C200: mp4 playback stutter in premiere on macbook

M

Michel

Well-known member
Had a frustrated editor on the phone with a sluggish editing experience using the mp4 50p UHD files.
on former edits they would play just fine but now they are stuttering and sluggish.

Editor did update to the latest 12.1.1 premiere.

anyone else experiencing this on a macbook?

Myself i'm on a job and not able to check on my windows machine.

thanks.
 
avian said:
hmmm this could be part of the problem
https://adobe-video.uservoice.com/f...-performance-in-premiere-pro-cc-2018-12-1-and
Click to expand...

This link is in regards to ProRes playback, so unless your editor transcoded the footage I think it's unrelated. Although, transcoding the footage to ProRes, even proxies to use during the edit, could alleviate some performance issues.

There are so many variables that could lead to sluggish performance in this scenario but a 50p UHD mp4 can be a menace to any non-modern MacBook (I have an i7 mid-2013 MacBook Air and I can have trouble with any mp4s above 1080p).

If the system worked before but now has an issue, I would check to see whether something has changed. An update to Premiere could cause the issue, sure, but if the drive he's reading / writing has more data on it, that could cause an issue. I sometimes even run into a playback issue on my 6 Core Mac Pro and I look up to find that Time Machine is running a backup of the footage I just imported so my scratch drive is being taxed.

All that said, can you tell us more about the specs of the system he's using? What model and year of MacBook is he working from?
 
macOS 10.13.5
macbook pro (retina 15-inch mid 2015
2,5Ghz i7
16GB ddr3
graphics intel iris pro 1536
 
avian said:
graphics intel iris pro 1536
Click to expand...

That would be the bottleneck. I'm sure under certain circumstances this graphics card is fine but it would be best to have a discrete AMD / Nvidia card for this type of footage. That said, and forgive me if this is ignorant because I'm a Final Cut Boi, he should be able to transcode to ProRes proxy and edit just fine.
 
For editing UHDp50 you need a powerful computer.

I would recommend a powerful desktop with a large monitor.

But if the editor insists on editing on that laptop, I would advice proxies.
 
update: reverting back to premiere 12.0.01 solved the issues so adobe definitely messed something up this update cycle.
 
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