[FEATURE] 2160p (4K) Support?

[mog3n]

This is what my docker compose looks like. However I can't seem to get it to render at 2160p. It seems to max out at 1080p@30.

I am using a sufficiently powerful VM. I'm using an 8 core with 16gigs of ram on AWS. This is mostly for movie nights so a buck or two per stream is not a huge problem.

Thanks!

[m1k1o]

Available screen resolutions are limited there: https://github.com/nurdism/neko/blob/master/.docker/files/base/xorg.conf

You could be theoretically able to modify it and adding custom resolutions. Though I have never tested that.

[nurdism]

I don't recommend this, but it is doable... encoding and streaming a 4k stream would need a large amount of bandwidth and a very beefy CPU

[mog3n]

Got it, thank you! Another question. Is it possible to manually set the bitrate?

[m1k1o]

Not in any convenient way. Your only possibility is to replace existing gstreamer pipeline with your custom. It can be done via NEKO_VIDEO environment variable. In order to do that, knowledge about gstreamer and its pipelines is needed.

[Kyrex]

Got it, thank you! Another question. Is it possible to manually set the bitrate?

I would like to know more about this too. A 720p@30 stream isn't even possible on normal ADSL internet with give or take 15mb/s download speed. It's just a stuttery mess.

Just like rabb.it had it, an SD and HD button at the bottom would be perfect, I assume it would change between a lower and higher bitrate for one client, not affecting the other clients.

[m1k1o]

It could be posibble with making two pipelines. SD and HD, letting user to decide. But this would introduce even higher CPU usage on server. Even now it is pretty high.

[Kyrex]

A bit off-topic, but also kinda not since I want to experiment with the configs:
Since I'm not familiar with docker at all, if I want to edit one of the files and/or configs, like the xorg.conf file you pointed out, how can I do that? I can't seem to find them

[m1k1o]

You are able to copy that file (either from inside of container using ˙docker cp neko:/etc/neko/xorg.conf xorg.conf˙ or from this repo) and then mount it as volume using -v "${PWD}/xorg.conf:/etc/neko/xorg.conf".

Or in docker-compose:

    volumes:
      - ./xorg.conf:/etc/neko/xorg.conf

[JCBird1012]

When I was playing around with #107, I tried to bump it up to 4K in the xorg.conf and I'm pretty sure I got my modesets right but it didn't appear in the front end. I never troubleshooted why.

[m1k1o]

Maybe because frontend is showing only modelines with 30 or 60 fps, others are simply ignored. I was able to get decent 4k video (only on my localhost ofc.) ranging from 8fps to 20fps. Even tried 60fps 8K resolution but I didn't get smooth picure.