I am working with an streaming android application that works over Ethernet
Lan.
private MediaPlayer mMediaPlayer;
public string ipaddr=null;
public void surfaceCreated(SurfaceHolder holder)
{
ipaddr=getInterfaces();
if(ipaddr!=null)
{
try{
mMediaPlayer = new MediaPlayer();
Uri video = Uri.parse("http://172.24.... :80/video.3gp");
// *Note : when i enter this URL in browser it starts playing
in mediaplayer*
mMediaPlayer.setDataSource(mContext, video);
mMediaPlayer.setDisplay(holder);
mMediaPlayer.prepare();
mMediaPlayer.setOnBufferingUpdateListener(this);
mMediaPlayer.setOnCompletionListener(this);
mMediaPlayer.setOnPreparedListener(this);
mMediaPlayer.setOnVideoSizeChangedListener(this);
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setLooping(true);
}
catch (Exception e)
{
Log.e(TAG, "error: " + e.getMessage(), e);
}
}
else
{
try{
mMediaPlayer = new MediaPlayer();
Uri video =
Uri.parse("android.resource://com.myproj.android.MyVideoApp/raw/v10");
mMediaPlayer.setDataSource(mContext, video);
mMediaPlayer.setDisplay(holder);
mMediaPlayer.prepare();
mMediaPlayer.setOnBufferingUpdateListener(this);
mMediaPlayer.setOnCompletionListener(this);
mMediaPlayer.setOnPreparedListener(this);
mMediaPlayer.setOnVideoSizeChangedListener(this);
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setLooping(true);
}
catch (Exception e)
{
Log.e(TAG, "error: " + e.getMessage(), e);
}
}
}
public static String getInterfaces()
{
try
{
Enumeration<NetworkInterface> e = NetworkInterface
.getNetworkInterfaces();
while (e.hasMoreElements())
{
NetworkInterface ni = e.nextElement();
Enumeration<InetAddress> e2 = ni.getInetAddresses();
if (ni.getName().startsWith("eth"))
{
while (e2.hasMoreElements())
{
InetAddress ip = e2.nextElement();
if (ip.toString().equalsIgnoreCase("/127.0.0.1"))
{
continue;
}
return ip.toString();
}
}
}
}
catch (Exception e)
{
e.printStackTrace();
return null;
}
return null;
}
Neither of the video is playing. I am getting
"java.lang.NullPointerException". Whats wrong with the above code?
Any help would be appreciated.
Log File:
E/MyVideoAppView( 1829): error: null
E/MyVideoAppView( 1829): java.lang.NullPointerException
E/MyVideoAppView( 1829): \0x09at
android.media.MediaPlayer.setDataSource(MediaPlayer.java:715)
E/MyVideoAppView( 1829): \0x09at
android.media.MediaPlayer.setDataSource(MediaPlayer.java:692)
E/MyVideoAppView( 1829): \0x09at
com.johnwei.android.MyVideoApp.MyVideoAppView.surfaceCreated(MyVideoAppView.java:66)
E/MyVideoAppView( 1829): \0x09at
android.view.SurfaceView.updateWindow(SurfaceView.java:543)
E/MyVideoAppView( 1829): \0x09at
android.view.SurfaceView.dispatchDraw(SurfaceView.java:348)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/MyVideoAppView( 1829): \0x09at android.view.View.draw(View.java:6883)
E/MyVideoAppView( 1829): \0x09at
android.widget.FrameLayout.draw(FrameLayout.java:357)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.drawChild(ViewGroup.java:1646)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/MyVideoAppView( 1829): \0x09at android.view.View.draw(View.java:6883)
E/MyVideoAppView( 1829): \0x09at
android.widget.FrameLayout.draw(FrameLayout.java:357)
E/MyVideoAppView( 1829): \0x09at
com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1862)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewRoot.draw(ViewRoot.java:1522)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewRoot.performTraversals(ViewRoot.java:1258)
E/MyVideoAppView( 1829): \0x09at
android.view.ViewRoot.handleMessage(ViewRoot.java:1859)
E/MyVideoAppView( 1829): \0x09at
android.os.Handler.dispatchMessage(Handler.java:99)
E/MyVideoAppView( 1829): \0x09at android.os.Looper.loop(Looper.java:123)
E/MyVideoAppView( 1829): \0x09at
android.app.ActivityThread.main(ActivityThread.java:3647)
E/MyVideoAppView( 1829): \0x09at
java.lang.reflect.Method.invokeNative(Native Method)
E/MyVideoAppView( 1829): \0x09at
java.lang.reflect.Method.invoke(Method.java:507)
E/MyVideoAppView( 1829): \0x09at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
E/MyVideoAppView( 1829): \0x09at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
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