Why won't mp4 video play through QuickLook on macOS?

Question

macOS

There is an original video in .mkv format

Original video metadata

There are FFmpeg settings for conversion.

ffmpeg -loglevel warning -stats -i /Users/basil/Downloads/Кухня\ в\ Париже.mkv -pix_fmt yuv420p -vf scale=1280:720:flags=bicubic -f mp4 -preset:v slow -preset:a slow -map_chapters -1 ~/Downloads/Кухня.mp4 -n

After which I have two files: .mkv and .mp4 . But this particular .mp4 macOS doesn't want to play through QuickLook.

Doesn't want to play through QuickLook

Comparison of two .mp4

Comparison of .mkv and converted .mp4

Tell me, please, how to fix this?

Thanks in advance!

Answer 1

I'm using Windows os I can't test on Mac os
Try using my MKV file - MP4.bat
Here is a link to my FFMPEG_BAT
repository If that doesn't work then xs. to yourself in a .bat file that's all

Answer 2

The fact is that Quicklook plugins are required to view Quicklook and out of the box it does not play all files.
https://github.com/Marginal/QLVideo