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Commit Graph

10 Commits

Author SHA1 Message Date
Andreas Rheinhardt
f812913451 avcodec/arbc: Mark decoder as init-threadsafe
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-05-02 03:50:49 +02:00
Andreas Rheinhardt
a247ac640d avcodec: Constify AVCodecs
Given that the AVCodec.next pointer has now been removed, most of the
AVCodecs are not modified at all any more and can therefore be made
const (as this patch does); the only exceptions are the very few codecs
for external libraries that have a init_static_data callback.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2021-04-27 10:43:15 -03:00
Michael Niedermayer
cdd886a286 avcodec/arbc: Skip tiles in fill_tileX() which are completely outside
Fixes: signed integer overflow: 2052526848 + 147237888 cannot be represented in type 'int'
Fixes: 14441/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5717632944177152
Fixes: 14453/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5739679254577152

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
7c2ee8d43d avcodec/arbc: Try to correct keyframe/frame type
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-04-24 17:05:02 +02:00
Michael Niedermayer
8b10f09fd5 avcodec/arbc: Skip unchanged frames
Fixes: Timeout (16sec -> 5sec)
Fixes: 14128/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5767365721063424

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-04-24 17:05:02 +02:00
Michael Niedermayer
9d20901b92 avcodec/arbc: Check nb_segments before allocating and copying frame
Fixes: Timeout (30sec -> 2sec)
Fixes: 13578/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5685625527730176

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-03-20 21:12:45 +01:00
Carl Eugen Hoyos
4602456c4f lavc/arbc: Use AV_WB24() where applicable. 2019-03-20 17:53:34 +01:00
Michael Niedermayer
160851bcee avcodec/arbc: Check nb_tiles against dimensions
Fixes: Timeout
Fixes: 12967/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5639021454163968

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-02-25 18:03:24 +01:00
James Almer
286e58bb1f avcodec/arbc: clear decoder state when seeking
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2019-01-28 18:14:08 -03:00
Paul B Mahol
795af110f7 avcodec: add ARBC decoder
Thanks Kostya for great help in reversing binary.
2019-01-27 13:53:29 +01:00