Android Open Source - vanilindy Bastp

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Back to project page vanilindy.

License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright (C) 2013 Adrian Ulrich <adrian@blinkenlights.ch>
 *//from  w  w w.  j av a  2 s  .  c o m
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>. 
 */


package ch.blinkenlights.bastp;

import ch.blinkenlights.bastp.OggFile;
import ch.blinkenlights.bastp.FlacFile;
import java.io.RandomAccessFile;
import java.io.IOException;
import java.util.HashMap;


public class Bastp {
  
  public Bastp() {
  }
  
  public HashMap getTags(String fname) {
    HashMap tags = new HashMap();
    try {
      RandomAccessFile ra = new RandomAccessFile(fname, "r");
      tags = getTags(ra);
      ra.close();
    }
    catch(Exception e) {
      /* we dont' care much: SOMETHING went wrong. d'oh! */
    }
    
    return tags;
  }
  
  public HashMap getTags(RandomAccessFile s) {
    HashMap tags = new HashMap();
    byte[] file_ff = new byte[4];
    
    try {
      s.read(file_ff);
      String magic = new String(file_ff);
      if(magic.equals("fLaC")) {
        tags = (new FlacFile()).getTags(s);
      }
      else if(magic.equals("OggS")) {
        tags = (new OggFile()).getTags(s);
      }
      else if(file_ff[0] == -1 && file_ff[1] == -5) { /* aka 0xfffb in real languages */
        tags = (new LameHeader()).getTags(s);
      }
      else if(magic.substring(0,3).equals("ID3")) {
        tags = (new ID3v2File()).getTags(s);
        if(tags.containsKey("_hdrlen")) {
          Long hlen = Long.parseLong( tags.get("_hdrlen").toString(), 10 );
          HashMap lameInfo = (new LameHeader()).parseLameHeader(s, hlen);
          /* add gain tags if not already present */
          inheritTag("REPLAYGAIN_TRACK_GAIN", lameInfo, tags);
          inheritTag("REPLAYGAIN_ALBUM_GAIN", lameInfo, tags);
        }
      }
      tags.put("_magic", magic);
    }
    catch (IOException e) {
    }
    return tags;
  }
  
  private void inheritTag(String key, HashMap from, HashMap to) {
    if(!to.containsKey(key) && from.containsKey(key)) {
      to.put(key, from.get(key));
    }
  }
  
}

Java Source Code List