<div dir="ltr">Found following cases in encoding efficiency of no-wpp (in comparison with wpp),<div>1. Drop in bitrate and raise in SSIM.</div><div>2. Drop in bitrate and drop in SSIM ( Compared visual quality of no-wpp with wpp. no-wpp's visual quality is better than wpp in some cases and both are of equal quality in some cases) .</div><div>3. Raise in bitrate and drop in SSIM ( Found in medium preset. No difference in visual quality is observed). </div><div>PFA - comparison file.</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Oct 27, 2016 at 12:27 PM, <span dir="ltr"><<a href="mailto:x265-devel-request@videolan.org" target="_blank">x265-devel-request@videolan.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send x265-devel mailing list submissions to<br>
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1. Re: [PATCH] Add VBV support for No-WPP (Pradeep Ramachandran)<br>
<br>
<br>
------------------------------<wbr>------------------------------<wbr>----------<br>
<br>
Message: 1<br>
Date: Thu, 27 Oct 2016 12:26:41 +0530<br>
From: Pradeep Ramachandran <<a href="mailto:pradeep@multicorewareinc.com">pradeep@multicorewareinc.com</a>><br>
To: Development for x265 <<a href="mailto:x265-devel@videolan.org">x265-devel@videolan.org</a>><br>
Subject: Re: [x265] [PATCH] Add VBV support for No-WPP<br>
Message-ID:<br>
<<a href="mailto:CAKpaXXfGvcA%2Be6h5v0Br1sMQDrfW9e2KYZNAfxW5ANUb-WAxKA@mail.gmail.com">CAKpaXXfGvcA+<wbr>e6h5v0Br1sMQDrfW9e2KYZNAfxW5AN<wbr>Ub-WAxKA@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
On Wed, Oct 26, 2016 at 11:08 AM, <<a href="mailto:aruna@multicorewareinc.com">aruna@multicorewareinc.com</a>> wrote:<br>
<br>
> # HG changeset patch<br>
> # User Aruna Matheswaran<br>
> # Date 1476352364 -19800<br>
> # Thu Oct 13 15:22:44 2016 +0530<br>
> # Node ID f9e7422416c9d2d4f7b7618791a7c2<wbr>8592de4828<br>
> # Parent bc911034c2a07380630aff98fdda38<wbr>038b2ae62e<br>
> Add VBV support for No-WPP<br>
><br>
<br>
Can you please share what improvement to encoding efficiency you see on<br>
command-lines with VBV with and without wpp?<br>
<br>
<br>
> diff -r bc911034c2a0 -r f9e7422416c9 source/common/bitstream.h<br>
> --- a/source/common/bitstream.h Tue Oct 25 11:32:10 2016 +0530<br>
> +++ b/source/common/bitstream.h Thu Oct 13 15:22:44 2016 +0530<br>
> @@ -71,6 +71,7 @@<br>
> uint32_t getNumberOfWrittenBytes() const { return m_byteOccupancy; }<br>
> uint32_t getNumberOfWrittenBits() const { return m_byteOccupancy * 8<br>
> + m_partialByteBits; }<br>
> const uint8_t* getFIFO() const { return m_fifo; }<br>
> + void copyBits(Bitstream* stream) { m_partialByteBits =<br>
> stream->m_partialByteBits; m_byteOccupancy = stream->m_byteOccupancy;<br>
> m_partialByte = stream->m_partialByte; }<br>
><br>
> void write(uint32_t val, uint32_t numBits);<br>
> void writeByte(uint32_t val);<br>
> diff -r bc911034c2a0 -r f9e7422416c9 source/common/framedata.h<br>
> --- a/source/common/framedata.h Tue Oct 25 11:32:10 2016 +0530<br>
> +++ b/source/common/framedata.h Thu Oct 13 15:22:44 2016 +0530<br>
> @@ -126,10 +126,10 @@<br>
> uint32_t encodedBits; /* sum of 'totalBits' of encoded CTUs */<br>
> uint32_t satdForVbv; /* sum of lowres (estimated) costs for<br>
> entire row */<br>
> uint32_t intraSatdForVbv; /* sum of lowres (estimated) intra<br>
> costs for entire row */<br>
> - uint32_t diagSatd;<br>
> - uint32_t diagIntraSatd;<br>
> - double diagQp;<br>
> - double diagQpScale;<br>
> + uint32_t rowSatd;<br>
> + uint32_t rowIntraSatd;<br>
> + double rowQp;<br>
> + double rowQpScale;<br>
> double sumQpRc;<br>
> double sumQpAq;<br>
> };<br>
> diff -r bc911034c2a0 -r f9e7422416c9 source/encoder/encoder.cpp<br>
> --- a/source/encoder/encoder.cpp Tue Oct 25 11:32:10 2016 +0530<br>
> +++ b/source/encoder/encoder.cpp Thu Oct 13 15:22:44 2016 +0530<br>
> @@ -149,12 +149,6 @@<br>
> p->bEnableWavefront = p->bDistributeModeAnalysis =<br>
> p->bDistributeMotionEstimation = p->lookaheadSlices = 0;<br>
> }<br>
><br>
> - if (!p->bEnableWavefront && p->rc.vbvBufferSize)<br>
> - {<br>
> - x265_log(p, X265_LOG_ERROR, "VBV requires wavefront<br>
> parallelism\n");<br>
> - m_aborted = true;<br>
> - }<br>
> -<br>
> x265_log(p, X265_LOG_INFO, "Slices :<br>
> %d\n", p->maxSlices);<br>
><br>
> char buf[128];<br>
> diff -r bc911034c2a0 -r f9e7422416c9 source/encoder/frameencoder.<wbr>cpp<br>
> --- a/source/encoder/frameencoder.<wbr>cpp Tue Oct 25 11:32:10 2016 +0530<br>
> +++ b/source/encoder/frameencoder.<wbr>cpp Thu Oct 13 15:22:44 2016 +0530<br>
> @@ -50,6 +50,7 @@<br>
> m_bAllRowsStop = false;<br>
> m_vbvResetTriggerRow = -1;<br>
> m_outStreams = NULL;<br>
> + m_backupStreams = NULL;<br>
> m_substreamSizes = NULL;<br>
> m_nr = NULL;<br>
> m_tld = NULL;<br>
> @@ -85,6 +86,7 @@<br>
><br>
> delete[] m_rows;<br>
> delete[] m_outStreams;<br>
> + delete[] m_backupStreams;<br>
> X265_FREE(m_sliceBaseRow);<br>
> X265_FREE(m_cuGeoms);<br>
> X265_FREE(m_ctuGeomMap);<br>
> @@ -532,6 +534,8 @@<br>
> if (!m_outStreams)<br>
> {<br>
> m_outStreams = new Bitstream[numSubstreams];<br>
> + if (!m_param->bEnableWavefront)<br>
> + m_backupStreams = new Bitstream[numSubstreams];<br>
> m_substreamSizes = X265_MALLOC(uint32_t, numSubstreams);<br>
> if (!m_param->bEnableSAO)<br>
> for (uint32_t i = 0; i < numSubstreams; i++)<br>
> @@ -1203,17 +1207,25 @@<br>
><br>
> if (bIsVbv)<br>
> {<br>
> - if (!row)<br>
> + if (col == 0 && !m_param->bEnableWavefront)<br>
> + {<br>
> + m_backupStreams[0].copyBits(&<wbr>m_outStreams[0]);<br>
> + curRow.bufferedEntropy.<wbr>copyState(rowCoder);<br>
> + curRow.bufferedEntropy.<wbr>loadContexts(rowCoder);<br>
> + }<br>
> + if (!row && m_vbvResetTriggerRow != intRow)<br>
> {<br>
> - curEncData.m_rowStat[row].<wbr>diagQp = curEncData.m_avgQpRc;<br>
> - curEncData.m_rowStat[row].<wbr>diagQpScale =<br>
> x265_qp2qScale(curEncData.m_<wbr>avgQpRc);<br>
> + curEncData.m_rowStat[row].<wbr>rowQp = curEncData.m_avgQpRc;<br>
> + curEncData.m_rowStat[row].<wbr>rowQpScale =<br>
> x265_qp2qScale(curEncData.m_<wbr>avgQpRc);<br>
> }<br>
><br>
> FrameData::RCStatCU& cuStat = curEncData.m_cuStat[cuAddr];<br>
> - if (row >= col && row && m_vbvResetTriggerRow != intRow)<br>
> - cuStat.baseQp = curEncData.m_cuStat[cuAddr - numCols +<br>
> 1].baseQp;<br>
> + if (m_param->bEnableWavefront && row >= col && row &&<br>
> m_vbvResetTriggerRow != intRow)<br>
> + cuStat.baseQp = curEncData.m_cuStat[cuAddr - numCols +<br>
> 1].baseQp;<br>
> + else if (!m_param->bEnableWavefront && row &&<br>
> m_vbvResetTriggerRow != intRow)<br>
> + cuStat.baseQp = curEncData.m_rowStat[row - 1].rowQp;<br>
> else<br>
> - cuStat.baseQp = curEncData.m_rowStat[row].<wbr>diagQp;<br>
> + cuStat.baseQp = curEncData.m_rowStat[row].<wbr>rowQp;<br>
><br>
> /* TODO: use defines from slicetype.h for lowres block size */<br>
> uint32_t block_y = (ctu->m_cuPelY >> g_maxLog2CUSize) *<br>
> noOfBlocks;<br>
> @@ -1364,21 +1376,52 @@<br>
> if (bIsVbv)<br>
> {<br>
> // Update encoded bits, satdCost, baseQP for each CU<br>
> - curEncData.m_rowStat[row].<wbr>diagSatd +=<br>
> curEncData.m_cuStat[cuAddr].<wbr>vbvCost;<br>
> - curEncData.m_rowStat[row].<wbr>diagIntraSatd +=<br>
> curEncData.m_cuStat[cuAddr].<wbr>intraVbvCost;<br>
> + curEncData.m_rowStat[row].<wbr>rowSatd +=<br>
> curEncData.m_cuStat[cuAddr].<wbr>vbvCost;<br>
> + curEncData.m_rowStat[row].<wbr>rowIntraSatd +=<br>
> curEncData.m_cuStat[cuAddr].<wbr>intraVbvCost;<br>
> curEncData.m_rowStat[row].<wbr>encodedBits +=<br>
> curEncData.m_cuStat[cuAddr].<wbr>totalBits;<br>
> curEncData.m_rowStat[row].<wbr>sumQpRc +=<br>
> curEncData.m_cuStat[cuAddr].<wbr>baseQp;<br>
> curEncData.m_rowStat[row].<wbr>numEncodedCUs = cuAddr;<br>
><br>
> + // If current block is at row end checkpoint, call vbv<br>
> ratecontrol.<br>
> +<br>
> + if (!m_param->bEnableWavefront && col == numCols - 1)<br>
> + {<br>
> + double qpBase = curEncData.m_cuStat[cuAddr].<wbr>baseQp;<br>
> + int reEncode = m_top->m_rateControl-><wbr>rowVbvRateControl(m_frame,<br>
> row, &m_rce, qpBase);<br>
> + qpBase = x265_clip3((double)m_param-><wbr>rc.qpMin,<br>
> (double)m_param->rc.qpMax, qpBase);<br>
> + curEncData.m_rowStat[row].<wbr>rowQp = qpBase;<br>
> + curEncData.m_rowStat[row].<wbr>rowQpScale =<br>
> x265_qp2qScale(qpBase);<br>
> + if (reEncode < 0)<br>
> + {<br>
> + x265_log(m_param, X265_LOG_DEBUG, "POC %d row %d -<br>
> encode restart required for VBV, to %.2f from %.2f\n",<br>
> + m_frame->m_poc, row, qpBase,<br>
> curEncData.m_cuStat[cuAddr].<wbr>baseQp);<br>
> +<br>
> + m_vbvResetTriggerRow = row;<br>
> + m_outStreams[0].copyBits(&m_<wbr>backupStreams[0]);<br>
> +<br>
> + rowCoder.copyState(curRow.<wbr>bufferedEntropy);<br>
> + rowCoder.loadContexts(curRow.<wbr>bufferedEntropy);<br>
> +<br>
> + curRow.completed = 0;<br>
> + memset(&curRow.rowStats, 0, sizeof(curRow.rowStats));<br>
> + curEncData.m_rowStat[row].<wbr>numEncodedCUs = 0;<br>
> + curEncData.m_rowStat[row].<wbr>encodedBits = 0;<br>
> + curEncData.m_rowStat[row].<wbr>rowSatd = 0;<br>
> + curEncData.m_rowStat[row].<wbr>rowIntraSatd = 0;<br>
> + curEncData.m_rowStat[row].<wbr>sumQpRc = 0;<br>
> + curEncData.m_rowStat[row].<wbr>sumQpAq = 0;<br>
> + }<br>
> + }<br>
> +<br>
> // If current block is at row diagonal checkpoint, call vbv<br>
> ratecontrol.<br>
><br>
> - if (row == col && row)<br>
> + else if (m_param->bEnableWavefront && row == col && row)<br>
> {<br>
> double qpBase = curEncData.m_cuStat[cuAddr].<wbr>baseQp;<br>
> - int reEncode = m_top->m_rateControl-><br>
> rowDiagonalVbvRateControl(m_<wbr>frame, row, &m_rce, qpBase);<br>
> + int reEncode = m_top->m_rateControl-><wbr>rowVbvRateControl(m_frame,<br>
> row, &m_rce, qpBase);<br>
> qpBase = x265_clip3((double)m_param-><wbr>rc.qpMin,<br>
> (double)m_param->rc.qpMax, qpBase);<br>
> - curEncData.m_rowStat[row].<wbr>diagQp = qpBase;<br>
> - curEncData.m_rowStat[row].<wbr>diagQpScale =<br>
> x265_qp2qScale(qpBase);<br>
> + curEncData.m_rowStat[row].<wbr>rowQp = qpBase;<br>
> + curEncData.m_rowStat[row].<wbr>rowQpScale =<br>
> x265_qp2qScale(qpBase);<br>
><br>
> if (reEncode < 0)<br>
> {<br>
> @@ -1431,8 +1474,8 @@<br>
> memset(&stopRow.rowStats, 0,<br>
> sizeof(stopRow.rowStats));<br>
> curEncData.m_rowStat[r].<wbr>numEncodedCUs = 0;<br>
> curEncData.m_rowStat[r].<wbr>encodedBits = 0;<br>
> - curEncData.m_rowStat[r].<wbr>diagSatd = 0;<br>
> - curEncData.m_rowStat[r].<wbr>diagIntraSatd = 0;<br>
> + curEncData.m_rowStat[r].<wbr>rowSatd = 0;<br>
> + curEncData.m_rowStat[r].<wbr>rowIntraSatd = 0;<br>
> curEncData.m_rowStat[r].<wbr>sumQpRc = 0;<br>
> curEncData.m_rowStat[r].<wbr>sumQpAq = 0;<br>
> }<br>
> diff -r bc911034c2a0 -r f9e7422416c9 source/encoder/frameencoder.h<br>
> --- a/source/encoder/frameencoder.<wbr>h Tue Oct 25 11:32:10 2016 +0530<br>
> +++ b/source/encoder/frameencoder.<wbr>h Thu Oct 13 15:22:44 2016 +0530<br>
> @@ -184,6 +184,7 @@<br>
> NoiseReduction* m_nr;<br>
> ThreadLocalData* m_tld; /* for --no-wpp */<br>
> Bitstream* m_outStreams;<br>
> + Bitstream* m_backupStreams;<br>
> uint32_t* m_substreamSizes;<br>
><br>
> CUGeom* m_cuGeoms;<br>
> diff -r bc911034c2a0 -r f9e7422416c9 source/encoder/ratecontrol.cpp<br>
> --- a/source/encoder/ratecontrol.<wbr>cpp Tue Oct 25 11:32:10 2016 +0530<br>
> +++ b/source/encoder/ratecontrol.<wbr>cpp Thu Oct 13 15:22:44 2016 +0530<br>
> @@ -2180,7 +2180,7 @@<br>
> for (uint32_t row = 0; row < maxRows; row++)<br>
> {<br>
> encodedBitsSoFar += curEncData.m_rowStat[row].<wbr>encodedBits;<br>
> - rowSatdCostSoFar = curEncData.m_rowStat[row].<wbr>diagSatd;<br>
> + rowSatdCostSoFar = curEncData.m_rowStat[row].<wbr>rowSatd;<br>
> uint32_t satdCostForPendingCus = curEncData.m_rowStat[row].<wbr>satdForVbv<br>
> - rowSatdCostSoFar;<br>
> satdCostForPendingCus >>= X265_DEPTH - 8;<br>
> if (satdCostForPendingCus > 0)<br>
> @@ -2209,7 +2209,7 @@<br>
> }<br>
><br>
> refRowSatdCost >>= X265_DEPTH - 8;<br>
> - refQScale = refEncData.m_rowStat[row].<wbr>diagQpScale;<br>
> + refQScale = refEncData.m_rowStat[row].<wbr>rowQpScale;<br>
> }<br>
><br>
> if (picType == I_SLICE || qScale >= refQScale)<br>
> @@ -2231,7 +2231,7 @@<br>
> }<br>
> else if (picType == P_SLICE)<br>
> {<br>
> - intraCostForPendingCus = curEncData.m_rowStat[row].<wbr>intraSatdForVbv<br>
> - curEncData.m_rowStat[row].<wbr>diagIntraSatd;<br>
> + intraCostForPendingCus = curEncData.m_rowStat[row].<wbr>intraSatdForVbv<br>
> - curEncData.m_rowStat[row].<wbr>rowIntraSatd;<br>
> intraCostForPendingCus >>= X265_DEPTH - 8;<br>
> /* Our QP is lower than the reference! */<br>
> double pred_intra = predictSize(rce->rowPred[1], qScale,<br>
> intraCostForPendingCus);<br>
> @@ -2246,16 +2246,16 @@<br>
> return totalSatdBits + encodedBitsSoFar;<br>
> }<br>
><br>
> -int RateControl::<wbr>rowDiagonalVbvRateControl(<wbr>Frame* curFrame, uint32_t<br>
> row, RateControlEntry* rce, double& qpVbv)<br>
> +int RateControl::<wbr>rowVbvRateControl(Frame* curFrame, uint32_t row,<br>
> RateControlEntry* rce, double& qpVbv)<br>
> {<br>
> FrameData& curEncData = *curFrame->m_encData;<br>
> double qScaleVbv = x265_qp2qScale(qpVbv);<br>
> - uint64_t rowSatdCost = curEncData.m_rowStat[row].<wbr>diagSatd;<br>
> + uint64_t rowSatdCost = curEncData.m_rowStat[row].<wbr>rowSatd;<br>
> double encodedBits = curEncData.m_rowStat[row].<wbr>encodedBits;<br>
><br>
> - if (row == 1)<br>
> + if (m_param->bEnableWavefront && row == 1)<br>
> {<br>
> - rowSatdCost += curEncData.m_rowStat[0].<wbr>diagSatd;<br>
> + rowSatdCost += curEncData.m_rowStat[0].<wbr>rowSatd;<br>
> encodedBits += curEncData.m_rowStat[0].<wbr>encodedBits;<br>
> }<br>
> rowSatdCost >>= X265_DEPTH - 8;<br>
> @@ -2263,11 +2263,11 @@<br>
> if (curEncData.m_slice->m_<wbr>sliceType != I_SLICE)<br>
> {<br>
> Frame* refFrame = curEncData.m_slice->m_<wbr>refFrameList[0][0];<br>
> - if (qpVbv < refFrame->m_encData->m_<wbr>rowStat[row].diagQp)<br>
> + if (qpVbv < refFrame->m_encData->m_<wbr>rowStat[row].rowQp)<br>
> {<br>
> - uint64_t intraRowSatdCost = curEncData.m_rowStat[row].<br>
> diagIntraSatd;<br>
> - if (row == 1)<br>
> - intraRowSatdCost += curEncData.m_rowStat[0].<br>
> diagIntraSatd;<br>
> + uint64_t intraRowSatdCost = curEncData.m_rowStat[row].<br>
> rowIntraSatd;<br>
> + if (m_param->bEnableWavefront && row == 1)<br>
> + intraRowSatdCost += curEncData.m_rowStat[0].<wbr>rowIntraSatd;<br>
> intraRowSatdCost >>= X265_DEPTH - 8;<br>
> updatePredictor(rce->rowPred[<wbr>1], qScaleVbv,<br>
> (double)intraRowSatdCost, encodedBits);<br>
> }<br>
> @@ -2328,7 +2328,7 @@<br>
> }<br>
><br>
> while (qpVbv > qpMin<br>
> - && (qpVbv > curEncData.m_rowStat[0].diagQp ||<br>
> m_singleFrameVbv)<br>
> + && (qpVbv > curEncData.m_rowStat[0].rowQp ||<br>
> m_singleFrameVbv)<br>
> && (((accFrameBits < rce->frameSizePlanned * 0.8f && qpVbv<br>
> <= prevRowQp)<br>
> || accFrameBits < (rce->bufferFill - m_bufferSize +<br>
> m_bufferRate) * 1.1)<br>
> && (!m_param->rc.bStrictCbr ? 1 : abrOvershoot < 0)))<br>
> @@ -2348,7 +2348,7 @@<br>
> accFrameBits = predictRowsSizeSum(curFrame, rce, qpVbv,<br>
> encodedBitsSoFar);<br>
> abrOvershoot = (accFrameBits + m_totalBits -<br>
> m_wantedBitsWindow) / totalBitsNeeded;<br>
> }<br>
> - if (qpVbv > curEncData.m_rowStat[0].diagQp &&<br>
> + if (qpVbv > curEncData.m_rowStat[0].rowQp &&<br>
> abrOvershoot < -0.1 && timeDone > 0.5 && accFrameBits <<br>
> rce->frameSizePlanned - rcTol)<br>
> {<br>
> qpVbv -= stepSize;<br>
> diff -r bc911034c2a0 -r f9e7422416c9 source/encoder/ratecontrol.h<br>
> --- a/source/encoder/ratecontrol.h Tue Oct 25 11:32:10 2016 +0530<br>
> +++ b/source/encoder/ratecontrol.h Thu Oct 13 15:22:44 2016 +0530<br>
> @@ -243,7 +243,7 @@<br>
> int rateControlStart(Frame* curFrame, RateControlEntry* rce,<br>
> Encoder* enc);<br>
> void rateControlUpdateStats(<wbr>RateControlEntry* rce);<br>
> int rateControlEnd(Frame* curFrame, int64_t bits, RateControlEntry*<br>
> rce);<br>
> - int rowDiagonalVbvRateControl(<wbr>Frame* curFrame, uint32_t row,<br>
> RateControlEntry* rce, double& qpVbv);<br>
> + int rowVbvRateControl(Frame* curFrame, uint32_t row,<br>
> RateControlEntry* rce, double& qpVbv);<br>
> int rateControlSliceType(int frameNum);<br>
> bool cuTreeReadFor2Pass(Frame* curFrame);<br>
> void hrdFullness(<wbr>SEIBufferingPeriod* sei);<br>
> diff -r bc911034c2a0 -r f9e7422416c9 source/test/rate-control-<wbr>tests.txt<br>
> --- a/source/test/rate-control-<wbr>tests.txt Tue Oct 25 11:32:10 2016<br>
> +0530<br>
> +++ b/source/test/rate-control-<wbr>tests.txt Thu Oct 13 15:22:44 2016<br>
> +0530<br>
> @@ -21,6 +21,9 @@<br>
> big_buck_bunny_360p24.y4m,--<wbr>preset medium --bitrate 400 --vbv-bufsize<br>
> 600 --vbv-maxrate 600 --aud --hrd --tune fast-decode<br>
> sita_1920x1080_30.yuv,--preset superfast --crf 25 --vbv-bufsize 3000<br>
> --vbv-maxrate 4000 --vbv-bufsize 5000 --hrd --crf-max 30<br>
> sita_1920x1080_30.yuv,--preset superfast --bitrate 3000 --vbv-bufsize<br>
> 3000 --vbv-maxrate 3000 --aud --strict-cbr<br>
> +BasketballDrive_1920x1080_50.<wbr>y4m,--preset ultrafast --bitrate 3000<br>
> --vbv-bufsize 3000 --vbv-maxrate 3000 --no-wpp<br>
> +big_buck_bunny_360p24.y4m,--<wbr>preset medium --bitrate 400 --vbv-bufsize<br>
> 600 --vbv-maxrate 600 --no-wpp --aud --hrd --tune fast-decode<br>
> +sita_1920x1080_30.yuv,--<wbr>preset superfast --bitrate 3000 --vbv-bufsize<br>
> 3000 --vbv-maxrate 3000 --aud --strict-cbr --no-wpp<br>
><br>
><br>
><br>
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End of x265-devel Digest, Vol 41, Issue 42<br>
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</blockquote></div><br></div>