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• Exception in thread "main" java.lang.NoClassDefFoundError : Could not initialize class org.bytedeco.javacpp.avutil"

  12 décembre 2016, par Ajinkya

  public static class AVFormatContext extends Pointer {
  
      static { Loader.load(); }
  
      /** Default native constructor. */
  
      public AVFormatContext() { super((Pointer)null); allocate(); }
  
      /** Native array allocator. Access with {@link Pointer#position(long)}. */
  
      public AVFormatContext(long size) { super((Pointer)null); allocateArray(size); }
  
      /** Pointer cast constructor. Invokes {@link Pointer#Pointer(Pointer)}. */
  
      public AVFormatContext(Pointer p) { super(p); }
  
      private native void allocate();
  
      private native void allocateArray(long size);
  
      @Override public AVFormatContext position(long position) {
  
          return (AVFormatContext)super.position(position);
  
  }

  I’ve tried to run a java application with an FFMmpegFrameGrabber while trying to run on windows. However same jar file runs on linux with no exceptions.

  I have included javacpp and javacv jars .

  However while running on windows I am getting this error
  main" java.lang.NoClassDefFoundError : Could not initialize class org.bytedeco.javacpp.avutil"

  Stacktrace of exception

  Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize
  
  class org.bytedeco.javacpp.avutil
  
          at java.lang.Class.forName0(Native Method)
  
          at java.lang.Class.forName(Unknown Source)
  
          at org.bytedeco.javacpp.Loader.load(Loader.java:413)
  
          at org.bytedeco.javacpp.Loader.load(Loader.java:381)
  
          at org.bytedeco.javacpp.avformat$AVFormatContext.<clinit>(avformat.java:
  
  2719)
  
          at org.bytedeco.javacv.FFmpegFrameGrabber.startUnsafe(FFmpegFrameGrabber
  
  .java:391)
  
          at org.bytedeco.javacv.FFmpegFrameGrabber.start(FFmpegFrameGrabber.java:
  
  385)
  
          at testffmpeg.NewStreamer.StartandRestart(NewStreamer.java:191)
  
          at testffmpeg.NewStreamer.<init>(NewStreamer.java:95)
  
          at testffmpeg.NewStreamer.main(NewStreamer.java:91)
  
  </init></clinit>

• Exception in thread "main" java.lang.UnsatisfiedLinkError : no jniavutil in java.library.path

  29 novembre 2016, par tpm900

  I am trying to split a video into frames using FFmpegFrameGrabber (using code I have seen in tutorials) but am getting an exception as follows :

  The code :

  public BufferedImage getNextFrame() {
  
      FFmpegFrameGrabber fFmpegFrameGrabber = new FFmpegFrameGrabber("resources/WebPage.mp4");
  
      BufferedImage bufferedImage = null;
  
      opencv_core.IplImage i;
  
      try {
  
          fFmpegFrameGrabber.start();
  
          i = fFmpegFrameGrabber.grab();
  
          bufferedImage = i.getBufferedImage();
  
      } catch (Exception e) {
  
          e.printStackTrace();
  
          try {
  
              fFmpegFrameGrabber.stop();
  
          } catch (Exception e1) {
  
              e1.printStackTrace();
  
          }
  
      }
  
      return bufferedImage;
  
  }

  The stack trace :

  Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniavutil in java.library.path
  
  at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1867)
  
  at java.lang.Runtime.loadLibrary0(Runtime.java:870)
  
  at java.lang.System.loadLibrary(System.java:1122)
  
  at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:593)
  
  at com.googlecode.javacpp.Loader.load(Loader.java:489)
  
  at com.googlecode.javacpp.Loader.load(Loader.java:431)
  
  at com.googlecode.javacv.cpp.avutil.<clinit>(avutil.java:76)
  
  at java.lang.Class.forName0(Native Method)
  
  at java.lang.Class.forName(Class.java:348)
  
  at com.googlecode.javacpp.Loader.load(Loader.java:453)
  
  at com.googlecode.javacv.cpp.avcodec.<clinit>(avcodec.java:87)
  
  at com.googlecode.javacv.FFmpegFrameGrabber.<init>(FFmpegFrameGrabber.java:73)
  
  at MP4VideoCodec.getNextFrame(MP4VideoCodec.java:16)
  
  at MP4VideoCodec.<init>(MP4VideoCodec.java:12)
  
  at main.main(main.java:7)
  
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  
  at java.lang.reflect.Method.invoke(Method.java:498)
  
  at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
  
  Caused by: java.lang.UnsatisfiedLinkError: no avutil in java.library.path
  
  at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1867)
  
  at java.lang.Runtime.loadLibrary0(Runtime.java:870)
  
  at java.lang.System.loadLibrary(System.java:1122)
  
  at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:593)
  
  at com.googlecode.javacpp.Loader.load(Loader.java:481)
  
  ... 15 more
  
  </init></init></clinit></clinit>

  How do I correct this exception ?

• Revision ab21378a2e : Merge "Get rid of bashisms in the main build scripts"

  15 août 2013, par James Zern

  Merge "Get rid of bashisms in the main build scripts"