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avformat/cafdec: improve probing

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This commit is contained in:
Paul B Mahol 2023-09-21 22:18:12 +02:00
parent ea06317190
commit 365529178d
1 changed files with 9 additions and 3 deletions
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10
libavformat/cafdec.c
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@ -52,9 +52,15 @@ typedef struct CafContext {
static int probe(const AVProbeData *p) static int probe(const AVProbeData *p)
{ {
if (AV_RB32(p->buf) == MKBETAG('c','a','f','f') && AV_RB16(&p->buf[4]) == 1) if (AV_RB32(p->buf) != MKBETAG('c','a','f','f'))
return AVPROBE_SCORE_MAX;
return 0; return 0;
if (AV_RB16(&p->buf[4]) != 1)
return 0;
if (AV_RB32(p->buf + 8) != MKBETAG('d','e','s','c'))
return 0;
if (AV_RB64(p->buf + 12) != 32)
return 0;
return AVPROBE_SCORE_MAX;
} }
/** Read audio description chunk */ /** Read audio description chunk */