ExifUtility.cc File Reference

#include "ExifUtility.h"
#include "QGCLoggingCategory.h"
#include <cassert>
#include <cmath>

Include dependency graph for ExifUtility.cc:

Go to the source code of this file.

Namespaces
namespace	ExifUtility

Functions
ExifData *	ExifUtility::loadFromBuffer (const QByteArray &buffer)
ExifData *	ExifUtility::createNew ()
bool	ExifUtility::saveToBuffer (ExifData *data, QByteArray &buffer)
bool	ExifUtility::isJpeg (const QByteArray &buffer)
	Check if a buffer is a JPEG image (starts with 0xFF 0xD8)
bool	ExifUtility::isTiff (const QByteArray &buffer)
bool	ExifUtility::hasExifData (const QByteArray &buffer)
	Check if a buffer contains valid JPEG with EXIF data.
QString	ExifUtility::readString (ExifData *data, ExifTag tag, ExifIfd ifd=EXIF_IFD_0)
	Read a string value from an EXIF tag.
int	ExifUtility::readShort (ExifData *data, ExifTag tag, ExifIfd ifd=EXIF_IFD_0)
	Read a short (16-bit) value from an EXIF tag.
double	ExifUtility::readRational (ExifData *data, ExifTag tag, ExifIfd ifd=EXIF_IFD_0)
	Read a rational value from an EXIF tag.
ExifEntry *	ExifUtility::initTag (ExifData *data, ExifIfd ifd, ExifTag tag)
ExifEntry *	ExifUtility::createTag (ExifData *data, ExifIfd ifd, ExifTag tag, ExifFormat format, unsigned long components)
double	ExifUtility::gpsRationalToDecimal (ExifEntry *entry, ExifByteOrder order)
	Convert GPS coordinate from EXIF rational format (deg/min/sec) to decimal degrees.
void	ExifUtility::writeGpsCoordinate (ExifEntry *entry, ExifByteOrder order, double value)
	Write GPS coordinate as EXIF rationals (degrees, minutes, seconds)
void	ExifUtility::writeRational (ExifEntry *entry, ExifByteOrder order, double value, int denominator=100)
	Write a single rational value to an entry.
void	ExifUtility::writeGpsRef (ExifEntry *entry, char value)
	Write an ASCII character to a GPS reference entry (N/S/E/W)
void	ExifUtility::writeGpsAltRef (ExifEntry *entry, unsigned char value)
	Write a byte value to a GPS altitude reference entry (0=above, 1=below sea level)
bool	ExifUtility::writeDateTimeOriginal (ExifData *data, const QDateTime &dateTime)