摘要
在分析H.323系统的基础上,提出了多路视频传输与显示的新方法,实现了用户申请工作模式。在用户申请模式下,MCU将与会人员列表发送给各终端,用户可以向MCU申请一路或多路视频流。MCU对被申请的视频流进行复合和转发,它们在终端可以被独立显示。用户申请模式增强了系统的交互性,保持了图像原有尺寸。实验表明,作为一种扩展的工作模式,它具有良好的兼容性,在CPU和内存占用等方面也明显优于混图模式。
Based on analyzing H.323 system,a new method for transporting and displaying multi-videos is put forward,and user on demand is implemented.MCU sends users information to all conference endpoints,users can apply to MCU for one or more video streams.The applied videos are multiplexed and transported by 5VICU,and displayed on the endpoint independently.This mode improves the interactivity and maintains the size of these video streams.Tests show that this new mode has a perfect compatibility,and is superior to mixed mode in CPU and memory utilization.
出处
《计算机工程与应用》
CSCD
北大核心
2007年第21期211-213,228,共4页
Computer Engineering and Applications
基金
中国地大校内基金项目(No.200501)。
