[FFmpeg-devel] [PATCH 4/7] Adds gray floating-point pixel formats.

[Michael Niedermayer]

On Tue, Aug 07, 2018 at 12:17:58AM +0300, Sergey Lavrushkin wrote:
> I split patch to one for libavutil and another for libswscale,
> also added LUT for unscaled conversion, added
> conversions for scaling and updated fate tests.

>  libavutil/pixdesc.c              |   22 ++++++++++++++++++++++
>  libavutil/pixfmt.h               |    5 +++++
>  libavutil/version.h              |    2 +-
>  tests/ref/fate/sws-pixdesc-query |    3 +++
>  4 files changed, 31 insertions(+), 1 deletion(-)
> b58f328f5d90954c62957f127b1acbfad5795a4d  0004-libavutil-Adds-gray-floating-point-pixel-formats.patch
> From 8bcc10b49c41612b4d6549e64d90acf3f0b3fc6a Mon Sep 17 00:00:00 2001
> From: Sergey Lavrushkin <dualfal at gmail.com>
> Date: Fri, 3 Aug 2018 18:02:49 +0300
> Subject: [PATCH 4/9] libavutil: Adds gray floating-point pixel formats.
> 
> ---
>  libavutil/pixdesc.c              | 22 ++++++++++++++++++++++
>  libavutil/pixfmt.h               |  5 +++++
>  libavutil/version.h              |  2 +-
>  tests/ref/fate/sws-pixdesc-query |  3 +++
>  4 files changed, 31 insertions(+), 1 deletion(-)
> 
> diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
> index 96e079584a..970a83214c 100644
> --- a/libavutil/pixdesc.c
> +++ b/libavutil/pixdesc.c
> @@ -2206,6 +2206,28 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
>          .name  = "opencl",
>          .flags = AV_PIX_FMT_FLAG_HWACCEL,
>      },
> +    [AV_PIX_FMT_GRAYF32BE] = {
> +        .name = "grayf32be",
> +        .nb_components = 1,
> +        .log2_chroma_w = 0,
> +        .log2_chroma_h = 0,
> +        .comp = {
> +            { 0, 4, 0, 0, 32, 3, 31, 1 },       /* Y */
> +        },
> +        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_FLOAT,
> +        .alias = "yf32be",
> +    },
> +    [AV_PIX_FMT_GRAYF32LE] = {
> +        .name = "grayf32le",
> +        .nb_components = 1,
> +        .log2_chroma_w = 0,
> +        .log2_chroma_h = 0,
> +        .comp = {
> +            { 0, 4, 0, 0, 32, 3, 31, 1 },       /* Y */
> +        },
> +        .flags = AV_PIX_FMT_FLAG_FLOAT,
> +        .alias = "yf32le",
> +    },
>  };
>  #if FF_API_PLUS1_MINUS1
>  FF_ENABLE_DEPRECATION_WARNINGS
> diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
> index 2b3307845e..7b254732d8 100644
> --- a/libavutil/pixfmt.h
> +++ b/libavutil/pixfmt.h
> @@ -337,6 +337,9 @@ enum AVPixelFormat {
>      AV_PIX_FMT_GRAY14BE,   ///<        Y        , 14bpp, big-endian
>      AV_PIX_FMT_GRAY14LE,   ///<        Y        , 14bpp, little-endian
>  
> +    AV_PIX_FMT_GRAYF32BE,  ///< IEEE-754 single precision Y, 32bpp, big-endian
> +    AV_PIX_FMT_GRAYF32LE,  ///< IEEE-754 single precision Y, 32bpp, little-endian
> +
>      AV_PIX_FMT_NB         ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
>  };
>  
> @@ -405,6 +408,8 @@ enum AVPixelFormat {
>  #define AV_PIX_FMT_GBRPF32    AV_PIX_FMT_NE(GBRPF32BE,  GBRPF32LE)
>  #define AV_PIX_FMT_GBRAPF32   AV_PIX_FMT_NE(GBRAPF32BE, GBRAPF32LE)
>  
> +#define AV_PIX_FMT_GRAYF32 AV_PIX_FMT_NE(GRAYF32BE, GRAYF32LE)
> +
>  #define AV_PIX_FMT_YUVA420P9  AV_PIX_FMT_NE(YUVA420P9BE , YUVA420P9LE)
>  #define AV_PIX_FMT_YUVA422P9  AV_PIX_FMT_NE(YUVA422P9BE , YUVA422P9LE)
>  #define AV_PIX_FMT_YUVA444P9  AV_PIX_FMT_NE(YUVA444P9BE , YUVA444P9LE)
> diff --git a/libavutil/version.h b/libavutil/version.h
> index 44bdebdc93..5205c5bc60 100644
> --- a/libavutil/version.h
> +++ b/libavutil/version.h

> @@ -79,7 +79,7 @@
>   */
>  
>  #define LIBAVUTIL_VERSION_MAJOR  56
> -#define LIBAVUTIL_VERSION_MINOR  18
> +#define LIBAVUTIL_VERSION_MINOR  19
>  #define LIBAVUTIL_VERSION_MICRO 102

a bump to minor must reset micro to 100

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

In a rich man's house there is no place to spit but his face.
-- Diogenes of Sinope
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