Mission impossible - how to add metadata picture to MOV/MP4 file (Dropbox issue)

[exifzarko]

Hello!

I have tried and succeeded in adding a metadata picture to a MOV/MP4 movie, but the result is ok on my computer and not on Dropbox. So, either I have incorrectly applied the metadata picture in my video or Dropbox disregards metadata and reads a video file in its own way. This file https://www.dropbox.com/s/c8iy3t80cy9ui38/Vizual_video_1920x1080_animacija_final1.mov?dl=0 should have this cover icon/thumbnail https://www.dropbox.com/s/pxwtfrbia3qud6e/Urbana%20danska%20rjesenja.png?dl=0.

Could EXIFTOOL help bridge this problem?

Please help!

Thanks,

Zarko.

[StarGeek]

The only metadata I've seen Dropbox read is EXIF:DateTimeOriginal or EXIF:ModifyDate for timeline placement and GPS data to give an approximate location.  I don't believe it reads any other data.

[exifzarko]

Thanks StarGeek! You are right, I think it is a dead end in this case. With Youtube it is the same story, but after you have uploaded a video then you are given an option to choose a thumbnail for the cover. There are several options, one of which is the embedded png that I have encoded with Handbrake. If I want to use EXIFTOOL for embedding a png into a mov/mp4 file, what command line would write such metadata? Could you please write it? Thanks!

[Phil Harvey]

ExifTool can't currently be used to write a PNG into a MOV/MP4 video.

- Phil

[exifzarko]

Thanks Phil. It would be great to see this feature in the future versions of Exiftool :-)