RTSP (Real Time Streaming Protocol) is a network protocol designed for working with streaming media. It allows to control a multimedia server remotely.
RTSP provides access to the multimedia files located on a server. It also allows the execution of commands performing playback, pause and stop of multimedia content broadcasting.
RTSP does not perform compression nor does it determine a method of compression of multimedia data or transport rotocols. The transfer of streaming data by itself is not part of the RTSP. To accomplish this, the majority of RTSP servers use a standard real-time transport protocol performing audio and video data transfer.