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

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Thu Dec  6 16:03:13 2012 +0100| [71949ef715a29878424b2fb40c471cfb71c6bb98] | committer: Michael Niedermayer

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  h264: slice-mt: check master context for valid current_picture_ptr
  h264: slice-mt: get last_pic_dropable from master context
  alacenc: add support for multi-channel encoding

Conflicts:
	Changelog
	libavcodec/alac.c

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=71949ef715a29878424b2fb40c471cfb71c6bb98
---