资料介绍
(清华大学 电子工程系, 北京 100084) 魏振宇,张旭东
摘要:本文介绍了新一代视频编码标准H.264性能和技术特点,并讨论了H.264在TMS320C6416上的实现与优化。笔者的工作是在C6416DSP的开发平台NVDK上实现了H.264的独立编解码算法,并对其进行优化,使其达到实时通信的要求,完成一个多媒体通信终端平台。因为代码的兼容性和可移植性,笔者的工作可以方便地移植到TI的新一代媒体处理器DM642为核心的系统中,实现更好的效果。试验结果显示,优化后的编解码器运行速度有了很大提高,在Qcif格式下基本达到了实时编解码效果。
关键词:H.264;NVDK;数字信号处理器(DSP)
中图分类号:TN919.81
文献标识码:B
Abstract:The feature of new generation video coding standard CH264 is introduced, and the implementation of H.264 using the NVDK C6416DSP platform is discussed. An optimized H.264 codec which has the real-time performance is realized. The codec can be used as a multimedia communication terminal platform. Because of the compatibility and transplantability, the realized codec can be transplanted to multimedia processor DM642. Simulating result shows that the optimized codec has high performance and real-time encoding and decoding rate for Qcif format sequence.
Key words: H.264;NVDK;digital signal processor (DSP)