avidec: fix a memleak in the dv init code.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
(cherry picked from commit ce9bba5340a5fb6f38974a19af019dd6aa2da035)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
motionpixels: clip VLC codes.

Fixes invalid reads.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

(cherry picked from commit ca41c72c6d9515d9045bd3b68104525dee81b8d0)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
matroskadec: pad EBML_BIN data.

It might be passed to code requiring padding, such as lzo decompression.

Fixes invalid reads.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

(cherry picked from commit 30be1ea33e5525266ad871bed60b1893a53caeaf)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
alsa-audio-dec: explicitly cast the delay to a signed int64

Otherwise the expression will be evaluated as unsigned, which will break
when the result should be negative.
CC:libav-stable@libav.org

(cherry picked from commit 089fac77a6bf9199a5ec161e9c27850f0a680541)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
ffv1: Assume bitdepth 0 means 8bit

CC: libav-stable@libav.org
Reported-by: debian/726189
(cherry picked from commit a90905db2e6ab1840890f3a88bfd3bf008b9d886)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
indeo4: Check the block size if reusing the band configuration

Sample-Id: 00000287-google

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 0cb83c563848bf8f8365e7bd30e7e6b57ef360f0)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Merge commit '0358a099f8abe60230dc2e5bec59bfceb7d1be07' into release/1.1

* commit '0358a099f8abe60230dc2e5bec59bfceb7d1be07':
  indeo4: Check the block size if reusing the band configuration
  ffv1: Assume bitdepth 0 means 8bit
  alsa-audio-dec: explicitly cast the delay to a signed int64
  matroskadec: pad EBML_BIN data.
  motionpixels: clip VLC codes.
  avidec: fix a memleak in the dv init code.

Conflicts:
	libavcodec/ffv1dec.c
	libavcodec/indeo4.c
	libavdevice/alsa-audio-dec.c
	libavformat/matroskadec.c

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