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v1/v2: rename bKeepIntact to bWithDefault for more clarity in the API

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git-svn-id: https://matroska.svn.sourceforge.net/svnroot/matroska/trunk/libebml@123 a6f86f6d-0131-4f8e-9e7b-e335508773d5
This commit is contained in:
Steve Lhomme 2010-04-15 14:54:49 +00:00
parent be6a37df06
commit 769a6c3ab7
22 changed files with 410 additions and 410 deletions
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4
ebml/EbmlBinary.h
View File

@ -64,9 +64,9 @@ class EBML_DLL_API EbmlBinary : public EbmlElement {
virtual bool ValidateSize() const {return true;} // we don't mind about what's inside
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
void SetBuffer(const binary *Buffer, const uint32 BufferSize) {
Data = (binary *) Buffer;

4
ebml/EbmlCrc32.h
View File

@ -58,9 +58,9 @@ DECLARE_EBML_BINARY(EbmlCrc32)
public:
EbmlCrc32(const EbmlCrc32 & ElementToClone);
virtual bool ValidateSize() const {return (GetSize() == 4);}
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
// filepos_t UpdateSize(bool bKeepIntact = false);
// filepos_t UpdateSize(bool bWithDefault = false);
bool IsDefaultValue() const {
return false;

4
ebml/EbmlDate.h
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@ -65,7 +65,7 @@ class EBML_DLL_API EbmlDate : public EbmlElement {
/*!
\note no Default date handled
*/
filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false) {
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false) {
if(!ValueIsSet())
SetSize_(0);
else
@ -86,7 +86,7 @@ class EBML_DLL_API EbmlDate : public EbmlElement {
#else
protected:
#endif
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
int64 myDate; ///< internal format of the date

12
ebml/EbmlElement.h
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@ -384,11 +384,11 @@ class EBML_DLL_API EbmlElement {
return ElementPosition;
}
uint64 ElementSize(bool bKeepIntact = false) const; /// return the size of the header+data, before writing
uint64 ElementSize(bool bWithDefault = 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);
filepos_t Render(IOCallback & output, bool bWithDefault = 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 UpdateSize(bool bWithDefault = 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;
@ -421,7 +421,7 @@ class EBML_DLL_API EbmlElement {
/*!
\brief void the content of the element (replace by EbmlVoid)
*/
uint32 VoidMe(IOCallback & output, bool bKeepIntact = false);
uint32 VoidMe(IOCallback & output, bool bWithDefault = false);
bool DefaultISset() const {return DefaultIsSet;}
virtual bool IsDefaultValue() const = 0;
@ -445,13 +445,13 @@ class EBML_DLL_API EbmlElement {
*/
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 RenderHead(IOCallback & output, bool bForceRender, bool bWithDefault = 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;
virtual filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false) = 0;
/*!
\brief special constructor for cloning

4
ebml/EbmlFloat.h
View File

@ -61,9 +61,9 @@ class EBML_DLL_API EbmlFloat : public EbmlElement {
return (GetSize() == 4 || GetSize() == 8);
}
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
void SetPrecision(const EbmlFloat::Precision prec = FLOAT_32)
{

6
ebml/EbmlMaster.h
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@ -63,9 +63,9 @@ class EBML_DLL_API EbmlMaster : public EbmlElement {
*/
virtual ~EbmlMaster();
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully);
filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
/*!
\brief Set wether the size is finite (size is known in advance when writing, or infinite size is not known on writing)
@ -150,7 +150,7 @@ class EBML_DLL_API EbmlMaster : public EbmlElement {
\brief facility for Master elements to write only the head and force the size later
\warning
*/
filepos_t WriteHead(IOCallback & output, int SizeLength, bool bKeepIntact = false);
filepos_t WriteHead(IOCallback & output, int SizeLength, bool bWithDefault = false);
void EnableChecksum(bool bIsEnabled = true) { bChecksumUsed = bIsEnabled; }
bool HasChecksum() const {return bChecksumUsed;}

4
ebml/EbmlSInteger.h
View File

@ -65,9 +65,9 @@ class EBML_DLL_API EbmlSInteger : public EbmlElement {
virtual void SetDefaultSize(uint64 nDefaultSize = DEFAULT_INT_SIZE) {SetSize_(nDefaultSize);}
virtual bool ValidateSize() const {return (GetSize() <= 8);}
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
virtual bool IsSmallerThan(const EbmlElement *Cmp) const;

4
ebml/EbmlString.h
View File

@ -56,9 +56,9 @@ class EBML_DLL_API EbmlString : public EbmlElement {
virtual ~EbmlString() {}
virtual bool ValidateSize() const {return true;} // any size is possible
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
EbmlString & operator=(const std::string &);
operator const std::string &() const {return Value;}

4
ebml/EbmlUInteger.h
View File

@ -63,9 +63,9 @@ class EBML_DLL_API EbmlUInteger : public EbmlElement {
virtual void SetDefaultSize(uint64 nDefaultSize = DEFAULT_UINT_SIZE) {SetSize_(nDefaultSize);}
virtual bool ValidateSize() const {return (GetSize() <= 8);}
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
virtual bool IsSmallerThan(const EbmlElement *Cmp) const;

4
ebml/EbmlUnicodeString.h
View File

@ -105,9 +105,9 @@ class EBML_DLL_API EbmlUnicodeString : public EbmlElement {
virtual ~EbmlUnicodeString() {}
virtual bool ValidateSize() const {return true;} // any size is possible
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false);
EbmlUnicodeString & operator=(const UTFstring &); ///< platform dependant code
operator const UTFstring &() const {return Value;}

6
ebml/EbmlVoid.h
View File

@ -53,17 +53,17 @@ DECLARE_EBML_BINARY(EbmlVoid)
/*!
\note overwrite to write fake data
*/
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
/*!
\brief Replace the void element content (written) with this one
*/
uint64 ReplaceWith(EbmlElement & EltToReplaceWith, IOCallback & output, bool ComeBackAfterward = true, bool bKeepIntact = false);
uint64 ReplaceWith(EbmlElement & EltToReplaceWith, IOCallback & output, bool ComeBackAfterward = true, bool bWithDefault = false);
/*!
\brief Void the content of an element
*/
uint64 Overwrite(const EbmlElement & EltToVoid, IOCallback & output, bool ComeBackAfterward = true, bool bKeepIntact = false);
uint64 Overwrite(const EbmlElement & EltToVoid, IOCallback & output, bool ComeBackAfterward = true, bool bWithDefault = false);
EBML_CONCRETE_CLASS(EbmlVoid)
};

4
src/EbmlBinary.cpp
View File

@ -61,7 +61,7 @@ EbmlBinary::~EbmlBinary(void) {
free(Data);
}
filepos_t EbmlBinary::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
filepos_t EbmlBinary::RenderData(IOCallback & output, bool bForceRender, bool bWithDefault)
{
output.writeFully(Data,GetSize());
@ -71,7 +71,7 @@ filepos_t EbmlBinary::RenderData(IOCallback & output, bool bForceRender, bool bK
/*!
\note no Default binary value handled
*/
uint64 EbmlBinary::UpdateSize(bool bKeepIntact, bool bForceRender)
uint64 EbmlBinary::UpdateSize(bool bWithDefault, bool bForceRender)
{
return GetSize();
}

666
src/EbmlCrc32.cpp
View File

@ -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 bWithDefault)
{
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

2
src/EbmlDate.cpp
View File

@ -65,7 +65,7 @@ filepos_t EbmlDate::ReadData(IOCallback & input, ScopeMode ReadFully)
return GetSize();
}
filepos_t EbmlDate::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
filepos_t EbmlDate::RenderData(IOCallback & output, bool bForceRender, bool bWithDefault)
{
if (GetSize() != 0) {
assert(GetSize() == 8);

24
src/EbmlElement.cpp
View File

@ -573,19 +573,19 @@ EbmlElement *EbmlElement::CreateElementUsingContext(const EbmlId & aID, const Eb
/*!
\todo verify that the size written is the same as the data written
*/
filepos_t EbmlElement::Render(IOCallback & output, bool bKeepIntact, bool bKeepPosition, bool bForceRender)
filepos_t EbmlElement::Render(IOCallback & output, bool bWithDefault, bool bKeepPosition, bool bForceRender)
{
assert(bValueIsSet || (bKeepIntact && DefaultISset())); // an element is been rendered without a value set !!!
assert(bValueIsSet || (bWithDefault && DefaultISset())); // an element is been rendered without a value set !!!
// it may be a mandatory element without a default value
try {
if (!bKeepIntact && IsDefaultValue()) {
if (!bWithDefault && IsDefaultValue()) {
return 0;
}
#if defined(_DEBUG) || defined(DEBUG)
uint64 SupposedSize = UpdateSize(bKeepIntact, bForceRender);
uint64 SupposedSize = UpdateSize(bWithDefault, bForceRender);
#endif // _DEBUG
filepos_t result = RenderHead(output, bForceRender, bKeepIntact, bKeepPosition);
uint64 WrittenSize = RenderData(output, bForceRender, bKeepIntact);
filepos_t result = RenderHead(output, bForceRender, bWithDefault, bKeepPosition);
uint64 WrittenSize = RenderData(output, bForceRender, bWithDefault);
#if defined(_DEBUG) || defined(DEBUG)
if (SupposedSize != (0-1)) assert(WrittenSize == SupposedSize);
#endif // DEBUG
@ -603,12 +603,12 @@ filepos_t EbmlElement::Render(IOCallback & output, bool bKeepIntact, bool bKeepP
\todo handle exceptions on errors
\todo handle CodeSize bigger than 5 bytes
*/
filepos_t EbmlElement::RenderHead(IOCallback & output, bool bForceRender, bool bKeepIntact, bool bKeepPosition)
filepos_t EbmlElement::RenderHead(IOCallback & output, bool bForceRender, bool bWithDefault, bool bKeepPosition)
{
if (EBML_ID_LENGTH(EbmlId(*this)) <= 0 || EBML_ID_LENGTH(EbmlId(*this)) > 4)
return 0;
UpdateSize(bKeepIntact, bForceRender);
UpdateSize(bWithDefault, bForceRender);
return MakeRenderHead(output, bKeepPosition);
}
@ -634,9 +634,9 @@ filepos_t EbmlElement::MakeRenderHead(IOCallback & output, bool bKeepPosition)
return FinalHeadSize;
}
uint64 EbmlElement::ElementSize(bool bKeepIntact) const
uint64 EbmlElement::ElementSize(bool bWithDefault) const
{
if (!bKeepIntact && IsDefaultValue())
if (!bWithDefault && IsDefaultValue())
return 0; // won't be saved
return Size + EBML_ID_LENGTH(EbmlId(*this)) + CodedSizeLength(Size, SizeLength, bSizeIsFinite);
}
@ -692,14 +692,14 @@ filepos_t EbmlElement::OverwriteHead(IOCallback & output, bool bKeepPosition)
return Result;
}
uint32 EbmlElement::VoidMe(IOCallback & output, bool bKeepIntact)
uint32 EbmlElement::VoidMe(IOCallback & output, bool bWithDefault)
{
if (ElementPosition == 0) {
return 0; // the element has not been written
}
EbmlVoid Dummy;
return Dummy.Overwrite(*this, output, bKeepIntact);
return Dummy.Overwrite(*this, output, bWithDefault);
}
END_LIBEBML_NAMESPACE

6
src/EbmlFloat.cpp
View File

@ -78,7 +78,7 @@ const double EbmlFloat::DefaultVal() const
\todo handle exception on errors
\todo handle 10 bits precision
*/
filepos_t EbmlFloat::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
filepos_t EbmlFloat::RenderData(IOCallback & output, bool bForceRender, bool bWithDefault)
{
assert(GetSize() == 4 || GetSize() == 8);
@ -99,9 +99,9 @@ filepos_t EbmlFloat::RenderData(IOCallback & output, bool bForceRender, bool bKe
return GetSize();
}
uint64 EbmlFloat::UpdateSize(bool bKeepIntact, bool bForceRender)
uint64 EbmlFloat::UpdateSize(bool bWithDefault, bool bForceRender)
{
if (!bKeepIntact && IsDefaultValue())
if (!bWithDefault && IsDefaultValue())
return 0;
return GetSize();
}

22
src/EbmlMaster.cpp
View File

@ -87,7 +87,7 @@ EbmlMaster::~EbmlMaster()
\todo handle exception on errors
\todo write all the Mandatory elements in the Context, otherwise assert
*/
filepos_t EbmlMaster::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
filepos_t EbmlMaster::RenderData(IOCallback & output, bool bForceRender, bool bWithDefault)
{
filepos_t Result = 0;
size_t Index;
@ -98,16 +98,16 @@ filepos_t EbmlMaster::RenderData(IOCallback & output, bool bForceRender, bool bK
if (!bChecksumUsed) { // old school
for (Index = 0; Index < ElementList.size(); Index++) {
if (!bKeepIntact && (ElementList[Index])->IsDefaultValue())
if (!bWithDefault && (ElementList[Index])->IsDefaultValue())
continue;
Result += (ElementList[Index])->Render(output, bKeepIntact, false ,bForceRender);
Result += (ElementList[Index])->Render(output, bWithDefault, false ,bForceRender);
}
} else { // new school
MemIOCallback TmpBuf(GetSize() - 6);
for (Index = 0; Index < ElementList.size(); Index++) {
if (!bKeepIntact && (ElementList[Index])->IsDefaultValue())
if (!bWithDefault && (ElementList[Index])->IsDefaultValue())
continue;
(ElementList[Index])->Render(TmpBuf, bKeepIntact, false ,bForceRender);
(ElementList[Index])->Render(TmpBuf, bWithDefault, false ,bForceRender);
}
Checksum.FillCRC32(TmpBuf.GetDataBuffer(), TmpBuf.GetDataBufferSize());
Result += Checksum.Render(output, true, false ,bForceRender);
@ -127,7 +127,7 @@ bool EbmlMaster::PushElement(EbmlElement & element)
return true;
}
uint64 EbmlMaster::UpdateSize(bool bKeepIntact, bool bForceRender)
uint64 EbmlMaster::UpdateSize(bool bWithDefault, bool bForceRender)
{
SetSize_(0);
@ -141,10 +141,10 @@ uint64 EbmlMaster::UpdateSize(bool bKeepIntact, bool bForceRender)
size_t Index;
for (Index = 0; Index < ElementList.size(); Index++) {
if (!bKeepIntact && (ElementList[Index])->IsDefaultValue())
if (!bWithDefault && (ElementList[Index])->IsDefaultValue())
continue;
(ElementList[Index])->UpdateSize(bKeepIntact, bForceRender);
uint64 SizeToAdd = (ElementList[Index])->ElementSize(bKeepIntact);
(ElementList[Index])->UpdateSize(bWithDefault, bForceRender);
uint64 SizeToAdd = (ElementList[Index])->ElementSize(bWithDefault);
#if defined(_DEBUG) || defined(DEBUG)
if (SizeToAdd == (0-1))
return (0-1);
@ -158,10 +158,10 @@ uint64 EbmlMaster::UpdateSize(bool bKeepIntact, bool bForceRender)
return GetSize();
}
filepos_t EbmlMaster::WriteHead(IOCallback & output, int nSizeLength, bool bKeepIntact)
filepos_t EbmlMaster::WriteHead(IOCallback & output, int nSizeLength, bool bWithDefault)
{
SetSizeLength(nSizeLength);
return RenderHead(output, false, bKeepIntact);
return RenderHead(output, false, bWithDefault);
}
/*!

6
src/EbmlSInteger.cpp
View File

@ -58,7 +58,7 @@ EbmlSInteger::EbmlSInteger(const EbmlSInteger & ElementToClone)
/*!
\todo handle exception on errors
*/
filepos_t EbmlSInteger::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
filepos_t EbmlSInteger::RenderData(IOCallback & output, bool bForceRender, bool bWithDefault)
{
binary FinalData[8]; // we don't handle more than 64 bits integers
unsigned int i;
@ -77,9 +77,9 @@ filepos_t EbmlSInteger::RenderData(IOCallback & output, bool bForceRender, bool
return GetSize();
}
uint64 EbmlSInteger::UpdateSize(bool bKeepIntact, bool bForceRender)
uint64 EbmlSInteger::UpdateSize(bool bWithDefault, bool bForceRender)
{
if (!bKeepIntact && IsDefaultValue())
if (!bWithDefault && IsDefaultValue())
return 0;
if (Value <= 0x7F && Value >= (-0x80)) {

6
src/EbmlString.cpp
View File

@ -87,7 +87,7 @@ const std::string & EbmlString::DefaultVal() const
/*!
\todo handle exception on errors
*/
filepos_t EbmlString::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
filepos_t EbmlString::RenderData(IOCallback & output, bool bForceRender, bool bWithDefault)
{
filepos_t Result;
output.writeFully(Value.c_str(), Value.length());
@ -120,9 +120,9 @@ EbmlString & EbmlString::operator=(const std::string & NewString)
return *this;
}
uint64 EbmlString::UpdateSize(bool bKeepIntact, bool bForceRender)
uint64 EbmlString::UpdateSize(bool bWithDefault, bool bForceRender)
{
if (!bKeepIntact && IsDefaultValue())
if (!bWithDefault && IsDefaultValue())
return 0;
if (Value.length() < GetDefaultSize()) {

6
src/EbmlUInteger.cpp
View File

@ -74,7 +74,7 @@ const uint64 EbmlUInteger::DefaultVal() const
/*!
\todo handle exception on errors
*/
filepos_t EbmlUInteger::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
filepos_t EbmlUInteger::RenderData(IOCallback & output, bool bForceRender, bool bWithDefault)
{
binary FinalData[8]; // we don't handle more than 64 bits integers
@ -92,9 +92,9 @@ filepos_t EbmlUInteger::RenderData(IOCallback & output, bool bForceRender, bool
return GetSize();
}
uint64 EbmlUInteger::UpdateSize(bool bKeepIntact, bool bForceRender)
uint64 EbmlUInteger::UpdateSize(bool bWithDefault, bool bForceRender)
{
if (!bKeepIntact && IsDefaultValue())
if (!bWithDefault && IsDefaultValue())
return 0;
if (Value <= 0xFF) {

6
src/EbmlUnicodeString.cpp
View File

@ -242,7 +242,7 @@ const UTFstring & EbmlUnicodeString::DefaultVal() const
\note limited to UCS-2
\todo handle exception on errors
*/
filepos_t EbmlUnicodeString::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
filepos_t EbmlUnicodeString::RenderData(IOCallback & output, bool bForceRender, bool bWithDefault)
{
uint32 Result = Value.GetUTF8().length();
@ -275,9 +275,9 @@ EbmlUnicodeString & EbmlUnicodeString::operator=(const UTFstring & NewString)
/*!
\note limited to UCS-2
*/
uint64 EbmlUnicodeString::UpdateSize(bool bKeepIntact, bool bForceRender)
uint64 EbmlUnicodeString::UpdateSize(bool bWithDefault, bool bForceRender)
{
if (!bKeepIntact && IsDefaultValue())
if (!bWithDefault && IsDefaultValue())
return 0;
SetSize_(Value.GetUTF8().length());

16
src/EbmlVoid.cpp
View File

@ -45,7 +45,7 @@ EbmlVoid::EbmlVoid()
SetValueIsSet();
}
filepos_t EbmlVoid::RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact)
filepos_t EbmlVoid::RenderData(IOCallback & output, bool bForceRender, bool bWithDefault)
{
// write dummy data by 4KB chunks
static binary DummyBuf[4*1024];
@ -60,9 +60,9 @@ filepos_t EbmlVoid::RenderData(IOCallback & output, bool bForceRender, bool bKee
return GetSize();
}
uint64 EbmlVoid::ReplaceWith(EbmlElement & EltToReplaceWith, IOCallback & output, bool ComeBackAfterward, bool bKeepIntact)
uint64 EbmlVoid::ReplaceWith(EbmlElement & EltToReplaceWith, IOCallback & output, bool ComeBackAfterward, bool bWithDefault)
{
EltToReplaceWith.UpdateSize(bKeepIntact);
EltToReplaceWith.UpdateSize(bWithDefault);
if (HeadSize() + GetSize() < EltToReplaceWith.GetSize() + EltToReplaceWith.HeadSize()) {
// the element can't be written here !
return INVALID_FILEPOS_T;
@ -75,7 +75,7 @@ uint64 EbmlVoid::ReplaceWith(EbmlElement & EltToReplaceWith, IOCallback & output
uint64 CurrentPosition = output.getFilePointer();
output.setFilePointer(GetElementPosition());
EltToReplaceWith.Render(output, bKeepIntact);
EltToReplaceWith.Render(output, bWithDefault);
if (HeadSize() + GetSize() - EltToReplaceWith.GetSize() - EltToReplaceWith.HeadSize() > 1) {
// fill the rest with another void element
@ -87,7 +87,7 @@ uint64 EbmlVoid::ReplaceWith(EbmlElement & EltToReplaceWith, IOCallback & output
if (HeadBefore != HeadAfter) {
aTmp.SetSizeLength(CodedSizeLength(aTmp.GetSize(), aTmp.GetSizeLength(), aTmp.IsFiniteSize()) - (HeadAfter - HeadBefore));
}
aTmp.RenderHead(output, false, bKeepIntact); // the rest of the data is not rewritten
aTmp.RenderHead(output, false, bWithDefault); // the rest of the data is not rewritten
}
if (ComeBackAfterward) {
@ -97,9 +97,9 @@ uint64 EbmlVoid::ReplaceWith(EbmlElement & EltToReplaceWith, IOCallback & output
return GetSize() + HeadSize();
}
uint64 EbmlVoid::Overwrite(const EbmlElement & EltToVoid, IOCallback & output, bool ComeBackAfterward, bool bKeepIntact)
uint64 EbmlVoid::Overwrite(const EbmlElement & EltToVoid, IOCallback & output, bool ComeBackAfterward, bool bWithDefault)
{
// EltToVoid.UpdateSize(bKeepIntact);
// EltToVoid.UpdateSize(bWithDefault);
if (EltToVoid.GetElementPosition() == 0) {
// this element has never been written
return 0;
@ -125,7 +125,7 @@ uint64 EbmlVoid::Overwrite(const EbmlElement & EltToVoid, IOCallback & output, b
}
if (GetSize() != 0) {
RenderHead(output, false, bKeepIntact); // the rest of the data is not rewritten
RenderHead(output, false, bWithDefault); // the rest of the data is not rewritten
}
if (ComeBackAfterward) {