RTSP (Real Time Streaming Protocol) is an application layer protocol in the TCP/IP protocol system. RTSP provides controls such as pause and fast forward for streaming media, but it does not transmit data itself. Its role is equivalent to remote control of streaming media servers.
RTSP defines how one to many applications can effectively transmit multimedia data over IP networks. In RTSP, both the client and server can make requests, meaning RTSP can be bidirectional. RTSP describes the lifecycle of a connection in the form of a session, which is established by the RTSP client using RTSP’s SETUP method. The RTSP client can then control the playback, pause, and replay of real-time streams through methods such as PLAY, PAUSE, RECORD, etc. When real-time streaming is no longer needed, the RTSP client ends the session using the TEARDOWN method.
The Bijie Multimedia Collaboration System provides an RTSP interface that can be integrated with school recording and broadcasting systems. This function enables the recording and storage of teaching screen projection audio and video. Through integration with the recording and playback system, the Bijie Multimedia Collaboration System can achieve automated recording without the need for additional manual operation. In this way, whether it is classroom teaching, experimental demonstrations, or other teaching activities, the entire process can be recorded, providing detailed teaching process materials for the school, and valuable materials for subsequent teaching evaluation, teaching reflection, and student review.
RTSP is built on top of RTP and RTCP in terms of architecture, and it uses TCP or UDP to complete data transmission. The server-side can choose to use TCP or UDP to transmit streaming content, and its syntax and operation are similar to HTTP 1.1, but it does not particularly emphasize time synchronization, so it is more tolerant of network latency.
As for the specific usage of RTSP, it involves more professional programming and network knowledge. Usually, developers will control and transmit real-time streams according to the RTSP protocol specification when writing streaming media applications. For example, by setting appropriate parameters to select the transmission protocol (TCP or UDP), establishing and managing sessions, and using various methods to control the playback status of streams.
Please note that using RTSP requires some experience in network programming and streaming media processing, which may be challenging for beginners. Therefore, it is recommended to carefully read the relevant RFC documents and programming guidelines when developing RTSP applications to understand the detailed specifications and implementation details of the protocol. Meanwhile, one can also refer to some open-source RTSP client and server implementations to better understand and learn how to use RTSP.