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15 Commits

Author SHA1 Message Date
Andreas Rheinhardt
7eb9cf593e avcodec/pafvideo: Cleanup generically on init failure 
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-11-29 00:38:32 +01:00
Andreas Rheinhardt
54135a0bd2 avcodec/pafvideo: Mark decoder as init-threadsafe 
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-11-29 00:01:53 +01:00
Michael Niedermayer
859362a6f0 avcodec/pafvideo: Only clear frame when it was written to 
This avoids unneeded operations and makes the code faster.

Fixes: Timeout
Fixes: 15724/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PAF_VIDEO_fuzzer-5750842205929472 (12sec -> 9sec)
Fixes: 17625/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PAF_VIDEO_fuzzer-5640515311108096 (16sec -> 4sec)

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-11-09 14:13:34 +01:00
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>
 2019-09-04 10:07:12 -03:00
Michael Niedermayer
89836ad5a7 avcodec/pafvideo: Clear frame buffer later 
This way the clearing can be skipped in case of some errors.

Fixes: Timeout (11sec -> 344ms)
Fixes: 14670/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PAF_VIDEO_fuzzer-5769534503387136

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-06-04 13:06:41 +02:00
Michael Niedermayer
8d77debf7d avcodec/pafvideo: Check input space for decode_0() before slow operations 
Fixes: Timeout (11sec -> 2sec)
Fixes: 14403/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PAF_VIDEO_fuzzer-5697465698746368

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-05-09 22:04:14 +02:00
Michael Niedermayer
66acb63028 avcodec/pafvideo: Check allocated frame size 
Fixes: OOM
Fixes: 5549/clusterfuzz-testcase-minimized-5390553567985664

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-02-11 02:49:15 +01:00
Michael Niedermayer
9c85329cd0 avcodec/pafvideo: Check for bitstream end in decode_0() 
Fixes: Timeout
Fixes: 3529/clusterfuzz-testcase-5057068371279872

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-10-14 23:23:25 +02:00
Michael Niedermayer
c4360559ee avcodec/pafvideo: Fix assertion failure 
Fixes: 2100/clusterfuzz-testcase-minimized-4522961547558912

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-06 16:54:50 +02:00
Michael Niedermayer
faa5a2181d avcodec/pafvideo: Check packet size and frame code before ff_reget_buffer() 
Fixes 1745/clusterfuzz-testcase-minimized-6160693365571584
Fixes: Timeout

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-04 13:40:54 +02:00
Michael Niedermayer
444e9874a7 Merge commit 'def97856de6021965db86c25a732d78689bd6bb0' 
* commit 'def97856de6021965db86c25a732d78689bd6bb0':
  lavc: AV-prefix all codec capabilities

Conflicts:
	cmdutils.c
	ffmpeg.c
	ffplay.c
	libavcodec/8svx.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.c
	libavcodec/adpcm.c
	libavcodec/alac.c
	libavcodec/atrac3plusdec.c
	libavcodec/bink.c
	libavcodec/dnxhddec.c
	libavcodec/dvdec.c
	libavcodec/dvenc.c
	libavcodec/ffv1dec.c
	libavcodec/ffv1enc.c
	libavcodec/fic.c
	libavcodec/flacdec.c
	libavcodec/flacenc.c
	libavcodec/flvdec.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/gifdec.c
	libavcodec/h261dec.c
	libavcodec/hevc.c
	libavcodec/iff.c
	libavcodec/imc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libvo-aacenc.c
	libavcodec/libvorbisenc.c
	libavcodec/libvpxdec.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpegaudiodec_float.c
	libavcodec/msmpeg4dec.c
	libavcodec/mxpegdec.c
	libavcodec/nvenc_h264.c
	libavcodec/nvenc_hevc.c
	libavcodec/pngdec.c
	libavcodec/qpeg.c
	libavcodec/ra288.c
	libavcodec/rv10.c
	libavcodec/s302m.c
	libavcodec/sp5xdec.c
	libavcodec/takdec.c
	libavcodec/tiff.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/v210dec.c
	libavcodec/vp6.c
	libavcodec/vp9.c
	libavcodec/wavpack.c
	libavcodec/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 22:50:18 +02:00
Vittorio Giovara
def97856de lavc: AV-prefix all codec capabilities 
Express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:58 +01:00
Paul B Mahol
02dc75f218 avcodec/pafvideo: remove unused header 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2014-08-19 13:35:02 +00:00
Michael Niedermayer
0d1994ee3c Merge commit 'b0633f83f277c05bf1f617a99c7aedd2db8306e3' 
* commit 'b0633f83f277c05bf1f617a99c7aedd2db8306e3':
  paf: split audio and video decoder

Conflicts:
	libavcodec/pafvideo.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-07-06 20:11:40 +02:00
Nidhi Makhijani
b0633f83f2 paf: split audio and video decoder 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2014-07-06 09:36:17 -07:00