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13 commits

Author SHA1 Message Date
Michael Niedermayer
61ff3047c5
avcodec/rv60dec: Check NEXT/LAST availability 
Fixes: NULL ptr use
Fixes: 378634700/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV60_fuzzer-5008344043028480

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2024-12-24 02:55:50 +01:00
Michael Niedermayer
2336fc44ac
avcodec/rv60dec: Use get_bits_long() 
Fixes: 378634700/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV60_fuzzer-5008344043028480
Fixes: assertion failure

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2024-12-24 02:55:18 +01:00
Michael Niedermayer
61cbcaf93f
avcodec/rv60dec: Check qp for intra 
The rv60_qp_to_idx table only supports qp up to 31 on intra

Fixes: global-buffer-overflow
Fixes: 377543818/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV60_fuzzer-5160167345291264

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2024-12-04 04:23:49 +01:00
Peter Ross
7b3bc4a45b avcodec/rv60: consistent indentation 2024-11-16 19:08:39 +11:00
Peter Ross
f7e7d63cbc avcodec/rv60: simplify fill_mv_skip_cand 2024-11-16 19:08:39 +11:00
Peter Ross
566b737a7a avcodec/rv60: loosen fill_mv_skip_cand top right and bottom left criteria 
Fixes ticket #11293.
 2024-11-16 19:08:39 +11:00
Peter Ross
2bbbf36fe2 avcodec/rv60: set populate_ipred src parameter to const 2024-11-09 08:50:59 +11:00
Peter Ross
006718c475 avcodec/rv60: align calc_sel_qp with reference decoder 
Fixes ticket #11290.
 2024-11-09 08:50:59 +11:00
Peter Ross
c8c6319ce1 avcodec/rv60: prevent decode_cu_r deadlock 
Fixes ticket #11289 (deadlock).
 2024-11-09 08:50:59 +11:00
Peter Ross
4d4d171afb avcodec/rv60: prevent decode_cu_r segfault 
Fixes ticket #11289 (crash).
 2024-11-09 08:50:59 +11:00
Peter Ross
923f45430c avcodec/rv60: check init_get_bits8 return value 
Fixes CID 1634471
 2024-11-09 08:50:58 +11:00
Peter Ross
d51a920556 avcodec/rv60: negative qp guard 
Fixes CID 1634472
 2024-11-09 08:50:58 +11:00
Peter Ross
33802e7c32 avcodec/rv60: RealVideo 6.0 decoder 
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Peter Ross <pross@xvid.org>
 2024-11-03 10:53:15 +11:00