https://bugs.kde.org/show_bug.cgi?id=484959

--- Comment #8 from Maik Qualmann <metzping...@gmail.com> ---
Well, just by the way, you disabled writing some captions metadata, Exif user
comment, XPComment, ACDSee...

But it doesn't matter. Videos generally do not have Exif, Iptc or Xmp metadata.
They often have a QuickTime container or manufacturer-specific Makernotes.

Our metadata display would probably be completely empty for most video files.
That's why we interpret the metadata found as Exif or Iptc and Xmp. This
happens partly through our FFmpeg parser and through ExifTool itself.

So we then have a filled metadata container that is written back when there is
a change (captions added). Hence the large number of changes.

My idea now is that before we write video metadata we read the metadata again,
but only the Exif, Iptc or Xmp metadata that is actually present.

Maik

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