mirror of
https://gitlab.com/mbunkus/mkvtoolnix.git
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fa9fc31e5f
Further commits will make this optional so that the system libs are used if they're new enough.
99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
/****************************************************************************
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** libebml : parse EBML files, see http://embl.sourceforge.net/
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**
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** <file/class description>
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**
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** Copyright (C) 2002-2010 Steve Lhomme. All rights reserved.
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**
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** This library is free software; you can redistribute it and/or
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** modify it under the terms of the GNU Lesser General Public
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** License as published by the Free Software Foundation; either
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** version 2.1 of the License, or (at your option) any later version.
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**
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** This library is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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** Lesser General Public License for more details.
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**
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** You should have received a copy of the GNU Lesser General Public
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** License along with this library; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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**
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** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
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**
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** Contact license@matroska.org if any conditions of this licensing are
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** not clear to you.
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**
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**********************************************************************/
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/*!
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\file
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\version \$Id: EbmlDate.h 270 2010-05-25 12:02:30Z robux4 $
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\author Steve Lhomme <robux4 @ users.sf.net>
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*/
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#ifndef LIBEBML_DATE_H
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#define LIBEBML_DATE_H
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#include "EbmlTypes.h"
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#include "EbmlElement.h"
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START_LIBEBML_NAMESPACE
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/*!
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\class EbmlDate
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\brief Handle all operations related to an EBML date
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*/
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class EBML_DLL_API EbmlDate : public EbmlElement {
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public:
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EbmlDate() :EbmlElement(8, false), myDate(0) {}
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EbmlDate(const EbmlDate & ElementToClone);
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/*!
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\brief set the date with a UNIX/C/EPOCH form
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\param NewDate UNIX/C date in UTC (no timezone)
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*/
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void SetEpochDate(int32 NewDate) {myDate = int64(NewDate - UnixEpochDelay) * 1000000000; SetValueIsSet();}
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/*!
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\brief get the date with a UNIX/C/EPOCH form
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\note the date is in UTC (no timezone)
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*/
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int32 GetEpochDate() const {return int32(myDate/1000000000 + UnixEpochDelay);}
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virtual bool ValidateSize() const {return IsFiniteSize() && ((GetSize() == 8) || (GetSize() == 0));}
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/*!
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\note no Default date handled
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*/
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filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false) {
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if(!ValueIsSet())
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SetSize_(0);
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else
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SetSize_(8);
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return GetSize();
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}
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virtual bool IsSmallerThan(const EbmlElement *Cmp) const;
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filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
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bool IsDefaultValue() const {
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return false;
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}
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#if defined(EBML_STRICT_API)
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private:
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#else
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protected:
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#endif
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filepos_t RenderData(IOCallback & output, bool bForceRender, bool bWithDefault = false);
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int64 myDate; ///< internal format of the date
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static const uint64 UnixEpochDelay;
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};
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END_LIBEBML_NAMESPACE
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#endif // LIBEBML_DATE_H
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