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avformat/ty: try harder to find stream signature 

Search all chunks, not just first one.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2017-11-06 20:50:16 +01:00
parent f7c01ff24d
commit cdd19e2c56
1 changed files with 9 additions and 4 deletions
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13
libavformat/ty.c
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@ -108,11 +108,16 @@ typedef struct TYDemuxContext {
static int ty_probe(AVProbeData *p)
{
if (AV_RB32(p->buf) == TIVO_PES_FILEID &&
AV_RB32(p->buf + 4) == 0x02 &&
AV_RB32(p->buf + 8) == CHUNK_SIZE) {
return AVPROBE_SCORE_MAX;
int i;
for (i = 0; i + 12 < p->buf_size; i += CHUNK_SIZE) {
if (AV_RB32(p->buf + i) == TIVO_PES_FILEID &&
AV_RB32(p->buf + i + 4) == 0x02 &&
AV_RB32(p->buf + i + 8) == CHUNK_SIZE) {
return AVPROBE_SCORE_MAX;
}
}
return 0;
}