114 lines
3 KiB
C++
114 lines
3 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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// $Id: QTAtom_tref.cpp,v 1.1 2006/01/05 13:20:36 murata Exp $
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//
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// QTAtom_tref:
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// The 'tref' QTAtom class.
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// -------------------------------------
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// Includes
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//
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#include <stdio.h>
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#include <stdlib.h>
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#include "SafeStdLib.h"
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#include "QTFile.h"
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#include "QTAtom.h"
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#include "QTAtom_tref.h"
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#include "OSMemory.h"
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// -------------------------------------
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// Constants
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//
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const int trefPos_SampleTable = 0;
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// -------------------------------------
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// Macros
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//
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#define DEBUG_PRINT(s) if(fDebug) qtss_printf s
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#define DEEP_DEBUG_PRINT(s) if(fDeepDebug) qtss_printf s
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// -------------------------------------
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// Constructors and destructors
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//
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QTAtom_tref::QTAtom_tref(QTFile * File, QTFile::AtomTOCEntry * TOCEntry, Bool16 Debug, Bool16 DeepDebug)
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: QTAtom(File, TOCEntry, Debug, DeepDebug),
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fNumEntries(0), fTrackReferenceTable(NULL), fTable(NULL)
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{
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}
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QTAtom_tref::~QTAtom_tref(void)
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{
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//
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// Free our variables.
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if( fTrackReferenceTable != NULL )
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delete[] fTrackReferenceTable;
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}
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// -------------------------------------
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// Initialization functions
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//
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Bool16 QTAtom_tref::Initialize(void)
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{
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//
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// Compute the size of the sample table.
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fNumEntries = fTOCEntry.AtomDataLength / 4;
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//
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// Read in the track reference table.
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fTrackReferenceTable = NEW char[ (SInt32) ((fNumEntries * 4) + 1)];
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if( fTrackReferenceTable == NULL )
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return false;
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if( ((PointerSizedInt)fTrackReferenceTable & (PointerSizedInt)0x3) == 0)
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fTable = (UInt32 *)fTrackReferenceTable;
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else
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fTable = (UInt32 *)(((PointerSizedInt)fTrackReferenceTable + 4) & ~((PointerSizedInt)0x3));
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ReadBytes(trefPos_SampleTable, (char *)fTable, (UInt32) (fNumEntries * 4) );
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//
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// This atom has been successfully read in.
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return true;
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}
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// -------------------------------------
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// Debugging functions
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//
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void QTAtom_tref::DumpAtom(void)
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{
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DEBUG_PRINT(("QTAtom_tref::DumpAtom - Dumping atom.\n"));
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DEBUG_PRINT(("QTAtom_tref::DumpAtom - ..Number of track reference entries: %"_U32BITARG_"\n", (UInt32) fNumEntries));
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}
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