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 */ 030package org.openimaj.demos.acmmm11.presentation.slides; 031 032import java.awt.Component; 033import java.awt.image.BufferedImage; 034import java.io.IOException; 035import java.net.URL; 036 037import org.openimaj.audio.AudioFormat; 038import org.openimaj.audio.FrequencyAudioSource; 039import org.openimaj.audio.FrequencyAudioSource.Listener; 040import org.openimaj.audio.JavaSoundAudioGrabber; 041import org.openimaj.content.slideshow.PictureSlide; 042import org.openimaj.image.FImage; 043import org.openimaj.image.ImageUtilities; 044import org.openimaj.image.MBFImage; 045import org.openimaj.math.geometry.shape.Rectangle; 046import org.openimaj.util.pair.Pair; 047 048/** 049 * Slide showing a picture overlayed with a live spectrogram. 050 * 051 * @author David Dupplaw (dpd@ecs.soton.ac.uk) 052 * @author Sina Samangooei (ss@ecs.soton.ac.uk) 053 * 054 */ 055public class AudioOutroSlide extends PictureSlide implements Listener { 056 057 private final int sampleChunkSize = 512; 058 private FImage spectra; 059 private BufferedImage buf = null; 060 private JavaSoundAudioGrabber xa; 061 private FrequencyAudioSource source; 062 063 064 /** 065 * Default constructor 066 * @param picture 067 * @throws IOException 068 */ 069 public AudioOutroSlide(final URL picture) throws IOException { 070 super(picture); 071 } 072 073 @Override 074 public Component getComponent(final int width, final int height) throws IOException{ 075 final Component comp = super.getComponent(width, height); 076 this.xa = new JavaSoundAudioGrabber(new AudioFormat( 16, 96.1, 1 )); 077 this.xa.setMaxBufferSize( this.sampleChunkSize ); 078 new Thread( this.xa ).start(); 079 this.source = new FrequencyAudioSource(this.xa); 080 this.source.addFrequencyListener(this,new Pair<Integer>(30,3400)); 081 this.spectra = null; 082 return comp; 083 } 084 085 @Override 086 public void close(){ 087 super.close(); 088 if(this.xa!=null){ 089 090 this.xa.stop(); 091 this.xa = null; 092 } 093 } 094 095 @Override 096 public void consumeFrequency(final float[] fftReal, final float[] fftImag,final int low,final int high) { 097 098 final int blockWidth = 10; 099 final int blockHeight = 5; 100 101 if( this.spectra == null || this.spectra.getHeight() != (high-low) * blockHeight ) 102 { 103 this.spectra = new FImage( this.mbfImage.getWidth(), (high-low)*blockHeight); 104 } 105 106 this.spectra.shiftLeftInplace(blockWidth); 107 // Draw the spectra 108 for( int i = low; i < high; i++ ) 109 { 110 final float re = fftReal[i]; 111 final float im = fftImag[i]; 112 float mag = (float)Math.log(Math.sqrt( re*re + im*im )+1)/5; 113 if( mag > 1 ) mag = 1; 114 this.spectra.drawShapeFilled(new Rectangle(this.spectra.getWidth()-blockWidth, this.spectra.getHeight()-(i * blockHeight), blockWidth,blockHeight), mag ); 115 } 116 117 final MBFImage toDraw = this.mbfImage.clone(); 118 toDraw.drawImage(new MBFImage(this.spectra,this.spectra,this.spectra), (this.mbfImage.getWidth() - this.spectra.width)/2, this.mbfImage.getHeight() - this.spectra.height); 119 this.ic.setImage(this.buf = ImageUtilities.createBufferedImageForDisplay( toDraw, this.buf )); 120 } 121 122 123 124}