67 lines
2.2 KiB
C++
67 lines
2.2 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) 2014 Moritz Bunkus. 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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\author Moritz Bunkus <moritz@bunkus.org>
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*/
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#ifndef LIBEBML_MEMREADIOCALLBACK_H
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#define LIBEBML_MEMREADIOCALLBACK_H
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#include "IOCallback.h"
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START_LIBEBML_NAMESPACE
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class EBML_DLL_API EbmlBinary;
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class EBML_DLL_API MemReadIOCallback : public IOCallback {
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protected:
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uint8 const *mStart, *mEnd, *mPtr;
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public:
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MemReadIOCallback(void const *Ptr, size_t Size);
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MemReadIOCallback(EbmlBinary const &Binary);
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MemReadIOCallback(MemReadIOCallback const &Mem);
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virtual ~MemReadIOCallback();
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uint32 read(void *Buffer, size_t Size);
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void setFilePointer(int64 Offset, seek_mode Mode = seek_beginning);
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size_t write(void const *, size_t) { return 0; }
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virtual uint64 getFilePointer() { return mPtr - mStart; }
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void close() {}
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binary const *GetDataBuffer() const { return mPtr; }
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uint64 GetDataBufferSize() const { return mEnd - mStart; }
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protected:
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void Init(void const *Ptr, size_t Size);
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};
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END_LIBEBML_NAMESPACE
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#endif // LIBEBML_MEMREADIOCALLBACK_H
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