[Digikam-devel] [digikam] [Bug 353815] New: Using Batch Queue Manager to extract preview images loses metadata

[Michal Sylwester]

https://bugs.kde.org/show_bug.cgi?id=353815

            Bug ID: 353815
           Summary: Using Batch Queue Manager to extract preview images
                    loses metadata
           Product: digikam
           Version: 4.13.0
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Batch Queue Manager
          Assignee: digikam-devel at kde.org
          Reporter: msylwester at gmail.com

My typical workflow: Normally I shoot my photos to RAW with embedded JPEG
preview. Then depending on needs I either process the RAWs, or just extract the
preview if it's good enough for me. However when I use the Batch Queue Manager
for this the extracted images lack the metadata from original.



Reproducible: Always

Steps to Reproduce:
1. Shoot some RAWs with embedded JPEG preview
2. Use Batch Queue Manager to extract the JPEG (set behavior tab: to "Extract
embedded preview", and convert to JPEG base tool and run)


Actual Results:  
The resulting JPEG has no metadata of the original RAW

Expected Results:  
Metadata is copied from RAW to JPEG

Not sure how to classify the severity, but as I remove the RAWs I don't need to
keep but I still need the metadata this may result in (meta)data loss.
Graphical data is preserved as expected.

Currently the only workaround I've found is to manually copy the metadata after
extraction:
for i in *.CR2; do j=${i%.CR2}.jpg; exiftool -TagsFromFile $i $j; done

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