DirectShow playback causes 100% CPU and 20 - 25 FPS?

sofakng

I'm trying to use DeoVR on my desktop with my Oculus Rift CV1. The PC is an i7-8700k with a GTX 3080.

If I don't enable DirectShow the playback is perfect. However, if I enable DirectShow it's begins to stutter and drops to around 20 - 25 FPS.

I'm using LAV Filters v0.75 (with DXVA12 enabled in video decoder). If I use MPC-HC (with external LAV filters) it plays perfectly with 10 - 15% CPU only.

Are there any logs or anything I can check with DeoVR? I'm trying to use DeoVR so I can also use SVP (which is not enabled while testing this).

Here is the Player.log: https://pastebin.com/s5KbhKRj

Tony

sofakng this might help

https://forum.deovr.com/d/206-hevc-5k-directshow-shuttering

sofakng

Thanks very much for the reply. The problem seems to be playing very large videos (8K) using DXVA2/D3D11 copy-back.