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/***************************************************************************
copyright : (C) 2005 by Brian Nickel
email : brian.nickel@gmail.com
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* This library 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 library; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
* USA *
***************************************************************************/
namespace TagLib.Asf
{
public abstract class Object
{
//////////////////////////////////////////////////////////////////////////
// private properties
//////////////////////////////////////////////////////////////////////////
private Guid id;
private long size;
//////////////////////////////////////////////////////////////////////////
// public methods
//////////////////////////////////////////////////////////////////////////
public Object (Asf.File file, long position)
{
file.Seek (position);
id = file.ReadGuid ();
size = file.ReadQWord ();
}
public Object (Guid guid)
{
id = guid;
size = 0;
}
public abstract ByteVector Render ();
public static ByteVector RenderUnicode (string str)
{
return ByteVector.FromString (str, StringType.UTF16LE) + ByteVector.FromShort (0);
}
public static ByteVector RenderDWord (uint value)
{
return ByteVector.FromUInt (value, false);
}
public static ByteVector RenderQWord (long value)
{
return ByteVector.FromLong (value, false);
}
public static ByteVector RenderWord (short value)
{
return ByteVector.FromShort (value, false);
}
//////////////////////////////////////////////////////////////////////////
// public properties
//////////////////////////////////////////////////////////////////////////
public Guid Guid {get {return id;}}
public long OriginalSize {get {return size;}}
//////////////////////////////////////////////////////////////////////////
// protected methods
//////////////////////////////////////////////////////////////////////////
protected ByteVector Render (ByteVector data)
{
if (data == null)
data = new ByteVector ();
return Guid.Render () + RenderQWord (data.Count + 24) + data;
}
}
}
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