提取自DarwinStreamingServer5.5.5的精简版流媒体服务器，具备darwin的核心点播功能，唯一的精简是去除多余插件和其他平台代码。是研究Darwin和流媒体服务器的绝佳材料。-a concise and simplified RTSP Streaming Server, whose source code from DarwinStreamingServer5.5.5, which is a perfect reseach stuff of streaming media