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Adam3402411949zv
Participant
March 4, 2024
Answered

Stuttering preview 4K HEVC 10 bit 420

  • March 4, 2024
  • 2 replies
  • 922 views

Hello,

 

I have a DJI Mini 3 Pro with which I took the following shot:

Type: MPEG Movie
File Size: 373,17 MB
Image Size: 3840 x 2160
Frame Rate: 29,97
Total Duration: 00:00:33:18
Pixel Aspect Ratio: 1,0
Alpha: None
Color Space: Rec. 709
Color Space Override: Off
Input LUT: None
Video Codec Type: HEVC 10 bit 4:2:0

 

The preview playback is perfect until, i change the speed of the video. After that it crashes and becomes unusable. I tried the same after the render selection and with a proxy.

 

The following are set as Preview file format: QuickTime, ProRes 422 LT

 

Any idea what should be done?

 

Thanks,

Adam

 

My system: 

cpu AMD Ryzen 7 5800HS

gpu: NVIDIA GeForce RTX 3060

This topic has been closed for replies.
Correct answer R Neil Haugen

That is a nasty form of long-GOP video, great for fast writing of small files in the camera due to on-board special chips to do it. LOUSY for editing.

 

The DJI rigs not only do long groups of images between complete "iframes", they often do partial iframes ... so your machine may be needing to completely decompress and decode up to 60 or more frames, keeping them in a live buffer, to display anything.

 

It manages basic playback, but you do any speed changes, Lumetri, Warp, resizing, it's gonna choke.

 

I work for/with/teach pro colorists. Most of them on "heavy iron" that makes your computer look like a child's toy. And they HATE long-GOP, especially drone, media. Nearly always do an immediate transcode for any client files that come in for grading. To ProRes or DNx. Then dump the t-codes at the end of the job.

2 replies

R Neil Haugen
R Neil HaugenCorrect answer
Legend
March 4, 2024

That is a nasty form of long-GOP video, great for fast writing of small files in the camera due to on-board special chips to do it. LOUSY for editing.

 

The DJI rigs not only do long groups of images between complete "iframes", they often do partial iframes ... so your machine may be needing to completely decompress and decode up to 60 or more frames, keeping them in a live buffer, to display anything.

 

It manages basic playback, but you do any speed changes, Lumetri, Warp, resizing, it's gonna choke.

 

I work for/with/teach pro colorists. Most of them on "heavy iron" that makes your computer look like a child's toy. And they HATE long-GOP, especially drone, media. Nearly always do an immediate transcode for any client files that come in for grading. To ProRes or DNx. Then dump the t-codes at the end of the job.

Everyone's mileage always varies ...
Peru Bob
Community Expert
Peru BobCommunity Expert
Community Expert
March 4, 2024

Make sure to use a Studio Driver from NVIDIA (NOT the Game Driver), but not the latest version - it has issues with Premiere Pro.

Go here to download:

https://www.nvidia.com/en-us/geforce/drivers/results/218115/

 

Choose Clean installation and don't install GeForce Experience.

 

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