RTSP is a protocol for controlling streaming media. It uses RTP for data delivery and allows VCR-like controls like play, pause, etc. RTSP sits on top of RTP and handles session setup and control, while RTP handles actual media data transport. RTSP messages are similar to HTTP but maintain state between requests and responses unlike stateless HTTP. RTSP enables streaming media playback by requesting media from a server and receiving it as a continuous stream.

1. Real Time Streaming Protocol Prasanti Adusumilli Swathi Borra

18. Streaming from a streaming server to a media player

20. RTSP Media Player-Server Sequence Chart User Interface RTSP Player RTSP Server OpenURL SETUP response1 PLAY response2 audio PAUSE response3 Quit TEARDOWN response10 Activate RTP Activate RTP

26. Streaming in Mobile Environments

27. RTSP Methods Description Retrieves the description of a presentation Posts the description of a presentation Retrieves the value of a parameter Queries the available methods Streams delivery is halted temporarily Starts sending data Starts receiving data Informs to connect another server location Specifies the transport mechanism Requests to set the value of a parameter Stops the stream delivery and frees the resources Method DESCRIBE ANNOUNCE GET_PARAMETER OPTIONS PAUSE PLAY RECORD REDIRECT SETUP SET_ PARAMETER TEARDOWN