UV4L is a modular collection of Video4Linux compliant, cross-platform, user space drivers for real or virtual video input devices and other pluggable back-ends or front-ends. As stated in https://www.linux-projects.org/documentation/uv4l-core/
Questions tagged [uv4l]
28 questions
4
votes
1 answer
Using UV4L on Raspberry pi 3 with C310
I'm trying to get uv4l working with logitech camera 310. I go to the address XXX:8090/stream and it works for a few seconds then stops. To get it back i need to restart the pi. Also, it sometimes outputs these:
Message from syslogd@raspberrypi at…

innve89
- 101
- 7
4
votes
0 answers
Passing video frames for OpenCV-Python while streaming using WebRTC and UV4L driver
I have a raspberry pi setup with the uv4l driver and the native uv4l-WebRTC module. So far, I can see the video stream work fine on my browser, but what I want to do now is to be able to simultaneously stream the video to the browser and also pass…

trixr4kdz
- 324
- 2
- 12
3
votes
0 answers
ulv4-webrtc streaming from raspberry pi to iOS app via peer to peer connection
I have a raspberry pi that has a camera attached. I like to stream video to an iOS app via peer to peer connection.
I have uv4l installed on the raspberry pi but I don't know how to initiate a peer to peer connection from the iOS app.
The…

slingkid
- 101
- 2
- 6
1
vote
0 answers
Temporarily turn off uv4l stream to access video device from other application
I've set up uv4l on my raspberry pi 4 with HQ camera. The http streaming works fine. I'd like to run it 24/7, but I also need occasional livestreaming to Youtube using ffmpeg.
I start uv4l with the option -n videouv4l, so it creates a device…

vicmortelmans
- 616
- 6
- 16
1
vote
0 answers
Live Streaming from Raspberrypi using WebRTC
I want to have a server which will have live stream from the raspberrypi's.
I am expecting a low latency live stream from Raspberrypi with the help of WebRTC.
If there is any way I can achieve this flow please let me know the steps involved in this…

vishruti
- 445
- 4
- 20
1
vote
1 answer
Directly read stream from uv4l server on external node.js server in network
I'm trying to connect the uv4l-server stream directly to a node.js server.
I'd like to be able to read the stream with the node-webrtc package on an external device. I already have a websocket connection between the two.
I know i can get a stream as…

Gijs Beijer
- 560
- 5
- 19
1
vote
0 answers
WebRTC Peer to Peer only display local stream twice
I'm trying to learn how to use this new cool WebRTC API.
I'm following this tutorial, https://simpl.info/rtcpeerconnection/ but I don't understand how to get the second stream from my Raspberry Pi 3 running UV4L server…

Jack M.
- 1,831
- 5
- 24
- 36
1
vote
0 answers
Node.js as a WebRTC proxy
I have a Raspberry Pi 3 with a camera module. I've installed uv4l, and that gives me the ability to access the camera stream from browser by creating a WebRTC connection from the browser. However, I want to have an extra layer between the client…

ecdeveloper
- 2,777
- 1
- 22
- 16
1
vote
1 answer
Cannot get WebRTC to work with UV4L and janus
I'm trying to set up video stream via WebRTC from raspberry pi. I'm using a USB webcam, UV4L and Janus to accomplish the same. WebRTC is not working.
I've followed steps outlined here, except that I'm using uv4l instead of gstreamer. I've installed…

Jamboree
- 83
- 1
- 9
1
vote
2 answers
UV4L WebRTC demo seemingly not working, how to fix?
There is a demo which comes with UV4L demo OS for Raspberry PI, https://raspberry:8080/stream/webrtc. When i run it on a macOS computer (Firefox browser), and select that a screen is to be shared, it always says 'no suitable video device found!' and…

Mikhail Novikov
- 623
- 2
- 9
- 23
1
vote
0 answers
UV4L (RPi) - Conferencing with Janus WebRTC
I tried "Audio/Video Conferencing with Janus WebRTC Gateway" page. I left everything as default except I set the "Watch live audio & video from other participants" to "Yes". Then I joined the Janus video Room page at…

tgm17
- 11
- 6
1
vote
1 answer
Interpreting keypresses sent to raspberry-pi through uv4l-webrtc datachannel
I apologize if this doesn't make sense since I'm still a newbie with using a raspberry pi and this is my first time posting on StackOverflow.
I am making a web app that lets me stream video to and from a raspberry pi while also letting me send…

trixr4kdz
- 324
- 2
- 12
1
vote
1 answer
Desktop-Streaming(Live Desktop & Audio Streaming to the browser with WebRTC) Error
I wanted to load the xscreen driver. so I opened a terminal and typed the following commands:
$uv4l --driver xscreen --auto-video_nr --display :0 --framerate 10 --server-option '--port=5678'
This is the normal result:
raspberrypi ~ $ uv4l --driver…

Da Eun Cho
- 11
- 1
1
vote
2 answers
Running uv4l inside Docker Container - not registering device node
I'm trying to run uv4l inside a Docker container. This is a short description of the u4vl project:
cross-platform, user space drivers for real or virtual video input and output devices (with absolutely no external difference from kernel drivers),…

Jonas Follesø
- 6,441
- 7
- 41
- 54
0
votes
0 answers
Play WebRTC stream on WinForm C# application
I have a linux server running WebRTC stream server from a webcam using uv4l with the next command
uv4l --external-driver --device-name=video0
I can see it perfectly on a browser but I want to see it in a C# application, like a picturebox in the…
user5583316