Hi,
I found a way to create thumbnails in the "Photos" by doing the following:
Everything looks great on my Mac, but when I transfer them to my Ipad I lose all the thumbnails.....
What am I doing wrong?
iPad Pro (M4, 2024)
It seems iPadOS Photos does not support custom poster frames.
As a quick test I made a custom poster frame by a) copying a frame and pasting it to Finder's Get Info and b) with ffmpeg by extracting a frame (from 50.2 seconds from the movie's start) and inserting it to movie's ItemList:CoverArt:
ffmpeg -ss 50.2 -i input.mp4 -frames:v 1 image-%03d.jpg
ffmpeg -i input.mp4 -i image-001.jpg -map 0 -map 1 -c copy -disposition:v:1 attached_pic output.mp4
macOS Sonoma 14.6 Finder displayed both custom poster frames OK although method a) does not use ItemList:CoverArt or any similar tag for this. However, the Photos.app does not display these custom poster frames either (the import dialog displays the method b) poster frame).
Then I used AirDrop to transfer the movies to iPadOS 17.6 but only the default poster frame from the very beginning of both movies was displayed.
It seems iPadOS Photos does not support custom poster frames.
As a quick test I made a custom poster frame by a) copying a frame and pasting it to Finder's Get Info and b) with ffmpeg by extracting a frame (from 50.2 seconds from the movie's start) and inserting it to movie's ItemList:CoverArt:
ffmpeg -ss 50.2 -i input.mp4 -frames:v 1 image-%03d.jpg
ffmpeg -i input.mp4 -i image-001.jpg -map 0 -map 1 -c copy -disposition:v:1 attached_pic output.mp4
macOS Sonoma 14.6 Finder displayed both custom poster frames OK although method a) does not use ItemList:CoverArt or any similar tag for this. However, the Photos.app does not display these custom poster frames either (the import dialog displays the method b) poster frame).
Then I used AirDrop to transfer the movies to iPadOS 17.6 but only the default poster frame from the very beginning of both movies was displayed.
I am curious if this is a Photos (Mac OS/Desktop) issue? Are you able to export the video to your desktop and have it retain the Thumbnail?
No. I can successfully set a poster frame inside Sonoma Photos library. But File > Export > Video does not preserve the poster frame.
Have you tried a Forced Reset of your iPad?
Force restart iPad - Apple Support
And by sure to let Mark know how you do the transfer...
I am curious if this is a Photos (Mac OS/Desktop) issue? Are you able to export the video to your desktop and have it retain the Thumbnail?
Thanks for your help.
I have tried a couple of things....
1) I tried making the thumbnails within Photos. The thumbnails appear as they should in Photos.
2) I created thumbnails using Quicktime (open movie in QT... scroll to find thumbnail, hit command C- copy, hit command I - info, and paste it into the Q icon). On my desktop the thumbnail is adjusted. However if I drag it into Photos it disappears.
3) I tried using Air drop and the finder window to transfer. I don't know of any other way.
2)
I have also read there is a way to do this in Compressor. Is there a way to do it without generating another movie (without compressing it again)? I guess just a save.
Gosh this seems harder than it ought to be!
I have tried a couple of things....
1) I tried making the thumbnails within Photos. The thumbnails appear as they should in Photos. When I export them they lose the thumbnails....
2) I also tried created thumbnails using Quicktime (open movie in QT... scroll to find thumbnail, hit command C- copy, close the quicktime movie, hit command I - info on the file,, and paste it into the Q icon in the top left corner.). On my desktop the thumbnail is adjusted. However if I drag it into Photos it disappears.
3) I've tried using Air drop and the Finder window to transfer. Neither workds... I don't know of any other way.
Is this a preference in Photos that I am missing?
How do you do the transfer from the Mac to the iPad?
I meant to say I used both Air Drop and the Finder window (using a USB connection) Neither worked.
The restart of both my Mac Book Pro and my Ipad Pro didn't do anything.
Thanks for any help.
I have to say this is absolutely maddening. It's like importing my entire Music collection and I lose all the titles for the songs and the artwork.
Thumbnail in Photos? - How to get it to work on my Ipad?
