2016-06-30 21:18:56 +08:00
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.. -*- coding: utf-8; mode: rst -*-
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.. _V4L2-PIX-FMT-Y16:
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*************************
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V4L2_PIX_FMT_Y16 ('Y16 ')
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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 least
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significant byte is stored at lower memory addresses (little-endian).
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2016-07-10 22:57:43 +08:00
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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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- .. row 1
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- start + 0:
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- Y'\ :sub:`00low`
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- Y'\ :sub:`00high`
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- Y'\ :sub:`01low`
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- Y'\ :sub:`01high`
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- Y'\ :sub:`02low`
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- Y'\ :sub:`02high`
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- Y'\ :sub:`03low`
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- Y'\ :sub:`03high`
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- .. row 2
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- start + 8:
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- Y'\ :sub:`10low`
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- Y'\ :sub:`10high`
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- Y'\ :sub:`11low`
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- Y'\ :sub:`11high`
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- Y'\ :sub:`12low`
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- Y'\ :sub:`12high`
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- Y'\ :sub:`13low`
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- Y'\ :sub:`13high`
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- .. row 3
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- start + 16:
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- Y'\ :sub:`20low`
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- Y'\ :sub:`20high`
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- Y'\ :sub:`21low`
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- Y'\ :sub:`21high`
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- Y'\ :sub:`22low`
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- Y'\ :sub:`22high`
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- Y'\ :sub:`23low`
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- Y'\ :sub:`23high`
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- .. row 4
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- start + 24:
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- Y'\ :sub:`30low`
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- Y'\ :sub:`30high`
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- Y'\ :sub:`31low`
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- Y'\ :sub:`31high`
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- Y'\ :sub:`32low`
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- Y'\ :sub:`32high`
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- Y'\ :sub:`33low`
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- Y'\ :sub:`33high`
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