FFmpeg

Commit Graph

Author	SHA1	Message	Date
James Almer	9ea6d2149e	avcodec/decode: add a flags parameter to ff_reget_buffer() Some decoders may not need a writable buffer in some specific cases, but only a reference to the existing buffer with updated frame properties instead, for the purpose of returning duplicate frames. For this, the FF_REGET_BUFFER_FLAG_READONLY flag is added, which will prevent potential allocations and buffer copies when they are not needed. Signed-off-by: James Almer <jamrial@gmail.com>	5 years ago
Michael Niedermayer	c7f95d2bd9	avcodec/fic: Check input size against minimal frame size Fixes: Timeout (22sec ->54ms) Fixes: 14439/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-5660988231122944 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
Michael Niedermayer	db1c4acd02	avcodec/fic: Check that there is input left in fic_decode_block() Fixes: Timeout Fixes: 12450/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-5661984622641152 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	f89919d4fb	avcodec/fic: use init_get_bits8()	6 years ago
Michael Niedermayer	30a7a81cdc	avcodec/fic: Fail on invalid slice size/off Fixes: Timeout Fixes: 11486/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-5677133863583744 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	ae227fa1f2	avcodec/fic: change class name to more correct one	6 years ago
Michael Niedermayer	cb2f7ea96b	avcodec/fic: Check available input space for cursor Fixes: out of array read Fixes: 6546/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-6317064647081984 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	c6a11714c4	avcodec/fic: Avoid some magic numbers related to cursors Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	0c9d5b015c	avcodec/fic: Fixes signed integer overflow Fixes: runtime error: signed integer overflow: 1037142357 + 1227025305 cannot be represented in type 'int' Fixes: 3024/clusterfuzz-testcase-minimized-5885660323905536 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	a173f484b5	avcodec/fic: Fix multiple runtime error: signed integer overflow: 5793 * 419752 cannot be represented in type 'int' Fixes: 1669/clusterfuzz-testcase-minimized-5287529198649344 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	548459080b	avcodec/fic: Check coefficients Fixes: signed integer overflow: 1258291200 * 2 cannot be represented in type 'int' Fixes: 1413/clusterfuzz-testcase-minimized-5923451770503168 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	b20c71409b	avcodec/fic: Fix multiple left shift of negative value -15 Fixes: 1356/clusterfuzz-testcase-minimized-6008489086287872 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
Ronald S. Bultje	73f863d751	fic: set pict_type/key_frame after (instead of during) slice decoding. This fixes a race condition that was already documented in the source code, and is also reported by tsan in fate-fic-avi.	8 years ago
Alexandra Hájková	0f94de8a09	fic: Convert to the new bitstream reader	8 years ago
Diego Biurrun	d4c2103bd3	golomb: Convert to the new bitstream reader	8 years ago
Carl Eugen Hoyos	00ffbdfb68	lavc/fic: Do not warn about empty cursor. Fixes ticket #5174.	9 years ago
Carl Eugen Hoyos	47a11ff457	lavc/fic: Be less verbose for invisible cursor outside of video.	9 years ago
Carl Eugen Hoyos	db7d0d6e7c	lavc/fic: Cosmetics, fix a typo. Found by Moritz Barsnick	9 years ago
Clément Bœsch	fb99ef0bd3	avcodec: use AV_OPT_TYPE_BOOL in a bunch of places	9 years ago
Vittorio Giovara	def97856de	lavc: AV-prefix all codec capabilities Express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	10 years ago
Michael Niedermayer	d277b05c51	avcodec/fic: Add skip_cursor AVOption Previous version reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Paul B Mahol	392d975efe	avcodec: fix clobbered ff_get_buffer() Signed-off-by: Paul B Mahol <onemda@gmail.com>	10 years ago
Carl Eugen Hoyos	d457478fb0	Silence warnings for fic files with zero-sized cursors. Fixes ticket #4072.	10 years ago
Michael Niedermayer	1b5ec6a0c3	avcodec/fic: Check if a frame is available before using it Fixes null pointer dereference Fixes: ficvf.avi Found-by: Piotr Bandurski <ami_stuff@o2.pl> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	23cd5cb18f	avcodec/fic: avoid 2 additions per idct row before: 5225 decicycles in IDCT, 32756 runs, 12 skips after: 5057 decicycles in IDCT, 32765 runs, 3 skips Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Derek Buitenhuis	14da7f9eb7	fic: Support rendering cursors Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Derek Buitenhuis	d7eb8f9033	fic: Make warning message more accurate Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Derek Buitenhuis	7596fc3d4b	fic: Remove redundant clips The equations can't overflow or underflow anyway. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Derek Buitenhuis	e299cb2cd3	fic: Simplify alpha blending Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Derek Buitenhuis	6d149d2818	fic: Use proper quantization matrix index The matrices are not zigzagged. Fixes artefacting. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Derek Buitenhuis	9155c595f1	fic: Support rendering cursors Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Derek Buitenhuis	40b331e1f4	fic: Use proper quantization matrix index The matrices are not zigzagged. Fixes artefacting. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Michael Niedermayer	6f243b17c5	avcodec/fic: Fix return value check Fixes part of Ticket3466 Found-by: Andrey_Karpov / PVS-Studio Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Michael Niedermayer	144f7a561d	avcodec/fic: clear slice_data Fixes artifacts Fixes use of freed memory Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Michael Niedermayer	f34d3173fc	avcodec/fic: fix slice checks fix integer overflows Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Kostya Shishkov	93e15a3238	fic: use correct IDCT Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Michael Niedermayer	230db1426d	avcodec/fic: Fix return value check Fixes part of Ticket3466 Found-by: Andrey_Karpov / PVS-Studio Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Derek Buitenhuis	f87a6e500b	fic: Properly handle skip frames Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Michael Niedermayer	1db8bc5648	avcodec/fic: clear slice_data Fixes artifacts Fixes use of freed memory Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	d46ef40129	avcodec/fic: fix slice checks fix integer overflows Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Kostya Shishkov	cde7df25ef	Mirillis FIC video decoder Does not contain cursor rendering yet. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago

43 Commits (bcdf67c7fa49fec946cd681d1a5b46d5bde6f562)