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Progressive Networks Publishes Real Time Streaming Protocol


Progressive Networks published on their Web site the Reference Implementation Source Code for the Real Time Streaming Protocol (RTSP), a proposed open standard for control and delivery of real-time media over the Internet, developed by Progressive Networks and Netscape Communications. The source code for this Reference Implementation is available for download from the Progressive Networks Web site . It includes C code for both the RTSP Client and Server and will allow developers to experiment with building RTSP applications.

RTSP was announced by Progressive Networks and Netscape and 38 leading companies, including Apple Computer, Cisco Systems, Silicon Graphics, Sun Microsystems, Macromedia and Narrative Communications, on October 14, 1996. It defines the connection between streaming media client and server software and provides a standard way for clients and servers from multiple vendors to stream multimedia content. Continued widespread support for this unified standard will help ensure interoperability and give application developers more flexibility in developing robust multimedia applications. The first draft of the protocol specification, RTSP 1.0, was submitted to the Internet Engineering Task Force (IETF) on October 9, 1996.

RTSP complements the International Telecommunications Unions H.323 specification and is designed to deliver rich multimedia broadcast experiences while helping to minimize the overhead of multimedia delivery. RTSP takes advantage of Internet and Intranet infrastructure improvements, such as IP Multicast, RTP and RTCP. Once the Open Standards Process is completed, the affinity between H.323 and RTSP will make it easier for the industry to bring the worlds of telephony, conferencing and multimedia broadcasting together.


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