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2.7K Video Editing Settings

Satgreg -  
ziggourat Posted messages 24643 Registration date   Status Contributor Last intervention   -
Hello,

I do video editing with Shotcut
I handle 2.7k videos at 60 frames per second
When I preview on the timeline... sometimes it stutters

My config
Ryzen 5 2600
16GB of RAM
Geforce GTX 780 4GB

My question: what is the main component I could upgrade to have a smoother timeline visualization

Thank you for your help

4 answers

  1.
    glandu Posted messages 25506 Registration date   Status Contributor Last intervention   4 090
     
    Hello, UHD files are 4 times larger and the codec is hard to work with for native editing, even with a powerful computer.
    Stuttering in previews is therefore predictable and editing actions take longer.
    Without judging your computer (laptop or desktop, it's not the same processor), memory is fine, but an SSD hard drive is now essential, which you don't mention!!!
    Your software, which I don't know much about, may have functions in its settings for project parameters, export, and preview to optimize playback and hardware acceleration using CUDA or Intel.

    --
    "Donkeys change their minds, not fools."
    Remember to mark your message as "resolved" if that is the case.
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    1. Satgreg
       
      Good evening
      It's a whole
      Yes, I have an SSD hard drive
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  2. Tim_h_h Posted messages 115 Status Member 12
     
    Hello,
    SSD to be provided if there isn't one
    And the GPU
    Best regards
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    1. Satgreg
       
      Hello. Yes, I have an SSD on it.
      Do you think it's better to change the graphics card first?
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      1. glandu Posted messages 25506 Registration date   Status Contributor Last intervention   4 090 > Satgreg
         
        Hello, the graphics card plays a relative role; before incurring expenses, I would test a more advanced software like Da Vinci Resolve with a more powerful engine to optimize your display with the same graphics card, which is far from entry-level.
        I was wondering if we're talking about a laptop or a desktop?
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      2. Satgreg > glandu Posted messages 25506 Registration date   Status Contributor Last intervention  
         
        Thank you for your response
        I am just starting out in video and I started with Shotcut as software because it is quite simple and free for me
        I have a tower...
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      3. glandu Posted messages 25506 Registration date   Status Contributor Last intervention   4 090 > Satgreg
         
        I understand well, but I fear that their "engine might be a bit tight your SSD what is its capacity because it is agreed to put the software capture the project on the SSD.
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  3. berduide
     
    Hello,
    maybe you can reduce the preview rendering.
    I know that Premiere Pro does it.

    An identical topic in French:
    https://forum.shotcut.org/t/how-to-reduce-preview-lag/1252
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  4. ziggourat Posted messages 24643 Registration date   Status Contributor Last intervention   5 340
     
    Hello,

    I only have a GTX 1050 2GB, and during simple preview with a UHD file (AVC) with a video bitrate of 40 Mbps at 29.97 FPS or one at 12 Mbps and 60 FPS, I don't encounter any particular problems viewing the files in ShotCut.

    Since the GTX 780 is superior to my GPU and ShotCut tends to use the CPU more than the GPU, it’s probably the project that is a bit too complex for the software to handle (total duration, number of clips, number of effects and filters, number of transitions very/too many... all of that in UHD at 60 FPS requires computational power)...
    This is of course just a hypothesis...

    Also check which display library is used by Shotcut (I don’t know if it has any relation or not): Settings --> Display Mode, which is either OpenGL, DirectX, or Automatic. I have DirectX even though OpenGL is recommended, I believe.
    See "How does Shotcut use (or not use) the GPU?" (in English): https://shotcut.org/FAQ/#how-does-shotcut-use-the-gpu-or-not

    Finally, you have the "proxy" method to work on your project, which you will export later with the desired configuration: https://forum.shotcut.org/t/how-to-proxy-edit-with-shotcut/1003
    Seen from the topic previously mentioned by glandu ;-)

    Best regards
    --
    Long live Bobo! ~ Little fish will become big ~
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    1. Satgreg
       
      Thank you for your reply... what processor do you have? And what about RAM?
      Thank you
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      1. ziggourat Posted messages 24643 Registration date   Status Contributor Last intervention   5 340 > Satgreg
         
        Ryzen7 1700X and 16 GB of RAM.
        I complete my answer: with my two files, I added 2/3 filters. I cropped one and set the other in PiP, and indeed, even on a 1-minute project, it seems to lag much more in the preview.
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