linux_dsm_epyc7002/Documentation/media/uapi/v4l/pixfmt-uv8.rst
Mauro Carvalho Chehab 5bd4bb7817 [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>
2016-08-22 10:07:12 -03:00

79 lines
1.0 KiB
ReStructuredText

.. -*- coding: utf-8; mode: rst -*-
.. _V4L2-PIX-FMT-UV8:
************************
V4L2_PIX_FMT_UV8 ('UV8')
************************
*man V4L2_PIX_FMT_UV8(2)*
UV plane interleaved
Description
===========
In this format there is no Y plane, Only CbCr plane. ie (UV interleaved)
**Byte Order.**
Each cell is one byte.
.. tabularcolumns:: |p{5.8cm}|p{2.9cm}|p{2.9cm}|p{2.9cm}|p{3.0cm}|
.. flat-table::
:header-rows: 0
:stub-columns: 0
:widths: 2 1 1 1 1
- .. row 1
- start + 0:
- Cb\ :sub:`00`
- Cr\ :sub:`00`
- Cb\ :sub:`01`
- Cr\ :sub:`01`
- .. row 2
- start + 4:
- Cb\ :sub:`10`
- Cr\ :sub:`10`
- Cb\ :sub:`11`
- Cr\ :sub:`11`
- .. row 3
- start + 8:
- Cb\ :sub:`20`
- Cr\ :sub:`20`
- Cb\ :sub:`21`
- Cr\ :sub:`21`
- .. row 4
- start + 12:
- Cb\ :sub:`30`
- Cr\ :sub:`30`
- Cb\ :sub:`31`
- Cr\ :sub:`31`