// media Player Player player = null; // component in which video is playing Component visualComponent = null; // controls gain, position, start, stop Component controlComponent = null; // displays progress during download Component progressBar = null; boolean firstTime = true; long CachingSize = 0L; Panel panel = null; int controlPanelHeight = 0; int videoWidth = 0; int videoHeight = 0; /** * Read the applet file parameter and create the media * player. */ public void init() { //$ System.out.println("Applet.init() is called"); setLayout(null); setBackground(Color.white); panel = new Panel(); panel.setLayout( null ); add(panel); panel.setBounds(0, 0, 320, 240); // input file name from html param String mediaFile = null; // URL for our media file MediaLocator mrl = null; URL url = null; // Get the media filename info. // The applet tag should contain the path to the // source media file, relative to the html page.
if ((mediaFile = getParameter("FILE")) == null) Fatal("Invalid media file parameter"); try { url = new URL(getDocumentBase(), mediaFile); mediaFile = url.toExternalForm(); } catch (MalformedURLException mue) { }
try { // Create a media locator from the file name if ((mrl = new MediaLocator(mediaFile)) == null) Fatal("Can't build URL for " + mediaFile); /* try { JMFSecurity.enablePrivilege.invoke(JMFSecurity.privilegeManager, JMFSecurity.writePropArgs); JMFSecurity.enablePrivilege.invoke(JMFSecurity.privilegeManager, JMFSecurity.readPropArgs); JMFSecurity.enablePrivilege.invoke(JMFSecurity.privilegeManager, JMFSecurity.connectArgs); } catch (Exception e) {} */
// Create an instance of a player for this media try { player = Manager.createPlayer(mrl); } catch (NoPlayerException e) { System.out.println(e); Fatal("Could not create player for " + mrl); } // Add ourselves as a listener for a player's events player.addControllerListener(this); } catch (MalformedURLException e) { Fatal("Invalid media file URL!"); } catch (IOException e) { Fatal("IO exception creating player for " + mrl); } // This applet assumes that its start() calls // player.start(). This causes the player to become // realized. Once realized, the applet will get // the visual and control panel components and add // them to the Applet. These components are not added // during init() because they are long operations that // would make us appear unresposive to the user. } /** * Start media file playback. This function is called the * first time that the Applet runs and every * time the user re-enters the page. */ public void start() { //$ System.out.println("Applet.start() is called"); // Call start() to prefetch and start the player. if (player != null) player.start(); } /** * Stop media file playback and release resource before * leaving the page. */ public void stop() { //$ System.out.println("Applet.stop() is called"); if (player != null) { player.stop(); player.deallocate(); } } public void destroy() { //$ System.out.println("Applet.destroy() is called"); player.close(); } /** * This controllerUpdate function must be defined in order to * implement a ControllerListener interface. This * function will be called whenever there is a media event */ public synchronized void controllerUpdate(ControllerEvent event) { // If we're getting messages from a dead player, // just leave if (player == null) return;
// When the player is Realized, get the visual // and control components and add them to the Applet if (event instanceof RealizeCompleteEvent) { if (progressBar != null) { panel.remove(progressBar); progressBar = null; } int width = 320; int height = 0; if (controlComponent == null) if (( controlComponent = player.getControlPanelComponent()) != null) {
} else if (event instanceof CachingControlEvent) { if (player.getState() > Controller.Realizing) return; // Put a progress bar up when downloading starts, // take it down when downloading ends. CachingControlEvent e = (CachingControlEvent) event; CachingControl cc = e.getCachingControl(); // Add the bar if not already there ... if (progressBar == null) { if ((progressBar = cc.getControlComponent()) != null) { panel.add(progressBar); panel.setSize(progressBar.getPreferredSize()); validate(); } } } else if (event instanceof EndOfMediaEvent) { // We've reached the end of the media; rewind and // start over player.setMediaTime(new Time(0)); player.start(); } else if (event instanceof ControllerErrorEvent) { // Tell TypicalPlayerApplet.start() to call it a day player = null; Fatal(((ControllerErrorEvent)event).getMessage()); } else if (event instanceof ControllerClosedEvent) { panel.removeAll(); } } void Fatal (String s) { // Applications will make various choices about what // to do here. We print a message System.err.println("FATAL ERROR: " + s); throw new Error(s); // Invoke the uncaught exception // handler System.exit() is another // choice.
http://expert.csdn.net/Expert/topic/1229/1229337.xml?temp=.1626245
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<applet code=SimplePlayerApplet.class width=640 height=510>
<param name=file value="1.MPG">
</applet> import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.lang.String;
import java.net.URL;
import java.net.MalformedURLException;
import java.io.IOException;
import java.util.Properties;
import javax.media.*;
//import com.sun.media.util.JMFSecurity;public class SimplePlayerApplet extends Applet implements ControllerListener {
// media Player
Player player = null;
// component in which video is playing
Component visualComponent = null;
// controls gain, position, start, stop
Component controlComponent = null;
// displays progress during download
Component progressBar = null;
boolean firstTime = true;
long CachingSize = 0L;
Panel panel = null;
int controlPanelHeight = 0;
int videoWidth = 0;
int videoHeight = 0; /**
* Read the applet file parameter and create the media
* player.
*/
public void init() {
//$ System.out.println("Applet.init() is called");
setLayout(null);
setBackground(Color.white);
panel = new Panel();
panel.setLayout( null );
add(panel);
panel.setBounds(0, 0, 320, 240); // input file name from html param
String mediaFile = null;
// URL for our media file
MediaLocator mrl = null;
URL url = null; // Get the media filename info.
// The applet tag should contain the path to the
// source media file, relative to the html page.
if ((mediaFile = getParameter("FILE")) == null)
Fatal("Invalid media file parameter"); try {
url = new URL(getDocumentBase(), mediaFile);
mediaFile = url.toExternalForm();
} catch (MalformedURLException mue) {
}
try {
// Create a media locator from the file name
if ((mrl = new MediaLocator(mediaFile)) == null)
Fatal("Can't build URL for " + mediaFile); /*
try {
JMFSecurity.enablePrivilege.invoke(JMFSecurity.privilegeManager,
JMFSecurity.writePropArgs);
JMFSecurity.enablePrivilege.invoke(JMFSecurity.privilegeManager,
JMFSecurity.readPropArgs);
JMFSecurity.enablePrivilege.invoke(JMFSecurity.privilegeManager,
JMFSecurity.connectArgs);
} catch (Exception e) {}
*/
// Create an instance of a player for this media
try {
player = Manager.createPlayer(mrl);
} catch (NoPlayerException e) {
System.out.println(e);
Fatal("Could not create player for " + mrl);
} // Add ourselves as a listener for a player's events
player.addControllerListener(this); } catch (MalformedURLException e) {
Fatal("Invalid media file URL!");
} catch (IOException e) {
Fatal("IO exception creating player for " + mrl);
} // This applet assumes that its start() calls
// player.start(). This causes the player to become
// realized. Once realized, the applet will get
// the visual and control panel components and add
// them to the Applet. These components are not added
// during init() because they are long operations that
// would make us appear unresposive to the user.
} /**
* Start media file playback. This function is called the
* first time that the Applet runs and every
* time the user re-enters the page.
*/ public void start() {
//$ System.out.println("Applet.start() is called");
// Call start() to prefetch and start the player.
if (player != null)
player.start();
} /**
* Stop media file playback and release resource before
* leaving the page.
*/
public void stop() {
//$ System.out.println("Applet.stop() is called");
if (player != null) {
player.stop();
player.deallocate();
}
} public void destroy() {
//$ System.out.println("Applet.destroy() is called");
player.close();
}
/**
* This controllerUpdate function must be defined in order to
* implement a ControllerListener interface. This
* function will be called whenever there is a media event
*/
public synchronized void controllerUpdate(ControllerEvent event) {
// If we're getting messages from a dead player,
// just leave
if (player == null)
return;
// When the player is Realized, get the visual
// and control components and add them to the Applet
if (event instanceof RealizeCompleteEvent) {
if (progressBar != null) {
panel.remove(progressBar);
progressBar = null;
} int width = 320;
int height = 0;
if (controlComponent == null)
if (( controlComponent =
player.getControlPanelComponent()) != null) {
controlPanelHeight = controlComponent.getPreferredSize().height;
panel.add(controlComponent);
height += controlPanelHeight;
}
if (visualComponent == null)
if (( visualComponent =
player.getVisualComponent())!= null) {
panel.add(visualComponent);
Dimension videoSize = visualComponent.getPreferredSize();
videoWidth = videoSize.width;
videoHeight = videoSize.height;
width = videoWidth;
height += videoHeight;
visualComponent.setBounds(0, 0, videoWidth, videoHeight);
} panel.setBounds(0, 0, width, height);
if (controlComponent != null) {
controlComponent.setBounds(0, videoHeight,
width, controlPanelHeight);
controlComponent.invalidate();
}
} else if (event instanceof CachingControlEvent) {
if (player.getState() > Controller.Realizing)
return;
// Put a progress bar up when downloading starts,
// take it down when downloading ends.
CachingControlEvent e = (CachingControlEvent) event;
CachingControl cc = e.getCachingControl(); // Add the bar if not already there ...
if (progressBar == null) {
if ((progressBar = cc.getControlComponent()) != null) {
panel.add(progressBar);
panel.setSize(progressBar.getPreferredSize());
validate();
}
}
} else if (event instanceof EndOfMediaEvent) {
// We've reached the end of the media; rewind and
// start over
player.setMediaTime(new Time(0));
player.start();
} else if (event instanceof ControllerErrorEvent) {
// Tell TypicalPlayerApplet.start() to call it a day
player = null;
Fatal(((ControllerErrorEvent)event).getMessage());
} else if (event instanceof ControllerClosedEvent) {
panel.removeAll();
}
} void Fatal (String s) {
// Applications will make various choices about what
// to do here. We print a message
System.err.println("FATAL ERROR: " + s);
throw new Error(s); // Invoke the uncaught exception
// handler System.exit() is another
// choice.
}
}