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The Real Time Streaming Protocol (RTSP) RTSP is industry standard Internet Application level Protocol. RTSP is a framework for the delivery & transmissions.

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Presentation on theme: "The Real Time Streaming Protocol (RTSP) RTSP is industry standard Internet Application level Protocol. RTSP is a framework for the delivery & transmissions."— Presentation transcript:

1 The Real Time Streaming Protocol (RTSP) RTSP is industry standard Internet Application level Protocol. RTSP is a framework for the delivery & transmissions of: Multicast data streams Multicast Radio, text & Video

2 RTSP Features RTSP works in conjunction with RTP to deliver streaming video, audio and text content. RTSP maintains a server state during transmission unlike HTTP. Server-client architecture. Avoids shortfalls/limitations in HTTP. RTSP provides synchronisation of events. Enhancement of HTTP functions.

3 RTSP Features ( Cont) Real time or near real time system. RTSP stream control working with RTP as the media transport protocol. Internet standard Device control – e.g camera zoom remotely Load balancing using bidirectional connection. Virtual presentations, synchronised playback from multiple servers.

4 RTSP Functionality Client - server & server- client Multimedia-demand for continuous mode. Multicast operation & address. Independent stream file format or combinations of subsets. Ability to mix media, audio, images, video & text as part of a stream.

5 RTSP Applications Streaming of multi-media via Internet Video conferencing & lectures. Broadcasting of entertainment. Remote digital editing Voice mail

6 RTSP example session TCP connection= RTSP session= session maintained. One TCP connection per session bidirectional. UDP= Multicast, low latency & live events.

7 RTSP Diagram

8 RTSP Methods OPTIONS- obtain available methods SETUP- Establish transport ANNOUNCE- alter description of media object. DESCRIBE- get low level description of media object. PLAY- start playback. RECORD- Start recording PAUSE- suspend delivery, keep state SET_PARIMETER- device or encoding control TEARDOWN- remove state.

9 RTSP Limitations Bandwidth: 64 – 128 kb/s for talking heads, 1.5Mb/s for movies Quality: packet loss, predictability Reliability: makes CATV look good Billing Infrastructure: pay-per-view? Cheap Receivers: shouldn’t cost more than set- top box


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