Playing video in a GLSurfaceView instead of SurfaceView

android, glsurfaceview, surfaceview

Solution

OK, solved this... I had several errors but the final error I present in my question is solved by adding this code to the onCreate:

mPreview.setRenderer(new Renderer() {

            @Override
            public void onSurfaceCreated(GL10 gl, EGLConfig config) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onSurfaceChanged(GL10 gl, int width, int height) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onDrawFrame(GL10 gl) {
                // TODO Auto-generated method stub

            }
        });

Problem

I've been struggling with this for 2 days now... Following this answer: https://stackoverflow.com/a/2006454/444324 - it is mentioned that it's possible to play a video in a GLSurfaceView by altering the MediaPlayerDemo_Video example in API Demos: All you have to do there is to replace the SurfaceView with a GLSurfaceView in both the MediaPlayerDemo_Video.java file as well as in the corresponding layout file (mediaplayer_2.xml). Also you need to create a custom Renderer class (one that implements the GLSurfaceView.Renderer interface) and set it to your GLSurfaceView. I tried replacing the SurfaceView to a GLSurfaceView as suggested, also using this but it just crashes on start: ``` 07-11 14:54:22.086: E/AndroidRuntime(12373): FATAL EXCEPTION: main 07-11 14:54:22.086: E/AndroidRuntime(12373): java.lang.NullPointerException 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.opengl.GLSurfaceView.surfaceCreated(GLSurfaceView.java:512) 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.view.SurfaceView.updateWindow(SurfaceView.java:533) 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.view.SurfaceView.access$000(SurfaceView.java:81) 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:169) 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:590) 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1617) 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2442) 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.os.Handler.dispatchMessage(Handler.java:99) 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.os.Looper.loop(Looper.java:137) 07-11 14:54:22.086: E/AndroidRuntime(12373): at android.app.ActivityThread.main(ActivityThread.java:4575) 07-11 14:54:22.086: E/AndroidRuntime(12373): at java.lang.reflect.Method.invokeNative(Native Method) 07-11 14:54:22.086: E/AndroidRuntime(12373): at java.lang.reflect.Method.invoke(Method.java:511) 07-11 14:54:22.086: E/AndroidRuntime(12373): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 07-11 14:54:22.086: E/AndroidRuntime(12373): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 07-11 14:54:22.086: E/AndroidRuntime(12373): at dalvik.system.NativeStart.main(Native Method) ``` I know I can use a VideoView to play a video or just stay with SurfaceView with MediaPlayer but I must use a GLSurfaceView because I need this video to be played on top of the camera surface view. Thank you! Relevant code: my XML: ``` <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <com.commonsware.android.camera.MyGLSurfaceView android:id="@+id/surface" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" /> </LinearLayout> ``` My Class: ``` public class MediaPlayerDemo_Video extends Activity implements OnBufferingUpdateListener, OnCompletionListener, OnPreparedListener, OnVideoSizeChangedListener, SurfaceHolder.Callback { private MediaPlayer mMediaPlayer; private MyGLSurfaceView mPreview; private SurfaceHolder holder; /** * * Called when the activity is first created. */ @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.mediaplayer_2); mPreview = (MyGLSurfaceView) findViewById(R.id.surface); holder = mPreview.getHolder(); holder.addCallback(this); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } } ``` MyGLSurfaceView Class: ``` class MyGLSurfaceView extends android.opengl.GLSurfaceView { public MyGLSurfaceView(Context context, AttributeSet attrs) { super(context, attrs); } } ```

Original source

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