What is a simple software for mixing IP channels?

Question

CCTV

Hello Habr, it became necessary to broadcast about 10 cameras in one stream and switch them at will, so that the picture changes from one camera to another. The 2nd day I'm looking on the Internet, I can not find anything suitable. Does anyone know what software to use for this? Oh yes, I forgot to say, cameras work exclusively from RTSP streams :)

Answer 1

If there is a desire to collective farm, openmcu-ru solves your problem.
It has a web face and an RTSP connector

Answer 2

You will have to write it yourself or use a ready-made Chinese registrar that can "zero channel"