摘要
以LSI Logic公司的双核嵌入式处理芯片ZEVIO 1020为平台,构建了一个高性能的MPEG-4解压缩处理系统.与一般的解码系统相比,本系统采用了基于ARM9和ZSP 400的双核解码实现机制,同时应用了三种优化方法:基于系统本身的优化,IDCT算法的改进和纯手工的汇编优化.实验结果表明,MPEG-4在ZEVIO 1020上的实现方法和优化策略极为有效,能完全满足实时解码的要求.
This paper provides a high performance MPEG-4 decompression processing system based on ZEVIO 1020. Compares with ordinary decoding system, a dual core decoding realization mechanism is applied based on ARM9 and ZSP400. It focuses on optimization based on system itself, improvement of IDCT algorithm and manual assembly optimization. The result shows that the realization and optimization of MPEG-4 based on ZEVIO 1020 are effective. It can also fulfill the requirement of real-time decoding.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2009年第6期711-714,729,共5页
Journal of Harbin University of Commerce：Natural Sciences Edition
基金
黑龙江省青年学术骨干支持计划(1151G075)
哈尔滨市科技创新人才研究专项基金项目(2008RFQXG025)
