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  1. Qt
  2. QTBUG-95234

MingW build does not find WMF, and builds without a valid backend

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 6.2.1, 6.3.0 Alpha, 6.2
    • 6.2.0 Beta1
    • Multimedia
    • None
    • Windows
    • a199c508b82644fddfbf9a2b3c7e03433e81bc5d (qt/qtmultimedia/dev) 0b34747ceb7502393c8a39134c9463664dc326a7 (qt/qtmultimedia/6.2)

    Description

      My guess is that the downloadable mingw build from the qt installer is not build with the qt feature wmf.

      Thus the creation of the platform integration in qplatformmediaintegration.cpp defaults to the QDummyIntegration implementation.
      Since those functions returns nullptr for devices() any Qt-Multimedia example/application compiled with mingw crashes when trying to create an audio device.

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-95233 Windows mingw version asserts during acces to QMediaDevices

          • 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-95802 QAudioOutput crashes app when its constructor is called

          • 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
          For Gerrit Dashboard: QTBUG-95234
          # Subject Branch Project Status CR V
          371022,4 Fail early on unsupported platform/compiler dev qt/qtmultimedia Status: MERGED +2 0
          371441,2 Fail early on unsupported platform/compiler 6.2 qt/qtmultimedia Status: MERGED +2 0
          371443,2 Fail early on unsupported platform/compiler 6.2.0 qt/qtmultimedia Status: MERGED +2 0
          372943,2 Add support for building WMF backend with MinGW 9.0.0 dev qt/qtmultimedia Status: MERGED +2 0
          373133,2 Add support for building WMF backend with MinGW 9.0.0 6.2 qt/qtmultimedia Status: MERGED +2 0

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              anrocha André De La Rocha (Inactive)
              robosturm Tilman Sandhoff
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              Dates

                Created:
                Updated:
                Resolved:

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