avformat/oggparsevorbis: fix leak of ct

Fixes CID1061058
Fixes fate

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d0a882ab1d2a4197da1edd77450af30e2da3460e)
avformat/oggparsevorbis: fix leak of tt

Fixes CID1061059
Fixes fate
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

(cherry picked from commit f3b7f470701224086d06012f1d9a31864abe9300)
matroskadec: Improve TTA duration calculation

Calculate the duration as accurately as possible to improve decoding of samples
where the last frame is smaller than the rest.

Signed-off-by: James Almer <jamrial@gmail.com>
Approved-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit af248fa1174200acb537a6ab1198bb2fed38e884)
avformat/matroskadec: check out_samplerate before using it in av_rescale()

Prevent assertion failure with damaged input

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 338f8b2eaf36f078eb5cc26ac10e651dc4c48243)
doc/encoders: partially rewrite and reformat libx264 docs

Format is based on the thread:
"[PATCH] doc/encoders: Add libopus encoder doc" (06-28-2013)
http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/165368/

Also merge the two option sections (Mapping and Private options).

Patch partially edited by Stefano Sabatini.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 11cb697501edf6447a718d6194f0e63ec2310d39)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
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>
doc/encoders: reformat libmp3lame doc

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 40b8350b57adaa9aaf6731bac5130d4fec1639c3)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/encoders: reformat and add some clarification in libtwolame doc

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit e45e72f5f89ef5a5791562cfcb935028b46ecd0a)

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

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 81bbe49a0e588aa899f37a567808ba8926d798d6)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
doc/formats: Add documentation for 3 parameters that have been missing

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b7dd4598630fb1f890ae060f21a9ec92a103f22d)

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

Thanks-to: Kostya Shishkov <kostya.shishkov@gmail.com>
Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 0e11790cf7eef3b0f38a64486da1e3fb8c7f14b8)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Merge remote-tracking branch 'jamrial/release/2.0' into release/2.0

* jamrial/release/2.0:
  avformat/matroskadec: check out_samplerate before using it in av_rescale()
  matroskadec: Improve TTA duration calculation
  avformat/oggparsevorbis: fix leak of tt
  avformat/oggparsevorbis: fix leak of ct

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'TimothyGu/release/2.0' into release/2.0

* TimothyGu/release/2.0:
  doc/encoders: add doc for AAC encoder
  doc/formats: Add documentation for 3 parameters that have been missing
  doc/encoders: improve libvo-aacenc doc
  doc/encoders: reformat and add some clarification in libtwolame doc
  doc/encoders: reformat libmp3lame doc
  doc/encoders: add libxvid doc
  doc/encoders: partially rewrite and reformat libx264 docs

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