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

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Jun 12 20:44:57 2012 +0200| [dc1c79be1bfc76839b1fd277a55e6baad4379498] | committer: Michael Niedermayer

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  avfilter: Log an error if avfilter fails to configure a link.
  avconv: support only native pthreads.
  rtmp: Fix a possible access to invalid memory location when the playpath is too short.

Conflicts:
	ffmpeg.c

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=dc1c79be1bfc76839b1fd277a55e6baad4379498
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