Question about writing a codec

Unfortunately there's really no good resources; everything on MSDN deals with DirectShow. If you don't need VfW compatibility then that's fine (have fun writing the billion little methods it requires...), but if you do the only suggestion I have is to email someone who knows the ins & outs of VfW (e.g. Avery Lee) and ask for a reference.

you can use xvid, which is open source. the code should be quite clean, and you can ask specific questions on the xvid.org forum. it uses the vfw framework, but it's already there.. so u'll just have to modify the encodeing/decoding algorithms. cheers and good luck avi

Here's a you may want to look at.

Ah, finally some work on an Anime codec perhaps. There has to be a good method for this yet to be discovered.