I'm having problems with a webcam/videocam connected to Processing.

The following (stripped down and simple) code:

import processing.video.*;

Capture myCapture;

void setup() {
 size(320, 320);  
 myCapture = new Capture(this, width, height, 24);
}
void captureEvent(Capture myCapture) {
 myCapture.read();
}
void draw() {
 image(myCapture, 0, 0);
}

---

gives me the following error EVERY OTHER TIME when I run the code (as the QT library was not closed or initiated properly) and EVERY TIME when there is no webcam or video cam connected:


quicktime.std.StdQTException[QTJava:6.1.0g1],-9405=couldntGetRequiredComponent,QT.vers:6528000
quicktime.std.StdQTException[QTJava:6.1.0g1],-9405=couldntGetRequiredComponent,QT.vers:6528000

at quicktime.std.StdQTException.checkError(StdQTException.java:38)
java.lang.ArrayIndexOutOfBoundsException: -1
at processing.app.Runner.message(Runner.java:491)
at processing.app.MessageSiphon.run(MessageSiphon.java:60)
at java.lang.Thread.run(Thread.java:552)


---

any ideas? Is it me doing something wrong?
(should I need to have a try statement in the initialization of the video to see if there is a connected camera? - I would think this should be a task that Processing should perform under the hood).

And I am on OS X 10.3.8 - Processing BETA 90.
njetti

thanks st33d.

I tried adding this to the code:

void mousePressed() {
 println(Capture.list());      
}

and it only gives me "null" as result.

I am using a Sony DV cam connected through the Firewire, by the way.
(and it works in 1 out of 2 times when I run the program).

I still can't see why I am getting this error when there is no camera connected.

: ) Well, that's quite funny. Yes yes.

But if you read my post above, I am asking why the error report appears and what it means. And I cannot run my program if a Webcam is not connected (which did not happen in 0087). Everything crashes. I think it should just run silently and just omit displaying the webcam image.

I am also asking why this error report appears in 1 out of 2 times WHEN the camera is actually connected.

I am also wondering if I should use a try statement to detect if there is a camera, but then I think that's something Processing should do under the hood, just as it appears to do in 0068.

(to be honest, I find the BETA quite problematic in my programs, I cannot use the webcam properly unless I use P3D, and the P3D renderer does not even draw rects properly, so I try OpenGL, but it cannot detect set and pixels. I have basically gone back to 0068. But I am looking forward to these things being fixed. Keep up the good work).

Edit : I accidentially wrote version 0078 where I meant 68. I changed it