[x265] [PATCH x265] Min value and max value issue of luma.

[Ashok Kumar Mishra]

On Thu, Jun 28, 2018 at 11:55 AM, Chunli Zhang <chunli at multicorewareinc.com>
wrote:

> # HG changeset patch
> # User Chunli Zhang
> # Date 1528964852 -28800
> #      Thu Jun 14 16:27:32 2018 +0800
> # Node ID 8b8334561e990554226ac439e03cf4b8ab3c6008
> # Parent  a8a5ccf5aaf7e04e439a216e5c396991c6b76999
> Support luma values automatically changed by the commandline parameter
> "--min-luma" and "--max-luma".
>
> diff -r a8a5ccf5aaf7 -r 8b8334561e99 source/common/param.cpp
> --- a/source/common/param.cpp Wed Jun 13 09:54:27 2018 +0530
> +++ b/source/common/param.cpp Thu Jun 14 16:27:32 2018 +0800
> @@ -1405,6 +1405,8 @@
>          "Invalid refine-intra value, refine-intra levels 0 to 3
> supported");
>      CHECK(param->maxAUSizeFactor < 0.5 || param->maxAUSizeFactor > 1.0,
>          "Supported factor for controlling max AU size is from 0.5 to 1");
> +    CHECK(param->minLuma < 0 || param->maxLuma > PIXEL_MAX,
> +        "Supported minLuma or maxLuma is from 0 to ((1 << X265_DEPTH) -
> 1)");
>  #if !X86_64
>      CHECK(param->searchMethod == X265_SEA && (param->sourceWidth > 840 ||
> param->sourceHeight > 480),
>          "SEA motion search does not support resolutions greater than 480p
> in 32 bit build");
> diff -r a8a5ccf5aaf7 -r 8b8334561e99 source/common/picyuv.cpp
> --- a/source/common/picyuv.cpp Wed Jun 13 09:54:27 2018 +0530
> +++ b/source/common/picyuv.cpp Thu Jun 14 16:27:32 2018 +0800
> @@ -358,6 +358,19 @@
>      pixel *uPic = m_picOrg[1];
>      pixel *vPic = m_picOrg[2];
>
> +    if(param.minLuma != 0 || param.maxLuma != PIXEL_MAX)
> +    {
> +        for (int r = 0; r < height; r++)
> +        {
> +            for (int c = 0; c < width; c++)
> +            {
> +                yPic[c] = X265_MIN(yPic[c], (pixel)param.maxLuma);
> +                yPic[c] = X265_MAX(yPic[c], (pixel)param.minLuma);
> +            }
> +            yPic += m_stride;
> +        }
> +    }
> +    yPic = m_picOrg[0];
>      if (param.csvLogLevel >= 2 || param.maxCLL || param.maxFALL)
>      {
>          for (int r = 0; r < height; r++)
>
>
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>
>
Pushed.
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