Java tutorial
package org.jcodec.player.app; import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.File; import java.io.IOException; import java.net.URL; import java.util.List; import javax.swing.JFrame; import org.apache.commons.io.FileUtils; import org.apache.http.impl.client.DefaultHttpClient; import org.jcodec.common.model.RationalLarge; import org.jcodec.player.Player; import org.jcodec.player.Stepper; import org.jcodec.player.filters.JCodecVideoSource; import org.jcodec.player.filters.JSoundAudioOut; import org.jcodec.player.filters.audio.AudioMixer; import org.jcodec.player.filters.audio.AudioSource; import org.jcodec.player.filters.audio.JCodecAudioSource; import org.jcodec.player.filters.audio.AudioMixer.Pin; import org.jcodec.player.filters.http.HttpMedia; import org.jcodec.player.filters.http.HttpPacketSource; import org.jcodec.player.ui.SwingVO; /** * This class is part of JCodec ( www.jcodec.org ) This software is distributed * under FreeBSD License * * @author The JCodec project * */ public class PlayerMain implements KeyListener { private Player player; private Stepper stepper; private JCodecVideoSource video; private SwingVO vo; private AudioMixer mixer; public static void main(String[] args) throws Exception { if (args.length < 1) { System.out.println("Syntax: <url>"); return; } new PlayerMain(new URL(args[0])); } public PlayerMain(URL url) throws IOException { JFrame frame = new JFrame("Player"); vo = new SwingVO(); frame.getContentPane().add(vo, BorderLayout.CENTER); // Finish setting up the frame, and show it. frame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); vo.setVisible(true); File cacheWhere = new File(System.getProperty("user.home"), "Library/JCodec"); FileUtils.forceMkdir(cacheWhere); HttpMedia http = new HttpMedia(url, cacheWhere); final HttpPacketSource videoTrack = http.getVideoTrack(); video = new JCodecVideoSource(videoTrack); List<HttpPacketSource> audioTracks = http.getAudioTracks(); AudioSource[] audio = new AudioSource[audioTracks.size()]; for (int i = 0; i < audioTracks.size(); i++) { audio[i] = new JCodecAudioSource(audioTracks.get(i)); } mixer = new AudioMixer(2, audio); player = new Player(video, mixer, vo, new JSoundAudioOut()); frame.addKeyListener(this); frame.pack(); frame.setVisible(true); frame.setSize(new Dimension(768, 596)); player.play(); } public void keyTyped(KeyEvent e) { } public void keyReleased(KeyEvent e) { } public void keyPressed(KeyEvent e) { if (e.getKeyCode() == KeyEvent.VK_SPACE) { if (player.getStatus() == Player.Status.PAUSED) { if (stepper != null) { player.seek(stepper.getPos()); stepper = null; } player.play(); } else player.pause(); } else if (e.getKeyCode() == KeyEvent.VK_DOWN) { RationalLarge pos = player.getPos(); player.seek(new RationalLarge(pos.getNum() - pos.getDen() * 15, pos.getDen())); } else if (e.getKeyCode() == KeyEvent.VK_UP) { RationalLarge pos = player.getPos(); player.seek(new RationalLarge(pos.getNum() + pos.getDen() * 15, pos.getDen())); } else if (e.getKeyCode() == KeyEvent.VK_LEFT) { // if (player.getStatus() != Player.Status.PAUSED) { // player.pause(); // return; // } // // try { // if (stepper == null) { // stepper = new Stepper(video, mixer, vo, new JSoundAudioOut()); // stepper.setListeners(player.getListeners()); // stepper.gotoFrame(player.getFrameNo()); // } // stepper.prev(); // } catch (IOException e1) { // System.out.println("Couldn't step " + e1.getMessage()); // } } else if (e.getKeyCode() == KeyEvent.VK_RIGHT) { if (player.getStatus() != Player.Status.PAUSED) { player.pause(); return; } try { if (stepper == null) { stepper = new Stepper(video, mixer, vo, new JSoundAudioOut()); stepper.setListeners(player.getListeners()); stepper.gotoFrame(player.getFrameNo()); } stepper.next(); } catch (IOException e1) { System.out.println("Couldn't step " + e1.getMessage()); } } else if (e.getKeyCode() == KeyEvent.VK_ESCAPE) { player.destroy(); System.exit(-1); } else if (e.getKeyChar() >= '0' && e.getKeyChar() < '9') { int ch = e.getKeyChar() - '0'; for (Pin pin : mixer.getPins()) { if (ch < pin.getLabels().length) { pin.toggle(ch); break; } else ch -= pin.getLabels().length; } } } }