[email protected] schrieb am Samstag, 20. März 2021 um 20:06:56 UTC+1:

> Problem 1
>
> For example, using "%filename - %time" as the template, a jpeg produces 
>
> IMG_3664 - 01/18/46 PM.pto
>
> <snip>
Hugin is using the system setting for the date/time formatting. On my 
system the date/time format does not contains a slash. So I havn't seen 
this before. I fixed this in the repository. Now the slashes are replaced 
by an underscore. 
Also missing date/time value are now correctly handled.

Problem 2:
>
> If I use a png I created from a heic file (which hugin doesn't seem to 
> like) and to make sure it has all the date data that the original does 
> (with exiftool -tagsfromfile), hugin uses the literal string "%date" in the 
> filename. IOW it doesn't seem to read the date or time info at all. This 
> despite the png also having date/time info in PNG tags.
>
> Any help appreciated, but the first at least seems like a bug.
>

Hugin is using exiv2 to read the metadata, not exiftool. The displayed 
date/time is the EXIF DateTimeOriginal (Exif.Photo.DateTimeOriginal in 
exiv2 speech). PNG files have no EXIF data, the metadata are stored 
differently. So this is expected.
Can you provide a (small) sample png file, so I can have a look?

Thomas

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