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Melchi Aaron Zedek bb57d422d0 craft-video: HEVC 4:2:2 8/10-bit decoding (Main 4:2:2 10) (#1087 )

Port of storytold/filmcraft#1952, reviewed and approved there before the
decoder moved to craft-libs. 4:2:2 streams that use no range-extension
coding tools (what cameras and libx265 write) now decode:

- chroma geometry from the SPS chroma format (ChromaFormat shifts) in the
  picture store, intra, inter, transform tree, deblocking and SAO;
- Table 8-3 IntraPredModeC mapping for ChromaArrayType 2;
- stacked chroma transform blocks with their second cbf flags;
- chroma QP = Min(qPi, 51) for non-4:2:0 (Table 8-10 applies to 4:2:0 only);
- chroma motion vectors scaled per axis;
- a PPS that scales SAO offsets (a RExt tool) is refused as unsupported.

Tests: 22 libx265 4:2:2 fixtures (8- and 10-bit) compared sample-exactly
with ffmpeg, the Table 8-3 derivation, and the SAO offset scale check.

2026-11-11 23:52:20 -05:00

common

craft-video: HEVC 4:2:2 8/10-bit decoding (Main 4:2:2 10) (#1087 )

2026-11-11 23:52:20 -05:00

conformance.rs

craft-video: HEVC 4:2:2 8/10-bit decoding (Main 4:2:2 10) (#1087 )

2026-11-11 23:52:20 -05:00

fuzz_hostile.rs

craft-video: HEVC decoder from FilmCraft, with DeckCraft's hardening (hevc-decode) (#828 )

2026-11-11 14:24:30 -05:00

main.rs

craft-video: HEVC decoder from FilmCraft, with DeckCraft's hardening (hevc-decode) (#828 )