fix incorrect display of fps when dr kicks in
ActiveAE: slightly reduce buffer size
Revert "vdpau: comment some features that will be added later"

This reverts commit e00b4f65864d623ab4d2e9e5c06db138e661f1cf.
xbmc pr 3080
ActiveAE: add some debug logging
dvdplayer: rename codec ctrl flags
VAAPI: implement codec control flags
consider rounding errors in dropping control
pthreads: use mutex protocol PTHREAD_PRIO_INHERIT
vaapi: lock gfx context on pre-cleanup