/*************************************************************************
* Function : mp3decGetHeaderInfo
* Description :
* input parameters :
* return parameter :
*************************************************************************/
u32 mp3decGetHeaderInfo (e7b_mp3_header* pMP3Dec_info )
{
TRACE(4, "%s\n", __FUNCTION__);
/* Do the getHeaderInfo */
infXchgMP3[0] = MP3DEC_HEADERINFO;
e7b_interrupt_req();
/* Check if more input data is needed */
do {
dataMP3 = infXchgMP3[0];
if( ( dataMP3 != 0 ) && ( dataMP3 != MP3DEC_GETINPUT ) ) {
e7b_sleep( 0 );
} else if( dataMP3 == MP3DEC_GETINPUT ) {
if (!copy_input())
return MP3DEC_BROKEN_FRAME;
}
} while ( dataMP3 != 0 );
/* Read back the headerinfo */
// nrOfGranules = CarrierMP3[0];
pMP3Dec_info->samplesPerCh = CarrierMP3[0];
pMP3Dec_info->numChans = g_MP3NumChannels = CarrierMP3[1];
pMP3Dec_info->freeFormat = CarrierMP3[2];
pMP3Dec_info->bitsRequired = CarrierMP3[3];
pMP3Dec_info->id = CarrierMP3[4];
pMP3Dec_info->layer = CarrierMP3[5];
pMP3Dec_info->protection = CarrierMP3[6];
pMP3Dec_info->bitRateIndex = CarrierMP3[7];
pMP3Dec_info->bitRateKBPS = CarrierMP3[8];
pMP3Dec_info->sampleRateIndex = CarrierMP3[9];
pMP3Dec_info->sampleRateHz = CarrierMP3[10];
pMP3Dec_info->paddingBit = CarrierMP3[11];
pMP3Dec_info->privateBit = CarrierMP3[12];
pMP3Dec_info->mode = CarrierMP3[13];
pMP3Dec_info->modeExtension = CarrierMP3[14];
pMP3Dec_info->copyright = CarrierMP3[15];
pMP3Dec_info->originalHome = CarrierMP3[16];
pMP3Dec_info->emphasis = CarrierMP3[17];
#ifdef GRANULE_BASED
if( pMP3Dec_info->samplesPerCh == 1152 ) {
nrOfGranules = 2;
} else {
nrOfGranules = 1;
}
TRACE(1, "nrOfGranules=%d spc=%lu\n", nrOfGranules, pMP3Dec_info->samplesPerCh);
#endif
return MP3DEC_NO_ERR;
}
/*************************************************************************
* Function : mp3decSync
* Description :
* input parameters :
* return parameter :
*************************************************************************/
u32 mp3decSync (u32* pOffset)
{
u32 syncError = 0;
TRACE(4, "%s\n", __FUNCTION__);
/* Do the sync */
infXchgMP3[0] = MP3DEC_SYNC;
e7b_interrupt_req();
/* Check if more input data is needed */
do {
dataMP3 = infXchgMP3[0];
if( ( dataMP3 != 0 ) && ( dataMP3 != MP3DEC_GETINPUT ) ) {
TRACE(5, "WAIT_UNTIL_READY: mp3decSync dataMP3 0x%X\n", dataMP3);
e7b_sleep( 0 );
} else if( dataMP3 == MP3DEC_GETINPUT ) {
if (!copy_input()) /* caller should probably reset the decoder now */
return MP3DEC_NO_SYNCWORD;
}
} while ( dataMP3 != 0 );
syncError = CarrierMP3[0];
/* Calculate nr of bytes before sync, pointer is now after the sync word */
/* bitoffset/8 + (byteoffset - bufferstart) * 3 bytes per word - 4 bytes per sync */
*pOffset = (CarrierMP3[1] / 8) + (CarrierMP3[2] - CarrierMP3[3]) * 3 - 4;
TRACE(5, " sync: err=%d bito=%d byto=%d bs=%d offset=%d\n", syncError, CarrierMP3[1], CarrierMP3[2], CarrierMP3[3], *pOffset);
#if 0
{
int InpBsBuf = CarrierMP3[3];
u32 pInBufferEpics = (u32)xram2arm(InpBsBuf);
if (InpBsBuf >= 0 && InpBsBuf < 65536)
TRACE(5, " xmem[%d] %08x\n", InpBsBuf, *((u32 *)pInBufferEpics));
}
#endif
return syncError;
}
fa_signal_t fa_signal_copy(fa_signal_t signal)
{
switch (signal->tag) {
case time_signal:
return fa_signal_time();
case random_signal:
return fa_signal_random();
case constant_signal:
return copy_constant(signal);
case lift_signal:
return copy_lift(signal);
case lift2_signal:
return copy_lift2(signal);
case loop_signal:
return copy_loop(signal);
case delay_signal:
return copy_delay(signal);
case insert_signal:
return copy_insert(signal);
case custom_signal:
return copy_custom(signal);
case input_signal:
return copy_input(signal);
case output_signal:
return copy_output(signal);
default:
assert(false);
}
}
