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POchanging a track media player android
 

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  1. POchanging a track media player android
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    <p>I am currently playing a song using MediaPlayer which plays fine. On user selecting a different song, I'm trying to play that out. But, I get error(1,-2147483648) and Error(1, -2147483648) by the MediaPlayer. These logs are printed after the call to prepareASync(); Note: The path of the file looks correct. However, how do I check for a valid filepath?</p> <p>The sequence is as follows: <code></p> <pre><code> mPlayer.reset(); Log.d(TAG,"after reset"); mPlayer.setDataSource(mTrackToBePlayed); Log.d(TAG,"after setDataSource"); // mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mPlayer.setOnPreparedListener(preparedListener); Log.d(TAG,"after setOnPreparedListener"); mPlayer.setOnErrorListener(errorListener); Log.d(TAG,"after setting errorListener"); mPlayer.prepareAsync(); Log.d(TAG,"after prepareAsync"); </code></pre> <p></code></p> <p>The code for reference is this: in onResume() of my main activity(on returning to which, I want to start playback) I am making the calls MusicUtils.createPlayer(); and MusicUtils.playTrack(mCurrentTrack);</p> <p><code></p> <pre><code>public static void playTrack(String track) { mTrackToBePlayed = track; try { mPlayer.reset(); Log.d(TAG,"after reset"); mPlayer.setDataSource(mTrackToBePlayed); Log.d(TAG,"after setDataSource"); // mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mPlayer.setOnPreparedListener(preparedListener); Log.d(TAG,"after setOnPreparedListener"); mPlayer.setOnErrorListener(errorListener); Log.d(TAG,"after setting errorListener"); mPlayer.prepareAsync(); Log.d(TAG,"after prepareAsync"); } catch (IOException e) { } catch(IllegalArgumentException e) { } preparedListener = new MediaPlayer.OnPreparedListener() { @Override public void onPrepared(MediaPlayer mp) { // TODO Auto-generated method stub mp.start(); Log.d(TAG,"after start"); } }; errorListener = new MediaPlayer.OnErrorListener() { public boolean onError(MediaPlayer mp, int what, int extra) { switch (what) { case MediaPlayer.MEDIA_ERROR_SERVER_DIED: Log.d(TAG,"in onError"); // mIsInitialized = false; mp.release(); // Creating a new MediaPlayer and settings its wakemode does not // require the media service, so it's OK to do this now, while the // service is still being restarted try{ mp = new MediaPlayer(); mp.reset(); mp.setDataSource(mTrackToBePlayed); // mp.setAudioStreamType(AudioManager.STREAM_MUSIC); mp.prepareAsync(); mPlayer = mp; // mPlayer.start(); } catch (Exception e) { } //MediaPlayer.create(mContext, mTrackToBePlayed); // mPlayer.setWakeMode(MediaPlaybackService.this, PowerManager.PARTIAL_WAKE_LOCK); return true; default: Log.d("MusicPlayer", "Error: " + what + "," + extra); break; } return false; } }; //mPlayer.start(); } public static boolean isPlaying() { return mPlayer.isPlaying(); } public static void pauseTrack() { mPlayer.pause(); } public static void startTrack() { mPlayer.start(); } public static void stopTrack() { mPlayer.stop(); } public static void releasePlayer() { mPlayer.release(); } </code></pre> <p></code></p> <p><code></p> <p>This function is present in MusicUtils and is used to obtain the first track that the cursor returns</p> <pre><code>public static void retrieveDefaultPath() { String[] STAR = { "*" }; Uri allsongsuri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; String selection = MediaStore.Audio.Media.IS_MUSIC + " != 0"; mCursor = mContentResolver.query(allsongsuri, STAR, selection, null, null); if (mCursor != null) { if (mCursor.moveToFirst()) { //do { //mSongName = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DISPLAY_NAME)); //mSongList.add(mSongName);//populate the list of display names int song_id = mCursor.getInt(mCursor.getColumnIndex(MediaStore.Audio.Media._ID)); //mMusicIDs.put(song_id, counter++);//fill the HashMap with IDs corresponding to the positions String fullpath = mCursor.getString(mCursor.getColumnIndex(MediaStore.Audio.Media.DATA)); String album_name = mCursor.getString(mCursor.getColumnIndex(MediaStore.Audio.Media.ALBUM)); int album_id = mCursor.getInt(mCursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID)); String artist_name = mCursor.getString(mCursor.getColumnIndex(MediaStore.Audio.Media.ARTIST)); int artist_id = mCursor.getInt(mCursor.getColumnIndex(MediaStore.Audio.Media.ARTIST_ID)); //} while (cursor.moveToNext()); mDefaultPath = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI + "/" + song_id; Slideshow.mCurrentTrack = mDefaultPath; } if (mCursor != null) { mCursor.close(); } } } </code></pre> <p></code> <code> The following function is used to obtain all the tracks on the device to display using the ListActivity.</p> <pre><code>public void getAllSongsFromSDCARD() { String[] STAR = { "*" }; Uri allsongsuri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; String selection = MediaStore.Audio.Media.IS_MUSIC + " != 0"; cursor = managedQuery(allsongsuri, STAR, selection, null, null); if (cursor != null) { if (cursor.moveToFirst()) { do { mSongName = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DISPLAY_NAME)); mSongList.add(mSongName);//populate the list of display names int song_id = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media._ID)); Log.d("Music List","ID: "+song_id+" counter:"+counter); mMusicIDs.put(counter++, song_id);//fill the HashMap with IDs corresponding to the positions String fullpath = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA)); String album_name = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM)); int album_id = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID)); String artist_name = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST)); int artist_id = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST_ID)); } while (cursor.moveToNext()); } cursor.close(); } } </code></pre> <p>I use the ID that the user selects and obtain the filepath in the following way:</p> <pre><code> music_id = (Integer)mMusicIDs.get(position); mSelectedPath = mSelectedPath + "/" + music_id; </code></pre> <p></code></p> <p>Logcat:</p> <p>08-31 18:07:36.348: D/dalvikvm(23090): GC_EXTERNAL_ALLOC freed 2K, 46% free 3088K/5703K, external 1461K/1538K, paused 32ms</p> <p>08-31 18:07:38.860: D/tag(23090): inside oncreate</p> <p>08-31 18:07:38.860: D/ImageSwitcher(23090): cache size:1</p> <p>08-31 18:07:39.030: D/ImageSwitcher(23090): TOTAL NUM IMAGES: 838</p> <p>08-31 18:07:39.150: I/AudioSystem(23090): getting audio flinger</p> <p>08-31 18:07:39.150: I/AudioSystem(23090): returning new audio session id</p> <p>08-31 18:07:39.150: D/IAudioFlinger(23090): newAudioSessionId In</p> <p>08-31 18:07:39.150: D/IAudioFlinger(23090): newAudioSessionId Out, id = 175</p> <p>08-31 18:07:39.150: D/MediaPlayer(23090): reset() in</p> <p>08-31 18:07:39.150: D/MediaPlayer(23090): reset() out</p> <p>08-31 18:07:39.150: D/MusicUtils(23090): after reset</p> <p>08-31 18:07:39.160: D/MusicUtils(23090): after setDataSource</p> <p>08-31 18:07:39.160: D/MusicUtils(23090): after setOnPreparedListener</p> <p>08-31 18:07:39.160: D/MusicUtils(23090): after setting errorListener</p> <p>08-31 18:07:39.170: D/MusicUtils(23090): after prepareAsync</p> <p>08-31 18:07:39.250: D/MediaPlayer(23090): start() in</p> <p>08-31 18:07:39.260: D/MediaPlayer(23090): start() out</p> <p>08-31 18:07:39.270: D/MediaPlayer(23090): start() in</p> <p>08-31 18:07:39.270: D/MediaPlayer(23090): start() out</p> <p>08-31 18:07:39.270: D/MusicUtils(23090): after start</p> <p>08-31 18:07:49.340: D/MediaPlayer(23090): pause() in</p> <p>08-31 18:07:49.340: D/MediaPlayer(23090): pause() out 08-31 18:07:49.560: D/dalvikvm(23090): GC_CONCURRENT freed 239K, 45% free 3260K/5831K, external 494K/1006K, paused 10ms+7ms</p> <p>08-31 18:07:50.842: D/Music List(23090): in onCreate before getAllSongsFromSDCARD</p> <p>08-31 18:07:50.922: D/TAG(23090): set adapter</p> <p>08-31 18:07:50.922: D/TAG(23090): set adapter done</p> <p>08-31 18:07:51.953: D/dalvikvm(23090): GC_EXTERNAL_ALLOC freed 146K, 45% free 3264K/5831K, external 794K/855K, paused 29ms</p> <p>08-31 18:07:53.905: D/MusicList(23090): after setItemChecked</p> <p>08-31 18:07:54.585: D/Settings(23090): inside onActivityResult</p> <p>08-31 18:07:55.476: W/KeyCharacterMap(23090): Can't open keycharmap file</p> <p>08-31 18:07:55.476: W/KeyCharacterMap(23090): Error loading keycharmap </p> <p>file '/system/usr/keychars/cy8c-touchscreen.kcm.bin'. hw.keyboards.65538.devname='cy8c-touchscreen' 08-31 18:07:55.476: I/KeyCharacterMap(23090): Using default keymap: /system/usr/keychars/qwerty.kcm.bin</p> <p>08-31 18:07:55.486: D/MediaPlayer(23090): reset() in</p> <p>08-31 18:07:55.486: D/MediaPlayer(23090): reset() out</p> <p>08-31 18:07:55.486: D/MusicUtils(23090): after reset</p> <p>08-31 18:07:55.486: D/MusicUtils(23090): after setDataSource</p> <p>08-31 18:07:55.486: D/MusicUtils(23090): after setOnPreparedListener</p> <p>08-31 18:07:55.486: D/MusicUtils(23090): after setting errorListener</p> <p>08-31 18:07:55.486: D/MusicUtils(23090): after prepareAsync</p> <p>08-31 18:07:55.496: E/MediaPlayer(23090): error (1, -2147483648)</p> <p>08-31 18:07:55.506: E/MediaPlayer(23090): Error (1,-2147483648)</p> <p>08-31 18:07:55.506: D/MusicPlayer(23090): Error: 1,-2147483648</p>
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    1. PO
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    1. PTQuestion
    1. USNamratha
    1. USNamratha
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    1. This table or related slice is empty.
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    2. PO
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      1. POchanging a track media player android
      1. USNamratha
      1. VTBountyStart
    2. VO
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      1. POchanging a track media player android
      1. This table or related slice is empty.
      1. VTBountyClose
    1. COPost LogCat error here
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      1. POchanging a track media player android
      1. USiTurki
    2. COset this line of code 'mp.setAudioStreamType(AudioManager.STREAM_MUSIC);' before setdatasource. i think this will help you.
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      1. POchanging a track media player android
      1. USSatheesh
    3. CO@Satheesh: I tried this, it didn't work.
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      1. POchanging a track media player android
      1. USNamratha
 

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