Help please with copy of exif

[RuLex777]

Good afternoon.

Help to properly configure the copying of information.

The task is
Copy all exif information from one mp4 file to another; also copy the preview, if it is there, it is advisable to copy it in such a way that the order of the exif data is the same as in the source.

I will also be glad if you tell me how you can add garbage data to the video file to increase its weight.

Thank you

[StarGeek]

Most video metadata is Quicktime, not EXIF.  EXIF data in a video file is non-standard, but that doesn't stop camera companies from forcing it into the file.

If you run the command in FAQ #3, any data that has a group of ExifIFD or *IDF* is actual EXIF data and can't be copied.

The best you can try is
exiftool -TagsFromFile source.mp4 -all:all target.mp4

See this StackOverflow answer for example of padding the end of a file.