(2017-03-31, 11:05)spencerjford Wrote: for sound normalization, i use ReClock and Enable sound Compressor "normal"

within dsplayer you can select reclock as your audio output.

so you can skip the audio from fddshow. and go with the first way of you trying to do things.

(2017-04-04, 13:46)tingtong5 Wrote: Hi all,

I am using Kodi Dsplayer 16.1 / Madvr / Reclock on a 4 GHz 8 core AMD cpu and Geforce GTX1070 GPU with 64 bit Win7 Ultimate installed.

When playing 4K 24 fps content (blu-ray folder or H265 mkv container) I am not able to get smooth playback. I noticed that GPU goes up to 96% and all 8 CPU cores to almost 100%. I have set kodi to use DVXA2 acceleration but it seems it still tries to do it in software.

I also tried Kodi Dsplayer (32 bit) 17.1 but it did not solve my issue.

What are the things I need to do to get smooth video playback of 4K content?

B.t.w. 1080p playback works fine up.

Thanks for helping me out, I spent several days already on this issue but am stuck now.

Ronald

(2017-04-04, 16:00)_Andy_ Wrote: As you use DSPlayer Kodi doesn't decode the movie so you need to set LAV Filter to use HW acceleration. Open the LAV video settings and make sure HW acceleration is enabled for h264 and HEVC.

(2017-04-04, 16:00)_Andy_ Wrote: As you use DSPlayer Kodi doesn't decode the movie so you need to set LAV Filter to use HW acceleration. Open the LAV video settings and make sure HW acceleration is enabled for h264 and HEVC.

(2017-04-04, 19:04)tingtong5 Wrote:

(2017-04-04, 16:00)_Andy_ Wrote: As you use DSPlayer Kodi doesn't decode the movie so you need to set LAV Filter to use HW acceleration. Open the LAV video settings and make sure HW acceleration is enabled for h264 and HEVC.

It turns out that these were already enabled in the LAV video settings.

I did some testing using "O" to let kodi display cpu load and with CTRL-J to let Madvr show dropped frames.

Now I can clearly see that CPU load is not the issue , its on average below 30% for each core during playing 4K content.( It was openhardware monitor that put me on the wrong track by looking at max values after playing some 4 K content.)

However madvr is dropping quite a lot of frames. When choosing jinc (instead of NNEDI3 or NGU) for chroma upscaling, the situation improves a lot and no more obvious stuttering, still some dropped frames every few seconds however.

I was under the assumption that GTX1070 is capable of doing better then this. Any other ideas of what I might check in order to improve performance ?

By the way , I am using Kodi 16.1 at the moment, is there any reason to upgrade to 17.1 with respect to 4K playback?

(2017-04-04, 19:04)tingtong5 Wrote:

(2017-04-04, 16:00)_Andy_ Wrote: As you use DSPlayer Kodi doesn't decode the movie so you need to set LAV Filter to use HW acceleration. Open the LAV video settings and make sure HW acceleration is enabled for h264 and HEVC.

It turns out that these were already enabled in the LAV video settings.

I did some testing using "O" to let kodi display cpu load and with CTRL-J to let Madvr show dropped frames.

Now I can clearly see that CPU load is not the issue , its on average below 30% for each core during playing 4K content.( It was openhardware monitor that put me on the wrong track by looking at max values after playing some 4 K content.)

However madvr is dropping quite a lot of frames. When choosing jinc (instead of NNEDI3 or NGU) for chroma upscaling, the situation improves a lot and no more obvious stuttering, still some dropped frames every few seconds however.

I was under the assumption that GTX1070 is capable of doing better then this. Any other ideas of what I might check in order to improve performance ?

By the way , I am using Kodi 16.1 at the moment, is there any reason to upgrade to 17.1 with respect to 4K playback?