Mfhd.java

/*
 * myLib - https://github.com/taktod/myLib
 * Copyright (c) 2014 ttProject. All rights reserved.
 * 
 * Licensed under The MIT license.
 */
package com.ttProject.container.mp4.type;

import org.apache.log4j.Logger;

import com.ttProject.container.mp4.Mp4Atom;
import com.ttProject.container.mp4.Type;
import com.ttProject.nio.channels.IReadChannel;
import com.ttProject.unit.extra.BitLoader;
import com.ttProject.unit.extra.bit.Bit24;
import com.ttProject.unit.extra.bit.Bit32;
import com.ttProject.unit.extra.bit.Bit8;

/**
 * mfhdの定義
 * @author taktod
 */
public class Mfhd extends Mp4Atom {
	/** ロガー */
	@SuppressWarnings("unused")
	private Logger logger = Logger.getLogger(Mfhd.class);
	private Bit8  version = new Bit8();
	private Bit24 flags   = new Bit24();
	private Bit32 sequenceNumber = null; // これはchunkのincrementされる番号らしい
	/**
	 * コンストラクタ
	 * @param size
	 * @param name
	 */
	public Mfhd(Bit32 size, Bit32 name) {
		super(size, name);
	}
	/**
	 * コンストラクタ
	 */
	public Mfhd() {
		super(new Bit32(), Type.getTypeBit(Type.Mfhd));
	}
	/**
	 * {@inheritDoc}
	 */
	@Override
	public void minimumLoad(IReadChannel channel) throws Exception {
		super.minimumLoad(channel);
		BitLoader loader = new BitLoader(channel);
		loader.load(version, flags);
	}
	/**
	 * {@inheritDoc}
	 */
	@Override
	public void load(IReadChannel channel) throws Exception {
		sequenceNumber = new Bit32();
		BitLoader loader = new BitLoader(channel);
		loader.load(sequenceNumber);
		super.load(channel);
	}
	/**
	 * {@inheritDoc}
	 */
	@Override
	protected void requestUpdate() throws Exception {
	}
}