Some media platforms do not support simultaneous multiple remote-party video, but generate
a single video stream which switches between dominant speakers. This interface is the only
representation of remote participant video in group calls on such a platform.
A dedicated video channel which video stream carries the current active speaker video.
When the active speaker changes this channel switches to the new speaker video.
Active (dominant) speaker in a multiparty call.
Some media platforms do not support simultaneous multiple remote-party video, but generate a single video stream which switches between dominant speakers. This interface is the only representation of remote participant video in group calls on such a platform.