HDRMerge_master_continuous-64-g1408e42_release_64\hdrmerge.exe (2019-07-25, does not contain the string “JPG”) => DSCF4758-4758.dng (13056040 bytes, does not contain the string “JFIF”)
HDRMerge_release-v0.6_continuous-71-gd7d8041_release_64\hdrmerge.exe (2020-02-24, contains the string “JPG” once) => DSCF4758-4758.dng (13056040 bytes, does not contain the string “JFIF”)
For Windows, this will be a qjpeg.dll like in Luminance HDR.
I copied that DLL over to a subdirectory imageformats below the HDRMerge installation, and it created a DNG file containing a JPEG preview. You will prefer to deploy a current version from your QT 5 installation for future releases.
I sort of messed up the build. Contrary to other SW I build with QT (filmulator, luminancHDR), there was no complaint about missing items.
correcting that error.
edit: It’s the problem with QT plugins. They are not managed by windeployQT.exe and I don’t know how to identify required plugins.
Build is corrected. Could you test?
thanks @LigH-de and @ff2000