ReStreaming a stream with username and password

[tsikis]

Hello there i have a problem i have a stream from a DVR that i need to stream online, while i can access it through my ip or noip, i need a way to embed it on my website without giving people the ability of playing with my dvr because even the guest user can change the camera to look and some other options that i dont want to be accessed so i need to just broadcast the stream.
The problem is i try to embed and a lot of other things the last 2 weeks but the problem i got is how to pass the username and password.
Thanks