From 7b4779fe5f6005efa763fdc565e14700760e8fd9 Mon Sep 17 00:00:00 2001
From: Steve Lhomme <slhomme@matroska.org>
Date: Tue, 6 Apr 2010 07:21:44 +0000
Subject: [PATCH] fix compilation when EBML_STRICT_API is not defined
git-svn-id: https://matroska.svn.sourceforge.net/svnroot/matroska/trunk/libebml@74 a6f86f6d-0131-4f8e-9e7b-e335508773d5
---
ebml/EbmlElement.h | 820 ++++++++++++++++++++++-----------------------
src/EbmlCrc32.cpp | 666 ++++++++++++++++++------------------
2 files changed, 743 insertions(+), 743 deletions(-)
diff --git a/ebml/EbmlElement.h b/ebml/EbmlElement.h
index e245812..d1ecc2f 100644
--- a/ebml/EbmlElement.h
+++ b/ebml/EbmlElement.h
@@ -1,410 +1,410 @@
-/****************************************************************************
-** libebml : parse EBML files, see http://embl.sourceforge.net/
-**
-** <file/class description>
-**
-** Copyright (C) 2002-2010 Steve Lhomme. All rights reserved.
-**
-** This library is free software; you can redistribute it and/or
-** modify it under the terms of the GNU Lesser General Public
-** License as published by the Free Software Foundation; either
-** version 2.1 of the License, or (at your option) any later version.
-**
-** 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
-**
-** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
-**
-** Contact license@matroska.org if any conditions of this licensing are
-** not clear to you.
-**
-**********************************************************************/
-
-/*!
- \file
- \version \$Id: EbmlElement.h 1232 2005-10-15 15:56:52Z robux4 $
- \author Steve Lhomme <robux4 @ users.sf.net>
-*/
-#ifndef LIBEBML_ELEMENT_H
-#define LIBEBML_ELEMENT_H
-
-#include "EbmlTypes.h"
-#include "EbmlId.h"
-#include "IOCallback.h"
-
-START_LIBEBML_NAMESPACE
-
-/*!
- \brief The size of the EBML-coded length
-*/
-int EBML_DLL_API CodedSizeLength(uint64 Length, unsigned int SizeLength, bool bSizeIsFinite = true);
-
-/*!
- \brief The coded value of the EBML-coded length
- \note The size of OutBuffer must be 8 octets at least
-*/
-int EBML_DLL_API CodedValueLength(uint64 Length, int CodedSize, binary * OutBuffer);
-
-/*!
- \brief Read an EBML-coded value from a buffer
- \return the value read
-*/
-uint64 EBML_DLL_API ReadCodedSizeValue(const binary * InBuffer, uint32 & BufferSize, uint64 & SizeUnknown);
-
-/*!
- \brief The size of the EBML-coded signed length
-*/
-int EBML_DLL_API CodedSizeLengthSigned(int64 Length, unsigned int SizeLength);
-
-/*!
- \brief The coded value of the EBML-coded signed length
- \note the size of OutBuffer must be 8 octets at least
-*/
-int EBML_DLL_API CodedValueLengthSigned(int64 Length, int CodedSize, binary * OutBuffer);
-
-/*!
- \brief Read a signed EBML-coded value from a buffer
- \return the value read
-*/
-int64 EBML_DLL_API ReadCodedSizeSignedValue(const binary * InBuffer, uint32 & BufferSize, uint64 & SizeUnknown);
-
-class EbmlStream;
-class EbmlSemanticContext;
-class EbmlElement;
-
-extern const EbmlSemanticContext Context_EbmlGlobal;
-
-#if defined(EBML_STRICT_API)
-#define EBML_CONCRETE_CLASS(Type) \
- public: \
- virtual const EbmlSemanticContext &Context() const {return ClassInfos.GetContext();} \
- virtual const char *DebugName() const {return ClassInfos.GetName();} \
- virtual operator const EbmlId &() const {return ClassInfos.ClassId();} \
- virtual EbmlElement & CreateElement() const {return Create();} \
- virtual EbmlElement * Clone() const { return new Type(*this); } \
- static EbmlElement & Create() {return *(new Type);} \
- static const EbmlCallbacks & ClassInfo() {return ClassInfos;} \
- static const EbmlId & ClassId() {return ClassInfos.ClassId();} \
- private: \
- static const EbmlCallbacks ClassInfos; \
-
-
-#define DEFINE_xxx_CONTEXT(x,global) \
- const EbmlSemanticContext Context_##x = EbmlSemanticContext(countof(ContextList_##x), ContextList_##x, NULL, global, NULL); \
-
-#define DEFINE_xxx_MASTER(x,id,idl,parent,name,global) \
- const EbmlId Id_##x (id, idl); \
- const EbmlSemanticContext Context_##x = EbmlSemanticContext(countof(ContextList_##x), ContextList_##x, &Context_##parent, global, &EBML_INFO(x)); \
- const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_##x); \
-
-#define DEFINE_xxx_MASTER_ORPHAN(x,id,idl,name,global) \
- const EbmlId Id_##x (id, idl); \
- const EbmlSemanticContext Context_##x = EbmlSemanticContext(countof(ContextList_##x), ContextList_##x, NULL, global, &EBML_INFO(x)); \
- const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_##x); \
-
-#define DEFINE_xxx_CLASS(x,id,idl,parent,name,global) \
- const EbmlId Id_##x (id, idl); \
- const EbmlSemanticContext Context_##x = EbmlSemanticContext(0, NULL, &Context_##parent, global, &EBML_INFO(x)); \
- const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_##x); \
-
-#define DEFINE_xxx_CLASS_GLOBAL(x,id,idl,name,global) \
- const EbmlId Id_##x (id, idl); \
- const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_EbmlGlobal); \
-
-#define DEFINE_xxx_CLASS_ORPHAN(x,id,idl,name,global) \
- const EbmlId Id_##x (id, idl); \
- const EbmlSemanticContext Context_##x = EbmlSemanticContext(0, NULL, NULL, global, &EBML_INFO(x)); \
- const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_##x); \
-
-#define DEFINE_EBML_CONTEXT(x) DEFINE_xxx_CONTEXT(x,*GetEbmlGlobal_Context)
-#define DEFINE_EBML_MASTER(x,id,idl,parent,name) DEFINE_xxx_MASTER(x,id,idl,parent,name,*GetEbmlGlobal_Context)
-#define DEFINE_EBML_MASTER_ORPHAN(x,id,idl,name) DEFINE_xxx_MASTER_ORPHAN(x,id,idl,name,*GetEbmlGlobal_Context)
-#define DEFINE_EBML_CLASS(x,id,idl,parent,name) DEFINE_xxx_CLASS(x,id,idl,parent,name,*GetEbmlGlobal_Context)
-#define DEFINE_EBML_CLASS_GLOBAL(x,id,idl,name) DEFINE_xxx_CLASS_GLOBAL(x,id,idl,name,*GetEbmlGlobal_Context)
-#define DEFINE_EBML_CLASS_ORPHAN(x,id,idl,name) DEFINE_xxx_CLASS_ORPHAN(x,id,idl,name,*GetEbmlGlobal_Context)
-
-
-#define EBML_INFO(ref) ref::ClassInfo()
-#define EBML_ID(ref) ref::ClassId()
-#define EBML_CONTEXT(e) (e)->Context()
-#define EBML_NAME(e) (e)->DebugName()
-
-#define EBML_INFO_ID(cb) (cb).ClassId()
-#define EBML_INFO_NAME(cb) (cb).GetName()
-#define EBML_INFO_CREATE(cb) (cb).NewElement()
-#define EBML_INFO_CONTEXT(cb) (cb).GetContext()
-
-#define EBML_SEM_UNIQUE(s) (s).IsUnique()
-#define EBML_SEM_INFO(s) (const EbmlCallbacks &)(s)
-#define EBML_SEM_ID(s) ((const EbmlCallbacks &)(s)).ClassId()
-#define EBML_SEM_CONTEXT(s) ((const EbmlCallbacks &)(s)).GetContext()
-#define EBML_SEM_CREATE(s) (s).Create()
-
-#define EBML_CTX_SIZE(c) (c).GetSize()
-#define EBML_CTX_MASTER(c) (c).GetMaster()
-#define EBML_CTX_PARENT(c) (c).Parent()
-#else
-#define EBML_CONCRETE_CLASS(Type) \
- public: \
- virtual const EbmlCallbacks & Generic() const {return ClassInfos;} \
- virtual operator const EbmlId &() const {return ClassInfos.GlobalId;} \
- virtual EbmlElement & CreateElement() const {return Create();} \
- virtual EbmlElement * Clone() const { return new Type(*this); } \
- static EbmlElement & Create() {return *(new Type);} \
- static const EbmlCallbacks ClassInfos; \
-
-#define EBML_INFO(ref) ref::ClassInfos
-#define EBML_ID(ref) ref::ClassInfos.GlobalId
-#define EBML_CONTEXT(e) (e)->Generic().Context
-#define EBML_NAME(e) (e)->Generic().DebugName
-
-#define EBML_INFO_ID(cb) (cb).GlobalId
-#define EBML_INFO_NAME(cb) (cb).DebugName
-#define EBML_INFO_CREATE(cb) (cb).Create()
-#define EBML_INFO_CONTEXT(cb) (cb).Context
-
-#define EBML_SEM_UNIQUE(s) (s).Unique
-#define EBML_SEM_INFO(s) (s).GetCallbacks
-#define EBML_SEM_ID(s) (s).GetCallbacks.GlobalId
-#define EBML_SEM_CONTEXT(s) (s).GetCallbacks.Context
-#define EBML_SEM_CREATE(s) (s).Create()
-
-#define EBML_CTX_SIZE(c) (c).Size
-#define EBML_CTX_MASTER(c) (c).MasterElt
-#define EBML_CTX_PARENT(c) (c).UpTable
-#endif
-
-// functions for generic handling of data (should be static to all classes)
-/*!
- \todo Handle default value
-*/
-class EBML_DLL_API EbmlCallbacks {
- public:
- EbmlCallbacks(EbmlElement & (*Creator)(), const EbmlId & aGlobalId, const char * aDebugName, const EbmlSemanticContext & aContext);
-
- inline const EbmlId & ClassId() const { return GlobalId; }
- inline const EbmlSemanticContext & GetContext() const { return Context; }
- inline const char * GetName() const { return DebugName; }
- inline EbmlElement & NewElement() const { return Create(); }
-
-#if defined(EBML_STRICT_API)
- private:
-#endif
- EbmlElement & (*Create)();
- const EbmlId & GlobalId;
- const char * DebugName;
- const EbmlSemanticContext & Context;
-};
-
-/*!
- \brief contains the semantic informations for a given level and all sublevels
- \todo move the ID in the element class
-*/
-class EBML_DLL_API EbmlSemantic {
- public:
- EbmlSemantic(bool aMandatory, bool aUnique, const EbmlCallbacks & aGetCallbacks)
- :Mandatory(aMandatory), Unique(aUnique), GetCallbacks(aGetCallbacks) {}
-
- inline bool IsMandatory() const { return Mandatory; }
- inline bool IsUnique() const { return Unique; }
- inline EbmlElement & Create() const { return EBML_INFO_CREATE(GetCallbacks); }
- inline operator const EbmlCallbacks &() { return GetCallbacks; }
-
-#if defined(EBML_STRICT_API)
- private:
-#endif
- bool Mandatory; ///< wether the element is mandatory in the context or not
- bool Unique;
- const EbmlCallbacks & GetCallbacks;
-};
-
-typedef const class EbmlSemanticContext & (*_GetSemanticContext)();
-
-/*!
- Context of the element
- \todo allow more than one parent ?
-*/
-class EBML_DLL_API EbmlSemanticContext {
- public:
- EbmlSemanticContext(size_t aSize,
- const EbmlSemantic *aMyTable,
- const EbmlSemanticContext *aUpTable,
- const _GetSemanticContext aGetGlobalContext,
- const EbmlCallbacks *aMasterElt)
- : MyTable(aMyTable), GetGlobalContext(aGetGlobalContext), Size(aSize),
- UpTable(aUpTable), MasterElt(aMasterElt) {}
-
- bool operator!=(const EbmlSemanticContext & aElt) const {
- return ((Size != aElt.Size) || (MyTable != aElt.MyTable) ||
- (UpTable != aElt.UpTable) || (GetGlobalContext != aElt.GetGlobalContext) |
- (MasterElt != aElt.MasterElt));
- }
-
- inline size_t GetSize() const { return Size; }
- inline const EbmlCallbacks* GetMaster() const { return MasterElt; }
- inline const EbmlSemanticContext* Parent() const { return UpTable; }
-
- const EbmlSemantic *MyTable; ///< First element in the table
- const _GetSemanticContext GetGlobalContext; ///< global elements supported at this level
-
-#if defined(EBML_STRICT_API)
- private:
-#endif
- size_t Size; ///< number of elements in the table
- const EbmlSemanticContext *UpTable; ///< Parent element
- /// \todo replace with the global context directly
- const EbmlCallbacks *MasterElt;
-};
-
-/*!
- \class EbmlElement
- \brief Hold basic informations about an EBML element (ID + length)
-*/
-class EBML_DLL_API EbmlElement {
- public:
- EbmlElement(uint64 aDefaultSize, bool bValueSet = false);
- virtual ~EbmlElement();
-
- /// Set the minimum length that will be used to write the element size (-1 = optimal)
- void SetSizeLength(int NewSizeLength) {SizeLength = NewSizeLength;}
- int GetSizeLength() const {return SizeLength;}
-
- static EbmlElement * FindNextElement(IOCallback & DataStream, const EbmlSemanticContext & Context, int & UpperLevel, uint64 MaxDataSize, bool AllowDummyElt, unsigned int MaxLowerLevel = 1);
- static EbmlElement * FindNextID(IOCallback & DataStream, const EbmlCallbacks & ClassInfos, const uint64 MaxDataSize);
-
- /*!
- \brief find the next element with the same ID
- */
- EbmlElement * FindNext(IOCallback & DataStream, const uint64 MaxDataSize);
-
- EbmlElement * SkipData(EbmlStream & DataStream, const EbmlSemanticContext & Context, EbmlElement * TestReadElt = NULL, bool AllowDummyElt = false);
-
- /*!
- \brief Give a copy of the element, all data inside the element is copied
- \return NULL if there is not enough memory
- */
- virtual EbmlElement * Clone() const = 0;
-
- virtual operator const EbmlId &() const = 0;
-#if defined(EBML_STRICT_API)
- virtual const char *DebugName() const = 0;
- virtual const EbmlSemanticContext &Context() const = 0;
-#else
- /// return the generic callback to monitor a derived class
- virtual const EbmlCallbacks & Generic() const = 0;
-#endif
- virtual EbmlElement & CreateElement() const = 0;
-
- // by default only allow to set element as finite (override when needed)
- virtual bool SetSizeInfinite(bool bIsInfinite = true) {return !bIsInfinite;}
-
- virtual bool ValidateSize() const = 0;
-
- uint64 GetElementPosition() const {
- return ElementPosition;
- }
-
- uint64 ElementSize(bool bKeepIntact = false) const; /// return the size of the header+data, before writing
-
- filepos_t Render(IOCallback & output, bool bKeepIntact = false, bool bKeepPosition = false, bool bForceRender = false);
-
- virtual filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false) = 0; /// update the Size of the Data stored
- virtual filepos_t GetSize() const {return Size;} /// return the size of the data stored in the element, on reading
-
- virtual filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA) = 0;
- virtual void Read(EbmlStream & inDataStream, const EbmlSemanticContext & Context, int & UpperEltFound, EbmlElement * & FoundElt, bool AllowDummyElt = false, ScopeMode ReadFully = SCOPE_ALL_DATA);
-
- bool IsLocked() const {return bLocked;}
- void Lock(bool bLock = true) { bLocked = bLock;}
-
- /*!
- \brief default comparison for elements that can't be compared
- */
- virtual bool IsSmallerThan(const EbmlElement *Cmp) const;
- static bool CompareElements(const EbmlElement *A, const EbmlElement *B);
-
- virtual bool IsDummy() const {return false;}
- virtual bool IsMaster() const {return false;}
-
- uint8 HeadSize() const {
- return EBML_ID_LENGTH(EbmlId(*this)) + CodedSizeLength(Size, SizeLength, bSizeIsFinite);
- } /// return the size of the head, on reading/writing
-
- /*!
- \brief Force the size of an element
- \warning only possible if the size is "undefined"
- */
- bool ForceSize(uint64 NewSize);
-
- filepos_t OverwriteHead(IOCallback & output, bool bKeepPosition = false);
-
- /*!
- \brief void the content of the element (replace by EbmlVoid)
- */
- uint32 VoidMe(IOCallback & output, bool bKeepIntact = false);
-
- bool DefaultISset() const {return DefaultIsSet;}
- virtual bool IsDefaultValue() const = 0;
- bool IsFiniteSize() const {return bSizeIsFinite;}
-
- /*!
- \brief set the default size of an element
- */
- virtual void SetDefaultSize(uint64 aDefaultSize) {DefaultSize = aDefaultSize;}
-
- bool ValueIsSet() const {return bValueIsSet;}
-
- inline uint64 GetEndPosition() const {
- return SizePosition + CodedSizeLength(Size, SizeLength, bSizeIsFinite) + Size;
- }
-
- protected:
- /*!
- \brief find any element in the stream
- \return a DummyRawElement if the element is unknown or NULL if the element dummy is not allowed
- */
- static EbmlElement *CreateElementUsingContext(const EbmlId & aID, const EbmlSemanticContext & Context, int & LowLevel, bool IsGlobalContext, bool bAllowDummy = false, unsigned int MaxLowerLevel = 1);
-
- filepos_t RenderHead(IOCallback & output, bool bForceRender, bool bKeepIntact = false, bool bKeepPosition = false);
- filepos_t MakeRenderHead(IOCallback & output, bool bKeepPosition);
-
- /*!
- \brief prepare the data before writing them (in case it's not already done by default)
- */
- virtual filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false) = 0;
-
- /*!
- \brief special constructor for cloning
- */
- EbmlElement(const EbmlElement & ElementToClone);
-
- inline uint64 GetDefaultSize() const {return DefaultSize;}
- inline void SetSize_(uint64 aSize) {Size = aSize;}
- inline void SetValueIsSet(bool Set = true) {bValueIsSet = Set;}
- inline void SetDefaultIsSet(bool Set = true) {DefaultIsSet = Set;}
- inline void SetSizeIsFinite(bool Set = true) {bSizeIsFinite = Set;}
- inline uint64 GetSizePosition() const {return SizePosition;}
-
-#if defined(EBML_STRICT_API)
- private:
-#endif
- uint64 Size; ///< the size of the data to write
- uint64 DefaultSize; ///< Minimum data size to fill on rendering (0 = optimal)
- int SizeLength; /// the minimum size on which the size will be written (0 = optimal)
- bool bSizeIsFinite;
- uint64 ElementPosition;
- uint64 SizePosition;
- bool bValueIsSet;
- bool DefaultIsSet;
- bool bLocked;
-};
-
-END_LIBEBML_NAMESPACE
-
-#endif // LIBEBML_ELEMENT_H
+/****************************************************************************
+** libebml : parse EBML files, see http://embl.sourceforge.net/
+**
+** <file/class description>
+**
+** Copyright (C) 2002-2010 Steve Lhomme. All rights reserved.
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Lesser General Public
+** License as published by the Free Software Foundation; either
+** version 2.1 of the License, or (at your option) any later version.
+**
+** 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
+**
+** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
+**
+** Contact license@matroska.org if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+/*!
+ \file
+ \version \$Id: EbmlElement.h 1232 2005-10-15 15:56:52Z robux4 $
+ \author Steve Lhomme <robux4 @ users.sf.net>
+*/
+#ifndef LIBEBML_ELEMENT_H
+#define LIBEBML_ELEMENT_H
+
+#include "EbmlTypes.h"
+#include "EbmlId.h"
+#include "IOCallback.h"
+
+START_LIBEBML_NAMESPACE
+
+/*!
+ \brief The size of the EBML-coded length
+*/
+int EBML_DLL_API CodedSizeLength(uint64 Length, unsigned int SizeLength, bool bSizeIsFinite = true);
+
+/*!
+ \brief The coded value of the EBML-coded length
+ \note The size of OutBuffer must be 8 octets at least
+*/
+int EBML_DLL_API CodedValueLength(uint64 Length, int CodedSize, binary * OutBuffer);
+
+/*!
+ \brief Read an EBML-coded value from a buffer
+ \return the value read
+*/
+uint64 EBML_DLL_API ReadCodedSizeValue(const binary * InBuffer, uint32 & BufferSize, uint64 & SizeUnknown);
+
+/*!
+ \brief The size of the EBML-coded signed length
+*/
+int EBML_DLL_API CodedSizeLengthSigned(int64 Length, unsigned int SizeLength);
+
+/*!
+ \brief The coded value of the EBML-coded signed length
+ \note the size of OutBuffer must be 8 octets at least
+*/
+int EBML_DLL_API CodedValueLengthSigned(int64 Length, int CodedSize, binary * OutBuffer);
+
+/*!
+ \brief Read a signed EBML-coded value from a buffer
+ \return the value read
+*/
+int64 EBML_DLL_API ReadCodedSizeSignedValue(const binary * InBuffer, uint32 & BufferSize, uint64 & SizeUnknown);
+
+class EbmlStream;
+class EbmlSemanticContext;
+class EbmlElement;
+
+extern const EbmlSemanticContext Context_EbmlGlobal;
+
+#define DEFINE_xxx_CONTEXT(x,global) \
+ const EbmlSemanticContext Context_##x = EbmlSemanticContext(countof(ContextList_##x), ContextList_##x, NULL, global, NULL); \
+
+#define DEFINE_xxx_MASTER(x,id,idl,parent,name,global) \
+ const EbmlId Id_##x (id, idl); \
+ const EbmlSemanticContext Context_##x = EbmlSemanticContext(countof(ContextList_##x), ContextList_##x, &Context_##parent, global, &EBML_INFO(x)); \
+ const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_##x); \
+
+#define DEFINE_xxx_MASTER_ORPHAN(x,id,idl,name,global) \
+ const EbmlId Id_##x (id, idl); \
+ const EbmlSemanticContext Context_##x = EbmlSemanticContext(countof(ContextList_##x), ContextList_##x, NULL, global, &EBML_INFO(x)); \
+ const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_##x); \
+
+#define DEFINE_xxx_CLASS(x,id,idl,parent,name,global) \
+ const EbmlId Id_##x (id, idl); \
+ const EbmlSemanticContext Context_##x = EbmlSemanticContext(0, NULL, &Context_##parent, global, &EBML_INFO(x)); \
+ const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_##x); \
+
+#define DEFINE_xxx_CLASS_GLOBAL(x,id,idl,name,global) \
+ const EbmlId Id_##x (id, idl); \
+ const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_EbmlGlobal); \
+
+#define DEFINE_xxx_CLASS_ORPHAN(x,id,idl,name,global) \
+ const EbmlId Id_##x (id, idl); \
+ const EbmlSemanticContext Context_##x = EbmlSemanticContext(0, NULL, NULL, global, &EBML_INFO(x)); \
+ const EbmlCallbacks x::ClassInfos(x::Create, Id_##x, name, Context_##x); \
+
+#define DEFINE_EBML_CONTEXT(x) DEFINE_xxx_CONTEXT(x,*GetEbmlGlobal_Context)
+#define DEFINE_EBML_MASTER(x,id,idl,parent,name) DEFINE_xxx_MASTER(x,id,idl,parent,name,*GetEbmlGlobal_Context)
+#define DEFINE_EBML_MASTER_ORPHAN(x,id,idl,name) DEFINE_xxx_MASTER_ORPHAN(x,id,idl,name,*GetEbmlGlobal_Context)
+#define DEFINE_EBML_CLASS(x,id,idl,parent,name) DEFINE_xxx_CLASS(x,id,idl,parent,name,*GetEbmlGlobal_Context)
+#define DEFINE_EBML_CLASS_GLOBAL(x,id,idl,name) DEFINE_xxx_CLASS_GLOBAL(x,id,idl,name,*GetEbmlGlobal_Context)
+#define DEFINE_EBML_CLASS_ORPHAN(x,id,idl,name) DEFINE_xxx_CLASS_ORPHAN(x,id,idl,name,*GetEbmlGlobal_Context)
+
+
+#if defined(EBML_STRICT_API)
+#define EBML_CONCRETE_CLASS(Type) \
+ public: \
+ virtual const EbmlSemanticContext &Context() const {return ClassInfos.GetContext();} \
+ virtual const char *DebugName() const {return ClassInfos.GetName();} \
+ virtual operator const EbmlId &() const {return ClassInfos.ClassId();} \
+ virtual EbmlElement & CreateElement() const {return Create();} \
+ virtual EbmlElement * Clone() const { return new Type(*this); } \
+ static EbmlElement & Create() {return *(new Type);} \
+ static const EbmlCallbacks & ClassInfo() {return ClassInfos;} \
+ static const EbmlId & ClassId() {return ClassInfos.ClassId();} \
+ private: \
+ static const EbmlCallbacks ClassInfos; \
+
+
+#define EBML_INFO(ref) ref::ClassInfo()
+#define EBML_ID(ref) ref::ClassId()
+#define EBML_CONTEXT(e) (e)->Context()
+#define EBML_NAME(e) (e)->DebugName()
+
+#define EBML_INFO_ID(cb) (cb).ClassId()
+#define EBML_INFO_NAME(cb) (cb).GetName()
+#define EBML_INFO_CREATE(cb) (cb).NewElement()
+#define EBML_INFO_CONTEXT(cb) (cb).GetContext()
+
+#define EBML_SEM_UNIQUE(s) (s).IsUnique()
+#define EBML_SEM_INFO(s) (const EbmlCallbacks &)(s)
+#define EBML_SEM_ID(s) ((const EbmlCallbacks &)(s)).ClassId()
+#define EBML_SEM_CONTEXT(s) ((const EbmlCallbacks &)(s)).GetContext()
+#define EBML_SEM_CREATE(s) (s).Create()
+
+#define EBML_CTX_SIZE(c) (c).GetSize()
+#define EBML_CTX_MASTER(c) (c).GetMaster()
+#define EBML_CTX_PARENT(c) (c).Parent()
+#else
+#define EBML_CONCRETE_CLASS(Type) \
+ public: \
+ virtual const EbmlCallbacks & Generic() const {return ClassInfos;} \
+ virtual operator const EbmlId &() const {return ClassInfos.GlobalId;} \
+ virtual EbmlElement & CreateElement() const {return Create();} \
+ virtual EbmlElement * Clone() const { return new Type(*this); } \
+ static EbmlElement & Create() {return *(new Type);} \
+ static const EbmlCallbacks ClassInfos; \
+
+#define EBML_INFO(ref) ref::ClassInfos
+#define EBML_ID(ref) ref::ClassInfos.GlobalId
+#define EBML_CONTEXT(e) (e)->Generic().Context
+#define EBML_NAME(e) (e)->Generic().DebugName
+
+#define EBML_INFO_ID(cb) (cb).GlobalId
+#define EBML_INFO_NAME(cb) (cb).DebugName
+#define EBML_INFO_CREATE(cb) (cb).Create()
+#define EBML_INFO_CONTEXT(cb) (cb).Context
+
+#define EBML_SEM_UNIQUE(s) (s).Unique
+#define EBML_SEM_INFO(s) (s).GetCallbacks
+#define EBML_SEM_ID(s) (s).GetCallbacks.GlobalId
+#define EBML_SEM_CONTEXT(s) (s).GetCallbacks.Context
+#define EBML_SEM_CREATE(s) (s).Create()
+
+#define EBML_CTX_SIZE(c) (c).Size
+#define EBML_CTX_MASTER(c) (c).MasterElt
+#define EBML_CTX_PARENT(c) (c).UpTable
+#endif
+
+// functions for generic handling of data (should be static to all classes)
+/*!
+ \todo Handle default value
+*/
+class EBML_DLL_API EbmlCallbacks {
+ public:
+ EbmlCallbacks(EbmlElement & (*Creator)(), const EbmlId & aGlobalId, const char * aDebugName, const EbmlSemanticContext & aContext);
+
+ inline const EbmlId & ClassId() const { return GlobalId; }
+ inline const EbmlSemanticContext & GetContext() const { return Context; }
+ inline const char * GetName() const { return DebugName; }
+ inline EbmlElement & NewElement() const { return Create(); }
+
+#if defined(EBML_STRICT_API)
+ private:
+#endif
+ EbmlElement & (*Create)();
+ const EbmlId & GlobalId;
+ const char * DebugName;
+ const EbmlSemanticContext & Context;
+};
+
+/*!
+ \brief contains the semantic informations for a given level and all sublevels
+ \todo move the ID in the element class
+*/
+class EBML_DLL_API EbmlSemantic {
+ public:
+ EbmlSemantic(bool aMandatory, bool aUnique, const EbmlCallbacks & aGetCallbacks)
+ :Mandatory(aMandatory), Unique(aUnique), GetCallbacks(aGetCallbacks) {}
+
+ inline bool IsMandatory() const { return Mandatory; }
+ inline bool IsUnique() const { return Unique; }
+ inline EbmlElement & Create() const { return EBML_INFO_CREATE(GetCallbacks); }
+ inline operator const EbmlCallbacks &() { return GetCallbacks; }
+
+#if defined(EBML_STRICT_API)
+ private:
+#endif
+ bool Mandatory; ///< wether the element is mandatory in the context or not
+ bool Unique;
+ const EbmlCallbacks & GetCallbacks;
+};
+
+typedef const class EbmlSemanticContext & (*_GetSemanticContext)();
+
+/*!
+ Context of the element
+ \todo allow more than one parent ?
+*/
+class EBML_DLL_API EbmlSemanticContext {
+ public:
+ EbmlSemanticContext(size_t aSize,
+ const EbmlSemantic *aMyTable,
+ const EbmlSemanticContext *aUpTable,
+ const _GetSemanticContext aGetGlobalContext,
+ const EbmlCallbacks *aMasterElt)
+ : MyTable(aMyTable), GetGlobalContext(aGetGlobalContext), Size(aSize),
+ UpTable(aUpTable), MasterElt(aMasterElt) {}
+
+ bool operator!=(const EbmlSemanticContext & aElt) const {
+ return ((Size != aElt.Size) || (MyTable != aElt.MyTable) ||
+ (UpTable != aElt.UpTable) || (GetGlobalContext != aElt.GetGlobalContext) |
+ (MasterElt != aElt.MasterElt));
+ }
+
+ inline size_t GetSize() const { return Size; }
+ inline const EbmlCallbacks* GetMaster() const { return MasterElt; }
+ inline const EbmlSemanticContext* Parent() const { return UpTable; }
+
+ const EbmlSemantic *MyTable; ///< First element in the table
+ const _GetSemanticContext GetGlobalContext; ///< global elements supported at this level
+
+#if defined(EBML_STRICT_API)
+ private:
+#endif
+ size_t Size; ///< number of elements in the table
+ const EbmlSemanticContext *UpTable; ///< Parent element
+ /// \todo replace with the global context directly
+ const EbmlCallbacks *MasterElt;
+};
+
+/*!
+ \class EbmlElement
+ \brief Hold basic informations about an EBML element (ID + length)
+*/
+class EBML_DLL_API EbmlElement {
+ public:
+ EbmlElement(uint64 aDefaultSize, bool bValueSet = false);
+ virtual ~EbmlElement();
+
+ /// Set the minimum length that will be used to write the element size (-1 = optimal)
+ void SetSizeLength(int NewSizeLength) {SizeLength = NewSizeLength;}
+ int GetSizeLength() const {return SizeLength;}
+
+ static EbmlElement * FindNextElement(IOCallback & DataStream, const EbmlSemanticContext & Context, int & UpperLevel, uint64 MaxDataSize, bool AllowDummyElt, unsigned int MaxLowerLevel = 1);
+ static EbmlElement * FindNextID(IOCallback & DataStream, const EbmlCallbacks & ClassInfos, const uint64 MaxDataSize);
+
+ /*!
+ \brief find the next element with the same ID
+ */
+ EbmlElement * FindNext(IOCallback & DataStream, const uint64 MaxDataSize);
+
+ EbmlElement * SkipData(EbmlStream & DataStream, const EbmlSemanticContext & Context, EbmlElement * TestReadElt = NULL, bool AllowDummyElt = false);
+
+ /*!
+ \brief Give a copy of the element, all data inside the element is copied
+ \return NULL if there is not enough memory
+ */
+ virtual EbmlElement * Clone() const = 0;
+
+ virtual operator const EbmlId &() const = 0;
+#if defined(EBML_STRICT_API)
+ virtual const char *DebugName() const = 0;
+ virtual const EbmlSemanticContext &Context() const = 0;
+#else
+ /// return the generic callback to monitor a derived class
+ virtual const EbmlCallbacks & Generic() const = 0;
+#endif
+ virtual EbmlElement & CreateElement() const = 0;
+
+ // by default only allow to set element as finite (override when needed)
+ virtual bool SetSizeInfinite(bool bIsInfinite = true) {return !bIsInfinite;}
+
+ virtual bool ValidateSize() const = 0;
+
+ uint64 GetElementPosition() const {
+ return ElementPosition;
+ }
+
+ uint64 ElementSize(bool bKeepIntact = false) const; /// return the size of the header+data, before writing
+
+ filepos_t Render(IOCallback & output, bool bKeepIntact = false, bool bKeepPosition = false, bool bForceRender = false);
+
+ virtual filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false) = 0; /// update the Size of the Data stored
+ virtual filepos_t GetSize() const {return Size;} /// return the size of the data stored in the element, on reading
+
+ virtual filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA) = 0;
+ virtual void Read(EbmlStream & inDataStream, const EbmlSemanticContext & Context, int & UpperEltFound, EbmlElement * & FoundElt, bool AllowDummyElt = false, ScopeMode ReadFully = SCOPE_ALL_DATA);
+
+ bool IsLocked() const {return bLocked;}
+ void Lock(bool bLock = true) { bLocked = bLock;}
+
+ /*!
+ \brief default comparison for elements that can't be compared
+ */
+ virtual bool IsSmallerThan(const EbmlElement *Cmp) const;
+ static bool CompareElements(const EbmlElement *A, const EbmlElement *B);
+
+ virtual bool IsDummy() const {return false;}
+ virtual bool IsMaster() const {return false;}
+
+ uint8 HeadSize() const {
+ return EBML_ID_LENGTH(EbmlId(*this)) + CodedSizeLength(Size, SizeLength, bSizeIsFinite);
+ } /// return the size of the head, on reading/writing
+
+ /*!
+ \brief Force the size of an element
+ \warning only possible if the size is "undefined"
+ */
+ bool ForceSize(uint64 NewSize);
+
+ filepos_t OverwriteHead(IOCallback & output, bool bKeepPosition = false);
+
+ /*!
+ \brief void the content of the element (replace by EbmlVoid)
+ */
+ uint32 VoidMe(IOCallback & output, bool bKeepIntact = false);
+
+ bool DefaultISset() const {return DefaultIsSet;}
+ virtual bool IsDefaultValue() const = 0;
+ bool IsFiniteSize() const {return bSizeIsFinite;}
+
+ /*!
+ \brief set the default size of an element
+ */
+ virtual void SetDefaultSize(uint64 aDefaultSize) {DefaultSize = aDefaultSize;}
+
+ bool ValueIsSet() const {return bValueIsSet;}
+
+ inline uint64 GetEndPosition() const {
+ return SizePosition + CodedSizeLength(Size, SizeLength, bSizeIsFinite) + Size;
+ }
+
+ protected:
+ /*!
+ \brief find any element in the stream
+ \return a DummyRawElement if the element is unknown or NULL if the element dummy is not allowed
+ */
+ static EbmlElement *CreateElementUsingContext(const EbmlId & aID, const EbmlSemanticContext & Context, int & LowLevel, bool IsGlobalContext, bool bAllowDummy = false, unsigned int MaxLowerLevel = 1);
+
+ filepos_t RenderHead(IOCallback & output, bool bForceRender, bool bKeepIntact = false, bool bKeepPosition = false);
+ filepos_t MakeRenderHead(IOCallback & output, bool bKeepPosition);
+
+ /*!
+ \brief prepare the data before writing them (in case it's not already done by default)
+ */
+ virtual filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false) = 0;
+
+ /*!
+ \brief special constructor for cloning
+ */
+ EbmlElement(const EbmlElement & ElementToClone);
+
+ inline uint64 GetDefaultSize() const {return DefaultSize;}
+ inline void SetSize_(uint64 aSize) {Size = aSize;}
+ inline void SetValueIsSet(bool Set = true) {bValueIsSet = Set;}+ inline void SetDefaultIsSet(bool Set = true) {DefaultIsSet = Set;}
+ inline void SetSizeIsFinite(bool Set = true) {bSizeIsFinite = Set;}
+ inline uint64 GetSizePosition() const {return SizePosition;}
+
+#if defined(EBML_STRICT_API)
+ private:
+#endif
+ uint64 Size; ///< the size of the data to write
+ uint64 DefaultSize; ///< Minimum data size to fill on rendering (0 = optimal)
+ int SizeLength; /// the minimum size on which the size will be written (0 = optimal)
+ bool bSizeIsFinite;
+ uint64 ElementPosition;
+ uint64 SizePosition;
+ bool bValueIsSet;
+ bool DefaultIsSet;
+ bool bLocked;
+};
+
+END_LIBEBML_NAMESPACE
+
+#endif // LIBEBML_ELEMENT_H
diff --git a/src/EbmlCrc32.cpp b/src/EbmlCrc32.cpp
index 265cc10..45b0e74 100644
--- a/src/EbmlCrc32.cpp
+++ b/src/EbmlCrc32.cpp
@@ -1,333 +1,333 @@
-/****************************************************************************
-** libebml : parse EBML files, see http://embl.sourceforge.net/
-**
-** <file/class description>
-**
-** Copyright (C) 2002-2010 Steve Lhomme. All rights reserved.
-**
-** This file is part of libebml.
-**
-** This library is free software; you can redistribute it and/or
-** modify it under the terms of the GNU Lesser General Public
-** License as published by the Free Software Foundation; either
-** version 2.1 of the License, or (at your option) any later version.
-**
-** 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
-**
-** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
-**
-** Contact license@matroska.org if any conditions of this licensing are
-** not clear to you.
-**
-**********************************************************************/
-
-/*!
- \file
- \version \$Id: EbmlCrc32.cpp 1155 2005-05-06 11:43:38Z robux4 $
- \author Steve Lhomme <robux4 @ users.sf.net>
- \author Jory Stone <jcsston @ toughguy.net>
-*/
-#include "ebml/EbmlCrc32.h"
-#include "ebml/EbmlContexts.h"
-#include "ebml/MemIOCallback.h"
-
-START_LIBEBML_NAMESPACE
-
-DEFINE_EBML_CLASS_GLOBAL(EbmlCrc32, 0xBF, 1, "EBMLCrc32\0ratamadabapa");
-
-const uint32 EbmlCrc32::m_tab[] = {
-#ifdef WORDS_BIGENDIAN
- 0x00000000L, 0x96300777L, 0x2c610eeeL, 0xba510999L, 0x19c46d07L,
- 0x8ff46a70L, 0x35a563e9L, 0xa395649eL, 0x3288db0eL, 0xa4b8dc79L,
- 0x1ee9d5e0L, 0x88d9d297L, 0x2b4cb609L, 0xbd7cb17eL, 0x072db8e7L,
- 0x911dbf90L, 0x6410b71dL, 0xf220b06aL, 0x4871b9f3L, 0xde41be84L,
- 0x7dd4da1aL, 0xebe4dd6dL, 0x51b5d4f4L, 0xc785d383L, 0x56986c13L,
- 0xc0a86b64L, 0x7af962fdL, 0xecc9658aL, 0x4f5c0114L, 0xd96c0663L,
- 0x633d0ffaL, 0xf50d088dL, 0xc8206e3bL, 0x5e10694cL, 0xe44160d5L,
- 0x727167a2L, 0xd1e4033cL, 0x47d4044bL, 0xfd850dd2L, 0x6bb50aa5L,
- 0xfaa8b535L, 0x6c98b242L, 0xd6c9bbdbL, 0x40f9bcacL, 0xe36cd832L,
- 0x755cdf45L, 0xcf0dd6dcL, 0x593dd1abL, 0xac30d926L, 0x3a00de51L,
- 0x8051d7c8L, 0x1661d0bfL, 0xb5f4b421L, 0x23c4b356L, 0x9995bacfL,
- 0x0fa5bdb8L, 0x9eb80228L, 0x0888055fL, 0xb2d90cc6L, 0x24e90bb1L,
- 0x877c6f2fL, 0x114c6858L, 0xab1d61c1L, 0x3d2d66b6L, 0x9041dc76L,
- 0x0671db01L, 0xbc20d298L, 0x2a10d5efL, 0x8985b171L, 0x1fb5b606L,
- 0xa5e4bf9fL, 0x33d4b8e8L, 0xa2c90778L, 0x34f9000fL, 0x8ea80996L,
- 0x18980ee1L, 0xbb0d6a7fL, 0x2d3d6d08L, 0x976c6491L, 0x015c63e6L,
- 0xf4516b6bL, 0x62616c1cL, 0xd8306585L, 0x4e0062f2L, 0xed95066cL,
- 0x7ba5011bL, 0xc1f40882L, 0x57c40ff5L, 0xc6d9b065L, 0x50e9b712L,
- 0xeab8be8bL, 0x7c88b9fcL, 0xdf1ddd62L, 0x492dda15L, 0xf37cd38cL,
- 0x654cd4fbL, 0x5861b24dL, 0xce51b53aL, 0x7400bca3L, 0xe230bbd4L,
- 0x41a5df4aL, 0xd795d83dL, 0x6dc4d1a4L, 0xfbf4d6d3L, 0x6ae96943L,
- 0xfcd96e34L, 0x468867adL, 0xd0b860daL, 0x732d0444L, 0xe51d0333L,
- 0x5f4c0aaaL, 0xc97c0dddL, 0x3c710550L, 0xaa410227L, 0x10100bbeL,
- 0x86200cc9L, 0x25b56857L, 0xb3856f20L, 0x09d466b9L, 0x9fe461ceL,
- 0x0ef9de5eL, 0x98c9d929L, 0x2298d0b0L, 0xb4a8d7c7L, 0x173db359L,
- 0x810db42eL, 0x3b5cbdb7L, 0xad6cbac0L, 0x2083b8edL, 0xb6b3bf9aL,
- 0x0ce2b603L, 0x9ad2b174L, 0x3947d5eaL, 0xaf77d29dL, 0x1526db04L,
- 0x8316dc73L, 0x120b63e3L, 0x843b6494L, 0x3e6a6d0dL, 0xa85a6a7aL,
- 0x0bcf0ee4L, 0x9dff0993L, 0x27ae000aL, 0xb19e077dL, 0x44930ff0L,
- 0xd2a30887L, 0x68f2011eL, 0xfec20669L, 0x5d5762f7L, 0xcb676580L,
- 0x71366c19L, 0xe7066b6eL, 0x761bd4feL, 0xe02bd389L, 0x5a7ada10L,
- 0xcc4add67L, 0x6fdfb9f9L, 0xf9efbe8eL, 0x43beb717L, 0xd58eb060L,
- 0xe8a3d6d6L, 0x7e93d1a1L, 0xc4c2d838L, 0x52f2df4fL, 0xf167bbd1L,
- 0x6757bca6L, 0xdd06b53fL, 0x4b36b248L, 0xda2b0dd8L, 0x4c1b0aafL,
- 0xf64a0336L, 0x607a0441L, 0xc3ef60dfL, 0x55df67a8L, 0xef8e6e31L,
- 0x79be6946L, 0x8cb361cbL, 0x1a8366bcL, 0xa0d26f25L, 0x36e26852L,
- 0x95770cccL, 0x03470bbbL, 0xb9160222L, 0x2f260555L, 0xbe3bbac5L,
- 0x280bbdb2L, 0x925ab42bL, 0x046ab35cL, 0xa7ffd7c2L, 0x31cfd0b5L,
- 0x8b9ed92cL, 0x1daede5bL, 0xb0c2649bL, 0x26f263ecL, 0x9ca36a75L,
- 0x0a936d02L, 0xa906099cL, 0x3f360eebL, 0x85670772L, 0x13570005L,
- 0x824abf95L, 0x147ab8e2L, 0xae2bb17bL, 0x381bb60cL, 0x9b8ed292L,
- 0x0dbed5e5L, 0xb7efdc7cL, 0x21dfdb0bL, 0xd4d2d386L, 0x42e2d4f1L,
- 0xf8b3dd68L, 0x6e83da1fL, 0xcd16be81L, 0x5b26b9f6L, 0xe177b06fL,
- 0x7747b718L, 0xe65a0888L, 0x706a0fffL, 0xca3b0666L, 0x5c0b0111L,
- 0xff9e658fL, 0x69ae62f8L, 0xd3ff6b61L, 0x45cf6c16L, 0x78e20aa0L,
- 0xeed20dd7L, 0x5483044eL, 0xc2b30339L, 0x612667a7L, 0xf71660d0L,
- 0x4d476949L, 0xdb776e3eL, 0x4a6ad1aeL, 0xdc5ad6d9L, 0x660bdf40L,
- 0xf03bd837L, 0x53aebca9L, 0xc59ebbdeL, 0x7fcfb247L, 0xe9ffb530L,
- 0x1cf2bdbdL, 0x8ac2bacaL, 0x3093b353L, 0xa6a3b424L, 0x0536d0baL,
- 0x9306d7cdL, 0x2957de54L, 0xbf67d923L, 0x2e7a66b3L, 0xb84a61c4L,
- 0x021b685dL, 0x942b6f2aL, 0x37be0bb4L, 0xa18e0cc3L, 0x1bdf055aL,
- 0x8def022dL
-#else
- 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
- 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
- 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
- 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
- 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
- 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
- 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
- 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
- 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
- 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
- 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
- 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
- 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
- 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
- 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
- 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
- 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
- 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
- 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
- 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
- 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
- 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
- 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
- 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
- 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
- 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
- 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
- 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
- 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
- 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
- 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
- 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
- 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
- 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
- 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
- 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
- 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
- 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
- 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
- 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
- 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
- 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
- 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
- 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
- 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
- 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
- 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
- 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
- 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
- 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
- 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
- 0x2d02ef8dL
-#endif
-};
-
-EbmlCrc32::EbmlCrc32()
-{
- ResetCRC();
- SetDefaultSize(DIGESTSIZE);
- m_crc_final = 0;
- SetSize_(4);
- //This EbmlElement has been set
-// SetValueIsSet();
-}
-
-EbmlCrc32::EbmlCrc32(const EbmlCrc32 & ElementToClone)
-:EbmlBinary(ElementToClone)
-{
- m_crc = ElementToClone.m_crc;
- m_crc_final = ElementToClone.m_crc_final;
-}
-
-void EbmlCrc32::AddElementCRC32(EbmlElement &ElementToCRC)
-{
- // Use a special IOCallback class that Render's to memory instead of to disk
- MemIOCallback memoryBuffer;
- ElementToCRC.Render(memoryBuffer, true, true);
-
- Update(memoryBuffer.GetDataBuffer(), memoryBuffer.GetDataBufferSize());
-// Finalize();
-};
-
-bool EbmlCrc32::CheckElementCRC32(EbmlElement &ElementToCRC)
-{
- MemIOCallback memoryBuffer;
- ElementToCRC.Render(memoryBuffer);
-
- return CheckCRC(m_crc_final, memoryBuffer.GetDataBuffer(), memoryBuffer.GetDataBufferSize());
-};
-
-filepos_t EbmlCrc32::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
-{
- filepos_t Result = DIGESTSIZE;
-
- if (Result != 0) {
- output.writeFully(&m_crc_final, Result);
- }
-
- if (Result < GetDefaultSize()) {
- // pad the rest with 0
- binary *Pad = new binary[GetDefaultSize() - Result];
- if (Pad != NULL) {
- memset(Pad, 0x00, GetDefaultSize() - Result);
- output.writeFully(Pad, GetDefaultSize() - Result);
-
- Result = GetDefaultSize();
- delete [] Pad;
- }
- }
-
- return Result;
-}
-
-filepos_t EbmlCrc32::ReadData(IOCallback & input, ScopeMode ReadFully)
-{
- if (ReadFully != SCOPE_NO_DATA)
- {
- binary *Buffer = new binary[GetSize()];
- if (Buffer == NULL) {
- // impossible to read, skip it
- input.setFilePointer(GetSize(), seek_current);
- } else {
- input.readFully(Buffer, GetSize());
-
- memcpy((void *)&m_crc_final, Buffer, 4);
- delete [] Buffer;
- SetValueIsSet();
- }
- }
-
- return GetSize();
-}
-
-bool EbmlCrc32::CheckCRC(uint32 inputCRC, const binary *input, uint32 length)
-{
- uint32 crc = CRC32_NEGL;
-
- for(; !IsAligned<uint32>(input) && length > 0; length--)
- crc = m_tab[CRC32_INDEX(crc) ^ *input++] ^ CRC32_SHIFTED(crc);
-
- while (length >= 4)
- {
- crc ^= *(const uint32 *)input;
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- length -= 4;
- input += 4;
- }
-
- while (length--)
- crc = m_tab[CRC32_INDEX(crc) ^ *input++] ^ CRC32_SHIFTED(crc);
-
- //Now we finalize the CRC32
- crc ^= CRC32_NEGL;
-
- if (crc == inputCRC)
- return true;
-
- return false;
-};
-
-void EbmlCrc32::FillCRC32(const binary *s, uint32 n)
-{
- ResetCRC();
- Update(s, n);
- Finalize();
-
- /*uint32 crc = CRC32_NEGL;
-
- for(; !IsAligned<uint32>(s) && n > 0; n--)
- crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
-
- while (n >= 4)
- {
- crc ^= *(const uint32 *)s;
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- n -= 4;
- s += 4;
- }
-
- while (n--)
- crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
-
- m_crc = crc;
-
- //Now we finalize the CRC32
- m_crc ^= CRC32_NEGL;
- //for (unsigned int i = 0; i < 4; i++)
- // (&last_crc32)[i] = GetCrcByte(i);*/
-
-}
-
-void EbmlCrc32::Update(const binary *input, uint32 length)
-{
- uint32 crc = m_crc;
-
- for(; !IsAligned<uint32>(input) && length > 0; length--)
- crc = m_tab[CRC32_INDEX(crc) ^ *input++] ^ CRC32_SHIFTED(crc);
-
- while (length >= 4)
- {
- crc ^= *(const uint32 *)input;
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
- length -= 4;
- input += 4;
- }
-
- while (length--)
- crc = m_tab[CRC32_INDEX(crc) ^ *input++] ^ CRC32_SHIFTED(crc);
-
- m_crc = crc;
-}
-
-void EbmlCrc32::Finalize()
-{
- //Finalize the CRC32
- m_crc ^= CRC32_NEGL;
- //Copy it over to completed CRC32 memeber
- m_crc_final = m_crc;
- //Reset the holding CRC member (m_crc)
- ResetCRC();
- //This EbmlElement has been set
- SetValueIsSet();
-}
-
-END_LIBEBML_NAMESPACE
+/****************************************************************************
+** libebml : parse EBML files, see http://embl.sourceforge.net/
+**
+** <file/class description>
+**
+** Copyright (C) 2002-2010 Steve Lhomme. All rights reserved.
+**
+** This file is part of libebml.
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Lesser General Public
+** License as published by the Free Software Foundation; either
+** version 2.1 of the License, or (at your option) any later version.
+**
+** 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
+**
+** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
+**
+** Contact license@matroska.org if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+/*!
+ \file
+ \version \$Id: EbmlCrc32.cpp 1155 2005-05-06 11:43:38Z robux4 $
+ \author Steve Lhomme <robux4 @ users.sf.net>
+ \author Jory Stone <jcsston @ toughguy.net>
+*/
+#include "ebml/EbmlCrc32.h"
+#include "ebml/EbmlContexts.h"
+#include "ebml/MemIOCallback.h"
+
+START_LIBEBML_NAMESPACE
+
+DEFINE_EBML_CLASS_GLOBAL(EbmlCrc32, 0xBF, 1, "EBMLCrc32\0ratamadabapa");
+
+const uint32 EbmlCrc32::m_tab[] = {
+#ifdef WORDS_BIGENDIAN
+ 0x00000000L, 0x96300777L, 0x2c610eeeL, 0xba510999L, 0x19c46d07L,
+ 0x8ff46a70L, 0x35a563e9L, 0xa395649eL, 0x3288db0eL, 0xa4b8dc79L,
+ 0x1ee9d5e0L, 0x88d9d297L, 0x2b4cb609L, 0xbd7cb17eL, 0x072db8e7L,
+ 0x911dbf90L, 0x6410b71dL, 0xf220b06aL, 0x4871b9f3L, 0xde41be84L,
+ 0x7dd4da1aL, 0xebe4dd6dL, 0x51b5d4f4L, 0xc785d383L, 0x56986c13L,
+ 0xc0a86b64L, 0x7af962fdL, 0xecc9658aL, 0x4f5c0114L, 0xd96c0663L,
+ 0x633d0ffaL, 0xf50d088dL, 0xc8206e3bL, 0x5e10694cL, 0xe44160d5L,
+ 0x727167a2L, 0xd1e4033cL, 0x47d4044bL, 0xfd850dd2L, 0x6bb50aa5L,
+ 0xfaa8b535L, 0x6c98b242L, 0xd6c9bbdbL, 0x40f9bcacL, 0xe36cd832L,
+ 0x755cdf45L, 0xcf0dd6dcL, 0x593dd1abL, 0xac30d926L, 0x3a00de51L,
+ 0x8051d7c8L, 0x1661d0bfL, 0xb5f4b421L, 0x23c4b356L, 0x9995bacfL,
+ 0x0fa5bdb8L, 0x9eb80228L, 0x0888055fL, 0xb2d90cc6L, 0x24e90bb1L,
+ 0x877c6f2fL, 0x114c6858L, 0xab1d61c1L, 0x3d2d66b6L, 0x9041dc76L,
+ 0x0671db01L, 0xbc20d298L, 0x2a10d5efL, 0x8985b171L, 0x1fb5b606L,
+ 0xa5e4bf9fL, 0x33d4b8e8L, 0xa2c90778L, 0x34f9000fL, 0x8ea80996L,
+ 0x18980ee1L, 0xbb0d6a7fL, 0x2d3d6d08L, 0x976c6491L, 0x015c63e6L,
+ 0xf4516b6bL, 0x62616c1cL, 0xd8306585L, 0x4e0062f2L, 0xed95066cL,
+ 0x7ba5011bL, 0xc1f40882L, 0x57c40ff5L, 0xc6d9b065L, 0x50e9b712L,
+ 0xeab8be8bL, 0x7c88b9fcL, 0xdf1ddd62L, 0x492dda15L, 0xf37cd38cL,
+ 0x654cd4fbL, 0x5861b24dL, 0xce51b53aL, 0x7400bca3L, 0xe230bbd4L,
+ 0x41a5df4aL, 0xd795d83dL, 0x6dc4d1a4L, 0xfbf4d6d3L, 0x6ae96943L,
+ 0xfcd96e34L, 0x468867adL, 0xd0b860daL, 0x732d0444L, 0xe51d0333L,
+ 0x5f4c0aaaL, 0xc97c0dddL, 0x3c710550L, 0xaa410227L, 0x10100bbeL,
+ 0x86200cc9L, 0x25b56857L, 0xb3856f20L, 0x09d466b9L, 0x9fe461ceL,
+ 0x0ef9de5eL, 0x98c9d929L, 0x2298d0b0L, 0xb4a8d7c7L, 0x173db359L,
+ 0x810db42eL, 0x3b5cbdb7L, 0xad6cbac0L, 0x2083b8edL, 0xb6b3bf9aL,
+ 0x0ce2b603L, 0x9ad2b174L, 0x3947d5eaL, 0xaf77d29dL, 0x1526db04L,
+ 0x8316dc73L, 0x120b63e3L, 0x843b6494L, 0x3e6a6d0dL, 0xa85a6a7aL,
+ 0x0bcf0ee4L, 0x9dff0993L, 0x27ae000aL, 0xb19e077dL, 0x44930ff0L,
+ 0xd2a30887L, 0x68f2011eL, 0xfec20669L, 0x5d5762f7L, 0xcb676580L,
+ 0x71366c19L, 0xe7066b6eL, 0x761bd4feL, 0xe02bd389L, 0x5a7ada10L,
+ 0xcc4add67L, 0x6fdfb9f9L, 0xf9efbe8eL, 0x43beb717L, 0xd58eb060L,
+ 0xe8a3d6d6L, 0x7e93d1a1L, 0xc4c2d838L, 0x52f2df4fL, 0xf167bbd1L,
+ 0x6757bca6L, 0xdd06b53fL, 0x4b36b248L, 0xda2b0dd8L, 0x4c1b0aafL,
+ 0xf64a0336L, 0x607a0441L, 0xc3ef60dfL, 0x55df67a8L, 0xef8e6e31L,
+ 0x79be6946L, 0x8cb361cbL, 0x1a8366bcL, 0xa0d26f25L, 0x36e26852L,
+ 0x95770cccL, 0x03470bbbL, 0xb9160222L, 0x2f260555L, 0xbe3bbac5L,
+ 0x280bbdb2L, 0x925ab42bL, 0x046ab35cL, 0xa7ffd7c2L, 0x31cfd0b5L,
+ 0x8b9ed92cL, 0x1daede5bL, 0xb0c2649bL, 0x26f263ecL, 0x9ca36a75L,
+ 0x0a936d02L, 0xa906099cL, 0x3f360eebL, 0x85670772L, 0x13570005L,
+ 0x824abf95L, 0x147ab8e2L, 0xae2bb17bL, 0x381bb60cL, 0x9b8ed292L,
+ 0x0dbed5e5L, 0xb7efdc7cL, 0x21dfdb0bL, 0xd4d2d386L, 0x42e2d4f1L,
+ 0xf8b3dd68L, 0x6e83da1fL, 0xcd16be81L, 0x5b26b9f6L, 0xe177b06fL,
+ 0x7747b718L, 0xe65a0888L, 0x706a0fffL, 0xca3b0666L, 0x5c0b0111L,
+ 0xff9e658fL, 0x69ae62f8L, 0xd3ff6b61L, 0x45cf6c16L, 0x78e20aa0L,
+ 0xeed20dd7L, 0x5483044eL, 0xc2b30339L, 0x612667a7L, 0xf71660d0L,
+ 0x4d476949L, 0xdb776e3eL, 0x4a6ad1aeL, 0xdc5ad6d9L, 0x660bdf40L,
+ 0xf03bd837L, 0x53aebca9L, 0xc59ebbdeL, 0x7fcfb247L, 0xe9ffb530L,
+ 0x1cf2bdbdL, 0x8ac2bacaL, 0x3093b353L, 0xa6a3b424L, 0x0536d0baL,
+ 0x9306d7cdL, 0x2957de54L, 0xbf67d923L, 0x2e7a66b3L, 0xb84a61c4L,
+ 0x021b685dL, 0x942b6f2aL, 0x37be0bb4L, 0xa18e0cc3L, 0x1bdf055aL,
+ 0x8def022dL
+#else
+ 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
+ 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
+ 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
+ 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
+ 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
+ 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
+ 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
+ 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
+ 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
+ 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
+ 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
+ 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
+ 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
+ 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
+ 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
+ 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
+ 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
+ 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
+ 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
+ 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
+ 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
+ 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
+ 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
+ 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
+ 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
+ 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
+ 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
+ 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
+ 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
+ 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
+ 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
+ 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
+ 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
+ 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
+ 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
+ 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
+ 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
+ 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
+ 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
+ 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
+ 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
+ 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
+ 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
+ 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+ 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
+ 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
+ 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
+ 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+ 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
+ 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
+ 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
+ 0x2d02ef8dL
+#endif
+};
+
+EbmlCrc32::EbmlCrc32()
+{
+ ResetCRC();
+ SetDefaultSize(DIGESTSIZE);
+ m_crc_final = 0;
+ SetSize_(4);
+ //This EbmlElement has been set
+// SetValueIsSet();
+}
+
+EbmlCrc32::EbmlCrc32(const EbmlCrc32 & ElementToClone)
+:EbmlBinary(ElementToClone)
+{
+ m_crc = ElementToClone.m_crc;
+ m_crc_final = ElementToClone.m_crc_final;
+}
+
+void EbmlCrc32::AddElementCRC32(EbmlElement &ElementToCRC)
+{
+ // Use a special IOCallback class that Render's to memory instead of to disk
+ MemIOCallback memoryBuffer;
+ ElementToCRC.Render(memoryBuffer, true, true);
+
+ Update(memoryBuffer.GetDataBuffer(), memoryBuffer.GetDataBufferSize());
+// Finalize();
+};
+
+bool EbmlCrc32::CheckElementCRC32(EbmlElement &ElementToCRC)
+{
+ MemIOCallback memoryBuffer;
+ ElementToCRC.Render(memoryBuffer);
+
+ return CheckCRC(m_crc_final, memoryBuffer.GetDataBuffer(), memoryBuffer.GetDataBufferSize());
+};
+
+filepos_t EbmlCrc32::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
+{
+ filepos_t Result = DIGESTSIZE;
+
+ if (Result != 0) {
+ output.writeFully(&m_crc_final, Result);
+ }
+
+ if (Result < GetDefaultSize()) {
+ // pad the rest with 0
+ binary *Pad = new binary[GetDefaultSize() - Result];
+ if (Pad != NULL) {
+ memset(Pad, 0x00, GetDefaultSize() - Result);
+ output.writeFully(Pad, GetDefaultSize() - Result);
+
+ Result = GetDefaultSize();
+ delete [] Pad;
+ }
+ }
+
+ return Result;
+}
+
+filepos_t EbmlCrc32::ReadData(IOCallback & input, ScopeMode ReadFully)
+{
+ if (ReadFully != SCOPE_NO_DATA)
+ {
+ binary *Buffer = new binary[GetSize()];
+ if (Buffer == NULL) {
+ // impossible to read, skip it
+ input.setFilePointer(GetSize(), seek_current);
+ } else {
+ input.readFully(Buffer, GetSize());
+
+ memcpy((void *)&m_crc_final, Buffer, 4);
+ delete [] Buffer;
+ SetValueIsSet();
+ }
+ }
+
+ return GetSize();
+}
+
+bool EbmlCrc32::CheckCRC(uint32 inputCRC, const binary *input, uint32 length)
+{
+ uint32 crc = CRC32_NEGL;
+
+ for(; !IsAligned<uint32>(input) && length > 0; length--)
+ crc = m_tab[CRC32_INDEX(crc) ^ *input++] ^ CRC32_SHIFTED(crc);
+
+ while (length >= 4)
+ {
+ crc ^= *(const uint32 *)input;
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ length -= 4;
+ input += 4;
+ }
+
+ while (length--)
+ crc = m_tab[CRC32_INDEX(crc) ^ *input++] ^ CRC32_SHIFTED(crc);
+
+ //Now we finalize the CRC32
+ crc ^= CRC32_NEGL;
+
+ if (crc == inputCRC)
+ return true;
+
+ return false;
+};
+
+void EbmlCrc32::FillCRC32(const binary *s, uint32 n)
+{
+ ResetCRC();
+ Update(s, n);
+ Finalize();
+
+ /*uint32 crc = CRC32_NEGL;
+
+ for(; !IsAligned<uint32>(s) && n > 0; n--)
+ crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
+
+ while (n >= 4)
+ {
+ crc ^= *(const uint32 *)s;
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ n -= 4;
+ s += 4;
+ }
+
+ while (n--)
+ crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
+
+ m_crc = crc;
+
+ //Now we finalize the CRC32
+ m_crc ^= CRC32_NEGL;
+ //for (unsigned int i = 0; i < 4; i++)
+ // (&last_crc32)[i] = GetCrcByte(i);*/
+
+}
+
+void EbmlCrc32::Update(const binary *input, uint32 length)
+{
+ uint32 crc = m_crc;
+
+ for(; !IsAligned<uint32>(input) && length > 0; length--)
+ crc = m_tab[CRC32_INDEX(crc) ^ *input++] ^ CRC32_SHIFTED(crc);
+
+ while (length >= 4)
+ {
+ crc ^= *(const uint32 *)input;
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
+ length -= 4;
+ input += 4;
+ }
+
+ while (length--)
+ crc = m_tab[CRC32_INDEX(crc) ^ *input++] ^ CRC32_SHIFTED(crc);
+
+ m_crc = crc;
+}
+
+void EbmlCrc32::Finalize()
+{
+ //Finalize the CRC32
+ m_crc ^= CRC32_NEGL;
+ //Copy it over to completed CRC32 memeber
+ m_crc_final = m_crc;
+ //Reset the holding CRC member (m_crc)
+ ResetCRC();
+ //This EbmlElement has been set
+ SetValueIsSet();
+}
+
+END_LIBEBML_NAMESPACE