基于arm的mplayer播放器的移植畢業論文(已修改)

　

【正文】 基于ARM的Mplayer播放器的移植摘 要目前市場上媒體播放器款式層出不窮。從原先只能用于欣賞音樂的MP3，至今已經發展成能夠播放多種視頻，音頻格式的MP4，MP5等多功能媒體播放器。嵌入式系統的官方定義是以應用為中心、軟件硬件可裁剪的、適應應用系統對功能、可靠性、成本、體積、功耗等嚴格綜合性要求的專用計算機系統。其硬件以一個高性能的處理器（通常是32位處理器）為基礎，軟件以一個多任務操作系統為基礎，非常適合完成MPlayer移植相關任務。本次畢業設計任務就是以Linux嵌入式開發為主線，利用X86PC機與ARM2410s嵌入式平臺開發多種播放格式的MPlayer。本系統首先完成X86PC機Linux環境下MPlayer的實現，之后通過QT制作MPlayer GUI，完成MPlayer 向ARM2410s嵌入式平臺的移植和調試工作。并且通過研究多種視頻的文件格式，使MPlayer能夠播放多種視頻格式。該畢業設計完成了任務書的要求。 關鍵詞:嵌入式；Linux；MPlayer；視頻格式；QT ABSTRACT The present market has been seeing various designs of media players emerging one after another. Originating from MP3 which can only serves for appreciating music, the multifunctional media players nowadays have been developed into MP4 and MP5, which can display many video and audio formats. Based on the softwarehardware bined multimedia processing. The official definition for embedded system is a applicationcentered ware tailorable dedicated puter system that can cater to the strict integrative requires of the application system of function, reliability, cost, volume and power dissipation.The graduate project plans to develop Mplayer with various play formats using the embedded platform of X86PC machine and ARM2410S, with the development of Linux embedded chips as the main line. The system first has acplished player39。s implementation of X86PC machine under the environment of Linux, followed which Mplayer GUI has been constructed to achieve the transplantation and debug from Mplayer to ARM2410 embedded platform. Meanwhile, Mplayer is designed to display various video formats though research on the file formats of various videos. The graduate project has acplished all the requires of the assignment. Key words: embedded。 Linux。 video format。 QT 目 錄 第一章 前言.................................................1 1. 研究背景和意義...........................................1 2. 嵌入式系統概述...........................................2 嵌入式系統定義 .........................................2 嵌入式系統構架 .........................................3 嵌入式系統開發流程 .....................................5 3. 研究現狀................................................7 嵌入式系統發展現狀 .....................................7 嵌入式移植研究現狀 .....................................8 畢設系統研究現狀 .......................................9第二章 系統分析 ..........................................10 1. 系統通用模型............................................ 10 2. 系統主要任務和目標...................................... 11 主要研究內容 ...........................................11 主要目標 ...............................................113. 系統結構分析.............................................12 ARMLinux 端............................................12 X86PC 端................................................124. 系統選用的開發工具.......................................12 UPNETARM2410S 嵌入式開發平臺..........................12 Linux 操作系統..........................................14 HEX EDIT ..............................................16 GCC 編譯器..............................................17第三章 系統概要設計 ..................................... 211. 總體設計................................................ 21 系統體系結構 ........................................ 21 基本設計概念 ........................................ 22 2. 模塊設計................................................ 25 功能模塊對照表 ..................................... 25 各功能模塊邏輯關系 .................................. 26 第四章 系統詳細設計 ..................................... 27 1. 嵌入式開發環境的搭建.................................... 27 2. 視頻格式分析模塊........................................ 28 模塊概述 ............................................ 28 模塊分析 ............................................ 28 3. MPlayer 模塊 ............................................ 36 X86MPlayer 模塊..................................... 36 ARMMPlayer 模塊..................................... 39 MPlayer 編譯指令..................................... 40 4. Gcc 模塊 ................................................ 42 Gcc 模塊定義......................................... 42 ARMLinuxgcc 模塊安裝編譯........................... 43 5. MINICOM 模塊 ............................................ 44 MINICOM 定義......................................... 44 配置流程 ............................................ 44 ................................................. 45 內核介紹 ............................................ 45 模塊執行流程 ........................................ 45 7. GUI 模塊 ..............................................47 模塊概述 ............................................ 47 QT 環境搭建.......................................... 47 插槽機制 ............................................ 49 主要數據結構和服務方法 .............................. 51 第五章 系統測試 ............................................ 54 1. 測試計劃................................................ 54 測試對象 ............................................ 54 測試目標 ............................................ 54 測試原則 ............................................ 55 測試策略 ............................................ 56 2. 測試過程................................................ 56 模塊測試 ............................................ 56 模塊集成測試 ........................................ 59 系統測試 ............................................ 61 3. 錯誤總結................................................ 62 Mplayer 移植錯誤分析................................. 62 內核聲卡驅動 BUG 消除 ................................ 63 第六章 結 論 ......................................... 67 1. 本系統特色.............................................. 67 2. 開發心得................................................ 67 參考文獻 ...................................................... 70