[Webkit-unassigned] [Bug 143088] [WinCairo] Crash when closing window while video is loading

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=143088

--- Comment #16 from peavo at outlook.com ---
(In reply to comment #14)
> Not sure this is related to MediaFoundation, mf.dll or a Windows update.
> After installing every updates available in Windows update, I still have the
> same crash...

Could you try to apply the following patch?
It seems to be recommended to release all MF objects before MFShutdown is called.

Index: MediaPlayerPrivateMediaFoundation.cpp
===================================================================
--- MediaPlayerPrivateMediaFoundation.cpp       (revisjon 182189)
+++ MediaPlayerPrivateMediaFoundation.cpp       (arbeidskopi)
@@ -293,6 +293,13 @@

 bool MediaPlayerPrivateMediaFoundation::endSession()
 {
+    // Release all MF objects before MFShutdown is called.
+    m_sourceResolver = nullptr;
+    m_mediaSource = nullptr;
+    m_topology = nullptr;
+    m_sourcePD = nullptr;
+    m_videoDisplay = nullptr;
+
     if (m_mediaSession) {
         m_mediaSession->Shutdown();
         m_mediaSession = nullptr;

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