I have an app which I have uploaded on the web now It is an E-learning application which requires video/audio or other multimedia streaming features e.g. It will have video chat and virtual classroom feature.
Now the thing is that I have heard from, someone, that If I don't have an SSL certificate on my website I won't be able to stream data online such as voice calls, virtual classroom, audio streams, etc.
Generally yes you should get an SSL certificate to live stream videos, audios, etc using WebRTC especially if your user uses Google Chrome then he won't be able to experience the full functionality of your product as google cares a lot about security.