校园网高清视频直播传输系统设计

The Design of High-Definition Video Broadcast Transmission System in Campus Network

为了在提高视频画面质量的同时不增加网络负载,根据学校网络结构的特点,分析数据在传输过程中的一些关键技术指标,采用多级软件组播的思想,提出一种具有并发能力强、实时性高、高清稳定的视频直播传输系统.该系统解决了节点加入与退出的管理,单点故障处理,跨校区分布式部署等问题,既能保证用户观看效果又能提升网络带宽的利用率.

In order to improve the video quality without increasing the network load,according to the situation involving such three points as the characteristics of campus network structure,some key technical indicators in the data transmission process,a multi-level software multicast of thinking,a living broadcast transmission system with strong concurrency,high real time and high-definition stability is proposed.The experiment result indicated the mechanism can solve the management of the node entry and exit effectively,handling of the single point error and multi-campus distributed deployment.In addition,the users watching effect can be guaranteed while the utilization of the bandwidth being improved.