4K playback issues

[byakuya32 24]

I can play back 1080p on my local network but as soon as I got to play 4K I have stuttering and buffering issues with direct play and it will not even attempt to transcode. I checked the network interface and it is only using 25 mb and disk usage is fine. I am using 7200rpm drive a amd 5700G cpu and a M2000 for transcoding when needed. I also have 40gb of ram. Here is the log. Please advise.

embyserver.txt

[byakuya32 24]

4K files play just fine over the network with a video player on my pc It's just through emby that its an issue.

[Luke 42077]

HI, have you tried lowering the in-app quality setting to force a full transcode?

[byakuya32 24]

5 minutes ago, Luke said:

HI, have you tried lowering the in-app quality setting to force a full transcode?

yes I get the message giving up too many errors when I lower the quality again only in 4k. I also forgot to mention that the OS of the server is Debian 11. The network interface and disk usage is no where near being a bottleneck.

Edited December 8, 2021 by byakuya32

[Luke 42077]

Can we see an ffmpeg log example from doing that? Thanks.

[byakuya32 24]

Here you go

ffmpeg-transcode-bf2980a6-0b74-46eb-85ef-ae086e86c626_1.txt

[byakuya32 24]

I dont know but the files do have HDR 10 but I guess it is possible that the HDR could be causing the issue. I just find it strange I can driect play from my PC without issues through VLC.

[byakuya32 24]

hardware_detection-63774500969.txtHere is the hardware detection log. I don't know if that helps.

[Luke 42077]

Have you tried a file without hdr?

[byakuya32 24]

all of them have hdr so not possible but after it is encoded with handbrake it seems to work as the file is much smaller, but if I do that I loose the 10 bit colour depth It does keep the HDR though, so I think its just do to the 4K files being 60 to 80GB. 

Edited December 20, 2021 by byakuya32

[byakuya32 24]

On 12/20/2021 at 8:47 AM, Luke said:

Have you tried a file without hdr?

I was able to downscale to 1080p without hdr and no issues so it is entirely the file size of 4k or the 10 bit colour depth.