基才ARM平台的MP3软解码算法研究与实现

摘要

In order to reduce power consumption and costs,the paper achieve an MP3 audio decoder through software according to the ARM chip is good support for the C language features and based on analysing the MP3 decoding arithmetic deeply and analysing optimizing way for programming in C language on the ARM chip. It allows some ARM embedded systems which don＇t have hardware decoder to complete the decoder task,so it can achieve the MP3 software decoder based on ARM embedded systems, which could effectively reduce system power consumption, improve the decoding efficiency, extend and enhance multimedia capabilities of portable embedded systems.%为了减少功耗与降低成本，根据ARM芯片对C语言良好支持的特点，在深度剖析MP3解码算法、分析C语言在ARM芯片上编程的优化方法的基础上，通过软件形式实现MP3音频解码器，使一些无硬件解码器支持的ARM嵌入式系统完成MP3解码任务，从而实现基于ARM的嵌入式系统的MP3软解码器，可以有效地降低系统功耗，提高解码效率，更好地扩展和增强便携嵌入式系统多媒体功能。