USE_OSD was hardcoded to true in configure, manually turning it off
would break compilation, and most OSD-related code wasn't affected by it
anyway so it did nothing useful.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@21177 b3059339-0415-0410-9bf9-f77b7e298cf2
return values can be negative (VO_ERROR, VO_NOTAVAIL and VO_NOTIMPL), so it's
changed to int now.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16172 b3059339-0415-0410-9bf9-f77b7e298cf2