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Sat Jul 18 10:53:09 EEST 2020
  • Previous message (by thread): [FFmpeg-user] How to change internal Exif "creation time" NOT to UTC timestamp but to MEZ/MESZ in MP4 video?
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  • Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] On Sat, 18 Jul 2020, Ben via ffmpeg-user wrote: > Ok, I can change the internal EXIF Metadata "Creation time" of an MP4 video > with the following command: > ffmpeg -i input.mp4 -c copy -map 0 -metadata creation_time="2020-04-19 > 11:30:00" output.mp4 > It works. > However the date is interpreted as UTC time zone value. No, it is interpreted as local time. > Since I the videos are taken in the timezone MEZ resp. MESZ (summer time) the > timestamp does not reflect the real time of recording. > Ok, I could manually investigate if at the time of recording it was summer > time or not and add 1 or 2 hours to the command timestamp value. > But this inconvenient and tedious on the long run. > Isn't there a way to tell ffmpeg: > "Hey ffmpeg, this is the UTC time. Put AUTOMATICALLY the MEZ zone time > (winter time) or MESZ zone time (Summer time) in EXIF header" You should be able to specify the UTC offset as specified in ISO-8601. 2020-04-19T11:30:00+0100 Regards, Marton
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