/*! * \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 "ComplexityAnalysis.h" WELSVP_NAMESPACE_BEGIN  /////////////////////////////////////////////////////////////////////////////////////////////////////////////// CComplexityAnalysis::CComplexityAnalysis (int32_t iCpuFlag) {  m_eMethod   = METHOD_COMPLEXITY_ANALYSIS;  m_pfGomSad   = NULL;  WelsMemset (&m_sComplexityAnalysisParam, 0, sizeof (m_sComplexityAnalysisParam));} CComplexityAnalysis::~CComplexityAnalysis() {} EResult CComplexityAnalysis::Process (int32_t iType, SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {  EResult eReturn = RET_SUCCESS;   switch (m_sComplexityAnalysisParam.iComplexityAnalysisMode) {  case FRAME_SAD:    AnalyzeFrameComplexityViaSad (pSrcPixMap, pRefPixMap);    break;  case GOM_SAD:    AnalyzeGomComplexityViaSad (pSrcPixMap, pRefPixMap);    break;  case GOM_VAR:    AnalyzeGomComplexityViaVar (pSrcPixMap, pRefPixMap);    break;  default:    eReturn = RET_INVALIDPARAM;    break;  }   return eReturn;}  EResult CComplexityAnalysis::Set (int32_t iType, void* pParam) {  if (pParam == NULL) {    return RET_INVALIDPARAM;  }   m_sComplexityAnalysisParam = * (SComplexityAnalysisParam*)pParam;   return RET_SUCCESS;} EResult CComplexityAnalysis::Get (int32_t iType, void* pParam) {  if (pParam == NULL) {    return RET_INVALIDPARAM;  }   SComplexityAnalysisParam* sComplexityAnalysisParam = (SComplexityAnalysisParam*)pParam;   sComplexityAnalysisParam->iFrameComplexity = m_sComplexityAnalysisParam.iFrameComplexity;   return RET_SUCCESS;}  ///////////////////////////////////////////////////////////////////////////////////////////////void CComplexityAnalysis::AnalyzeFrameComplexityViaSad (SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {  SVAACalcResult*     pVaaCalcResults = NULL;  pVaaCalcResults = m_sComplexityAnalysisParam.pCalcResult;   m_sComplexityAnalysisParam.iFrameComplexity = pVaaCalcResults->iFrameSad;   if (m_sComplexityAnalysisParam.iCalcBgd) { //BGD control    m_sComplexityAnalysisParam.iFrameComplexity = (int32_t)GetFrameSadExcludeBackground (pSrcPixMap, pRefPixMap);  }} int32_t CComplexityAnalysis::GetFrameSadExcludeBackground (SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {  int32_t iWidth     = pSrcPixMap->sRect.iRectWidth;  int32_t iHeight    = pSrcPixMap->sRect.iRectHeight;  int32_t iMbWidth  = iWidth  >> 4;  int32_t iMbHeight = iHeight >> 4;  int32_t iMbNum    = iMbWidth * iMbHeight;   int32_t iMbNumInGom = m_sComplexityAnalysisParam.iMbNumInGom;  int32_t iGomMbNum = (iMbNum + iMbNumInGom - 1) / iMbNumInGom;  int32_t iGomMbStartIndex = 0, iGomMbEndIndex = 0;   uint8_t* pBackgroundMbFlag = (uint8_t*)m_sComplexityAnalysisParam.pBackgroundMbFlag;  uint32_t* uiRefMbType = (uint32_t*)m_sComplexityAnalysisParam.uiRefMbType;  SVAACalcResult* pVaaCalcResults = m_sComplexityAnalysisParam.pCalcResult;  int32_t*  pGomForegroundBlockNum = m_sComplexityAnalysisParam.pGomForegroundBlockNum;   uint32_t uiFrameSad = 0;  for (int32_t j = 0; j < iGomMbNum; j ++) {    iGomMbStartIndex = j * iMbNumInGom;    iGomMbEndIndex = WELS_MIN ((j + 1) * iMbNumInGom, iMbNum);     for (int32_t i = iGomMbStartIndex; i < iGomMbEndIndex; i ++) {      if (pBackgroundMbFlag[i] == 0 || IS_INTRA (uiRefMbType[i])) {        pGomForegroundBlockNum[j]++;        uiFrameSad += pVaaCalcResults->pSad8x8[i][0];        uiFrameSad += pVaaCalcResults->pSad8x8[i][1];        uiFrameSad += pVaaCalcResults->pSad8x8[i][2];        uiFrameSad += pVaaCalcResults->pSad8x8[i][3];      }    }  }   return (uiFrameSad);}  void InitGomSadFunc (PGOMSadFunc& pfGomSad, uint8_t iCalcBgd) {  pfGomSad = GomSampleSad;   if (iCalcBgd) {    pfGomSad = GomSampleSadExceptBackground;  }} void GomSampleSad (uint32_t* pGomSad, int32_t* pGomForegroundBlockNum, int32_t* pSad8x8, uint8_t pBackgroundMbFlag) {  (*pGomForegroundBlockNum) ++;  *pGomSad += pSad8x8[0];  *pGomSad += pSad8x8[1];  *pGomSad += pSad8x8[2];  *pGomSad += pSad8x8[3];} void GomSampleSadExceptBackground (uint32_t* pGomSad, int32_t* pGomForegroundBlockNum, int32_t* pSad8x8,                                   uint8_t pBackgroundMbFlag) {  if (pBackgroundMbFlag == 0) {    (*pGomForegroundBlockNum) ++;    *pGomSad += pSad8x8[0];    *pGomSad += pSad8x8[1];    *pGomSad += pSad8x8[2];    *pGomSad += pSad8x8[3];  }} void CComplexityAnalysis::AnalyzeGomComplexityViaSad (SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {  int32_t iWidth     = pSrcPixMap->sRect.iRectWidth;  int32_t iHeight    = pSrcPixMap->sRect.iRectHeight;  int32_t iMbWidth  = iWidth  >> 4;  int32_t iMbHeight = iHeight >> 4;  int32_t iMbNum    = iMbWidth * iMbHeight;   int32_t iMbNumInGom = m_sComplexityAnalysisParam.iMbNumInGom;  int32_t iGomMbNum = (iMbNum + iMbNumInGom - 1) / iMbNumInGom;   int32_t iGomMbStartIndex = 0, iGomMbEndIndex = 0, iGomMbRowNum = 0;  int32_t iMbStartIndex = 0, iMbEndIndex = 0;   uint8_t* pBackgroundMbFlag = (uint8_t*)m_sComplexityAnalysisParam.pBackgroundMbFlag;  uint32_t* uiRefMbType = (uint32_t*)m_sComplexityAnalysisParam.uiRefMbType;  SVAACalcResult* pVaaCalcResults = m_sComplexityAnalysisParam.pCalcResult;  int32_t*  pGomForegroundBlockNum = (int32_t*)m_sComplexityAnalysisParam.pGomForegroundBlockNum;  int32_t*  pGomComplexity = (int32_t*)m_sComplexityAnalysisParam.pGomComplexity;    uint32_t uiGomSad = 0, uiFrameSad = 0;   InitGomSadFunc (m_pfGomSad, m_sComplexityAnalysisParam.iCalcBgd);   for (int32_t j = 0; j < iGomMbNum; j ++) {    uiGomSad = 0;     iGomMbStartIndex = j * iMbNumInGom;    iGomMbEndIndex = WELS_MIN ((j + 1) * iMbNumInGom, iMbNum);    iGomMbRowNum = (iGomMbEndIndex + iMbWidth - 1) / iMbWidth  - iGomMbStartIndex / iMbWidth;     iMbStartIndex = iGomMbStartIndex;    iMbEndIndex = WELS_MIN ((iMbStartIndex / iMbWidth + 1) * iMbWidth, iGomMbEndIndex);     do {      for (int32_t i = iMbStartIndex; i < iMbEndIndex; i ++) {        m_pfGomSad (&uiGomSad, pGomForegroundBlockNum + j, pVaaCalcResults->pSad8x8[i], pBackgroundMbFlag[i]                    && !IS_INTRA (uiRefMbType[i]));      }       iMbStartIndex = iMbEndIndex;      iMbEndIndex = WELS_MIN (iMbEndIndex + iMbWidth , iGomMbEndIndex);     } while (--iGomMbRowNum);     pGomComplexity[j] = uiGomSad;    uiFrameSad += pGomComplexity[j];  }   m_sComplexityAnalysisParam.iFrameComplexity = uiFrameSad;}  void CComplexityAnalysis::AnalyzeGomComplexityViaVar (SPixMap* pSrcPixMap, SPixMap* pRefPixMap) {  int32_t iWidth     = pSrcPixMap->sRect.iRectWidth;  int32_t iHeight    = pSrcPixMap->sRect.iRectHeight;  int32_t iMbWidth  = iWidth  >> 4;  int32_t iMbHeight = iHeight >> 4;  int32_t iMbNum    = iMbWidth * iMbHeight;   int32_t iMbNumInGom = m_sComplexityAnalysisParam.iMbNumInGom;  int32_t iGomMbNum = (iMbNum + iMbNumInGom - 1) / iMbNumInGom;  int32_t iGomSampleNum = 0;   int32_t iGomMbStartIndex = 0, iGomMbEndIndex = 0, iGomMbRowNum = 0;  int32_t iMbStartIndex = 0, iMbEndIndex = 0;   SVAACalcResult* pVaaCalcResults = m_sComplexityAnalysisParam.pCalcResult;  int32_t*  pGomComplexity = (int32_t*)m_sComplexityAnalysisParam.pGomComplexity;    uint32_t uiSampleSum = 0, uiSquareSum = 0;   for (int32_t j = 0; j < iGomMbNum; j ++) {    uiSampleSum = 0;    uiSquareSum = 0;     iGomMbStartIndex = j * iMbNumInGom;    iGomMbEndIndex = WELS_MIN ((j + 1) * iMbNumInGom, iMbNum);    iGomMbRowNum = (iGomMbEndIndex + iMbWidth - 1) / iMbWidth  - iGomMbStartIndex / iMbWidth;     iMbStartIndex = iGomMbStartIndex;    iMbEndIndex = WELS_MIN ((iMbStartIndex / iMbWidth + 1) * iMbWidth, iGomMbEndIndex);     iGomSampleNum = (iMbEndIndex - iMbStartIndex) * MB_WIDTH_LUMA * MB_WIDTH_LUMA;     do {      for (int32_t i = iMbStartIndex; i < iMbEndIndex; i ++) {        uiSampleSum += pVaaCalcResults->pSum16x16[i];        uiSquareSum += pVaaCalcResults->pSumOfSquare16x16[i];      }       iMbStartIndex = iMbEndIndex;      iMbEndIndex = WELS_MIN (iMbEndIndex + iMbWidth, iGomMbEndIndex);     } while (--iGomMbRowNum);     pGomComplexity[j] = uiSquareSum - (uiSampleSum * uiSampleSum / iGomSampleNum);  }}  WELSVP_NAMESPACE_END