我创建了一个从视频捕获帧的类。捕获帧时,将其另存为图片。视频为.avi时,应用程序正常运行。格式为.avi时。

public static void main(String[] args) {

     FFmpegFrameGrabber grabber = new FFmpegFrameGrabber("C:/Users/Ioanna/Desktop/video1.avi");

     try {
         IplImage img;

         //Start grabber to capture video
         grabber.start();

         //grab video frame to IplImage
         img = grabber.grab();

         if (img != null) {
             //save video frame as a picture
             cvSaveImage("capture.jpg", img);
         }

     }catch (Exception e) {
     }
}


错误是

Exception in thread "main" java.lang.ExceptionInInitializerError
    at com.googlecode.javacv.FFmpegFrameGrabber.<init>(FFmpegFrameGrabber.java:106)
    at Video.main(Video.java:75)
Caused by: java.lang.IllegalStateException: Can't overwrite cause with java.lang.UnsatisfiedLinkError: no avcodec in java.library.path
    at java.lang.Throwable.initCause(Throwable.java:457)
    at com.googlecode.javacpp.Loader.load(Loader.java:581)
    at com.googlecode.javacpp.Loader.load(Loader.java:532)
    at com.googlecode.javacv.cpp.avcodec.<clinit>(avcodec.java:39)
    ... 2 more
Caused by: java.lang.UnsatisfiedLinkError: no jniavcodec in java.library.path
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1837)


有人知道是什么问题吗?

提前致谢

最佳答案

在网上搜索了一段时间后,我得出以下解决方案:

步骤1:从以下位置下载.zip文件“ javacv-0.6-cppjars.zip”
https://code.google.com/p/javacv/downloads/list并将其解压缩。

步骤2:将“ ffmpeg-20130915-git-7ac6c63-windows-x86_64.jar”文件添加到您的Java项目中!

08-25 06:49