You need to decode, encode or do some processing stuff on multimedia streams, files or whatever mencoder can read? You want to implement your solution in C# or some other .net language? Here you are! This is an assembly which wrappes calls to e.g. reencode some source with a other codec.
VLC is a free and open source cross-platform multimedia player and framework that plays most multimedia files as well as DVD, Audio CD, VCD, and various streaming protocols. This is a helper library to support Vlc videos as textures to be used in graphical engines like the Delta Engine.