基于H.323高性能MCU的设计与实现  

Design and Realization of High-performance MCU Based on H.323

作　　者：黄志[1] 王萍[1] 丘昊[1] 高钰杰[1] 

机构地区：[1]广西区气象局信息中心,广西南宁530022

出　　处：《现代电子技术》2010年第4期137-140,共4页Modern Electronics Technique

摘　　要：针对基于H.323协议的Openh323开源视频会议系统中源MCU容纳终端有限,图像质量差等缺陷,在VC++6.0开发平台上,采用基于帧缓冲映射软交换技术改进源码中的MCU,提高其存储转发的能力,从而增加参与视频会议的终端;在占用较少CPU资源的同时,有效提高其传输速率,并缩短了传输时延,取得了良好的测试结果。The paper deals with the problem that the limit of MCU accepts less endpoints and the poor quality of images- synthesis in Openh323 open source video conferencing system which basing on H323 protocol. It is available to adopt soft exchange with frame - buffer - mapping to improve its stored - and - forward ability and increase more terminal participating in system. While taking the few CPU resources, raising its transmission speed effectively and reducing the transmission delay by use of VC6.0 platform,and getting batter results.

关 键 词：H.323 OPENH323 MCU 帧缓冲映射 软交换 

分 类 号：TN919.8[电子电信—通信与信息系统] TP393[电子电信—信息与通信工程]