结合Trimedia处理器体系结构的视频编码效率优化  

Video encoder computation efficiency optimization based on Trimedia processor architecture feather

作　　者：刘树波[1] 徐正全[1] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室

出　　处：《武汉大学学报（工学版）》2006年第6期46-50,共5页Engineering Journal of Wuhan University

摘　　要：介绍了针对Trimedia多媒体处理器芯的硬件结构和特点,将H.263、MPEG4等视频编码算法移植到TM1302平台并进行大量的优化.实验结果表明,使用文中给出的优化算法,可以在TM1302上快速实现视频编码器,对于D1图像,实时编码速度不低于15帧/s,基本满足了视频实时编解码的要求.The Trimedia media processor hardware architecture is introduced; and their function in multimedia computation is analyzed. Taking H. 263 or MPEG4 as a real-life example, the paper focuses on the video encoder computation efficiency optimization approaches which are incorporated into the hardware functions provided by Trimedia processor. Experimental results demonstrate that if applied well our methodology ,the video encoder realized on TM1302 platform can encode D1 resolution video frame at more than 15fps,which can be almost satisfied in the real-time video communication.

关 键 词：视频编码 多媒体处理器 优化 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]