[x265] [PATCH x265] Add support for chunked encoding
aruna at multicorewareinc.com
aruna at multicorewareinc.com
Fri Jun 8 11:23:39 CEST 2018
# HG changeset patch
# User Aruna Matheswaran <aruna at multicorewareinc.com>
# Date 1521010828 -19800
# Wed Mar 14 12:30:28 2018 +0530
# Node ID 182914e1d201395d152e310db7f5cf29ab3c787e
# Parent 03dcb3457b7eafc6a13fd317286d70921a5b7dfe
Add support for chunked encoding
diff -r 03dcb3457b7e -r 182914e1d201 doc/reST/cli.rst
--- a/doc/reST/cli.rst Mon May 28 14:05:25 2018 +0530
+++ b/doc/reST/cli.rst Wed Mar 14 12:30:28 2018 +0530
@@ -535,6 +535,20 @@
**CLI ONLY**
+.. option:: --chunk-start <integer>
+
+ First frame of the chunk. Frames preceeding this in display order will
+ be encoded, however, they will be discarded in the bitstream. This
+ feature can be enabled only in closed GOP structures.
+ Default 0 (disabled).
+
+.. option:: --chunk-end <integer>
+
+ Last frame of the chunk. Frames following this in display order will be
+ used in taking lookahead decisions, but, they will not be encoded.
+ This feature can be enabled only in closed GOP structures.
+ Default 0 (disabled).
+
Profile, Level, Tier
====================
diff -r 03dcb3457b7e -r 182914e1d201 source/CMakeLists.txt
--- a/source/CMakeLists.txt Mon May 28 14:05:25 2018 +0530
+++ b/source/CMakeLists.txt Wed Mar 14 12:30:28 2018 +0530
@@ -29,7 +29,7 @@
option(STATIC_LINK_CRT "Statically link C runtime for release builds" OFF)
mark_as_advanced(FPROFILE_USE FPROFILE_GENERATE NATIVE_BUILD)
# X265_BUILD must be incremented each time the public API is changed
-set(X265_BUILD 160)
+set(X265_BUILD 161)
configure_file("${PROJECT_SOURCE_DIR}/x265.def.in"
"${PROJECT_BINARY_DIR}/x265.def")
configure_file("${PROJECT_SOURCE_DIR}/x265_config.h.in"
diff -r 03dcb3457b7e -r 182914e1d201 source/common/param.cpp
--- a/source/common/param.cpp Mon May 28 14:05:25 2018 +0530
+++ b/source/common/param.cpp Wed Mar 14 12:30:28 2018 +0530
@@ -156,6 +156,9 @@
param->lookaheadThreads = 0;
param->scenecutBias = 5.0;
param->radl = 0;
+ param->chunkStart = 0;
+ param->chunkEnd = 0;
+
/* Intra Coding Tools */
param->bEnableConstrainedIntra = 0;
param->bEnableStrongIntraSmoothing = 1;
@@ -1043,6 +1046,8 @@
OPT("single-sei") p->bSingleSeiNal = atobool(value);
OPT("atc-sei") p->preferredTransferCharacteristics = atoi(value);
OPT("pic-struct") p->pictureStructure = atoi(value);
+ OPT("chunk-start") p->chunkStart = atoi(value);
+ OPT("chunk-end") p->chunkEnd = atoi(value);
else
return X265_PARAM_BAD_NAME;
}
@@ -1603,6 +1608,10 @@
s += sprintf(s, " input-res=%dx%d", p->sourceWidth - padx, p->sourceHeight - pady);
s += sprintf(s, " interlace=%d", p->interlaceMode);
s += sprintf(s, " total-frames=%d", p->totalFrames);
+ if (p->chunkStart)
+ s += sprintf(s, " chunk-start=%d", p->chunkStart);
+ if (p->chunkEnd)
+ s += sprintf(s, " chunk-end=%d", p->chunkEnd);
s += sprintf(s, " level-idc=%d", p->levelIdc);
s += sprintf(s, " high-tier=%d", p->bHighTier);
s += sprintf(s, " uhd-bd=%d", p->uhdBluray);
diff -r 03dcb3457b7e -r 182914e1d201 source/encoder/api.cpp
--- a/source/encoder/api.cpp Mon May 28 14:05:25 2018 +0530
+++ b/source/encoder/api.cpp Wed Mar 14 12:30:28 2018 +0530
@@ -281,7 +281,7 @@
pic_in->analysis2Pass.analysisFramedata = NULL;
}
- if (pp_nal && numEncoded > 0)
+ if (pp_nal && numEncoded > 0 && encoder->m_outputCount >= encoder->m_latestParam->chunkStart)
{
*pp_nal = &encoder->m_nalList.m_nal[0];
if (pi_nal) *pi_nal = encoder->m_nalList.m_numNal;
@@ -289,7 +289,7 @@
else if (pi_nal)
*pi_nal = 0;
- if (numEncoded && encoder->m_param->csvLogLevel)
+ if (numEncoded && encoder->m_param->csvLogLevel && encoder->m_outputCount >= encoder->m_latestParam->chunkStart)
x265_csvlog_frame(encoder->m_param, pic_out);
if (numEncoded < 0)
diff -r 03dcb3457b7e -r 182914e1d201 source/encoder/encoder.cpp
--- a/source/encoder/encoder.cpp Mon May 28 14:05:25 2018 +0530
+++ b/source/encoder/encoder.cpp Wed Mar 14 12:30:28 2018 +0530
@@ -889,7 +889,7 @@
m_exportedPic = NULL;
m_dpb->recycleUnreferenced();
}
- if (pic_in)
+ if (pic_in && (!m_param->chunkEnd || (m_encodedFrameNum < m_param->chunkEnd)))
{
if (m_latestParam->forceFlush == 1)
{
@@ -1319,7 +1319,8 @@
if (m_aborted)
return -1;
- finishFrameStats(outFrame, curEncoder, frameData, m_pocLast);
+ if ((m_outputCount + 1) >= m_param->chunkStart)
+ finishFrameStats(outFrame, curEncoder, frameData, m_pocLast);
/* Write RateControl Frame level stats in multipass encodes */
if (m_param->rc.bStatWrite)
@@ -1354,8 +1355,12 @@
}
else
m_exportedPic = outFrame;
-
- m_numDelayedPic--;
+
+ m_outputCount++;
+ if (m_param->chunkEnd == m_outputCount)
+ m_numDelayedPic = 0;
+ else
+ m_numDelayedPic--;
ret = 1;
}
@@ -1364,7 +1369,7 @@
* curEncoder is guaranteed to be idle at this point */
if (!pass)
frameEnc = m_lookahead->getDecidedPicture();
- if (frameEnc && !pass)
+ if (frameEnc && !pass && (!m_param->chunkEnd || (m_encodedFrameNum < m_param->chunkEnd)))
{
if (m_param->analysisMultiPassRefine || m_param->analysisMultiPassDistortion)
{
@@ -1485,6 +1490,7 @@
frameEnc->m_encData->m_slice->m_iNumRPSInSPS = m_sps.spsrpsNum;
curEncoder->m_rce.encodeOrder = frameEnc->m_encodeOrder = m_encodedFrameNum++;
+
if (!m_param->analysisLoad || !m_param->bDisableLookahead)
{
if (m_bframeDelay)
@@ -2123,7 +2129,7 @@
{
const int picOrderCntLSB = slice->m_poc - slice->m_lastIDR;
- frameStats->encoderOrder = m_outputCount++;
+ frameStats->encoderOrder = m_outputCount;
frameStats->sliceType = c;
frameStats->poc = picOrderCntLSB;
frameStats->qp = curEncData.m_avgQpAq;
@@ -3124,6 +3130,19 @@
p->radl = 0;
x265_log(p, X265_LOG_WARNING, "Radl requires fixed gop-length (keyint == min-keyint). Disabling radl.\n");
}
+
+ if ((p->chunkStart || p->chunkEnd) && p->bOpenGOP)
+ {
+ p->chunkStart = p->chunkEnd = 0;
+ x265_log(p, X265_LOG_WARNING, "Chunking requires closed gop structure. Disabling chunking.\n");
+ }
+
+ if (p->chunkEnd < p->chunkStart)
+ {
+ p->chunkStart = p->chunkEnd = 0;
+ x265_log(p, X265_LOG_WARNING, "chunk-end cannot be less than chunk-start. Disabling chunking.\n");
+ }
+
}
void Encoder::allocAnalysis(x265_analysis_data* analysis)
diff -r 03dcb3457b7e -r 182914e1d201 source/encoder/slicetype.cpp
--- a/source/encoder/slicetype.cpp Mon May 28 14:05:25 2018 +0530
+++ b/source/encoder/slicetype.cpp Wed Mar 14 12:30:28 2018 +0530
@@ -1108,8 +1108,9 @@
x265_log(m_param, X265_LOG_WARNING, "B-ref at frame %d incompatible with B-pyramid and %d reference frames\n",
frm.sliceType, m_param->maxNumReferences);
}
- if ((!m_param->bIntraRefresh || frm.frameNum == 0) && frm.frameNum - m_lastKeyframe >= m_param->keyframeMax &&
- (!m_extendGopBoundary || frm.frameNum - m_lastKeyframe >= m_param->keyframeMax + m_param->gopLookahead))
+ if (((!m_param->bIntraRefresh || frm.frameNum == 0) && frm.frameNum - m_lastKeyframe >= m_param->keyframeMax &&
+ (!m_extendGopBoundary || frm.frameNum - m_lastKeyframe >= m_param->keyframeMax + m_param->gopLookahead)) ||
+ (frm.frameNum == (m_param->chunkStart - 1)) || (frm.frameNum == m_param->chunkEnd))
{
if (frm.sliceType == X265_TYPE_AUTO || frm.sliceType == X265_TYPE_I)
frm.sliceType = m_param->bOpenGOP && m_lastKeyframe >= 0 ? X265_TYPE_I : X265_TYPE_IDR;
@@ -1123,7 +1124,7 @@
frm.sliceType = m_param->bOpenGOP && m_lastKeyframe >= 0 ? X265_TYPE_I : X265_TYPE_IDR;
}
}
- if (frm.sliceType == X265_TYPE_I && frm.frameNum - m_lastKeyframe >= m_param->keyframeMin)
+ if ((frm.sliceType == X265_TYPE_I && frm.frameNum - m_lastKeyframe >= m_param->keyframeMin) || (frm.frameNum == (m_param->chunkStart - 1)) || (frm.frameNum == m_param->chunkEnd))
{
if (m_param->bOpenGOP)
{
@@ -1416,7 +1417,19 @@
return;
}
frames[framecnt + 1] = NULL;
- int keyFrameLimit = m_param->keyframeMax + m_lastKeyframe - frames[0]->frameNum - 1;
+
+ int keylimit = m_param->keyframeMax;
+ if (frames[0]->frameNum < m_param->chunkEnd)
+ {
+ int chunkStart = (m_param->chunkStart - m_lastKeyframe - 1);
+ int chunkEnd = (m_param->chunkEnd - m_lastKeyframe);
+ if ((chunkStart > 0) && (chunkStart < m_param->keyframeMax))
+ keylimit = chunkStart;
+ else if ((chunkEnd > 0) && (chunkEnd < m_param->keyframeMax))
+ keylimit = chunkEnd;
+ }
+
+ int keyFrameLimit = keylimit + m_lastKeyframe - frames[0]->frameNum - 1;
if (m_param->gopLookahead && keyFrameLimit <= m_param->bframes + 1)
keyintLimit = keyFrameLimit + m_param->gopLookahead;
else
diff -r 03dcb3457b7e -r 182914e1d201 source/test/regression-tests.txt
--- a/source/test/regression-tests.txt Mon May 28 14:05:25 2018 +0530
+++ b/source/test/regression-tests.txt Wed Mar 14 12:30:28 2018 +0530
@@ -173,4 +173,7 @@
RaceHorses_416x240_30.y4m,--preset slow --no-cutree --ctu 16 --analysis-save x265_analysis.dat --analysis-reuse-level 10 --scale-factor 2 --crf 22 --vbv-maxrate 1000 --vbv-bufsize 1000::RaceHorses_832x480_30.y4m, --preset slow --no-cutree --ctu 32 --analysis-load x265_analysis.dat --analysis-save x265_analysis_2.dat --analysis-reuse-level 10 --scale-factor 2 --crf 16 --vbv-maxrate 4000 --vbv-bufsize 4000 --refine-intra 0 --refine-inter 1::RaceHorses_1664x960_30.y4m,--preset slow --no-cutree --ctu 64 --analysis-load x265_analysis_2.dat --analysis-reuse-level 10 --scale-factor 2 --crf 12 --vbv-maxrate 7000 --vbv-bufsize 7000 --refine-intra 2 --refine-inter 2
ElFunete_960x540_60.yuv,--colorprim bt709 --transfer bt709 --chromaloc 2 --aud --repeat-headers --no-opt-qp-pps --no-opt-ref-list-length-pps --wpp --no-interlace --sar 1:1 --min-keyint 60 --no-open-gop --rc-lookahead 180 --bframes 5 --b-intra --ref 4 --cbqpoffs -2 --crqpoffs -2 --lookahead-threads 0 --weightb --qg-size 8 --me star --preset veryslow --frame-threads 1 --b-adapt 2 --aq-mode 3 --rd 6 --pools 15 --colormatrix bt709 --keyint 120 --high-tier --ctu 64 --tune psnr --bitrate 10000 --vbv-bufsize 30000 --vbv-maxrate 17500 --analysis-reuse-level 10 --analysis-save elfuente_960x540.dat --scale-factor 2::ElFunete_1920x1080_60.yuv,--colorprim bt709 --transfer bt709 --chromaloc 2 --aud --repeat-headers --no-opt-qp-pps --no-opt-ref-list-length-pps --wpp --no-interlace --sar 1:1 --min-keyint 60 --no-open-gop --rc-lookahead 180 --bframes 5 --b-intra --ref 4 --cbqpoffs -2 --crqpoffs -2 --lookahead-threads 0 --weightb --qg-size 8 --me star --preset veryslow --frame-threads 1 --b-adapt 2 --aq-mode 3 --rd 6 --pools 15 --colormatrix bt709 --keyint 120 --high-tier --ctu 64 --tune psnr --bitrate 10000 --vbv-bufsize 30000 --vbv-maxrate 17500 --analysis-reuse-level 10 --analysis-save elfuente_1920x1080.dat --limit-tu 0 --scale-factor 2 --analysis-load elfuente_960x540.dat --refine-intra 4 --refine-inter 2::ElFuente_3840x2160_60.yuv,--colorprim bt709 --transfer bt709 --chromaloc 2 --aud --repeat-headers --no-opt-qp-pps --no-opt-ref-list-length-pps --wpp --no-interlace --sar 1:1 --min-keyint 60 --no-open-gop --rc-lookahead 180 --bframes 5 --b-intra --ref 4 --cbqpoffs -2 --crqpoffs -2 --lookahead-threads 0 --weightb --qg-size 8 --me star --preset veryslow --frame-threads 1 --b-adapt 2 --aq-mode 3 --rd 6 --pools 15 --colormatrix bt709 --keyint 120 --high-tier --ctu 64 --tune=psnr --bitrate 24000 --vbv-bufsize 84000 --vbv-maxrate 49000 --analysis-reuse-level 10 --limit-tu 0 --scale-factor 2 --analysis-load elfuente_1920x1080.dat --refine-intra 4 --refine-inter 2
+#segment encoding
+BasketballDrive_1920x1080_50.y4m, --preset ultrafast --no-open-gop --chunk-start 100 --chunk-end 200
+
# vim: tw=200
diff -r 03dcb3457b7e -r 182914e1d201 source/x265.cpp
--- a/source/x265.cpp Mon May 28 14:05:25 2018 +0530
+++ b/source/x265.cpp Wed Mar 14 12:30:28 2018 +0530
@@ -144,7 +144,7 @@
{
int eta = (int)(elapsed * (framesToBeEncoded - frameNum) / ((int64_t)frameNum * 1000000));
sprintf(buf, "x265 [%.1f%%] %d/%d frames, %.2f fps, %.2f kb/s, eta %d:%02d:%02d",
- 100. * frameNum / framesToBeEncoded, frameNum, framesToBeEncoded, fps, bitrate,
+ 100. * frameNum / (param->chunkEnd ? param->chunkEnd : param->totalFrames), frameNum, (param->chunkEnd ? param->chunkEnd : param->totalFrames), fps, bitrate,
eta / 3600, (eta / 60) % 60, eta % 60);
}
else
@@ -403,7 +403,7 @@
if (this->framesToBeEncoded == 0 && info.frameCount > (int)seek)
this->framesToBeEncoded = info.frameCount - seek;
param->totalFrames = this->framesToBeEncoded;
-
+
/* Force CFR until we have support for VFR */
info.timebaseNum = param->fpsDenom;
info.timebaseDenom = param->fpsNum;
diff -r 03dcb3457b7e -r 182914e1d201 source/x265.h
--- a/source/x265.h Mon May 28 14:05:25 2018 +0530
+++ b/source/x265.h Wed Mar 14 12:30:28 2018 +0530
@@ -1638,6 +1638,18 @@
/* Enable writing all SEI messgaes in one single NAL instead of mul*/
int bSingleSeiNal;
+
+
+ /* First frame of the chunk. Frames preceeding this in display order will
+ * be encoded, however, they will be discarded in the bitstream.
+ * Default 0 (disabled). */
+ int chunkStart;
+
+ /* Last frame of the chunk. Frames following this in display order will be
+ * used in taking lookahead decisions, but, they will not be encoded.
+ * Default 0 (disabled). */
+ int chunkEnd;
+
} x265_param;
/* x265_param_alloc:
diff -r 03dcb3457b7e -r 182914e1d201 source/x265cli.h
--- a/source/x265cli.h Mon May 28 14:05:25 2018 +0530
+++ b/source/x265cli.h Wed Mar 14 12:30:28 2018 +0530
@@ -152,6 +152,8 @@
{ "vbv-init", required_argument, NULL, 0 },
{ "vbv-end", required_argument, NULL, 0 },
{ "vbv-end-fr-adj", required_argument, NULL, 0 },
+ { "chunk-start", required_argument, NULL, 0 },
+ { "chunk-end", required_argument, NULL, 0 },
{ "bitrate", required_argument, NULL, 0 },
{ "qp", required_argument, NULL, 'q' },
{ "aq-mode", required_argument, NULL, 0 },
@@ -468,6 +470,8 @@
H0(" --vbv-init <float> Initial VBV buffer occupancy (fraction of bufsize or in kbits). Default %.2f\n", param->rc.vbvBufferInit);
H0(" --vbv-end <float> Final VBV buffer emptiness (fraction of bufsize or in kbits). Default 0 (disabled)\n");
H0(" --vbv-end-fr-adj <float> Frame from which qp has to be adjusted to achieve final decode buffer emptiness. Default 0\n");
+ H0(" --chunk-start <integer> First frame of the chunk. Default 0 (disabled)\n");
+ H0(" --chunk-end <integer> Last frame of the chunk. Default 0 (disabled)\n");
H0(" --pass Multi pass rate control.\n"
" - 1 : First pass, creates stats file\n"
" - 2 : Last pass, does not overwrite stats file\n"
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