I demand that Luis Palacios may or may not have written...
I suggest you try "xxmc" if you have an nvidia card. Extended Motion Control is specifically created for nvidia cards that support multiple types of xvmc output.
Could you elaborate on what advantages xxmc has over xvmc?
I've found this document http://cvs.sourceforge.net/viewcvs.py/xine/xine-lib/doc/ README_xxmc.html?rev=1.3
=> /usr/share/doc/libxine1/README_xxmc.html