webcam-filters

Add filters (background blur, etc) to your webcam on Linux.

Video conferencing applications tend to either lack video effects altogether or support only a limited set of capabilities on Linux (e.g. Zoom [1], Google Meets [2]).

Goal here is to provide a virtual webcam via v4l2loopback with a common set of filters that can be used everywhere.

Usage

Passthrough (no-op):

$ webcam-filters --input-dev /dev/video0 --output-dev /dev/video3

Blur background:

$ webcam-filters --input-dev /dev/video0 --output-dev /dev/video3 --background-blur 150

Dependencies

Other than the Python dependencies that can be automatically installed by Pip, there are a few system dependencies that require manual attention.

v4l2loopback

v4l2loopback kernel module is required to emulate a virtual webcam. See your distro's docs or v4l2loopback on how to install and set it up (e.g. https://archlinux.org/packages/community/any/v4l2loopback-dkms/).

You'll probably want to create at least one loopback device (that's persistent on boot):

$ sudo tee /etc/modprobe.d/v4l2loopback.conf << "EOF" # /dev/video3 options v4l2loopback video_nr=3 options v4l2loopback card_label="Virtual Webcam" options v4l2loopback exclusive_caps=1 EOF $ sudo modprobe v4l2loopback $ v4l2-ctl --device /dev/video3 --info

Gstreamer

Installation

You can either use pipx or pip. Pipx is recommend to keep dependencies isolated.

Latest stable:

$ pipx install --system-site-packages webcam-filters $ # Or $ pip install --user webcam-filters

Latest pre-release:

$ pipx install --system-site-packages --pip-args='--pre' webcam-filters $ # Or $ pip install --user --pre webcam-filters

Git:

$ url="git+https://github.com/jashandeep-sohi/webcam-filters.git" $ pipx install --system-site-packages "$url" $ # Or $ pip install --user "$url"

[1]Zoom desktop client supports background blur as of version 5.7.6. Zoom on web does not.
[2]Google Meets supports background blur only on Chrome.

GitHub

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