Package com.drew.metadata.exif

Class ExifTiffHandler

java.lang.Object

com.drew.metadata.tiff.DirectoryTiffHandler

com.drew.metadata.exif.ExifTiffHandler

All Implemented Interfaces:

TiffHandler

Direct Known Subclasses:

PhotoshopTiffHandler

public class ExifTiffHandler
extends DirectoryTiffHandler

Implementation of TiffHandler used for handling TIFF tags according to the Exif standard.

Includes support for camera manufacturer makernotes.

Author:

Drew Noakes https://drewnoakes.com

Constructor Summary

Constructors

Constructor	Description
ExifTiffHandler(Metadata metadata, Directory parentDirectory, int exifStartOffset)

Method Summary

Modifier and Type	Method	Description
boolean	customProcessTag(int tagOffset, Set<Integer> processedIfdOffsets, int tiffHeaderOffset, RandomAccessReader reader, int tagId, int byteCount)
boolean	hasFollowerIfd()
void	setTiffMarker(int marker)	Receives the 2-byte marker found in the TIFF header.
Long	tryCustomProcessFormat(int tagId, int formatCode, long componentCount)
boolean	tryEnterSubIfd(int tagId)

Methods inherited from class com.drew.metadata.tiff.DirectoryTiffHandler

endingIFD, error, setByteArray, setDouble, setDoubleArray, setFloat, setFloatArray, setInt16s, setInt16sArray, setInt16u, setInt16uArray, setInt32s, setInt32sArray, setInt32u, setInt32uArray, setInt8s, setInt8sArray, setInt8u, setInt8uArray, setRational, setRationalArray, setString, warn

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ExifTiffHandler

public ExifTiffHandler(Metadata metadata,
 Directory parentDirectory,
 int exifStartOffset)

Method Details

setTiffMarker

public void setTiffMarker(int marker)
                   throws TiffProcessingException

Description copied from interface: TiffHandler

Receives the 2-byte marker found in the TIFF header.

Implementations are not obligated to use this information for any purpose, though it may be useful for validation or perhaps differentiating the type of mapping to use for observed tags and IFDs.

Parameters:

marker - the 2-byte value found at position 2 of the TIFF header

Throws:

TiffProcessingException

tryEnterSubIfd

public boolean tryEnterSubIfd(int tagId)

hasFollowerIfd

public boolean hasFollowerIfd()

tryCustomProcessFormat

public Long tryCustomProcessFormat(int tagId,
 int formatCode,
 long componentCount)

customProcessTag

public boolean customProcessTag(int tagOffset,
 Set<Integer> processedIfdOffsets,
 int tiffHeaderOffset,
 RandomAccessReader reader,
 int tagId,
 int byteCount)
                         throws IOException

Throws:

IOException