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Code Issues Releases Wiki Activity

Add support for 13k Voice (Qclp) in 3g2 files 

Fix vorbis detection so that it doesn't misdetect other codecs



git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@19369 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rtogni 2006-08-11 22:57:33 +00:00
parent 51d4c32446
commit 1c4b71edd9
2 changed files with 11 additions and 1 deletions
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10
libmpdemux/demux_mov.c
View File

@ -807,7 +807,9 @@ static void lschunks(demuxer_t* demuxer,int level,off_t endpos,mov_track_t* trak
if(atom_len > 8) {
esds_t esds;
if(!mp4_parse_esds(&trak->stdata[36+adjust], atom_len-8, &esds)) {
if(sh->format==0x6134706D && esds.decoderConfigLen > 8)
/* 0xdd is a "user private" id, not an official allocated id (see http://www.mp4ra.org/object.html),
so perform some extra checks to be sure that this is really vorbis audio */
if(esds.objectTypeId==0xdd && esds.streamType==0x15 && sh->format==0x6134706D && esds.decoderConfigLen > 8)
{
//vorbis audio
unsigned char *buf[3];
@ -861,6 +863,12 @@ quit_vorbis_block:
if(esds.objectTypeId==MP4OTI_MPEG1Audio || esds.objectTypeId==MP4OTI_MPEG2AudioPart3)
sh->format=0x55; // .mp3
if(esds.objectTypeId==MP4OTI_13kVoice) { // 13K Voice, defined by 3GPP2
sh->format=mmioFOURCC('Q', 'c', 'l', 'p');
trak->nchannels=sh->channels=1;
trak->samplebytes=sh->samplesize=1;
}
// dump away the codec specific configuration for the AAC decoder
if(esds.decoderConfigLen){
if( (esds.decoderConfig[0]>>3) == 29 )

2
libmpdemux/parse_mp4.h
View File

@ -59,6 +59,8 @@
#define MP4OTI_MPEG1Audio 0x6B
/* JPEG visual stream */
#define MP4OTI_JPEG 0x6C
/* 3GPP2 */
#define MP4OTI_13kVoice 0xE1
/* I define uint24 here for better understanding */
#ifndef uint24_t