Hi,
Is there different addresses for connecting to the main/substream?
Where can I find them?
The video on my phone (using tinycam) has some glitches and stuff so I want to use the substream.
But I don't know how to connect to it, or how these work when setting up in an app.
The main and sub streams are multicast on the same IP address. I don't know anything about tinycam, but the Amcrest app has a simple icon (labeled "HD") that lets you choose "HD" or "SD" (High Definition or Standard Definition), which are the main and sub streams.
I don't know much about it, but check your camera's config page, under Network, select Multicast. It should show the default ports for the main and sub streams (40000 and 40016). I'm not sure how you might use that information to your advantage, but I remembered seeing it when exploring my camera's settings.