利用jmf进行rtp传输，在本地测试调用摄像头进行视频通讯 .

在Sender和Receiver中的main函数中，我把本地地址和远端地址都设置成本机的地址，自己传给自己，用来试验用的。 其中用到 StateHelper类 。

Sender的前两个注释是把视频传输换成音频传输；传输一分钟后结束（第76行-Conducted using jmf rtp transmission, call the local test camera for video communication. Sender and Receiver in the main function, I put a local address and remote address are set to address the cost of the machine, to pass their own, to test the . Which uses StateHelper classes. Sender is the first two notes of the video transmission replaced audio transmission　transmission one minute after the end of the (76th row