libx264 in libavcodec for mencoder

[evade]

I don't know how new this but I just noticed it.

I just updated my x264 and mplayer installs from svn and made note of the following line during configure.

Checking for x264 ... yes (in libavcodec: yes)

Now I can encode x264 with

mencoder -ovc x264enc -x264encopts

or

mencoder -ovc lavc -lavcopts vcodec=libx264


Does anyone know the advantages/disadvanges of either method?