git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13000 b3059339-0415-0410-9bf9-f77b7e298cf2
like vf_format, but in reverse. this time I committed the filter, too. :) git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11929 b3059339-0415-0410-9bf9-f77b7e298cf2