[FFmpeg-cvslog] Merge commit 'd785f6940144eb6ce4c24309ed034056b81395bc' into release/0.8

[Michael Niedermayer]

ffmpeg | branch: release/0.7 | Michael Niedermayer <michaelni at gmx.at> | Sun Sep 22 17:22:35 2013 +0200| [0a41da3e9d2090c562b752d086bcbd4dee69c796] | committer: Michael Niedermayer

Merge commit 'd785f6940144eb6ce4c24309ed034056b81395bc' into release/0.8

* commit 'd785f6940144eb6ce4c24309ed034056b81395bc':
  shorten: validate that the channel count in the header is not <= 0
  matroskadec: request a read buffer for the wav header
  h264: check for luma and chroma bit depth being equal
  xxan: fix invalid memory access in xan_decode_frame_type0()
  wmadec: require block_align to be set.

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0a41da3e9d2090c562b752d086bcbd4dee69c796
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