You will probably need to use javascript to achieve this in Axure. Seems like folks have gotten this to work, as I’ve seen threads on this in the past. I’m not sure if it gives you just the video stream or an inline frame with the native camera “chrome”…
I searched for just “cam” and came up with a number of threads:
https://forum.axure.com/search?q=cam
This one seems like a good start:
https://forum.axure.com/t/video-in-dynamic-panel/51903?u=mbc66
If you do a general Google search or search on Stack Overflow site for things like “javascript mobile camera” and “javascript android camera stream” and/or “javascript webcam stream” (or “camera feed” ?) you will probably find a good solution that you can then inject into Axure. There are two basic approaches to do this. One is to add the javascript code in an Axure Share plugin (easier), the other is embedding the javascript into your Axure file via “javascript injection” (harder). You can search this forum with those terms to find out more. You can also learn the basics of Axure Share plugins here:
https://www.axure.com/support/reference/axure-share-basics#plugins