sidecar file names

[Henrik Hemrin]

Clarification: When I below guess that data from other sw may be lost, I 
do not mean all data, much meta data will indeed imported into digikam 
data base (this is how I migrated to digiKam). But I believe some data 
in xmp side cars created by other sw will be erased if you create fresh 
ones from digiKam data base.

/Henrik, again

Den 2024-07-27 kl. 16:29, skrev Henrik Hemrin:
> typo, ...thinking loud...
> /Henrik
> 
> Den 2024-07-27 kl. 16:27, skrev Henrik Hemrin:
>> Mmm first of all, I would take a fresh backup of everything.
>> I'm thinking load, because I do not know below for sure.
>>
>> I think a possible method is to first make sure data is in digiKam 
>> dataBase, then delete the xmp's, change setting to off and then write 
>> new fresh xmp side car files.
>>
>> However, your current side side cars P1234.xmp can, depending on your 
>> use case, have a lot of other meta data created by other sw than 
>> digiKam, which you want to preserve, which I assume will be lost if 
>> you create fresh ones. For example, I started with Photoshop Elements, 
>> over Lightroom, to digiKam. I may also have data from AfterShot and 
>> possibly some other sw as well. I believe those xmp data sources will 
>> be lost.
>>
>> The "commercial" P1234.xmp is in my understanding according to 
>> standard/industry standard, while digiKam and some more sw use 
>> P1234.DNG.xmp. The digiKam way indeed has its advantages to 
>> distinguish sidecars on file types. Exactly if there is any other 
>> advantage with P1234.DNG.xmp, I do not know. I'm still on the 
>> commercial method, kept it from my pre-digiKam days and continued that 
>> way, but your question is of interest to me.
>>
>> The developer of the Rapid Photo Downloader for Linux, writes and 
>> argue about the topic on his faq, incl links to Adobe (broken link) 
>> and pixl.us discussion. https://damonlynch.net/rapid/faq.html I am not 
>> compentent to debate for either procedure, only can note that 
>> commercial is not the preferred method for digiKam.
>>
>> I suppose you could rename "manually" your existing P1234.xmp to 
>> P1234.DNG.xmp, but no idea what consequencies that can have.
>>
>> Regards
>> Henrik
>>
>> Den 2024-07-27 kl. 16:09, skrev frederic chaume:
>>>
>>> you can delete until you are sure the database has been synchronized 
>>> from the metadata from the files (currently on-going, but taking hours )
>>>
>>> in the maintenace tool , there is a synchronization from database to 
>>> metadata files but I don't know what is the behavior with the 
>>> "sidecar file names are compatible with commercial products" set to 
>>> OFF regarding the existing sidecar files
>>> is there someone who already used it ?
>>>
>>> frederic
>>>
>>>
>>> Le 27/07/2024 à 15:26, digikam at boeziek.nl a écrit :
>>>> I can be mistaken, but I thought you could always delete the XMP 
>>>> files and then force Digikam to create them from its own database 
>>>> (just make sure you have backup always!).
>>>>
>>>> Else you could probably do a rename with a tool or shell command (I 
>>>> am no Windows user).
>>>>
>>>> XMP files are a struggle for me too (set with or without 
>>>> compatibility), still have not settled on one or the other.
>>>>
>>>> Best,
>>>> Etienne
>>>>
>>>> On 27 Jul 2024, at 15:08, frederic chaume 
>>>> <frederic.chaume at gmail.com> wrote:
>>>>
>>>> Hi all
>>>>
>>>> If I can ask it differently to make it more clear:
>>>>
>>>> how to move from "sidecar file names are compatible with commercial 
>>>> products" ON to OFF
>>>> that means how to replace basename.xmp (example P1234.xmp as a 
>>>> sidecar for P1234.DNG  ) to basename.ext.xmp (example P1234.DNG.xmp 
>>>> as a sidecar for P1234.DNG  )
>>>>
>>>> I have hundred of thousands of files and I don't expect renaming all 
>>>> my xmp files
>>>>
>>>> thanks for your help
>>>>
>>>> frederic
>>>>
>>>>
>>>>
>>>> Le 26/07/2024 à 10:01, frederic chaume a écrit :
>>>> Hi all
>>>>
>>>>
>>>> currently the parameter "sidecar file names are compatible with 
>>>> commercial products" is set. That means the name I can see is 
>>>> basename.xmp and these are the files I can see in the folders where 
>>>> I have RAW files
>>>>
>>>> Now seems there are some compatibility issue with another progam 
>>>> (DXO) which is exepecting unique xmp names (conflict may occur 
>>>> between RAW files and DNG files)
>>>>
>>>> So I started to unset this parameters, the problem is when I start 
>>>> DK , it started a long process of "finding new items" and seems some 
>>>> files are missing tags and rating in the album view, while the 
>>>> correct information is still present in the associated basename.xmp
>>>> then I have aborted the process of finding new items, set back the 
>>>> parameter "sidecar file names are compatible with commercial products"
>>>> and I run a "read metadata from file to database" to recover the 
>>>> information in the album view
>>>>
>>>> So question is what is the process to reset this parameter without 
>>>> loosing information?
>>>> I'm using DK 8.4 on windows
>>>>
>>>> thanks in advance
>>>>
>>>> frederic
>>>>
>>>>
>>>