Add even more of the source
This should be about everything needed to build so far?
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QTFileLib/QTFile.h
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QTFileLib/QTFile.h
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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: QTFile.h,v 1.1 2006/01/05 13:20:36 murata Exp $
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//
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// QTFile:
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// The central point of control for a file in the QuickTime File Format.
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#ifndef QTFile_H
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#define QTFile_H
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//
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// Includes
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#include "OSHeaders.h"
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#include "OSFileSource.h"
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#include "QTFile_FileControlBlock.h"
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#include "DateTranslator.h"
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//
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// External classes
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class OSMutex;
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class QTAtom_mvhd;
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class QTTrack;
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//
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// QTFile class
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class QTFile {
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public:
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//
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// Class constants
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//
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// Class error codes
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enum ErrorCode {
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errNoError = 0,
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errFileNotFound = 1,
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errInvalidQuickTimeFile = 2,
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errInternalError = 100
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};
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//
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// Class typedefs.
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struct AtomTOCEntry {
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// TOC id (used to compare TOCs)
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UInt32 TOCID;
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// Atom information
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OSType AtomType, beAtomType; // be = Big Endian
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UInt64 AtomDataPos;
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UInt64 AtomDataLength;
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UInt32 AtomHeaderSize;
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// TOC pointers
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AtomTOCEntry *NextOrdAtom;
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AtomTOCEntry *PrevAtom, *NextAtom;
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AtomTOCEntry *Parent, *FirstChild;
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};
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struct TrackListEntry {
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// Track information
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UInt32 TrackID;
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QTTrack *Track;
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Bool16 IsHintTrack;
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// List pointers
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TrackListEntry *NextTrack;
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};
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public:
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//
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// Constructors and destructor.
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QTFile(Bool16 Debug = false, Bool16 DeepDebug = false);
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virtual ~QTFile(void);
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//
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// Open a movie file and generate the atom table of contents.
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ErrorCode Open(const char * MoviePath);
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OSMutex* GetMutex() { return fReadMutex; }
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//
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// Table of Contents functions.
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Bool16 FindTOCEntry(const char * AtomPath,
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AtomTOCEntry **TOCEntry,
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AtomTOCEntry *LastFoundTOCEntry = NULL);
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//
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// Track List functions
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inline UInt32 GetNumTracks(void) { return fNumTracks; }
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Bool16 NextTrack(QTTrack **Track, QTTrack *LastFoundTrack = NULL);
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Bool16 FindTrack(UInt32 TrackID, QTTrack **Track);
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Bool16 IsHintTrack(QTTrack *Track);
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//
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// Accessors
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inline char * GetMoviePath(void) { return fMoviePath; }
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Float64 GetTimeScale(void);
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Float64 GetDurationInSeconds(void);
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SInt64 GetModDate();
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// Returns the mod date as a RFC 1123 formatted string
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char* GetModDateStr();
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//
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// Read functions.
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Bool16 Read(UInt64 Offset, char * const Buffer, UInt32 Length, QTFile_FileControlBlock * FCB = NULL);
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void AllocateBuffers(UInt32 inUnitSizeInK, UInt32 inBufferInc, UInt32 inBufferSize, UInt32 inMaxBitRateBuffSizeInBlocks, UInt32 inBitrate);
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#if DSS_USE_API_CALLBACKS
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void IncBufferUserCount() {if (fOSFileSourceFD != NULL) fOSFileSourceFD->IncMaxBuffers();}
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void DecBufferUserCount() {if (fOSFileSourceFD != NULL) fOSFileSourceFD->DecMaxBuffers();}
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#else
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void IncBufferUserCount() {fMovieFD.IncMaxBuffers();}
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void DecBufferUserCount() {fMovieFD.DecMaxBuffers();}
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#endif
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inline Bool16 ValidTOC();
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char* MapFileToMem(UInt64 offset, UInt32 length);
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int UnmapMem(char *memPtr, UInt32 length);
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//
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// Debugging functions.
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void DumpAtomTOC(void);
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protected:
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//
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// Protected member functions.
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Bool16 GenerateAtomTOC(void);
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//
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// Protected member variables.
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Bool16 fDebug, fDeepDebug;
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UInt32 fNextTOCID;
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#if DSS_USE_API_CALLBACKS
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QTSS_Object fMovieFD;
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OSFileSource *fOSFileSourceFD;
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#else
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OSFileSource fMovieFD;
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#endif
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Bool16 fCacheBuffersSet;
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DateBuffer fModDateBuffer;
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char *fMoviePath;
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AtomTOCEntry *fTOC, *fTOCOrdHead, *fTOCOrdTail;
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UInt32 fNumTracks;
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TrackListEntry *fFirstTrack, *fLastTrack;
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QTAtom_mvhd *fMovieHeaderAtom;
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OSMutex *fReadMutex;
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int fFile;
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};
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Bool16 QTFile::ValidTOC()
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{
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UInt64 theLength = 0;
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UInt64 thePos = 0;
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#if DSS_USE_API_CALLBACKS
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UInt32 theDataLen = sizeof(UInt64);
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(void)QTSS_GetValue(fMovieFD, qtssFlObjLength, 0, (void*)&theLength, &theDataLen);
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(void)QTSS_GetValue(fMovieFD, qtssFlObjPosition, 0, (void*)&thePos, &theDataLen);
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// qtss_printf("GenerateAtomTOC failed CurPos=%"_64BITARG_"u < Length=%"_64BITARG_"u\n", CurPos, theLength);
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#else
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theLength = fMovieFD.GetLength();
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thePos = fMovieFD.GetCurOffset();
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#endif
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if (thePos < theLength) // failure pos not at end of file
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{
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// qtss_printf("GenerateAtomTOC failed CurPos=%"_64BITARG_"u < Length=%"_64BITARG_"u\n", CurPos, theLength);
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return false;
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}
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return true;
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}
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#endif // QTFile_H
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