When I press space with a video selected on the desktop it shows the quick look preview and it starts playing the video but with certain files it always starts the video about 1 second after the beginning so I miss the first second of it. Not too big of an issue but kind of annoying, and it doesn't happen with every video
MacBook Air 13″, macOS 15.3
Many movie editor apps just hide the trimmed parts outside the GOP. Maybe this explains your issue?
For example, trimming a movie with QuickTime Player on a spot that is not an I frame preserves the BP frames before and after that spot but many apps like QuickTime Player just start displaying the movie from the I frame and ignore any BP frames before that.
On the other hand apps like Avidemux obediently display all frames of the trimmed movie, even before that trim spot. Avidemux neatly displays those IBP frames, and I often use it to trim movies so I can put the trims on I frames so there are no hidden frames left behind. Sometimes the GOP or distance between I frames might as be long as 7 seconds or so.
Some apps can edit to the frame instead to the GOP (i.e. I frame) but they must then re-encode the BP frames so the result is lossy regarding those few frames.
Is there any commonality within the files that show this problem (e.g. same type of file, codec, location...)?
Feel free to send Apple feedback.
The only similarity I can find is I think they are all either recorded with the built in mac screen recorder or OBS, they are a mix of .mp4 and .mov files in different locations
I usually trim videos by opening Quick Look and clicking the Trim button from there, and not all videos that I've trimmed that way have that problem. You're probably right though
Quick Look Video Preview Starting at Wrong Time
