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Remove OSX code signing from teams application for virtual cam support in OBS

Open broadcast software is a popular broadcasting software for Windows,Linux and Mac os. The freature of heaving a virtual camera that can be used in a teams demonstration is very valuable. Unfortunately Teams for Mac OSX doesn’t support virtual camera’s and therefore OBS cannot be used to stream to an vritual camera under Mac OSX.

There is one option under Mac OSX to get this working. As a work around you can strip off code signing of the Teams application that does the trick. Before you start you start make a copy of the original Teams application under Mac OSX. In my example I copied the original Teams application to TeamMark and used the below commands to strip off the codesigning.

sudo codesign --remove-signature "/Applications/TeamMark.app"
sudo codesign --remove-signature "/Applications/TeamMark.app/Contents/Frameworks/Microsoft Teams Helper.app"
sudo codesign --remove-signature "/Applications/TeamMark.app/Contents/Frameworks/Microsoft Teams Helper (GPU).app"
sudo codesign --remove-signature "/Applications/TeamMark.app/Contents/Frameworks/Microsoft Teams Helper (Plugin).app"
sudo codesign --remove-signature "/Applications/TeamMark.app/Contents/Frameworks/Microsoft Teams Helper (Renderer).app"

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