我有在android中创建慢动作视频应用程序,我可以尝试设置视频运动速度在任何开始和结束的位置在总视频长度。
但是在start FFmpegFrameGrabber中出现了一些错误。
下面是我的代码:
private class PrepareMedia extends AsyncTask<Void, Void, Void> {
private PrepareMedia() {
}
protected Void doInBackground(Void... params) {
FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(viewSource);
try {
grabber.start();
grabber.stop();
grabber.release();
} catch (Exception e) {
Log.e(TAG, "doInBackground: ");
}
return null;
}
}
查看我的错误。
01-12 15:59:16.374 14990-14990/com.example.slowmotiondemo E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.slowmotiondemo, PID: 14990
java.lang.UnsatisfiedLinkError: org.bytedeco.javacpp.avutil
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:324)
at org.bytedeco.javacpp.Loader.load(Loader.java:585)
at org.bytedeco.javacpp.Loader.load(Loader.java:530)
at org.bytedeco.javacpp.avformat$AVFormatContext.<clinit>(avformat.java:2819)
at org.bytedeco.javacv.FFmpegFrameGrabber.startUnsafe(FFmpegFrameGrabber.java:468)
at org.bytedeco.javacv.FFmpegFrameGrabber.start(FFmpegFrameGrabber.java:462)
at com.example.slowmotiondemo.ActivityCutMergeVideo.prepareMediaForOreantation(ActivityCutMergeVideo.java:687)
at com.example.slowmotiondemo.ActivityCutMergeVideo.onCreate(ActivityCutMergeVideo.java:507)
at android.app.Activity.performCreate(Activity.java:6904)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1136)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3266)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3415)
at android.app.ActivityThread.access$1100(ActivityThread.java:229)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1821)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:7331)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
请告诉我如何解决错误。
发布于 2018-02-27 17:33:28
首先尝试手动安装javacv (https://github.com/bytedeco/javacv#manual-installation)。
然后尝试从jar中提取.so文件,并将它们放入app/src/main/jniLibs中。
如果这也不起作用,那么使用这个手册:https://github.com/bytedeco/javacpp-presets/wiki/The-UnsatisfiedLinkError-X-File-%28a-real-experience%29
https://stackoverflow.com/questions/48224531
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