Windows UWP ARM64 support

[michael-house]

As Unity itself is very inclusive of multiple platforms and architectures, ideally this plugin would be similarly inclusive.

Specifically, I'd like to use this package on an IL2CPP UWP ARM build, targeting the HoloLens 2.

I do see work on IL2CPP, but nothing for ARM. It's certainly possible as there are other efforts with this goal: https://webrtc-uwp.github.io/.

[karasusan]

I understand your needs.
Our team will discuss ARM support in the near future.

[rafcsoares]

I think other platforms like WebGL can gain support too.

The original WebRTC Implementation comes from browser so, i think, it is possible to add this kind of support without huge efforts.

[Juanmaramon]

@rafcsoares Yes, I'm agree that WebGL support can be really helpful for voice/video chat communication for web games/applications.

Are any efforts in this field?

Thanks!

[karasusan]

There is the priority order of the supporting platform. We will develop them in this order.
Do you have any ideas?

1. iOS
2. Android
3. Windows ARM64 (for Hololens2)
4. WebGL

[michael-house]

Really any order is great at this point, what's the timeline?

[nvanofwegen]

We are really looking forward to WebGL support. We are building teambuilding multiplayer games, where we ideally would have a linux server and WebGL clients connected using WebRTC. This enables us to keep using the games while every one can stay at home.

Currently we have use the WebRTC implementation provided by because-why-not but that one lacks Linux support, so we have to use windows servers. For another game we are trying out Photon, which seems to work but is relatively expensive.

[ArneBezuijen]

Agreed, glad WebGL is on the list. A (rough?) time indication along with the priority list would be great. Thanks!

[dyhmichail]

There is the priority order of the supporting platform. We will develop them in this order.
Do you have any ideas?

1. iOS
2. Android
3. Windows ARM64 (for Hololens2)
4. WebGL

I think Android should be prioritized because many other devices like AR Headsets use it.

[Juanmaramon]

There is the priority order of the supporting platform. We will develop them in this order.
Do you have any ideas?

1. iOS

2. Android

3. Windows ARM64 (for Hololens2)

4. WebGL

Well, iOS and Android are multithreaded platforms which let you resolve real time comunications problems with other solutions/protocols. But WebGL is not, this is why webRTC is a key component and play a big deal.

[karasusan]

I set milestones which releases every two months.
https://github.com/Unity-Technologies/com.unity.webrtc/milestones?direction=asc&sort=title&state=open

• 2.3 -> iOS
• 2.4 -> Android
• 2.5 -> Windows Arm64
• 2.6 -> WebGL

Of course, we do our best, but nobody knows the future. 😅

[karasusan]

We are developing additional platform support.
The next one is iOS.

[foungyu]

Hi @karasusan , thanks for working on different platforms support, I am looking for video/audio chat between iOS and Hololens 2, and Unity WebRTC is my ideal solution. Any workaround suggestion since Windows ARM64 is not supported yet? Thanks.

[karasusan]

@foungyu
Unfortunately, just now we do not have a workaround to use it for the Windows ARM64 platform.

[desto12]

@karasusan is there any chance to support hololens 2 to the end of year? Or can you give some estimated date of this release?
I would be very grateful for any information :)

[Thaina]

Do windows still require NVDIA? And what about just transferring text data? Can this be used on every platform just for text data?

[karasusan]

@Thaina

NVIDIA is not required by the WebRTC on Windows.
Transferring text data is supported as RTCDataChannel.
https://docs.unity3d.com/Packages/com.unity.webrtc@2.3/manual/datachannel.html

[Thaina]

@karasusan There was said in the limitation though?

https://github.com/Unity-Technologies/com.unity.webrtc#limitations

And how about webgl build of unity? Can it just at least open datachannel with webgl right of now?

[karasusan]

@Thaina

Thanks, This is wrong. I am going to remove this sentence.
And WebGL is not supported, unfortunatelly.

[Thaina]

@karasusan Thank you. That was unfortunate for webgl. I wish at least datachannel would be supported on webgl

[desto12]

Any news about UWP support? :)

[karasusan]

@desto12
We are pending UWP support because the chromium team is not testing WinRT on arm64 architecture continuously.
https://ci.chromium.org/p/webrtc/g/ci/console

And the second option is using WinRTC but this project looks not active. WinRTC contains libwebrtc, the version of libwebrtc m84 is too old. Currently, chromium team already shipped m93.
https://github.com/microsoft/winrtc

[karasusan]

I noticed this comment that says about the announcement in the README of the MR-WebRTC repo.
The strategy of Microsoft would be allocating resources to Microsoft Mesh instead of supporting WebRTC.
microsoft/MixedReality-WebRTC#414 (comment)

[GMyjak]

@karasusan
Hi, are there any updates on HL2 support? I see that arm64 is still not included in chromium CI, but do you have any informations if they will be working on it? If not, do you know who would have such information (someone from chromium team)?

[karasusan]

@GMyjak
No particular progress has been made since the last time.

Microsoft must have maintain chromium for MS Edge, and also MS Edge supports ARM64 platform. However, MS doesn't published the source code of MS Edge, unfortunately.

note:
This ticket exists over 3 years.
https://bugs.chromium.org/p/chromium/issues/detail?id=893460

[predictcare]

Hi @karasusan , sorry but i don't get the connection between Microsoft and the WebRtc implementation for Arm64 Platform. Can you explain us some more ? And, what we, the community can do to help you.
I'm also interested in an Arm64 (or Arm, as well) implementation for Hololens2 of the WebRtc package.

[karasusan]

@michael-house
Can we change this issue title to Windows UWP ARM64 support ?

[desto12]

@michael-house Can we change this issue title to Windows UWP ARM64 support ?

Permission granted :)

[desto12]

Hello, is there any news about Holo 2 support?

[dl4mmers]

I would also like to share my interest in UWP support (for HoloLens) in the future since Mixed Reality WebRTC isn't devolped anymore and it doesn't support ARM64.

[kannan-xiao4]

As mentioned in the thread below, the priority is still low.
https://forum.unity.com/threads/unity-render-streaming-status-update-q4-2021.1215801/

[karasusan]

memo: WRS-143

[desto12]

Hello and sorry for asking again I know, that it is on roadmap and that it is independent of you, but maybe there are some fresh news?

[kannan-xiao4]

@desto12
The situation has not changed since #15 (comment).

[Braineratt]

Id like to share my interrest in this too, we are currently stuck with Mixed Reality WebRTC aswell.

I'm guessing there are a lot more developers in this situation, that are more or less waiting to find a replacement.

[Jerem-35]

Hello, any news regarding a potential support of UWP? Thanks.

[wh569860630]

When will uwp platform push be supported？？

[zeedyBOI]

Is there any plan to support this on near future? Support for Hololens 2 would be great

[kijz]

also stuck because of dropped Mixed Reality WebRTC, any update to timeline would be greatly appreciated 🙏

[dudziakl]

I'm also waiting for Unity's support of WebRTC for UWP. As a workaround, you can use any WebRTC website that allows for screen sharing and audio streaming. Open it with Edge browser in the background of your Unity app. You can open the browser from Unity with Windows.System.Launcher.LaunchUriAsync() or you could try new WebView2 support to have it embedded https://learn.microsoft.com/en-us/microsoft-edge/webview2/get-started/hololens2 I didn't try it yet but it looks promising.
I can confirm that I was able to share my video stream from HoloLens which includes holograms through webRTC chat created by Gather (https://app.gather.town/) or Whereby (https://whereby.com/) simply by using the option Share my desktop. Don't share the camera because it will stream RGB camera without holograms. Then you can run any app you like. To close connection you have to get back to the browser and disconnect there. It is not very convenient but is better than nothing.

[ragavendranbalaCES]

Hi @dudziakl , I have tried your workaround. but I can't able to share the video with Holograms inside webview for unity. There is no window to select for screensharing.

[sierpinskid]

I'm also interested in UWP support. Thanks!