MPEG-4编码器在BF561上的优化  

Optimization of MPEG-4 Encoder Based on ADSP-BF561

作　　者：何新宏[1] 

机构地区：[1]中国人民解放军驻二○三所军事代表室,陕西西安710065

出　　处：《现代电子技术》2010年第8期194-196,199,共4页Modern Electronics Technique

摘　　要：介绍一种基于Blackfin系列处理器BF561实现的MPEG-4编码器,根据BF561的特点提出了三种优化措施,得到一种新的优化编码算法。通过标准测试序列和实时采集的数据对其进行性能测试,实验结果表明,该编码器优化效果明显,可实现D1格式下的实时采集压缩功能。The implementation of MPEG-4 encoder based on the processor BF561 in Blackfin series is presented. Three optimal measures are proposed on the basis ofthe characteristics of BF561. A new optimal coding algorithm is obtained. The optimized encoder was tested with the standard test sequences and real-time collected data respectively. The experimental results prove that the encoder has better effects and can implement the functions ofreal-time acquisition and compression in D1 format.

关 键 词：视频压缩 MPEG-4 BF561 优化 性能测试 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]