ref: 11f0a111772d964b30ee428979d2c25e11ee8df4
dir: /codec/encoder/core/src/wels_preprocess.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 "wels_preprocess.h"
#include "picture_handle.h"
#include "encoder_context.h"
#include "utils.h"
#include "encoder.h"
namespace WelsSVCEnc {
#define WelsSafeDelete(p) if(p){ delete (p); (p) = NULL; }
//***** entry API declaration ************************************************************************//
int32_t WelsInitScaledPic (SWelsSvcCodingParam* pParam, Scaled_Picture* pScaledPic, CMemoryAlign* pMemoryAlign);
bool JudgeNeedOfScaling (SWelsSvcCodingParam* pParam, Scaled_Picture* pScaledPic);
void FreeScaledPic (Scaled_Picture* pScaledPic, CMemoryAlign* pMemoryAlign);
//******* table definition ***********************************************************************//
const uint8_t g_kuiRefTemporalIdx[MAX_TEMPORAL_LEVEL][MAX_GOP_SIZE] = {
{ 0, }, // 0
{ 0, 0, }, // 1
{ 0, 0, 0, 1, }, // 2
{ 0, 0, 0, 2, 0, 1, 1, 2, }, // 3
};
const int32_t g_kiPixMapSizeInBits = sizeof (uint8_t) * 8;
inline void WelsUpdateSpatialIdxMap (sWelsEncCtx* pEncCtx, int32_t iPos, SPicture* pPic, int32_t iDidx) {
pEncCtx->sSpatialIndexMap[iPos].pSrc = pPic;
pEncCtx->sSpatialIndexMap[iPos].iDid = iDidx;
}
/***************************************************************************
*
* implement of the interface
*
***************************************************************************/
CWelsPreProcess::CWelsPreProcess (sWelsEncCtx* pEncCtx) {
m_pInterfaceVp = NULL;
m_bInitDone = false;
m_pEncCtx = pEncCtx;
memset (&m_sScaledPicture, 0, sizeof (m_sScaledPicture));
memset (m_pSpatialPic, 0, sizeof (m_pSpatialPic));
memset (m_uiSpatialLayersInTemporal, 0, sizeof (m_uiSpatialLayersInTemporal));
memset (m_uiSpatialPicNum, 0, sizeof (m_uiSpatialPicNum));
}
CWelsPreProcess::~CWelsPreProcess() {
FreeScaledPic (&m_sScaledPicture, m_pEncCtx->pMemAlign);
WelsPreprocessDestroy();
}
int32_t CWelsPreProcess::WelsPreprocessCreate() {
if (m_pInterfaceVp == NULL) {
CreateVpInterface ((void**) &m_pInterfaceVp, WELSVP_INTERFACE_VERION);
if (!m_pInterfaceVp)
goto exit;
} else
goto exit;
return 0;
exit:
WelsPreprocessDestroy();
return 1;
}
int32_t CWelsPreProcess::WelsPreprocessDestroy() {
DestroyVpInterface (m_pInterfaceVp, WELSVP_INTERFACE_VERION);
m_pInterfaceVp = NULL;
return 0;
}
int32_t CWelsPreProcess::WelsPreprocessReset (sWelsEncCtx* pCtx) {
int32_t iRet = -1;
if (pCtx) {
FreeScaledPic (&m_sScaledPicture, pCtx->pMemAlign);
iRet = InitLastSpatialPictures (pCtx);
iRet = WelsInitScaledPic (pCtx->pSvcParam, &m_sScaledPicture, pCtx->pMemAlign);
}
return iRet;
}
int32_t CWelsPreProcess::AllocSpatialPictures (sWelsEncCtx* pCtx, SWelsSvcCodingParam* pParam) {
CMemoryAlign* pMa = pCtx->pMemAlign;
const int32_t kiDlayerCount = pParam->iSpatialLayerNum;
int32_t iDlayerIndex = 0;
// spatial pictures
iDlayerIndex = 0;
do {
const int32_t kiPicWidth = pParam->sSpatialLayers[iDlayerIndex].iVideoWidth;
const int32_t kiPicHeight = pParam->sSpatialLayers[iDlayerIndex].iVideoHeight;
const uint8_t kuiLayerInTemporal = 2 + WELS_MAX (pParam->sDependencyLayers[iDlayerIndex].iHighestTemporalId, 1);
const uint8_t kuiRefNumInTemporal = kuiLayerInTemporal + pParam->iLTRRefNum;
uint8_t i = 0;
do {
SPicture* pPic = AllocPicture (pMa, kiPicWidth, kiPicHeight, false, 0);
WELS_VERIFY_RETURN_IF (1, (NULL == pPic))
m_pSpatialPic[iDlayerIndex][i] = pPic;
++ i;
} while (i < kuiRefNumInTemporal);
if (pParam->iUsageType == SCREEN_CONTENT_REAL_TIME)
m_uiSpatialLayersInTemporal[iDlayerIndex] = 1;
else
m_uiSpatialLayersInTemporal[iDlayerIndex] = kuiLayerInTemporal;
m_uiSpatialPicNum[iDlayerIndex] = kuiRefNumInTemporal;
++ iDlayerIndex;
} while (iDlayerIndex < kiDlayerCount);
return 0;
}
void CWelsPreProcess::FreeSpatialPictures (sWelsEncCtx* pCtx) {
CMemoryAlign* pMa = pCtx->pMemAlign;
int32_t j = 0;
while (j < pCtx->pSvcParam->iSpatialLayerNum) {
uint8_t i = 0;
uint8_t uiRefNumInTemporal = m_uiSpatialPicNum[j];
while (i < uiRefNumInTemporal) {
if (NULL != m_pSpatialPic[j][i]) {
FreePicture (pMa, &m_pSpatialPic[j][i]);
}
++ i;
}
m_uiSpatialLayersInTemporal[j] = 0;
++ j;
}
}
int32_t CWelsPreProcess::BuildSpatialPicList (sWelsEncCtx* pCtx, const SSourcePicture* kpSrcPic) {
SWelsSvcCodingParam* pSvcParam = pCtx->pSvcParam;
int32_t iSpatialNum = 0;
if (!m_bInitDone) {
if (WelsPreprocessCreate() != 0)
return -1;
//init source width and height
pSvcParam->SUsedPicRect.iLeft = 0;
pSvcParam->SUsedPicRect.iTop = 0;
pSvcParam->SUsedPicRect.iWidth = ((kpSrcPic->iPicWidth >> 1) << 1);
pSvcParam->SUsedPicRect.iHeight = ((kpSrcPic->iPicHeight >> 1) << 1);
if (WelsPreprocessReset (pCtx) != 0)
return -1;
m_bInitDone = true;
}
if (m_pInterfaceVp == NULL)
return -1;
pCtx->pVaa->bSceneChangeFlag = pCtx->pVaa->bIdrPeriodFlag = false;
if (pSvcParam->uiIntraPeriod)
pCtx->pVaa->bIdrPeriodFlag = (1 + pCtx->iFrameIndex >= (int32_t)pSvcParam->uiIntraPeriod) ? true : false;
iSpatialNum = SingleLayerPreprocess (pCtx, kpSrcPic, &m_sScaledPicture);
return iSpatialNum;
}
int32_t CWelsPreProcess::AnalyzeSpatialPic (sWelsEncCtx* pCtx, const int32_t kiDidx) {
SWelsSvcCodingParam* pSvcParam = pCtx->pSvcParam;
bool bNeededMbAq = (pSvcParam->bEnableAdaptiveQuant && (pCtx->eSliceType == P_SLICE));
bool bCalculateBGD = (pCtx->eSliceType == P_SLICE && pSvcParam->bEnableBackgroundDetection);
int32_t iCurTemporalIdx = m_uiSpatialLayersInTemporal[kiDidx] - 1;
int32_t iRefTemporalIdx = (int32_t)g_kuiRefTemporalIdx[pSvcParam->iDecompStages][pCtx->iCodingIndex &
(pSvcParam->uiGopSize - 1)];
if (pCtx->uiTemporalId == 0 && pCtx->pLtr[pCtx->uiDependencyId].bReceivedT0LostFlag)
iRefTemporalIdx = m_uiSpatialLayersInTemporal[kiDidx] + pCtx->pVaa->uiValidLongTermPicIdx;
SPicture* pCurPic = m_pSpatialPic[kiDidx][iCurTemporalIdx];
bool bCalculateVar = (pSvcParam->iRCMode >= RC_BITRATE_MODE && pCtx->eSliceType == I_SLICE);
if (pSvcParam->iUsageType == SCREEN_CONTENT_REAL_TIME) {
SVAAFrameInfoExt* pVaaExt = static_cast<SVAAFrameInfoExt*> (m_pEncCtx->pVaa);
SRefInfoParam* BestRefCandidateParam = & (pVaaExt->sVaaStrBestRefCandidate[0]);
SPicture* pRefPic = m_pSpatialPic[0][BestRefCandidateParam->iSrcListIdx];
VaaCalculation (pCtx->pVaa, pCurPic, pRefPic, false, bCalculateVar, bCalculateBGD);
if (pSvcParam->bEnableBackgroundDetection) {
BackgroundDetection (pCtx->pVaa, pCurPic, pRefPic, bCalculateBGD && pRefPic->iPictureType != I_SLICE);
}
if (bNeededMbAq) {
AdaptiveQuantCalculation (pCtx->pVaa, pCurPic, pRefPic);
}
} else {
SPicture* pRefPic = m_pSpatialPic[kiDidx][iRefTemporalIdx];
SPicture* pLastPic = m_pLastSpatialPicture[kiDidx][0];
bool bCalculateSQDiff = ((pLastPic->pData[0] == pRefPic->pData[0]) && bNeededMbAq);
bool bCalculateVar = (pSvcParam->iRCMode >= RC_BITRATE_MODE && pCtx->eSliceType == I_SLICE);
VaaCalculation (pCtx->pVaa, pCurPic, pRefPic, bCalculateSQDiff, bCalculateVar, bCalculateBGD);
if (pSvcParam->bEnableBackgroundDetection) {
BackgroundDetection (pCtx->pVaa, pCurPic, pRefPic, bCalculateBGD && pRefPic->iPictureType != I_SLICE);
}
if (bNeededMbAq) {
SPicture* pCurPic = m_pLastSpatialPicture[kiDidx][1];
SPicture* pRefPic = m_pLastSpatialPicture[kiDidx][0];
AdaptiveQuantCalculation (pCtx->pVaa, pCurPic, pRefPic);
}
AnalyzePictureComplexity (pCtx, pCurPic, pRefPic, kiDidx, bCalculateBGD);
WelsExchangeSpatialPictures (&m_pLastSpatialPicture[kiDidx][1], &m_pLastSpatialPicture[kiDidx][0]);
}
return 0;
}
int32_t CWelsPreProcess::UpdateSpatialPictures (sWelsEncCtx* pCtx, SWelsSvcCodingParam* pParam,
const int8_t iCurTid, const int32_t kiDidx) {
if (pCtx->pSvcParam->iUsageType == SCREEN_CONTENT_REAL_TIME)
return 0;
if (iCurTid < m_uiSpatialLayersInTemporal[kiDidx] - 1 || pParam->iDecompStages == 0) {
if ((iCurTid >= MAX_TEMPORAL_LEVEL) || (m_uiSpatialLayersInTemporal[kiDidx] - 1 > MAX_TEMPORAL_LEVEL)) {
InitLastSpatialPictures (pCtx);
return 1;
}
if (pParam->bEnableLongTermReference && pCtx->bLongTermRefFlag[kiDidx][iCurTid]) {
SPicture* tmp = m_pSpatialPic[kiDidx][m_uiSpatialLayersInTemporal[kiDidx] + pCtx->pVaa->uiMarkLongTermPicIdx];
m_pSpatialPic[kiDidx][m_uiSpatialLayersInTemporal[kiDidx] + pCtx->pVaa->uiMarkLongTermPicIdx] =
m_pSpatialPic[kiDidx][iCurTid];
m_pSpatialPic[kiDidx][iCurTid] = m_pSpatialPic[kiDidx][m_uiSpatialLayersInTemporal[kiDidx] - 1];
m_pSpatialPic[kiDidx][m_uiSpatialLayersInTemporal[kiDidx] - 1] = tmp;
pCtx->bLongTermRefFlag[kiDidx][iCurTid] = false;
} else {
WelsExchangeSpatialPictures (&m_pSpatialPic[kiDidx][m_uiSpatialLayersInTemporal[kiDidx] - 1],
&m_pSpatialPic[kiDidx][iCurTid]);
}
}
return 0;
}
/*
* SingleLayerPreprocess: down sampling if applicable
* @return: exact number of spatial layers need to encoder indeed
*/
int32_t CWelsPreProcess::SingleLayerPreprocess (sWelsEncCtx* pCtx, const SSourcePicture* kpSrc,
Scaled_Picture* pScaledPicture) {
SWelsSvcCodingParam* pSvcParam = pCtx->pSvcParam;
int8_t iDependencyId = pSvcParam->iSpatialLayerNum - 1;
int32_t iPicturePos = m_uiSpatialLayersInTemporal[iDependencyId] - 1;
SPicture* pSrcPic = NULL; // large
SPicture* pDstPic = NULL; // small
SSpatialLayerConfig* pDlayerParam = NULL;
SSpatialLayerInternal* pDlayerParamInternal = NULL;
int32_t iSpatialNum = 0;
int32_t iSrcWidth = 0;
int32_t iSrcHeight = 0;
int32_t iTargetWidth = 0;
int32_t iTargetHeight = 0;
int32_t iTemporalId = 0;
int32_t iActualSpatialLayerNum = 0;
pDlayerParamInternal = &pSvcParam->sDependencyLayers[iDependencyId];
pDlayerParam = &pSvcParam->sSpatialLayers[iDependencyId];
iTargetWidth = pDlayerParam->iVideoWidth;
iTargetHeight = pDlayerParam->iVideoHeight;
iTemporalId = pDlayerParamInternal->uiCodingIdx2TemporalId[pCtx->iCodingIndex & (pSvcParam->uiGopSize - 1)];
iSrcWidth = pSvcParam->SUsedPicRect.iWidth;
iSrcHeight = pSvcParam->SUsedPicRect.iHeight;
pSrcPic = pScaledPicture->pScaledInputPicture ? pScaledPicture->pScaledInputPicture :
m_pSpatialPic[iDependencyId][iPicturePos];
WelsMoveMemoryWrapper (pSvcParam, pSrcPic, kpSrc, iSrcWidth, iSrcHeight);
if (pSvcParam->bEnableDenoise)
BilateralDenoising (pSrcPic, iSrcWidth, iSrcHeight);
// different scaling in between input picture and dst highest spatial picture.
int32_t iShrinkWidth = iSrcWidth;
int32_t iShrinkHeight = iSrcHeight;
pDstPic = pSrcPic;
if (pScaledPicture->pScaledInputPicture) {
// for highest downsampling
pDstPic = m_pSpatialPic[iDependencyId][iPicturePos];
iShrinkWidth = pScaledPicture->iScaledWidth[iDependencyId];
iShrinkHeight = pScaledPicture->iScaledHeight[iDependencyId];
}
DownsamplePadding (pSrcPic, pDstPic, iSrcWidth, iSrcHeight, iShrinkWidth, iShrinkHeight, iTargetWidth, iTargetHeight);
if (pSvcParam->bEnableSceneChangeDetect && !pCtx->pVaa->bIdrPeriodFlag) {
if (pSvcParam->iUsageType == SCREEN_CONTENT_REAL_TIME) {
pCtx->pVaa->eSceneChangeIdc = (pCtx->bEncCurFrmAsIdrFlag ? LARGE_CHANGED_SCENE : DetectSceneChangeScreen (pCtx,
pDstPic));
pCtx->pVaa->bSceneChangeFlag = (LARGE_CHANGED_SCENE == pCtx->pVaa->eSceneChangeIdc);
} else {
if ((!pCtx->bEncCurFrmAsIdrFlag) && ! (pCtx->iCodingIndex & (pSvcParam->uiGopSize - 1))) {
SPicture* pRefPic = pCtx->pLtr[iDependencyId].bReceivedT0LostFlag ?
m_pSpatialPic[iDependencyId][m_uiSpatialLayersInTemporal[iDependencyId] +
pCtx->pVaa->uiValidLongTermPicIdx] : m_pLastSpatialPicture[iDependencyId][0];
pCtx->pVaa->bSceneChangeFlag = DetectSceneChange (pDstPic, pRefPic);
}
}
}
for (int32_t i = 0; i < pSvcParam->iSpatialLayerNum; i++) {
if (pSvcParam->sDependencyLayers[i].uiCodingIdx2TemporalId[pCtx->iCodingIndex & (pSvcParam->uiGopSize - 1)]
!= INVALID_TEMPORAL_ID) {
++ iActualSpatialLayerNum;
}
}
if (iTemporalId != INVALID_TEMPORAL_ID) {
WelsUpdateSpatialIdxMap (pCtx, iActualSpatialLayerNum - 1, pDstPic, iDependencyId);
++ iSpatialNum;
-- iActualSpatialLayerNum;
}
m_pLastSpatialPicture[iDependencyId][1] = m_pSpatialPic[iDependencyId][iPicturePos];
-- iDependencyId;
// generate other spacial layer
// pSrc is
// -- padded input pic, if downsample should be applied to generate highest layer, [if] block above
// -- highest layer, if no downsampling, [else] block above
if (pSvcParam->iSpatialLayerNum > 1) {
while (iDependencyId >= 0) {
pDlayerParamInternal = &pSvcParam->sDependencyLayers[iDependencyId];
pDlayerParam = &pSvcParam->sSpatialLayers[iDependencyId];
iTargetWidth = pDlayerParam->iVideoWidth;
iTargetHeight = pDlayerParam->iVideoHeight;
iTemporalId = pDlayerParamInternal->uiCodingIdx2TemporalId[pCtx->iCodingIndex & (pSvcParam->uiGopSize - 1)];
iPicturePos = m_uiSpatialLayersInTemporal[iDependencyId] - 1;
// NOT work for CGS, FIXME
// spatial layer is able to encode indeed
if ((iTemporalId != INVALID_TEMPORAL_ID)) {
// down sampling performed
pDstPic = m_pSpatialPic[iDependencyId][iPicturePos]; // small
iShrinkWidth = pScaledPicture->iScaledWidth[iDependencyId];
iShrinkHeight = pScaledPicture->iScaledHeight[iDependencyId];
DownsamplePadding (pSrcPic, pDstPic, iSrcWidth, iSrcHeight, iShrinkWidth, iShrinkHeight, iTargetWidth, iTargetHeight);
WelsUpdateSpatialIdxMap (pCtx, iActualSpatialLayerNum - 1, pDstPic, iDependencyId);
-- iActualSpatialLayerNum;
++ iSpatialNum;
m_pLastSpatialPicture[iDependencyId][1] = m_pSpatialPic[iDependencyId][iPicturePos];
}
-- iDependencyId;
}
}
return iSpatialNum;
}
/*!
* \brief Whether input picture need be scaled?
*/
bool JudgeNeedOfScaling (SWelsSvcCodingParam* pParam, Scaled_Picture* pScaledPicture) {
const int32_t kiInputPicWidth = pParam->SUsedPicRect.iWidth;
const int32_t kiInputPicHeight = pParam->SUsedPicRect.iHeight;
const int32_t kiDstPicWidth = pParam->sDependencyLayers[pParam->iSpatialLayerNum - 1].iActualWidth;
const int32_t kiDstPicHeight = pParam->sDependencyLayers[pParam->iSpatialLayerNum - 1].iActualHeight;
bool bNeedDownsampling = true;
int32_t iSpatialIdx = pParam->iSpatialLayerNum - 1;
if (kiDstPicWidth >= kiInputPicWidth && kiDstPicHeight >= kiInputPicHeight) {
iSpatialIdx --; // highest D layer do not need downsampling
bNeedDownsampling = false;
}
for (; iSpatialIdx >= 0; iSpatialIdx --) {
SSpatialLayerInternal* pCurLayer = &pParam->sDependencyLayers[iSpatialIdx];
int32_t iCurDstWidth = pCurLayer->iActualWidth;
int32_t iCurDstHeight = pCurLayer->iActualHeight;
int32_t iInputWidthXDstHeight = kiInputPicWidth * iCurDstHeight;
int32_t iInputHeightXDstWidth = kiInputPicHeight * iCurDstWidth;
if (iInputWidthXDstHeight > iInputHeightXDstWidth) {
pScaledPicture->iScaledWidth[iSpatialIdx] = iCurDstWidth;
pScaledPicture->iScaledHeight[iSpatialIdx] = iInputHeightXDstWidth / kiInputPicWidth;
} else {
pScaledPicture->iScaledWidth[iSpatialIdx] = iInputWidthXDstHeight / kiInputPicHeight;
pScaledPicture->iScaledHeight[iSpatialIdx] = iCurDstHeight;
}
}
return bNeedDownsampling;
}
int32_t WelsInitScaledPic (SWelsSvcCodingParam* pParam, Scaled_Picture* pScaledPicture, CMemoryAlign* pMemoryAlign) {
bool bInputPicNeedScaling = JudgeNeedOfScaling (pParam, pScaledPicture);
if (bInputPicNeedScaling) {
pScaledPicture->pScaledInputPicture = AllocPicture (pMemoryAlign, pParam->SUsedPicRect.iWidth,
pParam->SUsedPicRect.iHeight, false, 0);
if (pScaledPicture->pScaledInputPicture == NULL)
return -1;
}
return 0;
}
void FreeScaledPic (Scaled_Picture* pScaledPicture, CMemoryAlign* pMemoryAlign) {
if (pScaledPicture->pScaledInputPicture) {
FreePicture (pMemoryAlign, &pScaledPicture->pScaledInputPicture);
pScaledPicture->pScaledInputPicture = NULL;
}
}
int32_t CWelsPreProcess::InitLastSpatialPictures (sWelsEncCtx* pCtx) {
SWelsSvcCodingParam* pParam = pCtx->pSvcParam;
const int32_t kiDlayerCount = pParam->iSpatialLayerNum;
int32_t iDlayerIndex = 0;
if (pParam->iUsageType == SCREEN_CONTENT_REAL_TIME) {
for (; iDlayerIndex < MAX_DEPENDENCY_LAYER; iDlayerIndex++) {
m_pLastSpatialPicture[iDlayerIndex][0] = m_pLastSpatialPicture[iDlayerIndex][1] = NULL;
}
} else {
for (; iDlayerIndex < kiDlayerCount; iDlayerIndex++) {
const int32_t kiLayerInTemporal = m_uiSpatialLayersInTemporal[iDlayerIndex];
m_pLastSpatialPicture[iDlayerIndex][0] = m_pSpatialPic[iDlayerIndex][kiLayerInTemporal - 2];
m_pLastSpatialPicture[iDlayerIndex][1] = NULL;
}
for (; iDlayerIndex < MAX_DEPENDENCY_LAYER; iDlayerIndex++) {
m_pLastSpatialPicture[iDlayerIndex][0] = m_pLastSpatialPicture[iDlayerIndex][1] = NULL;
}
}
return 0;
}
//*********************************************************************************************************/
int32_t CWelsPreProcess::ColorspaceConvert (SWelsSvcCodingParam* pSvcParam, SPicture* pDstPic,
const SSourcePicture* kpSrc, const int32_t kiWidth, const int32_t kiHeight) {
return 1;
//not support yet
}
void CWelsPreProcess::BilateralDenoising (SPicture* pSrc, const int32_t kiWidth, const int32_t kiHeight) {
int32_t iMethodIdx = METHOD_DENOISE;
SPixMap sSrcPixMap;
memset (&sSrcPixMap, 0, sizeof (sSrcPixMap));
sSrcPixMap.pPixel[0] = pSrc->pData[0];
sSrcPixMap.pPixel[1] = pSrc->pData[1];
sSrcPixMap.pPixel[2] = pSrc->pData[2];
sSrcPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sSrcPixMap.sRect.iRectWidth = kiWidth;
sSrcPixMap.sRect.iRectHeight = kiHeight;
sSrcPixMap.iStride[0] = pSrc->iLineSize[0];
sSrcPixMap.iStride[1] = pSrc->iLineSize[1];
sSrcPixMap.iStride[2] = pSrc->iLineSize[2];
sSrcPixMap.eFormat = VIDEO_FORMAT_I420;
m_pInterfaceVp->Process (iMethodIdx, &sSrcPixMap, NULL);
}
bool CWelsPreProcess::DetectSceneChange (SPicture* pCurPicture, SPicture* pRefPicture) {
bool bSceneChangeFlag = false;
int32_t iMethodIdx = METHOD_SCENE_CHANGE_DETECTION_VIDEO;
SSceneChangeResult sSceneChangeDetectResult = { SIMILAR_SCENE };
SPixMap sSrcPixMap;
SPixMap sRefPixMap;
memset (&sSrcPixMap, 0, sizeof (sSrcPixMap));
memset (&sRefPixMap, 0, sizeof (sRefPixMap));
sSrcPixMap.pPixel[0] = pCurPicture->pData[0];
sSrcPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sSrcPixMap.iStride[0] = pCurPicture->iLineSize[0];
sSrcPixMap.sRect.iRectWidth = pCurPicture->iWidthInPixel;
sSrcPixMap.sRect.iRectHeight = pCurPicture->iHeightInPixel;
sSrcPixMap.eFormat = VIDEO_FORMAT_I420;
sRefPixMap.pPixel[0] = pRefPicture->pData[0];
sRefPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sRefPixMap.iStride[0] = pRefPicture->iLineSize[0];
sRefPixMap.sRect.iRectWidth = pRefPicture->iWidthInPixel;
sRefPixMap.sRect.iRectHeight = pRefPicture->iHeightInPixel;
sRefPixMap.eFormat = VIDEO_FORMAT_I420;
int32_t iRet = m_pInterfaceVp->Process (iMethodIdx, &sSrcPixMap, &sRefPixMap);
if (iRet == 0) {
m_pInterfaceVp->Get (iMethodIdx, (void*)&sSceneChangeDetectResult);
bSceneChangeFlag = (sSceneChangeDetectResult.eSceneChangeIdc == LARGE_CHANGED_SCENE) ? true : false;
}
return bSceneChangeFlag;
}
int32_t CWelsPreProcess::DownsamplePadding (SPicture* pSrc, SPicture* pDstPic, int32_t iSrcWidth, int32_t iSrcHeight,
int32_t iShrinkWidth, int32_t iShrinkHeight, int32_t iTargetWidth, int32_t iTargetHeight) {
int32_t iRet = 0;
SPixMap sSrcPixMap;
SPixMap sDstPicMap;
memset (&sSrcPixMap, 0, sizeof (sSrcPixMap));
memset (&sDstPicMap, 0, sizeof (sDstPicMap));
sSrcPixMap.pPixel[0] = pSrc->pData[0];
sSrcPixMap.pPixel[1] = pSrc->pData[1];
sSrcPixMap.pPixel[2] = pSrc->pData[2];
sSrcPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sSrcPixMap.sRect.iRectWidth = iSrcWidth;
sSrcPixMap.sRect.iRectHeight = iSrcHeight;
sSrcPixMap.iStride[0] = pSrc->iLineSize[0];
sSrcPixMap.iStride[1] = pSrc->iLineSize[1];
sSrcPixMap.iStride[2] = pSrc->iLineSize[2];
sSrcPixMap.eFormat = VIDEO_FORMAT_I420;
if (iSrcWidth != iShrinkWidth || iSrcHeight != iShrinkHeight) {
int32_t iMethodIdx = METHOD_DOWNSAMPLE;
sDstPicMap.pPixel[0] = pDstPic->pData[0];
sDstPicMap.pPixel[1] = pDstPic->pData[1];
sDstPicMap.pPixel[2] = pDstPic->pData[2];
sDstPicMap.iSizeInBits = g_kiPixMapSizeInBits;
sDstPicMap.sRect.iRectWidth = iShrinkWidth;
sDstPicMap.sRect.iRectHeight = iShrinkHeight;
sDstPicMap.iStride[0] = pDstPic->iLineSize[0];
sDstPicMap.iStride[1] = pDstPic->iLineSize[1];
sDstPicMap.iStride[2] = pDstPic->iLineSize[2];
sDstPicMap.eFormat = VIDEO_FORMAT_I420;
iRet = m_pInterfaceVp->Process (iMethodIdx, &sSrcPixMap, &sDstPicMap);
} else {
memcpy (&sDstPicMap, &sSrcPixMap, sizeof (sDstPicMap)); // confirmed_safe_unsafe_usage
}
// get rid of odd line
iShrinkWidth -= (iShrinkWidth & 1);
iShrinkHeight -= (iShrinkHeight & 1);
Padding ((uint8_t*)sDstPicMap.pPixel[0], (uint8_t*)sDstPicMap.pPixel[1], (uint8_t*)sDstPicMap.pPixel[2],
sDstPicMap.iStride[0], sDstPicMap.iStride[1], iShrinkWidth, iTargetWidth, iShrinkHeight, iTargetHeight);
return iRet;
}
//*********************************************************************************************************/
void CWelsPreProcess::VaaCalculation (SVAAFrameInfo* pVaaInfo, SPicture* pCurPicture, SPicture* pRefPicture,
bool bCalculateSQDiff, bool bCalculateVar, bool bCalculateBGD) {
pVaaInfo->sVaaCalcInfo.pCurY = pCurPicture->pData[0];
pVaaInfo->sVaaCalcInfo.pRefY = pRefPicture->pData[0];
{
int32_t iMethodIdx = METHOD_VAA_STATISTICS;
SPixMap sCurPixMap;
SPixMap sRefPixMap;
memset (&sCurPixMap, 0, sizeof (sCurPixMap));
memset (&sRefPixMap, 0, sizeof (sRefPixMap));
SVAACalcParam calc_param = {0};
sCurPixMap.pPixel[0] = pCurPicture->pData[0];
sCurPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sCurPixMap.sRect.iRectWidth = pCurPicture->iWidthInPixel;
sCurPixMap.sRect.iRectHeight = pCurPicture->iHeightInPixel;
sCurPixMap.iStride[0] = pCurPicture->iLineSize[0];
sCurPixMap.eFormat = VIDEO_FORMAT_I420;
sRefPixMap.pPixel[0] = pRefPicture->pData[0];
sRefPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sRefPixMap.sRect.iRectWidth = pRefPicture->iWidthInPixel;
sRefPixMap.sRect.iRectHeight = pRefPicture->iHeightInPixel;
sRefPixMap.iStride[0] = pRefPicture->iLineSize[0];
sRefPixMap.eFormat = VIDEO_FORMAT_I420;
calc_param.iCalcVar = bCalculateVar;
calc_param.iCalcBgd = bCalculateBGD;
calc_param.iCalcSsd = bCalculateSQDiff;
calc_param.pCalcResult = &pVaaInfo->sVaaCalcInfo;
m_pInterfaceVp->Set (iMethodIdx, &calc_param);
m_pInterfaceVp->Process (iMethodIdx, &sCurPixMap, &sRefPixMap);
}
}
void CWelsPreProcess::BackgroundDetection (SVAAFrameInfo* pVaaInfo, SPicture* pCurPicture, SPicture* pRefPicture,
bool bDetectFlag) {
if (bDetectFlag) {
pVaaInfo->iPicWidth = pCurPicture->iWidthInPixel;
pVaaInfo->iPicHeight = pCurPicture->iHeightInPixel;
pVaaInfo->iPicStride = pCurPicture->iLineSize[0];
pVaaInfo->iPicStrideUV = pCurPicture->iLineSize[1];
pVaaInfo->pCurY = pCurPicture->pData[0];
pVaaInfo->pRefY = pRefPicture->pData[0];
pVaaInfo->pCurU = pCurPicture->pData[1];
pVaaInfo->pRefU = pRefPicture->pData[1];
pVaaInfo->pCurV = pCurPicture->pData[2];
pVaaInfo->pRefV = pRefPicture->pData[2];
int32_t iMethodIdx = METHOD_BACKGROUND_DETECTION;
SPixMap sSrcPixMap;
SPixMap sRefPixMap;
memset (&sSrcPixMap, 0, sizeof (sSrcPixMap));
memset (&sRefPixMap, 0, sizeof (sRefPixMap));
SBGDInterface BGDParam = {0};
sSrcPixMap.pPixel[0] = pCurPicture->pData[0];
sSrcPixMap.pPixel[1] = pCurPicture->pData[1];
sSrcPixMap.pPixel[2] = pCurPicture->pData[2];
sSrcPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sSrcPixMap.iStride[0] = pCurPicture->iLineSize[0];
sSrcPixMap.iStride[1] = pCurPicture->iLineSize[1];
sSrcPixMap.iStride[2] = pCurPicture->iLineSize[2];
sSrcPixMap.sRect.iRectWidth = pCurPicture->iWidthInPixel;
sSrcPixMap.sRect.iRectHeight = pCurPicture->iHeightInPixel;
sSrcPixMap.eFormat = VIDEO_FORMAT_I420;
sRefPixMap.pPixel[0] = pRefPicture->pData[0];
sRefPixMap.pPixel[1] = pRefPicture->pData[1];
sRefPixMap.pPixel[2] = pRefPicture->pData[2];
sRefPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sRefPixMap.iStride[0] = pRefPicture->iLineSize[0];
sRefPixMap.iStride[1] = pRefPicture->iLineSize[1];
sRefPixMap.iStride[2] = pRefPicture->iLineSize[2];
sRefPixMap.sRect.iRectWidth = pRefPicture->iWidthInPixel;
sRefPixMap.sRect.iRectHeight = pRefPicture->iHeightInPixel;
sRefPixMap.eFormat = VIDEO_FORMAT_I420;
BGDParam.pBackgroundMbFlag = pVaaInfo->pVaaBackgroundMbFlag;
BGDParam.pCalcRes = & (pVaaInfo->sVaaCalcInfo);
m_pInterfaceVp->Set (iMethodIdx, (void*)&BGDParam);
m_pInterfaceVp->Process (iMethodIdx, &sSrcPixMap, &sRefPixMap);
} else {
int32_t iPicWidthInMb = (pCurPicture->iWidthInPixel + 15) >> 4;
int32_t iPicHeightInMb = (pCurPicture->iHeightInPixel + 15) >> 4;
memset (pVaaInfo->pVaaBackgroundMbFlag, 0, iPicWidthInMb * iPicHeightInMb);
}
}
void CWelsPreProcess::AdaptiveQuantCalculation (SVAAFrameInfo* pVaaInfo, SPicture* pCurPicture, SPicture* pRefPicture) {
pVaaInfo->sAdaptiveQuantParam.pCalcResult = & (pVaaInfo->sVaaCalcInfo);
pVaaInfo->sAdaptiveQuantParam.iAverMotionTextureIndexToDeltaQp = 0;
{
int32_t iMethodIdx = METHOD_ADAPTIVE_QUANT;
SPixMap pSrc;
SPixMap pRef;
memset (&pSrc, 0, sizeof (pSrc));
memset (&pRef, 0, sizeof (pRef));
int32_t iRet = 0;
pSrc.pPixel[0] = pCurPicture->pData[0];
pSrc.iSizeInBits = g_kiPixMapSizeInBits;
pSrc.iStride[0] = pCurPicture->iLineSize[0];
pSrc.sRect.iRectWidth = pCurPicture->iWidthInPixel;
pSrc.sRect.iRectHeight = pCurPicture->iHeightInPixel;
pSrc.eFormat = VIDEO_FORMAT_I420;
pRef.pPixel[0] = pRefPicture->pData[0];
pRef.iSizeInBits = g_kiPixMapSizeInBits;
pRef.iStride[0] = pRefPicture->iLineSize[0];
pRef.sRect.iRectWidth = pRefPicture->iWidthInPixel;
pRef.sRect.iRectHeight = pRefPicture->iHeightInPixel;
pRef.eFormat = VIDEO_FORMAT_I420;
iRet = m_pInterfaceVp->Set (iMethodIdx, (void*) & (pVaaInfo->sAdaptiveQuantParam));
iRet = m_pInterfaceVp->Process (iMethodIdx, &pSrc, &pRef);
if (iRet == 0)
m_pInterfaceVp->Get (iMethodIdx, (void*) & (pVaaInfo->sAdaptiveQuantParam));
}
}
void CWelsPreProcess::SetRefMbType (sWelsEncCtx* pCtx, uint32_t** pRefMbTypeArray, int32_t iRefPicType) {
const uint8_t uiTid = pCtx->uiTemporalId;
const uint8_t uiDid = pCtx->uiDependencyId;
SRefList* pRefPicLlist = pCtx->ppRefPicListExt[uiDid];
SLTRState* pLtr = &pCtx->pLtr[uiDid];
uint8_t i = 0;
if (pCtx->pSvcParam->bEnableLongTermReference && pLtr->bReceivedT0LostFlag && uiTid == 0) {
for (i = 0; i < pRefPicLlist->uiLongRefCount; i++) {
SPicture* pRef = pRefPicLlist->pLongRefList[i];
if (pRef != NULL && pRef->uiRecieveConfirmed == 1/*RECIEVE_SUCCESS*/) {
*pRefMbTypeArray = pRef->uiRefMbType;
break;
}
}
} else {
for (i = 0; i < pRefPicLlist->uiShortRefCount; i++) {
SPicture* pRef = pRefPicLlist->pShortRefList[i];
if (pRef != NULL && pRef->bUsedAsRef && pRef->iFramePoc >= 0 && pRef->uiTemporalId <= uiTid) {
*pRefMbTypeArray = pRef->uiRefMbType;
break;
}
}
}
}
void CWelsPreProcess::AnalyzePictureComplexity (sWelsEncCtx* pCtx, SPicture* pCurPicture, SPicture* pRefPicture,
const int32_t kiDependencyId, const bool bCalculateBGD) {
SWelsSvcCodingParam* pSvcParam = pCtx->pSvcParam;
int32_t iComplexityAnalysisMode = 0;
if (pSvcParam->iRCMode == RC_OFF_MODE)
return;
if (pSvcParam->iUsageType == SCREEN_CONTENT_REAL_TIME) {
SVAAFrameInfoExt* pVaaExt = static_cast<SVAAFrameInfoExt*> (pCtx->pVaa);
SComplexityAnalysisScreenParam* sComplexityAnalysisParam = &pVaaExt->sComplexityScreenParam;
SWelsSvcRc* pWelsSvcRc = &pCtx->pWelsSvcRc[kiDependencyId];
if (pCtx->eSliceType == P_SLICE)
iComplexityAnalysisMode = GOM_SAD;
else if (pCtx->eSliceType == I_SLICE)
iComplexityAnalysisMode = GOM_VAR;
else
return;
memset (pWelsSvcRc->pGomForegroundBlockNum, 0, pWelsSvcRc->iGomSize * sizeof (int32_t));
memset (pWelsSvcRc->pCurrentFrameGomSad, 0, pWelsSvcRc->iGomSize * sizeof (int32_t));
sComplexityAnalysisParam->iFrameComplexity = 0;
sComplexityAnalysisParam->pGomComplexity = pWelsSvcRc->pCurrentFrameGomSad;
sComplexityAnalysisParam->iGomNumInFrame = pWelsSvcRc->iGomSize;
sComplexityAnalysisParam->iIdrFlag = (pCtx->eSliceType == I_SLICE);
sComplexityAnalysisParam->iMbRowInGom = GOM_H_SCC;
sComplexityAnalysisParam->sScrollResult.bScrollDetectFlag = false;
sComplexityAnalysisParam->sScrollResult.iScrollMvX = 0;
sComplexityAnalysisParam->sScrollResult.iScrollMvY = 0;
const int32_t iMethodIdx = METHOD_COMPLEXITY_ANALYSIS_SCREEN;
SPixMap sSrcPixMap;
SPixMap sRefPixMap;
memset (&sSrcPixMap, 0, sizeof (SPixMap));
memset (&sRefPixMap, 0, sizeof (SPixMap));
int32_t iRet = 0;
sSrcPixMap.pPixel[0] = pCurPicture->pData[0];
sSrcPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sSrcPixMap.iStride[0] = pCurPicture->iLineSize[0];
sSrcPixMap.sRect.iRectWidth = pCurPicture->iWidthInPixel;
sSrcPixMap.sRect.iRectHeight = pCurPicture->iHeightInPixel;
sSrcPixMap.eFormat = VIDEO_FORMAT_I420;
if (pRefPicture != NULL) {
sRefPixMap.pPixel[0] = pRefPicture->pData[0];
sRefPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sRefPixMap.iStride[0] = pRefPicture->iLineSize[0];
sRefPixMap.sRect.iRectWidth = pRefPicture->iWidthInPixel;
sRefPixMap.sRect.iRectHeight = pRefPicture->iHeightInPixel;
sRefPixMap.eFormat = VIDEO_FORMAT_I420;
}
iRet = m_pInterfaceVp->Set (iMethodIdx, (void*)sComplexityAnalysisParam);
iRet = m_pInterfaceVp->Process (iMethodIdx, &sSrcPixMap, &sRefPixMap);
if (iRet == 0)
m_pInterfaceVp->Get (iMethodIdx, (void*)sComplexityAnalysisParam);
} else {
SVAAFrameInfo* pVaaInfo = pCtx->pVaa;
SComplexityAnalysisParam* sComplexityAnalysisParam = & (pVaaInfo->sComplexityAnalysisParam);
SWelsSvcRc* SWelsSvcRc = &pCtx->pWelsSvcRc[kiDependencyId];
if (pSvcParam->iRCMode == RC_QUALITY_MODE && pCtx->eSliceType == P_SLICE) {
iComplexityAnalysisMode = FRAME_SAD;
} else if (pSvcParam->iRCMode >= RC_BITRATE_MODE && pCtx->eSliceType == P_SLICE) {
iComplexityAnalysisMode = GOM_SAD;
} else if (pSvcParam->iRCMode >= RC_BITRATE_MODE && pCtx->eSliceType == I_SLICE) {
iComplexityAnalysisMode = GOM_VAR;
} else {
return;
}
sComplexityAnalysisParam->iComplexityAnalysisMode = iComplexityAnalysisMode;
sComplexityAnalysisParam->pCalcResult = & (pVaaInfo->sVaaCalcInfo);
sComplexityAnalysisParam->pBackgroundMbFlag = pVaaInfo->pVaaBackgroundMbFlag;
SetRefMbType (pCtx, & (sComplexityAnalysisParam->uiRefMbType), pRefPicture->iPictureType);
sComplexityAnalysisParam->iCalcBgd = bCalculateBGD;
sComplexityAnalysisParam->iFrameComplexity = 0;
memset (SWelsSvcRc->pGomForegroundBlockNum, 0, SWelsSvcRc->iGomSize * sizeof (int32_t));
if (iComplexityAnalysisMode != FRAME_SAD)
memset (SWelsSvcRc->pCurrentFrameGomSad, 0, SWelsSvcRc->iGomSize * sizeof (int32_t));
sComplexityAnalysisParam->pGomComplexity = SWelsSvcRc->pCurrentFrameGomSad;
sComplexityAnalysisParam->pGomForegroundBlockNum = SWelsSvcRc->pGomForegroundBlockNum;
sComplexityAnalysisParam->iMbNumInGom = SWelsSvcRc->iNumberMbGom;
{
int32_t iMethodIdx = METHOD_COMPLEXITY_ANALYSIS;
SPixMap sSrcPixMap;
SPixMap sRefPixMap;
memset (&sSrcPixMap, 0, sizeof (SPixMap));
memset (&sRefPixMap, 0, sizeof (SPixMap));
int32_t iRet = 0;
sSrcPixMap.pPixel[0] = pCurPicture->pData[0];
sSrcPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sSrcPixMap.iStride[0] = pCurPicture->iLineSize[0];
sSrcPixMap.sRect.iRectWidth = pCurPicture->iWidthInPixel;
sSrcPixMap.sRect.iRectHeight = pCurPicture->iHeightInPixel;
sSrcPixMap.eFormat = VIDEO_FORMAT_I420;
sRefPixMap.pPixel[0] = pRefPicture->pData[0];
sRefPixMap.iSizeInBits = g_kiPixMapSizeInBits;
sRefPixMap.iStride[0] = pRefPicture->iLineSize[0];
sRefPixMap.sRect.iRectWidth = pRefPicture->iWidthInPixel;
sRefPixMap.sRect.iRectHeight = pRefPicture->iHeightInPixel;
sRefPixMap.eFormat = VIDEO_FORMAT_I420;
iRet = m_pInterfaceVp->Set (iMethodIdx, (void*)sComplexityAnalysisParam);
iRet = m_pInterfaceVp->Process (iMethodIdx, &sSrcPixMap, &sRefPixMap);
if (iRet == 0)
m_pInterfaceVp->Get (iMethodIdx, (void*)sComplexityAnalysisParam);
}
}
}
void CWelsPreProcess::InitPixMap (const SPicture* pPicture, SPixMap* pPixMap) {
pPixMap->pPixel[0] = pPicture->pData[0];
pPixMap->pPixel[1] = pPicture->pData[1];
pPixMap->pPixel[2] = pPicture->pData[2];
pPixMap->iSizeInBits = sizeof (uint8_t);
pPixMap->iStride[0] = pPicture->iLineSize[0];
pPixMap->iStride[1] = pPicture->iLineSize[1];
pPixMap->sRect.iRectWidth = pPicture->iWidthInPixel;
pPixMap->sRect.iRectHeight = pPicture->iHeightInPixel;
pPixMap->eFormat = VIDEO_FORMAT_I420;
}
void CWelsPreProcess::GetAvailableRefList (SPicture** pSrcPicList, uint8_t iCurTid, const int32_t iClosestLtrFrameNum,
SRefInfoParam* pAvailableRefList, int32_t& iAvailableRefNum, int32_t& iAvailableSceneRefNum) {
SWelsSvcCodingParam* pSvcParam = m_pEncCtx->pSvcParam;
const int32_t iSourcePicNum = pSvcParam->iNumRefFrame;
if (0 >= iSourcePicNum) {
iAvailableRefNum = 0;
iAvailableSceneRefNum = 0;
return ;
}
const bool bCurFrameMarkedAsSceneLtr = m_pEncCtx->bCurFrameMarkedAsSceneLtr;
SPicture* pRefPic = NULL;
uint8_t uiRefTid = 0;
bool bRefRealLtr = false;
iAvailableRefNum = 1; //zero is left for the closest frame
iAvailableSceneRefNum = 0;
//the saving order will be depend on pSrcPicList
//TODO: use a frame_idx to find the closer ref in time distance, and correctly sort the ref list
for (int32_t i = iSourcePicNum - 1; i >= 0; --i) {
pRefPic = pSrcPicList[i];
if (NULL == pRefPic || !pRefPic->bUsedAsRef || !pRefPic->bIsLongRef || (bCurFrameMarkedAsSceneLtr
&& (!pRefPic->bIsSceneLTR))) {
continue;
}
uiRefTid = pRefPic->uiTemporalId;
bRefRealLtr = pRefPic->bIsSceneLTR;
if (bRefRealLtr || (0 == iCurTid && 0 == uiRefTid) || (uiRefTid < iCurTid)) {
int32_t idx = (pRefPic->iLongTermPicNum == iClosestLtrFrameNum) ? (0) : (iAvailableRefNum++);
pAvailableRefList[idx].pRefPicture = pRefPic;
pAvailableRefList[idx].iSrcListIdx = i + 1; //in SrcList, the idx 0 is reserved for CurPic
iAvailableSceneRefNum += bRefRealLtr;
}
}
if (pAvailableRefList[0].pRefPicture == NULL) {
for (int32_t i = 1; i < iAvailableRefNum ; ++i) {
pAvailableRefList[i - 1].pRefPicture = pAvailableRefList[i].pRefPicture;
pAvailableRefList[i - 1].iSrcListIdx = pAvailableRefList[i].iSrcListIdx;
}
pAvailableRefList[iAvailableRefNum - 1].pRefPicture = NULL;
pAvailableRefList[iAvailableRefNum - 1].iSrcListIdx = 0;
--iAvailableRefNum;
}
}
void CWelsPreProcess::InitRefJudgement (SRefJudgement* pRefJudgement) {
pRefJudgement->iMinFrameComplexity = INT_MAX;
pRefJudgement->iMinFrameComplexity08 = INT_MAX;
pRefJudgement->iMinFrameComplexity11 = INT_MAX;
pRefJudgement->iMinFrameNumGap = INT_MAX;
pRefJudgement->iMinFrameQp = INT_MAX;
}
bool CWelsPreProcess::JudgeBestRef (SPicture* pRefPic, const SRefJudgement& sRefJudgement,
const int32_t iFrameComplexity, const bool bIsClosestLtrFrame) {
return (bIsClosestLtrFrame ? (iFrameComplexity < sRefJudgement.iMinFrameComplexity11) :
((iFrameComplexity < sRefJudgement.iMinFrameComplexity08) || ((iFrameComplexity <= sRefJudgement.iMinFrameComplexity11)
&& (pRefPic->iFrameAverageQp < sRefJudgement.iMinFrameQp))));
}
void CWelsPreProcess::SaveBestRefToJudgement (const int32_t iRefPictureAvQP, const int32_t iComplexity,
SRefJudgement* pRefJudgement) {
pRefJudgement->iMinFrameQp = iRefPictureAvQP;
pRefJudgement->iMinFrameComplexity = iComplexity;
pRefJudgement->iMinFrameComplexity08 = static_cast<int32_t> (iComplexity * 0.8);
pRefJudgement->iMinFrameComplexity11 = static_cast<int32_t> (iComplexity * 1.1);
}
void CWelsPreProcess::SaveBestRefToLocal (SRefInfoParam* pRefPicInfo, const SSceneChangeResult& sSceneChangeResult,
SRefInfoParam* pRefSaved) {
pRefSaved->iSrcListIdx = pRefPicInfo->iSrcListIdx;
pRefSaved->bSceneLtrFlag = pRefPicInfo->bSceneLtrFlag;
pRefSaved->pBestBlockStaticIdc = sSceneChangeResult.pStaticBlockIdc;
}
void CWelsPreProcess::SaveBestRefToVaa (SRefInfoParam& sRefSaved, SRefInfoParam* pVaaBestRef) {
(*pVaaBestRef) = sRefSaved;
}
ESceneChangeIdc CWelsPreProcess::DetectSceneChangeScreen (sWelsEncCtx* pCtx, SPicture* pCurPicture) {
#define STATIC_SCENE_MOTION_RATIO 0.01f
SWelsSvcCodingParam* pSvcParam = pCtx->pSvcParam;
SVAAFrameInfoExt* pVaaExt = static_cast<SVAAFrameInfoExt*> (pCtx->pVaa);
if (NULL == pCtx || NULL == pVaaExt || NULL == pCurPicture) {
return LARGE_CHANGED_SCENE;
}
const int32_t iTargetDid = pSvcParam->iSpatialLayerNum - 1;
if (0 != iTargetDid) {
return LARGE_CHANGED_SCENE;
}
ESceneChangeIdc iVaaFrameSceneChangeIdc = LARGE_CHANGED_SCENE;
SPicture** pSrcPicList = &m_pSpatialPic[iTargetDid][1];
if (NULL == pSrcPicList) {
return LARGE_CHANGED_SCENE;
}
SRefInfoParam sAvailableRefList[MAX_REF_PIC_COUNT] = { { 0 } };
int32_t iAvailableRefNum = 0;
int32_t iAvailableSceneRefNum = 0;
int32_t iSceneChangeMethodIdx = METHOD_SCENE_CHANGE_DETECTION_SCREEN;
SSceneChangeResult sSceneChangeResult = {SIMILAR_SCENE, 0, 0, NULL};
SPixMap sSrcMap = { { 0 } };
SPixMap sRefMap = { { 0 } };
SRefJudgement sLtrJudgement;
SRefJudgement sSceneLtrJudgement;
SRefInfoParam sLtrSaved = {0};
SRefInfoParam sSceneLtrSaved = {0};
int32_t iNumOfLargeChange = 0, iNumOfMediumChangeToLtr = 0;
bool bIsClosestLtrFrame = false;
int32_t ret = 1, iScdIdx = 0;
SPicture* pRefPic = NULL;
SRefInfoParam* pRefPicInfo = NULL;
uint8_t* pCurBlockStaticPointer = NULL;
SLogContext* pLogCtx = & (pCtx->sLogCtx);
const int32_t iNegligibleMotionBlocks = (static_cast<int32_t> ((pCurPicture->iWidthInPixel >> 3) *
(pCurPicture->iHeightInPixel >> 3) * STATIC_SCENE_MOTION_RATIO));
const uint8_t iCurTid = GetTemporalLevel (&pSvcParam->sDependencyLayers[m_pEncCtx->sSpatialIndexMap[0].iDid],
m_pEncCtx->iCodingIndex, pSvcParam->uiGopSize);
const int32_t iClosestLtrFrameNum = pCtx->pLtr[iTargetDid].iLastLtrIdx[iCurTid];//TBD
GetAvailableRefList (pSrcPicList, iCurTid, iClosestLtrFrameNum, &sAvailableRefList[0], iAvailableRefNum,
iAvailableSceneRefNum);
//after this build, pAvailableRefList[idx].iSrcListIdx is the idx of the ref in h->spatial_pic
if (0 == iAvailableRefNum) {
WelsLog (pLogCtx, WELS_LOG_ERROR, "SceneChangeDetect() iAvailableRefNum=0 but not I.\n");
return LARGE_CHANGED_SCENE;
}
InitPixMap (pCurPicture, &sSrcMap);
InitRefJudgement (&sLtrJudgement);
InitRefJudgement (&sSceneLtrJudgement);
for (iScdIdx = 0; iScdIdx < iAvailableRefNum; iScdIdx ++) {
pCurBlockStaticPointer = pVaaExt->pVaaBlockStaticIdc[iScdIdx];
sSceneChangeResult.eSceneChangeIdc = SIMILAR_SCENE;
sSceneChangeResult.pStaticBlockIdc = pCurBlockStaticPointer;
sSceneChangeResult.sScrollResult.bScrollDetectFlag = false;
pRefPicInfo = & (sAvailableRefList[iScdIdx]);
assert (NULL != pRefPicInfo);
pRefPic = pRefPicInfo->pRefPicture;
InitPixMap (pRefPic, &sRefMap);
bIsClosestLtrFrame = (pRefPic->iLongTermPicNum == iClosestLtrFrameNum);
if (0 == iScdIdx) {
int32_t ret = 1;
SScrollDetectionParam* pScrollDetectInfo = & (pVaaExt->sScrollDetectInfo);
memset (pScrollDetectInfo, 0, sizeof (SScrollDetectionParam));
int32_t iMethodIdx = METHOD_SCROLL_DETECTION;
m_pInterfaceVp->Set (iMethodIdx, (void*) (pScrollDetectInfo));
ret = m_pInterfaceVp->Process (iMethodIdx, &sSrcMap, &sRefMap);
if (ret == 0) {
m_pInterfaceVp->Get (iMethodIdx, (void*) (pScrollDetectInfo));
}
sSceneChangeResult.sScrollResult = pVaaExt->sScrollDetectInfo;
}
m_pInterfaceVp->Set (iSceneChangeMethodIdx, (void*) (&sSceneChangeResult));
ret = m_pInterfaceVp->Process (iSceneChangeMethodIdx, &sSrcMap, &sRefMap);
if (ret == 0) {
m_pInterfaceVp->Get (iSceneChangeMethodIdx, (void*)&sSceneChangeResult);
const int32_t iFrameComplexity = sSceneChangeResult.iFrameComplexity;
const int32_t iSceneDetectIdc = sSceneChangeResult.eSceneChangeIdc;
const int32_t iMotionBlockNum = sSceneChangeResult.iMotionBlockNum;
const bool bCurRefIsLtr = pRefPic->bIsSceneLTR;
const int32_t iRefPicAvQP = pRefPic->iFrameAverageQp;
//for scene change detection
iNumOfLargeChange += (static_cast<int32_t> (LARGE_CHANGED_SCENE == iSceneDetectIdc));
iNumOfMediumChangeToLtr += (static_cast<int32_t> ((bCurRefIsLtr) && (iSceneDetectIdc != SIMILAR_SCENE)));
//for reference selection
//this judge can only be saved when iAvailableRefNum==1, which is very limit
//when LTR is OFF, it can still judge from all available STR
if (JudgeBestRef (pRefPic, sLtrJudgement, iFrameComplexity, bIsClosestLtrFrame)) {
SaveBestRefToJudgement (iRefPicAvQP, iFrameComplexity, &sLtrJudgement);
SaveBestRefToLocal (pRefPicInfo, sSceneChangeResult, &sLtrSaved);
}
if (bCurRefIsLtr && JudgeBestRef (pRefPic, sSceneLtrJudgement, iFrameComplexity, bIsClosestLtrFrame)) {
SaveBestRefToJudgement (iRefPicAvQP, iFrameComplexity, &sSceneLtrJudgement);
SaveBestRefToLocal (pRefPicInfo, sSceneChangeResult, &sSceneLtrSaved);
}
if (iMotionBlockNum <= iNegligibleMotionBlocks) {
break;
}
}
}
if (iNumOfLargeChange == iAvailableRefNum) {
iVaaFrameSceneChangeIdc = LARGE_CHANGED_SCENE;
} else if ((iNumOfMediumChangeToLtr == iAvailableSceneRefNum) && (0 != iAvailableSceneRefNum)) {
iVaaFrameSceneChangeIdc = MEDIUM_CHANGED_SCENE;
} else {
iVaaFrameSceneChangeIdc = SIMILAR_SCENE;
}
WelsLog (pLogCtx, WELS_LOG_INFO, "iVaaFrameSceneChangeIdc = %d,codingIdx = %d\n", iVaaFrameSceneChangeIdc,
pCtx->iCodingIndex);
SaveBestRefToVaa (sLtrSaved, & (pVaaExt->sVaaStrBestRefCandidate[0]));
pVaaExt->pVaaBestBlockStaticIdc = sLtrSaved.pBestBlockStaticIdc;
if (0 == iAvailableSceneRefNum) {
SaveBestRefToVaa (sSceneLtrSaved, & (pVaaExt->sVaaStrBestRefCandidate[1]));
}
pVaaExt->iNumOfAvailableRef = 1;
return static_cast<ESceneChangeIdc> (iVaaFrameSceneChangeIdc);
}
int32_t CWelsPreProcess::GetRefFrameInfo (int32_t iRefIdx, SPicture*& pRefOri) {
const int32_t iTargetDid = m_pEncCtx->pSvcParam->iSpatialLayerNum - 1;
SVAAFrameInfoExt* pVaaExt = static_cast<SVAAFrameInfoExt*> (m_pEncCtx->pVaa);
SRefInfoParam* BestRefCandidateParam = & (pVaaExt->sVaaStrBestRefCandidate[iRefIdx]);
int32_t iLtrRefIdx = m_pSpatialPic[iTargetDid][BestRefCandidateParam->iSrcListIdx]->iLongTermPicNum;
pRefOri = m_pSpatialPic[iTargetDid][BestRefCandidateParam->iSrcListIdx];
return iLtrRefIdx;
}
void CWelsPreProcess::Padding (uint8_t* pSrcY, uint8_t* pSrcU, uint8_t* pSrcV, int32_t iStrideY, int32_t iStrideUV,
int32_t iActualWidth, int32_t iPaddingWidth, int32_t iActualHeight, int32_t iPaddingHeight) {
int32_t i;
if (iPaddingHeight > iActualHeight) {
for (i = iActualHeight; i < iPaddingHeight; i++) {
memset (pSrcY + i * iStrideY, 0, iActualWidth);
if (! (i & 1)) {
memset (pSrcU + i / 2 * iStrideUV, 0x80, iActualWidth / 2);
memset (pSrcV + i / 2 * iStrideUV, 0x80, iActualWidth / 2);
}
}
}
if (iPaddingWidth > iActualWidth) {
for (i = 0; i < iPaddingHeight; i++) {
memset (pSrcY + i * iStrideY + iActualWidth, 0, iPaddingWidth - iActualWidth);
if (! (i & 1)) {
memset (pSrcU + i / 2 * iStrideUV + iActualWidth / 2, 0x80, (iPaddingWidth - iActualWidth) / 2);
memset (pSrcV + i / 2 * iStrideUV + iActualWidth / 2, 0x80, (iPaddingWidth - iActualWidth) / 2);
}
}
}
}
//TODO: may opti later
//TODO: not use this func?
void* WelsMemcpy (void* dst, const void* kpSrc, uint32_t uiSize) {
return ::memcpy (dst, kpSrc, uiSize);
}
void* WelsMemset (void* p, int32_t val, uint32_t uiSize) {
return ::memset (p, val, uiSize);
}
//i420_to_i420_c
void WelsMoveMemory_c (uint8_t* pDstY, uint8_t* pDstU, uint8_t* pDstV, int32_t iDstStrideY, int32_t iDstStrideUV,
uint8_t* pSrcY, uint8_t* pSrcU, uint8_t* pSrcV, int32_t iSrcStrideY, int32_t iSrcStrideUV, int32_t iWidth,
int32_t iHeight) {
int32_t iWidth2 = iWidth >> 1;
int32_t iHeight2 = iHeight >> 1;
int32_t j;
for (j = iHeight; j; j--) {
WelsMemcpy (pDstY, pSrcY, iWidth);
pDstY += iDstStrideY;
pSrcY += iSrcStrideY;
}
for (j = iHeight2; j; j--) {
WelsMemcpy (pDstU, pSrcU, iWidth2);
WelsMemcpy (pDstV, pSrcV, iWidth2);
pDstU += iDstStrideUV;
pDstV += iDstStrideUV;
pSrcU += iSrcStrideUV;
pSrcV += iSrcStrideUV;
}
}
void CWelsPreProcess::WelsMoveMemoryWrapper (SWelsSvcCodingParam* pSvcParam, SPicture* pDstPic,
const SSourcePicture* kpSrc,
const int32_t kiTargetWidth, const int32_t kiTargetHeight) {
if (VIDEO_FORMAT_I420 != (kpSrc->iColorFormat & (~VIDEO_FORMAT_VFlip)))
return;
int32_t iSrcWidth = kpSrc->iPicWidth;
int32_t iSrcHeight = kpSrc->iPicHeight;
if (iSrcHeight > kiTargetHeight) iSrcHeight = kiTargetHeight;
if (iSrcWidth > kiTargetWidth) iSrcWidth = kiTargetWidth;
// copy from fr26 to fix the odd uiSize failed issue
if (iSrcWidth & 0x1) -- iSrcWidth;
if (iSrcHeight & 0x1) -- iSrcHeight;
const int32_t kiSrcTopOffsetY = pSvcParam->SUsedPicRect.iTop;
const int32_t kiSrcTopOffsetUV = (kiSrcTopOffsetY >> 1);
const int32_t kiSrcLeftOffsetY = pSvcParam->SUsedPicRect.iLeft;
const int32_t kiSrcLeftOffsetUV = (kiSrcLeftOffsetY >> 1);
int32_t iSrcOffset[3] = {0, 0, 0};
iSrcOffset[0] = kpSrc->iStride[0] * kiSrcTopOffsetY + kiSrcLeftOffsetY;
iSrcOffset[1] = kpSrc->iStride[1] * kiSrcTopOffsetUV + kiSrcLeftOffsetUV ;
iSrcOffset[2] = kpSrc->iStride[2] * kiSrcTopOffsetUV + kiSrcLeftOffsetUV;
uint8_t* pSrcY = kpSrc->pData[0] + iSrcOffset[0];
uint8_t* pSrcU = kpSrc->pData[1] + iSrcOffset[1];
uint8_t* pSrcV = kpSrc->pData[2] + iSrcOffset[2];
const int32_t kiSrcStrideY = kpSrc->iStride[0];
const int32_t kiSrcStrideUV = kpSrc->iStride[1];
uint8_t* pDstY = pDstPic->pData[0];
uint8_t* pDstU = pDstPic->pData[1];
uint8_t* pDstV = pDstPic->pData[2];
const int32_t kiDstStrideY = pDstPic->iLineSize[0];
const int32_t kiDstStrideUV = pDstPic->iLineSize[1];
if (pSrcY) {
if (iSrcWidth <= 0 || iSrcWidth > MAX_WIDTH || iSrcHeight <= 0 || iSrcHeight > MAX_HEIGHT)
return;
if (kiSrcTopOffsetY >= iSrcHeight || kiSrcLeftOffsetY >= iSrcWidth || iSrcWidth > kiSrcStrideY)
return;
}
if (pDstY) {
if (kiTargetWidth <= 0 || kiTargetWidth > MAX_WIDTH || kiTargetHeight <= 0 || kiTargetHeight > MAX_HEIGHT)
return;
if (kiTargetWidth > kiDstStrideY)
return;
}
if (pSrcY == NULL || pSrcU == NULL || pSrcV == NULL || pDstY == NULL || pDstU == NULL || pDstV == NULL
|| (iSrcWidth & 1) || (iSrcHeight & 1)) {
} else {
//i420_to_i420_c
WelsMoveMemory_c (pDstY, pDstU, pDstV, kiDstStrideY, kiDstStrideUV,
pSrcY, pSrcU, pSrcV, kiSrcStrideY, kiSrcStrideUV, iSrcWidth, iSrcHeight);
//in VP Process
if (kiTargetWidth > iSrcWidth || kiTargetHeight > iSrcHeight) {
Padding (pDstY, pDstU, pDstV, kiDstStrideY, kiDstStrideUV, iSrcWidth, kiTargetWidth, iSrcHeight, kiTargetHeight);
}
}
}
//*********************************************************************************************************/
} // namespace WelsSVCEnc