| 基于ARM7的MPEG-4视频解码器的优化 |
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| 引用本文： | 汤霄峰,郑善贤,胡强.基于ARM7的MPEG-4视频解码器的优化[J].电子技术应用,2009,35(3). |
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| 作者姓名： | 汤霄峰 郑善贤 胡强 |
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| 作者单位： | 湖南大学电气工程与信息学院,湖南,长沙,410082 |
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| 摘 要： | 分析了ARM7处理器的结构特点,针对解码器的优化特点和芯片的硬件结构,采用了算法级、语言级、ARM级联合优化的方法,对标准MPEG-4解码过程进行了优化。通过本文所总结的ARM7TDMI上视频解码的优化方法,可以使MPEG4视频解码节约大量的数据处理时间,能较好地满足低分辨率、低帧率场合实时解码的要求。
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| 关 键 词： | ARM7 MPEG-4 视频解码器 |
Optimization of MPEG-4 video decoder based on ARM7 |
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| TANG Xiao Feng,ZHENG Shan Xian,HU Qiang.Optimization of MPEG-4 video decoder based on ARM7[J].Application of Electronic Technique,2009,35(3). |
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| Authors: | TANG Xiao Feng ZHENG Shan Xian HU Qiang |
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| Abstract: | The architecture of ARM7 processor is introduced . We realize optimization of MPEG -4 decoder with arithmetic , language and ARM optimization method, according to the features of decorder and chip architecture. The results indicate that we have successfully realized the optimization of ARM7 video decoder,it also reduces lots of data processing time,and can satisfy the request of low resolution,low frame-rate under the conditions of real-time decoding. |
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| Keywords: | ARM7 MPEG-4 |
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