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media: Add NV12_4L4 tiled format

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This format is produced by VeriSilicon Hantro G2 and VC8000D cores.
It is a simple 4x4 tiling layout in a linear way.

The pixel format was introduced by GStreamer using FourCC VT12,
so let's stick to it.

Link: https://gstreamer.freedesktop.org/documentation/video/video-format.html

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Ezequiel Garcia
2021-08-05 04:47:51 +02:00
committed by Mauro Carvalho Chehab
parent 78eee7b5f1
commit 683f71ebb3
4 changed files with 11 additions and 0 deletions
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6
Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
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@@ -254,6 +254,7 @@ of the luma plane.
.. _V4L2-PIX-FMT-NV12MT:
.. _V4L2-PIX-FMT-NV12MT-16X16:
.. _V4L2-PIX-FMT-NV12-4L4:
.. _V4L2-PIX-FMT-NV12-16L16:
.. _V4L2-PIX-FMT-NV12-32L32:
@@ -279,6 +280,11 @@ If the vertical resolution is an odd number of macroblocks, the last row of
macroblocks is stored in linear order. The layouts of the luma and chroma
planes are identical.
``V4L2_PIX_FMT_NV12_4L4`` stores pixel in 4x4 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 4. The layouts of the luma and chroma planes are
identical.
``V4L2_PIX_FMT_NV12_16L16`` stores pixel in 16x16 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 16. The layouts of the luma and chroma planes are