Hello my friend,
take a look in youtube livestreaming!
Here is the documentation..
https://support.google.com/youtube/answer/2474026
If you know the simple stafs of HTML5 then this wanna be very easy to you! Take it step by step and when you think you have some difficulties you can always PM me for more help!
Some other articles that will may help you is :
http://www.livestream.com/forum/showthread.php?t=8018
...but i think I cover you! :)
Tell me if you want more help!