int aac_open(auds_t *auds, char *fname)
{
aac_t *aac=malloc(sizeof(aac_t));
if(!aac) return -1;
memset(aac,0,sizeof(aac_t));
auds->stream=(aac_t*)aac;
aac->fname=(char *)malloc(strlen(fname)+1);
if(!aac->fname) goto erexit;
strcpy(aac->fname,fname);
aac->buffer=(u_int8_t *)malloc(MAX_SAMPLES_IN_CHUNK*4+16);
if(!aac->buffer) goto erexit;
auds->sigchld_cb=sigchld_callback;
auds->sample_rate=DEFAULT_SAMPLE_RATE;
read_header(auds, fname);
if(access(FIFO_NAME,F_OK) && mkfifo(FIFO_NAME,0600)<0){
ERRMSG("can't make a named fifo:%s\n",FIFO_NAME);
goto erexit;
}
run_decoder(aac);
auds->chunk_size=aud_clac_chunk_size(auds->sample_rate);
return 0;
erexit:
aac_close(auds);
return -1;
}
int pcm_open(auds_t *auds, char *fname)
{
pcm_t *pcm=malloc(sizeof(pcm_t));
if(!pcm) return -1;
memset(pcm,0,sizeof(pcm_t));
auds->stream=(void *)pcm;
pcm->dfd=open(fname, O_RDONLY|O_NONBLOCK);
if(pcm->dfd<0) goto erexit;
auds->sample_rate=DEFAULT_SAMPLE_RATE;
auds->chunk_size=aud_clac_chunk_size(auds->sample_rate);
pcm->buffer=(__u8 *)malloc(MAX_SAMPLES_IN_CHUNK*4+16);
if(!pcm->buffer) goto erexit;
return 0;
erexit:
pcm_close(auds);
return -1;
}
int wav_open(auds_t *auds, char *fname)
{
wav_t *wav=malloc(sizeof(wav_t));
if(!wav) return -1;
memset(wav,0,sizeof(wav_t));
auds->stream=(void *)wav;
wav->inf=fopen(fname,"r");
if(!wav->inf) goto erexit;
if(read_wave_header(wav, &auds->sample_rate, &auds->channels)==-1) goto erexit;
auds->chunk_size=aud_clac_chunk_size(auds->sample_rate);
wav->buffer=(__u8 *)malloc(MAX_SAMPLES_IN_CHUNK*4+16);
if(!wav->buffer) goto erexit;
return 0;
erexit:
wav_close(auds);
return -1;
}
int wav_open(auds_t *auds, char *fname)
{
struct stat finfo;
wav_t *wav=malloc(sizeof(wav_t));
if(!wav) return -1;
memset(wav,0,sizeof(wav_t));
auds->stream=(void *)wav;
wav->inf=fopen(fname,"r");
if(!wav->inf) goto erexit;
if ( csync!=0 )
{
wav->inf2=fopen(fname,"r");
if(!wav->inf2) goto erexit;
}
if(read_wave_header(wav, &auds->sample_rate, &auds->channels)==-1) goto erexit;
auds->chunk_size=aud_clac_chunk_size(auds->sample_rate);
wav->buffer=(uint8_t *)malloc(MAX_SAMPLES_IN_CHUNK*4+16);
if(!wav->buffer) goto erexit;
if(stat(fname,&finfo)<0)
{
ERRMSG( "Couldn't get file size\n" );
fduration=0;
}
else
{
fduration=(finfo.st_size-sizeof(wave_header_t))/(sizeof(short)*auds->channels*auds->sample_rate);
flength=(finfo.st_size-sizeof(wave_header_t))/(sizeof(short)*auds->channels);
DBGMSG( "duration in seconds : %d\n", fduration );
}
DBGMSG( "Start time is %ld\n", startinms );
if ( startinms != -1 )
{
long nbbytes = sizeof(short)*auds->channels*auds->sample_rate;
nbbytes *= startinms/1000;
DBGMSG( "inf : Seeking to %ld bytes\n", nbbytes );
if ( fseek( wav->inf, nbbytes, SEEK_CUR ) < 0 )
{
ERRMSG( "Couldn't seek specified start time : %s", strerror( errno ) );
wav_close(auds);
return -1;
}
if ( csync!=0 )
{
nbbytes = sizeof(short)*auds->channels*auds->sample_rate;
int mcsync = (int)(csync*1000.0);
nbbytes *= (startinms+mcsync)/1000;
DBGMSG( "inf2 : seeking to %ld from current\n", nbbytes );
if ( fseek( wav->inf2, nbbytes, SEEK_CUR ) < 0 )
{
ERRMSG( "Couldn't seek specified start time : %s", strerror( errno ) );
wav_close(auds);
return -1;
}
}
}
else
{
if ( csync!=0 )
{
int nbbytes = sizeof(short)*auds->channels*auds->sample_rate;
int mcsync = (int)(csync*1000.0);
nbbytes *= mcsync/1000;
DBGMSG( "inf2 : seeking to %d from current\n", nbbytes );
if ( fseek( wav->inf2, nbbytes, SEEK_CUR ) < 0 )
{
ERRMSG( "fseek ahead failed : reason : %s", strerror( errno ) );
goto erexit;
}
}
}
return 0;
erexit:
wav_close(auds);
return -1;
}
