No video with Eclipse Kepler and Processing

kucky

Hello, What am I doing wrong.

package videotest;

import processing.core.*;
import processing.video.*;


public class VideoTest extends PApplet {

Capture cam;    

    public void setup() {
          size(640, 480);

          String[] cameras = Capture.list();   <----- Hier kommt die Fehlermeldung

          if (cameras.length == 0) {
            println("There are no cameras available for capture.");
            exit();
          } else {
            println("Available cameras:");
            for (int i = 0; i < cameras.length; i++) {
              println(cameras[i]);
            }

            // The camera can be initialized directly using an 
            // element from the array returned by list():
            cam = new Capture(this, cameras[0]);
            cam.start();     
          }         

    }

    public void draw() {

         if (cam.available() == true) {
                cam.read();
              }
              image(cam, 0, 0);
              // The following does the same, and is faster when just drawing the image
              // without any additional resizing, transformations, or tint.
              //set(0, 0, cam);
    }
}




Exception in thread "Animation Thread" java.lang.NoClassDefFoundError: com/sun/jna/Platform
    at processing.video.LibraryPath.get(Unknown Source)
    at processing.video.Video.buildWindowsPaths(Unknown Source)
    at processing.video.Video.initImpl(Unknown Source)
    at processing.video.Video.init(Unknown Source)
    at processing.video.Capture.list(Unknown Source)
    at processing.video.Capture.list(Unknown Source)
    at videotest.VideoTest.setup(VideoTest.java:16)
    at processing.core.PApplet.handleDraw(PApplet.java:2361)
    at processing.core.PGraphicsJava2D.requestDraw(PGraphicsJava2D.java:240)
    at processing.core.PApplet.run(PApplet.java:2256)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.sun.jna.Platform
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 11 more

I suspect that the first line shows the error describes. But I do not understand. I am grateful for any help. Software is up to date. With the Processing IDE everything is OK. Regards Willi

PhiLho

What version of Java do you use in your Eclipse project?

kucky

Thank you for your interest. Version 8 Update 31 (Build 1.8.0_31-b13) Regards Willi

kucky

Version: Kepler Release Build id: 20130614-0229

kucky

Hey PhiLho, have a solution?

PhiLho

There are three jar files in processing/modes/java/libraries/video/library, including a jna.jar.
Do you import them all?

kucky

Hey, yes, I have

PhiLho

In your project build settings?
The jna.jar file of Processing 2.2.1 has the missing class.

kucky

Thank you, thank you thank you. I took the 3 jar's from the project folder. That was the mistake. Now it works fine. Best regards Willi

kucky

This can only see an expert. ;)