Play a sound from res/raw

Play a sound from res/raw - android

I m making an app which is supposed to play a few sounds with the mediaPlayer.
This is the code i use :
String[] name = {"sonar_slow","sonar_medium","sonar_fast"};
String link = "/res/raw/" + name[state-1] + ".mp3";
try {
player.setDataSource(link);
player.prepare();
player.start();
} catch(Exception e) {
e.printStackTrace();
}
I also tried this :
if(state==1){
player.create(this, R.raw.sonar_slow);
}else if(state==2){
player.create(this, R.raw.sonar_medium);
}else if(state==3){
player.create(this, R.raw.sonar_fast);
}
player.start();
But none of the above is working. My app is not crashing but the sound is not playing.
Any ideas ?

There are two problems.
Problem 1
You cannot reference resources inside your projects /res/raw directory in this fashion. The file "/res/raw/sonar_slow.mp3" in your project directory is not stored in "/res/raw/sonar_slow.mp3" in your apk. Instead of the following:
MediaPlayer mp = MediaPlayer.create(this);
mp.setSource("sonar_slow");
You need to use
MediaPlayer mp = MediaPlayer.create(this, R.raw.sonar_slow);
Problem 2
The following is wrong: it calls a static method that does not modify the player.
player.create(this, R.raw.sonar_slow);
You should instead call
player = MediaPlayer.create(this, R.raw.sonar_slow);
Full solution
Below is a reusable AudioPlayer class that encapsulates MediaPlayer. This is slightly modified from "Android Programming: The Big Nerd Ranch Guide". It makes sure to remember to clean up resources
package com.example.hellomoon;
import android.content.Context;
import android.media.MediaPlayer;
public class AudioPlayer {
private MediaPlayer mMediaPlayer;
public void stop() {
if (mMediaPlayer != null) {
mMediaPlayer.release();
mMediaPlayer = null;
}
}
public void play(Context c, int rid) {
stop();
mMediaPlayer = MediaPlayer.create(c, rid);
mMediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mediaPlayer) {
stop();
}
});
mMediaPlayer.start();
}
}

How to play a file with MediaPlayer:
MediaPlayer mp = MediaPlayer.create(this, R.raw.mysound); // sound is inside res/raw/mysound
mp.start();
This is a simple example of how to play a sound with the Android MediaPlayer.
You have two buttons hat each play a different sound. The selecting of the sound and actually playing it is done in the manageSound() method. The sounds "hello", "goodbye" and "what" are in the res/raw directory:
MediaPlayer mp = null;
String hello = "Hello!";
String goodbye = "GoodBye!";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final Button buttonHello = (Button) findViewById(R.id.idHello);
buttonHello.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
managerOfSound(hello);
} // END onClick()
}); // END buttonHello
final Button buttonGoodBye = (Button) findViewById(R.id.idGoodBye);
buttonGoodBye.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
managerOfSound(goodbye);
} // END onClick()
}); // END buttonGoodBye
} // END onCreate()
protected void manageSound(String theText) {
if (mp != null) {
mp.reset();
mp.release();
}
if (theText.equals(hello))
mp = MediaPlayer.create(this, R.raw.hello);
else if (theText.equals(goodbye))
mp = MediaPlayer.create(this, R.raw.goodbye);
else
mp = MediaPlayer.create(this, R.raw.what);
mp.start();
}
Taken from here: http://www.badprog.com/android-mediaplayer-example-of-playing-sounds
Furthermore, I would strongly recommend using SoundPool instead of MediaPlayer, for better Performance and usability.
http://developer.android.com/reference/android/media/SoundPool.html
Please also check if your sound is muted - I know this sounds stupid, but it happens to the best of us ;)

You need to do it like this :
try{
mp.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mp.start();

Make sure your only playing when the file has finished preparing.

Related

MediaPlayer doesn't play my MP3 - What is going wrong?

MediaPlayer doesn't play my MP3
I am using the following code to play a (random) MP3-song from the internet, but unfortunately is isn't working. I don't hear anything, but I don't know what I am doing wrong.
public void playAudio() throws Exception
{
MediaPlayer mediaPlayer;
mediaPlayer = new MediaPlayer();
// mediaPlayer.release();
mediaPlayer.setDataSource("http://yvolinssen.nl/recit.mp3");
mediaPlayer.prepare();
mediaPlayer.start();
}
I also tried to put the
MediaPlayer mediaPlayer;
In the constructer, but that isn't working either. The following function calls my PlayAudio function:
this.playButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
UserPanel.this.activity.playAudio();
} catch (Exception e) {
e.printStackTrace();
}
}
});

How to correctly change MediaPlayer audio stream type?

I have a simple mp service to play, pause, resume audio. All works fine.
But, last night I have decided to add a feature for user to route audio to ear-piece or speaker and have been battling with mp.setAudioStreamType().
Problem is that I can't change it while service connected and mp created. I don't want to terminate service and/or unbind and rebind as it would require a lot of refactoring
How do I supposed to change AudioStreamType while playing an audio?
Here is my code:
Player service:
public class PService extends Service {
private MediaPlayer mp = new MediaPlayer();
public static final String PLAYING_FINISHED_MSG = "1";
#Override
public void onCreate() {
super.onCreate();
}
#Override
public void onDestroy() {
mp.stop();
mp.release();
}
private void playSong(String file) {
try {
mp.reset();
mp.setDataSource(file);
mp.setAudioStreamType(MYAPP.getAudioStreamType());
mp.prepare();
mp.start();
mp.setOnCompletionListener(new OnCompletionListener() {
public void onCompletion(MediaPlayer arg0) {
Intent i = new Intent();
i.setAction(MDService.PLAYING_FINISHED_MSG);
sendBroadcast(i);
}
});
toggle route button onclick
currentlyPlayingFile = file;
currentlyPlayingPhone = phone;
lastDurationBeforePause = mpInterface.getCurrentPosition();
if(MYAPP.getAudioStreamType() == AudioManager.STREAM_MUSIC)
{
MYAPP.setAudioStreamType(AudioManager.STREAM_VOICE_CALL);
recording_player_route_button.setImageResource(R.drawable.route_off);
}
else{
MYAPP.setAudioStreamType(AudioManager.STREAM_MUSIC);
recording_player_route_button.setImageResource(R.drawable.route_on);
}
try {
mpInterface.playFile(file);
player_seekbar.setProgress(0);
player_seekbar.setMax(mpInterface.getDuration());
//seekto last millisecond after switching from/to sepaker
if(seekTo>0)
{
mpInterface.seekTo(seekTo);
}
isPauseButtonPressed = false;
handleSeekBarUpdate.postDelayed(handleSeekBarUpdateJob, 1);
} catch (RemoteException e) {
e.printStackTrace();
}

The MODIFY_AUDIO_SETTINGS permission is needed in the Manifest for this to work.
AudioManager am=(AudioManager)getSystemService(Context.AUDIO_SERVICE);
am.setMode(AudioManager.MODE_NORMAL);
MediaPlayer mp=new MediaPlayer();
Uri ringtoneUri=RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
try
{
mp.setDataSource(getApplicationContext(), ringtoneUri);
mp.setAudioStreamType(AudioManager.STREAM_NOTIFICATION);
mp.prepare();
mp.start();
}
catch(Exception e)
{
//exception caught in the end zone
}

Error in handling audio file in Android while using media player class

Here is my code:
private void scanningSoundStart() {
scanningMediaPlayer = MediaPlayer.create(this, R.raw.scanning);
scanningMediaPlayer.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
}
});
scanningMediaPlayer.setOnVideoSizeChangedListener(new OnVideoSizeChangedListener() {
#Override
public void onVideoSizeChanged(MediaPlayer mp,int width, int height) {
}
});
scanningMediaPlayer.start();
}
private void scanningSoundStop() {
if (scanningMediaPlayer.isPlaying()) {
scanningMediaPlayer.stop();
//scanningMediaPlayer.release();
}
}
I'm trying to play an mp3 file from my raw folder.
The first function which is used for playing the audio file.
And the second function is used for stopping the playing audio.
I get the following error when I repeatedly playing or stopping the audio.
Error : MediaPlayer(10576): error (-19, 0)
I know that my entire approach of handling mediaplayer is wrong.
Please help me to correct this error.
And if possible suggest me how to handle mediaplayer class efficiently.

Try the following code to play audio file.
public void audioPlayer(String path, String fileName){
//set up MediaPlayer
MediaPlayer mp = new MediaPlayer();
try {
mp.setDataSource(path+"/"+fileName);
mp.prepare();
mp.start();
} catch (Exception e) {
e.printStackTrace();
}
}

How can I play a series of short mp3 files with no gap between them in Android?

I have a lot of short .mp3 files that I want to play one after the other.. I tried to use onCompletion event and start the next mp3, though this causes a brief gap between the 2 mp3s..
Here is the code:
void StartSound() {
mediaplayer = MediaPlayer.create(this, Uri.parse(FILE_PATH + counter + ".mp3"));
try {
mediaplayer.start();
mediaplayer.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
counter++;
try {
mp.reset();
mp.setDataSource(FILE_PATH + counter + ".mp3");
mp.prepare();
} catch (Exception e) {
e.printStackTrace();
}
mp.start();
}
});
} catch (Exception e) {
}
}
Is there a work around to this issue?

There's a workaround, but whether it's worth the trouble is up to you.
The basic idea is to decode the MP3 files to a PCM buffer, stitch them together in a byte array, and play with an AudioTrack. Seamless MP3 playback doesn't really exist with MediaPlayer. This could be a pain in the ass, though, and memory problems are likely if you're talking about full songs. For short clips, it may work, but SoundPool might be the better option.
If you're just trying to narrow the gap a bit, you can try preparing the following MediaPlayer objects before onCompletionListener. Instead of waiting to be done, prepare the next two so you can start playback faster. Then when you hit onCompletion, you can just flip which object you're using and start(). Crude double buffering, in a way.

Try this:
public class MainActivity extends Activity
{
private int[] tracks = {R.raw.explosion,R.raw.pianothingy_one,R.raw.car_horn_x};
int mCompleted = 0;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
MediaPlayer mp = MediaPlayer.create(this, tracks[0]);
mp.setOnCompletionListener(new OnCompletionListener()
{
#Override
public void onCompletion(MediaPlayer mp)
{
mCompleted++;
mp.reset();
if (mCompleted < tracks.length)
{
try
{
AssetFileDescriptor afd = getResources().openRawResourceFd(tracks[mCompleted]);
if (afd != null)
{
mp.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
afd.close();
mp.prepare();
mp.start();
}
}
catch (Exception ex)
{
ex.printStackTrace();
}
}
else if (mCompleted>=tracks.length)
{
mCompleted =0;
try
{
AssetFileDescriptor afd = getResources().openRawResourceFd(tracks[mCompleted]);
if (afd != null)
{
mp.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
afd.close();
mp.prepare();
mp.start();
}
}
catch (Exception ex)
{
ex.printStackTrace();
}
}
else
{
mCompleted=0;
mp.release();
mp = null;
}
}
});
mp.start();

Media Player called in state 0, error (-38,0)

I am currently trying to design a simple app that streams an internet radio station. I have the URL for the station and am setting up the Media Player like
MediaPlayer mediaPlayer = new MediaPlayer();
try {
mediaPlayer.setDataSource(URL);
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
mediaPlayer.prepare();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
mediaPlayer.start();
The program isn't crashing when emulated, but nothing is playing and I am get the following error:
start called in state 0
and right below it is
Error (-38,0)
Does anyone know what this means?
I've read a little about these state errors, but couldn't find anything that applies to my project.

You need to call mediaPlayer.start() in the onPrepared method by using a listener.
You are getting this error because you are calling mediaPlayer.start() before it has reached the prepared state.
Here is how you can do it :
mp.setDataSource(url);
mp.setOnPreparedListener(this);
mp.prepareAsync();
public void onPrepared(MediaPlayer player) {
player.start();
}

It seems like Error -38 means a state-exception (as the error-message indicates). For example if you call start(), before the song was ready, or when you call pause(), even if the song isn't playing at all.
To fix this issue check the state of the mediaPlayer before calling the methods. For example:
if(mediaPlayer.isPlaying()) {
mediaPlayer.pause();
}
Additionally, the MediaPlayer is sending event-messages. Even if you do not need the prepared-event (although it would be a good idea to not start the playback before this event was fired) you must set a callback-listener. This also holds true for the OnErrorListener, OnCompletionListener, OnPreparedListener and OnSeekCompletedListener (if you call the seek method).
Listeners can be attached simply by
mediaPlayer.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
// Do something. For example: playButton.setEnabled(true);
}
});

I got this error when I was trying to get the current position (MediaPlayer.getCurrentPosition()) of media player when it wasn't in the prepared stated. I got around this by Keeping track of its state and only calling the getCurrentPosition() method after onPreparedListener is called.

This is my code,tested and working fine:
package com.example.com.mak.mediaplayer;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.app.Activity;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final MediaPlayer mpp = MediaPlayer.create(this, R.raw.red); //mp3 file in res/raw folder
Button btnplay = (Button) findViewById(R.id.btnplay); //Play
btnplay.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View vone) {
mpp.start();
}
});
Button btnpause = (Button) findViewById(R.id.btnpause); //Pause
btnpause.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View vtwo) {
if (mpp.isPlaying()) {
mpp.pause();
mpp.seekTo(0);
}
}
});
}
}

I encountered the same issue few days ago. My audio MediaPlayer works fine on devices with high processing power, but for slow devices, the media player just did not play some time and from LogCat it had many complain about called in wrong state. So I resolved it by calling putting the call to start(), pause(),... in onPrepared() method of OnPreparedListener() as below:
mediaPlayer.prepare();
mediaPlayer.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
........
mediaPlayer.start();
....
songControlBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (mediaPlayer.isPlaying()) {
mediaPlayer.pause();
} else {
mediaPlayer.start();
}
}
});
mediaPlayer.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
............
}
});
}
});
Also try to release any media player that you do not need any more. For example, if you do not want to play the audio or video on background then you should call mediaPlayer.release() in onPause().

i tested below code. working fine
public class test extends Activity implements OnErrorListener, OnPreparedListener {
private MediaPlayer player;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
player = new MediaPlayer();
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
try {
player.setDataSource("http://www.hubharp.com/web_sound/BachGavotte.mp3");
player.setOnErrorListener(this);
player.setOnPreparedListener(this);
player.prepareAsync();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
#Override
public void onDestroy() {
super.onDestroy();
player.release();
player = null;
}
#Override
public void onPrepared(MediaPlayer play) {
play.start();
}
#Override
public boolean onError(MediaPlayer arg0, int arg1, int arg2) {
return false;
}
}

Some times file are encoded in a way that Android can't decode. Even some mp4 files can not be played. Please try a different file format (.3gp are played most of the time) and see..

You get this message in the logs, because you do something that is not allowed in the current state of your MediaPlayer instance.
Therefore you should always register an error handler to catch those things (as #tidbeck suggested).
At first, I advice you to take a look at the documentation for the MediaPlayer class and get an understanding of what that with states means. See: http://developer.android.com/reference/android/media/MediaPlayer.html#StateDiagram
Your mistake here could well be one of the common ones, the others wrote here, but in general, I would take a look at the documentation of what methods are valid to call in what state: http://developer.android.com/reference/android/media/MediaPlayer.html#Valid_and_Invalid_States
In my example it was the method mediaPlayer.CurrentPosition, that I called while the media player was in a state, where it was not allowed to call this property.

above the picture,you can get the right way.

I solved both the errors (-19,0) and (-38,0) , by creating a new object of MediaPlayer every time before playing and releasing it after that.
Before :
void play(int resourceID) {
if (getActivity() != null) {
//Using the same object - Problem persists
player = MediaPlayer.create(getActivity(), resourceID);
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
player.release();
}
});
player.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
mp.start();
}
});
}
}
After:
void play(int resourceID) {
if (getActivity() != null) {
//Problem Solved
//Creating new MediaPlayer object every time and releasing it after completion
final MediaPlayer player = MediaPlayer.create(getActivity(), resourceID);
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
player.release();
}
});
player.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
mp.start();
}
});
}
}

if(length>0)
{
mediaPlayer = new MediaPlayer();
Log.d("length",""+length);
try {
mediaPlayer.setDataSource(getApplication(),Uri.parse(uri));
} catch(IOException e) {
e.printStackTrace();
}
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mediaPlayer) {
mediaPlayer.seekTo(length);
mediaPlayer.start();
}
});
mediaPlayer.prepareAsync();

It was every much frustrated. So, I got solution which works for me.
try {
if (mediaPlayer != null) {
mediaPlayer.release();
mediaPlayer = null;
}
mediaPlayer = new MediaPlayer();
mediaPlayer.setDataSource(file.getAbsolutePath());
mediaPlayer.setAudioStreamType(AudioManager.STREAM_NOTIFICATION);
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mediaPlayer) {
mediaPlayer.start();
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mediaPlayer) {
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
});
}
});
mediaPlayer.prepare();
} catch (Exception e) {
e.printStackTrace();
}

For me this worked
mp.seekTo(0);
mp.start();

I also got this error i tried with onPreparedListener but still got this error. Finally i got the solution that error is my fault because i forgot the internet permission in Android Manifest xml. :)
<uses-permission android:name="android.permission.INTERNET" />
I used sample coding for mediaplayer. I used in StreamService.java
onCreate method
String url = "http://s17.myradiostream.com:11474/";
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setDataSource(url);
mediaPlayer.prepare();

mp = new MediaPlayer();
AssetFileDescriptor afd = mContext.getAssets().openFd(fileName);
mp.reset();
mp.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
mp.prepare();
mp.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
mp.start();
}
});
mp.prepareAsync();

I have change setAudioStreamType to setAudioAttributes;
mediaPlayer.setAudioAttributes(AudioAttributes.Builder()
.setFlags(AudioAttributes.FLAG_AUDIBILITY_ENFORCED)
.setLegacyStreamType(AudioManager.STREAM_ALARM)
.setUsage(AudioAttributes.USAGE_ALARM)
.setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
.build());

I am new in android programming and i had same error as this one. so i simply redefined the mp.createmediaPlayer = MediaPlayer.create(getApplicationContext(), Settings.System.DEFAULT_RINGTONE_URI). It may not the true way to do it but it worked fined for me:
try {
mp = MediaPlayer.create(getApplicationContext(), Settings.System.DEFAULT_RINGTONE_URI);
} catch (Exception e) {
e.printStackTrace();
}
mp.start();

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Play a sound from res/raw - android

You need to do it like this : try{ mp.prepare(); } catch (IllegalStateException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } mp.start();

Make sure your only playing when the file has finished preparing.

Related

MediaPlayer doesn't play my MP3 - What is going wrong?

How to correctly change MediaPlayer audio stream type?

Error in handling audio file in Android while using media player class

How can I play a series of short mp3 files with no gap between them in Android?

Media Player called in state 0, error (-38,0)

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