Re: [Gimp-developer] png save broken in gimp edge ppa - There was an invalid UTF-8 string in the exif:ImageDescription

[C R <cajhne gmail com>]

Yes, if "save comment" is unchecked it saves fine.
I never touch the comment, so it's strange that there would be something
invalid in it.

Thanks for looking into this.
Maybe we should create a bug report?

-C

On Mon, May 23, 2016 at 6:59 PM, Thorsten Stettin <
thorsten stettin gmail com> wrote:

> Am 23.05.2016 um 15:00 schrieb C R:
>
> > Happens every time with this file:
> >
> > http://www.whitecatgraphics.com/opendesignstudio/gimp/samples/ac_a4_document_holder_vintage_leather_brown_4.png
> >
> > steps to reproduce:
> > 1.open the downloaded file in gimp
> > 2.export as "ac_a4_document_holder_vintage_leather_brown_4a.png"
> > 3.these boxes in png export are checked: "save background colour", and
> > all checkboxes after and including Save resolution, compression level 9,
> > and everything under advanced checked.
>
> Hi
>
> At home in Xenial I exported your picture with save comment.
> The above error occurred.
> Hmm.
>
> I took a look at the comment field exactly the exif:ImageDescription: It
> contains an invalid UTF-8 string.
>
> *identify -verbose ac_a4_document_holder_vintage_leather_brown_4.png |
> grep -i desc **
> **    exif:ImageDescription: ..:\w.*
>
>
> After replacing the picture comment content with Gimp's standard one -
> valid UTF-8, I think - I could export your picture without any problem.
>
> *identify -verbose ac_a4_document_holder_vintage_leather_brown_4a.png |
> grep -i desc
>     exif:ImageDescription: Created with GIMP*
>
> I guess it's a bug regarding the comment string and/or character set
> handling. Maybe a wrong character set was using in the
> exif:ImageDescription field, I assume.
>
>
> Greetings
>
> Thorsten
>
> > On Mon, May 23, 2016 at 11:24 AM, Thorsten Stettin <
> > thorsten stettin gmail com <mailto:thorsten stettin gmail com>> wrote:
> >
> >     Am 23.05.2016 um 08:44 schrieb C R:
> >     > Fails on export with a Plug-in crash:
> >     >
> >     > "Procedure 'file-png-save-defaults' returned no return values
> >     >
> >     >
> >     > Strangely, if you save as a jpeg first, it exports to png just fine.
> >     >
> >     > Steps to reproduce:
> >     > 1. Open File
> >     > 2. Export to png
> >     >
> >     > Results in the above crash.
> >     >
> >     > Ver: GIMP 2.9.3
> >     > Ubuntu 16.04 with gnome-shell 3.18.4
> >     >
> >     > -C
> >     Under Trusty I can't reproduce that behavior. :-(
> >
> >     gimp Version 2.9.3.81-0t0~ppa
> >     libgegl-0.3-0 1:0.3.6.20-0t0~ppa
> >
> >     Cheers
> >
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