Mike-Solar
3d004c081b
- oakcodec: de-Qt all 20 sources (QThread decode loop -> std::thread,
QObject/signals -> callbacks), pure C ABI in include/codec with
refcounted neutral handles (OakFrame/OakDecoder/OakEncoder),
framemanager moved in from render, frame_to_buffer/buffer_to_frame
moved in from oakcommon oiioutils, codec->task via submit callback
(M8 will register), all cross-module calls go through the other
side's C API, -fvisibility=hidden + OAKCODEC_API
- oakcommon: handles become refcounted value structs
{ctx, addref, release, abi_version} (FFmpeg-style), pass-by-value
signatures, free() as release wrapper; init_from_native/get_native
for copyable value objects; OakCommonXxx renamed to OakXxx
- oakcommon: add logging (log_debug/info/warning/critical with level
filtering and sink injection) + printf-style oakcommon_log C wrapper
- oakrender: add CancelAtom C API family; complete
oakrender_color_processor_convert_frame; fix get_processor() missing
definition and OCIO env var lookup
- tests: oakcommon 174, oaknode 96, oakrender 42, oakcodec 18, all
green in their standalone builds
126 lines
4.5 KiB
C
126 lines
4.5 KiB
C
/***
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Oak Video Editor - Non-Linear Video Editor
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Copyright (C) 2026 Oak Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef OAK_EDITOR_OIIOUTILS_H
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#define OAK_EDITOR_OIIOUTILS_H
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#include "common/error.h"
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/* Reuses the OakPixelFormat enum (mirroring
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* olive::core::PixelFormat) rather than redefining it here. */
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#include "common/ocioutils.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief OIIO base type codes, matching OIIO::TypeDesc::BASETYPE
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*
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* Passed through the C API as plain ints so callers never see OIIO
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* types. Values match the OIIO TypeDesc::BASETYPE enum: 0 = UNKNOWN,
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* 1 = NONE, 2 = UINT8, 3 = INT8, 4 = UINT16, 5 = INT16, 6 = UINT32,
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* 7 = INT32, 8 = UINT64, 9 = INT64, 10 = HALF, 11 = FLOAT, 12 = DOUBLE,
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* 13 = STRING, 14 = PTR. OIIO >= 2.5 adds 15 = USTRINGHASH and shifts
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* LASTBASE, so the exact LASTBASE value is version-dependent.
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*/
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/**
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* @brief Neutral by-value handle for the OIIO utils family
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*
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* The object is stateless; the handle exists only to satisfy the C API
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* lifetime contract. Ownership/count semantics follow common/handle.h:
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* init returns a handle whose (empty) object has reference count 1 and
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* release destroys it at zero. abi_version is always
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* OAKCOMMON_ABI_VERSION.
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*/
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typedef struct OakOIIOUtils {
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void *ctx; /**< Opaque pointer to the reference-counted object. */
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void (*addref)(void *ctx); /**< Atomically increments the count. */
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void (*release)(void *ctx); /**< Decrements the count, destroys at 0. */
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uint32_t abi_version; /**< OAKCOMMON_ABI_VERSION. */
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} OakOIIOUtils;
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/**
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* @brief Creates an OIIOUtils handle
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*
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* @return Handle with reference count 1; ctx is NULL on failure.
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*/
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OakOIIOUtils oakcommon_oiioutils_init(void);
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/**
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* @brief Releases one reference to an OIIOUtils handle
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*
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* Convenience wrapper around handle.release(handle.ctx); no-op when
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* self is NULL or self->ctx is NULL.
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*/
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void oakcommon_oiioutils_free(OakOIIOUtils *self);
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/**
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* @brief Maps a native pixel format to an OIIO base type
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*
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* @param self handle from oakcommon_oiioutils_init()
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* @param pixel_format one of the OakPixelFormat values
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* @param out_base_type receives the OIIO base type as an int (see the
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* OakOIIOUtils typedef documentation); set to 0
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* (TypeDesc::UNKNOWN) for invalid or unmappable formats
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* @return OAKCOMMON_OK, or OAKCOMMON_E_INVALID if self.ctx or
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* out_base_type is NULL or pixel_format is not a known code
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*/
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int oakcommon_oiioutils_get_oiio_base_type_from_format(
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OakOIIOUtils self, int pixel_format, int *out_base_type);
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/**
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* @brief Maps an OIIO base type to a native pixel format
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*
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* @param self handle from oakcommon_oiioutils_init()
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* @param base_type an OIIO TypeDesc::BASETYPE value as an int
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* @param out_pixel_format receives one of the OakPixelFormat
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* values; set to OAKCOMMON_PIXEL_FORMAT_INVALID for unknown or
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* unmappable base types
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* @return OAKCOMMON_OK, or OAKCOMMON_E_INVALID if self.ctx or
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* out_pixel_format is NULL or base_type is negative
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*/
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int oakcommon_oiioutils_get_format_from_oiio_basetype(
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OakOIIOUtils self, int base_type, int *out_pixel_format);
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/**
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* @brief Converts a PixelAspectRatio attribute value to a rational
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*
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* Flattened form of the former ImageSpec-based helper: the caller reads
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* the "PixelAspectRatio" float attribute from the OIIO::ImageSpec
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* (defaulting to 1.0 when absent) and passes it here.
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*
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* @param self handle from oakcommon_oiioutils_init()
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* @param pixel_aspect_ratio the PixelAspectRatio attribute value
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* @param out_numerator receives the rational numerator
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* @param out_denominator receives the rational denominator
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* @return OAKCOMMON_OK, or OAKCOMMON_E_INVALID if self.ctx,
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* out_numerator or out_denominator is NULL
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*/
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int oakcommon_oiioutils_get_pixel_aspect_ratio(
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OakOIIOUtils self, double pixel_aspect_ratio, int *out_numerator,
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int *out_denominator);
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#ifdef __cplusplus
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}
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#endif
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#endif // OAK_EDITOR_OIIOUTILS_H
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