X16/x26: RTSP URL since Firmware 5.4.0.44

Since the x16/x26 firmware 5.4.0.44, the integration protocol has changed a little and the URLs for the RTSP stream as well.

A total of 4 streams are possible.
These are as follows:
Stream1:
rtsp://ip-address-camera:554/stream/profile0
Stream2:
rtsp://ip-address-camera:554/stream/profile1
Stream3:
rtsp://ip-address-camera:554/stream/profile2
Stream4:
rtsp://ip-address-camera:554/stream/profile3

with user transfer:

Stream1:
rtsp://user:password@ip-address-camera:554/stream/profile0

Stream2:
rtsp://user:password@ip-address-camera:554/stream/profile1

Stream3:
rtsp://user:password@ip-address-camera:554/stream/profile2

Stream4:
rtsp://user:password@ip-address-camera:554/stream/profile3