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microsoft / MixedReality-WebRTC

MixedReality-WebRTC is a collection of components to help mixed reality app developers integrate audio and video real-time communication into their application and improve their collaborative experience
https://microsoft.github.io/MixedReality-WebRTC/
MIT License
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Compatibility issue with newer Windows Holographic Versions(21H1)? #834

Closed SilverLive closed 2 years ago

SilverLive commented 2 years ago

My MR-WebRTC Application which worked on an old OS-Version of my HoloLens2 is now crashing straight after startup if I build it with ARM-compatiblility. On the other hand, if I build it with ARM64 compatibility, it does not crash but MR-WebRTC does not support ARM64.

Is there a way how to use MR-WebRTC on Windows Holographic Version 21H1 and higher(with ARM-compatibility) and what could be the reason behind the crash?

SilverLive commented 2 years ago

Now I was able to fix it. With one of my Provisioning-Packages I disabled the usage of microphone for mixedReality and it seems like access to those audio-informations is mandatory for MR-WebRTC even if you are not transmitting any audio (no audio media-line) via WebRTC. It had nothing to do with the OS-Version. Maybe this should be mentioned somewhere in the documentation Microsoft!

spacecheeserocks commented 2 years ago

I have seen this before, it's definitely documented somewhere but it's not completely obvious.

But yes, as you say, microphone is required to init the library, even if you don't plan to use it.