diff options
| author | Pavel Dubsky <pavel.dubsky@qt.io> | 2023-04-25 12:29:49 +0200 |
|---|---|---|
| committer | Qt Cherry-pick Bot <cherrypick_bot@qt-project.org> | 2023-04-26 11:59:34 +0000 |
| commit | e95692cbfc2771c50b2413a4ac0bdb9015cc7821 (patch) | |
| tree | 2be1a367d19c154403c8328280fda9de3321f4fe | |
| parent | 56c865762f87f721180d313c2afd449d87d6f05e (diff) | |
| download | qtmultimedia-e95692cbfc2771c50b2413a4ac0bdb9015cc7821.tar.gz | |
Fix QMediaDevices::videoInputs returning an empty list
When QMediaDevices::videoInputs is called without prior call to
QMediaDevices::audioOutputs the returned list is empty but if the
latter call is present everything works as it should. The reason is a
missing call to CoInitialize inside internal Windows-specific
implementation.
Task-number: QTBUG-112702
Change-Id: I462d3cf15f65329415539eb1bdde6be65ab9a407
Reviewed-by: Lars Knoll <lars@knoll.priv.no>
(cherry picked from commit 1689940a061235545d6cc316fcc924284e7c3f1b)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
| -rw-r--r-- | src/plugins/multimedia/windows/qwindowsvideodevices.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/plugins/multimedia/windows/qwindowsvideodevices.cpp b/src/plugins/multimedia/windows/qwindowsvideodevices.cpp index 878c4730b..409e26a19 100644 --- a/src/plugins/multimedia/windows/qwindowsvideodevices.cpp +++ b/src/plugins/multimedia/windows/qwindowsvideodevices.cpp @@ -59,6 +59,8 @@ static HWND createMessageOnlyWindow() QWindowsVideoDevices::QWindowsVideoDevices(QPlatformMediaIntegration *integration) : QPlatformVideoDevices(integration) { + CoInitialize(nullptr); + m_videoDeviceMsgWindow = createMessageOnlyWindow(); if (m_videoDeviceMsgWindow) { SetWindowLongPtr(m_videoDeviceMsgWindow, GWLP_USERDATA, (LONG_PTR)this); @@ -93,6 +95,8 @@ QWindowsVideoDevices::~QWindowsVideoDevices() DestroyWindow(m_videoDeviceMsgWindow); UnregisterClass(windowClassName, GetModuleHandle(nullptr)); } + + CoUninitialize(); } static std::optional<QCameraFormat> createCameraFormat(IMFMediaType *mediaFormat) |