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| author | Ivan <grigoriev.ivan.a@gmail.com> | 2016-04-12 16:32:04 -0400 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-04-17 02:39:36 +0200 |
| commit | 3a727606c474d3d0b9efa3c900294a84bdb5e331 (patch) | |
| tree | 20ee32453cab9811dec363e90e577d85415be59c | |
| parent | b63ba3a51782baca737e646110f4832f8abbaadd (diff) | |
| download | ffmpeg-streaming-3a727606c474d3d0b9efa3c900294a84bdb5e331.zip ffmpeg-streaming-3a727606c474d3d0b9efa3c900294a84bdb5e331.tar.gz | |
avcodec/h264: Fix for H.264 configuration parsing
Sometimes video fails to decode if H.264 configuration changes mid stream.
The reason is that configuration parser assumes that nal_ref_idc is equal to 11b
while actually some codecs but 01b there. The H.264 spec is somewhat
vague about this but it looks like it allows any non-zero nal_ref_idc for sps/pps.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/h264.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/h264.c b/libavcodec/h264.c index f1399b8..88768af 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -1781,7 +1781,7 @@ static int is_extra(const uint8_t *buf, int buf_size) const uint8_t *p= buf+6; while(cnt--){ int nalsize= AV_RB16(p) + 2; - if(nalsize > buf_size - (p-buf) || p[2]!=0x67) + if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7) return 0; p += nalsize; } @@ -1790,7 +1790,7 @@ static int is_extra(const uint8_t *buf, int buf_size) return 0; while(cnt--){ int nalsize= AV_RB16(p) + 2; - if(nalsize > buf_size - (p-buf) || p[2]!=0x68) + if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 8) return 0; p += nalsize; } |
