libebml/libebml2: only Master elements can have an infinite/unknown size

git-svn-id: https://matroska.svn.sourceforge.net/svnroot/matroska/trunk/libebml@270 a6f86f6d-0131-4f8e-9e7b-e335508773d5
This commit is contained in:
Steve Lhomme 2010-05-25 12:02:30 +00:00
parent ece95ac6b7
commit 8f6b7a6fd9
8 changed files with 488 additions and 487 deletions

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@ -1,106 +1,106 @@
/****************************************************************************
** 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: EbmlBinary.h 1298 2008-02-21 22:14:18Z mosu $
\author Steve Lhomme <robux4 @ users.sf.net>
\author Julien Coloos <suiryc @ users.sf.net>
*/
#ifndef LIBEBML_BINARY_H
#define LIBEBML_BINARY_H
#include <cstring>
#include "EbmlTypes.h"
#include "EbmlElement.h"
// ----- Added 10/15/2003 by jcsston from Zen -----
#if defined (__BORLANDC__) //Maybe other compilers?
#include <mem.h>
#endif //__BORLANDC__
// ------------------------------------------------
START_LIBEBML_NAMESPACE
/*!
\class EbmlBinary
\brief Handle all operations on an EBML element that contains "unknown" binary data
\todo handle fix sized elements (like UID of CodecID)
*/
class EBML_DLL_API EbmlBinary : public EbmlElement {
public:
EbmlBinary();
EbmlBinary(const EbmlBinary & ElementToClone);
virtual ~EbmlBinary(void);
virtual bool ValidateSize() const {return true;} // we don't mind about what's inside
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
void SetBuffer(const binary *Buffer, const uint32 BufferSize) {
Data = (binary *) Buffer;
SetSize_(BufferSize);
SetValueIsSet();
}
binary *GetBuffer() const {return Data;}
void CopyBuffer(const binary *Buffer, const uint32 BufferSize) {
if (Data != NULL)
free(Data);
Data = (binary *)malloc(BufferSize * sizeof(binary));
memcpy(Data, Buffer, BufferSize);
SetSize_(BufferSize);
SetValueIsSet();
}
operator const binary &() const {return *Data;}
bool IsDefaultValue() const {
return false;
}
bool operator==(const EbmlBinary & ElementToCompare) const;
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
binary *Data; // the binary data inside the element
};
END_LIBEBML_NAMESPACE
#endif // LIBEBML_BINARY_H
/****************************************************************************
** 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$
\author Steve Lhomme <robux4 @ users.sf.net>
\author Julien Coloos <suiryc @ users.sf.net>
*/
#ifndef LIBEBML_BINARY_H
#define LIBEBML_BINARY_H
#include <cstring>
#include "EbmlTypes.h"
#include "EbmlElement.h"
// ----- Added 10/15/2003 by jcsston from Zen -----
#if defined (__BORLANDC__) //Maybe other compilers?
#include <mem.h>
#endif //__BORLANDC__
// ------------------------------------------------
START_LIBEBML_NAMESPACE
/*!
\class EbmlBinary
\brief Handle all operations on an EBML element that contains "unknown" binary data
\todo handle fix sized elements (like UID of CodecID)
*/
class EBML_DLL_API EbmlBinary : public EbmlElement {
public:
EbmlBinary();
EbmlBinary(const EbmlBinary & ElementToClone);
virtual ~EbmlBinary(void);
virtual bool ValidateSize() const {return IsFiniteSize() && GetSize() < INT_MAX;} // we don't mind about what's inside
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
void SetBuffer(const binary *Buffer, const uint32 BufferSize) {
Data = (binary *) Buffer;
SetSize_(BufferSize);
SetValueIsSet();
}
binary *GetBuffer() const {return Data;}
void CopyBuffer(const binary *Buffer, const uint32 BufferSize) {
if (Data != NULL)
free(Data);
Data = (binary *)malloc(BufferSize * sizeof(binary));
memcpy(Data, Buffer, BufferSize);
SetSize_(BufferSize);
SetValueIsSet();
}
operator const binary &() const {return *Data;}
bool IsDefaultValue() const {
return false;
}
bool operator==(const EbmlBinary & ElementToCompare) const;
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
binary *Data; // the binary data inside the element
};
END_LIBEBML_NAMESPACE
#endif // LIBEBML_BINARY_H

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@ -1,156 +1,156 @@
/****************************************************************************
** 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.h 1326 2009-08-23 00:47:52Z robux4 $
\author Steve Lhomme <robux4 @ users.sf.net>
\author Jory Stone <jcsston @ toughguy.net>
*/
#ifndef LIBEBML_CRC32_H
#define LIBEBML_CRC32_H
#include <cassert>
#include "EbmlTypes.h"
#include "EbmlBinary.h"
START_LIBEBML_NAMESPACE
const uint32 CRC32_NEGL = 0xffffffffL;
#ifdef WORDS_BIGENDIAN
# define CRC32_INDEX(c) (c >> 24)
# define CRC32_SHIFTED(c) (c << 8)
#else
# define CRC32_INDEX(c) (c & 0xff)
# define CRC32_SHIFTED(c) (c >> 8)
#endif
DECLARE_EBML_BINARY(EbmlCrc32)
public:
EbmlCrc32(const EbmlCrc32 & ElementToClone);
virtual bool ValidateSize() const {return (GetSize() == 4);}
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
// filepos_t UpdateSize(bool bWithDefault = false);
bool IsDefaultValue() const {
return false;
}
void AddElementCRC32(EbmlElement &ElementToCRC);
bool CheckElementCRC32(EbmlElement &ElementToCRC);
/*!
CRC Checksum Calculation
*/
enum {DIGESTSIZE = 4};
/*!
Use this to quickly check a CRC32 with some data
\return True if inputCRC matches CRC32 generated from input data
*/
static bool CheckCRC(uint32 inputCRC, const binary *input, uint32 length);
/*!
Calls Update() and Finalize(), use to create a CRC32 in one go
*/
void FillCRC32(const binary *input, uint32 length);
/*!
Add data to the CRC table, in other words process some data bit by bit
*/
void Update(const binary *input, uint32 length);
/*!
Use this with Update() to Finalize() or Complete the CRC32
*/
void Finalize();
/*!
Returns a uint32 that has the value of the CRC32
*/
uint32 GetCrc32() const {
return m_crc_final;
};
void ForceCrc32(uint32 NewValue) { m_crc_final = NewValue; SetValueIsSet();}
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
void ResetCRC() {m_crc = CRC32_NEGL;}
void UpdateByte(binary b) {m_crc = m_tab[CRC32_INDEX(m_crc) ^ b] ^ CRC32_SHIFTED(m_crc);}
static const uint32 m_tab[256];
uint32 m_crc;
uint32 m_crc_final;
EBML_CONCRETE_CLASS(EbmlCrc32)
};
template <class T>
inline unsigned int GetAlignment(T *dummy=NULL) // VC60 workaround
{
#if (_MSC_VER >= 1300)
return __alignof(T);
#elif defined(__GNUC__)
return __alignof__(T);
#else
return sizeof(T);
#endif
}
template <class T>
inline bool IsPowerOf2(T n)
{
return n > 0 && (n & (n-1)) == 0;
}
template <class T1, class T2>
inline T2 ModPowerOf2(T1 a, T2 b)
{
assert(IsPowerOf2(b));
return T2(a) & (b-1);
}
inline bool IsAlignedOn(const void *p, unsigned int alignment)
{
return IsPowerOf2(alignment) ? ModPowerOf2((uintptr_t)p, alignment) == 0 : (uintptr_t)p % alignment == 0;
}
template <class T>
inline bool IsAligned(const void *p, T *dummy=NULL) // VC60 workaround
{
return IsAlignedOn(p, GetAlignment<T>());
}
END_LIBEBML_NAMESPACE
#endif // LIBEBML_CRC32_H
/****************************************************************************
** 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$
\author Steve Lhomme <robux4 @ users.sf.net>
\author Jory Stone <jcsston @ toughguy.net>
*/
#ifndef LIBEBML_CRC32_H
#define LIBEBML_CRC32_H
#include <cassert>
#include "EbmlTypes.h"
#include "EbmlBinary.h"
START_LIBEBML_NAMESPACE
const uint32 CRC32_NEGL = 0xffffffffL;
#ifdef WORDS_BIGENDIAN
# define CRC32_INDEX(c) (c >> 24)
# define CRC32_SHIFTED(c) (c << 8)
#else
# define CRC32_INDEX(c) (c & 0xff)
# define CRC32_SHIFTED(c) (c >> 8)
#endif
DECLARE_EBML_BINARY(EbmlCrc32)
public:
EbmlCrc32(const EbmlCrc32 & ElementToClone);
virtual bool ValidateSize() const {return IsFiniteSize() && (GetSize() == 4);}
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
// filepos_t UpdateSize(bool bWithDefault = false);
bool IsDefaultValue() const {
return false;
}
void AddElementCRC32(EbmlElement &ElementToCRC);
bool CheckElementCRC32(EbmlElement &ElementToCRC);
/*!
CRC Checksum Calculation
*/
enum {DIGESTSIZE = 4};
/*!
Use this to quickly check a CRC32 with some data
\return True if inputCRC matches CRC32 generated from input data
*/
static bool CheckCRC(uint32 inputCRC, const binary *input, uint32 length);
/*!
Calls Update() and Finalize(), use to create a CRC32 in one go
*/
void FillCRC32(const binary *input, uint32 length);
/*!
Add data to the CRC table, in other words process some data bit by bit
*/
void Update(const binary *input, uint32 length);
/*!
Use this with Update() to Finalize() or Complete the CRC32
*/
void Finalize();
/*!
Returns a uint32 that has the value of the CRC32
*/
uint32 GetCrc32() const {
return m_crc_final;
};
void ForceCrc32(uint32 NewValue) { m_crc_final = NewValue; SetValueIsSet();}
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
void ResetCRC() {m_crc = CRC32_NEGL;}
void UpdateByte(binary b) {m_crc = m_tab[CRC32_INDEX(m_crc) ^ b] ^ CRC32_SHIFTED(m_crc);}
static const uint32 m_tab[256];
uint32 m_crc;
uint32 m_crc_final;
EBML_CONCRETE_CLASS(EbmlCrc32)
};
template <class T>
inline unsigned int GetAlignment(T *dummy=NULL) // VC60 workaround
{
#if (_MSC_VER >= 1300)
return __alignof(T);
#elif defined(__GNUC__)
return __alignof__(T);
#else
return sizeof(T);
#endif
}
template <class T>
inline bool IsPowerOf2(T n)
{
return n > 0 && (n & (n-1)) == 0;
}
template <class T1, class T2>
inline T2 ModPowerOf2(T1 a, T2 b)
{
assert(IsPowerOf2(b));
return T2(a) & (b-1);
}
inline bool IsAlignedOn(const void *p, unsigned int alignment)
{
return IsPowerOf2(alignment) ? ModPowerOf2((uintptr_t)p, alignment) == 0 : (uintptr_t)p % alignment == 0;
}
template <class T>
inline bool IsAligned(const void *p, T *dummy=NULL) // VC60 workaround
{
return IsAlignedOn(p, GetAlignment<T>());
}
END_LIBEBML_NAMESPACE
#endif // LIBEBML_CRC32_H

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@ -28,7 +28,7 @@
/*!
\file
\version \$Id: EbmlDate.h 1079 2005-03-03 13:18:14Z robux4 $
\version \$Id$
\author Steve Lhomme <robux4 @ users.sf.net>
*/
#ifndef LIBEBML_DATE_H
@ -60,7 +60,7 @@ class EBML_DLL_API EbmlDate : public EbmlElement {
*/
int32 GetEpochDate() const {return int32(myDate/1000000000 + UnixEpochDelay);}
virtual bool ValidateSize() const {return ((GetSize() == 8) || (GetSize() == 0));}
virtual bool ValidateSize() const {return IsFiniteSize() && ((GetSize() == 8) || (GetSize() == 0));}
/*!
\note no Default date handled

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@ -456,6 +456,7 @@ class EBML_DLL_API EbmlElement {
bool ValueIsSet() const {return bValueIsSet;}
inline uint64 GetEndPosition() const {
assert(bSizeIsFinite); // we don't know where the end is
return SizePosition + CodedSizeLength(Size, SizeLength, bSizeIsFinite) + Size;
}

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@ -30,7 +30,7 @@
/*!
\file
\version \$Id: EbmlSInteger.h 1079 2005-03-03 13:18:14Z robux4 $
\version \$Id$
\author Steve Lhomme <robux4 @ users.sf.net>
\author Julien Coloos <suiryc @ users.sf.net>
\author Moritz Bunkus <moritz @ bunkus.org>
@ -64,7 +64,7 @@ class EBML_DLL_API EbmlSInteger : public EbmlElement {
*/
virtual void SetDefaultSize(uint64 nDefaultSize = DEFAULT_INT_SIZE) {EbmlElement::SetDefaultSize(nDefaultSize); SetSize_(nDefaultSize);}
virtual bool ValidateSize() const {return (GetSize() <= 8);}
virtual bool ValidateSize() const {return IsFiniteSize() && (GetSize() <= 8);}
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);

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@ -1,85 +1,85 @@
/****************************************************************************
** 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: EbmlString.h 1079 2005-03-03 13:18:14Z robux4 $
\author Steve Lhomme <robux4 @ users.sf.net>
*/
#ifndef LIBEBML_STRING_H
#define LIBEBML_STRING_H
#include <string>
#include "EbmlTypes.h"
#include "EbmlElement.h"
START_LIBEBML_NAMESPACE
/*!
\class EbmlString
\brief Handle all operations on a printable string EBML element
*/
class EBML_DLL_API EbmlString : public EbmlElement {
public:
EbmlString();
EbmlString(const std::string & aDefaultValue);
EbmlString(const EbmlString & ElementToClone);
virtual ~EbmlString() {}
virtual bool ValidateSize() const {return true;} // any size is possible
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
EbmlString & operator=(const std::string &);
operator const std::string &() const {return Value;}
void SetDefaultValue(std::string &);
const std::string & DefaultVal() const;
bool IsDefaultValue() const {
return (DefaultISset() && Value == DefaultValue);
}
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
std::string Value; /// The actual value of the element
std::string DefaultValue;
};
END_LIBEBML_NAMESPACE
#endif // LIBEBML_STRING_H
/****************************************************************************
** 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$
\author Steve Lhomme <robux4 @ users.sf.net>
*/
#ifndef LIBEBML_STRING_H
#define LIBEBML_STRING_H
#include <string>
#include "EbmlTypes.h"
#include "EbmlElement.h"
START_LIBEBML_NAMESPACE
/*!
\class EbmlString
\brief Handle all operations on a printable string EBML element
*/
class EBML_DLL_API EbmlString : public EbmlElement {
public:
EbmlString();
EbmlString(const std::string & aDefaultValue);
EbmlString(const EbmlString & ElementToClone);
virtual ~EbmlString() {}
virtual bool ValidateSize() const {return IsFiniteSize();} // any size is possible
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
EbmlString & operator=(const std::string &);
operator const std::string &() const {return Value;}
void SetDefaultValue(std::string &);
const std::string & DefaultVal() const;
bool IsDefaultValue() const {
return (DefaultISset() && Value == DefaultValue);
}
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
std::string Value; /// The actual value of the element
std::string DefaultValue;
};
END_LIBEBML_NAMESPACE
#endif // LIBEBML_STRING_H

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@ -30,7 +30,7 @@
/*!
\file
\version \$Id: EbmlUInteger.h 1079 2005-03-03 13:18:14Z robux4 $
\version \$Id$
\author Steve Lhomme <robux4 @ users.sf.net>
\author Julien Coloos <suiryc @ users.sf.net>
\author Moritz Bunkus <moritz @ bunkus.org>
@ -62,7 +62,7 @@ class EBML_DLL_API EbmlUInteger : public EbmlElement {
*/
virtual void SetDefaultSize(uint64 nDefaultSize = DEFAULT_UINT_SIZE) {EbmlElement::SetDefaultSize(nDefaultSize); SetSize_(nDefaultSize);}
virtual bool ValidateSize() const {return (GetSize() <= 8);}
virtual bool ValidateSize() const {return IsFiniteSize() && (GetSize() <= 8);}
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);

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@ -1,134 +1,134 @@
/****************************************************************************
** 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: EbmlUnicodeString.h 1079 2005-03-03 13:18:14Z robux4 $
\author Steve Lhomme <robux4 @ users.sf.net>
\author Moritz Bunkus <moritz @ bunkus.org>
\author Jory Stone <jcsston @ toughguy.net>
*/
#ifndef LIBEBML_UNICODE_STRING_H
#define LIBEBML_UNICODE_STRING_H
#include <string>
#include "EbmlTypes.h"
#include "EbmlElement.h"
START_LIBEBML_NAMESPACE
/*!
\class UTFstring
A class storing strings in a wchar_t (ie, in UCS-2 or UCS-4)
\note inspired by wstring which is not available everywhere
*/
class EBML_DLL_API UTFstring {
public:
typedef wchar_t value_type;
UTFstring();
UTFstring(const wchar_t *); // should be NULL terminated
UTFstring(const UTFstring &);
virtual ~UTFstring();
bool operator==(const UTFstring&) const;
inline bool operator!=(const UTFstring &cmp) const
{
return !(*this == cmp);
}
UTFstring & operator=(const UTFstring &);
UTFstring & operator=(const wchar_t *);
UTFstring & operator=(wchar_t);
/// Return length of string
size_t length() const {return _Length;}
operator const wchar_t*() const {return _Data;}
const wchar_t* c_str() const {return _Data;}
const std::string & GetUTF8() const {return UTF8string;}
void SetUTF8(const std::string &);
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
size_t _Length; ///< length of the UCS string excluding the \0
wchar_t* _Data; ///< internal UCS representation
std::string UTF8string;
static bool wcscmp_internal(const wchar_t *str1, const wchar_t *str2);
void UpdateFromUTF8();
void UpdateFromUCS2();
};
/*!
\class EbmlUnicodeString
\brief Handle all operations on a Unicode string EBML element
\note internally treated as a string made of wide characters (ie UCS-2 or UCS-4 depending on the machine)
*/
class EBML_DLL_API EbmlUnicodeString : public EbmlElement {
public:
EbmlUnicodeString();
EbmlUnicodeString(const UTFstring & DefaultValue);
EbmlUnicodeString(const EbmlUnicodeString & ElementToClone);
virtual ~EbmlUnicodeString() {}
virtual bool ValidateSize() const {return true;} // any size is possible
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
EbmlUnicodeString & operator=(const UTFstring &); ///< platform dependant code
operator const UTFstring &() const {return Value;}
void SetDefaultValue(UTFstring &);
const UTFstring & DefaultVal() const;
bool IsDefaultValue() const {
return (DefaultISset() && Value == DefaultValue);
}
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
UTFstring Value; /// The actual value of the element
UTFstring DefaultValue;
};
END_LIBEBML_NAMESPACE
#endif // LIBEBML_UNICODE_STRING_H
/****************************************************************************
** 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$
\author Steve Lhomme <robux4 @ users.sf.net>
\author Moritz Bunkus <moritz @ bunkus.org>
\author Jory Stone <jcsston @ toughguy.net>
*/
#ifndef LIBEBML_UNICODE_STRING_H
#define LIBEBML_UNICODE_STRING_H
#include <string>
#include "EbmlTypes.h"
#include "EbmlElement.h"
START_LIBEBML_NAMESPACE
/*!
\class UTFstring
A class storing strings in a wchar_t (ie, in UCS-2 or UCS-4)
\note inspired by wstring which is not available everywhere
*/
class EBML_DLL_API UTFstring {
public:
typedef wchar_t value_type;
UTFstring();
UTFstring(const wchar_t *); // should be NULL terminated
UTFstring(const UTFstring &);
virtual ~UTFstring();
bool operator==(const UTFstring&) const;
inline bool operator!=(const UTFstring &cmp) const
{
return !(*this == cmp);
}
UTFstring & operator=(const UTFstring &);
UTFstring & operator=(const wchar_t *);
UTFstring & operator=(wchar_t);
/// Return length of string
size_t length() const {return _Length;}
operator const wchar_t*() const {return _Data;}
const wchar_t* c_str() const {return _Data;}
const std::string & GetUTF8() const {return UTF8string;}
void SetUTF8(const std::string &);
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
size_t _Length; ///< length of the UCS string excluding the \0
wchar_t* _Data; ///< internal UCS representation
std::string UTF8string;
static bool wcscmp_internal(const wchar_t *str1, const wchar_t *str2);
void UpdateFromUTF8();
void UpdateFromUCS2();
};
/*!
\class EbmlUnicodeString
\brief Handle all operations on a Unicode string EBML element
\note internally treated as a string made of wide characters (ie UCS-2 or UCS-4 depending on the machine)
*/
class EBML_DLL_API EbmlUnicodeString : public EbmlElement {
public:
EbmlUnicodeString();
EbmlUnicodeString(const UTFstring & DefaultValue);
EbmlUnicodeString(const EbmlUnicodeString & ElementToClone);
virtual ~EbmlUnicodeString() {}
virtual bool ValidateSize() const {return IsFiniteSize();} // any size is possible
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
EbmlUnicodeString & operator=(const UTFstring &); ///< platform dependant code
operator const UTFstring &() const {return Value;}
void SetDefaultValue(UTFstring &);
const UTFstring & DefaultVal() const;
bool IsDefaultValue() const {
return (DefaultISset() && Value == DefaultValue);
}
#if defined(EBML_STRICT_API)
private:
#else
protected:
#endif
UTFstring Value; /// The actual value of the element
UTFstring DefaultValue;
};
END_LIBEBML_NAMESPACE
#endif // LIBEBML_UNICODE_STRING_H