MOD EDIT: This version of the plugin is currently deprecated and should not be used with OBS Studio v25. Please use this version instead: https://obsproject.com/forum/resources/obs-virtualcam.949/
We on the OBS team thank CatxFish for their hard work on this plugin.
This plugin provides a directshow Output as a virtual webcam .
How to use:
Output:
1. Selecting Tools -> VirtualCam
2. Press start button and close diailog
3. Open your 3rd party program and choose 'OBS-Camera' as a Video input
Filter:
1.Add a filter to the source you want to output to the camera
2.Choose a sink camera target then press start button
3.If this camera is not occupied , the start button will change to stop button .
4.Open your 3rd party program and choose 'OBS-Camera' as a Video input.
How to Install without installer:
1.Go Github Release to find zip file
2.Unzip OBS-VirtualCam2.0.1.zip and put it to your obs-studio install folder
3.Run CMD as Administrator and register 32bit directshow source
ex: regsvr32 'C:Program Files (x86)obs-studiobin32bitobs-virtualsource.dll'
4.Do it again to register 64bit directshow source
ex: regsvr32 'C:Program Files (x86)obs-studiobin64bitobs-virtualsource.dll'
Register failed during installation
It's usually due to dependency reason . There's a chance you need to install visual studio 2017 redistributable package (2013 if the plugin version is 1.x.x ), also the directshow interface needs swscale-4.dll and avutil-55.dll in you obs install directory.
FAQ:
Is it necessary to install 32bit version?
Yes, there are still many 3rd party programs use 32bit directshow interface for the reason of compatibility.
Why resolution and framerate are not same as OBS output Setting?
If you open OBS and Start Virtual Output before using your 3rd party software, the virtual webcam will set the obs setting as a default setting .Otherwise the default setting of virtual webcam will be 1920x1080 @ 30fps
Is it possible to output with portrait resolution (like 1080x1920) ?
It depends on your 3rd party software , it might reject recommended resolution.
If your software is compatible , you just need to set the obs output setting to the resolution you want.
How to prevent the drop frame issue?
Maybe your PC is too busy ,try to set more buffer.
Is there a virtual microphone ?
This plugin provide a directshow audio source which can't be recognized as microphone , only some programs like VLC can use it.
Does this plugin support other platforms?
There's a Video4Linux version . But it only contains the sink part , you have to use it with v4l2loopback.
And there's no plan on mac version.
Is the driver-layer virtual device ( for microphone) development still going?
No, there are two reasons why I decide to make it pending.
1. The development is mess and painful, an error could cause blue screen.
2. Even you finish the code , you still need a paid certificate called EV code signing to distribute your driver.
Known issues
- Skype UWP edition don't accept directshow interface , please use Skype desktop edition.
- Unity Application can't get image from virtualcam , please useregister batch(reg_path.reg) in release page to manually add dummy device path .(note: The registry conflict with skype desktop , you can use unreg_path.reg to remove it)
Donate
If you like my work on this plugin , you can donate via Paypal.me

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