*/
class Exif {
- const BYTE = 1; //!< An 8-bit (1-byte) unsigned integer.
- const ASCII = 2; //!< An 8-bit byte containing one 7-bit ASCII code. The final byte is terminated with NULL.
- const SHORT = 3; //!< A 16-bit (2-byte) unsigned integer.
- const LONG = 4; //!< A 32-bit (4-byte) unsigned integer.
- const RATIONAL = 5; //!< Two LONGs. The first LONG is the numerator and the second LONG expresses the denominator
- const UNDEFINED = 7; //!< An 8-bit byte that can take any value depending on the field definition
- const SLONG = 9; //!< A 32-bit (4-byte) signed integer (2's complement notation),
- const SRATIONAL = 10; //!< Two SLONGs. The first SLONG is the numerator and the second SLONG is the denominator.
- const IGNORE = -1; // A fake value for things we don't want or don't support.
+ const BYTE = 1; //!< An 8-bit (1-byte) unsigned integer.
+ const ASCII = 2; //!< An 8-bit byte containing one 7-bit ASCII code. The final byte is terminated with NULL.
+ const SHORT = 3; //!< A 16-bit (2-byte) unsigned integer.
+ const LONG = 4; //!< A 32-bit (4-byte) unsigned integer.
+ const RATIONAL = 5; //!< Two LONGs. The first LONG is the numerator and the second LONG expresses the denominator
+ const UNDEFINED = 7; //!< An 8-bit byte that can take any value depending on the field definition
+ const SLONG = 9; //!< A 32-bit (4-byte) signed integer (2's complement notation),
+ const SRATIONAL = 10; //!< Two SLONGs. The first SLONG is the numerator and the second SLONG is the denominator.
+ const IGNORE = -1; // A fake value for things we don't want or don't support.
//@{
/* @var array
}
/**
- * Collapse some fields together.
- * This converts some fields from exif form, to a more friendly form.
- * For example GPS latitude to a single number.
- *
- * The rationale behind this is that we're storing data, not presenting to the user
- * For example a longitude is a single number describing how far away you are from
- * the prime meridian. Well it might be nice to split it up into minutes and seconds
- * for the user, it doesn't really make sense to split a single number into 4 parts
- * for storage. (degrees, minutes, second, direction vs single floating point number).
- *
- * Other things this might do (not really sure if they make sense or not):
- * Dates -> mediawiki date format.
- * convert values that can be in different units to be in one standardized unit.
- *
- * As an alternative approach, some of this could be done in the validate phase
- * if we make up our own types like Exif::DATE.
- */
+ * Collapse some fields together.
+ * This converts some fields from exif form, to a more friendly form.
+ * For example GPS latitude to a single number.
+ *
+ * The rationale behind this is that we're storing data, not presenting to the user
+ * For example a longitude is a single number describing how far away you are from
+ * the prime meridian. Well it might be nice to split it up into minutes and seconds
+ * for the user, it doesn't really make sense to split a single number into 4 parts
+ * for storage. (degrees, minutes, second, direction vs single floating point number).
+ *
+ * Other things this might do (not really sure if they make sense or not):
+ * Dates -> mediawiki date format.
+ * convert values that can be in different units to be in one standardized unit.
+ *
+ * As an alternative approach, some of this could be done in the validate phase
+ * if we make up our own types like Exif::DATE.
+ */
function collapseData( ) {
$this->exifGPStoNumber( 'GPSLatitude' );
}
/**
- * Do userComment tags and similar. See pg. 34 of exif standard.
- * basically first 8 bytes is charset, rest is value.
- * This has not been tested on any shift-JIS strings.
- * @param $prop String prop name.
- */
+ * Do userComment tags and similar. See pg. 34 of exif standard.
+ * basically first 8 bytes is charset, rest is value.
+ * This has not been tested on any shift-JIS strings.
+ * @param $prop String prop name.
+ */
private function charCodeString ( $prop ) {
if ( isset( $this->mFilteredExifData[$prop] ) ) {
}
}
/**
- * Convert an Exif::UNDEFINED from a raw binary string
- * to its value. This is sometimes needed depending on
- * the type of UNDEFINED field
- * @param $prop String name of property
- */
+ * Convert an Exif::UNDEFINED from a raw binary string
+ * to its value. This is sometimes needed depending on
+ * the type of UNDEFINED field
+ * @param $prop String name of property
+ */
private function exifPropToOrd ( $prop ) {
if ( isset( $this->mFilteredExifData[$prop] ) ) {
$this->mFilteredExifData[$prop] = ord( $this->mFilteredExifData[$prop] );
}
}
/**
- * Convert gps in exif form to a single floating point number
- * for example 10 degress 20`40`` S -> -10.34444
- * @param String $prop a gps coordinate exif tag name (like GPSLongitude)
- */
+ * Convert gps in exif form to a single floating point number
+ * for example 10 degress 20`40`` S -> -10.34444
+ * @param String $prop a gps coordinate exif tag name (like GPSLongitude)
+ */
private function exifGPStoNumber ( $prop ) {
$loc =& $this->mFilteredExifData[$prop];
$dir =& $this->mFilteredExifData[$prop . 'Ref'];