Android - Playing mp3 from byte[]

Question

I have my mp3 in byte[] (downloaded from service) and I would like to play it on my device similar to how you play files:

 MediaPlayer mp = new MediaPlayer();
 mp.setDataSource(PATH_TO_FILE);
 mp.prepare();
 mp.start();

But I can't seem to find a way to do it... I wouldn't mind saving file to phone and than playing it, I am just hoping there is better way to do it.

Answer 1

Not sure about bytearrays/bytestreams, but if you have a URL from the service, you can try setting the data source to a network URI by calling

setDataSource(Context context, Uri uri)

See the API docs.

Answer 2

Hey catch out this. http://stackoverflow.com/questions/1965784/streaming-audio-from-a-url-in-android-using-mediaplayer

Answer 3

wrong code:

 MediaPlayer mp = new MediaPlayer();
 mp.setDataSource(PATH_TO_FILE);
 mp.prepare();
 mp.start();

CORRECT CODE:

 MediaPlayer mp = new MediaPlayer();
 mp.setDataSource(PATH_TO_FILE);
 mp.setOnpreparedListener(this);
 mp.prepare();

//Implement OnPreparedListener 
OnPrepared() {
    mp.start();
 }

see API Demos ..

Answer 4

OK, thanks to all of you but I needed to play mp3 from byte[] as I get that from .NET webservice (don't wish to store dynamically generated mp3s on server).

In the end - there are number of "gotchas" to play simple mp3... here is code for anyone who needs it:

private void playMp3(byte[] mp3SoundByteArray) {
    try {
        // create temp file that will hold byte array
        File tempMp3 = File.createTempFile("kurchina", "mp3", getCacheDir());
        tempMp3.deleteOnExit();
        FileOutputStream fos = new FileOutputStream(tempMp3);
        fos.write(mp3SoundByteArray);
        fos.close();

        // Tried reusing instance of media player
        // but that resulted in system crashes...  
        MediaPlayer mediaPlayer = new MediaPlayer();

        // Tried passing path directly, but kept getting 
        // "Prepare failed.: status=0x1"
        // so using file descriptor instead
        FileInputStream fis = new FileInputStream(tempMp3);
        mediaPlayer.setDataSource(fis.getFD());

        mediaPlayer.prepare();
        mediaPlayer.start();
    } catch (IOException ex) {
        String s = ex.toString();
        ex.printStackTrace();
    }
}