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/*
* CreateEmptySequence.java
*
* TODO: short description
*/
/*
* Copyright (c) 2000 by Matthias Pfisterer <Matthias.Pfisterer@web.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
import java.io.File;
import java.io.IOException;
import javax.sound.midi.Sequence;
import javax.sound.midi.MetaMessage;
import javax.sound.midi.MidiEvent;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Track;
import javax.sound.midi.InvalidMidiDataException;
/** Creates a Sequence with only a end-of-track message.
*/
public class CreateEmptySequence
{
public static void main(String[] args)
{
if (args.length != 4)
{
out("usage:");
out("java CreateEmptySequence <duration> <tempo_in_MPQ> <resolution> <midifile>");
System.exit(1);
}
long lDuration = Long.parseLong(args[0]);
int nTempoInMPQ = Integer.parseInt(args[1]);
int nResolution = Integer.parseInt(args[2]);
String strFilename = args[3];
out("Clock distance (s): " + nTempoInMPQ / 24);
out("Tick distance (s): " + nTempoInMPQ / nResolution);
Sequence sequence = null;
try
{
sequence = new Sequence(Sequence.PPQ,
nResolution);
Track track = sequence.createTrack();
MetaMessage mm = null;
MidiEvent me = null;
mm = new MetaMessage();
byte[] abTempo = new byte[3];
abTempo[0] = (byte) ((nTempoInMPQ >> 16) & 0xFF);
abTempo[1] = (byte) ((nTempoInMPQ >> 8) & 0xFF);
abTempo[2] = (byte) ((nTempoInMPQ) & 0xFF);
mm.setMessage(0x51, abTempo, 3);
me = new MidiEvent(mm, 0);
track.add(me);
mm = new MetaMessage();
mm.setMessage(0x2F, new byte[0], 0);
me = new MidiEvent(mm, lDuration);
track.add(me);
}
catch (InvalidMidiDataException e)
{
e.printStackTrace();
System.exit(1);
}
try
{
MidiSystem.write(sequence, 0, new File(strFilename));
}
catch (IOException e)
{
e.printStackTrace();
System.exit(1);
}
/*
* This is only necessary because of a bug in the Sun jdk1.3
*/
System.exit(0);
}
private static void out(String strMessage)
{
System.out.println(strMessage);
}
}
/*** CreateEmptySequence.java ***/
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