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

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Apr 12 00:17:31 2014 +0200| [27763db928b594208ce6e241e1eb48799093796e] | committer: Michael Niedermayer

Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Improve amr bitrate calculation for VBR files.
  Warn if rawvideo and an unreadable pix_fmt are written.

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=27763db928b594208ce6e241e1eb48799093796e
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