fea13a6935
There are lots of tables that are not properly displayed in LaTeX/PDF. Fix the tablecolumns, add longtable where needed and LaTeX formatting macros, in order to address such issues. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
124 lines
3.8 KiB
ReStructuredText
124 lines
3.8 KiB
ReStructuredText
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
|
|
|
|
******************************
|
|
Multi-planar format structures
|
|
******************************
|
|
|
|
The struct :c:type:`v4l2_plane_pix_format` structures define size
|
|
and layout for each of the planes in a multi-planar format. The
|
|
struct :c:type:`v4l2_pix_format_mplane` structure contains
|
|
information common to all planes (such as image width and height) and an
|
|
array of struct :c:type:`v4l2_plane_pix_format` structures,
|
|
describing all planes of that format.
|
|
|
|
|
|
|
|
.. tabularcolumns:: |p{1.4cm}|p{4.0cm}|p{11.9cm}|
|
|
|
|
.. c:type:: v4l2_plane_pix_format
|
|
|
|
.. flat-table:: struct v4l2_plane_pix_format
|
|
:header-rows: 0
|
|
:stub-columns: 0
|
|
:widths: 1 1 2
|
|
|
|
* - __u32
|
|
- ``sizeimage``
|
|
- Maximum size in bytes required for image data in this plane,
|
|
set by the driver. When the image consists of variable length
|
|
compressed data this is the number of bytes required by the
|
|
codec to support the worst-case compression scenario.
|
|
|
|
The driver will set the value for uncompressed images.
|
|
|
|
Clients are allowed to set the sizeimage field for variable length
|
|
compressed data flagged with ``V4L2_FMT_FLAG_COMPRESSED`` at
|
|
:ref:`VIDIOC_ENUM_FMT`, but the driver may ignore it and set the
|
|
value itself, or it may modify the provided value based on
|
|
alignment requirements or minimum/maximum size requirements.
|
|
If the client wants to leave this to the driver, then it should
|
|
set sizeimage to 0.
|
|
* - __u32
|
|
- ``bytesperline``
|
|
- Distance in bytes between the leftmost pixels in two adjacent
|
|
lines. See struct :c:type:`v4l2_pix_format`.
|
|
* - __u16
|
|
- ``reserved[6]``
|
|
- Reserved for future extensions. Should be zeroed by drivers and
|
|
applications.
|
|
|
|
|
|
.. raw:: latex
|
|
|
|
\small
|
|
|
|
.. tabularcolumns:: |p{4.4cm}|p{5.6cm}|p{7.3cm}|
|
|
|
|
.. c:type:: v4l2_pix_format_mplane
|
|
|
|
.. flat-table:: struct v4l2_pix_format_mplane
|
|
:header-rows: 0
|
|
:stub-columns: 0
|
|
:widths: 1 1 2
|
|
|
|
* - __u32
|
|
- ``width``
|
|
- Image width in pixels. See struct
|
|
:c:type:`v4l2_pix_format`.
|
|
* - __u32
|
|
- ``height``
|
|
- Image height in pixels. See struct
|
|
:c:type:`v4l2_pix_format`.
|
|
* - __u32
|
|
- ``pixelformat``
|
|
- The pixel format. Both single- and multi-planar four character
|
|
codes can be used.
|
|
* - __u32
|
|
- ``field``
|
|
- Field order, from enum :c:type:`v4l2_field`.
|
|
See struct :c:type:`v4l2_pix_format`.
|
|
* - __u32
|
|
- ``colorspace``
|
|
- Colorspace encoding, from enum :c:type:`v4l2_colorspace`.
|
|
See struct :c:type:`v4l2_pix_format`.
|
|
* - struct :c:type:`v4l2_plane_pix_format`
|
|
- ``plane_fmt[VIDEO_MAX_PLANES]``
|
|
- An array of structures describing format of each plane this pixel
|
|
format consists of. The number of valid entries in this array has
|
|
to be put in the ``num_planes`` field.
|
|
* - __u8
|
|
- ``num_planes``
|
|
- Number of planes (i.e. separate memory buffers) for this format
|
|
and the number of valid entries in the ``plane_fmt`` array.
|
|
* - __u8
|
|
- ``flags``
|
|
- Flags set by the application or driver, see :ref:`format-flags`.
|
|
* - union {
|
|
- (anonymous)
|
|
* - __u8
|
|
- ``ycbcr_enc``
|
|
- Y'CbCr encoding, from enum :c:type:`v4l2_ycbcr_encoding`.
|
|
See struct :c:type:`v4l2_pix_format`.
|
|
* - __u8
|
|
- ``hsv_enc``
|
|
- HSV encoding, from enum :c:type:`v4l2_hsv_encoding`.
|
|
See struct :c:type:`v4l2_pix_format`.
|
|
* - }
|
|
-
|
|
* - __u8
|
|
- ``quantization``
|
|
- Quantization range, from enum :c:type:`v4l2_quantization`.
|
|
See struct :c:type:`v4l2_pix_format`.
|
|
* - __u8
|
|
- ``xfer_func``
|
|
- Transfer function, from enum :c:type:`v4l2_xfer_func`.
|
|
See struct :c:type:`v4l2_pix_format`.
|
|
* - __u8
|
|
- ``reserved[7]``
|
|
- Reserved for future extensions. Should be zeroed by drivers and
|
|
applications.
|
|
|
|
.. raw:: latex
|
|
|
|
\normalsize
|