说明：  JMF2.1.1安装文件。JMF是JAVA对实时多媒体开发的支持工具，开发环境清晰，易用。尤其是最新版2.1.1对RTP和流媒体的控制都提供了强大的支持库和开发接口。
(JMF2.1.1 installation files. JMF Java is the development of real-time multimedia support tools, development environment clear, easy-to-use. In particular, the latest version 2 .1.1 right RTP streaming media and the control provided strong support and development of the interface.)