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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [WinCairo][MediaFoundation] Crash when media player is destroyed."
href="https://bugs.webkit.org/show_bug.cgi?id=155716">155716</a>
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<th>Summary</th>
<td>[WinCairo][MediaFoundation] Crash when media player is destroyed.
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>WebKit Nightly Build
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<th>Hardware</th>
<td>Unspecified
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<th>OS</th>
<td>Unspecified
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>WebCore Misc.
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>peavo@outlook.com
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<pre>Sometimes I get a crash in the MediaPlayerPrivateMediaFoundation destructor when trying to release the custom video presenter member, which already has been released. This is because we have forgotten to call AddRef in the ActivateObject method. According to the documentation in <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/ms694292(v=vs.85).aspx">https://msdn.microsoft.com/en-us/library/windows/desktop/ms694292(v=vs.85).aspx</a>, the caller is responsible for releasing the returned object, which means we have to call AddRef.</pre>
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