QTJava problems using Eclipse

joshuar

QTJava problems using Eclipse

in Integration and Hardware • 2 years ago

I'm using Eclipse to develop in Processing, but can't make Movie work. I've search forums far and wide for a solution.

The problem seems to be around QTJava; no matter what I do, the following error happens:

"java.lang.UnsatisfiedLinkError: no QTJava in java.library.path"

Solutions I've already investigated include:
- changing system variables (QTJAVA and CLASSPATH)
- trying to find a QTJava.dll that works (The only DLL with this name I can find seems to only work on a 32 bit system)
- setting QTJava's native source to the system Quicktime folder

One question you might be able to answer towards me finding a solution is: do I need to use QTJava.dll (which I can't find on a 64 bit system), or just QTJava.zip (which I do have, but doesn't seem to be findable)?

Any suggestions at all would be very much appreciated, as I've reached a bit of a cul-de-sac.
Thank you.

Replies(1)

eerriicc

Re: QTJava problems using Eclipse

2 years ago

After finding your question (since I had the same problem) and fiddling around a bit, I found a solution.

First of all, installing Quicktime added QTJava.zip to my JRE, so you should find this when you open the JRE System Library in your Eclipse project.

Second, what applies to OpenCV and its native libraries also applies to QuickTime: You need to attach a native library to your JAR.

For Processing I built a handy user library in Eclipse which I can use in all of my projects. In there I connected the video.jar to its Native library location for Quicktime. In other words, I opened the video.jar node, clicked on "Native library location" and then on "Edit..." and pointed it to "C:\Program Files\QuickTime\QTSystem".

Here's my exported user library. Of course, your paths will be different...

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<eclipse-userlibraries version="2">
    <library name="Processing" systemlibrary="false">
        <archive nativelibpaths="C:/Programme/processing-1.5.1/modes/java/libraries/OpenCV/library" path="C:/Programme/processing-1.5.1/modes/java/libraries/OpenCV/library/OpenCV.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/controlP5/library/controlP5.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/minim/library/jl1.0.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/minim/library/jsminim.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/minim/library/minim.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/minim/library/minim-spi.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/minim/library/mp3spi1.9.4.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/minim/library/tritonus_aos.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/minim/library/tritonus_share.jar"/>
        <archive nativelibpaths="C:/Programme/processing-1.5.1/modes/java/libraries/opengl/library/windows32" path="C:/Programme/processing-1.5.1/modes/java/libraries/opengl/library/gluegen-rt.jar"/>
        <archive nativelibpaths="C:/Programme/processing-1.5.1/modes/java/libraries/opengl/library/windows32" path="C:/Programme/processing-1.5.1/modes/java/libraries/opengl/library/jogl.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/opengl/library/opengl.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/pdf/library/itext.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/pdf/library/pdf.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/procontroll/library/procontroll.jar"/>
        <archive path="C:/Programme/processing-1.5.1/modes/java/libraries/shapetween/library/shapetween.jar"/>
        <archive nativelibpaths="C:/Programme/QuickTime/QTSystem" path="C:/Programme/processing-1.5.1/modes/java/libraries/video/library/video.jar"/>
        <archive path="C:/Programme/processing-1.5.1/lib/core.jar"/>
    </library>
</eclipse-userlibraries>

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