In order to achieve this in a hybrid app, you will definitely need a custom Cordova plugin, that will do the process of capturing the video and then streaming it to the server. Unfortunately, at this stage there is no such plugin developed. So, you could be the first to do it :).
is an article on the same matter.
Further, you can also check this
article, where "How to Live Stream Video as You Shoot It in iOS" is nicely explained on the native side.
I hope this helps.
Share what you think about AppBuilder and Telerik Platform with us in our feedback portal, so we can become even better!