java JMF调用摄像头进行视屏录制 DEMO

package com.jake.camera; import java.io.*; import java.net.URL; import java.net.MalformedURLException; import java.awt.*; import javax.swing.JFileChooser; import javax.media.*; import javax.media.control.*; import javax.media.protocol.*; import javax.media.format.VideoFormat; import javax.swing.JPanel; import javax.swing.JLabel; import javax.swing.JToolBar; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.WindowConstants; import java.awt.BorderLayout; import java.awt.event.*; public class MainFrame extends JFrame { /** * */ private static final long serialVersionUID = 1L; private JPanel centerPanel; private JLabel fileLabel; private JToolBar mainToolBar; private JLabel messageLabel; private JPanel northPanel; private JButton recordButton; private JPanel southPanel; private CamDataSource dataSource; private DataSource camSource; private DataSource recordCamSource; private DataSink dataSink; private Processor processor; private Processor recordProcessor; private CamStateHelper playhelper; private JFileChooser movieChooser; public MainFrame(CamDataSource dataSource) { this.dataSource = dataSource; this.dataSource.setParent(this); camSource = dataSource.cloneCamSource(); initComponents(); try{ processor = Manager.createProcessor(camSource); }catch (IOException e) { JOptionPane.showMessageDialog(this, "Exception creating processor: " + e.getMessage(), "Error", JOptionPane.WARNING_MESSAGE); return; }catch (NoProcessorException e) { JOptionPane.showMessageDialog(this, "Exception creating processor: " + e.getMessage(), "Error", JOptionPane.WARNING_MESSAGE); return; } playhelper = new CamStateHelper(processor); if(!playhelper.configure(10000)){ JOptionPane.showMessageDialog(this, "cannot configure processor", "Error", JOptionPane.WARNING_MESSAGE); return; } checkIncoding(processor.getTrackControls()); processor.setContentDescriptor(null); if(!playhelper.realize(10000)){ JOptionPane.showMessageDialog(this, "cannot realize processor", "Error", JOptionPane.WARNING_MESSAGE); return; } setJPEGQuality(processor, 1.0f); processor.start(); processor.getVisualComponent().setBackground(Color.gray); centerPanel.add(processor.getVisualComponent(), BorderLayout.CENTER);//视频面板 centerPanel.add(processor.getControlPanelComponent(), BorderLayout.SOUTH);//视频控制面板 } //界面初始化 private void initComponents() { northPanel = new JPanel(); messageLabel = new JLabel(); southPanel = new JPanel(); mainToolBar = new JToolBar(); recordButton = new JButton(); fileLabel = new JLabel(); centerPanel = new JPanel(); setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); setTitle("本地视频"); addWindowListener(new java.awt.event.WindowAdapter() { public void windowClosing(WindowEvent evt) { formWindowClosing(evt); } }); northPanel.setLayout(new BorderLayout()); messageLabel.setText("状态："); northPanel.add(messageLabel, BorderLayout.SOUTH); getContentPane().add(northPanel, BorderLayout.NORTH); southPanel.setLayout(new BorderLayout()); recordButton.setText("录制"); recordButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent evt) { recordButtonActionPerformed(evt); } }); mainToolBar.add(recordButton); fileLabel.setText("文件:"); mainToolBar.add(fileLabel); southPanel.add(mainToolBar, BorderLayout.CENTER); getContentPane().add(southPanel, BorderLayout.SOUTH); centerPanel.setLayout(new BorderLayout()); getContentPane().add(centerPanel, BorderLayout.CENTER); pack(); } private void formWindowClosing(java.awt.event.WindowEvent evt) { processor.close(); } //录制当前视频 private void recordButtonActionPerformed(java.awt.event.ActionEvent evt) { if(recordButton.getText().equals("录制")){ fileLabel.setText("文件:"); if (movieChooser == null) movieChooser = new JFileChooser(); movieChooser.setDialogType(JFileChooser.SAVE_DIALOG); //Add a custom file filter and disable the default //(Accept All) file filter. movieChooser.addChoosableFileFilter(new MOVFilter()); movieChooser.setAcceptAllFileFilterUsed(false); movieChooser.setFileSelectionMode(JFileChooser.FILES_ONLY); int returnVal = movieChooser.showDialog(this, "录制"); if (returnVal == JFileChooser.APPROVE_OPTION) { File file = movieChooser.getSelectedFile(); if(!file.getName().endsWith(".mov") &&!file.getName().endsWith(".MOV")) file = new File(file.toString() + ".mov"); recordToFile(file); fileLabel.setText("文件:" + file.toString()); recordButton.setText("停止"); } }else{ stopRecording(); recordButton.setText("录制"); } } void setJPEGQuality(Player p, float val) { Control cs[] = p.getControls(); QualityControl qc = null; VideoFormat jpegFmt = new VideoFormat(VideoFormat.JPEG); // Loop through the controls to find the Quality control for // the JPEG encoder. for (int i = 0; i < cs.length; i++) { if (cs[i] instanceof QualityControl && cs[i] instanceof Owned) { Object owner = ((Owned)cs[i]).getOwner(); // Check to see if the owner is a Codec. // Then check for the output format. if (owner instanceof Codec) { Format fmts[] = ((Codec)owner).getSupportedOutputFormats(null); for (int j = 0; j < fmts.length; j++) { if (fmts[j].matches(jpegFmt)) { qc = (QualityControl)cs[i]; qc.setQuality(val); break; } } } if (qc != null) break; } } } public void checkIncoding(TrackControl track[]){ for (int i = 0; i < track.length; i++) { Format format = track[i].getFormat(); if (track[i].isEnabled() && format instanceof VideoFormat) { Dimension size = ((VideoFormat)format).getSize(); float frameRate = ((VideoFormat)format).getFrameRate(); int w = (size.width % 8 == 0 ? size.width :(int)(size.width / 8) * 8); int h = (size.height % 8 == 0 ? size.height :(int)(size.height / 8) * 8); VideoFormat jpegFormat = new VideoFormat( VideoFormat.JPEG_RTP, new Dimension(w, h), Format.NOT_SPECIFIED, Format.byteArray, frameRate);