Why are file reads required to compute vmaf? The recon and original yuv
sources are available.

Why floating point reads?

On Thu, Apr 12, 2018 at 5:31 PM, Ashok Kumar Mishra <
as...@multicorewareinc.com> wrote:

>
>
> On Thu, Apr 12, 2018 at 4:43 PM, <induma...@multicorewareinc.com> wrote:
>
>> # HG changeset patch
>> # User IndumathiR<induma...@multicorewareinc.com>
>> # Date 1518528290 -19800
>> #      Tue Feb 13 18:54:50 2018 +0530
>> # Node ID 27e3b161cd8b59ad1cae67a96e11e3e0506d5017
>> # Parent  04a337abd70de269cef7d9655365f3a3ebde02aa
>> Add VMAF suppport to report per frame and aggregate VMAF score
>>
>> diff -r 04a337abd70d -r 27e3b161cd8b doc/reST/api.rst
>> --- a/doc/reST/api.rst  Thu Apr 12 15:10:59 2018 +0530
>> +++ b/doc/reST/api.rst  Tue Feb 13 18:54:50 2018 +0530
>> @@ -398,7 +398,30 @@
>>          *     release library static allocations, reset configured CTU
>> size */
>>         void x265_cleanup(void);
>>
>> +VMAF (Video Multi-Method Assessment Fusion)
>> +==========================================
>>
>> +If you set the ENABLE_LIBVMAF cmake option to ON, then x265 will report
>> per frame
>> +and aggregate VMAF score for the given input and dump the scores in csv
>> file.
>> +The user also need to specify the :option:`--recon` in command line to
>> get the VMAF scores.
>> +
>> +    /* x265_calculate_vmafScore:
>> +     *    returns VMAF score for the input video.
>> +     *    This api must be called only after encoding was done. */
>> +    double x265_calculate_vmafscore(x265_param*, x265_vmaf_data*);
>> +
>> +    /* x265_calculate_vmaf_framelevelscore:
>> +     *    returns VMAF score for each frame in a given input video. */
>> +    double x265_calculate_vmaf_framelevelscore(x265_vmaf_framedata*);
>> +
>> +.. Note::
>> +
>> +    When setting ENABLE_LIBVMAF cmake option to ON, it is recommended to
>> +    also set ENABLE_SHARED to OFF to prevent build problems.
>> +    We only need the static library from these builds.
>> +
>> +    Binaries build with windows will not have VMAF support.
>> +
>>  Multi-library Interface
>>  =======================
>>
>> diff -r 04a337abd70d -r 27e3b161cd8b source/CMakeLists.txt
>> --- a/source/CMakeLists.txt     Thu Apr 12 15:10:59 2018 +0530
>> +++ b/source/CMakeLists.txt     Tue Feb 13 18:54:50 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 157)
>> +set(X265_BUILD 158)
>>  configure_file("${PROJECT_SOURCE_DIR}/x265.def.in"
>>                 "${PROJECT_BINARY_DIR}/x265.def")
>>  configure_file("${PROJECT_SOURCE_DIR}/x265_config.h.in"
>> @@ -109,6 +109,11 @@
>>      if(NO_ATOMICS)
>>          add_definitions(-DNO_ATOMICS=1)
>>      endif(NO_ATOMICS)
>> +    find_library(VMAF vmaf)
>> +    option(ENABLE_LIBVMAF "Enable VMAF" OFF)
>> +    if(ENABLE_LIBVMAF)
>> +        add_definitions(-DENABLE_LIBVMAF)
>> +    endif()
>>  endif(UNIX)
>>
>>  if(X64 AND NOT WIN32)
>> @@ -536,6 +541,9 @@
>>  if(EXTRA_LIB)
>>      target_link_libraries(x265-static ${EXTRA_LIB})
>>  endif()
>> +if(ENABLE_LIBVMAF)
>> +    target_link_libraries(x265-static ${VMAF})
>> +endif()
>>  install(TARGETS x265-static
>>      LIBRARY DESTINATION ${LIB_INSTALL_DIR}
>>      ARCHIVE DESTINATION ${LIB_INSTALL_DIR})
>> diff -r 04a337abd70d -r 27e3b161cd8b source/common/picyuv.h
>> --- a/source/common/picyuv.h    Thu Apr 12 15:10:59 2018 +0530
>> +++ b/source/common/picyuv.h    Tue Feb 13 18:54:50 2018 +0530
>> @@ -72,6 +72,7 @@
>>      pixel   m_maxChromaVLevel;
>>      pixel   m_minChromaVLevel;
>>      double  m_avgChromaVLevel;
>> +    double  m_vmafScore;
>>      x265_param *m_param;
>>
>>      PicYuv();
>> diff -r 04a337abd70d -r 27e3b161cd8b source/encoder/api.cpp
>> --- a/source/encoder/api.cpp    Thu Apr 12 15:10:59 2018 +0530
>> +++ b/source/encoder/api.cpp    Tue Feb 13 18:54:50 2018 +0530
>> @@ -31,6 +31,10 @@
>>  #include "nal.h"
>>  #include "bitcost.h"
>>
>> +#if ENABLE_LIBVMAF
>> +#include "libvmaf.h"
>> +#endif
>> +
>>  /* multilib namespace reflectors */
>>  #if LINKED_8BIT
>>  namespace x265_8bit {
>> @@ -302,13 +306,34 @@
>>          encoder->fetchStats(outputStats, statsSizeBytes);
>>      }
>>  }
>> +#if ENABLE_LIBVMAF
>> +void x265_vmaf_encoder_log(x265_encoder* enc, int argc, char **argv,
>> x265_param *param, x265_vmaf_data *vmafdata)
>> +{
>> +    if (enc)
>> +    {
>> +        Encoder *encoder = static_cast<Encoder*>(enc);
>> +        x265_stats stats;
>> +        stats.aggregateVmafScore = x265_calculate_vmafscore(param,
>> vmafdata);
>> +        if(vmafdata->reference_file)
>> +            fclose(vmafdata->reference_file);
>> +        if(vmafdata->distorted_file)
>> +            fclose(vmafdata->distorted_file);
>> +        if(vmafdata)
>> +            x265_free(vmafdata);
>> +        encoder->fetchStats(&stats, sizeof(stats));
>> +        int padx = encoder->m_sps.conformanceWindow.rightOffset;
>> +        int pady = encoder->m_sps.conformanceWindow.bottomOffset;
>> +        x265_csvlog_encode(encoder->m_param, &stats, padx, pady, argc,
>> argv);
>> +    }
>> +}
>> +#endif
>>
>>  void x265_encoder_log(x265_encoder* enc, int argc, char **argv)
>>  {
>>      if (enc)
>>      {
>>          Encoder *encoder = static_cast<Encoder*>(enc);
>> -        x265_stats stats;
>> +        x265_stats stats;
>>          encoder->fetchStats(&stats, sizeof(stats));
>>          int padx = encoder->m_sps.conformanceWindow.rightOffset;
>>          int pady = encoder->m_sps.conformanceWindow.bottomOffset;
>> @@ -457,7 +482,13 @@
>>      &x265_csvlog_frame,
>>      &x265_csvlog_encode,
>>      &x265_dither_image,
>> -    &x265_set_analysis_data
>> +    &x265_set_analysis_data,
>> +#if ENABLE_LIBVMAF
>> +    &x265_calculate_vmafscore,
>> +    &x265_calculate_vmaf_framelevelscore,
>> +    &x265_vmaf_encoder_log
>> +#endif
>> +
>>  };
>>
>>  typedef const x265_api* (*api_get_func)(int bitDepth);
>> @@ -751,6 +782,9 @@
>>                      /* detailed performance statistics */
>>                      fprintf(csvfp, ", DecideWait (ms), Row0Wait (ms),
>> Wall time (ms), Ref Wait Wall (ms), Total CTU time (ms),"
>>                          "Stall Time (ms), Total frame time (ms), Avg
>> WPP, Row Blocks");
>> +#if ENABLE_LIBVMAF
>> +                    fprintf(csvfp, ", VMAF Frame Score");
>> +#endif
>>                  }
>>                  fprintf(csvfp, "\n");
>>              }
>> @@ -759,6 +793,9 @@
>>                  fputs(summaryCSVHeader, csvfp);
>>                  if (param->csvLogLevel >= 2 || param->maxCLL ||
>> param->maxFALL)
>>                      fputs("MaxCLL, MaxFALL,", csvfp);
>> +#if ENABLE_LIBVMAF
>> +                fputs(" Aggregate VMAF Score,", csvfp);
>> +#endif
>>                  fputs(" Version\n", csvfp);
>>              }
>>          }
>> @@ -868,6 +905,9 @@
>>
>>             frameStats->totalFrameTime);
>>
>>          fprintf(param->csvfpt, " %.3lf, %d", frameStats->avgWPP,
>> frameStats->countRowBlocks);
>> +#if ENABLE_LIBVMAF
>> +        fprintf(param->csvfpt, ", %lf", frameStats->vmafFrameScore);
>> +#endif
>>      }
>>      fprintf(param->csvfpt, "\n");
>>      fflush(stderr);
>> @@ -886,7 +926,11 @@
>>              fputs(summaryCSVHeader, p->csvfpt);
>>              if (p->csvLogLevel >= 2 || p->maxCLL || p->maxFALL)
>>                  fputs("MaxCLL, MaxFALL,", p->csvfpt);
>> +#if ENABLE_LIBVMAF
>> +            fputs(" Aggregate VMAF score,", p->csvfpt);
>> +#endif
>>              fputs(" Version\n",p->csvfpt);
>> +
>>          }
>>          // CLI arguments or other
>>          if (argc)
>> @@ -919,7 +963,6 @@
>>          char buffer[200];
>>          strftime(buffer, 128, "%c", timeinfo);
>>          fprintf(p->csvfpt, ", %s, ", buffer);
>> -
>>          // elapsed time, fps, bitrate
>>          fprintf(p->csvfpt, "%.2f, %.2f, %.2f,",
>>              stats->elapsedEncodeTime, stats->encodedPictureCount /
>> stats->elapsedEncodeTime, stats->bitrate);
>> @@ -981,7 +1024,11 @@
>>              fprintf(p->csvfpt, " -, -, -, -, -, -, -,");
>>          if (p->csvLogLevel >= 2 || p->maxCLL || p->maxFALL)
>>              fprintf(p->csvfpt, " %-6u, %-6u,", stats->maxCLL,
>> stats->maxFALL);
>> +#if ENABLE_LIBVMAF
>> +        fprintf(p->csvfpt, " %lf,", stats->aggregateVmafScore);
>> +#endif
>>          fprintf(p->csvfpt, " %s\n", api->version_str);
>> +
>>      }
>>  }
>>
>> @@ -1072,4 +1119,318 @@
>>      }
>>  }
>>
>> +#if ENABLE_LIBVMAF
>> +/* Read y values of single frame for 8-bit input */
>> +int read_image_byte(FILE *file, float *buf, int width, int height, int
>> stride)
>> +{
>> +    char *byte_ptr = (char *)buf;
>> +    unsigned char *tmp_buf = 0;
>> +    int i, j;
>> +    int ret = 1;
>> +
>> +    if (width <= 0 || height <= 0)
>> +    {
>> +        goto fail_or_end;
>> +    }
>> +
>> +    if (!(tmp_buf = (unsigned char*)malloc(width)))
>> +    {
>> +        goto fail_or_end;
>> +    }
>> +
>> +    for (i = 0; i < height; ++i)
>> +    {
>> +        float *row_ptr = (float *)byte_ptr;
>> +
>> +        if (fread(tmp_buf, 1, width, file) != (size_t)width)
>> +        {
>> +            goto fail_or_end;
>> +        }
>> +
>> +        for (j = 0; j < width; ++j)
>> +        {
>> +            row_ptr[j] = tmp_buf[j];
>> +        }
>> +
>> +        byte_ptr += stride;
>> +    }
>> +
>> +    ret = 0;
>> +
>> +fail_or_end:
>> +    free(tmp_buf);
>> +    return ret;
>> +}
>> +/* Read y values of single frame for 10-bit input */
>> +int read_image_word(FILE *file, float *buf, int width, int height, int
>> stride)
>> +{
>> +    char *byte_ptr = (char *)buf;
>> +    unsigned short *tmp_buf = 0;
>> +    int i, j;
>> +    int ret = 1;
>> +
>> +    if (width <= 0 || height <= 0)
>> +    {
>> +        goto fail_or_end;
>> +    }
>> +
>> +    if (!(tmp_buf = (unsigned short*)malloc(width * 2))) // '*2' to
>> accommodate words
>> +    {
>> +        goto fail_or_end;
>> +    }
>> +
>> +    for (i = 0; i < height; ++i)
>> +    {
>> +        float *row_ptr = (float *)byte_ptr;
>> +
>> +        if (fread(tmp_buf, 2, width, file) != (size_t)width) // '2' for
>> word
>> +        {
>> +            goto fail_or_end;
>> +        }
>> +
>> +        for (j = 0; j < width; ++j)
>> +        {
>> +            row_ptr[j] = tmp_buf[j] / 4.0; // '/4' to convert from 10 to
>> 8-bit
>> +        }
>> +
>> +        byte_ptr += stride;
>> +    }
>> +
>> +    ret = 0;
>> +
>> +fail_or_end:
>> +    free(tmp_buf);
>> +    return ret;
>> +}
>> +
>> +int read_frame(float *reference_data, float *distorted_data, float
>> *temp_data, int stride_byte, void *s)
>> +{
>> +    x265_vmaf_data *user_data = (x265_vmaf_data *)s;
>> +    int ret;
>> +
>> +    // read reference y
>> +    if (user_data->internalBitDepth == 8)
>> +    {
>> +        ret = read_image_byte(user_data->reference_file,
>> reference_data, user_data->width, user_data->height, stride_byte);
>> +    }
>> +    else if (user_data->internalBitDepth == 10)
>> +    {
>> +        ret = read_image_word(user_data->reference_file,
>> reference_data, user_data->width, user_data->height, stride_byte);
>> +    }
>> +    else
>> +    {
>> +        x265_log(NULL, X265_LOG_ERROR, "Invalid bitdepth\n");
>> +        return 1;
>> +    }
>> +    if (ret)
>> +    {
>> +        if (feof(user_data->reference_file))
>> +        {
>> +            ret = 2; // OK if end of file
>> +        }
>> +        return ret;
>> +    }
>> +
>> +    // read distorted y
>> +    if (user_data->internalBitDepth == 8)
>> +    {
>> +        ret = read_image_byte(user_data->distorted_file,
>> distorted_data, user_data->width, user_data->height, stride_byte);
>> +    }
>> +    else if (user_data->internalBitDepth == 10)
>> +    {
>> +        ret = read_image_word(user_data->distorted_file,
>> distorted_data, user_data->width, user_data->height, stride_byte);
>> +    }
>> +    else
>> +    {
>> +        x265_log(NULL, X265_LOG_ERROR, "Invalid bitdepth\n");
>> +        return 1;
>> +    }
>> +    if (ret)
>> +    {
>> +        if (feof(user_data->distorted_file))
>> +        {
>> +            ret = 2; // OK if end of file
>> +        }
>> +        return ret;
>> +    }
>> +
>> +    // reference skip u and v
>> +    if (user_data->internalBitDepth == 8)
>> +    {
>> +        if (fread(temp_data, 1, user_data->offset,
>> user_data->reference_file) != (size_t)user_data->offset)
>> +        {
>> +            x265_log(NULL, X265_LOG_ERROR, "reference fread to skip u
>> and v failed.\n");
>> +            goto fail_or_end;
>> +        }
>> +    }
>> +    else if (user_data->internalBitDepth == 10)
>> +    {
>> +        if (fread(temp_data, 2, user_data->offset,
>> user_data->reference_file) != (size_t)user_data->offset)
>> +        {
>> +            x265_log(NULL, X265_LOG_ERROR, "reference fread to skip u
>> and v failed.\n");
>> +            goto fail_or_end;
>> +        }
>> +    }
>> +    else
>> +    {
>> +        x265_log(NULL, X265_LOG_ERROR, "Invalid format\n");
>> +        goto fail_or_end;
>> +    }
>> +
>> +    // distorted skip u and v
>> +    if (user_data->internalBitDepth == 8)
>> +    {
>> +        if (fread(temp_data, 1, user_data->offset,
>> user_data->distorted_file) != (size_t)user_data->offset)
>> +        {
>> +            x265_log(NULL, X265_LOG_ERROR, "distorted fread to skip u
>> and v failed.\n");
>> +            goto fail_or_end;
>> +        }
>> +    }
>> +    else if (user_data->internalBitDepth == 10)
>> +    {
>> +        if (fread(temp_data, 2, user_data->offset,
>> user_data->distorted_file) != (size_t)user_data->offset)
>> +        {
>> +            x265_log(NULL, X265_LOG_ERROR, "distorted fread to skip u
>> and v failed.\n");
>> +            goto fail_or_end;
>> +        }
>> +    }
>> +    else
>> +    {
>> +        x265_log(NULL, X265_LOG_ERROR, "Invalid format\n");
>> +        goto fail_or_end;
>> +    }
>> +
>> +
>> +fail_or_end:
>> +    return ret;
>> +}
>> +
>> +double x265_calculate_vmafscore(x265_param *param, x265_vmaf_data *data)
>> +{
>> +    double score;
>> +
>> +    data->width = param->sourceWidth;
>> +    data->height = param->sourceHeight;
>> +    data->internalBitDepth = param->internalBitDepth;
>> +
>> +    if (param->internalCsp == X265_CSP_I420)
>> +    {
>> +        if ((param->sourceWidth * param->sourceHeight) % 2 != 0)
>> +            x265_log(NULL, X265_LOG_ERROR, "Invalid file size\n");
>> +        data->offset = param->sourceWidth * param->sourceHeight / 2;
>> +    }
>> +    else if (param->internalCsp == X265_CSP_I422)
>> +        data->offset = param->sourceWidth * param->sourceHeight;
>> +    else if (param->internalCsp == X265_CSP_I444)
>> +        data->offset = param->sourceWidth * param->sourceHeight * 2;
>> +    else
>> +        x265_log(NULL, X265_LOG_ERROR, "Invalid format\n");
>> +
>> +    compute_vmaf(&score, vcd->format, data->width, data->height,
>> read_frame, data, vcd->model_path, vcd->log_path, vcd->log_fmt,
>> vcd->disable_clip, vcd->disable_avx, vcd->enable_transform,
>> vcd->phone_model, vcd->psnr, vcd->ssim, vcd->ms_ssim, vcd->pool);
>> +
>> +    return score;
>> +}
>> +
>> +int read_frame_10bit(float *reference_data, float *distorted_data, float
>> *temp_data, int stride, void *s)
>> +{
>> +    x265_vmaf_framedata *user_data = (x265_vmaf_framedata *)s;
>> +
>> +    PicYuv *reference_frame = (PicYuv *)user_data->reference_frame;
>> +    PicYuv *distorted_frame = (PicYuv *)user_data->distorted_frame;
>> +
>> +    if(!user_data->frame_set) {
>> +
>> +        int reference_stride = reference_frame->m_stride;
>> +        int distorted_stride = distorted_frame->m_stride;
>> +
>> +        const uint16_t *reference_ptr = (const uint16_t
>> *)reference_frame->m_picOrg[0];
>> +        const uint16_t *distorted_ptr = (const uint16_t
>> *)distorted_frame->m_picOrg[0];
>> +
>> +        temp_data = reference_data;
>> +
>> +        int height = user_data->height;
>> +        int width = user_data->width;
>> +
>> +        int i,j;
>> +        for (i = 0; i < height; i++) {
>> +            for ( j = 0; j < width; j++) {
>> +                temp_data[j] = ((float)reference_ptr[j] / 4.0);
>> +            }
>> +            reference_ptr += reference_stride;
>> +            temp_data += stride / sizeof(*temp_data);
>> +        }
>> +
>> +        temp_data = distorted_data;
>> +        for (i = 0; i < height; i++) {
>> +            for (j = 0; j < width; j++) {
>> +                 temp_data[j] = ((float)distorted_ptr[j] / 4.0);
>> +            }
>> +            distorted_ptr += distorted_stride;
>> +            temp_data += stride / sizeof(*temp_data);
>> +        }
>> +
>> +        user_data->frame_set = 1;
>> +        return 0;
>> +    }
>> +    return 2;
>> +}
>> +
>> +int read_frame_8bit(float *reference_data, float *distorted_data, float
>> *temp_data, int stride, void *s)
>> +{
>> +    x265_vmaf_framedata *user_data = (x265_vmaf_framedata *)s;
>> +
>> +    PicYuv *reference_frame = (PicYuv *)user_data->reference_frame;
>> +    PicYuv *distorted_frame = (PicYuv *)user_data->distorted_frame;
>> +
>> +    if(!user_data->frame_set) {
>> +
>> +        int reference_stride = reference_frame->m_stride;
>> +        int distorted_stride = distorted_frame->m_stride;
>> +
>> +        const uint8_t *reference_ptr = (const uint8_t
>> *)reference_frame->m_picOrg[0];
>> +        const uint8_t *distorted_ptr = (const uint8_t
>> *)distorted_frame->m_picOrg[0];
>> +
>> +        temp_data = reference_data;
>> +
>> +        int height = user_data->height;
>> +        int width = user_data->width;
>> +
>> +        int i,j;
>> +        for (i = 0; i < height; i++) {
>> +            for ( j = 0; j < width; j++) {
>> +                temp_data[j] = (float)reference_ptr[j];
>> +            }
>> +            reference_ptr += reference_stride;
>> +            temp_data += stride / sizeof(*temp_data);
>> +        }
>> +
>> +        temp_data = distorted_data;
>> +        for (i = 0; i < height; i++) {
>> +            for (j = 0; j < width; j++) {
>> +                 temp_data[j] = (float)distorted_ptr[j];
>> +            }
>> +            distorted_ptr += distorted_stride;
>> +            temp_data += stride / sizeof(*temp_data);
>> +        }
>> +
>> +        user_data->frame_set = 1;
>> +        return 0;
>> +    }
>> +    return 2;
>> +}
>> +
>> +double x265_calculate_vmaf_framelevelscore(x265_vmaf_framedata
>> *vmafframedata)
>> +{
>> +    double score;
>> +    int (*read_frame)(float *reference_data, float *distorted_data,
>> float *temp_data,
>> +                      int stride, void *s);
>> +    if (vmafframedata->internalBitDepth == 8)
>> +        read_frame = read_frame_8bit;
>> +    else
>> +        read_frame = read_frame_10bit;
>> +    compute_vmaf(&score, vcd->format, vmafframedata->width,
>> vmafframedata->height, read_frame, vmafframedata, vcd->model_path,
>> vcd->log_path, vcd->log_fmt, vcd->disable_clip, vcd->disable_avx,
>> vcd->enable_transform, vcd->phone_model, vcd->psnr, vcd->ssim,
>> vcd->ms_ssim, vcd->pool);
>> +
>> +    return score;
>> +}
>> +#endif
>>  } /* end namespace or extern "C" */
>> diff -r 04a337abd70d -r 27e3b161cd8b source/encoder/encoder.cpp
>> --- a/source/encoder/encoder.cpp        Thu Apr 12 15:10:59 2018 +0530
>> +++ b/source/encoder/encoder.cpp        Tue Feb 13 18:54:50 2018 +0530
>> @@ -2127,6 +2127,9 @@
>>  #define ELAPSED_MSEC(start, end) (((double)(end) - (start)) / 1000)
>>          if (m_param->csvLogLevel >= 2)
>>          {
>> +#if ENABLE_LIBVMAF
>> +            frameStats->vmafFrameScore = curFrame->m_fencPic->m_vmafSco
>> re;
>> +#endif
>>              frameStats->decideWaitTime = ELAPSED_MSEC(0,
>> curEncoder->m_slicetypeWaitTime);
>>              frameStats->row0WaitTime = 
>> ELAPSED_MSEC(curEncoder->m_startCompressTime,
>> curEncoder->m_row0WaitTime);
>>              frameStats->wallTime = ELAPSED_MSEC(curEncoder->m_row0WaitTime,
>> curEncoder->m_endCompressTime);
>> diff -r 04a337abd70d -r 27e3b161cd8b source/encoder/frameencoder.cpp
>> --- a/source/encoder/frameencoder.cpp   Thu Apr 12 15:10:59 2018 +0530
>> +++ b/source/encoder/frameencoder.cpp   Tue Feb 13 18:54:50 2018 +0530
>> @@ -864,6 +864,9 @@
>>                  m_frameFilter.processRow(i - m_filterRowDelay);
>>          }
>>      }
>> +#if ENABLE_LIBVMAF
>> +    vmafFrameLevelScore();
>> +#endif
>>
>>      if (m_param->maxSlices > 1)
>>      {
>> @@ -932,7 +935,7 @@
>>                  updateChecksum(reconPic->m_picOrg[1], m_checksum[1],
>> height, width, stride, 0, cuHeight);
>>                  updateChecksum(reconPic->m_picOrg[2], m_checksum[2],
>> height, width, stride, 0, cuHeight);
>>              }
>> -        }
>> +        }
>>      } // end of (m_param->maxSlices > 1)
>>
>>      if (m_param->rc.bStatWrite)
>> @@ -1189,7 +1192,7 @@
>>          m_cuStats.accumulate(m_tld[i].analysis.m_stats[m_jpId],
>> *m_param);
>>  #endif
>>
>> -    m_endFrameTime = x265_mdate();
>> +    m_endFrameTime = x265_mdate();
>>  }
>>
>>  void FrameEncoder::encodeSlice(uint32_t sliceAddr)
>> @@ -2058,11 +2061,36 @@
>>          m_nr->nrOffsetDenoise[cat][0] = 0;
>>      }
>>  }
>> +#if ENABLE_LIBVMAF
>> +void FrameEncoder::vmafFrameLevelScore()
>> +{
>> +    PicYuv *fenc = m_frame->m_fencPic;
>> +    PicYuv *recon = m_frame->m_reconPic;
>> +
>> +    x265_vmaf_framedata *vmafframedata = (x265_vmaf_framedata*)x265_mal
>> loc(sizeof(x265_vmaf_framedata));
>> +    if (!vmafframedata)
>> +    {
>> +        x265_log(NULL, X265_LOG_ERROR, "vmaf frame data alloc failed\n");
>> +    }
>> +
>> +    vmafframedata->height = fenc->m_picHeight;
>> +    vmafframedata->width = fenc->m_picWidth;
>> +    vmafframedata->frame_set = 0;
>> +    vmafframedata->internalBitDepth = m_param->internalBitDepth;
>> +    vmafframedata->reference_frame = fenc;
>> +    vmafframedata->distorted_frame = recon;
>> +
>> +    fenc->m_vmafScore = x265_calculate_vmaf_framelevel
>> score(vmafframedata);
>> +
>> +    if (vmafframedata)
>> +    x265_free(vmafframedata);
>> +}
>> +#endif
>>
>>  Frame *FrameEncoder::getEncodedPicture(NALList& output)
>>  {
>>      if (m_frame)
>> -    {
>> +    {
>>          /* block here until worker thread completes */
>>          m_done.wait();
>>
>> diff -r 04a337abd70d -r 27e3b161cd8b source/encoder/frameencoder.h
>> --- a/source/encoder/frameencoder.h     Thu Apr 12 15:10:59 2018 +0530
>> +++ b/source/encoder/frameencoder.h     Tue Feb 13 18:54:50 2018 +0530
>> @@ -240,6 +240,9 @@
>>      void enqueueRowFilter(int row)  { WaveFront::enqueueRow(row * 2 +
>> 1); }
>>      void enableRowEncoder(int row)  { WaveFront::enableRow(row * 2 + 0);
>> }
>>      void enableRowFilter(int row)   { WaveFront::enableRow(row * 2 + 1);
>> }
>> +#if ENABLE_LIBVMAF
>> +    void vmafFrameLevelScore();
>> +#endif
>>  };
>>  }
>>
>> diff -r 04a337abd70d -r 27e3b161cd8b source/x265.cpp
>> --- a/source/x265.cpp   Thu Apr 12 15:10:59 2018 +0530
>> +++ b/source/x265.cpp   Tue Feb 13 18:54:50 2018 +0530
>> @@ -75,6 +75,7 @@
>>      const char* reconPlayCmd;
>>      const x265_api* api;
>>      x265_param* param;
>> +    x265_vmaf_data* vmafData;
>>      bool bProgress;
>>      bool bForceY4m;
>>      bool bDither;
>> @@ -96,6 +97,7 @@
>>          reconPlayCmd = NULL;
>>          api = NULL;
>>          param = NULL;
>> +        vmafData = NULL;
>>          framesToBeEncoded = seek = 0;
>>          totalbytes = 0;
>>          bProgress = true;
>> @@ -216,6 +218,14 @@
>>          x265_log(NULL, X265_LOG_ERROR, "param alloc failed\n");
>>          return true;
>>      }
>> +#if ENABLE_LIBVMAF
>> +    vmafData = (x265_vmaf_data*)x265_malloc(sizeof(x265_vmaf_data));
>> +    if(!vmafData)
>> +    {
>> +        x265_log(NULL, X265_LOG_ERROR, "vmaf data alloc failed\n");
>> +        return true;
>> +    }
>> +#endif
>>
>>      if (api->param_default_preset(param, preset, tune) < 0)
>>      {
>> @@ -363,6 +373,7 @@
>>      info.frameCount = 0;
>>      getParamAspectRatio(param, info.sarWidth, info.sarHeight);
>>
>> +
>>      this->input = InputFile::open(info, this->bForceY4m);
>>      if (!this->input || this->input->isFail())
>>      {
>> @@ -439,7 +450,30 @@
>>                      param->sourceWidth, param->sourceHeight,
>> param->fpsNum, param->fpsDenom,
>>                      x265_source_csp_names[param->internalCsp]);
>>      }
>> +#if ENABLE_LIBVMAF
>> +    if (!reconfn)
>> +    {
>> +        x265_log(param, X265_LOG_ERROR, "recon file must be specified to
>> get VMAF score, try --help for help\n");
>> +        return true;
>> +    }
>> +    const char *str = strrchr(info.filename, '.');
>>
>> +    if (!strcmp(str, ".y4m"))
>> +    {
>> +        x265_log(param, X265_LOG_ERROR, "VMAF supports YUV file format
>> only.\n");
>> +        return true;
>> +    }
>> +    if(param->internalCsp == X265_CSP_I420 || param->internalCsp ==
>> X265_CSP_I422 || param->internalCsp == X265_CSP_I444)
>> +    {
>> +        vmafData->reference_file = x265_fopen(inputfn, "rb");
>> +        vmafData->distorted_file = x265_fopen(reconfn, "rb");
>> +    }
>> +    else
>> +    {
>> +        x265_log(param, X265_LOG_ERROR, "VMAF will support only yuv420p,
>> yu422p, yu444p, yuv420p10le, yuv422p10le, yuv444p10le formats.\n");
>> +        return true;
>> +    }
>> +#endif
>>      this->output = OutputFile::open(outputfn, info);
>>      if (this->output->isFail())
>>      {
>> @@ -555,7 +589,9 @@
>>
>>      x265_param* param = cliopt.param;
>>      const x265_api* api = cliopt.api;
>> -
>> +#if ENABLE_LIBVMAF
>> +    x265_vmaf_data* vmafdata = cliopt.vmafData;
>> +#endif
>>      /* This allows muxers to modify bitstream format */
>>      cliopt.output->setParam(param);
>>
>> @@ -712,7 +748,7 @@
>>          if (!numEncoded)
>>              break;
>>      }
>> -
>> +
>>      /* clear progress report */
>>      if (cliopt.bProgress)
>>          fprintf(stderr, "%*s\r", 80, " ");
>> @@ -723,7 +759,11 @@
>>
>>      api->encoder_get_stats(encoder, &stats, sizeof(stats));
>>      if (param->csvfn && !b_ctrl_c)
>> +#if ENABLE_LIBVMAF
>> +        api->vmaf_encoder_log(encoder, argc, argv, param, vmafdata);
>> +#else
>>          api->encoder_log(encoder, argc, argv);
>> +#endif
>>      api->encoder_close(encoder);
>>
>>      int64_t second_largest_pts = 0;
>> diff -r 04a337abd70d -r 27e3b161cd8b source/x265.h
>> --- a/source/x265.h     Thu Apr 12 15:10:59 2018 +0530
>> +++ b/source/x265.h     Tue Feb 13 18:54:50 2018 +0530
>> @@ -209,6 +209,7 @@
>>      x265_cu_stats    cuStats;
>>      x265_pu_stats    puStats;
>>      double           totalFrameTime;
>> +    double           vmafFrameScore;
>>  } x265_frame_stats;
>>
>>  typedef struct x265_ctu_info_t
>> @@ -536,6 +537,7 @@
>>      double                elapsedEncodeTime;    /* wall time since
>> encoder was opened */
>>      double                elapsedVideoTime;     /* encoded picture count
>> / frame rate */
>>      double                bitrate;              /* accBits / elapsed
>> video time */
>> +    double                aggregateVmafScore;   /* aggregate VMAF score
>> for input video*/
>>      uint64_t              accBits;              /* total bits output
>> thus far */
>>      uint32_t              encodedPictureCount;  /* number of output
>> pictures thus far */
>>      uint32_t              totalWPFrames;        /* number of
>> uni-directional weighted frames used */
>> @@ -572,6 +574,47 @@
>>      float bitrateFactor;
>>  } x265_zone;
>>
>> +/* data to calculate aggregate VMAF score */
>> +typedef struct x265_vmaf_data
>> +{
>> +    int width;
>> +    int height;
>> +    size_t offset;
>> +    int internalBitDepth;
>> +    FILE *reference_file; /* FILE pointer for input file */
>> +    FILE *distorted_file; /* FILE pointer for recon file generated*/
>> +}x265_vmaf_data;
>> +
>> +/* data to calculate frame level VMAF score */
>> +typedef struct x265_vmaf_framedata
>> +{
>> +    int width;
>> +    int height;
>> +    int frame_set;
>> +    int internalBitDepth;
>> +    void *reference_frame; /* points to fenc of particular frame */
>> +    void *distorted_frame; /* points to recon of particular frame */
>> +}x265_vmaf_framedata;
>> +
>> +/* common data needed to calculate both frame level and video level VMAF
>> scores */
>> +typedef struct x265_vmaf_commondata
>> +{
>> +    char *format;
>> +    char *model_path;
>> +    char *log_path;
>> +    char *log_fmt;
>> +    int disable_clip;
>> +    int disable_avx;
>> +    int enable_transform;
>> +    int phone_model;
>> +    int psnr;
>> +    int ssim;
>> +    int ms_ssim;
>> +    char *pool;
>> +}x265_vmaf_commondata;
>> +
>> +static const x265_vmaf_commondata vcd[] = {NULL, (char
>> *)"/usr/local/share/model/vmaf_v0.6.1.pkl", NULL, NULL, 0, 0, 0, 0, 0,
>> 0, 0, NULL};
>> +
>>  /* x265 input parameters
>>   *
>>   * For version safety you may use x265_param_alloc/free() to manage the
>> @@ -1811,6 +1854,22 @@
>>  /* In-place downshift from a bit-depth greater than 8 to a bit-depth of
>> 8, using
>>   * the residual bits to dither each row. */
>>  void x265_dither_image(x265_picture *, int picWidth, int picHeight,
>> int16_t *errorBuf, int bitDepth);
>> +#if ENABLE_LIBVMAF
>> +/* x265_calculate_vmafScore:
>> + *    returns VMAF score for the input video.
>> + *    This api must be called only after encoding was done. */
>> +double x265_calculate_vmafscore(x265_param*, x265_vmaf_data*);
>> +
>> +/* x265_calculate_vmaf_framelevelscore:
>> + *    returns VMAF score for each frame in a given input video. */
>> +double x265_calculate_vmaf_framelevelscore(x265_vmaf_framedata*);
>> +/* x265_vmaf_encoder_log:
>> + *       write a line to the configured CSV file.  If a CSV filename was
>> not
>> + *       configured, or file open failed, this function will perform no
>> write.
>> + *       This api will be called only when ENABLE_LIBVMAF cmake option
>> is set */
>> +void x265_vmaf_encoder_log(x265_encoder *encoder, int argc, char
>> **argv, x265_param*, x265_vmaf_data*);
>> +
>> +#endif
>>
>>  #define X265_MAJOR_VERSION 1
>>
>> @@ -1864,6 +1923,11 @@
>>      void          (*csvlog_encode)(const x265_param*, const x265_stats
>> *, int, int, int, char**);
>>      void          (*dither_image)(x265_picture*, int, int, int16_t*,
>> int);
>>      int           (*set_analysis_data)(x265_encoder *encoder,
>> x265_analysis_data *analysis_data, int poc, uint32_t cuBytes);
>> +#if ENABLE_LIBVMAF
>> +    double        (*calculate_vmafscore)(x265_param *, x265_vmaf_data
>> *);
>> +    double        (*calculate_vmaf_framelevelscore)(x265_vmaf_framedata
>> *);
>> +    void          (*vmaf_encoder_log)(x265_encoder*, int, char**,
>> x265_param *, x265_vmaf_data *);
>> +#endif
>>      /* add new pointers to the end, or increment X265_MAJOR_VERSION */
>>  } x265_api;
>>
>>
>> _______________________________________________
>> x265-devel mailing list
>> x265-devel@videolan.org
>> https://mailman.videolan.org/listinfo/x265-devel
>>
>>
> Thanks. Pushed to default.
>
> _______________________________________________
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> x265-devel@videolan.org
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>
>


-- 
Deepthi
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