Music-Player的开发与实现论文.docVIP

Media-Player的设计与实现 摘 要 关键词：MP3， 播放器， Qt， 毕业设计， 模块 Design?and?Realization?of?MP3?media?player Abstract Along with the development and popularization of computers and multimedia technology, various media types and media players emerge continually. The MP3 (MPEG Audio Layer3) type is one of the most broadly used audio types. Because MP3 has small volume and high tone quality, it has been supported by most software and hardware media players. Nowadays in software market, the higher tone quality and the lower memory consumption are the goals that each kind of media player pursues. This graduation design is a software which is called MP3 player with timely-displaying lyric is designed and realized in this thesis. The software uses the Qt delopment platform ,the use already exists in the Phonon of Qt for the bottom of decoding and playback work. The player can display lyric with real-time while playing MP3, and it supports some other types of common media files. Firstly, this thesis introduces MP3 and MP3 player, research contents and chapter. Then, the design goal of the system is analyzed, and the function modules of the system are divided and designs, including playing control, playlist management and lyric display, also the process flows of media and lyric files are designed. Following, the development platforms are introduced, and the detailed design and realization of various functions of the system are described. At last, the running results of the system are explained by the copied running screens. Key words： MP3， Player， Qt， graduation design， modules  目录 1 前 言 1 2 MP3播放器简介 2 2.1 MP3与MP3播放器 2 2.2 MP3及其播放器的的发展史 3 2.3 几种常见的MP3播放器软件和介绍 4 2.3.1 千千静听 4 2.3.2.Winamp 4 2.3.3.Foobar 2000 5 2.4 本文研究内容 5 2.5 本文章节安排 6 3 系统分析与设计 7 3.1 系统目标 7 3.2系统的功能模块设计 7 3.2.1 系统的播放器控制窗口模块设计 8 3.2.2 MP3文件的播放列表管理模块的设计 9 3.2.3 MP3歌词的实时显示模块的设置 9 3.3 MP3和歌词文件的处理流程 9 3.3.1 MP3文件播放处理流程 10 3.3.2 歌词文件的处理流程 10 4 系统的详细设计和实现 12 4.1 开发平台以及环境 12 4.1.1 Qt