如何使用RajawaliVR或Rajawali播放360视频

Question

我很难弄清楚如何使用Rajawali播放360视频.为了实现这一点,我尝试了我能在互联网上找到的所有解决方案,但我失败了.

首先,我使用了RajawaliCardboard,让MainActivity扩展CardboardActivity.同时,在MyRenderer课堂上,我让这门课从课堂上延伸出来RajawaliCardboardRenderer.在MyRenderer课堂上,我重写了这个initScene()功能:

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,但屏幕是黑色的,没有图像.
我想问一下我应该怎么做才能改进我的程序,以及为什么我应该使用Rajawali来播放视频.谁能帮我？

Answer 1

我成功地与Rajawali一起播放视频.

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();
    }
    public void nextVideo(String nextVideoPath){
        try{
            mMediaPlayer.stop();
            mMediaPlayer.reset();

            mMediaPlayer.setDataSource(nextVideoPath);
            mMediaPlayer.prepare();
            mMediaPlayer.start();

      }catch (Exception e){
        e.printStackTrace();
      }
    }
}