EVR much slower than VMR9?

Sep 16, 2013 at 1:08 PM

the WPF Media Kit with the EVR Custom Presenter seems much slower than the VMR9 (default renderer of WPF Media Kit).
My machine (core i7 3,5Ghz, Radeon HD5450) can render 12 1080p streams 25 FPS with VMR9 WPF Media Kit. Switching to EVR 4-5 HD streams are the limit without frame drops.
The CPU usage seems not to be the limit.
The EVR Custom Presenter was build with optimizations on and release.

Rendering 1080p Streams with Media Player Classic in EVR Custom Allocator works well. I can't see any difference between EVR and VMR9 with MPC-HC.
Anybody an idea ?

Oct 16, 2013 at 1:47 PM
Personally I prefer VMR9, EVR tends to add a second or so delay when loading a video.

I have yet to compare CPU usage between the two.