91 lines
2.6 KiB
C++
91 lines
2.6 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_mvhd:
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// The 'mvhd' QTAtom class.
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#ifndef QTAtom_mvhd_H
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#define QTAtom_mvhd_H
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//
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// Includes
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#include "QTFile.h"
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#include "QTAtom.h"
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//
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// QTAtom class
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class QTAtom_mvhd : public QTAtom {
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public:
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//
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// Constructors and destructor.
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QTAtom_mvhd(QTFile * File, QTFile::AtomTOCEntry * Atom,
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Bool16 Debug = false, Bool16 DeepDebug = false);
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virtual ~QTAtom_mvhd(void);
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//
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// Initialization functions.
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virtual Bool16 Initialize(void);
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//
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// Accessors.
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inline Float64 GetTimeScale(void) { return (Float64)fTimeScale; }
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#if __Win32__
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// Win compiler can't convert UInt64 to Float64. It does support SInt64 to Float64 though.
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inline Float64 GetDurationInSeconds(void) { if (fTimeScale != 0){return (Float64)((SInt64)fDuration) / (Float64) ((SInt64)fTimeScale); } else {return (Float64) 0.0;} }
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#else
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inline Float64 GetDurationInSeconds(void) { if (fTimeScale != 0){ return fDuration / (Float64)fTimeScale; } else {return (Float64) 0.0;} }
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#endif
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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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UInt8 fVersion;
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UInt32 fFlags; // 24 bits in the low 3 bytes
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UInt64 fCreationTime, fModificationTime;
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UInt32 fTimeScale;
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UInt64 fDuration;
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UInt32 fPreferredRate;
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UInt16 fPreferredVolume;
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UInt32 fa, fb, fu, fc, fd, fv, fx, fy, fw;
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UInt32 fPreviewTime, fPreviewDuration, fPosterTime;
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UInt32 fSelectionTime, fSelectionDuration;
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UInt32 fCurrentTime;
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UInt32 fNextTrackID;
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};
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#endif // QTAtom_mvhd_H
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