本科毕业设计（论文）
爬梯安全装置
题 目： 基于QT的多媒体播放器
系统的设计与实现
院 系： 运算机与信息工程学院
专业年级： 07电子科学与技术
学生姓名：防滑垫片 尹倬卿 学号：实时监控系统 草率的爆破********
****modbus网关模块 金一鸣
2011年 06月 14日
基于QT的多媒体播放器系统的设计与实现
摘要环境模拟舱 随着用户要求的不断提高，越来越多的嵌入式设备使用功能强大、价格低廉的嵌入式Linux作为操作系统并开始采纳较为复杂的图形用户界面。Qt以其强大的功能、良好的可移植性逐步成为一种被广泛使用的GUI系统。正是由于嵌入式操作系统及其相应图形用户界面的不断进展，嵌入式软件的开发显得越来越重要。其中嵌入式媒体播放器由于能够满足人们的视听享受差不多逐步成为了系统中不可或缺的重要组成部分，在嵌入式系统上开发媒体播放器差不多成为了一个技术热点，当前许多嵌入式产品中都包含媒体播放器。因此在基于Qt的嵌入式Linux系统中实现媒体播放器具有深刻的意义和有用价值。本文运用QT技术在Linux下进行GUI设计，以一个图形界面为例，运用QT creator软件编程，实现一个
简单的多媒体播放器。此播放器能够播放本地的音频文件，在功能方面，它具备一些差不多的音乐操作处理功能（暂停、播放、音量调剂、拖动、停止等），此外，界面还能显示歌曲信息，比如歌手，播放的时候能够通过按钮实现随机播放功能。
关键词：嵌入式系统 多媒体播放器 QT Linux
QT multimedia player based on the design and implementation
Abstract With the continuous improvement of user requirements, more and more powerful embedded devices, low-cost embedded Linux as an operating system and begin to adopt a more sophisticated graphical user interface. Qt for its powerful features, good portability has become a widely used GUI systems.It is because of the embedded operating system and its corresponding continuous development of graphical user interface, embedded software development becomes more and more important. Embedded media player which can meet the audio-visual enjoyment of the system has gradually become an indispensable part of the development in the embedded system media player technology has become a hot spot in both the current number of embedded
products contains the media player.Therefore, in Qt-based embedded Linux system to achieve media player has a profound significance and practical value. This use of technology under Linux QT GUI design, with a graphical interface, for example, the use of QT creator software programming, a simple multimedia player.This player can play local audio files, in terms of functionality, it has some basic music processing operations (pause, play, adjust volume, drag, stop, etc.) In addition, the interface can display song information, such as singers, Play time can be achieved through the random playback function buttons.
Keywords Embedded systems multimedia player QT Linux
1.引言 1
