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

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Apr 24 00:19:55 2012 +0200| [3bbf3f7e42247b7a8b34b1e8cc891b59e1327bb8] | committer: Michael Niedermayer

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  matroska: Clear prev_pkt between seeks.
  avutil: change default buffer size alignment for sample buffer functions
  audemux: Add a sanity check for the number of channels
  Remove libdirac decoder.
  matroska: Add incremental parsing of clusters.
  avconv: fix off by one check in complex_filter
  mpegts: Try seeking back even for nonseekable protocols
  swscale: K&R formatting cosmetics (part III)

Conflicts:
	configure
	doc/general.texi
	doc/platform.texi
	ffmpeg.c
	libavcodec/Makefile
	libavcodec/allcodecs.c
	libavcodec/libdirac.h
	libavcodec/libdiracdec.c
	libavformat/au.c
	libavformat/mpegts.c
	libswscale/input.c
	tests/ref/seek/lavf_mkv

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3bbf3f7e42247b7a8b34b1e8cc891b59e1327bb8
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