File locking problems since v1.96

[sammoth]

Hi, I saw there is a comment on the wiki about not being able to rename or delete files on external drives while QL is thumbnailing and that this is unavoidable. I didn't encounter this issue before 1.96, but since installing the 'Finder extension' version of QLVideo every file that is thumbnailed will be locked in this manner for maybe 30 seconds-2 minutes, and this happens on my root drive.

This is easily reproducible for me using version 2.00:

• Open a folder in finder, eg. Desktop
• Generate a blank video in that folder using ffmpeg like ffmpeg -t 60 -s 640x480 -f rawvideo -pix_fmt rgb24 -r 30 -i /dev/zero empty.mkv
• After ffmpeg finishes, the video file does not have a thumbnail, for at least multiple minutes, but resetting quicklook and restarting Finder will immediately generate the thumbnail
• Trying to delete the file immediately after ffmpeg finishes will hang for 1+ minute

Rolling back to 1.95 fixes this problem completely, on Ventura 13.1. With 1.95:

• The thumbnail appears immediately after ffmpeg finishes
• The file can be immediately deleted

I realise this might be an Apple issue with the handling different type of extension but I thought I would report it anyway. Thank you for QLVideo!

[goodman-capu]

Thanks for the solution. Rolling back to pre-1.96 fixed all the problems for me in Ventura 13.3

How did you conclude it's an Apple problem? IMO it's qlvideo taking too long & too much CPU to generate thumbnail that caused the hang.

BTW this is the command to install v1.94 (no 1.95 available in brew)

brew install --cask https://raw.githubusercontent.com/Homebrew/homebrew-cask/3670a86a4cac36cf7a8a7d5dc9ec1e84068df4dd/Casks/qlvideo.rb

[Kagami]

killall -9 com.apple.quicklook.ThumbnailsAgent helps to unstuck thumbnailer on my machine (but be cautious with that command, not sure if it's safe).