基于ARM9的嵌入式流媒体播放器设计与实现

发布时间：2018-03-03 21:35

本文选题：嵌入式系统　切入点：ARM处理器　出处：《电子科技大学》2013年硕士论文　论文类型：学位论文

【摘要】：在快速发展的信息时代,特别是移动互联网的兴起，移动互联网几乎涉及到了所有的信息技术，移动互联网的一大趋势是多媒体应用的迅速发展，在多媒体技术领域中流媒体是重要的技术。在本系统开始设计之前，熟悉嵌入式硬件开发平台，包括ARM处理器的工作原理、ARM的指令集、相关开发工具的使用方法等。学习Windows CE嵌入式操作系统的相关知识，主要包括Windows CE操作系统的原理、工作机制、定制方法和流程以及应用程序的开发方法等。DirectShow技术是实现流媒体播放器的核心技术，需要对DirectShow技术及其相关知识进行学习，需要掌握的包括DirectShow的技术框架、过滤器等的概念以及其开发流程。软件程序的实现是本文的重点，也是项目的主要任务。软件的实现主要包括三部分，即图形用户界面、数据流处理以及视频显示。文中利用MFC设计了具备良好用户体验的图形用户界面，利用DirectShow的API函数实现了流媒体数据流的处理和显示，流媒体的输入源可以为本地视频文件和网络流媒体文件。为了增强设备的娱乐性，系统扩展了对iPod控制的功能，利用串口实现了设备对iPod的控制，即控制iPod上音频文件的播放、暂停、停止、下一首、上一首等，并将iPod中的音频在设备的音响上输出。作者完成了应用程序的设计后，对系统进行了一系列的测试，，对其功能进行验证，并且对其技术参数进行提取。文中详细地列出了对软件进行测试的内容、方法和结果，为后续的设计和生产提供有益的工程数据。
[Abstract]:In the rapid development of information age, especially the rise of mobile Internet, mobile Internet involves almost all information technology, a major trend of mobile Internet is the rapid development of multimedia applications. Streaming media is an important technology in the field of multimedia technology. Before the design of this system, we are familiar with the embedded hardware development platform, including the working principle of ARM processor and the instruction set of arm, the usage method of related development tools, etc. DirectShow technology is the core technology to realize streaming media player, including the principle, working mechanism, customization method and flow chart of Windows CE operating system, and the development method of application program. It is necessary to study the DirectShow technology and its related knowledge. The technical framework of DirectShow, the concept of filter and its development flow are needed. The realization of software program is the focus of this paper, and also the main task of the project. The realization of software includes three parts, namely, graphical user interface, and so on. In this paper, the graphical user interface with good user experience is designed by using MFC, and the stream media data stream is processed and displayed by API function of DirectShow. The input source of streaming media can be local video files and network streaming media files. In order to enhance the entertainment of the device, the system extends the function of controlling iPod, and realizes the control of iPod by means of serial port, that is, to control the playback of audio files on iPod. Pause, stop, next, previous, etc., and output the audio from the iPod on the device's audio. After completing the design of the application program, the author carries on a series of tests to the system, verifies its function, and extracts its technical parameters. In this paper, the contents, methods and results of the software testing are listed in detail. Provide useful engineering data for subsequent design and production.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TN919.8;TP368.12

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