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  1. Qt
  2. QTBUG-97789

Listening on QVideoSink::videoFrameChanged on Android fails to map/unmap QVideoFrame

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Details

    • Android
    • c7f51ee983 (qt/qtmultimedia/6.4) c7f51ee983 (qt/tqtc-qtmultimedia/6.4) c7f51ee983 (qt/qtmultimedia/6.4.1)
    • 2022wk38FOQtforAndroid

    Description

      Attached is a sample project that creates a C++ side QML object VideoSinkListener that attaches itselt to VideoOutput.videoSink.videoFrameChanged(). Works correctly on Windows but fails on Android with the following error:

      F libvideosink-test_arm64-v8a.so: Cannot make QOpenGLContext current in a different thread
F libc    : Fatal signal 6 (SIGABRT), code -6 in tid 28846 (qtMainLoopThrea)

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          is covered by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-105169 videoFrame.toImage() does not work in a different thread than the video rendering thread

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-113327 QVideoFrame::map() segfaults on 32bit android

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-97789
          # Subject Branch Project Status CR V
          434075,4 Run Android video output from a dedicated thread and shared OpenGL ctx 6.4 qt/qtmultimedia Status: MERGED +2 0

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              bartlomiejmoskal Bartlomiej Moskal
              kiibimees Lauri Laanmets
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                Updated:
                Resolved:

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