Is there an EXIF-like video header in *.MP4 files? Show and change without re-encoding?

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Is there an EXIF-like video header in *.MP4 files? Show and change without re-encoding?

FFmpeg-users mailing list
 From *.jpg pictures I know that there is a hidden header which contains e.g. info about the original creation time of the picture/photo.

Is there something similar in *.MP4 video files?

How can I use ffmpeg to show these data?

How can I change the internal creation timestamp with ffmpeg?

How can I change the external Windows last modified+creation time automatically matching the internal creation timestamp?

This should occur WITHOUT havin to re-conde the full video.

Thank you
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Re: Is there an EXIF-like video header in *.MP4 files? Show and change without re-encoding?

Michael Koch
Am 13.05.2019 um 12:04 schrieb Ben via ffmpeg-user:
> From *.jpg pictures I know that there is a hidden header which
> contains e.g. info about the original creation time of the picture/photo.
>
> Is there something similar in *.MP4 video files?

yes, and you can view the data with exiftool:
https://www.sno.phy.queensu.ca/~phil/exiftool/

> How can I use ffmpeg to show these data?

I don't know.

Michael
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