[FFmpeg-cvslog] Merge remote-tracking branch 'cigaes/master'

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Mar 20 13:57:59 2013 +0100| [9ea6c14820da382281092660cbf2b502ab6f3403] | committer: Michael Niedermayer

Merge remote-tracking branch 'cigaes/master'

* cigaes/master:
  lavu/frame: use channels rather than channel_layout.
  lavf: avformat_seek_file(): validate stream_index.
  lavf/concatdec: fix possible leak in case of malloc failure.
  lavfi/buffersink: check av_frame_ref() failure.

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9ea6c14820da382281092660cbf2b502ab6f3403
---