Control scheme for multimedia synchronization over IP

Based on the analysis of the Resource Reservation Protocol(RSVP),Real time Transport Protocol(RTP),Real time Control Protocol(RTCP) and Real Time Streaming Protocol(RTSP),a multimedia synchronization control scheme over IP is proposed.It combines RTSP with RSVP to set up and manage reserved-bandwidth streaming sessions that are carried by RTP.After mapping users' synchronization requirements into the network QoS(FLOWSPEC in RSVP),RSVP can reserve resource to guarantee intra-stream synchronization.RTCP control packets can be used to determine the network congestion state and to control the quality of session.,Inter-stream synchronization can be achieved by adjusting the process of playout.With this scheme,intra-stream and inter-stream synchronization can be guaranteed in real-time multimedia applications over IP.