[FFmpeg-cvslog] Merge remote-tracking branch 'cus/stable'

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Oct 26 13:54:25 2013 +0200| [444ce03f0f15024f596e42753343455291f2b558] | committer: Michael Niedermayer

Merge remote-tracking branch 'cus/stable'

* cus/stable:
  ffplay: add support for libswresample options
  ffplay: use av_frame_get_pkt_pos instead directly accessing pkt pos
  ffplay: factor out picture freeing code
  ffplay: update and extend documentation for channel and stream switching

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=444ce03f0f15024f596e42753343455291f2b558
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