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danield25437812
Inspiring
December 7, 2021
Question

Playback Stutters with Clips Below It

  • December 7, 2021
  • 1 reply
  • 256 views

Here's a weird thing I just started noticing maybe a couple months ago. When I have more than one video on the timeline, with no visible pixels from any of the videos below the one on the top track, playback stutters. I have no idea why this would happen, given that the videos below the main one aren't playing back at all, but I've been noticing it more and more. I'm using h.264 footage, mp4 files, video that I'm bringing in from Steamlabs.

 

Like right now, I'm using a 3840x2160 MPEG movie MP4/MOV H.264 4:2:0 30fps. I need it to be vertical video, so I changed the sequence settings from 1920x1080 to 1080x1920 and now, the video hardly plays. But when I disabled all the clips under it that weren't being displayed or played, it plays back fine. It played back before when the sequence settings were 1920x1080 but no longer.

 

And I notice this, like I said, with video files I download from YouTube or other mp4 files that are stacked, even when I don't change the sequence settings. I feel like this is new behavior, regardless. video that's not being played should not be affecting playback, right?

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1 reply

R Neil Haugen
R Neil Haugen
Legend
December 7, 2021

If the videos are enabled on any track, Premiere has to work them also in case they have any pixels that will be shown. Ergo, the behavior you are getting. If you're not going to be using a clip, remove it.

 

Neil

Everyone's mileage always varies ...
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danield25437812Author
Inspiring
December 7, 2021

"In case they have any pixels that will be shown?" Doesn't Premiere know if a pixel will be shown unless the user interrupts playback? That seems like a super inefficent way to work, and a behavior that I have not noticed until a couple months ago. Even just two tracks, one on top of the other, slows it to a crawl. Cutting between clips on a sequence is super basic and if this is the way it's supposed to work, constantly having to delete clips below, then add them back, then delete them or disable them, then enable them again, then that's a huge problem.

R Neil Haugen
R Neil Haugen
Legend
December 7, 2021

I've not noted any problems with ability to get playback in multi-track sequences on my rig. But all things are variable, all situations different. My comment was just in general ... if you have clips on a sequence that are enabled, Premiere has to handle them.

 

If something has changed on your system recently, and it could be a ton of things including some that are bizarre (from past experience) ... then it could be that change is causing stress during playback.

 

Neil

Everyone's mileage always varies ...
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