RTSP - PowerPoint PPT Presentation

rtsp real time streaming protocol l.
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RTSP

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RTSP

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  1. RTSP – Real Time Streaming Protocol Presented by Manoj Sivakumar

  2. Overview • Motivation • RTSP - Architecture • RTSP – Features • Description of Working

  3. Motivation • Internet Video On Demand • Internet VCR • Requirements like pause, record etc • Integration with web architecture • A new application level protocol for media files

  4. RTSP - Architecture • Media file download

  5. RTSP – Architecture ..contd • Meta Files

  6. RTSP – Architecture ..contd • RTSP

  7. RTSP - Features • “rough” synchronization (fine-grained) • virtual presentations = synchronized playback from several servers • load balancing using redirection at connect, during stream • supports any session description • device control  camera pan, zoom, tilt • caching: similar to HTTP

  8. RTSP - Features • Retrieval: • first, get presentation description • Unicast • multicast, client chooses address • multicast, server chooses address (NVOD) • independent of stream file format

  9. RTSP - Features • Methods • OPTIONS • SETUP • ANNOUNCE • DESCRIBE • PLAY • RECORD • REDIRECT • PAUSE • SET PARAMETER • TEARDOWN

  10. RTSP - Example

  11. RTSP - Time • Normal Play Time (NPT) : seconds, microseconds • SMPTE timestamps: seconds, frames • Absolute time ( for live events)

  12. References • www.cs.columbia.edu/~hgs/teaching/ais/slides/RTSP.pdf