devpia.dextuploadnj.media
Class IFDEntry

Minimum version supported

1.0.0

Minimum support environment

JRE 1.6

Description

The IFDEntry is a class representing each entry(item) in IFD(Image File Directory).

Constructor

• Create an object of the IFDEntry class.

• Signatures

  public IFDEntry(int baseOffset, byte[] data, int offset, boolean intelOrder)

• Parameters

  Name	Type	Description
  baseOffset	int	The start position of the TIFF header
  data	byte[]	The byte array of the content
  offset	int	The start position indicating IFDEntry
  intelOrder	boolean	Sets to true if the byte order of data is little endian, false for big endian.

• How to use

  IFDEntry entry = new IFDEntry(baseoffset, data, offset, true);

Methods

getDataInt

• Returns the value of each entry in IFD as integer type.

• Signatures

  public int getDataInt()

• Returns

  The value of the entry

  Note 1) Even in the case of SLONG type, it returns with signed integer(4 bytes).

  Note 2) When this method is called when an ASCII, RATIONAL, SRATIONAL, UNDEFINED type, an error occurs.

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getDataInt();
      ...
  }

getDataDouble

• Returns the value of each entry in IFD as double precision floating point type.

• Signatures

  public double getDataDouble()

• Returns

  The value of the entry

  Note) If it is ASCII, UNDEFINED type, calling this method causes an error.

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getDataDouble();
      ...
  }

getDataString

• Returns the value of each entry in IFD as a character string.

• Signatures

  public String getDataString()

• Returns

  The value of the entry

  Note) In case of fraction type, returns it as a string("numerator/denominator").

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getDataString();
      ...
  }

getOffset

• Returns the starting position of each entry in IFD. The start position is a relative position from the start position of the TIFF header.

• Signatures

  public int getOffset()

• Returns

  The start position of the entry

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getOffset();
      ...
  }

getTag

• Returns the devpia.dextuploadnj.media.ImageMetadata.Tag value of each entry of IFD.

• Signatures

  public media.ImageMetadata.Tag getTag()

• Returns

  The tag value

  Note) If Tag is unknown or does not support it, returns null.

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getTag();
      ...
  }

getDataFormat

• Returns the devpia.dextuploadnj.media.ImageMetadata.IFDDataFormat type of each entry of IFD.

• Signatures

  public IFDDataFormat getDataFormat()

• Returns

  The devpia.dextuploadnj.media.ImageMetadata.IFDDataFormat type of the entry

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getDataFormat();
      ...
  }

getComponentNumber

• Returns the number of components of each entry in IFD.

• Signatures

  public int getComponentNumber()

• Returns

  The number of components

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getComponentNumber();
      ...
  }

getEntry

• Returns the value of each entry in IFD as a byte array.

• Signatures

  public byte[] getEntry()

• Returns

  The byte array of the entry

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getEntry();
      ...
  }

getDataLength

• Returns the length of the value of each entry in IFD.

• Signatures

  public int getDataLength()

• Returns

  The length of the entry

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getDataLength();
      ...
  }

getTagNumber

• Returns the devpia.dextuploadnj.media.ImageMetadata.Tag value of each entry in IFD as an integer.

• Signatures

  public int getTagNumber()

• Returns

  The integer value of the devpia.dextuploadnj.media.ImageMetadata.Tag value

• How to use

  ImageMetadata metadata = oimg.getMetadata();			
      ...
  for (IFDEntry entry : metadata.getExif()) {
  	entry.getTagNumber();
      ...
  }