/*

 File: TimeCode.java

 Abstract: Demonstrates addition of a TimeCode to an existing QuickTime movie.

 Version: 1.2

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 */ 

import java.awt.*;

import java.awt.event.*;

import quicktime.*;

import quicktime.io.*;

import quicktime.qd.*;

import quicktime.std.*;

import quicktime.std.image.*;

import quicktime.std.movies.*;

import quicktime.std.movies.media.*;

import quicktime.std.qtcomponents.*;

import quicktime.util.*;

import quicktime.app.view.*;

public class TimeCode extends Frame {   

    public static void main (String args[]) {

        try {

            QTSession.open ();          

            TimeCode tc = new TimeCode("QT in Java");

                // this will lay out and resize the Frame to the size of the Movie

            tc.pack();

            tc.show();

            tc.toFront();

        } catch (QTException e) {

                // catch a userCanceledErr and just exit the program

            if (e.errorCode() != Errors.userCanceledErr)

                e.printStackTrace();

            else

                System.out.println ("UserCanceled : Application needs media file to run. Quitting....");

            QTSession.close();

            System.exit(1);

        }

    }

    TimeCode (String title) throws QTException {

        super (title);

            // prompt the user to select a movie file

        qtf = QTFile.standardGetFilePreview(QTFile.kStandardQTFileTypes);

            // open the selected file and make a Movie from it

        OpenMovieFile movieFile = OpenMovieFile.asRead(qtf);

        theMovie = Movie.fromFile (movieFile);

            // make a MovieController from the resultant Movie

            // enabling the keys so the user can interact with the movie with the keyboard

        mc = new MovieController (theMovie);

        mc.setKeysEnabled (true);

            // make a QTComponent so that the MovieController has somewhere to draw

            // and add it to the Frame

        qtc = QTFactory.makeQTComponent(mc);

        add ((Component) qtc);

            // add a file menu to add/remove time code to the movie

        new FileMenu (this);

            // add a Window Listener to this frame 

            // that will close down the QTSession, dispose of the Frame

            // which will close the window - where we exit

        addWindowListener(new WindowAdapter () {

            public void windowClosing (WindowEvent e) {

                QTSession.close();

                dispose();

            }

            public void windowClosed (WindowEvent e) { 

                System.exit(0);

            }

        });

    }

MovieController mc;

Movie theMovie;

QTComponent qtc;

QTFile qtf;

    public void goAway () {

        QTSession.close();

        dispose();

        System.exit(0);

    }

    public void addTimecodeToMovie () {     

        try {

            Track myTrack = theMovie.getIndTrackType (1, StdQTConstants.timeCodeMediaType, 

                                                        StdQTConstants.movieTrackMediaType );

                //only allow one time code track in movie

            if (myTrack != null) 

                return;

            // Get the (first) visual track; this track determines the width of the new timecode track

            Track theVisualTrack = theMovie.getIndTrackType (1, StdQTConstants.visualMediaCharacteristic, 

                                                            StdQTConstants.movieTrackCharacteristic );

            QDDimension dim = null;

            // Get movie and track attributes

            int movieTimeScale = theMovie.getTimeScale();

                // Create the timecode track and media

            if (theVisualTrack == null) {

                QDRect r = mc.getBounds();

                dim = new QDDimension (r.getWidth(), r.getHeight());

            } else {

                Media theVisualTrackMedia = Media.fromTrack (theVisualTrack);

                dim = theVisualTrack.getSize();

            }

            Track theTCTrack = theMovie.newTrack ((float)dim.getWidth(), (float)dim.getHeight(), 0);            

            TimeCodeMedia theTCMedia = new TimeCodeMedia (theTCTrack, movieTimeScale);

            TimeCoder theTimeCoder = theTCMedia.getTimeCodeHandler();

            // Set up a TimeCodeDef

            TimeCodeDef myTCDef = new TimeCodeDef();

                //30 frames a second time code reading

            int tcdFlags = StdQTConstants.tc24HourMax;

            myTCDef.setFlags (tcdFlags);

            myTCDef.setTimeScale (3000);

            myTCDef.setFrameDuration (100);

            myTCDef.setFramesPerSecond (30);

            /*

                For drop frame 29.97 fps

                tcdFlags |= StdQTConstants.tcDropFrame;

                myTCDef.setTimeScale (2997);

            */

            // Start the timecode at 0:0:0:0

            TimeCodeTime myTCTime = new TimeCodeTime (0, 0, 0, 0);

            // Change the text options to Green on Black.

            String myTCString = theTimeCoder.timeCodeToString (myTCDef, myTCTime);

            TCTextOptions myTCTextOptions = theTimeCoder.getDisplayOptions();

            int textSize = myTCTextOptions.getTXSize();

            myTCTextOptions.setForeColor (QDColor.green);

            myTCTextOptions.setBackColor (QDColor.black);

            theTimeCoder.setDisplayOptions (myTCTextOptions);

        // Figure out the timecode track geometry

            QDDimension tcDim = theTCTrack.getSize();

            tcDim.setHeight( textSize + 2 );

            theTCTrack.setSize (tcDim);

            if (dim.getHeight() > 0) {

                Matrix TCMatrix = theTCTrack.getMatrix();

                TCMatrix.translate (0, dim.getHeight());

                theTCTrack.setMatrix (TCMatrix);

            }

            // add a sample to the timecode track

            //

            // each sample in a timecode track provides timecode information for a span of movie time;

            // here, we add a single sample that spans the entire movie duration

            // the sample data contains a frame number that identifies one or more content frames

            // that use the timecode; this value (a long integer) identifies the first frame that

            // uses the timecode.  For our purposes this will probably always be zero, but it can't

            // hurt to go the full 9.

            int frameNumber = theTimeCoder.toFrameNumber (myTCTime, myTCDef);

            int[] frameNumberAr = { frameNumber };

            QTHandle myFrameNumHandle = new QTHandle (4, false);

            myFrameNumHandle.copyFromArray (0, frameNumberAr, 0, 1);

            // create and configure a new timecode description

            TimeCodeDescription myTCDescription = new TimeCodeDescription ();

            myTCDescription.setTimeCodeDef (myTCDef);           

            // edit the track media

            theTCMedia.beginEdits();    

                // since we created the track with the same timescale as the movie,

                // we don't need to convert the duration

                theTCMedia.addSample (myFrameNumHandle, 

                                        0, 

                                        myFrameNumHandle.getSize(), 

                                        theMovie.getDuration(), 

                                        myTCDescription, 

                                        1, 

                                        0);

            theTCMedia.endEdits();  

            theTCTrack.insertMedia (0, 0, theMovie.getDuration(), 1.0F);

            // this code saves the TimeCode to the movie

        /*

            OpenMovieFile outStream = OpenMovieFile.asWrite (qtf); 

            theMovie.addResource (outStream, movieInDataForkResID, qtf.getName());

            outStream.close();

        */

            // Make the timecode visible

            int tcFlags = theTimeCoder.getFlags();

            tcFlags |= StdQTConstants.tcdfShowTimeCode;

            theTimeCoder.setFlags (tcFlags, StdQTConstants.tcdfShowTimeCode);

            changedMovie ();

        } catch (QTException err) {

            err.printStackTrace();

        }

    }

    public void deleteTimeCodeTracks () {

        try {

            Track myTrack = null;

            do {

                myTrack = theMovie.getIndTrackType (1, StdQTConstants.timeCodeMediaType, 

                                                        StdQTConstants.movieTrackMediaType );

                if (myTrack != null) 

                    theMovie.removeTrack( myTrack );

            } while (myTrack != null);

            // if you previous saved the time code to the movie

            // removing the time code track you also need to update the movie file

        /*

            OpenMovieFile outStream = OpenMovieFile.asWrite (qtf); 

            theMovie.addResource (outStream, movieInDataForkResID, qtf.getName());

            outStream.close();

        */

            changedMovie();

        } catch (QTException err) {

            err.printStackTrace();

        }

    }

    private void changedMovie () throws QTException {

        // tell the controller that we have changed the movie

        mc.movieChanged();

                repaint();

        // this will resize the frame to the current (new) size of the movie

        // the QTCanvas will be resized as a result of this call

        pack();

    }

}