[gdal-dev] gdal_translate drops XMP exif tags

[Javier Jimenez Shaw]

That makes more sense.
The PR that included the copy of the XMP is
https://github.com/OSGeo/gdal/pull/3050/
The key change is in the function GDALDriver::DefaultCreateCopy , that is
not used by gdalwarp
.___ ._ ..._ .. . ._.  .___ .. __ . _. . __..  ... .... ._ .__
Entre dos pensamientos racionales
hay infinitos pensamientos irracionales.



On Mon, 8 Aug 2022 at 22:16, Tom O'Reilly <oreilly at mbari.org> wrote:

> Hi Javier,
>
> As noted in my previous response, I was wrong about gdal_translate - it
> actually does transfer the XMP tags from the input to the output, as XMP
> tags.
> It is a subsequent call to gdalwarp that drops the XMP tags.
> I am running gdal 3.5.0
>
> Thanks
> Tom
> --------------------------------------------------
> Thomas C. O'Reilly
> Monterey Bay Aquarium Research Institute
> 7700 Sandholdt Road
> Moss Landing, California 95039-9644
> 831-775-1766 (voice)
> 831-775-1620 (FAX)
> oreilly at mbari.org (email)
> http://www.mbari.org (World-wide Web)
>
> "The machine does not isolate us from the great mysteries
>  of nature, but plunges us more deeply into them."
>
>    - ANTOINE DE SAINT-EXUPERY
>      "Wind, Sand, and Stars" (1939)
>
>
> ------------------------------
> *From: *"Javier Jimenez Shaw" <j1 at jimenezshaw.com>
> *To: *"Tom O'Reilly" <oreilly at mbari.org>
> *Cc: *"gdal-dev" <gdal-dev at lists.osgeo.org>
> *Sent: *Monday, August 8, 2022 12:03:39 PM
> *Subject: *Re: [gdal-dev] gdal_translate drops XMP exif tags
>
> Which version of GDAL are you using?
> in https://gdal.org/programs/gdal_translate.html there is an option,
> "-noxmp", since GDAL 3.2. Without that option it should keep them. If I
> remember correctly, the XMP tags are copied as proper XMP, not as
> GDALMetadata, with TIFF files.
>
> An example with "gdalinfo -mdd all" for input and output may help.
> .___ ._ ..._ .. . ._.  .___ .. __ . _. . __..  ... .... ._ .__
> Entre dos pensamientos racionales
> hay infinitos pensamientos irracionales.
>
>
>
> On Mon, 8 Aug 2022 at 20:32, Tom O'Reilly <oreilly at mbari.org> wrote:
>
>> gdal_translate output .tif file does not contain XMP tags that were
>> present in the input .jpg file.
>> The output file contains many of the input EXIF tags, aggregated as the
>> GDALMetadata tag, but not the XMP tags.
>> Why does gdal_translate remove XMP tags - is there an option to preserve
>> them?
>>
>> Thanks
>> Tom
>> --------------------------------------------------
>> Thomas C. O'Reilly
>> Monterey Bay Aquarium Research Institute
>> 7700 Sandholdt Road
>> Moss Landing, California 95039-9644
>> 831-775-1766 (voice)
>> 831-775-1620 (FAX)
>> oreilly at mbari.org (email)
>> http://www.mbari.org (World-wide Web)
>>
>> "The machine does not isolate us from the great mysteries
>>  of nature, but plunges us more deeply into them."
>>
>>    - ANTOINE DE SAINT-EXUPERY
>>      "Wind, Sand, and Stars" (1939)
>>
>> _______________________________________________
>> gdal-dev mailing list
>> gdal-dev at lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/gdal-dev
>>
>
>
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