Question : How to export a camera render ?


I’m quite new to UE4 and I’d like to make a companion app that’s used as a joypad.

So i use my laptop to run a small server, it’s all going well, I can move my character and everything (it’s juste a simple basic scene), but I’d really like it if I could stream the video on the smartphone too, so that I can play my game even when i’m not around my computer.
Anyone knows how to export UE4’s video stream and how to render it on an Android phone ? I’ve been looking for weeks now but can’t find anything nearly close to that…

Thank’s in advance !