Wenguang Ma Wenguang Ma - 4 months ago 91
Android Question

How to use RajawaliVR or Rajawali to play a 360 Video

I am having a hard time to figure out how to use the Rajawali to play a 360 video. In order to achieve this, I tried every solution I could find in the Internet, but I failed.

Firstly, I used the RajawaliCardboard, and let the MainActivity extend from

CardboardActivity
. At the same time, in
MyRenderer
class, I let this class extend from the
RajawaliCardboardRenderer
class. In
MyRenderer
class, I overrided the
initScene()
function:

protected void initScene() {
StreamingTexture mTexture = null;
if (externalMemoryAvailable())
{
mVideoPath = Environment.getExternalStorageDirectory().getAbsolutePath()+"/testVideo.mp4";
try{
mPlayer = new MediaPlayer();
mPlayer.setDataSource(mVideoPath);
}catch(IllegalArgumentException e){
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
mPlayer.prepare();
} catch (IOException t) {
t.printStackTrace();
}
mTexture = new StreamingTexture("video", mPlayer);
}
Sphere sphere = createPhotoSphereWithTexture(mTexture);
getCurrentScene().addChild(sphere);
getCurrentCamera().setPosition(Vector3.ZERO);
getCurrentCamera().setFieldOfView(75);
}

private Sphere createPhotoSphereWithTexture(ATexture texture) {
Material material = new Material();
material.setColor(0);
try {
material.addTexture(texture);
} catch (ATexture.TextureException e) {
throw new RuntimeException(e);
}
Sphere sphere = new Sphere(50, 64, 32);
sphere.setScaleX(-1);
sphere.setMaterial(material);
return sphere;
}


The program can run without any error, but the screen is black and with no image.

I want to ask what should I do to improve my program, and why I should do to play video by using Rajawali. Who can help me?

Answer

I got success to play video with Rajawali.

public class VideoRenderer extends RajawaliCardboardRenderer {

    Context mContext;

    private MediaPlayer mMediaPlayer;
    private StreamingTexture mVideoTexture;

    public VideoRenderer(Context context) {
        super(context);
        mContext = context;
    }

    @Override
    protected void initScene() {

        mMediaPlayer = MediaPlayer.create(getContext(),
                R.raw.video);
        mMediaPlayer.setLooping(true);

        mVideoTexture = new StreamingTexture("sintelTrailer", mMediaPlayer);
        Material material = new Material();
        material.setColorInfluence(0);
        try {
            material.addTexture(mVideoTexture);
        } catch (ATexture.TextureException e) {
            e.printStackTrace();
        }

        Sphere sphere = new Sphere(50, 64, 32);
        sphere.setScaleX(-1);
        sphere.setMaterial(material);

        getCurrentScene().addChild(sphere);

        getCurrentCamera().setPosition(Vector3.ZERO);

        getCurrentCamera().setFieldOfView(75);

        mMediaPlayer.start();

    }

    @Override
    protected void onRender(long ellapsedRealtime, double deltaTime) {
        super.onRender(ellapsedRealtime, deltaTime);
        mVideoTexture.update();
    }

    @Override
    public void onPause() {
        super.onPause();
        if (mMediaPlayer != null)
            mMediaPlayer.pause();
    }

    @Override
    public void onResume() {
        super.onResume();
        if (mMediaPlayer != null)
            mMediaPlayer.start();
    }

    @Override
    public void onRenderSurfaceDestroyed(SurfaceTexture surfaceTexture) {
        super.onRenderSurfaceDestroyed(surfaceTexture);
        mMediaPlayer.stop();
        mMediaPlayer.release();
    }
}
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