alsdec: Fix the clipping range

mcc_weightings is only 32 elements.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
alsdec: Clean up error paths

Fix at least a memory leak.

CC: libav-stable@libav.org
4xm: Reject not a multiple of 16 dimension

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
8bps: Bound-check the input buffer

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
8bps: Make the bound-checks consistent
avcodec/utils: Warn the user about the lack of a lock manager if insufficient locks are detected

A lock manager is not the only possibility to avoid open/close locking
issues but its easier and more robust than maintaining a lot of lock/unlock
calls.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/http: support reading compressed data

Derived from VLC's http module.
Original authors:
  Antoine Cellerier <dionoea@videolan.org>
  Sébastien Escudier <sebastien-devel@celeos.eu>
  Rémi Duraffort <ivoire@videolan.org>
  Rémi Denis-Courmont <remi@remlab.net>
  Francois Cartegnie <fcvlcdev@free.fr>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '70ecc175c7b513a153ac87d1c5d219556ca55070'

* commit '70ecc175c7b513a153ac87d1c5d219556ca55070':
  alsdec: Fix the clipping range

Conflicts:
	libavcodec/alsdec.c

See: feaff427c0df015146f660199453bd8c0314e677

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'ca488ad480360dfafcb5766f7bfbb567a0638979'

* commit 'ca488ad480360dfafcb5766f7bfbb567a0638979':
  alsdec: Clean up error paths

Conflicts:
	libavcodec/alsdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '2f034f255c49050e894ab9b88087c09ebe249f3f'

* commit '2f034f255c49050e894ab9b88087c09ebe249f3f':
  4xm: Reject not a multiple of 16 dimension

The newly added checks are redundant and thus replaced by asserts

See: db5b4875514eb7740844f514dbf236c9179a6a93
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'bd7b4da0f4627bb6c4a7c2575da83fe6b261a21c'

* commit 'bd7b4da0f4627bb6c4a7c2575da83fe6b261a21c':
  8bps: Bound-check the input buffer

Conflicts:
	libavcodec/8bps.c

See: 66ff90f4a3d81c25feaa672dc8cc9cc88017753d
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  8bps: Make the bound-checks consistent

Conflicts:
	libavcodec/8bps.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
alsdec: minor simplification in read_block()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
documented that av_codec_close is required to call

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/mpeg12dec: remove commented out assert

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

This is a minimal change to matroskaenc that implements CueRelativePosition in the output.
Most players will probably ignore this additional information, but it is in the
matroska spec, and it'd be nice to be able to make use of it.

Signed-off-by: Bernt Habermeier <bernt@wulfram.com>
Tested-by:  wm4 <nfxjfg@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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>
vf_scale: add output h/v_chr_pos parameterss

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
vf_scale: add input h/v_chr_pos parameters

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
swscale: exchange src & dst chroma pos

Found-by: wm4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>