Exemplo n.º 1
1
 /**
  * Loads a sequence from an input stream. Returns null if an error occurs.
  *
  * @param is
  * @return
  */
 public Sequence getSequence(InputStream is) {
   try {
     if (!is.markSupported()) {
       is = new BufferedInputStream(is);
     }
     Sequence s = MidiSystem.getSequence(is);
     is.close();
     return s;
   } catch (InvalidMidiDataException ex) {
     ex.printStackTrace();
     return null;
   } catch (IOException ex) {
     ex.printStackTrace();
     return null;
   }
 }
Exemplo n.º 2
0
  public void go() {
    setUpGui();

    try {

      Sequencer sequencer = MidiSystem.getSequencer();
      sequencer.open();
      // make a sequencer and open
      sequencer.addControllerEventListener(m1, new int[] {127});
      Sequence seq = new Sequence(Sequence.PPQ, 4);
      Track track = seq.createTrack();

      int r = 0;
      for (int i = 0; i < 300; i += 4) {

        r = (int) ((Math.random() * 50) + 1);
        track.add(makeEvent(144, 1, r, 100, i));
        track.add(makeEvent(176, 1, 127, 0, i));
        track.add(makeEvent(128, 1, r, 100, i + 2));
      } // end loop

      sequencer.setSequence(seq);
      sequencer.start();
      sequencer.setTempoInBPM(120);
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  } // close method
Exemplo n.º 3
0
 {
   try {
     sq = MidiSystem.getSequencer();
   } catch (MidiUnavailableException e) {
     e.printStackTrace();
   }
 }
Exemplo n.º 4
0
  /**
   * Exports to a file.
   *
   * @param outputFileName The output file name
   * @throws InvalidFileFormatException If the file name doesn't end in .mid or .midi
   */
  public void exportToFile(String outputFileName) throws InvalidFileFormatException {
    // Check for a valid file format.
    if (!outputFileName.endsWith(".mid") && !outputFileName.endsWith(".midi")) {
      String msg = "File names must end in .mid or .midi";
      throw new InvalidFileFormatException(msg);
    }

    // Find a supported file type, and export the file.
    int[] types = MidiSystem.getMidiFileTypes(sequence);
    try {
      File outputFile = new File(outputFileName);
      MidiSystem.write(sequence, types[0], outputFile);
    } catch (IOException ex) {
      ex.printStackTrace();
      System.exit(1);
    }
  }
Exemplo n.º 5
0
 /** Creates a new MidiPlayer object. */
 public MidiPlayer() {
   try {
     sequencer = MidiSystem.getSequencer();
     sequencer.open();
     sequencer.addMetaEventListener(this);
   } catch (MidiUnavailableException ex) {
     sequencer = null;
   }
 }
Exemplo n.º 6
0
 public boolean saveMidiFile(File file) {
   try {
     int[] fileTypes = MidiSystem.getMidiFileTypes(sequence);
     if (fileTypes.length == 0) {
       System.out.println("Can't save sequence");
       return false;
     } else {
       if (MidiSystem.write(sequence, fileTypes[0], file) == -1) {
         throw new IOException("Problems writing to file");
       }
       return true;
     }
   } catch (SecurityException ex) {
     ex.printStackTrace();
     return false;
   } catch (Exception ex) {
     ex.printStackTrace();
     return false;
   }
 }
Exemplo n.º 7
0
  /** Carrega a seqüência do sistema de arquivos. Retorna null se um erro ocorrer. */
  public Sequence getSequence(String name) {

    String filename = "/recursos/sons/" + name;
    try {
      return MidiSystem.getSequence(getClass().getResource((filename)));
    } catch (InvalidMidiDataException ex) {
      ex.printStackTrace();
      return null;
    } catch (IOException ex) {
      ex.printStackTrace();
      return null;
    }
  }
Exemplo n.º 8
0
  public boolean open() {

    try {
      if (synthesizer == null) {
        if ((synthesizer = MidiSystem.getSynthesizer()) == null) {
          System.out.println("getSynthesizer() failed!");
          return false;
        }
      }
      synthesizer.open();
      sequencer = MidiSystem.getSequencer();
      sequencer.addMetaEventListener(new ProcessMeta());

      sequence = new Sequence(Sequence.PPQ, 10);
    } catch (Exception ex) {
      System.out.println("midi exception 1 ");
      ex.printStackTrace();
      return false;
    }

    System.out.println("midi opening");

    Soundbank sb = synthesizer.getDefaultSoundbank();
    if (sb != null) {
      instruments = synthesizer.getDefaultSoundbank().getInstruments();
      synthesizer.loadInstrument(instruments[0]);
    }
    MidiChannel midiChannels[] = synthesizer.getChannels();
    numChannels = midiChannels.length;
    channels = new ChannelData[midiChannels.length];
    if (channels.length == 0) return false;
    for (int i = 0; i < channels.length; i++) {
      channels[i] = new ChannelData(midiChannels[i], i);
    }
    cc = channels[0];
    return true;
  }
Exemplo n.º 9
0
  /**
   * Sets up the sequencer with a given sequence.
   *
   * @param sequenceToUse
   * @throws MidiUnavailableException
   */
  private void setUpSequencer() throws MidiUnavailableException {
    // First, get the system's default sequencer.
    try {
      sequencer = MidiSystem.getSequencer();
    } catch (MidiUnavailableException ex) {
      // Something went wrong.
      ex.printStackTrace();
      System.exit(1);
    }

    // If there is none, throw an exception.
    if (sequencer == null) {
      String msg = "Cannot find a sequencer";
      throw new MidiUnavailableException(msg);
    }

    // Set up the transmitter and receiver of the synth to play the song.
    linkTransmitterToReceiver();
  }
Exemplo n.º 10
0
  /** Gets the default transmitter and receiver, and then links them. */
  private void linkTransmitterToReceiver() {
    try {
      // Set up the sequencer (including its tempo)
      sequencer.open();
      sequencer.setSequence(sequence);
      sequencer.setTempoInBPM(song.getBPM());

      // Get the system's default synthesizer and set that up, too.
      Synthesizer synth = MidiSystem.getSynthesizer();
      synth.open();

      // Get the receiver and transmitter to use and set those up.
      Receiver receiver = synth.getReceiver();
      Transmitter transmitter = sequencer.getTransmitter();
      transmitter.setReceiver(receiver);
    } catch (Exception ex) {
      // Something went wrong.
      ex.printStackTrace();
      System.exit(1);
    }
  }
Exemplo n.º 11
0
 private static void playMidi(String name, boolean loop, double volume)
     throws MidiUnavailableException, FileNotFoundException, IOException,
         InvalidMidiDataException {
   // Obtains the default Sequencer connected to a default device.
   Sequencer sequencer = MidiSystem.getSequencer();
   // Opens the device, indicating that it should now acquire any system resources it requires and
   // become operational.
   sequencer.open();
   // create a stream from a file
   InputStream is = new BufferedInputStream(new FileInputStream(new File(path + name)));
   // Sets the current sequence on which the sequencer operates.
   // The stream must point to MIDI file data.
   sequencer.setSequence(is);
   // Set looping
   if (loop) {
     sequencer.setLoopCount(LOOP_CONTINUOUSLY);
   }
   // Starts playback of the MIDI data in the currently loaded sequence.
   sequencer.start();
   midiMap.put(name, sequencer);
 }
Exemplo n.º 12
0
  public void play(String name, String version, String vendor, String desc) throws Exception {
    Info port = null;
    for (Info info : MidiSystem.getMidiDeviceInfo()) {
      if (name == null && version == null && vendor == null && desc == null) {
        System.err.println(
            "At least one of name, version, vendor, or description must be specified.");
        break;
      }
      if (name != null && !info.getName().equals(name)) {
        continue;
      }
      if (vendor != null && !info.getVendor().equals(vendor)) {
        continue;
      }
      if (version != null && !info.getVersion().equals(version)) {
        continue;
      }
      if (desc != null && !info.getDescription().equals(desc)) {
        continue;
      }
      try (MidiDevice dev = MidiSystem.getMidiDevice(info)) {
        Receiver r = null;
        try {
          r = dev.getReceiver();
        } catch (Exception e) {
          r = null;
        }
        if (r == null) {
          continue;
        }
      }
      if (port != null) {
        System.err.println(
            "Multiple MIDI ports match the given parameters. Please be more specific.");
        port = null;
        break;
      }
      port = info;
      continue;
    }
    if (port == null) {
      System.err.println("Unable to locate MIDI port");
      System.err.println("Available ports:");
      for (Info info : MidiSystem.getMidiDeviceInfo()) {
        try (MidiDevice dev = MidiSystem.getMidiDevice(info)) {
          Receiver r = null;
          try {
            r = dev.getReceiver();
          } catch (Exception e) {
            r = null;
          }
          if (r == null) {
            continue;
          }
        }

        System.out.println(
            "Device [name="
                + info.getName()
                + ", version="
                + info.getVersion()
                + ", vendor="
                + info.getVendor()
                + ", desc="
                + info.getDescription()
                + "]");
      }
      return;
    }

    System.out.println(
        "Using device [name="
            + port.getName()
            + ", version="
            + port.getVersion()
            + ", vendor="
            + port.getVendor()
            + ", desc="
            + port.getDescription()
            + "]");

    try (MidiDevice dev = MidiSystem.getMidiDevice(port)) {
      int channel = CHANNEL_RAW_STEREO;
      dev.open();

      try (Receiver rx = dev.getReceiver()) {
        rxCleanup = rx;
        try (DataInputStream dis = new DataInputStream(new FileInputStream(ymz))) {
          resetController(rx, channel, registers);
          long startTime = System.nanoTime();

          // read a buffer
          long prevClock = 0;
          while (true) {
            long clock = dis.readLong();
            byte register = dis.readByte();
            byte value = dis.readByte();
            if (prevClock != clock) {
              sendAll(rx, channel, registers);
              prevClock = clock;
            }
            sleepUntil(startTime, clock);
            System.out.println(
                "Clock: " + clock + " register: " + register + ", value: " + (value & 0xff));
            if (register < 0 || register > 13) {
              System.err.println("Invalid register " + register + " found, ignoring.");
              continue;
            }
            registers[register] = value;
          }
        } catch (EOFException e) {
          System.err.println("EOF reached");
        } finally {
          resetController(rx, channel, registers);
          rxCleanup = null;
        }
      }
    }
  }