如何使用ijkplayer库

Question

我将使用ijkplayer github链接。我下载了这个文件，然后通过File > import > General >现有项目导入到Workspace中。在那之后我有三个项目：

1.ijkmediaplayer ( library )
2.ijkmediawidget ( VideoView-like interface )
3.ijkmediademo   ( Demo project )

当我运行ijkmediademo时，会发生错误并导致程序崩溃。我发现了这些错误：

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)

程序似乎找不到一些在IjkMediaPlayer类中设置的库：

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;
        }
    }
}

这些图书馆是什么？

这些图书馆在哪里？(我在项目中找不到)

如何解决这个问题？

Answer 1

似乎你还没有建立所需的库-你必须自己去做。按照标题下的说明，在页面上构建Android ijkplayer github链接。

在成功构建过程之后，您将获得几个库文件(libijkffmpeg、libijkutil、libijkadk、libijksdl、libijkplayer)，这些文件将自动放入ijkmediaplayer/libs文件夹。

我已经在VirtualBox Ubuntu12.04下成功地构建了ijkplayer库。你必须安装Android。