Implementation of a multimedia communication system over IP network

The goal of this work is to implement a multimedia communication system over IP network. The system supports the function of recording, encoding, transmitting, decoding and playing for audio and video. Our work includes three parts: the design of relative algorithms and technologies, the procedure of system implementation and result display. In the system, RTP/RTCP is used for multimedia real-time transmission and an adaptive jitter buffering control algorithm is proposed to improve continuity for audio stream by adjusting the size of jitter buffer dynamically. Finally, the system is tested in a LAN environment, which shows that the system can work stably with little packets lost and the size of jitter buffer can adjust to network dynamically.