static int ast_probe(AVProbeData *p)
{
- if (AV_RL32(p->buf) == MKTAG('S','T','R','M') &&
- AV_RB16(p->buf + 10) &&
- AV_RB16(p->buf + 12) &&
- AV_RB32(p->buf + 16))
- return AVPROBE_SCORE_MAX / 3 * 2;
- return 0;
+ if (AV_RL32(p->buf) != MKTAG('S','T','R','M'))
+ return 0;
+
+ if (!AV_RB16(p->buf + 10) ||
+ !AV_RB16(p->buf + 12) || AV_RB16(p->buf + 12) > 256 ||
+ !AV_RB32(p->buf + 16) || AV_RB32(p->buf + 16) > 8*48000)
+ return 1;
+
+ return AVPROBE_SCORE_MAX / 3 * 2;
}
static int ast_read_header(AVFormatContext *s)