JMF摄像头视频采集示例

package org.bo; import java.awt.BorderLayout; import java.awt.Component; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File; import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; import java.util.Vector; import javax.media.CaptureDeviceInfo; import javax.media.CaptureDeviceManager; import javax.media.DataSink; import javax.media.Format; import javax.media.Manager; import javax.media.MediaLocator; import javax.media.Player; import javax.media.Processor; import javax.media.ProcessorModel; import javax.media.control.FormatControl; import javax.media.format.VideoFormat; import javax.media.protocol.DataSource; import javax.media.protocol.FileTypeDescriptor; import javax.media.protocol.SourceCloneable; import javax.swing.JButton; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; public class MainFrame extends JFrame { CaptureDeviceInfo captureDevice; Component visualComponent; Component controlPanelComponent; Processor processor; Player player; DataSink fileWriter; FormatControl formatControl; JPanel pnlVideo = new JPanel(new BorderLayout()); JPanel contentPane; JPanel pnlControl = new JPanel(); JButton btnStart = new JButton("开始采集"); JButton btnStop = new JButton("停止采集"); JFileChooser fileChooser = new JFileChooser(); public MainFrame() { super("视频采集软件"); contentPane = (JPanel) this.getContentPane(); // this.captureDevice = getCaptureDeviceInfo(); // try { DataSource source = Manager.createDataSource(captureDevice.getLocator()); DataSource cloneableSource = Manager.createCloneableDataSource(source); player = Manager.createRealizedPlayer(((SourceCloneable)cloneableSource).createClone()); //获取默认格式 formatControl = (FormatControl) player.getControl("javax.media.control.FormatControl"); Format defaultFormat = formatControl.getFormat(); // FileTypeDescriptor outputType = new FileTypeDescriptor(FileTypeDescriptor.MSVIDEO); ProcessorModel processorModel = new ProcessorModel(cloneableSource, new Format[]{ defaultFormat }, outputType); processor = Manager.createRealizedProcessor(processorModel); } catch (Exception e) { processException(e); } // // controlPanelComponent = player.getControlPanelComponent(); // if (controlPanelComponent != null) { // contentPane.add("North", controlPanelComponent); // } visualComponent = player.getVisualComponent(); if (visualComponent!=null) { pnlVideo.add(visualComponent); contentPane.add(pnlVideo); } // btnStop.setEnabled(false); pnlControl.add(btnStart); pnlControl.add(btnStop); // pnlControl.add(formatControl.getControlComponent()); // pnlControl.setPreferredSize(new Dimension(120, 0)); contentPane.add("South", pnlControl); // btnStart.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { start(); } }); btnStop.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { stop(); } }); // pack(); setResizable(false); setDefaultCloseOperation(EXIT_ON_CLOSE); } private void start() { String locatorString = getLocatorString(); if(locatorString==null) { return; } // btnStart.setEnabled(false); // DataSource source = processor.getDataOutput(); MediaLocator dest = new MediaLocator( locatorString ); try { //本地文件传输 fileWriter = Manager.createDataSink(source, dest); fileWriter.open(); fileWriter.start(); } catch (Exception e) { processException(e); } processor.start(); player.start(); // btnStop.setEnabled(true); } private void stop() { btnStop.setEnabled(false); // player.stop(); processor.stop(); try { fileWriter.stop(); fileWriter.close(); } catch (IOException e) { processException(e); } // btnStart.setEnabled(true); } private void processException(Exception e) { e.printStackTrace(); JOptionPane.showMessageDialog(this, e.toString(), "错误", JOptionPane.ERROR_MESSAGE); System.exit(0); } private String getLocatorString() { if( JFileChooser.APPROVE_OPTION != fileChooser.showSaveDialog(this)) { return null; } File file = fileChooser.getSelectedFile(); if (file==null) { return null; } String locatorString = file.getAbsolutePath(); if( !locatorString.endsWith(".avi" )) { locatorString += ".avi"; } locatorString = "file://" + locatorString; return locatorString; } private CaptureDeviceInfo getCaptureDeviceInfo() { Format videoFormat = new VideoFormat(VideoFormat.RGB); Vector<CaptureDeviceInfo> deviceList = CaptureDeviceManager.getDeviceList(videoFormat); if(deviceList.size()<1) { JOptionPane.showMessageDialog(this, "未检测到视频输入设备。", "错误", JOptionPane.ERROR_MESSAGE); System.exit(0); } String[] deviceNames = new String[deviceList.size()]; for (int i = 0; i < deviceList.size(); i ++ ) { deviceNames[i] = deviceList.get(i).getName(); } String deviceName = (String) JOptionPane.showInputDialog(this, "请选择视频输入设备", "请选择", JOptionPane.QUESTION_MESSAGE, null, deviceNames, deviceNames[0]); if (deviceName==null) { System.exit(0); } // CaptureDeviceInfo captureDevice; for (int i = 0; i < deviceList.size(); i ++ ) { captureDevice = deviceList.get(i); if( deviceName.equals(captureDevice.getName()) ) { return captureDevice; } } return null; } }