Hi

Working on a patch to capture QT movie of this flocking mod.
But keep getting this error -
quicktime.std.StdQTException[QTJava:7.4.5g],-2014=invalidDuration,QT.vers:7458000
at quicktime.std.StdQTException.checkError(StdQTException.java:38)

any ideas please let me know
mark p
Below is the code -

// flock array with movie record
import processing.video.*;

MovieMaker mm;

PImage b;
int birdCount = 20;
Bird[]birds = new Bird[birdCount];
float[]x = new float[birdCount];
float[]y = new float[birdCount];
float[]z = new float[birdCount];
float[]rx = new float[birdCount];
float[]ry = new float[birdCount];
float[]rz = new float[birdCount];
float[]spd = new float[birdCount];
float[]rot = new float[birdCount];

void setup(){
 size(500, 500, P3D);
 noStroke();
 
   // Save uncompressed, at 15 frames per second
 mm = new MovieMaker(this, width, height, "flock.mov");

 //initialize arrays with random values
 for (int i=0; i<birdCount; i++){
   birds[i] = new Bird(random(-100, 300), random(-30, 30),
   random (-500, -250), random(5, 30), random(5, 30));

   birds[i].setColor(color(random(25), random(25), random(255)),
   color(random(255), random(255), random(355)));

   x[i] = random(200, 340);
   y[i] = random(30, 350);
   z[i] = random(100, 4800);
   rx[i] = random(-160, 16);
   ry[i] = random(-55, 55);
   rz[i] = random(-20, 20);
   spd[i] = random(.2, 3.75);
   rot[i] = random(.25, .15);
 }
}

void draw(){
 background(1);
 lights();
 spotLight(20, 302, 226, 80, 20, 40, -5, 0, 0, PI/4, 2);
 translate(10, 10, 0);

ambient(51, 26, 0);
 




 for (int i=0; i<birdCount; i++){
   birds[i].setFlight(x[i], y[i], z[i], rx[i], ry[i], rz[i]);
   birds[i].setWingSpeed(spd[i]);
   birds[i].setRotSpeed(rot[i]);
   birds[i].fly();
 }
}

class Bird{
 // properties
 float offsetX, offsetY, offsetZ;
 float w, h;
 int bodyFill;
 int wingFill;
 float ang = 1, ang2 = 20, ang3 = 20, ang4 = 0;
 float radiusX = 12, radiusY = 12, radiusZ = 120;
 float rotX = 1, rotY = 1, rotZ = 5;
 float flapSpeed = 1;
 float rotSpeed = .1;

 // constructors
 Bird(){
   this(0, 67, 12, 60, 80);
 }

 Bird(float offsetX, float offsetY, float offsetZ,
 float w, float h){
   this.offsetX = offsetX;
   this.offsetY = offsetY;
   this.offsetZ = offsetZ;
   this.h=h;
   this.w=w;
   bodyFill = color(50, 100, 10);
   wingFill = color(10, 200, 20);
 }

 // methods
 void setColor(int bodyFill, int wingFill){
   this.bodyFill=bodyFill;
   this.wingFill=wingFill;
 }

 void setFlight(float radiusX, float radiusY, float radiusZ,
 float rotX, float rotY, float rotZ){
   this.radiusX = radiusX;
   this.radiusY = radiusY;
   this.radiusZ = radiusZ;

   this.rotX = rotX;
   this.rotY = rotY;
   this.rotZ = rotY;
 }

 void setWingSpeed(float flapSpeed){
   this.flapSpeed = flapSpeed;
 }

 void setRotSpeed(float rotSpeed){
   this.rotSpeed = rotSpeed;
 }

 void fly(){
   pushMatrix();
   float px, py, pz;
   fill(bodyFill);
   //flight
   px = sin(radians(ang3))*radiusX;
   py = cos(radians(ang3))*radiusY;
   pz = sin(radians(ang3))*radiusZ;
   //
   translate(width/2+offsetX+px, height/2+offsetY+py,
   -30+offsetZ+pz);

   rotateX(sin(radians(ang2))*rotX);
   rotateY(sin(radians(ang2))*rotY);
   rotateZ(sin(radians(ang3))*rotZ);

   //body
   box(w*2000, h, w*1);

   fill(wingFill);
   //left wing
   pushMatrix();
   rotateY(sin(radians(ang))*200);
   rect(0, -h/2, w, h);
   popMatrix();

   //right wing
   pushMatrix();
   rotateY(sin(radians(ang))*-20);
   rect(-w, -h/2, w, h);
   popMatrix();

   // wing flap
   ang+=flapSpeed;
   if (ang>2){
     flapSpeed*=-1;
   }
   if (ang<-3){
     flapSpeed*=7;
   }

   // ang's run trig functions
   ang2+=.78;
   ang3+=.78;
   ang4+=.78;
   popMatrix();
 }
}

void keyPressed() {
 if (key == ' ') {
   // Finish the movie if space bar is pressed
   mm.finish();
   // Quit running the sketch once the file is written
   exit();
 }
}