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//-------------------------------------------------------------------------- // Include file for jhead program. // // This include file only defines stuff that goes across modules. // I like to keep the definitions for macros and structures as close to // where they get used as possible, so include files only get stuff that // gets used in more than one file. //-------------------------------------------------------------------------- #define _CRT_SECURE_NO_DEPRECATE 1 #include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> #include <errno.h> #include <ctype.h> //-------------------------------------------------------------------------- #ifdef _WIN32 #include <sys/utime.h> #else #include <utime.h> #include <sys/types.h> #include <unistd.h> #include <errno.h> #include <limits.h> #endif typedef unsigned char uchar; #ifndef TRUE #define TRUE 1 #define FALSE 0 #endif #define MAX_COMMENT_SIZE 2000 #ifdef _WIN32 #define PATH_MAX _MAX_PATH #define SLASH '\\' #else #ifndef PATH_MAX #define PATH_MAX 1024 #endif #define SLASH '/' #endif //-------------------------------------------------------------------------- // This structure is used to store jpeg file sections in memory. typedef struct { uchar * Data; int Type; unsigned Size; }Section_t; extern int ExifSectionIndex; extern int DumpExifMap; #define MAX_DATE_COPIES 10 //-------------------------------------------------------------------------- // This structure stores Exif header image elements in a simple manner // Used to store camera data as extracted from the various ways that it can be // stored in an exif header typedef struct { char FileName [PATH_MAX+1]; time_t FileDateTime; struct { // Info in the jfif header. // This info is not used much - jhead used to just replace it with default // values, and over 10 years, only two people pointed this out. char Present; char ResolutionUnits; short XDensity; short YDensity; }JfifHeader; unsigned FileSize; char CameraMake [32]; char CameraModel [40]; char DateTime [20]; int Height, Width; int Orientation; int IsColor; int Process; int FlashUsed; float FocalLength; float ExposureTime; float ApertureFNumber; float Distance; float CCDWidth; float ExposureBias; float DigitalZoomRatio; int FocalLength35mmEquiv; // Exif 2.2 tag - usually not present. int Whitebalance; int MeteringMode; int ExposureProgram; int ExposureMode; int ISOequivalent; int LightSource; int DistanceRange; float xResolution; float yResolution; int ResolutionUnit; char Comments[MAX_COMMENT_SIZE]; int CommentWidthchars; // If nonzero, widechar comment, indicates number of chars. unsigned ThumbnailOffset; // Exif offset to thumbnail unsigned ThumbnailSize; // Size of thumbnail. unsigned LargestExifOffset; // Last exif data referenced (to check if thumbnail is at end) char ThumbnailAtEnd; // Exif header ends with the thumbnail // (we can only modify the thumbnail if its at the end) int ThumbnailSizeOffset; int DateTimeOffsets[MAX_DATE_COPIES]; int numDateTimeTags; int GpsInfoPresent; char GpsLat[31]; char GpsLong[31]; char GpsAlt[20]; }ImageInfo_t; #define EXIT_FAILURE 1 #define EXIT_SUCCESS 0 #define MODE_SAVETHUMB 0 #define MODE_REPLACETHUMB 1 // jpgfile.c functions typedef enum { READ_METADATA = 1, READ_IMAGE = 2, READ_ALL = 3 }ReadMode_t; typedef enum{ THUMB_NOTREPRESENT=-5, THUMB_NOTCONTAIN, THUMB_NOTREAD, THUMB_NOTWRITE, THUMB_TOOLARGE }ThumbResult_t; // prototypes for jhead.cpp functions void ErrFatal(char * msg); void ErrNonfatal(char * msg, int a1, int a2); void FileTimeAsString(char * TimeStr); int ProcessFile(const char * FileName, char * ThumbName, int Mode); // Prototypes for exif.c functions. void process_EXIF (unsigned char * CharBuf, unsigned int length); int RemoveThumbnail(unsigned char * ExifSection); void ShowImageInfo(int ShowFileInfo); void ShowConciseImageInfo(void); const char * ClearOrientation(void); void PrintFormatNumber(void * ValuePtr, int Format, int ByteCount); double ConvertAnyFormat(void * ValuePtr, int Format); int Get16u(void * Short); unsigned Get32u(void * Long); int Get32s(void * Long); void Put32u(void * Value, unsigned PutValue); void create_EXIF(void); //-------------------------------------------------------------------------- // Exif format descriptor stuff extern const int BytesPerFormat[]; #define NUM_FORMATS 12 #define FMT_BYTE 1 #define FMT_STRING 2 #define FMT_USHORT 3 #define FMT_ULONG 4 #define FMT_URATIONAL 5 #define FMT_SBYTE 6 #define FMT_UNDEFINED 7 #define FMT_SSHORT 8 #define FMT_SLONG 9 #define FMT_SRATIONAL 10 #define FMT_SINGLE 11 #define FMT_DOUBLE 12 // makernote.c prototypes extern void ProcessMakerNote(unsigned char * DirStart, int ByteCount, unsigned char * OffsetBase, unsigned ExifLength); // gpsinfo.c prototypes void ProcessGpsInfo(unsigned char * ValuePtr, int ByteCount, unsigned char * OffsetBase, unsigned ExifLength); // iptc.c prototpyes void show_IPTC (unsigned char * CharBuf, unsigned int length); void ShowXmp(Section_t XmpSection); // Prototypes for myglob.c module #ifdef _WIN32 void MyGlob(const char * Pattern , void (*FileFuncParm)(const char * FileName)); void SlashToNative(char * Path); #endif // Prototypes for paths.c module int EnsurePathExists(const char * FileName); void CatPath(char * BasePath, const char * FilePath); // Prototypes from jpgfile.c int ReadJpegSections (FILE * infile, ReadMode_t ReadMode); void DiscardData(void); int ReadJpegFile(const char * FileName, ReadMode_t ReadMode); int SaveThumbnail(char * ThumbFileName); int ReplaceThumbnail(const char * ThumbFileName); int RemoveSectionType(int SectionType); void WriteJpegFile(const char * FileName); Section_t * FindSection(int SectionType); Section_t * CreateSection(int SectionType, unsigned char * Data, int size); void ResetJpgfile(void); // Variables from jhead.c used by exif.c extern ImageInfo_t ImageInfo; extern int ShowTags; //-------------------------------------------------------------------------- // JPEG markers consist of one or more 0xFF bytes, followed by a marker // code byte (which is not an FF). Here are the marker codes of interest // in this program. (See jdmarker.c for a more complete list.) //-------------------------------------------------------------------------- #define M_SOF0 0xC0 // Start Of Frame N #define M_SOF1 0xC1 // N indicates which compression process #define M_SOF2 0xC2 // Only SOF0-SOF2 are now in common use #define M_SOF3 0xC3 #define M_SOF5 0xC5 // NB: codes C4 and CC are NOT SOF markers #define M_SOF6 0xC6 #define M_SOF7 0xC7 #define M_SOF9 0xC9 #define M_SOF10 0xCA #define M_SOF11 0xCB #define M_SOF13 0xCD #define M_SOF14 0xCE #define M_SOF15 0xCF #define M_SOI 0xD8 // Start Of Image (beginning of datastream) #define M_EOI 0xD9 // End Of Image (end of datastream) #define M_SOS 0xDA // Start Of Scan (begins compressed data) #define M_JFIF 0xE0 // Jfif marker #define M_EXIF 0xE1 // Exif marker. Also used for XMP data! #define M_XMP 0x10E1 // Not a real tag (same value in file as Exif!) #define M_COM 0xFE // COMment #define M_DQT 0xDB #define M_DHT 0xC4 #define M_DRI 0xDD #define M_IPTC 0xED // IPTC marker
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