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record video from rtsp on TextureView

Hi I have the following code that simply displays an RTSP on a TextureView to then make a screenShot of the stream and save it as an image,
playButton.setOnClickListener(this);
playButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
mMediaPlayer = new MediaPlayer();
try {
mMediaPlayer.setDataSource(String.valueOf(Uri.parse("rtsp://........./")));
} catch (IOException e) {
e.printStackTrace();
}
mMediaPlayer.setSurface(surface);
mMediaPlayer.setLooping(true);
mMediaPlayer.prepareAsync();
mMediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mediaPlayer) {
mediaPlayer.start();
playButton.setVisibility(View.INVISIBLE);
btnCapture.setVisibility(View.VISIBLE);
recordVideo.setVisibility(View.VISIBLE);
}
});
}
});
recordVideo.setOnClickListener(this);
recordVideo.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
}
});
how can I record a portion of this video and save it as mp4? I made the start and stop buttons for recording the video Can I save the video between the start and stop?

Android MediaPlayer OnCompletion NullPointerException

This is my first question. It is giving NullPointerException in media.release() line. Exact output is NullPointerException (#ProgressDetailRecyclerViewAdapter$5:onCompletion:308) {main}
public void play(String fileURL) {
try {
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setDataSource(fileURL);
mediaPlayer.prepare();
mediaPlayer.start();
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
mediaPlayer.release(); //line 308
mediaPlayer = null;
}
});
} catch (Exception e) {
e.printStackTrace();
}
}

#Override
public void onCompletion(MediaPlayer **mp**) {
**mediaPlayer**.release(); //line 308
mediaPlayer = null;
}
use the right object mp instead of mediaPlayer inside this method

Try this
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
mp.release(); //line 308
mp= null;
}
});

The variable that gets passed to your onCompletion method is named mp, not mediaPlayer. It's possible your mediaPlayer variable has been nulled since it was initialized, causing the error. Change the code to:
#Override
public void onCompletion(MediaPlayer mp) {
mp.release(); //line 308
mp = null;
}

How to play the next song in an array?

For an assignment I am trying to play songs from an array using media player. The first song in the array plays fine, but the next, and last track buttons are where my issue is. Could anyone suggest a way of playing the next/last song from my music array?
None relevant code not included.
// Arrays of sound files
private int[] audioFileArrayChill = {R.raw.vanilla_summer, R.raw.lifeline, R.raw.remember_the_mountain_bed};`
// Listen for the end of the track
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
for (int x = 1; x <= audioArray.length; x++) {
currentIndex++;
// Play next song in array
mp.selectTrack(audioArray[x]);
mp.start();
}
}
});
// Assigning onClickListener to last track button
lastTrack.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mediaPlayer.reset();
mediaPlayer.selectTrack(audioArray[currentIndex - 1]);
try {
mediaPlayer.prepare();
mediaPlayer.start();
} catch (IOException e) {
Log.e("Error", "ERROR");
}
}
});
// Assigning onClickListener to next track button
nextTrack.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mediaPlayer.reset();
mediaPlayer.selectTrack(audioArray[currentIndex + 1]);
try {
mediaPlayer.prepare();
mediaPlayer.start();
} catch (IOException e) {
Log.e("Error", "ERROR");
}
}
});

use below code for next button click
nextTrack.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mp.stop();
mp.reset();
mp.setDataSource(audioArray[currentIndex + 1]);
mp.prepare();
mp.start();
}

Change button background from service

i'm following a step to play audio file from here link
and it works all right, the service in the link above is to play and stop audio.
The problem is i want to change a button background when the audio stop, so far i only got this in the activity that call the service:
btnPlay.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (isPlaying == false) {
isPlaying = true;
btnPlay.setBackgroundResource(R.drawable.stop_play_button);
playAudio();
} else {
isPlaying = false;
btnPlay.setBackgroundResource(R.drawable.play_button);
stopAudio();
}
}
});

You can declare on completetion listener on your player:
player.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
isPlaying = false;
btnPlay.setBackgroundResource(R.drawable.play_button);
stopAudio();
}
});

Android Mediaplayer Error (-19, 0)

I try to replay a sound when I click on a button. But I get the Error (-19, 0) (what ever this means^^)
My code:
final Button xxx = (Button)findViewById(R.id.xxx);
xxx.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
MediaPlayer mp = MediaPlayer.create(getApplicationContext(), R.raw.plop);
mp.start();
}
});
What is my mistake?

I was getting the same problem, I solved it by adding the following code:
mp1 = MediaPlayer.create(sound.this, R.raw.pan1);
mp1.start();
mp1.setOnCompletionListener(new OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
mp.release();
};
});

You need to release the previous media player before starting the new one.
Declare MediaPlayer as a instance variable and then:
mp = null;
final Button xxx = (Button)findViewById(R.id.xxx);
xxx.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (mp != null) {
mp.stop();
mp.release();
}
mp = MediaPlayer.create(getApplicationContext(), R.raw.plop);
mp.start();
}
});
Or in your case, since you always play the same sound you don't need to release the player and create a new one, simply reuse the old one.
final MediaPlayer mp = MediaPlayer.create(getApplicationContext(), R.raw.plop);
mp.prepare(); // Blocking method. Consider to use prepareAsync
final Button xxx = (Button)findViewById(R.id.xxx);
xxx.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
mp.stop();
mp.start();
}
});

I sloved this problem by this code:
public static void playSound() {
mMediaPlayer = new MediaPlayer();
try {
AssetFileDescriptor afd = context.getAssets().openFd("type.mp3");
mMediaPlayer.setDataSource(afd.getFileDescriptor(),
afd.getStartOffset(), afd.getLength());
mMediaPlayer.prepare();
mMediaPlayer.start();
mMediaPlayer.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer arg0) {
// TODO Auto-generated method stub
arg0.release();
}
});
} catch (IllegalArgumentException | IllegalStateException | IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
i hope to help you.