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michaelm11605974
michaelm11605974
Known Participant
April 13, 2022
Question

Dropped Frames AVC-Intra 100

  • April 13, 2022
  • 4 replies
  • 2460 views

Hi,

 

Just switched from a 2013 MacPro to the below PC.

 

Using Adobe 2022 and 2021 I'm getting dropped frames in the source window when playing back media. It's usually around 28 dropped frames. We did not have this issue with the previous Mac.

 

I've turned off Audio Input. Media in source window stutters when the media is located on the NMVE SSD or the network storage drive we use (connected via Fibre).

 

The media is HD AVC-Intra 100 MXF media. The dropped frames does not appear to be an issue with ProRes 422 HQ media.

 

Device name WINDOWS-39PULTD
Processor AMD Ryzen Threadripper PRO 3975WX 32-Cores 3.50 GHz
Installed RAM 128 GB (128 GB usable)
Device ID 9CF40633-3C93-4C03-BCA2-C25532274E1A
Product ID 00330-54260-46439-AAOEM
System type 64-bit operating system, x64-based processor
Pen and touch No pen or touch input is available for this display

 

GPU RTX A5000

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4 replies

A
Andrew Hope
Participant
May 10, 2023

We ran into the same issue at work when we switched to the exact same PC Build.
After some investigation, and the tip in this thread to check if SMT was causing it, we discovered that any system we had which had over 32 logical processes (threads) would have issues playing back AVC-Intra media. The more discrete media files on the timeline in quick succession the worse it got.
By comparison an older low core/thread count CPU could playback the same sequence without a hitch.

 

My results for AVC-Intra 100 media timelines with a few clips
(no clip effects, just clips in a row on timeline):
Intel system 24 Cores 48 Threads - DROPPED FRAMES
AMD Threadripper 32 cores 64 Threads -  DROPPED FRAMES
AMD Ryzen 9 with 16 cores 32 threads - NORMAL PLAYBACK

Turn off Hyperthreading/SMT:
Intel system 24 Cores 24 Threads - NORMAL PLAYBACK
AMD Threadripper 32 cores 32 Threads -  NORMAL PLAYBACK

Of note: I had a meeting with the Adobe Enterprise customer service rep and demonstrated the problem. It's been put in front of the Adobe Engineers, but I'm not sure on when we will see a fix for this.

    A
    Andrew Hope
    Participant
    May 10, 2023

    BTW: I tested this on these versions of Premiere, which all exhibit this high thread count issue with AVC-Intra 100:
    23.3
    23.2
    23.1
    23.0


    And

    22.6.4
    22.6.3
    22.6.2
    22.2

    R Neil Haugen
    R Neil Haugen
    Legend
    April 27, 2022

    Which driver were you using?

     

    I've got a 3960X 24 core/128GB of RAM and 2080Ti. Another user with Xavc issues sent me a clip, was slick on my rig. So ... what is the issue here I wonder?

     

    Neil

    Everyone's mileage always varies ...
      michaelm11605974
      michaelm11605974Author
      Known Participant
      April 27, 2022

      Hi,

       

      512.59 - I've tried the driver below that with the same result. Premiere is very laggy - when I press play with AVC-Intra 100 it has to think about it for a second then plays. About every fourth or so clip loaded starts dropping frames from 2 frames all the way up to 30+ frames.

       

      The Ryzen 9 PC I also have with A5000 does not have this issue. Very Odd. 

      R Neil Haugen
      R Neil Haugen
      Legend
      April 27, 2022

      Truly. These things can be so frustrating.

       

      Neil

      Everyone's mileage always varies ...
      michaelm11605974
      michaelm11605974Author
      Known Participant
      April 27, 2022

      Hello Adobe? Any help?

      michaelm11605974
      michaelm11605974Author
      Known Participant
      April 13, 2022

      I'd also add AVC-Intra 100 is dropping frames in the program monitor/timeline playback.

      Kevin-Monahan
      Community Manager
      Kevin-MonahanCommunity Manager
      Community Manager
      April 14, 2022

      Hey Michael,

      Sorry. Can you check out the new version (22.3)? Check your Creative Cloud app for the new version. It should be there; if not, then soon. I hope that will work better for you. Let me know.

       

      Thanks,
      Kevin

      Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio
      michaelm11605974
      michaelm11605974Author
      Known Participant
      April 14, 2022

      Hi,

       

      Thanks for the response. I am currently running 22.3.0 build 121.

       

      I'd add that Davinci Resolve on the same system has no issues in terms of playing back any media I'm throwing at it.

       

      This would indicate it's not a hardware issue?

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