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support raw ac3 (in private pes packets without the usual dvd 4 bytes substream header). Patch by Matthias Scharzott 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15816 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nicodvb 2005-06-25 13:25:27 +00:00
parent 4249304686
commit 999ac17eba
1 changed files with 18 additions and 2 deletions
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20
libmpdemux/demux_mpg.c
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@ -262,8 +262,22 @@ static int demux_mpg_read_packet(demuxer_t *demux,int id){
//============== DVD Audio sub-stream ======================
if(id==0x1BD){
int aid=stream_read_char(demux->stream);--len;
if(len<3) return -1; // invalid audio packet
int aid, rawa52 = 0;
off_t tmppos;
unsigned int tmp;
tmppos = stream_tell(demux->stream);
tmp = stream_read_word(demux->stream);
stream_seek(demux->stream, tmppos);
/// vdr stores A52 without the 4 header bytes, so we have to check this condition first
if(tmp == 0x0B77) {
aid = 128;
rawa52 = 1;
}
else {
aid=stream_read_char(demux->stream);--len;
if(len<3) return -1; // invalid audio packet
}
// AID:
// 0x20..0x3F subtitle
@ -293,11 +307,13 @@ static int demux_mpg_read_packet(demuxer_t *demux,int id){
ds=demux->audio;
if(!ds->sh) ds->sh=demux->a_streams[aid];
// READ Packet: Skip additional audio header data:
if(!rawa52) {
c=stream_read_char(demux->stream);//num of frames
type=stream_read_char(demux->stream);//startpos hi
type=(type<<8)|stream_read_char(demux->stream);//startpos lo
// printf("\r[%02X][%04X]",c,type);
len-=3;
}
if((aid&0xE0)==0xA0 && len>=3){
unsigned char* hdr;
// save audio header as codecdata!