The vfw "Cartoon mode" (which I've found is not the same as what xvidcore considers Cartoon Mode) is *supposed* to create more n-blocks, and I guess therefore more n-frames, but it doesn't seem to
work. The core has these two functions seperate and considers vop_cartoon exclusively as Cartoon Mode. At least, that's what the comments indicate :|
So I'd like to say that it doesn't drop frames, but I'm really not sure at this point.