MobileMotion_(TM) MPEG-4 Video Streaming Software

摘要

We commercialized a video streaming system called MobileMotion_(TM), which is compliant with the MPEG-4 standard, in 1998. Applications for video streaming systems can be divided into two types: usage for real-time video encoding and distribution, and usage for on-demand distribution with video archives. The first type requires a short delay time; that is, the elapsed time from video encoding to display. The second type requires video display for multiple sources without stream discontinuity. To meet these requirements, MobileMotion_(TM) adopts Real-time Transport Protocol (RTP) distribution and multi-decoding processing.This paper presents two implementations that cover both types: a real-time distance learning system, and a clip on demand system.