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  1. Qt
  2. QTBUG-132548

QML camera throws errors and freezes UI on iOS

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Details

    • Bug
    • Resolution: Unresolved
    • P3: Somewhat important
    • None
    • 6.8.1
    • Multimedia
    • None
    • iOS/tvOS/watchOS

    Description

      Creating a QML Camera component throws errors and causes UI freeze for multiple seconds. This can be reproduced with the Qt example "declarative-camera".

      In this case the FFmpeg backend has been used.

      Setup:

      • Qt 6.8.1
      • XCode 16.2.0
      • iPhone X / iOS 16.7

      Log:

      Thread Performance Checker: -[AVCaptureSession startRunning] should be called from background thread. Calling it on the main thread can lead to UI unresponsiveness
PID: 746, TID: 65684
Backtrace
=================================================================
3   declarative-camera                  0x00000001061beec0 _ZN10QAVFCamera15onActiveChangedEb + 108
4   declarative-camera                  0x00000001060af3d8 _ZN14QAVFCameraBase9setActiveEb + 168
5   declarative-camera                  0x0000000104e3371c _ZN7QCamera9setActiveEb + 100
6   declarative-camera                  0x0000000104e376fc _ZN7QCamera5startEv + 32
7   declarative-camera                  0x0000000104e356a0 _ZN7QCamera18qt_static_metacallEP7QObjectN11QMetaObject4CallEiPPv + 1004
8   declarative-camera                  0x0000000104e378e8 _ZN7QCamera11qt_metacallEN11QMetaObject4CallEiPPv + 164
9   declarative-camera                  0x00000001041907b0 _ZN11QMetaObject8metacallEP7QObjectNS_4CallEiPPv + 140
10  declarative-camera                  0x00000001054670d4 _ZNK18QQmlObjectOrGadget8metacallEN11QMetaObject4CallEiPPv + 152
11  declarative-camera                  0x00000001051b2970 _ZN3QV4L10CallMethodERK18QQmlObjectOrGadgeti9QMetaTypeiPKS3_PNS_15ExecutionEngineEPNS_8CallDataEN11QMetaObject4CallE + 1892
12  declarative-camera                  0x00000001051b1900 _ZN3QV413QObjectMethod11callPreciseERK18QQmlObjectOrGadgetRK16QQmlPropertyDataPNS_15ExecutionEngineEPNS_8CallDataEN11QMetaObject4CallE + 1160
13  declarative-camera                  0x0000000105205758 _ZZNK3QV413QObjectMethod12callInternalEPKNS_5ValueES3_iENK3$_7clEv + 56
14  declarative-camera                  0x00000001051b7680 _ZZNK3QV413QObjectMethod12callInternalEPKNS_5ValueES3_iENK3$_5clIZNKS0_12callInternalES3_S3_iE3$_7EEDaRKT_ + 232
15  declarative-camera                  0x00000001051b6b38 _ZNK3QV413QObjectMethod12callInternalEPKNS_5ValueES3_i + 1756
16  declarative-camera                  0x00000001051b6450 _ZN3QV413QObjectMethod11virtualCallEPKNS_14FunctionObjectEPKNS_5ValueES6_i + 64
17  declarative-camera                  0x000000010506f30c _ZNK3QV414FunctionObject4callEPKNS_5ValueES3_i + 100
18  declarative-camera                  0x000000010529b6b4 _ZN3QV44Moth3VME9interpretEPNS_17JSTypesStackFrameEPNS_15ExecutionEngineEPKc + 16524
19  declarative-camera                  0x000000010529759c _ZN3QV44Moth3VME4execEPNS_17JSTypesStackFrameEPNS_15ExecutionEngineE + 368
20  declarative-camera                  0x0000000105128708 _ZN3QV4L6doCallEPNS_8FunctionEPKNS_5ValueES4_iPNS_16ExecutionContextE + 296
21  declarative-camera                  0x0000000105127c8c _ZN3QV48Function4callEPKNS_5ValueES3_iPNS_16ExecutionContextE + 252
22  declarative-camera                  0x00000001053d5eec _ZN24QQmlJavaScriptExpression8evaluateEPN3QV48CallDataEPb + 564
23  declarative-camera                  0x00000001053d5c68 _ZN24QQmlJavaScriptExpression8evaluateEPb + 248
24  declarative-camera                  0x000000010538ca44 _ZN21QQmlExpressionPrivate7v4valueEPb + 240
25  declarative-camera                  0x000000010538cbd4 _ZN21QQmlExpressionPrivate5valueEPb + 332
26  declarative-camera                  0x000000010538cd14 _ZN14QQmlExpression8evaluateEPb + 64
27  declarative-camera                  0x0000000105bd7650 _ZN23QQuickStateChangeScript7executeEv + 148
28  declarative-camera                  0x0000000105c08be8 _ZN23QQuickTransitionManager10transitionERK5QListI17QQuickStateActionEP16QQuickTransitionP7QObject + 2156
29  declarative-camera                  0x0000000105bc53f4 _ZN11QQuickState5applyEP16QQuickTransitionPS_ + 3636
30  declarative-camera                  0x0000000105bd91b8 _ZN23QQuickStateGroupPrivate23setCurrentStateInternalERK7QStringb + 1592
31  declarative-camera                  0x0000000105bd9d58 _ZN16QQuickStateGroup17componentCompleteEv + 688
32  declarative-camera                  0x00000001058064b0 _ZN10QQuickItem17componentCompleteEv + 120
33  declarative-camera                  0x0000000105441828 _ZN17QQmlObjectCreator8finalizeER26QQmlInstantiationInterrupt + 1780
34  declarative-camera                  0x000000010533e0b0 _ZN20QQmlComponentPrivate8completeEP17QQmlEnginePrivatePNS_17ConstructionStateE + 104
35  declarative-camera                  0x000000010533bfec _ZN20QQmlComponentPrivate14completeCreateEv + 612
36  declarative-camera                  0x000000010534055c _ZN13QQmlComponent14completeCreateEv + 44
37  declarative-camera                  0x000000010533dea0 _ZN20QQmlComponentPrivate20createWithPropertiesEP7QObjectRK4QMapI7QString8QVariantEP11QQmlContextNS_14CreateBehaviorEb + 464
38  declarative-camera                  0x000000010533dc8c _ZN13QQmlComponent6createEP11QQmlContext + 112
39  declarative-camera                  0x000000010594406c _ZN10QQuickView15continueExecuteEv + 588
40  declarative-camera                  0x0000000105943d8c _ZN17QQuickViewPrivate7executeEv + 188
41  declarative-camera                  0x00000001059446e0 _ZN10QQuickView9setSourceERK4QUrl + 64
42  declarative-camera                  0x000000010405496c _ZZ4mainENK3$_1clERK4QUrl + 140
43  declarative-camera                  0x0000000104054868 _ZZ4mainENK3$_0clERK11QPermission + 256
44  declarative-camera                  0x000000010405475c _ZZN9QtPrivate11FunctorCallINS_11IndexesListIJLi0EEEENS_4ListIJ11QPermissionEEEvZ4mainE3$_0E4callERS6_PPvENKUlvE_clEv + 40
45  declarative-camera                  0x0000000104054728 _ZN9QtPrivate15FunctorCallBase13call_internalIvZNS_11FunctorCallINS_11IndexesListIJLi0EEEENS_4ListIJ11QPermissionEEEvZ4mainE3$_0E4callERS8_PPvEUlvE_EEvSC_OT0_ + 28
46  declarative-camera                  0x0000000104054700 _ZN9QtPrivate11FunctorCallINS_11IndexesListIJLi0EEEENS_4ListIJ11QPermissionEEEvZ4mainE3$_0E4callERS6_PPv + 48
47  declarative-camera                  0x0000000104054684 _ZN9QtPrivate15FunctorCallableIZ4mainE3$_0J11QPermissionEE4callINS_4ListIJS2_EEEvEEvRS1_PvPS8_ + 36
48  declarative-camera                  0x000000010405460c _ZN9QtPrivate15QCallableObjectIZ4mainE3$_0NS_4ListIJ11QPermissionEEEvE4implEiPNS_15QSlotObjectBaseEP7QObjectPPvPb + 168
49  declarative-camera                  0x0000000104184ff0 _ZN9QtPrivate15QSlotObjectBase4callEP7QObjectPPv + 52
50  declarative-camera                  0x0000000104184254 _ZZN16QCoreApplication17requestPermissionERK11QPermissionPN9QtPrivate15QSlotObjectBaseEPK7QObjectEN18PermissionReceiver25finalizePermissionRequestES2_ + 196
51  declarative-camera                  0x0000000104184f50 _ZZN9QtPrivate11FunctorCallINS_11IndexesListIJLi0EEEENS_4ListIJR11QPermissionEEEvMZN16QCoreApplication17requestPermissionERKS4_PNS_15QSlotObjectBaseEPK7QObjectE18PermissionReceiverFvS9_EE4callESH_PSF_PPvENKUlvE_clEv + 136
52  declarative-camera                  0x0000000104184e50 _ZN9QtPrivate15FunctorCallBase13call_internalIvZNS_11FunctorCallINS_11IndexesListIJLi0EEEENS_4ListIJR11QPermissionEEEvMZN16QCoreApplication17requestPermissionERKS6_PNS_15QSlotObjectBaseEPK7QObjectE18PermissionReceiverFvSB_EE4callESJ_PSH_PPvEUlvE_EEvSN_OT0_ + 28
53  declarative-camera                  0x0000000104184d40 _ZN9QtPrivate11FunctorCallINS_11IndexesListIJLi0EEEENS_4ListIJR11QPermissionEEEvMZN16QCoreApplication17requestPermissionERKS4_PNS_15QSlotObjectBaseEPK7QObjectE18PermissionReceiverFvS9_EE4callESH_PSF_PPv + 128
54  declarative-camera                  0x0000000104184c74 _ZN9QtPrivate15FunctionPointerIMZN16QCoreApplication17requestPermissionERK11QPermissionPNS_15QSlotObjectBaseEPK7QObjectE18PermissionReceiverFvS4_EE4callINS_4ListIJRS2_EEEvEEvSC_PSA_PPv + 80
55  declarative-camera                  0x0000000104184b64 _ZN9QtPrivate15QCallableObjectIMZN16QCoreApplication17requestPermissionERK11QPermissionPNS_15QSlotObjectBaseEPK7QObjectE18PermissionReceiverFvS4_ENS_4ListIJRS2_EEEvE4implEiS6_PS7_PPvPb + 196
56  declarative-camera                  0x0000000104184ff0 _ZN9QtPrivate15QSlotObjectBase4callEP7QObjectPPv + 52
57  declarative-camera                  0x000000010421e29c _ZN14QMetaCallEvent13placeMetaCallEP7QObject + 72
58  declarative-camera                  0x0000000104220eb8 _ZN7QObject5eventEP6QEvent + 836
59  declarative-camera                  0x000000010416cb68 _ZN23QCoreApplicationPrivate13notify_helperEP7QObjectP6QEvent + 248
60  declarative-camera                  0x000000010416c434 _ZL8doNotifyP7QObjectP6QEvent + 220
61  declarative-camera                  0x000000010416c538 _ZN16QCoreApplication6notifyEP7QObjectP6QEvent + 168
62  declarative-camera                  0x000000010470be40 _ZN15QGuiApplication6notifyEP7QObjectP6QEvent + 192
63  declarative-camera                  0x000000010416c2e0 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent + 400
64  declarative-camera                  0x000000010416d4a4 _ZN16QCoreApplication9sendEventEP7QObjectP6QEvent + 152
65  declarative-camera                  0x000000010416f1cc _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData + 3792
66  declarative-camera                  0x000000010416d1b8 _ZN16QCoreApplication16sendPostedEventsEP7QObjecti + 60
67  declarative-camera                  0x00000001044681bc _ZN30QEventDispatcherCoreFoundation19processPostedEventsEv + 852
68  declarative-camera                  0x0000000105f0f7d0 _ZN19QIOSEventDispatcher19processPostedEventsEv + 56
69  declarative-camera                  0x000000010446e27c _ZN13RunLoopSourceI30QEventDispatcherCoreFoundationE7processEPv + 128
70  CoreFoundation                      0x000000019632d0e8 55B9BA28-4C5C-3FE7-9C47-4983337D6E83 + 823528
71  CoreFoundation                      0x0000000196338d5c 55B9BA28-4C5C-3FE7-9C47-4983337D6E83 + 871772
72  CoreFoundation                      0x00000001962c3fc4 55B9BA28-4C5C-3FE7-9C47-4983337D6E83 + 393156
73  CoreFoundation                      0x00000001962d9138 55B9BA28-4C5C-3FE7-9C47-4983337D6E83 + 479544
74  CoreFoundation                      0x00000001962ddd20 CFRunLoopRunSpecific + 584
75  GraphicsServices                    0x00000001ce3ad998 GSEventRunModal + 160
76  UIKitCore                           0x000000019857034c 1242978A-2C2C-3781-8D6C-9777EDCE2804 + 3609420
77  UIKitCore                           0x000000019856ffc4 UIApplicationMain + 312
78  declarative-camera                  0x0000000105f0dba0 qt_main_wrapper + 972
79  dyld                                0x00000001b3a9c344 199941A5-95EE-3054-8E54-AE6387A9FA9A + 82756
2025-01-03 16:50:16.482892+0100 declarative-camera[746:65941] fopen failed for data file: errno = 2 (No such file or directory)
2025-01-03 16:50:16.482935+0100 declarative-camera[746:65941] Errors found! Invalidating cache...
2025-01-03 16:50:16.832293+0100 declarative-camera[746:65941] fopen failed for data file: errno = 2 (No such file or directory)
2025-01-03 16:50:16.832368+0100 declarative-camera[746:65941] Errors found! Invalidating cache...
=================================================================
Main Thread Checker: UI API called on a background thread: -[UIView window]
PID: 746, TID: 65941, Thread name: QSGRenderThread, Queue name: com.apple.root.default-qos.overcommit, QoS: 0
Backtrace:
4   declarative-camera                  0x0000000104d89d5c _ZN15QMetalSwapChain7hdrInfoEv + 180
5   declarative-camera                  0x00000001062f8058 _ZN17QQuickVideoOutput9updateHdrEP12QSGVideoNode + 324
6   declarative-camera                  0x00000001062f7d04 _ZN17QQuickVideoOutput15updatePaintNodeEP7QSGNodePN10QQuickItem19UpdatePaintNodeDataE + 1032
7   declarative-camera                  0x00000001059529d8 _ZN19QQuickWindowPrivate15updateDirtyNodeEP10QQuickItem + 3812
8   declarative-camera                  0x000000010594a778 _ZN19QQuickWindowPrivate16updateDirtyNodesEv + 640
9   declarative-camera                  0x000000010594a2a0 _ZN19QQuickWindowPrivate14syncSceneGraphEv + 612
10  declarative-camera                  0x0000000105d89854 _ZN15QSGRenderThread4syncEb + 532
11  declarative-camera                  0x0000000105d8a85c _ZN15QSGRenderThread13syncAndRenderEv + 2944
12  declarative-camera                  0x0000000105d8bf78 _ZN15QSGRenderThread3runEv + 364
13  declarative-camera                  0x0000000104487ae0 _ZZN14QThreadPrivate5startEPvENK3$_1clEv + 732
14  declarative-camera                  0x0000000104486184 _ZN12_GLOBAL__N_122terminate_on_exceptionIZN14QThreadPrivate5startEPvE3$_1EEvOT_ + 24
15  declarative-camera                  0x0000000104486108 _ZN14QThreadPrivate5startEPv + 224
16  libsystem_pthread.dylib             0x00000001e10140ec _pthread_start + 116
17  libsystem_pthread.dylib             0x00000001e101272c thread_start + 8
2025-01-03 16:50:17.222700+0100 declarative-camera[746:65941] [reports] Main Thread Checker: UI API called on a background thread: -[UIView window]
PID: 746, TID: 65941, Thread name: QSGRenderThread, Queue name: com.apple.root.default-qos.overcommit, QoS: 0
Backtrace:
4   declarative-camera                  0x0000000104d89d5c _ZN15QMetalSwapChain7hdrInfoEv + 180
5   declarative-camera                  0x00000001062f8058 _ZN17QQuickVideoOutput9updateHdrEP12QSGVideoNode + 324
6   declarative-camera                  0x00000001062f7d04 _ZN17QQuickVideoOutput15updatePaintNodeEP7QSGNodePN10QQuickItem19UpdatePaintNodeDataE + 1032
7   declarative-camera                  0x00000001059529d8 _ZN19QQuickWindowPrivate15updateDirtyNodeEP10QQuickItem + 3812
8   declarative-camera                  0x000000010594a778 _ZN19QQuickWindowPrivate16updateDirtyNodesEv + 640
9   declarative-camera                  0x000000010594a2a0 _ZN19QQuickWindowPrivate14syncSceneGraphEv + 612
10  declarative-camera                  0x0000000105d89854 _ZN15QSGRenderThread4syncEb + 532
11  declarative-camera                  0x0000000105d8a85c _ZN15QSGRenderThread13syncAndRenderEv + 2944
12  declarative-camera                  0x0000000105d8bf78 _ZN15QSGRenderThread3runEv + 364
13  declarative-camera                  0x0000000104487ae0 _ZZN14QThreadPrivate5startEPvENK3$_1clEv + 732
14  declarative-camera                  0x0000000104486184 _ZN12_GLOBAL__N_122terminate_on_exceptionIZN14QThreadPrivate5startEPvE3$_1EEvOT_ + 24
15  declarative-camera                  0x0000000104486108 _ZN14QThreadPrivate5startEPv + 224
16  libsystem_pthread.dylib             0x00000001e10140ec _pthread_start + 116
17  libsystem_pthread.dylib             0x00000001e101272c thread_start + 8
=================================================================
Main Thread Checker: UI API called on a background thread: -[UIWindow windowScene]
PID: 746, TID: 65941, Thread name: QSGRenderThread, Queue name: com.apple.root.default-qos.overcommit, QoS: 0
Backtrace:
4   declarative-camera                  0x0000000104d89d6c _ZN15QMetalSwapChain7hdrInfoEv + 196
5   declarative-camera                  0x00000001062f8058 _ZN17QQuickVideoOutput9updateHdrEP12QSGVideoNode + 324
6   declarative-camera                  0x00000001062f7d04 _ZN17QQuickVideoOutput15updatePaintNodeEP7QSGNodePN10QQuickItem19UpdatePaintNodeDataE + 1032
7   declarative-camera                  0x00000001059529d8 _ZN19QQuickWindowPrivate15updateDirtyNodeEP10QQuickItem + 3812
8   declarative-camera                  0x000000010594a778 _ZN19QQuickWindowPrivate16updateDirtyNodesEv + 640
9   declarative-camera                  0x000000010594a2a0 _ZN19QQuickWindowPrivate14syncSceneGraphEv + 612
10  declarative-camera                  0x0000000105d89854 _ZN15QSGRenderThread4syncEb + 532
11  declarative-camera                  0x0000000105d8a85c _ZN15QSGRenderThread13syncAndRenderEv + 2944
12  declarative-camera                  0x0000000105d8bf78 _ZN15QSGRenderThread3runEv + 364
13  declarative-camera                  0x0000000104487ae0 _ZZN14QThreadPrivate5startEPvENK3$_1clEv + 732
14  declarative-camera                  0x0000000104486184 _ZN12_GLOBAL__N_122terminate_on_exceptionIZN14QThreadPrivate5startEPvE3$_1EEvOT_ + 24
15  declarative-camera                  0x0000000104486108 _ZN14QThreadPrivate5startEPv + 224
16  libsystem_pthread.dylib             0x00000001e10140ec _pthread_start + 116
17  libsystem_pthread.dylib             0x00000001e101272c thread_start + 8
2025-01-03 16:50:22.335506+0100 declarative-camera[746:65941] [reports] Main Thread Checker: UI API called on a background thread: -[UIWindow windowScene]
PID: 746, TID: 65941, Thread name: QSGRenderThread, Queue name: com.apple.root.default-qos.overcommit, QoS: 0
Backtrace:
4   declarative-camera                  0x0000000104d89d6c _ZN15QMetalSwapChain7hdrInfoEv + 196
5   declarative-camera                  0x00000001062f8058 _ZN17QQuickVideoOutput9updateHdrEP12QSGVideoNode + 324
6   declarative-camera                  0x00000001062f7d04 _ZN17QQuickVideoOutput15updatePaintNodeEP7QSGNodePN10QQuickItem19UpdatePaintNodeDataE + 1032
7   declarative-camera                  0x00000001059529d8 _ZN19QQuickWindowPrivate15updateDirtyNodeEP10QQuickItem + 3812
8   declarative-camera                  0x000000010594a778 _ZN19QQuickWindowPrivate16updateDirtyNodesEv + 640
9   declarative-camera                  0x000000010594a2a0 _ZN19QQuickWindowPrivate14syncSceneGraphEv + 612
10  declarative-camera                  0x0000000105d89854 _ZN15QSGRenderThread4syncEb + 532
11  declarative-camera                  0x0000000105d8a85c _ZN15QSGRenderThread13syncAndRenderEv + 2944
12  declarative-camera                  0x0000000105d8bf78 _ZN15QSGRenderThread3runEv + 364
13  declarative-camera                  0x0000000104487ae0 _ZZN14QThreadPrivate5startEPvENK3$_1clEv + 732
14  declarative-camera                  0x0000000104486184 _ZN12_GLOBAL__N_122terminate_on_exceptionIZN14QThreadPrivate5startEPvE3$_1EEvOT_ + 24
15  declarative-camera                  0x0000000104486108 _ZN14QThreadPrivate5startEPv + 224
16  libsystem_pthread.dylib             0x00000001e10140ec _pthread_start + 116
17  libsystem_pthread.dylib             0x00000001e101272c thread_start + 8
=================================================================
Main Thread Checker: UI API called on a background thread: -[UIWindowScene screen]
PID: 746, TID: 65941, Thread name: QSGRenderThread, Queue name: com.apple.root.default-qos.overcommit, QoS: 0
Backtrace:
4   declarative-camera                  0x0000000104d89d7c _ZN15QMetalSwapChain7hdrInfoEv + 212
5   declarative-camera                  0x00000001062f8058 _ZN17QQuickVideoOutput9updateHdrEP12QSGVideoNode + 324
6   declarative-camera                  0x00000001062f7d04 _ZN17QQuickVideoOutput15updatePaintNodeEP7QSGNodePN10QQuickItem19UpdatePaintNodeDataE + 1032
7   declarative-camera                  0x00000001059529d8 _ZN19QQuickWindowPrivate15updateDirtyNodeEP10QQuickItem + 3812
8   declarative-camera                  0x000000010594a778 _ZN19QQuickWindowPrivate16updateDirtyNodesEv + 640
9   declarative-camera                  0x000000010594a2a0 _ZN19QQuickWindowPrivate14syncSceneGraphEv + 612
10  declarative-camera                  0x0000000105d89854 _ZN15QSGRenderThread4syncEb + 532
11  declarative-camera                  0x0000000105d8a85c _ZN15QSGRenderThread13syncAndRenderEv + 2944
12  declarative-camera                  0x0000000105d8bf78 _ZN15QSGRenderThread3runEv + 364
13  declarative-camera                  0x0000000104487ae0 _ZZN14QThreadPrivate5startEPvENK3$_1clEv + 732
14  declarative-camera                  0x0000000104486184 _ZN12_GLOBAL__N_122terminate_on_exceptionIZN14QThreadPrivate5startEPvE3$_1EEvOT_ + 24
15  declarative-camera                  0x0000000104486108 _ZN14QThreadPrivate5startEPv + 224
16  libsystem_pthread.dylib             0x00000001e10140ec _pthread_start + 116
17  libsystem_pthread.dylib             0x00000001e101272c thread_start + 8
2025-01-03 16:50:22.471120+0100 declarative-camera[746:65941] [reports] Main Thread Checker: UI API called on a background thread: -[UIWindowScene screen]
PID: 746, TID: 65941, Thread name: QSGRenderThread, Queue name: com.apple.root.default-qos.overcommit, QoS: 0
Backtrace:
4   declarative-camera                  0x0000000104d89d7c _ZN15QMetalSwapChain7hdrInfoEv + 212
5   declarative-camera                  0x00000001062f8058 _ZN17QQuickVideoOutput9updateHdrEP12QSGVideoNode + 324
6   declarative-camera                  0x00000001062f7d04 _ZN17QQuickVideoOutput15updatePaintNodeEP7QSGNodePN10QQuickItem19UpdatePaintNodeDataE + 1032
7   declarative-camera                  0x00000001059529d8 _ZN19QQuickWindowPrivate15updateDirtyNodeEP10QQuickItem + 3812
8   declarative-camera                  0x000000010594a778 _ZN19QQuickWindowPrivate16updateDirtyNodesEv + 640
9   declarative-camera                  0x000000010594a2a0 _ZN19QQuickWindowPrivate14syncSceneGraphEv + 612
10  declarative-camera                  0x0000000105d89854 _ZN15QSGRenderThread4syncEb + 532
11  declarative-camera                  0x0000000105d8a85c _ZN15QSGRenderThread13syncAndRenderEv + 2944
12  declarative-camera                  0x0000000105d8bf78 _ZN15QSGRenderThread3runEv + 364
13  declarative-camera                  0x0000000104487ae0 _ZZN14QThreadPrivate5startEPvENK3$_1clEv + 732
14  declarative-camera                  0x0000000104486184 _ZN12_GLOBAL__N_122terminate_on_exceptionIZN14QThreadPrivate5startEPvE3$_1EEvOT_ + 24
15  declarative-camera                  0x0000000104486108 _ZN14QThreadPrivate5startEPv + 224
16  libsystem_pthread.dylib             0x00000001e10140ec _pthread_start + 116
17  libsystem_pthread.dylib             0x00000001e101272c thread_start + 8

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            qtmultimediateam Qt Multimedia Team
            brennmat Matthias Brenner
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              Updated:

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