[Digikam-users] 2 problems tagging multiple images

Phil philtuckey at free.fr
Thu May 29 07:13:52 BST 2014

The sidecar problem mentioned below is running dk 4.0.0 and 3.5.0 on 
OSX, my usual os. However I have a dk 3.3.0 on linux which does not show 
this problem. Therefore I want to try older versions of dk on OSX. I was 
able to compile 3.4.0, which shows the same problem.

I was unable to compile 3.3.0, because of the following error. Anyone 
know if I can change a compile flag or something to get past this? Thanks.

[  4%] Building CXX object 
In file included from 
       control may reach end of non-void function [-Werror,-Wreturn-type]
1 error generated.
make[2]: *** 
Error 1
make[1]: *** [extra/libkdcraw/libraw/CMakeFiles/libraw.dir/all] Error 2
make: *** [all] Error 2

On 29/05/14 08:01, Phil wrote:
> I am still looking for the source of the problem I meet when selecting
> and tagging multiple images simultaneously - a small number of the xmp
> sidecars are truncated to just the first line, apparently randomly.
> I tried different versions of Exiv2 to see if that changes something. Dk
> 3.5.0 compiled with Exiv2 0.24, 0.23, 0.22 all show the same problem. Dk
> 4.0.0 with Exiv2 0.24 and 0.23 also show the same problem. (Dk 4.0.0
> with Exiv2 0.22 doesn't write any sidecars because Exiv2 fails on the
> mwg-rs tags.)
> On 19/05/14 23:24, Phil wrote:
>> Hi
>> I meet the following problems when tagging multiple images at the same
>> time, in both 4.0.0 and 4.1.0. I don't see this problem in a 3.3.0 which
>> I happen to have on another machine. Anyone else see this?
>> How to generate:
>> Select 10 images.
>> Apply a tag to all.
>> Problem 1, XMP metadata not always updated in image files:
>> When writing metadata to the image files, dk occasionally omits to write
>> the new XMP metadata, leaving the previous XMP metadata in the image
>> file. This can be seen by for example by tag fields not being updated
>> when tags are changed and applied. You have to look through the images
>> one-by-one to find one or two where this has happened. (The IPTC
>> metadata is always written correctly, so when this happens there is a
>> difference between the IPTC:Keywords (tags) field and the various XMP
>> tags fields.)
>> Problem 2, xmp sidecars sometimes truncated:
>> Occasionally one or more of the xmp sidecars is truncated to just its
>> first line, with a size of only 39 bytes. (Use a file manager to see
>> that this has happened.)
>> If the problems don't show up the first time, change the tags and then
>> re-apply. Over 2 or 3 cycles I always see both problems appear.
>> I see this behaviour when 10 (or more) images are selected. I have not
>> seen it with only 1 or 2 images selected. I haven't checked in between.
>> The problems appear random. A file which has a problem the first time
>> usually doesn't have it after tagging a second time.
>> The problems appear to be independent, i.e. when writing metadata to
>> both sidecars and image files, they don't occur together, they affect
>> different images.
>> Regards
>> Philip
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>> Digikam-users at kde.org
>> https://mail.kde.org/mailman/listinfo/digikam-users
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