The full pure-C facade used by the app: node/project/timeline/viewer/
undo/task/events/serializer/playback/preview/renderer/gizmo/color/
audio/footage/proxy/encoding/exporter/config/disk/ipc/plugin/worker
families, plus undo-group semantics, display renderer handles,
NodeFactory accessors, and per-family pure-C engine tests.
- oakengine_export_render_ex covers the dialog's entire option surface
(formats, codecs, pix fmts, audio params, ranges incl. still frame,
subtitles, scaling, threads, custom OCIO color transform names,
per-codec key/value options) - zero feature reduction
- the dialog's Start now creates a FacadeExportTask that drives
oakengine_export_render_ex instead of constructing ExportTask in the
UI; progress flows through the facade callback and cancel through
oakengine_export_cancel (OAKENGINE_E_CANCELLED preserves the
keep-dialog-open semantics)
- two real fixes: audio sample format 0 no longer means an
AAC-unsupported u8_p (default is f32_p), and image-sequence exports
use the engine's real [#####] placeholder instead of a made-up -%04d
Drives ConformManager for every audio-streaming footage with the same
AudioParams the export will use, before starting ExportTask - matching
the app's preview prewarm semantics. Root-cause analysis showed the
export's own wait-for-conform path already worked; this remains as a
first-export speedup and a belt-and-braces guarantee
- oakengine_export_render drives ExportTask synchronously (offline
render + encode) with a progress callback, codec probing, and a
thread-local error channel; exporter.h keeps clear of the visibility
macro header
- oak-cli transcode now defaults to mp4 (H.264/AAC) with --format ppm
keeping the raw output path
- two real concurrency bugs found by the facade's own test: ExportTask
deadlocks when start()ed synchronously (queued conform handshake
needs an event loop), and the progress callback must be captured by
value because it fires on the task thread
Mike-Solar