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-rw-r--r--media/libstagefright/codecs/aacenc/src/adj_thr.c156
1 files changed, 78 insertions, 78 deletions
diff --git a/media/libstagefright/codecs/aacenc/src/adj_thr.c b/media/libstagefright/codecs/aacenc/src/adj_thr.c
index 0dbd216..83b43a1 100644
--- a/media/libstagefright/codecs/aacenc/src/adj_thr.c
+++ b/media/libstagefright/codecs/aacenc/src/adj_thr.c
@@ -1,26 +1,26 @@
-/*
- ** 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: adj_thr.c
-
- Content: Threshold compensation functions
-
+/*
+ ** 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: adj_thr.c
+
+ Content: Threshold compensation functions
+
*******************************************************************************/
-#include "basic_op.h"
+#include "basic_op.h"
#include "oper_32b.h"
#include "adj_thr_data.h"
#include "adj_thr.h"
@@ -29,14 +29,14 @@
#define minSnrLimit 0x6666 /* 1 dB */
-#define PEBITS_COEF 0x170a /* 0.18*(1 << 15)*/
-
-#define HOLE_THR_LONG 0x2873 /* 0.316*(1 << 15) */
-#define HOLE_THR_SHORT 0x4000 /* 0.5 *(1 << 15) */
-
-#define MS_THRSPREAD_COEF 0x7333 /* 0.9 * (1 << 15) */
-
-#define MIN_SNR_COEF 0x651f /* 3.16* (1 << (15 - 2)) */
+#define PEBITS_COEF 0x170a /* 0.18*(1 << 15)*/
+
+#define HOLE_THR_LONG 0x2873 /* 0.316*(1 << 15) */
+#define HOLE_THR_SHORT 0x4000 /* 0.5 *(1 << 15) */
+
+#define MS_THRSPREAD_COEF 0x7333 /* 0.9 * (1 << 15) */
+
+#define MIN_SNR_COEF 0x651f /* 3.16* (1 << (15 - 2)) */
/* values for avoid hole flag */
enum _avoid_hole_state {
@@ -67,15 +67,15 @@ static void calcThreshExp(Word32 thrExp[MAX_CHANNELS][MAX_GROUPED_SFB],
PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
const Word16 nChannels)
{
- Word16 ch, sfb, sfbGrp;
+ Word16 ch, sfb, sfbGrp;
Word32 *pthrExp, *psfbThre;
for (ch=0; ch<nChannels; ch++) {
- PSY_OUT_CHANNEL *psyOutChan = &psyOutChannel[ch];
- for(sfbGrp = 0; sfbGrp < psyOutChan->sfbCnt; sfbGrp+= psyOutChan->sfbPerGroup)
- pthrExp = &(thrExp[ch][sfbGrp]);
- psfbThre = psyOutChan->sfbThreshold + sfbGrp;
+ PSY_OUT_CHANNEL *psyOutChan = &psyOutChannel[ch];
+ for(sfbGrp = 0; sfbGrp < psyOutChan->sfbCnt; sfbGrp+= psyOutChan->sfbPerGroup)
+ pthrExp = &(thrExp[ch][sfbGrp]);
+ psfbThre = psyOutChan->sfbThreshold + sfbGrp;
for (sfb=0; sfb<psyOutChan->maxSfbPerGroup; sfb++) {
- *pthrExp = rsqrt(rsqrt(*psfbThre,INT_BITS),INT_BITS);
+ *pthrExp = rsqrt(rsqrt(*psfbThre,INT_BITS),INT_BITS);
pthrExp++; psfbThre++;
}
}
@@ -112,7 +112,7 @@ static void adaptMinSnr(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
}
if (nSfb > 0) {
- avgEn = avgEn / nSfb;
+ avgEn = avgEn / nSfb;
log_avgEn = iLog4(avgEn);
startRatio_x_avgEn = fixmul(msaParam->startRatio, avgEn);
@@ -172,18 +172,18 @@ static void initAvoidHoleFlag(Word16 ahFlag[MAX_CHANNELS][MAX_GROUPED_SFB],
if (psyOutChan->windowSequence != SHORT_WINDOW) {
for(sfbGrp = 0;sfbGrp < psyOutChan->sfbCnt;sfbGrp+= psyOutChan->sfbPerGroup){
- psfbSpreadEn = psyOutChan->sfbSpreadedEnergy + sfbGrp;
+ psfbSpreadEn = psyOutChan->sfbSpreadedEnergy + sfbGrp;
for (sfb=0; sfb<psyOutChan->maxSfbPerGroup; sfb++) {
- *psfbSpreadEn = *psfbSpreadEn >> 1; /* 0.5 */
+ *psfbSpreadEn = *psfbSpreadEn >> 1; /* 0.5 */
++psfbSpreadEn;
}
}
}
else {
- for(sfbGrp = 0;sfbGrp < psyOutChan->sfbCnt;sfbGrp+= psyOutChan->sfbPerGroup){
+ for(sfbGrp = 0;sfbGrp < psyOutChan->sfbCnt;sfbGrp+= psyOutChan->sfbPerGroup){
psfbSpreadEn = psyOutChan->sfbSpreadedEnergy + sfbGrp;
for (sfb=0; sfb<psyOutChan->maxSfbPerGroup; sfb++) {
- *psfbSpreadEn = (*psfbSpreadEn >> 1) + (*psfbSpreadEn >> 3); /* 0.63 */
+ *psfbSpreadEn = (*psfbSpreadEn >> 1) + (*psfbSpreadEn >> 3); /* 0.63 */
++psfbSpreadEn;
}
}
@@ -201,7 +201,7 @@ static void initAvoidHoleFlag(Word16 ahFlag[MAX_CHANNELS][MAX_GROUPED_SFB],
threshold = HOLE_THR_SHORT;
for(sfbGrp = 0;sfbGrp < psyOutChan->sfbCnt;sfbGrp+= psyOutChan->sfbPerGroup){
- Word16 *psfbMinSnr = psyOutChan->sfbMinSnr + sfbGrp;
+ Word16 *psfbMinSnr = psyOutChan->sfbMinSnr + sfbGrp;
for (sfb=0; sfb<psyOutChan->maxSfbPerGroup; sfb++) {
Word32 sfbEn, sfbEnm1, sfbEnp1, avgEn;
@@ -219,7 +219,7 @@ static void initAvoidHoleFlag(Word16 ahFlag[MAX_CHANNELS][MAX_GROUPED_SFB],
if (sfbEn > avgEn && avgEn > 0) {
Word32 tmpMinSnr;
- shift = norm_l(sfbEn);
+ shift = norm_l(sfbEn);
tmpMinSnr = Div_32(L_mpy_ls(avgEn, minSnrLimit) << shift, sfbEn << shift );
tmpMinSnr = max(tmpMinSnr, HOLE_THR_LONG);
tmpMinSnr = max(tmpMinSnr, threshold);
@@ -231,7 +231,7 @@ static void initAvoidHoleFlag(Word16 ahFlag[MAX_CHANNELS][MAX_GROUPED_SFB],
Word32 tmpMinSnr;
Word32 minSnrEn = L_mpy_wx(avgEn, *psfbMinSnr);
- if(minSnrEn < sfbEn) {
+ if(minSnrEn < sfbEn) {
shift = norm_l(sfbEn);
tmpMinSnr = Div_32( minSnrEn << shift, sfbEn<<shift);
}
@@ -242,7 +242,7 @@ static void initAvoidHoleFlag(Word16 ahFlag[MAX_CHANNELS][MAX_GROUPED_SFB],
*psfbMinSnr =
(min((tmpMinSnr >> 2), mult(*psfbMinSnr, MIN_SNR_COEF)) << 2);
- }
+ }
psfbMinSnr++;
}
}
@@ -266,17 +266,17 @@ static void initAvoidHoleFlag(Word16 ahFlag[MAX_CHANNELS][MAX_GROUPED_SFB],
psyOutChanM->sfbMinSnr[sfb] = MAX_16;
}
else {
- shift = norm_l(sfbEnM);
- psyOutChanM->sfbMinSnr[sfb] = min(max(psyOutChanM->sfbMinSnr[sfb],
+ shift = norm_l(sfbEnM);
+ psyOutChanM->sfbMinSnr[sfb] = min(max(psyOutChanM->sfbMinSnr[sfb],
round16(Div_32(maxThr<<shift, sfbEnM << shift))), minSnrLimit);
}
if(maxThr >= sfbEnS) {
psyOutChanS->sfbMinSnr[sfb] = MAX_16;
}
- else {
+ else {
shift = norm_l(sfbEnS);
- psyOutChanS->sfbMinSnr[sfb] = min(max(psyOutChanS->sfbMinSnr[sfb],
+ psyOutChanS->sfbMinSnr[sfb] = min(max(psyOutChanS->sfbMinSnr[sfb],
round16(Div_32(maxThr << shift, sfbEnS << shift))), minSnrLimit);
}
@@ -295,7 +295,7 @@ static void initAvoidHoleFlag(Word16 ahFlag[MAX_CHANNELS][MAX_GROUPED_SFB],
for(ch=0; ch<nChannels; ch++) {
PSY_OUT_CHANNEL *psyOutChan = &psyOutChannel[ch];
for(sfbGrp = 0;sfbGrp < psyOutChan->sfbCnt;sfbGrp+= psyOutChan->sfbPerGroup){
- Word16 *pahFlag = ahFlag[ch] + sfbGrp;
+ Word16 *pahFlag = ahFlag[ch] + sfbGrp;
for (sfb=0; sfb<psyOutChan->maxSfbPerGroup; sfb++) {
if ((psyOutChan->sfbSpreadedEnergy[sfbGrp+sfb] > psyOutChan->sfbEnergy[sfbGrp+sfb]) ||
@@ -328,7 +328,7 @@ static void calcPeNoAH(Word16 *pe,
PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
const Word16 nChannels)
{
- Word16 ch, sfb, sfbGrp;
+ Word16 ch, sfb, sfbGrp;
int ipe, iconstPart, inActiveLines;
ipe = 0;
@@ -347,7 +347,7 @@ static void calcPeNoAH(Word16 *pe,
}
}
}
- }
+ }
*pe = saturate(ipe);
*constPart = saturate(iconstPart);
@@ -367,14 +367,14 @@ static void reduceThresholds(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
const Word32 redVal)
{
Word32 sfbThrReduced;
- Word32 *psfbEn, *psfbThr;
- Word16 ch, sfb, sfbGrp;
+ Word32 *psfbEn, *psfbThr;
+ Word16 ch, sfb, sfbGrp;
for(ch=0; ch<nChannels; ch++) {
PSY_OUT_CHANNEL *psyOutChan = &psyOutChannel[ch];
for(sfbGrp=0; sfbGrp<psyOutChan->sfbCnt; sfbGrp+=psyOutChan->sfbPerGroup) {
- psfbEn = psyOutChan->sfbEnergy + sfbGrp;
- psfbThr = psyOutChan->sfbThreshold + sfbGrp;
+ psfbEn = psyOutChan->sfbEnergy + sfbGrp;
+ psfbThr = psyOutChan->sfbThreshold + sfbGrp;
for (sfb=0; sfb<psyOutChan->maxSfbPerGroup; sfb++) {
if (*psfbEn > *psfbThr) {
@@ -391,8 +391,8 @@ static void reduceThresholds(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
ahFlag[ch][sfbGrp+sfb] = AH_ACTIVE;
}
*psfbThr = sfbThrReduced;
- }
-
+ }
+
psfbEn++; psfbThr++;
}
}
@@ -419,8 +419,8 @@ static void correctThresh(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
PSY_OUT_CHANNEL *psyOutChan;
PE_CHANNEL_DATA *peChanData;
Word32 deltaSfbPe;
- Word32 normFactor;
- Word32 *psfbPeFactors;
+ Word32 normFactor;
+ Word32 *psfbPeFactors;
Word16 *psfbNActiveLines, *pahFlag;
Word32 sfbEn, sfbThr;
Word32 sfbThrReduced;
@@ -431,9 +431,9 @@ static void correctThresh(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
psyOutChan = &psyOutChannel[ch];
peChanData = &peData->peChannelData[ch];
for(sfbGrp = 0;sfbGrp < psyOutChan->sfbCnt;sfbGrp+= psyOutChan->sfbPerGroup){
- psfbPeFactors = peData->sfbPeFactors[ch] + sfbGrp;
- psfbNActiveLines = peChanData->sfbNActiveLines + sfbGrp;
- pahFlag = ahFlag[ch] + sfbGrp;
+ psfbPeFactors = peData->sfbPeFactors[ch] + sfbGrp;
+ psfbNActiveLines = peChanData->sfbNActiveLines + sfbGrp;
+ pahFlag = ahFlag[ch] + sfbGrp;
for (sfb=0; sfb<psyOutChan->maxSfbPerGroup; sfb++) {
Word32 redThrExp = thrExp[ch][sfbGrp+sfb] + redVal;
@@ -444,8 +444,8 @@ static void correctThresh(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
}
else {
*psfbPeFactors = 0;
- }
- psfbPeFactors++;
+ }
+ psfbPeFactors++;
pahFlag++; psfbNActiveLines++;
}
}
@@ -457,9 +457,9 @@ static void correctThresh(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
psyOutChan = &psyOutChannel[ch];
peChanData = &peData->peChannelData[ch];
for(sfbGrp = 0;sfbGrp < psyOutChan->sfbCnt;sfbGrp+= psyOutChan->sfbPerGroup){
- psfbPeFactors = peData->sfbPeFactors[ch] + sfbGrp;
- psfbNActiveLines = peChanData->sfbNActiveLines + sfbGrp;
- pahFlag = ahFlag[ch] + sfbGrp;
+ psfbPeFactors = peData->sfbPeFactors[ch] + sfbGrp;
+ psfbNActiveLines = peChanData->sfbNActiveLines + sfbGrp;
+ pahFlag = ahFlag[ch] + sfbGrp;
for (sfb=0; sfb<psyOutChan->maxSfbPerGroup; sfb++) {
/* pe difference for this sfb */
deltaSfbPe = *psfbPeFactors * deltaPe;
@@ -487,7 +487,7 @@ static void correctThresh(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
if(thrFactor > sfbThr) {
- shift = norm_l(thrFactor);
+ shift = norm_l(thrFactor);
sfbThrReduced = Div_32( sfbThr << shift, thrFactor<<shift );
}
else {
@@ -506,8 +506,8 @@ static void correctThresh(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
}
psyOutChan->sfbThreshold[sfbGrp+sfb] = sfbThrReduced;
- }
-
+ }
+
pahFlag++; psfbNActiveLines++; psfbPeFactors++;
}
}
@@ -539,8 +539,8 @@ static void reduceMinSnr(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
for (sfb=sfbSubWin; sfb<psyOutChannel[0].sfbCnt;
sfb+=psyOutChannel[0].sfbPerGroup) {
/* loop over all channels */
- PE_CHANNEL_DATA* peChan = peData->peChannelData;
- PSY_OUT_CHANNEL* psyOutCh = psyOutChannel;
+ PE_CHANNEL_DATA* peChan = peData->peChannelData;
+ PSY_OUT_CHANNEL* psyOutCh = psyOutChannel;
for (ch=0; ch<nChannels; ch++) {
if (ahFlag[ch][sfb] != NO_AH &&
psyOutCh->sfbMinSnr[sfb] < minSnrLimit) {
@@ -553,7 +553,7 @@ static void reduceMinSnr(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
peChan->sfbPe[sfb];
peData->pe = peData->pe + deltaPe;
peChan->pe = peChan->pe + deltaPe;
- }
+ }
peChan += 1; psyOutCh += 1;
}
/* stop if enough has been saved */
@@ -659,7 +659,7 @@ static void allowMoreHoles(PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
if(ahCnt) {
Word32 iahCnt;
- shift = norm_l(ahCnt);
+ shift = norm_l(ahCnt);
iahCnt = Div_32( 1 << shift, ahCnt << shift );
avgEn = fixmul(avgEn, iahCnt);
}
@@ -831,7 +831,7 @@ static Word16 calcBitSave(Word16 fillLevel,
fillLevel = max(fillLevel, clipLow);
fillLevel = min(fillLevel, clipHigh);
- if(clipHigh-clipLow)
+ if(clipHigh-clipLow)
bitsave = (maxBitSave - (((maxBitSave-minBitSave)*(fillLevel-clipLow))/
(clipHigh-clipLow)));
@@ -860,7 +860,7 @@ static Word16 calcBitSpend(Word16 fillLevel,
fillLevel = max(fillLevel, clipLow);
fillLevel = min(fillLevel, clipHigh);
- if(clipHigh-clipLow)
+ if(clipHigh-clipLow)
bitspend = (minBitSpend + ((maxBitSpend - minBitSpend)*(fillLevel - clipLow) /
(clipHigh-clipLow)));
@@ -964,7 +964,7 @@ static Word16 bitresCalcBitFac( const Word16 bitresBits,
bresParam->clipSpendLow, bresParam->clipSpendHigh,
bresParam->minBitSpend, bresParam->maxBitSpend);
- if(adjThrChan->peMax != adjThrChan->peMin)
+ if(adjThrChan->peMax != adjThrChan->peMin)
bitresFac = (100 - bitSave) + extract_l(((bitSpend + bitSave) * (pex - adjThrChan->peMin)) /
(adjThrChan->peMax - adjThrChan->peMin));
else
@@ -1196,7 +1196,7 @@ void AdjustThresholds(ADJ_THR_STATE *adjThrState,
if (peOffsDiff > 0) {
Word32 temp = 1000 - (nChannels * 200);
- chBitDistribution[ch] = chBitDistribution[ch] +
+ chBitDistribution[ch] = chBitDistribution[ch] +
(temp * peData.peChannelData[ch].pe) / peOffsDiff;
}
}
generated by cgit v1.1 at 2024-05-17 02:04:26 +0000