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  1. Qt
  2. QTBUG-100363

[REG 6.2.2 - 6.2.3] Video is always black with OpenGL RHI

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 6.3.0 Beta2, 6.4.0 Beta1
    • 6.2.3
    • Multimedia
    • None
    • Windows 10
    • Windows
    • 8afe5d160c (qt/qtmultimedia/dev) 02e96fca6c (qt/qtmultimedia/6.3) eb47e12fd8 (qt/qtmultimedia/6.2) 1f9c392668 (qt/qtmultimedia/dev) dc879d2ad2 (qt/qtmultimedia/6.3) 14758a8ea3 (qt/qtmultimedia/6.2) 14758a8ea3 (qt/qtmultimedia/6.2.4)

    Description

      There is a regression from Qt 6.2.2 - video is not rendered at all (always black frames) when OpenGL RHI backend is used. 

          QQuickWindow::setGraphicsApi(QSGRendererInterface::OpenGL);

      Most probably caused by https://codereview.qt-project.org/c/qt/qtmultimedia/+/383609.

      There are also runtime warnings during video playback

      Could not register D3D9 texture in OpenGL
Texture from QVideoFrame is 0, this cannot be right
Failed to initialize QRhiTexture wrapper for native texture object 0
Could not register D3D9 texture in OpenGL
Texture from QVideoFrame is 0, this cannot be right
Failed to initialize QRhiTexture wrapper for native texture object 0
Could not register D3D9 texture in OpenGL
Texture from QVideoFrame is 0, this cannot be right
Failed to initialize QRhiTexture wrapper for native texture object 0
...

      This is critical for apps that use QtWebEngineQuick because it hardcodes QSGRendererInterface::OpenGL internally.

      Attachments

        1. untitled.zip
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        2. qtdiag.log
          9 kB
        3. image-2022-02-01-11-21-35-436.png
          image-2022-02-01-11-21-35-436.png
          5 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-100341 [REG 6.2.2 - 6.2.3] Memory leak on MediaPlayer destruction

          • 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.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-100665 Crash in OpenGlVideoBuffer destructor

          • 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.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-102707 Several videos can't be played simultaneously with OpenGL RHI

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Activity

            People

              piotr Piotr Srebrny (Inactive)
              studiosus Vladimir Belyavsky
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              Dates

                Created:
                Updated:
                Resolved: