diff -r 000000000000 -r 1918ee327afb src/multimedia/audio/qaudiodeviceinfo.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/multimedia/audio/qaudiodeviceinfo.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtMultimedia module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#ifndef QAUDIODEVICEINFO_H
+#define QAUDIODEVICEINFO_H
+
+#include <QtCore/qobject.h>
+#include <QtCore/qglobal.h>
+#include <QtCore/qbytearray.h>
+#include <QtCore/qstring.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qlist.h>
+
+#include <QtMultimedia/qaudio.h>
+#include <QtMultimedia/qaudioformat.h>
+
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Multimedia)
+
+class QAudioDeviceFactory;
+
+class QAudioDeviceInfoPrivate;
+class Q_MULTIMEDIA_EXPORT QAudioDeviceInfo
+{
+    friend class QAudioDeviceFactory;
+
+public:
+    QAudioDeviceInfo();
+    QAudioDeviceInfo(const QAudioDeviceInfo& other);
+    ~QAudioDeviceInfo();
+
+    QAudioDeviceInfo& operator=(const QAudioDeviceInfo& other);
+
+    bool isNull() const;
+
+    QString deviceName() const;
+
+    bool isFormatSupported(const QAudioFormat &format) const;
+    QAudioFormat preferredFormat() const;
+    QAudioFormat nearestFormat(const QAudioFormat &format) const;
+
+    QStringList supportedCodecs() const;
+    QList<int> supportedFrequencies() const;
+    QList<int> supportedChannels() const;
+    QList<int> supportedSampleSizes() const;
+    QList<QAudioFormat::Endian> supportedByteOrders() const;
+    QList<QAudioFormat::SampleType> supportedSampleTypes() const;
+
+    static QAudioDeviceInfo defaultInputDevice();
+    static QAudioDeviceInfo defaultOutputDevice();
+
+    static QList<QAudioDeviceInfo> deviceList(QAudio::Mode mode);
+
+private:
+    QAudioDeviceInfo(const QString &realm, const QByteArray &handle, QAudio::Mode mode);
+    QString realm() const;
+    QByteArray handle() const;
+    QAudio::Mode mode() const;
+
+    QSharedDataPointer<QAudioDeviceInfoPrivate> d;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+Q_DECLARE_METATYPE(QAudioDeviceInfo)
+
+#endif // QAUDIODEVICEINFO_H