Add column hints for LaTeX to format columns on the tables inside
pixfmt-002.rst and pixfmt-006.rst.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Lots of tables at extended-controls.rst need explicit hints for
LaTeX to adjust their widths. Provide that.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Manually adjust the table width for it to look nice on PDF output.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

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: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Both tables on this rst file were not shown right, as they miss
the proper tag (tabularcolumns) to specify the column widths
required for PDF and LaTeX output.

Also, the second table is too big to fit into one page. So,
it should use the longtable class to allow it to be split into
two pages.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

There are two tables with a C code-block inside it. Unfortunately,
that causes LaTeX output to break. Yet, there's nothing special
there, so let's remove the code-block from them.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Change multi-line note tags to be more symetric, e. g. not starting
the text together witht the tag.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The items at the sound carrier had a bullet. Those are not needed.

So, get rid of them.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Somehow, the conversion broke a reference here. Re-add it.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

pdflatex doesn't like gif images:
	None:None: WARNING: no matching candidate for image URI u'media/uapi/v4l/pixfmt-nv12mt_files/nv12mt.*'
	None:None: WARNING: no matching candidate for image URI u'media/uapi/v4l/pixfmt-nv12mt_files/nv12mt_example.*'

But it works fine with png. So, convert them. As a plus, PNG images
are smaller.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The uAPI book has 5 parts, but they lost numeration after
conversion to rst. Manually number those parts, and make
the main index with 1 depth, to only show the parts and
the annexes.

At each part, use :maxwidth: 5, in order to show a more
complete index.

While here, fix the cross-references between different
books.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Fix those warnings:
	Documentation/output/videodev2.h.rst:6: WARNING: undefined label: vidioc_unsubscribe_event (if the link has no caption the label must precede a section header)
	Documentation/media/uapi/v4l/dev-overlay.rst:248: WARNING: Title underline too short.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This patch touches on places where it shouldn't: image
files and code examples. Also, it doesn't fix all array
occurrences.

So, let's revert it.

This reverts commit ffbab694.

Those characters are used for citations. Better to escape, to
avoid them to be misinterpreted.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

According with ReST spec, footnotes should be like:
[#name], and not [name]. So, change them.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Document V4L2_DV_PROGRESSIVE and V4L2_DV_INTERLACED and
fix missing references.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Fix missing documentation, and its cross reference.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Fix it by adding a header to the flat-table to match to
the list of define symbols.

As a side-effect, it also removes some exceptions from
videodev2.h.rst.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

There are several notes and warning mesages in the middle of
the media docbook. Use the ReST tags for that, as it makes
them visually better and hightlights them.

While here, modify a few ones to make them clearer.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Unfortunately, captions are new on Sphinx for c blocks: it was
added only on version 1.3. Also, it were already bad enough
not being able to auto-numerate them.

So, let's give up and use, instead, titles before the examples.
Not much is lost, and, as a side track, we don't need to
numerate them anymore.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

There's no need to say: Table of Contents there. Also, this
generates a duplicated caption xref. So, remove, to use the
same format on every part.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This is the reST migration of media's CEC part.  The migration is based
on media_tree's cec branch:

 https://git.linuxtv.org/media_tree.git

 c7169ad5 * cec media_tree/cec [media] DocBook/media: add CEC documentation
Signed-off-by: NMarkus Heiser <markus.heiser@darmarIT.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Changeset 811c6d6a ("[media] V4L: fix the Z16 format definition")
fixed the definition for DocBook, but we need to replicate it
also to ReST.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Changeset 8c9f46095176 ("[media] DocBook: mention the memory type to
be set for all streaming I/O") updated the media DocBook to mention
the need of filling the memory types. We need to keep the ReST
doc updated to such change.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Commit 707e65831d3b("[media] DocBook: add dmabuf as streaming I/O
in VIDIOC_REQBUFS description") added DMABUF to reqbufs description,
but, as we're migrating to ReST markup, we need to keep it in sync
with the change.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The name of the subsystem is "media", and not "linux_tv". Also,
as we plan to add other stuff there in the future, let's
rename also the media uAPI book to media_uapi, to make it
clearer.

No functional changes.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>