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  1. Qt
  2. QTBUG-135598

[Windows] Sporadic crashes when call QVideoFrame::toImage() from working thread

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Details

    • Bug
    • Resolution: Unresolved
    • P1: Critical
    • None
    • 6.7.3
    • Multimedia
    • None
    • Windows

    Description

      Found these crashes in our automated tracking system

      Access violation reading location 0x0000000000000030.

      Call stack:

      >	Qt6Core.dll!QRect::QRect(const QPoint & atopLeft, const QSize & asize) Line 161	C++
 	qwindows.dll!QWindowsWindow::initialize() Line 1559	C++
 	Qt6Gui.dll!QWindowPrivate::create(bool recursive) Line 568	C++
 	Qt6Gui.dll!QOffscreenSurface::create() Line 140	C++
 	Qt6Gui.dll!QRhiGles2InitParams::newFallbackSurface(const QSurfaceFormat & format) Line 570	C++
 	Qt6Multimedia.dll!initializeRHI(QRhi * videoFrameRhi) Line 168	C++
 	Qt6Multimedia.dll!qImageFromVideoFrame(const QVideoFrame & frame, QtVideo::Rotation rotation, bool mirrorX, bool mirrorY, bool forceCpu) Line 323	C++
 	Qt6Multimedia.dll!QVideoFrame::toImage() Line 686	C++
...
 	Qt6Core.dll!QThreadPoolThread::run() Line 68	C++
 	Qt6Core.dll!QThreadPrivate::start(void * arg) Line 290	C++
 	[External Code]

      Attachments

        Issue Links

          is cloned by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-135618 [MacOS] Sporadic crashes when call QVideoFrame::toImage()

          • 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.
          • Reported
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-131107 QVideoFrame::toImage / qImageFromVideoFrame not safe to call from worker thread

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported
          For Gerrit Dashboard: QTBUG-135598
          # Subject Branch Project Status CR V
          636409,6 Don't create thread-local OpenGL RHI in the worker thread dev qt/qtmultimedia Status: NEW +1 0
          637323,1 QRhiGles2InitParams: warn of newFallbackSurface precondition violation dev qt/qtbase Status: NEW +2 0
          637324,1 Harden QRhiGles2InitParams::newFallbackSurface dev qt/qtmultimedia Status: NEW +1 0

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              timblechmann tim blechmann
              studiosus Vladimir Belyavsky
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              Dates

                Created:
                Updated: