* @bug 1555, 1947
*/
+/**#@+
+ * Exif tag type definition
+ */
+define('MW_EXIF_BYTE', 1); # An 8-bit unsigned integer.
+define('MW_EXIF_ASCII', 2); # An 8-bit byte containing one 7-bit ASCII code. The final byte is terminated with NULL.
+define('MW_EXIF_SHORT', 3); # A 16-bit (2-byte) unsigned integer.
+define('MW_EXIF_LONG', 4); # A 32-bit (4-byte) unsigned integer.
+define('MW_EXIF_RATIONAL', 5); # Two LONGs. The first LONG is the numerator and the second LONG expresses the denominator
+define('MW_EXIF_UNDEFINED', 7); # An 8-bit byte that can take any value depending on the field definition
+define('MW_EXIF_SLONG', 9); # A 32-bit (4-byte) signed integer (2's complement notation),
+define('MW_EXIF_SRATIONAL', 10); # Two SLONGs. The first SLONG is the numerator and the second SLONG is the denominator.
+/**#@-*/
+
+
/**
* @package MediaWiki
* @subpackage Metadata
* Constructor
*/
function Exif() {
- /**#@+
- * Exif tag type definition
- */
- define('BYTE', 1); # An 8-bit unsigned integer.
- define('ASCII', 2); # An 8-bit byte containing one 7-bit ASCII code. The final byte is terminated with NULL.
- define('SHORT', 3); # A 16-bit (2-byte) unsigned integer.
- define('LONG', 4); # A 32-bit (4-byte) unsigned integer.
- define('RATIONAL', 5); # Two LONGs. The first LONG is the numerator and the second LONG expresses the denominator
- define('UNDEFINED', 7); # An 8-bit byte that can take any value depending on the field definition
- define('SLONG', 9); # A 32-bit (4-byte) signed integer (2's complement notation),
- define('SRATIONAL', 10); # Two SLONGs. The first SLONG is the numerator and the second SLONG is the denominator.
- /**#@-*/
-
/**
* Page numbers here refer to pages in the EXIF 2.2 standard
*
'tiff' => array(
# Tags relating to image structure
'structure' => array(
- 'ImageWidth' => SHORT.','.LONG, # Image width
- 'ImageLength' => SHORT.','.LONG, # Image height
- 'BitsPerSample' => SHORT, # Number of bits per component
+ 'ImageWidth' => MW_EXIF_SHORT.','.MW_EXIF_LONG, # Image width
+ 'ImageLength' => MW_EXIF_SHORT.','.MW_EXIF_LONG, # Image height
+ 'BitsPerSample' => MW_EXIF_SHORT, # Number of bits per component
# "When a primary image is JPEG compressed, this designation is not"
# "necessary and is omitted." (p23)
- 'Compression' => SHORT, # Compression scheme #p23
- 'PhotometricInterpretation' => SHORT, # Pixel composition #p23
- 'Orientation' => SHORT, # Orientation of image #p24
- 'SamplesPerPixel' => SHORT, # Number of components
- 'PlanarConfiguration' => SHORT, # Image data arrangement #p24
- 'YCbCrSubSampling' => SHORT, # Subsampling ratio of Y to C #p24
- 'YCbCrPositioning' => SHORT, # Y and C positioning #p24-25
- 'XResolution' => RATIONAL, # Image resolution in width direction
- 'YResolution' => RATIONAL, # Image resolution in height direction
- 'ResolutionUnit' => SHORT, # Unit of X and Y resolution #(p26)
+ 'Compression' => MW_EXIF_SHORT, # Compression scheme #p23
+ 'PhotometricInterpretation' => MW_EXIF_SHORT, # Pixel composition #p23
+ 'Orientation' => MW_EXIF_SHORT, # Orientation of image #p24
+ 'SamplesPerPixel' => MW_EXIF_SHORT, # Number of components
+ 'PlanarConfiguration' => MW_EXIF_SHORT, # Image data arrangement #p24
+ 'YCbCrSubSampling' => MW_EXIF_SHORT, # Subsampling ratio of Y to C #p24
+ 'YCbCrPositioning' => MW_EXIF_SHORT, # Y and C positioning #p24-25
+ 'XResolution' => MW_EXIF_RATIONAL, # Image resolution in width direction
+ 'YResolution' => MW_EXIF_RATIONAL, # Image resolution in height direction
+ 'ResolutionUnit' => MW_EXIF_SHORT, # Unit of X and Y resolution #(p26)
),
# Tags relating to recording offset
'offset' => array(
- 'StripOffsets' => SHORT.','.LONG, # Image data location
- 'RowsPerStrip' => SHORT.','.LONG, # Number of rows per strip
- 'StripByteCounts' => SHORT.','.LONG, # Bytes per compressed strip
- 'JPEGInterchangeFormat' => SHORT.','.LONG, # Offset to JPEG SOI
- 'JPEGInterchangeFormatLength' => SHORT.','.LONG, # Bytes of JPEG data
+ 'StripOffsets' => MW_EXIF_SHORT.','.MW_EXIF_LONG, # Image data location
+ 'RowsPerStrip' => MW_EXIF_SHORT.','.MW_EXIF_LONG, # Number of rows per strip
+ 'StripByteCounts' => MW_EXIF_SHORT.','.MW_EXIF_LONG, # Bytes per compressed strip
+ 'JPEGInterchangeFormat' => MW_EXIF_SHORT.','.MW_EXIF_LONG, # Offset to JPEG SOI
+ 'JPEGInterchangeFormatLength' => MW_EXIF_SHORT.','.MW_EXIF_LONG, # Bytes of JPEG data
),
# Tags relating to image data characteristics
'characteristics' => array(
- 'TransferFunction' => SHORT, # Transfer function
- 'WhitePoint' => RATIONAL, # White point chromaticity
- 'PrimaryChromaticities' => RATIONAL, # Chromaticities of primarities
- 'YCbCrCoefficients' => RATIONAL, # Color space transformation matrix coefficients #p27
- 'ReferenceBlackWhite' => RATIONAL # Pair of black and white reference values
+ 'TransferFunction' => MW_EXIF_SHORT, # Transfer function
+ 'WhitePoint' => MW_EXIF_RATIONAL, # White point chromaticity
+ 'PrimaryChromaticities' => MW_EXIF_RATIONAL, # Chromaticities of primarities
+ 'YCbCrCoefficients' => MW_EXIF_RATIONAL, # Color space transformation matrix coefficients #p27
+ 'ReferenceBlackWhite' => MW_EXIF_RATIONAL # Pair of black and white reference values
),
# Other tags
'other' => array(
- 'DateTime' => ASCII, # File change date and time
- 'ImageDescription' => ASCII, # Image title
- 'Make' => ASCII, # Image input equipment manufacturer
- 'Model' => ASCII, # Image input equipment model
- 'Software' => ASCII, # Software used
- 'Artist' => ASCII, # Person who created the image
- 'Copyright' => ASCII, # Copyright holder
+ 'DateTime' => MW_EXIF_ASCII, # File change date and time
+ 'ImageDescription' => MW_EXIF_ASCII, # Image title
+ 'Make' => MW_EXIF_ASCII, # Image input equipment manufacturer
+ 'Model' => MW_EXIF_ASCII, # Image input equipment model
+ 'Software' => MW_EXIF_ASCII, # Software used
+ 'Artist' => MW_EXIF_ASCII, # Person who created the image
+ 'Copyright' => MW_EXIF_ASCII, # Copyright holder
),
),
'version' => array(
# TODO: NOTE: Nonexistence of this field is taken to mean nonconformance
# to the EXIF 2.1 AND 2.2 standards
- 'ExifVersion' => UNDEFINED, # Exif version
- 'FlashpixVersion' => UNDEFINED, # Supported Flashpix version #p32
+ 'ExifVersion' => MW_EXIF_UNDEFINED, # Exif version
+ 'FlashpixVersion' => MW_EXIF_UNDEFINED, # Supported Flashpix version #p32
),
# Tags relating to Image Data Characteristics
'characteristics' => array(
- 'ColorSpace' => SHORT, # Color space information #p32
+ 'ColorSpace' => MW_EXIF_SHORT, # Color space information #p32
),
# Tags relating to image configuration
'configuration' => array(
- 'ComponentsConfiguration' => UNDEFINED, # Meaning of each component #p33
- 'CompressedBitsPerPixel' => RATIONAL, # Image compression mode
- 'PixelYDimension' => SHORT.','.LONG, # Valid image width
- 'PixelXDimension' => SHORT.','.LONG, # Valind image height
+ 'ComponentsConfiguration' => MW_EXIF_UNDEFINED, # Meaning of each component #p33
+ 'CompressedBitsPerPixel' => MW_EXIF_RATIONAL, # Image compression mode
+ 'PixelYDimension' => MW_EXIF_SHORT.','.MW_EXIF_LONG, # Valid image width
+ 'PixelXDimension' => MW_EXIF_SHORT.','.MW_EXIF_LONG, # Valind image height
),
# Tags relating to related user information
'user' => array(
- 'MakerNote' => UNDEFINED, # Manufacturer notes
- 'UserComment' => UNDEFINED, # User comments #p34
+ 'MakerNote' => MW_EXIF_UNDEFINED, # Manufacturer notes
+ 'UserComment' => MW_EXIF_UNDEFINED, # User comments #p34
),
# Tags relating to related file information
'related' => array(
- 'RelatedSoundFile' => ASCII, # Related audio file
+ 'RelatedSoundFile' => MW_EXIF_ASCII, # Related audio file
),
# Tags relating to date and time
'dateandtime' => array(
- 'DateTimeOriginal' => ASCII, # Date and time of original data generation #p36
- 'DateTimeDigitized' => ASCII, # Date and time of original data generation
- 'SubSecTime' => ASCII, # DateTime subseconds
- 'SubSecTimeOriginal' => ASCII, # DateTimeOriginal subseconds
- 'SubSecTimeDigitized' => ASCII, # DateTimeDigitized subseconds
+ 'DateTimeOriginal' => MW_EXIF_ASCII, # Date and time of original data generation #p36
+ 'DateTimeDigitized' => MW_EXIF_ASCII, # Date and time of original data generation
+ 'SubSecTime' => MW_EXIF_ASCII, # DateTime subseconds
+ 'SubSecTimeOriginal' => MW_EXIF_ASCII, # DateTimeOriginal subseconds
+ 'SubSecTimeDigitized' => MW_EXIF_ASCII, # DateTimeDigitized subseconds
),
# Tags relating to picture-taking conditions (p31)
'conditions' => array(
- 'ExposureTime' => RATIONAL, # Exposure time
- 'FNumber' => RATIONAL, # F Number
- 'ExposureProgram' => SHORT, # Exposure Program #p38
- 'SpectralSensitivity' => ASCII, # Spectral sensitivity
- 'ISOSpeedRatings' => SHORT, # ISO speed rating
- 'OECF' => UNDEFINED, # Optoelectronic conversion factor
- 'ShutterSpeedValue' => SRATIONAL, # Shutter speed
- 'ApertureValue' => RATIONAL, # Aperture
- 'BrightnessValue' => SRATIONAL, # Brightness
- 'ExposureBiasValue' => SRATIONAL, # Exposure bias
- 'MaxApertureValue' => RATIONAL, # Maximum land aperture
- 'SubjectDistance' => RATIONAL, # Subject distance
- 'MeteringMode' => SHORT, # Metering mode #p40
- 'LightSource' => SHORT, # Light source #p40-41
- 'Flash' => SHORT, # Flash #p41-42
- 'FocalLength' => RATIONAL, # Lens focal length
- 'SubjectArea' => SHORT, # Subject area
- 'FlashEnergy' => RATIONAL, # Flash energy
- 'SpatialFrequencyResponse' => UNDEFINED, # Spatial frequency response
- 'FocalPlaneXResolution' => RATIONAL, # Focal plane X resolution
- 'FocalPlaneYResolution' => RATIONAL, # Focal plane Y resolution
- 'FocalPlaneResolutionUnit' => SHORT, # Focal plane resolution unit
- 'SubjectLocation' => SHORT, # Subject location
- 'ExposureIndex' => RATIONAL, # Exposure index
- 'SensingMethod' => SHORT, # Sensing method #p46
- 'FileSource' => UNDEFINED, # File source #p47
- 'SceneType' => UNDEFINED, # Scene type #p47
- 'CFAPattern' => UNDEFINED, # CFA pattern
- 'CustomRendered' => SHORT, # Custom image processing #p48
- 'ExposureMode' => SHORT, # Exposure mode #p48
- 'WhiteBalance' => SHORT, # White Balance #p49
- 'DigitalZoomRatio' => RATIONAL, # Digital zoom ration
- 'FocalLengthIn35mmFilm' => SHORT, # Focal length in 35 mm film
- 'SceneCaptureType' => SHORT, # Scene capture type #p49
- 'GainControl' => RATIONAL, # Scene control #p49-50
- 'Contrast' => SHORT, # Contrast #p50
- 'Saturation' => SHORT, # Saturation #p50
- 'Sharpness' => SHORT, # Sharpness #p50
- 'DeviceSettingDescription' => UNDEFINED, # Desice settings description
- 'SubjectDistanceRange' => SHORT, # Subject distance range #p51
+ 'ExposureTime' => MW_EXIF_RATIONAL, # Exposure time
+ 'FNumber' => MW_EXIF_RATIONAL, # F Number
+ 'ExposureProgram' => MW_EXIF_SHORT, # Exposure Program #p38
+ 'SpectralSensitivity' => MW_EXIF_ASCII, # Spectral sensitivity
+ 'ISOSpeedRatings' => MW_EXIF_SHORT, # ISO speed rating
+ 'OECF' => MW_EXIF_UNDEFINED, # Optoelectronic conversion factor
+ 'ShutterSpeedValue' => MW_EXIF_SRATIONAL, # Shutter speed
+ 'ApertureValue' => MW_EXIF_RATIONAL, # Aperture
+ 'BrightnessValue' => MW_EXIF_SRATIONAL, # Brightness
+ 'ExposureBiasValue' => MW_EXIF_SRATIONAL, # Exposure bias
+ 'MaxApertureValue' => MW_EXIF_RATIONAL, # Maximum land aperture
+ 'SubjectDistance' => MW_EXIF_RATIONAL, # Subject distance
+ 'MeteringMode' => MW_EXIF_SHORT, # Metering mode #p40
+ 'LightSource' => MW_EXIF_SHORT, # Light source #p40-41
+ 'Flash' => MW_EXIF_SHORT, # Flash #p41-42
+ 'FocalLength' => MW_EXIF_RATIONAL, # Lens focal length
+ 'SubjectArea' => MW_EXIF_SHORT, # Subject area
+ 'FlashEnergy' => MW_EXIF_RATIONAL, # Flash energy
+ 'SpatialFrequencyResponse' => MW_EXIF_UNDEFINED, # Spatial frequency response
+ 'FocalPlaneXResolution' => MW_EXIF_RATIONAL, # Focal plane X resolution
+ 'FocalPlaneYResolution' => MW_EXIF_RATIONAL, # Focal plane Y resolution
+ 'FocalPlaneResolutionUnit' => MW_EXIF_SHORT, # Focal plane resolution unit
+ 'SubjectLocation' => MW_EXIF_SHORT, # Subject location
+ 'ExposureIndex' => MW_EXIF_RATIONAL, # Exposure index
+ 'SensingMethod' => MW_EXIF_SHORT, # Sensing method #p46
+ 'FileSource' => MW_EXIF_UNDEFINED, # File source #p47
+ 'SceneType' => MW_EXIF_UNDEFINED, # Scene type #p47
+ 'CFAPattern' => MW_EXIF_UNDEFINED, # CFA pattern
+ 'CustomRendered' => MW_EXIF_SHORT, # Custom image processing #p48
+ 'ExposureMode' => MW_EXIF_SHORT, # Exposure mode #p48
+ 'WhiteBalance' => MW_EXIF_SHORT, # White Balance #p49
+ 'DigitalZoomRatio' => MW_EXIF_RATIONAL, # Digital zoom ration
+ 'FocalLengthIn35mmFilm' => MW_EXIF_SHORT, # Focal length in 35 mm film
+ 'SceneCaptureType' => MW_EXIF_SHORT, # Scene capture type #p49
+ 'GainControl' => MW_EXIF_RATIONAL, # Scene control #p49-50
+ 'Contrast' => MW_EXIF_SHORT, # Contrast #p50
+ 'Saturation' => MW_EXIF_SHORT, # Saturation #p50
+ 'Sharpness' => MW_EXIF_SHORT, # Sharpness #p50
+ 'DeviceSettingDescription' => MW_EXIF_UNDEFINED, # Desice settings description
+ 'SubjectDistanceRange' => MW_EXIF_SHORT, # Subject distance range #p51
),
'other' => array(
- 'ImageUniqueID' => ASCII, # Unique image ID
+ 'ImageUniqueID' => MW_EXIF_ASCII, # Unique image ID
),
),
# GPS Attribute Information (p52)
'gps' => array(
- 'GPSVersionID' => BYTE, # GPS tag version
- 'GPSLatitudeRef' => ASCII, # North or South Latitude #p52-53
- 'GPSLatitude' => RATIONAL, # Latitude
- 'GPSLongitudeRef' => ASCII, # East or West Longitude #p53
- 'GPSLongitude' => RATIONAL, # Longitude
- 'GPSAltitudeRef' => BYTE, # Altitude reference
- 'GPSAltitude' => RATIONAL, # Altitude
- 'GPSTimeStamp' => RATIONAL, # GPS time (atomic clock)
- 'GPSSatellites' => ASCII, # Satellites used for measurement
- 'GPSStatus' => ASCII, # Receiver status #p54
- 'GPSMeasureMode' => ASCII, # Measurement mode #p54-55
- 'GPSDOP' => RATIONAL, # Measurement precision
- 'GPSSpeedRef' => ASCII, # Speed unit #p55
- 'GPSSpeed' => RATIONAL, # Speed of GPS receiver
- 'GPSTrackRef' => ASCII, # Reference for direction of movement #p55
- 'GPSTrack' => RATIONAL, # Direction of movement
- 'GPSImgDirectionRef' => ASCII, # Reference for direction of image #p56
- 'GPSImgDirection' => RATIONAL, # Direction of image
- 'GPSMapDatum' => ASCII, # Geodetic survey data used
- 'GPSDestLatitudeRef' => ASCII, # Reference for latitude of destination #p56
- 'GPSDestLatitude' => RATIONAL, # Latitude destination
- 'GPSDestLongitudeRef' => ASCII, # Reference for longitude of destination #p57
- 'GPSDestLongitude' => RATIONAL, # Longitude of destination
- 'GPSDestBearingRef' => ASCII, # Reference for bearing of destination #p57
- 'GPSDestBearing' => RATIONAL, # Bearing of destination
- 'GPSDestDistanceRef' => ASCII, # Reference for distance to destination #p57-58
- 'GPSDestDistance' => RATIONAL, # Distance to destination
- 'GPSProcessingMethod' => UNDEFINED, # Name of GPS processing method
- 'GPSAreaInformation' => UNDEFINED, # Name of GPS area
- 'GPSDateStamp' => ASCII, # GPS date
- 'GPSDifferential' => SHORT, # GPS differential correction
+ 'GPSVersionID' => MW_EXIF_BYTE, # GPS tag version
+ 'GPSLatitudeRef' => MW_EXIF_ASCII, # North or South Latitude #p52-53
+ 'GPSLatitude' => MW_EXIF_RATIONAL, # Latitude
+ 'GPSLongitudeRef' => MW_EXIF_ASCII, # East or West Longitude #p53
+ 'GPSLongitude' => MW_EXIF_RATIONAL, # Longitude
+ 'GPSAltitudeRef' => MW_EXIF_BYTE, # Altitude reference
+ 'GPSAltitude' => MW_EXIF_RATIONAL, # Altitude
+ 'GPSTimeStamp' => MW_EXIF_RATIONAL, # GPS time (atomic clock)
+ 'GPSSatellites' => MW_EXIF_ASCII, # Satellites used for measurement
+ 'GPSStatus' => MW_EXIF_ASCII, # Receiver status #p54
+ 'GPSMeasureMode' => MW_EXIF_ASCII, # Measurement mode #p54-55
+ 'GPSDOP' => MW_EXIF_RATIONAL, # Measurement precision
+ 'GPSSpeedRef' => MW_EXIF_ASCII, # Speed unit #p55
+ 'GPSSpeed' => MW_EXIF_RATIONAL, # Speed of GPS receiver
+ 'GPSTrackRef' => MW_EXIF_ASCII, # Reference for direction of movement #p55
+ 'GPSTrack' => MW_EXIF_RATIONAL, # Direction of movement
+ 'GPSImgDirectionRef' => MW_EXIF_ASCII, # Reference for direction of image #p56
+ 'GPSImgDirection' => MW_EXIF_RATIONAL, # Direction of image
+ 'GPSMapDatum' => MW_EXIF_ASCII, # Geodetic survey data used
+ 'GPSDestLatitudeRef' => MW_EXIF_ASCII, # Reference for latitude of destination #p56
+ 'GPSDestLatitude' => MW_EXIF_RATIONAL, # Latitude destination
+ 'GPSDestLongitudeRef' => MW_EXIF_ASCII, # Reference for longitude of destination #p57
+ 'GPSDestLongitude' => MW_EXIF_RATIONAL, # Longitude of destination
+ 'GPSDestBearingRef' => MW_EXIF_ASCII, # Reference for bearing of destination #p57
+ 'GPSDestBearing' => MW_EXIF_RATIONAL, # Bearing of destination
+ 'GPSDestDistanceRef' => MW_EXIF_ASCII, # Reference for distance to destination #p57-58
+ 'GPSDestDistance' => MW_EXIF_RATIONAL, # Distance to destination
+ 'GPSProcessingMethod' => MW_EXIF_UNDEFINED, # Name of GPS processing method
+ 'GPSAreaInformation' => MW_EXIF_UNDEFINED, # Name of GPS area
+ 'GPSDateStamp' => MW_EXIF_ASCII, # GPS date
+ 'GPSDifferential' => MW_EXIF_SHORT, # GPS differential correction
),
);
*/
function makeValidExifTags() {
foreach($this->mFlatExif as $key => $val) {
- if (strpos( $val, (string)UNDEFINED ) !== false)
+ if (strpos( $val, (string)MW_EXIF_UNDEFINED ) !== false)
continue;
$this->mValidExif[] = $key;
}
function validate( $tag, $val ) {
// Fucks up if not typecast
switch((string)$this->mFlatExif[$tag]) {
- case (string)BYTE:
+ case (string)MW_EXIF_BYTE:
return $this->isByte( $val );
- case (string)ASCII:
+ case (string)MW_EXIF_ASCII:
return $this->isASCII( $val );
- case (string)SHORT:
+ case (string)MW_EXIF_SHORT:
return $this->isShort( $val );
- case (string)LONG:
+ case (string)MW_EXIF_LONG:
return $this->isLong( $val );
- case (string)RATIONAL:
+ case (string)MW_EXIF_RATIONAL:
return $this->isRational( $val );
- case (string)UNDEFINED:
+ case (string)MW_EXIF_UNDEFINED:
return $this->isUndefined( $val );
- case (string)SLONG:
+ case (string)MW_EXIF_SLONG:
return $this->isSlong( $val );
- case (string)SRATIONAL:
+ case (string)MW_EXIF_SRATIONAL:
return $this->isSrational( $val );
- case (string)SHORT.','.LONG:
+ case (string)MW_EXIF_SHORT.','.MW_EXIF_LONG:
return $this->isShort( $val ) || $this->isLong( $val );
default:
wfDebug( "Exif: The tag \"$tag\" had an invalid value: \"$val\"\n" );
dépôts / lhc / web / wiklou.git / commitdiff