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parse samplerate & channels from LPCM header 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7671 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-10-08 22:56:43 +00:00
parent 9d9dbdab95
commit ba57b1c37f
1 changed files with 17 additions and 5 deletions
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16
libmpcodecs/ad_dvdpcm.c
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@ -19,10 +19,22 @@ LIBAD_EXTERN(dvdpcm)
static int init(sh_audio_t *sh) static int init(sh_audio_t *sh)
{ {
/* DVD PCM Audio:*/ /* DVD PCM Audio:*/
if(sh->codecdata_len==3){
// we have LPCM header:
unsigned char h=sh->codecdata[1];
sh->channels=1+(h&7);
switch((h>>4)&3){
case 0: sh->samplerate=48000;break;
case 1: sh->samplerate=96000;break;
case 2: sh->samplerate=44100;break;
case 3: sh->samplerate=32000;break;
}
} else {
// use defaults:
sh->channels=2; sh->channels=2;
sh->samplerate=48000; sh->samplerate=48000;
sh->i_bps=2*2*48000; }
/* sh_audio->pcm_bswap=1;*/ sh->i_bps=2*sh->channels*sh->samplerate;
return 1; return 1;
} }