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Do not detect mov with maximum score if the atom size is too small.

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Fixes mpegts-in-mov, ticket #987 / issue 2223.
This commit is contained in:
Carl Eugen Hoyos 2012-10-23 22:41:15 +02:00
parent 8b03cd3cd7
commit 2fdc6f355c
1 changed files with 8 additions and 1 deletions
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9
libavformat/mov.c
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@ -2879,7 +2879,14 @@ static int mov_probe(AVProbeData *p)
case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
case MKTAG('f','t','y','p'):
score = AVPROBE_SCORE_MAX;
if (AV_RB32(p->buf+offset) < 8 &&
(AV_RB32(p->buf+offset) != 1 ||
offset + 12 > (unsigned int)p->buf_size ||
AV_RB64(p->buf+offset + 8) == 0)) {
score = FFMAX(score, AVPROBE_SCORE_MAX - 50);
} else {
score = AVPROBE_SCORE_MAX;
}
offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
break;
/* those are more common words, so rate then a bit less */