Brandon ThomasandClaude Opus 5.5 0f678aa105 h264: dequantisation wraps instead of overflowing on huge levels ...

Mutation fuzzing found a corrupt H.264 transport stream whose chroma DC levels overflowed
`chroma_dc_dequant_420` ("attempt to multiply with overflow" in debug builds, a decoder worker
panic). The 4x4 / 8x8 / DC dequantisers now use wrapping arithmetic, which is what release
builds always computed. Regression test `huge_levels_dequantise_without_overflow_panics`.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-04 11:56:22 -04:00

..

cabac_mb.rs

h264: never crash — no unwrap/expect in the decoder, deny them

2026-10-04 11:30:55 -04:00

cabac_tables.rs

M2.4: H.264 CABAC entropy decoding

2026-09-30 06:19:54 -04:00

cabac.rs

M4.9: H.264 draft mode (no deblocking of non-reference pictures, off by default)

2026-10-02 23:06:54 -04:00

cavlc_tables.rs

M2.2/M2.3: CAVLC macroblock decoding, intra and inter prediction, DPB

2026-09-30 06:14:18 -04:00

cavlc.rs

h264: never crash — no unwrap/expect in the decoder, deny them

2026-10-04 11:30:55 -04:00

deblock.rs

h264: never crash — no unwrap/expect in the decoder, deny them

2026-10-04 11:30:55 -04:00

decoder.rs

h264: never crash — no unwrap/expect in the decoder, deny them

2026-10-04 11:30:55 -04:00

dpb.rs

M4.9: H.264 draft mode (no deblocking of non-reference pictures, off by default)

2026-10-02 23:06:54 -04:00

error.rs

M2.1: H.264 NAL/SPS/PPS/slice header parsing

2026-09-30 06:12:38 -04:00

inter.rs

h264: never crash — no unwrap/expect in the decoder, deny them

2026-10-04 11:30:55 -04:00

intra.rs

M2.2/M2.3: CAVLC macroblock decoding, intra and inter prediction, DPB

2026-09-30 06:14:18 -04:00

lib.rs

h264: never crash — no unwrap/expect in the decoder, deny them

2026-10-04 11:30:55 -04:00

mbtypes.rs

M2.2/M2.3: CAVLC macroblock decoding, intra and inter prediction, DPB

2026-09-30 06:14:18 -04:00

params.rs

M2.1: H.264 NAL/SPS/PPS/slice header parsing

2026-09-30 06:12:38 -04:00

picture.rs

h264: never crash — no unwrap/expect in the decoder, deny them

2026-10-04 11:30:55 -04:00

slice.rs

M2.1: H.264 NAL/SPS/PPS/slice header parsing

2026-09-30 06:12:38 -04:00

slicedec.rs

h264: never crash — no unwrap/expect in the decoder, deny them

2026-10-04 11:30:55 -04:00

synth_tests.rs

T1: shared ffmpeg/ffprobe discovery in filmcraft-testkit

2026-10-01 00:10:59 -04:00

tables.rs

M2.1: H.264 NAL/SPS/PPS/slice header parsing

2026-09-30 06:12:38 -04:00

transform.rs

h264: dequantisation wraps instead of overflowing on huge levels

2026-10-04 11:56:22 -04:00