threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
116 lines
2.3 KiB
ReStructuredText
116 lines
2.3 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _V4L2-PIX-FMT-YUV411P:
|
|
|
|
*****************************
|
|
V4L2_PIX_FMT_YUV411P ('411P')
|
|
*****************************
|
|
|
|
|
|
Format with ¼ horizontal chroma resolution, also known as YUV 4:1:1.
|
|
Planar layout as opposed to ``V4L2_PIX_FMT_Y41P``
|
|
|
|
|
|
Description
|
|
===========
|
|
|
|
This format is not commonly used. This is a planar format similar to the
|
|
4:2:2 planar format except with half as many chroma. The three
|
|
components are separated into three sub-images or planes. The Y plane is
|
|
first. The Y plane has one byte per pixel. The Cb plane immediately
|
|
follows the Y plane in memory. The Cb plane is ¼ the width of the Y
|
|
plane (and of the image). Each Cb belongs to 4 pixels all on the same
|
|
row. For example, Cb\ :sub:`0` belongs to Y'\ :sub:`00`, Y'\ :sub:`01`,
|
|
Y'\ :sub:`02` and Y'\ :sub:`03`. Following the Cb plane is the Cr plane,
|
|
just like the Cb plane.
|
|
|
|
If the Y plane has pad bytes after each row, then the Cr and Cb planes
|
|
have ¼ as many pad bytes after their rows. In other words, four C x rows
|
|
(including padding) is exactly as long as one Y row (including padding).
|
|
|
|
**Byte Order.**
|
|
Each cell is one byte.
|
|
|
|
|
|
|
|
.. flat-table::
|
|
:header-rows: 0
|
|
:stub-columns: 0
|
|
|
|
* - start + 0:
|
|
- Y'\ :sub:`00`
|
|
- Y'\ :sub:`01`
|
|
- Y'\ :sub:`02`
|
|
- Y'\ :sub:`03`
|
|
* - start + 4:
|
|
- Y'\ :sub:`10`
|
|
- Y'\ :sub:`11`
|
|
- Y'\ :sub:`12`
|
|
- Y'\ :sub:`13`
|
|
* - start + 8:
|
|
- Y'\ :sub:`20`
|
|
- Y'\ :sub:`21`
|
|
- Y'\ :sub:`22`
|
|
- Y'\ :sub:`23`
|
|
* - start + 12:
|
|
- Y'\ :sub:`30`
|
|
- Y'\ :sub:`31`
|
|
- Y'\ :sub:`32`
|
|
- Y'\ :sub:`33`
|
|
* - start + 16:
|
|
- Cb\ :sub:`00`
|
|
* - start + 17:
|
|
- Cb\ :sub:`10`
|
|
* - start + 18:
|
|
- Cb\ :sub:`20`
|
|
* - start + 19:
|
|
- Cb\ :sub:`30`
|
|
* - start + 20:
|
|
- Cr\ :sub:`00`
|
|
* - start + 21:
|
|
- Cr\ :sub:`10`
|
|
* - start + 22:
|
|
- Cr\ :sub:`20`
|
|
* - start + 23:
|
|
- Cr\ :sub:`30`
|
|
|
|
|
|
**Color Sample Location:**
|
|
|
|
|
|
|
|
.. flat-table::
|
|
:header-rows: 0
|
|
:stub-columns: 0
|
|
|
|
* -
|
|
- 0
|
|
- 1
|
|
-
|
|
- 2
|
|
- 3
|
|
* - 0
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
* - 1
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
* - 2
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
* - 3
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|