Android Open Source - audioplayer Cover Album Editor

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License

The source code is released under:

GNU General Public License

Java Source Code

package fr.julien_dumortier.simplemusicplayer.coveralbumeditor;
/*  w  ww .j  a  v a2  s.c  om*/
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import org.jaudiotagger.audio.AudioFileIO;
import org.jaudiotagger.audio.mp3.MP3File;
import org.jaudiotagger.tag.id3.ID3v23Tag;
import fr.julien_dumortier.simplemusicplayer.item.Album;
import fr.julien_dumortier.simplemusicplayer.item.Item;
import fr.julien_dumortier.simplemusicplayer.item.Track;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;

public class CoverAlbumEditor {

  public interface IOnUpdateFinishListener {
    public void onCoverUpdate(boolean success);
  }
  
  public static void startUpdateCoverAlbum(final Context context, final String pictureUrl, final Item item, final IOnUpdateFinishListener listener) {
    new Thread("update cover thread") {
      public void run() {
        try {
          listener.onCoverUpdate(updateCoverAlbum(context, pictureUrl, item));
        } catch (Exception e) {
          listener.onCoverUpdate(false);
        }
      }
    }.start();
  }
  
  public static boolean updateCoverAlbum(Context context, Bitmap bmp, Item item) throws NumberFormatException, IOException {
    

    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    bmp.compress(Bitmap.CompressFormat.PNG, 100, stream);
    byte[] byteArray = stream.toByteArray();
    
    if(item instanceof Album && byteArray!=null)  
      return updateArtworkCoverAlbumInDb(context, byteArray, Long.parseLong(((Album)item).getId()));
    else if(item instanceof Track && byteArray!=null) {
      return setID3ArtworkCoverAlbum(byteArray, ((Track)item).getDataTrack()) &&
      updateArtworkCoverAlbumInDb(context, byteArray, Long.parseLong(((Track)item).getAlbumId()));
    }
    return false;
  }
  
  public static boolean updateCoverAlbum(Context context, String pictureUrl, Item item) throws Exception {
    
    byte[] byteArray = null;
    
    if(item instanceof Album || item instanceof Track)
      byteArray = downloadUrlToByteArray(pictureUrl); 
    
    if(item instanceof Album && byteArray!=null)  
      return updateArtworkCoverAlbumInDb(context, byteArray, Long.parseLong(((Album)item).getId()));
    else if(item instanceof Track && byteArray!=null) {
      return setID3ArtworkCoverAlbum(byteArray, ((Track)item).getDataTrack()) &&
      updateArtworkCoverAlbumInDb(context, byteArray, Long.parseLong(((Track)item).getAlbumId()));
    }
    return false;
  }
  
  private static boolean setID3ArtworkCoverAlbum(byte[] picture, String filePath) {
      try {
        //set id3 tag
        File file = new File(filePath);
        MP3File f = (MP3File) AudioFileIO.read(file);    
        ID3v23Tag tag = new ID3v23Tag();
            f.getTag().addField(tag.createArtworkField(picture, "image/png"));            
            f.commit();             
            return true;
      } catch (Exception e) {
        e.printStackTrace();
        return false;
      }
  }
    
  private static boolean updateArtworkCoverAlbumInDb(Context context, byte[] picture, long albumId) throws IOException {
      //update media player db
      Uri sArtworkUri = Uri.parse("content://media/external/audio/albumart");
      Uri uri = ContentUris.withAppendedId(sArtworkUri, albumId);
      ContentResolver res = context.getContentResolver();
      OutputStream in = res.openOutputStream(uri);
      in.write(picture);
      in.close();
      return true;
  }
    
  public static byte[] downloadUrlToByteArray(String url) throws Exception {
    try {
    URL toDownload = new URL(url);
      ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
      byte[] chunk = new byte[4096];
      int bytesRead;
      InputStream stream = toDownload.openStream();

      while ((bytesRead = stream.read(chunk)) > 0) {
          outputStream.write(chunk, 0, bytesRead);
      }
      byte [] data = outputStream.toByteArray();
      Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
      if (bitmap !=null) {
          int h = bitmap.getHeight();
          int w = bitmap.getWidth();
          if(h>500||w>500) {
            h = 500*h/w;
            w = 500;
          }
          bitmap = Bitmap.createScaledBitmap(bitmap, w, h, true);
      }
      ByteArrayOutputStream streamOut = new ByteArrayOutputStream();
      bitmap.compress(Bitmap.CompressFormat.PNG, 100, streamOut);
      return streamOut.toByteArray();
    } catch(OutOfMemoryError e) {
      throw new Exception("out of memory");
    }
  }
}

Java Source Code List

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