Package com.meapsoft.composers

Source Code of com.meapsoft.composers.BlipComposer

/*
*  Copyright 2006-2007 Columbia University.
*
*  This file is part of MEAPsoft.
*
*  MEAPsoft is free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License version 2 as
*  published by the Free Software Foundation.
*
*  MEAPsoft 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
*  General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with MEAPsoft; if not, write to the Free Software
*  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
*  02110-1301 USA
*
*  See the file "COPYING" for the text of the license.
*/

package com.meapsoft.composers;

import gnu.getopt.Getopt;

import java.io.IOException;
import java.util.Iterator;

import com.meapsoft.EDLChunk;
import com.meapsoft.EDLFile;
import com.meapsoft.FeatChunk;
import com.meapsoft.FeatFile;
import com.meapsoft.ParserException;

/**
* Program that adds a blip after each chunk
*
* @author Dan Ellis (dpwe@ee.columbia.edu)
*/
public class BlipComposer extends Composer
{
  public static String oldDesc = "BlipComposer inserts a blip at the beginning of each chunk in the input features file. Especially useful for understanding the output of the segmenter.";

  String outFileName = "blipped.edl";

  FeatFile featFile;

  boolean debug = false;
 
  boolean silentMode = false;

  // path to blip wav file
  String blipWav = "data" + System.getProperty("file.separator") + "blip.wav";

  //@mike: empty constructor just to sniff this guy
  //please don't call this constructor, it will not work
  public BlipComposer()
  {
    initNameAndDescription("Add Blips", new String(oldDesc));
  }
 
  public BlipComposer(String featFN, String outFN)
  {
    this(new FeatFile(featFN), new EDLFile(outFN), false);
  }

  public BlipComposer(String featFN, String outFN, boolean silentMode)
  {
    this(new FeatFile(featFN), new EDLFile(outFN), silentMode);
  }
 
  public BlipComposer(FeatFile featFN, EDLFile outFN)
  {
    this(featFN, outFN, false);
  }
 
  public BlipComposer(FeatFile featFN, EDLFile outFN, boolean silentMode)
  {
    if (featFN == null || outFN == null)
      return;

    featFile = featFN;
    outFile = outFN;
   
    this.silentMode = silentMode;

    if (outFile == null)
      outFile = new EDLFile("");
  }

 
  public void printUsageAndExit()
  {
    System.out
        .println("Usage: BlipComposer [-options] features.feat \n\n"
            + "  where options include:\n"
            + " -s  silent mode -- only output blips, not original sound\n"
            + "    -o output_file  the file to write the output to (defaults to blipped.edl)\n"
            + "    -f blip_file    the audio file to insert at the beginning of each chunk (defaults to data/blip.wav)");
    printCommandLineOptions('c');
    System.out.println();
    System.exit(0);
  }

  public BlipComposer(String[] args)
  {
    if (args.length == 0)
      printUsageAndExit();

    // Vector features = new Vector();

    // Parse arguments
    String argString = "o:c:f:g";
    parseCommands(args, argString);

    Getopt opt = new Getopt("BlipComposer", args, argString);
    opt.setOpterr(false);

    int c = -1;
    while ((c = opt.getopt()) != -1)
    {
      switch (c)
      {
      case 'o':
        outFileName = opt.getOptarg();
        break;
      case 'g':
        debug = true;
        break;
      case 'f':
        blipWav = opt.getOptarg();
        break;
      case 'c': // already handled above
        break;
      case 's':
        silentMode = true;
      case '?':
        printUsageAndExit();
        break;
      default:
        System.out.print("getopt() returned " + c + "\n");
      }
    }

    // parse arguments
    int ind = opt.getOptind();
    if (ind > args.length)
      printUsageAndExit();

    featFile = new FeatFile(args[args.length - 1]);
    outFile = new EDLFile(outFileName);

    System.out.println("Composing " + outFileName + " from "
        + args[args.length - 1] + ".");
  }

  public void setup() throws IOException, ParserException
  {
    super.setup();

    if (!featFile.haveReadFile)
      featFile.readFile();

    if (featFile.chunks.size() == 0)
      throw new ParserException(featFile.filename, "No chunks found");

    progress.setMaximum(featFile.chunks.size());

    // System.out.println("blip chunks in: " + featFile.chunks.size());
  }

  public EDLFile compose()
  {
    Iterator c = featFile.chunks.iterator();
    double currTime = 0;

    while (c.hasNext())
    {
      FeatChunk ch = (FeatChunk) c.next();

      EDLChunk nc = new EDLChunk(ch, currTime);
      // hard-coded parameters of blip
      EDLChunk blip = new EDLChunk(blipWav, 0, 0.1, currTime);

      outFile.chunks.add(blip);
     
      //if we're in silent mode we don't write sound, just blips
      if (!silentMode)
        outFile.chunks.add(nc);

      currTime += ch.length;

      progress.setValue(progress.getValue() + 1);
    }
    progress.setValue(progress.getValue() + 1);

    // outFile now contains some chunks.
    outFile.haveReadFile = true;

    // System.out.println("blip chunks out: " + outFile.chunks.size());
    return outFile;
  }

  public String description()
  {
    return description;
  }

  public void setBlipWav(String bp)
  {
    blipWav = bp;
  }

  public static void main(String[] args)
  {
    BlipComposer m = new BlipComposer(args);
    long startTime = System.currentTimeMillis();
    m.run();
    System.out.println("Done. Took "
        + ((System.currentTimeMillis() - startTime) / 1000.0) + "s");
    System.exit(0);
  }
}
TOP

Related Classes of com.meapsoft.composers.BlipComposer

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.