static USC_Status Encode(USC_Handle handle, USC_PCMStream *in, USC_Bitstream *out)
{
AMRWB_Handle_Header *amrwb_header;
int bitrate_idx;
AMRWBEncoder_Obj *EncObj;
unsigned short work_buf[AMRWB_Frame];
int WrkRate, out_WrkRate;
if(in==NULL) return USC_BadDataPointer;
if(in->nbytes<AMRWB_Frame*sizeof(short)) return USC_NoOperation;
amrwb_header = (AMRWB_Handle_Header*)handle;
if(amrwb_header == NULL) return USC_InvalidHandler;
bitrate_idx = CheckRate_AMRWB(in->bitrate);
if(bitrate_idx < 0) return USC_UnsupportedBitRate;
amrwb_header->bitrate = in->bitrate;
EncObj = (AMRWBEncoder_Obj *)((char*)handle + sizeof(AMRWB_Handle_Header));
/* check for homing frame */
amrwb_header->reset_flag = ownTestPCMFrameHoming((short*)in->pBuffer);
if (amrwb_header->trunc) {
/* Delete the LSBs */
ippsAndC_16u((Ipp16u*)in->pBuffer, (Ipp16u)IO_MASK, work_buf, AMRWB_Frame);
// int i;
// short *pPCM = (short *)in->pBuffer;
// for (i = 0; i < AMRWB_Frame; i ++) work_buf[i] = (IO_MASK & pPCM[i]);
} else {
ippsCopy_16s((const Ipp16s*)in->pBuffer, (Ipp16s*)work_buf, AMRWB_Frame);
}
WrkRate = usc2amrwb[bitrate_idx];
if(apiAMRWBEncode(EncObj,(const unsigned short*)work_buf,(unsigned char*)out->pBuffer,(AMRWB_Rate_t *)&WrkRate,EncObj->iDtx) != APIAMRWB_StsNoErr){
return USC_NoOperation;
}
/* include frame type and mode information in serial bitstream */
ownSidSync(&amrwb_header->sid_state, WrkRate, (TXFrameType *)&out->frametype);
out->nbytes = getBitstreamSize(bitrate_idx, out->frametype, &out_WrkRate);
out->bitrate = CheckIdxRate_AMRWB(out_WrkRate);
if (amrwb_header->reset_flag != 0) {
ownSidSyncInit(&amrwb_header->sid_state);
apiAMRWBEncoder_Init(EncObj, EncObj->iDtx);
}
in->nbytes = AMRWB_Frame*sizeof(short);
return USC_NoError;
}
static USC_Status Encode(USC_Handle handle, USC_PCMStream *in, USC_Bitstream *out)
{
Ipp32s bitrate_idx, lenSamples, i;
Ipp8s pOutBuff[2];
Ipp16s *in_buff, *out_buff;
G722SB_Handle_Header *g722sb_header;
G722SB_Encoder_Obj *EncObj;
USC_CHECK_PTR(in);
USC_CHECK_PTR(out);
USC_CHECK_HANDLE(handle);
USC_BADARG(in->pcmType.bitPerSample!=G722SB_BITS_PER_SAMPLE, USC_UnsupportedPCMType);
USC_BADARG(in->pcmType.sample_frequency!=G722SB_SAMPLE_FREQ, USC_UnsupportedPCMType);
USC_BADARG(in->pcmType.nChannels!=G722SB_NCHANNELS, USC_UnsupportedPCMType);
USC_BADARG( NULL==in->pBuffer, USC_NoOperation );
USC_BADARG( NULL==out->pBuffer, USC_NoOperation );
g722sb_header = (G722SB_Handle_Header*)handle;
if(g722sb_header->direction != USC_ENCODE) return USC_NoOperation;
bitrate_idx = CheckRate_G722SB(in->bitrate);
USC_BADARG( bitrate_idx < 0, USC_UnsupportedBitRate );
USC_BADARG( in->nbytes <= 0, USC_NoOperation );
g722sb_header->bitrate = in->bitrate;
EncObj = (G722SB_Encoder_Obj *)((Ipp8s*)handle + sizeof(G722SB_Handle_Header));
if(g722sb_header->hpf) {
if(in->nbytes < g722sb_header->framesize) lenSamples = in->nbytes/sizeof(Ipp16s);
else lenSamples = g722sb_header->framesize/sizeof(Ipp16s);
if(apiG722SBEncode(EncObj, lenSamples, (Ipp16s*)in->pBuffer, out->pBuffer) != API_G722SB_StsNoErr){
return USC_NoOperation;
}
in->nbytes = lenSamples*sizeof(Ipp16s);
out->nbytes = getBitstreamSize(in, g722sb_header->hpf);
} else {
lenSamples = in->nbytes/sizeof(Ipp16s);
in_buff = (Ipp16s*)in->pBuffer;
out_buff = (Ipp16s*)out->pBuffer;
for(i=0; i<lenSamples; i++) {
if((in_buff[i] & 1) == 1) {
apiG722SBEncoder_Init(EncObj, g722sb_header->hpf);
out_buff[i] = 1;
} else {
if(apiG722SBEncode(EncObj, 1, (Ipp16s*)&in_buff[i], (Ipp8s *)&pOutBuff[0]) != API_G722SB_StsNoErr){
return USC_NoOperation;
}
out_buff[i] = (Ipp16s)((Ipp16s)(pOutBuff[0] << 8) & 0xFF00);
}
}
out->nbytes = in->nbytes;
}
out->frametype = 0;
out->bitrate = in->bitrate;
return USC_NoError;
}
static USC_Status Decode(USC_Handle handle, USC_Bitstream *in, USC_PCMStream *out)
{
AMRWB_Handle_Header *amrwb_header;
AMRWBDecoder_Obj *DecObj;
int bitrate_idx;
int mode;
RXFrameType rx_type;
short prm[56];
if(out==NULL) return USC_BadDataPointer;
if(handle==NULL) return USC_InvalidHandler;
amrwb_header = (AMRWB_Handle_Header*)handle;
DecObj = (AMRWBDecoder_Obj *)((char*)handle + sizeof(AMRWB_Handle_Header));
if(in == NULL) {
bitrate_idx = CheckRate_AMRWB(amrwb_header->bitrate_old);
if(bitrate_idx < 0) return USC_UnsupportedBitRate;
amrwb_header->bitrate = amrwb_header->bitrate_old;
out->bitrate = amrwb_header->bitrate_old;
rx_type = RX_SPEECH_LOST;
if(apiAMRWBDecode(DecObj,(const unsigned char*)LostFrame, usc2amrwb[bitrate_idx],rx_type,(unsigned short*)out->pBuffer) != APIAMRWB_StsNoErr){
return USC_NoOperation;
}
if(amrwb_header->trunc) {
ippsAndC_16u_I((Ipp16u)IO_MASK, (unsigned short*)out->pBuffer, AMRWB_Frame);
// int i;
// short *pPCM = (short *)out->pBuffer;
// for (i = 0; i < AMRWB_Frame; i ++) pPCM[i] &= IO_MASK;
}
amrwb_header->reset_flag = 0;
amrwb_header->reset_flag_old = 1;
out->nbytes = AMRWB_Frame*sizeof(short);
} else {
if(in->nbytes<=0) return USC_NoOperation;
bitrate_idx = CheckRate_AMRWB(in->bitrate);
if(bitrate_idx < 0) return USC_UnsupportedBitRate;
amrwb_header->bitrate = in->bitrate;
out->bitrate = in->bitrate;
rx_type = ownTX2RX((TXFrameType)in->frametype);
if ((rx_type == RX_SID_BAD) || (rx_type == RX_SID_UPDATE) || (rx_type == RX_NO_DATA)) {
mode = AMRWB_RATE_DTX;
} else {
mode = bitrate_idx;
}
if ((rx_type == RX_SPEECH_LOST)) {
out->bitrate = amrwb_header->usedRate;
amrwb_header->reset_flag = 0;
} else {
amrwb_header->usedRate = out->bitrate;
/* if homed: check if this frame is another homing frame */
ownConvert15(mode,in->pBuffer, prm);
amrwb_header->reset_flag = ownTestBitstreamFrameHoming(prm, mode);
}
/* produce encoder homing frame if homed & input=decoder homing frame */
if ((amrwb_header->reset_flag != 0) && (amrwb_header->reset_flag_old != 0))
{
ippsSet_16s(EHF_MASK, (short*)out->pBuffer, AMRWB_Frame);
}
else
{
if(apiAMRWBDecode(DecObj,(const unsigned char*)in->pBuffer,usc2amrwb[bitrate_idx],rx_type,(unsigned short*)out->pBuffer) != APIAMRWB_StsNoErr){
return USC_NoOperation;
}
if (amrwb_header->trunc) {
/* Truncate LSBs */
ippsAndC_16u_I((Ipp16u)IO_MASK, (unsigned short*)out->pBuffer, AMRWB_Frame);
// int i;
// short *pPCM = (short *)out->pBuffer;
// for (i = 0; i < AMRWB_Frame; i ++) pPCM[i] &= IO_MASK;
}
}
/* reset decoder if current frame is a homing frame */
if (amrwb_header->reset_flag != 0)
{
apiAMRWBDecoder_Init((AMRWBDecoder_Obj*)DecObj);
amrwb_header->usedRate = 6600;
}
amrwb_header->reset_flag_old = amrwb_header->reset_flag;
out->nbytes = AMRWB_Frame*sizeof(short);
{
int foo;
in->nbytes = getBitstreamSize(bitrate_idx, in->frametype, &foo);
}
}
return USC_NoError;
}
