基于Linux的嵌入式多媒体播放器的设计和实现

发布时间：2018-03-10 11:02

本文选题：嵌入式　切入点：ARM　出处：《中北大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着嵌入式技术的成熟,各种嵌入式设备像智能手机、平板电脑等丰富了人们的日常生活。嵌入式开发也成了现今电子计算机技术的热门领域。在此契机之下,本文作者设计并实现了一款基于嵌入式Linux的多媒体播放器,能够克服传统播放器不容易扩展功能、支持多媒体格式有限、携带不方便等缺点。本播放器采用三星公司生产的S3C6410ARM11芯片,硬件平台使用核心板加底板设计,配备了触摸屏、USB接口、SD卡接口、以太网接口。软件方面采用开源的嵌入式Linux作为操作系统,开源软件Mplayer作为播放器,并且使用MiniGUI为播放器开发了图形用户界面。本文的主要内容有： (1)前期理论学习：包括文献查阅、对嵌入式技术的研究、各种主流音频视频文件的编解码研究。 (2)硬件平台设计：了解所用开发板的主要模块,包括CPU、Nand Flash、Nor Flash、SD卡座、USB接口、LCD、启动模式等；设计了串口红外接收电路,实现播放器平台的红外遥控。 (3)软件平台设计：在论文中分两个部分给出,操作系统平台移植和应用软件编写。操作系统平台移植：给出了建立交叉编译环境的方法；Linux内核的配置和移植：引导装载程序uboot的编译移植；yaffs2文件系统的制作和移植。应用软件部分,说明了播放器软件的设计过程与实现；为播放器建立图形操作界面的过程。
[Abstract]:With the maturity of embedded technology, various embedded devices such as smart phones and tablets have enriched people's daily life. Embedded development has become a hot field of computer technology. The author of this paper designs and implements a multimedia player based on embedded Linux, which can overcome the shortcomings of traditional players, such as not easy to extend their functions, limited support for multimedia formats, and inconvenient to carry. This player uses the S3C6410ARM11 chip produced by Samsung, the hardware platform is designed with core board and backboard, the interface of SD card and Ethernet interface is equipped with touch screen, and the software uses open source embedded Linux as operating system. Open source software Mplayer as a player, and the use of MiniGUI for the player developed a graphical user interface. The main contents of this paper are as follows:. Prophase theoretical learning: including literature review, embedded technology research, various mainstream audio and video file coding and decoding research. Design of hardware platform: understand the main modules of the development board used, including CPU Nand Flash nor SD card socket USB interface, start mode and so on, design serial port infrared receiving circuit to realize the infrared remote control of the player platform. Software platform design: this paper is divided into two parts. Operating system platform porting and application software authoring. Operating system platform porting. The method of establishing cross compiling environment is given. The configuration and migration of Linux kernel are given: the compilation and migration of uboot boot loader and the implementation of yaffs2 file system. Porting. Application software, The design process and implementation of the player software and the process of establishing the graphical operation interface for the player are described.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.1;TP37

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