avformat/avidec: optimize probe

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

View File

@ -1863,8 +1863,8 @@ static int avi_probe(AVProbeData *p)
/* check file header */ /* check file header */
for (i = 0; avi_headers[i][0]; i++) for (i = 0; avi_headers[i][0]; i++)
if (!memcmp(p->buf, avi_headers[i], 4) && if (AV_RL32(p->buf ) == AV_RL32(avi_headers[i] ) &&
!memcmp(p->buf + 8, avi_headers[i] + 4, 4)) AV_RL32(p->buf + 8) == AV_RL32(avi_headers[i] + 4))
return AVPROBE_SCORE_MAX; return AVPROBE_SCORE_MAX;
return 0; return 0;