AudioChannelPlayer Java code example - Click here to copy ->>>

Can't find what you're looking for? Try our search:

Really working examples categorized by API, package, class. You can compile and run our examples right away! Not from source code for Java projects - only working examples! Copy, compile and run!

Code:



 

 /*



* AudioChannelPlayer.java



*



* This file is part of the Java Sound Examples.



*/



/*



*  Copyright (c) 2000 by Matthias Pfisterer 



*



*   This program is free software; you can redistribute it and/or modify



*   it under the terms of the GNU Library General Public License as published



*   by the Free Software Foundation; either version 2 of the License, or



*   (at your option) any later version.



*



*   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 Library General Public License for more details.



*



*   You should have received a copy of the GNU Library General Public



*   License along with this program; if not, write to the Free Software



*   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.



*/



/*



|<---            this code is formatted to fit into 80 columns             --->|



*/





import java.io.File;



import java.io.InputStream;



import java.io.IOException;



import java.net.URL;



import java.util.ArrayList;



import java.util.List;





import javax.sound.sampled.AudioFormat;



import javax.sound.sampled.AudioInputStream;



import javax.sound.sampled.AudioSystem;



import javax.sound.sampled.LineUnavailableException;



import javax.sound.sampled.LineListener;



import javax.sound.sampled.LineEvent;



import javax.sound.sampled.Mixer;



import javax.sound.sampled.SourceDataLine;



import javax.sound.sampled.DataLine;



import javax.sound.sampled.FloatControl;



import javax.sound.sampled.BooleanControl;





/**

 * AudioChannelPlayer

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * OLD DO*****ENTATION:

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * AudioChannel -- playing sound files in a sequence

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * AudioChannel manages a queue of AudioInputStreams to send

 * <p/>

 * them to the same line.  In the constructor of

 * <p/>

 * AudioChannel, an AudioFormat has to be passed. A Line is

 * <p/>

 * retrieved for this format. AudioInputStreams having a

 * <p/>

 * different format are automatically converted during

 * <p/>

 * playback.  This class is in an experimental state. Please

 * <p/>

 * report problems.

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * AudioChannelPlayer is a command-line program that shows

 * <p/>

 * how to use AudioChannel. It plays all sound files whose

 * <p/>

 * names are given as command line arguments in sequence.

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * <p/>

 * Source code: AudioChannel.java,

 * <p/>

 * Source code: AudioChannelPlayer.java

 */



public class AudioChannelPlayer {



    private static final boolean DEBUG = true;



    private static final int BUFFER_SIZE = 16384;





    public static void main(String[] args)



    {



        // TODO: set AudioFormat after the first soundfile



        AudioFormat audioFormat = new AudioFormat(



                AudioFormat.Encoding.PCM_SIGNED,



                44100.0F, 16, 2, 4, 44100.0F, true);



        SourceDataLine line = null;





        try



        {



            DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);



            line = (SourceDataLine) AudioSystem.getLine(info);



            line.open(audioFormat, line.getBufferSize());



        }



        catch (LineUnavailableException e)



        {



            e.printStackTrace();



        }



        line.start();



        AudioChannel channel = new AudioChannel(line);



        channel.start();



        for (int nArgPos = 0; nArgPos < args.length; nArgPos++)



        {



            if (args[nArgPos].startsWith("-s"))



            {



                String strDuration = args[nArgPos].substring(2);



                int nDuration = Integer.parseInt(strDuration);



                handleSilence(nDuration, channel);



            }



            else



            {



                handleFile(args[nArgPos], channel);



            }





        }



        // TODO: instead of waiting a fixed amount of time, wait until the queue of AudioChannel is empty.



        try



        {



            Thread.sleep(10000);



        }



        catch (InterruptedException e)



        {



        }



    }





    private static void handleFile(String strFilename, AudioChannel channel)



    {



        File audioFile = new File(strFilename);



        AudioInputStream audioInputStream = null;



        try



        {



            audioInputStream = AudioSystem.getAudioInputStream(audioFile);



        }



        catch (Exception e)



        {



            /*

         

            * In case of an exception, we dump the exception

         

            * including the stack trace to the console output.

         

            * Then, we exit the program.

         

            */



            e.printStackTrace();



            System.exit(1);



        }



        if (audioInputStream != null)



        {



            boolean bSuccessfull = channel.addAudioInputStream(audioInputStream);



            if (! bSuccessfull)



            {



                out("Warning: could not enqueue AudioInputStream; presumably formats don't match!");



            }



        }



    }





    private static void handleSilence(int nDuration, AudioChannel channel)



    {



    }





    private static void out(String strMessage)



    {



        System.out.println(strMessage);



    }



}