Playing video in a GLSurfaceView instead of SurfaceView
Solution 1
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
}
});
Solution 2
Check out the code available here for playing a video using OpenGl ES 2.0 with GLSurfaceView
https://github.com/satish13131/Android_Programs/tree/master/graphics/opengl/video/surfaceview
It involves OpenGL rendering for video
Lior Iluz
Updated on June 09, 2022Comments
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Lior Iluz almost 2 years
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); } }
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Lior Iluz almost 12 yearsAs I mentioned "Seems like a fairly simple casting mistake but I couldn't find any reason for that..." I don't know why it prints this error message.. as I used only my GLSurfaceView directly... in XML I used: com.commonsware.android.camera.GLSurfaceView and in Java I imported my class and the import is ok...
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Lior Iluz almost 12 yearsI also tried renaming it (even deleted and created a new one named MyGLSurfaceView)... same error.