屏幕共享白板的分析与设计

摘要

屏幕共享是网络视频会议系统的重要组成部分.对基于Red5流媒体服务器的屏幕共享白板进行了分析,参考工厂设计模式以低耦合的方式实现了后台服务.通过Flex SharedObject类保证了白板绘图的买时更新,并对自由笔触功能进行了矢量优化.%Screen sharing is an important module in web conference system A Screen share whiteboard is designed based on Red 5 stream media server Backend service is implemented decoupled according to factory design pattern Real time content update is achieved by Flex SharedObjcct, and free pencil tool is optimized by vector approximation