How to distinguish "RTP over TCP" from "RTP over HTTP"?

dear all: I wanna ask some q开发者_运维问答uestions about streaming protocol.

1.If I get video streaming use RTSP the video streaming will be sent add RTP header,but why some video streaming also add RTP header via cgi command?

2.I could distinguish "RTP over TCP" from "RTP over UDP",but what differences between "RTP over TCP" and "RTP over HTTP"

I'm confuse ~

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i think you're confusing RTP over HTTP with RTSP over HTTP ( and therefore RTP too ): see http://developer.apple.com/quicktime/icefloe/dispatch028.html for more info.