[Bug 199148] New: [wish] iptc ascii vs unicode pb

[Philippe ROUBACH]

https://bugs.kde.org/show_bug.cgi?id=199148

           Summary: [wish] iptc ascii vs unicode pb
           Product: digikam
           Version: 1.0.0-beta2
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           1.0.0-beta2 (using 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1)),
Mandriva Linux release 2010.0 (Cooker) for i586)
Compiler:          gcc
OS:                Linux (i686) release 2.6.30.1-desktop-1mnb

iptc comments must be in ascii. ok

but when using right panel to add comments
i use unicode wich is the linux default setting today

result : iptc comments is not in ascii

same pb if i type comment using "iptc modify" tool then iptc comment is not in
ascii

please provide an automatical conversion to the users using language as french
which contains special symbol as é for example

also you need it to make synchronization between iptc and xmp

is there a batch tool to convert to ascii all my iptc comments ?

thanks

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--- Comment #1 from Mikolaj Machowski <mikmach wp pl>  2009-07-06 13:04:20 ---
No. IPTC doesn't have to be in ASCII. According to Metadata Working Group they
should be reencoded to UTF-8 and write info about this to proper field (1:190)

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[Philippe ROUBACH]

https://bugs.kde.org/show_bug.cgi?id=199148





--- Comment #2 from Philippe ROUBACH <philippe roubach free fr>  2009-07-06 13:27:02 ---
ok but why is there a warning in iptc modify tool about comment must be in
ascii ?

why in the iptc block in the photo "ascii" preceeds comments ?

why jalbum photoweb and picasawed display bad symbols instead of special symbol
as é ?

i ask to jalbum dev.
he says the comments is annouced as asccii in iptc block then the comment is
convert to unicode then é is badly displayed.
happily in jalbum i can ask if i want to convert or not to unicode an already
unicode comment.

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--- Comment #3 from Mikolaj Machowski <mikmach wp pl>  2009-07-06 13:39:28 ---
Because this is recent agreement because companies: Adobe, Nokia, Sony, Canon,
Microsoft.

In the past this issue wasn't clear and many programs (most significant were
Adobe products) were treating everything like ASCII. But IPTC-IIM has tools for
supporting of non ASCII encodings and digiKam should use them.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=199148


Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |Metadata




--- Comment #4 from Gilles Caulier <caulier gilles gmail com>  2009-07-06 14:24:35 ---
But but but :

XMP replace IPTC and do not have IPTC limitation : assii char encoding + string
size !

I recommend to forget IPTC and use XMP instead.

Gilles

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--- Comment #5 from Philippe ROUBACH <philippe roubach free fr>  2009-07-06 14:33:50 ---
(In reply to comment #3)

so standards change.

what i understand :

In digikam 9.5 , i use currently, i have ascii tagged comment in iptc block
in digikam 1.0.0 i will use in the future i have no ascii tagged comment in
iptc comment

how user manages this change when switching to 1.0.0 ?

and more : apps are not synchronized. i use digikam, jalbum, picasa

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FiNeX <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[wish] iptc ascii vs        |iptc ascii vs unicode pb
                   |unicode pb                  |
           Severity|normal                      |wishlist




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--- Comment #6 from Gilles Caulier <caulier gilles gmail com>  2009-07-06 14:41:48 ---
Other arguments in favor to XMP : multiple language comment support : this is
done in 1.0.0-beta2.

IPTC do not support that.

For me, trying to wrap around all IPTC limitation to improve IPTC support in
digiKam is a waste of time. XMP support is fully implemented...

Gilles Caulier

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--- Comment #7 from Philippe ROUBACH <philippe roubach free fr>  2009-07-06 14:43:53 ---
(In reply to comment #4)

i agree with you the futur is xmp
your solution is good : to workaround pb use xmp comment
but

jalbum uses xmp comment but picasa i am not sure

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--- Comment #8 from Gilles Caulier <caulier gilles gmail com>  2009-07-06 14:49:22 ---
recent Picasa version, support XMP i think... I receive some test images from
users to test.

Gilles Caulier

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--- Comment #9 from Mikolaj Machowski <mikmach wp pl>  2009-07-06 18:20:12 ---
I think all "major" software (Lightroom, Aperture, FotoStation, Bridge) are
mainly using XMP now, with syncing to IPTC-IIM sometimes[1]. But there are
problems with "minor" software which due to cheapness, or no-price are still
immensely popular, there is also problem with some legacy photos which were
commented with IPTC tags (also including local encodings!). Latter should be
fully readable in digiKam (no ?s), former - like JAlbum here - also should be
someway supported. Background syncing with IPTC-IIM isn't bad solution.

[1] FotoStation claims syncing with IPTC-IIM but does it in such way that many
programs aren't able to read those blocks...

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--- Comment #10 from Philippe ROUBACH <philippe roubach free fr>  2009-07-06 18:43:42 ---
(In reply to comment #8)
> recent Picasa version, support XMP i think... I receive some test images from
> users to test.
>
> Gilles Caulier

i made a test with picasaweb and digikam 1.0.0b2

i upload a photo with comment containing an é then é is replaced by é

i have a doubt about picasa supporting xmp

i assume it supports previous iptc practice : ascii

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--- Comment #11 from Philippe ROUBACH <philippe roubach free fr>  2009-07-10 10:58:24 ---
(In reply to comment #6)
> For me, trying to wrap around all IPTC limitation to improve IPTC support in
> digiKam is a waste of time. XMP support is fully implemented...

with digikam 0.9.6 i have no pb with special symbols (as é for example) when
uploading to picasaweb
with digikam 1.0.0 i have a pb with special symbols (as é for example) when
uploading photos previously managed with 0.9.6 to picasaweb (yes a photo with
xmp comment synchronized)

when i will switch to digikam 1.0.0 with mandriva 2010.0 in october
how i manage the pb of the specials symbol in my photos ?

i understand its good for the workflow to switch from ascii to unicode but
where is the tool for the user for transition ?

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Gilles Caulier <[hidden email]> changed:

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




--- Comment #12 from Gilles Caulier <caulier gilles gmail com>  2009-07-20 12:45:15 ---
Philippe,

For me, working on IPTC UTF-8 support is waste of time. Picasa/Flickr and
others photo management program MUST support XMP as well... Please report at
the right place in closed source world...

Gilles Caulier

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Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|1.0.0-beta2                 |1.0.0




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