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| author | Yoann Lopes <yoann.lopes@theqtcompany.com> | 2016-07-05 13:21:31 +0200 |
|---|---|---|
| committer | Yoann Lopes <yoann.lopes@qt.io> | 2016-07-06 07:35:57 +0000 |
| commit | fd89c0946a378812121615ab6b8a3ad1ae93d4fb (patch) | |
| tree | f986cfd07efe613236b66ada586cac9fd7020926 /src/plugins/directshow/player | |
| parent | 443ed0be093b2d8e78d111a59eca97f2eba5b0fe (diff) | |
| download | qtmultimedia-fd89c0946a378812121615ab6b8a3ad1ae93d4fb.tar.gz | |
DirectShow: correctly clear surface in EVR presenter
The surface was never cleared in the EVR presenter. It could lead to
situations where the presenter would use a destroyed surface.
Change-Id: If2223f09f6f8c20c06345bed40803da10dcf4ae3
Reviewed-by: Christian Stromme <christian.stromme@qt.io>
Diffstat (limited to 'src/plugins/directshow/player')
| -rw-r--r-- | src/plugins/directshow/player/directshowvideorenderercontrol.cpp | 24 | ||||
| -rw-r--r-- | src/plugins/directshow/player/directshowvideorenderercontrol.h | 6 |
2 files changed, 27 insertions, 3 deletions
diff --git a/src/plugins/directshow/player/directshowvideorenderercontrol.cpp b/src/plugins/directshow/player/directshowvideorenderercontrol.cpp index 027d2ce55..b5dbfef9e 100644 --- a/src/plugins/directshow/player/directshowvideorenderercontrol.cpp +++ b/src/plugins/directshow/player/directshowvideorenderercontrol.cpp @@ -46,11 +46,20 @@ DirectShowVideoRendererControl::DirectShowVideoRendererControl(DirectShowEventLo , m_loop(loop) , m_surface(0) , m_filter(0) +#ifdef HAVE_EVR + , m_evrPresenter(0) +#endif { } DirectShowVideoRendererControl::~DirectShowVideoRendererControl() { +#ifdef HAVE_EVR + if (m_evrPresenter) { + m_evrPresenter->setSurface(Q_NULLPTR); + m_evrPresenter->Release(); + } +#endif if (m_filter) m_filter->Release(); } @@ -65,6 +74,14 @@ void DirectShowVideoRendererControl::setSurface(QAbstractVideoSurface *surface) if (m_surface == surface) return; +#ifdef HAVE_EVR + if (m_evrPresenter) { + m_evrPresenter->setSurface(Q_NULLPTR); + m_evrPresenter->Release(); + m_evrPresenter = 0; + } +#endif + if (m_filter) { m_filter->Release(); m_filter = 0; @@ -75,12 +92,13 @@ void DirectShowVideoRendererControl::setSurface(QAbstractVideoSurface *surface) if (m_surface) { #ifdef HAVE_EVR m_filter = com_new<IBaseFilter>(clsid_EnhancedVideoRenderer); - EVRCustomPresenter *evrPresenter = new EVRCustomPresenter(m_surface); - if (!evrPresenter->isValid() || !qt_evr_setCustomPresenter(m_filter, evrPresenter)) { + m_evrPresenter = new EVRCustomPresenter(m_surface); + if (!m_evrPresenter->isValid() || !qt_evr_setCustomPresenter(m_filter, m_evrPresenter)) { m_filter->Release(); m_filter = 0; + m_evrPresenter->Release(); + m_evrPresenter = 0; } - evrPresenter->Release(); if (!m_filter) #endif diff --git a/src/plugins/directshow/player/directshowvideorenderercontrol.h b/src/plugins/directshow/player/directshowvideorenderercontrol.h index d08d124ca..e3d0a5f23 100644 --- a/src/plugins/directshow/player/directshowvideorenderercontrol.h +++ b/src/plugins/directshow/player/directshowvideorenderercontrol.h @@ -39,6 +39,9 @@ #include "qvideorenderercontrol.h" class DirectShowEventLoop; +#ifdef HAVE_EVR +class EVRCustomPresenter; +#endif QT_USE_NAMESPACE @@ -61,6 +64,9 @@ private: DirectShowEventLoop *m_loop; QAbstractVideoSurface *m_surface; IBaseFilter *m_filter; +#ifdef HAVE_EVR + EVRCustomPresenter *m_evrPresenter; +#endif }; #endif |