多媒体技术课程设计报告

1、PAGE PAGE 34二九 二一 学年第 二 学期应用技术学院课程设计报告书课程名称： 多媒体技术 班 级： 09级网络工程 学 号：姓 名：指导教师：二一 年 六 月目录TOC o 1-3 h z u HYPERLINK l _Toc263701556 1.需求分析 PAGEREF _Toc263701556 h 2 HYPERLINK l _Toc263701557 1.1课程设计题目 PAGEREF _Toc263701557 h 2 HYPERLINK l _Toc263701558 1.2课程设计要求 PAGEREF _Toc263701558 h 2 HYPERLINK l _T

2、oc263701559 1.3系统功能需求分析 PAGEREF _Toc263701559 h 2 HYPERLINK l _Toc263701560 2.概要设计 PAGEREF _Toc263701560 h 3 HYPERLINK l _Toc263701561 3.详细设计 PAGEREF _Toc263701561 h 4 HYPERLINK l _Toc263701562 3.1界面设计 PAGEREF _Toc263701562 h 4 HYPERLINK l _Toc263701563 3.2行程编码设计 PAGEREF _Toc263701563 h 11 HYPERLINK

3、 l _Toc263701564 4.程序调试 PAGEREF _Toc263701564 h 14 HYPERLINK l _Toc263701565 4.1源文件的压缩 PAGEREF _Toc263701565 h 14 HYPERLINK l _Toc263701566 4.2源文件的解压 PAGEREF _Toc263701566 h 15 HYPERLINK l _Toc263701567 5.总结 PAGEREF _Toc263701567 h 181.需求分析1.1课程设计题目信源与信道编/解码练习。1.2课程设计要求要求利用程序设计软件(如VC、Java、Matlab)制作一

4、个能完成信道编/解码(海明/CRC码)，信源编/解码(如行程编码)软件。基本要求为编制软件至少能根据所输入的数据完成信源、信道编解码，其中信道编码要求能产生1-2位随机错误，且能纠1位错，最后是能读取txt文件，或者直接读取图片来完成，如能对视频完成则更佳。编写的软件编译后能直接运行，验证编/解码效果，否则无效。 1.3系统功能需求分析操作环境（软件、硬件及条件） Windws 9x/NT/2000/XP/2003 NetBeans IDE 6.8系统功能此软件是在JAVA平台下编写的 ，能根据所输入的数据完成信道（海明码）、信源编解码（行程编码），其中信道编码（海明码）能产生1位随机错误，且

5、能纠1位错，最后是能直接读取图片或txt文件来完成。用户操作流程 编 码： 打开（选择源文件）打开（选择源文件）保存（选择目标文件）保存（选择目标文件）开始编码开始编码 校验 校验查看所存目标文件是否压缩成功查看所存目标文件是否压缩成功 解 码：打开（选择已压缩的文件）打开（选择已压缩的文件）保存（选择目标文件）保存（选择目标文件）开始解码开始解码查看所存目标文件是否解压成功查看所存目标文件是否解压成功2.概要设计系统总体框架： 压 缩 压 缩检 错打开源文件检 错打开源文件 纠 错得到源文件 纠 错得到源文件 解 压 解 压3.详细设计本次课程设计中我主要负责界面设计和行程编码，故作以下详细

6、介绍。3.1界面设计界面设计如图3-1所示：图3-1界面设计代码如下：package DMTcode;import java.io.File;import javax.swing.JFileChooser;import javax.swing.JOptionPane;public class NewJFrame extends javax.swing.JFrame int rndChooser; byte targetBit; private int i; File f1,f2; byte mybyte1,mybyte2; public NewJFrame() initComponents()

7、; this.setTitle(重庆大学 09网络工程 尹力 沈小波 多媒体课程设计); SuppressWarnings(unchecked)； private void initComponents() jPanel1 = new javax.swing.JPanel(); jButton1 = new javax.swing.JButton(); jLabel1 = new javax.swing.JLabel(); jTextField1 = new javax.swing.JTextField(); jLabel2 = new javax.swing.JLabel(); jTextF

8、ield2 = new javax.swing.JTextField(); jButton2 = new javax.swing.JButton(); jButton4 = new javax.swing.JButton(); jButton5 = new javax.swing.JButton(); jPanel2 = new javax.swing.JPanel(); jLabel3 = new javax.swing.JLabel(); jLabel4 = new javax.swing.JLabel(); jPanel3 = new javax.swing.JPanel(); jLab

9、el5 = new javax.swing.JLabel(); jLabel6 = new javax.swing.JLabel(); jLabel7 = new javax.swing.JLabel(); jLabel8 = new javax.swing.JLabel(); jButton3 = new javax.swing.JButton(); jLabel9 = new javax.swing.JLabel(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jPanel1.setBorder

10、(javax.swing.BorderFactory.createTitledBorder(行程编码文件); jButton1.setText(打开); jButton1.addActionListener(new java.awt.event.ActionListener() public void actionPerformed(java.awt.event.ActionEvent evt) jButton1ActionPerformed(evt); ); jLabel1.setText(源文件：); jTextField1.setEnabled(false); jLabel2.setTe

11、xt(目标文件：); jTextField2.setEnabled(false); jButton2.setText(保存); jButton2.addActionListener(new java.awt.event.ActionListener() public void actionPerformed(java.awt.event.ActionEvent evt) jButton2ActionPerformed(evt); ); jButton4.setText(开始编码); jButton4.addActionListener(new java.awt.event.ActionList

12、ener() public void actionPerformed(java.awt.event.ActionEvent evt) jButton4ActionPerformed(evt); ); jButton5.setText(开始解码); jButton5.addActionListener(new java.awt.event.ActionListener() public void actionPerformed(java.awt.event.ActionEvent evt) jButton5ActionPerformed(evt); ); javax.swing.GroupLay

13、out jPanel1Layout = new javax.swing.GroupLayout(jPanel1); jPanel1.setLayout(jPanel1Layout); jPanel1Layout.setHorizontalGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel1Layout.createSequentialGroup() .addGap(38, 38, 38) .addGroup(jPanel1Layout.create

14、ParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup() .addComponent(jLabel2) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jTextField2) .addGroup(jPanel1Layout.c

15、reateSequentialGroup() .addComponent(jLabel1) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 174, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 103,

16、 Short.MAX_VALUE) .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addComponent(jButton2) .addComponent(jButton1) .addGap(50, 50, 50) .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jButton5) .addComponent(j

17、Button4) .addContainerGap(98, Short.MAX_VALUE) ); jPanel1Layout.setVerticalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel1Layout.createSequentialGroup() .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGr

18、oup(jPanel1Layout.createSequentialGroup() .addGap(17, 17, 17) .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel1) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayou

19、t.PREFERRED_SIZE) .addGap(7, 7, 7) .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel2) .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addGroup

20、(jPanel1Layout.createSequentialGroup() .addContainerGap() .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jButton1) .addComponent(jButton4) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(jPanel1Layout.createParalle

21、lGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jButton5) .addComponent(jButton2) .addContainerGap(11, Short.MAX_VALUE) ); getContentPane().add(jPanel1, java.awt.BorderLayout.PAGE_START); jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder( 文件信息); jPanel2.setPreferredSize

22、(new java.awt.Dimension(442, 40); jLabel3.setText(源文件大小：); jLabel4.setText(目标文件大小：); javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2); jPanel2.setLayout(jPanel2Layout); jPanel2Layout.setHorizontalGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LE

23、ADING) .addGroup(jPanel2Layout.createSequentialGroup() .addGap(29, 29, 29) .addComponent(jLabel3) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 268, Short.MAX_VALUE) .addComponent(jLabel4) .addGap(200, 200, 200) ); jPanel2Layout.setVerticalGroup(jPanel2Layout.createParallelGro

24、up(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel2Layout.createSequentialGroup() .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel3) .addComponent(jLabel4) .addContainerGap(17, Short.MAX_VALUE) ); getContentPane().add(jPanel2, j

25、ava.awt.BorderLayout.CENTER); jPanel3.setBorder(javax.swing.BorderFactory.createTitledBorder(海明编码信息); jLabel6.setText(字节二进制编码：); jLabel7.setText(字节海明编码：); jLabel8.setText(随机出错：); jButton3.setText(校验); jButton3.addActionListener(new java.awt.event.ActionListener() public void actionPerformed(java.awt

26、.event.ActionEvent evt) jButton3ActionPerformed(evt); ); jLabel9.setText(纠正：); javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3); jPanel3.setLayout(jPanel3Layout); jPanel3Layout.setHorizontalGroup( jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING

27、) .addGroup(jPanel3Layout.createSequentialGroup() .addGap(26, 26, 26) .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel3Layout.createSequentialGroup() .addComponent(jLabel7) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 321

28、, Short.MAX_VALUE) .addComponent(jLabel9) .addGap(186, 186, 186) .addGroup(jPanel3Layout.createSequentialGroup() .addComponent(jLabel8) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 278, Short.MAX_VALUE) .addComponent(jButton3) .addGap(232, 232, 232) .addGroup(jPanel3Layout.cr

29、eateSequentialGroup() .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabel6) .addComponent(jLabel5) .addContainerGap(531, Short.MAX_VALUE) ); jPanel3Layout.setVerticalGroup( jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEA

30、DING) .addGroup(jPanel3Layout.createSequentialGroup() .addContainerGap() .addComponent(jLabel5) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jLabel6) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(jPanel3Layout.createParallelGroup

31、(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel7) .addComponent(jLabel9) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel8) .addComponent(jButton3) .addC

32、ontainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) ); getContentPane().add(jPanel3, java.awt.BorderLayout.SOUTH); pack(); / private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) / TODO add your handling code here: JFileChooser chooser=new JFileChooser(); chooser.showOp

33、enDialog(jLabel1); jTextField1.setText(chooser.getSelectedFile().getPath().toString(); jLabel3.setText(源文件大小：+chooser.getSelectedFile().length()+字节); f1=chooser.getSelectedFile(); private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) / TODO add your handling code here: JFileChooser ch

34、ooser1=new JFileChooser(); chooser1.showSaveDialog(jLabel1); f2=chooser1.getSelectedFile(); jTextField2.setText(chooser1.getSelectedFile().getPath().toString();jLabel4.setText(目标文件大小：+chooser1.getSelectedFile().length()+字节); private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) jLabel

35、8.setText(随机出错：+myOp.revertAndCheckhammingCode()0); jLabel9.setText(纠正：+myOp.revertAndCheckhammingCode()1); private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) / TODO add your handling code here: /*调用编码方法开始压缩文件*/ if(jTextField1.getText()=null&jTextField2.getText()=null) JOptionPane.

36、showMessageDialog(null, 还没有设置文件呢！); else try mybyte1=myOp.importFile(f1); mybyte2=myOp.zipCode(mybyte1); myOp.exportFile(f2, mybyte2); jLabel4.setText(目标文件大小：+f2.length()+字节); rndChooser=(int)(Math.random()*mybyte2.length); targetBit=mybyte2rndChooser; jLabel5.setText(字节值：+String.valueOf(targetBit);

37、 jLabel6.setText(字节二进制编码：+myOp.hammingCode(targetBit)0); jLabel7.setText(字节海明编码：+myOp.hammingCode(targetBit)1); catch(Exception e) private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) /*调用解码码方法开始解压文件*/ if(jTextField1.getText()=null&jTextField2.getText()=null) JOptionPane.showMessageD

38、ialog(null, 还没有设置文件呢！); else try mybyte1=myOp.importFile(f1); mybyte2=myOp.unzipCode(mybyte1); myOp.exportFile(f2, mybyte2); jLabel4.setText(目标文件大小：+f2.length()+字节); rndChooser=(int)(Math.random()*mybyte2.length); targetBit=mybyte2rndChooser; jLabel5.setText(字节值：+String.valueOf(targetBit); jLabel6.s

39、etText(字节二进制编码：+myOp.hammingCode(targetBit)0); jLabel7.setText(字节海明编码：+myOp.hammingCode(targetBit)1); catch(Exception e) public static void main(String args) java.awt.EventQueue.invokeLater(new Runnable() public void run() new NewJFrame().setVisible(true); ); private javax.swing.JButton jButton1; pr

40、ivate javax.swing.JButton jButton2; private javax.swing.JButton jButton3; private javax.swing.JButton jButton4; private javax.swing.JButton jButton5; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; privat

41、e javax.swing.JLabel jLabel5; private javax.swing.JLabel jLabel6; private javax.swing.JLabel jLabel7; private javax.swing.JLabel jLabel8; private javax.swing.JLabel jLabel9; private javax.swing.JPanel jPanel1; private javax.swing.JPanel jPanel2; private javax.swing.JPanel jPanel3; private javax.swin

42、g.JTextField jTextField1; private javax.swing.JTextField jTextField2;3.2行程编码设计由界面中的开始解码调用行程编码的函数，其代码如下： public static byte zipCode(byte mycode) byte tempArray=new byte10000000;/构建一个足够大的临时数组； int lengthArray=new int4;/临时的存位数长度的数组 lengthArray0=-127; int i=1; int n=0; int mycount=1; do if(mycodei=mycod

43、ei-1) mycount+; i+; else tempArrayn=mycodei-1; n+; if(mycount127) tempArrayn=(byte)lengthArray0; n+; if(lengthArray1=mycount/127)127) lengthArray2=lengthArray1/127; lengthArray1=127; tempArrayn=(byte)lengthArray1; n+; tempArrayn=(byte)lengthArray2; else tempArrayn=(byte)lengthArray1; n+; tempArrayn=

44、0; n+; lengthArray3=mycount%127; tempArrayn=(byte)lengthArray3; else tempArrayn=(byte)mycount; mycount=1; n+; i+; while(i127) tempArrayn=(byte)lengthArray0; n+; if(lengthArray1=mycount/127)127) lengthArray2=lengthArray1/127; lengthArray1=127; tempArrayn=(byte)lengthArray1; n+; tempArrayn=(byte)lengthArray2; else tempArrayn=