test(starry): multimedia and streaming software stack carpets - #1712
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…tack) Umbrella carpet for the Chromium-class multimedia dependency stack on StarryOS, delivered as native-library API/CLI carpets validated on four architectures (x86_64/aarch64/riscv64/loongarch64) headless. The video-codec app carpets the video codecs: a deterministic synthetic YUV420 input is encoded with x264 and the H.264 bitstream is checked structurally (Annex-B start code, encoded frame count), and dav1d is verified present. Sibling apps (audio-codec, image-codec, font-text, shader-toolchain, stream-rtc, audio-io, container-parse) and the remaining codecs land in subsequent waves. This exercises each library through its own API/CLI, distinct from the ffmpeg-mediated coverage in the existing ffmpeg app, and documents the headless platform constraints (no audio device, software GPU only, no interactive display server on non-x86_64) that each wave is scoped against. Signed-off-by: 林晨 <chengkelfan@qq.com>
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Opened as a tracker for the browser multimedia dependency stack roadmap. Closing as work-in-progress until the first wave (x264/dav1d) is verified on-target across all four architectures, then reopening with the first deliverable. |
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Umbrella tracker for a multimedia and streaming software-stack test effort on
StarryOS, delivered as native-library API/CLI carpets validated on all four
architectures (x86_64/aarch64/riscv64/loongarch64) headless.
What this adds
apps/starry/video-codec/- the video-codec carpet. A deterministic syntheticYUV420 input is encoded with x264 and the H.264 bitstream is checked
structurally (Annex-B start code, encoded frame count); dav1d is verified
present. Both libraries are in Alpine main/community on all four arches.
Scope
Each library is exercised through its own API/CLI (own encoder/decoder
binaries, own bitstream tooling, deterministic round-trip / checksum / PSNR
proofs) - distinct from the ffmpeg-mediated coverage in the existing
ffmpegapp, which drives codecs through libav*.
Supplements, does not duplicate:
ffmpeg(#1086),ffplay(#1268),doom(#1415),
qt-calc(#1396), the Weston/waylandcompositor, and the GPUcompute carpets (#1574, #1575, #1576, #1578, #1609, #1610, #1648).
Wave plan
The existing
ffmpegapp is extended in place (not duplicated) to the threenon-x86_64 architectures and to currently-untested codecs/protocols/filters.
Platform constraints (scoped, not silently skipped)
/dev/snd): audio codecs transcode to files (fullytestable); audio-io libraries prove the software pipeline + graceful failure,
not physical playback.
containers, fonts and the offline shader toolchain; hardware decode / real 3D
accel are out of scope.
x86_64-only): windowing libraries used through headless paths
(EGL-surfaceless, null platform, offscreen draw-data).
Status
Work in progress - opened as a tracker. Each wave is gated on real on-target
4-arch green with real assertions (no silent skips).