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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>

• checkasm : Explicitly declare function prototypes

  20 août 2015, par Henrik Gramner

  checkasm : Explicitly declare function prototypes
  Now we no longer have to rely on function pointers intentionally
  
  declared without specified argument types.
  This makes it easier to support functions with floating point parameters
  
  or return values as well as functions returning 64-bit values on 32-bit
  
  architectures. It also avoids having to explicitly cast strides to
  
  ptrdiff_t for example.
  Signed-off-by : Anton Khirnov <anton@khirnov.net>
  

  • [DBH] tests/checkasm/Makefile
  • [DBH] tests/checkasm/bswapdsp.c
  • [DBH] tests/checkasm/checkasm.c
  • [DBH] tests/checkasm/checkasm.h
  • [DBH] tests/checkasm/h264pred.c
  • [DBH] tests/checkasm/h264qpel.c
  • [DBH] tests/checkasm/x86/checkasm.asm

• Installing faad library for ffmpeg through Homebrew on mac OS X Lion

  14 décembre 2011, par alex

  Following up with my previous question, I decided to give Ffmpeg a try and installed it on my Mac with Homebrew.

  I am now trying to follow this tutorial and use the linked script. But can't make/install the script. I first corrected a small bug (replaced CODEC_TYPE_AUDIO, CODEC_TYPE_VIDEO and PKT_FLAG_KEY with AVMEDIA_TYPE_AUDIO, AVMEDIA_TYPE_VIDEO, and AV_PKT_FLAG_KEY respectively in live_segmenter.c). But now, when I run make in the unzipped folder, I get the following warning and error messages :

  gcc -Wall -g live_segmenter.c -o live_segmenter -lavformat -lavcodec -lavutil -lbz2 -lm -lz -lfaac -lmp3lame -lx264 -lfaad -lpthread
  
  live_segmenter.c: In function ‘main’:
  
  live_segmenter.c:149: warning: ‘av_open_input_file’ is deprecated (declared at /usr/local/include/libavformat/avformat.h:1093)
  
  live_segmenter.c:165: warning: implicit declaration of function ‘guess_format’
  
  live_segmenter.c:165: warning: initialization makes pointer from integer without a cast
  
  live_segmenter.c:208: warning: ‘av_set_parameters’ is deprecated (declared at /usr/local/include/libavformat/avformat.h:1407)
  
  live_segmenter.c:214: warning: ‘dump_format’ is deprecated (declared at /usr/local/include/libavformat/avformat.h:1535)
  
  live_segmenter.c:232: warning: ‘url_fopen’ is deprecated (declared at /usr/local/include/libavformat/avio.h:279)
  
  live_segmenter.c:238: warning: ‘av_write_header’ is deprecated (declared at /usr/local/include/libavformat/avformat.h:1465)
  
  live_segmenter.c:283: warning: ‘put_flush_packet’ is deprecated (declared at /usr/local/include/libavformat/avio.h:293)
  
  live_segmenter.c:284: warning: ‘url_fclose’ is deprecated (declared at /usr/local/include/libavformat/avio.h:280)
  
  live_segmenter.c:289: warning: ‘url_fopen’ is deprecated (declared at /usr/local/include/libavformat/avio.h:279)
  
  live_segmenter.c:326: warning: ‘url_fclose’ is deprecated (declared at /usr/local/include/libavformat/avio.h:280)
  
  ld: library not found for -lfaad
  
  collect2: ld returned 1 exit status
  
  make: *** [all] Error 1

  I also downloaded the faac/faad libraries from here. When I run make in faac, it says I have nothing to install, but I can't find out how to install faad...

  Would love any help you can offer !