Пример #1
0
  /** Signals that a PooledThread has started. Creates the Thread's line and buffer. */
  protected void threadStarted() {
    // wait for the SoundManager constructor to finish
    synchronized (this) {
      try {
        wait();
      } catch (InterruptedException ex) {
      }
    }

    // use a short, 100ms (1/10th sec) buffer for filters that
    // change in real-time
    int bufferSize =
        playbackFormat.getFrameSize() * Math.round(playbackFormat.getSampleRate() / 10);

    // create, open, and start the line
    SourceDataLine line;
    DataLine.Info lineInfo = new DataLine.Info(SourceDataLine.class, playbackFormat);
    try {
      line = (SourceDataLine) AudioSystem.getLine(lineInfo);
      line.open(playbackFormat, bufferSize);
    } catch (LineUnavailableException ex) {
      // the line is unavailable - signal to end this thread
      Thread.currentThread().interrupt();
      return;
    }

    line.start();

    // create the buffer
    byte[] buffer = new byte[bufferSize];

    // set this thread's locals
    localLine.set(line);
    localBuffer.set(buffer);
  }
  /**
   * Sells a specified number of records Throws an exception if the record doesn't exist in the
   * store or if trying to sell more records than exist in the inventory
   *
   * @param record - the record to sell
   * @param quantity - the number of records to sell
   */
  public void sellItem(AudioFormat record, int quantity)
      throws NullPointerException, IllegalArgumentException {
    // System.out.println("Selling: " + record.toString() + ", quantity: " + quantity);
    InventoryItem item = null;
    for (int i = 0; i < this.listOfItems.length; i++) {
      item = this.listOfItems[i];

      // If it finds the record, break out of the loop
      if (record.equals(item.getRecord())) {
        break;
      }
    }

    // Handle the record not being in the inventory
    if (item == null) {
      throw new NullPointerException(
          "Error: there is no record of this type in stock "
              + "(record does not exist within the array).");
    }

    // Handle selling more items than the store has
    if (item.getQuantity() - quantity < 0) {
      throw new IllegalArgumentException(
          "Error: you cannot sell more records than you have "
              + "(# of records sold makes quantity smaller than 0).");
    }
    item.setQuantity(item.getQuantity() - quantity);
  }
Пример #3
0
  public boolean load(File file) {

    this.file = file;

    if (file != null && file.isFile()) {
      try {
        errStr = null;
        audioInputStream = AudioSystem.getAudioInputStream(file);

        fileName = file.getName();

        format = audioInputStream.getFormat();

      } catch (Exception ex) {
        reportStatus(ex.toString());
        return false;
      }
    } else {
      reportStatus("Audio file required.");
      return false;
    }

    numChannels = format.getChannels();
    sampleRate = (double) format.getSampleRate();
    sampleBitSize = format.getSampleSizeInBits();
    long frameLength = audioInputStream.getFrameLength();
    long milliseconds = (long) ((frameLength * 1000) / audioInputStream.getFormat().getFrameRate());
    double audioFileDuration = milliseconds / 1000.0;

    if (audioFileDuration > MAX_AUDIO_DURATION) duration = MAX_AUDIO_DURATION;
    else duration = audioFileDuration;

    frameLength = (int) Math.floor((duration / audioFileDuration) * (double) frameLength);

    try {
      audioBytes = new byte[(int) frameLength * format.getFrameSize()];
      audioInputStream.read(audioBytes);
    } catch (Exception ex) {
      reportStatus(ex.toString());
      return false;
    }

    getAudioData();

    return true;
  }
Пример #4
0
  public static Clip loadClip(URL url) {
    Clip clip = null;
    String fnm = "" + url;
    try {
      AudioInputStream stream = AudioSystem.getAudioInputStream(url);
      AudioFormat format = stream.getFormat();

      if ((format.getEncoding() == AudioFormat.Encoding.ULAW)
          || (format.getEncoding() == AudioFormat.Encoding.ALAW)) {
        AudioFormat newFormat =
            new AudioFormat(
                AudioFormat.Encoding.PCM_SIGNED,
                format.getSampleRate(),
                format.getSampleSizeInBits() * 2,
                format.getChannels(),
                format.getFrameSize() * 2,
                format.getFrameRate(),
                true); // big endian
        stream = AudioSystem.getAudioInputStream(newFormat, stream);
        // System.out.println("Converted Audio format: " + newFormat);
        format = newFormat;
      }

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

      // make sure sound system supports data line
      if (!AudioSystem.isLineSupported(info)) {
        System.out.println("Unsupported Clip File: " + fnm);
        return null;
      }
      // get clip line resource
      clip = (Clip) AudioSystem.getLine(info);
      clip.open(stream); // open the sound file as a clip
      stream.close(); // we're done with the input stream
      // duration (in secs) of the clip
      double duration = clip.getMicrosecondLength() / 1000000.0; // new
      if (duration <= 1.0) {
        System.out.println("WARNING. Duration <= 1 sec : " + duration + " secs");
        System.out.println(
            "         The clip in " + fnm + " may not play in J2SE 1.5 -- make it longer");
      }
      // else
      //  System.out.println(fnm + ": Duration: " + duration + " secs");
    } // end of try block
    catch (UnsupportedAudioFileException audioException) {
      System.out.println("Unsupported audio file: " + fnm);
    } catch (LineUnavailableException noLineException) {
      System.out.println("No audio line available for : " + fnm);
    } catch (IOException ioException) {
      System.out.println("Could not read: " + fnm);
    } catch (Exception e) {
      System.out.println("Problem with " + fnm);
    }
    return clip;
  } // end of loadClip()
Пример #5
0
  private static WAVData readFromStream(AudioInputStream aIn)
      throws UnsupportedAudioFileException, IOException {
    ReadableByteChannel aChannel = Channels.newChannel(aIn);
    AudioFormat fmt = aIn.getFormat();
    int numChannels = fmt.getChannels();
    int bits = fmt.getSampleSizeInBits();
    int format = AL_FORMAT_MONO8;

    if ((bits == 8) && (numChannels == 1)) {
      format = AL_FORMAT_MONO8;
    } else if ((bits == 16) && (numChannels == 1)) {
      format = AL_FORMAT_MONO16;
    } else if ((bits == 8) && (numChannels == 2)) {
      format = AL_FORMAT_STEREO8;
    } else if ((bits == 16) && (numChannels == 2)) {
      format = AL_FORMAT_STEREO16;
    }

    int freq = Math.round(fmt.getSampleRate());
    int size = aIn.available();
    ByteBuffer buffer = ByteBuffer.allocateDirect(size);
    while (buffer.remaining() > 0) {
      aChannel.read(buffer);
    }
    buffer.rewind();

    // Must byte swap on big endian platforms
    // Thanks to swpalmer on javagaming.org forums for hint at fix
    if ((bits == 16) && (ByteOrder.nativeOrder() == ByteOrder.BIG_ENDIAN)) {
      int len = buffer.remaining();
      for (int i = 0; i < len; i += 2) {
        byte a = buffer.get(i);
        byte b = buffer.get(i + 1);
        buffer.put(i, b);
        buffer.put(i + 1, a);
      }
    }

    WAVData result = new WAVData(buffer, format, size, freq, false);
    aIn.close();

    return result;
  }
Пример #6
0
  // 播放au,aiff,wav音乐流, 这个函数基本完全为帖子上的代码
  private synchronized void play() {
    ByteArrayInputStream aMusicInputStream;
    AudioFormat format;
    AudioInputStream musicInputStream;
    byte[] audioSamples;
    SourceDataLine line;
    try {
      File MusicFile = new File(m_filename);

      musicInputStream = AudioSystem.getAudioInputStream(MusicFile); // 取得文件的音频输入流
      format = musicInputStream.getFormat(); // 取得音频输入流的格式
      audioSamples = getAudioSamples(musicInputStream, format); // 取得音频样本

      aMusicInputStream = new ByteArrayInputStream(audioSamples);
      int bufferSize = format.getFrameSize() * Math.round(format.getSampleRate() / 10);
      byte[] buffer = new byte[bufferSize];
      try {
        DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
        line = (SourceDataLine) AudioSystem.getLine(info);
        line.open(format, bufferSize);
      } catch (LineUnavailableException e) {
        e.printStackTrace();
        return;
      }

      if (!line.isRunning()) {
        line.start();
      }

      int numBytesRead = 0;
      while (numBytesRead != -1 && !m_stopped) {
        numBytesRead = aMusicInputStream.read(buffer, 0, buffer.length);
        if (numBytesRead != -1) {
          line.write(buffer, 0, numBytesRead);
        }
      }
      line.drain();
      line.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
Пример #7
0
  // 取得音频样本
  private byte[] getAudioSamples(AudioInputStream MusicStream, AudioFormat format) {
    int AudioSampleLengh = (int) (MusicStream.getFrameLength() * format.getFrameSize());
    byte aAudioSamples[] = new byte[AudioSampleLengh];
    DataInputStream dataInputStream = new DataInputStream(MusicStream);

    try {
      dataInputStream.readFully(aAudioSamples);
    } catch (Exception e) {
      e.printStackTrace();
    }

    return aAudioSamples;
  }
Пример #8
0
  private void getAudioData() {

    if (format.getSampleSizeInBits() == 16) {
      nlengthInSamples = audioBytes.length / 2;
      audioData = new int[nlengthInSamples];
      if (format.isBigEndian()) {
        for (int i = 0; i < nlengthInSamples; i++) {
          // First byte is MSB (high order)
          int MSB = (int) audioBytes[2 * i];
          // Second byte is LSB (low order)
          int LSB = (int) audioBytes[2 * i + 1];
          audioData[i] = MSB << 8 | (255 & LSB);
        }
      } else {
        for (int i = 0; i < nlengthInSamples; i++) {
          // First byte is LSB (low order)
          int LSB = (int) audioBytes[2 * i];
          // Second byte is MSB (high order)
          int MSB = (int) audioBytes[2 * i + 1];
          audioData[i] = MSB << 8 | (255 & LSB);
        }
      }
    } else {
      if (format.getSampleSizeInBits() == 8) {
        nlengthInSamples = audioBytes.length;
        audioData = new int[nlengthInSamples];
        if (format.getEncoding().toString().startsWith("PCM_SIGN")) {
          for (int i = 0; i < audioBytes.length; i++) {
            audioData[i] = audioBytes[i];
          }
        } else {
          for (int i = 0; i < audioBytes.length; i++) {
            audioData[i] = audioBytes[i] - 128;
          }
        }
      }
    }
  }
Пример #9
0
 private void soundAbspielen(File sound) {
   if (!läuft) return;
   try {
     audioInputStream = AudioSystem.getAudioInputStream(sound);
     af = audioInputStream.getFormat();
     size = (int) (af.getFrameSize() * audioInputStream.getFrameLength());
     audio = new byte[size];
     info = new DataLine.Info(Clip.class, af, size);
     audioInputStream.read(audio, 0, size);
     clip = (Clip) AudioSystem.getLine(info);
     clip.open(af, audio, 0, size);
     clip.start();
   } catch (Exception e) {
     e.printStackTrace();
   }
 }
  /**
   * Adds a specified number of records to the inventory and updates the price
   *
   * @param record - the record to add
   * @param quantity - the number of records to add
   * @param price - the price to sell the record at
   */
  public void addItem(AudioFormat record, int quantity, double price) {
    // System.out.println("Adding: " + record.toString() + ", quantity: " + quantity + ", price: " +
    // price);
    for (int i = 0; i < this.listOfItems.length; i++) {
      InventoryItem item = this.listOfItems[i];

      // If the record is found, set the price and add the quantity and end the method
      if (record.equals(item.getRecord())) {
        item.setPrice(price);
        item.setQuantity(item.getQuantity() + quantity);
        return;
      }
    }

    // If it's an entirely new record, duplicates the old array and increases its size by 1
    InventoryItem[] temp = new InventoryItem[this.listOfItems.length + 1];
    for (int i = 0; i < this.listOfItems.length; i++) {
      temp[i] = this.listOfItems[i];
    }
    this.listOfItems = temp;

    // Adds the new record to the end of the array
    this.listOfItems[this.listOfItems.length - 1] = new InventoryItem(record, quantity, price);
  }
Пример #11
0
  public static void main(String[] args) throws Exception {
    int midiDev = -1;
    int audioDev = -1;
    int latencyInMillis = 70;

    // parse arguments
    int argi = 0;
    while (argi < args.length) {
      String arg = args[argi];
      if (arg.equals("-h")) {
        printUsageAndExit();
      } else if (arg.equals("-m")) {
        argi++;
        if (argi >= args.length) {
          printUsageAndExit();
        }
        midiDev = Integer.parseInt(args[argi]);
      } else if (arg.equals("-a")) {
        argi++;
        if (argi >= args.length) {
          printUsageAndExit();
        }
        audioDev = Integer.parseInt(args[argi]);
      } else if (arg.equals("-l")) {
        argi++;
        if (argi >= args.length) {
          printUsageAndExit();
        }
        latencyInMillis = Integer.parseInt(args[argi]);
      } else {
        printUsageAndExit();
      }
      argi++;
    }

    // load samples
    final AudioFileSource[] src = new AudioFileSource[sounds.length];
    for (int i = 0; i < sounds.length; i++) {
      src[i] = new AudioFileSource(new File(sounds[i]));
    }
    // define the first source's audioformat as the master format
    final AudioFormat format = src[0].getFormat();

    // set up mixer
    final AudioMixer mixer = new AudioMixer(format.getChannels(), format.getSampleRate());

    // set up soundcard (sink)
    SoundcardSink sink = new SoundcardSink();
    // open the sink and connect it with the mixer
    sink.open(audioDev, latencyInMillis, format, mixer);
    try {

      // do we want to open a MIDI port?
      MidiIn midi = null;
      if (midiDev >= 0) {
        // start MIDI IN
        midi = new MidiIn();
        midi.setListener(
            new MidiIn.Listener() {
              public void midiInPlayed(int status, int data1, int data2) {
                // only react to NOTE ON messages with velocity > 0
                if (((status & 0xF0) == 0x90) && (data2 > 0)) {
                  AudioFileSource newSrc = src[data1 % src.length].makeClone();
                  mixer.addAudioStream(newSrc);
                  serviceMixer(mixer);
                }
              }

              public void midiInPlayed(byte[] message) {
                // nothing to do for long MIDI messages
              }
            });
        midi.open(midiDev);
      } else {
        Debug.debug("No MIDI.");
      }
      try {

        // start the sink -- from now on, the mixer is polled for new
        // data
        sink.start();

        System.out.println("Press ENTER for a sound, 'q'+ENTER to quit.");
        int currSrc = 0;
        while (true) {
          char c = (char) System.in.read();
          if (c == 'q') {
            break;
          }
          AudioFileSource newSrc = src[(currSrc++) % src.length].makeClone();
          mixer.addAudioStream(newSrc);
          serviceMixer(mixer);
        }
      } finally {
        // clean-up
        if (midi != null) {
          midi.close();
        }
      }
    } finally {
      sink.close();
    }

    Debug.debug("done");
  }