[donabi]

just a simple question:

which codecs does the VDPAU-feature scale/decode and which not?

i've read, that mpg2 isn't featured yet?

[althekiller]

h264 and vc1. mpeg2 isn't currently due to lack of overlay support required for DVD menus.

[spiff]

since when was scaling and decoding even remotely the same?

[donabi]

when decoding mpg2 or xvid: which rendering "engine" works in background, when you are using linux-xbmc with vdpau enabled?
and one more, maybe silly, question: does it downscale?
1080 to 720?

i'm going to build a zotac-ion system and was asking myself, if the picture quality could get even worse (compared to the 720p xbox).

[althekiller]

We render with OpenGL with all other formats and scale to w/e the output resolution is you've chosen.

You're worrying about nothing and asking well addressed questions. Please take some time to research a subject before getting your panties in a bunch.