src/add-ons/media/plugins/matroska/libebml/EbmlBinary.cpp

   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: EbmlBinary.cpp 1112 2005-03-28 09:55:50Z mosu $
  34         \author Steve Lhomme     <robux4 @ users.sf.net>
  35         \author Julien Coloos   <suiryc @ users.sf.net>
  36 */
  37 #include <cassert>
  38
  39 #include "ebml/EbmlBinary.h"
  40
  41 START_LIBEBML_NAMESPACE
  42
  43 EbmlBinary::EbmlBinary()
  44  :EbmlElement(0, false), Data(NULL)
  45 {}
  46
  47 EbmlBinary::EbmlBinary(const EbmlBinary & ElementToClone)
  48  :EbmlElement(ElementToClone)
  49 {
  50         if (ElementToClone.Data == NULL)
  51                 Data = NULL;
  52         else {
  53                 Data = (binary *)malloc(Size * sizeof(binary));
  54                 assert(Data != NULL);
  55                 memcpy(Data, ElementToClone.Data, Size);
  56         }
  57 }
  58
  59 EbmlBinary::~EbmlBinary(void) {
  60         if(Data)
  61                 free(Data);
  62 }
  63
  64 uint32 EbmlBinary::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
  65 {
  66         output.writeFully(Data,Size);
  67
  68         return Size;
  69 }
  70
  71 /*!
  72         \note no Default binary value handled
  73 */
  74 uint64 EbmlBinary::UpdateSize(bool bKeepIntact, bool bForceRender)
  75 {
  76         return Size;
  77 }
  78
  79 uint64 EbmlBinary::ReadData(IOCallback & input, ScopeMode ReadFully)
  80 {
  81         if (Data != NULL)
  82                 free(Data);
  83
  84         if (ReadFully == SCOPE_NO_DATA)
  85         {
  86                 Data = NULL;
  87                 return Size;
  88         }
  89
  90         Data = (binary *)malloc(Size * sizeof(binary));
  91         assert(Data != NULL);
  92         bValueIsSet = true;
  93         return input.read(Data, Size);
  94 }
  95
  96 bool EbmlBinary::operator==(const EbmlBinary & ElementToCompare) const
  97 {
  98         return ((Size == ElementToCompare.Size) && !memcmp(Data, ElementToCompare.Data, Size));
  99 }
 100
 101 END_LIBEBML_NAMESPACE