I’m pretty sure that they multiplex the video into a single stream and tell the clients decode the relevant ones. The server can also do some detection on the d

I’m pretty sure that they multiplex the video into a single stream and tell the clients decode the relevant ones. The server can also do some detection on the device to flag a stream as the focus stream without having to be able to decrypt the data the server can also tell the clients to what bitrate encode their transmition depending on the number of participants and which clients are in focus at the time e.g. if you aren’t talking send a 480p stream if you are send a 1080p one.