Using Video 4 Linux 2 ​

Video 4 Linux 2 (v4l2) is an essential toolkit for working with and managing video devices in Linux. If you've used a webcam, then you've already used v4l (probably without even knowing).

The v4l2loopback project provides a loadable kernel module to create v4l2 devices from running application instead of from video cards (as would be exposed by your webcam).

Commands ​

v4l2loopback-ctl: Control v4l2 loopback devices v4l2-ctl: Create and control v4l2 devices

ADDITIONAL RESOURCES ​

• v4l2loopback Wiki with Gstreamer Examples
• https://www.thegeekdiary.com/v4l2-ctl-command-examples-in-linux/