[x265] [PATCH] Search: remove redundant encode coefficients in intra for performance
Deepthi Nandakumar
deepthi at multicorewareinc.com
Mon Sep 15 13:11:31 CEST 2014
Sorry, the output mismatch was due to asm. Pushed.
On Sun, Sep 14, 2014 at 4:35 PM, Deepthi Nandakumar <
deepthi at multicorewareinc.com> wrote:
> This significantly changes outputs for P and B frames. Higher bitrates and
> higher SSIM. Lets do full regression testing on this - and compare the
> bitrate/ssim for all combinations to be reasonably sure there are no bugs.
>
> On Fri, Sep 12, 2014 at 7:47 PM, <ashok at multicorewareinc.com> wrote:
>
>> # HG changeset patch
>> # User Ashok Kumar Mishra<ashok at multicorewareinc.com>
>> # Date 1410341620 -19800
>> # Wed Sep 10 15:03:40 2014 +0530
>> # Node ID d8be3c38915d4a628b804522da8946a152041203
>> # Parent cd8fd0afd4e873fc940ae3384fac4deed3ec7b4f
>> Search: remove redundant encode coefficients in intra for performance
>>
>> diff -r cd8fd0afd4e8 -r d8be3c38915d source/encoder/analysis.cpp
>> --- a/source/encoder/analysis.cpp Thu Sep 11 17:25:40 2014 -0700
>> +++ b/source/encoder/analysis.cpp Wed Sep 10 15:03:40 2014 +0530
>> @@ -1840,6 +1840,7 @@
>> void Analysis::encodeIntraInInter(TComDataCU* cu, TComYuv* fencYuv,
>> TComYuv* predYuv, ShortYuv* outResiYuv, TComYuv* outReconYuv)
>> {
>> uint64_t puCost = 0;
>> + uint32_t puBits = 0;
>> uint32_t depth = cu->getDepth(0);
>> uint32_t initTrDepth = cu->getPartitionSize(0) == SIZE_2Nx2N ? 0 : 1;
>>
>> @@ -1851,7 +1852,7 @@
>> uint32_t tuDepthRange[2];
>> cu->getQuadtreeTULog2MinSizeInCU(tuDepthRange, 0);
>>
>> - uint32_t puDistY = xRecurIntraCodingQT(cu, initTrDepth, 0, fencYuv,
>> predYuv, outResiYuv, false, puCost, tuDepthRange);
>> + uint32_t puDistY = xRecurIntraCodingQT(cu, initTrDepth, 0, fencYuv,
>> predYuv, outResiYuv, false, puCost, puBits, tuDepthRange);
>> xSetIntraResultQT(cu, initTrDepth, 0, outReconYuv);
>>
>> //=== update PU data ====
>> diff -r cd8fd0afd4e8 -r d8be3c38915d source/encoder/search.cpp
>> --- a/source/encoder/search.cpp Thu Sep 11 17:25:40 2014 -0700
>> +++ b/source/encoder/search.cpp Wed Sep 10 15:03:40 2014 +0530
>> @@ -111,47 +111,6 @@
>> return false;
>> }
>>
>> -void Search::xEncSubdivCbfQTLuma(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, uint32_t depthRange[2])
>> -{
>> - uint32_t fullDepth = cu->getDepth(0) + trDepth;
>> - uint32_t trMode = cu->getTransformIdx(absPartIdx);
>> - uint32_t subdiv = (trMode > trDepth ? 1 : 0);
>> - uint32_t log2TrSize = g_maxLog2CUSize - fullDepth;
>> -
>> - if (cu->getPredictionMode(0) == MODE_INTRA &&
>> cu->getPartitionSize(0) == SIZE_NxN && trDepth == 0)
>> - {
>> - X265_CHECK(subdiv, "subdivision not present\n");
>> - }
>> - else if (log2TrSize > *(depthRange + 1))
>> - {
>> - X265_CHECK(subdiv, "subdivision not present\n");
>> - }
>> - else if (log2TrSize == cu->m_slice->m_sps->quadtreeTULog2MinSize)
>> - {
>> - X265_CHECK(!subdiv, "subdivision present\n");
>> - }
>> - else if (log2TrSize == *depthRange)
>> - {
>> - X265_CHECK(!subdiv, "subdivision present\n");
>> - }
>> - else
>> - {
>> - X265_CHECK(log2TrSize > *depthRange, "transform size too
>> small\n");
>> - m_entropyCoder->codeTransformSubdivFlag(subdiv, 5 - log2TrSize);
>> - }
>> -
>> - if (subdiv)
>> - {
>> - uint32_t qtPartNum = cu->m_pic->getNumPartInCU() >> ((fullDepth
>> + 1) << 1);
>> - for (uint32_t part = 0; part < 4; part++)
>> - xEncSubdivCbfQTLuma(cu, trDepth + 1, absPartIdx + part *
>> qtPartNum, depthRange);
>> -
>> - return;
>> - }
>> -
>> - m_entropyCoder->codeQtCbf(cu, absPartIdx, TEXT_LUMA, trMode);
>> -}
>> -
>> void Search::xEncSubdivCbfQTChroma(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, uint32_t absPartIdxStep, uint32_t width, uint32_t
>> height)
>> {
>> uint32_t fullDepth = cu->getDepth(0) + trDepth;
>> @@ -183,32 +142,6 @@
>> }
>> }
>>
>> -void Search::xEncCoeffQTLuma(TComDataCU* cu, uint32_t trDepth, uint32_t
>> absPartIdx)
>> -{
>> - const TextType ttype = TEXT_LUMA;
>> -
>> - if (!cu->getCbf(absPartIdx, ttype, trDepth))
>> - return;
>> -
>> - uint32_t fullDepth = cu->getDepth(0) + trDepth;
>> - uint32_t trMode = cu->getTransformIdx(absPartIdx);
>> -
>> - if (trMode > trDepth)
>> - {
>> - uint32_t qtPartNum = cu->m_pic->getNumPartInCU() >> ((fullDepth
>> + 1) << 1);
>> - for (uint32_t part = 0; part < 4; part++)
>> - xEncCoeffQTLuma(cu, trDepth + 1, absPartIdx + part *
>> qtPartNum);
>> -
>> - return;
>> - }
>> -
>> - uint32_t log2TrSize = g_maxLog2CUSize - fullDepth;
>> - uint32_t qtLayer = log2TrSize - 2;
>> - uint32_t coeffOffset = absPartIdx << LOG2_UNIT_SIZE * 2;
>> - coeff_t* coeff = m_qtTempCoeff[ttype][qtLayer] + coeffOffset;
>> - m_entropyCoder->codeCoeffNxN(cu, coeff, absPartIdx, log2TrSize,
>> ttype);
>> -}
>> -
>> void Search::xEncCoeffQTChroma(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, TextType ttype)
>> {
>> if (!cu->getCbf(absPartIdx, ttype, trDepth))
>> @@ -316,15 +249,6 @@
>> }
>> }
>>
>> -uint32_t Search::xGetIntraBitsQTLuma(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, uint32_t depthRange[2])
>> -{
>> - m_entropyCoder->resetBits();
>> - xEncIntraHeaderLuma(cu, trDepth, absPartIdx);
>> - xEncSubdivCbfQTLuma(cu, trDepth, absPartIdx, depthRange);
>> - xEncCoeffQTLuma(cu, trDepth, absPartIdx);
>> - return m_entropyCoder->getNumberOfWrittenBits();
>> -}
>> -
>> uint32_t Search::xGetIntraBitsQTChroma(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, uint32_t absPartIdxStep)
>> {
>> int cuSize = 1 << cu->getLog2CUSize(absPartIdx);
>> @@ -340,7 +264,14 @@
>> {
>> m_entropyCoder->resetBits();
>> xEncIntraHeaderLuma(cu, trDepth, absPartIdx);
>> - xEncSubdivCbfQTLuma(cu, trDepth, absPartIdx, depthRange);
>> +
>> + //Transform subdiv flag
>> + if (log2TrSize != *depthRange)
>> + m_entropyCoder->codeTransformSubdivFlag(0, 5 - log2TrSize);
>> +
>> + //===== Cbfs =====
>> + uint32_t trMode = cu->getTransformIdx(absPartIdx);
>> + m_entropyCoder->codeQtCbf(cu, absPartIdx, TEXT_LUMA, trMode);
>>
>> if (cu->getCbf(absPartIdx, TEXT_LUMA, trDepth))
>> m_entropyCoder->codeCoeffNxN(cu, coeff, absPartIdx, log2TrSize,
>> TEXT_LUMA);
>> @@ -463,7 +394,7 @@
>>
>> /* returns distortion. TODO reorder params */
>> uint32_t Search::xRecurIntraCodingQT(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, TComYuv* fencYuv, TComYuv* predYuv,
>> - ShortYuv* resiYuv, bool
>> bAllowRQTSplit, uint64_t& rdCost, uint32_t depthRange[2])
>> + ShortYuv* resiYuv, bool
>> bAllowRQTSplit, uint64_t& rdCost, uint32_t& rdBits, uint32_t depthRange[2])
>> {
>> uint32_t fullDepth = cu->getDepth(0) + trDepth;
>> uint32_t log2TrSize = g_maxLog2CUSize - fullDepth;
>> @@ -490,8 +421,9 @@
>> if (!bAllowRQTSplit && noSplitIntraMaxTuSize)
>> bCheckSplit = false;
>>
>> - uint64_t singleCost = MAX_INT64;
>> - uint32_t singleDistY = 0;
>> + uint64_t singleCost = MAX_INT64;
>> + uint32_t singleDistY = 0;
>> + uint32_t singleBits = 0;
>> uint32_t singlePsyEnergyY = 0;
>> uint32_t singleCbfY = 0;
>> int bestModeId = 0;
>> @@ -580,7 +512,7 @@
>> break;
>> else
>> {
>> - uint32_t singleBits = xGetIntraBitsLuma(cu, trDepth,
>> absPartIdx, log2TrSize, coeff, depthRange);
>> + singleBits = xGetIntraBitsLuma(cu, trDepth,
>> absPartIdx, log2TrSize, coeff, depthRange);
>> if (m_rdCost.m_psyRd)
>> singleCostTmp =
>> m_rdCost.calcPsyRdCost(singleDistYTmp, singleBits, singlePsyEnergyYTmp);
>> else
>> @@ -634,7 +566,7 @@
>> }
>> cu->setCbfSubParts(singleCbfY << trDepth, TEXT_LUMA,
>> absPartIdx, fullDepth);
>>
>> - uint32_t singleBits = xGetIntraBitsLuma(cu, trDepth,
>> absPartIdx, log2TrSize, coeffY, depthRange);
>> + singleBits = xGetIntraBitsLuma(cu, trDepth, absPartIdx,
>> log2TrSize, coeffY, depthRange);
>> if (m_param->rdPenalty && (log2TrSize == 5) && !isIntraSlice)
>> singleBits *= 4;
>>
>> @@ -663,23 +595,30 @@
>> uint32_t qPartsDiv = cu->m_pic->getNumPartInCU() >>
>> ((fullDepth + 1) << 1);
>> uint32_t absPartIdxSub = absPartIdx;
>> uint32_t splitCbfY = 0;
>> + uint32_t splitBits = 0;
>>
>> for (uint32_t part = 0; part < 4; part++, absPartIdxSub +=
>> qPartsDiv)
>> {
>> cu->m_psyEnergy = 0;
>> - splitDistY += xRecurIntraCodingQT(cu, trDepth + 1,
>> absPartIdxSub, fencYuv, predYuv, resiYuv, bAllowRQTSplit, splitCost,
>> depthRange);
>> + splitDistY += xRecurIntraCodingQT(cu, trDepth + 1,
>> absPartIdxSub, fencYuv, predYuv, resiYuv, bAllowRQTSplit, splitCost,
>> splitBits, depthRange);
>> splitPsyEnergyY += cu->m_psyEnergy;
>> splitCbfY |= cu->getCbf(absPartIdxSub, TEXT_LUMA, trDepth +
>> 1);
>> }
>> +
>> + if (bCheckFull)
>> + {
>> + m_entropyCoder->resetBits();
>> +
>> + //subdiv
>> + if (log2TrSize != *depthRange)
>> + m_entropyCoder->codeTransformSubdivFlag(1, 5 -
>> log2TrSize);
>> +
>> + splitBits += m_entropyCoder->getNumberOfWrittenBits();
>> + }
>>
>> for (uint32_t offs = 0; offs < 4 * qPartsDiv; offs++)
>> cu->getCbf(TEXT_LUMA)[absPartIdx + offs] |= (splitCbfY <<
>> trDepth);
>>
>> - // restore context states
>> -
>> m_entropyCoder->load(m_rdEntropyCoders[fullDepth][CI_QT_TRAFO_ROOT]);
>> -
>> - // determine rate and r-d cost
>> - uint32_t splitBits = xGetIntraBitsQTLuma(cu, trDepth,
>> absPartIdx, depthRange);
>> if (m_rdCost.m_psyRd)
>> splitCost = m_rdCost.calcPsyRdCost(splitDistY, splitBits,
>> splitPsyEnergyY);
>> else
>> @@ -689,6 +628,7 @@
>> {
>> outDist += splitDistY;
>> rdCost += splitCost;
>> + rdBits += splitBits;
>> cu->m_psyEnergy = splitPsyEnergyY;
>> return outDist;
>> }
>> @@ -717,6 +657,7 @@
>> }
>>
>> rdCost += singleCost;
>> + rdBits += singleBits;
>> cu->m_psyEnergy = singlePsyEnergyY;
>> return outDist + singleDistY;
>> }
>> @@ -1416,6 +1357,7 @@
>> uint32_t bestPUDistY = 0;
>> uint64_t bestPUCost = MAX_INT64;
>> uint32_t puDistY;
>> + uint32_t puBits;
>> uint64_t puCost;
>> for (int mode = 0; mode < numModesForFullRD; mode++)
>> {
>> @@ -1427,7 +1369,8 @@
>>
>> // determine residual for partition
>> puCost = 0;
>> - puDistY = xRecurIntraCodingQT(cu, initTrDepth, partOffset,
>> fencYuv, predYuv, resiYuv, false, puCost, depthRange);
>> + puBits = 0;
>> + puDistY = xRecurIntraCodingQT(cu, initTrDepth, partOffset,
>> fencYuv, predYuv, resiYuv, false, puCost, puBits, depthRange);
>>
>> // check r-d cost
>> if (puCost < bestPUCost)
>> @@ -1446,7 +1389,8 @@
>>
>> // determine residual for partition
>> puCost = 0;
>> - puDistY = xRecurIntraCodingQT(cu, initTrDepth, partOffset,
>> fencYuv, predYuv, resiYuv, true, puCost, depthRange);
>> + puBits = 0;
>> + puDistY = xRecurIntraCodingQT(cu, initTrDepth, partOffset,
>> fencYuv, predYuv, resiYuv, true, puCost, puBits, depthRange);
>>
>> overallDistY += (puCost >= bestPUCost) ? bestPUDistY : puDistY;
>>
>> diff -r cd8fd0afd4e8 -r d8be3c38915d source/encoder/search.h
>> --- a/source/encoder/search.h Thu Sep 11 17:25:40 2014 -0700
>> +++ b/source/encoder/search.h Wed Sep 10 15:03:40 2014 +0530
>> @@ -129,14 +129,11 @@
>> void xSetResidualQTData(TComDataCU* cu, uint32_t absPartIdx,
>> ShortYuv* resiYuv, uint32_t depth, bool bSpatial);
>> void xSetIntraResultQT(TComDataCU* cu, uint32_t trDepth, uint32_t
>> absPartIdx, TComYuv* reconYuv);
>>
>> - void xEncSubdivCbfQTLuma(TComDataCU* cu, uint32_t trDepth, uint32_t
>> absPartIdx, uint32_t depthRange[2]);
>> void xEncSubdivCbfQTChroma(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, uint32_t absPartIdxStep, uint32_t width, uint32_t
>> height);
>> -
>> - void xEncCoeffQTLuma(TComDataCU* cu, uint32_t trDepth, uint32_t
>> absPartIdx);
>> void xEncCoeffQTChroma(TComDataCU* cu, uint32_t trDepth, uint32_t
>> absPartIdx, TextType ttype);
>> void xEncIntraHeaderLuma(TComDataCU* cu, uint32_t trDepth, uint32_t
>> absPartIdx);
>> void xEncIntraHeaderChroma(TComDataCU* cu, uint32_t absPartIdx);
>> - uint32_t xGetIntraBitsQTLuma(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, uint32_t depthRange[2]);
>> +
>> uint32_t xGetIntraBitsQTChroma(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, uint32_t absPartIdxStep);
>> uint32_t xGetIntraBitsLuma(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, uint32_t log2TrSize, coeff_t* coeff, uint32_t
>> depthRange[2]);
>> uint32_t xGetIntraBitsChroma(TComDataCU* cu, uint32_t absPartIdx,
>> uint32_t log2TrSizeC, uint32_t chromaId, coeff_t* coeff);
>> @@ -147,7 +144,7 @@
>> uint64_t &rdCost, uint32_t &outBits,
>> uint32_t *zeroDist, uint32_t tuDepthRange[2]);
>>
>> uint32_t xRecurIntraCodingQT(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, TComYuv* fencYuv, TComYuv* predYuv,
>> - ShortYuv* resiYuv, bool bAllowRQTSplit,
>> uint64_t& dRDCost, uint32_t depthRange[2]);
>> + ShortYuv* resiYuv, bool bAllowRQTSplit,
>> uint64_t& dRDCost, uint32_t& puBits, uint32_t depthRange[2]);
>>
>> uint32_t xRecurIntraChromaCodingQT(TComDataCU* cu, uint32_t trDepth,
>> uint32_t absPartIdx, TComYuv* fencYuv, TComYuv* predYuv, ShortYuv* resiYuv);
>>
>> _______________________________________________
>> x265-devel mailing list
>> x265-devel at videolan.org
>> https://mailman.videolan.org/listinfo/x265-devel
>>
>
>
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