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/*
** Copyright 2003-2010, VisualOn, Inc.
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
/*******************************************************************************
File: interface.c
Content: Interface psychoaccoustic/quantizer functions
*******************************************************************************/
#include "basic_op.h"
#include "oper_32b.h"
#include "psy_const.h"
#include "interface.h"
/*****************************************************************************
*
* function name: BuildInterface
* description: update output parameter
*
**********************************************************************************/
void BuildInterface(Word32 *groupedMdctSpectrum,
const Word16 mdctScale,
SFB_THRESHOLD *groupedSfbThreshold,
SFB_ENERGY *groupedSfbEnergy,
SFB_ENERGY *groupedSfbSpreadedEnergy,
const SFB_ENERGY_SUM sfbEnergySumLR,
const SFB_ENERGY_SUM sfbEnergySumMS,
const Word16 windowSequence,
const Word16 windowShape,
const Word16 groupedSfbCnt,
const Word16 *groupedSfbOffset,
const Word16 maxSfbPerGroup,
const Word16 *groupedSfbMinSnr,
const Word16 noOfGroups,
const Word16 *groupLen,
PSY_OUT_CHANNEL *psyOutCh)
{
Word32 j;
Word32 grp;
Word32 mask;
Word16 *tmpV;
/*
copy values to psyOut
*/
psyOutCh->maxSfbPerGroup = maxSfbPerGroup;
psyOutCh->sfbCnt = groupedSfbCnt;
if(noOfGroups)
psyOutCh->sfbPerGroup = groupedSfbCnt/ noOfGroups;
else
psyOutCh->sfbPerGroup = 0x7fff;
psyOutCh->windowSequence = windowSequence;
psyOutCh->windowShape = windowShape;
psyOutCh->mdctScale = mdctScale;
psyOutCh->mdctSpectrum = groupedMdctSpectrum;
psyOutCh->sfbEnergy = groupedSfbEnergy->sfbLong;
psyOutCh->sfbThreshold = groupedSfbThreshold->sfbLong;
psyOutCh->sfbSpreadedEnergy = groupedSfbSpreadedEnergy->sfbLong;
tmpV = psyOutCh->sfbOffsets;
for(j=0; j<groupedSfbCnt + 1; j++) {
*tmpV++ = groupedSfbOffset[j];
}
tmpV = psyOutCh->sfbMinSnr;
for(j=0;j<groupedSfbCnt; j++) {
*tmpV++ = groupedSfbMinSnr[j];
}
/* generate grouping mask */
mask = 0;
for (grp = 0; grp < noOfGroups; grp++) {
mask = mask << 1;
for (j=1; j<groupLen[grp]; j++) {
mask = mask << 1;
mask |= 1;
}
}
psyOutCh->groupingMask = mask;
if (windowSequence != SHORT_WINDOW) {
psyOutCh->sfbEnSumLR = sfbEnergySumLR.sfbLong;
psyOutCh->sfbEnSumMS = sfbEnergySumMS.sfbLong;
}
else {
Word32 i;
Word32 accuSumMS=0;
Word32 accuSumLR=0;
Word32 *pSumMS = sfbEnergySumMS.sfbShort;
Word32 *pSumLR = sfbEnergySumLR.sfbShort;
for (i=TRANS_FAC; i; i--) {
accuSumLR = L_add(accuSumLR, *pSumLR); pSumLR++;
accuSumMS = L_add(accuSumMS, *pSumMS); pSumMS++;
}
psyOutCh->sfbEnSumMS = accuSumMS;
psyOutCh->sfbEnSumLR = accuSumLR;
}
}
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