as a absolute beginer i want to modify a existing program for processingALPHA, found at

http://www.flong.com/writings/lists/list_slit_scan_img/jenkins_slit_camera.pde

to use instead of a live video a videofile. Tried with BVideo, but doesn't work yet.


BVideo vid;
int vid_width     = 320;
int vid_height    = 240;
int vid_fetch_loc = vid_width/2;
int window_width    = 800;
int window_height   = video_height;
int sample_width    = 1;

int draw_position   = window_width - sample_width;  // iterator
boolean b_newFrame  = false; // fresh-frame flag

//--------------------------------------------
void setup(){
 size(window_width, window_height);
 loadVideo("MyFile.mov");
 background(0);
}

//--------------------------------------------
void videoEvent() {
 b_newFrame = true;
}

//--------------------------------------------
void loop() {
 if (b_newFrame) {
   replicate(video,
    vid_fetch_loc,   0, vid_fetch_loc+sample_width, vid_height,
    draw_position + 0, 0, draw_position + sample_width, vid_height);
   
   draw_position -= sample_width;
   if (draw_position < 0) {
     draw_position = window_width - sample_width;
   }
   b_newFrame = false;
 }
}



Can someone help me?

-piille-