文档介绍：移动设备网络视频播放器的实现
摘要
随着手机等移动设备的广泛普及以及国内3G推广在即,届时无线网络的速度将明显提高,这为在移动终端上实现视频传播提供了现实可能,并且由于基于嵌入式的移动设备在市场上的占有率不断提高并逐渐成为发展的主流趋势,有必要对基于嵌入式移动设备网络视频播放器的实现方案进行研究,并提出一种高效的可行方案。
本课题目的是在ARM-Linux嵌入式环境下实现网络功能,系统主要由硬件层、内核层、应用层三部分构成。为了达到网路播放的功能,本文通过对基于ARM9的up-tech嵌入式开发平台硬件以及Mplayer解码及播放功能的研究提供了一种在嵌入式开发平台上实现网络播放的可行方案。本方案在ARM920T硬件结构体系下通过移植经过裁剪的linux内核、根文件系统、Mplayer以及播放器图形界面。通过整合硬件层、内核层以及应用程,在嵌入式环境下利用FTP传输协议实现网络播放功能。
本项目最后已在宿主机中实现网络播放功能,但在嵌入式开发平台中运行时仍有不足之处,需要进一步完善。通过这一课题的研究了解移动设备网络视频播放器的实现主要技术,并提供一款低成本、实用性高的无线网络视频播放器,这对嵌入式移动设备领域的研究来说具有重要意义。
关键期:嵌入式;arm-Linux;QT;Mplayer;网络播放器
The Design of MP3 Player Base on Embedded Linux Operation System and QT GUI Tool
Abstract
As embedded systems are widely used in various fields of national economy, the research on embedded systems has very important practical significance. This article describes is the MP3 player which based on embedded Linux and QT design and implementation.
In this paper, UP-TECH 2410 embedded development board as the hardware platform, as the core development tools, in the embedded Linux system, the implementation of the MP3 player program design and implementation.
To the hardware platform, this paper firstly introduces the core part of UP-TECH 2410, and then analyses the circuit of serial port, Audio Circuit, LCD, Touch Screen, network card and other important peripheral circuits.
To the software platform, after introducing a cross-platform QT application - QT Designer, QT signal and slot mechanism, QT event processing technology, this paper then focusing on the achievement of GUI based on QT. In this paper also show the result that MP3 player run in the UP-TECH 2410 embedded development board.
What’s at last is the explaining of configuring exploitation environment and the review and expectation of this paper.
Keywords: Embedded system; Linux; QT; MP3; Player
目录
摘要 I
Abstract II
目录 III
第一章概述 1
1
2
QT介绍 2
3
第二章硬件相关介绍 3
3
4