APEFileReader.java

/*
 * Copyright (c) 2008, 2009, 2010 Denis Tulskiy
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with this work.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.tulskiy.musique.audio.formats.ape;

import org.jaudiotagger.tag.Tag;

import com.tulskiy.musique.audio.AudioFileReader;
import com.tulskiy.musique.playlist.Track;
import com.tulskiy.musique.playlist.TrackData;

import davaguine.jmac.info.APEFileInfo;
import davaguine.jmac.info.APEHeader;
import davaguine.jmac.info.ID3Tag;
import davaguine.jmac.tools.RandomAccessFile;

/**
 * @Author: Denis Tulskiy
 * @Date: 26.06.2009
 */
public class APEFileReader extends AudioFileReader {
    private APETagProcessor tagProcessor = new APETagProcessor();

    public Track readSingle(Track track) {
        try {
            ID3Tag.setDefaultEncoding(defaultCharset.name());
            RandomAccessFile ras = new RandomAccessFile(track.getTrackData().getFile(), "r");
            APEHeader header = new APEHeader(ras);
            APEFileInfo fileInfo = new APEFileInfo();
            header.Analyze(fileInfo);
            parseInfo(track, fileInfo);

            tagProcessor.readAPEv2Tag(track);
            ras.close();
            return track;
        } catch (Exception e) {
            System.out.println("Couldn't read file: " + track.getTrackData().getFile());
        }
        return null;
    }

    public boolean isFileSupported(String ext) {
        return ext.equalsIgnoreCase("ape");
    }

    private void parseInfo(Track track, APEFileInfo fileInfo) {
    	TrackData trackData = track.getTrackData();
    	trackData.setChannels(fileInfo.nChannels);
    	trackData.setSampleRate(fileInfo.nSampleRate);
    	trackData.setTotalSamples(fileInfo.nTotalBlocks);
    	trackData.setStartPosition(0);
    	trackData.setCodec("Monkey's Audio");
    	trackData.setBitrate(fileInfo.nAverageBitrate);
    }

}