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

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Nov  3 13:57:01 2013 +0100| [2ed562d5fa05ae624c417210b71f6b8fdd46524d] | committer: Michael Niedermayer

Merge remote-tracking branch 'cigaes/master'

* cigaes/master:
  lavfi/af_pan: support unknown layouts on input.
  lavfi/af_pan: support unknown layouts on output.
  lswr: fix assert failure on unknown layouts.
  lavfi: parsing helper for unknown channel layouts.
  lavfi/avfiltergraph: do not reduce incompatible lists.
  lavfi/avfiltergraph: suggest a solution when format selection fails.
  lavd/lavfi: support unknown channel layouts.
  lavf/wavenc: check for a single stream.
  lavd/alsa: add stream validation
  lavd/alsa: fix timestamp calculation

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2ed562d5fa05ae624c417210b71f6b8fdd46524d
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