Piwigo.org

Phil35 · 2024-11-11 11:36:15

Hi,

I solved creation date issues for photos and videos using the command exiftool.

Example for a mp4 file:
Before:
$ exiftool ./2024_09_21-10-01/20240929_194336.mp4 |grep "Create Date"
Create Date : 0000:00:00 00:00:00

After:
$ exiftool ./2024_09_21-10-01/20240929_194336.mp4 |grep "Create Date"
Create Date : 2024:09:29 19:43:36

comand used to modify:
$ exiftool -AllDates="2024:09:29 19:43:36" ./2024_09_21-10-01/20240929_194336.mp4
1 image files updated

It is not so difficult to script that
Hope this will help
Phil

Last edited by Phil35 (2024-11-11 11:36:44)

Kiko@Sea · 2024-11-11 16:48:14

Dear readers,

Thank you, Phil35, for your advice. I tried it. It works. But then...

I took a random jpg-file with no date and gave it a date of 0/0/1850 using exiftool. I had to use the -n option, to avoid an error notice.

IrfanView gives me a confirmation that the date had been defined:
DateTime - 1850:00:00 00:00:00
DateTimeOriginal - 1850:00:00 00:00:00
DateTimeDigitized - 1850:00:00 00:00:00

I uploaded this image to Piwigo (15), opened it and the creation date suddenly is 31/12/1899. Curious, isn't it? What may have happened?

Thanks!

Kiko

erAck · 2024-11-11 20:06:27

1850-00-00 is an invalid date anyway maybe resulting in a 0 or false date, and likely Piwigo somewhere has a minimum for an invalid date of 1899-12-31. Maybe it's also related to that in PHP "The valid range of a timestamp is typically from Fri, 13 Dec 1901 20:45:54 UTC to Tue, 19 Jan 2038 03:14:07 UTC. (These are the dates that correspond to the minimum and maximum values for a 32-bit signed integer.)", as cited from https://www.php.net/manual/en/function.strtotime.php

¯\_(ツ)_/¯

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#16 2024-11-11 11:36:15

Re: Setting Creation Date

#17 2024-11-11 16:48:14

Re: Setting Creation Date

#18 2024-11-11 20:06:27

Re: Setting Creation Date

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