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cbr audio fix

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2544 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2001-10-29 21:25:10 +00:00
parent d9ee674497
commit 4e83a60098
1 changed files with 27 additions and 6 deletions
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33
libmpdemux/demux_mov.c
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@ -424,13 +424,22 @@ static void lschunks(demuxer_t* demuxer,int level,off_t endpos,mov_track_t* trak
sh->format=trak->fourcc;
mp_msg(MSGT_DEMUX, MSGL_INFO, "Audio bits: %d chans: %d\n",trak->stdata[19],trak->stdata[17]);
mp_msg(MSGT_DEMUX, MSGL_INFO, "Fourcc: %.4s\n",&trak->fourcc);
#if 0
{ FILE* f=fopen("stdata.dat","wb");
fwrite(trak->stdata,trak->stdata_len,1,f);
fclose(f); }
{ FILE* f=fopen("tkdata.dat","wb");
fwrite(trak->tkdata,trak->tkdata_len,1,f);
fclose(f); }
#endif
// Emulate WAVEFORMATEX struct:
sh->wf=malloc(sizeof(WAVEFORMATEX));
memset(sh->wf,0,sizeof(WAVEFORMATEX));
sh->wf->nChannels=trak->stdata[17];
sh->wf->wBitsPerSample=trak->stdata[19];
sh->wf->nSamplesPerSec=trak->timescale;
sh->wf->nAvgBytesPerSec=sh->wf->nChannels*((sh->wf->wBitsPerSample+7)/8)*sh->wf->nSamplesPerSec;
sh->wf->nChannels=(trak->stdata[16]<<8)+trak->stdata[17];
sh->wf->wBitsPerSample=(trak->stdata[18]<<8)+trak->stdata[19];
// sh->wf->nSamplesPerSec=trak->timescale;
sh->wf->nSamplesPerSec=(trak->stdata[24]<<8)+trak->stdata[25];
sh->wf->nAvgBytesPerSec=sh->wf->nChannels*sh->wf->wBitsPerSample*sh->wf->nSamplesPerSec/8;
// Selection:
if(demuxer->audio->id==-1 || demuxer->audio->id==priv->track_db){
// (auto)selected audio track:
@ -697,8 +706,20 @@ if(trak->samplesize){
if(trak->pos>=trak->chunks_size) return 0; // EOF
stream_seek(demuxer->stream,trak->chunks[trak->pos].pos);
pts=(float)(trak->chunks[trak->pos].sample*trak->duration)/(float)trak->timescale;
x=trak->chunks[trak->pos].size*trak->samplesize;
x/=ds->ss_div; x*=ds->ss_mul; // compression ratio fix
x=trak->chunks[trak->pos].size;
// x=trak->chunks[trak->pos].size*trak->samplesize;
if(trak->samplesize!=1) printf("WARNING! Samplesize=%d \n",trak->samplesize);
if(trak->stdata_len>=36){
// extended stsd header - works for CBR MP3:
x/=(trak->stdata[30]<<8)+trak->stdata[31]; // samples/packet
// x*=(trak->stdata[34]<<8)+trak->stdata[35]; // bytes/packet
x*=(trak->stdata[38]<<8)+trak->stdata[39]; // bytes/frame
} else {
// works for ima4: -- we should find this info in mov headers!
x/=ds->ss_div; x*=ds->ss_mul; // compression ratio fix ! HACK !
// x*=(trak->stdata[18]<<8)+trak->stdata[19];x/=8; // bits/sample
}
ds_read_packet(ds,demuxer->stream,x,pts,trak->chunks[trak->pos].pos,0);
if(ds==demuxer->audio) mp_msg(MSGT_DEMUX, MSGL_DBG2, "sample %d bytes pts %5.3f\n",trak->chunks[trak->pos].size*trak->samplesize,pts);
} else {