Ask Question. Filter by. Sorted by. Tagged with. Apply filter. When using ffmpeg as producer I cannot see v4l2loopback device in chrome I am able to see my v4l2loopback video device in chrome when using this command to produce a video stream: gst-launch KLowe 1 1 gold badge 4 4 silver badges 9 9 bronze badges. Vamshi Surabhi 1 1 silver badge 13 13 bronze badges. How do I load a kernel module without root?
I'm making a program which requires a kernel module. Command "sudo", "-S", "modprobe", "v4l2loopback" Chromium freeing v4l2 buffers when closing tab We have an app that streams from a camera device to a v4l2loopback and two consumers on that stream.
One is a custom app and the other is a Chromium tab. Our custom app, opens the v4l2 device, asks I followed the official instructions and compiled from git the v4l2loopback KiraraVS 4 4 bronze badges. This is after installing packages in Manjaro Some context: Recently, I have read about create a virtual video device in Linux and then mock its output from an image or video file.
Angel Fraga Parodi 5 5 silver badges 17 17 bronze badges.After creating those. Step 2: Describe your environment v4l2loopback version: [ Pd is a graphical programming language and computer music system.
I am able to stream it live by piping gphoto2 into vlc, but no applications recognize it as a webcam. Here are my ideas:. For that I have installed v4l2loopback-dkms package from AUR, and v4l2sink. VideoLAN software is licensed under various open-source licenses: use and distribution are defined by each software license.How to make OBS output to a virtual webcam in Linux
I want to be able to have a virtual camera to have my manipulated video so that I could use applications that can use a camera source to have my manipulated video stream.
V4l2loopback chrome. While I'm specificaly showing the process for doing in on Discord, the same thing should apply for Skype as well. To make operation a bit simpler I suggest you create a script file to load the loopback module and start the ThermApp. Fruitnanny is a code name for a DIY geek baby monitor.
Using a DSLR provides a number of benefits over an off-the-shelf webcam, most notably higher image quality, ability to finely adjust the frame of an image zoom, wide angleand adjust the depth of field. So I gave up on that. Download official VLC media player for Windows. On the edge of despair opening sites that I've already gone through I found v4l2loopback module. C; this module allows you to create "virtual video devices" normal v4l2 applications will read these devices as if they were.
Permissions to access video devices e. The package tested with Motion is v4l2loopback-dkms. I also got a window with the message: "Could not install the v4l2loopback kernel module through apt-get.
Using Blender, webcam and another capture device EasyCapalso I get smooth playback of both devices. The examples for using the module are pretty simple, in fact by. Vegan Grocery Haul. I can open my virtual device from VLC : gst-launch. Webcamoid is a webcam app focused on providing all major features required by power users with a very simple and intuitive interface.
Package list: prefix v.However, a more reasonable example, which includes setting an audio codec, setting the pixel format and both a video and audio bitrate, would be:. This is because the latter ones are advanced codecs which output the same visual quality video at about half the bitrate of H. Sweet huh! They do take way longer to encode though and are not as widely supported as H. Hardware accelerated encoding. Resize video to UHD 30fps. The commands we have to add for this are:.
We can use video filters to cut the bottom half of a stereoscopic top-bottom video to turn it into a monoscopic video:. The above command seeks to 1. Concatenate two videos. Concatenation is not possible with all video formats, but it works fine for MP4 files for example. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account.
You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email. Skip to content Close Menu Home About. I have the latest version of ffmpeg installed in Ubuntu Concatenate two videos Concatenation is not possible with all video formats, but it works fine for MP4 files for example.
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Already on GitHub? Sign in to your account. Hi, thanks for your previous reply. I have seen the bug 40 but it was not working for me. I need to inject a video for a local streaming that i will see as buildin video camera using chrome. I have seen the bug 40 40 but it was not working for me. I think I may have just run into this, but it could just be a misconfiguration on my part.
I can open the virtual devices in VLC, but Chrome doesn't provide any options. I am also encountering this problem, and following umleaute 's directions did not resolve it. The virtual device is visible in other applications like mplayer, but not in Chrome stable or Chromium. If not can we re-open this issue? Same issue for me. I am using Ubuntu It works fine with firefoxbut chrome can't detect the device.
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Questions tagged [v4l2loopback]
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Work fast with our official CLI. Learn more. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. I've been using it to add streaming capabilities to an application by the means of hooking GStreamer into the loopback devices. So run this before starting the build again:.
The depmod -a call will re-calculate module dependencies, in order to automatically load additional kernel modules required by v4l2loopback. The call may not be necessary on modern systems. See below for distribution-specific build instructions or when using frameworks like DKMS. We use optional third-party analytics cookies to understand how you use GitHub.
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Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am trying to create a virtual camera in Chrome using v4l2loopback where the incoming video is H via RTP. For example:. I had thought perhaps this is to do with the video formats and perhaps the correct caps needed to be set through v4l2loopback. This looks like a bug in gstreamer or v4l2loopback.
It is somehow related to how variable frame rate is handled. In gstreamer's terms this means that frame rate is variable.
According to v4l2sink 's source code it seems that it feed this same frame rate to v4l2loopback kernel module but v4l2loopback does not understand zero frame rate. This is only hypothesis, still need to check if this is what really happens. To workaround this bug you can fix frame rate. Just add videorate element to the first pipeline:.
Learn more. Asked 6 years, 7 months ago. Active 5 years, 1 month ago. Viewed 6k times. For example: gst-launch What would the solution be?
Ross Ross Ok, just tried this. With the test source it works and there is output. It doesn't work. Can you please provide output of your second pipeline?
It seems that there is some problem with the video format. Sure, here it is: gist. Active Oldest Votes. Now, note the caps for v4l2sink in the debug log of the first pipeline.
Thanks — this works. I'll try to investigate this further and contact to developers. Sign up or log in Sign up using Google.Released: Jun 1, View statistics for this project via Libraries. Install ffmpeg preferably with your systems packagemanager and v4l2loopback. Adjust the fvd. You then should see a red goldfish getting blurred and unblurred. This Module relies heavily on v4l2loopback and ffmpeg-python. The fish. Jun 1, Jan 20, Jan 16, Download the file for your platform.
Project links Homepage. Maintainers flashs. Project description Project details Release history Download files Project description VirtualVideo VirtualVideo allows you to write simple programs that feed images to a v4l2loopback device. Prerequisites v4l2loopback ffmpeg Guide Install virtualvideo with: pip3 install --user virtualvideo Install ffmpeg preferably with your systems packagemanager and v4l2loopback. Example showFish.
Project details Project links Homepage. Download files Download the file for your platform. Files for virtualvideo, version 0.
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