java.lang.UnsatisfiedLinkError：无法从loader dalvik.system.PathClassLoader加载avutil findLibrary返回null

Question

我正在使用fmmr.jar从网址创建视频文件的缩略图。早些时候，这一切都很好，但现在它给出了不满意的链接错误。

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：

它包含.so个文件，但libavutil.so无法加载。