void CBlock_ScaleSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo)
{
int band;
int window;
const SHORT * RESTRICT pSfbScale = pAacDecoderChannelInfo->pDynData->aSfbScale;
SHORT * RESTRICT pSpecScale = pAacDecoderChannelInfo->specScale;
int groupwin,group;
const SHORT * RESTRICT BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo);
SPECTRAL_PTR RESTRICT pSpectralCoefficient = pAacDecoderChannelInfo->pSpectralCoefficient;
FDKmemclear(pSpecScale, 8*sizeof(SHORT));
int max_band = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo);
for (window=0, group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++)
{
for (groupwin=0; groupwin < GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); groupwin++, window++)
{
int SpecScale_window = pSpecScale[window];
FIXP_DBL *pSpectrum = SPEC(pSpectralCoefficient, window, pAacDecoderChannelInfo->granuleLength);
/* find scaling for current window */
for (band=0; band < max_band; band++)
{
SpecScale_window = fMax(SpecScale_window, (int)pSfbScale[window*16+band]);
}
if (pAacDecoderChannelInfo->pDynData->TnsData.Active) {
SpecScale_window += TNS_SCALE;
}
/* store scaling of current window */
pSpecScale[window] = SpecScale_window;
#ifdef FUNCTION_CBlock_ScaleSpectralData_func1
CBlock_ScaleSpectralData_func1(pSpectrum, max_band, BandOffsets, SpecScale_window, pSfbScale, window);
#else /* FUNCTION_CBlock_ScaleSpectralData_func1 */
for (band=0; band < max_band; band++)
{
int scale = SpecScale_window - pSfbScale[window*16+band];
if (scale)
{
/* following relation can be used for optimizations: (BandOffsets[i]%4) == 0 for all i */
int max_index = BandOffsets[band+1];
for (int index = BandOffsets[band]; index < max_index; index++)
{
pSpectrum[index] >>= scale;
}
}
}
#endif /* FUNCTION_CBlock_ScaleSpectralData_func1 */
}
}
}
/*!
\brief Decode channel pair element
The function decodes a channel pair element.
\return none
*/
void CChannelElement_Decode( CAacDecoderChannelInfo *pAacDecoderChannelInfo[2], /*!< pointer to aac decoder channel info */
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[2],
SamplingRateInfo *pSamplingRateInfo,
UINT flags,
int el_channels)
{
int ch, maybe_jstereo = 0;
maybe_jstereo = (el_channels > 1);
for (ch = 0; ch < el_channels; ch++) {
if ( pAacDecoderChannelInfo[ch]->renderMode == AACDEC_RENDER_IMDCT
|| pAacDecoderChannelInfo[ch]->renderMode == AACDEC_RENDER_ELDFB )
{
CBlock_InverseQuantizeSpectralData(pAacDecoderChannelInfo[ch], pSamplingRateInfo);
}
}
if (maybe_jstereo) {
/* apply ms */
if (pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow) {
int maxSfBandsL = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo[L]->icsInfo);
int maxSfBandsR = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo[R]->icsInfo);
if (pAacDecoderChannelInfo[L]->data.aac.PnsData.PnsActive || pAacDecoderChannelInfo[R]->data.aac.PnsData.PnsActive) {
MapMidSideMaskToPnsCorrelation(pAacDecoderChannelInfo);
}
CJointStereo_ApplyMS(pAacDecoderChannelInfo,
GetScaleFactorBandOffsets(&pAacDecoderChannelInfo[L]->icsInfo, pSamplingRateInfo),
GetWindowGroupLengthTable(&pAacDecoderChannelInfo[L]->icsInfo),
GetWindowGroups(&pAacDecoderChannelInfo[L]->icsInfo),
maxSfBandsL,
maxSfBandsR);
}
/* apply intensity stereo */ /* modifies pAacDecoderChannelInfo[]->aSpecSfb */
CJointStereo_ApplyIS(pAacDecoderChannelInfo,
GetScaleFactorBandOffsets(&pAacDecoderChannelInfo[L]->icsInfo, pSamplingRateInfo),
GetWindowGroupLengthTable(&pAacDecoderChannelInfo[L]->icsInfo),
GetWindowGroups(&pAacDecoderChannelInfo[L]->icsInfo),
GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo[L]->icsInfo),
pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow ? 1 : 0);
}
for (ch = 0; ch < el_channels; ch++)
{
{
/* write pAacDecoderChannelInfo[ch]->specScale */
CBlock_ScaleSpectralData(pAacDecoderChannelInfo[ch], pSamplingRateInfo);
ApplyTools (pAacDecoderChannelInfo, pSamplingRateInfo, flags, ch);
}
}
CRvlc_ElementCheck(
pAacDecoderChannelInfo,
pAacDecoderStaticChannelInfo,
flags,
el_channels
);
}
AAC_DECODER_ERROR CBlock_ReadSectionData(HANDLE_FDK_BITSTREAM bs,
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
const SamplingRateInfo *pSamplingRateInfo,
const UINT flags)
{
int top, band;
int sect_len, sect_len_incr;
int group;
UCHAR sect_cb;
UCHAR *pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook;
/* HCR input (long) */
SHORT *pNumLinesInSec = pAacDecoderChannelInfo->pDynData->specificTo.aac.aNumLineInSec4Hcr;
int numLinesInSecIdx = 0;
UCHAR *pHcrCodeBook = pAacDecoderChannelInfo->pDynData->specificTo.aac.aCodeBooks4Hcr;
const SHORT *BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo);
pAacDecoderChannelInfo->pDynData->specificTo.aac.numberSection = 0;
AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK;
FDKmemclear(pCodeBook, sizeof(UCHAR)*(8*16));
const int nbits = (IsLongBlock(&pAacDecoderChannelInfo->icsInfo) == 1) ? 5 : 3;
int sect_esc_val = (1 << nbits) - 1 ;
UCHAR ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo);
for (group=0; group<GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++)
{
for (band=0; band < ScaleFactorBandsTransmitted; )
{
sect_len = 0;
if ( flags & AC_ER_VCB11 ) {
sect_cb = (UCHAR) FDKreadBits(bs,5);
}
else
sect_cb = (UCHAR) FDKreadBits(bs,4);
if ( ((flags & AC_ER_VCB11) == 0) || ( sect_cb < 11 ) || ((sect_cb > 11) && (sect_cb < 16)) ) {
sect_len_incr = FDKreadBits(bs, nbits);
while (sect_len_incr == sect_esc_val)
{
sect_len += sect_esc_val;
sect_len_incr = FDKreadBits(bs, nbits);
}
}
else {
sect_len_incr = 1;
}
sect_len += sect_len_incr;
top = band + sect_len;
if (flags & AC_ER_HCR) {
/* HCR input (long) -- collecting sideinfo (for HCR-_long_ only) */
if (numLinesInSecIdx >= MAX_SFB_HCR) {
return AAC_DEC_PARSE_ERROR;
}
pNumLinesInSec[numLinesInSecIdx] = BandOffsets[top] - BandOffsets[band];
numLinesInSecIdx++;
if (sect_cb == BOOKSCL)
{
return AAC_DEC_INVALID_CODE_BOOK;
} else {
*pHcrCodeBook++ = sect_cb;
}
pAacDecoderChannelInfo->pDynData->specificTo.aac.numberSection++;
}
/* Check spectral line limits */
if (IsLongBlock( &(pAacDecoderChannelInfo->icsInfo) ))
{
if (top > 64) {
return AAC_DEC_DECODE_FRAME_ERROR;
}
} else { /* short block */
if (top + group*16 > (8 * 16)) {
return AAC_DEC_DECODE_FRAME_ERROR;
}
}
/* Check if decoded codebook index is feasible */
if ( (sect_cb == BOOKSCL)
|| ( (sect_cb == INTENSITY_HCB || sect_cb == INTENSITY_HCB2) && pAacDecoderChannelInfo->pDynData->RawDataInfo.CommonWindow == 0)
)
{
return AAC_DEC_INVALID_CODE_BOOK;
}
/* Store codebook index */
for (; band < top; band++)
{
pCodeBook[group*16+band] = sect_cb;
}
}
}
return ErrorStatus;
}
/*!
\brief Decode channel pair element
The function decodes a channel pair element.
\return none
*/
void CChannelElement_Decode(
CAacDecoderChannelInfo
*pAacDecoderChannelInfo[2], /*!< pointer to aac decoder channel info */
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[2],
SamplingRateInfo *pSamplingRateInfo, UINT flags, UINT elFlags,
int el_channels) {
int ch = 0;
int maxSfBandsL = 0, maxSfBandsR = 0;
int maybe_jstereo = (el_channels > 1);
if (flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA) && el_channels == 2) {
if (pAacDecoderChannelInfo[L]->data.usac.core_mode ||
pAacDecoderChannelInfo[R]->data.usac.core_mode) {
maybe_jstereo = 0;
}
}
if (maybe_jstereo) {
maxSfBandsL =
GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo[L]->icsInfo);
maxSfBandsR =
GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo[R]->icsInfo);
/* apply ms */
if (pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow) {
if (!(flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA))) {
if (pAacDecoderChannelInfo[L]->data.aac.PnsData.PnsActive ||
pAacDecoderChannelInfo[R]->data.aac.PnsData.PnsActive) {
MapMidSideMaskToPnsCorrelation(pAacDecoderChannelInfo);
}
}
/* if tns_on_lr == 1 run MS */ /* &&
(pAacDecoderChannelInfo[L]->pDynData->specificTo.usac.tns_active
== 1) */
if (((flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA)) &&
(pAacDecoderChannelInfo[L]->pDynData->specificTo.usac.tns_on_lr ==
1)) ||
((flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA)) == 0)) {
int max_sfb_ste = (INT)(pAacDecoderChannelInfo[L]->icsInfo.max_sfb_ste);
CJointStereo_ApplyMS(
pAacDecoderChannelInfo, pAacDecoderStaticChannelInfo,
pAacDecoderChannelInfo[L]->pSpectralCoefficient,
pAacDecoderChannelInfo[R]->pSpectralCoefficient,
pAacDecoderChannelInfo[L]->pDynData->aSfbScale,
pAacDecoderChannelInfo[R]->pDynData->aSfbScale,
pAacDecoderChannelInfo[L]->specScale,
pAacDecoderChannelInfo[R]->specScale,
GetScaleFactorBandOffsets(&pAacDecoderChannelInfo[L]->icsInfo,
pSamplingRateInfo),
GetWindowGroupLengthTable(&pAacDecoderChannelInfo[L]->icsInfo),
GetWindowGroups(&pAacDecoderChannelInfo[L]->icsInfo), max_sfb_ste,
maxSfBandsL, maxSfBandsR,
pAacDecoderChannelInfo[L]
->pComData->jointStereoData.store_dmx_re_prev,
&(pAacDecoderChannelInfo[L]
->pComData->jointStereoData.store_dmx_re_prev_e),
1);
} /* if ( ((elFlags & AC_EL_USAC_CP_POSSIBLE).... */
} /* if (pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow)*/
/* apply intensity stereo */ /* modifies pAacDecoderChannelInfo[]->aSpecSfb
*/
if (!(flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA))) {
if ((pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow ==
1) &&
(el_channels == 2)) {
CJointStereo_ApplyIS(
pAacDecoderChannelInfo,
GetScaleFactorBandOffsets(&pAacDecoderChannelInfo[L]->icsInfo,
pSamplingRateInfo),
GetWindowGroupLengthTable(&pAacDecoderChannelInfo[L]->icsInfo),
GetWindowGroups(&pAacDecoderChannelInfo[L]->icsInfo),
GetScaleFactorBandsTransmitted(
&pAacDecoderChannelInfo[L]->icsInfo));
}
}
} /* maybe_stereo */
for (ch = 0; ch < el_channels; ch++) {
if (pAacDecoderChannelInfo[ch]->renderMode == AACDEC_RENDER_LPD) {
/* Decode LPD data */
CLpdChannelStream_Decode(pAacDecoderChannelInfo[ch],
pAacDecoderStaticChannelInfo[ch], flags);
} else {
UCHAR noSfbs =
GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo[ch]->icsInfo);
/* For USAC common window: max_sfb of both channels may differ
* (common_max_sfb == 0). */
if ((maybe_jstereo == 1) &&
(pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow ==
1)) {
noSfbs = fMax(maxSfBandsL, maxSfBandsR);
}
int CP_active = 0;
if (elFlags & AC_EL_USAC_CP_POSSIBLE) {
CP_active = pAacDecoderChannelInfo[ch]
->pComData->jointStereoData.cplx_pred_flag;
}
/* Omit writing of pAacDecoderChannelInfo[ch]->specScale for complex
stereo prediction since scaling has already been carried out. */
int max_sfb_ste = (INT)(pAacDecoderChannelInfo[L]->icsInfo.max_sfb_ste);
if ((!CP_active) || (CP_active && (max_sfb_ste < noSfbs)) ||
((flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA)) &&
(pAacDecoderChannelInfo[L]->pDynData->specificTo.usac.tns_on_lr ==
0))) {
CBlock_ScaleSpectralData(pAacDecoderChannelInfo[ch], noSfbs,
pSamplingRateInfo);
/*Active for the case of TNS applied before MS/CP*/
if ((flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA)) &&
(pAacDecoderChannelInfo[L]->pDynData->specificTo.usac.tns_on_lr ==
0)) {
if (IsLongBlock(&pAacDecoderChannelInfo[ch]->icsInfo)) {
for (int i = 0; i < noSfbs; i++) {
pAacDecoderChannelInfo[ch]->pDynData->aSfbScale[i] =
pAacDecoderChannelInfo[ch]->specScale[0];
}
} else {
for (int i = 0; i < 8; i++) {
for (int j = 0; j < noSfbs; j++) {
pAacDecoderChannelInfo[ch]->pDynData->aSfbScale[i * 16 + j] =
pAacDecoderChannelInfo[ch]->specScale[i];
}
}
}
}
}
}
} /* End "for (ch = 0; ch < el_channels; ch++)" */
if (maybe_jstereo) {
/* apply ms */
if (pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow) {
} /* CommonWindow */
else {
if (elFlags & AC_EL_USAC_CP_POSSIBLE) {
FDKmemclear(
pAacDecoderStaticChannelInfo[L]
->pCpeStaticData->jointStereoPersistentData.alpha_q_re_prev,
JointStereoMaximumGroups * JointStereoMaximumBands * sizeof(SHORT));
FDKmemclear(
pAacDecoderStaticChannelInfo[L]
->pCpeStaticData->jointStereoPersistentData.alpha_q_im_prev,
JointStereoMaximumGroups * JointStereoMaximumBands * sizeof(SHORT));
}
}
} /* if (maybe_jstereo) */
for (ch = 0; ch < el_channels; ch++) {
if (pAacDecoderChannelInfo[ch]->renderMode == AACDEC_RENDER_LPD) {
} else {
if (!(flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA))) {
/* Use same seed for coupled channels (CPE) */
int pnsCh = (ch > 0) ? L : ch;
CPns_UpdateNoiseState(
&pAacDecoderChannelInfo[ch]->data.aac.PnsData,
pAacDecoderChannelInfo[pnsCh]->data.aac.PnsData.currentSeed,
pAacDecoderChannelInfo[ch]->pComData->pnsRandomSeed);
}
if ((!(flags & (AC_USAC))) ||
((flags & (AC_USAC)) &&
(pAacDecoderChannelInfo[L]->pDynData->specificTo.usac.tns_active ==
1)) ||
(maybe_jstereo == 0)) {
ApplyTools(
pAacDecoderChannelInfo, pSamplingRateInfo, flags, elFlags, ch,
pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow);
}
} /* End "} else" */
} /* End "for (ch = 0; ch < el_channels; ch++)" */
if (maybe_jstereo) {
/* apply ms */
if (pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow) {
/* if tns_on_lr == 0 run MS */
if ((flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA)) &&
(pAacDecoderChannelInfo[L]->pDynData->specificTo.usac.tns_on_lr ==
0)) {
int max_sfb_ste = (INT)(pAacDecoderChannelInfo[L]->icsInfo.max_sfb_ste);
CJointStereo_ApplyMS(
pAacDecoderChannelInfo, pAacDecoderStaticChannelInfo,
pAacDecoderChannelInfo[L]->pSpectralCoefficient,
pAacDecoderChannelInfo[R]->pSpectralCoefficient,
pAacDecoderChannelInfo[L]->pDynData->aSfbScale,
pAacDecoderChannelInfo[R]->pDynData->aSfbScale,
pAacDecoderChannelInfo[L]->specScale,
pAacDecoderChannelInfo[R]->specScale,
GetScaleFactorBandOffsets(&pAacDecoderChannelInfo[L]->icsInfo,
pSamplingRateInfo),
GetWindowGroupLengthTable(&pAacDecoderChannelInfo[L]->icsInfo),
GetWindowGroups(&pAacDecoderChannelInfo[L]->icsInfo), max_sfb_ste,
maxSfBandsL, maxSfBandsR,
pAacDecoderChannelInfo[L]
->pComData->jointStereoData.store_dmx_re_prev,
&(pAacDecoderChannelInfo[L]
->pComData->jointStereoData.store_dmx_re_prev_e),
1);
}
} /* if (pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow) */
} /* if (maybe_jstereo) */
for (ch = 0; ch < el_channels; ch++) {
if (elFlags & AC_EL_USAC_CP_POSSIBLE) {
pAacDecoderStaticChannelInfo[L]
->pCpeStaticData->jointStereoPersistentData.clearSpectralCoeffs = 0;
}
}
CRvlc_ElementCheck(pAacDecoderChannelInfo, pAacDecoderStaticChannelInfo,
flags, el_channels);
}
int CShortBlock_ReadSpectralData(HANDLE_BIT_BUF bs,
CAacDecoderChannelInfo *pAacDecoderChannelInfo)
{
int i,index,step;
int window,group,groupwin,groupoffset,band;
int scfExp,scfMod;
int *QuantizedCoef;
char *pCodeBook = pAacDecoderChannelInfo->pCodeBook;
short *pScaleFactor = pAacDecoderChannelInfo->pScaleFactor;
float *pSpectralCoefficient = pAacDecoderChannelInfo->pSpectralCoefficient;
const short *BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->IcsInfo);
const CodeBookDescription *hcb;
COUNT_sub_start("CShortBlock_ReadSpectralData");
QuantizedCoef = (int*)pSpectralCoefficient;
PTR_INIT(5); INDIRECT(4); FUNC(1); /* counting previous operations */
LOOP(1);
for (window=0; window < MaximumWindows; window++)
{
PTR_INIT(1); /* pointer for QuantizedCoef[] */
LOOP(1);
for (index=0; index < MaximumBinsShort; index++) {
MOVE(1);
QuantizedCoef[window*MaximumBinsShort+index] = 0;
}
}
MOVE(1);
groupoffset = 0;
INDIRECT(1); FUNC(1); LOOP(1);
for (group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->IcsInfo); group++)
{
PTR_INIT(1); /* pointer for pCodeBook[] */
INDIRECT(1); FUNC(1); LOOP(1);
for (band=0; band < GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->IcsInfo); band++)
{
PTR_INIT(1);
hcb = &HuffmanCodeBooks[pCodeBook[group*MaximumScaleFactorBandsShort+band]];
INDIRECT(1); FUNC(1); LOOP(1);
for (groupwin=0; groupwin < GetWindowGroupLength(&pAacDecoderChannelInfo->IcsInfo,group); groupwin++)
{
ADD(1);
window = groupoffset + groupwin;
ADD(4); LOGIC(3); BRANCH(1);
if ( (pCodeBook[group*MaximumScaleFactorBandsShort+band] == ZERO_HCB)
||(pCodeBook[group*MaximumScaleFactorBandsShort+band] == INTENSITY_HCB)
||(pCodeBook[group*MaximumScaleFactorBandsShort+band] == INTENSITY_HCB2)
||(pCodeBook[group*MaximumScaleFactorBandsShort+band] == NOISE_HCB))
continue;
MOVE(1);
step = 0 ;
PTR_INIT(2); /* pointer for BandOffsets[],
QuantizedCoef[] */
LOOP(1);
for (index=BandOffsets[band]; index < BandOffsets[band+1]; index+=step)
{
INDIRECT(1); FUNC(2); PTR_INIT(1); FUNC(3);
step = CBlock_UnpackIndex(CBlock_DecodeHuffmanWord(bs,hcb->CodeBook),&QuantizedCoef[window*MaximumBinsShort+index],hcb);
INDIRECT(1); BRANCH(1);
if (hcb->Offset == 0)
{
PTR_INIT(1); /* pointer for QuantizedCoef[] */
LOOP(1);
for (i=0; i < step; i++)
{
BRANCH(1);
if (QuantizedCoef[window*MaximumBinsShort+index+i])
{
FUNC(2);
if (GetBits(bs,1)) /* sign bit */
{
MULT(1); STORE(1);
QuantizedCoef [window*MaximumBinsShort+index+i] = -QuantizedCoef [window*MaximumBinsShort+index+i];
}
}
}
}
ADD(1); BRANCH(1);
if (pCodeBook[group*MaximumScaleFactorBandsShort+band] == ESCBOOK)
{
FUNC(2); STORE(1);
QuantizedCoef[window*MaximumBinsShort+index] = CBlock_GetEscape(bs,QuantizedCoef[window*MaximumBinsShort+index]);
FUNC(2); STORE(1);
QuantizedCoef[window*MaximumBinsShort+index+1] = CBlock_GetEscape(bs,QuantizedCoef[window*MaximumBinsShort+index+1]);
FUNC(1); FUNC(1); ADD(2); LOGIC(1); BRANCH(1);
if (abs(QuantizedCoef[window*MaximumBinsShort+index]) > MAX_QUANTIZED_VALUE || abs(QuantizedCoef[window*MaximumBinsShort+index+1]) > MAX_QUANTIZED_VALUE) {
COUNT_sub_end();
return (AAC_DEC_DECODE_FRAME_ERROR);
}
}
}
}
}
INDIRECT(1); ADD(1);
groupoffset += GetWindowGroupLength(&pAacDecoderChannelInfo->IcsInfo,group);
}
INDIRECT(1); FUNC(1); LOOP(1);
for (window=0, group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->IcsInfo); group++)
{
INDIRECT(1); FUNC(1); LOOP(1);
for (groupwin=0; groupwin < GetWindowGroupLength(&pAacDecoderChannelInfo->IcsInfo,group); groupwin++, window++)
{
MOVE(1);
index = 0;
PTR_INIT(2); /* pointer for BandOffsets[],
pScaleFactor */
INDIRECT(1); FUNC(1); LOOP(1) ;
/* quantize & apply scalefactors */
for (band=0; band < GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->IcsInfo); band++)
{
/* scalefactor exponents and scalefactor mantissa for current band */
SHIFT(1);
scfExp = pScaleFactor[group*MaximumScaleFactorBandsShort+band] >> 2;
LOGIC(1);
scfMod = pScaleFactor[group*MaximumScaleFactorBandsShort+band] & 3;
PTR_INIT(2); /* pointer for QuantizedCoef[],
pSpectralCoefficient */
LOOP(1);
for (index=BandOffsets[band]; index < BandOffsets[band+1] ;index++)
{
ADD(1); FUNC(3); STORE(1);
pSpectralCoefficient[window*MaximumBinsShort+index] = CBlock_Quantize(QuantizedCoef[window*MaximumBinsShort+index],scfMod,scfExp-6);
}
}
PTR_INIT(1); /* pointer for pSpectralCoefficient */
LOOP(1);
for (; index < MaximumBinsShort; index++) {
MOVE(1);
pSpectralCoefficient[window*MaximumBinsShort+index] = 0.0;
}
}
}
COUNT_sub_end();
return (AAC_DEC_OK);
}
