H264 streams with packetization-mode=0 cannot be routed with UDP since
packets are too big. Inbound streams with packetization-mode=0 are
blocked by the server since v1.19.0 but this caused compatibility
issues with some cameras.
The server is now able to receive such streams with TCP, and
automatically remuxes them in streams with packetization-mode=1, which
can be routed freely.