ref: 44b048edd6e5f81d8eb14d8a4130984e6f2004b8
dir: /codec/processing/src/adaptivequantization/AdaptiveQuantization.cpp/
/*!
* \copy
* Copyright (c) 2013, Cisco Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "AdaptiveQuantization.h"
WELSVP_NAMESPACE_BEGIN
#define AVERAGE_TIME_MOTION (0.3) //0.3046875 // 1/4 + 1/16 - 1/128 ~ 0.3
#define AVERAGE_TIME_TEXTURE_QUALITYMODE (1.0) //0.5 // 1/2
#define AVERAGE_TIME_TEXTURE_BITRATEMODE (0.875) //0.5 // 1/2
#define MODEL_ALPHA (0.9910) //1.5 //1.1102
#define MODEL_TIME (5.8185) //9.0 //5.9842
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
CAdaptiveQuantization::CAdaptiveQuantization (int32_t iCpuFlag) {
m_CPUFlag = iCpuFlag;
m_eMethod = METHOD_ADAPTIVE_QUANT;
m_pfVar = NULL;
WelsMemset (&m_sAdaptiveQuantParam, 0, sizeof (m_sAdaptiveQuantParam));
WelsInitVarFunc (m_pfVar, m_CPUFlag);
}
CAdaptiveQuantization::~CAdaptiveQuantization() {
}
EResult CAdaptiveQuantization::Process (int32_t iType, SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {
EResult eReturn = RET_INVALIDPARAM;
int32_t iWidth = pSrcPixMap->sRect.iRectWidth;
int32_t iHeight = pSrcPixMap->sRect.iRectHeight;
int32_t iMbWidth = iWidth >> 4;
int32_t iMbHeight = iHeight >> 4;
int32_t iMbTotalNum = iMbWidth * iMbHeight;
SMotionTextureUnit* pMotionTexture = NULL;
SVAACalcResult* pVaaCalcResults = NULL;
int8_t iMotionTextureIndexToDeltaQp = 0;
int32_t iAverMotionTextureIndexToDeltaQp = 0; // double to uint32
double dAverageMotionIndex = 0.0; // double to float
double dAverageTextureIndex = 0.0;
double dQStep = 0.0;
double dLumaMotionDeltaQp = 0;
double dLumaTextureDeltaQp = 0;
uint8_t* pRefFrameY = NULL, *pCurFrameY = NULL;
int32_t iRefStride = 0, iCurStride = 0;
uint8_t* pRefFrameTmp = NULL, *pCurFrameTmp = NULL;
int32_t i = 0, j = 0;
pRefFrameY = (uint8_t*)pRefPixMap->pPixel[0];
pCurFrameY = (uint8_t*)pSrcPixMap->pPixel[0];
iRefStride = pRefPixMap->iStride[0];
iCurStride = pSrcPixMap->iStride[0];
/////////////////////////////////////// motion //////////////////////////////////
// motion MB residual variance
dAverageMotionIndex = 0.0;
dAverageTextureIndex = 0.0;
pMotionTexture = m_sAdaptiveQuantParam.pMotionTextureUnit;
pVaaCalcResults = m_sAdaptiveQuantParam.pCalcResult;
if (pVaaCalcResults->pRefY == pRefFrameY && pVaaCalcResults->pCurY == pCurFrameY) {
int32_t iMbIndex = 0;
int32_t iSumDiff, iSQDiff, uiSum, iSQSum;
for (j = 0; j < iMbHeight; j ++) {
pRefFrameTmp = pRefFrameY;
pCurFrameTmp = pCurFrameY;
for (i = 0; i < iMbWidth; i++) {
iSumDiff = pVaaCalcResults->pSad8x8[iMbIndex][0];
iSumDiff += pVaaCalcResults->pSad8x8[iMbIndex][1];
iSumDiff += pVaaCalcResults->pSad8x8[iMbIndex][2];
iSumDiff += pVaaCalcResults->pSad8x8[iMbIndex][3];
iSQDiff = pVaaCalcResults->pSsd16x16[iMbIndex];
uiSum = pVaaCalcResults->pSum16x16[iMbIndex];
iSQSum = pVaaCalcResults->pSumOfSquare16x16[iMbIndex];
iSumDiff = iSumDiff >> 8;
pMotionTexture->uiMotionIndex = (iSQDiff >> 8) - (iSumDiff * iSumDiff);
uiSum = uiSum >> 8;
pMotionTexture->uiTextureIndex = (iSQSum >> 8) - (uiSum * uiSum);
dAverageMotionIndex += pMotionTexture->uiMotionIndex;
dAverageTextureIndex += pMotionTexture->uiTextureIndex;
pMotionTexture++;
++iMbIndex;
pRefFrameTmp += MB_WIDTH_LUMA;
pCurFrameTmp += MB_WIDTH_LUMA;
}
pRefFrameY += (iRefStride) << 4;
pCurFrameY += (iCurStride) << 4;
}
} else {
for (j = 0; j < iMbHeight; j ++) {
pRefFrameTmp = pRefFrameY;
pCurFrameTmp = pCurFrameY;
for (i = 0; i < iMbWidth; i++) {
m_pfVar (pRefFrameTmp, iRefStride, pCurFrameTmp, iCurStride, pMotionTexture);
dAverageMotionIndex += pMotionTexture->uiMotionIndex;
dAverageTextureIndex += pMotionTexture->uiTextureIndex;
pMotionTexture++;
pRefFrameTmp += MB_WIDTH_LUMA;
pCurFrameTmp += MB_WIDTH_LUMA;
}
pRefFrameY += (iRefStride) << 4;
pCurFrameY += (iCurStride) << 4;
}
}
dAverageMotionIndex = dAverageMotionIndex / iMbTotalNum;
dAverageTextureIndex = dAverageTextureIndex / iMbTotalNum;
if ((dAverageMotionIndex <= PESN) && (dAverageMotionIndex >= -PESN)) {
dAverageMotionIndex = 1.0;
}
if ((dAverageTextureIndex <= PESN) && (dAverageTextureIndex >= -PESN)) {
dAverageTextureIndex = 1.0;
}
// motion mb residual map to QP
// texture mb original map to QP
iAverMotionTextureIndexToDeltaQp = 0;
dAverageMotionIndex = AVERAGE_TIME_MOTION * dAverageMotionIndex;
if (m_sAdaptiveQuantParam.iAdaptiveQuantMode == AQ_QUALITY_MODE) {
dAverageTextureIndex = AVERAGE_TIME_TEXTURE_QUALITYMODE * dAverageTextureIndex;
} else {
dAverageTextureIndex = AVERAGE_TIME_TEXTURE_BITRATEMODE * dAverageTextureIndex;
}
pMotionTexture = m_sAdaptiveQuantParam.pMotionTextureUnit;
for (j = 0; j < iMbHeight; j ++) {
for (i = 0; i < iMbWidth; i++) {
double a = pMotionTexture->uiTextureIndex / dAverageTextureIndex;
dQStep = (a - 1) / (a + MODEL_ALPHA);
dLumaTextureDeltaQp = MODEL_TIME * dQStep;// range +- 6
iMotionTextureIndexToDeltaQp = (int8_t)dLumaTextureDeltaQp;
a = pMotionTexture->uiMotionIndex / dAverageMotionIndex;
dQStep = (a - 1) / (a + MODEL_ALPHA);
dLumaMotionDeltaQp = MODEL_TIME * dQStep;// range +- 6
if ((m_sAdaptiveQuantParam.iAdaptiveQuantMode == AQ_QUALITY_MODE && dLumaMotionDeltaQp < -PESN)
|| (m_sAdaptiveQuantParam.iAdaptiveQuantMode == AQ_BITRATE_MODE)) {
iMotionTextureIndexToDeltaQp += (int8_t)dLumaMotionDeltaQp;
}
m_sAdaptiveQuantParam.pMotionTextureIndexToDeltaQp[j * iMbWidth + i] = iMotionTextureIndexToDeltaQp;
iAverMotionTextureIndexToDeltaQp += iMotionTextureIndexToDeltaQp;
pMotionTexture++;
}
}
m_sAdaptiveQuantParam.dAverMotionTextureIndexToDeltaQp = (1.0 * iAverMotionTextureIndexToDeltaQp) / iMbTotalNum;
eReturn = RET_SUCCESS;
return eReturn;
}
EResult CAdaptiveQuantization::Set (int32_t iType, void* pParam) {
if (pParam == NULL) {
return RET_INVALIDPARAM;
}
m_sAdaptiveQuantParam = * (SAdaptiveQuantizationParam*)pParam;
return RET_SUCCESS;
}
EResult CAdaptiveQuantization::Get (int32_t iType, void* pParam) {
if (pParam == NULL) {
return RET_INVALIDPARAM;
}
SAdaptiveQuantizationParam* sAdaptiveQuantParam = (SAdaptiveQuantizationParam*)pParam;
sAdaptiveQuantParam->dAverMotionTextureIndexToDeltaQp = m_sAdaptiveQuantParam.dAverMotionTextureIndexToDeltaQp;
return RET_SUCCESS;
}
///////////////////////////////////////////////////////////////////////////////////////////////
void CAdaptiveQuantization::WelsInitVarFunc (PVarFunc& pfVar, int32_t iCpuFlag) {
pfVar = SampleVariance16x16_c;
#ifdef X86_ASM
if (iCpuFlag & WELS_CPU_SSE2) {
pfVar = SampleVariance16x16_sse2;
}
#endif
#ifdef HAVE_NEON
if (iCpuFlag & WELS_CPU_NEON) {
pfVar = SampleVariance16x16_neon;
}
#endif
}
void SampleVariance16x16_c (uint8_t* pRefY, int32_t iRefStride, uint8_t* pSrcY, int32_t iSrcStride,
SMotionTextureUnit* pMotionTexture) {
uint32_t uiCurSquare = 0, uiSquare = 0;
uint16_t uiCurSum = 0, uiSum = 0;
for (int32_t y = 0; y < MB_WIDTH_LUMA; y++) {
for (int32_t x = 0; x < MB_WIDTH_LUMA; x++) {
uint32_t uiDiff = WELS_ABS (pRefY[x] - pSrcY[x]);
uiSum += uiDiff;
uiSquare += uiDiff * uiDiff;
uiCurSum += pSrcY[x];
uiCurSquare += pSrcY[x] * pSrcY[x];
}
pRefY += iRefStride;
pSrcY += iSrcStride;
}
uiSum = uiSum >> 8;
pMotionTexture->uiMotionIndex = (uiSquare >> 8) - (uiSum * uiSum);
uiCurSum = uiCurSum >> 8;
pMotionTexture->uiTextureIndex = (uiCurSquare >> 8) - (uiCurSum * uiCurSum);
}
WELSVP_NAMESPACE_END