linux_old1/Documentation/media/uapi/v4l/pixfmt-yvyu.rst

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.. -*- coding: utf-8; mode: rst -*-
.. _V4L2-PIX-FMT-YVYU:
**************************
V4L2_PIX_FMT_YVYU ('YVYU')
**************************
Variation of ``V4L2_PIX_FMT_YUYV`` with different order of samples in
memory
Description
===========
In this format each four bytes is two pixels. Each four bytes is two
Y's, a Cb and a Cr. Each Y goes to one of the pixels, and the Cb and Cr
belong to both pixels. As you can see, the Cr and Cb components have
half the horizontal resolution of the Y component.
**Byte Order.**
Each cell is one byte.
.. flat-table::
:header-rows: 0
:stub-columns: 0
[media] v4l: doc: Remove row numbers from tables 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>
2016-09-05 19:44:34 +08:00
* - start + 0:
- Y'\ :sub:`00`
- Cr\ :sub:`00`
- Y'\ :sub:`01`
- Cb\ :sub:`00`
- Y'\ :sub:`02`
- Cr\ :sub:`01`
- Y'\ :sub:`03`
- Cb\ :sub:`01`
* - start + 8:
- Y'\ :sub:`10`
- Cr\ :sub:`10`
- Y'\ :sub:`11`
- Cb\ :sub:`10`
- Y'\ :sub:`12`
- Cr\ :sub:`11`
- Y'\ :sub:`13`
- Cb\ :sub:`11`
* - start + 16:
- Y'\ :sub:`20`
- Cr\ :sub:`20`
- Y'\ :sub:`21`
- Cb\ :sub:`20`
- Y'\ :sub:`22`
- Cr\ :sub:`21`
- Y'\ :sub:`23`
- Cb\ :sub:`21`
* - start + 24:
- Y'\ :sub:`30`
- Cr\ :sub:`30`
- Y'\ :sub:`31`
- Cb\ :sub:`30`
- Y'\ :sub:`32`
- Cr\ :sub:`31`
- Y'\ :sub:`33`
- Cb\ :sub:`31`
**Color Sample Location:**
.. flat-table::
:header-rows: 0
:stub-columns: 0
[media] v4l: doc: Remove row numbers from tables 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>
2016-09-05 19:44:34 +08:00
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* - 0
- Y
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* - 1
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* - 2
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