介绍了流媒体传输的基本协议RTP/RTCP,提出了RTP 的自适应传输方案,对关键技术进行了优化,构建了一个基本的实时音频传输系统。 关键词: RTP;时间戳;DLL Abstract: This article introduces the protocols RTP/RTCP of streaming media transfer, analyses the self-adapted transmission and optimizes the key technologies, builds a basic real-time audio transmission system. Key words: Real-time Transfer Protocol; timestamp; Dynamic-Link Library