only even lines (if 0) or only odd lines (if 1) rather than averaging
pairs of lines. this may be useful for slightly improving performance
or for dirty deinterlacing.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8871 b3059339-0415-0410-9bf9-f77b7e298cf2
(useful for downsampling luma for low-res output devices without
losing chroma samples, when hardware downscaling is poor quality or
unavailable)
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7156 b3059339-0415-0410-9bf9-f77b7e298cf2
rfelker
arpi