我很难弄清楚如何使用 Rajawali 播放 360 度全景视频。为了实现这一点,我尝试了所有可以在互联网上找到的解决方案,但都失败了。
首先,我使用了 RajawaliCardboard,并让 MainActivity 扩展自 CardboardActivity
。同时,在MyRenderer
类中,我让这个类继承自RajawaliCardboardRenderer
类。在 MyRenderer
类中,我覆盖了 initScene()
函数:
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;
}
程序可以正常运行,但黑屏无图像。
我想问一下我应该如何改进我的程序,以及为什么我应该使用 Rajawali 来播放视频。谁能帮帮我?
最佳答案
我成功地使用 Rajawali 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();
}
}
}
关于android - 如何使用 RajawaliVR 或 Rajawali 播放 360 视频,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32391282/