2018-08-30 22:15:26 +08:00
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.. Permission is granted to copy, distribute and/or modify this
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.. document under the terms of the GNU Free Documentation License,
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.. Version 1.1 or any later version published by the Free Software
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.. Foundation, with no Invariant Sections, no Front-Cover Texts
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.. and no Back-Cover Texts. A copy of the license is included at
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.. Documentation/media/uapi/fdl-appendix.rst.
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..
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.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
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2016-06-30 21:18:56 +08:00
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.. _V4L2-PIX-FMT-Y16-BE:
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****************************************
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V4L2_PIX_FMT_Y16_BE ('Y16 ' | (1 << 31))
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****************************************
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Grey-scale image
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Description
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===========
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This is a grey-scale image with a depth of 16 bits per pixel. The most
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2016-07-10 22:57:43 +08:00
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significant byte is stored at lower memory addresses (big-endian).
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2016-08-16 04:49:50 +08:00
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.. note::
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The actual sampling precision may be lower than 16 bits, for
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2016-07-10 22:57:43 +08:00
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example 10 bits per pixel with values in range 0 to 1023.
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2016-06-30 21:18:56 +08:00
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2016-07-05 00:58:01 +08:00
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**Byte Order.**
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2016-06-30 21:18:56 +08:00
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Each cell is one byte.
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[media] docs-rst: add tabularcolumns to all tables
LaTeX doesn't handle too well auto-width on tables, and ReST
markup requires an special tag to give it the needed hints.
As we're using A4 paper, we have 17cm of useful spaces. As
most media tables have widths, let's use it to generate the
needed via the following perl script:
my ($line_size, $table_header, $has_cols) = (17.5, 0, 0);
my $out;
my $header = "";
my @widths = ();
sub round { $_[0] > 0 ? int($_[0] + .5) : -int(-$_[0] + .5) }
while (<>) {
if (!$table_header) {
$has_cols = 1 if (m/..\s+tabularcolumns::/);
if (m/..\s+flat-table::/) {
$table_header = 1;
$header = $_;
next;
}
$out .= $_;
next;
}
$header .= $_;
@widths = split(/ /, $1) if (m/:widths:\s+(.*)/);
if (m/^\n$/) {
if (!$has_cols && @widths) {
my ($tot, $t, $i) = (0, 0, 0);
foreach my $v(@widths) { $tot += $v; };
$out .= ".. tabularcolumns:: |";
for ($i = 0; $i < scalar @widths - 1; $i++) {
my $v = $widths[$i];
my $w = round(10 * ($v * $line_size) / $tot) / 10;
$out .= sprintf "p{%.1fcm}|", $w;
$t += $w;
}
my $w = $line_size - $t;
$out .= sprintf "p{%.1fcm}|\n\n", $w;
}
$out .= $header;
$table_header = 0;
$has_cols = 0;
$header = "";
@widths = ();
}
}
print $out;
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-17 19:14:19 +08:00
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2016-06-30 21:18:56 +08:00
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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[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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* - start + 0:
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- Y'\ :sub:`00high`
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- Y'\ :sub:`00low`
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- Y'\ :sub:`01high`
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- Y'\ :sub:`01low`
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- Y'\ :sub:`02high`
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- Y'\ :sub:`02low`
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- Y'\ :sub:`03high`
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- Y'\ :sub:`03low`
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* - start + 8:
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- Y'\ :sub:`10high`
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- Y'\ :sub:`10low`
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- Y'\ :sub:`11high`
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- Y'\ :sub:`11low`
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- Y'\ :sub:`12high`
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- Y'\ :sub:`12low`
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- Y'\ :sub:`13high`
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- Y'\ :sub:`13low`
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* - start + 16:
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- Y'\ :sub:`20high`
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- Y'\ :sub:`20low`
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- Y'\ :sub:`21high`
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- Y'\ :sub:`21low`
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- Y'\ :sub:`22high`
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- Y'\ :sub:`22low`
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- Y'\ :sub:`23high`
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- Y'\ :sub:`23low`
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* - start + 24:
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- Y'\ :sub:`30high`
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- Y'\ :sub:`30low`
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- Y'\ :sub:`31high`
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- Y'\ :sub:`31low`
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- Y'\ :sub:`32high`
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- Y'\ :sub:`32low`
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- Y'\ :sub:`33high`
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- Y'\ :sub:`33low`
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