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annotate src/com/aurellem/capture/examples/Advanced.java @ 50:8a091a5f48fa

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documentation for basic use case
author Robert McIntyre <rlm@mit.edu>
date Sat, 03 Dec 2011 13:35:13 -0600
parents 121b6d7e4d3f
children d799a0278cc9
rev   line source
rlm@41 1 package com.aurellem.capture.examples;
rlm@41 2
rlm@41 3 import java.io.File;
rlm@41 4 import java.io.FileNotFoundException;
rlm@41 5 import java.io.IOException;
rlm@42 6 import java.lang.reflect.Field;
rlm@41 7 import java.nio.ByteBuffer;
rlm@41 8
rlm@41 9 import javax.sound.sampled.AudioFormat;
rlm@41 10
rlm@41 11 import org.tritonus.share.sampled.FloatSampleTools;
rlm@41 12
rlm@45 13 import com.aurellem.capture.AurellemSystemDelegate;
rlm@41 14 import com.aurellem.capture.Capture;
rlm@41 15 import com.aurellem.capture.IsoTimer;
rlm@41 16 import com.aurellem.capture.audio.CompositeSoundProcessor;
rlm@41 17 import com.aurellem.capture.audio.MultiListener;
rlm@41 18 import com.aurellem.capture.audio.SoundProcessor;
rlm@41 19 import com.aurellem.capture.audio.WaveFileWriter;
rlm@41 20 import com.jme3.app.SimpleApplication;
rlm@41 21 import com.jme3.audio.AudioNode;
rlm@41 22 import com.jme3.audio.Listener;
rlm@41 23 import com.jme3.cinematic.MotionPath;
rlm@42 24 import com.jme3.cinematic.events.AbstractCinematicEvent;
rlm@41 25 import com.jme3.cinematic.events.MotionTrack;
rlm@41 26 import com.jme3.material.Material;
rlm@41 27 import com.jme3.math.ColorRGBA;
rlm@41 28 import com.jme3.math.FastMath;
rlm@41 29 import com.jme3.math.Quaternion;
rlm@41 30 import com.jme3.math.Vector3f;
rlm@41 31 import com.jme3.scene.Geometry;
rlm@41 32 import com.jme3.scene.Node;
rlm@41 33 import com.jme3.scene.shape.Box;
rlm@41 34 import com.jme3.scene.shape.Sphere;
rlm@41 35 import com.jme3.system.AppSettings;
rlm@45 36 import com.jme3.system.JmeSystem;
rlm@41 37
rlm@41 38 /**
rlm@41 39 *
rlm@41 40 * Demonstrates advanced use of the audio capture and recording features.
rlm@41 41 * Multiple perspectives of the same scene are simultaneously rendered to
rlm@41 42 * different sound files.
rlm@41 43 *
rlm@41 44 * A key limitation of the way multiple listeners are implemented is that
rlm@41 45 * only 3D positioning effects are realized for listeners other than the
rlm@41 46 * main LWJGL listener. This means that audio effects such as environment
rlm@41 47 * settings will *not* be heard on any auxiliary listeners, though sound
rlm@41 48 * attenuation will work correctly.
rlm@41 49 *
rlm@41 50 * Multiple listeners as realized here might be used to make AI entities
rlm@41 51 * that can each hear the world from their own perspective.
rlm@41 52 *
rlm@41 53 * @author Robert McIntyre
rlm@41 54 *
rlm@41 55 */
rlm@41 56
rlm@41 57 public class Advanced extends SimpleApplication {
rlm@41 58
rlm@41 59 private Geometry bell;
rlm@41 60 private Geometry ear1;
rlm@41 61 private Geometry ear2;
rlm@41 62 private Geometry ear3;
rlm@41 63 private AudioNode music;
rlm@41 64 private MotionTrack motionControl;
rlm@41 65
rlm@41 66 public static void main(String[] args) {
rlm@41 67 Advanced app = new Advanced();
rlm@41 68 AppSettings settings = new AppSettings(true);
rlm@49 69 settings.setAudioRenderer(AurellemSystemDelegate.SEND);
rlm@48 70 JmeSystem.setSystemDelegate(new AurellemSystemDelegate());
rlm@41 71 app.setSettings(settings);
rlm@41 72 app.setShowSettings(false);
rlm@41 73 app.setPauseOnLostFocus(false);
rlm@43 74
rlm@41 75 try {
rlm@41 76 Capture.captureVideo(app, File.createTempFile("advanced",".avi"));
rlm@41 77 Capture.captureAudio(app, File.createTempFile("advanced", ".wav"));
rlm@41 78 }
rlm@41 79 catch (IOException e) {e.printStackTrace();}
rlm@43 80
rlm@43 81 app.start();
rlm@43 82 }
rlm@41 83
rlm@41 84 private Geometry makeEar(Node root, Vector3f position){
rlm@41 85 Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
rlm@41 86 Geometry ear = new Geometry("ear", new Box(1.0f, 1.0f, 1.0f));
rlm@41 87 ear.setLocalTranslation(position);
rlm@41 88 mat.setColor("Color", ColorRGBA.Green);
rlm@41 89 ear.setMaterial(mat);
rlm@41 90 root.attachChild(ear);
rlm@41 91 return ear;
rlm@41 92 }
rlm@41 93
rlm@41 94 private Vector3f[] path = new Vector3f[]{
rlm@41 95 // loop 1
rlm@41 96 new Vector3f(0, 0, 0),
rlm@41 97 new Vector3f(0, 0, -10),
rlm@41 98 new Vector3f(-2, 0, -14),
rlm@41 99 new Vector3f(-6, 0, -20),
rlm@41 100 new Vector3f(0, 0, -26),
rlm@41 101 new Vector3f(6, 0, -20),
rlm@41 102 new Vector3f(0, 0, -14),
rlm@41 103 new Vector3f(-6, 0, -20),
rlm@41 104 new Vector3f(0, 0, -26),
rlm@41 105 new Vector3f(6, 0, -20),
rlm@41 106 // loop 2
rlm@41 107 new Vector3f(5, 0, -5),
rlm@41 108 new Vector3f(7, 0, 1.5f),
rlm@41 109 new Vector3f(14, 0, 2),
rlm@41 110 new Vector3f(20, 0, 6),
rlm@41 111 new Vector3f(26, 0, 0),
rlm@41 112 new Vector3f(20, 0, -6),
rlm@41 113 new Vector3f(14, 0, 0),
rlm@41 114 new Vector3f(20, 0, 6),
rlm@41 115 new Vector3f(26, 0, 0),
rlm@41 116 new Vector3f(20, 0, -6),
rlm@41 117 new Vector3f(14, 0, 0),
rlm@41 118 // loop 3
rlm@41 119 new Vector3f(8, 0, 7.5f),
rlm@41 120 new Vector3f(7, 0, 10.5f),
rlm@41 121 new Vector3f(6, 0, 20),
rlm@41 122 new Vector3f(0, 0, 26),
rlm@41 123 new Vector3f(-6, 0, 20),
rlm@41 124 new Vector3f(0, 0, 14),
rlm@41 125 new Vector3f(6, 0, 20),
rlm@41 126 new Vector3f(0, 0, 26),
rlm@41 127 new Vector3f(-6, 0, 20),
rlm@41 128 new Vector3f(0, 0, 14),
rlm@41 129 // begin ellipse
rlm@41 130 new Vector3f(16, 5, 20),
rlm@41 131 new Vector3f(0, 0, 26),
rlm@41 132 new Vector3f(-16, -10, 20),
rlm@41 133 new Vector3f(0, 0, 14),
rlm@41 134 new Vector3f(16, 20, 20),
rlm@41 135 new Vector3f(0, 0, 26),
rlm@41 136 new Vector3f(-10, -25, 10),
rlm@41 137 new Vector3f(-10, 0, 0),
rlm@41 138 // come at me!
rlm@41 139 new Vector3f(-28.00242f, 48.005623f, -34.648228f),
rlm@41 140 new Vector3f(0, 0 , -20),
rlm@41 141 };
rlm@41 142
rlm@41 143 private void createScene() {
rlm@41 144 Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
rlm@41 145 bell = new Geometry( "sound-emitter" , new Sphere(15,15,1));
rlm@41 146 mat.setColor("Color", ColorRGBA.Blue);
rlm@41 147 bell.setMaterial(mat);
rlm@41 148 rootNode.attachChild(bell);
rlm@41 149
rlm@41 150 ear1 = makeEar(rootNode, new Vector3f(0, 0 ,-20));
rlm@41 151 ear2 = makeEar(rootNode, new Vector3f(0, 0 ,20));
rlm@41 152 ear3 = makeEar(rootNode, new Vector3f(20, 0 ,0));
rlm@41 153
rlm@41 154 MotionPath track = new MotionPath();
rlm@41 155
rlm@41 156 for (Vector3f v : path){
rlm@41 157 track.addWayPoint(v);
rlm@41 158 }
rlm@41 159 track.setCurveTension(0.80f);
rlm@41 160
rlm@41 161 motionControl = new MotionTrack(bell,track);
rlm@42 162
rlm@42 163 // for now, use reflection to change the timer...
rlm@49 164 // motionControl.setTimer(new IsoTimer(60));
rlm@42 165 try {
rlm@42 166 Field timerField;
rlm@42 167 timerField = AbstractCinematicEvent.class.getDeclaredField("timer");
rlm@42 168 timerField.setAccessible(true);
rlm@42 169 try {timerField.set(motionControl, new IsoTimer(60));}
rlm@42 170 catch (IllegalArgumentException e) {e.printStackTrace();}
rlm@42 171 catch (IllegalAccessException e) {e.printStackTrace();}
rlm@42 172 }
rlm@42 173 catch (SecurityException e) {e.printStackTrace();}
rlm@42 174 catch (NoSuchFieldException e) {e.printStackTrace();}
rlm@42 175
rlm@41 176 motionControl.setDirectionType(MotionTrack.Direction.PathAndRotation);
rlm@41 177 motionControl.setRotation(new Quaternion().fromAngleNormalAxis(-FastMath.HALF_PI, Vector3f.UNIT_Y));
rlm@41 178 motionControl.setInitialDuration(20f);
rlm@41 179 motionControl.setSpeed(1f);
rlm@41 180
rlm@41 181 track.enableDebugShape(assetManager, rootNode);
rlm@41 182 positionCamera();
rlm@41 183 }
rlm@41 184
rlm@41 185
rlm@41 186 private void positionCamera(){
rlm@41 187 this.cam.setLocation(new Vector3f(-28.00242f, 48.005623f, -34.648228f));
rlm@41 188 this.cam.setRotation(new Quaternion(0.3359635f, 0.34280345f, -0.13281013f, 0.8671653f));
rlm@41 189 }
rlm@41 190
rlm@41 191 private void initAudio() {
rlm@41 192 org.lwjgl.input.Mouse.setGrabbed(false);
rlm@41 193 music = new AudioNode(assetManager, "Sound/Effects/Beep.ogg", false);
rlm@41 194
rlm@41 195 rootNode.attachChild(music);
rlm@41 196 audioRenderer.playSource(music);
rlm@41 197 music.setPositional(true);
rlm@41 198 music.setVolume(1f);
rlm@41 199 music.setReverbEnabled(false);
rlm@41 200 music.setDirectional(false);
rlm@41 201 music.setMaxDistance(200.0f);
rlm@41 202 music.setRefDistance(1f);
rlm@44 203 //music.setRolloffFactor(1f);
rlm@41 204 music.setLooping(false);
rlm@41 205 audioRenderer.pauseSource(music);
rlm@41 206 }
rlm@41 207
rlm@41 208 public class Dancer implements SoundProcessor {
rlm@41 209 Geometry entity;
rlm@41 210 float scale = 2;
rlm@41 211 public Dancer(Geometry entity){
rlm@41 212 this.entity = entity;
rlm@41 213 }
rlm@41 214
rlm@41 215 /**
rlm@41 216 * this method is irrelevant since there is no state to cleanup.
rlm@41 217 */
rlm@41 218 public void cleanup() {}
rlm@41 219
rlm@41 220
rlm@41 221 /**
rlm@41 222 * Respond to sound! This is the brain of an AI entity that
rlm@41 223 * hears it's surroundings and reacts to them.
rlm@41 224 */
rlm@41 225 public void process(ByteBuffer audioSamples, int numSamples, AudioFormat format) {
rlm@41 226 audioSamples.clear();
rlm@41 227 byte[] data = new byte[numSamples];
rlm@41 228 float[] out = new float[numSamples];
rlm@41 229 audioSamples.get(data);
rlm@41 230 FloatSampleTools.byte2floatInterleaved(data, 0, out, 0,
rlm@41 231 numSamples/format.getFrameSize(), format);
rlm@41 232
rlm@41 233 float max = Float.NEGATIVE_INFINITY;
rlm@41 234 for (float f : out){if (f > max) max = f;}
rlm@41 235 audioSamples.clear();
rlm@41 236
rlm@41 237 if (max > 0.1){entity.getMaterial().setColor("Color", ColorRGBA.Green);}
rlm@41 238 else {entity.getMaterial().setColor("Color", ColorRGBA.Gray);}
rlm@41 239 }
rlm@41 240 }
rlm@41 241
rlm@41 242 private void prepareEar(Geometry ear, int n){
rlm@41 243 if (this.audioRenderer instanceof MultiListener){
rlm@41 244 MultiListener rf = (MultiListener)this.audioRenderer;
rlm@41 245
rlm@41 246 Listener auxListener = new Listener();
rlm@41 247 auxListener.setLocation(ear.getLocalTranslation());
rlm@41 248
rlm@41 249 rf.addListener(auxListener);
rlm@41 250 WaveFileWriter aux = null;
rlm@41 251
rlm@41 252 try {aux = new WaveFileWriter(new File("/home/r/tmp/ear"+n+".wav"));}
rlm@41 253 catch (FileNotFoundException e) {e.printStackTrace();}
rlm@41 254
rlm@41 255 rf.registerSoundProcessor(auxListener,
rlm@41 256 new CompositeSoundProcessor(new Dancer(ear), aux));
rlm@41 257 }
rlm@41 258 }
rlm@41 259
rlm@41 260
rlm@41 261 public void simpleInitApp() {
rlm@41 262 this.setTimer(new IsoTimer(60));
rlm@41 263 initAudio();
rlm@41 264
rlm@41 265 createScene();
rlm@41 266
rlm@41 267 prepareEar(ear1, 1);
rlm@41 268 prepareEar(ear2, 1);
rlm@41 269 prepareEar(ear3, 1);
rlm@41 270
rlm@41 271 motionControl.play();
rlm@41 272 }
rlm@41 273
rlm@41 274 public void simpleUpdate(float tpf) {
rlm@41 275 if (music.getStatus() != AudioNode.Status.Playing){
rlm@41 276 music.play();
rlm@41 277 }
rlm@41 278 Vector3f loc = cam.getLocation();
rlm@41 279 Quaternion rot = cam.getRotation();
rlm@41 280 listener.setLocation(loc);
rlm@41 281 listener.setRotation(rot);
rlm@41 282 music.setLocalTranslation(bell.getLocalTranslation());
rlm@41 283 }
rlm@41 284
rlm@41 285 }