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Details

Type: Bug
Resolution: Done
Priority: P2: Important
Fix Version/s: 5.4.0 Beta, 5.4.0
Affects Version/s: 5.3.2
Component/s: Multimedia
Labels:
None
Environment:
Windows 8.1 x64, qt-opensource-windows-x86-msvc2013_64-5.3.2_2014-09-05_14-11-24-145

Commits:
49dc6dc45956daa2b30ea3c56a5e5dfaac8ad9a1

Description

Run this QML file:

import QtQuick 2.0
import QtMultimedia 5.0
import QtQuick.Controls 1.0

ApplicationWindow {
    width: 600
    height: 600
    visible: true
    Repeater {
        model: checkBox.checked ? 1 : 0
        VideoOutput {
            anchors.centerIn: parent
            source: MediaPlayer {
                source: "video.mp4"
                autoPlay: true
                loops: MediaPlayer.Infinite
            }
        }
    }
    CheckBox {
        id: checkBox
        text: "enable player"
    }
}

Press the checkBox several times to create/destroy MediaPlayer.
The application crashes with call stack:

 
>	wmfengined.dll!D3DPresentEngine::presentSample(void * opaque, __int64 __formal) Line 305	C++
 	wmfengined.dll!D3DPresentEngine::qt_static_metacall(QObject * _o, QMetaObject::Call _c, int _id, void * * _a) Line 74	C++
 	Qt5Cored.dll!QMetaCallEvent::placeMetaCall(QObject * object) Line 488	C++
 	Qt5Cored.dll!QObject::event(QEvent * e) Line 1241	C++
 	Qt5Widgetsd.dll!QApplicationPrivate::notify_helper(QObject * receiver, QEvent * e) Line 3499	C++
 	Qt5Widgetsd.dll!QApplication::notify(QObject * receiver, QEvent * e) Line 2952	C++
 	Qt5Cored.dll!QCoreApplication::notifyInternal(QObject * receiver, QEvent * event) Line 935	C++
 	Qt5Cored.dll!QCoreApplication::sendEvent(QObject * receiver, QEvent * event) Line 237	C++
 	Qt5Cored.dll!QCoreApplicationPrivate::sendPostedEvents(QObject * receiver, int event_type, QThreadData * data) Line 1539	C++
 	Qt5Cored.dll!QCoreApplication::sendPostedEvents(QObject * receiver, int event_type) Line 1398	C++
 	qwindowsd.dll!QWindowsGuiEventDispatcher::sendPostedEvents() Line 89	C++
 	Qt5Cored.dll!qt_internal_proc(HWND__ * hwnd, unsigned int message, unsigned __int64 wp, __int64 lp) Line 421	C++
 	user32.dll!00007ffdca4e2434()	Unknown
 	user32.dll!00007ffdca4e2297()	Unknown
 	Qt5Cored.dll!QEventDispatcherWin32::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 795	C++
 	qwindowsd.dll!QWindowsGuiEventDispatcher::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 80	C++
 	Qt5Cored.dll!QEventLoop::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 137	C++
 	Qt5Cored.dll!QEventLoop::exec(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 212	C++
 	Qt5Cored.dll!QCoreApplication::exec() Line 1188	C++
 	Qt5Guid.dll!QGuiApplication::exec() Line 1484	C++
 	Qt5Widgetsd.dll!QApplication::exec() Line 2745	C++
 	qt_multimedia_test.exe!main(int argc, char * * argv) Line 11	C++
 	qt_multimedia_test.exe!WinMain(HINSTANCE__ * instance, HINSTANCE__ * prevInstance, char * __formal, int cmdShow) Line 131	C++
 	qt_multimedia_test.exe!__tmainCRTStartup() Line 618	C
 	qt_multimedia_test.exe!WinMainCRTStartup() Line 466	C
 	kernel32.dll!00007ffdc9ed16ad()	Unknown
 	ntdll.dll!00007ffdcabe34a5()	Unknown

I used this one video for the test:
http://techslides.com/demos/sample-videos/small.mp4