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bit: rewrite probe

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-09-25 05:15:30 +02:00
parent 21922dc5ae
commit dfc571ff18
1 changed files with 9 additions and 11 deletions
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20
libavformat/bit.c
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@ -10,19 +10,17 @@
static int probe(AVProbeData *p) static int probe(AVProbeData *p)
{ {
int i; int i, j;
i=AV_RL16(&p->buf[0]);
if(i != SYNC_WORD)
return 0;
switch(AV_RL16(&p->buf[2])) for(i=0; i+3<p->buf_size && i< 10*0x50; ){
{ if(AV_RL16(&p->buf[0]) != SYNC_WORD)
case 0x40: return 0;
case 0x50: j=AV_RL16(&p->buf[2]);
return AVPROBE_SCORE_MAX/2; if(j!=0x40 && j!=0x50)
default: return 0;
return 0; i+=j;
} }
return AVPROBE_SCORE_MAX/2;
} }
static int read_header(AVFormatContext *s, AVFormatParameters *ap) static int read_header(AVFormatContext *s, AVFormatParameters *ap)