Examples with Receiver javax.sound.midi.Receiver used on opensource projects

Example 6 with Receiver

use of javax.sound.midi.Receiver in project jdk8u_jdk by JetBrains.

the class SoftMidiAudioFileReader method getAudioInputStream.

public AudioInputStream getAudioInputStream(Sequence seq) throws UnsupportedAudioFileException, IOException {
    AudioSynthesizer synth = (AudioSynthesizer) new SoftSynthesizer();
    AudioInputStream stream;
    Receiver recv;
    try {
        stream = synth.openStream(format, null);
        recv = synth.getReceiver();
    } catch (MidiUnavailableException e) {
        throw new IOException(e.toString());
    }
    float divtype = seq.getDivisionType();
    Track[] tracks = seq.getTracks();
    int[] trackspos = new int[tracks.length];
    int mpq = 500000;
    int seqres = seq.getResolution();
    long lasttick = 0;
    long curtime = 0;
    while (true) {
        MidiEvent selevent = null;
        int seltrack = -1;
        for (int i = 0; i < tracks.length; i++) {
            int trackpos = trackspos[i];
            Track track = tracks[i];
            if (trackpos < track.size()) {
                MidiEvent event = track.get(trackpos);
                if (selevent == null || event.getTick() < selevent.getTick()) {
                    selevent = event;
                    seltrack = i;
                }
            }
        }
        if (seltrack == -1)
            break;
        trackspos[seltrack]++;
        long tick = selevent.getTick();
        if (divtype == Sequence.PPQ)
            curtime += ((tick - lasttick) * mpq) / seqres;
        else
            curtime = (long) ((tick * 1000000.0 * divtype) / seqres);
        lasttick = tick;
        MidiMessage msg = selevent.getMessage();
        if (msg instanceof MetaMessage) {
            if (divtype == Sequence.PPQ) {
                if (((MetaMessage) msg).getType() == 0x51) {
                    byte[] data = ((MetaMessage) msg).getData();
                    if (data.length < 3) {
                        throw new UnsupportedAudioFileException();
                    }
                    mpq = ((data[0] & 0xff) << 16) | ((data[1] & 0xff) << 8) | (data[2] & 0xff);
                }
            }
        } else {
            recv.send(msg, curtime);
        }
    }
    long totallen = curtime / 1000000;
    long len = (long) (stream.getFormat().getFrameRate() * (totallen + 4));
    stream = new AudioInputStream(stream, stream.getFormat(), len);
    return stream;
}

Example 7 with Receiver

use of javax.sound.midi.Receiver in project jdk8u_jdk by JetBrains.

the class TestPreciseTimestampRendering method test.

public static void test(Soundbank soundbank) throws Exception {
    // Create instance of synthesizer using the testing soundbank above
    AudioSynthesizer synth = new SoftSynthesizer();
    AudioInputStream stream = synth.openStream(format, null);
    synth.unloadAllInstruments(synth.getDefaultSoundbank());
    synth.loadAllInstruments(soundbank);
    Receiver recv = synth.getReceiver();
    // Set volume to max and turn reverb off
    ShortMessage reverb_off = new ShortMessage();
    reverb_off.setMessage(ShortMessage.CONTROL_CHANGE, 91, 0);
    recv.send(reverb_off, -1);
    ShortMessage full_volume = new ShortMessage();
    full_volume.setMessage(ShortMessage.CONTROL_CHANGE, 7, 127);
    recv.send(full_volume, -1);
    Random random = new Random(3485934583945l);
    // Create random timestamps
    long[] test_timestamps = new long[30];
    for (int i = 1; i < test_timestamps.length; i++) {
        test_timestamps[i] = i * 44100 + (int) (random.nextDouble() * 22050.0);
    }
    // Send midi note on message to synthesizer
    for (int i = 0; i < test_timestamps.length; i++) {
        ShortMessage midi_on = new ShortMessage();
        midi_on.setMessage(ShortMessage.NOTE_ON, 69, 127);
        recv.send(midi_on, (long) ((test_timestamps[i] / 44100.0) * 1000000.0));
    }
    // Measure timing from rendered audio
    float[] fbuffer = new float[100];
    byte[] buffer = new byte[fbuffer.length * format.getFrameSize()];
    long firsts = -1;
    int counter = 0;
    long s = 0;
    long max_jitter = 0;
    outerloop: for (int k = 0; k < 10000000; k++) {
        stream.read(buffer);
        AudioFloatConverter.getConverter(format).toFloatArray(buffer, fbuffer);
        for (int i = 0; i < fbuffer.length; i++) {
            if (fbuffer[i] != 0) {
                if (firsts == -1)
                    firsts = s;
                long measure_time = (s - firsts);
                long predicted_time = test_timestamps[counter];
                long jitter = Math.abs(measure_time - predicted_time);
                if (jitter > 10)
                    max_jitter = jitter;
                counter++;
                if (counter == test_timestamps.length)
                    break outerloop;
            }
            s++;
        }
    }
    synth.close();
    if (counter == 0)
        throw new Exception("Nothing was measured!");
    if (max_jitter != 0) {
        throw new Exception("Jitter has occurred! " + "(max jitter = " + max_jitter + ")");
    }
}

Example 8 with Receiver

use of javax.sound.midi.Receiver in project jdk8u_jdk by JetBrains.

the class GetReceivers method main.

public static void main(String[] args) throws Exception {
    AudioSynthesizer synth = new SoftSynthesizer();
    synth.open(new DummySourceDataLine(), null);
    assertTrue(synth.getReceivers().size() == 0);
    Receiver recv = synth.getReceiver();
    assertTrue(synth.getReceivers().size() == 1);
    recv.close();
    assertTrue(synth.getReceivers().size() == 0);
    synth.close();
}

Example 9 with Receiver

use of javax.sound.midi.Receiver in project jdk8u_jdk by JetBrains.

the class GetReceiver method main.

public static void main(String[] args) throws Exception {
    AudioSynthesizer synth = new SoftSynthesizer();
    synth.open(new DummySourceDataLine(), null);
    Receiver recv = synth.getReceiver();
    assertTrue(recv != null);
    Receiver recv2 = synth.getReceiver();
    assertTrue(recv2 != null);
    assertTrue(recv2 != recv);
    synth.close();
}

Example 10 with Receiver

use of javax.sound.midi.Receiver in project jdk8u_jdk by JetBrains.

the class SoftSynthesizer method openStream.

public AudioInputStream openStream(AudioFormat targetFormat, Map<String, Object> info) throws MidiUnavailableException {
    if (isOpen())
        throw new MidiUnavailableException("Synthesizer is already open");
    synchronized (control_mutex) {
        gmmode = 0;
        voice_allocation_mode = 0;
        processPropertyInfo(info);
        open = true;
        implicitOpen = false;
        if (targetFormat != null)
            setFormat(targetFormat);
        if (load_default_soundbank) {
            Soundbank defbank = getDefaultSoundbank();
            if (defbank != null) {
                loadAllInstruments(defbank);
            }
        }
        voices = new SoftVoice[maxpoly];
        for (int i = 0; i < maxpoly; i++) voices[i] = new SoftVoice(this);
        mainmixer = new SoftMainMixer(this);
        channels = new SoftChannel[number_of_midi_channels];
        for (int i = 0; i < channels.length; i++) channels[i] = new SoftChannel(this, i);
        if (external_channels == null) {
            // when the synhtesizer is closed.
            if (channels.length < 16)
                external_channels = new SoftChannelProxy[16];
            else
                external_channels = new SoftChannelProxy[channels.length];
            for (int i = 0; i < external_channels.length; i++) external_channels[i] = new SoftChannelProxy();
        } else {
            // into the new one
            if (channels.length > external_channels.length) {
                SoftChannelProxy[] new_external_channels = new SoftChannelProxy[channels.length];
                for (int i = 0; i < external_channels.length; i++) new_external_channels[i] = external_channels[i];
                for (int i = external_channels.length; i < new_external_channels.length; i++) {
                    new_external_channels[i] = new SoftChannelProxy();
                }
            }
        }
        for (int i = 0; i < channels.length; i++) external_channels[i].setChannel(channels[i]);
        for (SoftVoice voice : getVoices()) voice.resampler = resampler.openStreamer();
        for (Receiver recv : getReceivers()) {
            SoftReceiver srecv = ((SoftReceiver) recv);
            srecv.open = open;
            srecv.mainmixer = mainmixer;
            srecv.midimessages = mainmixer.midimessages;
        }
        return mainmixer.getInputStream();
    }
}