自己做的一个java 的聊天工具，主要向实现的事udp的广播、多播识别用户，可以突破局域网的限制，最主要的是想实现文件的广播传送，以及多人的广播语音，最后由于毕业，只完成，语音部分。-have done a java chat tool to achieve the main thing udp in broadcasting, multicast identifies the user, can overcome the limitations LAN, the most important

This tutorial gives a survey of actual used techniques for multicast streaming video. We first discuss important issues in video streaming namely video compression techniques and video compression standards. We then present the challenges in mult