2016-06-30 16:18:56 +03:00
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.. -*- coding: utf-8; mode: rst -*-
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.. _V4L2-PIX-FMT-SRGGB8:
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2016-08-05 13:20:21 +03:00
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.. _v4l2-pix-fmt-sbggr8:
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.. _v4l2-pix-fmt-sgbrg8:
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.. _v4l2-pix-fmt-sgrbg8:
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2016-06-30 16:18:56 +03:00
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2016-08-05 13:20:21 +03:00
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***************************************************************************************************************************
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V4L2_PIX_FMT_SRGGB8 ('RGGB'), V4L2_PIX_FMT_SGRBG8 ('GRBG'), V4L2_PIX_FMT_SGBRG8 ('GBRG'), V4L2_PIX_FMT_SBGGR8 ('BA81'),
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***************************************************************************************************************************
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2016-06-30 16:18:56 +03:00
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2016-08-05 13:20:21 +03:00
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8-bit Bayer formats
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2016-06-30 16:18:56 +03:00
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Description
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===========
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2016-08-05 13:20:21 +03:00
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These four pixel formats are raw sRGB / Bayer formats with 8 bits per
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sample. Each sample is stored in a byte. Each n-pixel row contains n/2
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green samples and n/2 blue or red samples, with alternating red and
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blue rows. They are conventionally described as GRGR... BGBG...,
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RGRG... GBGB..., etc. Below is an example of one of these formats:
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2016-06-30 16:18:56 +03:00
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2016-07-04 19:58:01 +03:00
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**Byte Order.**
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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 14:14:19 +03:00
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2016-06-30 16:18:56 +03:00
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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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2016-08-05 13:20:21 +03:00
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- B\ :sub:`00`
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- G\ :sub:`01`
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- B\ :sub:`02`
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- G\ :sub:`03`
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- .. row 2
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- start + 4:
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- G\ :sub:`10`
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- R\ :sub:`11`
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- G\ :sub:`12`
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- R\ :sub:`13`
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- .. row 3
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- start + 8:
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- B\ :sub:`20`
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- G\ :sub:`21`
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- B\ :sub:`22`
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- G\ :sub:`23`
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- .. row 4
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- start + 12:
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- G\ :sub:`30`
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- R\ :sub:`31`
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- G\ :sub:`32`
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2016-08-05 13:20:21 +03:00
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- R\ :sub:`33`
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