Example usage for javax.sound.midi MidiMessage getMessage

Introduction

In this page you can find the example usage for javax.sound.midi MidiMessage getMessage.

Prototype

public byte[] getMessage() 

Source Link

Document

Obtains the MIDI message data.

Usage

From source file:at.ofai.music.util.WormFileParseException.java

public static EventList readMidiFile(String fileName, int skipTrackFlag) {
    EventList list = new EventList();
    Sequence s;// ww  w .  java2 s.  c o  m
    try {
        s = MidiSystem.getSequence(new File(fileName));
    } catch (Exception e) {
        e.printStackTrace();
        return list;
    }
    double midiTempo = 500000;
    double tempoFactor = midiTempo / s.getResolution() / 1000000.0;
    // System.err.println(tempoFactor);
    Event[][] noteOns = new Event[128][16];
    Track[] tracks = s.getTracks();
    for (int t = 0; t < tracks.length; t++, skipTrackFlag >>= 1) {
        if ((skipTrackFlag & 1) == 1)
            continue;
        for (int e = 0; e < tracks[t].size(); e++) {
            MidiEvent me = tracks[t].get(e);
            MidiMessage mm = me.getMessage();
            double time = me.getTick() * tempoFactor;
            byte[] mesg = mm.getMessage();
            int channel = mesg[0] & 0x0F;
            int command = mesg[0] & 0xF0;
            if (command == ShortMessage.NOTE_ON) {
                int pitch = mesg[1] & 0x7F;
                int velocity = mesg[2] & 0x7F;
                if (noteOns[pitch][channel] != null) {
                    if (velocity == 0) { // NOTE_OFF in disguise :(
                        noteOns[pitch][channel].keyUp = time;
                        noteOns[pitch][channel].pedalUp = time;
                        noteOns[pitch][channel] = null;
                    } else
                        System.err.println("Double note on: n=" + pitch + " c=" + channel + " t1="
                                + noteOns[pitch][channel] + " t2=" + time);
                } else {
                    Event n = new Event(time, 0, 0, pitch, velocity, -1, -1, 0, ShortMessage.NOTE_ON, channel,
                            t);
                    noteOns[pitch][channel] = n;
                    list.add(n);
                }
            } else if (command == ShortMessage.NOTE_OFF) {
                int pitch = mesg[1] & 0x7F;
                noteOns[pitch][channel].keyUp = time;
                noteOns[pitch][channel].pedalUp = time;
                noteOns[pitch][channel] = null;
            } else if (command == 0xF0) {
                if ((channel == 0x0F) && (mesg[1] == 0x51)) {
                    midiTempo = (mesg[5] & 0xFF) | ((mesg[4] & 0xFF) << 8) | ((mesg[3] & 0xFF) << 16);
                    tempoFactor = midiTempo / s.getResolution() / 1000000.0;
                    //   System.err.println("Info: Tempo change: " + midiTempo +
                    //                  "  tf=" + tempoFactor);
                }
            } else if (mesg.length > 3) {
                System.err.println("midi message too long: " + mesg.length);
                System.err.println("\tFirst byte: " + mesg[0]);
            } else {
                int b0 = mesg[0] & 0xFF;
                int b1 = -1;
                int b2 = -1;
                if (mesg.length > 1)
                    b1 = mesg[1] & 0xFF;
                if (mesg.length > 2)
                    b2 = mesg[2] & 0xFF;
                list.add(new Event(time, time, -1, b1, b2, -1, -1, 0, b0 & 0xF0, b0 & 0x0F, t));
            }
        }
    }
    for (int pitch = 0; pitch < 128; pitch++)
        for (int channel = 0; channel < 16; channel++)
            if (noteOns[pitch][channel] != null)
                System.err.println("Missing note off: n=" + noteOns[pitch][channel].midiPitch + " t="
                        + noteOns[pitch][channel].keyDown);
    return list;
}

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From source file:de.ailis.midi4js.MessageReceiver.java

/**
 * @see javax.sound.midi.Receiver#send(javax.sound.midi.MidiMessage, long)
 *//*from  w  ww .j  a  v a 2s.  c om*/
@Override
public void send(final MidiMessage message, final long timeStamp) {
    try {
        final JSONStringer json = new JSONStringer();
        json.object();
        json.key("status").value(message.getStatus());
        json.key("message");
        json.array();
        final byte[] data = message.getMessage();
        final int max = Math.min(data.length, message.getLength());
        for (int i = 0; i < max; i++)
            json.value(data[i] & 0xff);
        json.endArray();
        if (message instanceof ShortMessage)
            processShortMessage((ShortMessage) message, json);
        else if (message instanceof MetaMessage)
            processMetaMessage((MetaMessage) message, json);
        else if (message instanceof SysexMessage)
            processSysexMessage((SysexMessage) message, json);
        json.endObject();
        this.applet.execJSMethod("messageReceived", System.identityHashCode(this), json.toString(), timeStamp);
    } catch (final JSONException e) {
        throw new RuntimeException(e.toString(), e);
    }
}

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From source file:com.rockhoppertech.music.midi.js.MIDIEvent.java

/**
 * Creates a new <code>MIDIEvent</code> instance from JavaSound's MidiEvent.
 * /*from  w  w w .  j  av  a 2  s . c o m*/
 * @param e
 *            a <code>MidiEvent</code> object.
 */
public MIDIEvent(MidiEvent e) {
    tick = e.getTick();
    startBeat = (double) (tick) / (double) (division);
    MidiMessage mm = e.getMessage();
    byte[] ba = mm.getMessage();
    logger.debug("Original message: " + ba.length);
    for (byte element : ba) {
        logger.debug(Integer.toHexString(element & 0xf0) + " ");
    }

    if (mm instanceof ShortMessage) {
        logger.debug("Is short message");
        ShortMessage se = (ShortMessage) mm;
        bytes = new byte[2];
        bytes[0] = (byte) se.getData1();
        bytes[1] = (byte) se.getData2();
    } else if (mm instanceof SysexMessage) {
        logger.debug("is sysex message");
        SysexMessage sex = (SysexMessage) mm;
        bytes = sex.getData();
    } else if (mm instanceof MetaMessage) {
        logger.debug("is meta message");
        MetaMessage meta = (MetaMessage) mm;
        bytes = meta.getData();
    }

    status = mm.getStatus();
    logger.debug("Status: " + Integer.toHexString(status));
    if (mm instanceof MetaMessage) {
        metaMessageType = ((MetaMessage) mm).getType();
    }

    logger.debug("Constructed: " + toString());
}

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