Files
linux/Documentation/userspace-api/media/v4l/fourcc.rst
Mauro Carvalho Chehab ce062cdc2e docs: media: add missing c namespace to V4L headers
Media references belong to V4L namespace. Fix a lot of broken
links when including videodev2.h and probably fixing several
other broken cross-references between different files inside
media docs.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <b69fc5bd43da7d326b9f4720df59388088c64065.1759329363.git.mchehab+huawei@kernel.org>
2025-10-17 13:56:59 -06:00

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.. SPDX-License-Identifier: GPL-2.0
.. c:namespace:: V4L
Guidelines for Video4Linux pixel format 4CCs
============================================
Guidelines for Video4Linux 4CC codes defined using v4l2_fourcc() are
specified in this document. First of the characters defines the nature of
the pixel format, compression and colour space. The interpretation of the
other three characters depends on the first one.
Existing 4CCs may not obey these guidelines.
Raw bayer
---------
The following first characters are used by raw bayer formats:
- B: raw bayer, uncompressed
- b: raw bayer, DPCM compressed
- a: A-law compressed
- u: u-law compressed
2nd character: pixel order
- B: BGGR
- G: GBRG
- g: GRBG
- R: RGGB
3rd character: uncompressed bits-per-pixel 0--9, A--
4th character: compressed bits-per-pixel 0--9, A--