Esempio n. 1
0
  public boolean play() {

    try {
      if (playState != STOPPED) playStop();

      if (audioBytes == null) return false;

      DataLine.Info info = new DataLine.Info(Clip.class, format);

      clip = (Clip) AudioSystem.getLine(info);
      clip.addLineListener(new ClipListener());

      long clipStart = (long) (audioBytes.length * getStartTime() / (getDuration() * 1000.0));
      long clipEnd = (long) (audioBytes.length * getEndTime() / (getDuration() * 1000.0));
      if ((clipEnd - clipStart) > MAX_CLIP_LENGTH) clipEnd = clipStart + MAX_CLIP_LENGTH;
      byte[] clipBytes = new byte[(int) (clipEnd - clipStart)];
      System.arraycopy(audioBytes, (int) clipStart, clipBytes, 0, clipBytes.length);
      clip.open(format, clipBytes, 0, clipBytes.length);

      FloatControl panControl = (FloatControl) clip.getControl(FloatControl.Type.PAN);

      panControl.setValue((float) panSetting / 100.0f);

      double value = (double) gainSetting;

      FloatControl gainControl = (FloatControl) clip.getControl(FloatControl.Type.MASTER_GAIN);
      float dB = (float) (Math.log(value == 0.0 ? 0.0001 : value) / Math.log(10.0) * 20.0);
      gainControl.setValue(dB);
      double playStartTime = (player.getSeekTime() / 100) * (playGetLength());
      clip.setMicrosecondPosition((long) playStartTime);

      clip.start();

      playState = PLAYING;

      return true;

    } catch (Exception ex) {
      ex.printStackTrace();
      playState = STOPPED;
      clip = null;
      return false;
    }
  }
  private void playNext(File file)
      throws IOException, UnsupportedAudioFileException, LineUnavailableException {
    synchronized (notificationMutex) {
      playing = true;
    }

    CancelAction cancelAction = new CancelAction();
    Application.getInstance()
        .getContext()
        .getNotificationManager()
        .showNotification(
            MessageFormat.format(
                Application.getInstance().getContext().getBundle().getString("play-voice-started"),
                file.getName()),
            cancelAction);

    try (AudioInputStream inputStream = AudioSystem.getAudioInputStream(file)) {
      clip = AudioSystem.getClip();
      clip.addLineListener(clipListener);
      clip.open(inputStream);
      clip.start();
    }
  }