src/add-ons/media/plugins/matroska/libebml/ebml/EbmlVoid.h

   1 /****************************************************************************
   2 ** libebml : parse EBML files, see http://embl.sourceforge.net/
   3 **
   4 ** <file/class description>
   5 **
   6 ** Copyright (C) 2002-2005 Steve Lhomme.  All rights reserved.
   7 **
   8 ** This file is part of libebml.
   9 **
  10 ** This library is free software; you can redistribute it and/or
  11 ** modify it under the terms of the GNU Lesser General Public
  12 ** License as published by the Free Software Foundation; either
  13 ** version 2.1 of the License, or (at your option) any later version.
  14 **
  15 ** This library is distributed in the hope that it will be useful,
  16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 ** Lesser General Public License for more details.
  19 **
  20 ** You should have received a copy of the GNU Lesser General Public
  21 ** License along with this library; if not, write to the Free Software
  22 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23 **
  24 ** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
  25 **
  26 ** Contact license@matroska.org if any conditions of this licensing are
  27 ** not clear to you.
  28 **
  29 **********************************************************************/
  30
  31 /*!
  32         \file
  33         \version \$Id: EbmlVoid.h 1079 2005-03-03 13:18:14Z robux4 $
  34         \author Steve Lhomme     <robux4 @ users.sf.net>
  35 */
  36 #ifndef LIBEBML_VOID_H
  37 #define LIBEBML_VOID_H
  38
  39 #include "EbmlTypes.h"
  40 #include "EbmlBinary.h"
  41
  42 START_LIBEBML_NAMESPACE
  43
  44 class EBML_DLL_API EbmlVoid : public EbmlBinary {
  45         public:
  46                 EbmlVoid();
  47                 EbmlVoid(const EbmlVoid & ElementToClone) :EbmlBinary(ElementToClone){}
  48                 static EbmlElement & Create() {return *(new EbmlVoid);}
  49                 const EbmlCallbacks & Generic() const {return ClassInfos;}
  50                 bool ValidateSize() const {return true;} // any void element is accepted
  51                 static const EbmlCallbacks ClassInfos;
  52
  53                 operator const EbmlId &() const {return ClassInfos.GlobalId;}
  54                 bool IsYourId(const EbmlId & TestId) const;
  55
  56                 /*!
  57                         \brief Set the size of the data (not the complete size of the element)
  58                 */
  59                 void SetSize(uint64 aSize) {Size = aSize;}
  60
  61                 /*!
  62                         \note overwrite to write fake data
  63                 */
  64                 uint32 RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
  65
  66                 /*!
  67                         \brief Replace the void element content (written) with this one
  68                 */
  69                 uint64 ReplaceWith(EbmlElement & EltToReplaceWith, IOCallback & output, bool ComeBackAfterward = true, bool bKeepIntact = false);
  70
  71                 /*!
  72                         \brief Void the content of an element
  73                 */
  74                 uint64 Overwrite(const EbmlElement & EltToVoid, IOCallback & output, bool ComeBackAfterward = true, bool bKeepIntact = false);
  75
  76                 EbmlElement * Clone() const {return new EbmlVoid(*this);}
  77 };
  78
  79 END_LIBEBML_NAMESPACE
  80
  81 #endif // LIBEBML_VOID_H