大华SDK 监控摄象头二次开发，java 例子程序-Dahua Monitoring Camera SDK secondary development, java example program

集成了海康和大华的JAVA开发包，主要用于接收和解码摄像头视频文件(需自行下载各自官方sdk包配合，将库文件路径设置到环境变量；目前只支持Linux)(This JAVA package support both HikVision and DaHua, which help you fetch and decode video files from camera. (You need download each offical sdk first and set library's direc