学步园

package org.bruce.myown_product;</p> <p>import java.awt.BorderLayout;<br /> import java.awt.Component;<br /> import java.awt.event.ActionEvent;<br /> import java.awt.event.ActionListener;<br /> import java.io.File;<br /> import java.util.Vector;</p> <p>import javax.media.CaptureDeviceInfo;<br /> import javax.media.CaptureDeviceManager;<br /> import javax.media.DataSink;<br /> import javax.media.Format;<br /> import javax.media.Manager;<br /> import javax.media.MediaLocator;<br /> import javax.media.Player;<br /> import javax.media.Processor;<br /> import javax.media.ProcessorModel;<br /> import javax.media.control.FormatControl;<br /> import javax.media.format.VideoFormat;<br /> import javax.media.protocol.DataSource;<br /> import javax.media.protocol.FileTypeDescriptor;<br /> import javax.media.protocol.SourceCloneable;<br /> import javax.swing.JButton;<br /> import javax.swing.JFileChooser;<br /> import javax.swing.JFrame;<br /> import javax.swing.JOptionPane;<br /> import javax.swing.JPanel;</p> <p>// 这是我自己改写的一个示例，实现了简单的录制和再次录制功能！<br /> public class RecordVideo extends JFrame {<br /> private static final long serialVersionUID = -2570548473293856129L;</p> <p> private CaptureDeviceInfo captureDevice;<br /> private MediaLocator mediaLocator;<br /> private Component visualComponent;<br /> private Processor processor;<br /> private Player player;<br /> private DataSource source;<br /> private DataSource cloneableSource;<br /> private DataSource clonedDataSource;<br /> private DataSink dataSink;<br /> private JPanel videoPanel = new JPanel(new BorderLayout());<br /> private JPanel controlPanel = new JPanel();<br /> private JPanel contentPane;<br /> private JButton btnStart;<br /> private JButton btnStop;<br /> private JFileChooser fileChooser = new JFileChooser();</p> <p> public RecordVideo() {<br /> this.setTitle("视频采集软件");<br /> contentPane = (JPanel) this.getContentPane();<br /> btnStart = new JButton("开始采集");<br /> btnStart.addActionListener(new ActionListener() {<br /> public void actionPerformed(ActionEvent e) {<br /> start();<br /> }<br /> });<br /> btnStop = new JButton("停止采集");<br /> btnStop.addActionListener(new ActionListener() {<br /> public void actionPerformed(ActionEvent e) {<br /> stop();<br /> }<br /> });<br /> btnStop.setEnabled(false);<br /> controlPanel.add(btnStart);<br /> controlPanel.add(btnStop);<br /> contentPane.add("South", controlPanel);</p> <p> this.captureDevice = this.getCaptureDeviceInfo();<br /> try {<br /> mediaLocator = captureDevice.getLocator();<br /> source = Manager.createDataSource(mediaLocator);<br /> // 在调用 createCloneableDataSource(source) 方法以后，上句代码中的 source 引用不再能被使用。<br /> cloneableSource = Manager.createCloneableDataSource(source);<br /> player = Manager.createRealizedPlayer(cloneableSource);<br /> player.start();<br /> } catch (Exception e) {<br /> this.processException(e);<br /> }<br /> visualComponent = player.getVisualComponent();<br /> if (visualComponent != null) {<br /> videoPanel.add(visualComponent);<br /> }<br /> contentPane.add("North", videoPanel);<br /> // 打包使整个界面显得紧凑！<br /> this.pack(); // 注释掉这句代码的话，窗口就缩成一个小布丁儿了!<br /> this.setResizable(false);<br /> this.setDefaultCloseOperation(EXIT_ON_CLOSE);<br /> this.setLocationRelativeTo(null);<br /> this.setVisible(true);<br /> }</p> <p> private void start() {<br /> // ①第一个参数<br /> clonedDataSource = ((SourceCloneable)cloneableSource).createClone();<br /> // ②第二个参数<br /> FormatControl formatControl = (FormatControl) player.getControl("javax.media.control.FormatControl");<br /> Format defaultFormat = formatControl.getFormat();<br /> // defaultFormat的值为: MJPG, 640x480, FrameRate=15.0, Length=921600 0 extra bytes<br /> // ③第三个参数<br /> FileTypeDescriptor outputFileType = new FileTypeDescriptor(FileTypeDescriptor.QUICKTIME); //.QUICKTIME</p> <p> ProcessorModel processorModel = new ProcessorModel(clonedDataSource,<br /> new Format[] { defaultFormat }, outputFileType); // DataSource 可能为 mixed, 故用数组<br /> try {<br /> processor = Manager.createRealizedProcessor(processorModel);<br /> } catch (Exception e) {<br /> this.processException(e);<br /> }<br /> String locatorString = this.getLocatorString(); //locatorString 表示存储录像数据的文件的路径<br /> if (locatorString == null) {<br /> return;<br /> }<br /> MediaLocator dest = new MediaLocator(locatorString);<br /> DataSource outputDataSource = processor.getDataOutput();<br /> try {<br /> // 本地文件传输<br /> dataSink = Manager.createDataSink(outputDataSource, dest);<br /> dataSink.open();<br /> dataSink.start();<br /> } catch (Exception e) {<br /> this.processException(e);<br /> }<br /> processor.start();<br /> btnStart.setEnabled(false);<br /> btnStop.setEnabled(true);<br /> }</p> <p> private void stop() {<br /> processor.close();<br /> processor.deallocate(); // 必须在processor 关闭并调用这个方法以后，录像文件才能保存下来<br /> dataSink.close();<br /> processor = null; // 清空 processor，回收无用的内存！<br /> btnStop.setEnabled(false);<br /> btnStart.setEnabled(true);<br /> }</p> <p> private void processException(Exception e) {<br /> e.printStackTrace();<br /> JOptionPane.showMessageDialog(this, e.toString(), "错误", JOptionPane.ERROR_MESSAGE);<br /> System.exit(0);<br /> }</p> <p> private String getLocatorString() {<br /> if (JFileChooser.APPROVE_OPTION != fileChooser.showSaveDialog(this)) {<br /> return null;<br /> }<br /> File file = fileChooser.getSelectedFile();<br /> if (file == null) {<br /> return null;<br /> }<br /> System.out.println(file); // C:/Documents and Settings/Administrator/桌面/123<br /> String locatorString = file.getAbsolutePath();<br /> System.out.println(locatorString); // C:/Documents and Settings/Administrator/桌面/123<br /> if (!locatorString.endsWith(".QUICKTIME")) { // 没有后缀的话就程式化地加上 .QUICKTIME 的后缀！<br /> locatorString += ".QUICKTIME";<br /> }<br /> locatorString = "file://" + locatorString;<br /> System.out.println(locatorString); // file://C:/Documents and Settings/Administrator/桌面/123.QUICKTIME<br /> return locatorString;<br /> }</p> <p> @SuppressWarnings("unchecked")<br /> private CaptureDeviceInfo getCaptureDeviceInfo() {<br /> // 以下是原来的代码，害惨我了，老是找不到我的摄像头，原来是因为我的摄像头输出不属于 RGB 格式！<br /> // Format videoFormat = new VideoFormat(VideoFormat.RGB);<br /> Format videoFormat = new VideoFormat(VideoFormat.MJPG); // 在改成 MJPG 后顺利找到我的视频设备<br /> Vector<CaptureDeviceInfo> deviceList = CaptureDeviceManager.getDeviceList(videoFormat);</p> <p> if (deviceList.size() < 1) {<br /> JOptionPane.showMessageDialog(this, "未检测到视频输入设备!", "错误", JOptionPane.ERROR_MESSAGE);<br /> System.exit(0);<br /> }<br /> String[] deviceNames = new String[deviceList.size()];<br /> for (int i = 0; i < deviceList.size(); i++) {<br /> deviceNames[i] = deviceList.get(i).getName();<br /> }<br /> String deviceName = (String) JOptionPane.showInputDialog(this,<br /> "请选择视频输入设备", "请选择", JOptionPane.QUESTION_MESSAGE, null, deviceNames, deviceNames[0]);<br /> if (deviceName == null) {<br /> System.exit(0);<br /> }<br /> CaptureDeviceInfo captureDevice = null;<br /> for (int i = 0; i < deviceList.size(); i++) {<br /> captureDevice = deviceList.get(i);<br /> if (deviceName.equals(captureDevice.getName())) {<br /> return captureDevice;<br /> }<br /> }<br /> return null;<br /> }</p> <p> public static void main(String[] args) {<br /> new RecordVideo();<br /> }<br /> }<br />