void RcCalculateIdrQp (sWelsEncCtx* pEncCtx) { SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId]; //obtain the idr qp using previous idr complexity if (pWelsSvcRc->iNumberMbFrame != pWelsSvcRc->iIntraMbCount) { pWelsSvcRc->iIntraComplexity = WELS_ROUND((double)pWelsSvcRc->iIntraComplexity * pWelsSvcRc->iNumberMbFrame / pWelsSvcRc->iIntraMbCount); } pWelsSvcRc->iInitialQp = WELS_ROUND(RcConvertQStep2Qp ((double)pWelsSvcRc->iIntraComplexity / pWelsSvcRc->iTargetBits)); pWelsSvcRc->iInitialQp = WELS_ROUND(WELS_CLIP3 (pWelsSvcRc->iInitialQp, MIN_IDR_QP, MAX_IDR_QP)); pEncCtx->iGlobalQp = pWelsSvcRc->iInitialQp; pWelsSvcRc->dQStep = RcConvertQp2QStep (pEncCtx->iGlobalQp); pWelsSvcRc->iLastCalculatedQScale = pEncCtx->iGlobalQp; }
void RcCalculatePictureQp (sWelsEncCtx* pEncCtx) { SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId]; int32_t iTl = pEncCtx->uiTemporalId; SRCTemporal* pTOverRc = &pWelsSvcRc->pTemporalOverRc[iTl]; int32_t iLumaQp = 0; if (0 == pTOverRc->iPFrameNum) { iLumaQp = pWelsSvcRc->iInitialQp; } 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); pWelsSvcRc->dQStep = pTOverRc->dLinearCmplx * dCmplxRatio / pWelsSvcRc->iTargetBits; iLumaQp = (int32_t) (RcConvertQStep2Qp (pWelsSvcRc->dQStep) + 0.5); //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, GOM_MAX_QP_MODE); pWelsSvcRc->dQStep = RcConvertQp2QStep (iLumaQp); pWelsSvcRc->iLastCalculatedQScale = iLumaQp; #ifndef _NOT_USE_AQ_FOR_TEST_ if (pEncCtx->pSvcParam->bEnableAdaptiveQuant) { iLumaQp = (int32_t)WELS_CLIP3 (iLumaQp - pEncCtx->pVaa->sAdaptiveQuantParam.dAverMotionTextureIndexToDeltaQp, pWelsSvcRc->iMinQp, pWelsSvcRc->iMaxQp); } #endif pEncCtx->iGlobalQp = iLumaQp; }
void RcCalculatePictureQp (sWelsEncCtx* pEncCtx) { SWelsSvcRc* pWelsSvcRc = &pEncCtx->pWelsSvcRc[pEncCtx->uiDependencyId]; int32_t iTl = pEncCtx->uiTemporalId; SRCTemporal* pTOverRc = &pWelsSvcRc->pTemporalOverRc[iTl]; int32_t iLumaQp = 0; if (0 == pTOverRc->iPFrameNum) { iLumaQp = pWelsSvcRc->iInitialQp; } 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->iQStep = RcConvertQp2QStep (iLumaQp); pWelsSvcRc->iLastCalculatedQScale = iLumaQp; if (pEncCtx->pSvcParam->bEnableAdaptiveQuant) { iLumaQp = WELS_CLIP3 ((iLumaQp * INT_MULTIPLY - pEncCtx->pVaa->sAdaptiveQuantParam.iAverMotionTextureIndexToDeltaQp) / INT_MULTIPLY, GOM_MIN_QP_MODE, MAX_LOW_BR_QP); } pEncCtx->iGlobalQp = iLumaQp; return; } else { int64_t iCmplxRatio = WELS_DIV_ROUND64 (pEncCtx->pVaa->sComplexityAnalysisParam.iFrameComplexity * INT_MULTIPLY, pTOverRc->iFrameCmplxMean); iCmplxRatio = WELS_CLIP3 (iCmplxRatio, INT_MULTIPLY - FRAME_CMPLX_RATIO_RANGE, INT_MULTIPLY + FRAME_CMPLX_RATIO_RANGE); pWelsSvcRc->iQStep = WELS_DIV_ROUND ((pTOverRc->iLinearCmplx * iCmplxRatio), (pWelsSvcRc->iTargetBits * INT_MULTIPLY)); iLumaQp = RcConvertQStep2Qp (pWelsSvcRc->iQStep); //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, GOM_MAX_QP_MODE); pWelsSvcRc->iQStep = RcConvertQp2QStep (iLumaQp); pWelsSvcRc->iLastCalculatedQScale = iLumaQp; #ifndef _NOT_USE_AQ_FOR_TEST_ if (pEncCtx->pSvcParam->bEnableAdaptiveQuant) { iLumaQp = WELS_DIV_ROUND (iLumaQp * INT_MULTIPLY - pEncCtx->pVaa->sAdaptiveQuantParam.iAverMotionTextureIndexToDeltaQp, INT_MULTIPLY); if (pEncCtx->pSvcParam->iRCMode != RC_LOW_BW_MODE) iLumaQp = WELS_CLIP3 (iLumaQp, pWelsSvcRc->iMinQp, pWelsSvcRc->iMaxQp); } #endif pEncCtx->iGlobalQp = iLumaQp; }