setting an video source

[DeveloperTitarenko]

can anyone please advise me how to set a video source? in my app, if the user has at least 2 cameras connected (on laptop, like default and third-party cam) i should provide him a choice which videosource he wants to use

[mozmorris]

This demo should help: https://codepen.io/mozmorris/pen/KKwdOPO