media: docs: move uAPI book to userspace-api/media

Since 2017, there is an space reserved for userspace API,
created by changeset 1d596dee38 ("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>
This commit is contained in:
Mauro Carvalho Chehab
2020-03-04 10:21:39 +01:00
parent 5dfb8db56b
commit 54f38fcae5
464 changed files with 464 additions and 462 deletions
+2 -2
View File
@@ -290,12 +290,12 @@ the FB_CAP_FOURCC bit in the fb_fix_screeninfo capabilities field.
FOURCC definitions are located in the linux/videodev2.h header. However, and
despite starting with the V4L2_PIX_FMT_prefix, they are not restricted to V4L2
and don't require usage of the V4L2 subsystem. FOURCC documentation is
available in Documentation/media/uapi/v4l/pixfmt.rst.
available in Documentation/userspace-api/media/v4l/pixfmt.rst.
To select a format, applications set the grayscale field to the desired FOURCC.
For YUV formats, they should also select the appropriate colorspace by setting
the colorspace field to one of the colorspaces listed in linux/videodev2.h and
documented in Documentation/media/uapi/v4l/colorspaces.rst.
documented in Documentation/userspace-api/media/v4l/colorspaces.rst.
The red, green, blue and transp fields are not used with the FOURCC-based API.
For forward compatibility reasons applications must zero those fields, and