[Warner306]

Hello,

since three weeks I try to get 4K HEVC content running on Kodi and now I'm trying to setup DSPlayer but a think I need some help.

my setup:
- Windows 7 Enterprise 64 Bit
- Kodi 16.1 with DSPlayer
- AMD Athlon 5350 (4x 2,05 GHz, Kaveri), 8 GB DDR3 1.600 MHz, 250GB Samsung EVO 850 SSD for Windows and Kodi (~550 MB/s)
- Radeon RX 460 with native support for h.264 and HEVC, driver version: Crimson v16.8.3 (the newest 16.9.1 beta doesn't work correctly)
- Desktop-Solution is about 1024x768 and Kodi solution 3840x2160px (automatic switching by kodi).

On Media Player Classic (64 bit and 32 bit) all runs fine, some 10 Bit HEVC files I testet cause less than 30% cpu usage, which is normal for windows and some programs at the background. MPC uses LAV splitter and LAV decoder with native DXVA2 rendering on the Radeon GPU.


But with DSPlayer (I used the tutorial here: Windows - HOW TO - Configure Kodi DSPlayer with LAV Filters, XySubFilter & madVR) I got 2 problems, or 1 problem with 2 alternatives...

1.) when using "DXVA native" option in LAV the video playback of HEVC files is invisible, screen stays black, but I can hear the audio and it's not stuttering
2.) when using "DXVA copy back" option then video playback is shown, but stuttering extreme (unwatchable), and cpu usage is about 90 to 100%

first screenshot is a h.264 AVC file with causes no problems, the rest is from the same HEVC file.



I tried different options like DSPlayer "fullscreen exclusive" on/off, different audio decoder, "refresh rate" controled by kodi on/off, some different drivers for the Radeon RX 460, I tried the same testfile located on HTPC harddisc (SSD is just for programs, a WD Black with 7.200rpm for some mediafiles) and located on a second computer via windows share (GBit ethernet, while playback the bandwith usage is about 9 to 15%).

But it seems like it's all the same: DXVA copy back causes stuttering, and native mode is with black screen.

So does anybody have any idea or maybe a solution for this?

Does this have anything to do with madVR processing settings? Are you using "Load from madVR active profile?" That way, DSPlayer and MPC-HC should have the same performance and use the same madVR settings.

Based on your screenshots, the madVR settings don't appear to be the same. This could be because the decoder queue is not filling in case #2. So the video is not being decoded properly.

The second shot shows the rendering stats are way above the movie frame interval. The first is way below the movie frame interval. This would imply madVR settings are too aggressive in the second case. But this could also be due to the lack of decoding. I'm not sure.

Also, try setting madVR rather than Kodi to do refresh rate switching.