FFmpeg

Commit Graph

Author	SHA1	Message	Date
Paul B Mahol	a064530da8	avcodec/scpr: add version 3 support Signed-off-by: Paul B Mahol <onemda@gmail.com>	6 years ago
Michael Niedermayer	d702769213	avcodec/scpr: Skip frames which change nothing Fixes: Timeout Fixes: 10292/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCPR_fuzzer-5687943864254464 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	6 years ago
Paul B Mahol	4b1b47e81b	avcodec/scpr: stop checking for overread twice	6 years ago
Paul B Mahol	cc24665f44	avcodec/scpr: make sure count and min are valid	6 years ago
Paul B Mahol	ce8807c290	avcodec/scpr: refactor repeated code into decode_units()	6 years ago
Paul B Mahol	d71dfc087b	avcodec/scpr: error out if run length is <= 0	6 years ago
Michael Niedermayer	3378194ce8	avcodec/scpr: Check for min > max in decompress_p() Fixes: Timeout Fixes: 9342/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCPR_fuzzer-4795990841229312 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	6 years ago
Paul B Mahol	324954cf96	avcodec/scpr: fix decoding of prev+top-topleft prediction in keyframes Signed-off-by: Paul B Mahol <onemda@gmail.com>	7 years ago
Paul B Mahol	22a878ecd1	avcodec/scpr: check for possible out of array access Signed-off-by: Paul B Mahol <onemda@gmail.com>	7 years ago
Michael Niedermayer	0fb33a8289	avcodec/scpr: Fix reading a pixel before the first Fixes: 5540/clusterfuzz-testcase-minimized-6122458273808384 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	981f04b2ae	avcodec/scpr: optimize shift loop. Speeds code up from 50sec to 15sec Fixes Timeout Fixes: 3242/clusterfuzz-testcase-5811951672229888 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Derek Buitenhuis	f7daed8545	scpr: Added missing error check Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	8 years ago
Michael Niedermayer	5666b95c9f	avcodec/scpr: mask bits to prevent out of array read Fixes: 1615/clusterfuzz-testcase-minimized-6625214647500800 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	2171dfae8c	avcodec/scpr: Fix multiple runtime error: index 256 out of bounds for type 'unsigned int [256]' Fixes: 1519/clusterfuzz-testcase-minimized-5286680976162816 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	7ac5067146	avcodec/scpr: Check y in first line loop in decompress_i() Fixes: out of array access Fixes: 1478/clusterfuzz-testcase-minimized-5285486908145664 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	f1a4dd5e48	avcodec/scpr: Fix multiple runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' Fixes: 1422/clusterfuzz-testcase-minimized-5030993939398656 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Paul B Mahol	807d5dcde9	avcodec/scpr: use correct linesize for prev frame Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	6d93e7d1a3	avcodec/scpr: fix top left prediction for special case when x is 0 for keyframes Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	86ab6b6e08	avcodec/scpr: check if total_freq is 0 in decode0 Fixes SIGFPE, closes #6196. Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	6d856b2579	avcodec/scpr: add support for older version Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	e01c32f260	avcodec/scpr: remove 4 dead store Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	0a28c50506	avcodec/scpr: improve motion vectors checking for out of buffer write Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	178cd50c47	avcodec/scpr: make sure that component value is <= 0x1F for 16 bpc Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	45ed942e7e	avcodec/scpr: improve check for out of range motion vectors Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	95a5af446b	avcodec/scpr: check that current row is in valid range Stops writing out of dst array. Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	fd7af82c53	avcodec/scpr: do not allow out of array access for 16bit case Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Paul B Mahol	039011b6b0	avcodec: add ScreenPressor decoder Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago

27 Commits (10a57f55e60902ab91388b8a46b73f1f4532f737)