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Real-Time Streaming Protocol

A network control protocol designed for use in entertainment and communications systems to control streaming media servers.

The Real-Time Streaming Protocol (RTSP) is a network control protocol designed for use in entertainment and communications systems to control streaming media servers. The protocol is used for establishing and controlling media sessions between endpoints. Clients of media servers issue VHS-style commands, such as play, record, and pause, to facilitate real-time control of the media streaming from the server to a client (Video On Demand) or from a client to the server (Voice Recording).

The transmission of streaming data itself is not a task of RTSP. Most RTSP servers use the Real-time Transport Protocol (RTP) in conjunction with Real-time Control Protocol (RTCP) for media stream delivery. However, some vendors implement proprietary transport protocols. The RTSP server software from RealNetworks, for example, also used RealNetworks' proprietary Real Data Transport (RDT).

RTSP was developed by RealNetworks, Netscape, and Columbia University, with the first draft submitted to IETF in 1996. It was standardized by the Multiparty Multimedia Session Control Working Group (MMUSIC WG) of the Internet Engineering Task Force (IETF) and published as RFC 2326 in 1998. RTSP 2.0 published as RFC 7826 in 2016 as a replacement for RTSP 1.0. RTSP 2.0 is based on RTSP 1.0 but is not backward compatible other than in the basic version negotiation mechanism.

Key Terms

client
communications systems
ietf
network control protocol
real time streaming protocol
realnetworks
rfc
rtsp
server
use entertainment

Additional Resources

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Acronymn

RTSP

Synonymns

Real-Time Streaming Protocol
(none found)

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Sources & Credits

Last modified on May 6 2020
Content adapted from Wikipedia
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