1/**************************************************************************** 2** libmatroska : parse Matroska files, see http://www.matroska.org/ 3** 4** <file/class description> 5** 6** Copyright (C) 2002-2004 Steve Lhomme. All rights reserved. 7** 8** This file is part of libmatroska. 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** Contact license@matroska.org if any conditions of this licensing are 26** not clear to you. 27** 28**********************************************************************/ 29 30/*! 31 \file 32 \version \$Id: KaxSeekHead.h,v 1.7 2004/04/14 23:26:17 robux4 Exp $ 33 \author Steve Lhomme <robux4 @ users.sf.net> 34*/ 35#ifndef LIBMATROSKA_SEEK_HEAD_H 36#define LIBMATROSKA_SEEK_HEAD_H 37 38#include "matroska/KaxTypes.h" 39#include "ebml/EbmlMaster.h" 40#include "ebml/EbmlBinary.h" 41#include "ebml/EbmlUInteger.h" 42 43using namespace LIBEBML_NAMESPACE; 44 45START_LIBMATROSKA_NAMESPACE 46 47class KaxSegment; 48class KaxSeek; 49 50class MATROSKA_DLL_API KaxSeekHead : public EbmlMaster { 51 public: 52 KaxSeekHead(); 53 KaxSeekHead(const KaxSeekHead & ElementToClone) :EbmlMaster(ElementToClone) {} 54 static EbmlElement & Create() {return *(new KaxSeekHead);} 55 const EbmlCallbacks & Generic() const {return ClassInfos;} 56 static const EbmlCallbacks ClassInfos; 57 operator const EbmlId &() const {return ClassInfos.GlobalId;} 58 EbmlElement * Clone() const {return new KaxSeekHead(*this);} 59 60 /*! 61 \brief add an element to index in the Meta Seek data 62 \note the element should already be written in the file 63 */ 64 void IndexThis(const EbmlElement & aElt, const KaxSegment & ParentSegment); 65 66 KaxSeek * FindFirstOf(const EbmlCallbacks & Callbacks) const; 67 KaxSeek * FindNextOf(const KaxSeek &aPrev) const; 68}; 69 70class MATROSKA_DLL_API KaxSeek : public EbmlMaster { 71 public: 72 KaxSeek(); 73 KaxSeek(const KaxSeek & ElementToClone) :EbmlMaster(ElementToClone) {} 74 static EbmlElement & Create() {return *(new KaxSeek);} 75 const EbmlCallbacks & Generic() const {return ClassInfos;} 76 static const EbmlCallbacks ClassInfos; 77 operator const EbmlId &() const {return ClassInfos.GlobalId;} 78 EbmlElement * Clone() const {return new KaxSeek(*this);} 79 80 int64 Location() const; 81 bool IsEbmlId(const EbmlId & aId) const; 82 bool IsEbmlId(const KaxSeek & aPoint) const; 83}; 84 85class MATROSKA_DLL_API KaxSeekID : public EbmlBinary { 86 public: 87 KaxSeekID() {} 88 KaxSeekID(const KaxSeekID & ElementToClone) :EbmlBinary(ElementToClone){} 89 static EbmlElement & Create() {return *(new KaxSeekID);} 90 const EbmlCallbacks & Generic() const {return ClassInfos;} 91 static const EbmlCallbacks ClassInfos; 92 operator const EbmlId &() const {return ClassInfos.GlobalId;} 93 bool ValidateSize() const {return Size <= 4;} 94 EbmlElement * Clone() const {return new KaxSeekID(*this);} 95}; 96 97class MATROSKA_DLL_API KaxSeekPosition : public EbmlUInteger { 98 public: 99 KaxSeekPosition() {} 100 KaxSeekPosition(const KaxSeekPosition & ElementToClone) :EbmlUInteger(ElementToClone) {} 101 static EbmlElement & Create() {return *(new KaxSeekPosition);} 102 const EbmlCallbacks & Generic() const {return ClassInfos;} 103 static const EbmlCallbacks ClassInfos; 104 operator const EbmlId &() const {return ClassInfos.GlobalId;} 105 EbmlElement * Clone() const {return new KaxSeekPosition(*this);} 106}; 107 108END_LIBMATROSKA_NAMESPACE 109 110#endif // LIBMATROSKA_SEEK_HEAD_H 111