How to write on a virtual webcam in Linux?

Question

I want to capture a video from a real webcam, apply filters with openCv and write the filtered video on a virtual webcam, to stream it on web.

I don

Answer 1

You can also use a combination of v4l2loopback, OBS Studio and obs-v4l2sink.

Use OBS Studio to capture video from your device, then obs-v4l2sink is a small plugin that writes output into /dev/video* of your choice.

https://github.com/umlaeute/v4l2loopback/wiki/OBS-Studio

https://github.com/CatxFish/obs-v4l2sink