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OBS
Open Broadcaster Software - short OBS - is a free and open source software for video recording and live streaming. For webcams and their configuration see the webcams entry.
Plugins
There are several plugins made by non-obs developers. The plugins introduce different and new features.
On Linux devices using Wayland the additional package wlrobs is needed.
Virtual Camera
By using a virtual camera the views of OBS can be used as an additional camera output, making it possible to add effects and more to the video feed of the camera.
Installation (Linux)
First of all V4L2 needs to be set up. This guide assumes it is set up according to the section in the V4L2 entry. Afterwards the virtual camera can be started.
Background Removal
Background removal removes the background of a camera image stream. The removed background can be replaced with color key filters.
Installation
Made by royshil the GitHub page describes
various possibilities to install the background removal for OBS on different systems.
On Linux systems background removal is often contained in a package named obs-backgroundremoval
or similarly.
Afterwards the background removal can be added as a filter on a input source.
Troubleshooting
This section focusses on various errors that can appear by using OBS.
Output Failed: If you are using NVENC or AMD encoders, make sure the video drivers are up to date
This error does occur most of the time when trying to start OBS' virtual camera. If all the drivers are up to date there is a chance that it is caused by a bug or error in the code of V4L2. A possible fix is described in a corresponding section of the V4L2 entry.