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cpu usage when gpu is working?

S

substance12

Senior member
if i'm using mpc to watch an mkv video... what should my cpu usage hover around? i just got a new video card and i was thinking that the gpu would do all the work but it feels like the cpu is still working hard.

also, what do i need to do to insure that x/h 264 playback is done on the gpu? i've been doing some searches but it's rather a mess.
 
Yeah it was a mess when I was setting it up too. It's not as simple as just using MPC. You have to do some stuff with disabling the filters that come with MPC and enabling other filters to allow GPU acceleration... hopefully someone will come in and tell you how since I'm not too sure on it. Once it does get enabled properly you should see very low usage. I get ~1-4% watching a 720p MKV scaled up to 1080p
 
I think i got it to work. i don't understand it though. first i got a later version of mpc home cinema. i guess the one that comes with the latest cccp codec isn't the latest. 2nd i changed playback output on mpc to vmr9 renderless (don't know what this does).

i clicked on additional check boxes in the internal filters section. again, i wasnt sure if clicking was disabling or enabling.
 
Under output use EVR, not vmr9. Under external filters click add and add the ffdshow video decoder. You have to "add" it so you can unclick the checkbox so MPC doesn't use it
 
well i've been playing around with it more. EVR doesn't work. when I select that, gpu isn't used. vmr9 renderless works. what is this?
 
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