Single-lib cleanup: the per-crate src/bridge/ and src/ffi.rs layers are
gone (oakundo/oakcommon/oaknode/oaktimeline/oakcodec/oakaudio/
oakrender/oaktask/oakplugin/oakstorage); cross-crate calls are plain
Rust, CHandle marshalling shrinks to the oakengine boundary, and tests
call the Rust APIs directly (pure C-ABI wrapper tests removed where
the domain layer already covers the behavior).
exporter.h family implemented: oakengine_export_render (CLI contract),
oakengine_export_render_with_params (was a stub), last_error and
progress callback; synchronous path reuses task_create_export +
start_sync. Fixes on the way: oaktask video ticket self-deadlock,
audio params dropped on the export path, codec encoder AAC slicing and
H.264 time base. Real-mp4 tests cover both entry points, progress and
the illegal-argument matrix.
Also: oakstorage session maps null project handles to None (version-
info path), configstore test double literal 3.14 -> 3.15 (clippy PI
lint), oakaudio output callback scratch buffer + env-aware P1 test,
cli media round-trip test uses a generated 16-frame clip (no more
minute-long debug runs).
- processor.rs: resample/channel-convert/time-stretch now runs an
in-process FFmpeg filter graph (abuffer -> atempo -> aformat ->
abuffersink) via ffmpeg-next
- waveform.rs: extraction decodes through oakcodec's FFmpegDecoder
(interleaved f32) instead of the fb_decoder/fb_audio_graph pair
- bridge/ffmpeg.rs and the null fb_* test stubs deleted;
oakcommon::ffmpegutils bridge constants become plain ints
- liboakengine.dylib no longer imports any fb_* symbol (nm -u clean);
the remaining runtime imports are the host-provided oakcore_* symbols
- real decode/resample tests added (generated PCM input, no network)
Mike-Solar