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From "Joakim Knudsen (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Deleted] (IMAGING-205) Imaging (Apache Sanselan) produces "odd offsets" in (EXIF) metadata
Date Wed, 15 Nov 2017 22:17:00 GMT

     [ https://issues.apache.org/jira/browse/IMAGING-205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joakim Knudsen updated IMAGING-205:
-----------------------------------
    Comment: was deleted

(was: UPDATE
The Sample Usage code (for both Sanselan and Commons Imaging, current snapshot) produce odd
offsets in the metadata.
The problems I mention about Maker Notes, and metadata structure, are a separate issue for
which I have not managed to pinpoint the cause yet. Please ignore those comments, I will get
back to this after the odd offsets is resolved. Hopefully, these issues are somehow related,
so fixing the offsets might improve the other problems. )

> 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
>            Assignee: Bruno P. Kinoshita
>            Priority: Critical
>         Attachments: 20171030_21481_COPY.jpg, Gaboxjellyfish-changedexifmetadata.jpg,
Gaboxjellyfish.jpg, after.html, before.html
>
>
> 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|https://sno.phy.queensu.ca/~phil/exiftool/]):
> {noformat}
> > 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
> {noformat}
> 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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