OBS Studio

To stream the output of OBS into a v4l2loopback device for use as a virtual webcam input in Skype, jitsi or any other videoconferencing solution follow these steps:

modprobe v4l2loopback devices=1 video_nr=10 card_label="OBS Cam" exclusive_caps=1

To add the video4l2 sink to OBS install this plugin:

sudo apt install qtbase5-dev git clone --recursive https://github.com/obsproject/obs-studio.git git clone https://github.com/CatxFish/obs-v4l2sink.git cd obs-v4l2sink mkdir build && cd build cmake -DLIBOBS_INCLUDE_DIR="../../obs-studio/libobs" -DCMAKE_INSTALL_PREFIX=/usr .. make -j4 sudo make install

Source