java.lang.UnsatisfiedLinkError：无法从加载器加载avutil dalvik.system.PathClassLoader findLibrary返回null

我使用fmmr.jar从URL创buildvideo文件的缩略图。 此前，这一切都很好，但现在它给不满意的链接错误。

这是堆栈跟踪：

  01-29 13:27:10.816: E/AndroidRuntime(17217): FATAL EXCEPTION: AsyncTask #3 01-29 13:27:10.816: E/AndroidRuntime(17217): Process: com.bdcs.corporate.VikramSingh, PID: 17217 01-29 13:27:10.816: E/AndroidRuntime(17217): java.lang.RuntimeException: An error occured while executing doInBackground() 01-29 13:27:10.816: E/AndroidRuntime(17217): at android.os.AsyncTask$3.done(AsyncTask.java:300) 01-29 13:27:10.816: E/AndroidRuntime(17217): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355) 01-29 13:27:10.816: E/AndroidRuntime(17217): at java.util.concurrent.FutureTask.setException(FutureTask.java:222) 01-29 13:27:10.816: E/AndroidRuntime(17217): at java.util.concurrent.FutureTask.run(FutureTask.java:242) 01-29 13:27:10.816: E/AndroidRuntime(17217): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231) 01-29 13:27:10.816: E/AndroidRuntime(17217): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) 01-29 13:27:10.816: E/AndroidRuntime(17217): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) 01-29 13:27:10.816: E/AndroidRuntime(17217): at java.lang.Thread.run(Thread.java:841) 01-29 13:27:10.816: E/AndroidRuntime(17217): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load avutil from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.bdcs.corporate.VikramSingh-1.apk,libraryPath=/data/app-lib/com.bdcs.corporate.VikramSingh-1]: findLibrary returned null 01-29 13:27:10.816: E/AndroidRuntime(17217): at java.lang.Runtime.loadLibrary(Runtime.java:358) 01-29 13:27:10.816: E/AndroidRuntime(17217): at java.lang.System.loadLibrary(System.java:526) 01-29 13:27:10.816: E/AndroidRuntime(17217): at wseemann.media.FFmpegMediaMetadataRetriever.<clinit>(FFmpegMediaMetadataRetriever.java:120) 01-29 13:27:10.816: E/AndroidRuntime(17217): at com.bdcs.coporate.videothumbnail.ThumbnailExtractor.createVideoThumbnail(ThumbnailExtractor.java:23) 01-29 13:27:10.816: E/AndroidRuntime(17217): at com.bdcs.corporate.publicinfo.ListAdapter$1.doInBackground(ListAdapter.java:113) 01-29 13:27:10.816: E/AndroidRuntime(17217): at com.bdcs.corporate.publicinfo.ListAdapter$1.doInBackground(ListAdapter.java:1) 01-29 13:27:10.816: E/AndroidRuntime(17217): at android.os.AsyncTask$2.call(AsyncTask.java:288) 01-29 13:27:10.816: E/AndroidRuntime(17217): at java.util.concurrent.FutureTask.run(FutureTask.java:237) 01-29 13:27:10.816: E/AndroidRuntime(17217): ... 4 more 

这是我的libs文件夹：

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它包含.so文件，但libavutil.so无法加载。