[digiKam-users] User script in Batch Queue Manager

[Maik Qualmann]

Hi Dmitri,

For your example it would be right:

 jpeg-recompress -quality high $INPUT $OUTPUT

The peculiarity of the script is that it is assumed that a new target file 
($OUTPUT) is always created. Should e.g. only metadata on the original image 
are changed, you have to add a copy process yourself in the script. So 
depending on the operating system:

 cp $INPUT $OUTPUT

Then only the $OUTPUT file can be changed using a shell command.
Whether the new file then overwrites the original file or is created as a new 
one with a different name depends on the settings in BQM.

Maik

Am Donnerstag, 23. April 2020, 16:33:29 CEST schrieb Dmitri Popov:
> Hello,
> 
> Recently, I stumbled upon the User Script tool in Batch Queue Manage. Since
> it's completely undocumented, I can't figure out how it works. Say I need
> to run jpeg-recompress on all images in the current job. The command has
> the following format:
> 
> jpeg-recompress -quality high original.jpeg result.jpeg
> 
> What would it look like in the User Script tool?
> 
> Thank you,
> Dmitri