Just wanted to report that I got the Amcrest ProHD 1080 (IP2M-841) sorta working with SmartTiles.
http://USERNAME:PASSWORD@IPADDRESS:PORT/axis-cgi/mjpg/video.cgi?&subtype=1
The &subtype=1 is optional to point it at the substream. I’ve got the primary stream set to much higher resolution/bitrate and h.264 encode for better local recording.
I do have one problem though. I have to login to the camera with the device the dashboard is running on before the video stream will show. I quickly work around that right now by having a webpage link tile with the exact same URL as the MJPEG video tile. Tap that once, see video, go back to dashboard and all is kosher. If anyone has an idea to get around that–let me know.