https://bugs.kde.org/show_bug.cgi?id=494640

--- Comment #16 from caulier.gil...@gmail.com ---
Hi Rolf,

About the speed, it's clear. There is nothing to improve in digiKam as we are
relevant to the open source DNG SDK which is not all the code of the Adobe DNG
Converter, only the backend to process files.

We are also dependent on the libraw library used in digiKam to extract non
demosaiced RAW data and pass it to the DNG converter. Here also, no
improvements can be done about the speed as extraction is streamlined with the
RAW file. No preprocessing is done in libraw where we can expect to parallelize
something.

About the quality and the rendering of the DNG conversion, we apply the best
metadata backport and adjustments that we know to pass to the DNG SDK. You must
know that even if the DNG SDK is an open source component, there is no doc and
examples available. It's difficult to use and tune. Also, at each DNG SDK
version the API changes and the SDK calls must be adjusted, without any help
from the Adobe team.

So for me, the best thing to do is already here in digiKam. Do not expect
serious improvements in the future...

Best regards

Gilles Caulier

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