Mike-Solar
adf2cef32c
- Audio tickets join the process backend: render_audio_batch wire message, workers mix straight into shm slots (SLOT_FORMAT_AUDIO_F32), ShmAudio payload with release semantics, crash isolation covers audio renders; playback audio uses an async 4-chunk prefetch drained on the UI tick (also fixes the sub-60fps chunk truncation bug); oversized ranges and dispatcher outages fall back to in-process inline. - Per-ticket slot formats: force_format is honored (exports request F32 slots, dropping the BGRA8 round-trip and its 8-bit quantization); segments grow on demand via worker-idle rebuild with generation handoff; the scheduler filters over-capacity tickets. - Adaptive defaults: 128-256MB/worker segment budgets drive slots per worker, batch size follows workers/slots; bench_process example measures throughput and adjacent-frame completion deltas (e.g. 4 workers: 841 fps, 4.6ms mean delta).
oak-cli (Rust)
Headless command-line consumer of the oak editor module crates — the Rust
rewrite of cli/main.cpp (which stays in the tree until cutover). Same
subcommands, same output format, same exit codes:
| exit | meaning |
|---|---|
| 0 | success |
| 1 | general error (bad project/media file, no sequence, I/O failure) |
| 2 | rendering unavailable or failed (e.g. no render backend) |
| 64 | usage error |
Build and test
cargo build --release # binary: target/release/oak-cli
cargo test # unit + integration tests
The crate is self-contained (M14 R2): it links the oak* module rlibs
directly (oaknode, oaktimeline, oakcodec, oakrender, oaktask,
oakcommon) — no liboakengine dylib, no C ABI, no build.rs link step.
cargo test -p oak-cli stands alone.
Subcommands
Every subcommand of the C++ original is implemented:
oak-cli info <project.ove> <start> <end> <out_dir> project name/sequences/footage
oak-cli render <project.ove> <start_seconds> <end_seconds> <out_dir>
oak-cli probe <mediafile>
oak-cli transcode <input_media> <out> [width] [--format ppm|mp4]
Argument validation is faithful to the C++ (invalid start seconds,
invalid width, unknown --format … all exit 64). The output formatters
(src/fmt.rs) reproduce the C++ printf output byte for byte and are
golden-tested against the output captured from the C++ binary on the test
fixtures (tests/project_with_footage.ove, tests/demo.mp4); the PPM and
WAV writers (src/ppm.rs, src/wav.rs) are the exact ports of the C++
write_ppm/write_wav and are unit-tested.
Layout
src/
main.rs clap surface, --help/-h + unknown-command handling, dispatch
engine.rs module-native assembly layer (M14 R2): project load/create,
footage probe, sequence + clip assembly, montage resolution,
ticket rendering, synchronous export
fmt.rs golden output formatters (info/probe)
ppm.rs P6 PPM writer (f32/u8 frames)
wav.rs PCM s16 WAV writer (interleaved float samples)
cmd/ per-subcommand validation + module-crate calls
tests/cli.rs binary-level tests (exit codes, messages, usage errors)