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AVS-P2标准是中国最近自主制订的数字音视频编码系列标准(AVS)中的第二部分:视频编码标准.根据AVS-P2视频编码标准的新特点,以Ti公司TMS320DM642为核心处理器,设计实现了一个符合AVS标准的低码率实时视频服务器.主要特色是,提出并实现了一种适用于DSP系统的整像素快速运动搜索算法,基于AVS标准的快速DCT变换实现方法,针对DSP的系统结构以及指令特点的系统整体优化方案.实验表明,在DSP系统上,该文提出的优化算法优于原AVS校验模型,大大提高了编码效率,最终实现了能够实时编码4路CIF或者一路D1图像的视频服务器.“,”AVS-P2 is the latest video coding standard, which is the part 2 of domestic AVS (audio video coding standard) series standards. According to the new characteristics of AVS-P2 standard, a low bit-rate real time Digital Video Server on AVS-P2 using DSP TMS320DM642 as core processor is designed. The main features are: A new method of fast integer motion search which apply to DSP system; A new method of fast DCT transformation of AVS on DSP system; The system is specially optimized for DSP. On DSP system , experimental results show that the method in this paper is better than AVS verification model and has higher code efficiency in DSP system. Finally , DVS can achieve the real-time coding of 4–way CIF or 1–way D1 picture.