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Merge pull request #549 from lyao2/rc_tune

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RC LOWBR mode merge
This commit is contained in:
Licai Guo 2014-03-21 09:15:18 +08:00
commit 7a29b1f55a
5 changed files with 70 additions and 24 deletions
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14
codec/encoder/core/inc/param_svc.h
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@ -252,13 +252,8 @@ int32_t ParamBaseTranscode (const SEncParamBase& pCodingParam, const bool kbEnab
SUsedPicRect.iWidth = ((iPicWidth >> 1) << 1);
SUsedPicRect.iHeight = ((iPicHeight >> 1) << 1);
bEnableRc = kbEnableRc;
if (pCodingParam.iRCMode != RC_MODE0 && pCodingParam.iRCMode != RC_MODE1)
iRCMode = RC_MODE1;
else
iRCMode = pCodingParam.iRCMode; // rc mode
bEnableRc = kbEnableRc;
iRCMode = pCodingParam.iRCMode; // rc mode
int8_t iIdxSpatial = 0;
uint8_t uiProfileIdc = PRO_BASELINE;
@ -332,10 +327,7 @@ int32_t ParamTranscode (const SEncParamExt& pCodingParam) {
/* Rate Control */
bEnableRc = pCodingParam.bEnableRc;
if (pCodingParam.iRCMode != RC_MODE0 && pCodingParam.iRCMode != RC_MODE1)
iRCMode = RC_MODE1;
else
iRCMode = pCodingParam.iRCMode; // rc mode
iRCMode = pCodingParam.iRCMode; // rc mode
iPaddingFlag = pCodingParam.iPaddingFlag;
iTargetBitrate = pCodingParam.iTargetBitrate; // target bitrate

17
codec/encoder/core/inc/rc.h
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@ -56,10 +56,17 @@ namespace WelsSVCEnc {
#define WELS_RC_GOM 1
typedef enum {
RC_MODE0, //Quality mode
RC_MODE1, //Bitrate mode
RC_QUALITY_MODE, //Quality mode
RC_BITRATE_MODE, //Bitrate mode
RC_LOW_BW_MODE, //bitrate limited mode
} RC_MODES;
enum{
BITS_NORMAL,
BITS_LIMITED,
BITS_EXCEEDED,
};
enum {
//virtual gop size
VGOP_SIZE = 8,
@ -67,6 +74,7 @@ enum {
//qp information
GOM_MIN_QP_MODE = 12,
GOM_MAX_QP_MODE = 36,
MAX_LOW_BR_QP = 42,
MIN_IDR_QP = 26,
MAX_IDR_QP = 32,
DELTA_QP = 2,
@ -160,6 +168,7 @@ typedef struct TagWelsRc {
// bits allocation and status
int32_t iRemainingBits;
int32_t iTargetBits;
int32_t iCurrentBitsLevel;//0:normal; 1:limited; 2:exceeded.
int32_t iIdrNum;
int32_t iIntraComplexity;
@ -170,14 +179,14 @@ typedef struct TagWelsRc {
int32_t iFrameDqBits;
double* pGomComplexity;
int32_t* pGomForegroundBlockNum;
int32_t* pGomForegroundBlockNum;
int32_t* pCurrentFrameGomSad;
int32_t* pGomCost;
int32_t iAverageFrameQp;
int32_t iNumberMbFrame;
int32_t iNumberMbGom;
int32_t iSliceNum;
int32_t iSliceNum;
int32_t iGomSize;
int32_t iSkipFrameNum;

53
codec/encoder/core/src/ratectl.cpp
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@ -429,7 +429,38 @@ void RcCalculatePictureQp (sWelsEncCtx* pEncCtx) {
if (0 == pTOverRc->iPFrameNum) {
iLumaQp = pWelsSvcRc->iInitialQp;
} else {
}
else if (pWelsSvcRc->iCurrentBitsLevel==BITS_EXCEEDED)
{
iLumaQp = MAX_LOW_BR_QP;
//limit QP
int32_t iLastIdxCodecInVGop = pWelsSvcRc->iFrameCodedInVGop - 1;
if (iLastIdxCodecInVGop < 0)
iLastIdxCodecInVGop += VGOP_SIZE;
int32_t iTlLast = pWelsSvcRc->iTlOfFrames[iLastIdxCodecInVGop];
int32_t iDeltaQpTemporal = iTl - iTlLast;
if (0 == iTlLast && iTl > 0)
iDeltaQpTemporal += 3;
else if (0 == iTl && iTlLast > 0)
iDeltaQpTemporal -= 3;
iLumaQp = WELS_CLIP3 (iLumaQp,
pWelsSvcRc->iLastCalculatedQScale - pWelsSvcRc->iFrameDeltaQpLower + iDeltaQpTemporal,
pWelsSvcRc->iLastCalculatedQScale + pWelsSvcRc->iFrameDeltaQpUpper + iDeltaQpTemporal);
iLumaQp = WELS_CLIP3 (iLumaQp, GOM_MIN_QP_MODE, MAX_LOW_BR_QP);
pWelsSvcRc->dQStep = RcConvertQp2QStep (iLumaQp);
pWelsSvcRc->iLastCalculatedQScale = iLumaQp;
if (pEncCtx->pSvcParam->bEnableAdaptiveQuant) {
iLumaQp = (int32_t)(iLumaQp - pEncCtx->pVaa->sAdaptiveQuantParam.dAverMotionTextureIndexToDeltaQp);
}
pEncCtx->iGlobalQp = iLumaQp;
return;
}
else {
double dCmplxRatio = (double)pEncCtx->pVaa->sComplexityAnalysisParam.iFrameComplexity / pTOverRc->iFrameCmplxMean;
dCmplxRatio = WELS_CLIP3 (dCmplxRatio, 1.0 - FRAME_CMPLX_RATIO_RANGE, 1.0 + FRAME_CMPLX_RATIO_RANGE);
@ -459,8 +490,11 @@ void RcCalculatePictureQp (sWelsEncCtx* pEncCtx) {
#ifndef _NOT_USE_AQ_FOR_TEST_
if (pEncCtx->pSvcParam->bEnableAdaptiveQuant) {
iLumaQp = (int32_t)WELS_CLIP3 (iLumaQp - pEncCtx->pVaa->sAdaptiveQuantParam.dAverMotionTextureIndexToDeltaQp,
pWelsSvcRc->iMinQp, pWelsSvcRc->iMaxQp);
iLumaQp = (int32_t)(iLumaQp - pEncCtx->pVaa->sAdaptiveQuantParam.dAverMotionTextureIndexToDeltaQp);
if (pEncCtx->pSvcParam->iRCMode!=RC_LOW_BW_MODE)
iLumaQp = (int32_t)WELS_CLIP3 (iLumaQp,pWelsSvcRc->iMinQp, pWelsSvcRc->iMaxQp);
}
#endif
pEncCtx->iGlobalQp = iLumaQp;
@ -489,12 +523,22 @@ void RcInitSliceInformation (sWelsEncCtx* pEncCtx) {
void RcDecideTargetBits (sWelsEncCtx* pEncCtx) {
SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId];
SRCTemporal* pTOverRc = &pWelsSvcRc->pTemporalOverRc[pEncCtx->uiTemporalId];
pWelsSvcRc->iCurrentBitsLevel = BITS_NORMAL;
//allocate bits
if (pEncCtx->eSliceType == I_SLICE) {
pWelsSvcRc->iTargetBits = (int32_t) (pWelsSvcRc->dBitsPerFrame * IDR_BITRATE_RATIO);
} else {
pWelsSvcRc->iTargetBits = (int32_t) (pWelsSvcRc->iRemainingBits * pTOverRc->dTlayerWeight /
pWelsSvcRc->dRemainingWeights);
if ((pWelsSvcRc->iTargetBits <= 0) && (pEncCtx->pSvcParam->iRCMode == RC_LOW_BW_MODE))
{
pWelsSvcRc->iCurrentBitsLevel = BITS_EXCEEDED;
}
else if ((pWelsSvcRc->iTargetBits <= pTOverRc->iMinBitsTl) && (pEncCtx->pSvcParam->iRCMode == RC_LOW_BW_MODE))
{
pWelsSvcRc->iCurrentBitsLevel = BITS_LIMITED;
}
pWelsSvcRc->iTargetBits = WELS_CLIP3 (pWelsSvcRc->iTargetBits, pTOverRc->iMinBitsTl, pTOverRc->iMaxBitsTl);
}
pWelsSvcRc->dRemainingWeights -= pTOverRc->dTlayerWeight;
@ -617,7 +661,8 @@ void RcCalculateGomQp (sWelsEncCtx* pEncCtx, SMB* pCurMb, int32_t iSliceId) {
pSOverRc->iCalculatedQpSlice = WELS_CLIP3 (pSOverRc->iCalculatedQpSlice,
pEncCtx->iGlobalQp - pWelsSvcRc->iQpRangeLowerInFrame, pEncCtx->iGlobalQp + pWelsSvcRc->iQpRangeUpperInFrame);
pSOverRc->iCalculatedQpSlice = WELS_CLIP3 (pSOverRc->iCalculatedQpSlice, pWelsSvcRc->iMinQp, pWelsSvcRc->iMaxQp);
if (!(pEncCtx->pSvcParam->iRCMode==RC_LOW_BW_MODE))
pSOverRc->iCalculatedQpSlice = WELS_CLIP3 (pSOverRc->iCalculatedQpSlice, pWelsSvcRc->iMinQp, pWelsSvcRc->iMaxQp);
pSOverRc->iGomBitsSlice = 0;

8
codec/encoder/core/src/wels_preprocess.cpp
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@ -346,7 +346,7 @@ int32_t CWelsPreProcess::AnalyzeSpatialPic (sWelsEncCtx* pCtx, const int32_t kiD
{
SPicture* pLastPic = m_pLastSpatialPicture[kiDidx][0];
bool bCalculateSQDiff = ((pLastPic->pData[0] == pRefPic->pData[0]) && bNeededMbAq);
bool bCalculateVar = (pSvcParam->iRCMode == RC_MODE1 && pCtx->eSliceType == I_SLICE);
bool bCalculateVar = (pSvcParam->iRCMode >= RC_BITRATE_MODE && pCtx->eSliceType == I_SLICE);
VaaCalculation (pCtx->pVaa, pCurPic, pRefPic, bCalculateSQDiff, bCalculateVar, bCalculateBGD);
}
@ -839,11 +839,11 @@ void CWelsPreProcess::AnalyzePictureComplexity (sWelsEncCtx* pCtx, SPicture* pCu
SWelsSvcRc* SWelsSvcRc = &pCtx->pWelsSvcRc[kiDependencyId];
int32_t iComplexityAnalysisMode = 0;
if (pSvcParam->iRCMode == RC_MODE0 && pCtx->eSliceType == P_SLICE) {
if (pSvcParam->iRCMode == RC_QUALITY_MODE && pCtx->eSliceType == P_SLICE) {
iComplexityAnalysisMode = FRAME_SAD;
} else if (pSvcParam->iRCMode == RC_MODE1 && pCtx->eSliceType == P_SLICE) {
} else if (pSvcParam->iRCMode >= RC_BITRATE_MODE && pCtx->eSliceType == P_SLICE) {
iComplexityAnalysisMode = GOM_SAD;
} else if (pSvcParam->iRCMode == RC_MODE1 && pCtx->eSliceType == I_SLICE) {
} else if (pSvcParam->iRCMode >= RC_BITRATE_MODE && pCtx->eSliceType == I_SLICE) {
iComplexityAnalysisMode = GOM_VAR;
} else {
return;

2
codec/encoder/plus/src/welsEncoderExt.cpp
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@ -903,7 +903,7 @@ int CWelsH264SVCEncoder::SetOption (ENCODER_OPTION eOptionId, void* pOption) {
WelsEncoderApplyBitRate (m_pEncContext->pSvcParam,pInfo->iLayer);
}
break;
case ENCODER_OPTION_RC_MODE: { // 0:quality mode;1:bit-rate mode
case ENCODER_OPTION_RC_MODE: { // 0:quality mode;1:bit-rate mode;2:bitrate limited mode
int32_t iValue = * ((int32_t*)pOption);
m_pEncContext->pSvcParam->iRCMode = iValue;
}