Stuttering video 2

[jrc]

Dear Sam,

The stuttering issue is well described in this older thread:

Stuttering video

I thought I already posted this a while ago but can’t find it so probably not. There is very small stuttering in many video’s. You hardly see it, but I do. Specially when the camera is moving slowly. When the camera doesn’t move it’s not noticeable. I’m not sure if it’s only in HEVC content. Everytime I see it I think “write down which movie you’re watching” but then later on forget about it. I tried a while ago to record it happening so I can show you but it was very difficult to record. Do…

In February this year, I received 2x Vero 4k+, which replaced my older Vero 2.
I noticed the stuttering as well on the new devices, which was not the case with the Vero 2.
I decided to wait for the kodi 18 update, hoping this would solve the issue, which was not the case.

My setup:

• Vero 4k+
• 4 port USB 2.0 Powered Hub
• portable external hard drive (2TB)
• portable external hard drive (4TB)
• LG OLED55B6V

Adjust Refresh Rate enabled or sync frame rate did not help.
My media is stored on portable hard drives, Buffering is not an issue I think because it may happen with media files of smaller bit rate than those where it does not happen (8600 kb/s).

I managed to capture the stuttering with my smart phone, not sure to where i should upload for you (if you want to see this).

• media file: https://paste.osmc.tv/ubesesonud.vhdl
• logs: https://paste.osmc.tv/jajoqihibo

Not sure if it only occurs with 25pfs videos but the solution provided here:

Play 25 fps content at 24 fps?

Hi, I’m strongly thinking about picking up a Vero 4k, but have a question not specific to the Vero first; Is there any way to play back 25 fps content at 24 fps, without re-encoding/muxing first (essentially reversing “pal speedup”)? It can be done with mplayer via scaletempo, and I believe VLC supports it too, where they automatically scale the audio pitch to match the new playback speed. So, can osmc and/or the Vero 4k do this? Thanks, and sorry if this is posted in the wrong place or has …

dit not help.

Hopefully we can find a solution.

[fzinken]

@jrc

I noticed the stuttering as well on the new devices

Does it only happen with Videos encoded with XVID?

[jrc]

No, here is an other video file (not xvid):
https://paste.osmc.tv/karoruhiwu.rib

[bmillham]

@jrc

Adjust Refresh Rate enabled or sync frame rate did not help.

Your logs show Adjust display refresh rate: Off. Please set this to On start/stop. Also, you have the GUI set to 2160P. It should always be set at 1080P. Once you change those settings, try again and post a new log if the problem continues.

[jrc]

Solved! Thank you so much, should have asked this a long time ago.

It seems that setting the GUI to 2160p prevents the ‘adjust display refresh rate’ to work. Both settings were important.

Again, thank you so much!

[bmillham]

@jrc

Again, thank you so much!

No problem. You can also play with the ‘Whitelist’ settings to fine tune how resolutions are switched. But if you are happy with how it’s working now, it’s probably best to leave it alone.

[darwindesign]

@jrc

It seems that setting the GUI to 2160p prevents the ‘adjust display refresh rate’ to work.

FYI ‘adjust refresh rate’ without whitelist will go to a higher resolution but not a lower one. By setting the GUI to 2160p it forced the Vero to output everything at that resolution. I’m sure it was adjusting the frame rate just fine, but at 2160p.

[jrc]

@bmillham

But if you are happy with how it’s working now, it’s probably best to leave it alone.

Yes, right now I’m happy as it is

@darwindesign

I’m sure it was adjusting the frame rate just fine, but at 2160p.

I tested it again, when I only set the resolution back to 2160p (while keeping the ‘ajust display refresh rate’ set to ‘on start/stop’), stuttering is back.

[darwindesign]

@jrc

I tested it again, when I only set the resolution back to 2160p (while keeping the ‘ajust display refresh rate’ set to ‘on start/stop’), stuttering is back.

You misunderstand what I was saying. Your issue was stuttering with videos that were being forced to upsample to 2160p and the Vero not being quite up to that task. I was simply trying to correct your understanding of the issue. Setting the UI to 1080p does not change how the ‘adjust refresh rate’ works, it simply lowers how much files are upscaled.