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diff --git a/src/plugins/gstreamer/audiodecoder/qgstreameraudiodecodersession.h b/src/plugins/gstreamer/audiodecoder/qgstreameraudiodecodersession.h
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+++ b/src/plugins/gstreamer/audiodecoder/qgstreameraudiodecodersession.h
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part 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 QGSTREAMERPLAYERSESSION_H
+#define QGSTREAMERPLAYERSESSION_H
+
+#include <QObject>
+#include "qgstreameraudiodecodercontrol.h"
+#include <private/qgstreamerbushelper_p.h>
+#include <private/qaudiodecoder_p.h>
+
+#if defined(HAVE_GST_APPSRC)
+#include "qgstappsrc.h"
+#endif
+
+#include <gst/gst.h>
+
+QT_BEGIN_NAMESPACE
+
+class QGstreamerBusHelper;
+class QGstreamerMessage;
+
+class QGstreamerAudioDecoderSession : public QObject,
+                                public QGstreamerBusMessageFilter
+{
+Q_OBJECT
+Q_INTERFACES(QGstreamerBusMessageFilter)
+
+public:
+    QGstreamerAudioDecoderSession(QObject *parent);
+    virtual ~QGstreamerAudioDecoderSession();
+
+    QGstreamerBusHelper *bus() const { return m_busHelper; }
+
+    QAudioDecoder::State state() const { return m_state; }
+    QAudioDecoder::State pendingState() const { return m_pendingState; }
+
+    bool processBusMessage(const QGstreamerMessage &message);
+
+#if defined(HAVE_GST_APPSRC)
+    QGstAppSrc *appsrc() const { return m_appSrc; }
+    static void configureAppSrcElement(GObject*, GObject*, GParamSpec*,QGstreamerAudioDecoderSession* _this);
+#endif
+
+    QString sourceFilename() const;
+    void setSourceFilename(const QString &fileName);
+
+    QIODevice* sourceDevice() const;
+    void setSourceDevice(QIODevice *device);
+
+    void start();
+    void stop();
+
+    QAudioFormat audioFormat() const;
+    void setAudioFormat(const QAudioFormat &format);
+
+    QAudioBuffer read(bool *ok);
+    bool bufferAvailable() const;
+
+signals:
+    void stateChanged(QAudioDecoder::State newState);
+    void formatChanged(const QAudioFormat &format);
+
+    void error(int error, const QString &errorString);
+
+    void bufferReady();
+    void bufferAvailableChanged(bool available);
+
+private:
+
+    void processInvalidMedia(QAudioDecoder::Error errorCode, const QString& errorString);
+
+    QAudioDecoder::State m_state;
+    QAudioDecoder::State m_pendingState;
+    QGstreamerBusHelper* m_busHelper;
+    GstBus* m_bus;
+    GstElement* m_playbin;
+
+#if defined(HAVE_GST_APPSRC)
+    QGstAppSrc *m_appSrc;
+#endif
+
+    QString mSource;
+    QIODevice *mDevice; // QWeakPointer perhaps
+    QAudioFormat mFormat;
+};
+
+QT_END_NAMESPACE
+
+#endif // QGSTREAMERPLAYERSESSION_H