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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. _V4L2-PIX-FMT-YUV444M:
.. _v4l2-pix-fmt-yvu444m:
************************************************************
V4L2_PIX_FMT_YUV444M ('YM24'), V4L2_PIX_FMT_YVU444M ('YM42')
************************************************************
V4L2_PIX_FMT_YVU444M
Planar formats with full horizontal resolution, also known as YUV and
YVU 4:4:4
Description
===========
This is a multi-planar format, as opposed to a packed format. The three
components are separated into three sub-images or planes.
The Y plane is first. The Y plane has one byte per pixel. For
``V4L2_PIX_FMT_YUV444M`` the Cb data constitutes the second plane which
is the same width and height as the Y plane (and as the image). The Cr
data, just like the Cb plane, is in the third plane.
``V4L2_PIX_FMT_YVU444M`` is the same except the Cr data is stored in the
second plane and the Cb data in the third plane.
If the Y plane has pad bytes after each row, then the Cb and Cr planes
have the same number of pad bytes after their rows.
``V4L2_PIX_FMT_YUV444M`` and ``V4L2_PIX_FMT_YUV444M`` are intended to be
used only in drivers and applications that support the multi-planar API,
described in :ref:`planar-apis`.
**Byte Order.**
Each cell is one byte.
.. flat-table::
:header-rows: 0
:stub-columns: 0
* - start0 + 0:
- Y'\ :sub:`00`
- Y'\ :sub:`01`
- Y'\ :sub:`02`
- Y'\ :sub:`03`
* - start0 + 4:
- Y'\ :sub:`10`
- Y'\ :sub:`11`
- Y'\ :sub:`12`
- Y'\ :sub:`13`
* - start0 + 8:
- Y'\ :sub:`20`
- Y'\ :sub:`21`
- Y'\ :sub:`22`
- Y'\ :sub:`23`
* - start0 + 12:
- Y'\ :sub:`30`
- Y'\ :sub:`31`
- Y'\ :sub:`32`
- Y'\ :sub:`33`
* -
* - start1 + 0:
- Cb\ :sub:`00`
- Cb\ :sub:`01`
- Cb\ :sub:`02`
- Cb\ :sub:`03`
* - start1 + 4:
- Cb\ :sub:`10`
- Cb\ :sub:`11`
- Cb\ :sub:`12`
- Cb\ :sub:`13`
* - start1 + 8:
- Cb\ :sub:`20`
- Cb\ :sub:`21`
- Cb\ :sub:`22`
- Cb\ :sub:`23`
* - start1 + 12:
- Cb\ :sub:`20`
- Cb\ :sub:`21`
- Cb\ :sub:`32`
- Cb\ :sub:`33`
* -
* - start2 + 0:
- Cr\ :sub:`00`
- Cr\ :sub:`01`
- Cr\ :sub:`02`
- Cr\ :sub:`03`
* - start2 + 4:
- Cr\ :sub:`10`
- Cr\ :sub:`11`
- Cr\ :sub:`12`
- Cr\ :sub:`13`
* - start2 + 8:
- Cr\ :sub:`20`
- Cr\ :sub:`21`
- Cr\ :sub:`22`
- Cr\ :sub:`23`
* - start2 + 12:
- Cr\ :sub:`30`
- Cr\ :sub:`31`
- Cr\ :sub:`32`
- Cr\ :sub:`33`
**Color Sample Location:**
Chroma samples are :ref:`co-sited<yuv-chroma-cosited>`.
|
