static void dtmf_mcu_Init(kal_uint16 uSampleRate)
{
kal_uint32 uIntBufSize=0, uPcmBufSize=0, uTotalBufferSize=0;
kal_uint8 *pAllocBuf;
DTMF_SR uSr=0;
memset(&DTMF_SW, 0, sizeof(DTMF_SW));
DTMF_SW.uSampleRate = uSampleRate;
switch (DTMF_SW.uSampleRate)
{
case 8000:
uSr = DTMF_8K;
break;
case 11025:
uSr = DTMF_11K;
break;
case 12000:
uSr = DTMF_12K;
break;
case 16000:
uSr = DTMF_16K;
break;
case 22050:
uSr = DTMF_22K;
break;
case 24000:
uSr = DTMF_24K;
break;
case 32000:
uSr = DTMF_32K;
break;
case 44100:
uSr = DTMF_44K;
break;
case 48000:
uSr = DTMF_48K;
break;
default:
ASSERT(0);
break;
}
DTMF_GetBufferSize(&uIntBufSize, &uPcmBufSize, uSr, DTMF_MONO);
uTotalBufferSize = uIntBufSize + uPcmBufSize * DTMF_BUFFERED_FRAME_NUMBER;
kal_trace( TRACE_GROUP_AUD_PLAYBACK, MCU_DTMF_INIT, uSampleRate, uPcmBufSize, uTotalBufferSize);
pAllocBuf = (kal_uint8 *)audio_alloc_mem(uTotalBufferSize);
ASSERT(pAllocBuf);
ASSERT(uIntBufSize);
ASSERT(uPcmBufSize);
DTMF_SW.uFrameByte = uPcmBufSize;
DTMF_SW.RingBuffer.rb_base = (kal_uint8*)pAllocBuf;
DTMF_SW.RingBuffer.rb_size = uPcmBufSize * DTMF_BUFFERED_FRAME_NUMBER;
DTMF_SW.RingBuffer.write = uPcmBufSize * uPreSilenceLength; //fill a silence to prevent pop up noise
DTMF_SW.RingBuffer.read=0;
pAllocBuf += uPcmBufSize * DTMF_BUFFERED_FRAME_NUMBER;
DTMF_SW.pHandle = DTMF_Init( (void *)pAllocBuf, DTMF_CONTINUOUS, uSr, DTMF_MONO);
ASSERT(DTMF_SW.pHandle);
DTMF_SW.uAudId = L1Audio_GetAudioID();
L1Audio_SetFlag( DTMF_SW.uAudId );
L1Audio_SetEventHandler( DTMF_SW.uAudId, dtmf_mcu_Process );
}
void *audio_alloc_ext_mem_simplified(kal_uint32 size)
{
return audio_alloc_mem(size);
}
