ExifDescriptor (metadata-extractor javadoc)

java.lang.Object
- com.drew.metadata.TagDescriptor
- - com.drew.metadata.exif.ExifDescriptor

All Implemented Interfaces:

java.io.Serializable
```
public class ExifDescriptor
extends TagDescriptor
```
Contains all logic for the presentation of raw Exif data, as stored in ExifDirectory. Use this class to provide human-readable descriptions of tag values.

See Also:
Serialized Form

Field Summary
- Fields inherited from class com.drew.metadata.TagDescriptor
  _directory

Constructor Summary

Constructors
Constructor and Description

ExifDescriptor(Directory directory)

Constructors
Constructor and Description
`ExifDescriptor(Directory directory)`

Method Summary

Methods
Modifier and Type	Method and Description
`static java.lang.String`	`convertBytesToVersionString(int[] components)` Takes a series of 4 bytes from the specified offset, and converts these to a well-known version number, where possible.
`java.lang.String`	`get35mmFilmEquivFocalLengthDescription()`
`java.lang.String`	`getApertureValueDescription()`
`java.lang.String`	`getBitsPerSampleDescription()`
`java.lang.String`	`getColorSpaceDescription()`
`java.lang.String`	`getComponentConfigurationDescription()`
`java.lang.String`	`getCompressionDescription()`
`java.lang.String`	`getCompressionLevelDescription()`
`java.lang.String`	`getContrastDescription()`
`java.lang.String`	`getCustomRenderedDescription()`
`java.lang.String`	`getDescription(int tagType)` Returns a descriptive value of the the specified tag for this image.
`java.lang.String`	`getDigitalZoomRatioDescription()`
`java.lang.String`	`getExifImageHeightDescription()`
`java.lang.String`	`getExifImageWidthDescription()`
`java.lang.String`	`getExifVersionDescription()`
`java.lang.String`	`getExposureBiasDescription()`
`java.lang.String`	`getExposureModeDescription()`
`java.lang.String`	`getExposureProgramDescription()`
`java.lang.String`	`getExposureTimeDescription()`
`java.lang.String`	`getFileSourceDescription()`
`java.lang.String`	`getFillOrderDescription()`
`java.lang.String`	`getFlashDescription()`
`java.lang.String`	`getFlashPixVersionDescription()`
`java.lang.String`	`getFNumberDescription()`
`java.lang.String`	`getFocalLengthDescription()`
`java.lang.String`	`getFocalPlaneResolutionUnitDescription()`
`java.lang.String`	`getFocalPlaneXResolutionDescription()`
`java.lang.String`	`getFocalPlaneYResolutionDescription()`
`java.lang.String`	`getGainControlDescription()`
`java.lang.String`	`getIsoEquivalentDescription()`
`java.lang.String`	`getMaxApertureValueDescription()`
`java.lang.String`	`getMeteringModeDescription()`
`java.lang.String`	`getNewSubfileTypeDescription()`
`java.lang.String`	`getOrientationDescription()`
`java.lang.String`	`getPhotometricInterpretationDescription()`
`java.lang.String`	`getPlanarConfigurationDescription()`
`java.lang.String`	`getReferenceBlackWhiteDescription()`
`java.lang.String`	`getResolutionDescription()`
`java.lang.String`	`getRowsPerStripDescription()`
`java.lang.String`	`getSamplesPerPixelDescription()`
`java.lang.String`	`getSaturationDescription()`
`java.lang.String`	`getSceneCaptureTypeDescription()`
`java.lang.String`	`getSceneTypeDescription()`
`java.lang.String`	`getSensingMethodDescription()`
`java.lang.String`	`getSharpnessDescription()`
`java.lang.String`	`getShutterSpeedDescription()`
`java.lang.String`	`getStripByteCountsDescription()`
`java.lang.String`	`getSubfileTypeDescription()`
`java.lang.String`	`getSubjectDistanceDescription()`
`java.lang.String`	`getSubjectDistanceRangeDescription()`
`java.lang.String`	`getThresholdingDescription()`
`java.lang.String`	`getThumbnailDescription()`
`java.lang.String`	`getThumbnailImageHeightDescription()`
`java.lang.String`	`getThumbnailImageWidthDescription()`
`java.lang.String`	`getThumbnailLengthDescription()`
`java.lang.String`	`getThumbnailOffsetDescription()`
`java.lang.String`	`getUserCommentDescription()`
`java.lang.String`	`getWhiteBalanceDescription()`
`java.lang.String`	`getWhiteBalanceModeDescription()`
`java.lang.String`	`getWindowsAuthorDescription()`
`java.lang.String`	`getWindowsCommentDescription()`
`java.lang.String`	`getWindowsKeywordsDescription()`
`java.lang.String`	`getWindowsSubjectDescription()`
`java.lang.String`	`getWindowsTitleDescription()`
`java.lang.String`	`getXResolutionDescription()`
`java.lang.String`	`getYCbCrPositioningDescription()`
`java.lang.String`	`getYCbCrSubsamplingDescription()`
`java.lang.String`	`getYResolutionDescription()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExifDescriptor

public ExifDescriptor(Directory directory)

Method Detail

getDescription
```
public java.lang.String getDescription(int tagType)
                                throws MetadataException
```
Returns a descriptive value of the the specified tag for this image. Where possible, known values will be substituted here in place of the raw tokens actually kept in the Exif segment. If no substitution is available, the value provided by getString(int) will be returned.

Specified by:

getDescription in class TagDescriptor

Parameters:
tagType - the tag to find a description for

Returns:
a description of the image's value for the specified tag, or null if the tag hasn't been defined.

Throws:

MetadataException

getNewSubfileTypeDescription

public java.lang.String getNewSubfileTypeDescription()
                                              throws MetadataException

Throws:: MetadataException

getSubfileTypeDescription

public java.lang.String getSubfileTypeDescription()
                                           throws MetadataException

Throws:: MetadataException

getThresholdingDescription

public java.lang.String getThresholdingDescription()
                                            throws MetadataException

Throws:: MetadataException

getFillOrderDescription

public java.lang.String getFillOrderDescription()
                                         throws MetadataException

Throws:: MetadataException

getSubjectDistanceRangeDescription

public java.lang.String getSubjectDistanceRangeDescription()
                                                    throws MetadataException

Throws:: MetadataException

getSharpnessDescription

public java.lang.String getSharpnessDescription()
                                         throws MetadataException

Throws:: MetadataException

getSaturationDescription

public java.lang.String getSaturationDescription()
                                          throws MetadataException

Throws:: MetadataException

getContrastDescription

public java.lang.String getContrastDescription()
                                        throws MetadataException

Throws:: MetadataException

getGainControlDescription

public java.lang.String getGainControlDescription()
                                           throws MetadataException

Throws:: MetadataException

getSceneCaptureTypeDescription

public java.lang.String getSceneCaptureTypeDescription()
                                                throws MetadataException

Throws:: MetadataException

get35mmFilmEquivFocalLengthDescription

public java.lang.String get35mmFilmEquivFocalLengthDescription()
                                                        throws MetadataException

Throws:: MetadataException

getDigitalZoomRatioDescription

public java.lang.String getDigitalZoomRatioDescription()
                                                throws MetadataException

Throws:: MetadataException

getWhiteBalanceModeDescription

public java.lang.String getWhiteBalanceModeDescription()
                                                throws MetadataException

Throws:: MetadataException

getExposureModeDescription

public java.lang.String getExposureModeDescription()
                                            throws MetadataException

Throws:: MetadataException

getCustomRenderedDescription

public java.lang.String getCustomRenderedDescription()
                                              throws MetadataException

Throws:: MetadataException

getUserCommentDescription

public java.lang.String getUserCommentDescription()
                                           throws MetadataException

Throws:: MetadataException

getThumbnailDescription

public java.lang.String getThumbnailDescription()
                                         throws MetadataException

Throws:: MetadataException

getIsoEquivalentDescription

public java.lang.String getIsoEquivalentDescription()
                                             throws MetadataException

Throws:: MetadataException

getReferenceBlackWhiteDescription

public java.lang.String getReferenceBlackWhiteDescription()
                                                   throws MetadataException

Throws:: MetadataException

getExifVersionDescription

public java.lang.String getExifVersionDescription()
                                           throws MetadataException

Throws:: MetadataException

getFlashPixVersionDescription

public java.lang.String getFlashPixVersionDescription()
                                               throws MetadataException

Throws:: MetadataException

getSceneTypeDescription

public java.lang.String getSceneTypeDescription()
                                         throws MetadataException

Throws:: MetadataException

getFileSourceDescription

public java.lang.String getFileSourceDescription()
                                          throws MetadataException

Throws:: MetadataException

getExposureBiasDescription

public java.lang.String getExposureBiasDescription()
                                            throws MetadataException

Throws:: MetadataException

getMaxApertureValueDescription

public java.lang.String getMaxApertureValueDescription()
                                                throws MetadataException

Throws:: MetadataException

getApertureValueDescription

public java.lang.String getApertureValueDescription()
                                             throws MetadataException

Throws:: MetadataException

getExposureProgramDescription

public java.lang.String getExposureProgramDescription()
                                               throws MetadataException

Throws:: MetadataException

getYCbCrSubsamplingDescription

public java.lang.String getYCbCrSubsamplingDescription()
                                                throws MetadataException

Throws:: MetadataException

getPlanarConfigurationDescription

public java.lang.String getPlanarConfigurationDescription()
                                                   throws MetadataException

Throws:: MetadataException

getSamplesPerPixelDescription

public java.lang.String getSamplesPerPixelDescription()

getRowsPerStripDescription

public java.lang.String getRowsPerStripDescription()

getStripByteCountsDescription

public java.lang.String getStripByteCountsDescription()

getPhotometricInterpretationDescription

public java.lang.String getPhotometricInterpretationDescription()
                                                         throws MetadataException

Throws:: MetadataException

getCompressionDescription

public java.lang.String getCompressionDescription()
                                           throws MetadataException

Throws:: MetadataException

getBitsPerSampleDescription

public java.lang.String getBitsPerSampleDescription()

getThumbnailImageWidthDescription

public java.lang.String getThumbnailImageWidthDescription()

getThumbnailImageHeightDescription

public java.lang.String getThumbnailImageHeightDescription()

getFocalPlaneXResolutionDescription

public java.lang.String getFocalPlaneXResolutionDescription()
                                                     throws MetadataException

Throws:: MetadataException

getFocalPlaneYResolutionDescription

public java.lang.String getFocalPlaneYResolutionDescription()
                                                     throws MetadataException

Throws:: MetadataException

getFocalPlaneResolutionUnitDescription

public java.lang.String getFocalPlaneResolutionUnitDescription()
                                                        throws MetadataException

Throws:: MetadataException

getExifImageWidthDescription

public java.lang.String getExifImageWidthDescription()
                                              throws MetadataException

Throws:: MetadataException

getExifImageHeightDescription

public java.lang.String getExifImageHeightDescription()
                                               throws MetadataException

Throws:: MetadataException

getColorSpaceDescription

public java.lang.String getColorSpaceDescription()
                                          throws MetadataException

Throws:: MetadataException

getFocalLengthDescription

public java.lang.String getFocalLengthDescription()
                                           throws MetadataException

Throws:: MetadataException

getFlashDescription

public java.lang.String getFlashDescription()
                                     throws MetadataException

Throws:: MetadataException

getWhiteBalanceDescription

public java.lang.String getWhiteBalanceDescription()
                                            throws MetadataException

Throws:: MetadataException

getMeteringModeDescription

public java.lang.String getMeteringModeDescription()
                                            throws MetadataException

Throws:: MetadataException

getSubjectDistanceDescription

public java.lang.String getSubjectDistanceDescription()
                                               throws MetadataException

Throws:: MetadataException

getCompressionLevelDescription

public java.lang.String getCompressionLevelDescription()
                                                throws MetadataException

Throws:: MetadataException

getThumbnailLengthDescription

public java.lang.String getThumbnailLengthDescription()

getThumbnailOffsetDescription

public java.lang.String getThumbnailOffsetDescription()

getYResolutionDescription

public java.lang.String getYResolutionDescription()
                                           throws MetadataException

Throws:: MetadataException

getXResolutionDescription

public java.lang.String getXResolutionDescription()
                                           throws MetadataException

Throws:: MetadataException

getExposureTimeDescription

public java.lang.String getExposureTimeDescription()

getShutterSpeedDescription

public java.lang.String getShutterSpeedDescription()
                                            throws MetadataException

Throws:: MetadataException

getFNumberDescription

public java.lang.String getFNumberDescription()
                                       throws MetadataException

Throws:: MetadataException

getYCbCrPositioningDescription

public java.lang.String getYCbCrPositioningDescription()
                                                throws MetadataException

Throws:: MetadataException

getOrientationDescription

public java.lang.String getOrientationDescription()
                                           throws MetadataException

Throws:: MetadataException

getResolutionDescription

public java.lang.String getResolutionDescription()
                                          throws MetadataException

Throws:: MetadataException

getSensingMethodDescription

public java.lang.String getSensingMethodDescription()
                                             throws MetadataException

Throws:: MetadataException

getComponentConfigurationDescription

public java.lang.String getComponentConfigurationDescription()
                                                      throws MetadataException

Throws:: MetadataException

convertBytesToVersionString
```
public static java.lang.String convertBytesToVersionString(int[] components)
```
Takes a series of 4 bytes from the specified offset, and converts these to a well-known version number, where possible. For example, (hex) 30 32 31 30 == 2.10).

Parameters:
components - the four version values

Returns:
the version as a string of form 2.10

getWindowsAuthorDescription

public java.lang.String getWindowsAuthorDescription()
                                             throws MetadataException

Throws:: MetadataException

getWindowsCommentDescription

public java.lang.String getWindowsCommentDescription()
                                              throws MetadataException

Throws:: MetadataException

getWindowsKeywordsDescription

public java.lang.String getWindowsKeywordsDescription()
                                               throws MetadataException

Throws:: MetadataException

getWindowsTitleDescription

public java.lang.String getWindowsTitleDescription()
                                            throws MetadataException

Throws:: MetadataException

getWindowsSubjectDescription

public java.lang.String getWindowsSubjectDescription()
                                              throws MetadataException

Throws:: MetadataException

Class ExifDescriptor

Field Summary

Fields inherited from class com.drew.metadata.TagDescriptor

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ExifDescriptor

Method Detail

getDescription

getNewSubfileTypeDescription

getSubfileTypeDescription

getThresholdingDescription

getFillOrderDescription

getSubjectDistanceRangeDescription

getSharpnessDescription

getSaturationDescription

getContrastDescription

getGainControlDescription

getSceneCaptureTypeDescription

get35mmFilmEquivFocalLengthDescription

getDigitalZoomRatioDescription

getWhiteBalanceModeDescription

getExposureModeDescription

getCustomRenderedDescription

getUserCommentDescription

getThumbnailDescription

getIsoEquivalentDescription

getReferenceBlackWhiteDescription

getExifVersionDescription

getFlashPixVersionDescription

getSceneTypeDescription

getFileSourceDescription

getExposureBiasDescription

getMaxApertureValueDescription

getApertureValueDescription

getExposureProgramDescription

getYCbCrSubsamplingDescription

getPlanarConfigurationDescription

getSamplesPerPixelDescription

getRowsPerStripDescription

getStripByteCountsDescription

getPhotometricInterpretationDescription

getCompressionDescription

getBitsPerSampleDescription

getThumbnailImageWidthDescription

getThumbnailImageHeightDescription

getFocalPlaneXResolutionDescription

getFocalPlaneYResolutionDescription

getFocalPlaneResolutionUnitDescription

getExifImageWidthDescription

getExifImageHeightDescription

getColorSpaceDescription

getFocalLengthDescription

getFlashDescription

getWhiteBalanceDescription

getMeteringModeDescription

getSubjectDistanceDescription

getCompressionLevelDescription

getThumbnailLengthDescription

getThumbnailOffsetDescription

getYResolutionDescription

getXResolutionDescription

getExposureTimeDescription

getShutterSpeedDescription

getFNumberDescription

getYCbCrPositioningDescription

getOrientationDescription

getResolutionDescription

getSensingMethodDescription

getComponentConfigurationDescription

convertBytesToVersionString

getWindowsAuthorDescription

getWindowsCommentDescription

getWindowsKeywordsDescription

getWindowsTitleDescription

getWindowsSubjectDescription