diff options
Diffstat (limited to 'libavformat/psxstr.c')
| -rw-r--r-- | libavformat/psxstr.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/libavformat/psxstr.c b/libavformat/psxstr.c index bad3d33519..f090cd4349 100644 --- a/libavformat/psxstr.c +++ b/libavformat/psxstr.c @@ -67,9 +67,9 @@ static const char sync_header[12] = {0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf static int str_probe(AVProbeData *p) { int start; + uint8_t *sector; - /* need at least 0x38 bytes to validate */ - if (p->buf_size < 0x38) + if (p->buf_size < RAW_CD_SECTOR_SIZE) return 0; if ((AV_RL32(&p->buf[0]) == RIFF_TAG) && @@ -80,10 +80,19 @@ static int str_probe(AVProbeData *p) } else start = 0; + sector= p->buf + start; + /* look for CD sync header (00, 0xFF x 10, 00) */ if (memcmp(p->buf+start,sync_header,sizeof(sync_header))) return 0; + if(sector[0x11] >= 32) + return 0; + if( (sector[0x12] & CDXA_TYPE_MASK) != CDXA_TYPE_VIDEO + && (sector[0x12] & CDXA_TYPE_MASK) != CDXA_TYPE_AUDIO + && (sector[0x12] & CDXA_TYPE_MASK) != CDXA_TYPE_DATA) + return 0; + /* MPEG files (like those ripped from VCDs) can also look like this; * only return half certainty */ return 50; |