如何使用RajawaliVR或拉贾瓦利发挥360视频 [英] How to use RajawaliVR or Rajawali to play a 360 Video

问题描述

我有一个很难弄清楚如何使用拉贾瓦利播放360视频。为了做到这一点，我想每一个解决方案，我可以找到在互联网上，但我失败了。

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.

首先，我用了RajawaliCardboard，并让MainActivity从 CardboardActivity 延伸。与此同时，在 MyRenderer 类，我让这个类从 RajawaliCardboardRenderer 类扩展。在 MyRenderer 类，我overrided的 initScene（）功能：

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;
}

该程序可以运行，没有任何错误，但屏幕是黑的，没有任何图像。
我想请问我应该怎么做才能提高我的程序，为什么我应该做的使用拉贾瓦利播放视频。谁可以帮我？

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?

推荐答案

我的成功与拉贾瓦利播放视频。

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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