DirectShow: use the EVR in the window control.

Reuse existing code from the WMF plugin, which already uses the EVR.
This enables HW-accelerated video decoding when using QMediaPlayer
with a QVideoWidget.

Task-number: QTBUG-45593
Change-Id: I757e4d53cd2c648aee6ba33a4851a8c6adc62843
Reviewed-by: Christian Stromme <christian.stromme@theqtcompany.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/src/plugins/directshow/player/directshowevrvideowindowcontrol.h b/src/plugins/directshow/player/directshowevrvideowindowcontrol.h
new file mode 100644
index 00000000..46171812
--- /dev/null
+++ b/src/plugins/directshow/player/directshowevrvideowindowcontrol.h
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DIRECTSHOWEVRVIDEOWINDOWCONTROL_H
+#define DIRECTSHOWEVRVIDEOWINDOWCONTROL_H
+
+#include "evrvideowindowcontrol.h"
+
+struct IBaseFilter;
+
+QT_USE_NAMESPACE
+
+class DirectShowEvrVideoWindowControl : public EvrVideoWindowControl
+{
+public:
+    DirectShowEvrVideoWindowControl(QObject *parent = 0);
+    ~DirectShowEvrVideoWindowControl();
+
+    IBaseFilter *filter();
+
+private:
+    IBaseFilter *m_evrFilter;
+};
+
+#endif // DIRECTSHOWEVRVIDEOWINDOWCONTROL_H