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fix(engine): tune VP9 cpu-used across render paths (#1614)

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* fix(engine): tune VP9 cpu-used across render paths

* fix: address VP9 review feedback
This commit is contained in:
Miguel Ángel
2026-06-20 16:36:59 -04:00
committed by GitHub
parent d6135ca155
commit 8408a44745
30 changed files with 273 additions and 26 deletions
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packages/producer/tests/distributed/webm-vp9/meta.json
+1 -1
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@@ -1,6 +1,6 @@
{
"name": "Distributed: webm VP9",
"description": "60-frame composition (2s @ 30fps) with text and a small rotating SVG icon, rendered to webm (VP9 + yuva420p). renderConfig.format=webm routes the distributed pipeline through libvpx-vp9 with closed-GOP keyint params (-g N -keyint_min N -auto-alt-ref 0 -cpu-used 2) so per-chunk VP9 output can be losslessly stitched with `ffmpeg -f concat -c copy`. The in-process baseline renders to webm too (codec=vp9, pixelFormat=yuva420p), so the harness's PSNR comparison measures 'libvpx-vp9 chunked + concat' against 'libvpx-vp9 single-pass'. Closed-GOP forces more keyframes than open-GOP, which inflates per-chunk bitrate at constant CRF; PSNR threshold is set at 30 dB to absorb the resulting cross-mode drift without masking gross regressions.",
"description": "60-frame composition (2s @ 30fps) with text and a small rotating SVG icon, rendered to webm (VP9 + yuva420p). renderConfig.format=webm routes the distributed pipeline through libvpx-vp9 with closed-GOP keyint params (-g N -keyint_min N -auto-alt-ref 0 -cpu-used 4 by default) so per-chunk VP9 output can be losslessly stitched with `ffmpeg -f concat -c copy`. The in-process baseline renders to webm too (codec=vp9, pixelFormat=yuva420p), so the harness's PSNR comparison measures 'libvpx-vp9 chunked + concat' against 'libvpx-vp9 single-pass'. Closed-GOP forces more keyframes than open-GOP, which inflates per-chunk bitrate at constant CRF; PSNR threshold is set at 30 dB to absorb the resulting cross-mode drift without masking gross regressions.",
"tags": ["distributed", "webm", "vp9", "sdr"],
"minPsnr": 30,