AM
pid-mux: an input option to append any PID into the input. for example append audio stream into the RTSP stream from cameras. the donor stream should be in udp.
example usage: rtsp://192.168.88.8/stream_1#mux=127.0.0.1:10000&mux_pid=304
where 127.0.0.1:10000 - is UDP stream (same as UDP-input, but without udp:// prefix),
304 - is PID from this UDP stream