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From "Joakim Knudsen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IMAGING-205) Imaging (Apache Sanselan) produces "odd offsets" in (EXIF) metadata
Date Mon, 30 Oct 2017 20:07:00 GMT
Joakim Knudsen created IMAGING-205:
--------------------------------------

             Summary: Imaging (Apache Sanselan) produces "odd offsets" in (EXIF) metadata
                 Key: IMAGING-205
                 URL: https://issues.apache.org/jira/browse/IMAGING-205
             Project: Commons Imaging
          Issue Type: Bug
          Components: imaging.*
            Reporter: Joakim Knudsen
            Priority: Critical


I'm using the "last stable version" of Apache Sanselan 0.97 in an Android project (app). I
have not upgraded to Commons Imaging yet, since the website says there is no stable release
yet. Meanwhile, there are bugs in Sanselan. 

If I run the [sample code method WriteExifMetadataExample.changeExifMetadata|http://svn.apache.org/repos/asf/commons/proper/sanselan/trunk/src/test/java/org/apache/sanselan/sampleUsage/WriteExifMetadataExample.java?p=820841]
on an image, which updates the Apterture and GPS tags, the resulting image fails to validate
(through Phil Harvey's ExifTool software):

{{> exiftool.exe -validate -error -warning -a "..\20171030_21481_COPY.jpg"
Validate                        : 19 Warnings (17 minor)
Warning                         : [minor] Odd offset for IFD0 tag 0x010f
Warning                         : [minor] Odd offset for IFD0 tag 0x011a
Warning                         : [minor] Odd offset for IFD0 tag 0x011b
Warning                         : [minor] Odd offset for IFD0 tag 0x0131
Warning                         : [minor] Odd offset for IFD0 tag 0x0132
Warning                         : [minor] Odd offset for ExifIFD tag 0x829a
Warning                         : [minor] Odd offset for ExifIFD tag 0x829d
Warning                         : [minor] Odd offset for ExifIFD tag 0x9003
Warning                         : [minor] Odd offset for ExifIFD tag 0x9004
Warning                         : [minor] Odd offset for ExifIFD tag 0x9202
Warning                         : [minor] Odd offset for ExifIFD tag 0x9205
Warning                         : [minor] Odd offset for ExifIFD tag 0x920a
Warning                         : [minor] Odd offset for ExifIFD tag 0x9286
Warning                         : Non-standard count (1) for GPS tag 0x0001 GPSLatitudeRef
Warning                         : [minor] Odd offset for GPS tag 0x0002
Warning                         : Non-standard count (1) for GPS tag 0x0003 GPSLongitudeRef
Warning                         : [minor] Odd offset for GPS tag 0x0004
Warning                         : [minor] Odd offset for IFD1 tag 0x011a
Warning                         : [minor] Odd offset for IFD1 tag 0x011b}}

I need some advice on how to proceed here. Since Sanselan does not appear to do what it should
(even on very basic metadata editing), am I correct to assume that the current version of
Commons Imaging does a better job? :-)





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