Am 01.03.20 um 14:55 schrieb Reino Wijnsma:
On 2020-02-27T13:23:02+0100, Ulf Zibis <ulf.zi...@gmx.de> wrote:
unfortunately I now see, that there is a problem with that. Some other
tags were completely removed, e.g. creation time, geo tags, etc
What must I do to preserve all tags?
I believe the -map_metadata option is what you're looking for.
ffmpeg -i <input> -map_metadata 0 -metadata:s:v rotate=0 -c copy <output>
It still "eats" few tags (e.g. mdhd_Duration), but creation time is
preserved. :-)
At the first view I missed the geo tag. In the original, mediainfo shows:
Encoded date : UTC 2020-02-05 19:55:01
Tagged date : UTC 2020-02-05 19:55:01
xyz : -00.7655-047.1715/
But after transcoding with ffmpeg it only shows:
Encoded date : UTC 2020-02-05 19:55:01
Tagged date : UTC 2020-02-05 19:55:01
ffprobe from the original shows:
creation_time : 2020-02-05T19:55:01.000000Z
location : -00.7655-047.1715/
location-eng : -00.7655-047.1715/
And after transcoding with ffmpeg it shows:
creation_time : 2020-02-05T19:55:01.000000Z
location-eng : -00.7655-047.1715/
location : -00.7655-047.1715/
So it seems, that -map_metadata maps "xyz" to "location" and
"location_eng" and mediainfo is not able to detect the latter.
And ffprobe does not list one of "Encoded date" or "Tagged date".
Much thanks for your hint!
P.s. top-posting here is considered rude, so please stop it.
In case of 1-liners I sometimes forget this, sorry.
-Ulf
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