<div dir="ltr">Pushed to master</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 9, 2020 at 1:21 PM Kirithika Kalirathnam <<a href="mailto:kirithika@multicorewareinc.com">kirithika@multicorewareinc.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">From f83db031a5308bb6bc2ca54dd079e20630fc5701 Mon Sep 17 00:00:00 2001<br>From: Kirithika <<a href="mailto:kirithika@multicorewareinc.com" target="_blank">kirithika@multicorewareinc.com</a>><br>Date: Fri, 28 Aug 2020 09:20:47 +0530<br>Subject: [PATCH] Add real-time VBV fullness based QP tuning in VBV 2 pass<br><br>This commit enables real-time VBV fullness based 2nd pass QP tuning.<br>Experimental feature.Default disabled<br>---<br> doc/reST/cli.rst | 9 ++++<br> source/CMakeLists.txt | 2 +-<br> source/common/param.cpp | 13 +++++<br> source/encoder/ratecontrol.cpp | 98 +++++++++++++++++++---------------<br> source/encoder/slicetype.cpp | 14 ++---<br> source/x265.h | 5 ++<br> source/x265cli.cpp | 1 +<br> source/x265cli.h | 2 +<br> 8 files changed, 93 insertions(+), 51 deletions(-)<br><br>diff --git a/doc/reST/cli.rst b/doc/reST/cli.rst<br>index e6c628c36..7777ee49e 100755<br>--- a/doc/reST/cli.rst<br>+++ b/doc/reST/cli.rst<br>@@ -1977,6 +1977,15 @@ Quality, rate control and rate distortion options<br> <br> **Range of values:** 0 to 10<br> <br>+.. option:: --vbv-live-multi-pass, --no-vbv-live-multi-pass<br>+<br>+ It enables the Qp tuning at frame level based on real time VBV Buffer fullness<br>+ in the ratecontrol 2nd pass of multi pass mode to reduce the VBV violations.<br>+ It could only be enabled with rate control stat-read encodes with VBV and ABR<br>+ rate control mode.<br>+<br>+ Default disabled. **Experimental feature**<br>+<br> Quantization Options<br> ====================<br> <br>diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt<br>index d9ed3983e..5738c861c 100755<br>--- a/source/CMakeLists.txt<br>+++ b/source/CMakeLists.txt<br>@@ -29,7 +29,7 @@ option(NATIVE_BUILD "Target the build CPU" OFF)<br> option(STATIC_LINK_CRT "Statically link C runtime for release builds" OFF)<br> mark_as_advanced(FPROFILE_USE FPROFILE_GENERATE NATIVE_BUILD)<br> # X265_BUILD must be incremented each time the public API is changed<br>-set(X265_BUILD 196)<br>+set(X265_BUILD 197)<br> configure_file("${PROJECT_SOURCE_DIR}/<a href="http://x265.def.in" target="_blank">x265.def.in</a>"<br> "${PROJECT_BINARY_DIR}/x265.def")<br> configure_file("${PROJECT_SOURCE_DIR}/<a href="http://x265_config.h.in" target="_blank">x265_config.h.in</a>"<br>diff --git a/source/common/param.cpp b/source/common/param.cpp<br>index 845c38bd2..b3001fcf6 100755<br>--- a/source/common/param.cpp<br>+++ b/source/common/param.cpp<br>@@ -288,6 +288,7 @@ void x265_param_default(x265_param* param)<br> param->bResetZoneConfig = 1;<br> param->reconfigWindowSize = 0;<br> param->decoderVbvMaxRate = 0;<br>+ param->bliveVBV2pass = 0;<br> <br> /* Video Usability Information (VUI) */<br> param->vui.aspectRatioIdc = 0;<br>@@ -1375,6 +1376,7 @@ int x265_param_parse(x265_param* p, const char* name, const char* value)<br> sscanf(value, "%d,%d,%d", &p->hmeRange[0], &p->hmeRange[1], &p->hmeRange[2]);<br> p->bEnableHME = true;<br> }<br>+ OPT("vbv-live-multi-pass") p->bliveVBV2pass = atobool(value);<br> else<br> return X265_PARAM_BAD_NAME;<br> }<br>@@ -1817,6 +1819,15 @@ int x265_check_params(x265_param* param)<br> CHECK(param->confWinRightOffset < 0, "Conformance Window Right Offset must be 0 or greater");<br> CHECK(param->confWinBottomOffset < 0, "Conformance Window Bottom Offset must be 0 or greater");<br> CHECK(param->decoderVbvMaxRate < 0, "Invalid Decoder Vbv Maxrate. Value can not be less than zero");<br>+ if (param->bliveVBV2pass)<br>+ {<br>+ CHECK((param->rc.bStatRead == 0), "Live VBV in multi pass option requires rate control 2 pass to be enabled");<br>+ if ((param->rc.vbvMaxBitrate <= 0 || param->rc.vbvBufferSize <= 0))<br>+ {<br>+ param->bliveVBV2pass = 0;<br>+ x265_log(param, X265_LOG_WARNING, "Live VBV enabled without VBV settings.Disabling live VBV in 2 pass\n");<br>+ }<br>+ }<br> return check_failed;<br> }<br> <br>@@ -2238,6 +2249,7 @@ char *x265_param2string(x265_param* p, int padx, int pady)<br> s += sprintf(s, " scenecut-window=%d qp-delta-ref=%f qp-delta-nonref=%f", p->scenecutWindow, p->refQpDelta, p->nonRefQpDelta);<br> s += sprintf(s, "conformance-window-offsets right=%d bottom=%d", p->confWinRightOffset, p->confWinBottomOffset);<br> s += sprintf(s, " decoder-max-rate=%d", p->decoderVbvMaxRate);<br>+ BOOL(p->bliveVBV2pass, "vbv-live-multi-pass");<br> #undef BOOL<br> return buf;<br> }<br>@@ -2593,6 +2605,7 @@ void x265_copy_params(x265_param* dst, x265_param* src)<br> <br> dst->confWinRightOffset = src->confWinRightOffset;<br> dst->confWinBottomOffset = src->confWinBottomOffset;<br>+ dst->bliveVBV2pass = src->bliveVBV2pass;<br> #ifdef SVT_HEVC<br> memcpy(dst->svtHevcParam, src->svtHevcParam, sizeof(EB_H265_ENC_CONFIGURATION));<br> #endif<br>diff --git a/source/encoder/ratecontrol.cpp b/source/encoder/ratecontrol.cpp<br>index 82d7c4f2a..8e9187e8a 100644<br>--- a/source/encoder/ratecontrol.cpp<br>+++ b/source/encoder/ratecontrol.cpp<br>@@ -1755,34 +1755,32 @@ double RateControl::rateEstimateQscale(Frame* curFrame, RateControlEntry *rce)<br> g_sliceTypeToChar[m_sliceType], g_sliceTypeToChar[rce->sliceType]);<br> }<br> }<br>- else<br>+<br>+ if ((m_param->bliveVBV2pass && m_param->rc.rateControlMode == X265_RC_ABR) || m_isAbr)<br> {<br>- if (m_isAbr)<br>+ int pos = m_sliderPos % s_slidingWindowFrames;<br>+ int addPos = (pos + s_slidingWindowFrames - 1) % s_slidingWindowFrames;<br>+ if (m_sliderPos > s_slidingWindowFrames)<br> {<br>- int pos = m_sliderPos % s_slidingWindowFrames;<br>- int addPos = (pos + s_slidingWindowFrames - 1) % s_slidingWindowFrames;<br>- if (m_sliderPos > s_slidingWindowFrames)<br>- {<br>- const static double base = pow(0.5, s_slidingWindowFrames - 1);<br>- m_movingAvgSum -= m_lastRemovedSatdCost * base;<br>- m_movingAvgSum *= 0.5;<br>- m_movingAvgSum += m_satdCostWindow[addPos];<br>- }<br>- else if (m_sliderPos == s_slidingWindowFrames)<br>- {<br>- m_movingAvgSum += m_satdCostWindow[addPos];<br>- }<br>- else if (m_sliderPos > 0)<br>- {<br>- m_movingAvgSum += m_satdCostWindow[addPos];<br>- m_movingAvgSum *= 0.5;<br>- }<br>-<br>- rce->movingAvgSum = m_movingAvgSum;<br>- m_lastRemovedSatdCost = m_satdCostWindow[pos];<br>- m_satdCostWindow[pos] = rce->lastSatd;<br>- m_sliderPos++;<br>+ const static double base = pow(0.5, s_slidingWindowFrames - 1);<br>+ m_movingAvgSum -= m_lastRemovedSatdCost * base;<br>+ m_movingAvgSum *= 0.5;<br>+ m_movingAvgSum += m_satdCostWindow[addPos];<br>+ }<br>+ else if (m_sliderPos == s_slidingWindowFrames)<br>+ {<br>+ m_movingAvgSum += m_satdCostWindow[addPos];<br> }<br>+ else if (m_sliderPos > 0)<br>+ {<br>+ m_movingAvgSum += m_satdCostWindow[addPos];<br>+ m_movingAvgSum *= 0.5;<br>+ }<br>+<br>+ rce->movingAvgSum = m_movingAvgSum;<br>+ m_lastRemovedSatdCost = m_satdCostWindow[pos];<br>+ m_satdCostWindow[pos] = rce->lastSatd;<br>+ m_sliderPos++;<br> }<br> <br> if (m_sliceType == B_SLICE)<br>@@ -1887,7 +1885,7 @@ double RateControl::rateEstimateQscale(Frame* curFrame, RateControlEntry *rce)<br> qScale = x265_clip3(lqmin, lqmax, qScale);<br> }<br> <br>- if (!m_2pass)<br>+ if (!m_2pass || m_param->bliveVBV2pass)<br> {<br> /* clip qp to permissible range after vbv-lookahead estimation to avoid possible <br> * mispredictions by initial frame size predictors */<br>@@ -1955,7 +1953,9 @@ double RateControl::rateEstimateQscale(Frame* curFrame, RateControlEntry *rce)<br> else<br> q /= zone->bitrateFactor;<br> }<br>- q /= x265_clip3(0.5, 2.0, (double)(abrBuffer - diff) / abrBuffer);<br>+ /*Existing ABR conformance check may not be valid with real time VBV*/<br>+ if(!m_param->bliveVBV2pass)<br>+ q /= x265_clip3(0.5, 2.0, (double)(abrBuffer - diff) / abrBuffer);<br> if (m_expectedBitsSum > 0)<br> {<br> /* Adjust quant based on the difference between<br>@@ -1988,24 +1988,34 @@ double RateControl::rateEstimateQscale(Frame* curFrame, RateControlEntry *rce)<br> <br> if (m_isVbv)<br> {<br>- /* Do not overflow vbv */<br>- double expectedSize = qScale2bits(rce, q);<br>- double expectedVbv = m_bufferFill + m_bufferRate - expectedSize;<br>- double expectedFullness = rce->expectedVbv / m_bufferSize;<br>- double qmax = q * (2 - expectedFullness);<br>- double sizeConstraint = 1 + expectedFullness;<br>- qmax = X265_MAX(qmax, rce->newQScale);<br>- if (expectedFullness < .05)<br>- qmax = lmax;<br>- qmax = X265_MIN(qmax, lmax);<br>- while (((expectedVbv < rce->expectedVbv/sizeConstraint) && (q < qmax)) ||<br>+ if (!m_param->bliveVBV2pass)<br>+ {<br>+ /* Do not overflow vbv */<br>+ double expectedSize = qScale2bits(rce, q);<br>+ double expectedVbv = m_bufferFill + m_bufferRate - expectedSize;<br>+ double expectedFullness = rce->expectedVbv / m_bufferSize;<br>+ double qmax = q * (2 - expectedFullness);<br>+ double sizeConstraint = 1 + expectedFullness;<br>+ qmax = X265_MAX(qmax, rce->newQScale);<br>+ if (expectedFullness < .05)<br>+ qmax = lmax;<br>+ qmax = X265_MIN(qmax, lmax);<br>+ while (((expectedVbv < rce->expectedVbv / sizeConstraint) && (q < qmax)) ||<br> ((expectedVbv < 0) && (q < lmax)))<br>+ {<br>+ q *= 1.05;<br>+ expectedSize = qScale2bits(rce, q);<br>+ expectedVbv = m_bufferFill + m_bufferRate - expectedSize;<br>+ }<br>+ }<br>+ else<br> {<br>- q *= 1.05;<br>- expectedSize = qScale2bits(rce, q);<br>- expectedVbv = m_bufferFill + m_bufferRate - expectedSize;<br>+ /* clip qp to permissible range after vbv-lookahead estimation to avoid possible<br>+ * mispredictions by Rate Control pass 1 statistics analysis */<br>+ q = clipQscale(curFrame, rce, q);<br> }<br> }<br>+<br> q = x265_clip3(lmin, lmax, q);<br> }<br> else<br>@@ -2379,7 +2389,7 @@ double RateControl::clipQscale(Frame* curFrame, RateControlEntry* rce, double q)<br> }<br> /* Try to get the buffer not more than 80% filled, but don't set an impossible goal. */<br> targetFill = x265_clip3(m_bufferSize * (1 - 0.2 * finalDur), m_bufferSize, m_bufferFill - totalDuration * m_vbvMaxRate * 0.5);<br>- if (m_isCbr && bufferFillCur > targetFill && !m_isSceneTransition)<br>+ if ((m_isCbr || m_2pass) && bufferFillCur > targetFill && !m_isSceneTransition)<br> {<br> q /= 1.01;<br> loopTerminate |= 2;<br>@@ -2432,7 +2442,7 @@ double RateControl::clipQscale(Frame* curFrame, RateControlEntry* rce, double q)<br> * lookahead vbv reduces its qscale by half its value. Be on safer side and avoid drastic <br> * qscale reductions for frames high in complexity */<br> bool mispredCheck = rce->movingAvgSum && m_currentSatd >= rce->movingAvgSum && q <= q0 / 2;<br>- if (!m_isCbr || (m_isAbr && mispredCheck))<br>+ if (!m_isCbr || ((m_isAbr || m_2pass) && mispredCheck))<br> q = X265_MAX(q0, q);<br> <br> if (m_rateFactorMaxIncrement)<br>@@ -2442,7 +2452,7 @@ double RateControl::clipQscale(Frame* curFrame, RateControlEntry* rce, double q)<br> return x265_clip3(lmin, qmax, q);<br> }<br> }<br>- if (m_2pass)<br>+ if (!curFrame && m_2pass)<br> {<br> double min = log(lmin);<br> double max = log(lmax);<br>diff --git a/source/encoder/slicetype.cpp b/source/encoder/slicetype.cpp<br>index 4e52e584c..0adb0d0db 100644<br>--- a/source/encoder/slicetype.cpp<br>+++ b/source/encoder/slicetype.cpp<br>@@ -1497,14 +1497,15 @@ void Lookahead::slicetypeDecide()<br> }<br> }<br> <br>- if (m_lastNonB && !m_param->rc.bStatRead &&<br>+ if (m_lastNonB &&<br> ((m_param->bFrameAdaptive && m_param->bframes) ||<br> m_param->rc.cuTree || m_param->scenecutThreshold || m_param->bHistBasedSceneCut ||<br> (m_param->lookaheadDepth && m_param->rc.vbvBufferSize)))<br> {<br>- slicetypeAnalyse(frames, false);<br>+ if(!m_param->rc.bStatRead)<br>+ slicetypeAnalyse(frames, false);<br> bool bIsVbv = m_param->rc.vbvBufferSize > 0 && m_param->rc.vbvMaxBitrate > 0;<br>- if (m_param->analysisLoad && m_param->scaleFactor && bIsVbv)<br>+ if ((m_param->analysisLoad && m_param->scaleFactor && bIsVbv) || m_param->bliveVBV2pass)<br> {<br> int numFrames;<br> for (numFrames = 0; numFrames < maxSearch; numFrames++)<br>@@ -1749,7 +1750,7 @@ void Lookahead::slicetypeDecide()<br> }<br> }<br> <br>- bool isKeyFrameAnalyse = (m_param->rc.cuTree || (m_param->rc.vbvBufferSize && m_param->lookaheadDepth)) && !m_param->rc.bStatRead;<br>+ bool isKeyFrameAnalyse = (m_param->rc.cuTree || (m_param->rc.vbvBufferSize && m_param->lookaheadDepth));<br> if (isKeyFrameAnalyse && IS_X265_TYPE_I(m_lastNonB->sliceType))<br> {<br> m_inputLock.acquire();<br>@@ -1764,9 +1765,10 @@ void Lookahead::slicetypeDecide()<br> m_inputLock.release();<br> <br> frames[j + 1] = NULL;<br>- slicetypeAnalyse(frames, true);<br>+ if (!m_param->rc.bStatRead)<br>+ slicetypeAnalyse(frames, true);<br> bool bIsVbv = m_param->rc.vbvBufferSize > 0 && m_param->rc.vbvMaxBitrate > 0;<br>- if (m_param->analysisLoad && m_param->scaleFactor && bIsVbv)<br>+ if ((m_param->analysisLoad && m_param->scaleFactor && bIsVbv) || m_param->bliveVBV2pass)<br> {<br> int numFrames;<br> for (numFrames = 0; numFrames < maxSearch; numFrames++)<br>diff --git a/source/x265.h b/source/x265.h<br>index 0ffa600b0..3fc464f6d 100644<br>--- a/source/x265.h<br>+++ b/source/x265.h<br>@@ -1920,6 +1920,11 @@ typedef struct x265_param<br> <br> /* Maxrate that could be signaled to the decoder. Default 0. API only. */<br> int decoderVbvMaxRate;<br>+<br>+ /*Enables Qp tuning with respect to real time VBV buffer fullness in rate<br>+ control 2 pass. Experimental.Default is disabled*/<br>+ int bliveVBV2pass;<br>+<br> } x265_param;<br> <br> /* x265_param_alloc:<br>diff --git a/source/x265cli.cpp b/source/x265cli.cpp<br>index 6e8e0e661..0cf2d815c 100755<br>--- a/source/x265cli.cpp<br>+++ b/source/x265cli.cpp<br>@@ -221,6 +221,7 @@ namespace X265_NS {<br> " - 3 : Nth pass, overwrites stats file\n");<br> H0(" --[no-]multi-pass-opt-analysis Refine analysis in 2 pass based on analysis information from pass 1\n");<br> H0(" --[no-]multi-pass-opt-distortion Use distortion of CTU from pass 1 to refine qp in 2 pass\n");<br>+ H0(" --[no-]vbv-live-multi-pass Enable realtime VBV in rate control 2 pass.Default %s\n", OPT(param->bliveVBV2pass));<br> H0(" --stats Filename for stats file in multipass pass rate control. Default x265_2pass.log\n");<br> H0(" --[no-]analyze-src-pics Motion estimation uses source frame planes. Default disable\n");<br> H0(" --[no-]slow-firstpass Enable a slow first pass in a multipass rate control mode. Default %s\n", OPT(param->rc.bEnableSlowFirstPass));<br>diff --git a/source/x265cli.h b/source/x265cli.h<br>index 311f06935..3e2fd5e6d 100644<br>--- a/source/x265cli.h<br>+++ b/source/x265cli.h<br>@@ -284,6 +284,8 @@ static const struct option long_options[] =<br> { "no-multi-pass-opt-analysis", no_argument, NULL, 0 },<br> { "multi-pass-opt-distortion", no_argument, NULL, 0 },<br> { "no-multi-pass-opt-distortion", no_argument, NULL, 0 },<br>+ { "vbv-live-multi-pass", no_argument, NULL, 0 },<br>+ { "no-vbv-live-multi-pass", no_argument, NULL, 0 },<br> { "slow-firstpass", no_argument, NULL, 0 },<br> { "no-slow-firstpass", no_argument, NULL, 0 },<br> { "multi-pass-opt-rps", no_argument, NULL, 0 },<br>-- <br>2.28.0.windows.1<br><br><div><div dir="ltr"><div dir="ltr"><i>Thanks,</i><div><i>Kirithika</i></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 9, 2020 at 10:52 AM Kirithika Kalirathnam <<a href="mailto:kirithika@multicorewareinc.com" target="_blank">kirithika@multicorewareinc.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr">On Mon, Sep 7, 2020 at 6:19 PM Aruna Matheswaran <<a href="mailto:aruna@multicorewareinc.com" target="_blank">aruna@multicorewareinc.com</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Sep 4, 2020 at 5:44 PM Kirithika Kalirathnam <<a href="mailto:kirithika@multicorewareinc.com" target="_blank">kirithika@multicorewareinc.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">From f1391f094c9c3c0502624532f751219d126905aa Mon Sep 17 00:00:00 2001<br>From: Kirithika <<a href="mailto:kirithika@multicorewareinc.com" target="_blank">kirithika@multicorewareinc.com</a>><br>Date: Fri, 28 Aug 2020 09:20:47 +0530<br>Subject: [PATCH] Add real-time VBV fullness based QP tuning in VBV 2 pass<br><br>This commit enables real-time VBV fullness based 2nd pass QP tuning.<br>Experimental feature.Default disabled<br>---<br> doc/reST/cli.rst | 9 +++<br> source/CMakeLists.txt | 2 +-<br> source/common/param.cpp | 12 ++++<br> source/encoder/ratecontrol.cpp | 100 ++++++++++++++++++---------------<br> source/encoder/slicetype.cpp | 14 +++--<br> source/x265.h | 4 ++<br> source/x265cli.cpp | 1 +<br> source/x265cli.h | 2 +<br> 8 files changed, 92 insertions(+), 52 deletions(-)<br><br>diff --git a/doc/reST/cli.rst b/doc/reST/cli.rst<br>index e6c628c36..2a4b25aca 100755<br>--- a/doc/reST/cli.rst<br>+++ b/doc/reST/cli.rst<br>@@ -1977,6 +1977,15 @@ Quality, rate control and rate distortion options<br> <br> **Range of values:** 0 to 10<br> <br>+.. option:: --realtime-vbv-2pass, --no-realtime-vbv-2pass<br></div></blockquote><div>[AM] Can we find a better alternate for the CLI option? --real-time-vbv-2-pass looks a bit long. </div><div>The term 2pass is a little confusing. Technically it is multi-pass; not just 2pass.</div></div></div></blockquote><div>Ok.I shall update the name to vbv-live-multi-pass,as it is self-explanatory though it's a bit longer. </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">+<br>+ It enables the Qp tuning at frame level based on real time VBV Buffer fullness<br>+ in the ratecontrol second pass to reduce the VBV violations.<br>+ It could only be enabled with rate control pass 2 encodes with VBV and ABR<br>+ rate control mode.<br>+<br></div></blockquote><div>[AM] why not for CRF rate-control mode? </div></div></div></blockquote><div>Currently,we have tested the feature only for ABR case.We shall extend this to CRF mode also in future. </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">+ Default disabled. **Experimental feature**<br>+<br> Quantization Options<br> ====================<br> <br>diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt<br>index d9ed3983e..5738c861c 100755<br>--- a/source/CMakeLists.txt<br>+++ b/source/CMakeLists.txt<br>@@ -29,7 +29,7 @@ option(NATIVE_BUILD "Target the build CPU" OFF)<br> option(STATIC_LINK_CRT "Statically link C runtime for release builds" OFF)<br> mark_as_advanced(FPROFILE_USE FPROFILE_GENERATE NATIVE_BUILD)<br> # X265_BUILD must be incremented each time the public API is changed<br>-set(X265_BUILD 196)<br>+set(X265_BUILD 197)<br> configure_file("${PROJECT_SOURCE_DIR}/<a href="http://x265.def.in" target="_blank">x265.def.in</a>"<br> "${PROJECT_BINARY_DIR}/x265.def")<br> configure_file("${PROJECT_SOURCE_DIR}/<a href="http://x265_config.h.in" target="_blank">x265_config.h.in</a>"<br>diff --git a/source/common/param.cpp b/source/common/param.cpp<br>index 845c38bd2..fc0425905 100755<br>--- a/source/common/param.cpp<br>+++ b/source/common/param.cpp<br>@@ -288,6 +288,7 @@ void x265_param_default(x265_param* param)<br> param->bResetZoneConfig = 1;<br> param->reconfigWindowSize = 0;<br> param->decoderVbvMaxRate = 0;<br>+ param->rc.bRealtimeVBV2pass = 0;<br> <br> /* Video Usability Information (VUI) */<br> param->vui.aspectRatioIdc = 0;<br>@@ -1375,6 +1376,7 @@ int x265_param_parse(x265_param* p, const char* name, const char* value)<br> sscanf(value, "%d,%d,%d", &p->hmeRange[0], &p->hmeRange[1], &p->hmeRange[2]);<br> p->bEnableHME = true;<br> }<br>+ OPT("realtime-vbv-2pass") p->rc.bRealtimeVBV2pass = atobool(value);<br> else<br> return X265_PARAM_BAD_NAME;<br> }<br>@@ -1817,6 +1819,15 @@ int x265_check_params(x265_param* param)<br> CHECK(param->confWinRightOffset < 0, "Conformance Window Right Offset must be 0 or greater");<br> CHECK(param->confWinBottomOffset < 0, "Conformance Window Bottom Offset must be 0 or greater");<br> CHECK(param->decoderVbvMaxRate < 0, "Invalid Decoder Vbv Maxrate. Value can not be less than zero");<br>+ if (param->rc.bRealtimeVBV2pass)<br>+ {<br>+ CHECK((param->rc.bStatRead == 0), "Real time VBV in 2 pass option requires rate control 2 pass to be enabled");<br>+ if ((param->rc.vbvMaxBitrate <= 0 || param->rc.vbvBufferSize <= 0))<br>+ {<br>+ param->rc.bRealtimeVBV2pass = 0;<br>+ x265_log(param, X265_LOG_WARNING, "Real time VBV enabled without VBV settings.Disabling real time VBV in 2 pass\n");<br>+ }<br>+ }<br> return check_failed;<br> }<br> <br>@@ -2593,6 +2604,7 @@ void x265_copy_params(x265_param* dst, x265_param* src)<br> <br> dst->confWinRightOffset = src->confWinRightOffset;<br> dst->confWinBottomOffset = src->confWinBottomOffset;<br>+ dst->rc.bRealtimeVBV2pass = src->rc.bRealtimeVBV2pass;<br> #ifdef SVT_HEVC<br> memcpy(dst->svtHevcParam, src->svtHevcParam, sizeof(EB_H265_ENC_CONFIGURATION));<br> #endif<br>diff --git a/source/encoder/ratecontrol.cpp b/source/encoder/ratecontrol.cpp<br>index 82d7c4f2a..ebf374759 100644<br>--- a/source/encoder/ratecontrol.cpp<br>+++ b/source/encoder/ratecontrol.cpp<br>@@ -1755,34 +1755,32 @@ double RateControl::rateEstimateQscale(Frame* curFrame, RateControlEntry *rce)<br> g_sliceTypeToChar[m_sliceType], g_sliceTypeToChar[rce->sliceType]);<br> }<br> }<br>- else<br>+<br>+ if ((m_param->rc.bRealtimeVBV2pass && m_param->rc.rateControlMode == X265_RC_ABR) || m_isAbr)<br> {<br>- if (m_isAbr)<br>+ int pos = m_sliderPos % s_slidingWindowFrames;<br>+ int addPos = (pos + s_slidingWindowFrames - 1) % s_slidingWindowFrames;<br>+ if (m_sliderPos > s_slidingWindowFrames)<br> {<br>- int pos = m_sliderPos % s_slidingWindowFrames;<br>- int addPos = (pos + s_slidingWindowFrames - 1) % s_slidingWindowFrames;<br>- if (m_sliderPos > s_slidingWindowFrames)<br>- {<br>- const static double base = pow(0.5, s_slidingWindowFrames - 1);<br>- m_movingAvgSum -= m_lastRemovedSatdCost * base;<br>- m_movingAvgSum *= 0.5;<br>- m_movingAvgSum += m_satdCostWindow[addPos];<br>- }<br>- else if (m_sliderPos == s_slidingWindowFrames)<br>- {<br>- m_movingAvgSum += m_satdCostWindow[addPos];<br>- }<br>- else if (m_sliderPos > 0)<br>- {<br>- m_movingAvgSum += m_satdCostWindow[addPos];<br>- m_movingAvgSum *= 0.5;<br>- }<br>-<br>- rce->movingAvgSum = m_movingAvgSum;<br>- m_lastRemovedSatdCost = m_satdCostWindow[pos];<br>- m_satdCostWindow[pos] = rce->lastSatd;<br>- m_sliderPos++;<br>+ const static double base = pow(0.5, s_slidingWindowFrames - 1);<br>+ m_movingAvgSum -= m_lastRemovedSatdCost * base;<br>+ m_movingAvgSum *= 0.5;<br>+ m_movingAvgSum += m_satdCostWindow[addPos];<br>+ }<br>+ else if (m_sliderPos == s_slidingWindowFrames)<br>+ {<br>+ m_movingAvgSum += m_satdCostWindow[addPos];<br> }<br>+ else if (m_sliderPos > 0)<br>+ {<br>+ m_movingAvgSum += m_satdCostWindow[addPos];<br>+ m_movingAvgSum *= 0.5;<br>+ }<br>+<br>+ rce->movingAvgSum = m_movingAvgSum;<br>+ m_lastRemovedSatdCost = m_satdCostWindow[pos];<br>+ m_satdCostWindow[pos] = rce->lastSatd;<br>+ m_sliderPos++;<br> }<br> <br> if (m_sliceType == B_SLICE)<br>@@ -1887,7 +1885,7 @@ double RateControl::rateEstimateQscale(Frame* curFrame, RateControlEntry *rce)<br> qScale = x265_clip3(lqmin, lqmax, qScale);<br> }<br> <br>- if (!m_2pass)<br>+ if (!m_2pass || m_param->rc.bRealtimeVBV2pass)<br> {<br> /* clip qp to permissible range after vbv-lookahead estimation to avoid possible <br> * mispredictions by initial frame size predictors */<br>@@ -1955,7 +1953,9 @@ double RateControl::rateEstimateQscale(Frame* curFrame, RateControlEntry *rce)<br> else<br> q /= zone->bitrateFactor;<br> }<br>- q /= x265_clip3(0.5, 2.0, (double)(abrBuffer - diff) / abrBuffer);<br>+ /*Existing ABR conformance check may not be valid with real time VBV*/<br>+ if(!m_param->rc.bRealtimeVBV2pass)<br>+ q /= x265_clip3(0.5, 2.0, (double)(abrBuffer - diff) / abrBuffer);<br> if (m_expectedBitsSum > 0)<br> {<br> /* Adjust quant based on the difference between<br>@@ -1988,24 +1988,34 @@ double RateControl::rateEstimateQscale(Frame* curFrame, RateControlEntry *rce)<br> <br> if (m_isVbv)<br> {<br>- /* Do not overflow vbv */<br>- double expectedSize = qScale2bits(rce, q);<br>- double expectedVbv = m_bufferFill + m_bufferRate - expectedSize;<br>- double expectedFullness = rce->expectedVbv / m_bufferSize;<br>- double qmax = q * (2 - expectedFullness);<br>- double sizeConstraint = 1 + expectedFullness;<br>- qmax = X265_MAX(qmax, rce->newQScale);<br>- if (expectedFullness < .05)<br>- qmax = lmax;<br>- qmax = X265_MIN(qmax, lmax);<br>- while (((expectedVbv < rce->expectedVbv/sizeConstraint) && (q < qmax)) ||<br>+ if (!m_param->rc.bRealtimeVBV2pass)<br>+ {<br>+ /* Do not overflow vbv */<br>+ double expectedSize = qScale2bits(rce, q);<br>+ double expectedVbv = m_bufferFill + m_bufferRate - expectedSize;<br>+ double expectedFullness = rce->expectedVbv / m_bufferSize;<br>+ double qmax = q * (2 - expectedFullness);<br>+ double sizeConstraint = 1 + expectedFullness;<br>+ qmax = X265_MAX(qmax, rce->newQScale);<br>+ if (expectedFullness < .05)<br>+ qmax = lmax;<br>+ qmax = X265_MIN(qmax, lmax);<br>+ while (((expectedVbv < rce->expectedVbv / sizeConstraint) && (q < qmax)) ||<br> ((expectedVbv < 0) && (q < lmax)))<br>+ {<br>+ q *= 1.05;<br>+ expectedSize = qScale2bits(rce, q);<br>+ expectedVbv = m_bufferFill + m_bufferRate - expectedSize;<br>+ }<br>+ }<br>+ else<br> {<br>- q *= 1.05;<br>- expectedSize = qScale2bits(rce, q);<br>- expectedVbv = m_bufferFill + m_bufferRate - expectedSize;<br>+ /* clip qp to permissible range after vbv-lookahead estimation to avoid possible<br>+ * mispredictions by Rate Control pass 1 statistics analysis */<br>+ q = clipQscale(curFrame, rce, q);<br> }<br> }<br>+<br> q = x265_clip3(lmin, lmax, q);<br> }<br> else<br>@@ -2301,7 +2311,7 @@ double RateControl::clipQscale(Frame* curFrame, RateControlEntry* rce, double q)<br> double lmin = m_lmin[rce->sliceType];<br> double lmax = m_lmax[rce->sliceType];<br> double q0 = q;<br>- if (m_isVbv && m_currentSatd > 0 && curFrame)<br>+ if ((m_isVbv || m_param->rc.bRealtimeVBV2pass) && curFrame && m_currentSatd > 0 )<br> {<br></div></blockquote><div>[AM] Do we need to m_param->rc.bRealtimeVBV2pass check here? The call to clipQscale() is guarded by "m_param->rc.bRealtimeVBV2pass" from what I see.</div></div></div></blockquote><div>yeah,the check is redundant and I shall remove it. </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"> if (m_param->lookaheadDepth || m_param->rc.cuTree ||<br> (m_param->scenecutThreshold || m_param->bHistBasedSceneCut) ||<br>@@ -2379,7 +2389,7 @@ double RateControl::clipQscale(Frame* curFrame, RateControlEntry* rce, double q)<br> }<br> /* Try to get the buffer not more than 80% filled, but don't set an impossible goal. */<br> targetFill = x265_clip3(m_bufferSize * (1 - 0.2 * finalDur), m_bufferSize, m_bufferFill - totalDuration * m_vbvMaxRate * 0.5);<br>- if (m_isCbr && bufferFillCur > targetFill && !m_isSceneTransition)<br>+ if ((m_isCbr || m_2pass) && bufferFillCur > targetFill && !m_isSceneTransition)<br> {<br> q /= 1.01;<br> loopTerminate |= 2;<br>@@ -2432,7 +2442,7 @@ double RateControl::clipQscale(Frame* curFrame, RateControlEntry* rce, double q)<br> * lookahead vbv reduces its qscale by half its value. Be on safer side and avoid drastic <br> * qscale reductions for frames high in complexity */<br> bool mispredCheck = rce->movingAvgSum && m_currentSatd >= rce->movingAvgSum && q <= q0 / 2;<br>- if (!m_isCbr || (m_isAbr && mispredCheck))<br>+ if (!m_isCbr || ((m_isAbr || m_2pass) && mispredCheck))<br></div></blockquote><div>[AM] Same question here. </div></div></div></blockquote><div>m_isAbr is not set with 2 pass encodes.Hence I have added an additional check here.</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"> q = X265_MAX(q0, q);<br> <br> if (m_rateFactorMaxIncrement)<br>@@ -2442,7 +2452,7 @@ double RateControl::clipQscale(Frame* curFrame, RateControlEntry* rce, double q)<br> return x265_clip3(lmin, qmax, q);<br> }<br> }<br>- if (m_2pass)<br>+ if (!curFrame && m_2pass)<br> {<br> double min = log(lmin);<br> double max = log(lmax);<br>diff --git a/source/encoder/slicetype.cpp b/source/encoder/slicetype.cpp<br>index 4e52e584c..69f3b0ad1 100644<br>--- a/source/encoder/slicetype.cpp<br>+++ b/source/encoder/slicetype.cpp<br>@@ -1497,14 +1497,15 @@ void Lookahead::slicetypeDecide()<br> }<br> }<br> <br>- if (m_lastNonB && !m_param->rc.bStatRead &&<br>+ if (m_lastNonB &&<br> ((m_param->bFrameAdaptive && m_param->bframes) ||<br> m_param->rc.cuTree || m_param->scenecutThreshold || m_param->bHistBasedSceneCut ||<br> (m_param->lookaheadDepth && m_param->rc.vbvBufferSize)))<br> {<br>- slicetypeAnalyse(frames, false);<br>+ if(!m_param->rc.bStatRead)<br>+ slicetypeAnalyse(frames, false);<br> bool bIsVbv = m_param->rc.vbvBufferSize > 0 && m_param->rc.vbvMaxBitrate > 0;<br>- if (m_param->analysisLoad && m_param->scaleFactor && bIsVbv)<br>+ if ((m_param->analysisLoad && m_param->scaleFactor && bIsVbv) || m_param->rc.bRealtimeVBV2pass)<br> {<br> int numFrames;<br> for (numFrames = 0; numFrames < maxSearch; numFrames++)<br>@@ -1749,7 +1750,7 @@ void Lookahead::slicetypeDecide()<br> }<br> }<br> <br>- bool isKeyFrameAnalyse = (m_param->rc.cuTree || (m_param->rc.vbvBufferSize && m_param->lookaheadDepth)) && !m_param->rc.bStatRead;<br>+ bool isKeyFrameAnalyse = (m_param->rc.cuTree || (m_param->rc.vbvBufferSize && m_param->lookaheadDepth));<br> if (isKeyFrameAnalyse && IS_X265_TYPE_I(m_lastNonB->sliceType))<br> {<br> m_inputLock.acquire();<br>@@ -1764,9 +1765,10 @@ void Lookahead::slicetypeDecide()<br> m_inputLock.release();<br> <br> frames[j + 1] = NULL;<br>- slicetypeAnalyse(frames, true);<br>+ if (!m_param->rc.bStatRead)<br>+ slicetypeAnalyse(frames, true);<br> bool bIsVbv = m_param->rc.vbvBufferSize > 0 && m_param->rc.vbvMaxBitrate > 0;<br>- if (m_param->analysisLoad && m_param->scaleFactor && bIsVbv)<br>+ if ((m_param->analysisLoad && m_param->scaleFactor && bIsVbv) || m_param->rc.bRealtimeVBV2pass)<br> {<br> int numFrames;<br> for (numFrames = 0; numFrames < maxSearch; numFrames++)<br>diff --git a/source/x265.h b/source/x265.h<br>index 0ffa600b0..bcd1d4e58 100644<br>--- a/source/x265.h<br>+++ b/source/x265.h<br>@@ -1486,6 +1486,10 @@ typedef struct x265_param<br> /* internally enable if tune grain is set */<br> int bEnableConstVbv;<br> <br>+ /*Enables Qp tuning with respect to real time VBV buffer fullness in rate<br>+ control 2 pass. Experimental.Default is disabled*/<br>+ int bRealtimeVBV2pass;<br>+<br></div></blockquote><div>[AM] Always add new param options to the end of the structure. Nested structures shall break backward compatibility.</div></div></div></blockquote><div>Ok.I will add the new param at the end of param struct. </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"> } rc;<br> <br> /*== Video Usability Information ==*/<br>diff --git a/source/x265cli.cpp b/source/x265cli.cpp<br>index 6e8e0e661..0b17a8d3a 100755<br>--- a/source/x265cli.cpp<br>+++ b/source/x265cli.cpp<br>@@ -221,6 +221,7 @@ namespace X265_NS {<br> " - 3 : Nth pass, overwrites stats file\n");<br> H0(" --[no-]multi-pass-opt-analysis Refine analysis in 2 pass based on analysis information from pass 1\n");<br> H0(" --[no-]multi-pass-opt-distortion Use distortion of CTU from pass 1 to refine qp in 2 pass\n");<br>+ H0(" --[no-]realtime-vbv-2pass Enable realtime VBV in rate control 2 pass.Default %s\n", OPT(param->bLossless));<br> H0(" --stats Filename for stats file in multipass pass rate control. Default x265_2pass.log\n");<br> H0(" --[no-]analyze-src-pics Motion estimation uses source frame planes. Default disable\n");<br> H0(" --[no-]slow-firstpass Enable a slow first pass in a multipass rate control mode. Default %s\n", OPT(param->rc.bEnableSlowFirstPass));<br>diff --git a/source/x265cli.h b/source/x265cli.h<br>index 311f06935..89840d9af 100644<br>--- a/source/x265cli.h<br>+++ b/source/x265cli.h<br>@@ -284,6 +284,8 @@ static const struct option long_options[] =<br> { "no-multi-pass-opt-analysis", no_argument, NULL, 0 },<br> { "multi-pass-opt-distortion", no_argument, NULL, 0 },<br> { "no-multi-pass-opt-distortion", no_argument, NULL, 0 },<br>+ { "realtime-vbv-2pass", no_argument, NULL, 0 },<br>+ { "no-realtime-vbv-2pass", no_argument, NULL, 0 },<br></div></blockquote><div>[AM] Please add an entry for the new option in x265_param2string(); This will keep the info SEI updated.</div></div></div></blockquote><div>Ok,will update </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"> { "slow-firstpass", no_argument, NULL, 0 },<br> { "no-slow-firstpass", no_argument, NULL, 0 },<br> { "multi-pass-opt-rps", no_argument, NULL, 0 },<br>-- <br>2.28.0.windows.1<br><br><div><div dir="ltr"><div dir="ltr"><i>Thanks,</i><div><i>Kirithika</i></div></div></div></div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><font face="georgia, serif">Regards,</font><div><b><font face="georgia, serif">Aruna Matheswaran,</font></b></div><div><font face="georgia, serif">Video Codec Engineer,</font></div><div><font face="georgia, serif">Media & AI analytics BU,</font></div><div><span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><span style="border:none;display:inline-block;overflow:hidden;width:153px;height:58px"><img src="https://lh5.googleusercontent.com/gjX5cPNIZgwUrhfqkTwQUZWztIKmmo0qs3kbwvkS5H-bDVE2ftte9pMTVnFLSjOcjYWLtfc6_OGpxW4vraLg2r5QAIf1Q3MpldFDgWtzK_gXi8ptw5B3joIbsGL6mxj-JRdjHzT5" width="96" height="36" style="margin-left: 0px; margin-top: 0px;"></span></span></span><font face="georgia, serif"><br></font></div><div><span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><span style="border:none;display:inline-block;overflow:hidden;width:153px;height:58px"><img src="https://lh5.googleusercontent.com/gjX5cPNIZgwUrhfqkTwQUZWztIKmmo0qs3kbwvkS5H-bDVE2ftte9pMTVnFLSjOcjYWLtfc6_OGpxW4vraLg2r5QAIf1Q3MpldFDgWtzK_gXi8ptw5B3joIbsGL6mxj-JRdjHzT5" style="margin-left: 0px; margin-top: 0px;"></span></span></span><font face="georgia, serif"><br></font></div><div><font face="georgia, serif"><br></font></div></div></div></div></div></div></div></div></div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><font face="georgia, serif">Regards,</font><div><b><font face="georgia, serif">Aruna Matheswaran,</font></b></div><div><font face="georgia, serif">Video Codec Engineer,</font></div><div><font face="georgia, serif">Media & AI analytics BU,</font></div><div><span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><span style="border:none;display:inline-block;overflow:hidden;width:153px;height:58px"><img src="https://lh5.googleusercontent.com/gjX5cPNIZgwUrhfqkTwQUZWztIKmmo0qs3kbwvkS5H-bDVE2ftte9pMTVnFLSjOcjYWLtfc6_OGpxW4vraLg2r5QAIf1Q3MpldFDgWtzK_gXi8ptw5B3joIbsGL6mxj-JRdjHzT5" width="96" height="36" style="margin-left: 0px; margin-top: 0px;"></span></span></span><font face="georgia, serif"><br></font></div><div><span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><span style="border:none;display:inline-block;overflow:hidden;width:153px;height:58px"><img src="https://lh5.googleusercontent.com/gjX5cPNIZgwUrhfqkTwQUZWztIKmmo0qs3kbwvkS5H-bDVE2ftte9pMTVnFLSjOcjYWLtfc6_OGpxW4vraLg2r5QAIf1Q3MpldFDgWtzK_gXi8ptw5B3joIbsGL6mxj-JRdjHzT5" style="margin-left: 0px; margin-top: 0px;"></span></span></span><font face="georgia, serif"><br></font></div><div><font face="georgia, serif"><br></font></div></div></div></div></div></div></div></div></div>