Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Force re-generation of the manuals when an included file is modified.
The current dependency generation system is enable to track nested
inclusions.

The drawback is that the files will be generated even when there is no
strict need (for example if filters.texi is modified, ffmpeg.1 is
rebuilt), thus it trades a false negative with a false positive.

In particular, add documentation configuration system, through the
doc/config.texi file.

Fix trac issue #2374.

The paragraph is about what ffserver is not and where to look for other
information, but is pretty redundant and distracting, especially
considering the new organization of the documentation.

In particular, add some markup, fix empty line, and merge it with "How
does it work?" section.

Add more references, and generate alternative variants for HTML and POD
output. In particular, this allows to render a "See Also" chapter in the
HTML output.

Fix syntax, remove pointless introductory sentence, improve overall
consistency.

Factorize.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This reverts commit f8a45fa1.

Conflicts:

	doc/optimization.txt

unless it stands for ffmpeg the program or is historic

The generated HTML files are similar to the ones generated with
texi2html 1.56k used on the website.

Tested with texi2html 1.78 and 5.0. 1.78 is the minimal recommended
version.

The removed @sp from the titlepage section were ignored until
texi2html 5.0. If not removed the pages generated by 5.0 will have ugly
empty space around the title.
(cherry picked from commit a8f0814a)

The generated HTML files are similar to the ones generated with
texi2html 1.56k used on the website.

Tested with texi2html 1.78 and 5.0. 1.78 is the minimal recommended
version.

The removed @sp from the titlepage section were ignored until
texi2html 5.0. If not removed the pages generated by 5.0 will have ugly
empty space around the title.

Originally committed as revision 26006 to svn://svn.ffmpeg.org/ffmpeg/trunk

them at the beginning of the file, for consistency with the final
ordering of the corresponding man pages.

Also create a separate @chapter for the "Options" section, as it is
done for the man pages, rather than merge it in the same section of
"Synopsis".

Originally committed as revision 23541 to svn://svn.ffmpeg.org/ffmpeg/trunk

of the ff* tools man pages.

Originally committed as revision 23492 to svn://svn.ffmpeg.org/ffmpeg/trunk

consistency with the corresponding man section.

Originally committed as revision 23452 to svn://svn.ffmpeg.org/ffmpeg/trunk

Also replace "the HTML documentation of @file{ffmpeg}" with "the FFmpeg
HTML documentation", which is more generic.

Originally committed as revision 23444 to svn://svn.ffmpeg.org/ffmpeg/trunk

distinguish them from the generic common options.

Originally committed as revision 22602 to svn://svn.ffmpeg.org/ffmpeg/trunk

section "Generic options".

Originally committed as revision 21934 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20907 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20906 to svn://svn.ffmpeg.org/ffmpeg/trunk

filters.
Currently filters are not registered, so the option will show none.

Originally committed as revision 20807 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20561 to svn://svn.ffmpeg.org/ffmpeg/trunk

The -loglevel option makes possible to set the logging level used by
the libav* libraries.

Originally committed as revision 20035 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 15613 to svn://svn.ffmpeg.org/ffmpeg/trunk

documentation. Philip Gladstone aka philipjsg contributed the first
version of the section named Quickstart (now incorporated into the
DESCRIPTION section).

Originally committed as revision 14042 to svn://svn.ffmpeg.org/ffmpeg/trunk

directs logs to stdout.

Originally committed as revision 13982 to svn://svn.ffmpeg.org/ffmpeg/trunk

man DESCRIPTION section.

Originally committed as revision 13941 to svn://svn.ffmpeg.org/ffmpeg/trunk