doc/encoders: Add documentation for libmp3lame

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4703a345fb41b14fe28f7e6bf7f60bb2213aa9e0)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/encoders: add documentation for libtwolame
(cherry picked from commit ea038b996d5662702b2247a6aa919dee1cebc0be)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/encoders: Add libvo-aacenc doc

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ba7cb4807f050c401f8fd7ef1d1065b138358135)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/encoders: Add libvo-amrwbenc doc

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0ec65aa1046a4417d5c7dfcf8faeecde60e3fe00)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	doc/encoders.texi
doc/general: Make the license status of the Android libraries clearer

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6fe419bf73146655961a373c734e9e4d8826c835)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/decoders: Document libcelt

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e3580449221c79cf611995dc7e2fcb61dd867d4c)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/encoders: Add libopencore-amrnb doc

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9ead06057acfcc43bcb99a63a7c58543007b2847)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/decoders: Document libgsm decoder

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c16496c3770fa083472ab86146c18dc96c1feea7)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/decoders: Document libilbc decoder

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8cdea50f6eee1271e24ff0c9590522f8323e87fe)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/decoders: Document libopencore-amrnb decoder

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b43860ee0c27279f2fa020ea965c03d359f8f45c)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/decoders: Add libopencore-amrwb decoder doc

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 83647ace735d1707d4b28345ef77fefe525ea52e)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/encoders: alphabetically list the encoders

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 934df3b0375743ae2b03168a4174edb9f88a6889)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	doc/encoders.texi
doc/decoders: document libopus decoder

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 7eb5288f17aad81d5bd1b4d3d46533e457df262c)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/muxers: Add AIFF doc

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 4ec46b1160eb549a551823c168905b43922add31)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/encoders: add libopus encoder doc

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 561e05136f1cbe28a79af1940aa137f70281eef4)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	doc/encoders.texi
doc/encoders: add libxvid doc

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 6b255e5e70c72aa59ff7aed74b4ee976223eb140)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	doc/encoders.texi
doc/filters: review introductory example and explanation

In particular, fix wrong vertical mirroring command, and clarify
and extend explanation.

Based on a patch by littlebat <dashing.meng@gmail.com>.

Should fix trac ticket #2413.
(cherry picked from commit 215ca864759a54f45265a51ac57dbfd75cb23da2)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	doc/filters.texi
doc/codecs: fix dangling reference to codec-options chapter
(cherry picked from commit b4bd21b7fe2ad8be59b16538448586814e5db65b)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	doc/codecs.texi
	doc/encoders.texi
doc/texi2pod.pl: skip printing chapter names if they are disabled
(cherry picked from commit c838701ce4515bd51f7827be0b20f256ba5c69f3)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/texipod: add rule to correctly interpret @ref{ANCHOR,XREF,SECTION_NAME,...}

This allows to name an internal reference in the POD/MAN output.
(cherry picked from commit c499d45c6bea8d7bbbb7a819c53fe9766136bf29)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>