I am new to Processing. I'll be very grateful if somebody can help me. I am not able to captured into Processing from my IIDC FireWire Video/ DVCPRO HD (1080i50) camera.

When I open Photobooth or any other programme it will recognise the camera connected through the Firewire, but I can't make it work through Processing, instead I get the integrated webcam of my computer Buiilt-in_isight.
I did lots of trials. It reads the camera in Quick time version 10. My operating system,: Mac ox 10.6.8
My camera is a sony full HD 1080.
I'm using Processing 1.5.1 and GSVideo 0.9
Thanks you in advance.
The option should be [1] "DVCPRO HD (1080i50)" but I tried to replace all the different options that appears and none of them works.

[0] "DV Video"
[1] "DVCPRO HD (1080i50)"
[2] "DVCPRO HD (1080i60)"
[3] "DVCPRO HD (720p25/50)"
[4] "DVCPRO HD (720p60)"
[5] "Google Camera Adapter 0"
[6] "Google Camera Adapter 1"
[7] "IIDC FireWire Video"
[8] "USB Video Class Video"



This is the code I am using:

import processing.opengl.*;
import codeanticode.glgraphics.*;
import codeanticode.gsvideo.*;

GSCapture cam;
GLTexture tex;

void setup() {
  size(640, 480, GLConstants.GLGRAPHICS);
 
  cam = new GSCapture(this, 640, 480);
 
  // Use texture tex as the destination for the camera pixels.
  tex = new GLTexture(this);
  cam.setPixelDest(tex);    
  cam.play();
 
  /*
  // You can get the resolutions supported by the
  // capture device using the resolutions() method.
  // It must be called after creating the capture
  // object.
  int[][] res = cam.resolutions();
  for (int i = 0; i < res.length; i++) {
    println(res[i][0] + "x" + res[i][1]);
  }
  */
 
  /*
  // You can also get the framerates supported by the
  // capture device:
  String[] fps = cam.framerates();
  for (int i = 0; i < fps.length; i++) {
    println(fps[i]);
  }
  */ 
}

void captureEvent(GSCapture cam) {
  cam.read();
}

void draw() {
  // If there is a new frame available from the camera, the
  // putPixelsIntoTexture() function will copy it to the
  // video card and will return true.
  if (tex.putPixelsIntoTexture()) {
    image(tex, 0, 0, width, height);
  }
}