001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030/**
031 * 
032 */
033package org.openimaj.demos.audio;
034
035import org.openimaj.audio.AudioPlayer;
036import org.openimaj.audio.AudioStream;
037import org.openimaj.audio.filters.VolumeAdjustProcessor;
038import org.openimaj.demos.Demo;
039import org.openimaj.video.xuggle.XuggleAudio;
040
041/**
042 *      A basic demonstration that shows playing audio through the OpenIMAJ
043 *      APIs. It also demonstrates the application of an audio processor to a stream
044 *      which can be played.
045 *
046 *      @author David Dupplaw (dpd@ecs.soton.ac.uk)
047 *  @created Nov 10, 2011
048 *      
049 */
050@Demo(
051        author = "David Dupplaw" , 
052        description = "Demonstrates playing audio from OpenIMAJ" , 
053        keywords = { "audio", "player", "processing" } , 
054        title = "Audio Player" 
055)
056public class AudioPlayerDemo
057{
058        /** The file we're going to play */
059        public final static String AUDIO_FILE = "/org/openimaj/demos/audio/140bpm-Arp.mp3";
060        
061        /**
062         *      Default constructor
063         */
064        public AudioPlayerDemo()
065        {
066                XuggleAudio s = new XuggleAudio(
067                                AudioPlayerDemo.class.getResource( AUDIO_FILE ) );
068                
069                playNormalSound( s );
070//              playProcessedSound( s );
071        }
072        
073        /**
074         *      Plays a sound through the audio API.
075         */
076        protected void playNormalSound( AudioStream s )
077        {
078                AudioPlayer ap = new AudioPlayer( s );
079                ap.run();
080        }
081        
082        /**
083         *      Plays a processed sound through the audio API.
084         */
085        protected void playProcessedSound( AudioStream s )
086        {
087                VolumeAdjustProcessor vap = new VolumeAdjustProcessor( 0.4f, s );
088                
089                AudioPlayer ap = new AudioPlayer( vap );
090                ap.run();               
091        }
092        
093        /**
094         * 
095         *      @param args
096         */
097        public static void main( String[] args )
098        {
099                new AudioPlayerDemo();
100        }
101}