What streaming protocols do browsers support for WebM

Dear HN,

Any ideas on what protocols browsers support for streaming <video>?

I have seen only video tags of the form <video src=http://server/video.webm> which implies to me http running over tcp, which suffers from backoff and retransmit in response to packet drop

I had assumed there would be a way to use real streaming protocols (ie rtp/rtsp/rtmp) instead but the HTML5 spec doesn't say anything about it

Also setting up a streaming server and trying to connect by each browser has not proved straightforward.

For what it's worth, my results are that streaming protocols never work with the <video> tag. I am asking the community in case I am mistaken

Many Thanks