How to implement a Camera(onvif) supporting RSTP on own WebPage?

Question

I cant manage to have a view of my Camera on my WebPage!

I tried to implement the Camera with html Code, which didnt Worked!

<div>
          <video width="640" height="480" controls>
            <source
              src="rtsp://192.168.0.103:554/onvif"
              type="application/x-rtsp"
            />
            Your browser does not support the video tag.
          </video>
 </div>

This is how it looks like. Then I tried to do it with VLC Media Player. It worked, but the question came, how could I implement the view from VLC Media Player on my Webpage? I googled some things, and I found a tutorial to stream the View of VLC Media Player(Didnt worked). Then I tried some other websites, but they want a lot of money, LOL. So I gave up