Q: Does/will NPVR support MMCSS

[siliconaudio]

I run a multi-track recording app that supports MMCSS (Multimedia Class Scheduler Service) which is supposed to help playback by giving processor-priority to the application and prevent other operations from causing glitching. For what it's worth, it does seem to almost eliminate glitching when running at low latency.

Sometimes things happen in the background on my PVR that cause GBPVR to stutter. I wonder if implementing MMCSS would prevent this?

Are there any plans to implement MMCSS in NPVR?

[mvallevand]

Isn't that Media Foundation and not DirectShow?

Martin

[sub]

Having now read the Microsoft MSDN pages on the topic, it doesnt sound like the sort of thing the application would directly use, but instead the decoders and video renderers could call it to request their sample delivery threads get a higher scheduler priority. The EVR renderer is apparently calling it, so you'd already get some use out of it in NPVR/GBPVR. I couldnt tell you wether other components are. I also wouldnt be able to make them call it (I have no visiblity of their internal threads).