嵌入式视频播放器研究与设计

发布时间：2018-06-24 06:35

本文选题：视频播放器 + ARM　；参考：《吉林大学》2012年硕士论文

【摘要】：近年来随着生活水平和科技的不断提高，嵌入式产品逐渐进入了人们的日常生活，诸如智能手机、平板电脑、家用电器、IC卡、各种仪器仪表等等。拥有着各种功能的嵌入式产品不仅给我们的生活带来了方便，同时也改变着我们的生活方式。从前需要在计算机上才能做的事情，现在基本上都可以通过一个嵌入式手持终端设备来完成，可以说我们所处的时代是后PC时代。本文所研究的嵌入式视频播放器，是典型的嵌入式设备。嵌入式系统的开发要遵循自己的原则，即以应用为中心，计算机技术为基础，，同时对体积、功耗、成本、稳定性进行平衡选择，本文的研究选择了由友善之臂公司开发的mini2440作为试验平台，并配置一台PC机ACER4720做为宿主机以作辅助开发之用。论文首先是对研究目标—嵌入式视频播放器的国内外的发展现状进行阐述，之后介绍了课题所涉及的嵌入式领域的相关技术包括Linux系统相关技术、嵌入式技术、ARM相关技术。从第3章开始进入课题的正式开发，先是进行了需求分析和建模工作，之后对本文所要使用的嵌入式Linux系统进行剪裁、交叉编译、向所使用的mini2440开发板移植。在比较关键的视频解码任务上，本文采用MPlayer播放器来实现，并通过QT程序进行了用户UI界面的设计。论文的最后对课题所研究的整体系统进行了测试，包括视频模块和声音模块两个部分，视频的显示效果达到了预期。
[Abstract]:In recent years, with the improvement of living standards and technology, embedded products have gradually entered people's daily life, such as smart phones, tablets, household appliances, IC cards, various instruments and instruments. Embedded products with various functions not only bring convenience to our life, but also change our way of life. What we used to need to do on a computer is now basically accomplished by an embedded handheld terminal device. We can say that we are in a post-PC era. The embedded video player studied in this paper is a typical embedded device. The development of embedded system should follow its own principle, that is, the application is the center, the computer technology is the foundation, and the volume, power consumption, cost and stability should be balanced. In this paper, the mini2440 developed by friendly arm Company is selected as the test platform, and a PC ACER4720 is configured as the host computer to assist the development. Firstly, this paper describes the development of embedded video player at home and abroad, and then introduces the related technologies in embedded field, including Linux system related technology, embedded technology and arm related technology. Chapter 3 begins with the formal development of the subject. First, the requirement analysis and modeling work is carried out, then the embedded Linux system used in this paper is cut, cross-compiled, and transplanted to the mini2440 development board used in this paper. In the key task of video decoding, this paper uses MPlayer player to realize, and designs the user UI through QT program. At the end of the thesis, the whole system is tested, including video module and sound module, and the video display effect is up to expectations.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TN946

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