Obs-mac-virtualcam: [Support] DAL plugin not loaded and not shows up in any apps

[czhowl]

After install the package, OBS has the option to start virtual camera, but none of the video apps(tested in Quicktime, Photobooth, Zoom, Chrome) have the option of OBS virtualcam. I tried remove /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin and reinstall with no luck. I also didn't get any messages in Console.app by searching obs-mac-virtualcam.

To Reproduce
Steps to reproduce the behavior:

1. Install OBS 25.0.8
2. Install obs-mac-virtualcam-3ca8f62-v1.2.0.pkg
3. See error

Desktop

• OS version: macOS Catalina 10.15.5
• Application (if applicable): Quicktime, Photobooth, Zoom, Chrome
• Virtualcam version: 1.2.0
• OBS version: 25.0.8

[gxalpha]

Uhhhmmm... Did you restart your computer?
I don't think I've seen that one before 😄

[czhowl]

Yes I have tried reinstall and reboot on different versions of packages and none of them works.

[czhowl]

I also tried coremediaio-dal-minimal-example and that works on my system.

[danielsegan]

I'm running into the same issue. Worked fine a couple of days ago. No system changes that I'm aware of. No crashes/errors either. Virtual Camera just not showing up as a camera option anymore.

OS: 10.15.5
OBS: 25.0.8
The current release of Virtual Cam

[danielsegan]

In my case at least this is confirmed to be a library validation failure. I'm trying to use it in Microsoft Teams:

Library Validation failed: Rejecting '/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam' (Team ID: 62G85M9ZN5, platform: no) for process 'Teams(2482)' (Team ID: UBF8T346G9, platform: no), reason: mapping process and mapped file (non-platform) have different Team IDs

Initially, it appeared to be a global issue (missing camera) but It's clear that it's occurring in all apps which try to use the camera.

Here are the ones I tested so far:

Microsoft Teams
Microsoft Edge (Chromium)
Apple Photo Booth

[gxalpha]

I think we need to differentiate here:
If you get nothing in none of the apps (including Google Chrome), that is a problem we don't know anything about yet.
If you do get something, for example error messages in Console.app or a working virtual camera in Google Chrome (@danielsegan please test this) you'll have a Library Validation problem, to fix this see https://github.com/johnboiles/obs-mac-virtualcam/wiki/Compatibility#apps-dont-allow-dal-plugins

[grantwall]

Seeing the same problem with OBS virtualcam not showing up in Microsoft Teams as well as DIscord. Tried the DAL signing tips but no luck. Here's the error on a fresh OBS install

Error loading /Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin/Contents/MacOS/AkVirtualCamera: dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin/Contents/MacOS/AkVirtualCamera, 265): no suitable image found. Did find: /Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin/Contents/MacOS/AkVirtualCamera: code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin/Contents/MacOS/AkVirtualCamera) not valid for use in process using Library Validation: mapped file has no Team ID and is not a platform binary (signed with custom identity or adhoc?)

Cannot find function pointer akPluginMain for factory <CFUUID 0x7fcb9510bcc0> 41764B79-7320-5643-616D-363462697473 in CFBundle/CFPlugIn 0x7fcb9510b440 </Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin> (framework, not loaded)

Error loading /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam, 262): no suitable image found. Did find: /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam) not valid for use in process using Library Validation: mapping process and mapped file (non-platform) have different Team IDs /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: stat() failed with errno=1

Cannot find function pointer PlugInMain for factory <CFUUID 0x7fcb9510c830> 35FDFF29-BFCF-4644-AB77-B759DE932ABE in CFBundle/CFPlugIn 0x7fcb9510c030 </Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin> (bundle, not loaded)

After trying the signing method with the plist key Discord crashes on launch, with the following console logs:

Cannot find function pointer akPluginMain for factory <CFUUID 0x7f8797a09a90> 41764B79-7320-5643-616D-363462697473 in CFBundle/CFPlugIn 0x7f8797a0b8c0 </Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin> (framework, not loaded)

Error loading /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam, 262): no suitable image found. Did find: /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam) not valid for use in process using Library Validation: mapping process and mapped file (non-platform) have different Team IDs /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: stat() failed with errno=1

Cannot find function pointer PlugInMain for factory <CFUUID 0x7f8797a09e70> 35FDFF29-BFCF-4644-AB77-B759DE932ABE in CFBundle/CFPlugIn 0x7f8797a0bd70 </Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin> (bundle, not loaded)

Error loading /Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin/Contents/MacOS/AkVirtualCamera: dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin/Contents/MacOS/AkVirtualCamera, 265): no suitable image found. Did find: /Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin/Contents/MacOS/AkVirtualCamera: code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin/Contents/MacOS/AkVirtualCamera) not valid for use in process using Library Validation: mapped file has no Team ID and is not a platform binary (signed with custom identity or adhoc?)

Cannot find function pointer akPluginMain for factory <CFUUID 0x7fc5a0c263b0> 41764B79-7320-5643-616D-363462697473 in CFBundle/CFPlugIn 0x7fc5a0c25a80 </Library/CoreMediaIO/Plug-Ins/DAL/AkVirtualCamera.plugin> (framework, not loaded)

Error loading /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam, 262): no suitable image found. Did find: /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam) not valid for use in process using Library Validation: mapping process and mapped file (non-platform) have different Team IDs /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: stat() failed with errno=1

Cannot find function pointer PlugInMain for factory <CFUUID 0x7fc5a0c284d0> 35FDFF29-BFCF-4644-AB77-B759DE932ABE in CFBundle/CFPlugIn 0x7fc5a0c26720 </Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin> (bundle, not loaded)

obs-mac-virtualcam(DAL): HardwarePlugIn_Teardown self=0x1133ed768

[grantwall]

After a bit more testing, the plist seems unnecessary. The following two commands fixed both Discord and Teams.

sudo codesign --remove-signature '/Applications/Discord.app/Contents/Frameworks/Discord Helper (Renderer).app/Contents/MacOS/Discord Helper (Renderer)'

sudo codesign --remove-signature /Applications/Microsoft\ Teams.app/Contents/Frameworks/Microsoft\ Teams\ Helper.app/Contents/MacOS/Microsoft\ Teams\ Helper

[DavidTNguyen]

I have similar setup as @czhowl. The following command fixed it for me. This is based on the instruction from the repo's wiki

sudo codesign -f -s - /Applications/zoom.us.app

[chesterweirdo]

After a bit more testing, the plist seems unnecessary. The following two commands fixed both Discord and Teams.

sudo codesign --remove-signature '/Applications/Discord.app/Contents/Frameworks/Discord Helper (Renderer).app/Contents/MacOS/Discord Helper (Renderer)'

sudo codesign --remove-signature /Applications/Microsoft\ Teams.app/Contents/Frameworks/Microsoft\ Teams\ Helper.app/Contents/MacOS/Microsoft\ Teams\ Helper

Thanks that solved MS Teams for me. Had restarted but still no luck until running this command.

[searope]

I have the same issue of not seeing the virtual webcam in Hangouts, Zoom and Teams.

sudo codesign --remove-signature /Applications/Microsoft\ Teams.app/Contents/Frameworks/Microsoft\ Teams\ Helper.app/Contents/MacOS/Microsoft\ Teams\ Helper

and

sudo codesign -f -s - /Applications/zoom.us.app

did the trick for me. Thanks @grantwall and @DavidTNguyen !

I wonder how could I fix Hangouts?