static Ipp32s sbrCalcAliasDegree(Ipp32f *ref, Ipp32f *deg, Ipp32s k0)
{
Ipp32s sign = 0;
Ipp32s k;
ippsZero_32f(deg, k0);
ref[0] = 0.0f;
deg[1] = 0.0f;
for (k = 2; k < k0; k++) {
if ((k % 2 == 0) && (ref[k] < 0.0f)) {
sign = 1;
} else if ((k % 2 == 1) && (ref[k] > 0.0f)) {
sign = -1;
} else {
sign = 0;
continue;
}
if (sign * ref[k - 1] < 0) {
deg[k] = 1.0f;
if (sign * ref[k - 2] > 0.0f) {
deg[k - 1] = 1 - ref[k - 1] * ref[k - 1];
}
} else {
if (sign * ref[k - 2] > 0.0f) {
deg[k] = 1 - ref[k - 1] * ref[k - 1];
}
}
}
return 0; // OK
}
static USC_Status Reinit_VAD_G729FP(const USC_FilterModes *modes, USC_Handle handle )
{
G729_Handle_Header *g729_header;
VADmemory *VadObj;
Ipp32s i;
Ipp32s fltsize;
void* pBuf;
Ipp8s* oldMemBuff;
USC_CHECK_PTR(modes);
USC_CHECK_HANDLE(handle);
USC_BADARG(modes->vad > 1, USC_UnsupportedVADType);
USC_BADARG(modes->vad < 0, USC_UnsupportedVADType);
g729_header = (G729_Handle_Header*)handle;
g729_header->vad = modes->vad;
VadObj = (VADmemory *)((Ipp8s*)handle + sizeof(G729_Handle_Header));
if(NULL==VadObj)
return USC_BadArgument;
oldMemBuff = VadObj->Mem.base; /* if Reinit */
ippsZero_32f(VadObj->OldSpeechBuffer, SPEECH_BUFF_LEN);
ippsZero_16s((Ipp16s*)VadObj,sizeof(VADmemory)>>1) ;
VadObj->objPrm.objSize = vadObjSize();
VadObj->objPrm.mode = g729_header->vad;
VadObj->objPrm.key = ENC_KEY;
pBuf = (Ipp8s*)VadObj + sizeof(VADmemory);
ippsIIRGetStateSize_32f(2,&fltsize);
VadObj = (VADmemory *)((Ipp8s*)pBuf + fltsize);
VADGetSize(&fltsize);
/* Static vectors to zero */
for(i=0; i<MOVING_AVER_ORDER; i++)
VadObj->sFrameCounter = 0;
/* For G.729B */
/* Initialize VAD/DTX parameters */
//if(mode == G729Encode_VAD_Enabled) {
VadObj->prevVADDec = 1;
VadObj->prevPrevVADDec = 1;
VADInit((Ipp8s*)VadObj);
//}
if(oldMemBuff==NULL) return USC_BadArgument;
if(VadObj==NULL) return USC_BadArgument;
if(NULL==VadObj || NULL==oldMemBuff)
return USC_BadArgument;
VadObj->Mem.base = oldMemBuff;
VadObj->Mem.CurPtr = VadObj->Mem.base;
VadObj->Mem.VecPtr = (Ipp32s *)(VadObj->Mem.base+VAD_G729FP_LOCAL_MEMORY_SIZE);
return USC_NoError;
}
void IQSSBDemodulator::setFilter(Ipp64f lowFreq, Ipp64f highFreq)
{
_lowFreq = lowFreq;
_highFreq = highFreq;
ippsZero_32f(_fir_taps_re, NFFT);
ippsZero_32f(_fir_taps_im, NFFT);
Ipp64f* fir_tmp = ippsMalloc_64f(_taps_len);
ippsFIRGenBandpass_64f(_lowFreq, _highFreq, fir_tmp, _taps_len,
ippWinHamming, ippTrue);
ippsConvert_64f32f(fir_tmp, _fir_taps_re, _taps_len);
ippsFree(fir_tmp);
ippsFFTFwd_CToC_32f_I(_fir_taps_re, _fir_taps_im,
_fft_specs, _fft_buf);
ippsCartToPolar_32f(_fir_taps_re, _fir_taps_im,
_fir_taps_m, _fir_taps_p,
NFFT);
}
static Ipp32s
sbrencTotalDetectionSinEst(Ipp32f bufT[][64],
Ipp32f bufDiff[][64],
Ipp32s nBand,
Ipp32s* pFreqTab,
Ipp32f bufSfmOrig[][64],
Ipp32f bufSfmSBR[][64],
Ipp32s bufDetection[][64],
Ipp32s* prev_bs_add_harmonic,
sSBRGuideData* pGuideState,
Ipp32s noEstPerFrame,
Ipp32s totNoEst,
Ipp32s newDetectionAllowed,
Ipp32s* bs_add_harmonic)
{
Ipp32s est = 0;
Ipp32s start = (newDetectionAllowed) ? noEstPerFrame : 0;
Ipp32s band;
ippsZero_32s(bs_add_harmonic, nBand);
/* ******************************
* up-date buffers
* ****************************** */
if(newDetectionAllowed){
ippsCopy_32f(pGuideState[0].bufGuideDiff, pGuideState[noEstPerFrame].bufGuideDiff, nBand);
ippsCopy_32f(pGuideState[0].bufGuideOrig, pGuideState[noEstPerFrame].bufGuideOrig, nBand);
ippsZero_32s(pGuideState[noEstPerFrame-1].bufGuideDetect, nBand);
}
for(est = start; est < totNoEst; est++){
if(est > 0){
ippsCopy_32s(bufDetection[est-1], pGuideState[est].bufGuideDetect, nBand);
}
ippsZero_32s(bufDetection[est], nBand);
band = (est < totNoEst-1) ? est+1 : est;
ippsZero_32f(pGuideState[band].bufGuideDiff, nBand);
ippsZero_32f(pGuideState[band].bufGuideOrig, nBand);
ippsZero_32s(pGuideState[band].bufGuideDetect, nBand);
/* ******************************
* main detection algorithm
* ****************************** */
sbrencDetectionSinEst(bufT[est],
bufDiff[est],
bufDetection[est],
pFreqTab,
nBand,
bufSfmOrig[est],
bufSfmSBR[est],
pGuideState[est],
pGuideState[band]);
}
/* *******************************************
* additional step: because there is transient
* ******************************************* */
if(newDetectionAllowed){
sbrencTransientCorrection(bufT,
bufDetection,
pFreqTab,
nBand,
pGuideState[noEstPerFrame],
start,
totNoEst);
}
/* *****************************************************
* finally decision: merged
* ***************************************************** */
for(band = 0; band< nBand; band++){
for(est = start; est < totNoEst; est++){
bs_add_harmonic[band] = bs_add_harmonic[band] || bufDetection[est][band];
}
}
/* *****************************************************
* detections that were not present before are removed
* ***************************************************** */
if(!newDetectionAllowed){
for(band=0; band < nBand; band++){
if(bs_add_harmonic[band] - prev_bs_add_harmonic[band] > 0) {
bs_add_harmonic[band] = 0;
}
}
}
return 0;//OK
}
static Ipp32s
sbrencCalcInDataSinEst(Ipp32f bufT[][64],
Ipp32f bufDiff[][64],
Ipp32f bufSfmOrig[][64],
Ipp32f bufSfmSBR[][64],
Ipp32s* indxMapTab,
Ipp32s* pFreqTab,
Ipp32s nBand)
{
#if !defined(ANDROID)
IPP_ALIGNED_ARRAY(32, Ipp32f, tmpBuf, 64);
#else
static IPP_ALIGNED_ARRAY(32, Ipp32f, tmpBuf, 64);
#endif
Ipp32s est, k, idx;
// Ipp32s p;
Ipp32s i, iStart, iEnd;
/* up-date buffer */
for(est = 0 ; est < 2; est++){
ippsCopy_32f(bufDiff[est + 2], bufDiff[est], 64);
ippsCopy_32f(bufSfmOrig[est + 2], bufSfmOrig[est], 64);
ippsCopy_32f(bufSfmSBR[est + 2], bufSfmSBR[est], 64);
}
/* AYA log */
#ifdef SBR_NEED_LOG
fprintf(logFile, "\nSinesEstimation\n");
fprintf(logFile, "\nDiff origSfm sbrSfm\n");
#endif
/* detection input data */
for(est = 2; est < 4; est++){
/* AYA log */
#ifdef SBR_NEED_LOG
fprintf(logFile, "band = %i\n", est);
#endif
sbrencDiffEst( bufT[ est ], bufDiff[ est ], indxMapTab, pFreqTab, nBand );
sbrencSfmEst( bufT[ est ], bufSfmOrig[ est ], pFreqTab, nBand );
ippsZero_32f(tmpBuf, 64);
for(k = 0; k < nBand; k++){
iStart = pFreqTab[k];
iEnd = pFreqTab[k+1];
for(i=iStart; i<iEnd; i++){
idx = indxMapTab[i];
if ( idx != EMPTY_MAPPING){
tmpBuf[i] = bufT[est][ idx ];
}
}
}
sbrencSfmEst( tmpBuf, bufSfmSBR[ est ], pFreqTab, nBand );
/* AYA */
#ifdef SBR_NEED_LOG
for(p=0; p<nBand; p++){
fprintf(logFile, "%15.10f %15.10f %15.10f\n", bufDiff[ est ][p], bufSfmOrig[ est ][p], bufSfmSBR[ est ][p]);
}
#endif
}
return 0;//OK
}
void aac_MinMaxSF(sEnc_individual_channel_stream* pStream,
Ipp32f* mdct_scaled,
Ipp32s* startSF,
Ipp16s* scalefac,
Ipp16s* maxXQuant,
Ipp32s* minSf,
Ipp32s* maxSf,
Ipp32s maxSfDelta)
{
Ipp32s *sfb_offset = pStream->sfb_offset;
Ipp32s *sfb_width = pStream->sfb_width;
Ipp32s numSfb = pStream->num_window_groups * pStream->max_sfb;
int sfb, update;
minSf[0] = 100000;
maxSf[0] = -100000;
for (sfb = 0; sfb < numSfb; sfb++) {
if (maxXQuant[sfb] != 0) {
if (scalefac[sfb] > maxSf[0]) maxSf[0] = scalefac[sfb];
if (scalefac[sfb] < minSf[0]) minSf[0] = scalefac[sfb];
} else {
ippsZero_32f(mdct_scaled + sfb_offset[sfb], sfb_width[sfb]);
}
}
update = 0;
if ((maxSf[0] - minSf[0]) > maxSfDelta) {
for (sfb = 0; sfb < numSfb; sfb++) {
if (maxXQuant[sfb] != 0) {
/* very big difference */
if ((minSf[0] + maxSfDelta) < startSF[sfb]) {
minSf[0] = startSF[sfb] - maxSfDelta;
update = 1;
}
}
}
}
if (update == 1) {
for (sfb = 0; sfb < numSfb; sfb++) {
/* re quantization */
if (scalefac[sfb] < minSf[0]) {
#if !defined(ANDROID)
IPP_ALIGNED_ARRAY(32, Ipp32f, mdct_rqnt, N_LONG/2);
IPP_ALIGNED_ARRAY(32, Ipp16s, x_quant_unsigned, N_LONG/2);
#else
static IPP_ALIGNED_ARRAY(32, Ipp32f, mdct_rqnt, N_LONG/2);
static IPP_ALIGNED_ARRAY(32, Ipp16s, x_quant_unsigned, N_LONG/2);
#endif
Ipp32f sf = (Ipp32f)scalefac_pow[minSf[0] + SF_OFFSET];
Ipp32f temp = (Ipp32f)(MAGIC_NUMBER - 0.5f)/sf;
ippsAddC_32f(mdct_scaled + sfb_offset[sfb], temp, mdct_rqnt, sfb_width[sfb]);
ippsMulC_Low_32f16s(mdct_rqnt, sf, x_quant_unsigned, sfb_width[sfb]);
ippsMax_16s(x_quant_unsigned, sfb_width[sfb], maxXQuant + sfb);
scalefac[sfb] = (Ipp16s)minSf[0];
}
}
}
if ((maxSf[0] - minSf[0]) > maxSfDelta) {
for (sfb = 0; sfb < numSfb; sfb++) {
if (maxXQuant[sfb] != 0) {
if (scalefac[sfb] > minSf[0] + maxSfDelta)
scalefac[sfb] = (Ipp16s)(minSf[0] + maxSfDelta);
}
}
maxSf[0] = minSf[0] + maxSfDelta;
}
}
static Ipp32s sbrHFGenerator(
/*
* in data
*/
Ipp32f **XBuf,
Ipp32f *vbwArray,
Ipp32f *alpha_0,
Ipp32f *alpha_1,
sSBRDecComState* pSbr, Ipp32s ch,
Ipp32f *deg, Ipp32f *degPatched,
/*
* out data
*/
Ipp32f **YBuf, Ipp32s mode)
{
Ipp32s i, x, q, k_0, k, p, g, l;
Ipp32s l_start = RATE * pSbr->sbrFIState[ch].bordersEnv[0];
Ipp32s l_end = RATE * pSbr->sbrFIState[ch].bordersEnv[pSbr->sbrFIState[ch].nEnv];
Ipp32f accYRe, accYIm;
Ipp32f bwArr, bwArr2;
Ipp32f cA0Re, cA0Im, cA1Re, cA1Im;
Ipp32fc** pXcmp = (Ipp32fc**)XBuf;
Ipp32fc** pYcmp = (Ipp32fc**)YBuf;
Ipp32f** pXre = XBuf;
Ipp32f** pYre = YBuf;
sSBRFeqTabsState* pFTState = &(pSbr->sbrFreqTabsState);
//------------------------
Ipp32fc* pA0cmp = (Ipp32fc*)alpha_0 ;
Ipp32fc* pA1cmp = (Ipp32fc*)alpha_1 ;
Ipp32f* pA0re = alpha_0 ;
Ipp32f* pA1re = alpha_1 ;
/* CODE */
if (mode == HEAAC_LP_MODE) {
ippsZero_32f(degPatched, MAX_NUM_ENV_VAL);
ippsCopy_32f(deg, degPatched, MAX_NUM_ENV_VAL);
}
for (i = 0; i < pFTState->numPatches; i++) {
k_0 = 0;
for (q = 0; q < i; q++) {
k_0 += pFTState->patchNumSubbandsTab[q];
}
k_0 += pSbr->kx;
for (x = 0; x < pFTState->patchNumSubbandsTab[i]; x++) {
k = k_0 + x;
p = pFTState->patchStartSubbandTab[i] + x;
for (g = 0; g < pFTState->nNoiseBand; g++) {
if ((k >= pFTState->fNoiseBandTab[g]) && (k < pFTState->fNoiseBandTab[g + 1]))
break;
}
if (mode == HEAAC_LP_MODE) {
if (x == 0)
degPatched[k] = 0.0f;
else
degPatched[k] = deg[p];
}
bwArr = vbwArray[g];
/******************************************
* code may be optimized because:
* if ( 0 == bwArr )
* pY[ l ][ k ] = pX[ l ][ p ] ONLY!!!
* else
* ippsPredictCoef_SBR_C_32f_D2L(...)
* and code is written below,
* but it is impossible because
* ipp function works only k = [0, k0)
*
******************************************/
bwArr2 = bwArr * bwArr;
if (mode == HEAAC_HQ_MODE) {
cA0Re = bwArr * pA0cmp[p].re ;
cA0Im = bwArr * pA0cmp[p].im ;
cA1Re = bwArr2 * pA1cmp[p].re;
cA1Im = bwArr2 * pA1cmp[p].im;
for (l = l_start; l < l_end; l++) {
/* bw * Alpha0 * XLow[l-1] */
accYRe = pXcmp[l - 1 + 0][p].re * cA0Re -
pXcmp[l - 1 + 0][p].im * cA0Im ;
accYIm = pXcmp[l - 1 + 0][p].re * cA0Im +
pXcmp[l - 1 + 0][p].im * cA0Re;
/* bw^2 * Alpha1 * XLow[l-2] */
accYRe += pXcmp[l - 2 + 0][p].re * cA1Re -
pXcmp[l - 2 + 0][p].im * cA1Im;
accYIm += pXcmp[l - 2 + 0][p].re * cA1Im +
pXcmp[l - 2 + 0][p].im * cA1Re;
pYcmp[l + 0][k].re = pXcmp[l - 0 + 0][p].re + accYRe;
pYcmp[l + 0][k].im = pXcmp[l - 0 + 0][p].im + accYIm;
}// end for
} else {// if (mode == HEAAC_HQ_MODE)
//------------
cA0Re = bwArr * pA0re[p];
cA1Re = bwArr2 * pA1re[p];
for (l = l_start; l < l_end; l++) {
/* bw * Alpha0 * XLow[l-1] */
accYRe = pXre[l - 1 + 0][p] * cA0Re;
/* bw^2 * Alpha1 * XLow[l-2] */
accYRe += pXre[l - 2 + 0][p] * cA1Re;
pYre[l + 0][k] = pXre[l - 0 + 0][p] + accYRe;
}
//------------
}
}
}
if (mode == HEAAC_LP_MODE) {
k_0 = 0;
for (q = 0; q < pFTState->numPatches; q++)
k_0 += pFTState->patchNumSubbandsTab[q];
for (k = pSbr->kx + k_0; k < MAX_NUM_ENV_VAL; k++)
degPatched[k] = 0;
}
return 0; // OK
}
static USC_Status Init_VAD_G729FP(const USC_FilterOption *options, const USC_MemBank *pBanks, USC_Handle *handle)
{
G729_Handle_Header *g729_header;
VADmemory *VadObj;
Ipp32s i;
Ipp32s fltsize;
void* pBuf;
USC_CHECK_PTR(options);
USC_CHECK_PTR(pBanks);
USC_CHECK_PTR(pBanks[0].pMem);
USC_BADARG(pBanks[0].nbytes<=0, USC_NotInitialized);
USC_CHECK_PTR(pBanks[1].pMem);
USC_BADARG(pBanks[1].nbytes<=0, USC_NotInitialized);
USC_CHECK_HANDLE(handle);
USC_BADARG(options->modes.vad > 1, USC_UnsupportedVADType);
USC_BADARG(options->modes.vad < 0, USC_UnsupportedVADType);
USC_BADARG(options->pcmType.sample_frequency < 1, USC_UnsupportedPCMType);
USC_BADARG(options->pcmType.bitPerSample < 1, USC_UnsupportedPCMType);
*handle = (USC_Handle*)pBanks[0].pMem;
g729_header = (G729_Handle_Header*)*handle;
g729_header->vad = options->modes.vad;
VadObj = (VADmemory *)((Ipp8s*)*handle + sizeof(G729_Handle_Header));
ippsZero_16s((Ipp16s*)VadObj,sizeof(VADmemory)>>1) ;
if(pBanks[1].pMem==NULL) return USC_BadArgument;
if(VadObj==NULL) return USC_BadArgument;
if(NULL==VadObj || NULL==pBanks[1].pMem)
return USC_BadArgument;
VadObj->Mem.base = pBanks[1].pMem;
VadObj->Mem.CurPtr = VadObj->Mem.base;
VadObj->Mem.VecPtr = (Ipp32s *)(VadObj->Mem.base+VAD_G729FP_LOCAL_MEMORY_SIZE);
if(NULL==VadObj)
return USC_BadArgument;
ippsZero_32f(VadObj->OldSpeechBuffer, SPEECH_BUFF_LEN);
VadObj->objPrm.objSize = vadObjSize();
VadObj->objPrm.mode = g729_header->vad;
VadObj->objPrm.key = ENC_KEY;
pBuf = (Ipp8s*)VadObj + sizeof(VADmemory);
ippsIIRGetStateSize_32f(2,&fltsize);
VadObj = (VADmemory *)((Ipp8s*)pBuf + fltsize);
VADGetSize(&fltsize);
/* Static vectors to zero */
for(i=0; i<MOVING_AVER_ORDER; i++)
VadObj->sFrameCounter = 0;
/* For G.729B */
/* Initialize VAD/DTX parameters */
//if(mode == G729Encode_VAD_Enabled) {
VadObj->prevVADDec = 1;
VadObj->prevPrevVADDec = 1;
VADInit((Ipp8s*)VadObj);
//}
if(pBanks[1].pMem==NULL) return USC_BadArgument;
if(VadObj==NULL) return USC_BadArgument;
if(NULL==VadObj || NULL==pBanks[1].pMem)
return USC_BadArgument;
VadObj->Mem.base = pBanks[1].pMem;
VadObj->Mem.CurPtr = VadObj->Mem.base;
VadObj->Mem.VecPtr = (Ipp32s *)(VadObj->Mem.base+VAD_G729FP_LOCAL_MEMORY_SIZE);
return USC_NoError;
}
void IQSSBDemodulator::process_block(Ipp32f* iq_block, Ipp32f* out_block)
{
static bool flip=false;
// Deinterleave to real and imaginary (I and Q) buffers
ippsDeinterleave_32f(iq_block, 2, BLKSIZE, _iq);
ippsZero_32f(_in_re+BLKSIZE, NFFT-BLKSIZE);
ippsZero_32f(_in_im+BLKSIZE, NFFT-BLKSIZE);
// _in_re now contains the real/I part and
// _in_im now contains the imaginary/Q part
ippsFFTFwd_CToC_32f_I(_in_re, _in_im,
_fft_specs, _fft_buf);
ippsCartToPolar_32f(_in_re, _in_im,
_in_m, _in_p,
NFFT);
// layout of frequency bins is
// NFFT/2 to NFFT-1 and then continues from 0 to NFFT/2-1
// shift desired part to 0Hz
int lo = _lo*NFFT;
circshift(_in_m, NFFT, lo);
circshift(_in_p, NFFT, lo);
// zero out undesired sideband
if(_sideband == USB)
{
// zero out LSB, that is NFFT/2 to NFFT-1
ippsZero_32f(_in_m+NFFT/2, NFFT/2);
ippsZero_32f(_in_p+NFFT/2, NFFT/2);
}
else // _sideband must be LSB
{
// zero out USB, that is 0 to NFFT/2-1
ippsZero_32f(_in_m, NFFT/2);
ippsZero_32f(_in_p, NFFT/2);
}
// filter the passband
ippsMul_32f_I(_fir_taps_m, _in_m, NFFT);
ippsAdd_32f_I(_fir_taps_p, _in_p, NFFT);
// return to time domain
ippsPolarToCart_32f(_in_m, _in_p,
_in_re, _in_im,
NFFT);
ippsFFTInv_CToC_32f_I(_in_re, _in_im,
_fft_specs, _fft_buf);
// do overlap/add
//
// 1) add the residual from last round
ippsAdd_32f_I(_residual_re, _in_re, _residual_length);
ippsAdd_32f_I(_residual_im, _in_im, _residual_length);
// 2) Store the new residual
if(flip)
{
ippsMulC_32f_I(-1.0, _in_re, NFFT);
ippsMulC_32f_I(-1.0, _in_im, NFFT);
flip=!flip;
}
ippsCopy_32f(_in_re+BLKSIZE, _residual_re, _residual_length);
ippsCopy_32f(_in_im+BLKSIZE, _residual_im, _residual_length);
// agc
agc(_in_re, BLKSIZE);
// deliver the result
ippsCopy_32f(_in_re, out_block, BLKSIZE);
}