摘要
本文讨论了一种基于Linux的MP3播放器的设计。系统基于Linux操作系统,利用GNU开发工具进行软件开发,使用C99标准的C语言编写,利用开源的高质量MPEG音频解码器MAD对MP3文件进行解码生成PCM数据,用ALSA中的PCM接口处理PCM数据,最后将数字信号转化为模拟信号,实现MP3音频的播放。
This paper discussed a method for the design of Linux-based MP3 Players, The system is based on Linux and designed with C in GNU, high quality MPEG audio decode library MAD was used to decode the MP3 audio file into PCM data, and then the ALSA was adopted to deal with the PCM data, At last, PCM data was converted from digit signal to analog signal and be played.
作者
王赋攀
方龙
WANG Fu-pan, FANG Long （College of Computer Science and Technology, Southwest University of Science and Technology, Mianyang 621010, China）
出处
《电脑知识与技术》
2007年第8期849-851,共3页
Computer Knowledge and Technology
