Details
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Bug
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Resolution: Fixed
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P1: Critical
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6.8.0 Beta2
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None
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MacBook Pro M3
MacOS 14.6
QT_MEDIA_BACKEND=darwin
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macOS
Description
The MediaPlayer example in the Multimedia module crashes during startup when forcing it to use the Darwin backend. It does not happen when using the Ffmpeg backend.
This happens on a MacBook Pro M3 (ARM), running MacOS 14.6.
The Darwin backend is forced on with the system variable QT_MEDIA_BACKEND=darwin.
Steps to reproduce:
Run the MediaPlayer example in Qt Creator, while force-setting the media backend to Darwin
Expected behavior:
MediaPlayer example starts up successfully, without crashing. (Same behavior as Ffmpeg).
Stack trace:
1 QExplicitlySharedDataPointer<QVideoFrameFormatPrivate>::QExplicitlySharedDataPointer(QExplicitlySharedDataPointer<QVideoFrameFormatPrivate> const&) qshareddata.h 158 0x1006b421c 2 QExplicitlySharedDataPointer<QVideoFrameFormatPrivate>::QExplicitlySharedDataPointer(QExplicitlySharedDataPointer<QVideoFrameFormatPrivate> const&) qshareddata.h 159 0x1006b421c 3 QVideoFrameFormat::QVideoFrameFormat(QVideoFrameFormat const&) qvideoframeformat.cpp 368 0x1006b421c 4 QVideoFrameFormat::QVideoFrameFormat(QVideoFrameFormat const&) qvideoframeformat.cpp 368 0x1006b421c 5 AVFVideoBuffer::videoFormat() const avfvideobuffer_p.h 44 0x1013487b4 6 AVFVideoRendererControl::updateVideoFrame(CVTimeStamp const&) avfvideorenderercontrol.mm 157 0x1013487a8 7 void doActivate<false>(QObject *, int, void * *) qobject.cpp 4125 0x1034dda7c 8 AVFDisplayLink::tick(CVTimeStamp const&) moc_avfdisplaylink_p.cpp 158 0x10133dec0 9 AVFDisplayLink::event(QEvent *) avfdisplaylink.mm 196 0x10133dea4 10 QCoreApplicationPrivate::notify_helper(QObject *, QEvent *) qcoreapplication.cpp 1328 0x10348d5b0 11 QCoreApplication::notifyInternal2(QObject *, QEvent *) qcoreapplication.cpp 1154 0x10348cff4 12 QCoreApplication::sendEvent(QObject *, QEvent *) qcoreapplication.cpp 1598 0x10348e9ac 13 QCoreApplicationPrivate::sendPostedEvents(QObject *, int, QThreadData *) qcoreapplication.cpp 1954 0x10348e99c 14 QCocoaEventDispatcherPrivate::processPostedEvents() qcocoaeventdispatcher.mm 901 0x1004ff5d4 15 QCocoaEventDispatcherPrivate::postedEventsSourceCallback(void *) qcocoaeventdispatcher.mm 923 0x100500748 16 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x1889b54d8 17 __CFRunLoopDoSource0 (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x1889b546c 18 __CFRunLoopDoSources0 (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x1889b51dc 19 __CFRunLoopRun (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x1889b3dc8 20 CFRunLoopRunSpecific (arm64e) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x1889b3434 21 RunCurrentEventLoopInMode (arm64e) /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox 0x19315d19c 22 ReceiveNextEventCommon (arm64e) /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox 0x19315cfd8 23 _BlockUntilNextEventMatchingListInModeWithFilter (arm64e) /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox 0x19315cd30 24 _DPSNextEvent (arm64e) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit 0x18c212cc8 25 -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] (arm64e) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit 0x18ca094d0 26 -[NSApplication run] (arm64e) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit 0x18c205ffc 27 QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) qcocoaeventdispatcher.mm 407 0x1004fe10c 28 QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) qeventloop.cpp 100 0x1034981dc 29 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) qeventloop.cpp 191 0x1034981b8 30 QCoreApplication::exec() qcoreapplication.cpp 1499 0x10348d818 31 main main.cpp 89 0x10000a278 32 start (arm64e) /usr/lib/dyld 0x18854b154
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