Android的媒體播放器超過3G連接不工作，但工作在WiFi

我正在使用videoView從URL顯示.mp4視頻的項目。我的代碼在模擬器中工作正常，但在物理設備上（Samsung siii），它只能通過WiFi工作，不能在3G上工作。Android的媒體播放器超過3G連接不工作，但工作在WiFi

2012-11-01 Muhammad Umer

你有3G網絡上的IP連接？網絡有多強大？什麼是網絡技術（GPRS，UMTS，HSPA等）？ –

YouTube視頻通過3G工作正常，和我同一測試視頻與其他玩家VPLAYER和伊茨WROK很好..

這是我的代碼

包com.video;

公共類StreamingVideoPlayer擴展活動實現 OnCompletionListener，OnErrorListener，OnInfoListener， OnBufferingUpdateListener，OnPreparedListener，OnSeekCompleteListener， OnVideoSizeChangedListener，SurfaceHolder.Callback， MediaController.MediaPlayerControl {

MediaController controller; 
Display currentDisplay; 
SurfaceView surfaceView; 
SurfaceHolder surfaceHolder; 
MediaPlayer mediaPlayer; 

View mainView; 
TextView statusView; 

int videoWidth = 0; 
int videoHeight = 0; 

boolean readyToPlay = false; 
public final static String LOGTAG = "STREAMING_VIDEO_PLAYER"; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    setContentView(R.layout.main); 
    mainView = this.findViewById(R.id.MainView); 

    statusView = (TextView) this.findViewById(R.id.StatusTextView); 

    surfaceView = (SurfaceView) this.findViewById(R.id.SurfaceView); 
    surfaceHolder = surfaceView.getHolder(); 

    surfaceHolder.addCallback(this); 
    surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 

    mediaPlayer = new MediaPlayer(); 

    statusView.setText("MediaPlayer Created"); 

    mediaPlayer.setOnCompletionListener(this); 
    mediaPlayer.setOnErrorListener(this); 
    mediaPlayer.setOnInfoListener(this); 
    mediaPlayer.setOnPreparedListener(this); 
    mediaPlayer.setOnSeekCompleteListener(this); 
    mediaPlayer.setOnVideoSizeChangedListener(this); 
    mediaPlayer.setOnBufferingUpdateListener(this); 




    //String filePath = "http://sffsapps.s3.amazonaws.com/02-benefits-100dc.mp4"; 

// String filePath="http://100dcapps.s3.amazonaws.com/droidtest/index.droid.mp4"; 

String filePath="https://100dcapps.s3.amazonaws.com/droidtest/index.mp4"; 

    try { 
     mediaPlayer.setDataSource(filePath); 
    } catch (IllegalArgumentException e) { 
     Log.v(LOGTAG, e.getMessage()); 
     finish(); 
    } catch (IllegalStateException e) { 
     Log.v(LOGTAG, e.getMessage()); 
     finish(); 
    } catch (IOException e) { 
     Log.v(LOGTAG, e.getMessage()); 
     finish(); 
    } 

    statusView.setText("MediaPlayer DataSource Set"); 
    currentDisplay = getWindowManager().getDefaultDisplay(); 
    controller = new MediaController(this); 
} 

public void surfaceCreated(SurfaceHolder holder) { 
    Log.v(LOGTAG, "surfaceCreated Called"); 

    mediaPlayer.setDisplay(holder); 
    statusView.setText("MediaPlayer Display Surface Set"); 

    try { 
     mediaPlayer.prepareAsync(); 
    } catch (IllegalStateException e) { 
     Log.v(LOGTAG, "IllegalStateException " + e.getMessage()); 
     finish(); 
    } 

    statusView.setText("MediaPlayer Preparing"); 
} 

public void surfaceChanged(SurfaceHolder holder, int format, int width, 
     int height) { 
    Log.v(LOGTAG, "surfaceChanged Called"); 
} 

public void surfaceDestroyed(SurfaceHolder holder) { 
    Log.v(LOGTAG, "surfaceDestroyed Called"); 
} 

public void onCompletion(MediaPlayer mp) { 
    Log.v(LOGTAG, "onCompletion Called"); 
    statusView.setText("MediaPlayer Playback Completed"); 
} 

public boolean onError(MediaPlayer mp, int whatError, int extra) { 
    Log.v(LOGTAG, "onError Called"); 
    statusView.setText("MediaPlayer Error"); 
    if (whatError == MediaPlayer.MEDIA_ERROR_SERVER_DIED) { 
     Log.v(LOGTAG, "Media Error, Server Died " + extra); 
    } else if (whatError == MediaPlayer.MEDIA_ERROR_UNKNOWN) { 
     Log.v(LOGTAG, "Media Error, Error Unknown " + extra); 
    } 
    return false; 
} 

public boolean onInfo(MediaPlayer mp, int whatInfo, int extra) { 
    statusView.setText("MediaPlayer onInfo Called"); 
    if (whatInfo == MediaPlayer.MEDIA_INFO_BAD_INTERLEAVING) { 
     Log.v(LOGTAG, "Media Info, Media Info Bad Interleaving " + extra); 
    } else if (whatInfo == MediaPlayer.MEDIA_INFO_NOT_SEEKABLE) { 
     Log.v(LOGTAG, "Media Info, Media Info Not Seekable " + extra); 
    } else if (whatInfo == MediaPlayer.MEDIA_INFO_UNKNOWN) { 
     Log.v(LOGTAG, "Media Info, Media Info Unknown " + extra); 
    } else if (whatInfo == MediaPlayer.MEDIA_INFO_VIDEO_TRACK_LAGGING) { 
     Log.v(LOGTAG, "MediaInfo, Media Info Video Track Lagging " + extra); 
    } /* 
    * Android version 2.0 or higher else if (whatInfo == 
    * MediaPlayer.MEDIA_INFO_METADATA_UPDATE) { Log.v(LOGTAG, 
    * "MediaInfo, Media Info Metadata Update " + extra); } 
    */ 
    return false; 
} 

public void onPrepared(MediaPlayer mp) { 
    Log.v(LOGTAG, "onPrepared Called"); 
    statusView.setText("MediaPlayer Prepared"); 

    videoWidth = mp.getVideoWidth(); 
    videoHeight = mp.getVideoHeight(); 

    Log.v(LOGTAG, "Width: " + videoWidth); 
    Log.v(LOGTAG, "Height: " + videoHeight); 

    if (videoWidth > currentDisplay.getWidth() 
      || videoHeight > currentDisplay.getHeight()) { 
     float heightRatio = (float) videoHeight 
       /(float) currentDisplay.getHeight(); 
     float widthRatio = (float) videoWidth 
       /(float) currentDisplay.getWidth(); 

     if (heightRatio > 1 || widthRatio > 1) { 
      if (heightRatio > widthRatio) { 
       videoHeight = (int) Math.ceil((float) videoHeight 
         /(float) heightRatio); 
       videoWidth = (int) Math.ceil((float) videoWidth 
         /(float) heightRatio); 
      } else { 
       videoHeight = (int) Math.ceil((float) videoHeight 
         /(float) widthRatio); 
       videoWidth = (int) Math.ceil((float) videoWidth 
         /(float) widthRatio); 
      } 
     } 
    } 

    surfaceView.setLayoutParams(new LinearLayout.LayoutParams(videoWidth, 
      videoHeight)); 
    controller.setMediaPlayer(this); 
    controller.setAnchorView(this.findViewById(R.id.MainView)); 
    controller.setEnabled(true); 
    controller.show(); 

    mp.start(); 
    statusView.setText("MediaPlayer Started"); 
} 

public void onSeekComplete(MediaPlayer mp) { 
    Log.v(LOGTAG, "onSeekComplete Called"); 
} 

public void onVideoSizeChanged(MediaPlayer mp, int width, int height) { 
    Log.v(LOGTAG, "onVideoSizeChanged Called"); 

    videoWidth = mp.getVideoWidth(); 
    videoHeight = mp.getVideoHeight(); 

    Log.v(LOGTAG, "Width: " + videoWidth); 
    Log.v(LOGTAG, "Height: " + videoHeight); 

    if (videoWidth > currentDisplay.getWidth() 
      || videoHeight > currentDisplay.getHeight()) { 
     float heightRatio = (float) videoHeight 
       /(float) currentDisplay.getHeight(); 
     float widthRatio = (float) videoWidth 
       /(float) currentDisplay.getWidth(); 

     if (heightRatio > 1 || widthRatio > 1) { 
      if (heightRatio > widthRatio) { 
       videoHeight = (int) Math.ceil((float) videoHeight 
         /(float) heightRatio); 
       videoWidth = (int) Math.ceil((float) videoWidth 
         /(float) heightRatio); 
      } else { 
       videoHeight = (int) Math.ceil((float) videoHeight 
         /(float) widthRatio); 
       videoWidth = (int) Math.ceil((float) videoWidth 
         /(float) widthRatio); 
      } 
     } 
    } 

    surfaceView.setLayoutParams(new LinearLayout.LayoutParams(videoWidth, 
      videoHeight)); 
} 

public void onBufferingUpdate(MediaPlayer mp, int bufferedPercent) { 
    statusView.setText("MediaPlayer Buffering: " + bufferedPercent + "%"); 
    Log.v(LOGTAG, "MediaPlayer Buffering: " + bufferedPercent + "%"); 
} 

public boolean canPause() { 
    return true; 
} 

public boolean canSeekBackward() { 
    return true; 
} 

public boolean canSeekForward() { 
    return true; 
} 

public int getBufferPercentage() { 
    return 0; 
} 

public int getCurrentPosition() { 
    return mediaPlayer.getCurrentPosition(); 
} 

public int getDuration() { 
    return mediaPlayer.getDuration(); 
} 

public boolean isPlaying() { 
    return mediaPlayer.isPlaying(); 
} 

public void pause() { 
    if (mediaPlayer.isPlaying()) { 
     mediaPlayer.pause(); 
    } 
} 

public void seekTo(int pos) { 
    mediaPlayer.seekTo(pos); 
} 

public void start() { 
    mediaPlayer.start(); 
} 

@Override 
public boolean onTouchEvent(MotionEvent ev) { 
    /*if (controller.isShowing()) { 
     controller.hide(); 
    } else {*/ 
     controller.show(); 
    //} 
    return false; 
}

}

來源

2012-11-05 12:55:42

這是答案還是延伸問題？ – Pallavi

Android的媒體播放器超過3G連接不工作，但工作在WiFi

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