// Copyright 2001, FreeHEP.
package org.freehep.graphicsio.swf;

import java.io.IOException;

/**
 * DefineSound TAG.
 *
 * @author Mark Donszelmann
 * @author Charles Loomis
 * @version $Id: DefineSound.java,v 1.3 2003/04/15 18:03:05 duns Exp $
 */
public class DefineSound
    extends DefinitionTag {

    public final static int NONE = 0;
    public final static int ADPCM = 1;
    public final static int MP3 = 2;
    public final static int NELLYMOSER = 3;

    public final static int RATE_5_5 = 0;
    public final static int RATE_11  = 1;
    public final static int RATE_22  = 2;
    public final static int RATE_44  = 3;

    public final static int BYTE  = 0;
    public final static int SHORT = 1;

    public final static int MONO   = 0;
    public final static int STEREO = 1;

    private int character;
    private int format;
    private int rate;
    private int size;
    private boolean stereo;
    private long samples;
    private int[] data;

    public DefineSound(int id, int format, int rate,
                       int size, boolean stereo,
                       long samples, int[] data) {
        this();
        character = id;
        this.format = format;
        this.rate = rate;
        this.size = size;
        this.stereo = stereo;
        this.samples = samples;
        this.data = data;
    }

    public DefineSound() {
        super(14, 1);
    }

    public SWFTag read(int tagID, SWFInputStream swf, int len)
        throws IOException {

        DefineSound tag = new DefineSound();
        tag.character = swf.readUnsignedShort();
        swf.getDictionary().put(tag.character, tag);
        tag.format = (int)swf.readUBits(4);
        tag.rate = (int)swf.readUBits(2);
        tag.size = swf.readBitFlag() ? SHORT : BYTE;
        tag.stereo = swf.readBitFlag();
        tag.samples = swf.readUnsignedInt();
        tag.data = swf.readUnsignedByte(len-7);
        return tag;
    }

    public void write(int tagID, SWFOutputStream swf) throws IOException {
        swf.writeUnsignedShort(character);
        swf.writeUBits(format, 4);
        swf.writeUBits(rate, 2);
        swf.writeBitFlag(size == SHORT);
        swf.writeBitFlag(stereo);
        swf.writeUnsignedInt(samples);
        swf.writeUnsignedByte(data);
    }

    public String toString() {
        StringBuffer s = new StringBuffer();
        s.append(super.toString()+"\n");
        s.append("  character:  "+character+"\n");
        s.append("  format:"+format+"\n");
        s.append("  rate:"+rate+"\n");
        s.append("  size:"+size+"\n");
        s.append("  stereo:"+stereo+"\n");
        s.append("  samples:"+samples+"\n");
        s.append("  length:"+data.length+"\n");
        return s.toString();
    }
}
