Error Control and Recovery Technology in Real-time Media Stream Transmission
Yong Zhang · Journal of National University of Defense Technology · 2003
To provide quality guaranteed realtime video stream in Internet is one of the main contents of multimedia application. But packet loss often occurs in data transmission across Internet, if no recovery measure is adopted, a drop in video quality will occur. Current research focuses on how to improve the quality of video stream and guarantee its realtime character. This paper studied the influence of packet loss on video quality based on MPEG-4 stream, presents a retransmitimportantdatabased error recovery method, in order to improve the quality of realtime video stream. And according to RTP protocol, proposes a new CR-RTP protocol to support the retransmission of video data.