151 lines
4.9 KiB
C
151 lines
4.9 KiB
C
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/*
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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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// $Id: QTAtom_stsc.h,v 1.1 2006/01/05 13:20:36 murata Exp $
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//
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// QTAtom_stsc:
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// The 'stsc' QTAtom class.
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#ifndef QTAtom_stsc_H
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#define QTAtom_stsc_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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// Class state cookie
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class QTAtom_stsc_SampleTableControlBlock {
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public:
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//
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// Constructor and destructor.
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QTAtom_stsc_SampleTableControlBlock(void);
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virtual ~QTAtom_stsc_SampleTableControlBlock(void);
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//
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// Reset function
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void Reset(void);
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//
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// Sample table cache
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UInt32 fCurEntry;
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UInt32 fCurSample;
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UInt32 fLastFirstChunk, fLastSamplesPerChunk, fLastSampleDescription;
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UInt32 fLastFirstChunk_GetChunkFirstLastSample;
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UInt32 fLastSamplesPerChunk_GetChunkFirstLastSample;
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UInt32 fLastTotalSamples_GetChunkFirstLastSample;
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UInt32 fCurEntry_GetChunkFirstLastSample;
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UInt32 chunkNumber_GetChunkFirstLastSample;
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UInt32 firstSample_GetChunkFirstLastSample;
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UInt32 lastSample_GetChunkFirstLastSample;
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UInt32 fFirstSampleNumber_SampleToChunkInfo;
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UInt32 fFirstSamplesPerChunk_SampleToChunkInfo;
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UInt32 fFirstChunkNumber_SampleToChunkInfo;
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UInt32 fFirstSampleDescriptionIndex_SampleToChunkInfo;
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UInt32 fFirstSampleOffsetInChunk_SampleToChunkInfo;
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UInt32 fCurEntry_SampleToChunkInfo;
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UInt32 fCurSample_SampleToChunkInfo;
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UInt32 fLastFirstChunk_SampleToChunkInfo;
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UInt32 fLastSamplesPerChunk_SampleToChunkInfo;
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UInt32 fLastSampleDescription_SampleToChunkInfo;
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UInt32 fGetSampleInfo_SampleNumber;
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UInt32 fGetSampleInfo_Length;
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UInt32 fGetSampleInfo_SampleDescriptionIndex;
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UInt64 fGetSampleInfo_Offset;
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UInt32 fGetSampleInfo_LastChunk;
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UInt32 fGetSampleInfo_LastChunkOffset;
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UInt32 fGetSizeOfSamplesInChunk_chunkNumber;
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UInt32 fGetSizeOfSamplesInChunk_firstSample;
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UInt32 fGetSizeOfSamplesInChunk_lastSample;
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UInt32 fGetSizeOfSamplesInChunk_size;
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};
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//
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// QTAtom class
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class QTAtom_stsc : public QTAtom {
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public:
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//
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// Constructors and destructor.
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QTAtom_stsc(QTFile * File, QTFile::AtomTOCEntry * Atom,
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Bool16 Debug = false, Bool16 DeepDebug = false);
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virtual ~QTAtom_stsc(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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Bool16 GetChunkFirstLastSample(UInt32 chunkNumber, UInt32 *firstSample, UInt32 *lastSample, QTAtom_stsc_SampleTableControlBlock *STCB);
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Bool16 SampleToChunkInfo(UInt32 SampleNumber,
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UInt32 *samplesPerChunk = NULL,
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UInt32 *ChunkNumber = NULL,
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UInt32 *SampleDescriptionIndex = NULL,
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UInt32 *SampleOffsetInChunk = NULL,
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QTAtom_stsc_SampleTableControlBlock * STCB = NULL);
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inline Bool16 SampleNumberToChunkNumber(UInt32 SampleNumber, UInt32 *ChunkNumber = NULL, UInt32 *SampleDescriptionIndex = NULL, UInt32 *SampleOffsetInChunk = NULL,
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QTAtom_stsc_SampleTableControlBlock * STCB = NULL)
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{ return SampleToChunkInfo(SampleNumber,NULL /*samplesPerChunk*/, ChunkNumber, SampleDescriptionIndex, SampleOffsetInChunk, STCB); }
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UInt32 GetChunkFirstSample(UInt32 chunkNumber);
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//
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// Debugging functions.
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virtual void DumpAtom(void);
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virtual void DumpTable(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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UInt32 fNumEntries;
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char *fSampleToChunkTable;
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UInt32 fTableSize;
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};
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#endif // QTAtom_stsc_H
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