If Dahua sourced, URL should be:
rtsp:/<username>:<password>@<ip_address>:<rtsp_port>/cam/realmonitor?channel=<channel_number>&subtype=<stream_type>
where port = 554, channel = 1, subtype = 0 for main stream and 1 = for sub stream
Examples:
With authentication, main stream
rtsp:/:
[email protected]:554/cam/realmonitor?channel=1&subtype=0
Without authentication, sub stream:
rtsp:/192.168.1.108:554/cam/realmonitor?channel=1&subtype=1
NOTES:
1) Be sure to place 2 "/" after "rtsp:" as forum won't allow 2 to be displayed consecutively
2) In Camera's webGUI, insure streams are enabled and configured as required.