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dEXIF.pas
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dEXIF.pas
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unit dEXIF;
////////////////////////////////////////////////////////////////////////////////
// unit dEXIF - Copyright 2001-2006, Gerry McGuire
//--------------------------------------------------------------------------
// Program to pull the information out of various types of EXIF digital
// camera files and show it in a reasonably consistent way
//
// This module parses the very complicated exif structures.
//
// Matthias Wandel, Dec 1999 - August 2000 (most of the comments)
//
// Translated to Delphi:
// Gerry McGuire, March - April 2001 - Currently - read only
// May 2001 - add EXIF to jpeg output files
// September 2001 - read TIF files, IPTC data
// June 2003 - First (non-beta) Release
//--------------------------------------------------------------------------
// In addition to the basic information provided by Matthias, the
// following web page contains reference informtion regarding the
// exif standard: http://www.pima.net/standards/iso/tc42/wg18/WG18_POW.htm
// (the documents themselves are PDF).
//--------------------------------------------------------------------------
// 17.05.2002 MS Corrections/additions M. Schwaiger
//--------------------------------------------------------------------------
{$IFDEF FPC}
{$MODE Delphi}
{$ENDIF}
{$I dExif.inc}
interface
uses
SysUtils, Classes, Math, Variants,
{$IFDEF FPC}
LazUTF8,
{$ELSE}
{$IFNDEF dExifNoJpeg} jpeg, {$ENDIF}
{$ENDIF}
dGlobal, dUtils, dTags, dIPTC;
const
{
ExifTag = 1; // default tag Types
GpsTag = 2;
ThumbTag = 4;
}
// To be used in Exifobj.IterateFoundTags
GenericEXIF = 0;
CustomEXIF = 1;
// AllEXIF = -1;
GenNone = 0;
GenAll = 255;
GenString = 2;
GenList = 4;
// VLMin = 0;
// VLMax = 1;
type
{ TEndInd }
TEndInd = class
private
FData: ansistring;
public
MotorolaOrder: boolean;
function Get16u(AOffs: integer): word;
function Get32s(AOffs: integer): Longint;
function Get32u(AOffs: integer): Longword;
function Put32s(data: Integer): AnsiString;
procedure WriteInt16(var buff: AnsiString; int,posn: integer);
procedure WriteInt32(var buff: AnsiString; int,posn: longint);
function GetDataBuff: Ansistring;
procedure SetDataBuff(const Value: AnsiString);
property DataBuff: AnsiString read GetDataBuff write SetDataBuff;
end;
{ TImageInfo }
TImageInfo = class(tEndInd)
private
FParent: TObject; // must be cast to TImgData, can't be done here due to unit circular reference
FExifVersion: string;
FITagArray: array of TTagEntry;
FITagCount: integer;
FIThumbArray: array of TTagEntry;
FIThumbCount: integer;
FThumbStart: integer;
FThumbLength: integer;
FThumbType: integer;
FThumbnailBuffer: TBytes;
FThumbnailStartOffset: Integer;
FThumbnailSize: Integer;
FIterator: integer;
FThumbIterator: integer;
// Getter / setter
function GetDateTimeOriginal: TDateTime;
procedure SetDateTimeOriginal(const AValue: TDateTime);
function GetDateTimeDigitized: TDateTime;
procedure SetDateTimeDigitized(const AValue: TDateTime);
function GetDateTimeModified: TDateTime;
procedure SetDateTimeModified(const AValue: TDateTime);
function GetArtist: String;
procedure SetArtist(v: String);
function GetExifComment: String; overload;
procedure SetExifComment(AValue: String);
function GetUserComment(const ATag: TTagEntry): String; overload;
function GetImageDescription: String;
procedure SetImageDescription(const AValue: String);
function GetCameraMake: String;
procedure SetCameraMake(const AValue: String);
function GetCameraModel: String;
procedure SetCameraModel(const AValue: String);
function GetCopyright: String;
procedure SetCopyright(const AValue: String);
function GetGPSCoordinate(ATagName: String;
ACoordType: TGpsCoordType): Extended;
procedure SetGPSCoordinate(ATagName: String; const AValue: Extended;
ACoordType: TGpsCoordType);
function GetGPSLatitude: Extended;
procedure SetGPSLatitude(const AValue: Extended);
function GetGPSLongitude: Extended;
procedure SetGPSLongitude(const AValue: Extended);
function GetHeight: Integer;
procedure Setheight(AValue: Integer);
function GetWidth: Integer;
procedure SetWidth(AValue: Integer);
function GetVersion(ATag: TTagEntry): String;
function GetTagByID(ATagID: Word): TTagEntry;
procedure SetTagByID(ATagID: Word; const AValue: TTagEntry);
function GetTagByIndex(AIndex: Integer): TTagEntry;
procedure SetTagByIndex(AIndex: Integer; const AValue: TTagEntry);
function GetTagByName(ATagName: String): TTagEntry;
procedure SetTagByName(ATagName: String; const AValue: TTagEntry);
function GetTagValue(ATagName: String): variant;
procedure SetTagValue(ATagName: String; AValue: variant);
function GetTagValueAsString(ATagName: String): String;
procedure SetTagValueAsString(ATagName: String; AValue: String);
function GetThumbTagByID(ATagID: Word): TTagEntry;
procedure SetThumbTagByID(ATagID: Word; const AValue: TTagEntry);
function GetThumbTagByIndex(AIndex: Integer): TTagEntry;
procedure SetThumbTagByIndex(AIndex: Integer; const AValue: TTagEntry);
function GetThumbTagByName(ATagName: String): TTagEntry;
procedure SetThumbTagByName(ATagName: String; const AValue: TTagEntry);
function GetThumbTagValue(ATagName: String): Variant;
procedure SetThumbTagValue(ATagName: String; AValue: variant);
function GetThumbTagValueAsString(ATagName: String): string;
procedure SetThumbTagValueAsString(ATagName: String; AValue: String);
procedure InternalGetBinaryTagValue(const ATag: TTagEntry; var ABuffer: ansistring);
function InternalGetTagValue(const ATag: TTagEntry): Variant;
function InternalGetTagValueAsString(const ATag: TTagEntry): String;
procedure InternalSetTagValue(const ATagName: String; AValue: Variant;
ATagTypes: TTagTypes; ABinaryData: Pointer = nil; ABinaryDataCount: Word = 0);
function BinaryTagToStr(const ATag: TTagEntry): String;
function BinaryTagToVar(const ATag: TTagEntry): Variant;
function NumericTagToVar(ABuffer: Pointer; ATagType: Integer): Variant;
procedure VarToNumericTag(AValue:variant; ATag: PTagEntry);
// misc
function CreateTagPtr(const ATagDef: TTagEntry; IsThumbTag: Boolean; AParentID: Word = 0): PTagEntry;
function FindTagPtr(const ATagDef: TTagEntry; IsThumbTag: Boolean): PTagEntry;
(*
function GetTagPtr(ATagTypes: TTagTypes; ATagID: Word; AForceCreate: Boolean=false;
AParentID: word=0; ATagType: word=65535): PTagEntry;
*)
procedure RemoveTag(ATagTypes: TTagTypes; ATagID: Word; AParentID: Word=0);
procedure ClearDirStack;
procedure PushDirStack(dirStart, offsetbase: Integer);
function TestDirStack(dirStart, offsetbase: Integer): boolean;
protected
function AddTagToArray(ANewTag: iTag): integer;
function AddTagToThumbArray(ANewTag: iTag): integer;
procedure Calc35Equiv;
function CvtInt(ABuffer: Pointer; ABufferSize: Integer): Longint;
function Decode: Boolean;
function ExifDateToDateTime(ARawStr: ansistring): TDateTime;
procedure ExtractThumbnail;
function FormatNumber(ABuffer: PByte; ABufferSize: Integer;
AFmt: integer; AFmtStr: string; ADecodeStr: string=''): String;
function GetNumber(ABuffer: PByte; ABufferSize: Integer;
AFmt: integer): double;
function LookupRatio: double;
public
MaxTag: integer;
// Height, Width, HPosn, WPosn: integer;
FlashUsed: integer;
BuildList: integer;
MakerNote: ansistring;
TiffFmt: boolean;
// Add support for thumbnail
ThumbTrace: ansistring;
MaxThumbTag: integer;
// Added the following elements to make the structure a little more code-friendly
TraceLevel: integer;
TraceStr: ansistring;
msTraceStr: ansistring;
msAvailable: boolean;
msName:ansistring;
MakerOffset : integer;
public
constructor Create(AParent: TObject; BuildCode: integer = GenAll);
procedure Assign(source: TImageInfo);
destructor Destroy; override;
// Date/time routines
procedure AdjDateTime(ADays, AHours, AMins, ASecs: integer);
function GetImgDateTime: TDateTime;
// Manufacturer-specific
procedure AddMSTag(ATagName: String; ARawStr: ansistring; AType: word);
// Iterate through found tags
procedure ResetIterator;
procedure ResetThumbIterator;
function IterateFoundTags(TagId:integer; var retVal:TTagEntry):boolean;
function IterateFoundThumbTags(TagId: integer;
var retVal: TTagEntry): boolean;
// Collective output
procedure EXIFArrayToXML(AList: TStrings); overload;
function ToShortString: String; // Summarizes in a single line
function ToLongString(ALabelWidth: Integer = 15): String;
// Special actions
procedure AdjExifSize(AHeight, AWidth: Integer);
// Looking up tags and tag values
function GetRawFloat(ATagName: String): double;
function GetRawInt(ATagName: String): integer;
function GetTagByDesc(SearchStr: String): TTagEntry;
function LookupTagIndex(ATagName: String): integer; virtual;
// function LookupTagVal(ATagName: String): String; virtual;
function LookupTagDefn(ATagName: String): integer;
function LookupTagByDesc(ADesc: String): integer;
function LookupTagInt(ATagName: String): integer;
// Tag values as variant
property TagValue[ATagName: String]: Variant
read GetTagValue write SetTagValue; default;
// Tag values as string
property TagValueAsString[ATagName: String]: String
read GetTagValueAsString write SetTagValueAsString;
// Accessing entire tag record
property TagByID[ATagID: Word]: TTagEntry
read GetTagByID write SetTagByID;
property TagByIndex[AIndex: Integer]: TTagEntry
read GetTagByIndex write SetTagByIndex;
property TagByName[ATagName: String]: TTagEntry
read GetTagByName write SetTagByName;
property TagCount: Integer
read fiTagCount;
property Artist: String
read GetArtist write SetArtist;
property CameraMake: String
read GetCameraMake write SetCameraMake;
property CameraModel: String
read GetCameraModel write SetCameraModel;
property Copyright: String
read GetCopyright write SetCopyright;
property DateTimeOriginal: TDateTime
read GetDateTimeOriginal write SetDateTimeOriginal;
property DateTimeDigitized: TDateTime
read GetDateTimeDigitized write SetDateTimeDigitized;
property DateTimeModified: TDateTime
read GetDateTimeModified write SetDateTimeModified;
property ExifComment: String
read GetExifComment write SetExifComment;
property ExifVersion: String
read FExifVersion;
property GPSLatitude: Extended
read GetGPSLatitude write SetGPSLatitude;
property GPSLongitude: Extended
read GetGPSLongitude write SetGPSLongitude;
property ImageDescription: String
read GetImageDescription write SetImageDescription;
property Height: Integer
read GetHeight write SetHeight;
property Width: Integer
read GetWidth write SetWidth;
public
// General processing, called internally
procedure ProcessExifDir(DirStart, OffsetBase, ExifLength: LongInt;
ATagType: TTagType = ttExif; APrefix: string=''; AParentID: word=0);
procedure ProcessHWSpecific(AMakerBuff: ansistring;
TagTbl: array of TTagEntry; ADirStart, AMakerOffset: Longint;
spOffset: integer = 0);
public
// Thumbnail
procedure CreateThumbnail(AThumbnailSize: Integer = DEFAULT_THUMBNAIL_SIZE);
function HasThumbnail: boolean;
procedure ProcessThumbnail;
procedure RemoveThumbnail;
procedure LoadThumbnailFromStream(AStream: TStream);
procedure SaveThumbnailToStream(AStream: TStream);
property ThumbnailBuffer: TBytes
read FThumbnailBuffer;
property ThumbTagByID[ATagID: Word]: TTagEntry
read GetThumbTagByID write SetThumbTagByID;
property ThumbTagByIndex[AIndex: Integer]: TTagEntry
read GetThumbTagByIndex write SetThumbTagByIndex;
property ThumbTagCount: Integer
read fiThumbCount;
property ThumbTagValue[ATagName: String]: variant
read GetThumbTagValue write SetThumbTagValue;
property ThumbTagValueAsString[ATagName: String]: String
read GetThumbTagValueAsString;
property Parent: TObject
read FParent;
end; // TInfoData
var
CurTagArray: TImageInfo = nil;
fmtInt: tfmtInt = defIntFmt;
fmtReal: tfmtReal = defRealFmt;
fmtFrac: tfmtFrac = defFracFmt;
ExifNonThumbnailLength : integer;
ShowTags: integer;
ExifTrace: integer = 0;
function FindExifTagDefByID(ATagID: Word): PTagEntry;
function FindGPSTagDefByID(ATagID: Word): PTagEntry;
function FindExifTagDefByName(ATagName: String): PTagEntry;
function FindGPSTagDefByName(ATagName: String): PTagEntry;
function LookupType(idx: integer): String;
implementation
uses
dMetadata, msData;
const
// Compression Type Constants
JPEG_COMP_TYPE = 6;
TIFF_COMP_TYPE = 1;
GPSCnt = 32;
ExifTagCnt = 251; // NOTE: was 250 before, but "count" is 251
TotalTagCnt = GPSCnt + ExifTagCnt;
{ Many tags added based on Php4 source...
http://lxr.php.net/source/php4/ext/exif/exif.c
See also: https://sno.phy.queensu.ca/~phil/exiftool/TagNames/EXIF.html }
var
TagTable : array [0..ExifTagCnt-1] of TTagEntry =
// TagTable : array of TTagEntry =
// TagTable : TTagDefArray [0..ExifTagCnt] =
// TagTable: TTagDefArray =
((TID:0; TType:2; Tag:$0001; Count:1; Name:'InteroperabilityIndex' ), {0}
(TID:0; TType:7; Tag:$0002; Count:1; Name:'InteroperabilityVersion';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:4; Callback:VersionCallback),
(TID:0; TType:2; Tag:$000B; Count:1; Name:'ACDComment' ),
(TID:0; TType:4; Tag:$00FE; Count:1; Name:'NewSubfileType' ),
(TID:0; TType:3; Tag:$00FF; Count:1; Name:'SubfileType' ),
(TID:0; TType:4; Tag:$0100; ParentID:$0000; Count:1; Name:'ImageWidth'),
(TID:0; TType:4; Tag:$0101; ParentID:$0000; Count:1; Name:'ImageLength'),
(TID:0; TType:3; Tag:$0102; ParentID:$0000; Count:3; Name:'BitsPerSample'),
(TID:0; TType:3; Tag:$0103; ParentID:$0000; Count:1; Name:'Compression';
Desc:''; Code:'6:Jpeg,3:Uncompressed,1:TIFF'),
(TID:0; TType:3; Tag:$0106; ParentID:$0000; Count:1; Name:'PhotometricInterpretation';
Desc:''; Code:'1:Monochrome, 2:RGB, 6:YCbCr'),
(TID:0; TType:3; Tag:$010A; ParentID:$0000; Count:1; Name:'FillOrder'), {10}
(TID:0; TType:2; Tag:$010D; ParentID:$0000; Count:1; Name:'DocumentName'),
(TID:0; TType:2; Tag:$010E; ParentID:$0000; Count:1; Name:'ImageDescription'),
(TID:0; TType:2; Tag:$010F; ParentID:$0000; Count:1; Name:'Make'),
(TID:0; TType:2; Tag:$0110; ParentID:$0000; Count:1; Name:'Model'),
(TID:0; TType:4; Tag:$0111; ParentID:$0000; Count:1; Name:'StripOffsets'),
(TID:0; TType:3; Tag:$0112; ParentID:$0000; Count:1; Name:'Orientation';
Desc:''; Code:'1:Horizontal (normal),2:Mirror horizontal,3:Rotate 180,'+
'4:Mirror vertical,5:Mirror horizontal and rotate 270 CW,'+
'6:Rotate 90 CW,7:Mirror horizontal and rotate 90 CW,'+
'8:Rotate 270 CW'),
(TID:0; TType:3; Tag:$0115; ParentID:$0000; Count:1; Name:'SamplesPerPixel'),
(TID:0; TType:4; Tag:$0116; ParentID:$0000; Count:1; Name:'RowsPerStrip'),
(TID:0; TType:4; Tag:$0117; ParentID:$0000; Count:1; Name:'StripByteCounts'),
(TID:0; TType:3; Tag:$0118; ParentID:$0000; Count:1; Name:'MinSampleValue'), {20}
(TID:0; TType:3; Tag:$0119; ParentID:$0000; Count:1; Name:'MaxSampleValue'),
(TID:0; TType:5; Tag:$011A; ParentID:$0000; Count:1; Name:'XResolution'),
// Desc:''; Code:''; Data:''; Raw:''; FormatS:'%f'),
(TID:0; TType:5; Tag:$011B; ParentID:$0000; Count:1; Name:'YResolution'),
// Desc:''; Code:''; Data:''; Raw:''; FormatS:'%f'),
(TID:0; TType:3; Tag:$011C; ParentID:$0000; Count:1; Name:'PlanarConfiguration'),
(TID:0; TType:2; Tag:$011D; ParentID:$0000; Count:1; Name:'PageName'),
(TID:0; TType:5; Tag:$011E; ParentID:$0000; Count:1; Name:'XPosition'),
(TID:0; TType:5; Tag:$011F; ParentID:$0000; Count:1; Name:'YPosition'),
(TID:0; TType:0; Tag:$0120; ParentID:$0000; Count:1; Name:'FreeOffsets'),
(TID:0; TType:0; Tag:$0121; ParentID:$0000; Count:1; Name:'FreeByteCounts'),
(TID:0; TType:3; Tag:$0122; ParentID:$0000; Count:1; Name:'GrayReponseUnit'), {30}
(TID:0; TType:0; Tag:$0123; ParentID:$0000; Count:1; Name:'GrayReponseCurve'),
(TID:0; TType:0; Tag:$0124; ParentID:$0000; Count:1; Name:'T4Options'),
(TID:0; TType:0; Tag:$0125; ParentID:$0000; Count:1; Name:'T6Options'),
(TID:0; TType:3; Tag:$0128; ParentID:$0000; Count:1; Name:'ResolutionUnit';
Desc:''; Code:'1:None specified,2:inches,3:cm'),
(TID:0; TType:3; Tag:$0129; ParentID:$0000; Count:2; Name:'PageNumber'),
(TID:0; TType:3; Tag:$012D; ParentID:$0000; Count:768; Name:'TransferFunction'),
(TID:0; TType:2; Tag:$0131; ParentID:$0000; Count:1; Name:'Software'),
(TID:0; TType:2; Tag:$0132; ParentID:$0000; Count:1; Name:'DateTime'),
(TID:0; TType:2; Tag:$013B; ParentID:$0000; Count:1; Name:'Artist'),
(TID:0; TType:2; Tag:$013C; ParentID:$0000; Count:1; Name:'HostComputer'), {40}
(TID:0; TType:3; Tag:$013D; ParentID:$0000; Count:1; Name:'Predictor'),
(TID:0; TType:5; Tag:$013E; ParentID:$0000; Count:2; Name:'WhitePoint'),
(TID:0; TType:5; Tag:$013F; ParentID:$0000; Count:6; Name:'PrimaryChromaticities'),
(TID:0; TType:0; Tag:$0140; ParentID:$0000; Count:1; Name:'ColorMap'),
(TID:0; TType:3; Tag:$0141; ParentID:$0000; Count:2; Name:'HalfToneHints'),
(TID:0; TType:4; Tag:$0142; ParentID:$0000; Count:1; Name:'TileWidth'),
(TID:0; TType:4; Tag:$0143; ParentID:$0000; Count:1; Name:'TileLength'),
(TID:0; TType:0; Tag:$0144; ParentID:$0000; Count:1; Name:'TileOffsets'),
(TID:0; TType:0; Tag:$0145; ParentID:$0000; Count:1; Name:'TileByteCounts'),
(TID:0; TType:0; Tag:$014A; ParentID:$0000; Count:1; Name:'SubIFDs'), {50}
(TID:0; TType:3; Tag:$014C; ParentID:$0000; Count:1; Name:'InkSet'),
(TID:0; TType:0; Tag:$014D; ParentID:$0000; Count:1; Name:'InkNames'),
(TID:0; TType:0; Tag:$014E; ParentID:$0000; Count:1; Name:'NumberOfInks'),
(TID:0; TType:0; Tag:$0150; ParentID:$0000; Count:1; Name:'DotRange'),
(TID:0; TType:2; Tag:$0151; ParentID:$0000; Count:1; Name:'TargetPrinter'),
(TID:0; TType:0; Tag:$0152; ParentID:$0000; Count:1; Name:'ExtraSample'),
(TID:0; TType:0; Tag:$0153; ParentID:$0000; Count:1; Name:'SampleFormat'),
(TID:0; TType:0; Tag:$0154; ParentID:$0000; Count:1; Name:'SMinSampleValue'),
(TID:0; TType:0; Tag:$0155; ParentID:$0000; Count:1; Name:'SMaxSampleValue'),
(TID:0; TType:0; Tag:$0156; ParentID:$0000; Count:1; Name:'TransferRange'), {60}
(TID:0; TType:0; Tag:$0157; ParentID:$0000; Count:1; Name:'ClipPath'),
(TID:0; TType:0; Tag:$0158; ParentID:$0000; Count:1; Name:'XClipPathUnits'),
(TID:0; TType:0; Tag:$0159; ParentID:$0000; Count:1; Name:'YClipPathUnits'),
(TID:0; TType:0; Tag:$015A; ParentID:$0000; Count:1; Name:'Indexed'),
(TID:0; TType:0; Tag:$015B; ParentID:$0000; Count:1; Name:'JPEGTables'),
(TID:0; TType:0; Tag:$015F; ParentID:$0000; Count:1; Name:'OPIProxy'),
(TID:0; TType:0; Tag:$0200; ParentID:$0000; Count:1; Name:'JPEGProc'),
(TID:0; TType:4; Tag:$0201; ParentID:$0000; Count:1; Name:'JPEGInterchangeFormat';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:4),
(TID:0; TType:4; Tag:$0202; ParentID:$0000; Count:1; Name:'JPEGInterchangeFormatLength'),
(TID:0; TType:0; Tag:$0203; ParentID:$0000; Count:1; Name:'JPEGRestartInterval'), {70}
(TID:0; TType:0; Tag:$0205; ParentID:$0000; Count:1; Name:'JPEGLosslessPredictors'),
(TID:0; TType:0; Tag:$0206; ParentID:$0000; Count:1; Name:'JPEGPointTransforms'),
(TID:0; TType:0; Tag:$0207; ParentID:$0000; Count:1; Name:'JPEGQTables'),
(TID:0; TType:0; Tag:$0208; ParentID:$0000; Count:1; Name:'JPEGDCTables'),
(TID:0; TType:0; Tag:$0209; ParentID:$0000; Count:1; Name:'JPEGACTables'),
(TID:0; TType:5; Tag:$0211; ParentID:$0000; Count:3; Name:'YCbCrCoefficients'),
(TID:0; TType:3; Tag:$0212; ParentID:$0000; Count:2; Name:'YCbCrSubSampling'),
(TID:0; TType:3; Tag:$0213; ParentID:$0000; Count:1; Name:'YCbCrPositioning';
Desc:''; Code:'1:Centered,2:Co-sited'),
(TID:0; TType:5; Tag:$0214; ParentID:$0000; Count:6; Name:'ReferenceBlackWhite'),
(TID:0; TType:1; Tag:$02BC; ParentID:$0000; Count:1; Name:'ExtensibleMetadataPlatform'), {80}
(TID:0; TType:0; Tag:$0301; ParentID:$0000; Count:1; Name:'Gamma'),
(TID:0; TType:0; Tag:$0302; ParentID:$0000; Count:1; Name:'ICCProfileDescriptor'),
(TID:0; TType:0; Tag:$0303; ParentID:$0000; Count:1; Name:'SRGBRenderingIntent'),
(TID:0; TType:0; Tag:$0304; ParentID:$0000; Count:1; Name:'ImageTitle'),
(TID:0; TType:2; Tag:$1000; ParentID:$0000; Count:1; Name:'RelatedImageFileFormat'),
(TID:0; TType:3; Tag:$1001; ParentID:$0000; Count:1; Name:'RelatedImageWidth'),
(TID:0; TType:3; Tag:$1002; ParentID:$0000; Count:1; Name:'RelatedImageHeight'),
(TID:0; TType:0; Tag:$5001; ParentID:$0000; Count:1; Name:'ResolutionXUnit'),
(TID:0; TType:0; Tag:$5002; ParentID:$0000; Count:1; Name:'ResolutionYUnit'),
(TID:0; TType:0; Tag:$5003; ParentID:$0000; Count:1; Name:'ResolutionXLengthUnit'), {90}
(TID:0; TType:0; Tag:$5004; ParentID:$0000; Count:1; Name:'ResolutionYLengthUnit'),
(TID:0; TType:0; Tag:$5005; ParentID:$0000; Count:1; Name:'PrintFlags'),
(TID:0; TType:0; Tag:$5006; ParentID:$0000; Count:1; Name:'PrintFlagsVersion'),
(TID:0; TType:0; Tag:$5007; ParentID:$0000; Count:1; Name:'PrintFlagsCrop'),
(TID:0; TType:0; Tag:$5008; ParentID:$0000; Count:1; Name:'PrintFlagsBleedWidth'),
(TID:0; TType:0; Tag:$5009; ParentID:$0000; Count:1; Name:'PrintFlagsBleedWidthScale'),
(TID:0; TType:0; Tag:$500A; ParentID:$0000; Count:1; Name:'HalftoneLPI'),
(TID:0; TType:0; Tag:$500B; ParentID:$0000; Count:1; Name:'HalftoneLPIUnit'),
(TID:0; TType:0; Tag:$500C; ParentID:$0000; Count:1; Name:'HalftoneDegree'),
(TID:0; TType:0; Tag:$500D; ParentID:$0000; Count:1; Name:'HalftoneShape'), {100}
(TID:0; TType:0; Tag:$500E; ParentID:$0000; Count:1; Name:'HalftoneMisc'),
(TID:0; TType:0; Tag:$500F; ParentID:$0000; Count:1; Name:'HalftoneScreen'),
(TID:0; TType:0; Tag:$5010; ParentID:$0000; Count:1; Name:'JPEGQuality'),
(TID:0; TType:0; Tag:$5011; ParentID:$0000; Count:1; Name:'GridSize'),
(TID:0; TType:0; Tag:$5012; ParentID:$0000; Count:1; Name:'ThumbnailFormat'),
(TID:0; TType:0; Tag:$5013; ParentID:$0000; Count:1; Name:'ThumbnailWidth'),
(TID:0; TType:0; Tag:$5014; ParentID:$0000; Count:1; Name:'ThumbnailHeight'),
(TID:0; TType:0; Tag:$5015; ParentID:$0000; Count:1; Name:'ThumbnailColorDepth'),
(TID:0; TType:0; Tag:$5016; ParentID:$0000; Count:1; Name:'ThumbnailPlanes'),
(TID:0; TType:0; Tag:$5017; ParentID:$0000; Count:1; Name:'ThumbnailRawBytes'), {110}
(TID:0; TType:0; Tag:$5018; ParentID:$0000; Count:1; Name:'ThumbnailSize'),
(TID:0; TType:0; Tag:$5019; ParentID:$0000; Count:1; Name:'ThumbnailCompressedSize'),
(TID:0; TType:0; Tag:$501A; ParentID:$0000; Count:1; Name:'ColorTransferFunction'),
(TID:0; TType:0; Tag:$501B; ParentID:$0000; Count:1; Name:'ThumbnailData'),
(TID:0; TType:0; Tag:$5020; ParentID:$0000; Count:1; Name:'ThumbnailImageWidth'),
(TID:0; TType:0; Tag:$5021; ParentID:$0000; Count:1; Name:'ThumbnailImageHeight'),
(TID:0; TType:0; Tag:$5022; ParentID:$0000; Count:1; Name:'ThumbnailBitsPerSample'),
(TID:0; TType:0; Tag:$5023; ParentID:$0000; Count:1; Name:'ThumbnailCompression'),
(TID:0; TType:0; Tag:$5024; ParentID:$0000; Count:1; Name:'ThumbnailPhotometricInterp'),
(TID:0; TType:0; Tag:$5025; ParentID:$0000; Count:1; Name:'ThumbnailImageDescription'), {120}
(TID:0; TType:2; Tag:$5026; ParentID:$0000; Count:1; Name:'ThumbnailEquipMake'),
(TID:0; TType:2; Tag:$5027; ParentID:$0000; Count:1; Name:'ThumbnailEquipModel'),
(TID:0; TType:0; Tag:$5028; ParentID:$0000; Count:1; Name:'ThumbnailStripOffsets'),
(TID:0; TType:0; Tag:$5029; ParentID:$0000; Count:1; Name:'ThumbnailOrientation'),
(TID:0; TType:0; Tag:$502A; ParentID:$0000; Count:1; Name:'ThumbnailSamplesPerPixel'),
(TID:0; TType:0; Tag:$502B; ParentID:$0000; Count:1; Name:'ThumbnailRowsPerStrip'),
(TID:0; TType:0; Tag:$502C; ParentID:$0000; Count:1; Name:'ThumbnailStripBytesCount'),
(TID:0; TType:0; Tag:$502D; ParentID:$0000; Count:1; Name:'ThumbnailResolutionX'),
(TID:0; TType:0; Tag:$502E; ParentID:$0000; Count:1; Name:'ThumbnailResolutionY'),
(TID:0; TType:0; Tag:$502F; ParentID:$0000; Count:1; Name:'ThumbnailPlanarConfig'), {130}
(TID:0; TType:0; Tag:$5030; ParentID:$0000; Count:1; Name:'ThumbnailResolutionUnit'),
(TID:0; TType:0; Tag:$5031; ParentID:$0000; Count:1; Name:'ThumbnailTransferFunction'),
(TID:0; TType:2; Tag:$5032; ParentID:$0000; Count:1; Name:'ThumbnailSoftwareUsed'),
(TID:0; TType:2; Tag:$5033; ParentID:$0000; Count:1; Name:'ThumbnailDateTime'),
(TID:0; TType:2; Tag:$5034; ParentID:$0000; Count:1; Name:'ThumbnailArtist'),
(TID:0; TType:0; Tag:$5035; ParentID:$0000; Count:1; Name:'ThumbnailWhitePoint'),
(TID:0; TType:0; Tag:$5036; ParentID:$0000; Count:1; Name:'ThumbnailPrimaryChromaticities'),
(TID:0; TType:0; Tag:$5037; ParentID:$0000; Count:1; Name:'ThumbnailYCbCrCoefficients'),
(TID:0; TType:0; Tag:$5038; ParentID:$0000; Count:1; Name:'ThumbnailYCbCrSubsampling'),
(TID:0; TType:0; Tag:$5039; ParentID:$0000; Count:1; Name:'ThumbnailYCbCrPositioning'), {140}
(TID:0; TType:0; Tag:$503A; ParentID:$0000; Count:1; Name:'ThumbnailRefBlackWhite'),
(TID:0; TType:2; Tag:$503B; ParentID:$0000; Count:1; Name:'ThumbnailCopyRight'),
(TID:0; TType:0; Tag:$5090; ParentID:$0000; Count:1; Name:'LuminanceTable'),
(TID:0; TType:0; Tag:$5091; ParentID:$0000; Count:1; Name:'ChrominanceTable'),
(TID:0; TType:0; Tag:$5100; ParentID:$0000; Count:1; Name:'FrameDelay'),
(TID:0; TType:0; Tag:$5101; ParentID:$0000; Count:1; Name:'LoopCount'),
(TID:0; TType:0; Tag:$5110; ParentID:$0000; Count:1; Name:'PixelUnit'),
(TID:0; TType:0; Tag:$5111; ParentID:$0000; Count:1; Name:'PixelPerUnitX'),
(TID:0; TType:0; Tag:$5112; ParentID:$0000; Count:1; Name:'PixelPerUnitY'),
(TID:0; TType:0; Tag:$5113; ParentID:$0000; Count:1; Name:'PaletteHistogram'), {150}
(TID:0; TType:0; Tag:$800D; ParentID:$0000; Count:1; Name:'ImageID'),
(TID:0; TType:0; Tag:$80E3; ParentID:$0000; Count:1; Name:'Matteing'), //* obsoleted by ExtraSamples */
(TID:0; TType:0; Tag:$80E4; ParentID:$0000; Count:1; Name:'DataType'), //* obsoleted by SampleFormat */
(TID:0; TType:0; Tag:$80E5; ParentID:$0000; Count:1; Name:'ImageDepth'),
(TID:0; TType:0; Tag:$80E6; ParentID:$0000; Count:1; Name:'TileDepth'),
(TID:0; TType:3; Tag:$828D; ParentID:$0000; Count:2; Name:'CFARepeatPatternDim'),
(TID:0; TType:1; Tag:$828E; ParentID:$0000; Count:1; Name:'CFAPattern'), //count: ???
(TID:0; TType:0; Tag:$828F; ParentID:$0000; Count:1; Name:'BatteryLevel'),
(TID:0; TType:2; Tag:$8298; ParentID:$0000; Count:1; Name:'Copyright'),
(TID:0; TType:5; Tag:$829A; ParentID:$8769; Count:1; Name:'ExposureTime';
Desc:'Exposure time'; Code:''; Data:''; Raw:''; FormatS:'%s sec'; Size:8; Callback:nil), //SSpeedCallback), {160}
(TID:0; TType:5; Tag:$829D; ParentID:$8769; Count:1; Name:'FNumber';
Desc:''; Code:''; Data:''; Raw:''; FormatS:'F%0.1f'),
(TID:0; TType:4; Tag:$83BB; ParentID:$0000; Count:1; Name:'IPTC/NAA';
Desc:'IPTC/NAA'),
(TID:0; TType:0; Tag:$84E3; ParentID:$0000; Count:1; Name:'IT8RasterPadding'),
(TID:0; TType:0; Tag:$84E5; ParentID:$0000; Count:1; Name:'IT8ColorTable'),
(TID:0; TType:0; Tag:$8649; ParentID:$0000; Count:1; Name:'ImageResourceInformation'),
(TID:0; TType:4; Tag:$8769; ParentID:$0000; Count:1; Name:'ExifOffset';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:4),
(TID:0; TType:0; Tag:$8773; ParentID:$0000; Count:1; Name:'InterColorProfile'),
(TID:0; TType:3; Tag:$8822; ParentID:$8769; Count:1; Name:'ExposureProgram';
Desc:''; Code:'0:Not denfined,1:Manual,2:Program AE,3:Aperture-priority AE,'+
'4:Shutter speed priority AE,5:Creative (slow speed),'+
'6:Action (high speed),7:Portrait,8:Landscape;9:Bulb'),
(TID:0; TType:2; Tag:$8824; ParentID:$8769; Count:1; Name:'SpectralSensitivity'),
(TID:0; TType:4; Tag:$8825; ParentID:$0000; Count:1; Name:'GPSInfo';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:4), {170}
(TID:0; TType:3; Tag:$8827; ParentID:$8769; Count:1; Name:'ISOSpeedRatings'), {171}
(TID:0; TType:0; Tag:$8828; ParentID:$8769; Count:1; Name:'OECF'),
(TID:0; TType:0; Tag:$8829; ParentID:$8769; Count:1; Name:'Interlace'),
(TID:0; TType:8; Tag:$882A; ParentID:$8769; Count:1; Name:'TimeZoneOffset'),
(TID:0; TType:3; Tag:$882B; ParentID:$8769; Count:1; Name:'SelfTimerMode'),
(TID:0; TType:7; Tag:$9000; ParentID:$8769; Count:1; Name:'ExifVersion';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:4; Callback:VersionCallback),
(TID:0; TType:2; Tag:$9003; ParentID:$8769; Count:1; Name:'DateTimeOriginal'),
(TID:0; TType:2; Tag:$9004; ParentID:$8769; Count:1; Name:'DateTimeDigitized'),
(TID:0; TType:7; Tag:$9101; ParentID:$8769; Count:1; Name:'ComponentsConfiguration';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:0; Callback:CompCfgCallBack),
(TID:0; TType:5; Tag:$9102; ParentID:$8769; Count:1; Name:'CompressedBitsPerPixel'), {180}
(TID:0; TType:10; Tag:$9201; ParentID:$8769; Count:1; Name:'ShutterSpeedValue';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:0; Callback:SSpeedCallBack),
(TID:0; TType:5; Tag:$9202; ParentID:$8769; Count:1; Name:'ApertureValue';
Desc:'Aperture value'; Code:''; Data:''; Raw:''; FormatS:'F%0.1f'),
(TID:0; TType:10;Tag:$9203; ParentID:$8769; Count:1; Name:'BrightnessValue'),
(TID:0; TType:10;Tag:$9204; ParentID:$8769; Count:1; Name:'ExposureBiasValue'),
(TID:0; TType:5; Tag:$9205; ParentID:$8769; Count:1; Name:'MaxApertureValue';
Desc:''; Code:''; Data:''; Raw:''; FormatS:'F%0.1f'),
(TID:0; TType:5; Tag:$9206; ParentID:$8769; Count:1; Name:'SubjectDistance'),
(TID:0; TType:3; Tag:$9207; ParentID:$8769; Count:1; Name:'MeteringMode';
Desc:'';
Code:'0:Unknown,1:Average,2:Center,3:Spot,4:Multi-spot,5:Multi-segment,6:Partial'),
(TID:0; TType:3; Tag:$9208; ParentID:$8769; Count:1; Name:'LightSource';
Desc:'';
Code:'0:Unknown,1:Daylight,2:Fluorescent,3:Tungsten,10:Flash,17:Std A,18:Std B,19:Std C'),
(TID:0; TType:3; Tag:$9209; ParentID:$8769; Count:1; Name:'Flash';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:FlashCallBack),
(TID:0; TType:5; Tag:$920A; ParentID:$8769; Count:1; Name:'FocalLength';
Desc:'Focal length'; Code:''; Data:''; Raw:''; FormatS:'%0.1f mm'), {190}
(TID:0; TType:0; Tag:$920B; ParentID:$8769; Count:1; Name:'FlashEnergy'),
(TID:0; TType:0; Tag:$920C; ParentID:$8769; Count:1; Name:'SpatialFrequencyResponse'),
(TID:0; TType:0; Tag:$920D; ParentID:$8769; Count:1; Name:'Noise'),
(TID:0; TType:0; Tag:$920E; ParentID:$8769; Count:1; Name:'FocalPlaneXResolution';
Desc:''; code:''; Data:''; Raw:''; FormatS:'%f'; Size:0; CallBack:nil),
(TID:0; TType:0; Tag:$920F; ParentID:$8769; Count:1; Name:'FocalPlaneYResolution';
Desc:''; Code:''; Data:''; Raw:''; FormatS:'%f'; Size:0; CallBack:nil),
(TID:0; TType:0; Tag:$9210; ParentID:$8769; Count:1; Name:'FocalPlaneResolutionUnit';
Desc:''; Code:'1:None specified,2:inches,3:cm'),
(TID:0; TType:4; Tag:$9211; ParentID:$8769; Count:1; Name:'ImageNumber'),
(TID:0; TType:2; Tag:$9212; ParentID:$8769; Count:1; Name:'SecurityClassification'),
(TID:0; TType:2; Tag:$9213; ParentID:$8769; Count:1; Name:'ImageHistory'),
(TID:0; TType:3; Tag:$9214; ParentID:$8769; Count:2; Name:'SubjectLocation'), {200}
(TID:0; TType:0; Tag:$9215; ParentID:$8769; Count:1; Name:'ExposureIndex'),
(TID:0; TType:0; Tag:$9216; ParentID:$8769; Count:1; Name:'TIFF/EPStandardID'),
(TID:0; TType:0; Tag:$9217; ParentID:$8769; Count:1; Name:'SensingMethod'),
(TID:0; TType:0; Tag:$923F; ParentID:$8769; Count:1; Name:'StoNits'),
(TID:0; TType:7; Tag:$927C; ParentID:$8769; Count:1; Name:'MakerNote'),
(TID:0; TType:7; Tag:$9286; ParentID:$8769; Count:1; Name:'UserComment'),
(TID:0; TType:2; Tag:$9290; ParentID:$8769; Count:1; Name:'SubSecTime'),
(TID:0; TType:2; Tag:$9291; ParentID:$8769; Count:1; Name:'SubSecTimeOriginal'),
(TID:0; TType:2; Tag:$9292; ParentID:$8769; Count:1; Name:'SubSecTimeDigitized'),
(TID:0; TType:0; Tag:$953C; ParentID:$0000; Count:1; Name:'ImageSourceData'), // "Adobe Photoshop Document Data Block": 8BIM... {210}
(TID:0; TType:0; Tag:$9C9B; ParentID:$0000; Count:1; Name:'Title';
Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:xpTranslate), // Win XP specific, Unicode
(TID:0; TType:0; Tag:$9C9C; ParentID:$0000; Count:1; Name:'Comments';
Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:xpTranslate), // Win XP specific, Unicode
(TID:0; TType:0; Tag:$9C9D; ParentID:$0000; Count:1; Name:'Author';
Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:xpTranslate), // Win XP specific, Unicode
(TID:0; TType:0; Tag:$9C9E; ParentID:$0000; Count:1; Name:'Keywords';
Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:xpTranslate), // Win XP specific, Unicode
(TID:0; TType:0; Tag:$9C9F; ParentID:$0000; Count:1; Name:'Subject';
Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:xpTranslate), // Win XP specific, Unicode
(TID:0; TType:0; Tag:$A000; ParentID:$8769; Count:1; Name:'FlashPixVersion'),
(TID:0; TType:3; Tag:$A001; ParentID:$8769; Count:1; Name:'ColorSpace';
Desc:''; Code:'0:sBW,1:sRGB'),
(TID:0; TType:3; Tag:$A002; ParentID:$8769; Count:1; Name:'ExifImageWidth'),
(TID:0; TType:3; Tag:$A003; ParentID:$8769; Count:1; Name:'ExifImageLength'),
(TID:0; TType:2; Tag:$A004; ParentID:$8769; Count:1; Name:'RelatedSoundFile'), {220}
(TID:0; TType:0; Tag:$A005; ParentID:$8769; Count:1; Name:'InteroperabilityOffset'),
(TID:0; TType:5; Tag:$A20B; ParentID:$8769; Count:1; Name:'FlashEnergy'), // TID:0;TType:0;ICode: 2;Tag: $920B in TIFF/EP
(TID:0; TType:0; Tag:$A20C; ParentID:$8769; Count:1; Name:'SpatialFrequencyResponse'), // TID:0;TType:0;ICode: 2;Tag: $920C - -
(TID:0; TType:5; Tag:$A20E; ParentID:$8769; Count:1; Name:'FocalPlaneXResolution';
Desc:''; code:''; Data:''; Raw:''; FormatS:'%f'; Size:0; CallBack:nil),
(TID:0; TType:5; Tag:$A20F; ParentID:$8769; Count:1; Name:'FocalPlaneYResolution';
Desc:''; code:''; Data:''; Raw:''; FormatS:'%f'; Size:0; CallBack:nil),
(TID:0; TType:3; Tag:$A210; ParentID:$8769; Count:1; Name:'FocalPlaneResolutionUnit';
Desc:''; Code:'1:None specified,2:inches,3:cm'), // TID:0;TType:0;ICode: 2;Tag: $9210 - -
(TID:0; TType:0; Tag:$A211; ParentID:$8769; Count:1; Name:'ImageNumber'),
(TID:0; TType:0; Tag:$A212; ParentID:$8769; Count:1; Name:'SecurityClassification'),
(TID:0; TType:0; Tag:$A213; ParentID:$8769; Count:1; Name:'ImageHistory'),
(TID:0; TType:3; Tag:$A214; ParentID:$8769; Count:2; Name:'SubjectLocation'), {230}
(TID:0; TType:5; Tag:$A215; ParentID:$8769; Count:1; Name:'ExposureIndex'),
(TID:0; TType:0; Tag:$A216; ParentID:$8769; Count:1; Name:'TIFF/EPStandardID';
Desc:'TIFF/EPStandardID'),
(TID:0; TType:3; Tag:$A217; ParentID:$8769; Count:1; Name:'SensingMethod'; Desc:'';
Code:'0:Unknown,1:Not defined,2:One-chip color area,3:Two-chip color area,'+
'4:Three-chip color area,5:Color sequential area,7:Trilinear,'+
'8:Color-sequential linear'),
(TID:0; TType:1; Tag:$A300; ParentID:$8769; Count:1; Name:'FileSource'; Desc:'';
Code:'0:Unknown,1:Film scanner,2:Reflection print scanner,3:Digital camera'),
(TID:0; TType:7; Tag:$A301; ParentID:$8769; Count:1; Name:'SceneType';
Desc:''; Code:'0:Unknown,1:Directly Photographed'),
(TID:0; TType:7; Tag:$A302; ParentID:$8769; Count:1; Name:'CFAPattern'),
(TID:0; TType:3; Tag:$A401; ParentID:$8769; Count:1; Name:'CustomRendered';
Desc:''; Code:'0:Normal,1:Custom'),
(TID:0; TType:3; Tag:$A402; ParentID:$8769; Count:1; Name:'ExposureMode';
Desc:''; Code:'0:Auto,1:Manual,2:Auto bracket'),
(TID:0; TType:3; Tag:$A403; ParentID:$8769; Count:1; Name:'WhiteBalance';
Desc:''; Code:'0:Auto,1:Manual'),
(TID:0; TType:5; Tag:$A404; ParentID:$8769; Count:1; Name:'DigitalZoomRatio'), {240}
(TID:0; TType:3; Tag:$A405; ParentID:$8769; Count:1; Name:'FocalLengthIn35mmFilm';
Desc:'Focal Length in 35mm Film'; Code:''; Data:''; Raw:''; FormatS:'%.1f mm'),
(TID:0; TType:3; Tag:$A406; ParentID:$8769; Count:1; Name:'SceneCaptureType';
Desc:''; Code:'0:Standard,1:Landscape,2:Portrait,3:Night scene'),
(TID:0; TType:3; Tag:$A407; ParentID:$8769; Count:1; Name:'GainControl'; Desc:'';
Code:'0:None,1:Low gain up,2:High gain up,3:Low gain down,4:High gain down'),
(TID:0; TType:3; Tag:$A408; ParentID:$8769; Count:1; Name:'Contrast';
Desc:''; Code:'0:Normal,1:Soft,2:Hard'),
(TID:0; TType:3; Tag:$A409; ParentID:$8769; Count:1; Name:'Saturation';
Desc:''; Code:'0:Normal,1:Low,2:High'),
(TID:0; TType:3; Tag:$A40A; ParentID:$8769; Count:1; Name:'Sharpness';
Desc:''; Code:'0:Normal,1:Soft,2:Hard'),
(TID:0; TType:0; Tag:$A40B; ParentID:$8769; Count:1; Name:'DeviceSettingDescription'),
(TID:0; TType:3; Tag:$A40C; ParentID:$8769; Count:1; Name:'SubjectDistanceRange'; {250}
Desc:''; Code:'0:Unknown,1:Macro,2:Close view,3:Distant view'),
(TID:0; TType:2; Tag:$A420; ParentID:$8769; Count:1; Name:'ImageUniqueID';
Desc:''; Code:'0:Close view,1:Distant view'),
(TID:0; TType:0; Tag:0; ParentID:$0000; Count:1; Name:'Unknown')
);
GPSTable : array [0..GPSCnt-1] of TTagEntry = (
(TID:0; TType:1; Tag:$000; ParentID:$8825; Count:4; Name:'GPSVersionID';
Desc:''; Code:''; Data:''; RAw:''; FormatS:''; Size:0; CallBack:GpsVersionID),
(TID:0; TType:2; Tag:$001; ParentID:$8825; Count:2; Name:'GPSLatitudeRef'; Desc:''),
(TID:0; TType:5; Tag:$002; ParentID:$8825; Count:3; Name:'GPSLatitude';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:GpsPosn),
(TID:0; TType:2; Tag:$003; ParentID:$8825; Count:2; Name:'GPSLongitudeRef';Desc:''),
(TID:0; TType:5; Tag:$004; ParentID:$8825; Count:3; Name:'GPSLongitude';
Desc:''; Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:GpsPosn),
(TID:0; TType:1; Tag:$005; ParentID:$8825; Count:1; Name:'GPSAltitudeRef'; Desc:'';
Code:'0:Above Sealevel,1:Below Sealevel'),
(TID:0; TType:5; Tag:$006; ParentID:$8825; Count:1; Name:'GPSAltitude'; Desc:'';
Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:GpsAltitude),
(TID:0; TType:5; Tag:$007; ParentID:$8825; Count:3; Name:'GPSTimeStamp'; Desc:'';
Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:CvtTime),
(TID:0; TType:2; Tag:$008; ParentID:$8825; Count:1; Name:'GPSSatellites'; Desc:''),
(TID:0; TType:2; Tag:$009; ParentID:$8825; Count:2; Name:'GPSStatus';
Desc:''; Code:'A:Active;V:Void'),
(TID:0; TType:2; Tag:$00A; ParentID:$8825; Count:2; Name:'GPSMeasureMode';
Desc:''; Code:'2:2D,3:3D'),
(TID:0; TType:5; Tag:$00B; ParentID:$8825; Count:1; Name:'GPSDOP'; Desc:''),
(TID:0; TType:2; Tag:$00C; ParentID:$8825; Count:2; Name:'GPSSpeedRef';
Desc:''; Code:'K:km/h,M:mph,N:knots'),
(TID:0; TType:5; Tag:$00D; ParentID:$8825; Count:1; Name:'GPSSpeed'; Desc:''),
(TID:0; TType:2; Tag:$00E; ParentID:$8825; Count:2; Name:'GPSTrackRef';
Desc:''; Code:'M:Magnetic North,T:True North'),
(TID:0; TType:5; Tag:$00F; ParentID:$8825; Count:1; Name:'GPSTrack'; Desc:''),
(TID:0; TType:2; Tag:$010; ParentID:$8825; Count:2; Name:'GPSImageDirectionRef';
Desc:''; Code:'M:Magnetic North,T:True North'),
(TID:0; TType:5; Tag:$011; ParentID:$8825; Count:1; Name:'GPSImageDirection'; Desc:''),
(TID:0; TType:2; Tag:$012; ParentID:$8825; Count:1; Name:'GPSMapDatum'; Desc:''),
(TID:0; TType:2; Tag:$013; ParentID:$8825; Count:2; Name:'GPSDestLatitudeRef';
Desc:''; Code:'N:North,S:South'),
(TID:0; TType:5; Tag:$014; ParentID:$8825; Count:3; Name:'GPSDestLatitude'; Desc:'';
Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:GpsPosn),
(TID:0; TType:2; Tag:$015; ParentID:$8825; Count:2; Name:'GPSDestLongitudeRef';
Desc:''; Code: 'E:East,W:West'),
(TID:0; TType:5; Tag:$016; ParentID:$8825; Count:3; Name:'GPSDestLongitude'; Desc:'';
Code:''; Data:''; Raw:''; FormatS:''; Size:0; CallBack:GpsPosn),
(TID:0; TType:2; Tag:$017; ParentID:$8825; Count:2; Name:'GPSDestBearingRef';
Desc:''; Code:'M:Magnetic North,T:True North'),
(TID:0; TType:5; Tag:$018; ParentID:$8825; Count:1; Name:'GPSDestBearing'; Desc:''),
(TID:0; TType:2; Tag:$019; ParentID:$8825; Count:2; Name:'GPSDestDistanceRef';
Desc:''; Code:'K:Kilometers,M:Miles,N:Nautic Miles'),
(TID:0; TType:5; Tag:$01A; ParentID:$8825; Count:1; Name:'GPSDestDistance'; Desc:''),
(TID:0; TType:7; Tag:$01B; ParentID:$8825; Count:1; Name:'GPSProcessingMode'; Desc:''),
(TID:0; TType:7; Tag:$01C; ParentID:$8825; Count:1; Name:'GPSAreaInformation'; Desc:''),
(TID:0; TType:2; Tag:$01D; ParentID:$8825; Count:7; Name:'GPSDateStamp'; Desc:''),
(TID:0; TType:3; Tag:$01E; ParentID:$8825; Count:1; Name:'GPSDifferential';
Desc:''; Code:'0:No Correction,1:Differential Correction'),
(TID:0; TType:5; Tag:$01F; ParentID:$8825; Count:1; Name:'GPSHPositioningError'; Desc:'')
);
tagInit : boolean = false;
function FindExifTagDefByName(ATagName: String): PTagEntry;
var
i: Integer;
begin
for i:=0 to High(TagTable) do begin
Result := @TagTable[i];
if AnsiSameText(Result^.Name, ATagName) then
exit;
end;
Result := nil;
end;
function FindExifTagDefByID(ATagID: word): PTagEntry;
var
i: Integer;
begin
for i:=0 to High(TagTable) do begin
Result := @TagTable[i];
if Result^.Tag = ATagID then
exit;
end;
Result := nil;
end;
function FindGpsTagDefByName(ATagName: String): PTagEntry;
var
i: Integer;
begin
for i:=0 to High(GpsTable) do begin
Result := @GpsTable[i];
if AnsiSameText(Result^.Name, ATagName) then
exit;
end;
Result := nil;
end;
function FindGpsTagDefByID(ATagID: word): PTagEntry;
var
i: Integer;
begin
for i:=0 to High(GpsTable) do begin
Result := @GpsTable[i];
if Result^.Tag = ATagID then
exit;
end;
Result := nil;
end;
Procedure FixTagTable(var tags:array of TTagEntry);
var i:integer;
begin
for i := low(tags) to high(tags) do
begin
if Length(tags[i].Desc) <= 0 then
tags[i].Desc := tags[i].Name;
end;
end;
Procedure FixTagTableParse(var tags:array of TTagEntry);
var i:integer;
begin
for i := low(tags) to high(tags) do
begin
if Length(tags[i].Desc) <= 0 then
tags[i].Desc := InsertSpaces(tags[i].Name);
end;
end;
procedure LoadTagDescs(fancy:boolean = false);
begin
if tagInit
then exit
else tagInit := true;
if fancy then
begin
FixTagTableParse(TagTable);
FixTagTableParse(GPSTable);
end
else
begin
FixTagTable(TagTable);
FixTagTable(GPSTable);
end;
end;
function LookupMTagID(idx:integer; ManuTable: array of TTagEntry):integer;
var
i: integer;
begin
result := -1;
for i := 0 to high(ManuTable) do
if ManuTable[i].Tag = idx then
begin
result := i;
break;
end;
end;
function LookupType(idx: integer): String;
var
i: integer;
begin
result := 'Unknown';
// for i := 0 to (Sizeof(ProcessTable) div SizeOf(TTagEntry))-1 do
for i := 0 to High(ProcessTable) do
if ProcessTable[i].Tag = idx then begin
Result := ProcessTable[i].Desc;
exit;
end;
end;
function LookupTagDefByID(idx: integer; ATagType: TTagType = ttExif): integer;
var
i:integer;
begin
Result := -1;
case ATagType of
ttExif, ttThumb:
for i := 0 to ExifTagCnt-1 do
if TagTable[i].Tag = idx then begin
Result := i;
break;
end;
ttGps:
for i := 0 to GPSCnt-1 do
if GPSTable[i].Tag = idx then begin
Result := i;
break;
end;
end;
end;
function FetchTagDefByID(idx: integer; ATagType: TTagType = ttExif): TTagEntry;
var
i: integer;
begin
Result := TagTable[ExifTagCnt-1];
case ATagType of
ttExif, ttThumb:
for i := 0 to ExifTagCnt-1 do
if TagTable[i].Tag = idx then begin
result := TagTable[i];
break;
end;
ttGps:
for i := 0 to GPSCnt-1 do
if GPSTable[i].Tag = idx then begin
result := GPSTable[i];
break;
end;
end;
end;
function LookupCode(ATagID: Word; ATagType: TTagType=ttExif): String; overload;
var
i:integer;
begin
Result := '';
case ATagType of
ttExif, ttThumb:
for i := 0 to ExifTagCnt-1 do
if TagTable[i].Tag = ATagID then begin
Result := TagTable[i].Code;
break;
end;
ttGps:
for i := 0 to GPSCnt-1 do
if GPSTable[i].Tag = ATagID then begin
Result := GPSTable[i].Code;
break;
end;
end;
end;
function LookupCode(ATagID: Word; TagTbl: array of TTagEntry): String; overload;
var
i: integer;
begin
Result := '';
for i := 0 to High(TagTbl) do
if TagTbl[i].Tag = ATagID then begin
Result := TagTbl[i].Code;
break;
end;
end;
{ Tries to find the string AValue within TTagEntry.Code and
returns the numerical value assigned to the Code (before the colon).
Example:
The codes defined for the Tag "ResolutionUnits" are
'1:None Specified,2:Inch,3:Centimeter'.
If AValue is 'Inch' then the value 2 is returned. }
function GetTagCode(ATag: TTagEntry; AValue: String): Integer;
var
i: Integer;
begin
if ATag.Code <> '' then
Result := FindTextIndexInCode(AValue, ATag.Code)
else
if TryStrToInt(AValue, i) then
Result := i
else
Result := -1;
end;
//------------------------------------------------------------------------------
// TEndInd
//
// Here we implement the Endian Independent layer. Outside of these methods
// we don't care about endian issues.
//------------------------------------------------------------------------------
function TEndInd.GetDataBuff: AnsiString;
begin
result := FData;
end;
procedure TEndInd.SetDataBuff(const Value: AnsiString);
begin
FData := Value;
end;
procedure TEndInd.WriteInt16(var buff: AnsiString; int,posn: integer);
begin
if MotorolaOrder then
begin
buff[posn+1] := ansichar(int mod 256);
buff[posn] := ansichar(int div 256);
end
else
begin
buff[posn] := ansichar(int mod 256);
buff[posn+1] := ansichar(int div 256);
end
end;
procedure TEndInd.WriteInt32(var buff: ansistring; int, posn: longint);
begin
if MotorolaOrder then
begin
buff[posn+3] := ansichar(int mod 256);
buff[posn+2] := ansichar((int shr 8) mod 256);
buff[posn+1] := ansichar((int shr 16) mod 256);