Add support for VP9 decoding via FFmpeg.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36509 b3059339-0415-0410-9bf9-f77b7e298cf2
Try enabling DR for FFmpeg VP8 decoder.

VP8 seems to have emu-edge support now.
There might still be other issues, so bug reports
welcome.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36510 b3059339-0415-0410-9bf9-f77b7e298cf2
Fix hardware acceleration notification for VDPAU.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36511 b3059339-0415-0410-9bf9-f77b7e298cf2
Avoid message spam by not trying formats that will not work.

This helps mostly with the formats that support hardware
acceleration.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36512 b3059339-0415-0410-9bf9-f77b7e298cf2
Display messages that can be confusing only with -v.

The VO initialization line will still say which format
was chosen, including what kind of hardware acceleration.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36513 b3059339-0415-0410-9bf9-f77b7e298cf2