Animated AVIF not playing about avifquicklook HOT 8 OPEN

Maybe the old generator based can not support animation. The new QLPreviewView (Which need a App, no longer a qlgenerator plugin) can custom draw anything on NSView

https://developer.apple.com/videos/play/wwdc2019/719?time=942
https://developer.apple.com/documentation/quicklookui/qlpreviewview
https://developer.apple.com/documentation/quicklook/qlpreviewingcontroller?language=objc

Maybe this is the future way to support animation.

from avifquicklook.

Emmm...QuickLook API design (from Apple) does not support Animated Image.
You see, it's received a CGContext (canvas, only draw one image), or CGImage (single frame)

We can only support to display animated AVIF into the static poster frame, is this enough for your use case ? @superbonaci

from avifquicklook.

For Preview (Space):

For Icon Thumbnail (See in Finder):

from avifquicklook.

Emmm...QuickLook API design (from Apple) does not support Animated Image.

I can play perfectly animated gif inside Quick Look (select the gif then Space Bar), for example this file: https://giphy.com/gifs/tag-sample-BfbUe877N4xsUhpcPc

If I click the "Open with Preview" button then it displays a static image, but that's not what I meant.

from avifquicklook.

You don't realize that GIF is Apple's internal QuickLook Plugin, which does not use the public API.

As a non-Apple company employee, I can not do the similiar thing, because the public API does not contains this ability.

qlmanage -m plugins

qlmanage -p example.avif

Check the verbose log, which point into this `/System/Library/QuickLook/Image.qlgenerator`

from avifquicklook.

If possible, I can try to dis-assemble that Apple's Image.qlgenerator and see how they render Animation on CGContext. Maybe using a Timer to refresh the canvas ?

Or find their private API, which may contains something like frame count, duration, etc

from avifquicklook.

You don't realize that GIF is Apple's internal QuickLook Plugin, which does not use the public API.

You mean that GIF is AN internal QuickLook Plugin, not the only one. The video you quoted talks about thumbnails, just hope your app doesn't create such files. Viewing or previewing any file should not create any new file or "cache" in the filesystem.

I wonder if you can make this work as a "plugin" and not having to install a full .dmg program.

from avifquicklook.

Maybe it's just a AVIFQuickLook.app, you can place it into anywhere you like (Because Mac has a Spotlight service, will search all .app in your disk), like ~/Documents/Tools/AVIFQuickLook.app, you don't need to open it at all.

Then you can preview the AVIFs animation.

from avifquicklook.