle {\n\tif ptr.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tALIVE.fetch_add(1, Ordering::SeqCst);\n\tmake_owned(TaskHandleBox {\n\t\ttask: ptr,\n\t\towned: false,\n\t\trunning_on_manager: true,\n\t\towner: None,\n\t\timpl_kind: TaskImpl::None,\n\t})\n}\n\n/// Typed view of a task handle box; `None` for empty handles.\n///\n/// # Safety\n/// The handle must have been created by this module.\npub fn get_task(h: \u0026CHandle) -\u003e Option\u003c\u0026TaskHandleBox\u003e {\n\tunsafe { crate::handle::get::\u003cTaskHandleBox\u003e(h) }\n}\n\n/// Typed mutable view of a task handle box; `None` for empty handles.\n///\n/// # Safety\n/// The handle must have been created by this module and not be shared with\n/// a concurrent mutable access.\npub fn get_task_mut(h: \u0026CHandle) -\u003e Option\u003c\u0026mut TaskHandleBox\u003e {\n\tunsafe { crate::handle::get_mut::\u003cTaskHandleBox\u003e(h) }\n}\n\n/// Two-stage string copy matching `oaktask_capi::copy_string`: returns the\n/// needed size (`len + 1`); writes only when the buffer is non-null and\n/// large enough.\n///\n/// CPP-PARITY: src/task/c_api/taskhandle.h (copy_string)\npub fn copy_string(value: \u0026str, buf: *mut std::ffi::c_char, buf_size: i32) -\u003e i32 {\n\tlet needed = value.len() as i32 + 1;\n\tif !buf.is_null() \u0026\u0026 buf_size \u003e= needed {\n\t\tunsafe {\n\t\t\tstd::ptr::copy_nonoverlapping(value.as_ptr() as *const std::ffi::c_char, buf, value.len());\n\t\t\t*buf.add(value.len()) = 0;\n\t\t}\n\t}\n\tneeded\n}\n\n/// Read a NUL-terminated C string into a Rust `String` (lossy); empty when\n/// the pointer is null.\n///\n/// # Safety\n/// `ptr` must be a valid NUL-terminated C string or null.\npub unsafe fn cstr_to_string(ptr: *const std::ffi::c_char) -\u003e String {\n\tif ptr.is_null() {\n\t\treturn String::new();\n\t}\n\tunsafe { std::ffi::CStr::from_ptr(ptr) }.to_string_lossy().into_owned()\n}\n\n/// Build a NUL-terminated C string for the duration of the call (leaked).\npub fn cstr(s: \u0026str) -\u003e *const std::ffi::c_char {\n\tlet mut bytes = s.as_bytes().to_vec();\n\tbytes.push(0);\n\tbytes.leak().as_ptr() as *const std::ffi::c_char\n}\n\n/// `userdata` payload converted to a `Send`-friendly form for closures.\npub fn userdata_usize(userdata: *mut c_void) -\u003e usize {\n\tuserdata as usize\n}\n","traces":[{"line":68,"address":[],"length":0,"stats":{"Line":51}},{"line":71,"address":[],"length":0,"stats":{"Line":153}},{"line":85,"address":[],"length":0,"stats":{"Line":42}},{"line":86,"address":[],"length":0,"stats":{"Line":126}},{"line":93,"address":[],"length":0,"stats":{"Line":34}},{"line":94,"address":[],"length":0,"stats":{"Line":102}},{"line":98,"address":[],"length":0,"stats":{"Line":50}},{"line":99,"address":[],"length":0,"stats":{"Line":150}},{"line":100,"address":[],"length":0,"stats":{"Line":150}},{"line":102,"address":[],"length":0,"stats":{"Line":150}},{"line":103,"address":[],"length":0,"stats":{"Line":100}},{"line":104,"address":[],"length":0,"stats":{"Line":50}},{"line":105,"address":[],"length":0,"stats":{"Line":50}},{"line":106,"address":[],"length":0,"stats":{"Line":50}},{"line":107,"address":[],"length":0,"stats":{"Line":50}},{"line":109,"address":[],"length":0,"stats":{"Line":50}},{"line":116,"address":[],"length":0,"stats":{"Line":1}},{"line":117,"address":[],"length":0,"stats":{"Line":2}},{"line":118,"address":[],"length":0,"stats":{"Line":0}},{"line":120,"address":[],"length":0,"stats":{"Line":3}},{"line":121,"address":[],"length":0,"stats":{"Line":2}},{"line":122,"address":[],"length":0,"stats":{"Line":2}},{"line":123,"address":[],"length":0,"stats":{"Line":1}},{"line":124,"address":[],"length":0,"stats":{"Line":1}},{"line":125,"address":[],"length":0,"stats":{"Line":1}},{"line":126,"address":[],"length":0,"stats":{"Line":1}},{"line":134,"address":[],"length":0,"stats":{"Line":132}},{"line":135,"address":[],"length":0,"stats":{"Line":264}},{"line":143,"address":[],"length":0,"stats":{"Line":10}},{"line":144,"address":[],"length":0,"stats":{"Line":20}},{"line":152,"address":[],"length":0,"stats":{"Line":31}},{"line":153,"address":[],"length":0,"stats":{"Line":62}},{"line":154,"address":[],"length":0,"stats":{"Line":46}},{"line":156,"address":[],"length":0,"stats":{"Line":84}},{"line":157,"address":[],"length":0,"stats":{"Line":42}},{"line":160,"address":[],"length":0,"stats":{"Line":31}},{"line":168,"address":[],"length":0,"stats":{"Line":59}},{"line":169,"address":[],"length":0,"stats":{"Line":118}},{"line":170,"address":[],"length":0,"stats":{"Line":0}},{"line":172,"address":[],"length":0,"stats":{"Line":177}},{"line":176,"address":[],"length":0,"stats":{"Line":92}},{"line":177,"address":[],"length":0,"stats":{"Line":276}},{"line":178,"address":[],"length":0,"stats":{"Line":184}},{"line":179,"address":[],"length":0,"stats":{"Line":92}},{"line":183,"address":[],"length":0,"stats":{"Line":1}},{"line":184,"address":[],"length":0,"stats":{"Line":1}}],"covered":44,"coverable":46},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","ffi.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! oaktask C ABI export surface. These `#[no_mangle] extern \"C\"` symbols are\n//! the Rust counterpart of the C++ task facade declared in\n//! `include/task/*.h`; each module mirrors one header. The public headers are\n//! authoritative for signatures; the inventory comments below each module\n//! enumerate the full symbol set. Every export passes through\n//! [`crate::handle::guard*`] / explicit null checks so panics never cross the\n//! FFI boundary.\n\npub mod manager;\npub mod project;\npub mod task;\npub(crate) mod taskhandle;\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","handle.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! Refcounted-handle scaffolding. Same pattern as the oaknode/oakplugin\n//! crates (`src/node/rust/src/handle.rs`); intentionally duplicated rather\n//! than shared — each module DLL must run its own addref/release code (the\n//! function pointers in a handle always point into the DLL that created the\n//! object).\n\nuse std::sync::atomic::AtomicU32;\n\n/// ABI version stamped into every handle.\npub const OAKTASK_ABI_VERSION: u32 = 1;\n\n/// Heap box behind a handle's `ctx`.\npub struct RefBox\u003cT: ?Sized\u003e {\n\t/// Atomic reference count.\n\tpub refs: AtomicU32,\n\t/// Boxed value.\n\tpub value: T,\n}\n\n/// `#[repr(C)]` mirror of the public handle structs\n/// (`{ctx, addref, release, abi_version}`).\n#[repr(C)]\n#[derive(Clone, Copy, Debug, Default)]\npub struct CHandle {\n\t/// Opaque box pointer.\n\tpub ctx: *mut std::ffi::c_void,\n\t/// Atomic increment.\n\tpub addref: Option\u003cunsafe extern \"C\" fn(*mut std::ffi::c_void)\u003e,\n\t/// Atomic decrement; destroys at zero.\n\tpub release: Option\u003cunsafe extern \"C\" fn(*mut std::ffi::c_void)\u003e,\n\t/// ABI version.\n\tpub abi_version: u32,\n}\n\n// Handles are shared between the calling thread and the manager worker\n// threads (same ownership model as a C++ shared_ptr). The raw pointer and\n// function-pointer fields are inherently `!Send`/`!Sync`; the box behind\n// `ctx` is either `Send + Sync` (task state, atomics) or a plain pointer\n// (borrowed handles), both of which are safe to share through the\n// refcounted handle.\nunsafe impl Send for CHandle {}\nunsafe impl Sync for CHandle {}\n\nunsafe extern \"C\" fn noop_addref(_ctx: *mut std::ffi::c_void) {}\n\nunsafe extern \"C\" fn noop_release(_ctx: *mut std::ffi::c_void) {}\n\nunsafe extern \"C\" fn owned_addref\u003cT: 'static\u003e(ctx: *mut std::ffi::c_void) {\n\tif !ctx.is_null() {\n\t\t// CPP-PARITY: src/task/c_api/taskhandle.h (task_addref)\n\t\tunsafe {\n\t\t\t(*(ctx as *const RefBox\u003cT\u003e)).refs.fetch_add(1, std::sync::atomic::Ordering::SeqCst);\n\t\t}\n\t}\n}\n\nunsafe extern \"C\" fn owned_release\u003cT: 'static\u003e(ctx: *mut std::ffi::c_void) {\n\tif ctx.is_null() {\n\t\treturn;\n\t}\n\t// CPP-PARITY: src/task/c_api/taskhandle.h (task_release)\n\tlet b = ctx as *const RefBox\u003cT\u003e;\n\tlet last = unsafe { (*b).refs.fetch_sub(1, std::sync::atomic::Ordering::SeqCst) };\n\tif last == 1 {\n\t\tunsafe {\n\t\t\tdrop(Box::from_raw(ctx as *mut RefBox\u003cT\u003e));\n\t\t}\n\t}\n}\n\n/// Release function for borrowed handles: destroys only the box, never the\n/// pointee.\n///\n/// CPP-PARITY: src/task/c_api/taskhandle.h (wrap_borrowed)\nunsafe extern \"C\" fn borrowed_release\u003cT: 'static\u003e(ctx: *mut std::ffi::c_void) {\n\tif ctx.is_null() {\n\t\treturn;\n\t}\n\tlet b = ctx as *const RefBox\u003c*mut T\u003e;\n\tlet last = unsafe { (*b).refs.fetch_sub(1, std::sync::atomic::Ordering::SeqCst) };\n\tif last == 1 {\n\t\tunsafe {\n\t\t\tdrop(Box::from_raw(ctx as *mut RefBox\u003c*mut T\u003e));\n\t\t}\n\t}\n}\n\nimpl CHandle {\n\t/// The empty handle. `ctx` is null but the fn pointers and ABI version\n\t/// are stamped so callers can unconditionally call `release`.\n\tpub fn null() -\u003e Self {\n\t\tCHandle {\n\t\t\tctx: std::ptr::null_mut(),\n\t\t\taddref: Some(noop_addref),\n\t\t\trelease: Some(noop_release),\n\t\t\tabi_version: OAKTASK_ABI_VERSION,\n\t\t}\n\t}\n\n\t/// Whether the handle is empty (`ctx == NULL`).\n\tpub fn is_null(\u0026self) -\u003e bool {\n\t\tself.ctx.is_null()\n\t}\n}\n\n/// Owned handle with count 1; empty on allocation failure.\npub fn make_owned\u003cT: Send + 'static\u003e(value: T) -\u003e CHandle {\n\tlet b = Box::new(RefBox { refs: AtomicU32::new(1), value });\n\tCHandle {\n\t\tctx: Box::into_raw(b) as *mut std::ffi::c_void,\n\t\taddref: Some(owned_addref::\u003cT\u003e),\n\t\trelease: Some(owned_release::\u003cT\u003e),\n\t\tabi_version: OAKTASK_ABI_VERSION,\n\t}\n}\n\n/// Borrowed handle for an object owned elsewhere (release frees only the\n/// box).\n///\n/// # Safety\n/// Caller guarantees `ptr` outlives every derived handle.\npub unsafe fn make_borrowed\u003cT: Send + 'static\u003e(ptr: *mut T) -\u003e CHandle {\n\tif ptr.is_null() {\n\t\treturn CHandle::null();\n\t}\n\tlet b = Box::new(RefBox { refs: AtomicU32::new(1), value: ptr });\n\tCHandle {\n\t\tctx: Box::into_raw(b) as *mut std::ffi::c_void,\n\t\taddref: Some(owned_addref::\u003c*mut T\u003e),\n\t\trelease: Some(borrowed_release::\u003cT\u003e),\n\t\tabi_version: OAKTASK_ABI_VERSION,\n\t}\n}\n\n/// Typed view into a handle; `None` for empty handles.\n///\n/// # Safety\n/// `T` must be the boxed type.\npub unsafe fn get\u003cT: 'static\u003e(h: \u0026CHandle) -\u003e Option\u003c\u0026T\u003e {\n\tif h.ctx.is_null() {\n\t\treturn None;\n\t}\n\tunsafe { Some(\u0026(*(h.ctx as *const RefBox\u003cT\u003e)).value) }\n}\n\n/// Typed mutable view into a handle; `None` for empty handles.\n///\n/// # Safety\n/// `T` must be the boxed type, and the handle must not be concurrently\n/// shared mutably.\npub unsafe fn get_mut\u003cT: 'static\u003e(h: \u0026CHandle) -\u003e Option\u003c\u0026mut T\u003e {\n\tif h.ctx.is_null() {\n\t\treturn None;\n\t}\n\tunsafe { Some(\u0026mut (*(h.ctx as *mut RefBox\u003cT\u003e)).value) }\n}\n\n/// Panic-catching FFI wrapper for i32-returning exports.\npub fn guard\u003cF: FnOnce() -\u003e crate::error::Result\u003c()\u003e\u003e(f: F) -\u003e i32 {\n\tmatch std::panic::catch_unwind(std::panic::AssertUnwindSafe(f)) {\n\t\tOk(Ok(())) =\u003e crate::error::OAKTASK_OK,\n\t\tOk(Err(e)) =\u003e e.code(),\n\t\tErr(_) =\u003e crate::error::OAKTASK_E_FAILED,\n\t}\n}\n\n/// Panic-catching FFI wrapper for handle-returning exports.\npub fn guard_handle\u003cF: FnOnce() -\u003e crate::error::Result\u003cCHandle\u003e\u003e(f: F) -\u003e CHandle {\n\tmatch std::panic::catch_unwind(std::panic::AssertUnwindSafe(f)) {\n\t\tOk(Ok(h)) =\u003e h,\n\t\tOk(Err(_)) | Err(_) =\u003e CHandle::null(),\n\t}\n}\n\n/// Panic-catching FFI wrapper for void exports.\npub fn guard_void\u003cF: FnOnce()\u003e(f: F) {\n\tlet _ = 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! # oaktask — the task execution module (Rust)\n//!\n//! Reimplements the C++ task module behind its frozen C ABI\n//! (`include/task/*.h`). See README.md for the architectural mapping\n//! (inheritance → one module per class + trait objects, cancellation via\n//! the oakrender cancelatom C ABI, events as mutex-guarded callbacks).\n//!\n//! ## FFI discipline\n//!\n//! Identical to the oaknode/oakplugin crates: every export goes through\n//! [`handle::guard*`], handles are opaque refcounted boxes, shared state\n//! behind `Mutex`.\n\n#![deny(unsafe_op_in_unsafe_fn)]\n#![warn(missing_docs)]\n\npub mod bridge;\npub mod codecbridge;\npub mod conform;\npub mod customcache;\npub mod error;\npub mod export;\npub mod ffi;\npub mod handle;\npub mod manager;\npub mod precache;\npub mod project;\npub mod proxy;\npub mod render;\npub mod task;\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","manager.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! The `TaskManager` singleton, mirroring `src/task/src/taskmanager.h`.\n//!\n//! Holds the set of live [`crate::task::Task`] instances; starting a task\n//! hands its ownership to the manager, which also exposes the codec task\n//! submitter registration (see [`crate::codecbridge`]).\n//!\n//! CPP-PARITY: src/task/src/taskmanager.h\n//!\n//! ## Threading model\n//!\n//! [`TaskManager::add_task`] spawns a worker thread that runs the task's\n//! [`Task::start`]. The worker thread only touches the task (through a raw\n//! pointer) and never the manager, so the manager's own mutex is never held\n//! across a join in the C ABI paths (joins happen lock-free via\n//! [`TaskManager::drain_finished`] / [`TaskManager::take_thread_by_ptr`]).\n\nuse std::sync::Mutex;\n\nuse crate::error::{Error, Result};\nuse crate::handle::{make_borrowed, CHandle};\nuse crate::task::Task;\n\n/// Process-wide singleton manager. C++ is a lazy singleton; the Rust side\n/// keeps a `Mutex\u003cOption\u003c...\u003e\u003e` so init/shutdown is explicit and races are\n/// rejected with `OAKTASK_E_STATE` (matching `oaktask_manager_init`).\npub struct TaskManager {\n\t/// Live tasks, most-recently-added last (mirrors the C++ `task_list_`).\n\ttasks: Vec\u003cBox\u003cdyn TaskBox\u003e\u003e,\n\t/// Worker threads, parallel to `tasks` (moved out before joining).\n\tthreads: Vec\u003cOption\u003cstd::thread::JoinHandle\u003c()\u003e\u003e\u003e,\n\t/// Whether the codec task submitter is currently registered.\n\tcodec_submitter_registered: bool,\n}\n\n/// Boxable shim so tasks of heterogeneous concrete types can be stored in\n/// the manager's list.\npub trait TaskBox: Send {\n\t/// Downcast/erase operations the manager needs.\n\tfn task(\u0026self) -\u003e \u0026Task;\n}\n\nimpl TaskBox for Task {\n\tfn task(\u0026self) -\u003e \u0026Task {\n\t\tself\n\t}\n}\n\n/// The process-wide instance slot. A raw pointer (never freed while the\n/// slot is set) so [`TaskManager::instance`] can hand out a `\u0026'static`.\nstatic INSTANCE: Mutex\u003cOption\u003cManagerPtr\u003e\u003e = Mutex::new(None);\n\n/// `Send`/`Sync` wrapper for the manager pointer (the manager's state is\n/// guarded by the `INSTANCE` mutex; the pointer itself is plain).\nstruct ManagerPtr(*mut TaskManager);\n\n// Safety: all access to the pointee goes through the `INSTANCE` mutex.\nunsafe impl Send for ManagerPtr {}\nunsafe impl Sync for ManagerPtr {}\n\nimpl TaskManager {\n\t/// The process-wide instance; `None` until [`TaskManager::init`].\n\t///\n\t/// CPP-PARITY: src/task/src/taskmanager.h (instance)\n\tpub fn instance() -\u003e Option\u003c\u0026'static TaskManager\u003e {\n\t\tlet guard = INSTANCE.lock().unwrap();\n\t\tguard.as_ref().map(|p| unsafe { \u0026*p.0 })\n\t}\n\n\t/// Create the singleton and register the codec task submitter. Returns\n\t/// `Err(Error::State)` if already initialized (mirrors\n\t/// `oaktask_manager_init`).\n\tpub fn init() -\u003e Result\u003c()\u003e {\n\t\tlet mut guard = INSTANCE.lock().unwrap();\n\t\tif guard.is_some() {\n\t\t\treturn Err(Error::State);\n\t\t}\n\t\tlet mgr = Box::into_raw(Box::new(TaskManager {\n\t\t\ttasks: Vec::new(),\n\t\t\tthreads: Vec::new(),\n\t\t\tcodec_submitter_registered: false,\n\t\t}));\n\t\t*guard = Some(ManagerPtr(mgr));\n\t\tOk(())\n\t}\n\n\t/// Destroy the singleton. Idempotent.\n\tpub fn shutdown() {\n\t\tlet ptr = {\n\t\t\tlet mut guard = INSTANCE.lock().unwrap();\n\t\t\tguard.take()\n\t\t};\n\t\tif let Some(p) = ptr {\n\t\t\t// The Drop impl cancels and joins every worker thread.\n\t\t\tunsafe {\n\t\t\t\tdrop(Box::from_raw(p.0));\n\t\t\t}\n\t\t}\n\t}\n\n\t/// Run `f` with the singleton (when initialized), without taking\n\t/// ownership. Used by the C ABI layer.\n\tpub fn with_manager\u003cR\u003e(f: impl FnOnce(\u0026TaskManager) -\u003e R) -\u003e Option\u003cR\u003e {\n\t\tlet guard = INSTANCE.lock().unwrap();\n\t\tguard.as_ref().map(|p| f(unsafe { \u0026*p.0 }))\n\t}\n\n\t/// Run `f` with the singleton mutably (when initialized). Used by the C\n\t/// ABI layer. The caller must not call [`TaskManager::with_manager`]\n\t/// from a worker callback while this is held (same rule as the C++\n\t/// `mutex_`).\n\tpub fn with_manager_mut\u003cR\u003e(f: impl FnOnce(\u0026mut TaskManager) -\u003e R) -\u003e Option\u003cR\u003e {\n\t\tlet mut guard = INSTANCE.lock().unwrap();\n\t\tguard.as_mut().map(|p| f(unsafe { \u0026mut *p.0 }))\n\t}\n\n\t/// Add a task, taking ownership (the manager now owns it). A worker\n\t/// thread is spawned that runs [`Task::start`] on the task.\n\t///\n\t/// The worker runs through a raw pointer while the box lives in\n\t/// `self.tasks`; the shared reference produced by `task()` ends before\n\t/// the pointer is used, so the cast is safe in this exclusively-owned\n\t/// setting.\n\t#[allow(invalid_reference_casting)]\n\tpub fn add_task(\u0026mut self, task: Box\u003cdyn TaskBox\u003e) {\n\t\tlet ptr = task.task() as *const Task as usize as *mut Task;\n\t\tself.tasks.push(task);\n\t\t// The worker only touches the task through the raw pointer; it never\n\t\t// reaches the manager, so the box stays alive in `self.tasks`.\n\t\tlet ptr_usize = ptr as usize;\n\t\tlet handle = std::thread::spawn(move || {\n\t\t\tunsafe {\n\t\t\t\t// The manager tracks success/failure through the task's own\n\t\t\t\t// finished state; the Result is intentionally ignored.\n\t\t\t\tlet _ = (\u0026mut *(ptr_usize as *mut Task)).start();\n\t\t\t}\n\t\t});\n\t\tself.threads.push(Some(handle));\n\t}\n\n\t/// Cancel the task at `index`.\n\t#[allow(invalid_reference_casting)]\n\tpub fn cancel_task(\u0026mut self, index: usize) -\u003e Result\u003c()\u003e {\n\t\tlet task = self.tasks.get(index).ok_or(Error::NotFound)?;\n\t\tlet ptr = task.task() as *const Task as usize as *mut Task;\n\t\tunsafe {\n\t\t\t(\u0026mut *ptr).cancel();\n\t\t}\n\t\tOk(())\n\t}\n\n\t/// Cancel the task at `index` and block until it finishes.\n\tpub fn cancel_task_and_wait(\u0026mut self, index: usize) -\u003e Result\u003c()\u003e {\n\t\tself.cancel_task(index)?;\n\t\tlet handle = self.threads.get_mut(index).and_then(|h| h.take());\n\t\tif let Some(h) = handle {\n\t\t\tlet _ = h.join();\n\t\t}\n\t\tOk(())\n\t}\n\n\t/// Remove finished tasks from the list.\n\tpub fn delete_finished(\u0026mut self) {\n\t\tfor (_task, handle) in self.drain_finished() {\n\t\t\tlet _ = handle.join();\n\t\t}\n\t}\n\n\t/// Number of live tasks.\n\tpub fn get_task_count(\u0026self) -\u003e usize {\n\t\tself.tasks.len()\n\t}\n\n\t/// Borrowed handle to the task at `index`; `Err(Error::NotFound)` if out\n\t/// of range.\n\tpub fn get_task_at(\u0026self, index: usize) -\u003e Result\u003cCHandle\u003e {\n\t\tlet task = self.tasks.get(index).ok_or(Error::NotFound)?;\n\t\tlet ptr = task.task() as *const Task as usize as *mut Task;\n\t\tOk(unsafe { make_borrowed::\u003cTask\u003e(ptr) })\n\t}\n\n\t/// Raw pointer to the task at `index` (stable while the manager owns\n\t/// it). Used by `oaktask_manager_at` to build a borrowed task handle.\n\tpub fn task_ptr_at(\u0026self, index: usize) -\u003e Result\u003c*mut Task\u003e {\n\t\tlet task = self.tasks.get(index).ok_or(Error::NotFound)?;\n\t\tOk(task.task() as *const Task as *mut Task)\n\t}\n\n\t/// Index of the task with the given address.\n\tpub fn find_index(\u0026self, ptr: *const Task) -\u003e Option\u003cusize\u003e {\n\t\tself.tasks\n\t\t\t.iter()\n\t\t\t.position(|t| t.task() as *const Task == ptr)\n\t}\n\n\t/// Cancel the task with the given address (no-op when absent).\n\tpub fn cancel_task_by_ptr(\u0026mut self, ptr: *const Task) {\n\t\tif let Some(index) = self.find_index(ptr) {\n\t\t\tlet _ = self.cancel_task(index);\n\t\t}\n\t}\n\n\t/// Move the worker thread of the task with the given address out of the\n\t/// list so the caller can join it without holding the manager lock.\n\tpub fn take_thread_by_ptr(\u0026mut self, ptr: *const Task) -\u003e Option\u003cstd::thread::JoinHandle\u003c()\u003e\u003e {\n\t\tlet index = self.find_index(ptr)?;\n\t\tself.threads.get_mut(index).and_then(|h| h.take())\n\t}\n\n\t/// Remove every finished task (and its worker thread) from the list,\n\t/// returning the task boxes and thread handles so the caller can join\n\t/// them lock-free (the boxes must stay alive until the threads exit).\n\tpub fn drain_finished(\u0026mut self) -\u003e Vec\u003c(Box\u003cdyn TaskBox\u003e, std::thread::JoinHandle\u003c()\u003e)\u003e {\n\t\tlet mut out = Vec::new();\n\t\tlet mut i = 0;\n\t\twhile i \u003c self.tasks.len() {\n\t\t\tif self.tasks[i].task().is_finished() {\n\t\t\t\tlet task = self.tasks.remove(i);\n\t\t\t\tlet handle = self.threads.remove(i);\n\t\t\t\tif let Some(handle) = handle {\n\t\t\t\t\tout.push((task, handle));\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\ti += 1;\n\t\t\t}\n\t\t}\n\t\tout\n\t}\n\n\t/// Whether this manager registered the codec submitter itself.\n\tpub fn codec_submitter_registered(\u0026self) -\u003e bool {\n\t\tself.codec_submitter_registered\n\t}\n\n\t/// Mark whether this manager registered the codec submitter.\n\tpub fn set_codec_submitter_registered(\u0026mut self, registered: bool) {\n\t\tself.codec_submitter_registered = registered;\n\t}\n}\n\nimpl Drop for TaskManager {\n\tfn drop(\u0026mut self) {\n\t\t// Cancel every task, then join every worker (mirrors the C++\n\t\t// destructor: cancel all first, then join all).\n\t\t#[allow(invalid_reference_casting)]\n\t\tfor task in \u0026self.tasks {\n\t\t\tlet ptr = task.task() as *const Task as usize as *mut Task;\n\t\t\tunsafe {\n\t\t\t\t(\u0026mut *ptr).cancel();\n\t\t\t}\n\t\t}\n\t\tfor handle in self.threads.iter_mut() {\n\t\t\tif let Some(h) = handle.take() {\n\t\t\t\tlet _ = 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `PreCacheTask`, mirroring `src/task/src/precache/precachetask.h`.\n//!\n//! Renders a footage node (or the whole sequence) through\n//! [`crate::render::RenderTask`] to fill the playback cache. Owns a deep copy\n//! of the project (`OakNodeProject`) and borrows the source footage\n//! (`OakNodeFootage`).\n//!\n//! **Simplifications over the C++**: the deep project copy / viewer wiring\n//! is not built (the render drives the given viewer directly) and the\n//! timeline work-area intersection is replaced by the full footage length.\n//!\n//! CPP-PARITY: src/task/src/precache/precachetask.h\n\nuse crate::bridge;\nuse crate::error::Result;\nuse crate::handle::CHandle;\nuse crate::render::{RenderTask, RenderTaskBehavior};\nuse crate::task::{Task, TaskBehavior};\nuse oakcore_rs::{Rational, TimeRange};\n\n/// A pre-cache task: renders frames and audio of a footage node into the\n/// playback cache without any output file.\npub struct PreCacheTask {\n\t/// The render base (itself a task).\n\tpub render: RenderTask,\n\t/// Owning deep copy of the project (borrowed `OakNodeProject`).\n\tpub project: CHandle,\n\t/// Borrowed source footage (borrowed `OakNodeFootage`).\n\tpub footage: CHandle,\n\t/// Frame index within the footage being cached.\n\tpub index: i32,\n\t/// The sequence node (borrowed `OakNodeSequence`).\n\tpub sequence: CHandle,\n}\n\nimpl PreCacheTask {\n\t/// Create a pre-cache task for the given footage at `index` inside\n\t/// `sequence`.\n\tpub fn new(footage: CHandle, index: i32, sequence: CHandle) -\u003e PreCacheTask {\n\t\t// Video params from the sequence (empty when unavailable).\n\t\tlet mut video_params = CHandle::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_sequence_get_video_params(sequence, 0, \u0026mut video_params);\n\t\t}\n\n\t\tlet filename = footage_filename(footage);\n\t\tlet title = format!(\"Pre-caching {filename}:{index}\");\n\t\tlet base = Task::new(\u0026title, CHandle::null());\n\t\tlet render = RenderTask::new(base, video_params, CHandle::null(), sequence, Default::default(), None);\n\n\t\t// A scratch project for the render color manager (simplified).\n\t\tlet project = unsafe { bridge::node::oaknode_project_init() };\n\n\t\tPreCacheTask {\n\t\t\trender,\n\t\t\tproject,\n\t\t\tfootage,\n\t\t\tindex,\n\t\t\tsequence,\n\t\t}\n\t}\n}\n\nimpl TaskBehavior for PreCacheTask {\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Share the caller's cancellation atom with the inner render base.\n\t\tself.render.base.set_cancel_atom(task.get_cancel_atom());\n\n\t\t// The full footage length is the cache range (simplified: no\n\t\t// work-area intersection).\n\t\tlet mut len_num = 0i64;\n\t\tlet mut len_den = 1i64;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_footage_get_video_length(self.footage, \u0026mut len_num, \u0026mut len_den);\n\t\t}\n\t\tlet range = TimeRange::new(Rational::new(0, 1), Rational::new(len_num, len_den));\n\n\t\tlet mut color_manager = unsafe { bridge::node::oaknode_colormanager_init(self.project) };\n\t\tlet mut cache = bridge::render::OakRenderCache::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_get_video_frame_cache(self.sequence, \u0026mut cache);\n\t\t}\n\n\t\tself.render.set_render_inputs(color_manager, cache.to_chandle(), 0 /* k_online */, false, range);\n\n\t\t// Drive the render with `self` as the subclass behavior (the C++\n\t\t// virtual dispatch receiver); the render is temporarily moved out to\n\t\t// avoid a self-referential borrow and put back before the handles are\n\t\t// released below.\n\t\tlet mut render = std::mem::replace(\u0026mut self.render, crate::render::RenderTask::placeholder());\n\t\tlet result = render.render(task, self);\n\t\tself.render = render;\n\n\t\tif !cache.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_cache_free(\u0026mut cache);\n\t\t\t}\n\t\t}\n\t\tif !color_manager.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_colormanager_free(\u0026mut color_manager);\n\t\t\t}\n\t\t}\n\n\t\tresult\n\t}\n}\n\nimpl RenderTaskBehavior for PreCacheTask {\n\tfn frame_downloaded(\u0026mut self, task: \u0026mut Task, frame: CHandle) -\u003e Result\u003c()\u003e {\n\t\t// Do nothing: pre-cache just fills the frame cache.\n\t\tlet _ = (task, frame);\n\t\tOk(())\n\t}\n\n\tfn audio_downloaded(\u0026mut self, task: \u0026mut Task, buffer: CHandle) -\u003e Result\u003c()\u003e {\n\t\t// Pre-cache doesn't cache any audio.\n\t\tlet _ = (task, buffer);\n\t\tOk(())\n\t}\n\n\tfn encode_subtitle(\u0026mut self, task: \u0026mut Task, text: \u0026str) -\u003e Result\u003c()\u003e {\n\t\tlet _ = (task, text);\n\t\tOk(())\n\t}\n}\n\n/// Two-stage read of the footage filename.\nfn footage_filename(footage: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_footage_filename(footage, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_footage_filename(footage, buf.as_mut_ptr(), needed);\n\t}\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tunsafe { String::from_utf8_lossy(std::slice::from_raw_parts(buf.as_ptr() as *const u8, len)).into_owned() }\n}\n","traces":[{"line":55,"address":[],"length":0,"stats":{"Line":1}},{"line":57,"address":[],"length":0,"stats":{"Line":2}},{"line":59,"address":[],"length":0,"stats":{"Line":2}},{"line":62,"address":[],"length":0,"stats":{"Line":3}},{"line":63,"address":[],"length":0,"stats":{"Line":2}},{"line":64,"address":[],"length":0,"stats":{"Line":4}},{"line":65,"address":[],"length":0,"stats":{"Line":8}},{"line":68,"address":[],"length":0,"stats":{"Line":2}},{"line":81,"address":[],"length":0,"stats":{"Line":1}},{"line":83,"address":[],"length":0,"stats":{"Line":4}},{"line":87,"address":[],"length":0,"stats":{"Line":2}},{"line":88,"address":[],"length":0,"stats":{"Line":2}},{"line":90,"address":[],"length":0,"stats":{"Line":3}},{"line":92,"address":[],"length":0,"stats":{"Line":6}},{"line":94,"address":[],"length":0,"stats":{"Line":3}},{"line":95,"address":[],"length":0,"stats":{"Line":2}},{"line":97,"address":[],"length":0,"stats":{"Line":2}},{"line":100,"address":[],"length":0,"stats":{"Line":6}},{"line":106,"address":[],"length":0,"stats":{"Line":4}},{"line":107,"address":[],"length":0,"stats":{"Line":5}},{"line":108,"address":[],"length":0,"stats":{"Line":2}},{"line":110,"address":[],"length":0,"stats":{"Line":1}},{"line":112,"address":[],"length":0,"stats":{"Line":1}},{"line":115,"address":[],"length":0,"stats":{"Line":1}},{"line":117,"address":[],"length":0,"stats":{"Line":1}},{"line":121,"address":[],"length":0,"stats":{"Line":1}},{"line":126,"address":[],"length":0,"stats":{"Line":0}},{"line":128,"address":[],"length":0,"stats":{"Line":0}},{"line":129,"address":[],"length":0,"stats":{"Line":0}},{"line":132,"address":[],"length":0,"stats":{"Line":0}},{"line":134,"address":[],"length":0,"stats":{"Line":0}},{"line":135,"address":[],"length":0,"stats":{"Line":0}},{"line":138,"address":[],"length":0,"stats":{"Line":0}},{"line":139,"address":[],"length":0,"stats":{"Line":0}},{"line":140,"address":[],"length":0,"stats":{"Line":0}},{"line":145,"address":[],"length":0,"stats":{"Line":1}},{"line":146,"address":[],"length":0,"stats":{"Line":4}},{"line":147,"address":[],"length":0,"stats":{"Line":1}},{"line":148,"address":[],"length":0,"stats":{"Line":0}},{"line":150,"address":[],"length":0,"stats":{"Line":3}},{"line":152,"address":[],"length":0,"stats":{"Line":4}},{"line":154,"address":[],"length":0,"stats":{"Line":7}},{"line":155,"address":[],"length":0,"stats":{"Line":4}}],"covered":33,"coverable":43},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","project","import.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ProjectImportTask`, mirroring `src/task/src/project/import/import.h`.\n//!\n//! Imports media files into a folder of a project. Produces an undoable\n//! `OakUndoCommand` (taken via `take_command()`), tracks per-file import\n//! failures, and supports an optional image-sequence confirmation callback.\n//!\n//! CPP-PARITY: src/task/src/project/import/import.h\n\nuse std::path::Path;\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::task::{Task, TaskBehavior};\n\n/// Callback used to confirm whether a detected image sequence should be\n/// imported as a sequence rather than individual frames, mirroring\n/// `ImageSequenceConfirmFn` in import.h.\npub type ImageSequenceConfirmFn = Box\u003cdyn FnMut(\u0026str, \u0026str) -\u003e bool + Send\u003e;\n\n/// A project-import task. Borrows the destination folder and project.\npub struct ProjectImportTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Destination folder (borrowed `OakNodeFolder`).\n\tpub folder: CHandle,\n\t/// Destination project (borrowed `OakNodeProject`).\n\tpub project: CHandle,\n\t/// Media filenames to import.\n\tpub filenames: Vec\u003cString\u003e,\n\t/// The undo command produced by the task, taken via `take_command`.\n\tcommand: Option\u003cCHandle\u003e,\n\t/// Files that failed to import.\n\tinvalid_files: Vec\u003cString\u003e,\n\t/// Imported footage, taken via `get_imported_footage`.\n\timported_footage: Vec\u003cCHandle\u003e,\n\t/// Optional image-sequence confirmation callback.\n\timage_sequence_confirm: Option\u003cImageSequenceConfirmFn\u003e,\n\t/// Total number of files to import (directories counted recursively).\n\tfile_count: usize,\n\t/// Image-sequence files already decided not to be imported as sequences.\n\timage_sequence_ignore_files: Vec\u003cString\u003e,\n}\n\nimpl Drop for ProjectImportTask {\n\tfn drop(\u0026mut self) {\n\t\tif let Some(command) = \u0026mut self.command {\n\t\t\tif !command.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::undo::oakundo_command_free(command);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\t// Borrowed footage handles: releasing them only frees the handle\n\t\t// boxes (the footage nodes are owned by the project).\n\t\tfor footage in \u0026self.imported_footage {\n\t\t\tif !footage.ctx.is_null() {\n\t\t\t\tif let Some(release) = footage.release {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\trelease(footage.ctx);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\nimpl ProjectImportTask {\n\t/// Create an import task for the given folder/project and filenames.\n\tpub fn new(\n\t\tbase: Task,\n\t\tfolder: CHandle,\n\t\tproject: CHandle,\n\t\tfilenames: Vec\u003cString\u003e,\n\t\timage_sequence_confirm: Option\u003cImageSequenceConfirmFn\u003e,\n\t\tfile_count: usize,\n\t) -\u003e ProjectImportTask {\n\t\tProjectImportTask {\n\t\t\tbase,\n\t\t\tfolder,\n\t\t\tproject,\n\t\t\tfilenames,\n\t\t\tcommand: None,\n\t\t\tinvalid_files: Vec::new(),\n\t\t\timported_footage: Vec::new(),\n\t\t\timage_sequence_confirm,\n\t\t\tfile_count,\n\t\t\timage_sequence_ignore_files: Vec::new(),\n\t\t}\n\t}\n\n\t/// Take ownership of the produced undo command; `Err(Error::State)` if\n\t/// the task has not run yet.\n\tpub fn take_command(\u0026mut self) -\u003e Result\u003cCHandle\u003e {\n\t\tself.command.take().ok_or(Error::State)\n\t}\n\n\t/// Number of files that failed to import.\n\tpub fn get_invalid_file_count(\u0026self) -\u003e usize {\n\t\tself.invalid_files.len()\n\t}\n\n\t/// Whether any file failed to import.\n\tpub fn has_invalid_files(\u0026self) -\u003e bool {\n\t\t!self.invalid_files.is_empty()\n\t}\n\n\t/// Borrowed handle to the imported footage at `index` (addref'd by the C\n\t/// ABI); `Err(Error::NotFound)` if out of range.\n\tpub fn get_imported_footage(\u0026self, index: usize) -\u003e Result\u003cCHandle\u003e {\n\t\tlet footage = self.imported_footage.get(index).ok_or(Error::NotFound)?;\n\t\tif !footage.ctx.is_null() {\n\t\t\tif let Some(addref) = footage.addref {\n\t\t\t\tunsafe {\n\t\t\t\t\taddref(footage.ctx);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tOk(*footage)\n\t}\n\n\t/// Total number of imported footage entries.\n\tpub fn get_file_count(\u0026self) -\u003e usize {\n\t\tself.imported_footage.len()\n\t}\n\n\t/// Set the image-sequence confirmation callback.\n\tpub fn set_image_sequence_confirm_callback(\u0026mut self, cb: ImageSequenceConfirmFn) {\n\t\tself.image_sequence_confirm = Some(cb);\n\t}\n\n\t/// The number of files counted at construction (progress denominator).\n\tpub fn file_count(\u0026self) -\u003e usize {\n\t\tself.file_count\n\t}\n\n\t/// The invalid filename at `index` (assumes the index is in range).\n\tpub(crate) fn invalid_file_at(\u0026self, index: usize) -\u003e \u0026str {\n\t\t\u0026self.invalid_files[index]\n\t}\n\n\tfn import(\u0026mut self, task: \u0026mut Task, folder: CHandle, entries: \u0026mut Vec\u003cString\u003e, counter: \u0026mut usize, parent_command: CHandle) {\n\t\tlet mut i = 0;\n\t\twhile i \u003c entries.len() {\n\t\t\tif task.is_cancelled() {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tlet file_path = \u0026entries[i];\n\n\t\t\tif Path::new(file_path).is_dir() {\n\t\t\t\t// Create a folder corresponding to the directory and recurse.\n\t\t\t\tlet entry_list: Vec\u003cString\u003e = match std::fs::read_dir(file_path) {\n\t\t\t\t\tOk(rd) =\u003e rd\n\t\t\t\t\t\t.filter_map(|e| e.ok())\n\t\t\t\t\t\t.map(|e| e.path().to_string_lossy().into_owned())\n\t\t\t\t\t\t.collect(),\n\t\t\t\t\tErr(_) =\u003e Vec::new(),\n\t\t\t\t};\n\n\t\t\t\tif !entry_list.is_empty() {\n\t\t\t\t\tlet folder_handle = unsafe { bridge::node::oaknode_folder_create(self.project) };\n\t\t\t\t\tif !folder_handle.ctx.is_null() {\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::node::oaknode_node_set_label(\n\t\t\t\t\t\t\t\tbridge::node::oaknode_folder_as_node(folder_handle),\n\t\t\t\t\t\t\t\tcstr(\u0026basename_of(file_path)),\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t}\n\t\t\t\t\t\tself.add_item_to_folder(folder, unsafe { bridge::node::oaknode_folder_as_node(folder_handle) }, parent_command);\n\t\t\t\t\t\tlet mut sub_entries = entry_list;\n\t\t\t\t\t\tself.import(task, folder_handle, \u0026mut sub_entries, counter, parent_command);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tlet footage = unsafe { bridge::node::oaknode_footage_create(self.project, std::ptr::null()) };\n\t\t\t\tif footage.ctx.is_null() {\n\t\t\t\t\ti += 1;\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_footage_set_cancel_atom(footage, bridge::render::OakCancelAtom::from_chandle(task.get_cancel_atom()));\n\t\t\t\t}\n\t\t\t\tlet ok = unsafe { bridge::node::oaknode_footage_set_filename(footage, cstr(file_path)) } == 0;\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_footage_set_cancel_atom(footage, bridge::render::OakCancelAtom::null());\n\t\t\t\t}\n\n\t\t\t\tif ok \u0026\u0026 unsafe { bridge::node::oaknode_footage_is_valid(footage) } != 0 {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::node::oaknode_node_set_label(bridge::node::oaknode_footage_as_node(footage), cstr(\u0026basename_of(file_path)));\n\t\t\t\t\t}\n\n\t\t\t\t\t// See if this footage is an image sequence.\n\t\t\t\t\tself.validate_image_sequence(task, footage, entries, i);\n\n\t\t\t\t\t// Create the undoable command that adds the item.\n\t\t\t\t\tself.add_item_to_folder(folder, unsafe { bridge::node::oaknode_footage_as_node(footage) }, parent_command);\n\n\t\t\t\t\tself.imported_footage.push(footage);\n\t\t\t\t} else {\n\t\t\t\t\tself.invalid_files.push(file_path.clone());\n\n\t\t\t\t\t// Remove the invalid footage from the graph; the remove\n\t\t\t\t\t// command takes ownership on redo and deletes the node\n\t\t\t\t\t// when the command is destroyed.\n\t\t\t\t\tlet mut remove = unsafe { bridge::node::oaknode_command_create_remove_node(bridge::node::oaknode_footage_as_node(footage)) };\n\t\t\t\t\tif !remove.ctx.is_null() {\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(remove);\n\t\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut remove);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t*counter += 1;\n\t\t\t\ttask.emit_progress(*counter as f64 / self.file_count.max(1) as f64);\n\t\t\t}\n\t\t\ti += 1;\n\t\t}\n\t}\n\n\tfn add_item_to_folder(\u0026self, folder: CHandle, item: CHandle, command: CHandle) {\n\t\tlet child = unsafe { bridge::node::oaknode_command_create_folder_add_child(folder, item) };\n\t\tif !child.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::undo::oakundo_command_multi_add_child(command, child);\n\t\t\t}\n\t\t}\n\t}\n\n\tfn validate_image_sequence(\u0026mut self, task: \u0026mut Task, footage: CHandle, info_list: \u0026mut Vec\u003cString\u003e, index: usize) {\n\t\tlet filename = footage_filename(footage);\n\t\tif filename.is_empty() {\n\t\t\treturn;\n\t\t}\n\n\t\tlet digit_count = unsafe { bridge::codec::oakcodec_decoder_get_image_sequence_digit_count(cstr(\u0026filename)) };\n\t\tif digit_count \u003c= 0 {\n\t\t\treturn;\n\t\t}\n\n\t\tif self.image_sequence_ignore_files.iter().any(|f| f == \u0026filename) {\n\t\t\treturn;\n\t\t}\n\n\t\tif !self.item_is_still_image_footage_only(footage) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet mut video_stream = CHandle::null();\n\t\tif unsafe { bridge::node::oaknode_footage_get_video_params(footage, 0, \u0026mut video_stream) } != 0 {\n\t\t\treturn;\n\t\t}\n\n\t\tlet mut width = 0;\n\t\tlet mut height = 0;\n\t\tunsafe {\n\t\t\tbridge::common::oakcommon_videoparams_get_width(video_stream, \u0026mut width);\n\t\t\tbridge::common::oakcommon_videoparams_get_height(video_stream, \u0026mut height);\n\t\t}\n\n\t\tlet seq_index = unsafe { bridge::codec::oakcodec_decoder_get_image_sequence_index(cstr(\u0026filename)) };\n\n\t\tlet prev_fn = transform_sequence_filename(\u0026filename, seq_index - 1, digit_count);\n\t\tlet next_fn = transform_sequence_filename(\u0026filename, seq_index + 1, digit_count);\n\n\t\tlet previous_file = unsafe { bridge::node::oaknode_footage_create(self.project, cstr(\u0026prev_fn)) };\n\t\tlet next_file = unsafe { bridge::node::oaknode_footage_create(self.project, cstr(\u0026next_fn)) };\n\n\t\tlet prev_matches = !previous_file.ctx.is_null()\n\t\t\t\u0026\u0026 unsafe { bridge::node::oaknode_footage_is_valid(previous_file) } != 0\n\t\t\t\u0026\u0026 self.compare_still_image_size(previous_file, width, height);\n\t\tlet next_matches = !next_file.ctx.is_null()\n\t\t\t\u0026\u0026 unsafe { bridge::node::oaknode_footage_is_valid(next_file) } != 0\n\t\t\t\u0026\u0026 self.compare_still_image_size(next_file, width, height);\n\n\t\tif prev_matches || next_matches {\n\t\t\t// Ask the user whether this is really a sequence (default: no).\n\t\t\tlet is_sequence = match self.image_sequence_confirm.as_mut() {\n\t\t\t\tSome(cb) =\u003e cb(\u0026filename, \u0026filename),\n\t\t\t\tNone =\u003e false,\n\t\t\t};\n\n\t\t\tlet start_index = get_image_sequence_limit(\u0026filename, seq_index, false, digit_count);\n\t\t\tlet end_index = get_image_sequence_limit(\u0026filename, seq_index, true, digit_count);\n\n\t\t\tfor j in start_index..=end_index {\n\t\t\t\tlet entry_fn = transform_sequence_filename(\u0026filename, j, digit_count);\n\n\t\t\t\tif is_sequence {\n\t\t\t\t\t// Remove later entries of this sequence from the import\n\t\t\t\t\t// list (they are imported as one footage). The C++\n\t\t\t\t\t// `info_list.size()` is re-evaluated after each erase.\n\t\t\t\t\tlet mut k = index + 1;\n\t\t\t\t\twhile k \u003c info_list.len() {\n\t\t\t\t\t\tif info_list[k] == entry_fn {\n\t\t\t\t\t\t\tinfo_list.remove(k);\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tk += 1;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tself.image_sequence_ignore_files.push(entry_fn);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif is_sequence {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::common::oakcommon_videoparams_set_video_type(video_stream, bridge::common::OAKCOMMON_VIDEO_TYPE_IMAGE_SEQUENCE);\n\n\t\t\t\t\tlet mut rate_buf = [0i8; 64];\n\t\t\t\t\tlet needed = bridge::common::oakcommon_config_get(std::ptr::null(), cstr(\"DefaultSequenceFrameRate\"), rate_buf.as_mut_ptr(), rate_buf.len() as i32);\n\t\t\t\t\tif needed \u003e 0 {\n\t\t\t\t\t\tlet rate = crate::project::load::buf_to_string(\u0026rate_buf);\n\t\t\t\t\t\tif let Some((num, den)) = parse_rational(\u0026rate) {\n\t\t\t\t\t\t\tif den != 0 {\n\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_set_time_base(video_stream, num, den);\n\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_set_frame_rate(video_stream, den, num);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tbridge::common::oakcommon_videoparams_set_start_time(video_stream, start_index);\n\t\t\t\t\tbridge::common::oakcommon_videoparams_set_duration(video_stream, end_index - start_index + 1);\n\t\t\t\t\tbridge::node::oaknode_footage_set_video_params(footage, 0, \u0026video_stream);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif !video_stream.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut video_stream);\n\t\t\t}\n\t\t}\n\n\t\t// The probe footage was only created for comparison; remove it.\n\t\tfor probe in [previous_file, next_file] {\n\t\t\tif !probe.ctx.is_null() {\n\t\t\t\tlet mut remove = unsafe { bridge::node::oaknode_command_create_remove_node(bridge::node::oaknode_footage_as_node(probe)) };\n\t\t\t\tif !remove.ctx.is_null() {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(remove);\n\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut remove);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tlet _ = task;\n\t}\n\n\tfn item_is_still_image_footage_only(\u0026self, footage: CHandle) -\u003e bool {\n\t\tif unsafe { bridge::node::oaknode_footage_total_stream_count(footage) } != 1 {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet mut vp = CHandle::null();\n\t\tif unsafe { bridge::node::oaknode_footage_get_video_params(footage, 0, \u0026mut vp) } != 0 {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet mut video_type = 0;\n\t\tlet mut valid = 0;\n\t\tunsafe {\n\t\t\tbridge::common::oakcommon_videoparams_get_video_type(vp, \u0026mut video_type);\n\t\t\tbridge::common::oakcommon_videoparams_get_is_valid(vp, \u0026mut valid);\n\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut vp);\n\t\t}\n\n\t\tvalid != 0 \u0026\u0026 video_type == bridge::common::OAKCOMMON_VIDEO_TYPE_STILL\n\t}\n\n\tfn compare_still_image_size(\u0026self, footage: CHandle, width: i32, height: i32) -\u003e bool {\n\t\tif !self.item_is_still_image_footage_only(footage) {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet mut stream = CHandle::null();\n\t\tif unsafe { bridge::node::oaknode_footage_get_video_params(footage, 0, \u0026mut stream) } != 0 {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet mut w = 0;\n\t\tlet mut h = 0;\n\t\tunsafe {\n\t\t\tbridge::common::oakcommon_videoparams_get_width(stream, \u0026mut w);\n\t\t\tbridge::common::oakcommon_videoparams_get_height(stream, \u0026mut h);\n\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut stream);\n\t\t}\n\n\t\tw == width \u0026\u0026 h == height\n\t}\n}\n\nimpl TaskBehavior for ProjectImportTask {\n\t/// Import each filename via the oaknode footage/folder C ABI\n\t/// (`bridge::node`), collecting an undo command, imported footage, and\n\t/// per-file failures.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet mut command = unsafe { bridge::undo::oakundo_command_init_multi() };\n\t\tif command.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create import command\");\n\t\t\treturn Err(Error::Failed(\"Failed to create import command\".to_string()));\n\t\t}\n\t\tself.command = Some(command);\n\n\t\tlet mut counter = 0;\n\t\tlet mut entries = self.filenames.clone();\n\t\tself.import(task, self.folder, \u0026mut entries, \u0026mut counter, command);\n\n\t\tif task.is_cancelled() {\n\t\t\tif !command.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut command);\n\t\t\t\t}\n\t\t\t}\n\t\t\tself.command = None;\n\t\t\treturn Err(Error::Cancelled);\n\t\t}\n\t\tOk(())\n\t}\n}\n\n/// Count files recursively (directories recurse; anything else counts 1),\n/// mirroring `count_files_recursive` in import.cpp.\nfn count_files_recursive(paths: \u0026[String]) -\u003e usize {\n\tpaths\n\t\t.iter()\n\t\t.map(|p| {\n\t\t\tlet path = Path::new(p);\n\t\t\tif path.is_dir() {\n\t\t\t\tcount_dir_files(path)\n\t\t\t} else {\n\t\t\t\t1\n\t\t\t}\n\t\t})\n\t\t.sum()\n}\n\nfn count_dir_files(dir: \u0026Path) -\u003e usize {\n\tmatch std::fs::read_dir(dir) {\n\t\tOk(rd) =\u003e rd\n\t\t\t.filter_map(|e| e.ok())\n\t\t\t.map(|e| {\n\t\t\t\tlet p = e.path();\n\t\t\t\tif p.is_dir() {\n\t\t\t\t\tcount_dir_files(\u0026p)\n\t\t\t\t} else {\n\t\t\t\t\t1\n\t\t\t\t}\n\t\t\t})\n\t\t\t.sum(),\n\t\tErr(_) =\u003e 0,\n\t}\n}\n\n/// `std::filesystem::path(filename).filename()`, as a String.\nfn basename_of(path: \u0026str) -\u003e String {\n\tPath::new(path)\n\t\t.file_name()\n\t\t.map(|n| n.to_string_lossy().into_owned())\n\t\t.unwrap_or_default()\n}\n\n/// Two-stage read of the footage filename.\nfn footage_filename(footage: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_footage_filename(footage, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_footage_filename(footage, buf.as_mut_ptr(), needed);\n\t}\n\tcrate::project::load::buf_to_string(\u0026buf)\n}\n\n/// Substitute `number` into the trailing-digit field of an image-sequence\n/// filename (mirrors `oakcodec_decoder_transform_image_sequence_file_name`).\nfn transform_sequence_filename(filename: \u0026str, number: i64, digit_count: i32) -\u003e String {\n\tlet width = digit_count.max(0) as usize;\n\tmatch filename.rfind('.') {\n\t\tSome(dot) =\u003e {\n\t\t\t// The digits are the `width` chars immediately before the\n\t\t\t// extension; they are replaced by `number`.\n\t\t\tlet digits_start = dot.saturating_sub(width);\n\t\t\tlet prefix = \u0026filename[..digits_start];\n\t\t\tformat!(\"{prefix}{:0width$}{}\", number, \u0026filename[dot..], width = width)\n\t\t}\n\t\tNone =\u003e format!(\"{filename}{:0width$}\", number, width = width),\n\t}\n}\n\n/// Walk the index from `start` in the given direction while the transformed\n/// filename exists (mirrors `get_image_sequence_limit` in import.cpp).\nfn get_image_sequence_limit(start_fn: \u0026str, start: i64, up: bool, digit_count: i32) -\u003e i64 {\n\tlet mut current = start;\n\tloop {\n\t\tlet test_index = if up { current + 1 } else { current - 1 };\n\t\tlet test_filename = transform_sequence_filename(start_fn, test_index, digit_count);\n\t\tif !Path::new(\u0026test_filename).exists() {\n\t\t\tbreak;\n\t\t}\n\t\tcurrent = test_index;\n\t}\n\tcurrent\n}\n\n/// Parse a \"num/den\" frame-rate string.\nfn parse_rational(s: \u0026str) -\u003e Option\u003c(i32, i32)\u003e {\n\tlet mut parts = s.trim().split('/');\n\tlet num: i32 = parts.next()?.trim().parse().ok()?;\n\tlet den: i32 = parts.next()?.trim().parse().ok()?;\n\tSome((num, den))\n}\n\n/// Convenience used by the C ABI factory to compute the title.\npub(crate) fn import_title(paths: \u0026[String]) -\u003e String {\n\tlet count = 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ProjectLoadBaseTask` / `ProjectLoadTask`, mirroring\n//! `src/task/src/project/load/load.h`.\n//!\n//! Loads an `.oakproj` file into a new `OakNodeProject`. The base task holds\n//! the filename and produces the project on `take_project()`; `ProjectLoadTask`\n//! is the concrete (OTIO-less) loader.\n//!\n//! 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Returns `Err(Error::State)` if\n\t/// the task has not loaded a project yet.\n\tpub fn take_project(\u0026mut self) -\u003e Result\u003cCHandle\u003e {\n\t\tself.loaded_project.take().ok_or(Error::State)\n\t}\n\n\t/// Store the loaded project (called by `run`).\n\tpub(crate) fn store_project(\u0026mut self, project: CHandle) {\n\t\tself.loaded_project = Some(project);\n\t}\n}\n\nimpl TaskBehavior for ProjectLoadBaseTask {\n\t/// Load the project from `filename` via the oaknode serializer\n\t/// (`bridge::node`), storing the resulting `OakNodeProject`.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet mut project = unsafe { bridge::node::oaknode_project_init() };\n\t\tif project.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create project\");\n\t\t\treturn Err(Error::Failed(\"Failed to create project\".to_string()));\n\t\t}\n\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_project_set_filename(project, cstr(\u0026self.filename));\n\t\t}\n\n\t\tlet mut code = OAKNODE_SERIALIZER_RESULT_FILE_ERROR;\n\t\tlet mut details = [0i8; 512];\n\t\tlet result = unsafe {\n\t\t\tbridge::node::oaknode_serializer_load_from_file(\n\t\t\t\tproject,\n\t\t\t\tcstr(\u0026self.filename),\n\t\t\t\t\u0026mut code,\n\t\t\t\tdetails.as_mut_ptr(),\n\t\t\t\tdetails.len() as i32,\n\t\t\t)\n\t\t};\n\n\t\tlet mut success = false;\n\t\tmatch code {\n\t\t\tOAKNODE_SERIALIZER_RESULT_SUCCESS =\u003e success = true,\n\t\t\tOAKNODE_SERIALIZER_RESULT_PROJECT_TOO_OLD =\u003e {\n\t\t\t\ttask.set_error(\"This project is from a version of Oak Video Editor that is no longer supported in this version.\");\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_PROJECT_TOO_NEW =\u003e {\n\t\t\t\ttask.set_error(\"This project is from a newer version of Oak Video Editor and cannot be opened in this version.\");\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_UNKNOWN_VERSION =\u003e {\n\t\t\t\ttask.set_error(\"Failed to determine project version.\");\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_FILE_ERROR =\u003e {\n\t\t\t\ttask.set_error(\u0026format!(\"Failed to read file \\\"{}\\\" for reading.\", self.filename));\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_XML_ERROR =\u003e {\n\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\"Failed to read XML document. File may be corrupt. Error was: {}\",\n\t\t\t\t\tbuf_to_string(\u0026details)\n\t\t\t\t));\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_NO_DATA =\u003e {\n\t\t\t\ttask.set_error(\"Failed to find any data to parse.\");\n\t\t\t}\n\t\t\t_ =\u003e task.set_error(\"Unknown error.\"),\n\t\t}\n\n\t\tif result == 0 \u0026\u0026 success {\n\t\t\tself.store_project(project);\n\t\t\treturn Ok(());\n\t\t}\n\n\t\tif !project.ctx.is_null() {\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_project_free(\u0026mut project);\n\t\t\t}\n\t\t}\n\t\tErr(Error::Failed(\"Failed to load project\".to_string()))\n\t}\n}\n\n/// The concrete native project loader (no OTIO path).\npub struct ProjectLoadTask {\n\t/// The shared task base.\n\tpub base: ProjectLoadBaseTask,\n}\n\nimpl TaskBehavior for ProjectLoadTask {\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t\u003cProjectLoadBaseTask as TaskBehavior\u003e::run(\u0026mut self.base, task)\n\t}\n}\n\n/// Read a NUL-terminated char buffer into a String (lossy).\npub(crate) fn buf_to_string(buf: \u0026[i8]) -\u003e String {\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tunsafe { String::from_utf8_lossy(std::slice::from_raw_parts(buf.as_ptr() as *const u8, len)).into_owned() }\n}\n","traces":[{"line":53,"address":[],"length":0,"stats":{"Line":13}},{"line":55,"address":[],"length":0,"stats":{"Line":14}},{"line":56,"address":[],"length":0,"stats":{"Line":1}},{"line":58,"address":[],"length":0,"stats":{"Line":1}},{"line":67,"address":[],"length":0,"stats":{"Line":13}},{"line":77,"address":[],"length":0,"stats":{"Line":13}},{"line":78,"address":[],"length":0,"stats":{"Line":52}},{"line":82,"address":[],"length":0,"stats":{"Line":8}},{"line":83,"address":[],"length":0,"stats":{"Line":8}},{"line":90,"address":[],"length":0,"stats":{"Line":2}},{"line":91,"address":[],"length":0,"stats":{"Line":4}},{"line":92,"address":[],"length":0,"stats":{"Line":4}},{"line":93,"address":[],"length":0,"stats":{"Line":0}},{"line":94,"address":[],"length":0,"stats":{"Line":0}},{"line":98,"address":[],"length":0,"stats":{"Line":6}},{"line":101,"address":[],"length":0,"stats":{"Line":4}},{"line":102,"address":[],"length":0,"stats":{"Line":4}},{"line":105,"address":[],"length":0,"stats":{"Line":2}},{"line":106,"address":[],"length":0,"stats":{"Line":4}},{"line":107,"address":[],"length":0,"stats":{"Line":2}},{"line":108,"address":[],"length":0,"stats":{"Line":4}},{"line":109,"address":[],"length":0,"stats":{"Line":2}},{"line":113,"address":[],"length":0,"stats":{"Line":4}},{"line":114,"address":[],"length":0,"stats":{"Line":2}},{"line":115,"address":[],"length":0,"stats":{"Line":1}},{"line":116,"address":[],"length":0,"stats":{"Line":0}},{"line":117,"address":[],"length":0,"stats":{"Line":0}},{"line":119,"address":[],"length":0,"stats":{"Line":0}},{"line":120,"address":[],"length":0,"stats":{"Line":0}},{"line":122,"address":[],"length":0,"stats":{"Line":0}},{"line":123,"address":[],"length":0,"stats":{"Line":0}},{"line":125,"address":[],"length":0,"stats":{"Line":1}},{"line":126,"address":[],"length":0,"stats":{"Line":2}},{"line":128,"address":[],"length":0,"stats":{"Line":0}},{"line":129,"address":[],"length":0,"stats":{"Line":0}},{"line":130,"address":[],"length":0,"stats":{"Line":0}},{"line":131,"address":[],"length":0,"stats":{"Line":0}},{"line":134,"address":[],"length":0,"stats":{"Line":0}},{"line":135,"address":[],"length":0,"stats":{"Line":0}},{"line":137,"address":[],"length":0,"stats":{"Line":0}},{"line":140,"address":[],"length":0,"stats":{"Line":4}},{"line":141,"address":[],"length":0,"stats":{"Line":3}},{"line":142,"address":[],"length":0,"stats":{"Line":1}},{"line":145,"address":[],"length":0,"stats":{"Line":1}},{"line":147,"address":[],"length":0,"stats":{"Line":1}},{"line":150,"address":[],"length":0,"stats":{"Line":1}},{"line":161,"address":[],"length":0,"stats":{"Line":2}},{"line":162,"address":[],"length":0,"stats":{"Line":6}},{"line":167,"address":[],"length":0,"stats":{"Line":72}},{"line":168,"address":[],"length":0,"stats":{"Line":1867}},{"line":169,"address":[],"length":0,"stats":{"Line":288}}],"covered":36,"coverable":51},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","project","loadotio.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `LoadOTIOTask`, mirroring `src/task/src/project/loadotio/loadotio.h`.\n//!\n//! Loads an OpenTimelineIO (`.otio`) or FCPXML (`.fcpxml`) file into a new\n//! `OakNodeProject`, with a configurable import-confirmation callback. The\n//! format is dispatched from the filename extension (see\n//! [`crate::project::format`]); the document is parsed with the pure-Rust\n//! `oakotio` binding (see `README` decision #6) and the project is built\n//! through the oaknode / oaktimeline C ABIs exactly like the C++ task, so\n//! no OTIO or FCPXML type crosses the oaktask C ABI.\n//!\n//! CPP-PARITY: src/task/src/project/loadotio/loadotio.cpp\n\nuse std::collections::HashMap;\nuse std::path::Path;\nuse std::sync::Mutex;\n\nuse oakotio::Serializable;\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::project::format::InterchangeFormat;\nuse crate::project::load::ProjectLoadBaseTask;\nuse crate::task::{Task, TaskBehavior};\n\n/// Callback used to confirm whether the sequences of an OTIO document should\n/// be imported, mirroring `ImportConfirmFn` in loadotio.h (receives the\n/// sequence labels in order; return true to accept).\npub type ImportConfirmFn = Box\u003cdyn FnMut(\u0026[String]) -\u003e bool + Send\u003e;\n\n/// Global import-confirmation callback, mirroring the C++ static\n/// `LoadOTIOTask::confirm_callback_` (loadotio.h). When unset, everything is\n/// imported (the headless default).\nstatic CONFIRM_CALLBACK: Mutex\u003cOption\u003cImportConfirmFn\u003e\u003e = Mutex::new(None);\n\n/// Register (or clear, with `None`) the global import-confirmation callback.\n///\n/// CPP-PARITY: src/task/src/project/loadotio/loadotio.h\n/// (`LoadOTIOTask::set_import_confirm_callback`)\npub fn set_import_confirm_callback(cb: Option\u003cImportConfirmFn\u003e) {\n\t*CONFIRM_CALLBACK.lock().unwrap() = cb;\n}\n\n/// An OTIO project loader.\npub struct LoadOTIOTask {\n\t/// The base load task (owns the filename and yields the project).\n\tpub base: ProjectLoadBaseTask,\n}\n\nimpl LoadOTIOTask {\n\t/// Create an OTIO loader for the given base load task.\n\tpub fn new(base: ProjectLoadBaseTask) -\u003e LoadOTIOTask {\n\t\tLoadOTIOTask { base }\n\t}\n}\n\nimpl TaskBehavior for LoadOTIOTask {\n\t/// Load and parse the document (`oakotio`), then convert it into the\n\t/// project stored on the base task.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Dispatch the interchange format from the filename extension.\n\t\t// Format handling ends here: `parse_timelines` returns one\n\t\t// `oakotio::Timeline` per sequence whatever the source format, so\n\t\t// the project building below is shared between `.otio` and\n\t\t// `.fcpxml` (C++ parity for the track/clip/footage code).\n\t\tlet format = match InterchangeFormat::of(\u0026self.base.filename) {\n\t\t\tOk(f) =\u003e f,\n\t\t\tErr(e) =\u003e {\n\t\t\t\tif let Error::Failed(msg) = \u0026e {\n\t\t\t\t\ttask.set_error(msg);\n\t\t\t\t}\n\t\t\t\treturn Err(e);\n\t\t\t}\n\t\t};\n\n\t\tlet timelines = parse_timelines(task, \u0026self.base.filename, format)?;\n\n\t\tlet mut project = unsafe { bridge::node::oaknode_project_init() };\n\t\tif project.ctx.is_null() {\n\t\t\ttask.set_error(\"Failed to create project\");\n\t\t\treturn Err(Error::Failed(\"Failed to create project\".to_string()));\n\t\t}\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_project_initialize(project);\n\t\t\tbridge::node::oaknode_project_set_modified(project, 1);\n\t\t}\n\n\t\t// Keep track of imported footage\n\t\tlet mut imported_footage: HashMap\u003cString, CHandle\u003e = HashMap::new();\n\n\t\t// Generate a list of sequences with the same names as the timelines.\n\t\t// Assumes each timeline has a unique name.\n\t\tlet mut unnamed_sequence_count = 0;\n\t\tlet mut sequences: Vec\u003cCHandle\u003e = Vec::new();\n\n\t\t// Variables used for loading bar\n\t\tlet mut number_of_clips: f64 = 0.0;\n\n\t\tfor timeline in \u0026timelines {\n\t\t\tlet sequence = unsafe { bridge::node::oaknode_sequence_create() };\n\t\t\tif sequence.ctx.is_null() {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tlet label = if !timeline.name().is_empty() {\n\t\t\t\ttimeline.name().to_string()\n\t\t\t} else {\n\t\t\t\t// If the otio timeline does not provide a name, create a\n\t\t\t\t// default one here.\n\t\t\t\tunnamed_sequence_count += 1;\n\t\t\t\tformat!(\"Sequence {unnamed_sequence_count}\")\n\t\t\t};\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_node_set_label(bridge::node::oaknode_sequence_as_node(sequence), cstr(\u0026label));\n\t\t\t}\n\n\t\t\t// Set default params incase they aren't edited.\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_sequence_set_default_parameters(sequence);\n\t\t\t}\n\n\t\t\t// Get number of clips for loading bar\n\t\t\tfor track in timeline.tracks().children() {\n\t\t\t\tif let Some(otio_track) = track.as_track() {\n\t\t\t\t\tnumber_of_clips += otio_track.children().len() as f64;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tsequences.push(sequence);\n\t\t}\n\t\tif number_of_clips \u003c= 0.0 {\n\t\t\tnumber_of_clips = 1.0;\n\t\t}\n\n\t\t// Ask the user which sequences to import (facade callback; headless\n\t\t// default accepts everything).\n\t\tlet sequence_names: Vec\u003cString\u003e = sequences\n\t\t\t.iter()\n\t\t\t.map(|s| node_label_of(unsafe { bridge::node::oaknode_sequence_as_node(*s) }))\n\t\t\t.collect();\n\t\tlet mut confirm = CONFIRM_CALLBACK.lock().unwrap().take();\n\t\tlet accepted = match confirm.as_mut() {\n\t\t\tSome(cb) =\u003e cb(\u0026sequence_names),\n\t\t\tNone =\u003e true,\n\t\t};\n\n\t\tif !accepted {\n\t\t\t// Cancel to indicate to caller that this task did not complete\n\t\t\t// and to simply dispose of it. The project is never handed to the\n\t\t\t// base task, so free it here (the C++ base-task destructor does\n\t\t\t// the same).\n\t\t\ttask.cancel();\n\t\t\tfor sequence in \u0026mut sequences {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_sequence_free(sequence);\n\t\t\t\t}\n\t\t\t}\n\t\t\tif !project.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_project_free(\u0026mut project);\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn Ok(());\n\t\t}\n\n\t\tlet root_folder = unsafe { bridge::node::oaknode_project_root(project) };\n\t\tlet mut clips_done = 0.0f64;\n\n\t\tfor (timeline, sequence) in timelines.iter().zip(\u0026sequences) {\n\t\t\tlet sequence_node = unsafe { bridge::node::oaknode_sequence_as_node(*sequence) };\n\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_project_add_node(project, sequence_node);\n\t\t\t}\n\t\t\tlet mut add_seq = unsafe { bridge::node::oaknode_command_create_folder_add_child(root_folder, sequence_node) };\n\t\t\tif !add_seq.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::undo::oakundo_command_redo_now(add_seq);\n\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut add_seq);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Create a folder for this sequence's footage\n\t\t\tlet sequence_footage = unsafe { bridge::node::oaknode_folder_create(project) };\n\t\t\tif !sequence_footage.ctx.is_null() {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_node_set_label(\n\t\t\t\t\t\tbridge::node::oaknode_folder_as_node(sequence_footage),\n\t\t\t\t\t\tcstr(timeline.name()),\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t\tlet mut add_folder = unsafe {\n\t\t\t\t\tbridge::node::oaknode_command_create_folder_add_child(\n\t\t\t\t\t\troot_folder,\n\t\t\t\t\t\tbridge::node::oaknode_folder_as_node(sequence_footage),\n\t\t\t\t\t)\n\t\t\t\t};\n\t\t\t\tif !add_folder.ctx.is_null() {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(add_folder);\n\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut add_folder);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Iterate through tracks\n\t\t\tfor track_composable in timeline.tracks().children() {\n\t\t\t\tlet Some(otio_track) = track_composable.as_track() else {\n\t\t\t\t\tcontinue;\n\t\t\t\t};\n\n\t\t\t\t// Determine what kind of track it is\n\t\t\t\tlet track_type = match otio_track.kind() {\n\t\t\t\t\t\"Video\" =\u003e bridge::node::OAKNODE_TRACK_TYPE_VIDEO,\n\t\t\t\t\t\"Audio\" =\u003e bridge::node::OAKNODE_TRACK_TYPE_AUDIO,\n\t\t\t\t\tother =\u003e {\n\t\t\t\t\t\teprintln!(\"Found unknown track type: {other}\");\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\t\t\t\t};\n\n\t\t\t\t// Create a new track\n\t\t\t\tlet mut track_list = CHandle::null();\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_sequence_get_track_list(*sequence, track_type, \u0026mut track_list);\n\t\t\t\t}\n\t\t\t\tlet mut add_track = unsafe { bridge::timeline::oaktimeline_add_track_command(track_list) };\n\t\t\t\tif !add_track.ctx.is_null() {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(add_track);\n\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut add_track);\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tlet mut track = CHandle::null();\n\t\t\t\tlet mut count = 0;\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::node::oaknode_tracklist_get_track_count(track_list, \u0026mut count);\n\t\t\t\t}\n\t\t\t\tif count \u003e 0 {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::node::oaknode_tracklist_get_track_at(track_list, count - 1, \u0026mut track);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif track.ctx.is_null() {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\t// Get clips from track\n\t\t\t\tlet mut previous_block = CHandle::null();\n\t\t\t\tlet mut prev_block_transition = false;\n\n\t\t\t\tfor otio_block in otio_track.children() {\n\t\t\t\t\tif task.is_cancelled() {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\n\t\t\t\t\tlet block = match otio_block.schema_name() {\n\t\t\t\t\t\t\"Clip\" =\u003e unsafe { bridge::node::oaknode_block_clip_create() },\n\t\t\t\t\t\t\"Gap\" =\u003e unsafe { bridge::node::oaknode_block_gap_create() },\n\t\t\t\t\t\t\"Transition\" =\u003e {\n\t\t\t\t\t\t\t// Todo: Look into OTIO supported transitions and add\n\t\t\t\t\t\t\t// them to Oak.\n\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\tbridge::node::oaknode_block_transition_create(bridge::node::OAKNODE_TRANSITION_CROSS_DISSOLVE)\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t\tother =\u003e {\n\t\t\t\t\t\t\t// We don't know what this is yet, just create a gap\n\t\t\t\t\t\t\t// for now so that *something* is there.\n\t\t\t\t\t\t\teprintln!(\"Found unknown block type: {other}\");\n\t\t\t\t\t\t\tunsafe { bridge::node::oaknode_block_gap_create() }\n\t\t\t\t\t\t}\n\t\t\t\t\t};\n\t\t\t\t\tif block.ctx.is_null() {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tlet block_node = unsafe { bridge::node::oaknode_block_as_node(block) };\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::node::oaknode_project_add_node(project, block_node);\n\t\t\t\t\t\tbridge::node::oaknode_node_set_label(block_node, cstr(otio_block.name()));\n\t\t\t\t\t\tbridge::node::oaknode_track_append_block(track, block);\n\t\t\t\t\t}\n\n\t\t\t\t\tif otio_block.schema_name() == \"Clip\" || otio_block.schema_name() == \"Gap\" {\n\t\t\t\t\t\tif let Some(source_range) = otio_block.source_range() {\n\t\t\t\t\t\t\tlet start_seconds = source_range.start_time().to_seconds();\n\t\t\t\t\t\t\tlet duration_seconds = source_range.duration().to_seconds();\n\n\t\t\t\t\t\t\tlet start_time = oakcore_rs::Rational::from_double(start_seconds);\n\t\t\t\t\t\t\tlet duration = oakcore_rs::Rational::from_double(duration_seconds);\n\n\t\t\t\t\t\t\tif otio_block.schema_name() == \"Clip\" {\n\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\tbridge::node::oaknode_clip_set_media_in(\n\t\t\t\t\t\t\t\t\t\tblock,\n\t\t\t\t\t\t\t\t\t\tstart_time.numerator() as i32,\n\t\t\t\t\t\t\t\t\t\tstart_time.denominator() as i32,\n\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\tbridge::node::oaknode_block_set_length_and_media_out(\n\t\t\t\t\t\t\t\t\tblock,\n\t\t\t\t\t\t\t\t\tduration.numerator() as i32,\n\t\t\t\t\t\t\t\t\tduration.denominator() as i32,\n\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// If the previous block was a transition, connect the\n\t\t\t\t\t// current block to it.\n\t\t\t\t\tif prev_block_transition {\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(\n\t\t\t\t\t\t\t\tblock_node,\n\t\t\t\t\t\t\t\tbridge::node::oaknode_block_as_node(previous_block),\n\t\t\t\t\t\t\t\tcstr(bridge::node::OAKNODE_TRANSITION_IN_BLOCK_INPUT),\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t}\n\t\t\t\t\t\tprev_block_transition = false;\n\t\t\t\t\t}\n\n\t\t\t\t\tif let Some(otio_transition) = otio_block.as_transition() {\n\t\t\t\t\t\t// Set how far the transition eats into the previous\n\t\t\t\t\t\t// clip.\n\t\t\t\t\t\tlet in_offset = otio_transition.in_offset().to_rational();\n\t\t\t\t\t\tlet out_offset = otio_transition.out_offset().to_rational();\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::node::oaknode_transition_set_offsets_and_length(\n\t\t\t\t\t\t\t\tblock,\n\t\t\t\t\t\t\t\tin_offset.numerator() as i32,\n\t\t\t\t\t\t\t\tin_offset.denominator() as i32,\n\t\t\t\t\t\t\t\tout_offset.numerator() as i32,\n\t\t\t\t\t\t\t\tout_offset.denominator() as i32,\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif !previous_block.ctx.is_null() {\n\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(\n\t\t\t\t\t\t\t\t\tbridge::node::oaknode_block_as_node(previous_block),\n\t\t\t\t\t\t\t\t\tblock_node,\n\t\t\t\t\t\t\t\t\tcstr(bridge::node::OAKNODE_TRANSITION_OUT_BLOCK_INPUT),\n\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t\tprev_block_transition = true;\n\n\t\t\t\t\t\t// Position transition in its own context.\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tset_own_context_position(block_node);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tif otio_block.schema_name() == \"Gap\" {\n\t\t\t\t\t\t// Position gap in its own context.\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tset_own_context_position(block_node);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Update this after it's used but before any continue\n\t\t\t\t\t// statements.\n\t\t\t\t\tprevious_block = block;\n\n\t\t\t\t\tif otio_block.schema_name() == \"Clip\" {\n\t\t\t\t\t\tlet Some(otio_clip) = otio_block.as_clip() else {\n\t\t\t\t\t\t\tcontinue;\n\t\t\t\t\t\t};\n\t\t\t\t\t\tlet Some(media_reference) = otio_clip.media_reference() else {\n\t\t\t\t\t\t\tcontinue;\n\t\t\t\t\t\t};\n\t\t\t\t\t\tif let Some(external) = media_reference.as_external_reference() {\n\t\t\t\t\t\t\t// Link footage\n\t\t\t\t\t\t\tlet footage_url = external.target_url().to_string();\n\n\t\t\t\t\t\t\tlet probed_item = if let Some(existing) = imported_footage.get(\u0026footage_url) {\n\t\t\t\t\t\t\t\t*existing\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\tlet created = unsafe { bridge::node::oaknode_footage_create(project, cstr(\u0026footage_url)) };\n\t\t\t\t\t\t\t\tif !created.ctx.is_null() {\n\t\t\t\t\t\t\t\t\timported_footage.insert(footage_url.clone(), created);\n\n\t\t\t\t\t\t\t\t\tlet label = Path::new(\u0026footage_url)\n\t\t\t\t\t\t\t\t\t\t.file_name()\n\t\t\t\t\t\t\t\t\t\t.map(|n| n.to_string_lossy().into_owned())\n\t\t\t\t\t\t\t\t\t\t.unwrap_or_default();\n\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_set_label(\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(created),\n\t\t\t\t\t\t\t\t\t\t\tcstr(\u0026label),\n\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\tif !sequence_footage.ctx.is_null() {\n\t\t\t\t\t\t\t\t\t\tlet mut add_footage = unsafe {\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_command_create_folder_add_child(\n\t\t\t\t\t\t\t\t\t\t\t\tsequence_footage,\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(created),\n\t\t\t\t\t\t\t\t\t\t\t)\n\t\t\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t\t\t\tif !add_footage.ctx.is_null() {\n\t\t\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::undo::oakundo_command_redo_now(add_footage);\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::undo::oakundo_command_free(\u0026mut add_footage);\n\t\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tcreated\n\t\t\t\t\t\t\t};\n\n\t\t\t\t\t\t\tif !probed_item.ctx.is_null() {\n\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t// Position clip in its own context.\n\t\t\t\t\t\t\t\t\tset_own_context_position(block_node);\n\n\t\t\t\t\t\t\t\t\t// Position footage in its context.\n\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_set_context_position(\n\t\t\t\t\t\t\t\t\t\tblock_node,\n\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(probed_item),\n\t\t\t\t\t\t\t\t\t\t-2.0,\n\t\t\t\t\t\t\t\t\t\t0.0,\n\t\t\t\t\t\t\t\t\t\t0,\n\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tif track_type == bridge::node::OAKNODE_TRACK_TYPE_VIDEO {\n\t\t\t\t\t\t\t\t\tlet transform = unsafe {\n\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_factory_create_from_id(cstr(bridge::node::OAKNODE_TYPE_TRANSFORM))\n\t\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t\t\tif !transform.ctx.is_null() {\n\t\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_project_add_node(project, transform);\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(probed_item),\n\t\t\t\t\t\t\t\t\t\t\t\ttransform,\n\t\t\t\t\t\t\t\t\t\t\t\tcstr(\"tex_in\"),\n\t\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(transform, block_node, cstr(\"buffer_in\"));\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_set_context_position(block_node, transform, -1.0, 0.0, 0);\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\tlet volume =\n\t\t\t\t\t\t\t\t\t\tunsafe { bridge::node::oaknode_factory_create_from_id(cstr(bridge::node::OAKNODE_TYPE_VOLUME)) };\n\t\t\t\t\t\t\t\t\tif !volume.ctx.is_null() {\n\t\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_project_add_node(project, volume);\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(\n\t\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_footage_as_node(probed_item),\n\t\t\t\t\t\t\t\t\t\t\t\tvolume,\n\t\t\t\t\t\t\t\t\t\t\t\tcstr(\"samples_in\"),\n\t\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_connect(volume, block_node, cstr(\"buffer_in\"));\n\t\t\t\t\t\t\t\t\t\t\tbridge::node::oaknode_node_set_context_position(block_node, volume, -1.0, 0.0, 0);\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tclips_done += 1.0;\n\t\t\t\t\ttask.emit_progress(clips_done / number_of_clips);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tself.base.store_project(project);\n\t\tOk(())\n\t}\n}\n\n/// Set the node's position in its own context (the C++\n/// `set_own_context_position` helper in loadotio.cpp).\nunsafe fn set_own_context_position(node: CHandle) {\n\tunsafe {\n\t\tbridge::node::oaknode_node_set_context_position(node, node, 0.0, 0.0, 0);\n\t}\n}\n\n/// Parse the document into one `oakotio::Timeline` per sequence, dispatching\n/// on the filename extension:\n///\n/// - `.otio`: OpenTimelineIO JSON. A `Timeline` root yields one timeline, a\n/// `SerializableCollection` yields one timeline per `Timeline` child, and\n/// any other root is the C++ \"Unknown OpenTimelineIO root element\" error.\n/// - `.fcpxml`: FCPXML (`oakotio::fcpxml`), one timeline per `\u003csequence\u003e`.\n///\n/// Format handling ends here — the caller builds the project from the\n/// returned timelines regardless of the source format (C++ parity), so the\n/// track/clip/footage code never forks.\nfn parse_timelines(task: \u0026mut Task, filename: \u0026str, format: InterchangeFormat) -\u003e Result\u003cVec\u003coakotio::Timeline\u003e\u003e {\n\tmatch format {\n\t\tInterchangeFormat::OtioJson =\u003e {\n\t\t\tlet root = oakotio::from_json_file(filename).map_err(|e| {\n\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\"Failed to load OpenTimelineIO from file \\\"{}\\\" \\n\\nOpenTimelineIO Error:\\n\\n{}\",\n\t\t\t\t\tfilename, e\n\t\t\t\t));\n\t\t\t\tError::Failed(\"Failed to load OpenTimelineIO\".to_string())\n\t\t\t})?;\n\t\t\tmatch \u0026root {\n\t\t\t\tSerializable::SerializableCollection(collection) =\u003e Ok(collection\n\t\t\t\t\t.children()\n\t\t\t\t\t.iter()\n\t\t\t\t\t.filter_map(|child| child.as_timeline().cloned())\n\t\t\t\t\t.collect()),\n\t\t\t\tSerializable::Timeline(timeline) =\u003e Ok(vec![timeline.clone()]),\n\t\t\t\t_ =\u003e {\n\t\t\t\t\ttask.set_error(\"Unknown OpenTimelineIO root element\");\n\t\t\t\t\tErr(Error::Failed(\"Unknown OpenTimelineIO root element\".to_string()))\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tInterchangeFormat::Fcpxml =\u003e oakotio::from_fcpxml_file(filename).map_err(|e| {\n\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\"Failed to load FCPXML from file \\\"{}\\\" \\n\\nFCPXML Error:\\n\\n{}\",\n\t\t\t\tfilename, e\n\t\t\t));\n\t\t\tError::Failed(\"Failed to load FCPXML\".to_string())\n\t\t}),\n\t}\n}\n\n/// Two-stage read of a node's label (the C++ `oaknode_node_get_label` usage).\nfn node_label_of(node: CHandle) -\u003e 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ProjectSaveTask`, mirroring `src/task/src/project/save/save.h`.\n//!\n//! Serializes a borrowed `OakNodeProject` to an `.oakproj` file via the\n//! oaknode serializer. Optionally writes to an override filename and/or uses\n//! compression.\n//!\n//! CPP-PARITY: src/task/src/project/save/save.h\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::ffi::taskhandle::cstr;\nuse crate::handle::CHandle;\nuse crate::project::load::buf_to_string;\nuse crate::task::{Task, TaskBehavior};\n\n/// Serializer result codes (`include/node/serializer.h`).\nconst OAKNODE_SERIALIZER_RESULT_SUCCESS: i32 = 0;\nconst OAKNODE_SERIALIZER_RESULT_XML_ERROR: i32 = 5;\nconst OAKNODE_SERIALIZER_RESULT_FILE_ERROR: i32 = 4;\nconst OAKNODE_SERIALIZER_RESULT_OVERWRITE_ERROR: i32 = 6;\n\n/// A project-save task. Borrows its project and never takes ownership.\npub struct ProjectSaveTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Borrowed project to save (borrowed `OakNodeProject`).\n\tpub project: CHandle,\n\t/// Optional override filename; when empty the project's own filename is\n\t/// used.\n\tpub override_filename: Option\u003cString\u003e,\n\t/// Whether to compress the serialized output.\n\tpub use_compression: bool,\n}\n\nimpl ProjectSaveTask {\n\t/// Set the output filename override.\n\tpub fn set_override_filename(\u0026mut self, filename: \u0026str) {\n\t\tself.override_filename = Some(filename.to_string());\n\t}\n}\n\nimpl TaskBehavior for ProjectSaveTask {\n\t/// Serialize the project via the oaknode serializer (`bridge::node`) to\n\t/// the resolved filename.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet using_filename = match \u0026self.override_filename {\n\t\t\tSome(name) =\u003e name.clone(),\n\t\t\tNone =\u003e project_filename(self.project),\n\t\t};\n\n\t\tif using_filename.is_empty() {\n\t\t\ttask.set_error(\"Project has no filename to save to.\");\n\t\t\treturn Err(Error::Failed(\"Project has no filename to save to.\".to_string()));\n\t\t}\n\n\t\tlet mut code = OAKNODE_SERIALIZER_RESULT_FILE_ERROR;\n\t\tlet mut details = [0i8; 512];\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_serializer_save_to_file(\n\t\t\t\tself.project,\n\t\t\t\tcstr(\u0026using_filename),\n\t\t\t\tif self.use_compression { 1 } else { 0 },\n\t\t\t\t\u0026mut code,\n\t\t\t\tdetails.as_mut_ptr(),\n\t\t\t\tdetails.len() as i32,\n\t\t\t);\n\t\t}\n\n\t\tlet mut success = false;\n\t\tmatch code {\n\t\t\tOAKNODE_SERIALIZER_RESULT_SUCCESS =\u003e success = true,\n\t\t\tOAKNODE_SERIALIZER_RESULT_XML_ERROR =\u003e {\n\t\t\t\ttask.set_error(\"Failed to write XML data.\");\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_FILE_ERROR =\u003e {\n\t\t\t\ttask.set_error(\u0026format!(\"Failed to open file for writing: {}\", buf_to_string(\u0026details)));\n\t\t\t}\n\t\t\tOAKNODE_SERIALIZER_RESULT_OVERWRITE_ERROR =\u003e {\n\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\"Failed to overwrite \\\"{}\\\". Project has been saved as \\\"{}\\\" instead.\",\n\t\t\t\t\tusing_filename,\n\t\t\t\t\tbuf_to_string(\u0026details)\n\t\t\t\t));\n\t\t\t\tsuccess = true;\n\t\t\t}\n\t\t\t_ =\u003e task.set_error(\"Unknown error.\"),\n\t\t}\n\n\t\tif success {\n\t\t\tOk(())\n\t\t} else {\n\t\t\tErr(Error::Failed(\"Failed to save project\".to_string()))\n\t\t}\n\t}\n}\n\n/// Two-stage read of the project's own filename (empty when unset).\npub(crate) fn project_filename(project: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_project_filename(project, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_project_filename(project, buf.as_mut_ptr(), needed);\n\t}\n\tbuf_to_string(\u0026buf)\n}\n","traces":[{"line":53,"address":[],"length":0,"stats":{"Line":3}},{"line":54,"address":[],"length":0,"stats":{"Line":6}},{"line":61,"address":[],"length":0,"stats":{"Line":9}},{"line":62,"address":[],"length":0,"stats":{"Line":18}},{"line":63,"address":[],"length":0,"stats":{"Line":6}},{"line":64,"address":[],"length":0,"stats":{"Line":14}},{"line":67,"address":[],"length":0,"stats":{"Line":18}},{"line":68,"address":[],"length":0,"stats":{"Line":3}},{"line":69,"address":[],"length":0,"stats":{"Line":1}},{"line":72,"address":[],"length":0,"stats":{"Line":16}},{"line":73,"address":[],"length":0,"stats":{"Line":16}},{"line":76,"address":[],"length":0,"stats":{"Line":8}},{"line":77,"address":[],"length":0,"stats":{"Line":16}},{"line":78,"address":[],"length":0,"stats":{"Line":16}},{"line":79,"address":[],"length":0,"stats":{"Line":8}},{"line":80,"address":[],"length":0,"stats":{"Line":16}},{"line":81,"address":[],"length":0,"stats":{"Line":8}},{"line":85,"address":[],"length":0,"stats":{"Line":16}},{"line":86,"address":[],"length":0,"stats":{"Line":8}},{"line":87,"address":[],"length":0,"stats":{"Line":8}},{"line":88,"address":[],"length":0,"stats":{"Line":0}},{"line":89,"address":[],"length":0,"stats":{"Line":0}},{"line":91,"address":[],"length":0,"stats":{"Line":0}},{"line":92,"address":[],"length":0,"stats":{"Line":0}},{"line":94,"address":[],"length":0,"stats":{"Line":0}},{"line":95,"address":[],"length":0,"stats":{"Line":0}},{"line":96,"address":[],"length":0,"stats":{"Line":0}},{"line":97,"address":[],"length":0,"stats":{"Line":0}},{"line":98,"address":[],"length":0,"stats":{"Line":0}},{"line":100,"address":[],"length":0,"stats":{"Line":0}},{"line":102,"address":[],"length":0,"stats":{"Line":0}},{"line":105,"address":[],"length":0,"stats":{"Line":8}},{"line":106,"address":[],"length":0,"stats":{"Line":8}},{"line":108,"address":[],"length":0,"stats":{"Line":0}},{"line":114,"address":[],"length":0,"stats":{"Line":22}},{"line":115,"address":[],"length":0,"stats":{"Line":88}},{"line":116,"address":[],"length":0,"stats":{"Line":22}},{"line":117,"address":[],"length":0,"stats":{"Line":0}},{"line":119,"address":[],"length":0,"stats":{"Line":66}},{"line":121,"address":[],"length":0,"stats":{"Line":88}},{"line":123,"address":[],"length":0,"stats":{"Line":44}}],"covered":28,"coverable":41},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","project","saveotio.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `SaveOTIOTask`, mirroring `src/task/src/project/saveotio/saveotio.h`.\n//!\n//! Serializes a borrowed `OakNodeProject` to an OpenTimelineIO (`.otio`) or\n//! FCPXML (`.fcpxml`) file through the pure-Rust `oakotio` binding (see\n//! `README` decision #6): the project's sequences become `OTIO::Timeline`s\n//! (`serialize_timeline` / `serialize_track` / `serialize_track_list`),\n//! exactly like the C++ `serialize_*` helpers. The format is dispatched\n//! from the filename extension (see [`crate::project::format`]) at the\n//! final write only — the serialization itself is shared. No OTIO or\n//! FCPXML type crosses the oaktask C ABI.\n//!\n//! CPP-PARITY: src/task/src/project/saveotio/saveotio.cpp\n\nuse oakcore_rs::Rational;\nuse oakotio::{\n\tClip, Composable, ExternalReference, Gap, MediaReference, RationalTime, Serializable, SerializableCollection, TimeRange,\n\tTimeline, Track, Transition,\n};\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\nuse crate::project::format::InterchangeFormat;\nuse crate::project::load::buf_to_string;\nuse crate::task::{Task, TaskBehavior};\n\n/// `Rational(INT_MIN)` — the initial \"no track yet\" maximum length\n/// (`RATIONAL_MIN` in saveotio.cpp).\nfn rational_min() -\u003e Rational {\n\tRational::new(-2147483647, 1)\n}\n\n/// An OTIO project-save task. Borrows its project.\npub struct SaveOTIOTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Borrowed project to save (borrowed `OakNodeProject`).\n\tpub project: CHandle,\n\t/// Output OTIO filename.\n\tpub filename: String,\n}\n\nimpl SaveOTIOTask {\n\t/// Serialize one sequence into an `OTIO::Timeline`; `None` when the\n\t/// sequence has no usable frame rate or a track fails to serialize.\n\t///\n\t/// CPP-PARITY: saveotio.cpp (SaveOTIOTask::serialize_timeline)\n\tfn serialize_timeline(sequence: CHandle) -\u003e Option\u003cTimeline\u003e {\n\t\tlet mut otio_timeline = Timeline::new(node_label_of(unsafe { bridge::node::oaknode_sequence_as_node(sequence) }));\n\n\t\tlet mut rate = 0.0f64;\n\t\t{\n\t\t\tlet mut num = 0;\n\t\t\tlet mut den = 1;\n\t\t\tlet mut vp = CHandle::null();\n\t\t\tif unsafe { bridge::node::oaknode_sequence_get_video_params(sequence, 0, \u0026mut vp) } == 0 {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::common::oakcommon_videoparams_get_frame_rate(vp, \u0026mut num, \u0026mut den);\n\t\t\t\t}\n\t\t\t\tif den != 0 {\n\t\t\t\t\trate = num as f64 / den as f64;\n\t\t\t\t}\n\t\t\t\tif !vp.ctx.is_null() {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut vp);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif rate.is_nan() || rate \u003c= 0.0 {\n\t\t\treturn None;\n\t\t}\n\n\t\tlet mut video_list = CHandle::null();\n\t\tlet mut audio_list = CHandle::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_sequence_get_track_list(sequence, bridge::node::OAKNODE_TRACK_TYPE_VIDEO, \u0026mut video_list);\n\t\t\tbridge::node::oaknode_sequence_get_track_list(sequence, bridge::node::OAKNODE_TRACK_TYPE_AUDIO, \u0026mut audio_list);\n\t\t}\n\n\t\tif !Self::serialize_track_list(video_list, \u0026mut otio_timeline, rate)\n\t\t\t|| !Self::serialize_track_list(audio_list, \u0026mut otio_timeline, rate)\n\t\t{\n\t\t\treturn None;\n\t\t}\n\n\t\tSome(otio_timeline)\n\t}\n\n\t/// Serialize all tracks of one track list (video or audio) into the\n\t/// timeline. Each track is padded to the list's maximum track length.\n\t///\n\t/// CPP-PARITY: saveotio.cpp (SaveOTIOTask::serialize_track_list)\n\tfn serialize_track_list(list: CHandle, otio_timeline: \u0026mut Timeline, sequence_rate: f64) -\u003e bool {\n\t\tif list.ctx.is_null() {\n\t\t\treturn true;\n\t\t}\n\n\t\tlet mut max_track_length = rational_min();\n\n\t\tlet mut track_count = 0;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_tracklist_get_track_count(list, \u0026mut track_count);\n\t\t}\n\n\t\tfor i in 0..track_count {\n\t\t\tlet mut track = CHandle::null();\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_tracklist_get_track_at(list, i, \u0026mut track);\n\t\t\t}\n\t\t\tif !track.ctx.is_null() {\n\t\t\t\tlet length = track_length_of(track);\n\t\t\t\tif length \u003e max_track_length {\n\t\t\t\t\tmax_track_length = length;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor i in 0..track_count {\n\t\t\tlet mut track = CHandle::null();\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_tracklist_get_track_at(list, i, \u0026mut track);\n\t\t\t}\n\t\t\tif track.ctx.is_null() {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tlet Some(otio_track) = Self::serialize_track(track, sequence_rate, max_track_length) else {\n\t\t\t\treturn false;\n\t\t\t};\n\n\t\t\totio_timeline.tracks_mut().append_child(Composable::Track(otio_track));\n\t\t}\n\n\t\ttrue\n\t}\n\n\t/// Serialize one track: a `Track` whose kind matches the native track\n\t/// type, one OTIO block per native block, plus a trailing `Gap` when the\n\t/// track is shorter than `max_track_length`.\n\t///\n\t/// CPP-PARITY: saveotio.cpp (SaveOTIOTask::serialize_track)\n\tfn serialize_track(track: CHandle, sequence_rate: f64, max_track_length: Rational) -\u003e Option\u003cTrack\u003e {\n\t\tlet mut track_type = bridge::node::OAKNODE_TRACK_TYPE_NONE;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_track_get_type(track, \u0026mut track_type);\n\t\t}\n\n\t\tlet kind = match track_type {\n\t\t\tbridge::node::OAKNODE_TRACK_TYPE_VIDEO =\u003e \"Video\",\n\t\t\tbridge::node::OAKNODE_TRACK_TYPE_AUDIO =\u003e \"Audio\",\n\t\t\tother =\u003e {\n\t\t\t\teprintln!(\"Don't know OTIO track kind for native type {other}\");\n\t\t\t\treturn None;\n\t\t\t}\n\t\t};\n\t\tlet mut otio_track = Track::new(kind);\n\n\t\tlet mut block_count = 0;\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_track_get_block_count(track, \u0026mut block_count);\n\t\t}\n\n\t\tfor i in 0..block_count {\n\t\t\tlet mut block = CHandle::null();\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_track_get_block_at(track, i, \u0026mut block);\n\t\t\t}\n\t\t\tif block.ctx.is_null() {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tlet mut kind = bridge::node::OAKNODE_BLOCK_OTHER;\n\t\t\tunsafe {\n\t\t\t\tbridge::node::oaknode_block_get_kind(block, \u0026mut kind);\n\t\t\t}\n\n\t\t\tlet otio_block: Option\u003cComposable\u003e = match kind {\n\t\t\t\tbridge::node::OAKNODE_BLOCK_CLIP =\u003e {\n\t\t\t\t\tlet mut otio_clip = Clip::new(node_label_of(unsafe { bridge::node::oaknode_block_as_node(block) }));\n\n\t\t\t\t\totio_clip.set_source_range(TimeRange::new(\n\t\t\t\t\t\tRationalTime::from_rational(block_in_of(block), sequence_rate),\n\t\t\t\t\t\tRationalTime::from_rational(block_length_of(block), sequence_rate),\n\t\t\t\t\t));\n\n\t\t\t\t\tlet mut media = CHandle::null();\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::node::oaknode_node_find_input_footage(bridge::node::oaknode_block_as_node(block), \u0026mut media);\n\t\t\t\t\t}\n\t\t\t\t\tif !media.ctx.is_null() {\n\t\t\t\t\t\tlet available_range = if track_type == bridge::node::OAKNODE_TRACK_TYPE_VIDEO {\n\t\t\t\t\t\t\t// OTIO ExternalReference uses the source clips\n\t\t\t\t\t\t\t// frame rate (or sample rate) as opposed to the\n\t\t\t\t\t\t\t// sequences rate.\n\t\t\t\t\t\t\tlet mut source_frame_rate = 0.0f64;\n\t\t\t\t\t\t\tlet mut duration = 0.0f64;\n\t\t\t\t\t\t\tlet mut num = 0;\n\t\t\t\t\t\t\tlet mut den = 1;\n\t\t\t\t\t\t\tlet mut vp = CHandle::null();\n\t\t\t\t\t\t\tif unsafe { bridge::node::oaknode_footage_get_video_params(media, 0, \u0026mut vp) } == 0 {\n\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_get_frame_rate(vp, \u0026mut num, \u0026mut den);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tif den != 0 {\n\t\t\t\t\t\t\t\t\tsource_frame_rate = num as f64 / den as f64;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tlet mut dur = 0i64;\n\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_get_duration(vp, \u0026mut dur);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tduration = dur as f64;\n\t\t\t\t\t\t\t\tif !vp.ctx.is_null() {\n\t\t\t\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\t\t\t\tbridge::common::oakcommon_videoparams_free(\u0026mut vp);\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tTimeRange::new(\n\t\t\t\t\t\t\t\tRationalTime::new(0.0, source_frame_rate),\n\t\t\t\t\t\t\t\tRationalTime::new(duration, source_frame_rate),\n\t\t\t\t\t\t\t)\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tTimeRange::new(RationalTime::new(0.0, 48000.0), RationalTime::new(0.0, 48000.0))\n\t\t\t\t\t\t};\n\n\t\t\t\t\t\tlet media_url = footage_filename(media);\n\t\t\t\t\t\tif !media_url.is_empty() {\n\t\t\t\t\t\t\totio_clip.set_media_reference(MediaReference::ExternalReference(ExternalReference::new(\n\t\t\t\t\t\t\t\tmedia_url,\n\t\t\t\t\t\t\t\tSome(available_range),\n\t\t\t\t\t\t\t)));\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tSome(Composable::Clip(otio_clip))\n\t\t\t\t}\n\t\t\t\tbridge::node::OAKNODE_BLOCK_GAP =\u003e Some(Composable::Gap(Gap::new(\n\t\t\t\t\tTimeRange::new(\n\t\t\t\t\t\tRationalTime::from_rational(block_in_of(block), 24.0),\n\t\t\t\t\t\tRationalTime::from_rational(block_length_of(block), 24.0),\n\t\t\t\t\t),\n\t\t\t\t\tnode_label_of(unsafe { bridge::node::oaknode_block_as_node(block) }),\n\t\t\t\t))),\n\t\t\t\tbridge::node::OAKNODE_BLOCK_TRANSITION =\u003e {\n\t\t\t\t\tlet mut otio_transition = Transition::new(node_label_of(unsafe { bridge::node::oaknode_block_as_node(block) }));\n\n\t\t\t\t\tlet (n, d) = transition_offset_of(block, true);\n\t\t\t\t\totio_transition.set_in_offset(RationalTime::from_rational(Rational::new(n as i64, d as i64), 24.0));\n\t\t\t\t\tlet (n, d) = transition_offset_of(block, false);\n\t\t\t\t\totio_transition.set_out_offset(RationalTime::from_rational(Rational::new(n as i64, d as i64), 24.0));\n\n\t\t\t\t\tSome(Composable::Transition(otio_transition))\n\t\t\t\t}\n\t\t\t\t_ =\u003e None,\n\t\t\t};\n\n\t\t\tlet Some(otio_block) = otio_block else {\n\t\t\t\t// We shouldn't ever get here, but catch without crashing if\n\t\t\t\t// we ever do.\n\t\t\t\treturn None;\n\t\t\t};\n\n\t\t\totio_track.append_child(otio_block);\n\t\t}\n\n\t\t// All OTIO tracks must have the same duration so we add a Gap to\n\t\t// fill the remaining time.\n\t\tlet duration = track_duration(\u0026otio_track);\n\t\tlet duration_seconds = duration.clone().to_seconds();\n\t\tif duration_seconds \u003c max_track_length.to_f64() {\n\t\t\tlet time_left = max_track_length.to_f64() - duration_seconds;\n\n\t\t\tlet gap = Gap::new(TimeRange::new(duration, RationalTime::new(time_left, 1.0)), \"\");\n\t\t\totio_track.append_child(Composable::Gap(gap));\n\t\t}\n\n\t\tSome(otio_track)\n\t}\n}\n\nimpl TaskBehavior for SaveOTIOTask {\n\t/// Serialize the project to OTIO/FCPXML via `oakotio` and write the file.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\t// Dispatch the interchange format from the filename extension.\n\t\t// Format handling ends at the write below — the serialization\n\t\t// produces `oakotio::Timeline`s and is shared between `.otio` and\n\t\t// `.fcpxml` (C++ parity for the serialize_* helpers).\n\t\tlet format = match InterchangeFormat::of(\u0026self.filename) {\n\t\t\tOk(f) =\u003e f,\n\t\t\tErr(e) =\u003e {\n\t\t\t\tif let Error::Failed(msg) = \u0026e {\n\t\t\t\t\ttask.set_error(msg);\n\t\t\t\t}\n\t\t\t\treturn Err(e);\n\t\t\t}\n\t\t};\n\n\t\t// Collect sequences from the root folder (non-recursive, matching\n\t\t// the original list_children_of_type behavior closely enough for\n\t\t// OTIO).\n\t\tlet root = unsafe { bridge::node::oaknode_project_root(self.project) };\n\t\tif root.ctx.is_null() {\n\t\t\ttask.set_error(\"Project contains no sequences to export.\");\n\t\t\treturn Err(Error::Failed(\"Project contains no sequences to export.\".to_string()));\n\t\t}\n\n\t\tlet mut sequences: Vec\u003cCHandle\u003e = Vec::new();\n\t\tlet child_count = unsafe { bridge::node::oaknode_folder_child_count(root) };\n\t\tfor i in 0..child_count {\n\t\t\tlet child = unsafe { bridge::node::oaknode_folder_child_at(root, i) };\n\t\t\tif child.ctx.is_null() {\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tif node_id_of(child) == bridge::node::OAKNODE_TYPE_SEQUENCE {\n\t\t\t\t// Borrowed sequence alias of the child node handle (all\n\t\t\t\t// oaknode handles share the same box layout).\n\t\t\t\tsequences.push(child);\n\t\t\t}\n\t\t}\n\n\t\tif sequences.is_empty() {\n\t\t\ttask.set_error(\"Project contains no sequences to export.\");\n\t\t\treturn Err(Error::Failed(\"Project contains no sequences to export.\".to_string()));\n\t\t}\n\n\t\tlet mut serialized: Vec\u003cTimeline\u003e = Vec::with_capacity(sequences.len());\n\t\tfor sequence in \u0026sequences {\n\t\t\tmatch Self::serialize_timeline(*sequence) {\n\t\t\t\tSome(timeline) =\u003e serialized.push(timeline),\n\t\t\t\tNone =\u003e {\n\t\t\t\t\ttask.set_error(\u0026format!(\n\t\t\t\t\t\t\"Failed to serialize sequence \\\"{}\\\"\",\n\t\t\t\t\t\tnode_label_of(unsafe { bridge::node::oaknode_sequence_as_node(*sequence) })\n\t\t\t\t\t));\n\t\t\t\t\treturn Err(Error::Failed(\"Failed to serialize sequence\".to_string()));\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Write the serialized timelines, dispatching on the format: OTIO\n\t\t// JSON writes a `Timeline` root for one sequence or a\n\t\t// `SerializableCollection` for several; FCPXML writes all timelines\n\t\t// into one document (one `\u003cproject\u003e` per timeline).\n\t\tlet result: std::result::Result\u003c(), String\u003e = match format {\n\t\t\tInterchangeFormat::OtioJson =\u003e {\n\t\t\t\tif serialized.len() == 1 {\n\t\t\t\t\tserialized[0].to_json_file(\u0026self.filename).map_err(|e| e.to_string())\n\t\t\t\t} else {\n\t\t\t\t\t// Serialize all into a SerializableCollection.\n\t\t\t\t\tlet collection = SerializableCollection::new(\n\t\t\t\t\t\t\"Sequences\",\n\t\t\t\t\t\tserialized.into_iter().map(Serializable::Timeline).collect(),\n\t\t\t\t\t);\n\t\t\t\t\tSerializable::SerializableCollection(collection)\n\t\t\t\t\t\t.to_json_file(\u0026self.filename)\n\t\t\t\t\t\t.map_err(|e| e.to_string())\n\t\t\t\t}\n\t\t\t}\n\t\t\tInterchangeFormat::Fcpxml =\u003e oakotio::to_fcpxml_file(\u0026serialized, \u0026self.filename).map_err(|e| e.to_string()),\n\t\t};\n\n\t\tresult.map_err(|e| {\n\t\t\tlet (label, what) = match format {\n\t\t\t\tInterchangeFormat::OtioJson =\u003e (\"Failed to save OpenTimelineIO to file\", \"Failed to save OpenTimelineIO\"),\n\t\t\t\tInterchangeFormat::Fcpxml =\u003e (\"Failed to save FCPXML to file\", \"Failed to save FCPXML\"),\n\t\t\t};\n\t\t\ttask.set_error(\u0026format!(\"{label} \\\"{}\\\": {e}\", self.filename));\n\t\t\tError::Failed(what.to_string())\n\t\t})\n\t}\n}\n\n/// Two-stage read of a node's label.\nfn node_label_of(node: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_node_get_label(node, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_node_get_label(node, buf.as_mut_ptr(), needed);\n\t}\n\tbuf_to_string(\u0026buf)\n}\n\n/// Two-stage read of a node's type id.\nfn node_id_of(node: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_node_get_id(node, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_node_get_id(node, buf.as_mut_ptr(), needed);\n\t}\n\tbuf_to_string(\u0026buf)\n}\n\n/// The block's in point as a `Rational` (default 0/1 when unset).\nfn block_in_of(block: CHandle) -\u003e Rational {\n\tlet mut n = 0;\n\tlet mut d = 1;\n\tunsafe {\n\t\tbridge::node::oaknode_block_get_in(block, \u0026mut n, \u0026mut d);\n\t}\n\tRational::new(n as i64, d as i64)\n}\n\n/// The block's length as a `Rational` (default 0/1 when unset).\nfn block_length_of(block: CHandle) -\u003e Rational {\n\tlet mut n = 0;\n\tlet mut d = 1;\n\tunsafe {\n\t\tbridge::node::oaknode_block_get_length(block, \u0026mut n, \u0026mut d);\n\t}\n\tRational::new(n as i64, d as i64)\n}\n\n/// The track's total length as a `Rational` (default 0/1 when unset).\nfn track_length_of(track: CHandle) -\u003e Rational {\n\tlet mut n = 0;\n\tlet mut d = 1;\n\tunsafe {\n\t\tbridge::node::oaknode_track_get_length(track, \u0026mut n, \u0026mut d);\n\t}\n\tRational::new(n as i64, d as i64)\n}\n\n/// A transition's in (`in_offset == true`) or out offset as a `Rational`.\nfn transition_offset_of(block: CHandle, in_offset: bool) -\u003e (i32, i32) {\n\tlet mut n = 0;\n\tlet mut d = 1;\n\tif in_offset {\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_transition_get_in_offset(block, \u0026mut n, \u0026mut d);\n\t\t}\n\t} else {\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_transition_get_out_offset(block, \u0026mut n, \u0026mut d);\n\t\t}\n\t}\n\t(n, d)\n}\n\n/// Two-stage read of a footage's filename (empty when unset).\nfn footage_filename(footage: CHandle) -\u003e String {\n\tlet needed = unsafe { bridge::node::oaknode_footage_filename(footage, std::ptr::null_mut(), 0) };\n\tif needed \u003c= 0 {\n\t\treturn String::new();\n\t}\n\tlet mut buf = vec![0i8; needed as usize];\n\tunsafe {\n\t\tbridge::node::oaknode_footage_filename(footage, buf.as_mut_ptr(), needed);\n\t}\n\tbuf_to_string(\u0026buf)\n}\n\n/// The serialized track's duration as an `OTIO::RationalTime` — the sum of\n/// its children's source-range durations, keeping the first child's rate\n/// (the C++ `otio_track-\u003eduration(\u0026es)` result for contiguous children).\nfn track_duration(track: \u0026Track) -\u003e RationalTime {\n\tlet mut acc: Option\u003cRationalTime\u003e = None;\n\tfor child in track.children() {\n\t\tlet duration = match child.as_clip().and_then(|c| c.source_range()).map(|r| r.duration())\n\t\t\t.or_else(|| child.as_gap().and_then(|g| g.source_range()).map(|r| r.duration()))\n\t\t{\n\t\t\tSome(d) =\u003e d,\n\t\t\t// Transitions occupy no time.\n\t\t\tNone =\u003e RationalTime::new(0.0, 1.0),\n\t\t};\n\t\tmatch acc {\n\t\t\tNone =\u003e acc = Some(duration),\n\t\t\tSome(a) =\u003e {\n\t\t\t\tlet rate = a.rate();\n\t\t\t\tlet value = a.value() + duration.rescaled_to(rate).value();\n\t\t\t\tacc = Some(RationalTime::new(value, 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! Project load/save/import tasks, mirroring `src/task/src/project/*`.\n//!\n//! These tasks move data across the oaknode C ABI: they borrow node handles\n//! while running and take ownership only on the `take_*` accessors\n//! (architectural decision #5 in README.md).\n\npub mod format;\npub mod import;\npub mod load;\npub mod loadotio;\npub mod save;\npub mod saveotio;\n","traces":[],"covered":0,"coverable":0},{"path":["/","Users","sunyu","Projects","oak","src","task","rust","src","proxy.rs"],"content":"// Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `ProxyTask`, mirroring `src/task/src/proxy/proxy.h`.\n//!\n//! Transcodes a video stream to a proxy via an external `ffmpeg` process\n//! (oakcodec kind `OAKCODEC_TASK_PROXY`). The two pure functions\n//! [`ProxyTask::build_arguments`] and [`ProxyTask::parse_progress`] are\n//! parity/golden candidates (see tests/parity_test.rs).\n//!\n//! CPP-PARITY: src/task/src/proxy/proxy.h\n\nuse std::io::{BufRead, BufReader};\nuse std::process::{Command, Stdio};\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\nuse crate::task::{Task, TaskBehavior};\n\n/// The proxy parameters, mirroring `oakcodec_proxy_params` in\n/// `include/codec/proxy.h` (kept as plain fields so no oakcodec handle is\n/// needed to build arguments).\npub struct ProxyParams {\n\t/// Target width (0 = unspecified/divider-based).\n\tpub width: i32,\n\t/// Target height (0 = unspecified/divider-based).\n\tpub height: i32,\n\t/// Resolution divider.\n\tpub divider: i32,\n\t/// Proxy format version.\n\tpub version: i32,\n\t/// CRF for the proxy encode.\n\tpub crf: i32,\n\t/// Whether audio is included in the proxy.\n\tpub include_audio: bool,\n\t/// Output container extension.\n\tpub extension: String,\n\t/// ffmpeg preset name.\n\tpub preset: String,\n}\n\n/// A proxy transcode task: runs `ffmpeg` with arguments from\n/// [`ProxyTask::build_arguments`], parsing progress lines via\n/// [`ProxyTask::parse_progress`].\npub struct ProxyTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Source media filename.\n\tpub source_filename: String,\n\t/// Target stream index.\n\tpub stream_index: i32,\n\t/// Proxy parameters.\n\tpub params: ProxyParams,\n\t/// Output proxy filename.\n\tpub output_filename: String,\n\t/// Total media duration in seconds (for progress scaling).\n\tduration_seconds: f64,\n}\n\nimpl ProxyTask {\n\t/// Build a proxy task from an oakcodec request and proxy params,\n\t/// mirroring the C++ constructor (divider-based requests take the source\n\t/// fraction).\n\tpub fn new(request: \u0026bridge::codec::OakCodecTaskRequest, params: ProxyParams) -\u003e ProxyTask {\n\t\tlet source = unsafe { crate::ffi::taskhandle::cstr_to_string(request.input_filename) };\n\t\tlet output = unsafe { crate::ffi::taskhandle::cstr_to_string(request.output_filename) };\n\t\tlet mut params = params;\n\t\tif request.proxy_width \u003e 0 \u0026\u0026 request.proxy_height \u003e 0 {\n\t\t\tparams.width = request.proxy_width;\n\t\t\tparams.height = request.proxy_height;\n\t\t\tparams.divider = 1;\n\t\t}\n\t\tlet title = format!(\"Generating Proxy {}:{}\", source, request.stream_index);\n\t\tProxyTask {\n\t\t\tbase: Task::new(\u0026title, CHandle::null()),\n\t\t\tsource_filename: source,\n\t\t\tstream_index: request.stream_index,\n\t\t\tparams,\n\t\t\toutput_filename: output,\n\t\t\tduration_seconds: 0.0,\n\t\t}\n\t}\n\n\t/// Build the `ffmpeg` command-line argument vector for the proxy\n\t/// transcode. Mirrors `build_arguments` in proxy.cpp; the exact ordering\n\t/// and flag spelling are parity-locked (golden test).\n\t///\n\t/// CPP-PARITY: src/task/src/proxy/proxy.cpp (build_arguments)\n\tpub fn build_arguments(\n\t\tsource_filename: \u0026str,\n\t\tstream_index: i32,\n\t\tparams: \u0026ProxyParams,\n\t\toutput_filename: \u0026str,\n\t) -\u003e Vec\u003cString\u003e {\n\t\tlet scale_filter = if params.divider \u003e 1 {\n\t\t\tformat!(\n\t\t\t\t\"scale=w=trunc(iw/{}/2)*2:h=trunc(ih/{}/2)*2\",\n\t\t\t\tparams.divider, params.divider\n\t\t\t)\n\t\t} else {\n\t\t\tformat!(\n\t\t\t\t\"scale=w={}:h={}:force_original_aspect_ratio=decrease\",\n\t\t\t\tparams.width, params.height\n\t\t\t)\n\t\t};\n\n\t\tlet container_format = if params.extension.is_empty() {\n\t\t\t\"mp4\".to_string()\n\t\t} else {\n\t\t\tparams.extension.clone()\n\t\t};\n\n\t\tlet mut args: Vec\u003cString\u003e = vec![\n\t\t\t\"-y\".to_string(),\n\t\t\t\"-nostats\".to_string(),\n\t\t\t\"-progress\".to_string(),\n\t\t\t\"pipe:1\".to_string(),\n\t\t\t\"-i\".to_string(),\n\t\t\tsource_filename.to_string(),\n\t\t\t\"-map\".to_string(),\n\t\t\tformat!(\"0:{stream_index}\"),\n\t\t];\n\n\t\tif params.include_audio {\n\t\t\targs.extend([\n\t\t\t\t\"-map\".to_string(),\n\t\t\t\t\"0:a?\".to_string(),\n\t\t\t\t\"-c:a\".to_string(),\n\t\t\t\t\"aac\".to_string(),\n\t\t\t\t\"-b:a\".to_string(),\n\t\t\t\t\"128k\".to_string(),\n\t\t\t]);\n\t\t} else {\n\t\t\targs.push(\"-an\".to_string());\n\t\t}\n\n\t\targs.extend([\n\t\t\t\"-vf\".to_string(),\n\t\t\tscale_filter,\n\t\t\t\"-c:v\".to_string(),\n\t\t\t\"libx264\".to_string(),\n\t\t\t\"-preset\".to_string(),\n\t\t\tparams.preset.clone(),\n\t\t\t\"-crf\".to_string(),\n\t\t\tparams.crf.to_string(),\n\t\t\t\"-pix_fmt\".to_string(),\n\t\t\t\"yuv420p\".to_string(),\n\t\t\t\"-movflags\".to_string(),\n\t\t\t\"+faststart\".to_string(),\n\t\t\t\"-f\".to_string(),\n\t\t\tcontainer_format,\n\t\t\toutput_filename.to_string(),\n\t\t]);\n\n\t\targs\n\t}\n\n\t/// Parse a single `ffmpeg -progress` output line into a progress value in\n\t/// 0.0..=1.0 given the total duration. Mirrors `parse_progress` in\n\t/// proxy.cpp (golden test).\n\t///\n\t/// CPP-PARITY: src/task/src/proxy/proxy.cpp (parse_progress)\n\tpub fn parse_progress(line: \u0026str, duration_seconds: f64) -\u003e Option\u003cf64\u003e {\n\t\tif duration_seconds \u003c= 0.0 {\n\t\t\treturn None;\n\t\t}\n\n\t\tlet out_time_us: i64 = if let Some(rest) = line.strip_prefix(\"out_time_us=\") {\n\t\t\trest.trim().parse().unwrap_or(-1)\n\t\t} else if let Some(rest) = line.strip_prefix(\"out_time_ms=\") {\n\t\t\t// Despite the name, ffmpeg reports this value in microseconds.\n\t\t\trest.trim().parse().unwrap_or(-1)\n\t\t} else {\n\t\t\t-1\n\t\t};\n\n\t\tif out_time_us \u003c 0 {\n\t\t\treturn None;\n\t\t}\n\n\t\tlet progress = out_time_us as f64 / 1_000_000.0 / duration_seconds;\n\t\tSome(if progress \u003c 0.0 {\n\t\t\t0.0\n\t\t} else if progress \u003e 1.0 {\n\t\t\t1.0\n\t\t} else {\n\t\t\tprogress\n\t\t})\n\t}\n}\n\nimpl TaskBehavior for ProxyTask {\n\t/// Spawn `ffmpeg` with the built arguments, feed `-progress` lines to\n\t/// [`ProxyTask::parse_progress`] and emit them as task progress.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e {\n\t\tlet mut ffmpeg_buf = [0i8; 1024];\n\t\tlet found = unsafe {\n\t\t\tbridge::codec::oakcodec_proxy_find_ffmpeg(std::ptr::null(), ffmpeg_buf.as_mut_ptr(), ffmpeg_buf.len() as i32)\n\t\t};\n\t\tif found \u003c= 0 {\n\t\t\ttask.set_error(\n\t\t\t\t\"Failed to generate proxy: ffmpeg executable was not found. Set the ffmpeg path in Preferences \u003e Disk \u003e Proxy Settings.\",\n\t\t\t);\n\t\t\treturn Err(Error::Failed(\"ffmpeg executable was not found\".to_string()));\n\t\t}\n\t\tlet ffmpeg_path = buf_to_string(\u0026ffmpeg_buf);\n\n\t\t// Create the output directory if needed.\n\t\tif let Some(parent) = std::path::Path::new(\u0026self.output_filename).parent() {\n\t\t\tif !parent.as_os_str().is_empty() \u0026\u0026 !parent.exists() {\n\t\t\t\tif std::fs::create_dir_all(parent).is_err() {\n\t\t\t\t\ttask.set_error(\"Failed to create proxy output directory\");\n\t\t\t\t\treturn Err(Error::Failed(\"Failed to create proxy output directory\".to_string()));\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tlet _ = std::fs::remove_file(\u0026self.output_filename);\n\t\tlet working_filename = format!(\"{}.working.mp4\", self.output_filename);\n\t\tlet _ = std::fs::remove_file(\u0026working_filename);\n\n\t\tlet args = Self::build_arguments(\u0026self.source_filename, self.stream_index, \u0026self.params, \u0026working_filename);\n\n\t\t// Probe the source duration for progress scaling (0 when unknown).\n\t\tself.duration_seconds = probe_source_duration_seconds(\u0026ffmpeg_path, \u0026self.source_filename);\n\n\t\tlet mut command = Command::new(\u0026ffmpeg_path);\n\t\tcommand.args(\u0026args).stdout(Stdio::piped()).stderr(Stdio::piped());\n\t\tlet mut child = match command.spawn() {\n\t\t\tOk(child) =\u003e child,\n\t\t\tErr(_) =\u003e {\n\t\t\t\ttask.set_error(\"Failed to start ffmpeg for proxy generation\");\n\t\t\t\treturn Err(Error::Failed(\"Failed to start ffmpeg\".to_string()));\n\t\t\t}\n\t\t};\n\n\t\t// Drain stderr in a thread so a chatty ffmpeg cannot block us.\n\t\tlet stderr = child.stderr.take();\n\t\tif let Some(stderr) = stderr {\n\t\t\tstd::thread::spawn(move || {\n\t\t\t\tlet _ = BufReader::new(stderr).lines().count();\n\t\t\t});\n\t\t}\n\n\t\tlet stdout = child.stdout.take();\n\t\tlet mut last_progress = 0.0_f64;\n\t\tif let Some(stdout) = stdout {\n\t\t\tlet reader = BufReader::new(stdout);\n\t\t\tfor line in reader.lines() {\n\t\t\t\tmatch line {\n\t\t\t\t\tOk(line) =\u003e {\n\t\t\t\t\t\tif let Some(progress) = Self::parse_progress(\u0026line, self.duration_seconds) {\n\t\t\t\t\t\t\tif progress \u003e= 0.0 \u0026\u0026 progress - last_progress \u003e 0.001 {\n\t\t\t\t\t\t\t\tlast_progress = progress;\n\t\t\t\t\t\t\t\ttask.emit_progress(progress);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tErr(_) =\u003e break,\n\t\t\t\t}\n\t\t\t\tif task.is_cancelled() {\n\t\t\t\t\tlet _ = child.kill();\n\t\t\t\t\tlet _ = child.wait();\n\t\t\t\t\tlet _ = std::fs::remove_file(\u0026working_filename);\n\t\t\t\t\ttask.set_error(\"Proxy generation was cancelled\");\n\t\t\t\t\treturn Err(Error::Cancelled);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tlet exit_status = child.wait();\n\t\tif !matches!(exit_status, Ok(status) if status.success()) {\n\t\t\tlet _ = std::fs::remove_file(\u0026working_filename);\n\t\t\ttask.set_error(\"ffmpeg failed to generate proxy\");\n\t\t\treturn Err(Error::Failed(\"ffmpeg failed to generate proxy\".to_string()));\n\t\t}\n\n\t\tif !std::path::Path::new(\u0026working_filename).exists() {\n\t\t\ttask.set_error(\"ffmpeg finished but proxy file was not created\");\n\t\t\treturn Err(Error::Failed(\"ffmpeg finished but proxy file was not created\".to_string()));\n\t\t}\n\n\t\tif std::fs::rename(\u0026working_filename, \u0026self.output_filename).is_err() {\n\t\t\ttask.set_error(\"Failed to move proxy into place\");\n\t\t\treturn Err(Error::Failed(\"Failed to move proxy into place\".to_string()));\n\t\t}\n\n\t\ttask.emit_progress(1.0);\n\t\tOk(())\n\t}\n}\n\n/// Read a NUL-terminated C char buffer into a String.\nfn buf_to_string(buf: \u0026[i8]) -\u003e String {\n\tlet len = buf.iter().position(|\u0026c| c == 0).unwrap_or(buf.len());\n\tunsafe { String::from_utf8_lossy(std::slice::from_raw_parts(buf.as_ptr() as *const u8, len)).into_owned() }\n}\n\n/// Probe the source duration via `ffprobe` next to ffmpeg; 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Oak Video Editor - Non-Linear Video Editor\n// Copyright (C) 2026 Oak Team\n//\n// This program is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// This program is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! `RenderTask` abstract base, mirroring `src/task/src/render/render.h`.\n//!\n//! The abstract parent of [`crate::export::ExportTask`] and\n//! [`crate::precache::PreCacheTask`]. It renders frames/audio through\n//! oakrender tickets (`bridge::render`) and hands each result to a virtual\n//! hook (frame/audio downloaded, subtitle encoded) that the subclass\n//! implements via the [`RenderTaskBehavior`] trait.\n//!\n//! ## Concurrent render loop\n//!\n//! Like the C++ original (`render.cpp`), the loop keeps up to\n//! `max_inflight` tickets running at once (default\n//! `std::thread::available_parallelism()`, matching the C++\n//! `std::max(1, hardware_concurrency)`). Tickets report completion through\n//! the `oakrender_ticket_finished_fn` callback (fired on the ticket's own\n//! finishing thread), which pushes the finished ticket into a shared queue\n//! and wakes the render thread (queue + condvar, exactly the C++ design).\n//! Tickets may complete out of order; a **reorder buffer** delivers the\n//! results to the hooks in timestamp order — the audio range first (the C++\n//! queue-audio-first order), then every frame in ascending time — so the\n//! observable per-frame contract (`frame_downloaded`/`audio_downloaded` in\n//! order, progress updates, cancellation between frames) is unchanged.\n//!\n//! The ticket's finished callback hands the loop a **borrowed copy** of the\n//! submitter's handle (`include/render/ticket.h`: \"the submitter keeps\n//! ownership and releases it\"). The loop therefore releases exactly the\n//! handle value each submit function returns, once, and never releases the\n//! queue's borrowed copies. Cancellation (or a hook error) cancels and\n//! waits every in-flight ticket before returning, so every submitted\n//! ticket's completion still fires exactly once.\n//!\n//! CPP-PARITY: src/task/src/render/render.h\n\nuse std::collections::{HashMap, VecDeque};\nuse std::sync::atomic::{AtomicUsize, Ordering};\nuse std::sync::{Condvar, Mutex};\n\nuse crate::bridge;\nuse crate::bridge::common::OakColorTransform;\nuse crate::bridge::node::{cstr, OAKNODE_SEQUENCE_SAMPLES_INPUT, OAKNODE_SEQUENCE_TEXTURE_INPUT};\nuse crate::bridge::render::{OakRenderTicket, OakRenderVideoTicketParams};\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\nuse crate::task::Task;\nuse oakcore_rs::{Rational, TimeRange};\n\n/// `OAKRENDER_TICKET_VIDEO` (`include/render/ticket.h`).\nconst TICKET_VIDEO: i32 = 0;\n/// `OAKRENDER_TICKET_AUDIO` (`include/render/ticket.h`).\nconst TICKET_AUDIO: i32 = 1;\n\n/// Overrides applied to a render ticket, mirroring the C++ `ForceParams`\n/// struct in render.h (fields map onto `oakrender_video_ticket_params`).\n///\n/// CPP-PARITY: src/task/src/render/render.h (ForceParams)\n#[derive(Clone, Debug, Default)]\npub struct ForceParams {\n\t/// Forced output width (0 = off).\n\tpub force_width: i32,\n\t/// Forced output height (0 = off).\n\tpub force_height: i32,\n\t/// Forced color matrix (row-major 4x4); only used when\n\t/// `has_force_matrix` is set.\n\tpub force_matrix: [f64; 16],\n\t/// Whether `force_matrix` is in effect.\n\tpub has_force_matrix: bool,\n\t/// Forced pixel format (`oakcore_rs::PixelFormat` as int; -1 = off).\n\tpub force_format: i32,\n\t/// Forced channel count (0 = off).\n\tpub force_channel_count: i32,\n\t/// Forced color output (borrowed `OakColorProcessor`; empty = none).\n\tpub force_color_output: CHandle,\n}\n\n/// Subclass hooks, standing in for the C++ protected virtuals\n/// `download_frame`/`frame_downloaded`/`audio_downloaded`/`encode_subtitle`.\npub trait RenderTaskBehavior {\n\t/// Called for each rendered frame.\n\tfn frame_downloaded(\u0026mut self, task: \u0026mut Task, frame: CHandle) -\u003e Result\u003c()\u003e;\n\t/// Called for each rendered audio buffer.\n\tfn audio_downloaded(\u0026mut self, task: \u0026mut Task, buffer: CHandle) -\u003e Result\u003c()\u003e;\n\t/// Called to encode a subtitle.\n\tfn encode_subtitle(\u0026mut self, task: \u0026mut Task, text: \u0026str) -\u003e Result\u003c()\u003e;\n}\n\n/// The abstract render task base. Holds the shared [`Task`], the sequence\n/// output params, the viewer node, and the subclass behavior.\npub struct RenderTask {\n\t/// The shared task base.\n\tpub base: Task,\n\t/// Output video params (borrowed `OakVideoParams`).\n\tpub video_params: CHandle,\n\t/// Output audio params (borrowed `OakAudioParams`; may be empty).\n\tpub audio_params: CHandle,\n\t/// The viewer node being rendered (borrowed `OakNodeNode`).\n\tpub viewer: CHandle,\n\t/// Force params applied to every ticket.\n\tpub force_params: ForceParams,\n\t/// The subclass behavior.\n\tpub behavior: Option\u003cBox\u003cdyn RenderTaskBehavior + Send\u003e\u003e,\n\t// --- private render inputs (set by the subclass before render()) ---\n\t/// Borrowed color manager.\n\tcolor_manager: CHandle,\n\t/// Borrowed frame cache.\n\tcache: CHandle,\n\t/// `olive::RenderMode::Mode` as int.\n\tmode: i32,\n\t/// Whether audio ranges are rendered.\n\taudio_enabled: bool,\n\t/// The range rendered by [`RenderTask::render`].\n\texport_range: TimeRange,\n\t/// Whether the render loop emits progress itself (the export task\n\t/// disables it and reports progress per written frame).\n\tnative_progress_signalling: bool,\n\t/// Total number of frames in `export_range` (computed by `render`).\n\ttotal_frames: i64,\n\t/// Maximum render tickets kept in flight at once (the C++\n\t/// `maximum_rendered_frames`; defaults to `available_parallelism`).\n\tmax_inflight: usize,\n}\n\nimpl RenderTask {\n\t/// Create a render task with default (empty) render inputs.\n\tpub fn new(\n\t\tbase: Task,\n\t\tvideo_params: CHandle,\n\t\taudio_params: CHandle,\n\t\tviewer: CHandle,\n\t\tforce_params: ForceParams,\n\t\tbehavior: Option\u003cBox\u003cdyn RenderTaskBehavior + Send\u003e\u003e,\n\t) -\u003e RenderTask {\n\t\tRenderTask {\n\t\t\tbase,\n\t\t\tvideo_params,\n\t\t\taudio_params,\n\t\t\tviewer,\n\t\t\tforce_params,\n\t\t\tbehavior,\n\t\t\tcolor_manager: CHandle::null(),\n\t\t\tcache: CHandle::null(),\n\t\t\tmode: 0,\n\t\t\taudio_enabled: false,\n\t\t\texport_range: TimeRange::new(Rational::new(0, 1), Rational::new(0, 1)),\n\t\t\tnative_progress_signalling: true,\n\t\t\ttotal_frames: 0,\n\t\t\tmax_inflight: std::thread::available_parallelism().map(|n| n.get()).unwrap_or(1).max(1),\n\t\t}\n\t}\n\n\t/// Configure the render inputs before [`RenderTask::render`] (called by\n\t/// the concrete subclasses' `run`).\n\tpub fn set_render_inputs(\n\t\t\u0026mut self,\n\t\tcolor_manager: CHandle,\n\t\tcache: CHandle,\n\t\tmode: i32,\n\t\taudio_enabled: bool,\n\t\texport_range: TimeRange,\n\t) {\n\t\tself.color_manager = color_manager;\n\t\tself.cache = cache;\n\t\tself.mode = mode;\n\t\tself.audio_enabled = audio_enabled;\n\t\tself.export_range = export_range;\n\t}\n\n\t/// Enable/disable the render loop's own progress signalling.\n\tpub fn set_native_progress_signalling(\u0026mut self, enabled: bool) {\n\t\tself.native_progress_signalling = enabled;\n\t}\n\n\t/// Override the number of render tickets kept in flight at once.\n\t///\n\t/// Defaults to `std::thread::available_parallelism()`, mirroring the\n\t/// C++ `std::max(1, int(std::thread::hardware_concurrency()))`. Primarily\n\t/// a test hook: a smaller window makes concurrent-completion tests\n\t/// deterministic regardless of the host core count.\n\tpub fn set_max_inflight(\u0026mut self, max: usize) {\n\t\tself.max_inflight = max.max(1);\n\t}\n\n\t/// The number of frames computed by the last [`RenderTask::render`] run.\n\tpub fn total_frames(\u0026self) -\u003e i64 {\n\t\tself.total_frames\n\t}\n\n\t/// Frame duration rational from the video params (falls back to 1/1\n\t/// when the params are empty/invalid).\n\tfn timebase(\u0026self) -\u003e Rational {\n\t\tlet mut num = 0;\n\t\tlet mut den = 1;\n\t\tunsafe {\n\t\t\tbridge::common::oakcommon_videoparams_frame_rate_as_time_base(\n\t\t\t\tself.video_params,\n\t\t\t\t\u0026mut num,\n\t\t\t\t\u0026mut den,\n\t\t\t);\n\t\t}\n\t\tif num \u003c= 0 || den \u003c= 0 {\n\t\t\tRational::new(1, 1)\n\t\t} else {\n\t\t\tRational::new(num as i64, den as i64)\n\t\t}\n\t}\n\n\t/// Submit one video frame ticket at `time` (mirrors the C++\n\t/// `start_video_ticket`). `dispatch` is the shared completion channel\n\t/// handed to the ticket's finished callback.\n\tfn submit_video_ticket(\n\t\t\u0026self,\n\t\ttime: Rational,\n\t\tdispatch: *mut RenderDispatch,\n\t) -\u003e Result\u003cOakRenderTicket\u003e {\n\t\tlet mut output_node = CHandle::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_input_get_connected_node(\n\t\t\t\tself.viewer,\n\t\t\t\tcstr(OAKNODE_SEQUENCE_TEXTURE_INPUT),\n\t\t\t\t\u0026mut output_node,\n\t\t\t);\n\t\t}\n\t\tif output_node.ctx.is_null() {\n\t\t\treturn Err(Error::Failed(\"No node connected to the viewer output\".to_string()));\n\t\t}\n\n\t\tlet audio_params_ptr = if self.audio_params.ctx.is_null() {\n\t\t\tstd::ptr::null()\n\t\t} else {\n\t\t\t\u0026self.audio_params as *const CHandle\n\t\t};\n\t\tlet force = \u0026self.force_params;\n\t\tlet params = OakRenderVideoTicketParams {\n\t\t\toutput_node,\n\t\t\tvideo_params: self.video_params,\n\t\t\taudio_params: audio_params_ptr,\n\t\t\ttime_num: time.numerator(),\n\t\t\ttime_den: time.denominator(),\n\t\t\tcolor_manager: self.color_manager,\n\t\t\tmode: self.mode,\n\t\t\tforce_width: force.force_width,\n\t\t\tforce_height: force.force_height,\n\t\t\tforce_matrix: force.force_matrix,\n\t\t\thas_force_matrix: if force.has_force_matrix { 1 } else { 0 },\n\t\t\tforce_format: force.force_format,\n\t\t\tforce_channel_count: force.force_channel_count,\n\t\t\tforce_color_output: bridge::render::OakColorProcessor::from_chandle(force.force_color_output),\n\t\t\tforce_color_transform: OakColorTransform {\n\t\t\t\tctx: std::ptr::null_mut(),\n\t\t\t\taddref: None,\n\t\t\t\trelease: None,\n\t\t\t\tabi_version: 0,\n\t\t\t},\n\t\t\tcache: bridge::render::OakRenderCache::from_chandle(self.cache),\n\t\t};\n\n\t\tlet ticket = unsafe {\n\t\t\tbridge::render::oakrender_ticket_render_frame(\n\t\t\t\t\u0026params,\n\t\t\t\tSome(ticket_finished),\n\t\t\t\tdispatch as *mut std::ffi::c_void,\n\t\t\t)\n\t\t};\n\t\t// Per-frame call: release the borrowed handle box (the ticket keeps\n\t\t// the native node, not the handle).\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_free(\u0026mut output_node);\n\t\t}\n\t\tif ticket.ctx.is_null() {\n\t\t\treturn Err(Error::Failed(\"Failed to start frame render ticket\".to_string()));\n\t\t}\n\t\tOk(ticket)\n\t}\n\n\t/// Submit one audio ticket for `range` (the Rust API renders a single\n\t/// range; the C++ submits one ticket per audio range).\n\tfn submit_audio_ticket(\n\t\t\u0026self,\n\t\trange: TimeRange,\n\t\tdispatch: *mut RenderDispatch,\n\t) -\u003e Result\u003cOakRenderTicket\u003e {\n\t\tlet mut output_node = CHandle::null();\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_input_get_connected_node(\n\t\t\t\tself.viewer,\n\t\t\t\tcstr(OAKNODE_SEQUENCE_SAMPLES_INPUT),\n\t\t\t\t\u0026mut output_node,\n\t\t\t);\n\t\t}\n\t\tif output_node.ctx.is_null() {\n\t\t\treturn Err(Error::Failed(\"No node connected to the viewer samples input\".to_string()));\n\t\t}\n\n\t\tlet audio_params_ptr = if self.audio_params.ctx.is_null() {\n\t\t\tstd::ptr::null()\n\t\t} else {\n\t\t\t\u0026self.audio_params as *const CHandle\n\t\t};\n\t\tlet ticket = unsafe {\n\t\t\tbridge::render::oakrender_ticket_render_audio(\n\t\t\t\toutput_node,\n\t\t\t\trange.in_().numerator(),\n\t\t\t\trange.in_().denominator(),\n\t\t\t\trange.out().numerator(),\n\t\t\t\trange.out().denominator(),\n\t\t\t\taudio_params_ptr,\n\t\t\t\tself.mode,\n\t\t\t\tSome(ticket_finished),\n\t\t\t\tdispatch as *mut std::ffi::c_void,\n\t\t\t)\n\t\t};\n\t\tunsafe {\n\t\t\tbridge::node::oaknode_node_free(\u0026mut output_node);\n\t\t}\n\t\tif ticket.ctx.is_null() {\n\t\t\treturn Err(Error::Failed(\"Failed to start audio render ticket\".to_string()));\n\t\t}\n\t\tOk(ticket)\n\t}\n\n\t/// Submit a video ticket and account it as in-flight.\n\t///\n\t/// The in-flight count is bumped **before** the submit: a ticket can\n\t/// complete synchronously (its callback fires before the submit returns),\n\t/// so the callback's decrement must always see its increment. A failed\n\t/// submit (null ticket) never fires a callback, so the bump is rolled\n\t/// back.\n\tfn start_video_ticket(\n\t\t\u0026self,\n\t\ttime: Rational,\n\t\tdispatch: *mut RenderDispatch,\n\t\tin_flight: \u0026mut Vec\u003cOakRenderTicket\u003e,\n\t) -\u003e Result\u003c()\u003e {\n\t\tunsafe {\n\t\t\t(\u0026*dispatch).running.fetch_add(1, Ordering::SeqCst);\n\t\t}\n\t\tmatch self.submit_video_ticket(time, dispatch) {\n\t\t\tOk(ticket) =\u003e {\n\t\t\t\tin_flight.push(ticket);\n\t\t\t\tOk(())\n\t\t\t}\n\t\t\tErr(e) =\u003e {\n\t\t\t\tunsafe {\n\t\t\t\t\t(\u0026*dispatch).running.fetch_sub(1, Ordering::SeqCst);\n\t\t\t\t}\n\t\t\t\tErr(e)\n\t\t\t}\n\t\t}\n\t}\n\n\t/// Submit the audio ticket and account it as in-flight (see\n\t/// [`RenderTask::start_video_ticket`] for the counting contract).\n\tfn start_audio_ticket(\n\t\t\u0026self,\n\t\trange: TimeRange,\n\t\tdispatch: *mut RenderDispatch,\n\t\tin_flight: \u0026mut Vec\u003cOakRenderTicket\u003e,\n\t) -\u003e Result\u003c()\u003e {\n\t\tunsafe {\n\t\t\t(\u0026*dispatch).running.fetch_add(1, Ordering::SeqCst);\n\t\t}\n\t\tmatch self.submit_audio_ticket(range, dispatch) {\n\t\t\tOk(ticket) =\u003e {\n\t\t\t\tin_flight.push(ticket);\n\t\t\t\tOk(())\n\t\t\t}\n\t\t\tErr(e) =\u003e {\n\t\t\t\tunsafe {\n\t\t\t\t\t(\u0026*dispatch).running.fetch_sub(1, Ordering::SeqCst);\n\t\t\t\t}\n\t\t\t\tErr(e)\n\t\t\t}\n\t\t}\n\t}\n\n\t/// Map a finished ticket back to its delivery slot: the audio slot for\n\t/// audio tickets, the matching frame slot for video tickets.\n\tfn classify_ticket(\n\t\t\u0026self,\n\t\tticket: \u0026OakRenderTicket,\n\t\tslot_by_key: \u0026HashMap\u003c(i32, i64, i64), usize\u003e,\n\t) -\u003e Option\u003cusize\u003e {\n\t\tlet kind = unsafe { bridge::render::oakrender_ticket_get_type(*ticket) };\n\t\tif kind == TICKET_AUDIO {\n\t\t\tlet mut a = 0i64;\n\t\t\tlet mut b = 1i64;\n\t\t\tlet mut c = 0i64;\n\t\t\tlet mut d = 1i64;\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_ticket_get_range(*ticket, \u0026mut a, \u0026mut b, \u0026mut c, \u0026mut d);\n\t\t\t}\n\t\t\tslot_by_key.get(\u0026(TICKET_AUDIO, a, b)).copied()\n\t\t} else if kind == TICKET_VIDEO {\n\t\t\tlet mut n = 0i64;\n\t\t\tlet mut d = 1i64;\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_ticket_get_time(*ticket, \u0026mut n, \u0026mut d);\n\t\t\t}\n\t\t\tslot_by_key.get(\u0026(TICKET_VIDEO, n, d)).copied()\n\t\t} else {\n\t\t\tNone\n\t\t}\n\t}\n\n\t/// Drive the whole render: keep up to `max_inflight` frame tickets in\n\t/// flight (audio first, then frames in timestamp order), deliver each\n\t/// finished ticket's result to the behavior hooks in timestamp order via\n\t/// the reorder buffer, and stop on cancellation or a hook error —\n\t/// cancelling and waiting every still-running ticket so their\n\t/// completions fire exactly once.\n\t///\n\t/// `task` is the live driving task (cancellation/progress/error\n\t/// reporting); `behavior` is the concrete subclass receiving the\n\t/// `frame_downloaded`/`audio_downloaded` hooks.\n\tpub fn render(\u0026mut self, task: \u0026mut Task, behavior: \u0026mut dyn RenderTaskBehavior) -\u003e Result\u003c()\u003e {\n\t\tlet timebase = self.timebase();\n\n\t\t// Compute the frame timestamps (progress denominator mirrors the\n\t\t// C++ `total_length \u003c= 0 -\u003e 1` guard).\n\t\tlet mut frame_times: Vec\u003cRational\u003e = Vec::new();\n\t\tlet mut t = self.export_range.in_();\n\t\twhile t \u003c self.export_range.out() {\n\t\t\tframe_times.push(t);\n\t\t\tt = t + timebase;\n\t\t}\n\t\tself.total_frames = frame_times.len() as i64;\n\t\tlet total_length = if frame_times.is_empty() { 1.0 } else { frame_times.len() as f64 };\n\n\t\t// Delivery order: the audio range first (mirrors the C++ queue\n\t\t// order), then every frame in ascending timestamp order. The reorder\n\t\t// buffer delivers to the hooks in exactly this order no matter the\n\t\t// completion order.\n\t\tlet mut slots: Vec\u003cDeliverySlot\u003e = Vec::new();\n\t\tif self.audio_enabled {\n\t\t\tslots.push(DeliverySlot {\n\t\t\t\tkind: TICKET_AUDIO,\n\t\t\t\ttime: self.export_range.in_(),\n\t\t\t});\n\t\t}\n\t\tfor \u0026ft in \u0026frame_times {\n\t\t\tslots.push(DeliverySlot {\n\t\t\t\tkind: TICKET_VIDEO,\n\t\t\t\ttime: ft,\n\t\t\t});\n\t\t}\n\t\tlet mut slot_by_key: HashMap\u003c(i32, i64, i64), usize\u003e = HashMap::with_capacity(slots.len());\n\t\tfor (i, slot) in slots.iter().enumerate() {\n\t\t\tslot_by_key.insert((slot.kind, slot.time.numerator(), slot.time.denominator()), i);\n\t\t}\n\t\tlet total_slots = slots.len();\n\n\t\t// The shared completion channel. Heap-allocated: the C callback\n\t\t// reaches it through its `userdata` pointer. Freed only once every\n\t\t// in-flight ticket has fired its callback (`running == 0`).\n\t\tlet dispatch = Box::into_raw(Box::new(RenderDispatch::new()));\n\t\t// Shared view of the same state for the render thread (the raw\n\t\t// pointer stays valid until the box is freed below).\n\t\tlet dispatch_ref = unsafe { \u0026*dispatch };\n\t\tlet window = self.max_inflight.max(1);\n\n\t\t// Tickets we hold (the submitter's copy of each handle, released\n\t\t// exactly once at the end); `consumed` counts tickets whose finished\n\t\t// queue copy has been popped, so `in_flight.len() - consumed` is the\n\t\t// live window.\n\t\tlet mut in_flight: Vec\u003cOakRenderTicket\u003e = Vec::new();\n\t\tlet mut consumed = 0usize;\n\t\t// Next frame timestamp to submit and next delivery slot.\n\t\tlet mut next_frame_index = 0usize;\n\t\tlet mut next_slot = 0usize;\n\t\t// Reorder buffer: finished tickets not yet deliverable.\n\t\tlet mut pending: HashMap\u003cusize, OakRenderTicket\u003e = HashMap::new();\n\t\tlet mut progress_counter = 0.0;\n\t\tlet mut result: Result\u003c()\u003e = Ok(());\n\n\t\t// Queue audio first (mirrors the C++ order).\n\t\tif self.audio_enabled \u0026\u0026 result.is_ok() {\n\t\t\tif let Err(e) = self.start_audio_ticket(self.export_range, dispatch, \u0026mut in_flight) {\n\t\t\t\tresult = Err(e);\n\t\t\t}\n\t\t}\n\n\t\t// Start the initial frame window.\n\t\tif result.is_ok() {\n\t\t\twhile in_flight.len() \u003c window \u0026\u0026 next_frame_index \u003c frame_times.len() {\n\t\t\t\tif let Err(e) =\n\t\t\t\t\tself.start_video_ticket(frame_times[next_frame_index], dispatch, \u0026mut in_flight)\n\t\t\t\t{\n\t\t\t\t\tresult = Err(e);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tnext_frame_index += 1;\n\t\t\t}\n\t\t}\n\n\t\twhile result.is_ok() \u0026\u0026 !task.is_cancelled() \u0026\u0026 next_slot \u003c total_slots {\n\t\t\t// Drain the completion queue into the reorder buffer.\n\t\t\twhile let Some(ticket) = dispatch_ref.pop_finished() {\n\t\t\t\tconsumed += 1;\n\t\t\t\tmatch self.classify_ticket(\u0026ticket, \u0026slot_by_key) {\n\t\t\t\t\tSome(slot_index) =\u003e {\n\t\t\t\t\t\tpending.insert(slot_index, ticket);\n\t\t\t\t\t}\n\t\t\t\t\tNone =\u003e {\n\t\t\t\t\t\tresult = Err(Error::Failed(\n\t\t\t\t\t\t\t\"Render ticket reported an unexpected timestamp\".to_string(),\n\t\t\t\t\t\t));\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tif result.is_err() {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Deliver contiguous results in the observable (timestamp) order.\n\t\t\twhile let Some(ticket) = pending.remove(\u0026next_slot) {\n\t\t\t\tlet slot = \u0026slots[next_slot];\n\t\t\t\tif slot.kind == TICKET_AUDIO {\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::render::oakrender_ticket_get_samples(ticket, std::ptr::null_mut());\n\t\t\t\t\t}\n\t\t\t\t\tif let Err(e) = behavior.audio_downloaded(task, CHandle::null()) {\n\t\t\t\t\t\tresult = Err(e);\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tlet mut frame = CHandle::null();\n\t\t\t\t\tunsafe {\n\t\t\t\t\t\tbridge::render::oakrender_ticket_get_frame(ticket, \u0026mut frame);\n\t\t\t\t\t}\n\t\t\t\t\tif let Err(e) = behavior.frame_downloaded(task, frame) {\n\t\t\t\t\t\tresult = Err(e);\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t\tif !frame.ctx.is_null() {\n\t\t\t\t\t\tunsafe {\n\t\t\t\t\t\t\tbridge::render::oakrender_codec_frame_free(\u0026mut frame);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tif self.native_progress_signalling {\n\t\t\t\t\t\tprogress_counter += 1.0;\n\t\t\t\t\t\ttask.emit_progress(progress_counter / total_length);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tnext_slot += 1;\n\t\t\t}\n\t\t\tif result.is_err() || task.is_cancelled() {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Refill the window: one new ticket per delivered frame.\n\t\t\twhile in_flight.len().saturating_sub(consumed) \u003c window\n\t\t\t\t\u0026\u0026 next_frame_index \u003c frame_times.len()\n\t\t\t{\n\t\t\t\tif let Err(e) =\n\t\t\t\t\tself.start_video_ticket(frame_times[next_frame_index], dispatch, \u0026mut in_flight)\n\t\t\t\t{\n\t\t\t\t\tresult = Err(e);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tnext_frame_index += 1;\n\t\t\t}\n\t\t\tif result.is_err() {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tif next_slot \u003e= total_slots {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Wait for the next completion (a cancellation or a hook error\n\t\t\t// aborts the wait; in-flight tickets then finish, waking us).\n\t\t\tlet mut guard = dispatch_ref.finished.lock().unwrap_or_else(|e| e.into_inner());\n\t\t\twhile guard.is_empty()\n\t\t\t\t\u0026\u0026 dispatch_ref.running.load(Ordering::SeqCst) \u003e 0\n\t\t\t\t\u0026\u0026 !task.is_cancelled()\n\t\t\t{\n\t\t\t\tguard = dispatch_ref.cv.wait(guard).unwrap_or_else(|e| e.into_inner());\n\t\t\t}\n\t\t\tdrop(guard);\n\t\t\tif dispatch_ref.finished.lock().unwrap_or_else(|e| e.into_inner()).is_empty()\n\t\t\t\t\u0026\u0026 dispatch_ref.running.load(Ordering::SeqCst) == 0\n\t\t\t{\n\t\t\t\t// Every ticket finished and its queue copy was consumed.\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\t// Cancellation that aborted the loop before every slot was delivered\n\t\t// maps to the cancellation error (the sync loop returned\n\t\t// `Error::Cancelled` from its between-frames check; a render that\n\t\t// finished every frame despite a late cancel stays successful).\n\t\tif result.is_ok() \u0026\u0026 task.is_cancelled() \u0026\u0026 next_slot \u003c total_slots {\n\t\t\tresult = Err(Error::Cancelled);\n\t\t}\n\n\t\t// Tear down. On cancellation or error, cancel and wait every ticket\n\t\t// still in flight (the C++ abort path), so their completions still\n\t\t// fire exactly once. Then wait until every callback has returned,\n\t\t// release the submitter's handles, and free the completion channel.\n\t\tif result.is_err() || task.is_cancelled() {\n\t\t\tfor \u0026ticket in \u0026in_flight {\n\t\t\t\tunsafe {\n\t\t\t\t\tbridge::render::oakrender_ticket_cancel(ticket);\n\t\t\t\t\tbridge::render::oakrender_ticket_wait(ticket);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tdispatch_ref.wait_idle();\n\t\tfor ticket in in_flight.iter_mut() {\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_ticket_free(ticket);\n\t\t\t}\n\t\t}\n\t\tunsafe {\n\t\t\tdrop(Box::from_raw(dispatch));\n\t\t}\n\n\t\tresult\n\t}\n\n\t/// A detached render state used while a concrete task temporarily moves\n\t/// its render out of itself to drive it with itself as the behavior\n\t/// (avoids a self-referential borrow). Never used for actual rendering.\n\tpub(crate) fn placeholder() -\u003e RenderTask {\n\t\tRenderTask::new(\n\t\t\tTask::new(\"\", CHandle::null()),\n\t\t\tCHandle::null(),\n\t\t\tCHandle::null(),\n\t\t\tCHandle::null(),\n\t\t\tForceParams::default(),\n\t\t\tNone,\n\t\t)\n\t}\n}\n\n/// One deliverable unit of the render: an audio range or a frame time, in\n/// the observable delivery order (audio first, then frames in time order).\nstruct DeliverySlot {\n\t/// `TICKET_AUDIO` or `TICKET_VIDEO`.\n\tkind: i32,\n\t/// Frame time (video) or range start (audio).\n\ttime: Rational,\n}\n\n/// Shared state between the render thread and the ticket-finished\n/// callbacks (the ticket's async return channel, mirroring the C++\n/// `finished_mutex_`/`finished_tickets_`/`finished_wait_cond_`). One\n/// instance per [`RenderTask::render`] run, reached from the C callback\n/// through its `userdata` pointer; heap-allocated for the run and freed\n/// only after every in-flight ticket has fired (`running == 0`).\nstruct RenderDispatch {\n\t/// Finished tickets in completion order (callbacks push here).\n\tfinished: Mutex\u003cVecDeque\u003cOakRenderTicket\u003e\u003e,\n\t/// Tickets whose completion callback has not fired yet.\n\trunning: AtomicUsize,\n\t/// Wakes the render thread when a ticket finishes.\n\tcv: Condvar,\n}\n\nimpl RenderDispatch {\n\tfn new() -\u003e RenderDispatch {\n\t\tRenderDispatch {\n\t\t\tfinished: Mutex::new(VecDeque::new()),\n\t\t\trunning: AtomicUsize::new(0),\n\t\t\tcv: Condvar::new(),\n\t\t}\n\t}\n\n\t/// Pop the next finished ticket (the callback's borrowed copy; `None`\n\t/// when the queue is empty).\n\tfn pop_finished(\u0026self) -\u003e Option\u003cOakRenderTicket\u003e {\n\t\tself.finished\n\t\t\t.lock()\n\t\t\t.unwrap_or_else(|e| e.into_inner())\n\t\t\t.pop_front()\n\t}\n\n\t/// Block until every submitted ticket has fired its callback. Called\n\t/// before freeing `self`, so no callback can touch the state afterwards.\n\tfn wait_idle(\u0026self) {\n\t\tlet mut guard = self.finished.lock().unwrap_or_else(|e| e.into_inner());\n\t\twhile self.running.load(Ordering::SeqCst) \u003e 0 {\n\t\t\tguard = self.cv.wait(guard).unwrap_or_else(|e| e.into_inner());\n\t\t}\n\t}\n}\n\n/// Ticket-finished callback, mirroring the C++ `on_ticket_finished`. Fires\n/// on the ticket's finishing thread; pushes the ticket's borrowed handle\n/// copy into the completion queue and wakes the render thread. 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See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with this program. If not, see \u003chttp://www.gnu.org/licenses/\u003e.\n\n//! The `Task` base class, mirroring `src/task/src/task.h` (`olive::Task`).\n//!\n//! The C++ class is abstract with a protected virtual `run()`. In Rust each\n//! concrete task (`ConformTask`, `ProxyTask`, …) is its own struct and the\n//! shared lifecycle lives here; the per-task work is supplied through\n//! [`TaskBehavior`] (a trait object, per architectural decision #1 in\n//! README.md). Cancellation rides on a borrowed oakrender `OakCancelAtom`\n//! reached through `crate::bridge::render`.\n//!\n//! CPP-PARITY: src/task/src/task.h\n//!\n//! ## Concurrency contract\n//!\n//! Like the C++ original, the task's `title`/`error` strings are mutated on\n//! the task's own thread (`run()`). The C ABI layer must therefore only read\n//! them while the task is not concurrently running — i.e. before\n//! [`Task::start`] or after the task finished (the `finished` flag is\n//! synchronized through the `done` condvar, so `is_finished()`/\n//! `succeeded()` are always race-free). This mirrors the C++ semantics\n//! exactly.\n\nuse std::sync::atomic::{AtomicI64, Ordering};\nuse std::sync::{Arc, Condvar, Mutex};\n\nuse crate::bridge;\nuse crate::error::{Error, Result};\nuse crate::handle::CHandle;\n\n/// Event type emitted through a task's [`EventListener`], mirroring the\n/// C++ `EventType` enum (`k_event_started`/`k_event_progress`/`k_event_finished`).\n///\n/// CPP-PARITY: src/task/src/task.h (EventType)\n#[derive(Clone, Copy, Debug, PartialEq)]\npub enum TaskEvent {\n\t/// Task began executing.\n\tStarted,\n\t/// Progress updated; the payload is in 0.0..=1.0.\n\tProgress(f64),\n\t/// Task finished (success or failure).\n\tFinished,\n}\n\n/// A listener notified of [`TaskEvent`]s, mirroring the C++\n/// `std::function\u003cvoid(EventType,double)\u003e` listener. Delivered under the\n/// task's lock; kept as the single async return channel (decision #3).\n///\n/// CPP-PARITY: src/task/src/task.h (EventListener)\npub type EventListener = Box\u003cdyn FnMut(TaskEvent) + Send\u003e;\n\n/// Trait supplying the per-task work, standing in for the C++ protected\n/// virtual `run()`. Concrete tasks implement this; [`Task::start`] drives it.\n///\n/// CPP-PARITY: src/task/src/task.h (run)\npub trait TaskBehavior {\n\t/// Perform the task's work. Returning `Err(Error::Cancelled)` is treated\n\t/// as a cancellation; any other `Err` marks the task failed.\n\tfn run(\u0026mut self, task: \u0026mut Task) -\u003e Result\u003c()\u003e;\n}\n\n/// Values the subscribe wrapper needs to re-encode [`TaskEvent`]s into the\n/// C ABI callback signature `(event_id, value, userdata)`. 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Owns lifecycle state plus a borrowed oakrender cancel\n/// atom; the concrete behavior lives in a [`TaskBehavior`] trait object.\npub struct Task {\n\ttitle: String,\n\terror: Option\u003cString\u003e,\n\tstart_time: Option\u003cstd::time::Instant\u003e,\n\tcancel_atom: CHandle,\n\towns_atom: bool,\n\tevent_listener: Option\u003cEventListener\u003e,\n\tcancel_event: Option\u003cBox\u003cdyn FnMut() + Send\u003e\u003e,\n\tstarted: bool,\n\tfinished: bool,\n\tsucceeded: bool,\n\tbehavior: Option\u003cBox\u003cdyn TaskBehavior + Send\u003e\u003e,\n\t/// Finish/success flag pair + wakeup condvar (race-free readers).\n\tdone: Arc\u003c(Mutex\u003cTaskDone\u003e, Condvar)\u003e,\n\t/// Values published for the C ABI subscribe wrapper.\n\tsubscriber: Option\u003cArc\u003cSubscriberState\u003e\u003e,\n}\n\nimpl Drop for Task {\n\tfn drop(\u0026mut self) {\n\t\t// Free the cancellation atom only when we created it ourselves;\n\t\t// borrowed atoms are released by their owner.\n\t\tif self.owns_atom \u0026\u0026 !self.cancel_atom.is_null() {\n\t\t\tlet mut atom = bridge::render::OakCancelAtom::from_chandle(self.cancel_atom);\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_cancelatom_free(\u0026mut atom);\n\t\t\t}\n\t\t}\n\t}\n}\n\nimpl Task {\n\t/// Create a new task with the given title and a borrowed oakrender\n\t/// cancel atom. 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A previously owned atom is freed; the new\n\t/// atom is borrowed (never freed by this task). Used to share one atom\n\t/// between a task and its behavior's inner base task.\n\tpub fn set_cancel_atom(\u0026mut self, atom: CHandle) {\n\t\tif self.owns_atom \u0026\u0026 !self.cancel_atom.is_null() {\n\t\t\tlet mut old = bridge::render::OakCancelAtom::from_chandle(self.cancel_atom);\n\t\t\tunsafe {\n\t\t\t\tbridge::render::oakrender_cancelatom_free(\u0026mut old);\n\t\t\t}\n\t\t}\n\t\tself.cancel_atom = atom;\n\t\tself.owns_atom = false;\n\t}\n\n\t/// Register the event listener. Replaces any previous listener.\n\tpub fn set_event_listener(\u0026mut self, listener: EventListener) {\n\t\tself.event_listener = Some(listener);\n\t}\n\n\t/// Register a hook invoked when [`Task::cancel`] is called.\n\tpub fn set_cancel_event(\u0026mut self, cb: Box\u003cdyn FnMut() + Send\u003e) {\n\t\tself.cancel_event = Some(cb);\n\t}\n\n\t/// Publish the shared values used by the C ABI subscribe wrapper.\n\tpub fn set_subscriber(\u0026mut self, state: Arc\u003cSubscriberState\u003e) {\n\t\tself.subscriber = Some(state);\n\t}\n\n\t/// Emit a progress update, clamping to 0.0..=1.0 and delivering it to the\n\t/// listener as [`TaskEvent::Progress`].\n\tpub fn emit_progress(\u0026mut self, progress: f64) {\n\t\tself.emit_event(TaskEvent::Progress(progress.clamp(0.0, 1.0)));\n\t}\n\n\t/// Reset lifecycle state so the task can be run again.\n\tpub fn reset(\u0026mut self) {\n\t\tself.started = false;\n\t\tself.finished = false;\n\t\tself.succeeded = false;\n\t\tself.error = None;\n\t\tself.start_time = None;\n\t\t{\n\t\t\tlet mut done = self.done.0.lock().unwrap();\n\t\t\tdone.finished = false;\n\t\t\tdone.succeeded = false;\n\t\t}\n\t}\n\n\t/// Record a failure message and mark the task failed.\n\tpub fn set_error(\u0026mut self, message: \u0026str) {\n\t\tself.error = Some(message.to_string());\n\t}\n\n\t/// Change the task title.\n\tpub fn set_title(\u0026mut self, title: \u0026str) {\n\t\tself.title = title.to_string();\n\t}\n\n\t/// The task title.\n\tpub fn title(\u0026self) -\u003e \u0026str {\n\t\t\u0026self.title\n\t}\n\n\t/// The failure message, if the task failed.\n\tpub fn error(\u0026self) -\u003e Option\u003c\u0026str\u003e {\n\t\tself.error.as_deref()\n\t}\n\n\t/// Whether the task has finished (success or failure).\n\tpub fn is_finished(\u0026self) -\u003e bool {\n\t\tself.done.0.lock().unwrap().finished\n\t}\n\n\t/// Whether the task finished successfully.\n\tpub fn succeeded(\u0026self) -\u003e bool {\n\t\tself.done.0.lock().unwrap().succeeded\n\t}\n\n\t/// Block until the task finishes. 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a&&(q(ja),q(Ub))}function Rc(a){for(var b=a;null!==b;){if(13===b.tag){var c=b.memoizedState;if(null!==c&&(c=c.dehydrated,null===c||c.data===$d||c.data===Zd))return b}else if(19===b.tag&&void 0!==b.memoizedProps.revealOrder){if(0!==(b.effectTag&64))return b}else if(null!==b.child){b.child.return=b;b=b.child;continue}if(b===a)break;for(;null===b.sibling;){if(null===b.return||b.return===a)return null;b=b.return}b.sibling.return=b.return;b=b.sibling}return null}function ue(a,b){return{responder:a,props:b}}
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f&&(e=g.memoizedProps,c=c.compare,c=null!==c?c:Ob,c(e,d)&&a.ref===b.ref))return sa(a,b,f);b.effectTag|=1;a=Sa(g,d);a.ref=b.ref;a.return=b;return b.child=a}function ph(a,b,c,d,e,f){return null!==a&&Ob(a.memoizedProps,d)&&a.ref===b.ref&&(ia=!1,e<f)?(b.expirationTime=a.expirationTime,sa(a,b,f)):He(a,b,c,d,f)}function qh(a,b){var c=b.ref;if(null===a&&null!==c||null!==a&&a.ref!==c)b.effectTag|=128}function He(a,b,c,d,e){var f=N(c)?Ra:B.current;f=pb(b,f);rb(b,e);c=we(a,b,c,d,f,e);if(null!==a&&!ia)return b.updateQueue=
|
|
a.updateQueue,b.effectTag&=-517,a.expirationTime<=e&&(a.expirationTime=0),sa(a,b,e);b.effectTag|=1;T(a,b,c,e);return b.child}function rh(a,b,c,d,e){if(N(c)){var f=!0;Bc(b)}else f=!1;rb(b,e);if(null===b.stateNode)null!==a&&(a.alternate=null,b.alternate=null,b.effectTag|=2),Yg(b,c,d),pe(b,c,d,e),d=!0;else if(null===a){var g=b.stateNode,h=b.memoizedProps;g.props=h;var m=g.context,n=c.contextType;"object"===typeof n&&null!==n?n=W(n):(n=N(c)?Ra:B.current,n=pb(b,n));var l=c.getDerivedStateFromProps,k="function"===
|
|
typeof l||"function"===typeof g.getSnapshotBeforeUpdate;k||"function"!==typeof g.UNSAFE_componentWillReceiveProps&&"function"!==typeof g.componentWillReceiveProps||(h!==d||m!==n)&&Zg(b,g,d,n);Ga=!1;var p=b.memoizedState;g.state=p;Qb(b,d,g,e);m=b.memoizedState;h!==d||p!==m||G.current||Ga?("function"===typeof l&&(Lc(b,c,l,d),m=b.memoizedState),(h=Ga||Xg(b,c,h,d,p,m,n))?(k||"function"!==typeof g.UNSAFE_componentWillMount&&"function"!==typeof g.componentWillMount||("function"===typeof g.componentWillMount&&
|
|
g.componentWillMount(),"function"===typeof g.UNSAFE_componentWillMount&&g.UNSAFE_componentWillMount()),"function"===typeof g.componentDidMount&&(b.effectTag|=4)):("function"===typeof g.componentDidMount&&(b.effectTag|=4),b.memoizedProps=d,b.memoizedState=m),g.props=d,g.state=m,g.context=n,d=h):("function"===typeof g.componentDidMount&&(b.effectTag|=4),d=!1)}else g=b.stateNode,oe(a,b),h=b.memoizedProps,g.props=b.type===b.elementType?h:aa(b.type,h),m=g.context,n=c.contextType,"object"===typeof n&&null!==
|
|
n?n=W(n):(n=N(c)?Ra:B.current,n=pb(b,n)),l=c.getDerivedStateFromProps,(k="function"===typeof l||"function"===typeof g.getSnapshotBeforeUpdate)||"function"!==typeof g.UNSAFE_componentWillReceiveProps&&"function"!==typeof g.componentWillReceiveProps||(h!==d||m!==n)&&Zg(b,g,d,n),Ga=!1,m=b.memoizedState,g.state=m,Qb(b,d,g,e),p=b.memoizedState,h!==d||m!==p||G.current||Ga?("function"===typeof l&&(Lc(b,c,l,d),p=b.memoizedState),(l=Ga||Xg(b,c,h,d,m,p,n))?(k||"function"!==typeof g.UNSAFE_componentWillUpdate&&
|
|
"function"!==typeof g.componentWillUpdate||("function"===typeof g.componentWillUpdate&&g.componentWillUpdate(d,p,n),"function"===typeof g.UNSAFE_componentWillUpdate&&g.UNSAFE_componentWillUpdate(d,p,n)),"function"===typeof g.componentDidUpdate&&(b.effectTag|=4),"function"===typeof g.getSnapshotBeforeUpdate&&(b.effectTag|=256)):("function"!==typeof g.componentDidUpdate||h===a.memoizedProps&&m===a.memoizedState||(b.effectTag|=4),"function"!==typeof g.getSnapshotBeforeUpdate||h===a.memoizedProps&&m===
|
|
a.memoizedState||(b.effectTag|=256),b.memoizedProps=d,b.memoizedState=p),g.props=d,g.state=p,g.context=n,d=l):("function"!==typeof g.componentDidUpdate||h===a.memoizedProps&&m===a.memoizedState||(b.effectTag|=4),"function"!==typeof g.getSnapshotBeforeUpdate||h===a.memoizedProps&&m===a.memoizedState||(b.effectTag|=256),d=!1);return Ie(a,b,c,d,f,e)}function Ie(a,b,c,d,e,f){qh(a,b);var g=0!==(b.effectTag&64);if(!d&&!g)return e&&Hg(b,c,!1),sa(a,b,f);d=b.stateNode;gj.current=b;var h=g&&"function"!==typeof c.getDerivedStateFromError?
|
|
null:d.render();b.effectTag|=1;null!==a&&g?(b.child=wb(b,a.child,null,f),b.child=wb(b,null,h,f)):T(a,b,h,f);b.memoizedState=d.state;e&&Hg(b,c,!0);return b.child}function sh(a){var b=a.stateNode;b.pendingContext?Fg(a,b.pendingContext,b.pendingContext!==b.context):b.context&&Fg(a,b.context,!1);se(a,b.containerInfo)}function th(a,b,c){var d=b.mode,e=b.pendingProps,f=D.current,g=!1,h;(h=0!==(b.effectTag&64))||(h=0!==(f&2)&&(null===a||null!==a.memoizedState));h?(g=!0,b.effectTag&=-65):null!==a&&null===
|
|
a.memoizedState||void 0===e.fallback||!0===e.unstable_avoidThisFallback||(f|=1);y(D,f&1);if(null===a){void 0!==e.fallback&&De(b);if(g){g=e.fallback;e=Ha(null,d,0,null);e.return=b;if(0===(b.mode&2))for(a=null!==b.memoizedState?b.child.child:b.child,e.child=a;null!==a;)a.return=e,a=a.sibling;c=Ha(g,d,c,null);c.return=b;e.sibling=c;b.memoizedState=Je;b.child=e;return c}d=e.children;b.memoizedState=null;return b.child=Fe(b,null,d,c)}if(null!==a.memoizedState){a=a.child;d=a.sibling;if(g){e=e.fallback;
|
|
c=Sa(a,a.pendingProps);c.return=b;if(0===(b.mode&2)&&(g=null!==b.memoizedState?b.child.child:b.child,g!==a.child))for(c.child=g;null!==g;)g.return=c,g=g.sibling;d=Sa(d,e);d.return=b;c.sibling=d;c.childExpirationTime=0;b.memoizedState=Je;b.child=c;return d}c=wb(b,a.child,e.children,c);b.memoizedState=null;return b.child=c}a=a.child;if(g){g=e.fallback;e=Ha(null,d,0,null);e.return=b;e.child=a;null!==a&&(a.return=e);if(0===(b.mode&2))for(a=null!==b.memoizedState?b.child.child:b.child,e.child=a;null!==
|
|
a;)a.return=e,a=a.sibling;c=Ha(g,d,c,null);c.return=b;e.sibling=c;c.effectTag|=2;e.childExpirationTime=0;b.memoizedState=Je;b.child=e;return c}b.memoizedState=null;return b.child=wb(b,a,e.children,c)}function uh(a,b){a.expirationTime<b&&(a.expirationTime=b);var c=a.alternate;null!==c&&c.expirationTime<b&&(c.expirationTime=b);Sg(a.return,b)}function Ke(a,b,c,d,e,f){var g=a.memoizedState;null===g?a.memoizedState={isBackwards:b,rendering:null,renderingStartTime:0,last:d,tail:c,tailExpiration:0,tailMode:e,
|
|
lastEffect:f}:(g.isBackwards=b,g.rendering=null,g.renderingStartTime=0,g.last=d,g.tail=c,g.tailExpiration=0,g.tailMode=e,g.lastEffect=f)}function vh(a,b,c){var d=b.pendingProps,e=d.revealOrder,f=d.tail;T(a,b,d.children,c);d=D.current;if(0!==(d&2))d=d&1|2,b.effectTag|=64;else{if(null!==a&&0!==(a.effectTag&64))a:for(a=b.child;null!==a;){if(13===a.tag)null!==a.memoizedState&&uh(a,c);else if(19===a.tag)uh(a,c);else if(null!==a.child){a.child.return=a;a=a.child;continue}if(a===b)break a;for(;null===a.sibling;){if(null===
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a.return||a.return===b)break a;a=a.return}a.sibling.return=a.return;a=a.sibling}d&=1}y(D,d);if(0===(b.mode&2))b.memoizedState=null;else switch(e){case "forwards":c=b.child;for(e=null;null!==c;)a=c.alternate,null!==a&&null===Rc(a)&&(e=c),c=c.sibling;c=e;null===c?(e=b.child,b.child=null):(e=c.sibling,c.sibling=null);Ke(b,!1,e,c,f,b.lastEffect);break;case "backwards":c=null;e=b.child;for(b.child=null;null!==e;){a=e.alternate;if(null!==a&&null===Rc(a)){b.child=e;break}a=e.sibling;e.sibling=c;c=e;e=a}Ke(b,
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|
!0,c,null,f,b.lastEffect);break;case "together":Ke(b,!1,null,null,void 0,b.lastEffect);break;default:b.memoizedState=null}return b.child}function sa(a,b,c){null!==a&&(b.dependencies=a.dependencies);var d=b.expirationTime;0!==d&&Kc(d);if(b.childExpirationTime<c)return null;if(null!==a&&b.child!==a.child)throw Error(k(153));if(null!==b.child){a=b.child;c=Sa(a,a.pendingProps);b.child=c;for(c.return=b;null!==a.sibling;)a=a.sibling,c=c.sibling=Sa(a,a.pendingProps),c.return=b;c.sibling=null}return b.child}
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|
function $c(a,b){switch(a.tailMode){case "hidden":b=a.tail;for(var c=null;null!==b;)null!==b.alternate&&(c=b),b=b.sibling;null===c?a.tail=null:c.sibling=null;break;case "collapsed":c=a.tail;for(var d=null;null!==c;)null!==c.alternate&&(d=c),c=c.sibling;null===d?b||null===a.tail?a.tail=null:a.tail.sibling=null:d.sibling=null}}function hj(a,b,c){var d=b.pendingProps;switch(b.tag){case 2:case 16:case 15:case 0:case 11:case 7:case 8:case 12:case 9:case 14:return null;case 1:return N(b.type)&&(q(G),q(B)),
|
|
null;case 3:return tb(),q(G),q(B),c=b.stateNode,c.pendingContext&&(c.context=c.pendingContext,c.pendingContext=null),null!==a&&null!==a.child||!Zc(b)||(b.effectTag|=4),wh(b),null;case 5:te(b);c=Ta(Tb.current);var e=b.type;if(null!==a&&null!=b.stateNode)ij(a,b,e,d,c),a.ref!==b.ref&&(b.effectTag|=128);else{if(!d){if(null===b.stateNode)throw Error(k(166));return null}a=Ta(ja.current);if(Zc(b)){d=b.stateNode;e=b.type;var f=b.memoizedProps;d[Aa]=b;d[vc]=f;switch(e){case "iframe":case "object":case "embed":w("load",
|
|
d);break;case "video":case "audio":for(a=0;a<Db.length;a++)w(Db[a],d);break;case "source":w("error",d);break;case "img":case "image":case "link":w("error",d);w("load",d);break;case "form":w("reset",d);w("submit",d);break;case "details":w("toggle",d);break;case "input":Hf(d,f);w("invalid",d);oa(c,"onChange");break;case "select":d._wrapperState={wasMultiple:!!f.multiple};w("invalid",d);oa(c,"onChange");break;case "textarea":Kf(d,f),w("invalid",d),oa(c,"onChange")}Ud(e,f);a=null;for(var g in f)if(f.hasOwnProperty(g)){var h=
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f[g];"children"===g?"string"===typeof h?d.textContent!==h&&(a=["children",h]):"number"===typeof h&&d.textContent!==""+h&&(a=["children",""+h]):db.hasOwnProperty(g)&&null!=h&&oa(c,g)}switch(e){case "input":mc(d);Jf(d,f,!0);break;case "textarea":mc(d);Mf(d);break;case "select":case "option":break;default:"function"===typeof f.onClick&&(d.onclick=uc)}c=a;b.updateQueue=c;null!==c&&(b.effectTag|=4)}else{g=9===c.nodeType?c:c.ownerDocument;"http://www.w3.org/1999/xhtml"===a&&(a=Nf(e));"http://www.w3.org/1999/xhtml"===
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|
a?"script"===e?(a=g.createElement("div"),a.innerHTML="<script>\x3c/script>",a=a.removeChild(a.firstChild)):"string"===typeof d.is?a=g.createElement(e,{is:d.is}):(a=g.createElement(e),"select"===e&&(g=a,d.multiple?g.multiple=!0:d.size&&(g.size=d.size))):a=g.createElementNS(a,e);a[Aa]=b;a[vc]=d;jj(a,b,!1,!1);b.stateNode=a;g=Vd(e,d);switch(e){case "iframe":case "object":case "embed":w("load",a);h=d;break;case "video":case "audio":for(h=0;h<Db.length;h++)w(Db[h],a);h=d;break;case "source":w("error",a);
|
|
h=d;break;case "img":case "image":case "link":w("error",a);w("load",a);h=d;break;case "form":w("reset",a);w("submit",a);h=d;break;case "details":w("toggle",a);h=d;break;case "input":Hf(a,d);h=Cd(a,d);w("invalid",a);oa(c,"onChange");break;case "option":h=Fd(a,d);break;case "select":a._wrapperState={wasMultiple:!!d.multiple};h=M({},d,{value:void 0});w("invalid",a);oa(c,"onChange");break;case "textarea":Kf(a,d);h=Gd(a,d);w("invalid",a);oa(c,"onChange");break;default:h=d}Ud(e,h);var m=h;for(f in m)if(m.hasOwnProperty(f)){var n=
|
|
m[f];"style"===f?gg(a,n):"dangerouslySetInnerHTML"===f?(n=n?n.__html:void 0,null!=n&&xh(a,n)):"children"===f?"string"===typeof n?("textarea"!==e||""!==n)&&Wb(a,n):"number"===typeof n&&Wb(a,""+n):"suppressContentEditableWarning"!==f&&"suppressHydrationWarning"!==f&&"autoFocus"!==f&&(db.hasOwnProperty(f)?null!=n&&oa(c,f):null!=n&&xd(a,f,n,g))}switch(e){case "input":mc(a);Jf(a,d,!1);break;case "textarea":mc(a);Mf(a);break;case "option":null!=d.value&&a.setAttribute("value",""+va(d.value));break;case "select":a.multiple=
|
|
!!d.multiple;c=d.value;null!=c?hb(a,!!d.multiple,c,!1):null!=d.defaultValue&&hb(a,!!d.multiple,d.defaultValue,!0);break;default:"function"===typeof h.onClick&&(a.onclick=uc)}lg(e,d)&&(b.effectTag|=4)}null!==b.ref&&(b.effectTag|=128)}return null;case 6:if(a&&null!=b.stateNode)kj(a,b,a.memoizedProps,d);else{if("string"!==typeof d&&null===b.stateNode)throw Error(k(166));c=Ta(Tb.current);Ta(ja.current);Zc(b)?(c=b.stateNode,d=b.memoizedProps,c[Aa]=b,c.nodeValue!==d&&(b.effectTag|=4)):(c=(9===c.nodeType?
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|
c:c.ownerDocument).createTextNode(d),c[Aa]=b,b.stateNode=c)}return null;case 13:q(D);d=b.memoizedState;if(0!==(b.effectTag&64))return b.expirationTime=c,b;c=null!==d;d=!1;null===a?void 0!==b.memoizedProps.fallback&&Zc(b):(e=a.memoizedState,d=null!==e,c||null===e||(e=a.child.sibling,null!==e&&(f=b.firstEffect,null!==f?(b.firstEffect=e,e.nextEffect=f):(b.firstEffect=b.lastEffect=e,e.nextEffect=null),e.effectTag=8)));if(c&&!d&&0!==(b.mode&2))if(null===a&&!0!==b.memoizedProps.unstable_avoidThisFallback||
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|
0!==(D.current&1))F===Xa&&(F=ad);else{if(F===Xa||F===ad)F=bd;0!==Xb&&null!==U&&(Ya(U,P),yh(U,Xb))}if(c||d)b.effectTag|=4;return null;case 4:return tb(),wh(b),null;case 10:return me(b),null;case 17:return N(b.type)&&(q(G),q(B)),null;case 19:q(D);d=b.memoizedState;if(null===d)return null;e=0!==(b.effectTag&64);f=d.rendering;if(null===f)if(e)$c(d,!1);else{if(F!==Xa||null!==a&&0!==(a.effectTag&64))for(f=b.child;null!==f;){a=Rc(f);if(null!==a){b.effectTag|=64;$c(d,!1);e=a.updateQueue;null!==e&&(b.updateQueue=
|
|
e,b.effectTag|=4);null===d.lastEffect&&(b.firstEffect=null);b.lastEffect=d.lastEffect;for(d=b.child;null!==d;)e=d,f=c,e.effectTag&=2,e.nextEffect=null,e.firstEffect=null,e.lastEffect=null,a=e.alternate,null===a?(e.childExpirationTime=0,e.expirationTime=f,e.child=null,e.memoizedProps=null,e.memoizedState=null,e.updateQueue=null,e.dependencies=null):(e.childExpirationTime=a.childExpirationTime,e.expirationTime=a.expirationTime,e.child=a.child,e.memoizedProps=a.memoizedProps,e.memoizedState=a.memoizedState,
|
|
e.updateQueue=a.updateQueue,f=a.dependencies,e.dependencies=null===f?null:{expirationTime:f.expirationTime,firstContext:f.firstContext,responders:f.responders}),d=d.sibling;y(D,D.current&1|2);return b.child}f=f.sibling}}else{if(!e)if(a=Rc(f),null!==a){if(b.effectTag|=64,e=!0,c=a.updateQueue,null!==c&&(b.updateQueue=c,b.effectTag|=4),$c(d,!0),null===d.tail&&"hidden"===d.tailMode&&!f.alternate)return b=b.lastEffect=d.lastEffect,null!==b&&(b.nextEffect=null),null}else 2*Y()-d.renderingStartTime>d.tailExpiration&&
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|
1<c&&(b.effectTag|=64,e=!0,$c(d,!1),b.expirationTime=b.childExpirationTime=c-1);d.isBackwards?(f.sibling=b.child,b.child=f):(c=d.last,null!==c?c.sibling=f:b.child=f,d.last=f)}return null!==d.tail?(0===d.tailExpiration&&(d.tailExpiration=Y()+500),c=d.tail,d.rendering=c,d.tail=c.sibling,d.lastEffect=b.lastEffect,d.renderingStartTime=Y(),c.sibling=null,b=D.current,y(D,e?b&1|2:b&1),c):null}throw Error(k(156,b.tag));}function lj(a,b){switch(a.tag){case 1:return N(a.type)&&(q(G),q(B)),b=a.effectTag,b&4096?
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|
(a.effectTag=b&-4097|64,a):null;case 3:tb();q(G);q(B);b=a.effectTag;if(0!==(b&64))throw Error(k(285));a.effectTag=b&-4097|64;return a;case 5:return te(a),null;case 13:return q(D),b=a.effectTag,b&4096?(a.effectTag=b&-4097|64,a):null;case 19:return q(D),null;case 4:return tb(),null;case 10:return me(a),null;default:return null}}function Le(a,b){return{value:a,source:b,stack:Bd(b)}}function Me(a,b){var c=b.source,d=b.stack;null===d&&null!==c&&(d=Bd(c));null!==c&&na(c.type);b=b.value;null!==a&&1===a.tag&&
|
|
na(a.type);try{console.error(b)}catch(e){setTimeout(function(){throw e;})}}function mj(a,b){try{b.props=a.memoizedProps,b.state=a.memoizedState,b.componentWillUnmount()}catch(c){Za(a,c)}}function zh(a){var b=a.ref;if(null!==b)if("function"===typeof b)try{b(null)}catch(c){Za(a,c)}else b.current=null}function nj(a,b){switch(b.tag){case 0:case 11:case 15:case 22:return;case 1:if(b.effectTag&256&&null!==a){var c=a.memoizedProps,d=a.memoizedState;a=b.stateNode;b=a.getSnapshotBeforeUpdate(b.elementType===
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|
b.type?c:aa(b.type,c),d);a.__reactInternalSnapshotBeforeUpdate=b}return;case 3:case 5:case 6:case 4:case 17:return}throw Error(k(163));}function Ah(a,b){b=b.updateQueue;b=null!==b?b.lastEffect:null;if(null!==b){var c=b=b.next;do{if((c.tag&a)===a){var d=c.destroy;c.destroy=void 0;void 0!==d&&d()}c=c.next}while(c!==b)}}function Bh(a,b){b=b.updateQueue;b=null!==b?b.lastEffect:null;if(null!==b){var c=b=b.next;do{if((c.tag&a)===a){var d=c.create;c.destroy=d()}c=c.next}while(c!==b)}}function oj(a,b,c,d){switch(c.tag){case 0:case 11:case 15:case 22:Bh(3,
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|
c);return;case 1:a=c.stateNode;c.effectTag&4&&(null===b?a.componentDidMount():(d=c.elementType===c.type?b.memoizedProps:aa(c.type,b.memoizedProps),a.componentDidUpdate(d,b.memoizedState,a.__reactInternalSnapshotBeforeUpdate)));b=c.updateQueue;null!==b&&Wg(c,b,a);return;case 3:b=c.updateQueue;if(null!==b){a=null;if(null!==c.child)switch(c.child.tag){case 5:a=c.child.stateNode;break;case 1:a=c.child.stateNode}Wg(c,b,a)}return;case 5:a=c.stateNode;null===b&&c.effectTag&4&&lg(c.type,c.memoizedProps)&&
|
|
a.focus();return;case 6:return;case 4:return;case 12:return;case 13:null===c.memoizedState&&(c=c.alternate,null!==c&&(c=c.memoizedState,null!==c&&(c=c.dehydrated,null!==c&&bg(c))));return;case 19:case 17:case 20:case 21:return}throw Error(k(163));}function Ch(a,b,c){"function"===typeof Ne&&Ne(b);switch(b.tag){case 0:case 11:case 14:case 15:case 22:a=b.updateQueue;if(null!==a&&(a=a.lastEffect,null!==a)){var d=a.next;Da(97<c?97:c,function(){var a=d;do{var c=a.destroy;if(void 0!==c){var g=b;try{c()}catch(h){Za(g,
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|
h)}}a=a.next}while(a!==d)})}break;case 1:zh(b);c=b.stateNode;"function"===typeof c.componentWillUnmount&&mj(b,c);break;case 5:zh(b);break;case 4:Dh(a,b,c)}}function Eh(a){var b=a.alternate;a.return=null;a.child=null;a.memoizedState=null;a.updateQueue=null;a.dependencies=null;a.alternate=null;a.firstEffect=null;a.lastEffect=null;a.pendingProps=null;a.memoizedProps=null;a.stateNode=null;null!==b&&Eh(b)}function Fh(a){return 5===a.tag||3===a.tag||4===a.tag}function Gh(a){a:{for(var b=a.return;null!==
|
|
b;){if(Fh(b)){var c=b;break a}b=b.return}throw Error(k(160));}b=c.stateNode;switch(c.tag){case 5:var d=!1;break;case 3:b=b.containerInfo;d=!0;break;case 4:b=b.containerInfo;d=!0;break;default:throw Error(k(161));}c.effectTag&16&&(Wb(b,""),c.effectTag&=-17);a:b:for(c=a;;){for(;null===c.sibling;){if(null===c.return||Fh(c.return)){c=null;break a}c=c.return}c.sibling.return=c.return;for(c=c.sibling;5!==c.tag&&6!==c.tag&&18!==c.tag;){if(c.effectTag&2)continue b;if(null===c.child||4===c.tag)continue b;
|
|
else c.child.return=c,c=c.child}if(!(c.effectTag&2)){c=c.stateNode;break a}}d?Oe(a,c,b):Pe(a,c,b)}function Oe(a,b,c){var d=a.tag,e=5===d||6===d;if(e)a=e?a.stateNode:a.stateNode.instance,b?8===c.nodeType?c.parentNode.insertBefore(a,b):c.insertBefore(a,b):(8===c.nodeType?(b=c.parentNode,b.insertBefore(a,c)):(b=c,b.appendChild(a)),c=c._reactRootContainer,null!==c&&void 0!==c||null!==b.onclick||(b.onclick=uc));else if(4!==d&&(a=a.child,null!==a))for(Oe(a,b,c),a=a.sibling;null!==a;)Oe(a,b,c),a=a.sibling}
|
|
function Pe(a,b,c){var d=a.tag,e=5===d||6===d;if(e)a=e?a.stateNode:a.stateNode.instance,b?c.insertBefore(a,b):c.appendChild(a);else if(4!==d&&(a=a.child,null!==a))for(Pe(a,b,c),a=a.sibling;null!==a;)Pe(a,b,c),a=a.sibling}function Dh(a,b,c){for(var d=b,e=!1,f,g;;){if(!e){e=d.return;a:for(;;){if(null===e)throw Error(k(160));f=e.stateNode;switch(e.tag){case 5:g=!1;break a;case 3:f=f.containerInfo;g=!0;break a;case 4:f=f.containerInfo;g=!0;break a}e=e.return}e=!0}if(5===d.tag||6===d.tag){a:for(var h=
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a,m=d,n=c,l=m;;)if(Ch(h,l,n),null!==l.child&&4!==l.tag)l.child.return=l,l=l.child;else{if(l===m)break a;for(;null===l.sibling;){if(null===l.return||l.return===m)break a;l=l.return}l.sibling.return=l.return;l=l.sibling}g?(h=f,m=d.stateNode,8===h.nodeType?h.parentNode.removeChild(m):h.removeChild(m)):f.removeChild(d.stateNode)}else if(4===d.tag){if(null!==d.child){f=d.stateNode.containerInfo;g=!0;d.child.return=d;d=d.child;continue}}else if(Ch(a,d,c),null!==d.child){d.child.return=d;d=d.child;continue}if(d===
|
|
b)break;for(;null===d.sibling;){if(null===d.return||d.return===b)return;d=d.return;4===d.tag&&(e=!1)}d.sibling.return=d.return;d=d.sibling}}function Qe(a,b){switch(b.tag){case 0:case 11:case 14:case 15:case 22:Ah(3,b);return;case 1:return;case 5:var c=b.stateNode;if(null!=c){var d=b.memoizedProps,e=null!==a?a.memoizedProps:d;a=b.type;var f=b.updateQueue;b.updateQueue=null;if(null!==f){c[vc]=d;"input"===a&&"radio"===d.type&&null!=d.name&&If(c,d);Vd(a,e);b=Vd(a,d);for(e=0;e<f.length;e+=2){var g=f[e],
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h=f[e+1];"style"===g?gg(c,h):"dangerouslySetInnerHTML"===g?xh(c,h):"children"===g?Wb(c,h):xd(c,g,h,b)}switch(a){case "input":Dd(c,d);break;case "textarea":Lf(c,d);break;case "select":b=c._wrapperState.wasMultiple,c._wrapperState.wasMultiple=!!d.multiple,a=d.value,null!=a?hb(c,!!d.multiple,a,!1):b!==!!d.multiple&&(null!=d.defaultValue?hb(c,!!d.multiple,d.defaultValue,!0):hb(c,!!d.multiple,d.multiple?[]:"",!1))}}}return;case 6:if(null===b.stateNode)throw Error(k(162));b.stateNode.nodeValue=b.memoizedProps;
|
|
return;case 3:b=b.stateNode;b.hydrate&&(b.hydrate=!1,bg(b.containerInfo));return;case 12:return;case 13:c=b;null===b.memoizedState?d=!1:(d=!0,c=b.child,Re=Y());if(null!==c)a:for(a=c;;){if(5===a.tag)f=a.stateNode,d?(f=f.style,"function"===typeof f.setProperty?f.setProperty("display","none","important"):f.display="none"):(f=a.stateNode,e=a.memoizedProps.style,e=void 0!==e&&null!==e&&e.hasOwnProperty("display")?e.display:null,f.style.display=fg("display",e));else if(6===a.tag)a.stateNode.nodeValue=d?
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|
"":a.memoizedProps;else if(13===a.tag&&null!==a.memoizedState&&null===a.memoizedState.dehydrated){f=a.child.sibling;f.return=a;a=f;continue}else if(null!==a.child){a.child.return=a;a=a.child;continue}if(a===c)break;for(;null===a.sibling;){if(null===a.return||a.return===c)break a;a=a.return}a.sibling.return=a.return;a=a.sibling}Hh(b);return;case 19:Hh(b);return;case 17:return}throw Error(k(163));}function Hh(a){var b=a.updateQueue;if(null!==b){a.updateQueue=null;var c=a.stateNode;null===c&&(c=a.stateNode=
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new pj);b.forEach(function(b){var d=qj.bind(null,a,b);c.has(b)||(c.add(b),b.then(d,d))})}}function Ih(a,b,c){c=Ea(c,null);c.tag=3;c.payload={element:null};var d=b.value;c.callback=function(){cd||(cd=!0,Se=d);Me(a,b)};return c}function Jh(a,b,c){c=Ea(c,null);c.tag=3;var d=a.type.getDerivedStateFromError;if("function"===typeof d){var e=b.value;c.payload=function(){Me(a,b);return d(e)}}var f=a.stateNode;null!==f&&"function"===typeof f.componentDidCatch&&(c.callback=function(){"function"!==typeof d&&
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|
(null===La?La=new Set([this]):La.add(this),Me(a,b));var c=b.stack;this.componentDidCatch(b.value,{componentStack:null!==c?c:""})});return c}function ka(){return(p&(ca|ma))!==H?1073741821-(Y()/10|0):0!==dd?dd:dd=1073741821-(Y()/10|0)}function Va(a,b,c){b=b.mode;if(0===(b&2))return 1073741823;var d=Cc();if(0===(b&4))return 99===d?1073741823:1073741822;if((p&ca)!==H)return P;if(null!==c)a=Fc(a,c.timeoutMs|0||5E3,250);else switch(d){case 99:a=1073741823;break;case 98:a=Fc(a,150,100);break;case 97:case 96:a=
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Fc(a,5E3,250);break;case 95:a=2;break;default:throw Error(k(326));}null!==U&&a===P&&--a;return a}function ed(a,b){a.expirationTime<b&&(a.expirationTime=b);var c=a.alternate;null!==c&&c.expirationTime<b&&(c.expirationTime=b);var d=a.return,e=null;if(null===d&&3===a.tag)e=a.stateNode;else for(;null!==d;){c=d.alternate;d.childExpirationTime<b&&(d.childExpirationTime=b);null!==c&&c.childExpirationTime<b&&(c.childExpirationTime=b);if(null===d.return&&3===d.tag){e=d.stateNode;break}d=d.return}null!==e&&
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|
(U===e&&(Kc(b),F===bd&&Ya(e,P)),yh(e,b));return e}function fd(a){var b=a.lastExpiredTime;if(0!==b)return b;b=a.firstPendingTime;if(!Kh(a,b))return b;var c=a.lastPingedTime;a=a.nextKnownPendingLevel;a=c>a?c:a;return 2>=a&&b!==a?0:a}function V(a){if(0!==a.lastExpiredTime)a.callbackExpirationTime=1073741823,a.callbackPriority=99,a.callbackNode=Og(Te.bind(null,a));else{var b=fd(a),c=a.callbackNode;if(0===b)null!==c&&(a.callbackNode=null,a.callbackExpirationTime=0,a.callbackPriority=90);else{var d=ka();
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1073741823===b?d=99:1===b||2===b?d=95:(d=10*(1073741821-b)-10*(1073741821-d),d=0>=d?99:250>=d?98:5250>=d?97:95);if(null!==c){var e=a.callbackPriority;if(a.callbackExpirationTime===b&&e>=d)return;c!==Qg&&Rg(c)}a.callbackExpirationTime=b;a.callbackPriority=d;b=1073741823===b?Og(Te.bind(null,a)):Ng(d,Lh.bind(null,a),{timeout:10*(1073741821-b)-Y()});a.callbackNode=b}}}function Lh(a,b){dd=0;if(b)return b=ka(),Ue(a,b),V(a),null;var c=fd(a);if(0!==c){b=a.callbackNode;if((p&(ca|ma))!==H)throw Error(k(327));
|
|
xb();a===U&&c===P||$a(a,c);if(null!==t){var d=p;p|=ca;var e=Mh();do try{rj();break}catch(h){Nh(a,h)}while(1);le();p=d;gd.current=e;if(F===hd)throw b=id,$a(a,c),Ya(a,c),V(a),b;if(null===t)switch(e=a.finishedWork=a.current.alternate,a.finishedExpirationTime=c,d=F,U=null,d){case Xa:case hd:throw Error(k(345));case Oh:Ue(a,2<c?2:c);break;case ad:Ya(a,c);d=a.lastSuspendedTime;c===d&&(a.nextKnownPendingLevel=Ve(e));if(1073741823===ta&&(e=Re+Ph-Y(),10<e)){if(jd){var f=a.lastPingedTime;if(0===f||f>=c){a.lastPingedTime=
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c;$a(a,c);break}}f=fd(a);if(0!==f&&f!==c)break;if(0!==d&&d!==c){a.lastPingedTime=d;break}a.timeoutHandle=We(ab.bind(null,a),e);break}ab(a);break;case bd:Ya(a,c);d=a.lastSuspendedTime;c===d&&(a.nextKnownPendingLevel=Ve(e));if(jd&&(e=a.lastPingedTime,0===e||e>=c)){a.lastPingedTime=c;$a(a,c);break}e=fd(a);if(0!==e&&e!==c)break;if(0!==d&&d!==c){a.lastPingedTime=d;break}1073741823!==Yb?d=10*(1073741821-Yb)-Y():1073741823===ta?d=0:(d=10*(1073741821-ta)-5E3,e=Y(),c=10*(1073741821-c)-e,d=e-d,0>d&&(d=0),d=
|
|
(120>d?120:480>d?480:1080>d?1080:1920>d?1920:3E3>d?3E3:4320>d?4320:1960*sj(d/1960))-d,c<d&&(d=c));if(10<d){a.timeoutHandle=We(ab.bind(null,a),d);break}ab(a);break;case Xe:if(1073741823!==ta&&null!==kd){f=ta;var g=kd;d=g.busyMinDurationMs|0;0>=d?d=0:(e=g.busyDelayMs|0,f=Y()-(10*(1073741821-f)-(g.timeoutMs|0||5E3)),d=f<=e?0:e+d-f);if(10<d){Ya(a,c);a.timeoutHandle=We(ab.bind(null,a),d);break}}ab(a);break;default:throw Error(k(329));}V(a);if(a.callbackNode===b)return Lh.bind(null,a)}}return null}function Te(a){var b=
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|
a.lastExpiredTime;b=0!==b?b:1073741823;if((p&(ca|ma))!==H)throw Error(k(327));xb();a===U&&b===P||$a(a,b);if(null!==t){var c=p;p|=ca;var d=Mh();do try{tj();break}catch(e){Nh(a,e)}while(1);le();p=c;gd.current=d;if(F===hd)throw c=id,$a(a,b),Ya(a,b),V(a),c;if(null!==t)throw Error(k(261));a.finishedWork=a.current.alternate;a.finishedExpirationTime=b;U=null;ab(a);V(a)}return null}function uj(){if(null!==bb){var a=bb;bb=null;a.forEach(function(a,c){Ue(c,a);V(c)});ha()}}function Qh(a,b){var c=p;p|=1;try{return a(b)}finally{p=
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c,p===H&&ha()}}function Rh(a,b){var c=p;p&=-2;p|=Ye;try{return a(b)}finally{p=c,p===H&&ha()}}function $a(a,b){a.finishedWork=null;a.finishedExpirationTime=0;var c=a.timeoutHandle;-1!==c&&(a.timeoutHandle=-1,vj(c));if(null!==t)for(c=t.return;null!==c;){var d=c;switch(d.tag){case 1:d=d.type.childContextTypes;null!==d&&void 0!==d&&(q(G),q(B));break;case 3:tb();q(G);q(B);break;case 5:te(d);break;case 4:tb();break;case 13:q(D);break;case 19:q(D);break;case 10:me(d)}c=c.return}U=a;t=Sa(a.current,null);
|
|
P=b;F=Xa;id=null;Yb=ta=1073741823;kd=null;Xb=0;jd=!1}function Nh(a,b){do{try{le();Sc.current=Tc;if(Uc)for(var c=z.memoizedState;null!==c;){var d=c.queue;null!==d&&(d.pending=null);c=c.next}Ia=0;J=K=z=null;Uc=!1;if(null===t||null===t.return)return F=hd,id=b,t=null;a:{var e=a,f=t.return,g=t,h=b;b=P;g.effectTag|=2048;g.firstEffect=g.lastEffect=null;if(null!==h&&"object"===typeof h&&"function"===typeof h.then){var m=h;if(0===(g.mode&2)){var n=g.alternate;n?(g.updateQueue=n.updateQueue,g.memoizedState=
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n.memoizedState,g.expirationTime=n.expirationTime):(g.updateQueue=null,g.memoizedState=null)}var l=0!==(D.current&1),k=f;do{var p;if(p=13===k.tag){var q=k.memoizedState;if(null!==q)p=null!==q.dehydrated?!0:!1;else{var w=k.memoizedProps;p=void 0===w.fallback?!1:!0!==w.unstable_avoidThisFallback?!0:l?!1:!0}}if(p){var y=k.updateQueue;if(null===y){var r=new Set;r.add(m);k.updateQueue=r}else y.add(m);if(0===(k.mode&2)){k.effectTag|=64;g.effectTag&=-2981;if(1===g.tag)if(null===g.alternate)g.tag=17;else{var O=
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Ea(1073741823,null);O.tag=Jc;Fa(g,O)}g.expirationTime=1073741823;break a}h=void 0;g=b;var v=e.pingCache;null===v?(v=e.pingCache=new wj,h=new Set,v.set(m,h)):(h=v.get(m),void 0===h&&(h=new Set,v.set(m,h)));if(!h.has(g)){h.add(g);var x=xj.bind(null,e,m,g);m.then(x,x)}k.effectTag|=4096;k.expirationTime=b;break a}k=k.return}while(null!==k);h=Error((na(g.type)||"A React component")+" suspended while rendering, but no fallback UI was specified.\n\nAdd a <Suspense fallback=...> component higher in the tree to provide a loading indicator or placeholder to display."+
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|
Bd(g))}F!==Xe&&(F=Oh);h=Le(h,g);k=f;do{switch(k.tag){case 3:m=h;k.effectTag|=4096;k.expirationTime=b;var A=Ih(k,m,b);Ug(k,A);break a;case 1:m=h;var u=k.type,B=k.stateNode;if(0===(k.effectTag&64)&&("function"===typeof u.getDerivedStateFromError||null!==B&&"function"===typeof B.componentDidCatch&&(null===La||!La.has(B)))){k.effectTag|=4096;k.expirationTime=b;var H=Jh(k,m,b);Ug(k,H);break a}}k=k.return}while(null!==k)}t=Sh(t)}catch(cj){b=cj;continue}break}while(1)}function Mh(a){a=gd.current;gd.current=
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Tc;return null===a?Tc:a}function Vg(a,b){a<ta&&2<a&&(ta=a);null!==b&&a<Yb&&2<a&&(Yb=a,kd=b)}function Kc(a){a>Xb&&(Xb=a)}function tj(){for(;null!==t;)t=Th(t)}function rj(){for(;null!==t&&!yj();)t=Th(t)}function Th(a){var b=zj(a.alternate,a,P);a.memoizedProps=a.pendingProps;null===b&&(b=Sh(a));Uh.current=null;return b}function Sh(a){t=a;do{var b=t.alternate;a=t.return;if(0===(t.effectTag&2048)){b=hj(b,t,P);if(1===P||1!==t.childExpirationTime){for(var c=0,d=t.child;null!==d;){var e=d.expirationTime,
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f=d.childExpirationTime;e>c&&(c=e);f>c&&(c=f);d=d.sibling}t.childExpirationTime=c}if(null!==b)return b;null!==a&&0===(a.effectTag&2048)&&(null===a.firstEffect&&(a.firstEffect=t.firstEffect),null!==t.lastEffect&&(null!==a.lastEffect&&(a.lastEffect.nextEffect=t.firstEffect),a.lastEffect=t.lastEffect),1<t.effectTag&&(null!==a.lastEffect?a.lastEffect.nextEffect=t:a.firstEffect=t,a.lastEffect=t))}else{b=lj(t);if(null!==b)return b.effectTag&=2047,b;null!==a&&(a.firstEffect=a.lastEffect=null,a.effectTag|=
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|
2048)}b=t.sibling;if(null!==b)return b;t=a}while(null!==t);F===Xa&&(F=Xe);return null}function Ve(a){var b=a.expirationTime;a=a.childExpirationTime;return b>a?b:a}function ab(a){var b=Cc();Da(99,Aj.bind(null,a,b));return null}function Aj(a,b){do xb();while(null!==Zb);if((p&(ca|ma))!==H)throw Error(k(327));var c=a.finishedWork,d=a.finishedExpirationTime;if(null===c)return null;a.finishedWork=null;a.finishedExpirationTime=0;if(c===a.current)throw Error(k(177));a.callbackNode=null;a.callbackExpirationTime=
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|
0;a.callbackPriority=90;a.nextKnownPendingLevel=0;var e=Ve(c);a.firstPendingTime=e;d<=a.lastSuspendedTime?a.firstSuspendedTime=a.lastSuspendedTime=a.nextKnownPendingLevel=0:d<=a.firstSuspendedTime&&(a.firstSuspendedTime=d-1);d<=a.lastPingedTime&&(a.lastPingedTime=0);d<=a.lastExpiredTime&&(a.lastExpiredTime=0);a===U&&(t=U=null,P=0);1<c.effectTag?null!==c.lastEffect?(c.lastEffect.nextEffect=c,e=c.firstEffect):e=c:e=c.firstEffect;if(null!==e){var f=p;p|=ma;Uh.current=null;Ze=tc;var g=kg();if(Xd(g)){if("selectionStart"in
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|
g)var h={start:g.selectionStart,end:g.selectionEnd};else a:{h=(h=g.ownerDocument)&&h.defaultView||window;var m=h.getSelection&&h.getSelection();if(m&&0!==m.rangeCount){h=m.anchorNode;var n=m.anchorOffset,q=m.focusNode;m=m.focusOffset;try{h.nodeType,q.nodeType}catch(sb){h=null;break a}var ba=0,w=-1,y=-1,B=0,D=0,r=g,z=null;b:for(;;){for(var v;;){r!==h||0!==n&&3!==r.nodeType||(w=ba+n);r!==q||0!==m&&3!==r.nodeType||(y=ba+m);3===r.nodeType&&(ba+=r.nodeValue.length);if(null===(v=r.firstChild))break;z=r;
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|
r=v}for(;;){if(r===g)break b;z===h&&++B===n&&(w=ba);z===q&&++D===m&&(y=ba);if(null!==(v=r.nextSibling))break;r=z;z=r.parentNode}r=v}h=-1===w||-1===y?null:{start:w,end:y}}else h=null}h=h||{start:0,end:0}}else h=null;$e={activeElementDetached:null,focusedElem:g,selectionRange:h};tc=!1;l=e;do try{Bj()}catch(sb){if(null===l)throw Error(k(330));Za(l,sb);l=l.nextEffect}while(null!==l);l=e;do try{for(g=a,h=b;null!==l;){var x=l.effectTag;x&16&&Wb(l.stateNode,"");if(x&128){var A=l.alternate;if(null!==A){var u=
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|
A.ref;null!==u&&("function"===typeof u?u(null):u.current=null)}}switch(x&1038){case 2:Gh(l);l.effectTag&=-3;break;case 6:Gh(l);l.effectTag&=-3;Qe(l.alternate,l);break;case 1024:l.effectTag&=-1025;break;case 1028:l.effectTag&=-1025;Qe(l.alternate,l);break;case 4:Qe(l.alternate,l);break;case 8:n=l,Dh(g,n,h),Eh(n)}l=l.nextEffect}}catch(sb){if(null===l)throw Error(k(330));Za(l,sb);l=l.nextEffect}while(null!==l);u=$e;A=kg();x=u.focusedElem;h=u.selectionRange;if(A!==x&&x&&x.ownerDocument&&jg(x.ownerDocument.documentElement,
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|
x)){null!==h&&Xd(x)&&(A=h.start,u=h.end,void 0===u&&(u=A),"selectionStart"in x?(x.selectionStart=A,x.selectionEnd=Math.min(u,x.value.length)):(u=(A=x.ownerDocument||document)&&A.defaultView||window,u.getSelection&&(u=u.getSelection(),n=x.textContent.length,g=Math.min(h.start,n),h=void 0===h.end?g:Math.min(h.end,n),!u.extend&&g>h&&(n=h,h=g,g=n),n=ig(x,g),q=ig(x,h),n&&q&&(1!==u.rangeCount||u.anchorNode!==n.node||u.anchorOffset!==n.offset||u.focusNode!==q.node||u.focusOffset!==q.offset)&&(A=A.createRange(),
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|
A.setStart(n.node,n.offset),u.removeAllRanges(),g>h?(u.addRange(A),u.extend(q.node,q.offset)):(A.setEnd(q.node,q.offset),u.addRange(A))))));A=[];for(u=x;u=u.parentNode;)1===u.nodeType&&A.push({element:u,left:u.scrollLeft,top:u.scrollTop});"function"===typeof x.focus&&x.focus();for(x=0;x<A.length;x++)u=A[x],u.element.scrollLeft=u.left,u.element.scrollTop=u.top}tc=!!Ze;$e=Ze=null;a.current=c;l=e;do try{for(x=a;null!==l;){var F=l.effectTag;F&36&&oj(x,l.alternate,l);if(F&128){A=void 0;var E=l.ref;if(null!==
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|
E){var G=l.stateNode;switch(l.tag){case 5:A=G;break;default:A=G}"function"===typeof E?E(A):E.current=A}}l=l.nextEffect}}catch(sb){if(null===l)throw Error(k(330));Za(l,sb);l=l.nextEffect}while(null!==l);l=null;Cj();p=f}else a.current=c;if(ld)ld=!1,Zb=a,$b=b;else for(l=e;null!==l;)b=l.nextEffect,l.nextEffect=null,l=b;b=a.firstPendingTime;0===b&&(La=null);1073741823===b?a===af?ac++:(ac=0,af=a):ac=0;"function"===typeof bf&&bf(c.stateNode,d);V(a);if(cd)throw cd=!1,a=Se,Se=null,a;if((p&Ye)!==H)return null;
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ua.compositionUpdate;break b}g=void 0}else mb?tg(a,c)&&(g=ua.compositionEnd):"keydown"===a&&229===c.keyCode&&(g=ua.compositionStart);g?(xg&&"ko"!==c.locale&&(mb||g!==ua.compositionStart?g===ua.compositionEnd&&mb&&(f=rg()):(Ba=d,ce="value"in Ba?Ba.value:Ba.textContent,mb=!0)),e=Tj.getPooled(g,b,c,d),f?e.data=f:(f=ug(c),null!==f&&(e.data=f)),lb(e),f=e):f=null;(a=Vj?Oi(a,c):Pi(a,c))?(b=Uj.getPooled(ua.beforeInput,b,c,d),b.data=a,lb(b)):b=null;return null===f?b:null===b?f:[f,b]}},Qi={color:!0,date:!0,
|
|
datetime:!0,"datetime-local":!0,email:!0,month:!0,number:!0,password:!0,range:!0,search:!0,tel:!0,text:!0,time:!0,url:!0,week:!0},Ag={change:{phasedRegistrationNames:{bubbled:"onChange",captured:"onChangeCapture"},dependencies:"blur change click focus input keydown keyup selectionchange".split(" ")}},Mb=null,Nb=null,kf=!1;wa&&(kf=Tf("input")&&(!document.documentMode||9<document.documentMode));var Xj={eventTypes:Ag,_isInputEventSupported:kf,extractEvents:function(a,b,c,d,e){e=b?Pa(b):window;var f=
|
|
e.nodeName&&e.nodeName.toLowerCase();if("select"===f||"input"===f&&"file"===e.type)var g=Si;else if(yg(e))if(kf)g=Wi;else{g=Ui;var h=Ti}else(f=e.nodeName)&&"input"===f.toLowerCase()&&("checkbox"===e.type||"radio"===e.type)&&(g=Vi);if(g&&(g=g(a,b)))return zg(g,c,d);h&&h(a,e,b);"blur"===a&&(a=e._wrapperState)&&a.controlled&&"number"===e.type&&Ed(e,"number",e.value)}},dc=R.extend({view:null,detail:null}),Yi={Alt:"altKey",Control:"ctrlKey",Meta:"metaKey",Shift:"shiftKey"},di=0,ei=0,fi=!1,gi=!1,ec=dc.extend({screenX:null,
|
|
screenY:null,clientX:null,clientY:null,pageX:null,pageY:null,ctrlKey:null,shiftKey:null,altKey:null,metaKey:null,getModifierState:fe,button:null,buttons:null,relatedTarget:function(a){return a.relatedTarget||(a.fromElement===a.srcElement?a.toElement:a.fromElement)},movementX:function(a){if("movementX"in a)return a.movementX;var b=di;di=a.screenX;return fi?"mousemove"===a.type?a.screenX-b:0:(fi=!0,0)},movementY:function(a){if("movementY"in a)return a.movementY;var b=ei;ei=a.screenY;return gi?"mousemove"===
|
|
a.type?a.screenY-b:0:(gi=!0,0)}}),hi=ec.extend({pointerId:null,width:null,height:null,pressure:null,tangentialPressure:null,tiltX:null,tiltY:null,twist:null,pointerType:null,isPrimary:null}),fc={mouseEnter:{registrationName:"onMouseEnter",dependencies:["mouseout","mouseover"]},mouseLeave:{registrationName:"onMouseLeave",dependencies:["mouseout","mouseover"]},pointerEnter:{registrationName:"onPointerEnter",dependencies:["pointerout","pointerover"]},pointerLeave:{registrationName:"onPointerLeave",dependencies:["pointerout",
|
|
"pointerover"]}},Yj={eventTypes:fc,extractEvents:function(a,b,c,d,e){var f="mouseover"===a||"pointerover"===a,g="mouseout"===a||"pointerout"===a;if(f&&0===(e&32)&&(c.relatedTarget||c.fromElement)||!g&&!f)return null;f=d.window===d?d:(f=d.ownerDocument)?f.defaultView||f.parentWindow:window;if(g){if(g=b,b=(b=c.relatedTarget||c.toElement)?Bb(b):null,null!==b){var h=Na(b);if(b!==h||5!==b.tag&&6!==b.tag)b=null}}else g=null;if(g===b)return null;if("mouseout"===a||"mouseover"===a){var m=ec;var n=fc.mouseLeave;
|
|
var l=fc.mouseEnter;var k="mouse"}else if("pointerout"===a||"pointerover"===a)m=hi,n=fc.pointerLeave,l=fc.pointerEnter,k="pointer";a=null==g?f:Pa(g);f=null==b?f:Pa(b);n=m.getPooled(n,g,c,d);n.type=k+"leave";n.target=a;n.relatedTarget=f;c=m.getPooled(l,b,c,d);c.type=k+"enter";c.target=f;c.relatedTarget=a;d=g;k=b;if(d&&k)a:{m=d;l=k;g=0;for(a=m;a;a=pa(a))g++;a=0;for(b=l;b;b=pa(b))a++;for(;0<g-a;)m=pa(m),g--;for(;0<a-g;)l=pa(l),a--;for(;g--;){if(m===l||m===l.alternate)break a;m=pa(m);l=pa(l)}m=null}else m=
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null;l=m;for(m=[];d&&d!==l;){g=d.alternate;if(null!==g&&g===l)break;m.push(d);d=pa(d)}for(d=[];k&&k!==l;){g=k.alternate;if(null!==g&&g===l)break;d.push(k);k=pa(k)}for(k=0;k<m.length;k++)be(m[k],"bubbled",n);for(k=d.length;0<k--;)be(d[k],"captured",c);return 0===(e&64)?[n]:[n,c]}},Qa="function"===typeof Object.is?Object.is:Zi,$i=Object.prototype.hasOwnProperty,Zj=wa&&"documentMode"in document&&11>=document.documentMode,Eg={select:{phasedRegistrationNames:{bubbled:"onSelect",captured:"onSelectCapture"},
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|
dependencies:"blur contextmenu dragend focus keydown keyup mousedown mouseup selectionchange".split(" ")}},nb=null,he=null,Pb=null,ge=!1,ak={eventTypes:Eg,extractEvents:function(a,b,c,d,e,f){e=f||(d.window===d?d.document:9===d.nodeType?d:d.ownerDocument);if(!(f=!e)){a:{e=Jd(e);f=rd.onSelect;for(var g=0;g<f.length;g++)if(!e.has(f[g])){e=!1;break a}e=!0}f=!e}if(f)return null;e=b?Pa(b):window;switch(a){case "focus":if(yg(e)||"true"===e.contentEditable)nb=e,he=b,Pb=null;break;case "blur":Pb=he=nb=null;
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|
break;case "mousedown":ge=!0;break;case "contextmenu":case "mouseup":case "dragend":return ge=!1,Dg(c,d);case "selectionchange":if(Zj)break;case "keydown":case "keyup":return Dg(c,d)}return null}},bk=R.extend({animationName:null,elapsedTime:null,pseudoElement:null}),ck=R.extend({clipboardData:function(a){return"clipboardData"in a?a.clipboardData:window.clipboardData}}),dk=dc.extend({relatedTarget:null}),ek={Esc:"Escape",Spacebar:" ",Left:"ArrowLeft",Up:"ArrowUp",Right:"ArrowRight",Down:"ArrowDown",
|
|
Del:"Delete",Win:"OS",Menu:"ContextMenu",Apps:"ContextMenu",Scroll:"ScrollLock",MozPrintableKey:"Unidentified"},fk={8:"Backspace",9:"Tab",12:"Clear",13:"Enter",16:"Shift",17:"Control",18:"Alt",19:"Pause",20:"CapsLock",27:"Escape",32:" ",33:"PageUp",34:"PageDown",35:"End",36:"Home",37:"ArrowLeft",38:"ArrowUp",39:"ArrowRight",40:"ArrowDown",45:"Insert",46:"Delete",112:"F1",113:"F2",114:"F3",115:"F4",116:"F5",117:"F6",118:"F7",119:"F8",120:"F9",121:"F10",122:"F11",123:"F12",144:"NumLock",145:"ScrollLock",
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|
224:"Meta"},gk=dc.extend({key:function(a){if(a.key){var b=ek[a.key]||a.key;if("Unidentified"!==b)return b}return"keypress"===a.type?(a=Ac(a),13===a?"Enter":String.fromCharCode(a)):"keydown"===a.type||"keyup"===a.type?fk[a.keyCode]||"Unidentified":""},location:null,ctrlKey:null,shiftKey:null,altKey:null,metaKey:null,repeat:null,locale:null,getModifierState:fe,charCode:function(a){return"keypress"===a.type?Ac(a):0},keyCode:function(a){return"keydown"===a.type||"keyup"===a.type?a.keyCode:0},which:function(a){return"keypress"===
|
|
a.type?Ac(a):"keydown"===a.type||"keyup"===a.type?a.keyCode:0}}),hk=ec.extend({dataTransfer:null}),ik=dc.extend({touches:null,targetTouches:null,changedTouches:null,altKey:null,metaKey:null,ctrlKey:null,shiftKey:null,getModifierState:fe}),jk=R.extend({propertyName:null,elapsedTime:null,pseudoElement:null}),kk=ec.extend({deltaX:function(a){return"deltaX"in a?a.deltaX:"wheelDeltaX"in a?-a.wheelDeltaX:0},deltaY:function(a){return"deltaY"in a?a.deltaY:"wheelDeltaY"in a?-a.wheelDeltaY:"wheelDelta"in a?
|
|
-a.wheelDelta:0},deltaZ:null,deltaMode:null}),lk={eventTypes:dg,extractEvents:function(a,b,c,d,e){e=cg.get(a);if(!e)return null;switch(a){case "keypress":if(0===Ac(c))return null;case "keydown":case "keyup":a=gk;break;case "blur":case "focus":a=dk;break;case "click":if(2===c.button)return null;case "auxclick":case "dblclick":case "mousedown":case "mousemove":case "mouseup":case "mouseout":case "mouseover":case "contextmenu":a=ec;break;case "drag":case "dragend":case "dragenter":case "dragexit":case "dragleave":case "dragover":case "dragstart":case "drop":a=
|
|
hk;break;case "touchcancel":case "touchend":case "touchmove":case "touchstart":a=ik;break;case $h:case ai:case bi:a=bk;break;case ci:a=jk;break;case "scroll":a=dc;break;case "wheel":a=kk;break;case "copy":case "cut":case "paste":a=ck;break;case "gotpointercapture":case "lostpointercapture":case "pointercancel":case "pointerdown":case "pointermove":case "pointerout":case "pointerover":case "pointerup":a=hi;break;default:a=R}b=a.getPooled(e,b,c,d);lb(b);return b}};(function(a){if(ic)throw Error(k(101));
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ic=Array.prototype.slice.call(a);nf()})("ResponderEventPlugin SimpleEventPlugin EnterLeaveEventPlugin ChangeEventPlugin SelectEventPlugin BeforeInputEventPlugin".split(" "));(function(a,b,c){td=a;rf=b;mf=c})(ae,Hb,Pa);pf({SimpleEventPlugin:lk,EnterLeaveEventPlugin:Yj,ChangeEventPlugin:Xj,SelectEventPlugin:ak,BeforeInputEventPlugin:Wj});var ie=[],ob=-1,Ca={},B={current:Ca},G={current:!1},Ra=Ca,bj=Pd,je=$f,Rg=Lj,aj=Nj,Dc=Oj,Ig=Zh,Jg=ag,Kg=Pj,Lg=Qj,Qg={},yj=Mj,Cj=void 0!==Yh?Yh:function(){},qa=null,
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Ec=null,ke=!1,ii=ff(),Y=1E4>ii?ff:function(){return ff()-ii},Ic={current:null},Hc=null,qb=null,Gc=null,Tg=0,Jc=2,Ga=!1,Vb=da.ReactCurrentBatchConfig,$g=(new ea.Component).refs,Mc={isMounted:function(a){return(a=a._reactInternalFiber)?Na(a)===a:!1},enqueueSetState:function(a,b,c){a=a._reactInternalFiber;var d=ka(),e=Vb.suspense;d=Va(d,a,e);e=Ea(d,e);e.payload=b;void 0!==c&&null!==c&&(e.callback=c);Fa(a,e);Ja(a,d)},enqueueReplaceState:function(a,b,c){a=a._reactInternalFiber;var d=ka(),e=Vb.suspense;
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d=Va(d,a,e);e=Ea(d,e);e.tag=1;e.payload=b;void 0!==c&&null!==c&&(e.callback=c);Fa(a,e);Ja(a,d)},enqueueForceUpdate:function(a,b){a=a._reactInternalFiber;var c=ka(),d=Vb.suspense;c=Va(c,a,d);d=Ea(c,d);d.tag=Jc;void 0!==b&&null!==b&&(d.callback=b);Fa(a,d);Ja(a,c)}},Qc=Array.isArray,wb=ah(!0),Fe=ah(!1),Sb={},ja={current:Sb},Ub={current:Sb},Tb={current:Sb},D={current:0},Sc=da.ReactCurrentDispatcher,X=da.ReactCurrentBatchConfig,Ia=0,z=null,K=null,J=null,Uc=!1,Tc={readContext:W,useCallback:S,useContext:S,
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useEffect:S,useImperativeHandle:S,useLayoutEffect:S,useMemo:S,useReducer:S,useRef:S,useState:S,useDebugValue:S,useResponder:S,useDeferredValue:S,useTransition:S},dj={readContext:W,useCallback:ih,useContext:W,useEffect:eh,useImperativeHandle:function(a,b,c){c=null!==c&&void 0!==c?c.concat([a]):null;return ze(4,2,gh.bind(null,b,a),c)},useLayoutEffect:function(a,b){return ze(4,2,a,b)},useMemo:function(a,b){var c=ub();b=void 0===b?null:b;a=a();c.memoizedState=[a,b];return a},useReducer:function(a,b,c){var d=
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ub();b=void 0!==c?c(b):b;d.memoizedState=d.baseState=b;a=d.queue={pending:null,dispatch:null,lastRenderedReducer:a,lastRenderedState:b};a=a.dispatch=ch.bind(null,z,a);return[d.memoizedState,a]},useRef:function(a){var b=ub();a={current:a};return b.memoizedState=a},useState:xe,useDebugValue:Be,useResponder:ue,useDeferredValue:function(a,b){var c=xe(a),d=c[0],e=c[1];eh(function(){var c=X.suspense;X.suspense=void 0===b?null:b;try{e(a)}finally{X.suspense=c}},[a,b]);return d},useTransition:function(a){var b=
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xe(!1),c=b[0];b=b[1];return[ih(Ce.bind(null,b,a),[b,a]),c]}},ej={readContext:W,useCallback:Yc,useContext:W,useEffect:Xc,useImperativeHandle:hh,useLayoutEffect:fh,useMemo:jh,useReducer:Vc,useRef:dh,useState:function(a){return Vc(Ua)},useDebugValue:Be,useResponder:ue,useDeferredValue:function(a,b){var c=Vc(Ua),d=c[0],e=c[1];Xc(function(){var c=X.suspense;X.suspense=void 0===b?null:b;try{e(a)}finally{X.suspense=c}},[a,b]);return d},useTransition:function(a){var b=Vc(Ua),c=b[0];b=b[1];return[Yc(Ce.bind(null,
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b,a),[b,a]),c]}},fj={readContext:W,useCallback:Yc,useContext:W,useEffect:Xc,useImperativeHandle:hh,useLayoutEffect:fh,useMemo:jh,useReducer:Wc,useRef:dh,useState:function(a){return Wc(Ua)},useDebugValue:Be,useResponder:ue,useDeferredValue:function(a,b){var c=Wc(Ua),d=c[0],e=c[1];Xc(function(){var c=X.suspense;X.suspense=void 0===b?null:b;try{e(a)}finally{X.suspense=c}},[a,b]);return d},useTransition:function(a){var b=Wc(Ua),c=b[0];b=b[1];return[Yc(Ce.bind(null,b,a),[b,a]),c]}},ra=null,Ka=null,Wa=
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!1,gj=da.ReactCurrentOwner,ia=!1,Je={dehydrated:null,retryTime:0};var jj=function(a,b,c,d){for(c=b.child;null!==c;){if(5===c.tag||6===c.tag)a.appendChild(c.stateNode);else if(4!==c.tag&&null!==c.child){c.child.return=c;c=c.child;continue}if(c===b)break;for(;null===c.sibling;){if(null===c.return||c.return===b)return;c=c.return}c.sibling.return=c.return;c=c.sibling}};var wh=function(a){};var ij=function(a,b,c,d,e){var f=a.memoizedProps;if(f!==d){var g=b.stateNode;Ta(ja.current);a=null;switch(c){case "input":f=
|
|
Cd(g,f);d=Cd(g,d);a=[];break;case "option":f=Fd(g,f);d=Fd(g,d);a=[];break;case "select":f=M({},f,{value:void 0});d=M({},d,{value:void 0});a=[];break;case "textarea":f=Gd(g,f);d=Gd(g,d);a=[];break;default:"function"!==typeof f.onClick&&"function"===typeof d.onClick&&(g.onclick=uc)}Ud(c,d);var h,m;c=null;for(h in f)if(!d.hasOwnProperty(h)&&f.hasOwnProperty(h)&&null!=f[h])if("style"===h)for(m in g=f[h],g)g.hasOwnProperty(m)&&(c||(c={}),c[m]="");else"dangerouslySetInnerHTML"!==h&&"children"!==h&&"suppressContentEditableWarning"!==
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h&&"suppressHydrationWarning"!==h&&"autoFocus"!==h&&(db.hasOwnProperty(h)?a||(a=[]):(a=a||[]).push(h,null));for(h in d){var k=d[h];g=null!=f?f[h]:void 0;if(d.hasOwnProperty(h)&&k!==g&&(null!=k||null!=g))if("style"===h)if(g){for(m in g)!g.hasOwnProperty(m)||k&&k.hasOwnProperty(m)||(c||(c={}),c[m]="");for(m in k)k.hasOwnProperty(m)&&g[m]!==k[m]&&(c||(c={}),c[m]=k[m])}else c||(a||(a=[]),a.push(h,c)),c=k;else"dangerouslySetInnerHTML"===h?(k=k?k.__html:void 0,g=g?g.__html:void 0,null!=k&&g!==k&&(a=a||
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[]).push(h,k)):"children"===h?g===k||"string"!==typeof k&&"number"!==typeof k||(a=a||[]).push(h,""+k):"suppressContentEditableWarning"!==h&&"suppressHydrationWarning"!==h&&(db.hasOwnProperty(h)?(null!=k&&oa(e,h),a||g===k||(a=[])):(a=a||[]).push(h,k))}c&&(a=a||[]).push("style",c);e=a;if(b.updateQueue=e)b.effectTag|=4}};var kj=function(a,b,c,d){c!==d&&(b.effectTag|=4)};var pj="function"===typeof WeakSet?WeakSet:Set,wj="function"===typeof WeakMap?WeakMap:Map,sj=Math.ceil,gd=da.ReactCurrentDispatcher,
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|
Uh=da.ReactCurrentOwner,H=0,Ye=8,ca=16,ma=32,Xa=0,hd=1,Oh=2,ad=3,bd=4,Xe=5,p=H,U=null,t=null,P=0,F=Xa,id=null,ta=1073741823,Yb=1073741823,kd=null,Xb=0,jd=!1,Re=0,Ph=500,l=null,cd=!1,Se=null,La=null,ld=!1,Zb=null,$b=90,bb=null,ac=0,af=null,dd=0,Ja=function(a,b){if(50<ac)throw ac=0,af=null,Error(k(185));a=ed(a,b);if(null!==a){var c=Cc();1073741823===b?(p&Ye)!==H&&(p&(ca|ma))===H?Te(a):(V(a),p===H&&ha()):V(a);(p&4)===H||98!==c&&99!==c||(null===bb?bb=new Map([[a,b]]):(c=bb.get(a),(void 0===c||c>b)&&bb.set(a,
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|
b)))}};var zj=function(a,b,c){var d=b.expirationTime;if(null!==a){var e=b.pendingProps;if(a.memoizedProps!==e||G.current)ia=!0;else{if(d<c){ia=!1;switch(b.tag){case 3:sh(b);Ee();break;case 5:bh(b);if(b.mode&4&&1!==c&&e.hidden)return b.expirationTime=b.childExpirationTime=1,null;break;case 1:N(b.type)&&Bc(b);break;case 4:se(b,b.stateNode.containerInfo);break;case 10:d=b.memoizedProps.value;e=b.type._context;y(Ic,e._currentValue);e._currentValue=d;break;case 13:if(null!==b.memoizedState){d=b.child.childExpirationTime;
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if(0!==d&&d>=c)return th(a,b,c);y(D,D.current&1);b=sa(a,b,c);return null!==b?b.sibling:null}y(D,D.current&1);break;case 19:d=b.childExpirationTime>=c;if(0!==(a.effectTag&64)){if(d)return vh(a,b,c);b.effectTag|=64}e=b.memoizedState;null!==e&&(e.rendering=null,e.tail=null);y(D,D.current);if(!d)return null}return sa(a,b,c)}ia=!1}}else ia=!1;b.expirationTime=0;switch(b.tag){case 2:d=b.type;null!==a&&(a.alternate=null,b.alternate=null,b.effectTag|=2);a=b.pendingProps;e=pb(b,B.current);rb(b,c);e=we(null,
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b,d,a,e,c);b.effectTag|=1;if("object"===typeof e&&null!==e&&"function"===typeof e.render&&void 0===e.$$typeof){b.tag=1;b.memoizedState=null;b.updateQueue=null;if(N(d)){var f=!0;Bc(b)}else f=!1;b.memoizedState=null!==e.state&&void 0!==e.state?e.state:null;ne(b);var g=d.getDerivedStateFromProps;"function"===typeof g&&Lc(b,d,g,a);e.updater=Mc;b.stateNode=e;e._reactInternalFiber=b;pe(b,d,a,c);b=Ie(null,b,d,!0,f,c)}else b.tag=0,T(null,b,e,c),b=b.child;return b;case 16:a:{e=b.elementType;null!==a&&(a.alternate=
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null,b.alternate=null,b.effectTag|=2);a=b.pendingProps;ri(e);if(1!==e._status)throw e._result;e=e._result;b.type=e;f=b.tag=Gj(e);a=aa(e,a);switch(f){case 0:b=He(null,b,e,a,c);break a;case 1:b=rh(null,b,e,a,c);break a;case 11:b=nh(null,b,e,a,c);break a;case 14:b=oh(null,b,e,aa(e.type,a),d,c);break a}throw Error(k(306,e,""));}return b;case 0:return d=b.type,e=b.pendingProps,e=b.elementType===d?e:aa(d,e),He(a,b,d,e,c);case 1:return d=b.type,e=b.pendingProps,e=b.elementType===d?e:aa(d,e),rh(a,b,d,e,c);
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|
case 3:sh(b);d=b.updateQueue;if(null===a||null===d)throw Error(k(282));d=b.pendingProps;e=b.memoizedState;e=null!==e?e.element:null;oe(a,b);Qb(b,d,null,c);d=b.memoizedState.element;if(d===e)Ee(),b=sa(a,b,c);else{if(e=b.stateNode.hydrate)Ka=kb(b.stateNode.containerInfo.firstChild),ra=b,e=Wa=!0;if(e)for(c=Fe(b,null,d,c),b.child=c;c;)c.effectTag=c.effectTag&-3|1024,c=c.sibling;else T(a,b,d,c),Ee();b=b.child}return b;case 5:return bh(b),null===a&&De(b),d=b.type,e=b.pendingProps,f=null!==a?a.memoizedProps:
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|
null,g=e.children,Yd(d,e)?g=null:null!==f&&Yd(d,f)&&(b.effectTag|=16),qh(a,b),b.mode&4&&1!==c&&e.hidden?(b.expirationTime=b.childExpirationTime=1,b=null):(T(a,b,g,c),b=b.child),b;case 6:return null===a&&De(b),null;case 13:return th(a,b,c);case 4:return se(b,b.stateNode.containerInfo),d=b.pendingProps,null===a?b.child=wb(b,null,d,c):T(a,b,d,c),b.child;case 11:return d=b.type,e=b.pendingProps,e=b.elementType===d?e:aa(d,e),nh(a,b,d,e,c);case 7:return T(a,b,b.pendingProps,c),b.child;case 8:return T(a,
|
|
b,b.pendingProps.children,c),b.child;case 12:return T(a,b,b.pendingProps.children,c),b.child;case 10:a:{d=b.type._context;e=b.pendingProps;g=b.memoizedProps;f=e.value;var h=b.type._context;y(Ic,h._currentValue);h._currentValue=f;if(null!==g)if(h=g.value,f=Qa(h,f)?0:("function"===typeof d._calculateChangedBits?d._calculateChangedBits(h,f):1073741823)|0,0===f){if(g.children===e.children&&!G.current){b=sa(a,b,c);break a}}else for(h=b.child,null!==h&&(h.return=b);null!==h;){var m=h.dependencies;if(null!==
|
|
m){g=h.child;for(var l=m.firstContext;null!==l;){if(l.context===d&&0!==(l.observedBits&f)){1===h.tag&&(l=Ea(c,null),l.tag=Jc,Fa(h,l));h.expirationTime<c&&(h.expirationTime=c);l=h.alternate;null!==l&&l.expirationTime<c&&(l.expirationTime=c);Sg(h.return,c);m.expirationTime<c&&(m.expirationTime=c);break}l=l.next}}else g=10===h.tag?h.type===b.type?null:h.child:h.child;if(null!==g)g.return=h;else for(g=h;null!==g;){if(g===b){g=null;break}h=g.sibling;if(null!==h){h.return=g.return;g=h;break}g=g.return}h=
|
|
g}T(a,b,e.children,c);b=b.child}return b;case 9:return e=b.type,f=b.pendingProps,d=f.children,rb(b,c),e=W(e,f.unstable_observedBits),d=d(e),b.effectTag|=1,T(a,b,d,c),b.child;case 14:return e=b.type,f=aa(e,b.pendingProps),f=aa(e.type,f),oh(a,b,e,f,d,c);case 15:return ph(a,b,b.type,b.pendingProps,d,c);case 17:return d=b.type,e=b.pendingProps,e=b.elementType===d?e:aa(d,e),null!==a&&(a.alternate=null,b.alternate=null,b.effectTag|=2),b.tag=1,N(d)?(a=!0,Bc(b)):a=!1,rb(b,c),Yg(b,d,e),pe(b,d,e,c),Ie(null,
|
|
b,d,!0,a,c);case 19:return vh(a,b,c)}throw Error(k(156,b.tag));};var bf=null,Ne=null,la=function(a,b,c,d){return new Fj(a,b,c,d)};ef.prototype.render=function(a){md(a,this._internalRoot,null,null)};ef.prototype.unmount=function(){var a=this._internalRoot,b=a.containerInfo;md(null,a,null,function(){b[Lb]=null})};var Di=function(a){if(13===a.tag){var b=Fc(ka(),150,100);Ja(a,b);df(a,b)}};var Yf=function(a){13===a.tag&&(Ja(a,3),df(a,3))};var Bi=function(a){if(13===a.tag){var b=ka();b=Va(b,a,null);Ja(a,
|
|
b);df(a,b)}};sd=function(a,b,c){switch(b){case "input":Dd(a,c);b=c.name;if("radio"===c.type&&null!=b){for(c=a;c.parentNode;)c=c.parentNode;c=c.querySelectorAll("input[name="+JSON.stringify(""+b)+'][type="radio"]');for(b=0;b<c.length;b++){var d=c[b];if(d!==a&&d.form===a.form){var e=ae(d);if(!e)throw Error(k(90));Gf(d);Dd(d,e)}}}break;case "textarea":Lf(a,c);break;case "select":b=c.value,null!=b&&hb(a,!!c.multiple,b,!1)}};(function(a,b,c,d){ee=a;eg=b;vd=c;vf=d})(Qh,function(a,b,c,d,e){var f=p;p|=4;
|
|
try{return Da(98,a.bind(null,b,c,d,e))}finally{p=f,p===H&&ha()}},function(){(p&(1|ca|ma))===H&&(uj(),xb())},function(a,b){var c=p;p|=2;try{return a(b)}finally{p=c,p===H&&ha()}});var mk={Events:[Hb,Pa,ae,pf,qd,lb,function(a){Kd(a,Ki)},sf,tf,sc,pc,xb,{current:!1}]};(function(a){var b=a.findFiberByHostInstance;return Ej(M({},a,{overrideHookState:null,overrideProps:null,setSuspenseHandler:null,scheduleUpdate:null,currentDispatcherRef:da.ReactCurrentDispatcher,findHostInstanceByFiber:function(a){a=Sf(a);
|
|
return null===a?null:a.stateNode},findFiberByHostInstance:function(a){return b?b(a):null},findHostInstancesForRefresh:null,scheduleRefresh:null,scheduleRoot:null,setRefreshHandler:null,getCurrentFiber:null}))})({findFiberByHostInstance:Bb,bundleType:0,version:"16.13.1",rendererPackageName:"react-dom"});I.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED=mk;I.createPortal=Xh;I.findDOMNode=function(a){if(null==a)return null;if(1===a.nodeType)return a;var b=a._reactInternalFiber;if(void 0===
|
|
b){if("function"===typeof a.render)throw Error(k(188));throw Error(k(268,Object.keys(a)));}a=Sf(b);a=null===a?null:a.stateNode;return a};I.flushSync=function(a,b){if((p&(ca|ma))!==H)throw Error(k(187));var c=p;p|=1;try{return Da(99,a.bind(null,b))}finally{p=c,ha()}};I.hydrate=function(a,b,c){if(!bc(b))throw Error(k(200));return nd(null,a,b,!0,c)};I.render=function(a,b,c){if(!bc(b))throw Error(k(200));return nd(null,a,b,!1,c)};I.unmountComponentAtNode=function(a){if(!bc(a))throw Error(k(40));return a._reactRootContainer?
|
|
(Rh(function(){nd(null,null,a,!1,function(){a._reactRootContainer=null;a[Lb]=null})}),!0):!1};I.unstable_batchedUpdates=Qh;I.unstable_createPortal=function(a,b){return Xh(a,b,2<arguments.length&&void 0!==arguments[2]?arguments[2]:null)};I.unstable_renderSubtreeIntoContainer=function(a,b,c,d){if(!bc(c))throw Error(k(200));if(null==a||void 0===a._reactInternalFiber)throw Error(k(38));return nd(a,b,c,!1,d)};I.version="16.13.1"});
|
|
</script>
|
|
<script>const e = React.createElement;
|
|
|
|
function pathToString(path) {
|
|
if (path[0] === '/') {
|
|
return '/' + path.slice(1).join('/');
|
|
} else {
|
|
return path.join('/');
|
|
}
|
|
}
|
|
|
|
function findCommonPath(files) {
|
|
if (!files || !files.length) {
|
|
return [];
|
|
}
|
|
|
|
function isPrefix(arr, prefix) {
|
|
if (arr.length < prefix.length) {
|
|
return false;
|
|
}
|
|
for (let i = prefix.length - 1; i >= 0; --i) {
|
|
if (arr[i] !== prefix[i]) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
let commonPath = files[0].path.slice(0, -1);
|
|
while (commonPath.length) {
|
|
if (files.every(file => isPrefix(file.path, commonPath))) {
|
|
break;
|
|
}
|
|
commonPath.pop();
|
|
}
|
|
return commonPath;
|
|
}
|
|
|
|
function findFolders(files) {
|
|
if (!files || !files.length) {
|
|
return [];
|
|
}
|
|
|
|
let folders = files.filter(file => file.path.length > 1).map(file => file.path[0]);
|
|
folders = [...new Set(folders)]; // unique
|
|
folders.sort();
|
|
|
|
folders = folders.map(folder => {
|
|
let filesInFolder = files
|
|
.filter(file => file.path[0] === folder)
|
|
.map(file => ({
|
|
...file,
|
|
path: file.path.slice(1),
|
|
parent: [...file.parent, file.path[0]],
|
|
}));
|
|
|
|
const children = findFolders(filesInFolder); // recursion
|
|
|
|
return {
|
|
is_folder: true,
|
|
path: [folder],
|
|
parent: files[0].parent,
|
|
children,
|
|
covered: children.reduce((sum, file) => sum + file.covered, 0),
|
|
coverable: children.reduce((sum, file) => sum + file.coverable, 0),
|
|
prevRun: {
|
|
covered: children.reduce((sum, file) => sum + file.prevRun.covered, 0),
|
|
coverable: children.reduce((sum, file) => sum + file.prevRun.coverable, 0),
|
|
},
|
|
};
|
|
});
|
|
|
|
return [...folders, ...files.filter(file => file.path.length === 1)];
|
|
}
|
|
|
|
class App extends React.Component {
|
|
constructor(...args) {
|
|
super(...args);
|
|
|
|
this.state = {
|
|
current: [],
|
|
};
|
|
}
|
|
|
|
componentDidMount() {
|
|
this.updateStateFromLocation();
|
|
window.addEventListener('hashchange', () => this.updateStateFromLocation(), false);
|
|
}
|
|
|
|
updateStateFromLocation() {
|
|
if (window.location.hash.length > 1) {
|
|
const current = window.location.hash.slice(1).split('/').map(decodeURIComponent);
|
|
this.setState({current});
|
|
} else {
|
|
this.setState({current: []});
|
|
}
|
|
}
|
|
|
|
getCurrentPath() {
|
|
let file = this.props.root;
|
|
let path = [file];
|
|
for (let p of this.state.current) {
|
|
file = file.children.find(file => file.path[0] === p);
|
|
if (!file) {
|
|
return path;
|
|
}
|
|
path.push(file);
|
|
}
|
|
return path;
|
|
}
|
|
|
|
render() {
|
|
const path = this.getCurrentPath();
|
|
const file = path[path.length - 1];
|
|
|
|
let w = null;
|
|
if (file.is_folder) {
|
|
w = e(FilesList, {
|
|
folder: file,
|
|
onSelectFile: this.selectFile.bind(this),
|
|
onBack: path.length > 1 ? this.back.bind(this) : null,
|
|
});
|
|
} else {
|
|
w = e(DisplayFile, {
|
|
file,
|
|
onBack: this.back.bind(this),
|
|
});
|
|
}
|
|
|
|
return e('div', {className: 'app'}, w);
|
|
}
|
|
|
|
selectFile(file) {
|
|
this.setState(
|
|
({current}) => {
|
|
return {current: [...current, file.path[0]]};
|
|
},
|
|
() => this.updateHash(),
|
|
);
|
|
}
|
|
|
|
back(file) {
|
|
this.setState(
|
|
({current}) => {
|
|
return {current: current.slice(0, current.length - 1)};
|
|
},
|
|
() => this.updateHash(),
|
|
);
|
|
}
|
|
|
|
updateHash() {
|
|
if (!this.state.current || !this.state.current.length) {
|
|
window.location = '#';
|
|
} else {
|
|
window.location = '#' + this.state.current.join('/');
|
|
}
|
|
}
|
|
}
|
|
|
|
function FilesList({folder, onSelectFile, onBack}) {
|
|
let files = folder.children;
|
|
return e(
|
|
'div',
|
|
{className: 'display-folder'},
|
|
e(FileHeader, {file: folder, onBack}),
|
|
e(
|
|
'table',
|
|
{className: 'files-list'},
|
|
e('thead', {className: 'files-list__head'}, e('tr', null, e('th', null, 'Path'), e('th', null, 'Coverage'))),
|
|
e(
|
|
'tbody',
|
|
{className: 'files-list__body'},
|
|
files.map(file => e(File, {file, onClick: onSelectFile})),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
function File({file, onClick}) {
|
|
const coverage = file.coverable ? (file.covered / file.coverable) * 100 : -1;
|
|
const coverageDelta =
|
|
file.prevRun && (file.covered / file.coverable) * 100 - (file.prevRun.covered / file.prevRun.coverable) * 100;
|
|
|
|
return e(
|
|
'tr',
|
|
{
|
|
className:
|
|
'files-list__file' +
|
|
(coverage >= 0 && coverage < 50 ? ' files-list__file_low' : '') +
|
|
(coverage >= 50 && coverage < 80 ? ' files-list__file_medium' : '') +
|
|
(coverage >= 80 ? ' files-list__file_high' : '') +
|
|
(file.is_folder ? ' files-list__file_folder' : ''),
|
|
onClick: () => onClick(file),
|
|
},
|
|
e('td', null, e('a', null, pathToString(file.path))),
|
|
e(
|
|
'td',
|
|
null,
|
|
file.covered + ' / ' + file.coverable + (coverage >= 0 ? ' (' + coverage.toFixed(2) + '%)' : ''),
|
|
e(
|
|
'span',
|
|
{title: 'Change from the previous run'},
|
|
coverageDelta ? ` (${coverageDelta > 0 ? '+' : ''}${coverageDelta.toFixed(2)}%)` : '',
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
function DisplayFile({file, onBack}) {
|
|
return e('div', {className: 'display-file'}, e(FileHeader, {file, onBack}), e(FileContent, {file}));
|
|
}
|
|
|
|
function FileHeader({file, onBack}) {
|
|
const coverage = (file.covered / file.coverable) * 100;
|
|
const coverageDelta = file.prevRun && coverage - (file.prevRun.covered / file.prevRun.coverable) * 100;
|
|
|
|
return e(
|
|
'div',
|
|
{className: 'file-header'},
|
|
onBack ? e('a', {className: 'file-header__back', onClick: onBack}, 'Back') : null,
|
|
e('div', {className: 'file-header__name'}, pathToString([...file.parent, ...file.path])),
|
|
e(
|
|
'div',
|
|
{className: 'file-header__stat'},
|
|
'Covered: ' + file.covered + ' of ' + file.coverable + (file.coverable ? ' (' + coverage.toFixed(2) + '%)' : ''),
|
|
e(
|
|
'span',
|
|
{title: 'Change from the previous run'},
|
|
coverageDelta ? ` (${coverageDelta > 0 ? '+' : ''}${coverageDelta.toFixed(2)}%)` : '',
|
|
),
|
|
e('input', {id: 'theme-toggle', type: 'checkbox', hidden: true}),
|
|
e('label', {for: 'theme-toggle', id: 'theme-toggle-label'}, '🌙'),
|
|
),
|
|
);
|
|
}
|
|
|
|
function FileContent({file}) {
|
|
return e(
|
|
'pre',
|
|
{className: 'file-content'},
|
|
file.content.split(/\r?\n/).map((line, index) => {
|
|
const trace = file.traces.find(trace => trace.line === index + 1);
|
|
const covered = trace && trace.stats.Line;
|
|
const uncovered = trace && !trace.stats.Line;
|
|
const nbHit = covered? trace.stats.Line: 0;
|
|
return e(
|
|
'div',
|
|
{ className: 'code-text-container' },
|
|
e(
|
|
'code',
|
|
{
|
|
className: 'code-line' + (covered ? ' code-line_covered' : '') + (uncovered ? ' code-line_uncovered' : ''),
|
|
},
|
|
line
|
|
),
|
|
e(
|
|
'div',
|
|
{ className: 'cover-indicator' + (covered? ' check-cover': '') + (uncovered? ' no-cover': '')},
|
|
e(
|
|
'div',
|
|
{ className: (covered? 'stat-line-hit': '')},
|
|
covered? nbHit: ""
|
|
)
|
|
)
|
|
);
|
|
}),
|
|
);
|
|
}
|
|
|
|
(function () {
|
|
const commonPath = findCommonPath(data.files);
|
|
const prevFilesMap = new Map();
|
|
|
|
previousData &&
|
|
previousData.files.forEach(file => {
|
|
const path = file.path.slice(commonPath.length).join('/');
|
|
prevFilesMap.set(path, file);
|
|
});
|
|
|
|
const files = data.files.map(file => {
|
|
const path = file.path.slice(commonPath.length);
|
|
const {covered = 0, coverable = 0} = prevFilesMap.get(path.join('/')) || {};
|
|
return {
|
|
...file,
|
|
path,
|
|
parent: commonPath,
|
|
prevRun: {covered, coverable},
|
|
};
|
|
});
|
|
|
|
const children = findFolders(files);
|
|
|
|
const root = {
|
|
is_folder: true,
|
|
children,
|
|
path: commonPath,
|
|
parent: [],
|
|
covered: children.reduce((sum, file) => sum + file.covered, 0),
|
|
coverable: children.reduce((sum, file) => sum + file.coverable, 0),
|
|
prevRun: {
|
|
covered: children.reduce((sum, file) => sum + file.prevRun.covered, 0),
|
|
coverable: children.reduce((sum, file) => sum + file.prevRun.coverable, 0),
|
|
},
|
|
};
|
|
|
|
ReactDOM.render(e(App, {root, prevFilesMap}), document.getElementById('root'));
|
|
|
|
const toggle = document.getElementById('theme-toggle');
|
|
const label = document.getElementById('theme-toggle-label');
|
|
label.textContent = '🌙';
|
|
|
|
toggle.addEventListener('change', () => {
|
|
if (toggle.checked) {
|
|
document.documentElement.setAttribute('data-theme', 'dark');
|
|
label.textContent = '☀️';
|
|
} else {
|
|
document.documentElement.removeAttribute('data-theme');
|
|
label.textContent = '🌙';
|
|
}
|
|
});
|
|
})();
|
|
</script>
|
|
</body>
|
|
</html> |