content: /**
   * Copyright 2004-2006 DFKI GmbH.
   * All Rights Reserved.  Use is subject to license terms.
   * <p/>
   * This file is part of MARY TTS.
   * <p/>
   * MARY TTS is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation, version 3 of the License.
   * <p/>
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU Lesser General Public License for more details.
   * <p/>
   * You should have received a copy of the GNU Lesser General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  package marytts.signalproc.analysis;
  
  import java.io.File;
  
  import lib.sound.sampled.AudioFormat;
  import lib.sound.sampled.AudioInputStream;
  import lib.sound.sampled.AudioSystem;
  import marytts.util.data.audio.AudioDoubleDataSource;
  import marytts.util.string.PrintfFormat;
  
  
  /**
   * @author Marc Schr&ouml;der
   *         <p/>
   *         Prints durations of audio files that are specified as fullpath arguments in String[] args
   */
  public class AudioFileDuration {
  
      public static void main(String[] args) throws Exception {
          PrintfFormat format = new PrintfFormat("%.4f");
          for (int file = 0; file < args.length; file++) {
              AudioInputStream ais = AudioSystem.getAudioInputStream(new File(args[file]));
              if (!ais.getFormat().getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED)) {
                  ais = AudioSystem.getAudioInputStream(AudioFormat.Encoding.PCM_SIGNED, ais);
              }
              float samplingRate = ais.getFormat().getSampleRate();
              double[] signal = new AudioDoubleDataSource(ais).getAllData();
              float duration = signal.length / samplingRate;
              System.out.println(args[file] + ": " + format.sprintf(duration) + " s");
          }
      }
  }
  
  