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feat: opt-in 4:4:4 chroma for SDR MP4 masters - #5820

Merged

jrusso1020 merged 19 commits into

heygen-com:mainfrom

PaprikaChen:feat/chroma-subsampling-444

Nov 11, 2026

Merged

feat: opt-in 4:4:4 chroma for SDR MP4 masters#5820
jrusso1020 merged 19 commits into
heygen-com:mainfrom
PaprikaChen:feat/chroma-subsampling-444

Commits on Nov 10, 2026
- feat(engine): decouple transparent background from png capture format
  
  PaprikaChen
  and
  claude
  committed
  05da2e1
- feat(engine): add 4:4:4 chroma option to getEncoderPreset
  
  PaprikaChen
  and
  claude
  committed
  50bd511
- feat(producer): chromaSubsampling render option with lossless png capture
  
  PaprikaChen
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  claude
  committed
  3f967cb
- feat(producer,studio-server): accept chromaSubsampling on render routes
  
  PaprikaChen
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  claude
  committed
  51dc5fa
- feat(cli): add --chroma-subsampling flag
  
  PaprikaChen
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  claude
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  3a71f04
- docs: document 4:4:4 chroma subsampling
  
  PaprikaChen
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  claude
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  2c01257
- docs: add 4:4:4 player compatibility results
  
  PaprikaChen
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  claude
  committed
  85ff346
- docs: note the measured render cost of 4:4:4 output
  
  PaprikaChen
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  claude
  committed
  98cba95
- fix(producer): reject chromaSubsampling 444 in distributed render config
  
  PaprikaChen
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  claude
  committed
  1adbd71
- test(producer): check a 444 render reaches the encoder as yuv444p
  
  PaprikaChen
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  claude
  committed
  eaa8cf1
- refactor(producer): move the 444 drawElement gate into a helper
  
  PaprikaChen
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  claude
  committed
  4fc9c70
- chore: keep comment share at or below the merge-base
  
  PaprikaChen
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  claude
  committed
  6bcbd19
- test(producer): check a 444 render captures full-resolution chroma
  
  PaprikaChen
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  claude
  committed
  80f14d4
- chore(producer): trim the chromaSubsampling.ts header to the package comment share
  
  PaprikaChen
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  claude
  committed
  37217ae
- fix: finish switching to capturesAlpha from #6262
  
  PaprikaChen
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  claude
  committed
  1c49fd0
- refactor(engine): use transparent / capturesAlpha from #6262
  
  PaprikaChen
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  claude
  committed
  9174ce7
- chore(producer): cut the 4:4:4 comment blocks to one to three lines
  
  PaprikaChen
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  claude
  committed
  c5d797e
- refactor: reconcile 4:4:4 chroma with latest main
  
  PaprikaChen
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  claude
  committed
  1538c0d
- chore: keep main's compile-stage tests and regenerate the skills manifest
  
  PaprikaChen
  and
  claude
  committed
  bdd3399

Commits

Commits on Nov 10, 2026