ref: a1e01544b34df4283f01b42b010a20925925aea2
dir: /codec/encoder/core/src/encoder.cpp/
/*!
* \copy
* Copyright (c) 2009-2013, 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.
*
*
* \file encoder.c
*
* \brief core encoder
*
* \date 5/14/2009 Created
*
*************************************************************************************
*/
#include "encoder.h"
#include "cpu_core.h"
#include "decode_mb_aux.h"
#include "get_intra_predictor.h"
#include "deblocking.h"
#include "ref_list_mgr_svc.h"
#include "mc.h"
#include "paraset_strategy.h"
#include "sample.h"
#include "svc_enc_golomb.h"
#include "svc_base_layer_md.h"
#include "svc_mode_decision.h"
#include "set_mb_syn_cavlc.h"
#include "crt_util_safe_x.h" // Safe CRT routines like utils for cross_platforms
#include "slice_multi_threading.h"
// global function pointers definition
namespace WelsEnc {
/* Motion compensation */
/*!
* \brief initialize source picture body
* \param pSrc SSourcePicture*
* \param csp internal csp format
* \param iWidth widht of picture in pixels
* \param iHeight iHeight of picture in pixels
* \return successful - 0; otherwise none 0 for failed
*/
int32_t InitPic (const void* kpSrc, const int32_t kiColorspace, const int32_t kiWidth, const int32_t kiHeight) {
SSourcePicture* pSrcPic = (SSourcePicture*)kpSrc;
if (NULL == pSrcPic || kiWidth == 0 || kiHeight == 0)
return 1;
pSrcPic->iColorFormat = kiColorspace;
pSrcPic->iPicWidth = kiWidth;
pSrcPic->iPicHeight = kiHeight;
//currently encoder only supports videoFormatI420.
if ((kiColorspace & (~videoFormatVFlip)) != videoFormatI420)
return 2;
switch (kiColorspace & (~videoFormatVFlip)) {
case videoFormatI420:
case videoFormatYV12:
pSrcPic->pData[0] = NULL;
pSrcPic->pData[1] = NULL;
pSrcPic->pData[2] = NULL;
pSrcPic->pData[3] = NULL;
pSrcPic->iStride[0] = kiWidth;
pSrcPic->iStride[2] = pSrcPic->iStride[1] = kiWidth >> 1;
pSrcPic->iStride[3] = 0;
break;
case videoFormatYUY2:
case videoFormatYVYU:
case videoFormatUYVY:
pSrcPic->pData[0] = NULL;
pSrcPic->pData[1] = NULL;
pSrcPic->pData[2] = NULL;
pSrcPic->pData[3] = NULL;
pSrcPic->iStride[0] = CALC_BI_STRIDE (kiWidth, 16);
pSrcPic->iStride[3] = pSrcPic->iStride[2] = pSrcPic->iStride[1] = 0;
break;
case videoFormatRGB:
case videoFormatBGR:
pSrcPic->pData[0] = NULL;
pSrcPic->pData[1] = NULL;
pSrcPic->pData[2] = NULL;
pSrcPic->pData[3] = NULL;
pSrcPic->iStride[0] = CALC_BI_STRIDE (kiWidth, 24);
pSrcPic->iStride[3] = pSrcPic->iStride[2] = pSrcPic->iStride[1] = 0;
if (kiColorspace & videoFormatVFlip)
pSrcPic->iColorFormat = kiColorspace & (~videoFormatVFlip);
else
pSrcPic->iColorFormat = kiColorspace | videoFormatVFlip;
break;
case videoFormatBGRA:
case videoFormatRGBA:
case videoFormatARGB:
case videoFormatABGR:
pSrcPic->pData[0] = NULL;
pSrcPic->pData[1] = NULL;
pSrcPic->pData[2] = NULL;
pSrcPic->pData[3] = NULL;
pSrcPic->iStride[0] = kiWidth << 2;
pSrcPic->iStride[3] = pSrcPic->iStride[2] = pSrcPic->iStride[1] = 0;
if (kiColorspace & videoFormatVFlip)
pSrcPic->iColorFormat = kiColorspace & (~videoFormatVFlip);
else
pSrcPic->iColorFormat = kiColorspace | videoFormatVFlip;
break;
default:
return 2; // any else?
}
return 0;
}
void WelsInitBGDFunc (SWelsFuncPtrList* pFuncList, const bool kbEnableBackgroundDetection) {
if (kbEnableBackgroundDetection) {
pFuncList->pfInterMdBackgroundDecision = WelsMdInterJudgeBGDPskip;
pFuncList->pfMdBackgroundInfoUpdate = WelsMdUpdateBGDInfo;
} else {
pFuncList->pfInterMdBackgroundDecision = WelsMdInterJudgeBGDPskipFalse;
pFuncList->pfMdBackgroundInfoUpdate = WelsMdUpdateBGDInfoNULL;
}
}
/*!
* \brief initialize function pointers that potentially used in Wels encoding
* \param pEncCtx sWelsEncCtx*
* \return successful - 0; otherwise none 0 for failed
*/
int32_t InitFunctionPointers (sWelsEncCtx* pEncCtx, SWelsSvcCodingParam* pParam, uint32_t uiCpuFlag) {
int32_t iReturn = ENC_RETURN_SUCCESS;
SWelsFuncPtrList* pFuncList = pEncCtx->pFuncList;
bool bScreenContent = (SCREEN_CONTENT_REAL_TIME == pParam->iUsageType);
/* Functionality utilization of CPU instructions dependency */
pFuncList->pfSetMemZeroSize8 = WelsSetMemZero_c; // confirmed_safe_unsafe_usage
pFuncList->pfSetMemZeroSize64Aligned16 = WelsSetMemZero_c; // confirmed_safe_unsafe_usage
pFuncList->pfSetMemZeroSize64 = WelsSetMemZero_c; // confirmed_safe_unsafe_usage
#if defined(X86_ASM)
if (uiCpuFlag & WELS_CPU_MMXEXT) {
pFuncList->pfSetMemZeroSize8 = WelsSetMemZeroSize8_mmx; // confirmed_safe_unsafe_usage
pFuncList->pfSetMemZeroSize64Aligned16 = WelsSetMemZeroSize64_mmx; // confirmed_safe_unsafe_usage
pFuncList->pfSetMemZeroSize64 = WelsSetMemZeroSize64_mmx; // confirmed_safe_unsafe_usage
}
if (uiCpuFlag & WELS_CPU_SSE2) {
pFuncList->pfSetMemZeroSize64Aligned16 = WelsSetMemZeroAligned64_sse2; // confirmed_safe_unsafe_usage
}
#endif//X86_ASM
#if defined(HAVE_NEON)
if (uiCpuFlag & WELS_CPU_NEON) {
pFuncList->pfSetMemZeroSize8 = WelsSetMemZero_neon;
pFuncList->pfSetMemZeroSize64Aligned16 = WelsSetMemZero_neon;
pFuncList->pfSetMemZeroSize64 = WelsSetMemZero_neon;
}
#endif
#if defined(HAVE_NEON_AARCH64)
if (uiCpuFlag & WELS_CPU_NEON) {
pFuncList->pfSetMemZeroSize8 = WelsSetMemZero_AArch64_neon;
pFuncList->pfSetMemZeroSize64Aligned16 = WelsSetMemZero_AArch64_neon;
pFuncList->pfSetMemZeroSize64 = WelsSetMemZero_AArch64_neon;
}
#endif
InitExpandPictureFunc (& (pFuncList->sExpandPicFunc), uiCpuFlag);
/* Intra_Prediction_fn*/
WelsInitIntraPredFuncs (pFuncList, uiCpuFlag);
/* ME func */
WelsInitMeFunc (pFuncList, uiCpuFlag, bScreenContent);
/* sad, satd, average */
WelsInitSampleSadFunc (pFuncList, uiCpuFlag);
//
WelsInitBGDFunc (pFuncList, pParam->bEnableBackgroundDetection);
WelsInitSCDPskipFunc (pFuncList, bScreenContent && (pParam->bEnableSceneChangeDetect));
// for pfGetVarianceFromIntraVaa function ptr adaptive by CPU features, 6/7/2010
InitIntraAnalysisVaaInfo (pFuncList, uiCpuFlag);
/* Motion compensation */
/*init pixel average function*/
/*get one column or row pixel when refinement*/
InitMcFunc (&pFuncList->sMcFuncs, uiCpuFlag);
InitCoeffFunc (pFuncList, uiCpuFlag, pParam->iEntropyCodingModeFlag);
WelsInitEncodingFuncs (pFuncList, uiCpuFlag);
WelsInitReconstructionFuncs (pFuncList, uiCpuFlag);
DeblockingInit (&pFuncList->pfDeblocking, uiCpuFlag);
WelsBlockFuncInit (&pFuncList->pfSetNZCZero, uiCpuFlag);
InitFillNeighborCacheInterFunc (pFuncList, pParam->bEnableBackgroundDetection);
pFuncList->pParametersetStrategy = IWelsParametersetStrategy::CreateParametersetStrategy (pParam->eSpsPpsIdStrategy,
pParam->bSimulcastAVC, pParam->iSpatialLayerNum);
WELS_VERIFY_RETURN_IF (ENC_RETURN_MEMALLOCERR, (NULL == pFuncList->pParametersetStrategy))
return iReturn;
}
void UpdateFrameNum (sWelsEncCtx* pEncCtx, const int32_t kiDidx) {
SSpatialLayerInternal* pParamInternal = &pEncCtx->pSvcParam->sDependencyLayers[kiDidx];
bool bNeedFrameNumIncreasing = false;
if (NRI_PRI_LOWEST != pEncCtx->eLastNalPriority[kiDidx]) {
bNeedFrameNumIncreasing = true;
}
if (bNeedFrameNumIncreasing) {
if (pParamInternal->iFrameNum < (1 << pEncCtx->pSps->uiLog2MaxFrameNum) - 1)
++ pParamInternal->iFrameNum;
else
pParamInternal->iFrameNum = 0; // if iFrameNum overflow
}
pEncCtx->eLastNalPriority[kiDidx] = NRI_PRI_LOWEST;
}
void LoadBackFrameNum (sWelsEncCtx* pEncCtx, const int32_t kiDidx) {
SSpatialLayerInternal* pParamInternal = &pEncCtx->pSvcParam->sDependencyLayers[kiDidx];
bool bNeedFrameNumIncreasing = false;
if (NRI_PRI_LOWEST != pEncCtx->eLastNalPriority[kiDidx]) {
bNeedFrameNumIncreasing = true;
}
if (bNeedFrameNumIncreasing) {
if (pParamInternal->iFrameNum != 0) {
pParamInternal->iFrameNum --;
} else {
pParamInternal->iFrameNum = (1 << pEncCtx->pSps->uiLog2MaxFrameNum) - 1;
}
}
}
void InitBitStream (sWelsEncCtx* pEncCtx) {
// for bitstream writing
pEncCtx->iPosBsBuffer = 0; // reset bs pBuffer position
pEncCtx->pOut->iNalIndex = 0; // reset NAL index
pEncCtx->pOut->iLayerBsIndex = 0; // reset index of Layer Bs
InitBits (&pEncCtx->pOut->sBsWrite, pEncCtx->pOut->pBsBuffer, pEncCtx->pOut->uiSize);
}
/*!
* \brief initialize frame coding
*/
void InitFrameCoding (sWelsEncCtx* pEncCtx, const EVideoFrameType keFrameType, const int32_t kiDidx) {
SSpatialLayerInternal* pParamInternal = &pEncCtx->pSvcParam->sDependencyLayers[kiDidx];
if (keFrameType == videoFrameTypeP) {
++pParamInternal->iFrameIndex;
if (pParamInternal->iPOC < (1 << pEncCtx->pSps->iLog2MaxPocLsb) -
2) // if iPOC type is no 0, this need be modification
pParamInternal->iPOC += 2; // for POC type 0
else
pParamInternal->iPOC = 0;
UpdateFrameNum (pEncCtx, kiDidx);
pEncCtx->eNalType = NAL_UNIT_CODED_SLICE;
pEncCtx->eSliceType = P_SLICE;
pEncCtx->eNalPriority = NRI_PRI_HIGH;
} else if (keFrameType == videoFrameTypeIDR) {
pParamInternal->iFrameNum = 0;
pParamInternal->iPOC = 0;
pParamInternal->bEncCurFrmAsIdrFlag = false;
pParamInternal->iFrameIndex = 0;
pEncCtx->eNalType = NAL_UNIT_CODED_SLICE_IDR;
pEncCtx->eSliceType = I_SLICE;
pEncCtx->eNalPriority = NRI_PRI_HIGHEST;
pParamInternal->iCodingIndex = 0;
// reset_ref_list
// rc_init_gop
} else if (keFrameType == videoFrameTypeI) {
if (pParamInternal->iPOC < (1 << pEncCtx->pSps->iLog2MaxPocLsb) -
2) // if iPOC type is no 0, this need be modification
pParamInternal->iPOC += 2; // for POC type 0
else
pParamInternal->iPOC = 0;
UpdateFrameNum (pEncCtx, kiDidx);
pEncCtx->eNalType = NAL_UNIT_CODED_SLICE;
pEncCtx->eSliceType = I_SLICE;
pEncCtx->eNalPriority = NRI_PRI_HIGHEST;
// rc_init_gop
} else { // B pictures are not supported now, any else?
assert (0);
}
#if defined(STAT_OUTPUT)
memset (&pEncCtx->sPerInfo, 0, sizeof (SStatSliceInfo));
#endif//FRAME_INFO_OUTPUT
}
EVideoFrameType DecideFrameType (sWelsEncCtx* pEncCtx, const int8_t kiSpatialNum, const int32_t kiDidx,
bool bSkipFrameFlag) {
SWelsSvcCodingParam* pSvcParam = pEncCtx->pSvcParam;
SSpatialLayerInternal* pParamInternal = &pEncCtx->pSvcParam->sDependencyLayers[kiDidx];
EVideoFrameType iFrameType = videoFrameTypeInvalid;
bool bSceneChangeFlag = false;
if (pSvcParam->iUsageType == SCREEN_CONTENT_REAL_TIME) {
if ((!pSvcParam->bEnableSceneChangeDetect) || pEncCtx->pVaa->bIdrPeriodFlag ||
(kiSpatialNum < pSvcParam->iSpatialLayerNum)) {
bSceneChangeFlag = false;
} else {
bSceneChangeFlag = pEncCtx->pVaa->bSceneChangeFlag;
}
if (pEncCtx->pVaa->bIdrPeriodFlag || pParamInternal->bEncCurFrmAsIdrFlag || (!pSvcParam->bEnableLongTermReference
&& bSceneChangeFlag && !bSkipFrameFlag)) {
iFrameType = videoFrameTypeIDR;
} else if (pSvcParam->bEnableLongTermReference && (bSceneChangeFlag
|| pEncCtx->pVaa->eSceneChangeIdc == LARGE_CHANGED_SCENE)) {
int iActualLtrcount = 0;
SPicture** pLongTermRefList = pEncCtx->ppRefPicListExt[0]->pLongRefList;
for (int i = 0; i < pSvcParam->iLTRRefNum; ++i) {
if (NULL != pLongTermRefList[i] && pLongTermRefList[i]->bUsedAsRef && pLongTermRefList[i]->bIsLongRef
&& pLongTermRefList[i]->bIsSceneLTR) {
++iActualLtrcount;
}
}
if (iActualLtrcount == pSvcParam->iLTRRefNum && bSceneChangeFlag) {
iFrameType = videoFrameTypeIDR;
} else {
iFrameType = videoFrameTypeP;
pEncCtx->bCurFrameMarkedAsSceneLtr = true;
}
} else {
iFrameType = videoFrameTypeP;
}
if (videoFrameTypeP == iFrameType && bSkipFrameFlag) {
iFrameType = videoFrameTypeSkip;
} else if (videoFrameTypeIDR == iFrameType) {
pParamInternal->iCodingIndex = 0;
pEncCtx->bCurFrameMarkedAsSceneLtr = true;
}
} else {
// perform scene change detection
if ((!pSvcParam->bEnableSceneChangeDetect) || pEncCtx->pVaa->bIdrPeriodFlag ||
(kiSpatialNum < pSvcParam->iSpatialLayerNum)
|| (pParamInternal->iFrameIndex < (VGOP_SIZE << 1))) { // avoid too frequent I frame coding, rc control
bSceneChangeFlag = false;
} else {
bSceneChangeFlag = pEncCtx->pVaa->bSceneChangeFlag;
}
//scene_changed_flag: RC enable && iSpatialNum == pSvcParam->iSpatialLayerNum
//bIdrPeriodFlag: RC disable || iSpatialNum != pSvcParam->iSpatialLayerNum
//pEncCtx->bEncCurFrmAsIdrFlag: 1. first frame should be IDR; 2. idr pause; 3. idr request
iFrameType = (pEncCtx->pVaa->bIdrPeriodFlag || bSceneChangeFlag
|| pParamInternal->bEncCurFrmAsIdrFlag) ? videoFrameTypeIDR : videoFrameTypeP;
if ( videoFrameTypeIDR == iFrameType ) {
WelsLog (& (pEncCtx->sLogCtx), WELS_LOG_DEBUG,
"encoding videoFrameTypeIDR due to ( bIdrPeriodFlag %d, bSceneChangeFlag %d, bEncCurFrmAsIdrFlag %d )",
pEncCtx->pVaa->bIdrPeriodFlag,
bSceneChangeFlag,
pParamInternal->bEncCurFrmAsIdrFlag);
}
if (videoFrameTypeP == iFrameType && bSkipFrameFlag) { // for frame skip, 1/5/2010
iFrameType = videoFrameTypeSkip;
} else if (videoFrameTypeIDR == iFrameType) {
pParamInternal->iCodingIndex = 0;
}
}
return iFrameType;
}
/*!
* \brief Dump reconstruction for dependency layer
*/
extern "C" void DumpDependencyRec (SPicture* pCurPicture, const char* kpFileName, const int8_t kiDid, bool bAppend,
SDqLayer* pDqLayer, bool bSimulCastAVC) {
WelsFileHandle* pDumpRecFile = NULL;
int32_t iWrittenSize = 0;
const char* openMode = bAppend ? "ab" : "wb";
SWelsSPS* pSpsTmp = NULL;
if (bSimulCastAVC || (kiDid == BASE_DEPENDENCY_ID)) {
pSpsTmp = pDqLayer->sLayerInfo.pSpsP;
} else {
pSpsTmp = & (pDqLayer->sLayerInfo.pSubsetSpsP->pSps);
}
bool bFrameCroppingFlag = pSpsTmp->bFrameCroppingFlag;
SCropOffset* pFrameCrop = &pSpsTmp->sFrameCrop;
if (NULL == pCurPicture || NULL == kpFileName || kiDid >= MAX_DEPENDENCY_LAYER)
return;
if (strlen (kpFileName) > 0) // confirmed_safe_unsafe_usage
pDumpRecFile = WelsFopen (kpFileName, openMode);
else {
char sDependencyRecFileName[16] = {0};
WelsSnprintf (sDependencyRecFileName, 16, "rec%d.yuv", kiDid); // confirmed_safe_unsafe_usage
pDumpRecFile = WelsFopen (sDependencyRecFileName, openMode);
}
if (NULL != pDumpRecFile && bAppend)
WelsFseek (pDumpRecFile, 0, SEEK_END);
if (NULL != pDumpRecFile) {
int32_t i = 0;
int32_t j = 0;
const int32_t kiStrideY = pCurPicture->iLineSize[0];
const int32_t kiLumaWidth = bFrameCroppingFlag ? (pCurPicture->iWidthInPixel - ((pFrameCrop->iCropLeft +
pFrameCrop->iCropRight) << 1)) : pCurPicture->iWidthInPixel;
const int32_t kiLumaHeight = bFrameCroppingFlag ? (pCurPicture->iHeightInPixel - ((pFrameCrop->iCropTop +
pFrameCrop->iCropBottom) << 1)) : pCurPicture->iHeightInPixel;
const int32_t kiChromaWidth = kiLumaWidth >> 1;
const int32_t kiChromaHeight = kiLumaHeight >> 1;
uint8_t* pSrc = NULL;
pSrc = bFrameCroppingFlag ? (pCurPicture->pData[0] + kiStrideY * (pFrameCrop->iCropTop << 1) +
(pFrameCrop->iCropLeft << 1)) : pCurPicture->pData[0];
for (j = 0; j < kiLumaHeight; ++ j) {
iWrittenSize = WelsFwrite (pSrc + j * kiStrideY, 1, kiLumaWidth, pDumpRecFile);
assert (iWrittenSize == kiLumaWidth);
if (iWrittenSize < kiLumaWidth) {
assert (0); // make no sense for us if writing failed
WelsFclose (pDumpRecFile);
return;
}
}
for (i = 1; i < I420_PLANES; ++ i) {
const int32_t kiStrideUV = pCurPicture->iLineSize[i];
pSrc = bFrameCroppingFlag ? (pCurPicture->pData[i] + kiStrideUV * pFrameCrop->iCropTop + pFrameCrop->iCropLeft) :
pCurPicture->pData[i];
for (j = 0; j < kiChromaHeight; ++ j) {
iWrittenSize = WelsFwrite (pSrc + j * kiStrideUV, 1, kiChromaWidth, pDumpRecFile);
assert (iWrittenSize == kiChromaWidth);
if (iWrittenSize < kiChromaWidth) {
assert (0); // make no sense for us if writing failed
WelsFclose (pDumpRecFile);
return;
}
}
}
WelsFclose (pDumpRecFile);
pDumpRecFile = NULL;
}
}
/*!
* \brief Dump the reconstruction pictures
*/
void DumpRecFrame (SPicture* pCurPicture, const char* kpFileName, const int8_t kiDid, bool bAppend,
SDqLayer* pDqLayer) {
WelsFileHandle* pDumpRecFile = NULL;
SWelsSPS* pSpsTmp = (kiDid > BASE_DEPENDENCY_ID) ? & (pDqLayer->sLayerInfo.pSubsetSpsP->pSps) :
pDqLayer->sLayerInfo.pSpsP;
bool bFrameCroppingFlag = pSpsTmp->bFrameCroppingFlag;
SCropOffset* pFrameCrop = &pSpsTmp->sFrameCrop;
int32_t iWrittenSize = 0;
const char* openMode = bAppend ? "ab" : "wb";
if (NULL == pCurPicture || NULL == kpFileName)
return;
if (strlen (kpFileName) > 0) { // confirmed_safe_unsafe_usage
pDumpRecFile = WelsFopen (kpFileName, openMode);
} else {
pDumpRecFile = WelsFopen ("rec.yuv", openMode);
}
if (NULL != pDumpRecFile && bAppend)
WelsFseek (pDumpRecFile, 0, SEEK_END);
if (NULL != pDumpRecFile) {
int32_t i = 0;
int32_t j = 0;
const int32_t kiStrideY = pCurPicture->iLineSize[0];
const int32_t kiLumaWidth = bFrameCroppingFlag ? (pCurPicture->iWidthInPixel - ((pFrameCrop->iCropLeft +
pFrameCrop->iCropRight) << 1)) : pCurPicture->iWidthInPixel;
const int32_t kiLumaHeight = bFrameCroppingFlag ? (pCurPicture->iHeightInPixel - ((pFrameCrop->iCropTop +
pFrameCrop->iCropBottom) << 1)) : pCurPicture->iHeightInPixel;
const int32_t kiChromaWidth = kiLumaWidth >> 1;
const int32_t kiChromaHeight = kiLumaHeight >> 1;
uint8_t* pSrc = NULL;
pSrc = bFrameCroppingFlag ? (pCurPicture->pData[0] + kiStrideY * (pFrameCrop->iCropTop << 1) +
(pFrameCrop->iCropLeft << 1)) : pCurPicture->pData[0];
for (j = 0; j < kiLumaHeight; ++ j) {
iWrittenSize = WelsFwrite (pSrc + j * kiStrideY, 1, kiLumaWidth, pDumpRecFile);
assert (iWrittenSize == kiLumaWidth);
if (iWrittenSize < kiLumaWidth) {
assert (0); // make no sense for us if writing failed
WelsFclose (pDumpRecFile);
return;
}
}
for (i = 1; i < I420_PLANES; ++ i) {
const int32_t kiStrideUV = pCurPicture->iLineSize[i];
pSrc = bFrameCroppingFlag ? (pCurPicture->pData[i] + kiStrideUV * pFrameCrop->iCropTop + pFrameCrop->iCropLeft) :
pCurPicture->pData[i];
for (j = 0; j < kiChromaHeight; ++ j) {
iWrittenSize = WelsFwrite (pSrc + j * kiStrideUV, 1, kiChromaWidth, pDumpRecFile);
assert (iWrittenSize == kiChromaWidth);
if (iWrittenSize < kiChromaWidth) {
assert (0); // make no sense for us if writing failed
WelsFclose (pDumpRecFile);
return;
}
}
}
WelsFclose (pDumpRecFile);
pDumpRecFile = NULL;
}
}
/***********************************************************************************/
void WelsSetMemZero_c (void* pDst, int32_t iSize) { // confirmed_safe_unsafe_usage
memset (pDst, 0, iSize);
}
}