package rotationeffect;
/*
* @(#)TestEffect.java 1.2 01/03/13
*
* Copyright (c) 1999-2001 Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
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* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
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*
* This software is not designed or intended for use in on-line control of
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*/
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.media.Codec;
import javax.media.ConfigureCompleteEvent;
import javax.media.Controller;
import javax.media.ControllerEvent;
import javax.media.ControllerListener;
import javax.media.EndOfMediaEvent;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.PrefetchCompleteEvent;
import javax.media.Processor;
import javax.media.RealizeCompleteEvent;
import javax.media.ResourceUnavailableEvent;
import javax.media.UnsupportedPlugInException;
import javax.media.control.TrackControl;
import javax.media.format.VideoFormat;
/**
* Sample program to test the RotationEffect.
*/
public class TestEffect extends Frame implements ControllerListener {
Processor p;
Object waitSync = new Object();
boolean stateTransitionOK = true;
public TestEffect() {
super("Test RotationEffect");
}
/**
* Given a media locator, create a processor and use that processor
* as a player to playback the media.
*
* During the processor's Configured state, the RotationEffect is
* inserted into the video track.
*
* Much of the code is just standard code to present media in JMF.
*/
public boolean open(MediaLocator ml) {
try {
p = Manager.createProcessor(ml);
} catch (Exception e) {
System.err.println("Failed to create a processor from the given url: " + e);
return false;
}
p.addControllerListener(this);
// Put the Processor into configured state.
p.configure();
if (!waitForState(Processor.Configured)) {
System.err.println("Failed to configure the processor.");
return false;
}
// So I can use it as a player.
p.setContentDescriptor(null);
// Obtain the track controls.
TrackControl tc[] = p.getTrackControls();
if (tc == null) {
System.err.println("Failed to obtain track controls from the processor.");
return false;
}
// Search for the track control for the video track.
TrackControl videoTrack = null;
for (int i = 0; i < tc.length; i++) {
if (tc[i].getFormat() instanceof VideoFormat) {
videoTrack = tc[i];
break;
}
}
if (videoTrack == null) {
System.err.println("The input media does not contain a video track.");
return false;
}
System.err.println("Video format: " + videoTrack.getFormat());
// Instantiate and set the frame access codec to the data flow path.
try {
Codec codec[] = { new RotationEffect() };
videoTrack.setCodecChain(codec);
} catch (UnsupportedPlugInException e) {
System.err.println("The processor does not support effects.");
}
// Realize the processor.
p.prefetch();
if (!waitForState(Controller.Prefetched)) {
System.err.println("Failed to realize the processor.");
return false;
}
// Display the visual & control component if there's one.
setLayout(new BorderLayout());
Component cc;
Component vc;
if ((vc = p.getVisualComponent()) != null) {
add("Center", vc);
}
if ((cc = p.getControlPanelComponent()) != null) {
add("South", cc);
}
// Start the processor.
p.start();
setVisible(true);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent we) {
p.close();
System.exit(0);
}
});
return true;
}
public void addNotify() {
super.addNotify();
pack();
}
/**
* Block until the processor has transitioned to the given state.
* Return false if the transition failed.
*/
boolean waitForState(int state) {
synchronized (waitSync) {
try {
while (p.getState() != state && stateTransitionOK)
waitSync.wait();
} catch (Exception e) {}
}
return stateTransitionOK;
}
/**
* Controller Listener.
*/
public void controllerUpdate(ControllerEvent evt) {
if (evt instanceof ConfigureCompleteEvent ||
evt instanceof RealizeCompleteEvent ||
evt instanceof PrefetchCompleteEvent) {
synchronized (waitSync) {
stateTransitionOK = true;
waitSync.notifyAll();
}
} else if (evt instanceof ResourceUnavailableEvent) {
synchronized (waitSync) {
stateTransitionOK = false;
waitSync.notifyAll();
}
} else if (evt instanceof EndOfMediaEvent) {
p.close();
System.exit(0);
}
}
/**
* Main program
*/
public static void main(String [] args) {
if (args.length == 0) {
prUsage();
System.exit(0);
}
String url = args[0];
if (url.indexOf(":") < 0) {
prUsage();
System.exit(0);
}
MediaLocator ml;
if ((ml = new MediaLocator(url)) == null) {
System.err.println("Cannot build media locator from: " + url);
System.exit(0);
}
TestEffect fa = new TestEffect();
if (!fa.open(ml))
System.exit(0);
}
static void prUsage() {
System.err.println("Usage: java TestEffect <url>");
}
}