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diff --git a/src/plugins/alsa/qalsaaudiooutput.h b/src/plugins/alsa/qalsaaudiooutput.h
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+++ b/src/plugins/alsa/qalsaaudiooutput.h
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef QAUDIOOUTPUTALSA_H
+#define QAUDIOOUTPUTALSA_H
+
+#include <alsa/asoundlib.h>
+
+#include <QtCore/qfile.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/qtimer.h>
+#include <QtCore/qstring.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qdatetime.h>
+
+#include <QtMultimedia/qaudio.h>
+#include <QtMultimedia/qaudiodeviceinfo.h>
+#include <QtMultimedia/qaudiosystem.h>
+
+QT_BEGIN_NAMESPACE
+
+class QAlsaAudioOutput : public QAbstractAudioOutput
+{
+    friend class OutputPrivate;
+    Q_OBJECT
+public:
+    QAlsaAudioOutput(const QByteArray &device);
+    ~QAlsaAudioOutput();
+
+    qint64 write( const char *data, qint64 len );
+
+    void start(QIODevice* device);
+    QIODevice* start();
+    void stop();
+    void reset();
+    void suspend();
+    void resume();
+    int bytesFree() const;
+    int periodSize() const;
+    void setBufferSize(int value);
+    int bufferSize() const;
+    void setNotifyInterval(int milliSeconds);
+    int notifyInterval() const;
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
+    QAudio::Error error() const;
+    QAudio::State state() const;
+    void setFormat(const QAudioFormat& fmt);
+    QAudioFormat format() const;
+    void setVolume(qreal);
+    qreal volume() const;
+
+
+    QIODevice* audioSource;
+    QAudioFormat settings;
+    QAudio::Error errorState;
+    QAudio::State deviceState;
+
+private slots:
+    void userFeed();
+    void feedback();
+    void updateAvailable();
+    bool deviceReady();
+
+signals:
+    void processMore();
+
+private:
+    bool opened;
+    bool pullMode;
+    bool resuming;
+    int buffer_size;
+    int period_size;
+    int intervalTime;
+    qint64 totalTimeValue;
+    unsigned int buffer_time;
+    unsigned int period_time;
+    snd_pcm_uframes_t buffer_frames;
+    snd_pcm_uframes_t period_frames;
+    static void async_callback(snd_async_handler_t *ahandler);
+    int xrun_recovery(int err);
+
+    int setFormat();
+    bool open();
+    void close();
+
+    QTimer* timer;
+    QByteArray m_device;
+    int bytesAvailable;
+    QTime timeStamp;
+    QTime clockStamp;
+    qint64 elapsedTimeOffset;
+    char* audioBuffer;
+    snd_pcm_t* handle;
+    snd_async_handler_t* ahandler;
+    snd_pcm_access_t access;
+    snd_pcm_format_t pcmformat;
+    snd_timestamp_t* timestamp;
+    snd_pcm_hw_params_t *hwparams;
+    qreal m_volume;
+};
+
+class OutputPrivate : public QIODevice
+{
+    friend class QAlsaAudioOutput;
+    Q_OBJECT
+public:
+    OutputPrivate(QAlsaAudioOutput* audio);
+    ~OutputPrivate();
+
+    qint64 readData( char* data, qint64 len);
+    qint64 writeData(const char* data, qint64 len);
+
+private:
+    QAlsaAudioOutput *audioDevice;
+};
+
+QT_END_NAMESPACE
+
+
+#endif