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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-05-07 03:12:34 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-05-07 03:12:34 +0200 |
| commit | 04b15a6055fc230a655091ce21303f9d2a996ed9 (patch) | |
| tree | 900e6e3736c592f20c6ac71f6b04e2d95986cbdf /libavformat/h263dec.c | |
| parent | 326463893beb5acbda1765a4854ec2fee3996bf3 (diff) | |
| download | ffmpeg-04b15a6055fc230a655091ce21303f9d2a996ed9.tar.gz | |
avformat/h263dec: shift data in state to make more bits available to probe
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/h263dec.c')
| -rw-r--r-- | libavformat/h263dec.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/libavformat/h263dec.c b/libavformat/h263dec.c index 19ed6a94ca..486e4b0eb8 100644 --- a/libavformat/h263dec.c +++ b/libavformat/h263dec.c @@ -34,21 +34,21 @@ static int h263_probe(AVProbeData *p) for(i=0; i<p->buf_size; i++){ code = (code<<8) + p->buf[i]; - if ((code & 0xfffffc0000) == 0x800000) { - src_fmt= (code>>2)&7; + if ((code & 0xfffffc000000) == 0x80000000) { + src_fmt= (code>>10)&7; if( src_fmt != last_src_fmt && last_src_fmt>0 && last_src_fmt<6 && src_fmt<6) res_change++; - if((code&0x300)==0x200 && src_fmt){ + if((code&0x30000)==0x20000 && src_fmt){ valid_psc++; last_gn=0; }else invalid_psc++; last_src_fmt= src_fmt; - } else if((code & 0xffff800000) == 0x800000) { - int gn= (code>>(23-5)) & 0x1F; + } else if((code & 0xffff80000000) == 0x80000000) { + int gn= (code>>(31-5)) & 0x1F; if(gn<last_gn){ invalid_psc++; }else |