Mercurial > jmeCapture

     1 package com.aurellem.capture.examples;

     2 

     3 import java.io.File;

     4 import java.io.IOException;

     5 import java.lang.reflect.Field;

     6 import java.nio.ByteBuffer;

     7 

     8 import javax.sound.sampled.AudioFormat;

     9 

    10 import org.tritonus.share.sampled.FloatSampleTools;

    11 

    12 import com.aurellem.capture.AurellemSystemDelegate;

    13 import com.aurellem.capture.Capture;

    14 import com.aurellem.capture.IsoTimer;

    15 import com.aurellem.capture.audio.CompositeSoundProcessor;

    16 import com.aurellem.capture.audio.MultiListener;

    17 import com.aurellem.capture.audio.SoundProcessor;

    18 import com.aurellem.capture.audio.WaveFileWriter;

    19 import com.jme3.app.SimpleApplication;

    20 import com.jme3.audio.AudioNode;

    21 import com.jme3.audio.Listener;

    22 import com.jme3.cinematic.MotionPath;

    23 import com.jme3.cinematic.events.AbstractCinematicEvent;

    24 import com.jme3.cinematic.events.MotionTrack;

    25 import com.jme3.material.Material;

    26 import com.jme3.math.ColorRGBA;

    27 import com.jme3.math.FastMath;

    28 import com.jme3.math.Quaternion;

    29 import com.jme3.math.Vector3f;

    30 import com.jme3.scene.Geometry;

    31 import com.jme3.scene.Node;

    32 import com.jme3.scene.shape.Box;

    33 import com.jme3.scene.shape.Sphere;

    34 import com.jme3.system.AppSettings;

    35 import com.jme3.system.JmeSystem;

    36 

    37 /**

    38  * 

    39  * Demonstrates advanced use of the audio capture and recording

    40  * features.  Multiple perspectives of the same scene are

    41  * simultaneously rendered to different sound files.

    42  * 

    43  * A key limitation of the way multiple listeners are implemented is

    44  * that only 3D positioning effects are realized for listeners other

    45  * than the main LWJGL listener.  This means that audio effects such

    46  * as environment settings will *not* be heard on any auxiliary

    47  * listeners, though sound attenuation will work correctly.

    48  * 

    49  * Multiple listeners as realized here might be used to make AI

    50  * entities that can each hear the world from their own perspective.

    51  * 

    52  * @author Robert McIntyre

    53  */

    54 

    55 public class Advanced extends SimpleApplication {

    56 

    57     /**

    58      * You will see three grey cubes, a blue sphere, and a path which

    59      * circles each cube.  The blue sphere is generating a constant

    60      * monotone sound as it moves along the track.  Each cube is

    61      * listening for sound; when a cube hears sound whose intensity is

    62      * greater than a certain threshold, it changes its color from

    63      * grey to green.

    64      * 

    65      *  Each cube is also saving whatever it hears to a file.  The

    66      *  scene from the perspective of the viewer is also saved to a

    67      *  video file.  When you listen to each of the sound files

    68      *  alongside the video, the sound will get louder when the sphere

    69      *  approaches the cube that generated that sound file.  This

    70      *  shows that each listener is hearing the world from its own

    71      *  perspective.

    72      * 

    73      */

    74     public static void main(String[] args) {

    75 	Advanced app = new Advanced();

    76 	AppSettings settings = new AppSettings(true);

    77 	settings.setAudioRenderer(AurellemSystemDelegate.SEND);

    78 	JmeSystem.setSystemDelegate(new AurellemSystemDelegate());

    79 	app.setSettings(settings);

    80 	app.setShowSettings(false);

    81 	app.setPauseOnLostFocus(false);

    82 		

    83 	try {

    84 	    //Capture.captureVideo(app, File.createTempFile("advanced",".avi"));

    85 	    Capture.captureAudio(app, File.createTempFile("advanced",".wav"));

    86 	}

    87 	catch (IOException e) {e.printStackTrace();}

    88 		 

    89 	app.start();

    90     }

    91 

    92     private Geometry bell;

    93     private Geometry ear1;

    94     private Geometry ear2;

    95     private Geometry ear3;

    96     private AudioNode music;

    97     private MotionTrack motionControl;

    98     private IsoTimer motionTimer = new IsoTimer(60);

    99 

   100     private Geometry makeEar(Node root, Vector3f position){

   101 	Material mat = new Material(assetManager, 

   102 				    "Common/MatDefs/Misc/Unshaded.j3md");

   103 	Geometry ear = new Geometry("ear", new Box(1.0f, 1.0f, 1.0f));

   104 	ear.setLocalTranslation(position);

   105 	mat.setColor("Color", ColorRGBA.Green);

   106 	ear.setMaterial(mat);

   107 	root.attachChild(ear);

   108 	return ear;

   109     } 

   110 

   111     private Vector3f[] path = new Vector3f[]{

   112 	// loop 1

   113 	new Vector3f(0, 0, 0),

   114 	new Vector3f(0, 0, -10),

   115 	new Vector3f(-2, 0, -14),

   116 	new Vector3f(-6, 0, -20),

   117 	new Vector3f(0, 0, -26),

   118 	new Vector3f(6, 0, -20),

   119 	new Vector3f(0, 0, -14),

   120 	new Vector3f(-6, 0, -20),

   121 	new Vector3f(0, 0, -26),

   122 	new Vector3f(6, 0, -20),

   123 	// loop 2

   124 	new Vector3f(5, 0, -5),

   125 	new Vector3f(7, 0, 1.5f),

   126 	new Vector3f(14, 0, 2),

   127 	new Vector3f(20, 0, 6),

   128 	new Vector3f(26, 0, 0),

   129 	new Vector3f(20, 0, -6),

   130 	new Vector3f(14, 0, 0),

   131 	new Vector3f(20, 0, 6),

   132 	new Vector3f(26, 0, 0),

   133 	new Vector3f(20, 0, -6),

   134 	new Vector3f(14, 0, 0),

   135 	// loop 3

   136 	new Vector3f(8, 0, 7.5f),

   137 	new Vector3f(7, 0, 10.5f),

   138 	new Vector3f(6, 0, 20),

   139 	new Vector3f(0, 0, 26),

   140 	new Vector3f(-6, 0, 20),

   141 	new Vector3f(0, 0, 14),

   142 	new Vector3f(6, 0, 20),

   143 	new Vector3f(0, 0, 26),

   144 	new Vector3f(-6, 0, 20),

   145 	new Vector3f(0, 0, 14),

   146 	// begin ellipse

   147 	new Vector3f(16, 5, 20),

   148 	new Vector3f(0, 0, 26),

   149 	new Vector3f(-16, -10, 20),

   150 	new Vector3f(0, 0, 14),

   151 	new Vector3f(16, 20, 20),

   152 	new Vector3f(0, 0, 26),

   153 	new Vector3f(-10, -25, 10),

   154 	new Vector3f(-10, 0, 0),

   155 	// come at me!

   156 	new Vector3f(-28.00242f, 48.005623f, -34.648228f),

   157 	new Vector3f(0, 0 , -20),

   158     };

   159 

   160     private void createScene() {

   161 	Material mat = new Material(assetManager,

   162 				    "Common/MatDefs/Misc/Unshaded.j3md");

   163 	bell = new Geometry( "sound-emitter" , new Sphere(15,15,1));

   164 	mat.setColor("Color", ColorRGBA.Blue);

   165 	bell.setMaterial(mat);

   166 	rootNode.attachChild(bell);

   167 

   168 	ear1 = makeEar(rootNode, new Vector3f(0, 0 ,-20));

   169 	ear2 = makeEar(rootNode, new Vector3f(0, 0 ,20));

   170 	ear3 = makeEar(rootNode, new Vector3f(20, 0 ,0));

   171 

   172 	MotionPath track = new MotionPath();

   173 

   174 	for (Vector3f v : path){

   175 	    track.addWayPoint(v);

   176 	}

   177 	track.setCurveTension(0.80f);

   178 

   179 	motionControl = new MotionTrack(bell,track);

   180 	// for now, use reflection to change the timer... 

   181 	// motionControl.setTimer(new IsoTimer(60));

   182 		

   183 	try {

   184 	    Field timerField;

   185 	    timerField = 

   186 		AbstractCinematicEvent.class.getDeclaredField("timer");

   187 	    timerField.setAccessible(true);

   188 	    try {timerField.set(motionControl, motionTimer);} 

   189 	    catch (IllegalArgumentException e) {e.printStackTrace();} 

   190 	    catch (IllegalAccessException e) {e.printStackTrace();}

   191 	} 

   192 	catch (SecurityException e) {e.printStackTrace();} 

   193 	catch (NoSuchFieldException e) {e.printStackTrace();}

   194 

   195 

   196 	motionControl.setDirectionType

   197 	    (MotionTrack.Direction.PathAndRotation);

   198 	motionControl.setRotation

   199 	    (new Quaternion().fromAngleNormalAxis

   200 	     (-FastMath.HALF_PI, Vector3f.UNIT_Y));

   201 	motionControl.setInitialDuration(20f);

   202 	motionControl.setSpeed(1f);

   203 

   204 	track.enableDebugShape(assetManager, rootNode);

   205 	positionCamera();

   206     }

   207 

   208     private void positionCamera(){

   209 	this.cam.setLocation

   210 	    (new Vector3f(-28.00242f, 48.005623f, -34.648228f));

   211 	this.cam.setRotation

   212 	    (new Quaternion

   213 	     (0.3359635f, 0.34280345f, -0.13281013f, 0.8671653f));

   214     }

   215 

   216     private void initAudio() {

   217 	org.lwjgl.input.Mouse.setGrabbed(false);	

   218 	music = new AudioNode(assetManager, 

   219 			      "Sound/Effects/Beep.ogg", false);

   220 	rootNode.attachChild(music);

   221 	audioRenderer.playSource(music);

   222 	music.setPositional(true);

   223 	music.setVolume(1f);

   224 	music.setReverbEnabled(false);

   225 	music.setDirectional(false);

   226 	music.setMaxDistance(200.0f);

   227 	music.setRefDistance(1f);

   228 	//music.setRolloffFactor(1f);

   229 	music.setLooping(false);

   230 	audioRenderer.pauseSource(music); 

   231     }

   232 

   233     public class Dancer implements SoundProcessor {

   234 	Geometry entity;

   235 	float scale = 2;

   236 	public Dancer(Geometry entity){

   237 	    this.entity = entity;

   238 	}

   239 

   240 	/**

   241 	 * this method is irrelevant since there is no state to cleanup.

   242 	 */

   243 	public void cleanup() {}

   244 

   245 

   246 	/**

   247 	 * Respond to sound!  This is the brain of an AI entity that 

   248 	 * hears its surroundings and reacts to them.

   249 	 */

   250 	public void process(ByteBuffer audioSamples, 

   251 			    int numSamples, AudioFormat format) {

   252 	    audioSamples.clear();

   253 	    byte[] data = new byte[numSamples];

   254 	    float[] out = new float[numSamples];

   255 	    audioSamples.get(data);

   256 	    FloatSampleTools.

   257 		byte2floatInterleaved

   258 		(data, 0, out, 0, numSamples/format.getFrameSize(), format);

   259 

   260 	    float max = Float.NEGATIVE_INFINITY;

   261 	    for (float f : out){if (f > max) max = f;}

   262 	    audioSamples.clear();

   263 

   264 	    if (max > 0.1){

   265 		entity.getMaterial().setColor("Color", ColorRGBA.Green);

   266 	    }

   267 	    else {

   268 		entity.getMaterial().setColor("Color", ColorRGBA.Gray);

   269 	    }

   270 	}

   271     }

   272 

   273     private void prepareEar(Geometry ear, int n){

   274 	if (this.audioRenderer instanceof MultiListener){

   275 	    MultiListener rf = (MultiListener)this.audioRenderer;

   276 

   277 	    Listener auxListener = new Listener();

   278 	    auxListener.setLocation(ear.getLocalTranslation());

   279 

   280 	    rf.addListener(auxListener);

   281 	    WaveFileWriter aux = null;

   282 

   283 	    try {

   284 		aux = new WaveFileWriter

   285 		    (File.createTempFile("advanced-audio-" + n, ".wav"));} 

   286 	    catch (IOException e) {e.printStackTrace();}

   287 

   288 	    rf.registerSoundProcessor

   289 		(auxListener, 

   290 		 new CompositeSoundProcessor(new Dancer(ear), aux));

   291 	}   

   292     }

   293 

   294     public void simpleInitApp() {

   295 	this.setTimer(new IsoTimer(60));

   296 	initAudio();

   297 

   298 	createScene();

   299 

   300 	prepareEar(ear1, 1);

   301 	prepareEar(ear2, 1);

   302 	prepareEar(ear3, 1);

   303 

   304 	motionControl.play();

   305     }

   306 

   307     public void simpleUpdate(float tpf) {

   308 	motionTimer.update();

   309 	if (music.getStatus() != AudioNode.Status.Playing){

   310 	    music.play();

   311 	}

   312 	Vector3f loc = cam.getLocation();

   313 	Quaternion rot = cam.getRotation();

   314 	listener.setLocation(loc);

   315 	listener.setRotation(rot);

   316 	music.setLocalTranslation(bell.getLocalTranslation());

   317     }

   318 }
author	Robert McIntyre <rlm@mit.edu>
date	Sat, 11 Feb 2012 12:25:26 -0700
parents	f5e52169f056
children