679f4d6ea5
On several tables, the color sample location table preamble is written as: Color Sample Location.. Instead of: Color Sample Location: I suspect that the repetition of such pattern was due to some copy-and-paste (or perhaps some error during DocBook conversion). Anyway, fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
152 lines
2.5 KiB
ReStructuredText
152 lines
2.5 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _V4L2-PIX-FMT-Y41P:
|
|
|
|
**************************
|
|
V4L2_PIX_FMT_Y41P ('Y41P')
|
|
**************************
|
|
|
|
|
|
Format with ¼ horizontal chroma resolution, also known as YUV 4:1:1
|
|
|
|
|
|
Description
|
|
===========
|
|
|
|
In this format each 12 bytes is eight pixels. In the twelve bytes are
|
|
two CbCr pairs and eight Y's. The first CbCr pair goes with the first
|
|
four Y's, and the second CbCr pair goes with the other four Y's. The Cb
|
|
and Cr components have one fourth the horizontal resolution of the Y
|
|
component.
|
|
|
|
Do not confuse this format with
|
|
:ref:`V4L2_PIX_FMT_YUV411P <V4L2-PIX-FMT-YUV411P>`. Y41P is derived
|
|
from "YUV 4:1:1 *packed*", while YUV411P stands for "YUV 4:1:1
|
|
*planar*".
|
|
|
|
**Byte Order.**
|
|
Each cell is one byte.
|
|
|
|
|
|
|
|
|
|
.. flat-table::
|
|
:header-rows: 0
|
|
:stub-columns: 0
|
|
|
|
* - start + 0:
|
|
- Cb\ :sub:`00`
|
|
- Y'\ :sub:`00`
|
|
- Cr\ :sub:`00`
|
|
- Y'\ :sub:`01`
|
|
- Cb\ :sub:`01`
|
|
- Y'\ :sub:`02`
|
|
- Cr\ :sub:`01`
|
|
- Y'\ :sub:`03`
|
|
- Y'\ :sub:`04`
|
|
- Y'\ :sub:`05`
|
|
- Y'\ :sub:`06`
|
|
- Y'\ :sub:`07`
|
|
* - start + 12:
|
|
- Cb\ :sub:`10`
|
|
- Y'\ :sub:`10`
|
|
- Cr\ :sub:`10`
|
|
- Y'\ :sub:`11`
|
|
- Cb\ :sub:`11`
|
|
- Y'\ :sub:`12`
|
|
- Cr\ :sub:`11`
|
|
- Y'\ :sub:`13`
|
|
- Y'\ :sub:`14`
|
|
- Y'\ :sub:`15`
|
|
- Y'\ :sub:`16`
|
|
- Y'\ :sub:`17`
|
|
* - start + 24:
|
|
- Cb\ :sub:`20`
|
|
- Y'\ :sub:`20`
|
|
- Cr\ :sub:`20`
|
|
- Y'\ :sub:`21`
|
|
- Cb\ :sub:`21`
|
|
- Y'\ :sub:`22`
|
|
- Cr\ :sub:`21`
|
|
- Y'\ :sub:`23`
|
|
- Y'\ :sub:`24`
|
|
- Y'\ :sub:`25`
|
|
- Y'\ :sub:`26`
|
|
- Y'\ :sub:`27`
|
|
* - start + 36:
|
|
- Cb\ :sub:`30`
|
|
- Y'\ :sub:`30`
|
|
- Cr\ :sub:`30`
|
|
- Y'\ :sub:`31`
|
|
- Cb\ :sub:`31`
|
|
- Y'\ :sub:`32`
|
|
- Cr\ :sub:`31`
|
|
- Y'\ :sub:`33`
|
|
- Y'\ :sub:`34`
|
|
- Y'\ :sub:`35`
|
|
- Y'\ :sub:`36`
|
|
- Y'\ :sub:`37`
|
|
|
|
|
|
**Color Sample Location:**
|
|
|
|
.. flat-table::
|
|
:header-rows: 0
|
|
:stub-columns: 0
|
|
|
|
* -
|
|
- 0
|
|
- 1
|
|
-
|
|
- 2
|
|
- 3
|
|
- 4
|
|
- 5
|
|
-
|
|
- 6
|
|
- 7
|
|
* - 0
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
* - 1
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
* - 2
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
* - 3
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|
|
- Y
|
|
- Y
|
|
- C
|
|
- Y
|
|
- Y
|