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

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Mon Jan 13 22:12:38 2014 +0100| [cdce0e8a506cafebe47736d891f5b645b57d14b2] | committer: Michael Niedermayer

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  lavf: make av_probe_input_buffer more robust

Conflicts:
	libavformat/utils.c

Not merged as it depends on previous buggy changes

See: e74cd2f4706f71da5e9205003c1d8263b54ed3fb
See: ececbedaa86cddd883f6cdc12cdd1a75a0023550
Merged-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=cdce0e8a506cafebe47736d891f5b645b57d14b2
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