Yes, I tried using that for a good bit yesterday but could not get the muxer to operate without spewing INFO and WARN -level messages into the log like a flood.
H264 via RTP through isofmp4mux DTS/PTS issues - Application Development - GStreamer Discourse
That’s where I’m picking up this morning, trying to understand what the missing piece is here with ingesting H264 (and opus audio) via RTP and muxing it to a file as we had before with the qtmux -based muxer.