IPTV影音服务之设计与实作

摘要

由于数位化及互动化的需求,IP技术也自然导入到 TV的领域,演变成所谓 IPTV服务。视讯资料需具有实时性及高带宽的需求,所以各国在发展宽带网路的过程,都把IPTV服务的成功视为重要技术的突破。影音服务的丰富度及展现性是IPTV产业成功的重要因素,所以以串流影音区段播放、前台页面广播消息侦测、封锁特定IP使用者及限制最大上线人数、影片播放状态侦测等技术,以实践影音内容快速重组机制以呈现特定主题之影音服务,影音及视讯强制广播功能,以及在线人数及带宽有效掌握等影音服务。整体系统是架构在Media Service 9,Microsoft Visual Studio 2008,SQL Server 2000等环境开发。%For the progress of network technology,IPTV becomes an important broadband service these days. On the suc⁃cess of IPTV service,the richness of the audio⁃visual services and control mechanisms plays an important factor. The technolo⁃gies that quickly recompose video contents for a specific topic are designed and implemented in this paper. The play control to break in and interrupt a video play for a specific user was realized. The maximum on⁃line users were limited. The system is based on Media Service 9,Microsoft Visual Studio 2008,SQL Server 2000. The system practice shows that it provides qualified audio⁃visual services for an IPTV system.