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avformat/avidec: optimize probe

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about 2x as fast

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-12-23 16:32:26 +01:00
parent f7f4a90174
commit 0d7a14e236
1 changed files with 2 additions and 2 deletions
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4
libavformat/avidec.c
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@ -1863,8 +1863,8 @@ static int avi_probe(AVProbeData *p)
/* check file header */
for (i = 0; avi_headers[i][0]; i++)
if (!memcmp(p->buf, avi_headers[i], 4) &&
!memcmp(p->buf + 8, avi_headers[i] + 4, 4))
if (AV_RL32(p->buf ) == AV_RL32(avi_headers[i] ) &&
AV_RL32(p->buf + 8) == AV_RL32(avi_headers[i] + 4))
return AVPROBE_SCORE_MAX;
return 0;