[IDEA] Dynamic priority process

[Fred]

Nice work, I really like the idea. Have not been able to test it yet.
I think 5 levels is a bit too much. Personally I would only do two levels to keep it simple, (very) low level when screensaver is on, high level (7) when it's off. You wan't maximum smoothness when screensaver is off imo.

The latest download package already is set to lower priorities so they can run while XBMC is running. Don't really see why and how to implement dynamic priorities for this. Only thing I can think of is to higher the priority when a web-interface of one of the download packages is accessed, so this interface feels smoother. That would be really awesome but no idea how easy to implement.