# Plugin Demo: Video Room

Want to learn more about the VideoRoom plugin? Check the Documentation.

### Demo details

This demo is an example of how you can use the Video Room plugin to implement a simple videoconferencing application. In particular, this demo page allows you to have up to 6 active participants at the same time: more participants joining the room will be instead just passive users. No mixing is involved: all media are just relayed in a publisher/subscriber approach. This means that the plugin acts as a SFU (Selective Forwarding Unit) rather than an MCU (Multipoint Control Unit).

Notice that this is the original VideoRoom demo, and uses a different PeerConnections per each subscription: if you want to test the new multistream support, instead, try the multistream VideoRoom demo instead. The two demos are interoperable, if you want to see how different subscription mechanisms are used on the same sources.

If you're interested in testing how simulcasting or SVC can be used within the context of a videoconferencing application, just pass a `?simulcast=true` (for simulcast) or `?svc=<mode>` (for SVC) query string to the url of this page and reload it. Notice that simulcast will only work when using VP8 or H.264 (or, if you're using a recent version of Chrome, VP9 and AV1 too), while SVC will only work if you're using VP9 or AV1 on a browser that supports setting the `scalabilityMode`. Besides, notice that simulcasting/SVC will only be sent if the browser thinks there is enough bandwidth, so you may have to play with the Bandwidth selector to increase it. New buttons to play with the feature will automatically appear for viewers when receiving any simulcast/SVC stream. Notice that no simulcast/SVC support is needed for watching, only for publishing.

To use the demo, just insert a username to join the default room that is configured. This will add you to the list of participants, and allow you to automatically send your audio/video frames and receive the other participants' feeds. The other participants will appear in separate panels, whose title will be the names they chose when registering at the demo.

Press the `Start` button above to launch the demo.

Local Video
Remote Video #1
Remote Video #2
Remote Video #3
Remote Video #4
Remote Video #5