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Index › Programming Questions & Help › Integration › camera - error: StdQTException
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camera - error: StdQTException (Read 3115 times)
koji
camera - error: StdQTException
Oct 22nd, 2006, 2:14pm  
hej all: I have problems with using the video library. I have quicktime 7 & WinVDIG 1.01 installed but things don't run:


I tried the example:



import processing.video.*;
Capture myCapture;

void setup()
{
 size(200, 200);
 // The name of the capture device is dependent those
 // plugged into the computer. To get a list of the
 // choices, uncomment the following line
 // println(Capture.list());
 String s = "Logitech QuickCam Messenger-WDM";
 myCapture = new Capture(this, s, width, height, 30);
}

void captureEvent(Capture myCapture) {
 myCapture.read();
}

void draw() {
 image(myCapture, 0, 0);
}



and I got this error message:



quicktime.std.StdQTException[QTJava:6.1.5g],-50=paramErr,QT.vers:7138000
at quicktime.std.StdQTException.checkError(StdQTException.java:38)


any suggestions?

thanks in advance:
koji
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fry
Re: camera - error: StdQTException
Reply #1 - Oct 23rd, 2006, 3:46pm  
do you have a "Logitech QuickCam Messenger-WDM"? if not, you need to follow the instructions in the code and put in the name of your camera that shows up from Capture.list().

or, you can remove the 's' parameter altogether, and it will use the default input.
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koji
Re: camera - error: StdQTException
Reply #2 - Oct 23rd, 2006, 6:28pm  
hej fry, thanks for your reply. I tested the code today again in the processing ide and strangly enough it works, but I use eclipse for programming processing and there is still the error message:

java.lang.NoClassDefFoundError: quicktime/std/StdQTException
at myClasses.Core.setup(Core.java:14)
at processing.core.PApplet.handleDisplay(PApplet.java:1237)
at processing.core.PGraphics.requestDisplay(PGraphics.java:568)
at processing.core.PApplet.run(PApplet.java:1406)
at java.lang.Thread.run(Unknown Source)


it stucks already at the println( Capture.list() );:

import processing.video.*;
Capture myCapture;

void setup()  
{
 size(200, 200);  
 println(Capture.list());

}


thanks & best regards,
koji.
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koji
java.lang.UnsatisfiedLinkError: no QTJava in java
Reply #3 - Oct 25th, 2006, 2:40am  
hello again, I steped one step closer but there is still a problem. I forgot to specify the QTJava.zip to the library. now I get this errormessage:

Error while running applet.
java.lang.RuntimeException: java.lang.UnsatisfiedLinkError: no QTJava in java.library.path
     at processing.opengl.PGraphicsOpenGL.requestDisplay(PGraphicsOpenGL.java:245)
     at processing.core.PApplet.run(PApplet.java:1406)
     at java.lang.Thread.run(Unknown Source)


would be thankfull for help. koji





EDIT: CLOSE;

I PUT THE QTJAVA.DLL IN THE FOLDER YOU GET WITH THIS:
System.out.println(System.getProperty("java.library.path"));
NOW IT WORKS.
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« Last Edit: Oct 25th, 2006, 3:59pm by koji »  
 
robsteranium
Re: camera - error: StdQTException
Reply #4 - Mar 15th, 2008, 10:32pm  
Judging by:
http://www.oreillynet.com/mac/blog/2006/12/explaining_the_quartz_composer.html

On mac use:

import quicktime.*;
void setup(){
try{
// initialise qt - on a mac only?
           QTSession.open();
}
catch (Exception e) {
           e.printStackTrace();
}
}
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