Mauro Carvalho Chehab 54f38fcae5 media: docs: move uAPI book to userspace-api/media
Since 2017, there is an space reserved for userspace API,
created by changeset 1d596dee3862 ("docs: Create a user-space API guide").

As the media subsystem was one of the first subsystems to use
Sphinx, until this patch, we were keeping things on a separate
place.

Let's just use the new location, as having all uAPI altogether
will likely make things easier for developers.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14 10:31:49 +02:00

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.. Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/userspace-api/media/fdl-appendix.rst.
..
.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
.. _V4L2-PIX-FMT-SRGGB16:
.. _v4l2-pix-fmt-sbggr16:
.. _v4l2-pix-fmt-sgbrg16:
.. _v4l2-pix-fmt-sgrbg16:
***************************************************************************************************************************
V4L2_PIX_FMT_SRGGB16 ('RG16'), V4L2_PIX_FMT_SGRBG16 ('GR16'), V4L2_PIX_FMT_SGBRG16 ('GB16'), V4L2_PIX_FMT_SBGGR16 ('BYR2'),
***************************************************************************************************************************
16-bit Bayer formats
Description
===========
These four pixel formats are raw sRGB / Bayer formats with 16 bits per
sample. Each sample is stored in a 16-bit word. Each n-pixel row contains
n/2 green samples and n/2 blue or red samples, with alternating red and blue
rows. Bytes are stored in memory in little endian order. They are
conventionally described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is
an example of a small V4L2_PIX_FMT_SBGGR16 image:
**Byte Order.**
Each cell is one byte.
.. flat-table::
:header-rows: 0
:stub-columns: 0
* - start + 0:
- B\ :sub:`00low`
- B\ :sub:`00high`
- G\ :sub:`01low`
- G\ :sub:`01high`
- B\ :sub:`02low`
- B\ :sub:`02high`
- G\ :sub:`03low`
- G\ :sub:`03high`
* - start + 8:
- G\ :sub:`10low`
- G\ :sub:`10high`
- R\ :sub:`11low`
- R\ :sub:`11high`
- G\ :sub:`12low`
- G\ :sub:`12high`
- R\ :sub:`13low`
- R\ :sub:`13high`
* - start + 16:
- B\ :sub:`20low`
- B\ :sub:`20high`
- G\ :sub:`21low`
- G\ :sub:`21high`
- B\ :sub:`22low`
- B\ :sub:`22high`
- G\ :sub:`23low`
- G\ :sub:`23high`
* - start + 24:
- G\ :sub:`30low`
- G\ :sub:`30high`
- R\ :sub:`31low`
- R\ :sub:`31high`
- G\ :sub:`32low`
- G\ :sub:`32high`
- R\ :sub:`33low`
- R\ :sub:`33high`