obs-v4l2sink VS obs-gstreamer

There a temporal workaround but it's quite old and honestly I don't know if it still works on modern systems. It's basically to use this plugin https://github.com/CatxFish/obs-v4l2sink If you manage to install it it should give you the ability to choose what of your loopback devices should be the virtual cam. Good Luck!

well the easiest way I can think of is just using the OBS virtual camera thing (Unsure if they released it officially on Linux, but there is a plugin for that [1]).

Use chroma key to remove the background and add a video there, possibly on a loop.

[1]. https://github.com/CatxFish/obs-v4l2sink

Trying to install this: https://github.com/CatxFish/obs-v4l2sink

In case the built-in filters are not sufficient or unavailable, the workaround would be to install OBS. In OBS, set up your webcam as a source, and set up a view that has all the effects that you want. Then set up a virtual webcam: if you're using Windows, using OBS Virtualcam; if you're on a Mac, using the "Start Virtual Camera" button built into OBS; and if you're on Linux, using the v4l2loopback kernel module and the obs-v4l2sink plugin. You can then configure Zoom to use this virtual webcam, which has all the extra effects that you configured.

It also links a plugin thing for linux https://github.com/CatxFish/obs-v4l2sink and mentions that something might be in development for macOS

PS: Seems the feature is now part of OBS 26.1! I have not seen it in my version. I'll look further. Thank you for your reponse!

Try using OBS studio along with something like v4l2sink.

I'd recommend you to look for obs-vaapi and obs-gstreamer as plugins to utilize GPU encoding on OBS. On Flatpak they're available as OBS plugins you can install alongside the Flatpak version of OBS.

I wanted to start experimenting with GPU recording on my Ubuntu machine and saw this video from GloriousEggroll demonstrating VAAPI working better than ever using the obs-gstreamer plugin, which would now be the standalone obs-vaapi plugin. I'm running Ubuntu 22.10 and the latest stable version of OBS from the ppa. As instructed, I checked the VAAPI version on my system with vainfo, got this.

On Nvidia you'd use obs-gstreamer (it's the same but obs-vaapi has only the vaapi part, not the entire implementation) because vaapi isn't supported by Nvidia.

Plus, since my Crysis 3 gameplay I'm using obs-gstreamer which fixed the crappy ffmpeg performance while recording with hardware encoding.

Try obs-gstreamer plugin... I'll write the easy way tomorrow if you don't know how to compile and install it, but if you can read then it's fine

Use obs-gstreamer https://github.com/fzwoch/obs-gstreamer

The video description is a bit misleading. You need this OBS plugin in addition to installing gstreamer-vaapi.