kuya-carlo/v4l2loopback

Project ID: 188796

Description

Tools to create Video4Linux loopback recording devices.

This package provides v4l2loopback, which creates "virtual video devices" accessible through the Video4Linux API. Applications can read from these devices as if they were regular video devices, but the video content is generated by other applications instead of hardware capture devices.

Maintainer: kuya-carlo (106532351+kuya-carlo@users.noreply.github.com) Version: 0.15.1 (updated from danielkza's original packaging)

Upstream source: https://github.com/v4l2loopback/v4l2loopback
Packaging repository: https://github.com/kuya-carlo/v4l2loopback-fedora (if you have one)
Forked from: https://copr.fedorainfracloud.org/coprs/danielkza/v4l2loopback/

Use cases:

Virtual webcams for streaming/video conferencing
Screen recording and sharing
Video testing and development
OBS Studio virtual camera output

Installation Instructions

Installation

Enable the COPR repository and install:

# Enable the COPR repository
sudo dnf copr enable kuya-carlo/v4l2loopback

# Install the package
sudo dnf install v4l2loopback

The installation will automatically pull the v4l2loopback-dkms package and build the kernel module for your current kernel.

Basic Usage

# Load the module (creates /dev/video* devices)
sudo modprobe v4l2loopback

# Check that loopback devices were created
v4l2-ctl --list-devices

# View device details
v4l2-ctl --all

# Manage loopback device settings
v4l2loopback-ctl

Configuration

To load the module automatically at boot:

echo "v4l2loopback" | sudo tee /etc/modules-load.d/v4l2loopback.conf

To create multiple devices with custom settings:

sudo modprobe v4l2loopback devices=2 video_nr=10,11 card_label="Virtual Camera 1","Virtual Camera 2"

Troubleshooting

If the module fails to build, ensure you have kernel-devel installed: sudo dnf install kernel-devel
After kernel updates, DKMS should automatically rebuild the module
Check DKMS status: dkms status v4l2loopback
Remove and reinstall DKMS module if needed: sudo dkms remove v4l2loopback/0.15.1 --all && sudo dkms install v4l2loopback/0.15.1

Active Releases

The following unofficial repositories are provided as-is by owner of this project. Contact the owner directly for bugs or issues (IE: not bugzilla).

Release	Architectures	Repo Download
Centos-stream 10	aarch64 (0), ppc64le (0), s390x (0), x86_64 (0)	Centos-stream 10 (0 downloads)
Centos-stream 9	aarch64 (0), ppc64le (0), s390x (0), x86_64 (0)	Centos-stream 9 (0 downloads)
EPEL 10	aarch64 (0), ppc64le (0), s390x (0), x86_64 (0)	EPEL 10 (2 downloads)
EPEL 8	aarch64 (0), ppc64le (0), s390x (0), x86_64 (0)	EPEL 8 (1 downloads)
EPEL 9	aarch64 (0), ppc64le (0), s390x (0), x86_64 (0)	EPEL 9 (1 downloads)
Fedora 41	aarch64 (0), ppc64le (0), s390x (0), x86_64 (0)	Fedora 41 (0 downloads)
Fedora 42	aarch64 (0), ppc64le (0), s390x (0), x86_64 (2)	Fedora 42 (2 downloads)
Fedora eln	aarch64 (0), ppc64le (0), s390x (0), x86_64 (0)	Fedora eln (0 downloads)
Fedora rawhide	aarch64 (0), ppc64le (0), x86_64 (0)*	Fedora rawhide (0 downloads)