Is it possible to seamlessly switch between 2 WebRTC inputs to an RTMP push output?

[devnoname120]

Question

Use case: I have two clients streaming WebRTC in the same room and I need to output a single RTMP push stream. I want to be able to use an API to switch the input from one WebRTC client to the other live without interrupting the RTMP stream and without a black screen while switching from one to the other.

Is it something that would be possible with SRS? How long would SRS need before it actually performs a switch from one WebRTC input to the other? Would the output RTMP push stream not be interrupted when doing the switch? Thanks!