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2020-04-14media: docs: move uAPI book to userspace-api/mediaMauro Carvalho Chehab1-669/+0
Since 2017, there is an space reserved for userspace API, created by changeset 1d596dee3862 ("docs: Create a user-space API guide"). As the media subsystem was one of the first subsystems to use Sphinx, until this patch, we were keeping things on a separate place. Let's just use the new location, as having all uAPI altogether will likely make things easier for developers. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-02-24media: Documentation/media/uapi: more readable unionsHans Verkuil1-9/+6
Avoid adding an extra columns when describing unions in the documentation. That makes it much harder to read. See e.g. VIDIOC_QUERY_EXT_CTRLS. Instead start off a union with 'union {' and end it with an extra row containing '}'. This leaves a lot more space for the description of the fields. This formatting technique was used in a few places already, but this patches fixes all remaining occurrences of 'union' in the media uAPI. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reported-by: Nicolas Dufresne <nicolas@ndufresne.ca> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2019-03-30media: pdf docs: adjust several tables for better displayMauro Carvalho Chehab1-11/+11
Avoid cell overlapping by changing some sizes, and changing the font sizes when needed. Tested with Sphinx 1.7.8. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: add SPDX header to media uAPI filesMauro Carvalho Chehab1-0/+9
All those files are under GFDL 1.1 or later, with no invariant sections. Tag them as such. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: remove text encoding from rst filesMauro Carvalho Chehab1-2/+0
This is not needed there. Also, the same UTF-8 encoding should be used on all documents. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2017-10-12Documentation: fix media related doc refsTom Saeger1-1/+1
Make media doc refs valid. Signed-off-by: Tom Saeger <tom.saeger@oracle.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-08-27media: uapi book: Fix a few Sphinx warningsMauro Carvalho Chehab1-0/+2
Solve the following issues: Documentation/media/uapi/v4l/dev-sliced-vbi.rst:208: ERROR: Content block expected for the "raw" directive; none found. Documentation/media/uapi/v4l/dev-sliced-vbi.rst:216: ERROR: Content block expected for the "raw" directive; none found. Documentation/media/uapi/v4l/pixfmt-packed-rgb.rst:645: ERROR: Content block expected for the "raw" directive; none found. Fixes: 70b074df4ed1 ("media: fix pdf build with Spinx 1.6") Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-27media: fix pdf build with Spinx 1.6Mauro Carvalho Chehab1-8/+15
Sphinx 1.6 generates some LaTeX code before each table, starting its own environment before calling tabulary, apparently to improve table layout. The problem is that such environment is incompatible with adjustbox. While, in thesis, it should be possible to override it or to redefine tabulary, I was unable to produce such patch. Also, that would likely break on some future Sphinx version. So, instead, let's just change the font size on bigger tables, in order for them to fit into the page size. That is not as good as adjustbox, and require some manual work, but it should be less sensitive to Sphinx changes. While here, adjust a few other tables whose text is exceeding the cell boundaries. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22[media] v4l: doc: Remove row numbers from tablesLaurent Pinchart1-466/+264
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>
2016-09-09[media] dev-sliced-vbi.rst: fix reference for v4l2_mpeg_vbi_ITV0Mauro Carvalho Chehab1-2/+4
The struct v4l2_mpeg_vbi_ITV0 is identical to struct v4l2_mpeg_vbi_itv0, except by its size, and it is documented at the same place at the book. Fix cross reference for it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-09[media] docs-rst: simplify c:type: cross referencesMauro Carvalho Chehab1-3/+3
Instead of using c:type:`struct foo <foo>`, use: struct c:type:`foo` This patch was generated via this shell script: for i in `find Documentation/media -type f`; do perl -ne 'if (m/\:c\:type\:\`struct\s+(\S+)\s*\<(\S+)\>\`/) { $s=$1; $r=$2; if ($s eq $r) { s/\:c\:type\:\`struct\s+(\S+)\s*\<(\S+)\>\`/struct :c:type:`$2`/; s/struct\s+struct/struct/; s/(struct\s+\:c\:type\:\`\S+\`)\s+structure/$1/; }} print $_' <$i >a && mv a $i; done Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-09[media] docs-rst: convert uAPI structs to C domainMauro Carvalho Chehab1-18/+18
instead of declaring the uAPI structs using usual refs, e. g.: .. _foo-struct: Use the C domain way: .. c:type:: foo_struct This way, the kAPI documentation can use cross-references to point to the uAPI symbols. That solves about ~100 undefined warnings like: WARNING: c:type reference target not found: foo_struct Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-22[media] docs-rst: fix some LaTeX errors when in interactive modeMauro Carvalho Chehab1-1/+1
There are several minor issues that are seen when building PDF on interactive mode. Fix them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-22[media] dev-sliced-vbi.rst: Adjust tables on LaTeX outputMauro Carvalho Chehab1-10/+24
Better format the tables in a way that will fit inside the page. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-22[media] dev-sliced-vbi.rst: use a footnote for VBI imagesMauro Carvalho Chehab1-2/+4
Just like on dvb-raw-vbi.rst, the LaTeX output doesn't work well with cell spans. Also, this is actually a note, so, move it to a footnote. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-22[media] docs-rst: add tabularcolumns to all tablesMauro Carvalho Chehab1-0/+18
LaTeX doesn't handle too well auto-width on tables, and ReST markup requires an special tag to give it the needed hints. As we're using A4 paper, we have 17cm of useful spaces. As most media tables have widths, let's use it to generate the needed via the following perl script: my ($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>
2016-07-13Revert "[media] docs-rst: escape [] characters"Mauro Carvalho Chehab1-29/+29
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 ffbab694ede33c294e5864a5e0bf4d1474446a71.
2016-07-12[media] docs-rst: escape [] charactersMauro Carvalho Chehab1-29/+29
Those characters are used for citations. Better to escape, to avoid them to be misinterpreted. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: use the right markup for footnotesMauro Carvalho Chehab1-2/+2
According with ReST spec, footnotes should be like: [#name], and not [name]. So, change them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08doc_rst: rename the media Sphinx suff to Documentation/mediaMauro Carvalho Chehab1-0/+822
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: Mauro Carvalho Chehab <mchehab@s-opensource.com>