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Code Issues Releases Activity

avformat/movenc: Check input sample count

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Fixes: division by 0
Fixes: fpe_movenc.c_199_1.wav
Fixes: fpe_movenc.c_199_2.wav
Fixes: fpe_movenc.c_199_3.wav
Fixes: fpe_movenc.c_199_4.wav
Fixes: fpe_movenc.c_199_5.wav
Fixes: fpe_movenc.c_199_6.wav
Fixes: fpe_movenc.c_199_7.wav

Found-by: #CHEN HONGXU# <HCHEN017@e.ntu.edu.sg>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3a2d21bc5f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-07-06 22:23:25 +02:00
parent 4ead5a9470
commit 790e6fead0
1 changed files with 5 additions and 0 deletions
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5
libavformat/movenc.c
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@ -4437,6 +4437,11 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
else
samples_in_chunk = 1;
if (samples_in_chunk < 1) {
av_log(s, AV_LOG_ERROR, "fatal error, input packet contains no samples\n");
return AVERROR_PATCHWELCOME;
}
/* copy extradata if it exists */
if (trk->vos_len == 0 && enc->extradata_size > 0 &&
!TAG_IS_AVCI(trk->tag) &&