Real-time video delivery system based on MPEG-4 CODEC
Lei Xu, Zhenguo Sun, Qiang Chen · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2002
Due to the existing problem ofdata loss and time delay, Internet Multimedia applications always couldn't achieve good real-time performance. Real-time streaming of audiovisual content over Internet is emerging as an important technology area in multimedia communications. This paper presents a system for transporting real-time video stream over Internet. A MPEG-4 software CODEC is used to compress and decompress digital video data in this system for MPEG-4's built-in flexibility and error resilience capability. New transportation architecture is designed in this system to achieve minimum delay and high network resource utilization. Real Time Protocol (RTP in short) is adopted for the purpose of real-time transportation. Experimental results show that this delivery system obtains good perceptual picture quality and a very short delay under medium bit rate. The presented delivery system will be beneficial to applications that demand high real-time performance under medium bandwidth network environment.