Add the audio decoder variant of QMediaPlayer.

Rather than the probe based way of doing it.  Initially private.

Change-Id: I30005f8da22f6451cb9de8eb3f0e193838d48c93
Reviewed-by: Ling Hu <ling.hu@nokia.com>
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>

tests/auto/unit/qmultimedia_common/mockaudiodecoderservice.h

@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MOCKAUDIODECODERSERVICE_H
+#define MOCKAUDIODECODERSERVICE_H
+
+#include "qmediaservice.h"
+
+#include "mockaudiodecodercontrol.h"
+
+class MockAudioDecoderService : public QMediaService
+{
+    Q_OBJECT
+
+public:
+    MockAudioDecoderService(QObject *parent = 0)
+        : QMediaService(parent)
+    {
+        mockControl = new MockAudioDecoderControl(this);
+    }
+
+    ~MockAudioDecoderService()
+    {
+        delete mockControl;
+    }
+
+    QMediaControl* requestControl(const char *iid)
+    {
+        if (qstrcmp(iid, QAudioDecoderControl_iid) == 0)
+            return mockControl;
+        return 0;
+    }
+
+    void releaseControl(QMediaControl *control)
+    {
+        Q_UNUSED(control);
+    }
+
+    MockAudioDecoderControl *mockControl;
+};
+
+
+
+#endif // MOCKAUDIODECODERSERVICE_H