The binding does not need the USERNAME:PASSWORD@ in the urls, although it should handle it if you do. Best to remove those so that the password is only in 1 place for when you change the password it is then quicker to update it.
It should be very easy to get it going, just add a generic camera and add those URLS in the feilds for them. If you’re having issues try looking at the DEBUG or TRACE level logs, how to do that is written at the very top of the ipcamera documentation.
Put your RTSP url into the FFmpeg Input field.
Snapshot url you have one, so get rid of the ffmpeg entry and put it in there.
Remove the RTSP from the mjpeg url and replace it with your mjpeg url.