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VideoOutput: poor downscaling quality

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  • K Offline
    K Offline
    Kai Nickel
    wrote last edited by
    #1

    I noticed poor downscaling quality in VideoOutput when displaying 4K video (pixelated edges).

    I tried the following flags on the VideoItem, none of them had any visual effect:

    smooth: true
    
    antialiasing: true
    
    layer.enabled: true
    layer.smooth: true
    layer.samples: 8
    

    This is Qt 6.8 on Ubuntu Linux.

    Any ideas?

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    • GrecKoG Offline
      GrecKoG Offline
      GrecKo
      Qt Champions 2018
      wrote last edited by
      #2

      layer.mipmap: true? with or without layer.smooth

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      • K Offline
        K Offline
        Kai Nickel
        wrote last edited by
        #3

        Thank you, I just tried this:

        layer.enabled: true
        layer.smooth: true // tried both true and false here
        layer.mipmap: true
        

        No visual changes, unfortunately.

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