[digikam] [Bug 354035] New: Picture rotation of PNG is not written to file

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https://bugs.kde.org/show_bug.cgi?id=354035

            Bug ID: 354035
           Summary: Picture rotation of PNG is not written to file
           Product: digikam
           Version: 4.13.0
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: Albums View
          Assignee: [hidden email]
          Reporter: [hidden email]

Rotating a PNG picture with picture rotation clockwise or counterclockwise does
not affect the file.
The view in the album view has been corrected, but not the file itself (viewing
it with showphoto or gwenview shows no rotation).

The rotation with showphoto (and gwenview) is  working correctly.


Reproducible: Always

Steps to Reproduce:
1. Rotate the picture clockwise from the album view.
2. Check the file with gwenview, showphoto, etc.
3.

Actual Results:  
Picture is not rotated

Expected Results:  
Picture should be rotated

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Gilles Caulier <[hidden email]> changed:

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--- Comment #1 from Gilles Caulier <[hidden email]> ---
Work perfectly here with 4.14.0. not reproducible.

In digiKam/Setup/Metadata/Rotation, did you manage options in "When rotating a
file" section properly ?

Gilles Caulier

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           What    |Removed                     |Added
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           Severity|major                       |normal

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--- Comment #2 from [hidden email] ---
JPG is working correctly, only PNG is affected (other formats I do not use).
I checked the settings again: The rotation shall be done by change of contents.
(Change by not lossless rotation is not checked).

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--- Comment #3 from Gilles Caulier <[hidden email]> ---
What did you seen as debug trace on the console while PNG rotation ? Look in
this page to see how to turn on debug traces :

https://www.digikam.org/contrib

Gilles Caulier

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--- Comment #4 from [hidden email] ---
Created attachment 95030
  --> https://bugs.kde.org/attachment.cgi?id=95030&action=edit
Logfile rotation PNG file within digikam

Logfile rotation PNG file within digikam

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--- Comment #5 from Gilles Caulier <[hidden email]> ---
In the trace, PNG metadata is only changed. There is no image operations
reported. Sound like the non JPEG image format detection to process image
rotation outside JPEGLibs transform algorithm do not work.

But here it work...

can you test again with a fresh new foo account on your computer, with a fresh
configuration of digiKam. Import few PNG and try to see if it's reproducible.
Just to see if problem come from settings.

Gilles

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--- Comment #6 from [hidden email] ---
Checking the log file:
following line:
digikam(6843)/KEXIV2 KExiv2Iface::KExiv2::save: Metadata for file "001_.png"
written to file.

The file did NOT change (I checked date and contents) ... so I assume the write
maybe went wrong.

The view in album view shows the intended rotation.

(The test with a foo user will follow)

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Maik Qualmann <[hidden email]> changed:

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--- Comment #7 from Maik Qualmann <[hidden email]> ---
Writing metadata is canceled due to lack of namespace for ACDSee in libexiv2.
To support the namespace of ACDSee, you need the following packages versions
for digiKam >= 4.10.0:

libexiv2 >= 0.2.5 or libkexiv2 >= 15.04.3

Maik

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--- Comment #8 from [hidden email] ---
exiv2 version is 0.24 and libkexiv2 has the respective version. So the reason
seems to be clear.

I tried to verify, but an update of exiv2 to 0.25 was not possible due to
broken dependencies. I tried, but digikam even did not start up.

Attached the log with import from scratch (with 0.24)

For me this is OK now. Now I know and wait for opensuse to update all.

A bit problematic seems to me, that the rotation is done halfway only (I can
see the rotation in the album view, but this seems for me an information
originating maybe from the database) Here I would prefere to get an error
message, that something is not working.

Nevertheless: Very fast and helpful response from you. Thank you very much.

And not to forget: Thanks for the work on digikam, which I use and like for
years now.

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--- Comment #9 from [hidden email] ---
Created attachment 95031
  --> https://bugs.kde.org/attachment.cgi?id=95031&action=edit
Logfile rotation PNG file within digikam with scratch user

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--- Comment #10 from Gilles Caulier <[hidden email]> ---
Same problem :

digikam(12174)/KEXIV2: Cannot find Xmp key 'Xmp.acdsee.caption' into image
using Exiv2   (Error # 35 :  Keine Namensrauminformation für den XMP-Präfix
`acdsee' verfügbar
digikam(12174)/KEXIV2: Cannot find Xmp key 'Xmp.acdsee.categories' into image
using Exiv2   (Error # 35 :  Keine Namensrauminformation für den XMP-Präfix
`acdsee' verfügbar

Gilles Caulier

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Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #11 from Gilles Caulier <[hidden email]> ---


*** This bug has been marked as a duplicate of bug 353530 ***

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           What    |Removed                     |Added
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          Component|Albums-MainView             |FilesIO-PNG

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