问题
I'm going to use ijkplayer github link. I downloaded this and then import it to eclipse by File > Import > General > Existing Projects to Workspace. After that I have three project:
1.ijkmediaplayer ( library )
2.ijkmediawidget ( VideoView-like interface )
3.ijkmediademo ( Demo project )
When I run ijkmediademo, Error happened and program crashed. I got these lines of error:
07-06 14:06:26.913: E/AndroidRuntime(11394): FATAL EXCEPTION: main
07-06 14:06:26.913: E/AndroidRuntime(11394): Process: tv.danmaku.ijk.media.demo, PID: 11394
07-06 14:06:26.913: E/AndroidRuntime(11394): java.lang.UnsatisfiedLinkError: Couldn't load ijkffmpeg from loader dalvik.system.PathClassLoader[dexPath=/data/app/tv.danmaku.ijk.media.demo-8.apk,libraryPath=/data/app-lib/tv.danmaku.ijk.media.demo-8]: findLibrary returned null
07-06 14:06:26.913: E/AndroidRuntime(11394): at java.lang.Runtime.loadLibrary(Runtime.java:358)
07-06 14:06:26.913: E/AndroidRuntime(11394): at java.lang.System.loadLibrary(System.java:526)
07-06 14:06:26.913: E/AndroidRuntime(11394): at tv.danmaku.ijk.media.player.IjkMediaPlayer$1.loadLibrary(IjkMediaPlayer.java:86)
07-06 14:06:26.913: E/AndroidRuntime(11394): at tv.danmaku.ijk.media.player.IjkMediaPlayer.loadLibrariesOnce(IjkMediaPlayer.java:95)
07-06 14:06:26.913: E/AndroidRuntime(11394): at tv.danmaku.ijk.media.player.IjkMediaPlayer.initPlayer(IjkMediaPlayer.java:137)
07-06 14:06:26.913: E/AndroidRuntime(11394): at tv.danmaku.ijk.media.player.IjkMediaPlayer.<init>(IjkMediaPlayer.java:133)
07-06 14:06:26.913: E/AndroidRuntime(11394): at tv.danmaku.ijk.media.player.IjkMediaPlayer.<init>(IjkMediaPlayer.java:125)
07-06 14:06:26.913: E/AndroidRuntime(11394): at tv.danmaku.ijk.media.widget.VideoView.openVideo(VideoView.java:244)
07-06 14:06:26.913: E/AndroidRuntime(11394): at tv.danmaku.ijk.media.widget.VideoView.access$30(VideoView.java:229)
07-06 14:06:26.913: E/AndroidRuntime(11394): at tv.danmaku.ijk.media.widget.VideoView$8.surfaceCreated(VideoView.java:502)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.SurfaceView.updateWindow(SurfaceView.java:602)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.SurfaceView.access$000(SurfaceView.java:94)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:183)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:888)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2173)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1246)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6567)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:803)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.Choreographer.doCallbacks(Choreographer.java:603)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.Choreographer.doFrame(Choreographer.java:573)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:789)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.os.Handler.handleCallback(Handler.java:733)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.os.Handler.dispatchMessage(Handler.java:95)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.os.Looper.loop(Looper.java:136)
07-06 14:06:26.913: E/AndroidRuntime(11394): at android.app.ActivityThread.main(ActivityThread.java:5476)
07-06 14:06:26.913: E/AndroidRuntime(11394): at java.lang.reflect.Method.invokeNative(Native Method)
07-06 14:06:26.913: E/AndroidRuntime(11394): at java.lang.reflect.Method.invoke(Method.java:515)
07-06 14:06:26.913: E/AndroidRuntime(11394): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268)
07-06 14:06:26.913: E/AndroidRuntime(11394): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084)
07-06 14:06:26.913: E/AndroidRuntime(11394): at dalvik.system.NativeStart.main(Native Method)
It's seems that program can't find some libraries that sets here in IjkMediaPlayer class:
public static void loadLibrariesOnce(IjkLibLoader libLoader) {
synchronized (IjkMediaPlayer.class) {
if (!mIsLibLoaded) {
libLoader.loadLibrary("stlport_shared");
libLoader.loadLibrary("ijkffmpeg");
libLoader.loadLibrary("ijkutil");
libLoader.loadLibrary("ijkadk");
libLoader.loadLibrary("ijksdl");
libLoader.loadLibrary("ijkplayer");
mIsLibLoaded = true;
}
}
}
what are these libraries?
where are these libraries? ( i could not find them in projects )
How can solve this issue?
回答1:
Seems that you haven't built libraries which are required - you have to do it by yourself. Follow instructions under the header Build Android on the page ijkplayer github link
After successfull build process you'll get several library files (libijkffmpeg, libijkutil, libijkadk, libijksdl, libijkplayer) which will be automatically put into ijkmediaplayer/libs folder.
I've successfully built ijkplayer libraries under VirtualBox Ubuntu 12.04. And you'll have to install Android NDK.
来源：https://stackoverflow.com/questions/24594674/how-to-use-ijkplayer-library