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39 lines
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932 B
Markdown
39 lines
No EOL
932 B
Markdown
---
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title: "Loopback Webcam Device with V4l2"
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date: 2020-05-25T23:49:08-04:00
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draft: false
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tags: ["Audio-Video"]
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medium_enabled: true
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aliases:
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- /blog/fakewebcam
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---
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In Linux you can create a fake webcam by making use of the `v4l2loopback` kernel module.
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To install,
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```bash
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sudo apt install v4l2loopback-dkms
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```
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If you already had an existing module, remove it so we can customize it.
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```bash
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sudo modprobe -r v4l2loopback
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```
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Then create the file `/etc/modprobe.d/fakecam.conf` and add the following line
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```
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options v4l2loopback devices=1 video_nr=20 card_label=fakecam exclusive_caps=1
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```
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The value of `video_nr` must be larger than the amount of cameras in your system. I wouldn't have more than 10 webcams plugged into my system, so I set it to 20.
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Then load back up the kernel module
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```bash
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sudo modprobe v4l2loopback
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```
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Now when you open up Chrome, Skype, etc, you should see a new device labeled "fakecam". |