Great plugin, but I've got into problems installing it on macOS Catalina 10.15.4 (19E287)
I didn't even had ~/Library/QuickLook folder, created this folder and put the plugin here, nothing happened. Tried to run the binary with Control key so it gets "registered", didn't help.
Only after I put the plugin into /Library/QuickLook it started to work

Maybe Readme file needs some corrections?

Hello,

There are 3 dependency files libaom.a libavif.a libgb.a. From where do you got those so we can update if we want?

Résult for qlmanage -p test.avif :

Testing Quick Look preview with files:
test.avif
2022-03-12 15:50:34.994 qlmanage[10255:82062] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x8d03, name = 'com.apple.coredrag'
See /usr/include/servers/bootstrap_defs.h for the error codes.
2022-03-12 15:50:35.094 qlmanage[10255:82062] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0xb41f, name = 'com.apple.tsm.portname'
See /usr/include/servers/bootstrap_defs.h for the error codes.

If I put the file under ~/Library/QuickLook, it still does not show me any .avif file preview. Tried a reboot, same thing. Is there any extra step I need to take?

使用空格预览文件没有缩略图。

• Using the 1.0.1 release.

• Copied that to /Library/QuickLook/ (no tilde ~)

• Worked once I ran this in Terminal, per the Mac OS Big Sur instructions, but agains minus the tilde ~:
  xattr -d -r com.apple.quarantine /Library/QuickLook/AVIFQuickLook.qlgenerator

Thanks @dreampiggy !

first origin heif, second avif

File sequence-without-pitm.avif from this bug is animated:
AVIF (AV1 Image File Format): image sequence and animation support

But animation is not played by AVIFQuickLook, only static image. Google Chrome does play it.

$ qlmanage -p sequence-without-pitm.avif
Testing Quick Look preview with files:
	sequence-without-pitm.avif
2023-07-25 10:39:29.280 qlmanage[3543:28404] +[IKImageContentView _clampImageAlphaTo01:colorSpace:] no CIImage passed in
2023-07-25 10:39:29.280 qlmanage[3543:28404] IKImageView2 _updateContentForLayerUsingIOSurface Error: source rect and destination rect of tile being drawn are not the same

Thanks for a great extension!
Could you add it to brew.sh? It would be easier to update/install it.

Problem

I could not get it to work on MacOS Big Sur. Images didn't open in preview, showing a blank icon.
Running "qlmanage -p test.avif" in terminal shown following errors:

qlmanage[1322:18428] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x6b03, name = 'com.apple.coredrag'
See /usr/include/servers/bootstrap_defs.h for the error codes.
2021-01-09 03:16:14.330 qlmanage[1322:18428] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x801b, name = 'com.apple.tsm.portname'
See /usr/include/servers/bootstrap_defs.h for the error codes.

Solution

After a while of googling, I've found this to solve the problem completely - simply run this command in terminal:

xattr -d -r com.apple.quarantine ~/Library/QuickLook/AVIFQuickLook.qlgenerator

Note, the location above ~/Library/QuickLook/ is if you've copied the AVIFQuickLook there for just your user. If you copied the file for all users, to /Library/QuickLook, obviously change the path accordingly.

See: https://developer.apple.com/videos/play/wwdc2019/719?time=942

Apple introduce new QuickLook Preview Extension, which you need a macOS App and bundle it as appex extension. Then you can render anything for preview, using AppKit (like NSViewController/NSView) or even SwiftUI

Since some user like #17 need animation or complicated display render result, we may consider migrate to the new solution

Note:

1. This need a dummy App, which means you will install something like AVIFQuickLook.app into /Applications

Unable to play this avif. Installed from brew.sh.

animation-woods.avif.zip

Latest xcode required me to import this library explicitly.

@import CoreGraphics;

Added to /Library/QuickLook
then ran $ xattr -d -r com.apple.quarantine /Library/QuickLook/AVIFQuickLook.qlgenerator
then relaunched finder

still blank

MacOS Version: 12.6
AvifQuickLook:1.1

The thumbnail can be previewed in finder, but it cannot be opened through preview app.