linux-kernel - Re: [PATCH 2/5] docs: uapi: media: Move NV12_10BE

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Message-ID: <fa3fd17d-570b-fd5f-1c35-3e4004333383@collabora.com>
Date:   Mon, 7 Aug 2023 13:28:05 +0200
From:   Andrzej Pietrasiewicz <andrzej.p@...labora.com>
To:     Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     kernel@...labora.com, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] docs: uapi: media: Move NV12_10BE_8L128 to NV15
 section

W dniu 4.08.2023 o 21:27, Nicolas Dufresne pisze:
> This is a 15 bits per pixel (or packed 10 bit format), so move it
> into the relevant section.
> 
> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>

Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@...labora.com>

> ---
>   .../media/v4l/pixfmt-yuv-planar.rst           | 36 ++++++++++---------
>   1 file changed, 19 insertions(+), 17 deletions(-)
> 
> diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
> index fb826923ff1d..1d43532095c0 100644
> --- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
> +++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
> @@ -295,8 +295,6 @@ of the luma plane.
>   .. _V4L2-PIX-FMT-NV12-32L32:
>   .. _V4L2-PIX-FMT-NV12M-8L128:
>   .. _V4L2-PIX-FMT-NV12-8L128:
> -.. _V4L2-PIX-FMT-NV12M-10BE-8L128:
> -.. _V4L2-PIX-FMT-NV12-10BE-8L128:
>   .. _V4L2-PIX-FMT-MM21:
>   
>   Tiled NV12
> @@ -361,6 +359,25 @@ The layouts of the luma and chroma planes are identical.
>   ``V4L2_PIX_FMT_NV12_8L128`` is similar to ``V4L2_PIX_FMT_NV12M_8L128`` but stores
>   two planes in one memory.
>   
> +``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels
> +in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the
> +image height must be aligned to a multiple of 32. The number of luma and chroma
> +tiles are identical, even though the tile size differ. The image is formed of
> +two non-contiguous planes.
> +
> +
> +.. _V4L2-PIX-FMT-NV15-4L4:
> +.. _V4L2-PIX-FMT-NV12M-10BE-8L128:
> +.. _V4L2-PIX-FMT-NV12-10BE-8L128:
> +
> +Tiled NV15
> +----------
> +
> +``V4L2_PIX_FMT_NV15_4L4`` Semi-planar 10-bit YUV 4:2:0 formats, using 4x4 tiling.
> +All components are packed without any padding between each other.
> +As a side-effect, each group of 4 components are stored over 5 bytes
> +(YYYY or UVUV = 4 * 10 bits = 40 bits = 5 bytes).
> +
>   ``V4L2_PIX_FMT_NV12M_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
>   10 bits pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
>   the data is arranged in big endian order.
> @@ -379,21 +396,6 @@ byte 4: Y3(bits 7-0)
>   ``V4L2_PIX_FMT_NV12_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M_10BE_8L128`` but stores
>   two planes in one memory.
>   
> -``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels
> -in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the
> -image height must be aligned to a multiple of 32. The number of luma and chroma
> -tiles are identical, even though the tile size differ. The image is formed of
> -two non-contiguous planes.
> -
> -.. _V4L2-PIX-FMT-NV15-4L4:
> -
> -Tiled NV15
> -----------
> -
> -Semi-planar 10-bit YUV 4:2:0 formats, using 4x4 tiling.
> -All components are packed without any padding between each other.
> -As a side-effect, each group of 4 components are stored over 5 bytes
> -(YYYY or UVUV = 4 * 10 bits = 40 bits = 5 bytes).
>   
>   .. _V4L2-PIX-FMT-NV16:
>   .. _V4L2-PIX-FMT-NV61: