}
} else {
if (flags & 2) {
- if (bps == 8)
+ if (bps == 8) {
// signed integer
if (flags & 4) return AV_CODEC_ID_PCM_S8;
else return AV_CODEC_ID_PCM_U8;
- else if (bps == 16) return AV_CODEC_ID_PCM_S16BE;
+ }else if (bps == 16) return AV_CODEC_ID_PCM_S16BE;
else if (bps == 24) return AV_CODEC_ID_PCM_S24BE;
else if (bps == 32) return AV_CODEC_ID_PCM_S32BE;
} else {
- if (bps == 8)
+ if (bps == 8) {
if (flags & 4) return AV_CODEC_ID_PCM_S8;
else return AV_CODEC_ID_PCM_U8;
- else if (bps == 16) return AV_CODEC_ID_PCM_S16LE;
+ }else if (bps == 16) return AV_CODEC_ID_PCM_S16LE;
else if (bps == 24) return AV_CODEC_ID_PCM_S24LE;
else if (bps == 32) return AV_CODEC_ID_PCM_S32LE;
}
static int mov_probe(AVProbeData *p)
{
- unsigned int offset;
+ int64_t offset;
uint32_t tag;
int score = 0;
+ int moov_offset = -1;
/* check file header */
offset = 0;
for (;;) {
/* ignore invalid offset */
if ((offset + 8) > (unsigned int)p->buf_size)
- return score;
+ break;
tag = AV_RL32(p->buf + offset + 4);
switch(tag) {
/* check for obvious tags */
- case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
case MKTAG('m','o','o','v'):
+ moov_offset = offset + 4;
+ case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
case MKTAG('m','d','a','t'):
case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
case MKTAG('f','t','y','p'):
- return AVPROBE_SCORE_MAX;
+ score = AVPROBE_SCORE_MAX;
+ offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
+ break;
/* those are more common words, so rate then a bit less */
case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
case MKTAG('w','i','d','e'):
case MKTAG('f','r','e','e'):
case MKTAG('j','u','n','k'):
case MKTAG('p','i','c','t'):
- return AVPROBE_SCORE_MAX - 5;
+ score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
+ offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
+ break;
case MKTAG(0x82,0x82,0x7f,0x7d):
case MKTAG('s','k','i','p'):
case MKTAG('u','u','i','d'):
case MKTAG('p','r','f','l'):
- offset = AV_RB32(p->buf+offset) + offset;
/* if we only find those cause probedata is too small at least rate them */
- score = AVPROBE_SCORE_MAX - 50;
+ score = FFMAX(score, AVPROBE_SCORE_MAX - 50);
+ offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
break;
default:
- /* unrecognized tag */
- return score;
+ offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
+ }
+ }
+ if(tag > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
+ /* moov atom in the header - we should make sure that this is not a
+ * MOV-packed MPEG-PS */
+ offset = moov_offset;
+
+ while(offset < (p->buf_size - 16)){ /* Sufficient space */
+ /* We found an actual hdlr atom */
+ if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
+ AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
+ AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
+ av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
+ /* We found a media handler reference atom describing an
+ * MPEG-PS-in-MOV, return a
+ * low score to force expanding the probe window until
+ * mpegps_probe finds what it needs */
+ return 5;
+ }else
+ /* Keep looking */
+ offset+=2;
}
}
+
+ return score;
}
// must be done after parsing all trak because there's no order requirement