Manual thumbnail Generation questions

Hi all;

Because of a recent issue with omeka and imagemagick that took me and other folks weeks to figure out how to work around, I’m starting to look at alternate ways of generating thumbnail images for video files.

The problem is, there doesn’t seem to be any way to do that-from what I can see in the manual and the forum topics I’ve dug up, the only way to get Omeka to accept and use thumbnail files outside of the autogeneration process is to manually create the files with a tool outside of omeka, then put the thumbnails directly into the omeka filesystem (using something like scp), then modify fields in the database so that omeka knows they exist. I can’t find any way of uploading pregenerated thumbnails using the omeka UI. Does one exist and I’m missing it?

Is there a plugin that would allow you to manually upload a thumbnail for a video file that’s already in omeka? I don’t see anything that would seem to do that.

Looking at the omeka classic docs, it looks like this:

https://omeka.readthedocs.io/en/latest/Tutorials/derivativeStrategies.html

Might be exactly what I want. If I’m reading this right, I could replace the process Omeka currently uses for autogenerating derivative images only for video files with another one completely of our choosing, including one that does not use imagemagick.