idf: Improve idf_probe() so it doesnt succeed on 0 byte input

This commit is contained in:
Michael Niedermayer 2011-10-16 02:38:02 +02:00
parent 3e01c9b547
commit 658c5209fb

View File

@ -261,7 +261,9 @@ static const uint8_t idf_magic[] = {
static int idf_probe(AVProbeData *p)
{
if (!memcmp(p->buf, idf_magic, FFMIN(sizeof(idf_magic), p->buf_size)))
if (p->buf_size < sizeof(idf_magic))
return 0;
if (!memcmp(p->buf, idf_magic, sizeof(idf_magic)))
return AVPROBE_SCORE_MAX;
return 0;
}