MULTI-POINT CONFERENCE SYSTEM, MULTI-POINT CONFERENCE METHOD, AND PROGRAM

摘要

A multipoint videoconference server is made to swiftly respond to a video switching request from a terminal and a degree of computational complexity is made lower. A server 300 decodes only m (1 < m ‰ n) video streams selected from n terminals and stores video streams that need not be decoded in buffers. When an instruction to switch to another stream is received from a terminal, the server 300 uses data accumulated in the buffers and decodes from the latest I frame by going back to the past before starting to provide a video using the video stream.