Allow moderators to set permissions for audio, video and screensharing in webinar

[theDyingMountain]

For creating webinars I need the possibility for the owner/moderator to disable microfon, camera and screensharing for all participants.
I found the following line in the PR Announcement from January 2018

• Fullcontrol - the moderator can invite, mute and remove participants as needed.

But I didn't found any possibility to do that in Version 3.2.

[florianwgnr]

Ideas from #1003:

Next to the "standard" calling functionality there should be a "webinar" support, meaning, you can create a private/public conversation with an option to block video/microphone/screensharing for all (guest) users, so they can only follow the owners/moderators video feed and can communicate via chat.

Blocking other peoples video/microphone is necessary so no one can "steal" your show by talking and putting themselves infront of every participant.

Maybe some extra buttons to disable the different sharing options for not-moderators would be a good idea.

[brtptrs]

Having a "start webinar" option in the Talk front-end would be great. Adding the possibility to use software like OBS as a source would be awesome.

Steps to set it up could be:

1. In talk I create a webinar/conference room. A token of some kind is generated that I can use to set up a connection

2. In OBS I set up an event stream to my talk-room using the webinar room I created, authenticating via the token.

[brtptrs]

I've since discovered that OBS provides a virtual camera output feature. This output can be selected in talk as camera input. This solves one part of this problem for me.
The main issue however remains. It should be possible to create talk rooms where participants can only join with disabled microfon, camera and screensharing.

[merlin-tc]

We would love to have this feature as well.
The reason why I'd like to use Nextcloud over others is because we can host it internally and most of our webinars are inside our network using our LAN infrastructure.

Everyone already has a Nextcloud account as well.

[EliterScripts]

The problem is that the virtual camera output feature is not officially supported by OBS, as far as I can tell. Also, it doesn't appear that there is a nice interface for selecting different cameras and microphones in the web browser, you have to go into Chromium settings.

Also, this feature does NOT work on a Ubuntu Linux box, because the virtual camera mod for OBS is designed specifically for Windows, as it is an executable.

What would it take to get this feature implemented? What even IS the protocol that OBS uses?

[EliterScripts]

Wait, is this getting off-topic? There is already a "webinar" feature. Now, we're talking about OBS. Should I create another issue, specifically for OBS?

[nickvergessen]

Should I create another issue, specifically for OBS?

Sounds like a good idea.

OBS is now discussed in #3182