mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
c2b66cafdf
Shorten the tables by removing row numbers in comments, allowing for
later insertion of rows with minimal diffs.
All changes have been generated by the following script.
import io
import re
import sys
def process_table(fname, data):
if fname.endswith('hist-v4l2.rst'):
data = re.sub(u'\n{1,2}\t( ?) -( ?) ?', u'\n\t\\1 -\\2', data, flags = re.MULTILINE)
data = re.sub(u'\n(\t| )- \.\. row [0-9]+\n\t ?-( ?) ?', u'\\1* -\\2', data, flags = re.MULTILINE)
else:
data = re.sub(u'\n{1,2} -( ?) ?', u'\n -\\1', data, flags = re.MULTILINE)
data = re.sub(u'(\n?)(\n\n - \.\. row 1\n)', u'\n\\2', data, flags = re.MULTILINE)
data = re.sub(u'\n - \.\. row [0-9]+\n -( ?) ?', u' * -\\1', data, flags = re.MULTILINE)
data = re.sub(u'\n - \.\. row [0-9]+\n \.\. (_[A-Z0-9_`-]*:)', u'\n - .. \\1', data, flags = re.MULTILINE)
data = re.sub(u'\n - \.\. (_[A-Z0-9_`-]*:)\n -', u' * .. \\1\n\n -', data, flags = re.MULTILINE)
data = re.sub(u'^ - ', u' -', data, flags = re.MULTILINE)
data = re.sub(u'^(\t{1,2}) ', u'\\1', data, flags = re.MULTILINE)
return data
def process_file(fname, data):
buf = io.StringIO(data)
output = ''
in_table = False
table_separator = 0
for line in buf.readlines():
if line.find('.. flat-table::') != -1:
in_table = True
table = ''
elif in_table and not re.match('^[\t\n]|( )', line):
in_table = False
output += process_table(fname, table)
if in_table:
table += line
else:
output += line
if in_table:
in_table = False
output += process_table(fname, table)
return output
fname = sys.argv[1]
data = file(fname, 'rb').read().decode('utf-8')
data = process_file(fname, data)
file(fname, 'wb').write(data.encode('utf-8'))
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
127 lines
2.1 KiB
ReStructuredText
127 lines
2.1 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _V4L2-PIX-FMT-M420:
|
|
|
|
**************************
|
|
V4L2_PIX_FMT_M420 ('M420')
|
|
**************************
|
|
|
|
Format with ½ horizontal and vertical chroma resolution, also known as
|
|
YUV 4:2:0. Hybrid plane line-interleaved layout.
|
|
|
|
|
|
Description
|
|
===========
|
|
|
|
M420 is a YUV format with ½ horizontal and vertical chroma subsampling
|
|
(YUV 4:2:0). Pixels are organized as interleaved luma and chroma planes.
|
|
Two lines of luma data are followed by one line of chroma data.
|
|
|
|
The luma plane has one byte per pixel. The chroma plane contains
|
|
interleaved CbCr pixels subsampled by ½ in the horizontal and vertical
|
|
directions. Each CbCr pair belongs to four pixels. For example,
|
|
Cb\ :sub:`0`/Cr\ :sub:`0` belongs to Y'\ :sub:`00`, Y'\ :sub:`01`,
|
|
Y'\ :sub:`10`, Y'\ :sub:`11`.
|
|
|
|
All line lengths are identical: if the Y lines include pad bytes so do
|
|
the CbCr lines.
|
|
|
|
**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:
|
|
- Cb\ :sub:`00`
|
|
- Cr\ :sub:`00`
|
|
- Cb\ :sub:`01`
|
|
- Cr\ :sub:`01`
|
|
* - start + 16:
|
|
- Y'\ :sub:`20`
|
|
- Y'\ :sub:`21`
|
|
- Y'\ :sub:`22`
|
|
- Y'\ :sub:`23`
|
|
* - start + 20:
|
|
- Y'\ :sub:`30`
|
|
- Y'\ :sub:`31`
|
|
- Y'\ :sub:`32`
|
|
- Y'\ :sub:`33`
|
|
* - start + 24:
|
|
- Cb\ :sub:`10`
|
|
- Cr\ :sub:`10`
|
|
- Cb\ :sub:`11`
|
|
- Cr\ :sub:`11`
|
|
|
|
|
|
**Color Sample Location..**
|
|
|
|
|
|
|
|
.. flat-table::
|
|
:header-rows: 0
|
|
:stub-columns: 0
|
|
|
|
* -
|
|
- 0
|
|
-
|
|
- 1
|
|
- 2
|
|
-
|
|
- 3
|
|
* - 0
|
|
- Y
|
|
-
|
|
- Y
|
|
- Y
|
|
-
|
|
- Y
|
|
* -
|
|
-
|
|
- C
|
|
-
|
|
-
|
|
- C
|
|
-
|
|
* - 1
|
|
- Y
|
|
-
|
|
- Y
|
|
- Y
|
|
-
|
|
- Y
|
|
* -
|
|
* - 2
|
|
- Y
|
|
-
|
|
- Y
|
|
- Y
|
|
-
|
|
- Y
|
|
* -
|
|
-
|
|
- C
|
|
-
|
|
-
|
|
- C
|
|
-
|
|
* - 3
|
|
- Y
|
|
-
|
|
- Y
|
|
- Y
|
|
-
|
|
- Y
|