Hi Susanner,
I am also facing the same problem, have you solved it?
if so, please show the code or some snippet.
waiting for your reply...
Thanks,
Manoj
On Mar 5, 9:11 am, susanner <zsusan...@163.com> wrote:
> I have met nearly the same problem, I am implementing the Mediaplayer to my
> hardware board. I haven't tried videoview, I just implemented the video
> player from API demo.But It can't show video. I guess there is some trick
> with this "holder" surface, it is strange that when I delete this sentence,
> my emulator will not show video just as the real board,
> holder.addCallback(this);
> but I added the sentence, although my emulator can successfully play video,
> my real hardware still like before.
> and I am a little bit curious you didn't use this "holder.addCallback(this);"
> here is my program, I haven't solved my problem yet:
>
> public class MediaPlayerDemo_Video extends Activity implements
> OnBufferingUpdateListener, OnCompletionListener,
> MediaPlayer.OnPreparedListener, SurfaceHolder.Callback {
>
> private static final String TAG = "MediaPlayerDemo";
> private int mVideoWidth;
> private int mVideoHeight;
> private MediaPlayer mMediaPlayer;
> private SurfaceView mPreview;
> private SurfaceHolder holder;
> private String path;
> private Bundle extras;
> private static final String MEDIA = "media";
> private static final int LOCAL_AUDIO = 1;
> private static final int STREAM_AUDIO = 2;
> private static final int RESOURCES_AUDIO = 3;
> private static final int LOCAL_VIDEO = 4;
> private static final int STREAM_VIDEO = 5;
>
> /**
> *
> * Called when the activity is first created.
> */
> public void onCreate(Bundle icicle) {
> super.onCreate(icicle);
> setContentView(R.layout.mediaplayer_2);
> mPreview = (SurfaceView) findViewById(R.id.surface);
> holder = mPreview.getHolder();
> holder.addCallback(this);
> holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
> extras = getIntent().getExtras();
>
> }
>
> private void playVideo(Integer Media) {
> try {
>
> switch (Media) {
> case LOCAL_VIDEO:
> /*
> * TODO: Set the path variable to a local media file path.
> */
> path = "";
> /* if (path == "") {
> // Tell the user to provide a media file URL.
> Toast
> .makeText(
> MediaPlayerDemo_Video.this,
> "Please edit MediaPlayerDemo_Video
> Activity, "
> + "and set the path variable
> to your media file path."
> + " Your media file must be
> stored on sdcard.",
> Toast.LENGTH_LONG).show();
>
> }*/
> break;
> case STREAM_VIDEO:
> /*
> * TODO: Set path variable to progressive streamable mp4
> or
> * 3gpp format URL. Http protocol should be used.
> * Mediaplayer can only play "progressive streamable
> * contents" which basically means: 1. the movie atom has
> to
> * precede all the media data atoms. 2. The clip has to be
> * reasonably interleaved.
> *
> */
> path = "";
> if (path == "") {
> // Tell the user to provide a media file URL.
> Toast
> .makeText(
> MediaPlayerDemo_Video.this,
> "Please edit MediaPlayerDemo_Video
> Activity,"
> + " and set the path variable
> to your media file URL.",
> Toast.LENGTH_LONG).show();
>
> }
>
> break;
>
> }
>
> // Create a new media player and set the listeners
> mMediaPlayer = new MediaPlayer();
> AssetFileDescriptor afd = getResources().openRawResourceFd
> (R.raw.movie);
> Log.v(TAG,afd.toString());
> mMediaPlayer.setDataSource(afd.getFileDescriptor(),
> afd.getStartOffset(), afd.getLength());
>
> // mMediaPlayer.setDataSource(path);
> mMediaPlayer.setDisplay(holder);
> mMediaPlayer.prepare();
> mMediaPlayer.setOnBufferingUpdateListener(this);
> mMediaPlayer.setOnCompletionListener(this);
> mMediaPlayer.setOnPreparedListener(this);
> mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
> Log.d(TAG, "mMediaPlayer.start is to be called");
> mMediaPlayer.start();
>
> } catch (Exception e) {
> Log.e(TAG, "error: " + e.getMessage(), e);
> }
> }
>
> public void onBufferingUpdate(MediaPlayer arg0, int percent) {
> Log.d(TAG, "onBufferingUpdate percent:" + percent);
>
> }
> /**
> * you don't call onPrepared() yourself. If you set an
> *PreparedListener, its onPrepared() method will be called for you.
> */
> public void onCompletion(MediaPlayer arg0) {
> Log.d(TAG, "onCompletion called");
> }
>
> public void onPrepared(MediaPlayer mediaplayer) {
> Log.d(TAG, "onPrepared called");
> mVideoWidth = mMediaPlayer.getVideoWidth();
> mVideoHeight = mMediaPlayer.getVideoHeight();
> if (mVideoWidth != 0 && mVideoHeight != 0) {
> holder.setFixedSize(mVideoWidth, mVideoHeight);
>
> }
>
> }
>
> public void surfaceChanged(SurfaceHolder surfaceholder, int i, int j, int
> k) {
> Log.d(TAG, "surfaceChanged called");
>
> }
>
> public void surfaceDestroyed(SurfaceHolder surfaceholder) {
> Log.d(TAG, "surfaceDestroyed called");
> }
>
> public void surfaceCreated(SurfaceHolder holder) {
> // TODO Auto-generated method stub
> Log.d(TAG, "surfaceCreated called");
> playVideo(extras.getInt(MEDIA));
>
> }
>
> @Override
> protected void onDestroy() {
> super.onDestroy();
> // TODO Auto-generated method stub
> if (mMediaPlayer != null) {
> mMediaPlayer.release();
> mMediaPlayer = null;
> }
>
> }
>
> }
>
> 在2009-03-04，zypsg <zhaoyongp...@gmail.com> 写道：
>
>
>
> >Hi, A surprising problem occurs when I try to play Video, I can only
> >hear the sound part of the video. My code snippet is below:
>
> >public class VideoDemo extends Activity {
>
> > public static final int MENU_PLAYER=Menu.FIRST;
> > public static final int MENU_VIDEO=MENU_PLAYER+1;
> > private final static String VIDEOURL="/sdcard/10-58-26.3gp";
> > /** Called when the activity is first created. */
> > @Override
> > public void onCreate(Bundle savedInstanceState) {
> > super.onCreate(savedInstanceState);
> > setContentView(R.layout.main);
> > // playVideoByVideoView(VIDEOURL);
> > }
> > private void playVideoByVideoView(String fileURL){
> >// this.getWindow().setFormat(PixelFormat.TRANSLUCENT);
> > setContentView(R.layout.videoview);
> > VideoView videoView=(VideoView)findViewById(R.id.surface_view);
>
> >// videoView.setVisibility(SurfaceView.VISIBLE);
> > videoView.bringToFront();
> > videoView.setVideoPath(fileURL);
> > videoView.setMediaController(new MediaController(this));
> > videoView.requestFocus();
> >// videoView.start();
> > }
> > private void playVideoByMediaPlayer(String fileURL){
> > MediaPlayer mp = new MediaPlayer();
> > SurfaceView sv =new SurfaceView(this);
> > try {
> > mp.setDataSource(fileURL);
> > mp.setDisplay(sv.getHolder());
> > mp.prepare();
> > mp.start();
> > } catch (IllegalArgumentException e) {
> > // TODO Auto-generated catch block
> > e.printStackTrace();
> > mp.release();
>
> > } catch (IllegalStateException e) {
> > // TODO Auto-generated catch block
> > e.printStackTrace();
> > mp.release();
> > } catch (IOException e) {
> > // TODO Auto-generated catch block
> > e.printStackTrace();
> > mp.release();
> > }
> > }
> > @Override
> > public boolean onCreateOptionsMenu(Menu menu) {
> > // TODO Auto-generated method stub
> > boolean ret= super.onCreateOptionsMenu(menu);
> > menu.add(0, MENU_PLAYER, 0, "MediaPlayer");
> > menu.add(0, MENU_VIDEO, 0, "VideoView");
> > return ret;
> > }
> > @Override
> > public boolean onMenuItemSelected(int featureId, MenuItem item) {
> > // TODO Auto-generated method stub
> > boolean ret= super.onMenuItemSelected(featureId, item);
> > switch(item.getItemId()){
> > case MENU_PLAYER:
> > playVideoByMediaPlayer(VIDEOURL);
>
> > break;
> > case MENU_VIDEO:
> > playVideoByVideoView(VIDEOURL);
> > break;
> > }
> > return ret;
> > }
> >}
>
> >But when I invoke playVideoByVideoView() method in onCreate() ,I can
> >see the video part. Can anybody tell me why this problem happen? How
> >can I solve this problem. Thanks Very Much!
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