Summary

This Recommendation defines a transmission protocol for multimedia webcasting over TCP/IP networks. The protocol consists of a presentation description and session control. The presentation description is based on the XHTML format, and it specifies properties of the media such as URI, content type, content size, accounting information, and so on. First of all, a terminal receives the presentation description, and sets up in accordance with the description. Then the terminal starts transmission of the media in accordance with the session control, which is based on HTTP. The session control supports starting the session, retrieving the media data and ending the session. In addition, a remote camera control scheme is also defined in the session control. Since the protocol defined in this Recommendation is similar to the WWW browsing system, problems related to the UDP/IP streaming such as the Firewall issue are resolved by this Recommendation, and the implementation will have less affect.