[x265] [x265 patch] Adaptive Frame Duplication

Akil akil at multicorewareinc.com
Fri Oct 4 12:29:06 CEST 2019


Thanks for the comments. Fixed accordingly.

Thanks & Regards
*Akil R*
Video Codec Engineer
Media & AI Analytics
<https://multicorewareinc.com/>


On Fri, Oct 4, 2019 at 3:19 PM Pradeep Ramachandran <
pradeep at multicorewareinc.com> wrote:

>
> On Thu, Oct 3, 2019 at 12:35 PM Akil <akil at multicorewareinc.com> wrote:
>
>> # HG changeset patch
>> # User Akil Ayyappan<akil at multicorewareinc.com>
>> # Date 1568370446 -19800
>> #      Fri Sep 13 15:57:26 2019 +0530
>> # Node ID fa0d04affb8a4405ac548841ad12cfa2dab87ef2
>> # Parent  c4b098f973e6b0ee4aee3bf0d7b54da4e2734d42
>> Adaptive Frame duplication
>>
>> This patch does the following.
>> 1. Replaces 2-3 near-identical frames with one frame and sets pic_struct
>> based on frame doubling / tripling.
>> 2. Add option "--frame-dup" and "--dup-threshold' to enable frame
>> duplication and to set threshold for frame similarity (optional).
>>
>> diff -r c4b098f973e6 -r fa0d04affb8a doc/reST/cli.rst
>> --- a/doc/reST/cli.rst Tue Aug 13 10:51:21 2019 +0530
>> +++ b/doc/reST/cli.rst Fri Sep 13 15:57:26 2019 +0530
>> @@ -501,6 +501,17 @@
>>   second. The decoder must re-combine the fields in their correct
>>   orientation for display.
>>
>> +.. option:: --frame-dup, --no-frame-dup
>> +
>> + Enable Adaptive Frame duplication. Replaces 2-3 near-identical frames
>> with one
>> + frame and sets pic_struct based on frame doubling / tripling.
>> + Default disabled.
>> +
>> +.. option:: --dup-threshold <integer>
>> +
>> + Frame similarity threshold can vary between 1 and 99. This requires
>> Adaptive
>> + Frame Duplication to be enabled. Default 70.
>> +
>>  .. option:: --seek <integer>
>>
>>   Number of frames to skip at start of input file. Default 0
>> diff -r c4b098f973e6 -r fa0d04affb8a source/CMakeLists.txt
>> --- a/source/CMakeLists.txt Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/CMakeLists.txt Fri Sep 13 15:57:26 2019 +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 179)
>> +set(X265_BUILD 180)
>>  configure_file("${PROJECT_SOURCE_DIR}/x265.def.in"
>>                 "${PROJECT_BINARY_DIR}/x265.def")
>>  configure_file("${PROJECT_SOURCE_DIR}/x265_config.h.in"
>> diff -r c4b098f973e6 -r fa0d04affb8a source/common/frame.cpp
>> --- a/source/common/frame.cpp Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/common/frame.cpp Fri Sep 13 15:57:26 2019 +0530
>> @@ -57,6 +57,7 @@
>>      m_addOnPrevChange = NULL;
>>      m_classifyFrame = false;
>>      m_fieldNum = 0;
>> +    m_picStruct = 0;
>>  }
>>
>>  bool Frame::create(x265_param *param, float* quantOffsets)
>> diff -r c4b098f973e6 -r fa0d04affb8a source/common/frame.h
>> --- a/source/common/frame.h Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/common/frame.h Fri Sep 13 15:57:26 2019 +0530
>> @@ -98,6 +98,7 @@
>>
>>      float*                 m_quantOffsets;       // points to
>> quantOffsets in x265_picture
>>      x265_sei               m_userSEI;
>> +    uint32_t               m_picStruct;          // picture structure
>> SEI message
>>      x265_dolby_vision_rpu            m_rpu;
>>
>>      /* Frame Parallelism - notification between FrameEncoders of
>> available motion reference rows */
>> diff -r c4b098f973e6 -r fa0d04affb8a source/common/param.cpp
>> --- a/source/common/param.cpp Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/common/param.cpp Fri Sep 13 15:57:26 2019 +0530
>> @@ -135,6 +135,7 @@
>>
>>      /* Source specifications */
>>      param->internalBitDepth = X265_DEPTH;
>> +    param->sourceBitDepth = 8;
>>      param->internalCsp = X265_CSP_I420;
>>      param->levelIdc = 0; //Auto-detect level
>>      param->uhdBluray = 0;
>> @@ -338,6 +339,9 @@
>>      param->pictureStructure = -1;
>>      param->bEmitCLL = 1;
>>
>> +    param->bEnableFrameDuplication = 0;
>> +    param->dupThreshold = 70;
>> +
>>      /* SVT Hevc Encoder specific params */
>>      param->bEnableSvtHevc = 0;
>>      param->svtHevcParam = NULL;
>> @@ -1294,6 +1298,8 @@
>>          OPT("fades") p->bEnableFades = atobool(value);
>>          OPT("field") p->bField = atobool( value );
>>          OPT("cll") p->bEmitCLL = atobool(value);
>> +        OPT("frame-dup") p->bEnableFrameDuplication = atobool(value);
>> +        OPT("dup-threshold") p->dupThreshold = atoi(value);
>>          OPT("hme") p->bEnableHME = atobool(value);
>>          OPT("hme-search")
>>          {
>> @@ -1680,6 +1686,8 @@
>>          "Supported factor for controlling max AU size is from 0.5 to 1");
>>      CHECK((param->dolbyProfile != 0) && (param->dolbyProfile != 50) &&
>> (param->dolbyProfile != 81) && (param->dolbyProfile != 82),
>>          "Unsupported Dolby Vision profile, only profile 5, profile 8.1
>> and profile 8.2 enabled");
>> +    CHECK(param->dupThreshold < 1 || 99 < param->dupThreshold,
>> +        "Invalid frame-duplication threshold. Value must be between 1
>> and 99.");
>>      if (param->dolbyProfile)
>>      {
>>          CHECK((param->rc.vbvMaxBitrate <= 0 || param->rc.vbvBufferSize
>> <= 0), "Dolby Vision requires VBV settings to enable HRD.\n");
>> @@ -1972,6 +1980,9 @@
>>      s += sprintf(s, " subme=%d", p->subpelRefine);
>>      s += sprintf(s, " merange=%d", p->searchRange);
>>      BOOL(p->bEnableTemporalMvp, "temporal-mvp");
>> +    BOOL(p->bEnableFrameDuplication, "frame-dup");
>> +    if(p->bEnableFrameDuplication)
>> +        s += sprintf(s, " dup-threshold=%d", p->dupThreshold);
>>      BOOL(p->bEnableHME, "hme");
>>      if (p->bEnableHME)
>>          s += sprintf(s, " Level 0,1,2=%d,%d,%d", p->hmeSearchMethod[0],
>> p->hmeSearchMethod[1], p->hmeSearchMethod[2]);
>> @@ -2209,6 +2220,7 @@
>>      if (src->csvfn) dst->csvfn = strdup(src->csvfn);
>>      else dst->csvfn = NULL;
>>      dst->internalBitDepth = src->internalBitDepth;
>> +    dst->sourceBitDepth = src->sourceBitDepth;
>>      dst->internalCsp = src->internalCsp;
>>      dst->fpsNum = src->fpsNum;
>>      dst->fpsDenom = src->fpsDenom;
>> @@ -2263,6 +2275,8 @@
>>      dst->subpelRefine = src->subpelRefine;
>>      dst->searchRange = src->searchRange;
>>      dst->bEnableTemporalMvp = src->bEnableTemporalMvp;
>> +    dst->bEnableFrameDuplication = src->bEnableFrameDuplication;
>> +    dst->dupThreshold = src->dupThreshold;
>>      dst->bEnableHME = src->bEnableHME;
>>      if (src->bEnableHME)
>>      {
>> diff -r c4b098f973e6 -r fa0d04affb8a source/encoder/api.cpp
>> --- a/source/encoder/api.cpp Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/encoder/api.cpp Fri Sep 13 15:57:26 2019 +0530
>> @@ -923,6 +923,7 @@
>>      pic->userSEI.numPayloads = 0;
>>      pic->rpu.payloadSize = 0;
>>      pic->rpu.payload = NULL;
>> +    pic->picStruct = 0;
>>
>>      if ((param->analysisSave || param->analysisLoad) ||
>> (param->bAnalysisType == AVC_INFO))
>>      {
>> diff -r c4b098f973e6 -r fa0d04affb8a source/encoder/encoder.cpp
>> --- a/source/encoder/encoder.cpp Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/encoder/encoder.cpp Fri Sep 13 15:57:26 2019 +0530
>> @@ -117,6 +117,8 @@
>>      m_cR = 1.0;
>>      for (int i = 0; i < X265_MAX_FRAME_THREADS; i++)
>>          m_frameEncoder[i] = NULL;
>> +    for (uint32_t i = 0; i < DUP_BUFFER; i++)
>> +        m_dupBuffer[i] = NULL;
>>      MotionEstimate::initScales();
>>
>>  #if ENABLE_HDR10_PLUS
>> @@ -160,6 +162,53 @@
>>      int rows = (p->sourceHeight + p->maxCUSize - 1) >>
>> g_log2Size[p->maxCUSize];
>>      int cols = (p->sourceWidth  + p->maxCUSize - 1) >>
>> g_log2Size[p->maxCUSize];
>>
>> +    if (m_param->bEnableFrameDuplication)
>> +    {
>> +        size_t framesize = 0;
>> +        int pixelbytes = p->sourceBitDepth > 8 ? 2 : 1;
>> +        for (int i = 0; i < x265_cli_csps[p->internalCsp].planes; i++)
>> +        {
>> +            int stride = (p->sourceWidth >>
>> x265_cli_csps[p->internalCsp].width[i]) * pixelbytes;
>> +            framesize += (stride * (p->sourceHeight >>
>> x265_cli_csps[p->internalCsp].height[i]));
>> +        }
>> +
>> +        //Sets the picture structure and emits it in the picture timing
>> SEI message
>> +        m_param->pictureStructure = 0;
>> +
>> +        for (uint32_t i = 0; i < DUP_BUFFER; i++)
>> +        {
>> +            m_dupBuffer[i] =
>> (AdaptiveFrameDuplication*)x265_malloc(sizeof(AdaptiveFrameDuplication));
>> +            m_dupBuffer[i]->dupPic = NULL;
>> +            m_dupBuffer[i]->dupPic = x265_picture_alloc();
>> +            x265_picture_init(p, m_dupBuffer[i]->dupPic);
>> +            m_dupBuffer[i]->dupPlane = NULL;
>> +            m_dupBuffer[i]->dupPlane = X265_MALLOC(char, framesize);
>> +            m_dupBuffer[i]->dupPic->planes[0] = m_dupBuffer[i]->dupPlane;
>> +            m_dupBuffer[i]->bOccupied = false;
>> +            m_dupBuffer[i]->bDup = false;
>> +        }
>> +
>> +        if (!(p->sourceBitDepth == 8 && p->internalBitDepth == 8))
>> +        {
>> +            int size = p->sourceWidth * p->sourceHeight;
>> +            int hshift = CHROMA_H_SHIFT(p->internalCsp);
>> +            int vshift = CHROMA_V_SHIFT(p->internalCsp);
>> +            int widthC = p->sourceWidth >> hshift;
>> +            int heightC = p->sourceHeight >> vshift;
>> +
>> +            m_dupPicOne[0] = X265_MALLOC(pixel, size);
>> +            m_dupPicTwo[0] = X265_MALLOC(pixel, size);
>> +            if (p->internalCsp != X265_CSP_I400)
>> +            {
>> +                for (int k = 1; k < 3; k++)
>> +                {
>> +                    m_dupPicOne[k] = X265_MALLOC(pixel, widthC *
>> heightC);
>> +                    m_dupPicTwo[k] = X265_MALLOC(pixel, widthC *
>> heightC);
>> +                }
>> +            }
>> +        }
>> +    }
>> +
>>      // Do not allow WPP if only one row or fewer than 3 columns, it is
>> pointless and unstable
>>      if (rows == 1 || cols < 3)
>>      {
>> @@ -771,6 +820,33 @@
>>          m_exportedPic = NULL;
>>      }
>>
>> +    if (m_param->bEnableFrameDuplication)
>> +    {
>> +        for (uint32_t i = 0; i < DUP_BUFFER; i++)
>> +        {
>> +            X265_FREE(m_dupBuffer[i]->dupPlane);
>> +            x265_picture_free(m_dupBuffer[i]->dupPic);
>> +            X265_FREE(m_dupBuffer[i]);
>> +        }
>> +
>> +        if (!(m_param->sourceBitDepth == 8 && m_param->internalBitDepth
>> == 8))
>> +        {
>> +            for (int k = 0; k < 3; k++)
>> +            {
>> +                if (k == 0)
>> +                {
>> +                    X265_FREE(m_dupPicOne[k]);
>> +                    X265_FREE(m_dupPicTwo[k]);
>> +                }
>> +                else if(k >= 1 && m_param->internalCsp != X265_CSP_I400)
>> +                {
>> +                    X265_FREE(m_dupPicOne[k]);
>> +                    X265_FREE(m_dupPicTwo[k]);
>> +                }
>> +            }
>> +        }
>> +    }
>> +
>>      for (int i = 0; i < m_param->frameNumThreads; i++)
>>      {
>>          if (m_frameEncoder[i])
>> @@ -981,6 +1057,250 @@
>>      }
>>  }
>>
>> +//Find Sum of Squared Difference (SSD) between two pictures
>> +uint64_t Encoder::computeSSD(pixel *fenc, pixel *rec, intptr_t stride,
>> uint32_t width, uint32_t height, x265_param *param)
>> +{
>> +    uint64_t ssd = 0;
>> +
>> +    if (!param->bEnableFrameDuplication || (width & 3))
>> +    {
>> +        if ((width | height) & 3)
>> +        {
>> +            /* Slow Path */
>> +            for (uint32_t y = 0; y < height; y++)
>> +            {
>> +                for (uint32_t x = 0; x < width; x++)
>> +                {
>> +                    int diff = (int)(fenc[x] - rec[x]);
>> +                    ssd += diff * diff;
>> +                }
>> +
>> +                fenc += stride;
>> +                rec += stride;
>> +            }
>> +
>> +            return ssd;
>> +        }
>> +    }
>> +
>> +    uint32_t y = 0;
>> +
>> +    /* Consume rows in ever narrower chunks of height */
>> +    for (int size = BLOCK_64x64; size >= BLOCK_4x4 && y < height; size--)
>> +    {
>> +        uint32_t rowHeight = 1 << (size + 2);
>> +
>> +        for (; y + rowHeight <= height; y += rowHeight)
>> +        {
>> +            uint32_t y1, x = 0;
>> +
>> +            /* Consume each row using the largest square blocks possible
>> */
>> +            if (size == BLOCK_64x64 && !(stride & 31))
>> +                for (; x + 64 <= width; x += 64)
>> +                    ssd += primitives.cu[BLOCK_64x64].sse_pp(fenc + x,
>> stride, rec + x, stride);
>> +
>> +            if (size >= BLOCK_32x32 && !(stride & 15))
>> +                for (; x + 32 <= width; x += 32)
>> +                    for (y1 = 0; y1 + 32 <= rowHeight; y1 += 32)
>> +                        ssd += primitives.cu[BLOCK_32x32].sse_pp(fenc +
>> y1 * stride + x, stride, rec + y1 * stride + x, stride);
>> +
>> +            if (size >= BLOCK_16x16)
>> +                for (; x + 16 <= width; x += 16)
>> +                    for (y1 = 0; y1 + 16 <= rowHeight; y1 += 16)
>> +                        ssd += primitives.cu[BLOCK_16x16].sse_pp(fenc +
>> y1 * stride + x, stride, rec + y1 * stride + x, stride);
>> +
>> +            if (size >= BLOCK_8x8)
>> +                for (; x + 8 <= width; x += 8)
>> +                    for (y1 = 0; y1 + 8 <= rowHeight; y1 += 8)
>> +                        ssd += primitives.cu[BLOCK_8x8].sse_pp(fenc +
>> y1 * stride + x, stride, rec + y1 * stride + x, stride);
>> +
>> +            for (; x + 4 <= width; x += 4)
>> +                for (y1 = 0; y1 + 4 <= rowHeight; y1 += 4)
>> +                    ssd += primitives.cu[BLOCK_4x4].sse_pp(fenc + y1 *
>> stride + x, stride, rec + y1 * stride + x, stride);
>> +
>> +            fenc += stride * rowHeight;
>> +            rec += stride * rowHeight;
>> +        }
>> +    }
>> +
>> +    /* Handle last few rows of frames for videos
>> +    with height not divisble by 4 */
>> +    uint32_t h = height % y;
>> +    if (param->bEnableFrameDuplication && h)
>> +    {
>> +        for (uint32_t i = 0; i < h; i++)
>> +        {
>> +            for (uint32_t j = 0; j < width; j++)
>> +            {
>> +                int diff = (int)(fenc[j] - rec[j]);
>> +                ssd += diff * diff;
>> +            }
>> +
>> +            fenc += stride;
>> +            rec += stride;
>> +        }
>> +    }
>> +
>> +    return ssd;
>> +}
>> +
>> +//Compute the PSNR weightage between two pictures
>> +double Encoder::ComputePSNR(x265_picture *firstPic, x265_picture
>> *secPic, x265_param *param)
>> +{
>> +    uint64_t ssdY = 0, ssdU = 0, ssdV = 0;
>> +    intptr_t strideL, strideC;
>> +    uint32_t widthL, heightL, widthC, heightC;
>> +    double psnrY = 0, psnrU = 0, psnrV = 0, psnrWeight = 0;
>> +    int width = firstPic->width;
>> +    int height = firstPic->height;
>> +    int hshift = CHROMA_H_SHIFT(firstPic->colorSpace);
>> +    int vshift = CHROMA_V_SHIFT(firstPic->colorSpace);
>> +    pixel *yFirstPic = NULL, *ySecPic = NULL;
>> +    pixel *uFirstPic = NULL, *uSecPic = NULL;
>> +    pixel *vFirstPic = NULL, *vSecPic = NULL;
>> +
>> +    strideL = widthL = width;
>> +    heightL = height;
>> +
>> +    strideC = widthC = widthL >> hshift;
>> +    heightC = heightL >> vshift;
>> +
>> +    int size = width * height;
>> +    int maxvalY = 255 << (X265_DEPTH - 8);
>> +    int maxvalC = 255 << (X265_DEPTH - 8);
>> +    double refValueY = (double)maxvalY * maxvalY * size;
>> +    double refValueC = (double)maxvalC * maxvalC * size / 4.0;
>> +
>> +    if (firstPic->bitDepth == 8 && X265_DEPTH == 8)
>> +    {
>> +        yFirstPic = (pixel*)firstPic->planes[0];
>> +        ySecPic = (pixel*)secPic->planes[0];
>> +        if (param->internalCsp != X265_CSP_I400)
>> +        {
>> +            uFirstPic = (pixel*)firstPic->planes[1];
>> +            uSecPic = (pixel*)secPic->planes[1];
>> +            vFirstPic = (pixel*)firstPic->planes[2];
>> +            vSecPic = (pixel*)secPic->planes[2];
>> +        }
>> +    }
>> +    else if (firstPic->bitDepth == 8 && X265_DEPTH > 8)
>> +    {
>> +        int shift = (X265_DEPTH - 8);
>> +        uint8_t *yChar1, *yChar2, *uChar1, *uChar2, *vChar1, *vChar2;
>> +
>> +        yChar1 = (uint8_t*)firstPic->planes[0];
>> +        yChar2 = (uint8_t*)secPic->planes[0];
>> +
>> +        primitives.planecopy_cp(yChar1, firstPic->stride[0] /
>> sizeof(*yChar1), m_dupPicOne[0], firstPic->stride[0] / sizeof(*yChar1),
>> width, height, shift);
>> +        primitives.planecopy_cp(yChar2, secPic->stride[0] /
>> sizeof(*yChar2), m_dupPicTwo[0], secPic->stride[0] / sizeof(*yChar2),
>> width, height, shift);
>> +
>> +        if (param->internalCsp != X265_CSP_I400)
>> +        {
>> +            uChar1 = (uint8_t*)firstPic->planes[1];
>> +            uChar2 = (uint8_t*)secPic->planes[1];
>> +            vChar1 = (uint8_t*)firstPic->planes[2];
>> +            vChar2 = (uint8_t*)secPic->planes[2];
>> +
>> +            primitives.planecopy_cp(uChar1, firstPic->stride[1] /
>> sizeof(*uChar1), m_dupPicOne[1], firstPic->stride[1] / sizeof(*uChar1),
>> widthC, heightC, shift);
>> +            primitives.planecopy_cp(uChar2, secPic->stride[1] /
>> sizeof(*uChar2), m_dupPicTwo[1], secPic->stride[1] / sizeof(*uChar2),
>> widthC, heightC, shift);
>> +
>> +            primitives.planecopy_cp(vChar1, firstPic->stride[2] /
>> sizeof(*vChar1), m_dupPicOne[2], firstPic->stride[2] / sizeof(*vChar1),
>> widthC, heightC, shift);
>> +            primitives.planecopy_cp(vChar2, secPic->stride[2] /
>> sizeof(*vChar2), m_dupPicTwo[2], secPic->stride[2] / sizeof(*vChar2),
>> widthC, heightC, shift);
>> +        }
>> +    }
>> +    else
>> +    {
>> +        uint16_t *yShort1, *yShort2, *uShort1, *uShort2, *vShort1,
>> *vShort2;
>> +        /* defensive programming, mask off bits that are supposed to be
>> zero */
>> +        uint16_t mask = (1 << X265_DEPTH) - 1;
>> +        int shift = abs(firstPic->bitDepth - X265_DEPTH);
>> +
>> +        yShort1 = (uint16_t*)firstPic->planes[0];
>> +        yShort2 = (uint16_t*)secPic->planes[0];
>> +
>> +        if (firstPic->bitDepth > X265_DEPTH)
>> +        {
>> +            /* shift right and mask pixels to final size */
>> +            primitives.planecopy_sp(yShort1, firstPic->stride[0] /
>> sizeof(*yShort1), m_dupPicOne[0], firstPic->stride[0] / sizeof(*yShort1),
>> width, height, shift, mask);
>> +            primitives.planecopy_sp(yShort2, secPic->stride[0] /
>> sizeof(*yShort2), m_dupPicTwo[0], secPic->stride[0] / sizeof(*yShort2),
>> width, height, shift, mask);
>> +        }
>> +        else /* Case for (pic.bitDepth <= X265_DEPTH) */
>> +        {
>> +            /* shift left and mask pixels to final size */
>> +            primitives.planecopy_sp_shl(yShort1, firstPic->stride[0] /
>> sizeof(*yShort1), m_dupPicOne[0], firstPic->stride[0] / sizeof(*yShort1),
>> width, height, shift, mask);
>> +            primitives.planecopy_sp_shl(yShort2, secPic->stride[0] /
>> sizeof(*yShort2), m_dupPicTwo[0], secPic->stride[0] / sizeof(*yShort2),
>> width, height, shift, mask);
>> +        }
>> +
>> +        if (param->internalCsp != X265_CSP_I400)
>> +        {
>> +            uShort1 = (uint16_t*)firstPic->planes[1];
>> +            uShort2 = (uint16_t*)secPic->planes[1];
>> +            vShort1 = (uint16_t*)firstPic->planes[2];
>> +            vShort2 = (uint16_t*)secPic->planes[2];
>> +
>> +            if (firstPic->bitDepth > X265_DEPTH)
>> +            {
>> +                primitives.planecopy_sp(uShort1, firstPic->stride[1] /
>> sizeof(*uShort1), m_dupPicOne[1], firstPic->stride[1] / sizeof(*uShort1),
>> widthC, heightC, shift, mask);
>> +                primitives.planecopy_sp(uShort2, secPic->stride[1] /
>> sizeof(*uShort2), m_dupPicTwo[1], secPic->stride[1] / sizeof(*uShort2),
>> widthC, heightC, shift, mask);
>> +
>> +                primitives.planecopy_sp(vShort1, firstPic->stride[2] /
>> sizeof(*vShort1), m_dupPicOne[2], firstPic->stride[2] / sizeof(*vShort1),
>> widthC, heightC, shift, mask);
>> +                primitives.planecopy_sp(vShort2, secPic->stride[2] /
>> sizeof(*vShort2), m_dupPicTwo[2], secPic->stride[2] / sizeof(*vShort2),
>> widthC, heightC, shift, mask);
>> +            }
>> +            else /* Case for (pic.bitDepth <= X265_DEPTH) */
>> +            {
>> +                primitives.planecopy_sp_shl(uShort1, firstPic->stride[1]
>> / sizeof(*uShort1), m_dupPicOne[1], firstPic->stride[1] / sizeof(*uShort1),
>> widthC, heightC, shift, mask);
>> +                primitives.planecopy_sp_shl(uShort2, secPic->stride[1] /
>> sizeof(*uShort2), m_dupPicTwo[1], secPic->stride[1] / sizeof(*uShort2),
>> widthC, heightC, shift, mask);
>> +
>> +                primitives.planecopy_sp_shl(vShort1, firstPic->stride[2]
>> / sizeof(*vShort1), m_dupPicOne[2], firstPic->stride[2] / sizeof(*vShort1),
>> widthC, heightC, shift, mask);
>> +                primitives.planecopy_sp_shl(vShort2, secPic->stride[2] /
>> sizeof(*vShort2), m_dupPicTwo[2], secPic->stride[2] / sizeof(*vShort2),
>> widthC, heightC, shift, mask);
>> +            }
>> +        }
>> +    }
>> +
>> +    if (!(firstPic->bitDepth == 8 && X265_DEPTH == 8))
>> +    {
>> +        yFirstPic = m_dupPicOne[0]; ySecPic = m_dupPicTwo[0];
>> +        uFirstPic = m_dupPicOne[1]; uSecPic = m_dupPicTwo[1];
>> +        vFirstPic = m_dupPicOne[2]; vSecPic = m_dupPicTwo[2];
>> +    }
>> +
>> +    //Compute SSD
>> +    ssdY = computeSSD(yFirstPic, ySecPic, strideL, widthL, heightL,
>> param);
>> +    psnrY = (ssdY ? 10.0 * log10(refValueY / (double)ssdY) : 99.99);
>> +
>> +    if (param->internalCsp != X265_CSP_I400)
>> +    {
>> +        ssdU = computeSSD(uFirstPic, uSecPic, strideC, widthC, heightC,
>> param);
>> +        ssdV = computeSSD(vFirstPic, vSecPic, strideC, widthC, heightC,
>> param);
>> +        psnrU = (ssdU ? 10.0 * log10(refValueC / (double)ssdU) : 99.99);
>> +        psnrV = (ssdV ? 10.0 * log10(refValueC / (double)ssdV) : 99.99);
>> +    }
>> +
>> +    //Compute PSNR(picN,pic(N+1))
>> +    return psnrWeight = (psnrY * 6 + psnrU + psnrV) / 8;
>> +}
>> +
>> +void Encoder::copyPicture(x265_picture *dest, const x265_picture *src)
>> +{
>> +    dest->poc = src->poc;
>> +    dest->pts = src->pts;
>> +    dest->userSEI = src->userSEI;
>> +    dest->bitDepth = src->bitDepth;
>> +    dest->framesize = src->framesize;
>> +    dest->height = src->height;
>> +    dest->width = src->width;
>> +    dest->colorSpace = src->colorSpace;
>> +    dest->userSEI = src->userSEI;
>> +    dest->rpu.payload = src->rpu.payload;
>> +    dest->picStruct = src->picStruct;
>> +    dest->stride[0] = src->stride[0];
>> +    dest->stride[1] = src->stride[1];
>> +    dest->stride[2] = src->stride[2];
>> +    memcpy(dest->planes[0], src->planes[0], src->framesize *
>> sizeof(char));
>> +    dest->planes[1] = (char*)dest->planes[0] + src->stride[0] *
>> src->height;
>> +    dest->planes[2] = (char*)dest->planes[1] + src->stride[1] *
>> (src->height >> x265_cli_csps[src->colorSpace].height[1]);
>> +}
>> +
>>  /**
>>   * Feed one new input frame into the encoder, get one frame out. If
>> pic_in is
>>   * NULL, a flush condition is implied and pic_in must be NULL for all
>> subsequent
>> @@ -1004,6 +1324,10 @@
>>      if (m_aborted)
>>          return -1;
>>
>> +    const x265_picture* inputPic = NULL;
>> +    static int written = 0, read = 0;
>> +    bool dontRead = false;
>> +
>>      if (m_exportedPic)
>>      {
>>          if (!m_param->bUseAnalysisFile && m_param->analysisSave)
>> @@ -1012,25 +1336,84 @@
>>          m_exportedPic = NULL;
>>          m_dpb->recycleUnreferenced();
>>      }
>> -    if (pic_in && (!m_param->chunkEnd || (m_encodedFrameNum <
>> m_param->chunkEnd)))
>> -    {
>> -        if (m_latestParam->forceFlush == 1)
>> +    if ((pic_in && (!m_param->chunkEnd || (m_encodedFrameNum <
>> m_param->chunkEnd))) || (m_param->bEnableFrameDuplication && !pic_in &&
>> (read < written)))
>> +    {
>> +        if ((m_param->bEnableFrameDuplication && !pic_in && (read <
>> written)))
>> +            dontRead = true;
>> +        else
>>          {
>> -            m_lookahead->setLookaheadQueue();
>> -            m_latestParam->forceFlush = 0;
>> +            if (m_latestParam->forceFlush == 1)
>> +            {
>> +                m_lookahead->setLookaheadQueue();
>> +                m_latestParam->forceFlush = 0;
>> +            }
>> +            if (m_latestParam->forceFlush == 2)
>> +            {
>> +                m_lookahead->m_filled = false;
>> +                m_latestParam->forceFlush = 0;
>> +            }
>> +
>> +            if (pic_in->bitDepth < 8 || pic_in->bitDepth > 16)
>> +            {
>> +                x265_log(m_param, X265_LOG_ERROR, "Input bit depth (%d)
>> must be between 8 and 16\n",
>> +                    pic_in->bitDepth);
>> +                return -1;
>> +            }
>>          }
>> -        if (m_latestParam->forceFlush == 2)
>> +
>> +        if (m_param->bEnableFrameDuplication)
>>          {
>> -            m_lookahead->m_filled = false;
>> -            m_latestParam->forceFlush = 0;
>> +            double psnrWeight = 0;
>> +
>> +            if (!dontRead)
>> +            {
>> +                if (!m_dupBuffer[0]->bOccupied)
>> +                {
>> +                    copyPicture(m_dupBuffer[0]->dupPic, pic_in);
>> +                    m_dupBuffer[0]->bOccupied = true;
>> +                    written++;
>> +                    return 0;
>> +                }
>> +                else if (!m_dupBuffer[1]->bOccupied)
>> +                {
>> +                    copyPicture(m_dupBuffer[1]->dupPic, pic_in);
>> +                    m_dupBuffer[1]->bOccupied = true;
>> +                    written++;
>> +                }
>> +
>> +                psnrWeight = ComputePSNR(m_dupBuffer[0]->dupPic,
>> m_dupBuffer[1]->dupPic, m_param);
>> +
>> +                if (psnrWeight >= m_param->dupThreshold)
>> +                {
>> +                    if (m_dupBuffer[0]->bDup)
>> +                    {
>> +                        m_dupBuffer[0]->dupPic->picStruct = tripling;
>> +                        m_dupBuffer[0]->bDup = false;
>> +                        read++;
>> +                    }
>> +                    else
>> +                    {
>> +                        m_dupBuffer[0]->dupPic->picStruct = doubling;
>> +                        m_dupBuffer[0]->bDup = true;
>> +                        m_dupBuffer[1]->bOccupied = false;
>> +                        read++;
>> +                        return 0;
>> +                    }
>> +                }
>> +                else if (m_dupBuffer[0]->bDup)
>> +                    m_dupBuffer[0]->bDup = false;
>> +                else
>> +                    m_dupBuffer[0]->dupPic->picStruct = 0;
>> +            }
>> +
>> +            if (read < written)
>> +            {
>> +                inputPic = m_dupBuffer[0]->dupPic;
>> +                read++;
>> +            }
>>          }
>> -
>> -        if (pic_in->bitDepth < 8 || pic_in->bitDepth > 16)
>> -        {
>> -            x265_log(m_param, X265_LOG_ERROR, "Input bit depth (%d) must
>> be between 8 and 16\n",
>> -                     pic_in->bitDepth);
>> -            return -1;
>> -        }
>> +        else
>> +            inputPic = pic_in;
>>
>>          Frame *inFrame;
>>          x265_param* p = (m_reconfigure || m_reconfigureRc) ?
>> m_latestParam : m_param;
>> @@ -1038,7 +1421,7 @@
>>          {
>>              inFrame = new Frame;
>>              inFrame->m_encodeStartTime = x265_mdate();
>> -            if (inFrame->create(p, pic_in->quantOffsets))
>> +            if (inFrame->create(p, inputPic->quantOffsets))
>>              {
>>                  /* the first PicYuv created is asked to generate the CU
>> and block unit offset
>>                   * arrays which are then shared with all subsequent
>> PicYuv (orig and recon)
>> @@ -1098,34 +1481,35 @@
>>          }
>>
>>          /* Copy input picture into a Frame and PicYuv, send to lookahead
>> */
>> -        inFrame->m_fencPic->copyFromPicture(*pic_in, *m_param,
>> m_sps.conformanceWindow.rightOffset, m_sps.conformanceWindow.bottomOffset);
>> +        inFrame->m_fencPic->copyFromPicture(*inputPic, *m_param,
>> m_sps.conformanceWindow.rightOffset, m_sps.conformanceWindow.bottomOffset);
>>
>>          inFrame->m_poc       = ++m_pocLast;
>> -        inFrame->m_userData  = pic_in->userData;
>> -        inFrame->m_pts       = pic_in->pts;
>> -        inFrame->m_forceqp   = pic_in->forceqp;
>> +        inFrame->m_userData  = inputPic->userData;
>> +        inFrame->m_pts       = inputPic->pts;
>> +        inFrame->m_forceqp   = inputPic->forceqp;
>>          inFrame->m_param     = (m_reconfigure || m_reconfigureRc) ?
>> m_latestParam : m_param;
>> +        inFrame->m_picStruct = inputPic->picStruct;
>>          if (m_param->bField && m_param->interlaceMode)
>> -            inFrame->m_fieldNum = pic_in->fieldNum;
>> -
>> -        copyUserSEIMessages(inFrame, pic_in);
>> -
>> -        /*Copy Dolby Vision RPU from pic_in to frame*/
>> -        if (pic_in->rpu.payloadSize)
>> +            inFrame->m_fieldNum = inputPic->fieldNum;
>> +
>> +        copyUserSEIMessages(inFrame, inputPic);
>> +
>> +        /*Copy Dolby Vision RPU from inputPic to frame*/
>> +        if (inputPic->rpu.payloadSize)
>>          {
>> -            inFrame->m_rpu.payloadSize = pic_in->rpu.payloadSize;
>> -            inFrame->m_rpu.payload = new
>> uint8_t[pic_in->rpu.payloadSize];
>> -            memcpy(inFrame->m_rpu.payload, pic_in->rpu.payload,
>> pic_in->rpu.payloadSize);
>> +            inFrame->m_rpu.payloadSize = inputPic->rpu.payloadSize;
>> +            inFrame->m_rpu.payload = new
>> uint8_t[inputPic->rpu.payloadSize];
>> +            memcpy(inFrame->m_rpu.payload, inputPic->rpu.payload,
>> inputPic->rpu.payloadSize);
>>          }
>>
>> -        if (pic_in->quantOffsets != NULL)
>> +        if (inputPic->quantOffsets != NULL)
>>          {
>>              int cuCount;
>>              if (m_param->rc.qgSize == 8)
>>                  cuCount = inFrame->m_lowres.maxBlocksInRowFullRes *
>> inFrame->m_lowres.maxBlocksInColFullRes;
>>              else
>>                  cuCount = inFrame->m_lowres.maxBlocksInRow *
>> inFrame->m_lowres.maxBlocksInCol;
>> -            memcpy(inFrame->m_quantOffsets, pic_in->quantOffsets,
>> cuCount * sizeof(float));
>> +            memcpy(inFrame->m_quantOffsets, inputPic->quantOffsets,
>> cuCount * sizeof(float));
>>          }
>>
>>          if (m_pocLast == 0)
>> @@ -1147,9 +1531,9 @@
>>          }
>>
>>          /* Use the frame types from the first pass, if available */
>> -        int sliceType = (m_param->rc.bStatRead) ?
>> m_rateControl->rateControlSliceType(inFrame->m_poc) : pic_in->sliceType;
>> -
>> -        /* In analysisSave mode, x265_analysis_data is allocated in
>> pic_in and inFrame points to this */
>> +        int sliceType = (m_param->rc.bStatRead) ?
>> m_rateControl->rateControlSliceType(inFrame->m_poc) : inputPic->sliceType;
>> +
>> +        /* In analysisSave mode, x265_analysis_data is allocated in
>> inputPic and inFrame points to this */
>>          /* Load analysis data before lookahead->addPicture, since
>> sliceType has been decided */
>>          if (m_param->analysisLoad)
>>          {
>> @@ -1157,7 +1541,7 @@
>>              static int paramBytes = 0;
>>              if (!inFrame->m_poc && m_param->bAnalysisType != HEVC_INFO)
>>              {
>> -                x265_analysis_data analysisData = pic_in->analysisData;
>> +                x265_analysis_data analysisData = inputPic->analysisData;
>>                  paramBytes = validateAnalysisData(&analysisData, 0);
>>                  if (paramBytes == -1)
>>                  {
>> @@ -1178,10 +1562,10 @@
>>                  uint32_t outOfBoundaryLowresH = extendedHeight -
>> m_param->sourceHeight / 2;
>>                  if (outOfBoundaryLowresH * 2 >= m_param->maxCUSize)
>>                      cuLocInFrame.skipHeight = true;
>> -                readAnalysisFile(&inFrame->m_analysisData,
>> inFrame->m_poc, pic_in, paramBytes, cuLocInFrame);
>> +                readAnalysisFile(&inFrame->m_analysisData,
>> inFrame->m_poc, inputPic, paramBytes, cuLocInFrame);
>>              }
>>              else
>> -                readAnalysisFile(&inFrame->m_analysisData,
>> inFrame->m_poc, pic_in, paramBytes);
>> +                readAnalysisFile(&inFrame->m_analysisData,
>> inFrame->m_poc, inputPic, paramBytes);
>>              inFrame->m_poc = inFrame->m_analysisData.poc;
>>              sliceType = inFrame->m_analysisData.sliceType;
>>              inFrame->m_lowres.bScenecut =
>> !!inFrame->m_analysisData.bScenecut;
>> @@ -1202,9 +1586,9 @@
>>                  }
>>              }
>>          }
>> -        if (m_param->bUseRcStats && pic_in->rcData)
>> +        if (m_param->bUseRcStats && inputPic->rcData)
>>          {
>> -            RcStats* rc = (RcStats*)pic_in->rcData;
>> +            RcStats* rc = (RcStats*)inputPic->rcData;
>>              m_rateControl->m_accumPQp = rc->cumulativePQp;
>>              m_rateControl->m_accumPNorm = rc->cumulativePNorm;
>>              m_rateControl->m_isNextGop = true;
>> @@ -1228,6 +1612,18 @@
>>              }
>>              m_param->bUseRcStats = 0;
>>          }
>> +
>> +        if (m_param->bEnableFrameDuplication && ((read < written) ||
>> (m_dupBuffer[0]->dupPic->picStruct == tripling && (read <= written))))
>> +        {
>> +            if (m_dupBuffer[0]->dupPic->picStruct == tripling)
>> +                m_dupBuffer[0]->bOccupied = m_dupBuffer[1]->bOccupied =
>> false;
>> +            else
>> +            {
>> +                copyPicture(m_dupBuffer[0]->dupPic,
>> m_dupBuffer[1]->dupPic);
>> +                m_dupBuffer[1]->bOccupied = false;
>> +            }
>> +        }
>> +
>>          if (m_reconfigureRc)
>>              inFrame->m_reconfigureRc = true;
>>
>> @@ -1262,7 +1658,7 @@
>>              Slice *slice = outFrame->m_encData->m_slice;
>>              x265_frame_stats* frameData = NULL;
>>
>> -            /* Free up pic_in->analysisData since it has already been
>> used */
>> +            /* Free up inputPic->analysisData since it has already been
>> used */
>>              if ((m_param->analysisLoad && !m_param->analysisSave) ||
>> ((m_param->bAnalysisType == AVC_INFO) && slice->m_sliceType != I_SLICE))
>>                  x265_free_analysis_data(m_param,
>> &outFrame->m_analysisData);
>>
>> @@ -3174,6 +3570,30 @@
>>          p->dynamicRd = 0;
>>          x265_log(p, X265_LOG_WARNING, "Dynamic-rd disabled, requires RD
>> <= 4, VBV and aq-mode enabled\n");
>>      }
>> +
>> +    if (!p->bEnableFrameDuplication && p->dupThreshold &&
>> p->dupThreshold != 70)
>> +    {
>> +        x265_log(p, X265_LOG_WARNING, "Frame-duplication threshold works
>> only with frame-duplication enabled. Enabling frame-duplication.\n");
>> +        p->bEnableFrameDuplication = 1;
>> +    }
>> +
>> +    if (p->bEnableFrameDuplication && p->interlaceMode)
>> +    {
>> +        x265_log(p, X265_LOG_WARNING, "Frame-duplication does not
>> support interlace mode. Disabling Frame Duplication.\n");
>> +        p->bEnableFrameDuplication = 0;
>> +    }
>> +
>> +    if (p->bEnableFrameDuplication && p->pictureStructure != 0 &&
>> p->pictureStructure != -1)
>> +    {
>> +        x265_log(p, X265_LOG_WARNING, "Frame-duplication works only with
>> pic_struct = 0. Setting pic-struct = 0.\n");
>> +        p->pictureStructure = 0;
>> +    }
>> +
>> +    if (m_param->bEnableFrameDuplication && (!bIsVbv ||
>> !m_param->bEmitHRDSEI))
>> +    {
>> +        x265_log(m_param, X265_LOG_WARNING, "Frame-duplication require
>> NAL HRD and VBV parameters. Disabling frame duplication\n");
>> +        m_param->bEnableFrameDuplication = 0;
>> +    }
>>  #ifdef ENABLE_HDR10_PLUS
>>      if (m_param->bDhdr10opt && m_param->toneMapFile == NULL)
>>      {
>> diff -r c4b098f973e6 -r fa0d04affb8a source/encoder/encoder.h
>> --- a/source/encoder/encoder.h Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/encoder/encoder.h Fri Sep 13 15:57:26 2019 +0530
>> @@ -88,6 +88,9 @@
>>  };
>>
>>  #define MAX_NUM_REF_IDX 64
>> +#define DUP_BUFFER 2
>> +#define doubling 7
>> +#define tripling 8
>>
>>  struct RefIdxLastGOP
>>  {
>> @@ -141,6 +144,18 @@
>>      }
>>  };
>>
>> +struct AdaptiveFrameDuplication
>> +{
>> +    x265_picture* dupPic;
>> +    char* dupPlane;
>> +
>> +    //Flag to denote the availability of the picture buffer.
>> +    bool bOccupied;
>> +
>> +    //Flag to check whether the picture has duplicated.
>> +    bool bDup;
>> +};
>> +
>>
>>  class FrameEncoder;
>>  class DPB;
>> @@ -189,6 +204,10 @@
>>      x265_param*        m_latestParam;     // Holds latest param during a
>> reconfigure
>>      RateControl*       m_rateControl;
>>      Lookahead*         m_lookahead;
>> +    AdaptiveFrameDuplication* m_dupBuffer[DUP_BUFFER];      // picture
>> buffer of size 2
>> +    /*Frame duplication: Two pictures used to compute PSNR */
>> +    pixel*             m_dupPicOne[3];
>> +    pixel*             m_dupPicTwo[3];
>>
>>      bool               m_externalFlush;
>>      /* Collect statistics globally */
>> @@ -324,6 +343,12 @@
>>
>>      void calcRefreshInterval(Frame* frameEnc);
>>
>> +    uint64_t computeSSD(pixel *fenc, pixel *rec, intptr_t stride,
>> uint32_t width, uint32_t height, x265_param *param);
>> +
>> +    double ComputePSNR(x265_picture *firstPic, x265_picture *secPic,
>> x265_param *param);
>> +
>> +    void copyPicture(x265_picture *dest, const x265_picture *src);
>> +
>>      void initRefIdx();
>>      void analyseRefIdx(int *numRefIdx);
>>      void updateRefIdx();
>> diff -r c4b098f973e6 -r fa0d04affb8a source/encoder/frameencoder.cpp
>> --- a/source/encoder/frameencoder.cpp Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/encoder/frameencoder.cpp Fri Sep 13 15:57:26 2019 +0530
>> @@ -713,6 +713,8 @@
>>                          sei->m_picStruct = (poc & 1) ? 2 /* bottom */ :
>> 1 /* top */;
>>                  }
>>              }
>> +            else if (m_param->bEnableFrameDuplication)
>> +                sei->m_picStruct = m_frame->m_picStruct;
>>              else
>>                  sei->m_picStruct = m_param->pictureStructure;
>>
>> diff -r c4b098f973e6 -r fa0d04affb8a source/encoder/framefilter.cpp
>> --- a/source/encoder/framefilter.cpp Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/encoder/framefilter.cpp Fri Sep 13 15:57:26 2019 +0530
>> @@ -32,7 +32,6 @@
>>
>>  using namespace X265_NS;
>>
>> -static uint64_t computeSSD(pixel *fenc, pixel *rec, intptr_t stride,
>> uint32_t width, uint32_t height);
>>  static float calculateSSIM(pixel *pix1, intptr_t stride1, pixel *pix2,
>> intptr_t stride2, uint32_t width, uint32_t height, void *buf, uint32_t&
>> cnt);
>>
>>  namespace X265_NS
>> @@ -673,7 +672,7 @@
>>          uint32_t width  = reconPic->m_picWidth - m_pad[0];
>>          uint32_t height = m_parallelFilter[row].getCUHeight();
>>
>> -        uint64_t ssdY = computeSSD(fencPic->getLumaAddr(cuAddr),
>> reconPic->getLumaAddr(cuAddr), stride, width, height);
>> +        uint64_t ssdY =
>> m_frameEncoder->m_top->computeSSD(fencPic->getLumaAddr(cuAddr),
>> reconPic->getLumaAddr(cuAddr), stride, width, height, m_param);
>>          m_frameEncoder->m_SSDY += ssdY;
>>
>>          if (m_param->internalCsp != X265_CSP_I400)
>> @@ -682,8 +681,8 @@
>>              width >>= m_hChromaShift;
>>              stride = reconPic->m_strideC;
>>
>> -            uint64_t ssdU = computeSSD(fencPic->getCbAddr(cuAddr),
>> reconPic->getCbAddr(cuAddr), stride, width, height);
>> -            uint64_t ssdV = computeSSD(fencPic->getCrAddr(cuAddr),
>> reconPic->getCrAddr(cuAddr), stride, width, height);
>> +            uint64_t ssdU =
>> m_frameEncoder->m_top->computeSSD(fencPic->getCbAddr(cuAddr),
>> reconPic->getCbAddr(cuAddr), stride, width, height, m_param);
>> +            uint64_t ssdV =
>> m_frameEncoder->m_top->computeSSD(fencPic->getCrAddr(cuAddr),
>> reconPic->getCrAddr(cuAddr), stride, width, height, m_param);
>>
>>              m_frameEncoder->m_SSDU += ssdU;
>>              m_frameEncoder->m_SSDV += ssdV;
>> @@ -825,71 +824,6 @@
>>      }
>>  }
>>
>> -static uint64_t computeSSD(pixel *fenc, pixel *rec, intptr_t stride,
>> uint32_t width, uint32_t height)
>> -{
>> -    uint64_t ssd = 0;
>> -
>> -    if ((width | height) & 3)
>> -    {
>> -        /* Slow Path */
>> -        for (uint32_t y = 0; y < height; y++)
>> -        {
>> -            for (uint32_t x = 0; x < width; x++)
>> -            {
>> -                int diff = (int)(fenc[x] - rec[x]);
>> -                ssd += diff * diff;
>> -            }
>> -
>> -            fenc += stride;
>> -            rec += stride;
>> -        }
>> -
>> -        return ssd;
>> -    }
>> -
>> -    uint32_t y = 0;
>> -
>> -    /* Consume rows in ever narrower chunks of height */
>> -    for (int size = BLOCK_64x64; size >= BLOCK_4x4 && y < height; size--)
>> -    {
>> -        uint32_t rowHeight = 1 << (size + 2);
>> -
>> -        for (; y + rowHeight <= height; y += rowHeight)
>> -        {
>> -            uint32_t y1, x = 0;
>> -
>> -            /* Consume each row using the largest square blocks possible
>> */
>> -            if (size == BLOCK_64x64 && !(stride & 31))
>> -                for (; x + 64 <= width; x += 64)
>> -                    ssd += primitives.cu[BLOCK_64x64].sse_pp(fenc + x,
>> stride, rec + x, stride);
>> -
>> -            if (size >= BLOCK_32x32 && !(stride & 15))
>> -                for (; x + 32 <= width; x += 32)
>> -                    for (y1 = 0; y1 + 32 <= rowHeight; y1 += 32)
>> -                        ssd += primitives.cu[BLOCK_32x32].sse_pp(fenc +
>> y1 * stride + x, stride, rec + y1 * stride + x, stride);
>> -
>> -            if (size >= BLOCK_16x16)
>> -                for (; x + 16 <= width; x += 16)
>> -                    for (y1 = 0; y1 + 16 <= rowHeight; y1 += 16)
>> -                        ssd += primitives.cu[BLOCK_16x16].sse_pp(fenc +
>> y1 * stride + x, stride, rec + y1 * stride + x, stride);
>> -
>> -            if (size >= BLOCK_8x8)
>> -                for (; x + 8 <= width; x += 8)
>> -                    for (y1 = 0; y1 + 8 <= rowHeight; y1 += 8)
>> -                        ssd += primitives.cu[BLOCK_8x8].sse_pp(fenc +
>> y1 * stride + x, stride, rec + y1 * stride + x, stride);
>> -
>> -            for (; x + 4 <= width; x += 4)
>> -                for (y1 = 0; y1 + 4 <= rowHeight; y1 += 4)
>> -                    ssd += primitives.cu[BLOCK_4x4].sse_pp(fenc + y1 *
>> stride + x, stride, rec + y1 * stride + x, stride);
>> -
>> -            fenc += stride * rowHeight;
>> -            rec += stride * rowHeight;
>> -        }
>> -    }
>> -
>> -    return ssd;
>> -}
>> -
>>  /* Function to calculate SSIM for each row */
>>  static float calculateSSIM(pixel *pix1, intptr_t stride1, pixel *pix2,
>> intptr_t stride2, uint32_t width, uint32_t height, void *buf, uint32_t& cnt)
>>  {
>> diff -r c4b098f973e6 -r fa0d04affb8a source/input/y4m.cpp
>> --- a/source/input/y4m.cpp Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/input/y4m.cpp Fri Sep 13 15:57:26 2019 +0530
>> @@ -388,6 +388,7 @@
>>          pic.bitDepth = depth;
>>          pic.framesize = framesize;
>>          pic.height = height;
>> +        pic.width = width;
>>          pic.colorSpace = colorSpace;
>>          pic.stride[0] = width * pixelbytes;
>>          pic.stride[1] = pic.stride[0] >>
>> x265_cli_csps[colorSpace].width[1];
>> diff -r c4b098f973e6 -r fa0d04affb8a source/input/yuv.cpp
>> --- a/source/input/yuv.cpp Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/input/yuv.cpp Fri Sep 13 15:57:26 2019 +0530
>> @@ -204,6 +204,7 @@
>>          pic.bitDepth = depth;
>>          pic.framesize = framesize;
>>          pic.height = height;
>> +        pic.width = width;
>>          pic.stride[0] = width * pixelbytes;
>>          pic.stride[1] = pic.stride[0] >>
>> x265_cli_csps[colorSpace].width[1];
>>          pic.stride[2] = pic.stride[0] >>
>> x265_cli_csps[colorSpace].width[2];
>> diff -r c4b098f973e6 -r fa0d04affb8a source/test/regression-tests.txt
>> --- a/source/test/regression-tests.txt Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/test/regression-tests.txt Fri Sep 13 15:57:26 2019 +0530
>> @@ -156,6 +156,7 @@
>>  720p50_parkrun_ter.y4m,--preset medium --bitrate 400 --hme
>>  ducks_take_off_420_1_720p50.y4m,--preset medium --aq-mode 4 --crf 22
>> --no-cutree
>>  ducks_take_off_420_1_720p50.y4m,--preset medium --selective-sao 4 --sao
>> --crf 20
>> +Traffic_4096x2048_30p.y4m, --preset medium --frame-dup --dup-threshold
>> 60 --hrd --bitrate 10000 --vbv-bufsize 15000 --vbv-maxrate 12000
>>
>>  # Main12 intraCost overflow bug test
>>  720p50_parkrun_ter.y4m,--preset medium
>> diff -r c4b098f973e6 -r fa0d04affb8a source/x265.cpp
>> --- a/source/x265.cpp Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/x265.cpp Fri Sep 13 15:57:26 2019 +0530
>> @@ -541,10 +541,11 @@
>>          return true;
>>      }
>>
>> -    /* Unconditionally accept height/width/csp from file info */
>> +    /* Unconditionally accept height/width/csp/bitDepth from file info */
>>      param->sourceWidth = info.width;
>>      param->sourceHeight = info.height;
>>      param->internalCsp = info.csp;
>> +    param->sourceBitDepth = info.depth;
>>
>>      /* Accept fps and sar from file info if not specified by user */
>>      if (param->fpsDenom == 0 || param->fpsNum == 0)
>> diff -r c4b098f973e6 -r fa0d04affb8a source/x265.h
>> --- a/source/x265.h Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/x265.h Fri Sep 13 15:57:26 2019 +0530
>> @@ -455,16 +455,21 @@
>>       * multi pass ratecontrol mode. */
>>      void*  rcData;
>>
>> -    uint64_t framesize;
>> +    size_t framesize;
>>
>>      int    height;
>>
>> +    int    width;
>> +
>>
>
> [PR] Please add new fields in an externally-exposed structure only to the
> end to ensure backwards compatibility with applications that cannot / don't
> want to recompile.
>
>
>>      // pts is reordered in the order of encoding.
>>      int64_t reorderedPts;
>>
>>      //Dolby Vision RPU metadata
>>      x265_dolby_vision_rpu rpu;
>> -
>> +
>> +    //SEI picture structure message
>> +    uint32_t picStruct;
>> +
>>      int fieldNum;
>>  } x265_picture;
>>
>> @@ -844,6 +849,9 @@
>>       * Future builds may support 12bit pixels. */
>>      int       internalBitDepth;
>>
>> +    /*Input sequence bit depth. It can be either 8bit, 10bit or 12bit.*/
>> +    int       sourceBitDepth;
>> +
>>
>
> [PR] Please add new fields in an externally-exposed structure only to the
> end to ensure backwards compatibility with applications that cannot / don't
> want to recompile.
>
>
>>      /* Color space of internal pictures, must match color space of input
>>       * pictures */
>>      int       internalCsp;
>> @@ -1327,6 +1335,19 @@
>>   * */
>>   int       pictureStructure;
>>
>> +    /*
>> +    * Signals picture structure SEI timing message for every frame
>> +    * picture structure 7 is signalled for frame doubling
>> +    * picture structure 8 is signalled for frame tripling
>> +    * */
>> +    int       bEnableFrameDuplication;
>> +
>> +    /*
>> +    * For adaptive frame duplication, a threshold is set above which the
>> frames are similar.
>> +    * User can set a variable threshold. Default 70.
>> +    * */
>> +    int       dupThreshold;
>> +
>>
>
> [PR] Please add new fields in an externally-exposed structure only to the
> end to ensure backwards compatibility with applications that cannot / don't
> want to recompile.
>
>
>>      struct
>>      {
>>          /* Explicit mode of rate-control, necessary for API users. It
>> must
>> diff -r c4b098f973e6 -r fa0d04affb8a source/x265cli.h
>> --- a/source/x265cli.h Tue Aug 13 10:51:21 2019 +0530
>> +++ b/source/x265cli.h Fri Sep 13 15:57:26 2019 +0530
>> @@ -321,6 +321,9 @@
>>      { "hevc-aq", no_argument, NULL, 0 },
>>      { "no-hevc-aq", no_argument, NULL, 0 },
>>      { "qp-adaptation-range", required_argument, NULL, 0 },
>> +    { "frame-dup",            no_argument, NULL, 0 },
>> +    { "no-frame-dup", no_argument, NULL, 0 },
>> +    { "dup-threshold", required_argument, NULL, 0 },
>>  #ifdef SVT_HEVC
>>      { "svt",     no_argument, NULL, 0 },
>>      { "no-svt",  no_argument, NULL, 0 },
>> @@ -638,6 +641,8 @@
>>      H1("   --recon-depth <integer>       Bit-depth of reconstructed raw
>> image file. Defaults to input bit depth, or 8 if Y4M\n");
>>      H1("   --recon-y4m-exec <string>     pipe reconstructed frames to
>> Y4M viewer, ex:\"ffplay -i pipe:0 -autoexit\"\n");
>>      H0("   --lowpass-dct                 Use low-pass subband dct
>> approximation. Default %s\n", OPT(param->bLowPassDct));
>> +    H0("   --[no-]frame-dup              Enable Frame duplication.
>> Default %s\n", OPT(param->bEnableFrameDuplication));
>> +    H0("   --dup-threshold <integer>     PSNR threshold for Frame
>> duplication. Default %d\n", param->dupThreshold);
>>  #ifdef SVT_HEVC
>>      H0("   --[no]svt                     Enable SVT HEVC encoder %s\n",
>> OPT(param->bEnableSvtHevc));
>>      H0("   --[no-]svt-hme                Enable Hierarchial motion
>> estimation(HME) in SVT HEVC encoder \n");
>>
>>
>> _______________________________________________
> x265-devel mailing list
> x265-devel at videolan.org
> https://mailman.videolan.org/listinfo/x265-devel
>
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