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Help - Processor Usage Rockets and playback flickers???

Hi

I've written a java app which plays a movie (from a
file) full screen. When the movie finishes
TimeBaseExtremesCallBack gets called (end of movie)
and the program plays a different movie.

To load the new movie I call the setMovie() method on
the Movie Controller.

This works fine - sort of, but after playing 10-15
movies the processor usage rockets to 100% and the
movie flickers terribly.

I'm woried that I'm not releasing the previous movies
correctly but can't find any information in the api on
how to do this.

Here is my code (sorry its not tidy but I'm working on
a quick turnaround demo).

Any help would be greatly appreciated.


Steve Johnston


Code
====

package tutorial;

import java.awt.*;
import java.awt.event.*;

import quicktime.*;
import quicktime.io.*;
import quicktime.app.display.*
import quicktime.std.*;
import quicktime.std.movies.*;
import quicktime.qd.*
import quicktime.std.movies.media.DataRef;
import quicktime.std.StdQTException;
import quicktime.app.display.FullScreenWindow;
import quicktime.app.players.QTPlayer;
import quicktime.util.StringHandle;


public class Play extends Frame
{

public static void main (String[] args)
{

try
{
QTSession.open();
Play pm = new Play();

}
catch (QTRuntimeException qre)
{
System.out.println("Runtime Exception: " +
qre.getMessage());

}
catch (QTException qte)
{
System.out.println("Play.main(): " +
qte.getMessage());

if (Vars.DEBUG)
qte.printStackTrace();
}
}

public Movie getMovieFromLocation(String filename)
throws QTRuntimeException
{
if (Vars.DEBUG)
System.out.println("Entered
Play.getMovieFromLocation() - " + filename);

try
{
DataRef urlMovie = new DataRef(filename);
return Movie.fromDataRef
(urlMovie,StdQTConstants4.newMovieAsyncOK);
}
catch (QTException e)
{
System.out.println("Play.getMovieFromLocation(): "
+ e.getMessage());

if (Vars.DEBUG)
e.printStackTrace();
}

return null;

}

public Play() throws QTRuntimeException
{
super ("Play");

if (Vars.DEBUG)
System.out.println("Entered Play()");

gdb = new GeoDatabase();

try
{
// Get current Default Screen Size
Toolkit tk = Toolkit.getDefaultToolkit();
dimension = tk.getScreenSize();

if (Vars.DEBUG)
System.out.println("Maximum Screen Size: Width: "
+ dimension.width + " Height: " + dimension.height);

// Create Full Screen Window for Movies
w = new FullScreenWindow(new FullScreen(), this);
w.setBackground (Color.black);


if (Vars.DEBUG)
{
System.out.println("Full Screen Windows
Created.");
System.out.println("Getting Canvas...");
}

// Set up QTPLayer, Movie Controller and Movie
mc = new MovieController
(getMovieFromLocation(getNextMovieName()));
mc.setKeysEnabled (true);
qtp = new QTPlayer (mc);
qtp.setDisplayBounds(new QDRect(dimension.width,
dimension.height));

// Hide Controller
mc.setVisible(false);

// setup Canvas
myQTCanvas = new
QTCanvas(QTCanvas.kPerformanceResize, 0.5F, 0.5F);

// Add player to canvas, and then canvas to full
screen
myQTCanvas.setClient(qtp, true);
w.add(myQTCanvas);

w.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));

// Check if only film segment required
mc.getMovie().setPreviewMode(false);
mc.getMovie().start();

theMoviesTimeBase = mc.getMovie().getTimeBase();
theMoviesExtremeCallback = new
TimeBaseExtremesCallBack(theMoviesTimeBase,
StdQTConstants.triggerAtStop ); // this callback is
triggered when the movie stops
theMoviesExtremeCallback.callMeWhen ();

if (Vars.DEBUG)
System.out.println("Showing Window...");

HideFSWindow hw = new HideFSWindow (w, myQTCanvas);
w.addMouseListener (hw);
myQTCanvas.addMouseListener (hw);

w.show();
w.toFront();
}
catch (QTException err)
{
System.out.println("Play.Play(): " +
err.getMessage());

if (Vars.DEBUG)
err.printStackTrace();
}
catch (Exception e){}

System.out.println("Play : Completed");
}

public String getNextMovieName() throws
QTRuntimeException
{
gm = new GeoMovie(movies[movieCounter++]);
if (movieCounter == movies.length)
movieCounter=0;

return gm.getMovieURL();
}

// Member Variables
Movie currentMovie;
MovieController mc;
QTPlayer qtp;
QTDrawable qtd;
TimeBase theMoviesTimeBase;
TimeBaseExtremesCallBack theMoviesExtremeCallback;
FullScreenWindow w;
Dimension dimension; // Full Screen Size
QTCanvas myQTCanvas; // Current Canvas
int movieCounter = 0;
MovieCanvas movCan = new MovieCanvas();
String[] movies =
{"file://c:\\film\\advert.mpeg","file://c:\\film\\UBS_TOKYO_1hbr.mpg","file://c:\\avi\\whacking.mpeg","file://c:\\film\\advert.mpeg","file://c:\\avi\\housetour2.mov"};//,};



class TimeBaseExtremesCallBack extends
quicktime.std.clocks.ExtremesCallBack {


public TimeBaseExtremesCallBack(TimeBase tb, int
flag) throws QTException
{

super(tb, flag);

}


public void execute() throws QTRuntimeException
{

try
{
if (Vars.DEBUG)
System.out.println("Entered execute()");


if (Vars.DEBUG)
System.out.println("removing client from canvas
and setting new one.");

myQTCanvas.removeClient();
myQTCanvas.setClient(qtp,new
QDRect(dimension.width, dimension.height));

if (Vars.DEBUG)
System.out.println("Setting new movie");


mc.setMovie(getMovieFromLocation(getNextMovieName()),
myQTCanvas.getPort(), new QDPoint(0,0));

if (Vars.DEBUG)
System.out.println("Resizing qtp");

qtp.setDisplayBounds(new QDRect(dimension.width,
dimension.height));

// Check if only film segment required
if (gm.getMovieDuration() != 0)
{
if (Vars.DEBUG)
System.out.println("Movie segment : " +
gm.getMovieURL() + "\t From: " +
gm.getMovieStartTime() + "\t Dur: " +
gm.getMovieDuration());


mc.getMovie().setPreviewTime(gm.getMovieStartTime(),
gm.getMovieDuration());
mc.getMovie().setPreviewMode(true);
mc.getMovie().playPreview();

}
else
{
mc.getMovie().setPreviewMode(false);
mc.getMovie().start();
}
theMoviesExtremeCallback.cancelAndCleanup();
theMoviesTimeBase = mc.getMovie().getTimeBase();
theMoviesExtremeCallback = new
TimeBaseExtremesCallBack(theMoviesTimeBase,
StdQTConstants.triggerAtStop ); // this callback is
triggered when the movie stops
theMoviesExtremeCallback.callMeWhen ();


HideFSWindow hw = new HideFSWindow (w, myQTCanvas);
w.addMouseListener (hw);
myQTCanvas.addMouseListener (hw);

System.out.println("\n\n=============");
System.out.println("Next Movie:\n=============");
Runtime rt = Runtime.getRuntime();
System.out.println("Free Memory: " +
rt.freeMemory());
System.out.println("TotalMemory (JVM): " +
rt.totalMemory());


}
catch (StdQTException
e){System.out.println(e.getMessage());}
catch (QTException
qte){System.out.println(qte.getMessage());}
catch (Exception ex) {System.out.println("Exception:
" + ex.getMessage());}

if (Vars.DEBUG)
System.out.println("Showing Window...");
}
}

static class HideFSWindow extends MouseAdapter
{
HideFSWindow (FullScreenWindow w, QTCanvas c)
{
this.w = w;
this.c = c;
}

private FullScreenWindow w;
private QTCanvas c;

public void mousePressed (MouseEvent me)
{
c.removeClient();
w.hide();
QTSession.close();
System.exit(0);
}
}


}



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