📄 encoder.c
字号:
}
if(StreamEnd){
l = 0;
status = ippsResamplePolyphaseFixed_16s(pCodec->s11.ppState[0],pCodec->s11.p11,
(pCodec->s11.lastread-pCodec->s11.history-(int)pCodec->s11.time),
(short*)pTmp+InputLength,0.98f,&pCodec->s11.time,&l);
InputLength+=l;
}
}
if(InputLength>0)
FrameCounter = PrepareForCalculation(pCodec,pTmp,InputLength);
if(FrameCounter){
/* Start process wavebuffer */
Count = 0;
tc=1+pCodec->noise.Cur_TPrpocess; FrameCounter += pCodec->noise.Cur_TPrpocess;
for( ; tc < FrameCounter; tc++,pCodec->noise.Cur_TPrpocess++,pCodec->NumberFrame++){
if(pCodec->freq == r16KHz){
ippsLowHighFilter_Aurora_16s_Sfs(pCodec->noise.pBStateBig+480,
pBState_1+FRAMESHIFT*3, pCodec->noise.s16.dataHP+480, 160, pCodec->FirCoeff16sAlign, FILTERLENGTH,15);
ippsMove_16s(pCodec->noise.pBStateBig+160,pCodec->noise.pBStateBig,FILTERLENGTH+480);
}
else{
ippsCopy_16s(pCodec->noise.pBStateBig+append+pCodec->noise.start,
pBState_1+pCodec->noise.start,pCodec->noise.end);
}
/* VAD for noise estimation (VADNest) */
flagVAD = VADNest(&pCodec->noise.vad,tc,pBState_1+FRAMESHIFT);
/* perfom noise reduction */
DoNoiseReduction(pCodec,pCodec->noise.pBStateBuf,tc,pFFTOut,pNoiseDst,&tcur,pMelBank,pDen,flagVAD);
ippsVADDecision_Aurora_16s(pMelBank,pDen,pCodec->noise.vad.nbSpeechFrame,vad,pCodec->pVadMem);
if( vad[0] != IPP_PREPARE ){
if(vad[0]==IPP_VOICE)
pVadDst[pCodec->VadFrame++]=1;
else if(vad[0]==IPP_UNVOICE)
pVadDst[pCodec->VadFrame++]=0;
}
if(tcur){
CeptstrumCalculate(pCodec,pNoiseDst,tc);
ippsCopy_16s(pCodec->pFeatBuffer,pOutputBuffer+Count*(NUM_CEP_COEFF+1),(NUM_CEP_COEFF+1));
Count++;
}
/* Shift buffers */
ippsMove_16s(pCodec->noise.pBStateBuf+FRAMESHIFT,pCodec->noise.pBStateBuf,11*FRAMESHIFT);
/* Forming first buffer */
if(pCodec->noise.tail >= pCodec->FrameShift){
CopyBuffers(pCodec,pTmp+InputLength-pCodec->noise.tail,3*pCodec->FrameShift,pCodec->FrameShift);
pCodec->noise.tail -= pCodec->FrameShift;
}
if(pCodec->freq == r16KHz){
ippsMove_16s(pCodec->noise.s16.dataHP+80,pCodec->noise.s16.dataHP,480);
ippsMove_16s((Ipp16s*)(pCodec->noise.pFFT+FFTSIZE),(Ipp16s*)pCodec->noise.pFFT,FFTSIZE<<3);
}
}
if(pCodec->noise.tail>0 && pCodec->noise.tail<pCodec->FrameShift){
CopyBuffers(pCodec,pTmp+InputLength-pCodec->noise.tail,3*pCodec->FrameShift,pCodec->noise.tail);
}
}
if (StreamEnd){
while(1){
ippsVADFlush_Aurora_16s(vad,pCodec->pVadMem);
if(vad[0]==IPP_PREPARE)break;
if(vad[0]==IPP_VOICE)
pVadDst[pCodec->VadFrame++]=1;
else if(vad[0]==IPP_UNVOICE)
pVadDst[pCodec->VadFrame++]=0;
}
ResetAuroraEncoder(pCodec);
}
if(pCodec->freq == r11KHz){
ippsFree(pTmp);
}
return Count;
}
/* WAVEFORM -> QUANTIZED */
int ApplyAuroraEncoder_WQ(AuroraEncoder *pCodec, short *pInputSignal, int InputLength, unsigned char *pOutputBuffer,int StreamEnd){
int FrameCounter=0, Count=0;
int tcur = 0, tc, i,j,l;
Ipp16s pNoiseDst[200];
char flagVAD;
short *pTmp;
short *pInTmp;
Ipp16s *pBState_2 = pCodec->noise.pBStateBuf+320;
Ipp16s *pBState_1 = pBState_2+320;
Ipp32s *pFFTOut = pCodec->noise.pFFT+FFTSIZE*4;
Ipp16s pDen[FFTSPEC];
Ipp16s pMelBank[NUM_CHANNELS+2];
IppVADDecision_Aurora vad[1];
IppStatus status;
if ( (pCodec->EncoderOutput != QUANTIZED) && (pCodec->EncoderInput != WAVEFORM)){
printf("\n!!! ERROR: encoder was initialized with another output flag !!!");
return 0;
}
if (InputLength<=0){
FrameCounter=0;
ResetAuroraEncoder(pCodec);
return FrameCounter;
}
pTmp = pInputSignal;
if(pCodec->freq == r11KHz){
FrameCounter = (InputLength + pCodec->s11.lastread) / 11;
pTmp = ippsMalloc_16s(FrameCounter * 8 + 4);
FrameCounter=0;
if(InputLength + pCodec->s11.lastread >pCodec->s11.len){
pCodec->s11.len = InputLength + pCodec->s11.lastread;
pInTmp = ippsMalloc_16s(pCodec->s11.len);
ippsCopy_16s(pCodec->s11.p11,pInTmp,pCodec->s11.lastread);
ippsFree(pCodec->s11.p11);
pCodec->s11.p11 = pInTmp;
}
ippsCopy_16s(pInputSignal,pCodec->s11.p11 + pCodec->s11.lastread, InputLength);
pCodec->s11.lastread+=InputLength;
InputLength=0;
status = ippsResamplePolyphaseFixed_16s(pCodec->s11.ppState[0],pCodec->s11.p11,
(pCodec->s11.lastread-pCodec->s11.history-(int)pCodec->s11.time),
(short*)pTmp,0.98f,&pCodec->s11.time,&InputLength);
if(status==ippStsNoErr){
ippsMove_16s(pCodec->s11.p11+(int)pCodec->s11.time-pCodec->s11.history,
pCodec->s11.p11,(pCodec->s11.lastread+pCodec->s11.history-(int)pCodec->s11.time));
pCodec->s11.lastread-=(int)pCodec->s11.time-pCodec->s11.history;
pCodec->s11.time-=(int)pCodec->s11.time-pCodec->s11.history;
}
if(StreamEnd){
l = 0;
status = ippsResamplePolyphaseFixed_16s(pCodec->s11.ppState[0],pCodec->s11.p11,
(pCodec->s11.lastread-pCodec->s11.history-(int)pCodec->s11.time),
(short*)pTmp+InputLength,0.98f,&pCodec->s11.time,&l);
InputLength+=l;
}
}
if(InputLength>0)
FrameCounter = PrepareForCalculation(pCodec,pTmp,InputLength);
if(FrameCounter){
/* Start process wavebuffer */
Count = 0;
tc=1+pCodec->noise.Cur_TPrpocess; FrameCounter += pCodec->noise.Cur_TPrpocess;
for( ; tc < FrameCounter; tc++,pCodec->noise.Cur_TPrpocess++,pCodec->NumberFrame++){
if(pCodec->freq == r16KHz){
ippsLowHighFilter_Aurora_16s_Sfs(pCodec->noise.pBStateBig+480,
pBState_1+FRAMESHIFT*3, pCodec->noise.s16.dataHP+480, 160, pCodec->FirCoeff16sAlign, FILTERLENGTH,15);
ippsMove_16s(pCodec->noise.pBStateBig+160,pCodec->noise.pBStateBig,FILTERLENGTH+480);
}
else{
ippsCopy_16s(pCodec->noise.pBStateBig+append+pCodec->noise.start,
pBState_1+pCodec->noise.start,pCodec->noise.end);
}
/* VAD for noise estimation (VADNest) */
flagVAD = VADNest(&pCodec->noise.vad,tc,pBState_1+FRAMESHIFT);
/* perfom noise reduction */
DoNoiseReduction(pCodec,pCodec->noise.pBStateBuf,tc,pFFTOut,pNoiseDst,&tcur,pMelBank,pDen,flagVAD);
ippsVADDecision_Aurora_16s(pMelBank,pDen,pCodec->noise.vad.nbSpeechFrame,vad,pCodec->pVadMem);
if(tcur){
CeptstrumCalculate(pCodec,pNoiseDst,tc);
ippsCopy_16s(pCodec->pFeatBuffer,pCodec->pFeatCyclicBuf+(pCodec->numCepCoeff+1)*6,pCodec->numCepCoeff+1);
if( vad[0]!=IPP_PREPARE ){
pCodec->pFeatCyclicBuf[pCodec->numCepCoeff]=(pCodec->pFeatCyclicBuf[pCodec->numCepCoeff]*
(Ipp32s)pCodec->weight_logE)>>11;
pCodec->pFeatCyclicBuf[pCodec->numCepCoeff-1]=(pCodec->pFeatCyclicBuf[pCodec->numCepCoeff-1]*
(Ipp32s)pCodec->weight_c0)>>11;
for(i=0;i<NUM_CODEBOOK;i++){
ippsVQ_16s(pCodec->pFeatCyclicBuf+i*2, 2,&j,1,(const IppsCdbkState_16s *)pCodec->ppCdbkState[i]);
pCodec->pIndexVQBuffer[i]=j;
}
ippsCopy_8u(pCodec->pIndexVQBuffer,pOutputBuffer+Count*(NUM_CODEBOOK+1),NUM_CODEBOOK);
if(vad[0]==IPP_VOICE)
pOutputBuffer[Count*(NUM_CODEBOOK+1)+NUM_CODEBOOK] = 1;
else if(vad[0]==IPP_UNVOICE)
pOutputBuffer[Count*(NUM_CODEBOOK+1)+NUM_CODEBOOK] = 0;
Count++;
}
ippsMove_16s(pCodec->pFeatCyclicBuf+(pCodec->numCepCoeff+1),pCodec->pFeatCyclicBuf,(pCodec->numCepCoeff+1)*6);
}
/* Shift buffers */
ippsMove_16s(pCodec->noise.pBStateBuf+FRAMESHIFT,pCodec->noise.pBStateBuf,11*FRAMESHIFT);
/* Forming first buffer */
if(pCodec->noise.tail >= pCodec->FrameShift){
CopyBuffers(pCodec,pTmp+InputLength-pCodec->noise.tail,3*pCodec->FrameShift,pCodec->FrameShift);
pCodec->noise.tail -= pCodec->FrameShift;
}
if(pCodec->freq == r16KHz){
ippsMove_16s(pCodec->noise.s16.dataHP+80,pCodec->noise.s16.dataHP,480);
ippsMove_16s((Ipp16s*)(pCodec->noise.pFFT+FFTSIZE),(Ipp16s*)pCodec->noise.pFFT,FFTSIZE<<3);
}
}
if(pCodec->noise.tail>0 && pCodec->noise.tail<pCodec->FrameShift){
CopyBuffers(pCodec,pTmp+InputLength-pCodec->noise.tail,3*pCodec->FrameShift,pCodec->noise.tail);
}
}
if (StreamEnd){
while(1){
ippsVADFlush_Aurora_16s(vad,pCodec->pVadMem);
if(vad[0]==IPP_PREPARE)break;
pCodec->pFeatCyclicBuf[pCodec->numCepCoeff]=(pCodec->pFeatCyclicBuf[pCodec->numCepCoeff]*
(Ipp32s)pCodec->weight_logE)>>11;
pCodec->pFeatCyclicBuf[pCodec->numCepCoeff-1]=(pCodec->pFeatCyclicBuf[pCodec->numCepCoeff-1]*
(Ipp32s)pCodec->weight_c0)>>11;
for(i=0;i<NUM_CODEBOOK;i++){
ippsVQ_16s(pCodec->pFeatCyclicBuf+i*2, 2,&j,1,(const IppsCdbkState_16s *)pCodec->ppCdbkState[i]);
pCodec->pIndexVQBuffer[i]=j;
}
ippsCopy_8u(pCodec->pIndexVQBuffer,pOutputBuffer+Count*(NUM_CODEBOOK+1),NUM_CODEBOOK);
if(vad[0]==IPP_VOICE)
pOutputBuffer[Count*(NUM_CODEBOOK+1)+NUM_CODEBOOK] = 1;
else if(vad[0]==IPP_UNVOICE)
pOutputBuffer[Count*(NUM_CODEBOOK+1)+NUM_CODEBOOK] = 0;
ippsMove_16s(pCodec->pFeatCyclicBuf+(pCodec->numCepCoeff+1),pCodec->pFeatCyclicBuf,(pCodec->numCepCoeff+1)*6);
Count++;
}
ResetAuroraEncoder(pCodec);
}
if(pCodec->freq == r11KHz){
ippsFree(pTmp);
}
return Count;
}
int CreateMultyFrame(AuroraEncoder *pCodec){
int crc,MultyFrameCounter=0;
int idx = (pCodec->iCountFrame/4)*23+6;
if (pCodec->iCountFrame==0){
pCodec->pFrame->pos=6;
ippsZero_8u(pCodec->pFrame->pFrameBuffer,NUM_MULTI_BYTE);
}
if(pCodec->iCountFrame%4==0){
pCodec->pFrame->pFrameBuffer[idx] = (0x3f & pCodec->pIndexVQBuffer[0]);
pCodec->pFrame->pFrameBuffer[idx] |= (0xc0 & (pCodec->pIndexVQBuffer[1] << 6));
pCodec->pFrame->pFrameBuffer[idx+1] = (0x0f & (pCodec->pIndexVQBuffer[1] >> 2));
pCodec->pFrame->pFrameBuffer[idx+1]|= (0xf0 & (pCodec->pIndexVQBuffer[2] << 4));
pCodec->pFrame->pFrameBuffer[idx+2] = (0x03 & (pCodec->pIndexVQBuffer[2] >> 4));
pCodec->pFrame->pFrameBuffer[idx+2]|= (0xfc & (pCodec->pIndexVQBuffer[3] << 2));
pCodec->pFrame->pFrameBuffer[idx+3] = (0x3f & pCodec->pIndexVQBuffer[4]);
pCodec->pFrame->pFrameBuffer[idx+3]|= (0xc0 & (pCodec->pIndexVQBuffer[5] << 6));
pCodec->pFrame->pFrameBuffer[idx+4] = (0x0f & (pCodec->pIndexVQBuffer[5] >> 2));
pCodec->pFrame->pFrameBuffer[idx+4]|= (0xf0 & (pCodec->pIndexVQBuffer[6] << 4));
pCodec->pFrame->pFrameBuffer[idx+5] = (0x0f & (pCodec->pIndexVQBuffer[6] >> 4));
pCodec->pFrame->pos += 5;
crc = encodeCRC(&pCodec->pFrame->pFrameBuffer[idx]);
pCodec->pFrame->pFrameBuffer[idx+11] = (0x0f & crc);
}
if(pCodec->iCountFrame%4==1){
pCodec->pFrame->pFrameBuffer[idx+5]|= (0xf0 & (pCodec->pIndexVQBuffer[0] << 4));
pCodec->pFrame->pFrameBuffer[idx+6] = (0x03 & (pCodec->pIndexVQBuffer[0] >> 4));
pCodec->pFrame->pFrameBuffer[idx+6]|= (0xfc & (pCodec->pIndexVQBuffer[1] << 2));
pCodec->pFrame->pFrameBuffer[idx+7] = (0x3f & pCodec->pIndexVQBuffer[2]);
pCodec->pFrame->pFrameBuffer[idx+7]|= (0xc0 & (pCodec->pIndexVQBuffer[3] << 6));
pCodec->pFrame->pFrameBuffer[idx+8] = (0x0f & (pCodec->pIndexVQBuffer[3] >> 2));
pCodec->pFrame->pFrameBuffer[idx+8]|= (0xf0 & (pCodec->pIndexVQBuffer[4] << 4));
pCodec->pFrame->pFrameBuffer[idx+9] = (0x03 & (pCodec->pIndexVQBuffer[4] >> 4));
pCodec->pFrame->pFrameBuffer[idx+9]|= (0xfc & (pCodec->pIndexVQBuffer[5] << 2));
pCodec->pFrame->pFrameBuffer[idx+10]= (0xff & pCodec->pIndexVQBuffer[6]);
pCodec->pFrame->pos +=6;
crc = encodeCRC(&pCodec->pFrame->pFrameBuffer[idx]);
pCodec->pFrame->pFrameBuffer[idx+11] = (0x0f & crc);
}
if (pCodec->iCountFrame%4==2){
pCodec->pFrame->pFrameBuffer[idx+11]|= (0xf0 & (pCodec->pIndexVQBuffer[0] << 4));
pCodec->pFrame->pFrameBuffer[idx+12] = (0x03 & (pCodec->pIndexVQBuffer[0] >> 4));
pCodec->pFrame->pFrameBuffer[idx+12]|= (0xfc & (pCodec->pIndexVQBuffer[1] << 2));
pCodec->pFrame->pFrameBuffer[idx+13] = (0x3f & pCodec->pIndexVQBuffer[2]);
pCodec->pFrame->pFrameBuffer[idx+13]|= (0xc0 & (pCodec->pIndexVQBuffer[3] << 6));
pCodec->pFrame->pFrameBuffer[idx+14] = (0x0f & (pCodec->pIndexVQBuffer[3] >> 2));
pCodec->pFrame->pFrameBuffer[idx+14]|= (0xf0 & (pCodec->pIndexVQBuffer[4] << 4));
pCodec->pFrame->pFrameBuffer[idx+15] = (0x03 & (pCodec->pIndexVQBuffer[4] >> 4));
pCodec->pFrame->pFrameBuffer[idx+15]|= (0xfc & (pCodec->pIndexVQBuffer[5] << 2));
pCodec->pFrame->pFrameBuffer[idx+16] = (0xff & pCodec->pIndexVQBuffer[6]);
pCodec->pFrame->pCRCBuffer[0] = (0x3f & pCodec->pIndexVQBuffer[0]);
pCodec->pFrame->pCRCBuffer[0]|= (0xc0 & (pCodec->pIndexVQBuffer[1] << 6));
pCodec->pFrame->pCRCBuffer[1] = (0x0f & (pCodec->pIndexVQBuffer[1] >> 2));
pCodec->pFrame->pCRCBuffer[1]|= (0xf0 & (pCodec->pIndexVQBuffer[2] << 4));
pCodec->pFrame->pCRCBuffer[2] = (0x03 & (pCodec->pIndexVQBuffer[2] >> 4));
pCodec->pFrame->pCRCBuffer[2]|= (0xfc & (pCodec->pIndexVQBuffer[3] << 2));
pCodec->pFrame->pCRCBuffer[3] = (0x3f & pCodec->pIndexVQBuffer[4]);
pCodec->pFrame->pCRCBuffer[3]|= (0xc0 & (pCodec->pIndexVQBuffer[5] << 6));
pCodec->pFrame->pCRCBuffer[4] = (0x0f & (pCodec->pIndexVQB⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -