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| author | Michael Niedermayer <michaelni@gmx.at> | 2011-10-18 14:08:06 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-10-18 14:08:06 +0200 |
| commit | 73fb23dc5a5b0d91491c8c4645134e2f7a9e6965 (patch) | |
| tree | 651c91902b85178b1c74cb3bb62527d77595ed1e | |
| parent | 4e3303cf3162ec38f39fe2f264e8d5c845e30d2b (diff) | |
| download | ffmpeg-73fb23dc5a5b0d91491c8c4645134e2f7a9e6965.tar.gz | |
mpeg12_parser: make mpegvideo_split() more robust
I just found this issue while debuging, i dont have a testcase.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/mpegvideo_parser.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavcodec/mpegvideo_parser.c b/libavcodec/mpegvideo_parser.c index bcbe1f112d..25028a9eb1 100644 --- a/libavcodec/mpegvideo_parser.c +++ b/libavcodec/mpegvideo_parser.c @@ -164,10 +164,13 @@ static int mpegvideo_split(AVCodecContext *avctx, { int i; uint32_t state= -1; + int found=0; for(i=0; i<buf_size; i++){ state= (state<<8) | buf[i]; - if(state != 0x1B3 && state != 0x1B5 && state < 0x200 && state >= 0x100) + if(state == 0x1B3){ + found=1; + }else if(found && state != 0x1B5 && state < 0x200 && state >= 0x100) return i-3; } return 0; |