1 files changed, 82 insertions, 0 deletions
diff --git a/src/plugins/directshow/common/directshowobject.h b/src/plugins/directshow/common/directshowobject.h
new file mode 100644
index 000000000..cfac16f61
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+++ b/src/plugins/directshow/common/directshowobject.h
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DIRECTSHOWOBJECT_H
+#define DIRECTSHOWOBJECT_H
+
+#include "directshowglobal.h"
+
+QT_BEGIN_NAMESPACE
+
+class DirectShowObject
+{
+public:
+    DirectShowObject();
+    virtual ~DirectShowObject();
+
+    virtual HRESULT getInterface(REFIID riid, void **ppvObject);
+    ULONG ref();
+    ULONG unref();
+
+private:
+    Q_DISABLE_COPY(DirectShowObject)
+
+    volatile LONG m_ref;
+};
+
+HRESULT GetInterface(IUnknown *pUnk, void **ppv);
+
+#define DIRECTSHOW_OBJECT \
+public: \
+    STDMETHODIMP QueryInterface(REFIID riid, void **ppv) {          \
+        if (riid == IID_IUnknown)                                   \
+            return GetInterface(reinterpret_cast<IUnknown*>(this), ppv); \
+        else                                                        \
+            return getInterface(riid, ppv);                         \
+    };                                                              \
+    STDMETHODIMP_(ULONG) AddRef() {                                 \
+        return ref();                                               \
+    };                                                              \
+    STDMETHODIMP_(ULONG) Release() {                                \
+        return unref();                                             \
+    };
+
+QT_END_NAMESPACE
+
+#endif // DIRECTSHOWOBJECT_H