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  1. Qt
  2. QTBUG-108427

Hardware accelerated video decoding on Windows

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Details

    • Windows
    • 45be9f75b (dev), c7944d650 (6.5), 44893dda4 (6.6)

    Description

      It seems that Qt Multimedia is not able to use hardware acceleration with AV1 or HEVC video. With following extension, Windows Media Player can do it, but Qt Multimedia seems to use CPU only on the same system.

      https://apps.microsoft.com/store/detail/av1-video-extension/9MVZQVXJBQ9V?hl=en-us&gl=us

      Can be reproduced with media player example playing some AV1 file and looking at CPU/GPU usages.

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        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-113559 QML media player example crashes because of the combination FFMPEG + D3D11 (AMD)

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
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              padubsky Pavel Dubsky
              poikelin Joni Poikelin
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              Dates

                Created:
                Updated:
                Resolved:

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