[HeresJohnny]

FIY:

I already got in touch with the developer of Wavpack, David Bryant. He's a really nice and accessible guy and he already submitted code to ffmpeg for a Wavpack DSD decoder some while ago. Unfortunately, that community has very strict guidelines for code style (to put it nicely) so it was rejected solely on the grounds of that. Plus, going through the comments I got the impression that no-one fully understoond the implications and inner workings of what needed to be done. So the current status is that David was rebuffed and needs some real motivation to give it another go, just to re-format the code with proper function names and what-have-you.

For those interested in the details or even in helping out, you can read more HERE.