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| author | Zhao Zhili <quinkblack@foxmail.com> | 2018-09-06 17:15:11 +0800 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-09-07 20:35:54 +0200 |
| commit | b9d1f5bf68111772e552421d21a32b0d61718899 (patch) | |
| tree | fdfbf7c993f0e14e04e0f7b5f1dcc5b52386a370 | |
| parent | 9f60c58586805cc5249ea0446a9bb86eed8bc311 (diff) | |
| download | ffmpeg-b9d1f5bf68111772e552421d21a32b0d61718899.tar.gz | |
avcodec/h264dec: check number of SPS in is_extra
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/h264dec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c index 8d115fa040..1f44ed18d9 100644 --- a/libavcodec/h264dec.c +++ b/libavcodec/h264dec.c @@ -855,6 +855,8 @@ static int is_extra(const uint8_t *buf, int buf_size) { int cnt= buf[5]&0x1f; const uint8_t *p= buf+6; + if (!cnt) + return 0; while(cnt--){ int nalsize= AV_RB16(p) + 2; if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7) |