100 lines
3.5 KiB
C++
100 lines
3.5 KiB
C++
/*
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* Copyright (c) 1999-2008 Apple Inc. All Rights Reserved.
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*
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*/
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//
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// QTAtom:
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// The base-class for atoms in a QuickTime file.
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#ifndef QTAtom_H
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#define QTAtom_H
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//
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// Includes
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#include "OSHeaders.h"
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#include "QTFile.h"
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//
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// QTAtom class
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class QTAtom {
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public:
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//
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// Constructors and destructor.
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QTAtom(QTFile * File, QTFile::AtomTOCEntry * Atom,
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Bool16 Debug = false, Bool16 DeepDebug = false);
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virtual ~QTAtom(void);
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//
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// Initialization functions.
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virtual Bool16 Initialize(void) { return true; }
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static SInt64 NTOH64(SInt64 networkOrdered)
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{
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#if BIGENDIAN
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return networkOrdered;
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#else
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return (SInt64) ( (UInt64) (networkOrdered << 56) | (UInt64) (((UInt64) 0x00ff0000 << 32) & (networkOrdered << 40))
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| (UInt64) ( ((UInt64) 0x0000ff00 << 32) & (networkOrdered << 24)) | (UInt64) (((UInt64) 0x000000ff << 32) & (networkOrdered << 8))
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| (UInt64) ( ((UInt64) 0x00ff0000 << 8) & (networkOrdered >> 8)) | (UInt64) ((UInt64) 0x00ff0000 & (networkOrdered >> 24))
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| (UInt64) ( (UInt64) 0x0000ff00 & (networkOrdered >> 40)) | (UInt64) ((UInt64) 0x00ff & (networkOrdered >> 56)) );
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#endif
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}
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//
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// Read functions.
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Bool16 ReadBytes(UInt64 Offset, char * Buffer, UInt32 Length);
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Bool16 ReadInt8(UInt64 Offset, UInt8 * Datum);
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Bool16 ReadInt16(UInt64 Offset, UInt16 * Datum);
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Bool16 ReadInt32(UInt64 Offset, UInt32 * Datum);
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Bool16 ReadInt64(UInt64 Offset, UInt64 * Datum);
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Bool16 ReadInt32To64(UInt64 Offset, UInt64 * Datum);
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Bool16 ReadInt32To64Signed(UInt64 Offset, SInt64 * Datum);
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Bool16 ReadSubAtomBytes(const char * AtomPath, char * Buffer, UInt32 Length);
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Bool16 ReadSubAtomInt8(const char * AtomPath, UInt8 * Datum);
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Bool16 ReadSubAtomInt16(const char * AtomPath, UInt16 * Datum);
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Bool16 ReadSubAtomInt32(const char * AtomPath, UInt32 * Datum);
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Bool16 ReadSubAtomInt64(const char * AtomPath, UInt64 * Datum);
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char* MemMap(UInt64 Offset, UInt32 Length);
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Bool16 UnMap(char *memPtr, UInt32 Length);
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//
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// Debugging functions.
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virtual void DumpAtom(void) {}
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protected:
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//
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// Protected member variables.
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Bool16 fDebug, fDeepDebug;
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QTFile *fFile;
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QTFile::AtomTOCEntry fTOCEntry;
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};
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#endif // QTAtom_H
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