HandlerReferenceBox.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This 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 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.restcomm.media.resource.player.video.mpeg;

import java.io.DataInputStream;
import java.io.IOException;

/**
 * This box within a Media Box declares the process by which the media-data in 
 * the track is presented, and thus, the nature of the media in a track. 
 * For example, a video track would be handled by a video handler.
 * This box when present within a Meta Box, declares the structure or format of 
 * the meta box contents. There is a general handler for metadata streams 
 * of any type; the specific format is identified by the sample entry, as for 
 * video or audio, for example. If they are in text, then a MIME format is 
 * supplied to document their format; if in XML, each sample is a complete 
 * XML document, and the namespace of the XML is also supplied.
 * 
 * 
 * Box Type: hdlr
 * Container: Media Box (mdia) or Meta Box (meta)
 * Mandatory: Yes
 * Quantity: Exactly one
 * 
 * @author kulikov
 */
public class HandlerReferenceBox extends FullBox {
	
	// File Type = hdlr
	static byte[] TYPE = new byte[] { AsciiTable.ALPHA_h, AsciiTable.ALPHA_d, AsciiTable.ALPHA_l, AsciiTable.ALPHA_r };
	static String TYPE_S = "hdlr";
	static {
		bytetoTypeMap.put(TYPE, TYPE_S);
	}
    
    private String handlerType;
    private String name;
    
    public HandlerReferenceBox(long size) {
        super(size, TYPE_S);
    }

    public String getHandlerType() {
        return handlerType;
    }
    
    public String getName() {
        return name;
    }
    
    @Override
    protected int load(DataInputStream fin) throws IOException {
    	int count = 8;
        count+=super.load(fin);
        
        fin.readInt();
        
        handlerType = readType(fin);
        
        fin.readInt();
        fin.readInt();
        fin.readInt();
        
        count+=20;
        int size = (int)(this.getSize()-count);
        byte[] data = new byte[size];
        for(int i=0;i<size;i++){
        	data[i] = fin.readByte();
        	count++;
        }
        
        name = new String(data);
        
        //name = readText(fin);
        return (int) getSize();
    }    
}