Initial copy of QtMultimediaKit.

Comes from original repo, with SHA1:
2c82d5611655e5967f5c5095af50c0991c4378b2

47 files changed, 14553 insertions, 0 deletions

diff --git a/src/multimediakit/audio/audio.pri b/src/multimediakit/audio/audio.pri
new file mode 100644
index 000000000..19163d4fc
--- /dev/null
+++ b/src/multimediakit/audio/audio.pri
@@ -0,0 +1,79 @@
+INCLUDEPATH += audio
+
+PUBLIC_HEADERS += audio/qaudio.h \
+           audio/qaudioformat.h \
+           audio/qaudioinput.h \
+           audio/qaudiooutput.h \
+           audio/qaudiodeviceinfo.h \
+           audio/qaudiosystemplugin.h \
+           audio/qaudiosystem.h 
+
+PRIVATE_HEADERS += audio/qaudiodevicefactory_p.h audio/qaudiopluginloader_p.h
+
+
+SOURCES += audio/qaudio.cpp \
+           audio/qaudioformat.cpp  \
+           audio/qaudiodeviceinfo.cpp \
+           audio/qaudiooutput.cpp \
+           audio/qaudioinput.cpp \
+           audio/qaudiosystemplugin.cpp \
+           audio/qaudiosystem.cpp \
+           audio/qaudiodevicefactory.cpp \
+           audio/qaudiopluginloader.cpp
+
+mac {
+    PRIVATE_HEADERS +=  audio/qaudioinput_mac_p.h \
+                audio/qaudiooutput_mac_p.h \
+                audio/qaudiodeviceinfo_mac_p.h \
+                audio/qaudio_mac_p.h
+
+    SOURCES += audio/qaudiodeviceinfo_mac_p.cpp \
+               audio/qaudiooutput_mac_p.cpp \
+               audio/qaudioinput_mac_p.cpp \
+               audio/qaudio_mac.cpp
+
+    LIBS += -framework ApplicationServices -framework CoreAudio -framework AudioUnit -framework AudioToolbox
+}
+
+win32 {
+    PRIVATE_HEADERS += audio/qaudioinput_win32_p.h audio/qaudiooutput_win32_p.h audio/qaudiodeviceinfo_win32_p.h
+    SOURCES += audio/qaudiodeviceinfo_win32_p.cpp \
+               audio/qaudiooutput_win32_p.cpp \
+               audio/qaudioinput_win32_p.cpp
+    !wince*:LIBS += -lwinmm
+    wince*:LIBS += -lcoredll
+    LIBS += -lstrmiids -lole32 -loleaut32
+}
+
+symbian {
+    INCLUDEPATH += $${EPOCROOT}epoc32/include/mmf/common
+    INCLUDEPATH += $${EPOCROOT}epoc32/include/mmf/server
+
+    PRIVATE_HEADERS += audio/qaudio_symbian_p.h \
+               audio/qaudiodeviceinfo_symbian_p.h \
+               audio/qaudioinput_symbian_p.h \
+               audio/qaudiooutput_symbian_p.h
+
+    SOURCES += audio/qaudio_symbian_p.cpp \
+               audio/qaudiodeviceinfo_symbian_p.cpp \
+               audio/qaudioinput_symbian_p.cpp \
+               audio/qaudiooutput_symbian_p.cpp
+
+    LIBS += -lmmfdevsound
+}
+
+unix:!mac:!symbian {
+    contains(pulseaudio_enabled, yes) {
+        DEFINES += QT_NO_AUDIO_BACKEND
+    }
+    else:contains(QT_CONFIG, alsa) {
+        linux-*|freebsd-*|openbsd-* {
+            DEFINES += HAS_ALSA
+            PRIVATE_HEADERS += audio/qaudiooutput_alsa_p.h audio/qaudioinput_alsa_p.h audio/qaudiodeviceinfo_alsa_p.h
+            SOURCES += audio/qaudiodeviceinfo_alsa_p.cpp \
+                   audio/qaudiooutput_alsa_p.cpp \
+                   audio/qaudioinput_alsa_p.cpp
+            LIBS_PRIVATE += -lasound
+        }
+    }
+}
diff --git a/src/multimediakit/audio/qaudio.cpp b/src/multimediakit/audio/qaudio.cpp
new file mode 100644
index 000000000..e823283f3
--- /dev/null
+++ b/src/multimediakit/audio/qaudio.cpp
@@ -0,0 +1,103 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <qaudio.h>
+
+
+QT_BEGIN_NAMESPACE
+
+namespace QAudio
+{
+
+class RegisterMetaTypes
+{
+public:
+    RegisterMetaTypes()
+    {
+        qRegisterMetaType<QAudio::Error>();
+        qRegisterMetaType<QAudio::State>();
+        qRegisterMetaType<QAudio::Mode>();
+    }
+
+} _register;
+
+}
+
+/*
+    \namespace QAudio
+    \brief The QAudio namespace contains enums used by the audio classes.
+    \inmodule QtMultimediaKit
+    \ingroup multimedia
+*/
+
+/*
+    \enum QAudio::Error
+
+    \value NoError         No errors have occurred
+    \value OpenError       An error occurred opening the audio device
+    \value IOError         An error occurred during read/write of audio device
+    \value UnderrunError   Audio data is not being fed to the audio device at a fast enough rate
+    \value FatalError      A non-recoverable error has occurred, the audio device is not usable at this time.
+*/
+
+/*
+    \enum QAudio::State
+
+    \value ActiveState     Audio data is being processed, this state is set after start() is called
+                           and while audio data is available to be processed.
+    \value SuspendedState  The audio device is in a suspended state, this state will only be entered
+                           after suspend() is called.
+    \value StoppedState    The audio device is closed, and is not processing any audio data
+    \value IdleState       The QIODevice passed in has no data and audio system's buffer is empty, this state
+                           is set after start() is called and while no audio data is available to be processed.
+*/
+
+/*
+    \enum QAudio::Mode
+
+    \value AudioOutput   audio output device
+    \value AudioInput    audio input device
+*/
+
+
+QT_END_NAMESPACE
+
diff --git a/src/multimediakit/audio/qaudio.h b/src/multimediakit/audio/qaudio.h
new file mode 100644
index 000000000..b8b585b69
--- /dev/null
+++ b/src/multimediakit/audio/qaudio.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QAUDIO_H
+#define QAUDIO_H
+
+#include <qmobilityglobal.h>
+#include <qtmedianamespace.h>
+
+#include <QtCore/qmetatype.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+//QTM_SYNC_HEADER_EXPORT QAudio
+
+namespace QAudio
+{
+    enum Error { NoError, OpenError, IOError, UnderrunError, FatalError };
+    enum State { ActiveState, SuspendedState, StoppedState, IdleState };
+    enum Mode { AudioInput, AudioOutput };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+Q_DECLARE_METATYPE(QAudio::Error)
+Q_DECLARE_METATYPE(QAudio::State)
+Q_DECLARE_METATYPE(QAudio::Mode)
+
+#endif // QAUDIO_H
diff --git a/src/multimediakit/audio/qaudio_mac.cpp b/src/multimediakit/audio/qaudio_mac.cpp
new file mode 100644
index 000000000..a13b54c39
--- /dev/null
+++ b/src/multimediakit/audio/qaudio_mac.cpp
@@ -0,0 +1,145 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include "qaudio_mac_p.h"
+
+QT_BEGIN_NAMESPACE
+
+// Debugging
+QDebug operator<<(QDebug dbg, const QAudioFormat& audioFormat)
+{
+    dbg.nospace() << "QAudioFormat(" <<
+            audioFormat.frequency() << "," <<
+            audioFormat.channels() << "," <<
+            audioFormat.sampleSize()<< "," <<
+            audioFormat.codec() << "," <<
+            audioFormat.byteOrder() << "," <<
+            audioFormat.sampleType() << ")";
+
+    return dbg.space();
+}
+
+
+// Conversion
+QAudioFormat toQAudioFormat(AudioStreamBasicDescription const& sf)
+{
+    QAudioFormat    audioFormat;
+
+    audioFormat.setFrequency(sf.mSampleRate);
+    audioFormat.setChannels(sf.mChannelsPerFrame);
+    audioFormat.setSampleSize(sf.mBitsPerChannel);
+    audioFormat.setCodec(QString::fromLatin1("audio/pcm"));
+    audioFormat.setByteOrder((sf.mFormatFlags & kAudioFormatFlagIsBigEndian) != 0 ? QAudioFormat::BigEndian : QAudioFormat::LittleEndian);
+    QAudioFormat::SampleType type = QAudioFormat::UnSignedInt;
+    if ((sf.mFormatFlags & kAudioFormatFlagIsSignedInteger) != 0)
+        type = QAudioFormat::SignedInt;
+    else if ((sf.mFormatFlags & kAudioFormatFlagIsFloat) != 0)
+        type = QAudioFormat::Float;
+    audioFormat.setSampleType(type);
+
+    return audioFormat;
+}
+
+AudioStreamBasicDescription toAudioStreamBasicDescription(QAudioFormat const& audioFormat)
+{
+    AudioStreamBasicDescription sf;
+
+    sf.mFormatFlags         = kAudioFormatFlagIsPacked;
+    sf.mSampleRate          = audioFormat.frequency();
+    sf.mFramesPerPacket     = 1;
+    sf.mChannelsPerFrame    = audioFormat.channels();
+    sf.mBitsPerChannel      = audioFormat.sampleSize();
+    sf.mBytesPerFrame       = sf.mChannelsPerFrame * (sf.mBitsPerChannel / 8);
+    sf.mBytesPerPacket      = sf.mFramesPerPacket * sf.mBytesPerFrame;
+    sf.mFormatID            = kAudioFormatLinearPCM;
+
+    switch (audioFormat.sampleType()) {
+    case QAudioFormat::SignedInt: sf.mFormatFlags |= kAudioFormatFlagIsSignedInteger; break;
+    case QAudioFormat::UnSignedInt: /* default */ break;
+    case QAudioFormat::Float: sf.mFormatFlags |= kAudioFormatFlagIsFloat; break;
+    case QAudioFormat::Unknown:  default: break;
+    }
+
+    if (audioFormat.byteOrder() == QAudioFormat::BigEndian)
+        sf.mFormatFlags |= kAudioFormatFlagIsBigEndian;
+
+    return sf;
+}
+
+// QAudioRingBuffer
+QAudioRingBuffer::QAudioRingBuffer(int bufferSize):
+    m_bufferSize(bufferSize)
+{
+    m_buffer = new char[m_bufferSize];
+    reset();
+}
+
+QAudioRingBuffer::~QAudioRingBuffer()
+{
+    delete m_buffer;
+}
+
+int QAudioRingBuffer::used() const
+{
+    return m_bufferUsed;
+}
+
+int QAudioRingBuffer::free() const
+{
+    return m_bufferSize - m_bufferUsed;
+}
+
+int QAudioRingBuffer::size() const
+{
+    return m_bufferSize;
+}
+
+void QAudioRingBuffer::reset()
+{
+    m_readPos = 0;
+    m_writePos = 0;
+    m_bufferUsed = 0;
+}
+
+QT_END_NAMESPACE
+
+
diff --git a/src/multimediakit/audio/qaudio_mac_p.h b/src/multimediakit/audio/qaudio_mac_p.h
new file mode 100644
index 000000000..bbd63e485
--- /dev/null
+++ b/src/multimediakit/audio/qaudio_mac_p.h
@@ -0,0 +1,142 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIO_MAC_P_H
+#define QAUDIO_MAC_P_H
+
+#include <CoreAudio/CoreAudio.h>
+
+#include <QtCore/qdebug.h>
+#include <QtCore/qatomic.h>
+
+#include <qaudioformat.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+
+extern QDebug operator<<(QDebug dbg, const QAudioFormat& audioFormat);
+
+extern QAudioFormat toQAudioFormat(const AudioStreamBasicDescription& streamFormat);
+extern AudioStreamBasicDescription toAudioStreamBasicDescription(QAudioFormat const& audioFormat);
+
+class QAudioRingBuffer
+{
+public:
+    typedef QPair<char*, int> Region;
+
+    QAudioRingBuffer(int bufferSize);
+    ~QAudioRingBuffer();
+
+    Region acquireReadRegion(int size)
+    {
+        const int used = m_bufferUsed.fetchAndAddAcquire(0);
+
+        if (used > 0) {
+            const int readSize = qMin(size, qMin(m_bufferSize - m_readPos, used));
+
+            return readSize > 0 ? Region(m_buffer + m_readPos, readSize) : Region(0, 0);
+        }
+
+        return Region(0, 0);
+    }
+
+    void releaseReadRegion(Region const& region)
+    {
+        m_readPos = (m_readPos + region.second) % m_bufferSize;
+
+        m_bufferUsed.fetchAndAddRelease(-region.second);
+    }
+
+    Region acquireWriteRegion(int size)
+    {
+        const int free = m_bufferSize - m_bufferUsed.fetchAndAddAcquire(0);
+
+        if (free > 0) {
+            const int writeSize = qMin(size, qMin(m_bufferSize - m_writePos, free));
+
+            return writeSize > 0 ? Region(m_buffer + m_writePos, writeSize) : Region(0, 0);
+        }
+
+        return Region(0, 0);
+    }
+
+    void releaseWriteRegion(Region const& region)
+    {
+        m_writePos = (m_writePos + region.second) % m_bufferSize;
+
+        m_bufferUsed.fetchAndAddRelease(region.second);
+    }
+
+    int used() const;
+    int free() const;
+    int size() const;
+
+    void reset();
+
+private:
+    int     m_bufferSize;
+    int     m_readPos;
+    int     m_writePos;
+    char*   m_buffer;
+    QAtomicInt  m_bufferUsed;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif  // QAUDIO_MAC_P_H
+
+
diff --git a/src/multimediakit/audio/qaudio_symbian_p.cpp b/src/multimediakit/audio/qaudio_symbian_p.cpp
new file mode 100644
index 000000000..08f329790
--- /dev/null
+++ b/src/multimediakit/audio/qaudio_symbian_p.cpp
@@ -0,0 +1,663 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qaudio_symbian_p.h"
+#include <mmffourcc.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace SymbianAudio {
+namespace Utils {
+
+//-----------------------------------------------------------------------------
+// Static data
+//-----------------------------------------------------------------------------
+
+// Sample rate / frequency
+
+typedef TMMFSampleRate SampleRateNative;
+typedef int SampleRateQt;
+
+const int SampleRateCount = 12;
+
+const SampleRateNative SampleRateListNative[SampleRateCount] = {
+        EMMFSampleRate8000Hz
+    ,   EMMFSampleRate11025Hz
+    ,   EMMFSampleRate12000Hz
+    ,   EMMFSampleRate16000Hz
+    ,   EMMFSampleRate22050Hz
+    ,   EMMFSampleRate24000Hz
+    ,   EMMFSampleRate32000Hz
+    ,   EMMFSampleRate44100Hz
+    ,   EMMFSampleRate48000Hz
+    ,   EMMFSampleRate64000Hz
+    ,   EMMFSampleRate88200Hz
+    ,   EMMFSampleRate96000Hz
+};
+
+const SampleRateQt SampleRateListQt[SampleRateCount] = {
+        8000
+    ,   11025
+    ,   12000
+    ,   16000
+    ,   22050
+    ,   24000
+    ,   32000
+    ,   44100
+    ,   48000
+    ,   64000
+    ,   88200
+    ,   96000
+};
+
+// Channels
+
+typedef TMMFMonoStereo ChannelsNative;
+typedef int ChannelsQt;
+
+const int ChannelsCount = 2;
+
+const ChannelsNative ChannelsListNative[ChannelsCount] = {
+        EMMFMono
+    ,   EMMFStereo
+};
+
+const ChannelsQt ChannelsListQt[ChannelsCount] = {
+        1
+    ,   2
+};
+
+// Encoding
+
+const int EncodingCount = 6;
+
+const TUint32 EncodingFourCC[EncodingCount] = {
+        KMMFFourCCCodePCM8              // 0
+    ,   KMMFFourCCCodePCMU8             // 1
+    ,   KMMFFourCCCodePCM16             // 2
+    ,   KMMFFourCCCodePCMU16            // 3
+    ,   KMMFFourCCCodePCM16B            // 4
+    ,   KMMFFourCCCodePCMU16B           // 5
+};
+
+// The characterised DevSound API specification states that the iEncoding
+// field in TMMFCapabilities is ignored, and that the FourCC should be used
+// to specify the PCM encoding.
+// See "SGL.GT0287.102 Multimedia DevSound Baseline Compatibility.doc" in the
+// mm_info/mm_docs repository.
+const TMMFSoundEncoding EncodingNative[EncodingCount] = {
+        EMMFSoundEncoding16BitPCM       // 0
+    ,   EMMFSoundEncoding16BitPCM       // 1
+    ,   EMMFSoundEncoding16BitPCM       // 2
+    ,   EMMFSoundEncoding16BitPCM       // 3
+    ,   EMMFSoundEncoding16BitPCM       // 4
+    ,   EMMFSoundEncoding16BitPCM       // 5
+};
+
+
+const int EncodingSampleSize[EncodingCount] = {
+        8                               // 0
+    ,   8                               // 1
+    ,   16                              // 2
+    ,   16                              // 3
+    ,   16                              // 4
+    ,   16                              // 5
+};
+
+const QAudioFormat::Endian EncodingByteOrder[EncodingCount] = {
+        QAudioFormat::LittleEndian      // 0
+    ,   QAudioFormat::LittleEndian      // 1
+    ,   QAudioFormat::LittleEndian      // 2
+    ,   QAudioFormat::LittleEndian      // 3
+    ,   QAudioFormat::BigEndian         // 4
+    ,   QAudioFormat::BigEndian         // 5
+};
+
+const QAudioFormat::SampleType EncodingSampleType[EncodingCount] = {
+        QAudioFormat::SignedInt         // 0
+    ,   QAudioFormat::UnSignedInt       // 1
+    ,   QAudioFormat::SignedInt         // 2
+    ,   QAudioFormat::UnSignedInt       // 3
+    ,   QAudioFormat::SignedInt         // 4
+    ,   QAudioFormat::UnSignedInt       // 5
+};
+
+
+//-----------------------------------------------------------------------------
+// Private functions
+//-----------------------------------------------------------------------------
+
+// Helper functions for implementing parameter conversions
+
+template<typename Input>
+bool findValue(const Input *inputArray, int length, Input input, int &index) {
+    bool result = false;
+    for (int i=0; !result && i<length; ++i)
+        if (inputArray[i] == input) {
+            index = i;
+            result = true;
+        }
+    return result;
+}
+
+template<typename Input, typename Output>
+bool convertValue(const Input *inputArray, const Output *outputArray,
+    int length, Input input, Output &output) {
+    int index;
+    const bool result = findValue<Input>(inputArray, length, input, index);
+    if (result)
+        output = outputArray[index];
+    return result;
+}
+
+/**
+ * Macro which is used to generate the implementation of the conversion
+ * functions.  The implementation is just a wrapper around the templated
+ * convertValue function, e.g.
+ *
+ * CONVERSION_FUNCTION_IMPL(SampleRate, Qt, Native)
+ *
+ * expands to
+ *
+ * bool SampleRateQtToNative(int input, TMMFSampleRate &output) {
+ *      return convertValue<SampleRateQt, SampleRateNative>
+ *          (SampleRateListQt, SampleRateListNative, SampleRateCount,
+ *          input, output);
+ * }
+ */
+#define CONVERSION_FUNCTION_IMPL(FieldLc, Field, Input, Output)               \
+bool FieldLc##Input##To##Output(Field##Input input, Field##Output &output) {  \
+    return convertValue<Field##Input, Field##Output>(Field##List##Input,      \
+        Field##List##Output, Field##Count, input, output);                    \
+}
+
+//-----------------------------------------------------------------------------
+// Local helper functions
+//-----------------------------------------------------------------------------
+
+CONVERSION_FUNCTION_IMPL(sampleRate, SampleRate, Qt, Native)
+CONVERSION_FUNCTION_IMPL(sampleRate, SampleRate, Native, Qt)
+CONVERSION_FUNCTION_IMPL(channels, Channels, Qt, Native)
+CONVERSION_FUNCTION_IMPL(channels, Channels, Native, Qt)
+
+bool sampleInfoQtToNative(int inputSampleSize,
+                          QAudioFormat::Endian inputByteOrder,
+                          QAudioFormat::SampleType inputSampleType,
+                          TUint32 &outputFourCC,
+                          TMMFSoundEncoding &outputEncoding) {
+
+    bool found = false;
+
+    for (int i=0; i<EncodingCount && !found; ++i) {
+        if (    EncodingSampleSize[i] == inputSampleSize
+            &&  EncodingByteOrder[i] == inputByteOrder
+            &&  EncodingSampleType[i] == inputSampleType) {
+            outputFourCC = EncodingFourCC[i];
+            outputEncoding = EncodingNative[i]; // EMMFSoundEncoding16BitPCM
+            found = true;
+        }
+    }
+
+    return found;
+}
+
+void capabilitiesNativeToQt(const TMMFCapabilities &caps,
+                            const TFourCC &fourcc,
+                            QList<int> &frequencies,
+                            QList<int> &channels,
+                            QList<int> &sampleSizes,
+                            QList<QAudioFormat::Endian> &byteOrders,
+                            QList<QAudioFormat::SampleType> &sampleTypes) {
+
+    frequencies.clear();
+    sampleSizes.clear();
+    byteOrders.clear();
+    sampleTypes.clear();
+    channels.clear();
+
+    for (int i=0; i<SampleRateCount; ++i)
+        if (caps.iRate & SampleRateListNative[i])
+            frequencies += SampleRateListQt[i];
+
+    for (int i=0; i<ChannelsCount; ++i)
+        if (caps.iChannels & ChannelsListNative[i])
+            channels += ChannelsListQt[i];
+
+    for (int i=0; i<EncodingCount; ++i) {
+        if (fourcc == EncodingFourCC[i]) {
+            sampleSizes += EncodingSampleSize[i];
+            byteOrders += EncodingByteOrder[i];
+            sampleTypes += EncodingSampleType[i];
+        }
+    }
+}
+
+bool formatQtToNative(const QAudioFormat &inputFormat,
+                      TUint32 &outputFourCC,
+                      TMMFCapabilities &outputFormat) {
+
+    bool result = false;
+
+    // Need to use temporary variables because TMMFCapabilities fields are all
+    // TInt, rather than MMF enumerated types.
+    TMMFSampleRate outputSampleRate;
+    TMMFMonoStereo outputChannels;
+    TMMFSoundEncoding outputEncoding;
+
+    if (inputFormat.codec() == QLatin1String("audio/pcm")) {
+        result =
+                sampleRateQtToNative(inputFormat.frequency(), outputSampleRate)
+            &&  channelsQtToNative(inputFormat.channels(), outputChannels)
+            &&  sampleInfoQtToNative(inputFormat.sampleSize(),
+                                     inputFormat.byteOrder(),
+                                     inputFormat.sampleType(),
+                                     outputFourCC,
+                                     outputEncoding);
+    }
+
+    if (result) {
+        outputFormat.iRate = outputSampleRate;
+        outputFormat.iChannels = outputChannels;
+        outputFormat.iEncoding = outputEncoding;
+    }
+
+    return result;
+}
+
+QAudio::State stateNativeToQt(State nativeState)
+{
+    switch (nativeState) {
+    case ClosedState:
+        return QAudio::StoppedState;
+    case InitializingState:
+        return QAudio::StoppedState;
+    case ActiveState:
+        return QAudio::ActiveState;
+    case IdleState:
+        return QAudio::IdleState;
+    case SuspendedPausedState:
+    case SuspendedStoppedState:
+        return QAudio::SuspendedState;
+    default:
+        Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid state");
+        return QAudio::StoppedState; // suppress compiler warning
+    }
+}
+
+qint64 bytesToSamples(const QAudioFormat &format, qint64 length)
+{
+    return length / ((format.sampleSize() / 8) * format.channels());
+}
+
+qint64 samplesToBytes(const QAudioFormat &format, qint64 samples)
+{
+    return samples * (format.sampleSize() / 8) * format.channels();
+}
+
+} // namespace Utils
+
+
+//-----------------------------------------------------------------------------
+// DevSoundWrapper
+//-----------------------------------------------------------------------------
+
+DevSoundWrapper::DevSoundWrapper(QAudio::Mode mode, QObject *parent)
+    :   QObject(parent)
+    ,   m_mode(mode)
+    ,   m_state(StateIdle)
+    ,   m_devsound(0)
+    ,   m_fourcc(0)
+{
+    QT_TRAP_THROWING(m_devsound = CMMFDevSound::NewL());
+
+    switch (mode) {
+    case QAudio::AudioOutput:
+        m_nativeMode = EMMFStatePlaying;
+        break;
+
+    case QAudio::AudioInput:
+        m_nativeMode = EMMFStateRecording;
+        break;
+
+    default:
+        Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid mode");
+    }
+
+    getSupportedCodecs();
+}
+
+DevSoundWrapper::~DevSoundWrapper()
+{
+    delete m_devsound;
+}
+
+const QList<QString>& DevSoundWrapper::supportedCodecs() const
+{
+    return m_supportedCodecs;
+}
+
+void DevSoundWrapper::initialize(const QString& codec)
+{
+    Q_ASSERT(StateInitializing != m_state);
+    m_state = StateInitializing;
+    if (QLatin1String("audio/pcm") == codec) {
+        m_fourcc = KMMFFourCCCodePCM16;
+        TRAPD(err, m_devsound->InitializeL(*this, m_fourcc, m_nativeMode));
+        if (KErrNone != err) {
+            m_state = StateIdle;
+            emit initializeComplete(err);
+        }
+    } else {
+        emit initializeComplete(KErrNotSupported);
+    }
+}
+
+const QList<int>& DevSoundWrapper::supportedFrequencies() const
+{
+    Q_ASSERT(StateInitialized == m_state);
+    return m_supportedFrequencies;
+}
+
+const QList<int>& DevSoundWrapper::supportedChannels() const
+{
+    Q_ASSERT(StateInitialized == m_state);
+    return m_supportedChannels;
+}
+
+const QList<int>& DevSoundWrapper::supportedSampleSizes() const
+{
+    Q_ASSERT(StateInitialized == m_state);
+    return m_supportedSampleSizes;
+}
+
+const QList<QAudioFormat::Endian>& DevSoundWrapper::supportedByteOrders() const
+{
+    Q_ASSERT(StateInitialized == m_state);
+    return m_supportedByteOrders;
+}
+
+const QList<QAudioFormat::SampleType>& DevSoundWrapper::supportedSampleTypes() const
+{
+    Q_ASSERT(StateInitialized == m_state);
+    return m_supportedSampleTypes;
+}
+
+bool DevSoundWrapper::isFormatSupported(const QAudioFormat &format) const
+{
+    Q_ASSERT(StateInitialized == m_state);
+    return m_supportedCodecs.contains(format.codec())
+        && m_supportedFrequencies.contains(format.frequency())
+        && m_supportedChannels.contains(format.channels())
+        && m_supportedSampleSizes.contains(format.sampleSize())
+        && m_supportedSampleTypes.contains(format.sampleType())
+        && m_supportedByteOrders.contains(format.byteOrder());
+}
+
+int DevSoundWrapper::samplesProcessed() const
+{
+    int result = 0;
+    if (StateInitialized == m_state) {
+        switch (m_mode) {
+        case QAudio::AudioInput:
+            result = m_devsound->SamplesRecorded();
+            break;
+        case QAudio::AudioOutput:
+            result = m_devsound->SamplesPlayed();
+            break;
+        }
+    }
+    return result;
+}
+
+bool DevSoundWrapper::setFormat(const QAudioFormat &format)
+{
+    Q_ASSERT(StateInitialized == m_state);
+    bool result = false;
+    TUint32 fourcc;
+    TMMFCapabilities nativeFormat;
+    if (Utils::formatQtToNative(format, fourcc, nativeFormat)) {
+        TMMFCapabilities currentNativeFormat = m_devsound->Config();
+        nativeFormat.iBufferSize = currentNativeFormat.iBufferSize;
+        TRAPD(err, m_devsound->SetConfigL(nativeFormat));
+        result = (KErrNone == err);
+    }
+    return result;
+}
+
+bool DevSoundWrapper::start()
+{
+    Q_ASSERT(StateInitialized == m_state);
+    int err = KErrArgument;
+    switch (m_mode) {
+    case QAudio::AudioInput:
+        TRAP(err, m_devsound->RecordInitL());
+        break;
+    case QAudio::AudioOutput:
+        TRAP(err, m_devsound->PlayInitL());
+        break;
+    }
+    return (KErrNone == err);
+}
+
+bool DevSoundWrapper::pause()
+{
+    Q_ASSERT(StateInitialized == m_state);
+#ifndef PRE_S60_52_PLATFORM
+    if (m_mode == QAudio::AudioOutput ) {
+        m_devsound->Pause();
+        return true;
+    } else {
+        const bool canPause = isResumeSupported();
+        if (canPause)
+            m_devsound->Pause();
+        else
+            stop();
+        return canPause;
+    }
+#else
+    const bool canPause = isResumeSupported();
+    if (canPause)
+        m_devsound->Pause();
+    else
+        stop();
+    return canPause;
+#endif
+}
+
+void DevSoundWrapper::resume()
+{
+    Q_ASSERT(StateInitialized == m_state);
+    Q_ASSERT(isResumeSupported());
+    // TODO: QTBUG-13625
+}
+
+void DevSoundWrapper::stop()
+{
+    m_devsound->Stop();
+}
+
+void DevSoundWrapper::bufferProcessed()
+{
+    Q_ASSERT(StateInitialized == m_state);
+    switch (m_mode) {
+    case QAudio::AudioInput:
+        m_devsound->RecordData();
+        break;
+    case QAudio::AudioOutput:
+        m_devsound->PlayData();
+        break;
+    }
+}
+
+void DevSoundWrapper::getSupportedCodecs()
+{
+/*
+ * TODO: once we support formats other than PCM, this function should
+ * convert the array of FourCC codes into MIME types for each codec.
+ *
+    RArray<TFourCC> fourcc;
+    QT_TRAP_THROWING(CleanupClosePushL(&fourcc));
+
+    TMMFPrioritySettings settings;
+    switch (mode) {
+    case QAudio::AudioOutput:
+        settings.iState = EMMFStatePlaying;
+        m_devsound->GetSupportedInputDataTypesL(fourcc, settings);
+        break;
+
+    case QAudio::AudioInput:
+        settings.iState = EMMFStateRecording;
+        m_devsound->GetSupportedInputDataTypesL(fourcc, settings);
+        break;
+
+    default:
+        Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid mode");
+    }
+
+    CleanupStack::PopAndDestroy(); // fourcc
+*/
+
+    m_supportedCodecs.append(QLatin1String("audio/pcm"));
+}
+
+void DevSoundWrapper::populateCapabilities()
+{
+    m_supportedFrequencies.clear();
+    m_supportedChannels.clear();
+    m_supportedSampleSizes.clear();
+    m_supportedByteOrders.clear();
+    m_supportedSampleTypes.clear();
+
+    const TMMFCapabilities caps = m_devsound->Capabilities();
+
+    for (int i=0; i<Utils::SampleRateCount; ++i)
+        if (caps.iRate & Utils::SampleRateListNative[i])
+            m_supportedFrequencies += Utils::SampleRateListQt[i];
+
+    for (int i=0; i<Utils::ChannelsCount; ++i)
+        if (caps.iChannels & Utils::ChannelsListNative[i])
+            m_supportedChannels += Utils::ChannelsListQt[i];
+
+    for (int i=0; i<Utils::EncodingCount; ++i) {
+        if (m_fourcc == Utils::EncodingFourCC[i]) {
+            m_supportedSampleSizes += Utils::EncodingSampleSize[i];
+            m_supportedByteOrders += Utils::EncodingByteOrder[i];
+            m_supportedSampleTypes += Utils::EncodingSampleType[i];
+        }
+    }
+}
+
+bool DevSoundWrapper::isResumeSupported() const
+{
+    // TODO: QTBUG-13625
+    return false;
+}
+
+void DevSoundWrapper::InitializeComplete(TInt aError)
+{
+    Q_ASSERT(StateInitializing == m_state);
+    if (KErrNone == aError) {
+        m_state = StateInitialized;
+        populateCapabilities();
+    } else {
+        m_state = StateIdle;
+    }
+    emit initializeComplete(aError);
+}
+
+void DevSoundWrapper::ToneFinished(TInt aError)
+{
+    Q_UNUSED(aError)
+    // This class doesn't use DevSound's tone playback functions, so should
+    // never receive this callback.
+    Q_ASSERT_X(false, Q_FUNC_INFO, "Unexpected callback");
+}
+
+void DevSoundWrapper::BufferToBeFilled(CMMFBuffer *aBuffer)
+{
+    Q_ASSERT(QAudio::AudioOutput == m_mode);
+    emit bufferToBeProcessed(aBuffer);
+}
+
+void DevSoundWrapper::PlayError(TInt aError)
+{
+    Q_ASSERT(QAudio::AudioOutput == m_mode);
+    emit processingError(aError);
+}
+
+void DevSoundWrapper::BufferToBeEmptied(CMMFBuffer *aBuffer)
+{
+    Q_ASSERT(QAudio::AudioInput == m_mode);
+    emit bufferToBeProcessed(aBuffer);
+}
+
+void DevSoundWrapper::RecordError(TInt aError)
+{
+    Q_ASSERT(QAudio::AudioInput == m_mode);
+    emit processingError(aError);
+}
+
+void DevSoundWrapper::ConvertError(TInt aError)
+{
+    Q_UNUSED(aError)
+    // This class doesn't use DevSound's format conversion functions, so
+    // should never receive this callback.
+    Q_ASSERT_X(false, Q_FUNC_INFO, "Unexpected callback");
+}
+
+void DevSoundWrapper::DeviceMessage(TUid aMessageType, const TDesC8 &aMsg)
+{
+    Q_UNUSED(aMessageType)
+    Q_UNUSED(aMsg)
+    // Ignore this callback.
+}
+
+#ifndef PRE_S60_52_PLATFORM
+int DevSoundWrapper::flush()
+{
+    return m_devsound->EmptyBuffers();
+}
+#endif
+} // namespace SymbianAudio
+
+QT_END_NAMESPACE
+
+
diff --git a/src/multimediakit/audio/qaudio_symbian_p.h b/src/multimediakit/audio/qaudio_symbian_p.h
new file mode 100644
index 000000000..26f1a3f44
--- /dev/null
+++ b/src/multimediakit/audio/qaudio_symbian_p.h
@@ -0,0 +1,204 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIO_SYMBIAN_P_H
+#define QAUDIO_SYMBIAN_P_H
+
+#include <QtCore/qnamespace.h>
+#include <QtCore/QList>
+#include <QtCore/QString>
+#include <qaudioformat.h>
+#include <qaudio.h>
+#include <sounddevice.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace SymbianAudio {
+
+/**
+ * Default values used by audio input and output classes, when underlying
+ * DevSound instance has not yet been created.
+ */
+
+const int DefaultBufferSize = 4096; // bytes
+const int DefaultNotifyInterval = 1000; // ms
+
+/**
+ * Enumeration used to track state of internal DevSound instances.
+ * Values are translated to the corresponding QAudio::State values by
+ * SymbianAudio::Utils::stateNativeToQt.
+ */
+enum State {
+        ClosedState
+    ,   InitializingState
+    ,   ActiveState
+    ,   IdleState
+    // QAudio is suspended; DevSound is paused
+    ,   SuspendedPausedState
+    // QAudio is suspended; DevSound is stopped
+    ,   SuspendedStoppedState
+};
+
+/**
+ * Wrapper around DevSound instance
+ */
+class DevSoundWrapper
+    :   public QObject
+    ,   public MDevSoundObserver
+{
+    Q_OBJECT
+
+public:
+    DevSoundWrapper(QAudio::Mode mode, QObject *parent = 0);
+    ~DevSoundWrapper();
+
+public:
+    // List of supported codecs; can be called once object is constructed
+    const QList<QString>& supportedCodecs() const;
+
+    // Asynchronous initialization function; emits devsoundInitializeComplete
+    void initialize(const QString& codec);
+
+    // Capabilities, for selected codec.  Can be called once initialize has returned
+    // successfully.
+    const QList<int>& supportedFrequencies() const;
+    const QList<int>& supportedChannels() const;
+    const QList<int>& supportedSampleSizes() const;
+    const QList<QAudioFormat::Endian>& supportedByteOrders() const;
+    const QList<QAudioFormat::SampleType>& supportedSampleTypes() const;
+
+    bool isFormatSupported(const QAudioFormat &format) const;
+
+    int samplesProcessed() const;
+    bool setFormat(const QAudioFormat &format);
+    bool start();
+
+    // If DevSound implementation supports pause, calls pause and returns true.
+    // Otherwise calls stop and returns false.  In this case, all DevSound buffers
+    // currently held by the backend must be discarded.
+    bool pause();
+
+    void resume();
+
+    void stop();
+    void bufferProcessed();
+#ifndef PRE_S60_52_PLATFORM
+    int flush();
+#endif
+
+public:
+    // MDevSoundObserver
+    void InitializeComplete(TInt aError);
+    void ToneFinished(TInt aError);
+    void BufferToBeFilled(CMMFBuffer *aBuffer);
+    void PlayError(TInt aError);
+    void BufferToBeEmptied(CMMFBuffer *aBuffer);
+    void RecordError(TInt aError);
+    void ConvertError(TInt aError);
+    void DeviceMessage(TUid aMessageType, const TDesC8 &aMsg);
+
+signals:
+    void initializeComplete(int error);
+    void bufferToBeProcessed(CMMFBuffer *buffer);
+    void processingError(int error);
+
+private:
+    void getSupportedCodecs();
+    void populateCapabilities();
+    bool isResumeSupported() const;
+
+private:
+    const QAudio::Mode              m_mode;
+    TMMFState                       m_nativeMode;
+
+    enum State {
+        StateIdle,
+        StateInitializing,
+        StateInitialized
+    }                               m_state;
+
+    CMMFDevSound*                   m_devsound;
+    TFourCC                         m_fourcc;
+
+    QList<QString>                  m_supportedCodecs;
+    QList<int>                      m_supportedFrequencies;
+    QList<int>                      m_supportedChannels;
+    QList<int>                      m_supportedSampleSizes;
+    QList<QAudioFormat::Endian>     m_supportedByteOrders;
+    QList<QAudioFormat::SampleType> m_supportedSampleTypes;
+
+};
+
+
+namespace Utils {
+
+/**
+ * Convert internal states to QAudio states.
+ */
+QAudio::State stateNativeToQt(State nativeState);
+
+/**
+ * Convert data length to number of samples.
+ */
+qint64 bytesToSamples(const QAudioFormat &format, qint64 length);
+
+/**
+ * Convert number of samples to data length.
+ */
+qint64 samplesToBytes(const QAudioFormat &format, qint64 samples);
+
+} // namespace Utils
+} // namespace SymbianAudio
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimediakit/audio/qaudiodevicefactory.cpp b/src/multimediakit/audio/qaudiodevicefactory.cpp
new file mode 100644
index 000000000..221b327dc
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodevicefactory.cpp
@@ -0,0 +1,292 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/qdebug.h>
+
+#include "qaudiosystem.h"
+#include "qaudiosystemplugin.h"
+
+#include "qaudiopluginloader_p.h"
+#include "qaudiodevicefactory_p.h"
+
+#ifndef QT_NO_AUDIO_BACKEND
+#if defined(Q_OS_WIN)
+#include "qaudiodeviceinfo_win32_p.h"
+#include "qaudiooutput_win32_p.h"
+#include "qaudioinput_win32_p.h"
+#elif defined(Q_OS_MAC)
+#include "qaudiodeviceinfo_mac_p.h"
+#include "qaudiooutput_mac_p.h"
+#include "qaudioinput_mac_p.h"
+#elif defined(HAS_ALSA)
+#include "qaudiodeviceinfo_alsa_p.h"
+#include "qaudiooutput_alsa_p.h"
+#include "qaudioinput_alsa_p.h"
+#elif defined(Q_OS_SYMBIAN)
+#include "qaudiodeviceinfo_symbian_p.h"
+#include "qaudiooutput_symbian_p.h"
+#include "qaudioinput_symbian_p.h"
+#endif
+#endif
+
+QT_BEGIN_NAMESPACE
+
+#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+Q_GLOBAL_STATIC_WITH_ARGS(QAudioPluginLoader, audioLoader,
+        (QAudioSystemFactoryInterface_iid, QLatin1String("/audio"), Qt::CaseInsensitive))
+#endif
+
+class QNullDeviceInfo : public QAbstractAudioDeviceInfo
+{
+public:
+    QAudioFormat preferredFormat() const { qWarning()<<"using null deviceinfo, none available"; return QAudioFormat(); }
+    bool isFormatSupported(const QAudioFormat& ) const { return false; }
+    QAudioFormat nearestFormat(const QAudioFormat& ) const { return QAudioFormat(); }
+    QString deviceName() const { return QString(); }
+    QStringList supportedCodecs() { return QStringList(); }
+    QList<int> supportedSampleRates()  { return QList<int>(); }
+    QList<int> supportedChannelCounts() { return QList<int>(); }
+    QList<int> supportedSampleSizes() { return QList<int>(); }
+    QList<QAudioFormat::Endian> supportedByteOrders() { return QList<QAudioFormat::Endian>(); }
+    QList<QAudioFormat::SampleType> supportedSampleTypes() { return QList<QAudioFormat::SampleType>(); }
+};
+
+class QNullInputDevice : public QAbstractAudioInput
+{
+public:
+    void start(QIODevice*) { qWarning()<<"using null input device, none available";}
+    QIODevice* start() { qWarning()<<"using null input device, none available"; return 0; }
+    void stop() {}
+    void reset() {}
+    void suspend() {}
+    void resume() {}
+    int bytesReady() const { return 0; }
+    int periodSize() const { return 0; }
+    void setBufferSize(int ) {}
+    int bufferSize() const  { return 0; }
+    void setNotifyInterval(int ) {}
+    int notifyInterval() const { return 0; }
+    qint64 processedUSecs() const { return 0; }
+    qint64 elapsedUSecs() const { return 0; }
+    QAudio::Error error() const { return QAudio::OpenError; }
+    QAudio::State state() const { return QAudio::StoppedState; }
+    void setFormat(const QAudioFormat&) {}
+    QAudioFormat format() const { return QAudioFormat(); }
+};
+
+class QNullOutputDevice : public QAbstractAudioOutput
+{
+public:
+    void start(QIODevice*) {qWarning()<<"using null output device, none available";}
+    QIODevice* start() { qWarning()<<"using null output device, none available"; return 0; }
+    void stop() {}
+    void reset() {}
+    void suspend() {}
+    void resume() {}
+    int bytesFree() const { return 0; }
+    int periodSize() const { return 0; }
+    void setBufferSize(int ) {}
+    int bufferSize() const  { return 0; }
+    void setNotifyInterval(int ) {}
+    int notifyInterval() const { return 0; }
+    qint64 processedUSecs() const { return 0; }
+    qint64 elapsedUSecs() const { return 0; }
+    QAudio::Error error() const { return QAudio::OpenError; }
+    QAudio::State state() const { return QAudio::StoppedState; }
+    void setFormat(const QAudioFormat&) {}
+    QAudioFormat format() const { return QAudioFormat(); }
+};
+
+QList<QAudioDeviceInfo> QAudioDeviceFactory::availableDevices(QAudio::Mode mode)
+{
+    QList<QAudioDeviceInfo> devices;
+#ifndef QT_NO_AUDIO_BACKEND
+#if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA) || defined(Q_OS_SYMBIAN))
+    foreach (const QByteArray &handle, QAudioDeviceInfoInternal::availableDevices(mode))
+        devices << QAudioDeviceInfo(QLatin1String("builtin"), handle, mode);
+#endif
+#endif
+
+#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+    QAudioPluginLoader* l = audioLoader();
+    foreach (const QString& key, l->keys()) {
+        QAudioSystemFactoryInterface* plugin = qobject_cast<QAudioSystemFactoryInterface*>(l->instance(key));
+        if (plugin) {
+            foreach (QByteArray const& handle, plugin->availableDevices(mode))
+                devices << QAudioDeviceInfo(key, handle, mode);
+        }
+
+        delete plugin;
+    }
+#endif
+
+    return devices;
+}
+
+QAudioDeviceInfo QAudioDeviceFactory::defaultInputDevice()
+{
+#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+    QAudioSystemFactoryInterface* plugin = qobject_cast<QAudioSystemFactoryInterface*>(audioLoader()->instance(QLatin1String("default")));
+
+    if (plugin) {
+        QList<QByteArray> list = plugin->availableDevices(QAudio::AudioInput);
+        if (list.size() > 0)
+            return QAudioDeviceInfo(QLatin1String("default"), list.at(0), QAudio::AudioInput);
+    }
+#endif
+
+#ifndef QT_NO_AUDIO_BACKEND
+#if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA) || defined(Q_OS_SYMBIAN))
+    return QAudioDeviceInfo(QLatin1String("builtin"), QAudioDeviceInfoInternal::defaultInputDevice(), QAudio::AudioInput);
+#endif
+#endif
+    return QAudioDeviceInfo();
+}
+
+QAudioDeviceInfo QAudioDeviceFactory::defaultOutputDevice()
+{
+#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+    QAudioSystemFactoryInterface* plugin = qobject_cast<QAudioSystemFactoryInterface*>(audioLoader()->instance(QLatin1String("default")));
+
+    if (plugin) {
+        QList<QByteArray> list = plugin->availableDevices(QAudio::AudioOutput);
+        if (list.size() > 0)
+            return QAudioDeviceInfo(QLatin1String("default"), list.at(0), QAudio::AudioOutput);
+    }
+#endif
+
+#ifndef QT_NO_AUDIO_BACKEND
+#if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA) || defined(Q_OS_SYMBIAN))
+    return QAudioDeviceInfo(QLatin1String("builtin"), QAudioDeviceInfoInternal::defaultOutputDevice(), QAudio::AudioOutput);
+#endif
+#endif
+    return QAudioDeviceInfo();
+}
+
+QAbstractAudioDeviceInfo* QAudioDeviceFactory::audioDeviceInfo(const QString &realm, const QByteArray &handle, QAudio::Mode mode)
+{
+    QAbstractAudioDeviceInfo *rc = 0;
+
+#ifndef QT_NO_AUDIO_BACKEND
+#if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA) || defined(Q_OS_SYMBIAN))
+    if (realm == QLatin1String("builtin"))
+        return new QAudioDeviceInfoInternal(handle, mode);
+#endif
+#endif
+
+#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+    QAudioSystemFactoryInterface* plugin =
+        qobject_cast<QAudioSystemFactoryInterface*>(audioLoader()->instance(realm));
+
+    if (plugin)
+        rc = plugin->createDeviceInfo(handle, mode);
+#endif
+
+    return rc == 0 ? new QNullDeviceInfo() : rc;
+}
+
+QAbstractAudioInput* QAudioDeviceFactory::createDefaultInputDevice(QAudioFormat const &format)
+{
+    return createInputDevice(defaultInputDevice(), format);
+}
+
+QAbstractAudioOutput* QAudioDeviceFactory::createDefaultOutputDevice(QAudioFormat const &format)
+{
+    return createOutputDevice(defaultOutputDevice(), format);
+}
+
+QAbstractAudioInput* QAudioDeviceFactory::createInputDevice(QAudioDeviceInfo const& deviceInfo, QAudioFormat const &format)
+{
+    if (deviceInfo.isNull())
+        return new QNullInputDevice();
+#ifndef QT_NO_AUDIO_BACKEND
+#if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA) || defined(Q_OS_SYMBIAN))
+    if (deviceInfo.realm() == QLatin1String("builtin")) {
+        QAbstractAudioInput* p = new QAudioInputPrivate(deviceInfo.handle());
+        if (p) p->setFormat(format);
+        return p;
+    }
+#endif
+#endif
+#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+    QAudioSystemFactoryInterface* plugin =
+        qobject_cast<QAudioSystemFactoryInterface*>(audioLoader()->instance(deviceInfo.realm()));
+
+    if (plugin) {
+        QAbstractAudioInput* p = plugin->createInput(deviceInfo.handle());
+        if (p) p->setFormat(format);
+        return p;
+    }
+#endif
+
+    return new QNullInputDevice();
+}
+
+QAbstractAudioOutput* QAudioDeviceFactory::createOutputDevice(QAudioDeviceInfo const& deviceInfo, QAudioFormat const &format)
+{
+    if (deviceInfo.isNull())
+        return new QNullOutputDevice();
+#ifndef QT_NO_AUDIO_BACKEND
+#if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA) || defined(Q_OS_SYMBIAN))
+    if (deviceInfo.realm() == QLatin1String("builtin")) {
+        QAbstractAudioOutput* p = new QAudioOutputPrivate(deviceInfo.handle());
+        if (p) p->setFormat(format);
+        return p;
+    }
+#endif
+#endif
+
+#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
+    QAudioSystemFactoryInterface* plugin =
+        qobject_cast<QAudioSystemFactoryInterface*>(audioLoader()->instance(deviceInfo.realm()));
+
+    if (plugin) {
+        QAbstractAudioOutput* p = plugin->createOutput(deviceInfo.handle());
+        if (p) p->setFormat(format);
+        return p;
+    }
+#endif
+
+    return new QNullOutputDevice();
+}
+
+QT_END_NAMESPACE
+
diff --git a/src/multimediakit/audio/qaudiodevicefactory_p.h b/src/multimediakit/audio/qaudiodevicefactory_p.h
new file mode 100644
index 000000000..e162e04d6
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodevicefactory_p.h
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIODEVICEFACTORY_P_H
+#define QAUDIODEVICEFACTORY_P_H
+
+#include <QtCore/qbytearray.h>
+#include <QtCore/qlist.h>
+
+#include <qmobilityglobal.h>
+#include <qtmedianamespace.h>
+
+#include "qaudiodeviceinfo.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QAbstractAudioInput;
+class QAbstractAudioOutput;
+class QAbstractAudioDeviceInfo;
+
+class QAudioDeviceFactory
+{
+public:
+    static QList<QAudioDeviceInfo> availableDevices(QAudio::Mode mode);
+
+    static QAudioDeviceInfo defaultInputDevice();
+    static QAudioDeviceInfo defaultOutputDevice();
+
+    static QAbstractAudioDeviceInfo* audioDeviceInfo(const QString &realm, const QByteArray &handle, QAudio::Mode mode);
+
+    static QAbstractAudioInput* createDefaultInputDevice(QAudioFormat const &format);
+    static QAbstractAudioOutput* createDefaultOutputDevice(QAudioFormat const &format);
+
+    static QAbstractAudioInput* createInputDevice(QAudioDeviceInfo const &device, QAudioFormat const &format);
+    static QAbstractAudioOutput* createOutputDevice(QAudioDeviceInfo const &device, QAudioFormat const &format);
+
+    static QAbstractAudioInput* createNullInput();
+    static QAbstractAudioOutput* createNullOutput();
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QAUDIODEVICEFACTORY_P_H
+
diff --git a/src/multimediakit/audio/qaudiodeviceinfo.cpp b/src/multimediakit/audio/qaudiodeviceinfo.cpp
new file mode 100644
index 000000000..44cc8fe79
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo.cpp
@@ -0,0 +1,487 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qaudiodevicefactory_p.h"
+#include "qaudiosystem.h"
+#include "qaudiodeviceinfo.h"
+
+#include <QtCore/qmap.h>
+
+QT_BEGIN_NAMESPACE
+
+class QAudioDeviceInfoPrivate : public QSharedData
+{
+public:
+    QAudioDeviceInfoPrivate():info(0) {}
+    QAudioDeviceInfoPrivate(const QString &r, const QByteArray &h, QAudio::Mode m):
+        realm(r), handle(h), mode(m)
+    {
+        if (!handle.isEmpty())
+            info = QAudioDeviceFactory::audioDeviceInfo(realm, handle, mode);
+        else
+            info = NULL;
+    }
+
+    QAudioDeviceInfoPrivate(const QAudioDeviceInfoPrivate &other):
+        QSharedData(other),
+        realm(other.realm), handle(other.handle), mode(other.mode)
+    {
+        info = QAudioDeviceFactory::audioDeviceInfo(realm, handle, mode);
+    }
+
+    QAudioDeviceInfoPrivate& operator=(const QAudioDeviceInfoPrivate &other)
+    {
+        delete info;
+
+        realm = other.realm;
+        handle = other.handle;
+        mode = other.mode;
+        info = QAudioDeviceFactory::audioDeviceInfo(realm, handle, mode);
+        return *this;
+    }
+
+    ~QAudioDeviceInfoPrivate()
+    {
+        delete info;
+    }
+
+    QString     realm;
+    QByteArray  handle;
+    QAudio::Mode mode;
+    QAbstractAudioDeviceInfo*   info;
+};
+
+
+/*!
+    \class QAudioDeviceInfo
+    \brief The QAudioDeviceInfo class provides an interface to query audio devices and their functionality.
+    \inmodule QtMultimediaKit
+    \ingroup multimedia
+
+    \since QtMobility 1.0
+
+    QAudioDeviceInfo lets you query for audio devices--such as sound
+    cards and USB headsets--that are currently available on the system.
+    The audio devices available are dependent on the platform or audio plugins installed.
+
+    A QAudioDeviceInfo is used by Qt to construct
+    classes that communicate with the device--such as
+    QAudioInput, and QAudioOutput.
+
+    You can also query each device for the formats it supports. A
+    format in this context is a set consisting of a specific byte
+    order, channel, codec, frequency, sample rate, and sample type.  A
+    format is represented by the QAudioFormat class.
+
+    The values supported by the the device for each of these
+    parameters can be fetched with
+    supportedByteOrders(), supportedChannelCounts(), supportedCodecs(),
+    supportedSampleRates(), supportedSampleSizes(), and
+    supportedSampleTypes(). The combinations supported are dependent on the platform,
+    audio plugins installed and the audio device capabilities. If you need a
+    specific format, you can check if
+    the device supports it with isFormatSupported(), or fetch a
+    supported format that is as close as possible to the format with
+    nearestFormat(). For instance:
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Setting audio format
+
+    The static
+    functions defaultInputDevice(), defaultOutputDevice(), and
+    availableDevices() let you get a list of all available
+    devices. Devices are fetched according to the value of mode
+    this is specified by the \l {QAudio}::Mode enum.
+    The QAudioDeviceInfo returned are only valid for the \l {QAudio}::Mode.
+
+    For instance:
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Dumping audio formats
+
+    In this code sample, we loop through all devices that are able to output
+    sound, i.e., play an audio stream in a supported format. For each device we
+    find, we simply print the deviceName().
+
+    \sa QAudioOutput, QAudioInput
+*/
+
+/*!
+    Constructs an empty QAudioDeviceInfo object.
+*/
+QAudioDeviceInfo::QAudioDeviceInfo():
+    d(new QAudioDeviceInfoPrivate)
+{
+}
+
+/*!
+    Constructs a copy of \a other.
+    \since 1.0
+*/
+QAudioDeviceInfo::QAudioDeviceInfo(const QAudioDeviceInfo& other):
+    d(other.d)
+{
+}
+
+/*!
+    Destroy this audio device info.
+*/
+QAudioDeviceInfo::~QAudioDeviceInfo()
+{
+}
+
+/*!
+    Sets the QAudioDeviceInfo object to be equal to \a other.
+    \since 1.0
+*/
+QAudioDeviceInfo& QAudioDeviceInfo::operator=(const QAudioDeviceInfo &other)
+{
+    d = other.d;
+    return *this;
+}
+
+/*!
+    Returns whether this QAudioDeviceInfo object holds a device definition.
+    \since 1.0
+*/
+bool QAudioDeviceInfo::isNull() const
+{
+    return d->info == 0;
+}
+
+/*!
+    Returns the human readable name of the audio device.
+
+    Device names vary depending on the platform/audio plugin being used.
+
+    XXX
+
+    They are a unique string identifier for the audio device.
+
+    eg. default, Intel, U0x46d0x9a4
+    \since 1.0
+*/
+QString QAudioDeviceInfo::deviceName() const
+{
+    return isNull() ? QString() : d->info->deviceName();
+}
+
+/*!
+    Returns true if the supplied \a settings are supported by the audio
+    device described by this QAudioDeviceInfo.
+    \since 1.0
+*/
+bool QAudioDeviceInfo::isFormatSupported(const QAudioFormat &settings) const
+{
+    return isNull() ? false : d->info->isFormatSupported(settings);
+}
+
+/*!
+    Returns the default audio format settings for this device.
+
+    These settings are provided by the platform/audio plugin being used.
+
+    They are also dependent on the \l {QAudio}::Mode being used.
+
+    A typical audio system would provide something like:
+    \list
+    \o Input settings: 8000Hz mono 8 bit.
+    \o Output settings: 44100Hz stereo 16 bit little endian.
+    \endlist
+    \since 1.0
+*/
+QAudioFormat QAudioDeviceInfo::preferredFormat() const
+{
+    return isNull() ? QAudioFormat() : d->info->preferredFormat();
+}
+
+/*!
+    Returns the closest QAudioFormat to the supplied \a settings that the system supports.
+
+    These settings are provided by the platform/audio plugin being used.
+
+    They are also dependent on the \l {QAudio}::Mode being used.
+    \since 1.0
+*/
+QAudioFormat QAudioDeviceInfo::nearestFormat(const QAudioFormat &settings) const
+{
+    if (isFormatSupported(settings))
+        return settings;
+
+    QAudioFormat nearest = settings;
+
+    QList<QString> testCodecs = supportedCodecs();
+    QList<int> testChannels = supportedChannels();
+    QList<QAudioFormat::Endian> testByteOrders = supportedByteOrders();
+    QList<QAudioFormat::SampleType> testSampleTypes;
+    QList<QAudioFormat::SampleType> sampleTypesAvailable = supportedSampleTypes();
+    QMap<int,int> testFrequencies;
+    QList<int> frequenciesAvailable = supportedFrequencies();
+    QMap<int,int> testSampleSizes;
+    QList<int> sampleSizesAvailable = supportedSampleSizes();
+
+    // Get sorted lists for checking
+    if (testCodecs.contains(settings.codec())) {
+        testCodecs.removeAll(settings.codec());
+        testCodecs.insert(0, settings.codec());
+    }
+    testChannels.removeAll(settings.channels());
+    testChannels.insert(0, settings.channels());
+    testByteOrders.removeAll(settings.byteOrder());
+    testByteOrders.insert(0, settings.byteOrder());
+
+    if (sampleTypesAvailable.contains(settings.sampleType()))
+        testSampleTypes.append(settings.sampleType());
+    if (sampleTypesAvailable.contains(QAudioFormat::SignedInt))
+        testSampleTypes.append(QAudioFormat::SignedInt);
+    if (sampleTypesAvailable.contains(QAudioFormat::UnSignedInt))
+        testSampleTypes.append(QAudioFormat::UnSignedInt);
+    if (sampleTypesAvailable.contains(QAudioFormat::Float))
+        testSampleTypes.append(QAudioFormat::Float);
+
+    if (sampleSizesAvailable.contains(settings.sampleSize()))
+        testSampleSizes.insert(0,settings.sampleSize());
+    sampleSizesAvailable.removeAll(settings.sampleSize());
+    foreach (int size, sampleSizesAvailable) {
+        int larger  = (size > settings.sampleSize()) ? size : settings.sampleSize();
+        int smaller = (size > settings.sampleSize()) ? settings.sampleSize() : size;
+        bool isMultiple = ( 0 == (larger % smaller));
+        int diff = larger - smaller;
+        testSampleSizes.insert((isMultiple ? diff : diff+100000), size);
+    }
+    if (frequenciesAvailable.contains(settings.frequency()))
+        testFrequencies.insert(0,settings.frequency());
+    frequenciesAvailable.removeAll(settings.frequency());
+    foreach (int frequency, frequenciesAvailable) {
+        int larger  = (frequency > settings.frequency()) ? frequency : settings.frequency();
+        int smaller = (frequency > settings.frequency()) ? settings.frequency() : frequency;
+        bool isMultiple = ( 0 == (larger % smaller));
+        int diff = larger - smaller;
+        testFrequencies.insert((isMultiple ? diff : diff+100000), frequency);
+    }
+
+    // Try to find nearest
+    foreach (QString codec, testCodecs) {
+        nearest.setCodec(codec);
+        foreach (QAudioFormat::Endian order, testByteOrders) {
+            nearest.setByteOrder(order);
+            foreach (QAudioFormat::SampleType sample, testSampleTypes) {
+                nearest.setSampleType(sample);
+                QMapIterator<int, int> sz(testSampleSizes);
+                while (sz.hasNext()) {
+                    sz.next();
+                    nearest.setSampleSize(sz.value());
+                    foreach (int channel, testChannels) {
+                        nearest.setChannels(channel);
+                        QMapIterator<int, int> i(testFrequencies);
+                        while (i.hasNext()) {
+                            i.next();
+                            nearest.setFrequency(i.value());
+                            if (isFormatSupported(nearest))
+                                return nearest;
+                        }
+                    }
+                }
+            }
+        }
+    }
+    //Fallback
+    return preferredFormat();
+}
+
+/*!
+    Returns a list of supported codecs.
+
+    All platform and plugin implementations should provide support for:
+
+    "audio/pcm" - Linear PCM
+
+    For writing plugins to support additional codecs refer to:
+
+    http://www.iana.org/assignments/media-types/audio/
+    \since 1.0
+*/
+QStringList QAudioDeviceInfo::supportedCodecs() const
+{
+    return isNull() ? QStringList() : d->info->supportedCodecs();
+}
+
+/*!
+    Returns a list of supported sample rates (in Hertz).
+
+    \since 1.0
+*/
+QList<int> QAudioDeviceInfo::supportedSampleRates() const
+{
+    return supportedFrequencies();
+}
+
+/*!
+    \obsolete
+
+    Use supportedSampleRates() instead.
+    \since 1.0
+*/
+QList<int> QAudioDeviceInfo::supportedFrequencies() const
+{
+    return isNull() ? QList<int>() : d->info->supportedSampleRates();
+}
+
+/*!
+    Returns a list of supported channel counts.
+
+    This is typically 1 for mono sound, or 2 for stereo sound.
+
+    \since 1.0
+*/
+QList<int> QAudioDeviceInfo::supportedChannelCounts() const
+{
+    return supportedChannels();
+}
+
+/*!
+    \obsolete
+
+    Use supportedChannelCount() instead.
+    \since 1.0
+*/
+QList<int> QAudioDeviceInfo::supportedChannels() const
+{
+    return isNull() ? QList<int>() : d->info->supportedChannelCounts();
+}
+
+/*!
+    Returns a list of supported sample sizes (in bits).
+
+    Typically this will include 8 and 16 bit sample sizes.
+
+    \since 1.0
+*/
+QList<int> QAudioDeviceInfo::supportedSampleSizes() const
+{
+    return isNull() ? QList<int>() : d->info->supportedSampleSizes();
+}
+
+/*!
+    Returns a list of supported byte orders.
+    \since 1.0
+*/
+QList<QAudioFormat::Endian> QAudioDeviceInfo::supportedByteOrders() const
+{
+    return isNull() ? QList<QAudioFormat::Endian>() : d->info->supportedByteOrders();
+}
+
+/*!
+    Returns a list of supported sample types.
+    \since 1.0
+*/
+QList<QAudioFormat::SampleType> QAudioDeviceInfo::supportedSampleTypes() const
+{
+    return isNull() ? QList<QAudioFormat::SampleType>() : d->info->supportedSampleTypes();
+}
+
+/*!
+    Returns the information for the default input audio device.
+    All platform and audio plugin implementations provide a default audio device to use.
+    \since 1.0
+*/
+QAudioDeviceInfo QAudioDeviceInfo::defaultInputDevice()
+{
+    return QAudioDeviceFactory::defaultInputDevice();
+}
+
+/*!
+    Returns the information for the default output audio device.
+    All platform and audio plugin implementations provide a default audio device to use.
+    \since 1.0
+*/
+QAudioDeviceInfo QAudioDeviceInfo::defaultOutputDevice()
+{
+    return QAudioDeviceFactory::defaultOutputDevice();
+}
+
+/*!
+    Returns a list of audio devices that support \a mode.
+    \since 1.0
+*/
+QList<QAudioDeviceInfo> QAudioDeviceInfo::availableDevices(QAudio::Mode mode)
+{
+    return QAudioDeviceFactory::availableDevices(mode);
+}
+
+
+/*!
+    \internal
+    \since 1.0
+*/
+QAudioDeviceInfo::QAudioDeviceInfo(const QString &realm, const QByteArray &handle, QAudio::Mode mode):
+    d(new QAudioDeviceInfoPrivate(realm, handle, mode))
+{
+}
+
+/*!
+    \internal
+    \since 1.0
+*/
+QString QAudioDeviceInfo::realm() const
+{
+    return d->realm;
+}
+
+/*!
+    \internal
+    \since 1.0
+*/
+QByteArray QAudioDeviceInfo::handle() const
+{
+    return d->handle;
+}
+
+
+/*!
+    \internal
+    \since 1.0
+*/
+QAudio::Mode QAudioDeviceInfo::mode() const
+{
+    return d->mode;
+}
+
+QT_END_NAMESPACE
+
diff --git a/src/multimediakit/audio/qaudiodeviceinfo.h b/src/multimediakit/audio/qaudiodeviceinfo.h
new file mode 100644
index 000000000..547093238
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo.h
@@ -0,0 +1,113 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QAUDIODEVICEINFO_H
+#define QAUDIODEVICEINFO_H
+
+#include <QtCore/qobject.h>
+#include <QtCore/qbytearray.h>
+#include <QtCore/qstring.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qlist.h>
+
+#include <qmobilityglobal.h>
+#include <qtmedianamespace.h>
+
+#include <qaudio.h>
+#include <qaudioformat.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+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> supportedSampleRates() const;
+    QList<int> supportedChannels() const;
+    QList<int> supportedChannelCounts() const;
+    QList<int> supportedSampleSizes() const;
+    QList<QAudioFormat::Endian> supportedByteOrders() const;
+    QList<QAudioFormat::SampleType> supportedSampleTypes() const;
+
+    static QAudioDeviceInfo defaultInputDevice();
+    static QAudioDeviceInfo defaultOutputDevice();
+
+    static QList<QAudioDeviceInfo> availableDevices(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
diff --git a/src/multimediakit/audio/qaudiodeviceinfo_alsa_p.cpp b/src/multimediakit/audio/qaudiodeviceinfo_alsa_p.cpp
new file mode 100644
index 000000000..bce7039ab
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo_alsa_p.cpp
@@ -0,0 +1,535 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// INTERNAL USE ONLY: Do NOT use for any other purpose.
+//
+
+#include "qaudiodeviceinfo_alsa_p.h"
+
+#include <alsa/version.h>
+
+QT_BEGIN_NAMESPACE
+
+QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray dev, QAudio::Mode mode)
+{
+    handle = 0;
+
+    device = QLatin1String(dev);
+    this->mode = mode;
+
+    checkSurround();
+}
+
+QAudioDeviceInfoInternal::~QAudioDeviceInfoInternal()
+{
+    close();
+}
+
+bool QAudioDeviceInfoInternal::isFormatSupported(const QAudioFormat& format) const
+{
+    return testSettings(format);
+}
+
+QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const
+{
+    QAudioFormat nearest;
+    if(mode == QAudio::AudioOutput) {
+        nearest.setFrequency(44100);
+        nearest.setChannels(2);
+        nearest.setByteOrder(QAudioFormat::LittleEndian);
+        nearest.setSampleType(QAudioFormat::SignedInt);
+        nearest.setSampleSize(16);
+        nearest.setCodec(QLatin1String("audio/pcm"));
+    } else {
+        nearest.setFrequency(8000);
+        nearest.setChannels(1);
+        nearest.setSampleType(QAudioFormat::UnSignedInt);
+        nearest.setSampleSize(8);
+        nearest.setCodec(QLatin1String("audio/pcm"));
+        if(!testSettings(nearest)) {
+            nearest.setChannels(2);
+            nearest.setSampleSize(16);
+            nearest.setSampleType(QAudioFormat::SignedInt);
+        }
+    }
+    return nearest;
+}
+
+QString QAudioDeviceInfoInternal::deviceName() const
+{
+    return device;
+}
+
+QStringList QAudioDeviceInfoInternal::supportedCodecs()
+{
+    updateLists();
+    return codecz;
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedSampleRates()
+{
+    updateLists();
+    return freqz;
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedChannelCounts()
+{
+    updateLists();
+    return channelz;
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedSampleSizes()
+{
+    updateLists();
+    return sizez;
+}
+
+QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::supportedByteOrders()
+{
+    updateLists();
+    return byteOrderz;
+}
+
+QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::supportedSampleTypes()
+{
+    updateLists();
+    return typez;
+}
+
+bool QAudioDeviceInfoInternal::open()
+{
+    int err = 0;
+    QString dev = device;
+    QList<QByteArray> devices = availableDevices(mode);
+
+    if(dev.compare(QLatin1String("default")) == 0) {
+#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
+        if (devices.size() > 0)
+            dev = QLatin1String(devices.first().constData());
+        else
+            return false;
+#else
+        dev = QLatin1String("hw:0,0");
+#endif
+    } else {
+#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
+        dev = device;
+#else
+        int idx = 0;
+        char *name;
+
+        QString shortName = device.mid(device.indexOf(QLatin1String("="),0)+1);
+
+	while(snd_card_get_name(idx,&name) == 0) {
+            if(dev.contains(QLatin1String(name)))
+                break;
+            idx++;
+	}
+        dev = QString(QLatin1String("hw:%1,0")).arg(idx);
+#endif
+    }
+    if(mode == QAudio::AudioOutput) {
+        err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_PLAYBACK,0);
+    } else {
+        err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_CAPTURE,0);
+    }
+    if(err < 0) {
+        handle = 0;
+        return false;
+    }
+    return true;
+}
+
+void QAudioDeviceInfoInternal::close()
+{
+    if(handle)
+        snd_pcm_close(handle);
+    handle = 0;
+}
+
+bool QAudioDeviceInfoInternal::testSettings(const QAudioFormat& format) const
+{
+    // Set nearest to closest settings that do work.
+    // See if what is in settings will work (return value).
+    int err = 0;
+    snd_pcm_t* handle;
+    snd_pcm_hw_params_t *params;
+    QString dev = device;
+
+    QList<QByteArray> devices = QAudioDeviceInfoInternal::availableDevices(QAudio::AudioOutput);
+
+    if(dev.compare(QLatin1String("default")) == 0) {
+#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
+        dev = QLatin1String(devices.first().constData());
+#else
+        dev = QLatin1String("hw:0,0");
+#endif
+    } else {
+#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
+        dev = device;
+#else
+        int idx = 0;
+        char *name;
+
+        QString shortName = device.mid(device.indexOf(QLatin1String("="),0)+1);
+
+        while(snd_card_get_name(idx,&name) == 0) {
+            if(shortName.compare(QLatin1String(name)) == 0)
+                break;
+            idx++;
+        }
+        dev = QString(QLatin1String("hw:%1,0")).arg(idx);
+#endif
+    }
+    if(mode == QAudio::AudioOutput) {
+        err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_PLAYBACK,0);
+    } else {
+        err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_CAPTURE,0);
+    }
+    if(err < 0) {
+        handle = 0;
+        return false;
+    }
+
+    bool testChannel = false;
+    bool testCodec = false;
+    bool testFreq = false;
+    bool testType = false;
+    bool testSize = false;
+
+    int  dir = 0;
+
+    snd_pcm_nonblock( handle, 0 );
+    snd_pcm_hw_params_alloca( &params );
+    snd_pcm_hw_params_any( handle, params );
+
+    // set the values!
+    snd_pcm_hw_params_set_channels(handle,params,format.channels());
+    snd_pcm_hw_params_set_rate(handle,params,format.frequency(),dir);
+
+    err = -1;
+
+    switch(format.sampleSize()) {
+        case 8:
+            if(format.sampleType() == QAudioFormat::SignedInt)
+                err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S8);
+            else if(format.sampleType() == QAudioFormat::UnSignedInt)
+                err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U8);
+            break;
+        case 16:
+            if(format.sampleType() == QAudioFormat::SignedInt) {
+                if(format.byteOrder() == QAudioFormat::LittleEndian)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_LE);
+                else if(format.byteOrder() == QAudioFormat::BigEndian)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_BE);
+            } else if(format.sampleType() == QAudioFormat::UnSignedInt) {
+                if(format.byteOrder() == QAudioFormat::LittleEndian)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_LE);
+                else if(format.byteOrder() == QAudioFormat::BigEndian)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_BE);
+            }
+            break;
+        case 32:
+            if(format.sampleType() == QAudioFormat::SignedInt) {
+                if(format.byteOrder() == QAudioFormat::LittleEndian)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_LE);
+                else if(format.byteOrder() == QAudioFormat::BigEndian)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_BE);
+            } else if(format.sampleType() == QAudioFormat::UnSignedInt) {
+                if(format.byteOrder() == QAudioFormat::LittleEndian)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_LE);
+                else if(format.byteOrder() == QAudioFormat::BigEndian)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_BE);
+            }
+    }
+
+    // For now, just accept only audio/pcm codec
+    if(!format.codec().startsWith(QLatin1String("audio/pcm"))) {
+        err=-1;
+    } else
+        testCodec = true;
+
+    if(err>=0 && format.channels() != -1) {
+        err = snd_pcm_hw_params_test_channels(handle,params,format.channels());
+        if(err>=0)
+            err = snd_pcm_hw_params_set_channels(handle,params,format.channels());
+        if(err>=0)
+            testChannel = true;
+    }
+
+    if(err>=0 && format.frequency() != -1) {
+        err = snd_pcm_hw_params_test_rate(handle,params,format.frequency(),0);
+        if(err>=0)
+            err = snd_pcm_hw_params_set_rate(handle,params,format.frequency(),dir);
+        if(err>=0)
+            testFreq = true;
+    }
+
+    if((err>=0 && format.sampleSize() != -1) &&
+            (format.sampleType() != QAudioFormat::Unknown)) {
+        switch(format.sampleSize()) {
+            case 8:
+                if(format.sampleType() == QAudioFormat::SignedInt)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S8);
+                else if(format.sampleType() == QAudioFormat::UnSignedInt)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U8);
+                break;
+            case 16:
+                if(format.sampleType() == QAudioFormat::SignedInt) {
+                    if(format.byteOrder() == QAudioFormat::LittleEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_LE);
+                    else if(format.byteOrder() == QAudioFormat::BigEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_BE);
+                } else if(format.sampleType() == QAudioFormat::UnSignedInt) {
+                    if(format.byteOrder() == QAudioFormat::LittleEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_LE);
+                    else if(format.byteOrder() == QAudioFormat::BigEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_BE);
+                }
+                break;
+            case 32:
+                if(format.sampleType() == QAudioFormat::SignedInt) {
+                    if(format.byteOrder() == QAudioFormat::LittleEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_LE);
+                    else if(format.byteOrder() == QAudioFormat::BigEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_BE);
+                } else if(format.sampleType() == QAudioFormat::UnSignedInt) {
+                    if(format.byteOrder() == QAudioFormat::LittleEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_LE);
+                    else if(format.byteOrder() == QAudioFormat::BigEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_BE);
+                }
+        }
+        if(err>=0) {
+            testSize = true;
+            testType = true;
+        }
+    }
+    if(err>=0)
+        err = snd_pcm_hw_params(handle, params);
+
+    if(err == 0) {
+        // settings work
+        // close()
+        if(handle)
+            snd_pcm_close(handle);
+        return true;
+    }
+    if(handle)
+        snd_pcm_close(handle);
+
+    return false;
+}
+
+void QAudioDeviceInfoInternal::updateLists()
+{
+    // redo all lists based on current settings
+    freqz.clear();
+    channelz.clear();
+    sizez.clear();
+    byteOrderz.clear();
+    typez.clear();
+    codecz.clear();
+
+    if(!handle)
+        open();
+
+    if(!handle)
+        return;
+
+    for(int i=0; i<(int)MAX_SAMPLE_RATES; i++) {
+        //if(snd_pcm_hw_params_test_rate(handle, params, SAMPLE_RATES[i], dir) == 0)
+        freqz.append(SAMPLE_RATES[i]);
+    }
+    channelz.append(1);
+    channelz.append(2);
+    if (surround40) channelz.append(4);
+    if (surround51) channelz.append(6);
+    if (surround71) channelz.append(8);
+    sizez.append(8);
+    sizez.append(16);
+    sizez.append(32);
+    byteOrderz.append(QAudioFormat::LittleEndian);
+    byteOrderz.append(QAudioFormat::BigEndian);
+    typez.append(QAudioFormat::SignedInt);
+    typez.append(QAudioFormat::UnSignedInt);
+    typez.append(QAudioFormat::Float);
+    codecz.append(QLatin1String("audio/pcm"));
+    close();
+}
+
+QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode)
+{
+    QList<QByteArray> allDevices;
+    QList<QByteArray> devices;
+    QByteArray filter;
+
+#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
+    // Create a list of all current audio devices that support mode
+    void **hints, **n;
+    char *name, *descr, *io;
+
+    if(snd_device_name_hint(-1, "pcm", &hints) < 0) {
+        qWarning() << "no alsa devices available";
+        return devices;
+    }
+    n = hints;
+
+    if(mode == QAudio::AudioInput) {
+        filter = "Input";
+    } else {
+        filter = "Output";
+    }
+
+    while (*n != NULL) {
+        name = snd_device_name_get_hint(*n, "NAME");
+        if (name != 0 && qstrcmp(name, "null") != 0) {
+            descr = snd_device_name_get_hint(*n, "DESC");
+            io = snd_device_name_get_hint(*n, "IOID");
+
+            if ((descr != NULL) && ((io == NULL) || (io == filter))) {
+                QString deviceName = QLatin1String(name);
+                QString deviceDescription = QLatin1String(descr);
+                allDevices.append(deviceName.toLocal8Bit().constData());
+                if (deviceDescription.contains(QLatin1String("Default Audio Device")))
+                    devices.append(deviceName.toLocal8Bit().constData());
+            }
+
+            free(name);
+            if (descr != NULL)
+                free(descr);
+            if (io != NULL)
+                free(io);
+        }
+        ++n;
+    }
+    snd_device_name_free_hint(hints);
+
+    if(devices.size() > 0) {
+        devices.append("default");
+    }
+#else
+    int idx = 0;
+    char* name;
+
+    while(snd_card_get_name(idx,&name) == 0) {
+        devices.append(name);
+        idx++;
+    }
+    if (idx > 0)
+        devices.append("default");
+#endif
+#if (!defined(Q_WS_MAEMO_5) && !defined(Q_WS_MAEMO_6))
+    if (devices.size() == 0 && allDevices.size() > 0)
+        return allDevices;
+#endif
+
+    return devices;
+}
+
+QByteArray QAudioDeviceInfoInternal::defaultInputDevice()
+{
+    QList<QByteArray> devices = availableDevices(QAudio::AudioInput);
+    if(devices.size() == 0)
+        return QByteArray();
+
+    return devices.first();
+}
+
+QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()
+{
+    QList<QByteArray> devices = availableDevices(QAudio::AudioOutput);
+    if(devices.size() == 0)
+        return QByteArray();
+
+    return devices.first();
+}
+
+void QAudioDeviceInfoInternal::checkSurround()
+{
+    QList<QByteArray> devices;
+    surround40 = false;
+    surround51 = false;
+    surround71 = false;
+
+    void **hints, **n;
+    char *name, *descr, *io;
+
+    if(snd_device_name_hint(-1, "pcm", &hints) < 0)
+        return;
+
+    n = hints;
+
+    while (*n != NULL) {
+        name = snd_device_name_get_hint(*n, "NAME");
+        descr = snd_device_name_get_hint(*n, "DESC");
+        io = snd_device_name_get_hint(*n, "IOID");
+        if((name != NULL) && (descr != NULL)) {
+            QString deviceName = QLatin1String(name);
+            if (mode == QAudio::AudioOutput) {
+                if(deviceName.contains(QLatin1String("surround40")))
+                    surround40 = true;
+                if(deviceName.contains(QLatin1String("surround51")))
+                    surround51 = true;
+                if(deviceName.contains(QLatin1String("surround71")))
+                    surround71 = true;
+            }
+        }
+        if(name != NULL)
+            free(name);
+        if(descr != NULL)
+            free(descr);
+        if(io != NULL)
+            free(io);
+        ++n;
+    }
+    snd_device_name_free_hint(hints);
+}
+
+QT_END_NAMESPACE
diff --git a/src/multimediakit/audio/qaudiodeviceinfo_alsa_p.h b/src/multimediakit/audio/qaudiodeviceinfo_alsa_p.h
new file mode 100644
index 000000000..02a633bea
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo_alsa_p.h
@@ -0,0 +1,121 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIODEVICEINFOALSA_H
+#define QAUDIODEVICEINFOALSA_H
+
+#include <alsa/asoundlib.h>
+
+#include <QtCore/qbytearray.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qlist.h>
+#include <QtCore/qdebug.h>
+
+#include "qaudio.h"
+#include "qaudiodeviceinfo.h"
+#include "qaudiosystem.h"
+
+QT_BEGIN_NAMESPACE
+
+const unsigned int MAX_SAMPLE_RATES = 5;
+const unsigned int SAMPLE_RATES[] =
+    { 8000, 11025, 22050, 44100, 48000 };
+
+class QAudioDeviceInfoInternal : public QAbstractAudioDeviceInfo
+{
+    Q_OBJECT
+public:
+    QAudioDeviceInfoInternal(QByteArray dev,QAudio::Mode mode);
+    ~QAudioDeviceInfoInternal();
+
+    bool testSettings(const QAudioFormat& format) const;
+    void updateLists();
+    QAudioFormat preferredFormat() const;
+    bool isFormatSupported(const QAudioFormat& format) const;
+    QString deviceName() const;
+    QStringList supportedCodecs();
+    QList<int> supportedSampleRates();
+    QList<int> supportedChannelCounts();
+    QList<int> supportedSampleSizes();
+    QList<QAudioFormat::Endian> supportedByteOrders();
+    QList<QAudioFormat::SampleType> supportedSampleTypes();
+    static QByteArray defaultInputDevice();
+    static QByteArray defaultOutputDevice();
+    static QList<QByteArray> availableDevices(QAudio::Mode);
+
+private:
+    bool open();
+    void close();
+
+    void checkSurround();
+    bool surround40;
+    bool surround51;
+    bool surround71;
+
+    QString device;
+    QAudio::Mode mode;
+    QAudioFormat nearest;
+    QList<int> freqz;
+    QList<int> channelz;
+    QList<int> sizez;
+    QList<QAudioFormat::Endian> byteOrderz;
+    QStringList codecz;
+    QList<QAudioFormat::SampleType> typez;
+    snd_pcm_t* handle;
+    snd_pcm_hw_params_t *params;
+};
+
+QT_END_NAMESPACE
+
+#endif
+
diff --git a/src/multimediakit/audio/qaudiodeviceinfo_mac_p.cpp b/src/multimediakit/audio/qaudiodeviceinfo_mac_p.cpp
new file mode 100644
index 000000000..ee6660c6e
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo_mac_p.cpp
@@ -0,0 +1,351 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// INTERNAL USE ONLY: Do NOT use for any other purpose.
+//
+
+#include <QtCore/qstringlist.h>
+#include <QtCore/qlist.h>
+#include <QtCore/qbytearray.h>
+#include <QtCore/qdatastream.h>
+#include <QtCore/qdebug.h>
+
+#include <qaudiodeviceinfo.h>
+#include "qaudio_mac_p.h"
+#include "qaudiodeviceinfo_mac_p.h"
+
+
+
+QT_BEGIN_NAMESPACE
+
+// XXX: remove at some future date
+static inline QString cfStringToQString(CFStringRef str)
+{
+    CFIndex length = CFStringGetLength(str);
+    const UniChar *chars = CFStringGetCharactersPtr(str);
+    if (chars)
+        return QString(reinterpret_cast<const QChar *>(chars), length);
+
+    UniChar buffer[length];
+    CFStringGetCharacters(str, CFRangeMake(0, length), buffer);
+    return QString(reinterpret_cast<const QChar *>(buffer), length);
+}
+
+QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray const& handle, QAudio::Mode)
+{
+    QDataStream ds(handle);
+    quint32 did, tm;
+
+    ds >> did >> tm >> name;
+    deviceId = AudioDeviceID(did);
+    mode = QAudio::Mode(tm);
+}
+
+bool QAudioDeviceInfoInternal::isFormatSupported(const QAudioFormat& format) const
+{
+    QAudioDeviceInfoInternal *self = const_cast<QAudioDeviceInfoInternal*>(this);
+
+    return format.isValid()
+            && format.codec() == QString::fromLatin1("audio/pcm")
+            && self->supportedSampleRates().contains(format.sampleRate())
+            && self->supportedChannelCounts().contains(format.channelCount())
+            && self->supportedSampleSizes().contains(format.sampleSize());
+}
+
+QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const
+{
+    QAudioFormat    rc;
+
+    UInt32  propSize = 0;
+
+    if (AudioDeviceGetPropertyInfo(deviceId,
+                                    0,
+                                    mode == QAudio::AudioInput,
+                                    kAudioDevicePropertyStreams,
+                                    &propSize,
+                                    0) == noErr) {
+
+        const int sc = propSize / sizeof(AudioStreamID);
+
+        if (sc > 0) {
+            AudioStreamID*  streams = new AudioStreamID[sc];
+
+            if (AudioDeviceGetProperty(deviceId,
+                                        0,
+                                        mode == QAudio::AudioInput,
+                                        kAudioDevicePropertyStreams,
+                                        &propSize,
+                                        streams) == noErr) {
+
+                for (int i = 0; i < sc; ++i) {
+                    if (AudioStreamGetPropertyInfo(streams[i],
+                                                    0,
+                                                    kAudioStreamPropertyPhysicalFormat,
+                                                    &propSize,
+                                                    0) == noErr) {
+
+                        AudioStreamBasicDescription sf;
+
+                        if (AudioStreamGetProperty(streams[i],
+                                                    0,
+                                                    kAudioStreamPropertyPhysicalFormat,
+                                                    &propSize,
+                                                    &sf) == noErr) {
+                            rc = toQAudioFormat(sf);
+                            break;
+                        }
+                    }
+                }
+            }
+
+            delete streams;
+        }
+    }
+
+    return rc;
+}
+
+QString QAudioDeviceInfoInternal::deviceName() const
+{
+    return name;
+}
+
+QStringList QAudioDeviceInfoInternal::supportedCodecs()
+{
+    return QStringList() << QString::fromLatin1("audio/pcm");
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedSampleRates()
+{
+    QSet<int>  rc;
+
+    // Add some common frequencies
+    rc << 8000 << 11025 << 22050 << 44100;
+
+    //
+    UInt32  propSize = 0;
+
+    if (AudioDeviceGetPropertyInfo(deviceId,
+                                    0,
+                                    mode == QAudio::AudioInput,
+                                    kAudioDevicePropertyAvailableNominalSampleRates,
+                                    &propSize,
+                                    0) == noErr) {
+
+        const int pc = propSize / sizeof(AudioValueRange);
+
+        if (pc > 0) {
+            AudioValueRange*    vr = new AudioValueRange[pc];
+
+            if (AudioDeviceGetProperty(deviceId,
+                                        0,
+                                        mode == QAudio::AudioInput,
+                                        kAudioDevicePropertyAvailableNominalSampleRates,
+                                        &propSize,
+                                        vr) == noErr) {
+
+                for (int i = 0; i < pc; ++i)
+                    rc << vr[i].mMaximum;
+            }
+
+            delete vr;
+        }
+    }
+
+    return rc.toList();
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedChannelCounts()
+{
+    QList<int>  rc;
+
+    // Can mix down to 1 channel
+    rc << 1;
+
+    UInt32  propSize = 0;
+    int     channels = 0;
+
+    if (AudioDeviceGetPropertyInfo(deviceId, 
+                                    0,
+                                    mode == QAudio::AudioInput,
+                                    kAudioDevicePropertyStreamConfiguration,
+                                    &propSize, 
+                                    0) == noErr) {
+
+        AudioBufferList* audioBufferList = static_cast<AudioBufferList*>(qMalloc(propSize));
+
+        if (audioBufferList != 0) {
+            if (AudioDeviceGetProperty(deviceId, 
+                                        0,
+                                        mode == QAudio::AudioInput,
+                                        kAudioDevicePropertyStreamConfiguration,
+                                        &propSize,
+                                        audioBufferList) == noErr) {
+
+                for (int i = 0; i < int(audioBufferList->mNumberBuffers); ++i) {
+                    channels += audioBufferList->mBuffers[i].mNumberChannels;
+                    rc << channels;
+                }
+            }
+
+            qFree(audioBufferList);
+        }
+    }
+
+    return rc;
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedSampleSizes()
+{
+    return QList<int>() << 8 << 16 << 24 << 32 << 64;
+}
+
+QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::supportedByteOrders()
+{
+    return QList<QAudioFormat::Endian>() << QAudioFormat::LittleEndian << QAudioFormat::BigEndian;
+}
+
+QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::supportedSampleTypes()
+{
+    return QList<QAudioFormat::SampleType>() << QAudioFormat::SignedInt << QAudioFormat::UnSignedInt << QAudioFormat::Float;
+}
+
+static QByteArray get_device_info(AudioDeviceID audioDevice, QAudio::Mode mode)
+{
+    UInt32      size;
+    QByteArray  device;
+    QDataStream ds(&device, QIODevice::WriteOnly);
+    AudioStreamBasicDescription     sf;
+    CFStringRef name;
+    Boolean     isInput = mode == QAudio::AudioInput;
+
+    // Id
+    ds << quint32(audioDevice);
+
+    // Mode
+    size = sizeof(AudioStreamBasicDescription);
+    if (AudioDeviceGetProperty(audioDevice, 0, isInput, kAudioDevicePropertyStreamFormat,
+                                &size, &sf) != noErr) {
+        return QByteArray();
+    }
+    ds << quint32(mode);
+
+    // Name
+    size = sizeof(CFStringRef);
+    if (AudioDeviceGetProperty(audioDevice, 0, isInput, kAudioObjectPropertyName,
+                                &size, &name) != noErr) {
+        qWarning() << "QAudioDeviceInfo: Unable to find device name";
+        return QByteArray();
+    }
+    ds << cfStringToQString(name);
+
+    CFRelease(name);
+
+    return device;
+}
+
+QByteArray QAudioDeviceInfoInternal::defaultInputDevice()
+{
+    AudioDeviceID   audioDevice;
+    UInt32          size = sizeof(audioDevice);
+
+    if (AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &size,
+                                    &audioDevice) != noErr) {
+        qWarning() << "QAudioDeviceInfo: Unable to find default input device";
+        return QByteArray();
+    }
+
+    return get_device_info(audioDevice, QAudio::AudioInput);
+}
+
+QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()
+{
+    AudioDeviceID audioDevice;
+    UInt32        size = sizeof(audioDevice);
+
+    if (AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &size,
+                                    &audioDevice) != noErr) {
+        qWarning() << "QAudioDeviceInfo: Unable to find default output device";
+        return QByteArray();
+    }
+
+    return get_device_info(audioDevice, QAudio::AudioOutput);
+}
+
+QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode)
+{
+    QList<QByteArray>   devices;
+
+    UInt32  propSize = 0;
+
+    if (AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &propSize, 0) == noErr) {
+
+        const int dc = propSize / sizeof(AudioDeviceID);
+
+        if (dc > 0) {
+            AudioDeviceID*  audioDevices = new AudioDeviceID[dc];
+
+            if (AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &propSize, audioDevices) == noErr) {
+                for (int i = 0; i < dc; ++i) {
+                    QByteArray info = get_device_info(audioDevices[i], mode);
+                    if (!info.isNull())
+                        devices << info;
+                }
+            }
+
+            delete audioDevices;
+        }
+    }
+
+    return devices;
+}
+
+
+QT_END_NAMESPACE
+
diff --git a/src/multimediakit/audio/qaudiodeviceinfo_mac_p.h b/src/multimediakit/audio/qaudiodeviceinfo_mac_p.h
new file mode 100644
index 000000000..5cd5deae3
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo_mac_p.h
@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QDEVICEINFO_MAC_P_H
+#define QDEVICEINFO_MAC_P_H
+
+#include <CoreAudio/CoreAudio.h>
+
+#include <qaudiosystem.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QAudioDeviceInfoInternal : public QAbstractAudioDeviceInfo
+{
+public:
+    AudioDeviceID   deviceId;
+    QString         name;
+    QAudio::Mode   mode;
+
+    QAudioDeviceInfoInternal(QByteArray const& handle, QAudio::Mode mode);
+
+    bool isFormatSupported(const QAudioFormat& format) const;
+    QAudioFormat preferredFormat() const;
+
+    QString deviceName() const;
+
+    QStringList supportedCodecs();
+    QList<int> supportedSampleRates();
+    QList<int> supportedChannelCounts();
+    QList<int> supportedSampleSizes();
+    QList<QAudioFormat::Endian> supportedByteOrders();
+    QList<QAudioFormat::SampleType> supportedSampleTypes();
+
+    static QByteArray defaultInputDevice();
+    static QByteArray defaultOutputDevice();
+
+    static QList<QByteArray> availableDevices(QAudio::Mode mode);
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif  // QDEVICEINFO_MAC_P_H
diff --git a/src/multimediakit/audio/qaudiodeviceinfo_symbian_p.cpp b/src/multimediakit/audio/qaudiodeviceinfo_symbian_p.cpp
new file mode 100644
index 000000000..a4cec57ed
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo_symbian_p.cpp
@@ -0,0 +1,235 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/QCoreApplication>
+#include "qaudiodeviceinfo_symbian_p.h"
+#include "qaudio_symbian_p.h"
+
+QT_BEGIN_NAMESPACE
+
+QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray device,
+                                               QAudio::Mode mode)
+    :   m_deviceName(QLatin1String(device))
+    ,   m_mode(mode)
+    ,   m_updated(false)
+{
+
+}
+
+QAudioDeviceInfoInternal::~QAudioDeviceInfoInternal()
+{
+
+}
+
+QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const
+{
+    QAudioFormat format;
+    switch (m_mode) {
+    case QAudio::AudioOutput:
+        format.setFrequency(44100);
+        format.setChannels(2);
+        format.setSampleSize(16);
+        format.setByteOrder(QAudioFormat::LittleEndian);
+        format.setSampleType(QAudioFormat::SignedInt);
+        format.setCodec(QLatin1String("audio/pcm"));
+        break;
+
+    case QAudio::AudioInput:
+        format.setFrequency(8000);
+        format.setChannels(1);
+        format.setSampleSize(16);
+        format.setByteOrder(QAudioFormat::LittleEndian);
+        format.setSampleType(QAudioFormat::SignedInt);
+        format.setCodec(QLatin1String("audio/pcm"));
+        break;
+
+    default:
+        Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid mode");
+    }
+
+    if (!isFormatSupported(format)) {
+        format = QAudioFormat();
+        format.setCodec(QLatin1String("audio/pcm"));
+        if (m_capabilities.contains(format.codec())) {
+            const Capabilities &codecCaps = m_capabilities[format.codec()];
+            if (codecCaps.m_frequencies.size())
+                format.setFrequency(codecCaps.m_frequencies[0]);
+            if (codecCaps.m_channels.size())
+                format.setChannels(codecCaps.m_channels[0]);
+            if (codecCaps.m_sampleSizes.size())
+                format.setSampleSize(codecCaps.m_sampleSizes[0]);
+            if (codecCaps.m_byteOrders.size())
+                format.setByteOrder(codecCaps.m_byteOrders[0]);
+            if (codecCaps.m_sampleTypes.size())
+                format.setSampleType(codecCaps.m_sampleTypes[0]);
+        }
+    }
+
+    return format;
+}
+
+bool QAudioDeviceInfoInternal::isFormatSupported(
+                                 const QAudioFormat &format) const
+{
+    getSupportedFormats();
+    bool supported = false;
+    if (m_capabilities.contains(format.codec())) {
+        const Capabilities &codecCaps = m_capabilities[format.codec()];
+        supported = codecCaps.m_frequencies.contains(format.frequency())
+                &&  codecCaps.m_channels.contains(format.channels())
+                &&  codecCaps.m_sampleSizes.contains(format.sampleSize())
+                &&  codecCaps.m_byteOrders.contains(format.byteOrder())
+                &&  codecCaps.m_sampleTypes.contains(format.sampleType());
+    }
+    return supported;
+}
+
+QString QAudioDeviceInfoInternal::deviceName() const
+{
+    return m_deviceName;
+}
+
+QStringList QAudioDeviceInfoInternal::supportedCodecs()
+{
+    getSupportedFormats();
+    return m_capabilities.keys();
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedSampleRates()
+{
+    getSupportedFormats();
+    return m_unionCapabilities.m_frequencies;
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedChannelCounts()
+{
+    getSupportedFormats();
+    return m_unionCapabilities.m_channels;
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedSampleSizes()
+{
+    getSupportedFormats();
+    return m_unionCapabilities.m_sampleSizes;
+}
+
+QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::supportedByteOrders()
+{
+    getSupportedFormats();
+    return m_unionCapabilities.m_byteOrders;
+}
+
+QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::supportedSampleTypes()
+{
+    getSupportedFormats();
+    return m_unionCapabilities. m_sampleTypes;
+}
+
+QByteArray QAudioDeviceInfoInternal::defaultInputDevice()
+{
+    return QByteArray("default");
+}
+
+QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()
+{
+    return QByteArray("default");
+}
+
+QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode)
+{
+    QList<QByteArray> result;
+    result += QByteArray("default");
+    return result;
+}
+
+void QAudioDeviceInfoInternal::devsoundInitializeComplete(int err)
+{
+    m_intializationResult = err;
+    m_initializing = false;
+}
+
+// Helper function
+template<typename T>
+void appendUnique(QList<T> &left, const QList<T> &right)
+{
+    foreach (const T &value, right)
+        if (!left.contains(value))
+            left += value;
+}
+
+void QAudioDeviceInfoInternal::getSupportedFormats() const
+{
+    if (!m_updated) {
+        QScopedPointer<SymbianAudio::DevSoundWrapper> devsound(new SymbianAudio::DevSoundWrapper(m_mode));
+        connect(devsound.data(), SIGNAL(initializeComplete(int)),
+                this, SLOT(devsoundInitializeComplete(int)));
+
+        foreach (const QString& codec, devsound->supportedCodecs()) {
+            m_initializing = true;
+            devsound->initialize(codec);
+            while (m_initializing)
+                QCoreApplication::instance()->processEvents(QEventLoop::WaitForMoreEvents);
+            if (KErrNone == m_intializationResult) {
+                m_capabilities[codec].m_frequencies = devsound->supportedFrequencies();
+                appendUnique(m_unionCapabilities.m_frequencies, devsound->supportedFrequencies());
+
+                m_capabilities[codec].m_channels = devsound->supportedChannels();
+                appendUnique(m_unionCapabilities.m_channels, devsound->supportedChannels());
+
+                m_capabilities[codec].m_sampleSizes = devsound->supportedSampleSizes();
+                appendUnique(m_unionCapabilities.m_sampleSizes, devsound->supportedSampleSizes());
+
+                m_capabilities[codec].m_byteOrders = devsound->supportedByteOrders();
+                appendUnique(m_unionCapabilities.m_byteOrders, devsound->supportedByteOrders());
+
+                m_capabilities[codec].m_sampleTypes = devsound->supportedSampleTypes();
+                appendUnique(m_unionCapabilities.m_sampleTypes, devsound->supportedSampleTypes());
+            }
+        }
+
+        m_updated = true;
+    }
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qaudiodeviceinfo_symbian_p.cpp"
+
diff --git a/src/multimediakit/audio/qaudiodeviceinfo_symbian_p.h b/src/multimediakit/audio/qaudiodeviceinfo_symbian_p.h
new file mode 100644
index 000000000..487afd50e
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo_symbian_p.h
@@ -0,0 +1,116 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIODEVICEINFO_SYMBIAN_P_H
+#define QAUDIODEVICEINFO_SYMBIAN_P_H
+
+#include <QtCore/QMap>
+#include <qaudiosystem.h>
+#include <sounddevice.h>
+
+QT_BEGIN_NAMESPACE
+
+class QAudioDeviceInfoInternal
+    :   public QAbstractAudioDeviceInfo
+{
+    Q_OBJECT
+
+public:
+    QAudioDeviceInfoInternal(QByteArray device, QAudio::Mode mode);
+    ~QAudioDeviceInfoInternal();
+
+    // QAbstractAudioDeviceInfo
+    QAudioFormat preferredFormat() const;
+    bool isFormatSupported(const QAudioFormat &format) const;
+    QString deviceName() const;
+    QStringList supportedCodecs();
+    QList<int> supportedSampleRates();
+    QList<int> supportedChannelCounts();
+    QList<int> supportedSampleSizes();
+    QList<QAudioFormat::Endian> supportedByteOrders();
+    QList<QAudioFormat::SampleType> supportedSampleTypes();
+    static QByteArray defaultInputDevice();
+    static QByteArray defaultOutputDevice();
+    static QList<QByteArray> availableDevices(QAudio::Mode);
+
+private slots:
+    void devsoundInitializeComplete(int err);
+
+private:
+    void getSupportedFormats() const;
+
+private:
+    mutable bool m_initializing;
+    int m_intializationResult;
+
+    QString m_deviceName;
+    QAudio::Mode m_mode;
+
+    struct Capabilities
+    {
+        QList<int> m_frequencies;
+        QList<int> m_channels;
+        QList<int> m_sampleSizes;
+        QList<QAudioFormat::Endian> m_byteOrders;
+        QList<QAudioFormat::SampleType> m_sampleTypes;
+    };
+
+    // Mutable to allow lazy initialization when called from const-qualified
+    // public functions (isFormatSupported, nearestFormat)
+    mutable bool m_updated;
+    mutable QMap<QString, Capabilities> m_capabilities;
+    mutable Capabilities m_unionCapabilities;
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimediakit/audio/qaudiodeviceinfo_win32_p.cpp b/src/multimediakit/audio/qaudiodeviceinfo_win32_p.cpp
new file mode 100644
index 000000000..0f29bf5bc
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo_win32_p.cpp
@@ -0,0 +1,471 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// INTERNAL USE ONLY: Do NOT use for any other purpose.
+//
+
+
+#include <windows.h>
+#include <mmsystem.h>
+#include "qaudiodeviceinfo_win32_p.h"
+#include <dshow.h>
+
+#if defined(Q_CC_MINGW)
+
+extern GUID CLSID_AudioInputDeviceCategory;
+
+#ifndef __IErrorLog_INTERFACE_DEFINED__
+#define __IErrorLog_INTERFACE_DEFINED__
+
+DECLARE_INTERFACE_(IErrorLog, IUnknown)
+{
+    STDMETHOD(AddError)(THIS_ LPCOLESTR, EXCEPINFO *) PURE;
+};
+
+#endif /* __IErrorLog_INTERFACE_DEFINED__ */
+
+#ifndef __IPropertyBag_INTERFACE_DEFINED__
+#define __IPropertyBag_INTERFACE_DEFINED__
+
+const GUID IID_IPropertyBag = {0x55272A00, 0x42CB, 0x11CE, {0x81, 0x35, 0x00, 0xAA, 0x00, 0x4B, 0xB8, 0x51}};
+
+DECLARE_INTERFACE_(IPropertyBag, IUnknown)
+{
+    STDMETHOD(Read)(THIS_ LPCOLESTR, VARIANT *, IErrorLog *) PURE;
+    STDMETHOD(Write)(THIS_ LPCOLESTR, VARIANT *) PURE;
+};
+
+#endif /* __IPropertyBag_INTERFACE_DEFINED__ */
+
+#endif//Q_CC_MINGW
+
+QT_BEGIN_NAMESPACE
+
+// For mingw toolchain mmsystem.h only defines half the defines, so add if needed.
+#ifndef WAVE_FORMAT_44M08
+#define WAVE_FORMAT_44M08 0x00000100
+#define WAVE_FORMAT_44S08 0x00000200
+#define WAVE_FORMAT_44M16 0x00000400
+#define WAVE_FORMAT_44S16 0x00000800
+#define WAVE_FORMAT_48M08 0x00001000
+#define WAVE_FORMAT_48S08 0x00002000
+#define WAVE_FORMAT_48M16 0x00004000
+#define WAVE_FORMAT_48S16 0x00008000
+#define WAVE_FORMAT_96M08 0x00010000
+#define WAVE_FORMAT_96S08 0x00020000
+#define WAVE_FORMAT_96M16 0x00040000
+#define WAVE_FORMAT_96S16 0x00080000
+#endif
+
+
+QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray dev, QAudio::Mode mode)
+{
+    QDataStream ds(&dev, QIODevice::ReadOnly);
+    ds >> devId >> device;
+    this->mode = mode;
+
+    updateLists();
+}
+
+QAudioDeviceInfoInternal::~QAudioDeviceInfoInternal()
+{
+    close();
+}
+
+bool QAudioDeviceInfoInternal::isFormatSupported(const QAudioFormat& format) const
+{
+    return testSettings(format);
+}
+
+QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const
+{
+    QAudioFormat nearest;
+    if(mode == QAudio::AudioOutput) {
+        nearest.setFrequency(44100);
+        nearest.setChannelCount(2);
+        nearest.setByteOrder(QAudioFormat::LittleEndian);
+        nearest.setSampleType(QAudioFormat::SignedInt);
+        nearest.setSampleSize(16);
+        nearest.setCodec(QLatin1String("audio/pcm"));
+    } else {
+        nearest.setFrequency(11025);
+        nearest.setChannelCount(1);
+        nearest.setByteOrder(QAudioFormat::LittleEndian);
+        nearest.setSampleType(QAudioFormat::SignedInt);
+        nearest.setSampleSize(8);
+        nearest.setCodec(QLatin1String("audio/pcm"));
+    }
+    return nearest;
+}
+
+QString QAudioDeviceInfoInternal::deviceName() const
+{
+    return device;
+}
+
+QStringList QAudioDeviceInfoInternal::supportedCodecs()
+{
+    updateLists();
+    return codecz;
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedSampleRates()
+{
+    updateLists();
+    return freqz;
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedChannelCounts()
+{
+    updateLists();
+    return channelz;
+}
+
+QList<int> QAudioDeviceInfoInternal::supportedSampleSizes()
+{
+    updateLists();
+    return sizez;
+}
+
+QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::supportedByteOrders()
+{
+    updateLists();
+    return byteOrderz;
+}
+
+QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::supportedSampleTypes()
+{
+    updateLists();
+    return typez;
+}
+
+
+bool QAudioDeviceInfoInternal::open()
+{
+    return true;
+}
+
+void QAudioDeviceInfoInternal::close()
+{
+}
+
+bool QAudioDeviceInfoInternal::testSettings(const QAudioFormat& format) const
+{
+    // Set nearest to closest settings that do work.
+    // See if what is in settings will work (return value).
+
+    bool failed = false;
+    bool match = false;
+
+    // check codec
+    for( int i = 0; i < codecz.count(); i++) {
+        if (format.codec() == codecz.at(i))
+            match = true;
+    }
+    if (!match) failed = true;
+
+    // check channel
+    match = false;
+    if (!failed) {
+        for( int i = 0; i < channelz.count(); i++) {
+            if (format.channels() == channelz.at(i)) {
+                match = true;
+                break;
+            }
+        }
+        if (!match)
+            failed = true;
+    }
+
+    // check frequency
+    match = false;
+    if (!failed) {
+        for( int i = 0; i < freqz.count(); i++) {
+            if (format.frequency() == freqz.at(i)) {
+                match = true;
+                break;
+            }
+        }
+        if (!match)
+            failed = true;
+    }
+
+    // check sample size
+    match = false;
+    if (!failed) {
+        for( int i = 0; i < sizez.count(); i++) {
+            if (format.sampleSize() == sizez.at(i)) {
+                match = true;
+                break;
+            }
+        }
+        if (!match)
+            failed = true;
+    }
+
+    // check byte order
+    match = false;
+    if (!failed) {
+        for( int i = 0; i < byteOrderz.count(); i++) {
+            if (format.byteOrder() == byteOrderz.at(i)) {
+                match = true;
+                break;
+            }
+        }
+        if (!match)
+            failed = true;
+    }
+
+    // check sample type
+    match = false;
+    if (!failed) {
+        for( int i = 0; i < typez.count(); i++) {
+            if (format.sampleType() == typez.at(i)) {
+                match = true;
+                break;
+            }
+        }
+        if (!match)
+            failed = true;
+    }
+
+    if(!failed) {
+        // settings work
+        return true;
+    }
+    return false;
+}
+
+void QAudioDeviceInfoInternal::updateLists()
+{
+    // redo all lists based on current settings
+    bool match = false;
+    DWORD fmt = NULL;
+
+    if(mode == QAudio::AudioOutput) {
+        WAVEOUTCAPS woc;
+        if (waveOutGetDevCaps(devId, &woc, sizeof(WAVEOUTCAPS)) == MMSYSERR_NOERROR) {
+            match = true;
+            fmt = woc.dwFormats;
+        }
+    } else {
+        WAVEINCAPS woc;
+        if (waveInGetDevCaps(devId, &woc, sizeof(WAVEINCAPS)) == MMSYSERR_NOERROR) {
+            match = true;
+            fmt = woc.dwFormats;
+        }
+    }
+    sizez.clear();
+    freqz.clear();
+    channelz.clear();
+    byteOrderz.clear();
+    typez.clear();
+    codecz.clear();
+
+    if(match) {
+        if((fmt && WAVE_FORMAT_1M08)
+           || (fmt && WAVE_FORMAT_1S08)
+	   || (fmt && WAVE_FORMAT_2M08)
+	   || (fmt && WAVE_FORMAT_2S08)
+	   || (fmt && WAVE_FORMAT_4M08)
+	   || (fmt && WAVE_FORMAT_4S08)
+#ifndef Q_OS_WINCE
+	   || (fmt && WAVE_FORMAT_48M08)
+	   || (fmt && WAVE_FORMAT_48S08)
+	   || (fmt && WAVE_FORMAT_96M08)
+	   || (fmt && WAVE_FORMAT_96S08)
+#endif
+       ) {
+            sizez.append(8);
+	}
+        if((fmt && WAVE_FORMAT_1M16)
+           || (fmt && WAVE_FORMAT_1S16)
+	   || (fmt && WAVE_FORMAT_2M16)
+	   || (fmt && WAVE_FORMAT_2S16)
+	   || (fmt && WAVE_FORMAT_4M16)
+	   || (fmt && WAVE_FORMAT_4S16)
+#ifndef Q_OS_WINCE
+	   || (fmt && WAVE_FORMAT_48M16)
+	   || (fmt && WAVE_FORMAT_48S16)
+	   || (fmt && WAVE_FORMAT_96M16)
+	   || (fmt && WAVE_FORMAT_96S16)
+#endif
+       ) {
+            sizez.append(16);
+	}
+        if((fmt && WAVE_FORMAT_1M08)
+           || (fmt && WAVE_FORMAT_1S08)
+	   || (fmt && WAVE_FORMAT_1M16)
+	   || (fmt && WAVE_FORMAT_1S16)) {
+            freqz.append(11025);
+	}
+        if((fmt && WAVE_FORMAT_2M08)
+           || (fmt && WAVE_FORMAT_2S08)
+	   || (fmt && WAVE_FORMAT_2M16)
+	   || (fmt && WAVE_FORMAT_2S16)) {
+            freqz.append(22050);
+	}
+        if((fmt && WAVE_FORMAT_4M08)
+           || (fmt && WAVE_FORMAT_4S08)
+	   || (fmt && WAVE_FORMAT_4M16)
+	   || (fmt && WAVE_FORMAT_4S16)) {
+            freqz.append(44100);
+	}
+#ifndef Q_OS_WINCE
+        if((fmt && WAVE_FORMAT_48M08)
+           || (fmt && WAVE_FORMAT_48S08)
+	   || (fmt && WAVE_FORMAT_48M16)
+	   || (fmt && WAVE_FORMAT_48S16)) {
+            freqz.append(48000);
+	}
+        if((fmt && WAVE_FORMAT_96M08)
+           || (fmt && WAVE_FORMAT_96S08)
+	   || (fmt && WAVE_FORMAT_96M16)
+	   || (fmt && WAVE_FORMAT_96S16)) {
+            freqz.append(96000);
+        }
+#endif
+	channelz.append(1);
+	channelz.append(2);
+        if (mode == QAudio::AudioOutput) {
+            channelz.append(4);
+            channelz.append(6);
+            channelz.append(8);
+        }
+
+	byteOrderz.append(QAudioFormat::LittleEndian);
+
+	typez.append(QAudioFormat::SignedInt);
+	typez.append(QAudioFormat::UnSignedInt);
+
+	codecz.append(QLatin1String("audio/pcm"));
+    }
+    if (freqz.count() > 0)
+        freqz.prepend(8000);
+}
+
+QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode)
+{
+    Q_UNUSED(mode)
+
+    QList<QByteArray> devices;
+    //enumerate device fullnames through directshow api
+    CoInitialize(NULL);
+    ICreateDevEnum *pDevEnum = NULL;
+    IEnumMoniker *pEnum = NULL;
+    // Create the System device enumerator
+    HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL,
+                 CLSCTX_INPROC_SERVER, IID_ICreateDevEnum,
+                 reinterpret_cast<void **>(&pDevEnum));
+
+    unsigned long iNumDevs = mode == QAudio::AudioOutput ? waveOutGetNumDevs() : waveInGetNumDevs();
+    if (SUCCEEDED(hr)) {
+        // Create the enumerator for the audio input/output category
+        if (pDevEnum->CreateClassEnumerator(
+             mode == QAudio::AudioOutput ? CLSID_AudioRendererCategory : CLSID_AudioInputDeviceCategory,
+             &pEnum, 0) == S_OK) {
+            pEnum->Reset();
+            // go through and find all audio devices
+            IMoniker *pMoniker = NULL;
+            while (pEnum->Next(1, &pMoniker, NULL) == S_OK) {
+                IPropertyBag *pPropBag;
+                hr = pMoniker->BindToStorage(0,0,IID_IPropertyBag,
+                     reinterpret_cast<void **>(&pPropBag));
+                if (FAILED(hr)) {
+                    pMoniker->Release();
+                    continue; // skip this one
+                }
+                // Find if it is a wave device
+                VARIANT var;
+                VariantInit(&var);
+                hr = pPropBag->Read(mode == QAudio::AudioOutput ? L"WaveOutID" : L"WaveInID", &var, 0);
+                if (SUCCEEDED(hr)) {
+                    LONG waveID = var.lVal;
+                    if (waveID >= 0 && waveID < LONG(iNumDevs)) {
+                        VariantClear(&var);
+                        // Find the description
+                        hr = pPropBag->Read(L"FriendlyName", &var, 0);
+                        if (SUCCEEDED(hr)) {
+                            QByteArray  device;
+                            QDataStream ds(&device, QIODevice::WriteOnly);
+                            ds << quint32(waveID) << QString::fromWCharArray(var.bstrVal);
+                            devices.append(device);
+                        }
+                    }
+                }
+
+                pPropBag->Release();
+                pMoniker->Release();
+            }
+        }
+    }
+    CoUninitialize();
+
+    return devices;
+}
+
+QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()
+{
+    QList<QByteArray> list = availableDevices(QAudio::AudioOutput);
+    if (list.size() > 0)
+        return list.at(0);
+    else
+        return QByteArray();
+}
+
+QByteArray QAudioDeviceInfoInternal::defaultInputDevice()
+{
+    QList<QByteArray> list = availableDevices(QAudio::AudioInput);
+    if (list.size() > 0)
+        return list.at(0);
+    else
+        return QByteArray();
+}
+
+QT_END_NAMESPACE
diff --git a/src/multimediakit/audio/qaudiodeviceinfo_win32_p.h b/src/multimediakit/audio/qaudiodeviceinfo_win32_p.h
new file mode 100644
index 000000000..78f3d7fad
--- /dev/null
+++ b/src/multimediakit/audio/qaudiodeviceinfo_win32_p.h
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIODEVICEINFOWIN_H
+#define QAUDIODEVICEINFOWIN_H
+
+#include <QtCore/qbytearray.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qlist.h>
+#include <QtCore/qdebug.h>
+
+#include <qaudiodeviceinfo.h>
+#include <qaudiosystem.h>
+
+
+QT_BEGIN_NAMESPACE
+
+const unsigned int MAX_SAMPLE_RATES = 5;
+const unsigned int SAMPLE_RATES[] = { 8000, 11025, 22050, 44100, 48000 };
+
+class QAudioDeviceInfoInternal : public QAbstractAudioDeviceInfo
+{
+    Q_OBJECT
+
+public:
+    QAudioDeviceInfoInternal(QByteArray dev,QAudio::Mode mode);
+    ~QAudioDeviceInfoInternal();
+
+    bool open();
+    void close();
+
+    bool testSettings(const QAudioFormat& format) const;
+    void updateLists();
+    QAudioFormat preferredFormat() const;
+    bool isFormatSupported(const QAudioFormat& format) const;
+    QString deviceName() const;
+    QStringList supportedCodecs();
+    QList<int> supportedSampleRates();
+    QList<int> supportedChannelCounts();
+    QList<int> supportedSampleSizes();
+    QList<QAudioFormat::Endian> supportedByteOrders();
+    QList<QAudioFormat::SampleType> supportedSampleTypes();
+    static QByteArray defaultInputDevice();
+    static QByteArray defaultOutputDevice();
+    static QList<QByteArray> availableDevices(QAudio::Mode);
+
+private:
+    QAudio::Mode mode;
+    QString device;
+    quint32 devId;
+    QAudioFormat nearest;
+    QList<int> freqz;
+    QList<int> channelz;
+    QList<int> sizez;
+    QList<QAudioFormat::Endian> byteOrderz;
+    QStringList codecz;
+    QList<QAudioFormat::SampleType> typez;
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimediakit/audio/qaudioformat.cpp b/src/multimediakit/audio/qaudioformat.cpp
new file mode 100644
index 000000000..3afba7ee4
--- /dev/null
+++ b/src/multimediakit/audio/qaudioformat.cpp
@@ -0,0 +1,407 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <QDebug>
+#include <qaudioformat.h>
+
+
+QT_BEGIN_NAMESPACE
+
+
+class QAudioFormatPrivate : public QSharedData
+{
+public:
+    QAudioFormatPrivate()
+    {
+        frequency = -1;
+        channels = -1;
+        sampleSize = -1;
+        byteOrder = QAudioFormat::Endian(QSysInfo::ByteOrder);
+        sampleType = QAudioFormat::Unknown;
+    }
+
+    QAudioFormatPrivate(const QAudioFormatPrivate &other):
+        QSharedData(other),
+        codec(other.codec),
+        byteOrder(other.byteOrder),
+        sampleType(other.sampleType),
+        frequency(other.frequency),
+        channels(other.channels),
+        sampleSize(other.sampleSize)
+    {
+    }
+
+    QAudioFormatPrivate& operator=(const QAudioFormatPrivate &other)
+    {
+        codec = other.codec;
+        byteOrder = other.byteOrder;
+        sampleType = other.sampleType;
+        frequency = other.frequency;
+        channels = other.channels;
+        sampleSize = other.sampleSize;
+
+        return *this;
+    }
+
+    QString codec;
+    QAudioFormat::Endian byteOrder;
+    QAudioFormat::SampleType sampleType;
+    int frequency;
+    int channels;
+    int sampleSize;
+};
+
+/*!
+    \class QAudioFormat
+    \brief The QAudioFormat class stores audio stream parameter information.
+
+    \inmodule QtMultimediaKit
+    \ingroup  multimedia
+    \since 1.0
+
+    An audio format specifies how data in an audio stream is arranged,
+    i.e, how the stream is to be interpreted. The encoding itself is
+    specified by the codec() used for the stream.
+
+    In addition to the encoding, QAudioFormat contains other
+    parameters that further specify how the audio sample data is arranged.
+    These are the frequency, the number of channels, the sample size,
+    the sample type, and the byte order. The following table describes
+    these in more detail.
+
+    \table
+        \header
+            \o Parameter
+            \o Description
+        \row
+            \o Sample Rate
+            \o Samples per second of audio data in Hertz.
+        \row
+            \o Number of channels
+            \o The number of audio channels (typically one for mono
+               or two for stereo)
+        \row
+            \o Sample size
+            \o How much data is stored in each sample (typically 8
+               or 16 bits)
+        \row
+            \o Sample type
+            \o Numerical representation of sample (typically signed integer,
+               unsigned integer or float)
+        \row
+            \o Byte order
+            \o Byte ordering of sample (typically little endian, big endian)
+    \endtable
+
+    This class is typically used in conjunction with QAudioInput or
+    QAudioOutput to allow you to specify the parameters of the audio
+    stream being read or written.
+
+    You can obtain audio formats compatible with the audio device used
+    through functions in QAudioDeviceInfo. This class also lets you
+    query available parameter values for a device, so that you can set
+    the parameters yourself. See the \l QAudioDeviceInfo class
+    description for details. You need to know the format of the audio
+    streams you wish to play or record.
+*/
+
+/*!
+    Construct a new audio format.
+
+    Values are initialized as follows:
+    \list
+    \o sampleRate()  = -1
+    \o channelCount() = -1
+    \o sampleSize() = -1
+    \o byteOrder()  = QAudioFormat::Endian(QSysInfo::ByteOrder)
+    \o sampleType() = QAudioFormat::Unknown
+    \c codec()      = ""
+    \endlist
+*/
+QAudioFormat::QAudioFormat():
+    d(new QAudioFormatPrivate)
+{
+}
+
+/*!
+    Construct a new audio format using \a other.
+    \since 1.0
+*/
+QAudioFormat::QAudioFormat(const QAudioFormat &other):
+    d(other.d)
+{
+}
+
+/*!
+    Destroy this audio format.
+*/
+QAudioFormat::~QAudioFormat()
+{
+}
+
+/*!
+    Assigns \a other to this QAudioFormat implementation.
+    \since 1.0
+*/
+QAudioFormat& QAudioFormat::operator=(const QAudioFormat &other)
+{
+    d = other.d;
+    return *this;
+}
+
+/*!
+  Returns true if this QAudioFormat is equal to the \a other
+  QAudioFormat; otherwise returns false.
+
+  All elements of QAudioFormat are used for the comparison.
+  \since 1.0
+*/
+bool QAudioFormat::operator==(const QAudioFormat &other) const
+{
+    return d->frequency == other.d->frequency &&
+            d->channels == other.d->channels &&
+            d->sampleSize == other.d->sampleSize &&
+            d->byteOrder == other.d->byteOrder &&
+            d->codec == other.d->codec &&
+            d->sampleType == other.d->sampleType;
+}
+
+/*!
+  Returns true if this QAudioFormat is not equal to the \a other
+  QAudioFormat; otherwise returns false.
+
+  All elements of QAudioFormat are used for the comparison.
+  \since 1.0
+*/
+bool QAudioFormat::operator!=(const QAudioFormat& other) const
+{
+    return !(*this == other);
+}
+
+/*!
+    Returns true if all of the parameters are valid.
+    \since 1.0
+*/
+bool QAudioFormat::isValid() const
+{
+    return d->frequency != -1 && d->channels != -1 && d->sampleSize != -1 &&
+            d->sampleType != QAudioFormat::Unknown && !d->codec.isEmpty();
+}
+
+/*!
+   Sets the sample rate to \a samplerate Hertz.
+
+   \since 1.0
+*/
+void QAudioFormat::setSampleRate(int samplerate)
+{
+    d->frequency = samplerate;
+}
+
+/*!
+   \obsolete
+
+   Use setSampleRate() instead.
+*/
+void QAudioFormat::setFrequency(int frequency)
+{
+    d->frequency = frequency;
+}
+
+/*!
+    Returns the current sample rate in Hertz.
+
+    \since 1.0
+*/
+int QAudioFormat::sampleRate() const
+{
+    return d->frequency;
+}
+
+/*!
+   \obsolete
+
+   Use sampleRate() instead.
+*/
+int QAudioFormat::frequency() const
+{
+    return d->frequency;
+}
+
+/*!
+   Sets the channel count to \a channels.
+
+   \since 1.0
+*/
+void QAudioFormat::setChannelCount(int channels)
+{
+    d->channels = channels;
+}
+
+/*!
+   \obsolete
+
+   Use setChannelCount() instead.
+*/
+void QAudioFormat::setChannels(int channels)
+{
+    d->channels = channels;
+}
+
+/*!
+    Returns the current channel count value.
+
+    \since 1.0
+*/
+int QAudioFormat::channelCount() const
+{
+    return d->channels;
+}
+
+/*!
+    \obsolete
+
+    Use channelCount() instead.
+*/
+int QAudioFormat::channels() const
+{
+    return d->channels;
+}
+
+/*!
+   Sets the sample size to the \a sampleSize specified, in bits.
+
+   This is typically 8 or 16, but some systems may support higher sample sizes.
+   \since 1.0
+*/
+void QAudioFormat::setSampleSize(int sampleSize)
+{
+    d->sampleSize = sampleSize;
+}
+
+/*!
+    Returns the current sample size value, in bits.
+    \since 1.0
+*/
+int QAudioFormat::sampleSize() const
+{
+    return d->sampleSize;
+}
+
+/*!
+   Sets the codec to \a codec.
+
+   The parameter to this function should be one of the types
+   reported by the QAudioDeviceInfo::supportedCodecs() function
+   for the audio device you are working with.
+
+   \since 1.0
+   \sa QAudioDeviceInfo::supportedCodecs()
+*/
+void QAudioFormat::setCodec(const QString &codec)
+{
+    d->codec = codec;
+}
+
+/*!
+    Returns the current codec identifier.
+
+   \since 1.0
+   \sa QAudioDeviceInfo::supportedCodecs()
+*/
+QString QAudioFormat::codec() const
+{
+    return d->codec;
+}
+
+/*!
+   Sets the byteOrder to \a byteOrder.
+   \since 1.0
+*/
+void QAudioFormat::setByteOrder(QAudioFormat::Endian byteOrder)
+{
+    d->byteOrder = byteOrder;
+}
+
+/*!
+    Returns the current byteOrder value.
+    \since 1.0
+*/
+QAudioFormat::Endian QAudioFormat::byteOrder() const
+{
+    return d->byteOrder;
+}
+
+/*!
+   Sets the sampleType to \a sampleType.
+   \since 1.0
+*/
+void QAudioFormat::setSampleType(QAudioFormat::SampleType sampleType)
+{
+    d->sampleType = sampleType;
+}
+
+/*!
+    Returns the current SampleType value.
+    \since 1.0
+*/
+QAudioFormat::SampleType QAudioFormat::sampleType() const
+{
+    return d->sampleType;
+}
+
+/*!
+    \enum QAudioFormat::SampleType
+
+    \value Unknown       Not Set
+    \value SignedInt     Samples are signed integers
+    \value UnSignedInt   Samples are unsigned intergers
+    \value Float         Samples are floats
+*/
+
+/*!
+    \enum QAudioFormat::Endian
+
+    \value BigEndian     Samples are big endian byte order
+    \value LittleEndian  Samples are little endian byte order
+*/
+
+QT_END_NAMESPACE
+
diff --git a/src/multimediakit/audio/qaudioformat.h b/src/multimediakit/audio/qaudioformat.h
new file mode 100644
index 000000000..b7d0a4027
--- /dev/null
+++ b/src/multimediakit/audio/qaudioformat.h
@@ -0,0 +1,106 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QAUDIOFORMAT_H
+#define QAUDIOFORMAT_H
+
+#include <QtCore/qobject.h>
+#include <QtCore/qshareddata.h>
+
+#include <qmobilityglobal.h>
+#include <qtmedianamespace.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+
+class QAudioFormatPrivate;
+
+class Q_MULTIMEDIA_EXPORT QAudioFormat
+{
+public:
+    enum SampleType { Unknown, SignedInt, UnSignedInt, Float };
+    enum Endian { BigEndian = QSysInfo::BigEndian, LittleEndian = QSysInfo::LittleEndian };
+
+    QAudioFormat();
+    QAudioFormat(const QAudioFormat &other);
+    ~QAudioFormat();
+
+    QAudioFormat& operator=(const QAudioFormat &other);
+    bool operator==(const QAudioFormat &other) const;
+    bool operator!=(const QAudioFormat &other) const;
+
+    bool isValid() const;
+
+    void setFrequency(int frequency);
+    int frequency() const;
+    void setSampleRate(int sampleRate);
+    int sampleRate() const;
+
+    void setChannels(int channels);
+    int channels() const;
+    void setChannelCount(int channelCount);
+    int channelCount() const;
+
+    void setSampleSize(int sampleSize);
+    int sampleSize() const;
+
+    void setCodec(const QString &codec);
+    QString codec() const;
+
+    void setByteOrder(QAudioFormat::Endian byteOrder);
+    QAudioFormat::Endian byteOrder() const;
+
+    void setSampleType(QAudioFormat::SampleType sampleType);
+    QAudioFormat::SampleType sampleType() const;
+
+private:
+    QSharedDataPointer<QAudioFormatPrivate> d;
+};
+
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif  // QAUDIOFORMAT_H
diff --git a/src/multimediakit/audio/qaudioinput.cpp b/src/multimediakit/audio/qaudioinput.cpp
new file mode 100644
index 000000000..c20ea41c2
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput.cpp
@@ -0,0 +1,426 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include "qaudio.h"
+#include "qaudiodeviceinfo.h"
+#include "qaudiosystem.h"
+#include "qaudioinput.h"
+
+#include "qaudiodevicefactory_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QAudioInput
+    \brief The QAudioInput class provides an interface for receiving audio data from an audio input device.
+
+    \inmodule QtMultimediaKit
+    \ingroup  multimedia
+    \since 1.0
+
+    XXX Needs more blurb about use cases etc
+    Link to terminology etc
+    Push/Pull mode
+    State diagram
+
+
+    You can construct an audio input with the system's
+    \l{QAudioDeviceInfo::defaultInputDevice()}{default audio input
+    device}. It is also possible to create QAudioInput with a
+    specific QAudioDeviceInfo. When you create the audio input, you
+    should also send in the QAudioFormat to be used for the recording
+    (see the QAudioFormat class description for details).
+
+    To record to a file:
+
+    QAudioInput lets you record audio with an audio input device. The
+    default constructor of this class will use the systems default
+    audio device, but you can also specify a QAudioDeviceInfo for a
+    specific device. You also need to pass in the QAudioFormat in
+    which you wish to record.
+
+    Starting up the QAudioInput is simply a matter of calling start()
+    with a QIODevice opened for writing. For instance, to record to a
+    file, you can:
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Audio input class members
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Audio input setup
+
+    This will start recording if the format specified is supported by
+    the input device (you can check this with
+    QAudioDeviceInfo::isFormatSupported(). In case there are any
+    snags, use the error() function to check what went wrong. We stop
+    recording in the \c stopRecording() slot.
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Audio input stop recording
+
+    At any point in time, QAudioInput will be in one of four states:
+    active, suspended, stopped, or idle. These states are specified by
+    the QAudio::State enum. You can request a state change directly through
+    suspend(), resume(), stop(), reset(), and start(). The current
+    state is reported by state(). QAudioOutput will also signal you
+    when the state changes (stateChanged()).
+
+    QAudioInput provides several ways of measuring the time that has
+    passed since the start() of the recording. The \c processedUSecs()
+    function returns the length of the stream in microseconds written,
+    i.e., it leaves out the times the audio input was suspended or idle.
+    The elapsedUSecs() function returns the time elapsed since start() was called regardless of
+    which states the QAudioInput has been in.
+
+    If an error should occur, you can fetch its reason with error().
+    The possible error reasons are described by the QAudio::Error
+    enum. The QAudioInput will enter the \l{QAudio::}{StoppedState} when
+    an error is encountered.  Connect to the stateChanged() signal to
+    handle the error:
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Audio input state changed
+
+    \sa QAudioOutput, QAudioDeviceInfo
+
+    \section1 Symbian Platform Security Requirements
+
+    On Symbian, processes which use this class must have the
+    \c UserEnvironment platform security capability.  If the client
+    process lacks this capability, calls to either overload of start()
+    will fail.
+    This failure is indicated by the QAudioInput object setting
+    its error() value to \l{QAudio::OpenError} and then emitting a
+    \l{stateChanged()}{stateChanged}(\l{QAudio::StoppedState}) signal.
+
+    Platform security capabilities are added via the
+    \l{qmake-variable-reference.html#target-capability}{TARGET.CAPABILITY}
+    qmake variable.
+*/
+
+/*!
+    Construct a new audio input and attach it to \a parent.
+    The default audio input device is used with the output
+    \a format parameters.
+    \since 1.0
+*/
+
+QAudioInput::QAudioInput(const QAudioFormat &format, QObject *parent):
+    QObject(parent)
+{
+    d = QAudioDeviceFactory::createDefaultInputDevice(format);
+    connect(d, SIGNAL(notify()), SIGNAL(notify()));
+    connect(d, SIGNAL(stateChanged(QAudio::State)), SIGNAL(stateChanged(QAudio::State)));
+}
+
+/*!
+    Construct a new audio input and attach it to \a parent.
+    The device referenced by \a audioDevice is used with the input
+    \a format parameters.
+    \since 1.0
+*/
+
+QAudioInput::QAudioInput(const QAudioDeviceInfo &audioDevice, const QAudioFormat &format, QObject *parent):
+    QObject(parent)
+{
+    d = QAudioDeviceFactory::createInputDevice(audioDevice, format);
+    connect(d, SIGNAL(notify()), SIGNAL(notify()));
+    connect(d, SIGNAL(stateChanged(QAudio::State)), SIGNAL(stateChanged(QAudio::State)));
+}
+
+/*!
+    Destroy this audio input.
+*/
+
+QAudioInput::~QAudioInput()
+{
+    delete d;
+}
+
+/*!
+     Uses the \a device as the QIODevice to transfer data.
+     Passing a QIODevice allows the data to be transferred without any extra code.
+     All that is required is to open the QIODevice.
+
+     If able to successfully get audio data from the systems audio device the
+     state() is set to either QAudio::ActiveState or QAudio::IdleState,
+     error() is set to QAudio::NoError and the stateChanged() signal is emitted.
+
+     If a problem occurs during this process the error() is set to QAudio::OpenError,
+     state() is set to QAudio::StoppedState and stateChanged() signal is emitted.
+
+     \l{QAudioInput#Symbian Platform Security Requirements}
+
+     \since 1.0
+     \sa QIODevice
+*/
+
+void QAudioInput::start(QIODevice* device)
+{
+    d->start(device);
+}
+
+/*!
+    Returns a pointer to the QIODevice being used to handle the data
+    transfer. This QIODevice can be used to read() audio data
+    directly.
+
+    If able to access the systems audio device the state() is set to
+    QAudio::IdleState, error() is set to QAudio::NoError
+    and the stateChanged() signal is emitted.
+
+    If a problem occurs during this process the error() is set to QAudio::OpenError,
+    state() is set to QAudio::StoppedState and stateChanged() signal is emitted.
+
+    \l{QAudioInput#Symbian Platform Security Requirements}
+
+    \since 1.0
+    \sa QIODevice
+*/
+
+QIODevice* QAudioInput::start()
+{
+    return d->start();
+}
+
+/*!
+    Returns the QAudioFormat being used.
+    \since 1.0
+*/
+
+QAudioFormat QAudioInput::format() const
+{
+    return d->format();
+}
+
+/*!
+    Stops the audio input, detaching from the system resource.
+
+    Sets error() to QAudio::NoError, state() to QAudio::StoppedState and
+    emit stateChanged() signal.
+    \since 1.0
+*/
+
+void QAudioInput::stop()
+{
+    d->stop();
+}
+
+/*!
+    Drops all audio data in the buffers, resets buffers to zero.
+    \since 1.0
+*/
+
+void QAudioInput::reset()
+{
+    d->reset();
+}
+
+/*!
+    Stops processing audio data, preserving buffered audio data.
+
+    Sets error() to QAudio::NoError, state() to QAudio::SuspendedState and
+    emit stateChanged() signal.
+    \since 1.0
+*/
+
+void QAudioInput::suspend()
+{
+    d->suspend();
+}
+
+/*!
+    Resumes processing audio data after a suspend().
+
+    Sets error() to QAudio::NoError.
+    Sets state() to QAudio::ActiveState if you previously called start(QIODevice*).
+    Sets state() to QAudio::IdleState if you previously called start().
+    emits stateChanged() signal.
+    \since 1.0
+*/
+
+void QAudioInput::resume()
+{
+     d->resume();
+}
+
+/*!
+    Sets the audio buffer size to \a value milliseconds.
+
+    Note: This function can be called anytime before start(), calls to this
+    are ignored after start(). It should not be assumed that the buffer size
+    set is the actual buffer size used, calling bufferSize() anytime after start()
+    will return the actual buffer size being used.
+
+    \since 1.0
+*/
+
+void QAudioInput::setBufferSize(int value)
+{
+    d->setBufferSize(value);
+}
+
+/*!
+    Returns the audio buffer size in milliseconds.
+
+    If called before start(), returns platform default value.
+    If called before start() but setBufferSize() was called prior, returns value set by setBufferSize().
+    If called after start(), returns the actual buffer size being used. This may not be what was set previously
+    by setBufferSize().
+
+    \since 1.0
+*/
+
+int QAudioInput::bufferSize() const
+{
+    return d->bufferSize();
+}
+
+/*!
+    Returns the amount of audio data available to read in bytes.
+
+    NOTE: returned value is only valid while in QAudio::ActiveState or QAudio::IdleState
+    state, otherwise returns zero.
+    \since 1.0
+*/
+
+int QAudioInput::bytesReady() const
+{
+    /*
+    -If not ActiveState|IdleState, return 0
+    -return amount of audio data available to read
+    */
+    return d->bytesReady();
+}
+
+/*!
+    Returns the period size in bytes.
+
+    Note: This is the recommended read size in bytes.
+    \since 1.0
+*/
+
+int QAudioInput::periodSize() const
+{
+    return d->periodSize();
+}
+
+/*!
+    Sets the interval for notify() signal to be emitted.
+    This is based on the \a ms of audio data processed
+    not on actual real-time.
+    The minimum resolution of the timer is platform specific and values
+    should be checked with notifyInterval() to confirm actual value
+    being used.
+    \since 1.0
+*/
+
+void QAudioInput::setNotifyInterval(int ms)
+{
+    d->setNotifyInterval(ms);
+}
+
+/*!
+    Returns the notify interval in milliseconds.
+    \since 1.0
+*/
+
+int QAudioInput::notifyInterval() const
+{
+    return d->notifyInterval();
+}
+
+/*!
+    Returns the amount of audio data processed since start()
+    was called in microseconds.
+    \since 1.0
+*/
+
+qint64 QAudioInput::processedUSecs() const
+{
+    return d->processedUSecs();
+}
+
+/*!
+    Returns the microseconds since start() was called, including time in Idle and
+    Suspend states.
+    \since 1.0
+*/
+
+qint64 QAudioInput::elapsedUSecs() const
+{
+    return d->elapsedUSecs();
+}
+
+/*!
+    Returns the error state.
+    \since 1.0
+*/
+
+QAudio::Error QAudioInput::error() const
+{
+    return d->error();
+}
+
+/*!
+    Returns the state of audio processing.
+    \since 1.0
+*/
+
+QAudio::State QAudioInput::state() const
+{
+    return d->state();
+}
+
+/*!
+    \fn QAudioInput::stateChanged(QAudio::State state)
+    This signal is emitted when the device \a state has changed.
+    \since 1.0
+*/
+
+/*!
+    \fn QAudioInput::notify()
+    This signal is emitted when x ms of audio data has been processed
+    the interval set by setNotifyInterval(x).
+    \since 1.0
+*/
+
+QT_END_NAMESPACE
+
+#include "moc_qaudioinput.cpp"
+
diff --git a/src/multimediakit/audio/qaudioinput.h b/src/multimediakit/audio/qaudioinput.h
new file mode 100644
index 000000000..c1b866eb6
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput.h
@@ -0,0 +1,111 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QAUDIOINPUT_H
+#define QAUDIOINPUT_H
+
+#include <QtCore/qiodevice.h>
+
+#include <qmobilityglobal.h>
+#include <qtmedianamespace.h>
+
+#include <qaudio.h>
+#include <qaudioformat.h>
+#include <qaudiodeviceinfo.h>
+
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+
+class QAbstractAudioInput;
+
+class Q_MULTIMEDIA_EXPORT QAudioInput : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit QAudioInput(const QAudioFormat &format = QAudioFormat(), QObject *parent = 0);
+    explicit QAudioInput(const QAudioDeviceInfo &audioDeviceInfo, const QAudioFormat &format = QAudioFormat(), QObject *parent = 0);
+    ~QAudioInput();
+
+    QAudioFormat format() const;
+
+    void start(QIODevice *device);
+    QIODevice* start();
+
+    void stop();
+    void reset();
+    void suspend();
+    void resume();
+
+    void setBufferSize(int bytes);
+    int bufferSize() const;
+
+    int bytesReady() const;
+    int periodSize() const;
+
+    void setNotifyInterval(int milliSeconds);
+    int notifyInterval() const;
+
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
+
+    QAudio::Error error() const;
+    QAudio::State state() const;
+
+Q_SIGNALS:
+    void stateChanged(QAudio::State);
+    void notify();
+
+private:
+    Q_DISABLE_COPY(QAudioInput)
+
+    QAbstractAudioInput* d;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QAUDIOINPUT_H
diff --git a/src/multimediakit/audio/qaudioinput_alsa_p.cpp b/src/multimediakit/audio/qaudioinput_alsa_p.cpp
new file mode 100644
index 000000000..e7a04599f
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput_alsa_p.cpp
@@ -0,0 +1,867 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// INTERNAL USE ONLY: Do NOT use for any other purpose.
+//
+
+#include <QtCore/qcoreapplication.h>
+#include "qaudioinput_alsa_p.h"
+#include "qaudiodeviceinfo_alsa_p.h"
+
+QT_BEGIN_NAMESPACE
+
+//#define DEBUG_AUDIO 1
+
+QAudioInputPrivate::QAudioInputPrivate(const QByteArray &device)
+{
+    bytesAvailable = 0;
+    handle = 0;
+    ahandler = 0;
+    access = SND_PCM_ACCESS_RW_INTERLEAVED;
+    pcmformat = SND_PCM_FORMAT_S16;
+    buffer_size = 0;
+    period_size = 0;
+    buffer_time = 100000;
+    period_time = 20000;
+    totalTimeValue = 0;
+    intervalTime = 1000;
+    errorState = QAudio::NoError;
+    deviceState = QAudio::StoppedState;
+    audioSource = 0;
+    pullMode = true;
+    resuming = false;
+
+    m_device = device;
+
+    timer = new QTimer(this);
+    connect(timer,SIGNAL(timeout()),SLOT(userFeed()));
+}
+
+QAudioInputPrivate::~QAudioInputPrivate()
+{
+    close();
+    disconnect(timer, SIGNAL(timeout()));
+    QCoreApplication::processEvents();
+    delete timer;
+}
+
+QAudio::Error QAudioInputPrivate::error() const
+{
+    return errorState;
+}
+
+QAudio::State QAudioInputPrivate::state() const
+{
+    return deviceState;
+}
+
+void QAudioInputPrivate::setFormat(const QAudioFormat& fmt)
+{
+    if (deviceState == QAudio::StoppedState)
+        settings = fmt;
+}
+
+QAudioFormat QAudioInputPrivate::format() const
+{
+    return settings;
+}
+
+int QAudioInputPrivate::xrun_recovery(int err)
+{
+    int  count = 0;
+    bool reset = false;
+
+    if(err == -EPIPE) {
+        errorState = QAudio::UnderrunError;
+        err = snd_pcm_prepare(handle);
+        if(err < 0)
+            reset = true;
+        else {
+            bytesAvailable = checkBytesReady();
+            if (bytesAvailable <= 0)
+                reset = true;
+        }
+
+    } else if((err == -ESTRPIPE)||(err == -EIO)) {
+        errorState = QAudio::IOError;
+        while((err = snd_pcm_resume(handle)) == -EAGAIN){
+            usleep(100);
+            count++;
+            if(count > 5) {
+                reset = true;
+                break;
+            }
+        }
+        if(err < 0) {
+            err = snd_pcm_prepare(handle);
+            if(err < 0)
+                reset = true;
+        }
+    }
+    if(reset) {
+        close();
+        open();
+        snd_pcm_prepare(handle);
+        return 0;
+    }
+    return err;
+}
+
+int QAudioInputPrivate::setFormat()
+{
+    snd_pcm_format_t format = SND_PCM_FORMAT_UNKNOWN;
+
+    if(settings.sampleSize() == 8) {
+        format = SND_PCM_FORMAT_U8;
+    } else if(settings.sampleSize() == 16) {
+        if(settings.sampleType() == QAudioFormat::SignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                format = SND_PCM_FORMAT_S16_LE;
+            else
+                format = SND_PCM_FORMAT_S16_BE;
+        } else if(settings.sampleType() == QAudioFormat::UnSignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                format = SND_PCM_FORMAT_U16_LE;
+            else
+                format = SND_PCM_FORMAT_U16_BE;
+        }
+    } else if(settings.sampleSize() == 24) {
+        if(settings.sampleType() == QAudioFormat::SignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                format = SND_PCM_FORMAT_S24_LE;
+            else
+                format = SND_PCM_FORMAT_S24_BE;
+        } else if(settings.sampleType() == QAudioFormat::UnSignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                format = SND_PCM_FORMAT_U24_LE;
+            else
+                format = SND_PCM_FORMAT_U24_BE;
+        }
+    } else if(settings.sampleSize() == 32) {
+        if(settings.sampleType() == QAudioFormat::SignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                format = SND_PCM_FORMAT_S32_LE;
+            else
+                format = SND_PCM_FORMAT_S32_BE;
+        } else if(settings.sampleType() == QAudioFormat::UnSignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                format = SND_PCM_FORMAT_U32_LE;
+            else
+                format = SND_PCM_FORMAT_U32_BE;
+        } else if(settings.sampleType() == QAudioFormat::Float) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                format = SND_PCM_FORMAT_FLOAT_LE;
+            else
+                format = SND_PCM_FORMAT_FLOAT_BE;
+        }
+    } else if(settings.sampleSize() == 64) {
+        if(settings.byteOrder() == QAudioFormat::LittleEndian)
+            format = SND_PCM_FORMAT_FLOAT64_LE;
+        else
+            format = SND_PCM_FORMAT_FLOAT64_BE;
+    }
+
+    return format != SND_PCM_FORMAT_UNKNOWN
+            ? snd_pcm_hw_params_set_format( handle, hwparams, format)
+            : -1;
+}
+
+void QAudioInputPrivate::start(QIODevice* device)
+{
+    if(deviceState != QAudio::StoppedState)
+        close();
+
+    if(!pullMode && audioSource)
+        delete audioSource;
+
+    pullMode = true;
+    audioSource = device;
+
+    deviceState = QAudio::ActiveState;
+
+    if( !open() )
+        return;
+
+    emit stateChanged(deviceState);
+}
+
+QIODevice* QAudioInputPrivate::start()
+{
+    if(deviceState != QAudio::StoppedState)
+        close();
+
+    if(!pullMode && audioSource)
+        delete audioSource;
+
+    pullMode = false;
+    audioSource = new InputPrivate(this);
+    audioSource->open(QIODevice::ReadOnly | QIODevice::Unbuffered);
+
+    deviceState = QAudio::IdleState;
+
+    if( !open() )
+        return 0;
+
+    emit stateChanged(deviceState);
+
+    return audioSource;
+}
+
+void QAudioInputPrivate::stop()
+{
+    if(deviceState == QAudio::StoppedState)
+        return;
+
+    deviceState = QAudio::StoppedState;
+
+    close();
+    emit stateChanged(deviceState);
+}
+
+bool QAudioInputPrivate::open()
+{
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
+#endif
+    clockStamp.restart();
+    timeStamp.restart();
+    elapsedTimeOffset = 0;
+
+    int dir;
+    int err = 0;
+    int count=0;
+    unsigned int freakuency=settings.frequency();
+
+    if (!settings.isValid()) {
+        qWarning("QAudioOutput: open error, invalid format.");
+    } else if (settings.sampleRate() <= 0) {
+        qWarning("QAudioOutput: open error, invalid sample rate (%d).",
+                 settings.sampleRate());
+    } else {
+        err = -1;
+    }
+
+    if (err == 0) {
+        errorState = QAudio::OpenError;
+        deviceState = QAudio::StoppedState;
+        emit errorChanged(errorState);
+        return false;
+    }
+
+
+    QString dev = QString(QLatin1String(m_device.constData()));
+    QList<QByteArray> devices = QAudioDeviceInfoInternal::availableDevices(QAudio::AudioInput);
+    if(dev.compare(QLatin1String("default")) == 0) {
+#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
+        if (devices.size() > 0)
+            dev = QLatin1String(devices.first());
+        else
+            return false;
+#else
+        dev = QLatin1String("hw:0,0");
+#endif
+    } else {
+#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
+        dev = QLatin1String(m_device);
+#else
+        int idx = 0;
+        char *name;
+
+        QString shortName = QLatin1String(m_device.mid(m_device.indexOf('=',0)+1).constData());
+
+        while(snd_card_get_name(idx,&name) == 0) {
+            if(qstrncmp(shortName.toLocal8Bit().constData(),name,shortName.length()) == 0)
+                break;
+            idx++;
+        }
+        dev = QString(QLatin1String("hw:%1,0")).arg(idx);
+#endif
+    }
+
+    // Step 1: try and open the device
+    while((count < 5) && (err < 0)) {
+        err=snd_pcm_open(&handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_CAPTURE,0);
+        if(err < 0)
+            count++;
+    }
+    if (( err < 0)||(handle == 0)) {
+        errorState = QAudio::OpenError;
+        deviceState = QAudio::StoppedState;
+        emit stateChanged(deviceState);
+        return false;
+    }
+    snd_pcm_nonblock( handle, 0 );
+
+    // Step 2: Set the desired HW parameters.
+    snd_pcm_hw_params_alloca( &hwparams );
+
+    bool fatal = false;
+    QString errMessage;
+    unsigned int chunks = 8;
+
+    err = snd_pcm_hw_params_any( handle, hwparams );
+    if ( err < 0 ) {
+        fatal = true;
+        errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_any: err = %1").arg(err);
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_rate_resample( handle, hwparams, 1 );
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_rate_resample: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_access( handle, hwparams, access );
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_access: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = setFormat();
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_format: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_channels( handle, hwparams, (unsigned int)settings.channels() );
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_channels: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_rate_near( handle, hwparams, &freakuency, 0 );
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_rate_near: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_buffer_time_near(handle, hwparams, &buffer_time, &dir);
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_buffer_time_near: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_period_time_near(handle, hwparams, &period_time, &dir);
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_period_time_near: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_periods_near(handle, hwparams, &chunks, &dir);
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_periods_near: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params(handle, hwparams);
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params: err = %1").arg(err);
+        }
+    }
+    if( err < 0) {
+        qWarning()<<errMessage;
+        errorState = QAudio::OpenError;
+        deviceState = QAudio::StoppedState;
+        emit stateChanged(deviceState);
+        return false;
+    }
+    snd_pcm_hw_params_get_buffer_size(hwparams,&buffer_frames);
+    buffer_size = snd_pcm_frames_to_bytes(handle,buffer_frames);
+    snd_pcm_hw_params_get_period_size(hwparams,&period_frames, &dir);
+    period_size = snd_pcm_frames_to_bytes(handle,period_frames);
+    snd_pcm_hw_params_get_buffer_time(hwparams,&buffer_time, &dir);
+    snd_pcm_hw_params_get_period_time(hwparams,&period_time, &dir);
+
+    // Step 3: Set the desired SW parameters.
+    snd_pcm_sw_params_t *swparams;
+    snd_pcm_sw_params_alloca(&swparams);
+    snd_pcm_sw_params_current(handle, swparams);
+    snd_pcm_sw_params_set_start_threshold(handle,swparams,period_frames);
+    snd_pcm_sw_params_set_stop_threshold(handle,swparams,buffer_frames);
+    snd_pcm_sw_params_set_avail_min(handle, swparams,period_frames);
+    snd_pcm_sw_params(handle, swparams);
+
+    // Step 4: Prepare audio
+    ringBuffer.resize(buffer_size);
+    snd_pcm_prepare( handle );
+    snd_pcm_start(handle);
+
+    // Step 5: Setup timer
+    bytesAvailable = checkBytesReady();
+
+    if(pullMode)
+        connect(audioSource,SIGNAL(readyRead()),this,SLOT(userFeed()));
+
+    // Step 6: Start audio processing
+    chunks = buffer_size/period_size;
+    timer->start(period_time*chunks/2000);
+
+    errorState  = QAudio::NoError;
+
+    totalTimeValue = 0;
+
+    return true;
+}
+
+void QAudioInputPrivate::close()
+{
+    timer->stop();
+
+    if ( handle ) {
+        snd_pcm_drop( handle );
+        snd_pcm_close( handle );
+        handle = 0;
+    }
+}
+
+int QAudioInputPrivate::checkBytesReady()
+{
+    if(resuming)
+        bytesAvailable = period_size;
+    else if(deviceState != QAudio::ActiveState
+            && deviceState != QAudio::IdleState)
+        bytesAvailable = 0;
+    else {
+        int frames = snd_pcm_avail_update(handle);
+        if (frames < 0) {
+            bytesAvailable = frames;
+        } else {
+            if((int)frames > (int)buffer_frames)
+                frames = buffer_frames;
+            bytesAvailable = snd_pcm_frames_to_bytes(handle, frames);
+        }
+    }
+    return bytesAvailable;
+}
+
+int QAudioInputPrivate::bytesReady() const
+{
+    return qMax(bytesAvailable, 0);
+}
+
+qint64 QAudioInputPrivate::read(char* data, qint64 len)
+{
+    // Read in some audio data and write it to QIODevice, pull mode
+    if ( !handle )
+        return 0;
+
+    int bytesRead = 0;
+    int bytesInRingbufferBeforeRead = ringBuffer.bytesOfDataInBuffer();
+
+    if (ringBuffer.bytesOfDataInBuffer() < len) {
+
+        // bytesAvaiable is saved as a side effect of checkBytesReady().
+        int bytesToRead = checkBytesReady();
+
+        if (bytesToRead < 0) {
+            // bytesAvailable as negative is error code, try to recover from it.
+            xrun_recovery(bytesToRead);
+            bytesToRead = checkBytesReady();
+            if (bytesToRead < 0) {
+                // recovery failed must stop and set error.
+                close();
+                errorState = QAudio::IOError;
+                deviceState = QAudio::StoppedState;
+                emit stateChanged(deviceState);
+                return 0;
+            }
+        }
+
+        bytesToRead = qMin<qint64>(len, bytesToRead);
+        bytesToRead = qMin<qint64>(ringBuffer.freeBytes(), bytesToRead);
+        bytesToRead -= bytesToRead % period_size;
+
+        int count=0;
+        int err = 0;
+        while(count < 5 && bytesToRead > 0) {
+            char buffer[bytesToRead];
+            int chunks = bytesToRead / period_size;
+            int frames = chunks * period_frames;
+            if (frames > (int)buffer_frames)
+                frames = buffer_frames;
+
+            int readFrames = snd_pcm_readi(handle, buffer, frames);
+
+            if (readFrames >= 0) {
+                bytesRead = snd_pcm_frames_to_bytes(handle, readFrames);
+                ringBuffer.write(buffer, bytesRead);
+#ifdef DEBUG_AUDIO
+                qDebug() << QString::fromLatin1("read in bytes = %1 (frames=%2)").arg(bytesRead).arg(readFrames).toLatin1().constData();
+#endif
+                break;
+            } else if((readFrames == -EAGAIN) || (readFrames == -EINTR)) {
+                errorState = QAudio::IOError;
+                err = 0;
+                break;
+            } else {
+                if(readFrames == -EPIPE) {
+                    errorState = QAudio::UnderrunError;
+                    err = snd_pcm_prepare(handle);
+                } else if(readFrames == -ESTRPIPE) {
+                    err = snd_pcm_prepare(handle);
+                }
+                if(err != 0) break;
+            }
+            count++;
+        }
+
+    }
+
+    bytesRead += bytesInRingbufferBeforeRead;
+
+    if (bytesRead > 0) {
+        // got some send it onward
+#ifdef DEBUG_AUDIO
+        qDebug() << "frames to write to QIODevice = " <<
+            snd_pcm_bytes_to_frames( handle, (int)bytesRead ) << " (" << bytesRead << ") bytes";
+#endif
+        if (deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
+            return 0;
+
+        if (pullMode) {
+            qint64 l = 0;
+            qint64 bytesWritten = 0;
+            while (ringBuffer.bytesOfDataInBuffer() > 0) {
+                l = audioSource->write(ringBuffer.availableData(), ringBuffer.availableDataBlockSize());
+                if (l > 0) {
+                    ringBuffer.readBytes(l);
+                    bytesWritten += l;
+                } else {
+                    break;
+                }
+            }
+
+            if (l < 0) {
+                close();
+                errorState = QAudio::IOError;
+                deviceState = QAudio::StoppedState;
+                emit stateChanged(deviceState);
+            } else if (l == 0 && bytesWritten == 0) {
+                if (deviceState != QAudio::IdleState) {
+                    errorState = QAudio::NoError;
+                    deviceState = QAudio::IdleState;
+                    emit stateChanged(deviceState);
+                }
+            } else {
+                bytesAvailable -= bytesWritten;
+                totalTimeValue += bytesWritten;
+                resuming = false;
+                if (deviceState != QAudio::ActiveState) {
+                    errorState = QAudio::NoError;
+                    deviceState = QAudio::ActiveState;
+                    emit stateChanged(deviceState);
+                }
+            }
+
+            return bytesWritten;
+        } else {
+            while (ringBuffer.bytesOfDataInBuffer() > 0) {
+                int size = ringBuffer.availableDataBlockSize();
+                memcpy(data, ringBuffer.availableData(), size);
+                data += size;
+                ringBuffer.readBytes(size);
+            }
+
+            bytesAvailable -= bytesRead;
+            totalTimeValue += bytesRead;
+            resuming = false;
+            if (deviceState != QAudio::ActiveState) {
+                errorState = QAudio::NoError;
+                deviceState = QAudio::ActiveState;
+                emit stateChanged(deviceState);
+            }
+
+            return bytesRead;
+        }
+    }
+
+    return 0;
+}
+
+void QAudioInputPrivate::resume()
+{
+    if(deviceState == QAudio::SuspendedState) {
+        int err = 0;
+
+        if(handle) {
+            err = snd_pcm_prepare( handle );
+            if(err < 0)
+                xrun_recovery(err);
+
+            err = snd_pcm_start(handle);
+            if(err < 0)
+                xrun_recovery(err);
+
+            bytesAvailable = buffer_size;
+        }
+        resuming = true;
+        deviceState = QAudio::ActiveState;
+        int chunks = buffer_size/period_size;
+        timer->start(period_time*chunks/2000);
+        emit stateChanged(deviceState);
+    }
+}
+
+void QAudioInputPrivate::setBufferSize(int value)
+{
+    buffer_size = value;
+}
+
+int QAudioInputPrivate::bufferSize() const
+{
+    return buffer_size;
+}
+
+int QAudioInputPrivate::periodSize() const
+{
+    return period_size;
+}
+
+void QAudioInputPrivate::setNotifyInterval(int ms)
+{
+    intervalTime = qMax(0, ms);
+}
+
+int QAudioInputPrivate::notifyInterval() const
+{
+    return intervalTime;
+}
+
+qint64 QAudioInputPrivate::processedUSecs() const
+{
+    qint64 result = qint64(1000000) * totalTimeValue /
+        (settings.channels()*(settings.sampleSize()/8)) /
+        settings.frequency();
+
+    return result;
+}
+
+void QAudioInputPrivate::suspend()
+{
+    if(deviceState == QAudio::ActiveState||resuming) {
+        timer->stop();
+        deviceState = QAudio::SuspendedState;
+        emit stateChanged(deviceState);
+    }
+}
+
+void QAudioInputPrivate::userFeed()
+{
+    if(deviceState == QAudio::StoppedState || deviceState == QAudio::SuspendedState)
+        return;
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :userFeed() IN";
+#endif
+    deviceReady();
+}
+
+bool QAudioInputPrivate::deviceReady()
+{
+    if(pullMode) {
+        // reads some audio data and writes it to QIODevice
+        read(0, buffer_size);
+    } else {
+        // emits readyRead() so user will call read() on QIODevice to get some audio data
+        InputPrivate* a = qobject_cast<InputPrivate*>(audioSource);
+        a->trigger();
+    }
+    bytesAvailable = checkBytesReady();
+
+    if(deviceState != QAudio::ActiveState)
+        return true;
+
+    if (bytesAvailable < 0) {
+        // bytesAvailable as negative is error code, try to recover from it.
+        xrun_recovery(bytesAvailable);
+        bytesAvailable = checkBytesReady();
+        if (bytesAvailable < 0) {
+            // recovery failed must stop and set error.
+            close();
+            errorState = QAudio::IOError;
+            deviceState = QAudio::StoppedState;
+            emit stateChanged(deviceState);
+            return 0;
+        }
+    }
+
+    if(intervalTime && (timeStamp.elapsed() + elapsedTimeOffset) > intervalTime) {
+        emit notify();
+        elapsedTimeOffset = timeStamp.elapsed() + elapsedTimeOffset - intervalTime;
+        timeStamp.restart();
+    }
+    return true;
+}
+
+qint64 QAudioInputPrivate::elapsedUSecs() const
+{
+    if (deviceState == QAudio::StoppedState)
+        return 0;
+
+    return clockStamp.elapsed()*1000;
+}
+
+void QAudioInputPrivate::reset()
+{
+    if(handle)
+        snd_pcm_reset(handle);
+    stop();
+    bytesAvailable = 0;
+}
+
+void QAudioInputPrivate::drain()
+{
+    if(handle)
+        snd_pcm_drain(handle);
+}
+
+InputPrivate::InputPrivate(QAudioInputPrivate* audio)
+{
+    audioDevice = qobject_cast<QAudioInputPrivate*>(audio);
+}
+
+InputPrivate::~InputPrivate()
+{
+}
+
+qint64 InputPrivate::readData( char* data, qint64 len)
+{
+    return audioDevice->read(data,len);
+}
+
+qint64 InputPrivate::writeData(const char* data, qint64 len)
+{
+    Q_UNUSED(data)
+    Q_UNUSED(len)
+    return 0;
+}
+
+void InputPrivate::trigger()
+{
+    emit readyRead();
+}
+
+RingBuffer::RingBuffer() :
+        m_head(0),
+        m_tail(0)
+{
+}
+
+void RingBuffer::resize(int size)
+{
+    m_data.resize(size);
+}
+
+int RingBuffer::bytesOfDataInBuffer() const
+{
+    if (m_head < m_tail)
+        return m_tail - m_head;
+    else if (m_tail < m_head)
+        return m_data.size() + m_tail - m_head;
+    else
+        return 0;
+}
+
+int RingBuffer::freeBytes() const
+{
+    if (m_head > m_tail)
+        return m_head - m_tail - 1;
+    else if (m_tail > m_head)
+        return m_data.size() - m_tail + m_head - 1;
+    else
+        return m_data.size() - 1;
+}
+
+const char *RingBuffer::availableData() const
+{
+    return (m_data.constData() + m_head);
+}
+
+int RingBuffer::availableDataBlockSize() const
+{
+    if (m_head > m_tail)
+        return m_data.size() - m_head;
+    else if (m_tail > m_head)
+        return m_tail - m_head;
+    else
+        return 0;
+}
+
+void RingBuffer::readBytes(int bytes)
+{
+    m_head = (m_head + bytes) % m_data.size();
+}
+
+void RingBuffer::write(char *data, int len)
+{
+    if (m_tail + len < m_data.size()) {
+        memcpy(m_data.data() + m_tail, data, len);
+        m_tail += len;
+    } else {
+        int bytesUntilEnd = m_data.size() - m_tail;
+        memcpy(m_data.data() + m_tail, data, bytesUntilEnd);
+        if (len - bytesUntilEnd > 0)
+            memcpy(m_data.data(), data + bytesUntilEnd, len - bytesUntilEnd);
+        m_tail = len - bytesUntilEnd;
+    }
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qaudioinput_alsa_p.cpp"
diff --git a/src/multimediakit/audio/qaudioinput_alsa_p.h b/src/multimediakit/audio/qaudioinput_alsa_p.h
new file mode 100644
index 000000000..a6f371642
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput_alsa_p.h
@@ -0,0 +1,183 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIOINPUTALSA_H
+#define QAUDIOINPUTALSA_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 "qaudio.h"
+#include "qaudiodeviceinfo.h"
+#include "qaudiosystem.h"
+
+QT_BEGIN_NAMESPACE
+
+class InputPrivate;
+
+class RingBuffer
+{
+public:
+    RingBuffer();
+
+    void resize(int size);
+
+    int bytesOfDataInBuffer() const;
+    int freeBytes() const;
+
+    const char *availableData() const;
+    int availableDataBlockSize() const;
+    void readBytes(int bytes);
+
+    void write(char *data, int len);
+
+private:
+    int m_head;
+    int m_tail;
+
+    QByteArray m_data;
+};
+
+class QAudioInputPrivate : public QAbstractAudioInput
+{
+    Q_OBJECT
+public:
+    QAudioInputPrivate(const QByteArray &device);
+    ~QAudioInputPrivate();
+
+    qint64 read(char* data, qint64 len);
+
+    void start(QIODevice* device);
+    QIODevice* start();
+    void stop();
+    void reset();
+    void suspend();
+    void resume();
+    int bytesReady() 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;
+    bool resuming;
+    snd_pcm_t* handle;
+    qint64 totalTimeValue;
+    QIODevice* audioSource;
+    QAudioFormat settings;
+    QAudio::Error errorState;
+    QAudio::State deviceState;
+
+private slots:
+    void userFeed();
+    bool deviceReady();
+
+private:
+    int checkBytesReady();
+    int xrun_recovery(int err);
+    int setFormat();
+    bool open();
+    void close();
+    void drain();
+
+    QTimer* timer;
+    QTime timeStamp;
+    QTime clockStamp;
+    qint64 elapsedTimeOffset;
+    int intervalTime;
+    RingBuffer ringBuffer;
+    int bytesAvailable;
+    QByteArray m_device;
+    bool pullMode;
+    int buffer_size;
+    int period_size;
+    unsigned int buffer_time;
+    unsigned int period_time;
+    snd_pcm_uframes_t buffer_frames;
+    snd_pcm_uframes_t period_frames;
+    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;
+};
+
+class InputPrivate : public QIODevice
+{
+    Q_OBJECT
+public:
+    InputPrivate(QAudioInputPrivate* audio);
+    ~InputPrivate();
+
+    qint64 readData( char* data, qint64 len);
+    qint64 writeData(const char* data, qint64 len);
+
+    void trigger();
+private:
+    QAudioInputPrivate *audioDevice;
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimediakit/audio/qaudioinput_mac_p.cpp b/src/multimediakit/audio/qaudioinput_mac_p.cpp
new file mode 100644
index 000000000..8c3bbe600
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput_mac_p.cpp
@@ -0,0 +1,989 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// INTERNAL USE ONLY: Do NOT use for any other purpose.
+//
+
+#include <QtCore/qendian.h>
+#include <QtCore/qtimer.h>
+#include <QtCore/qdebug.h>
+
+#include <qaudioinput.h>
+
+#include "qaudio_mac_p.h"
+#include "qaudioinput_mac_p.h"
+#include "qaudiodeviceinfo_mac_p.h"
+
+QT_BEGIN_NAMESPACE
+
+
+namespace QtMultimediaKitInternal
+{
+
+static const int default_buffer_size = 4 * 1024;
+
+class QAudioBufferList
+{
+public:
+    QAudioBufferList(AudioStreamBasicDescription const& streamFormat):
+        owner(false),
+        sf(streamFormat)
+    {
+        const bool isInterleaved = (sf.mFormatFlags & kAudioFormatFlagIsNonInterleaved) == 0;
+        const int numberOfBuffers = isInterleaved ? 1 : sf.mChannelsPerFrame;
+
+        dataSize = 0;
+
+        bfs = reinterpret_cast<AudioBufferList*>(qMalloc(sizeof(AudioBufferList) +
+                                                                (sizeof(AudioBuffer) * numberOfBuffers)));
+
+        bfs->mNumberBuffers = numberOfBuffers;
+        for (int i = 0; i < numberOfBuffers; ++i) {
+            bfs->mBuffers[i].mNumberChannels = isInterleaved ? numberOfBuffers : 1;
+            bfs->mBuffers[i].mDataByteSize = 0;
+            bfs->mBuffers[i].mData = 0;
+        }
+    }
+
+    QAudioBufferList(AudioStreamBasicDescription const& streamFormat, char* buffer, int bufferSize):
+        owner(false),
+        sf(streamFormat),
+        bfs(0)
+    {
+        dataSize = bufferSize;
+
+        bfs = reinterpret_cast<AudioBufferList*>(qMalloc(sizeof(AudioBufferList) + sizeof(AudioBuffer)));
+
+        bfs->mNumberBuffers = 1;
+        bfs->mBuffers[0].mNumberChannels = 1;
+        bfs->mBuffers[0].mDataByteSize = dataSize;
+        bfs->mBuffers[0].mData = buffer;
+    }
+
+    QAudioBufferList(AudioStreamBasicDescription const& streamFormat, int framesToBuffer):
+        owner(true),
+        sf(streamFormat),
+        bfs(0)
+    {
+        const bool isInterleaved = (sf.mFormatFlags & kAudioFormatFlagIsNonInterleaved) == 0;
+        const int numberOfBuffers = isInterleaved ? 1 : sf.mChannelsPerFrame;
+
+        dataSize = framesToBuffer * sf.mBytesPerFrame;
+
+        bfs = reinterpret_cast<AudioBufferList*>(qMalloc(sizeof(AudioBufferList) +
+                                                                (sizeof(AudioBuffer) * numberOfBuffers)));
+        bfs->mNumberBuffers = numberOfBuffers;
+        for (int i = 0; i < numberOfBuffers; ++i) {
+            bfs->mBuffers[i].mNumberChannels = isInterleaved ? numberOfBuffers : 1;
+            bfs->mBuffers[i].mDataByteSize = dataSize;
+            bfs->mBuffers[i].mData = qMalloc(dataSize);
+        }
+    }
+
+    ~QAudioBufferList()
+    {
+        if (owner) {
+            for (UInt32 i = 0; i < bfs->mNumberBuffers; ++i)
+                qFree(bfs->mBuffers[i].mData);
+        }
+
+        qFree(bfs);
+    }
+
+    AudioBufferList* audioBufferList() const
+    {
+        return bfs;
+    }
+
+    char* data(int buffer = 0) const
+    {
+        return static_cast<char*>(bfs->mBuffers[buffer].mData);
+    }
+
+    qint64 bufferSize(int buffer = 0) const
+    {
+        return bfs->mBuffers[buffer].mDataByteSize;
+    }
+
+    int frameCount(int buffer = 0) const
+    {
+        return bfs->mBuffers[buffer].mDataByteSize / sf.mBytesPerFrame;
+    }
+
+    int packetCount(int buffer = 0) const
+    {
+        return bfs->mBuffers[buffer].mDataByteSize / sf.mBytesPerPacket;
+    }
+
+    int packetSize() const
+    {
+        return sf.mBytesPerPacket;
+    }
+
+    void reset()
+    {
+        for (UInt32 i = 0; i < bfs->mNumberBuffers; ++i) {
+            bfs->mBuffers[i].mDataByteSize = dataSize;
+            bfs->mBuffers[i].mData = 0;
+        }
+    }
+
+private:
+    bool    owner;
+    int     dataSize;
+    AudioStreamBasicDescription sf;
+    AudioBufferList* bfs;
+};
+
+class QAudioPacketFeeder
+{
+public:
+    QAudioPacketFeeder(QAudioBufferList* abl):
+        audioBufferList(abl)
+    {
+        totalPackets = audioBufferList->packetCount();
+        position = 0;
+    }
+
+    bool feed(AudioBufferList& dst, UInt32& packetCount)
+    {
+        if (position == totalPackets) {
+            dst.mBuffers[0].mDataByteSize = 0;
+            packetCount = 0;
+            return false;
+        }
+
+        if (totalPackets - position < packetCount)
+            packetCount = totalPackets - position;
+
+        dst.mBuffers[0].mDataByteSize = packetCount * audioBufferList->packetSize();
+        dst.mBuffers[0].mData = audioBufferList->data() + (position * audioBufferList->packetSize());
+
+        position += packetCount;
+
+        return true;
+    }
+
+    bool empty() const
+    {
+        return position == totalPackets;
+    }
+
+private:
+    UInt32 totalPackets;
+    UInt32 position;
+    QAudioBufferList*   audioBufferList;
+};
+
+class QAudioInputBuffer : public QObject
+{
+    Q_OBJECT
+
+public:
+    QAudioInputBuffer(int bufferSize,
+                        int maxPeriodSize,
+                        AudioStreamBasicDescription const& inputFormat,
+                        AudioStreamBasicDescription const& outputFormat,
+                        QObject* parent):
+        QObject(parent),
+        m_deviceError(false),
+        m_audioConverter(0),
+        m_inputFormat(inputFormat),
+        m_outputFormat(outputFormat)
+    {
+        m_maxPeriodSize = maxPeriodSize;
+        m_periodTime = m_maxPeriodSize / m_outputFormat.mBytesPerFrame * 1000 / m_outputFormat.mSampleRate;
+        m_buffer = new QAudioRingBuffer(bufferSize + (bufferSize % maxPeriodSize == 0 ? 0 : maxPeriodSize - (bufferSize % maxPeriodSize)));
+        m_inputBufferList = new QAudioBufferList(m_inputFormat);
+
+        m_flushTimer = new QTimer(this);
+        connect(m_flushTimer, SIGNAL(timeout()), SLOT(flushBuffer()));
+
+        if (toQAudioFormat(inputFormat) != toQAudioFormat(outputFormat)) {
+            if (AudioConverterNew(&m_inputFormat, &m_outputFormat, &m_audioConverter) != noErr) {
+                qWarning() << "QAudioInput: Unable to create an Audio Converter";
+                m_audioConverter = 0;
+            }
+        }
+    }
+
+    ~QAudioInputBuffer()
+    {
+        delete m_buffer;
+    }
+
+    qint64 renderFromDevice(AudioUnit audioUnit,
+                             AudioUnitRenderActionFlags* ioActionFlags,
+                             const AudioTimeStamp* inTimeStamp,
+                             UInt32 inBusNumber,
+                             UInt32 inNumberFrames)
+    {
+        const bool  pullMode = m_device == 0;
+
+        OSStatus    err;
+        qint64      framesRendered = 0;
+
+        m_inputBufferList->reset();
+        err = AudioUnitRender(audioUnit,
+                                ioActionFlags,
+                                inTimeStamp,
+                                inBusNumber,
+                                inNumberFrames,
+                                m_inputBufferList->audioBufferList());
+
+        if (m_audioConverter != 0) {
+            QAudioPacketFeeder  feeder(m_inputBufferList);
+
+            int     copied = 0;
+            const int available = m_buffer->free();
+
+            while (err == noErr && !feeder.empty()) {
+                QAudioRingBuffer::Region region = m_buffer->acquireWriteRegion(available);
+
+                if (region.second == 0)
+                    break;
+
+                AudioBufferList     output;
+                output.mNumberBuffers = 1;
+                output.mBuffers[0].mNumberChannels = 1;
+                output.mBuffers[0].mDataByteSize = region.second;
+                output.mBuffers[0].mData = region.first;
+
+                UInt32  packetSize = region.second / m_outputFormat.mBytesPerPacket;
+                err = AudioConverterFillComplexBuffer(m_audioConverter,
+                                                      converterCallback,
+                                                      &feeder,
+                                                      &packetSize,
+                                                      &output,
+                                                      0);
+                region.second = output.mBuffers[0].mDataByteSize;
+                copied += region.second;
+
+                m_buffer->releaseWriteRegion(region);
+            }
+
+            framesRendered += copied / m_outputFormat.mBytesPerFrame;
+        }
+        else {
+            const int available = m_inputBufferList->bufferSize();
+            bool    wecan = true;
+            int     copied = 0;
+
+            while (wecan && copied < available) {
+                QAudioRingBuffer::Region region = m_buffer->acquireWriteRegion(available - copied);
+
+                if (region.second > 0) {
+                    memcpy(region.first, m_inputBufferList->data() + copied, region.second);
+                    copied += region.second;
+                }
+                else
+                    wecan = false;
+
+                m_buffer->releaseWriteRegion(region);
+            }
+
+            framesRendered = copied / m_outputFormat.mBytesPerFrame;
+        }
+
+        if (pullMode && framesRendered > 0)
+            emit readyRead();
+
+        return framesRendered;
+    }
+
+    qint64 readBytes(char* data, qint64 len)
+    {
+        bool    wecan = true;
+        qint64  bytesCopied = 0;
+
+        len -= len % m_maxPeriodSize;
+        while (wecan && bytesCopied < len) {
+            QAudioRingBuffer::Region region = m_buffer->acquireReadRegion(len - bytesCopied);
+
+            if (region.second > 0) {
+                memcpy(data + bytesCopied, region.first, region.second);
+                bytesCopied += region.second;
+            }
+            else
+                wecan = false;
+
+            m_buffer->releaseReadRegion(region);
+        }
+
+        return bytesCopied;
+    }
+
+    void setFlushDevice(QIODevice* device)
+    {
+        if (m_device != device)
+            m_device = device;
+    }
+
+    void startFlushTimer()
+    {
+        if (m_device != 0) {
+            m_flushTimer->start((m_buffer->size() - (m_maxPeriodSize * 2)) / m_maxPeriodSize * m_periodTime);
+        }
+    }
+
+    void stopFlushTimer()
+    {
+        m_flushTimer->stop();
+    }
+
+    void flush(bool all = false)
+    {
+        if (m_device == 0)
+            return;
+
+        const int used = m_buffer->used();
+        const int readSize = all ? used : used - (used % m_maxPeriodSize);
+
+        if (readSize > 0) {
+            bool    wecan = true;
+            int     flushed = 0;
+
+            while (!m_deviceError && wecan && flushed < readSize) {
+                QAudioRingBuffer::Region region = m_buffer->acquireReadRegion(readSize - flushed);
+
+                if (region.second > 0) {
+                    int bytesWritten = m_device->write(region.first, region.second);
+                    if (bytesWritten < 0) {
+                        stopFlushTimer();
+                        m_deviceError = true;
+                    }
+                    else {
+                        region.second = bytesWritten;
+                        flushed += bytesWritten;
+                        wecan = bytesWritten != 0;
+                    }
+                }
+                else
+                    wecan = false;
+
+                m_buffer->releaseReadRegion(region);
+            }
+        }
+    }
+
+    void reset()
+    {
+        m_buffer->reset();
+        m_deviceError = false;
+    }
+
+    int available() const
+    {
+        return m_buffer->free();
+    }
+
+    int used() const
+    {
+        return m_buffer->used();
+    }
+
+signals:
+    void readyRead();
+
+private slots:
+    void flushBuffer()
+    {
+        flush();
+    }
+
+private:
+    bool        m_deviceError;
+    int         m_maxPeriodSize;
+    int         m_periodTime;
+    QIODevice*  m_device;
+    QTimer*     m_flushTimer;
+    QAudioRingBuffer*   m_buffer;
+    QAudioBufferList*   m_inputBufferList;
+    AudioConverterRef   m_audioConverter;
+    AudioStreamBasicDescription m_inputFormat;
+    AudioStreamBasicDescription m_outputFormat;
+
+    const static OSStatus as_empty = 'qtem';
+
+    // Converter callback
+    static OSStatus converterCallback(AudioConverterRef inAudioConverter,
+                                UInt32* ioNumberDataPackets,
+                                AudioBufferList* ioData,
+                                AudioStreamPacketDescription** outDataPacketDescription,
+                                void* inUserData)
+    {
+        Q_UNUSED(inAudioConverter);
+        Q_UNUSED(outDataPacketDescription);
+
+        QAudioPacketFeeder* feeder = static_cast<QAudioPacketFeeder*>(inUserData);
+
+        if (!feeder->feed(*ioData, *ioNumberDataPackets))
+            return as_empty;
+
+        return noErr;
+    }
+};
+
+
+class MacInputDevice : public QIODevice
+{
+    Q_OBJECT
+
+public:
+    MacInputDevice(QAudioInputBuffer* audioBuffer, QObject* parent):
+        QIODevice(parent),
+        m_audioBuffer(audioBuffer)
+    {
+        open(QIODevice::ReadOnly | QIODevice::Unbuffered);
+        connect(m_audioBuffer, SIGNAL(readyRead()), SIGNAL(readyRead()));
+    }
+
+    qint64 readData(char* data, qint64 len)
+    {
+        return m_audioBuffer->readBytes(data, len);
+    }
+
+    qint64 writeData(const char* data, qint64 len)
+    {
+        Q_UNUSED(data);
+        Q_UNUSED(len);
+
+        return 0;
+    }
+
+    bool isSequential() const
+    {
+        return true;
+    }
+
+private:
+    QAudioInputBuffer*   m_audioBuffer;
+};
+
+}
+
+
+QAudioInputPrivate::QAudioInputPrivate(const QByteArray& device)
+{
+    QDataStream ds(device);
+    quint32 did, mode;
+
+    ds >> did >> mode;
+
+    if (QAudio::Mode(mode) == QAudio::AudioOutput)
+        errorCode = QAudio::OpenError;
+    else {
+        audioDeviceInfo = new QAudioDeviceInfoInternal(device, QAudio::AudioInput);
+        isOpen = false;
+        audioDeviceId = AudioDeviceID(did);
+        audioUnit = 0;
+        startTime = 0;
+        totalFrames = 0;
+        audioBuffer = 0;
+        internalBufferSize = QtMultimediaKitInternal::default_buffer_size;
+        clockFrequency = AudioGetHostClockFrequency() / 1000;
+        errorCode = QAudio::NoError;
+        stateCode = QAudio::StoppedState;
+
+        intervalTimer = new QTimer(this);
+        intervalTimer->setInterval(1000);
+        connect(intervalTimer, SIGNAL(timeout()), SIGNAL(notify()));
+    }
+}
+
+QAudioInputPrivate::~QAudioInputPrivate()
+{
+    close();
+    delete audioDeviceInfo;
+}
+
+bool QAudioInputPrivate::open()
+{
+    UInt32  size = 0;
+
+    if (isOpen)
+        return true;
+
+    ComponentDescription    cd;
+    cd.componentType = kAudioUnitType_Output;
+    cd.componentSubType = kAudioUnitSubType_HALOutput;
+    cd.componentManufacturer = kAudioUnitManufacturer_Apple;
+    cd.componentFlags = 0;
+    cd.componentFlagsMask = 0;
+
+    // Open
+    Component cp = FindNextComponent(NULL, &cd);
+    if (cp == 0) {
+        qWarning() << "QAudioInput: Failed to find HAL Output component";
+        return false;
+    }
+
+    if (OpenAComponent(cp, &audioUnit) != noErr) {
+        qWarning() << "QAudioInput: Unable to Open Output Component";
+        return false;
+    }
+
+    // Set mode
+    // switch to input mode
+    UInt32 enable = 1;
+    if (AudioUnitSetProperty(audioUnit,
+                               kAudioOutputUnitProperty_EnableIO,
+                               kAudioUnitScope_Input,
+                               1,
+                               &enable,
+                               sizeof(enable)) != noErr) {
+        qWarning() << "QAudioInput: Unable to switch to input mode (Enable Input)";
+        return false;
+    }
+
+    enable = 0;
+    if (AudioUnitSetProperty(audioUnit,
+                            kAudioOutputUnitProperty_EnableIO,
+                            kAudioUnitScope_Output,
+                            0,
+                            &enable,
+                            sizeof(enable)) != noErr) {
+        qWarning() << "QAudioInput: Unable to switch to input mode (Disable output)";
+        return false;
+    }
+
+    // register callback
+    AURenderCallbackStruct cb;
+    cb.inputProc = inputCallback;
+    cb.inputProcRefCon = this;
+
+    if (AudioUnitSetProperty(audioUnit,
+                               kAudioOutputUnitProperty_SetInputCallback,
+                               kAudioUnitScope_Global,
+                               0,
+                               &cb,
+                               sizeof(cb)) != noErr) {
+        qWarning() << "QAudioInput: Failed to set AudioUnit callback";
+        return false;
+    }
+
+    // Set Audio Device
+    if (AudioUnitSetProperty(audioUnit,
+                                kAudioOutputUnitProperty_CurrentDevice,
+                                kAudioUnitScope_Global,
+                                0,
+                                &audioDeviceId,
+                                sizeof(audioDeviceId)) != noErr) {
+        qWarning() << "QAudioInput: Unable to use configured device";
+        return false;
+    }
+
+    // Set format
+    // Wanted
+    streamFormat = toAudioStreamBasicDescription(audioFormat);
+
+    // Required on unit
+    if (audioFormat == audioDeviceInfo->preferredFormat()) {
+        deviceFormat = streamFormat;
+        AudioUnitSetProperty(audioUnit,
+                               kAudioUnitProperty_StreamFormat,
+                               kAudioUnitScope_Output,
+                               1,
+                               &deviceFormat,
+                               sizeof(deviceFormat));
+    }
+    else {
+        size = sizeof(deviceFormat);
+        if (AudioUnitGetProperty(audioUnit,
+                                    kAudioUnitProperty_StreamFormat,
+                                    kAudioUnitScope_Input,
+                                    1,
+                                    &deviceFormat,
+                                    &size) != noErr) {
+            qWarning() << "QAudioInput: Unable to retrieve device format";
+            return false;
+        }
+
+        if (AudioUnitSetProperty(audioUnit,
+                                   kAudioUnitProperty_StreamFormat,
+                                   kAudioUnitScope_Output,
+                                   1,
+                                   &deviceFormat,
+                                   sizeof(deviceFormat)) != noErr) {
+            qWarning() << "QAudioInput: Unable to set device format";
+            return false;
+        }
+    }
+
+    // Setup buffers
+    UInt32 numberOfFrames;
+    size = sizeof(UInt32);
+    if (AudioUnitGetProperty(audioUnit,
+                                kAudioDevicePropertyBufferFrameSize,
+                                kAudioUnitScope_Global,
+                                0,
+                                &numberOfFrames,
+                                &size) != noErr) {
+        qWarning() << "QAudioInput: Failed to get audio period size";
+        return false;
+    }
+
+    // Allocate buffer
+    periodSizeBytes = numberOfFrames * streamFormat.mBytesPerFrame;
+
+    if (internalBufferSize < periodSizeBytes * 2)
+        internalBufferSize = periodSizeBytes * 2;
+    else
+        internalBufferSize -= internalBufferSize % streamFormat.mBytesPerFrame;
+
+    audioBuffer = new QtMultimediaKitInternal::QAudioInputBuffer(internalBufferSize,
+                                        periodSizeBytes,
+                                        deviceFormat,
+                                        streamFormat,
+                                        this);
+
+    audioIO = new QtMultimediaKitInternal::MacInputDevice(audioBuffer, this);
+
+    // Init
+    if (AudioUnitInitialize(audioUnit) != noErr) {
+        qWarning() << "QAudioInput: Failed to initialize AudioUnit";
+        return false;
+    }
+
+    isOpen = true;
+
+    return isOpen;
+}
+
+void QAudioInputPrivate::close()
+{
+    if (audioUnit != 0) {
+        AudioOutputUnitStop(audioUnit);
+        AudioUnitUninitialize(audioUnit);
+        CloseComponent(audioUnit);
+    }
+
+    delete audioBuffer;
+}
+
+QAudioFormat QAudioInputPrivate::format() const
+{
+    return audioFormat;
+}
+
+void QAudioInputPrivate::setFormat(const QAudioFormat& fmt)
+{
+    if (stateCode == QAudio::StoppedState)
+        audioFormat = fmt;
+}
+
+void QAudioInputPrivate::start(QIODevice* device)
+{
+    QIODevice*  op = device;
+
+    if (!audioDeviceInfo->isFormatSupported(audioFormat) || !open()) {
+        stateCode = QAudio::StoppedState;
+        errorCode = QAudio::OpenError;
+        return;
+    }
+
+    reset();
+    audioBuffer->reset();
+    audioBuffer->setFlushDevice(op);
+
+    if (op == 0)
+        op = audioIO;
+
+    // Start
+    startTime = AudioGetCurrentHostTime();
+    totalFrames = 0;
+
+    audioThreadStart();
+
+    stateCode = QAudio::ActiveState;
+    errorCode = QAudio::NoError;
+    emit stateChanged(stateCode);
+}
+
+QIODevice* QAudioInputPrivate::start()
+{
+    QIODevice*  op = 0;
+
+    if (!audioDeviceInfo->isFormatSupported(audioFormat) || !open()) {
+        stateCode = QAudio::StoppedState;
+        errorCode = QAudio::OpenError;
+        return audioIO;
+    }
+
+    reset();
+    audioBuffer->reset();
+    audioBuffer->setFlushDevice(op);
+
+    if (op == 0)
+        op = audioIO;
+
+    // Start
+    startTime = AudioGetCurrentHostTime();
+    totalFrames = 0;
+
+    audioThreadStart();
+
+    stateCode = QAudio::ActiveState;
+    errorCode = QAudio::NoError;
+    emit stateChanged(stateCode);
+
+    return op;
+}
+
+void QAudioInputPrivate::stop()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode != QAudio::StoppedState) {
+        audioThreadStop();
+        audioBuffer->flush(true);
+
+        errorCode = QAudio::NoError;
+        stateCode = QAudio::StoppedState;
+        QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
+    }
+}
+
+void QAudioInputPrivate::reset()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode != QAudio::StoppedState) {
+        audioThreadStop();
+
+        errorCode = QAudio::NoError;
+        stateCode = QAudio::StoppedState;
+        QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
+    }
+}
+
+void QAudioInputPrivate::suspend()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode == QAudio::ActiveState || stateCode == QAudio::IdleState) {
+        audioThreadStop();
+
+        errorCode = QAudio::NoError;
+        stateCode = QAudio::SuspendedState;
+        QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
+    }
+}
+
+void QAudioInputPrivate::resume()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode == QAudio::SuspendedState) {
+        audioThreadStart();
+
+        errorCode = QAudio::NoError;
+        stateCode = QAudio::ActiveState;
+        QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
+    }
+}
+
+int QAudioInputPrivate::bytesReady() const
+{
+    return audioBuffer->used();
+}
+
+int QAudioInputPrivate::periodSize() const
+{
+    return periodSizeBytes;
+}
+
+void QAudioInputPrivate::setBufferSize(int bs)
+{
+    internalBufferSize = bs;
+}
+
+int QAudioInputPrivate::bufferSize() const
+{
+    return internalBufferSize;
+}
+
+void QAudioInputPrivate::setNotifyInterval(int milliSeconds)
+{
+    if (intervalTimer->interval() == milliSeconds)
+        return;
+
+    if (milliSeconds <= 0)
+        milliSeconds = 0;
+
+    intervalTimer->setInterval(milliSeconds);
+}
+
+int QAudioInputPrivate::notifyInterval() const
+{
+    return intervalTimer->interval();
+}
+
+qint64 QAudioInputPrivate::processedUSecs() const
+{
+    return totalFrames * 1000000 / audioFormat.frequency();
+}
+
+qint64 QAudioInputPrivate::elapsedUSecs() const
+{
+    if (stateCode == QAudio::StoppedState)
+        return 0;
+
+    return (AudioGetCurrentHostTime() - startTime) / (clockFrequency / 1000);
+}
+
+QAudio::Error QAudioInputPrivate::error() const
+{
+    return errorCode;
+}
+
+QAudio::State QAudioInputPrivate::state() const
+{
+    return stateCode;
+}
+
+void QAudioInputPrivate::audioThreadStop()
+{
+    stopTimers();
+    if (audioThreadState.testAndSetAcquire(Running, Stopped))
+        threadFinished.wait(&mutex);
+}
+
+void QAudioInputPrivate::audioThreadStart()
+{
+    startTimers();
+    audioThreadState = Running;
+    AudioOutputUnitStart(audioUnit);
+}
+
+void QAudioInputPrivate::audioDeviceStop()
+{
+    AudioOutputUnitStop(audioUnit);
+    audioThreadState = Stopped;
+    threadFinished.wakeOne();
+}
+
+void QAudioInputPrivate::audioDeviceFull()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode == QAudio::ActiveState) {
+        audioDeviceStop();
+
+        errorCode = QAudio::UnderrunError;
+        stateCode = QAudio::IdleState;
+        QMetaObject::invokeMethod(this, "deviceStopped", Qt::QueuedConnection);
+    }
+}
+
+void QAudioInputPrivate::audioDeviceError()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode == QAudio::ActiveState) {
+        audioDeviceStop();
+
+        errorCode = QAudio::IOError;
+        stateCode = QAudio::StoppedState;
+        QMetaObject::invokeMethod(this, "deviceStopped", Qt::QueuedConnection);
+    }
+}
+
+void QAudioInputPrivate::startTimers()
+{
+    audioBuffer->startFlushTimer();
+    if (intervalTimer->interval() > 0)
+        intervalTimer->start();
+}
+
+void QAudioInputPrivate::stopTimers()
+{
+    audioBuffer->stopFlushTimer();
+    intervalTimer->stop();
+}
+
+void QAudioInputPrivate::deviceStopped()
+{
+    stopTimers();
+    emit stateChanged(stateCode);
+}
+
+// Input callback
+OSStatus QAudioInputPrivate::inputCallback(void* inRefCon,
+                                AudioUnitRenderActionFlags* ioActionFlags,
+                                const AudioTimeStamp* inTimeStamp,
+                                UInt32 inBusNumber,
+                                UInt32 inNumberFrames,
+                                AudioBufferList* ioData)
+{
+    Q_UNUSED(ioData);
+
+    QAudioInputPrivate* d = static_cast<QAudioInputPrivate*>(inRefCon);
+
+    const int threadState = d->audioThreadState.fetchAndAddAcquire(0);
+    if (threadState == Stopped)
+        d->audioDeviceStop();
+    else {
+        qint64      framesWritten;
+
+        framesWritten = d->audioBuffer->renderFromDevice(d->audioUnit,
+                                                         ioActionFlags,
+                                                         inTimeStamp,
+                                                         inBusNumber,
+                                                         inNumberFrames);
+
+        if (framesWritten > 0)
+            d->totalFrames += framesWritten;
+        else if (framesWritten == 0)
+            d->audioDeviceFull();
+        else if (framesWritten < 0)
+            d->audioDeviceError();
+    }
+
+    return noErr;
+}
+
+
+QT_END_NAMESPACE
+
+#include "qaudioinput_mac_p.moc"
diff --git a/src/multimediakit/audio/qaudioinput_mac_p.h b/src/multimediakit/audio/qaudioinput_mac_p.h
new file mode 100644
index 000000000..61b6edf75
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput_mac_p.h
@@ -0,0 +1,171 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIOINPUT_MAC_P_H
+#define QAUDIOINPUT_MAC_P_H
+
+#include <CoreServices/CoreServices.h>
+#include <CoreAudio/CoreAudio.h>
+#include <AudioUnit/AudioUnit.h>
+#include <AudioToolbox/AudioToolbox.h>
+
+#include <QtCore/qobject.h>
+#include <QtCore/qmutex.h>
+#include <QtCore/qwaitcondition.h>
+#include <QtCore/qatomic.h>
+
+#include <qaudio.h>
+#include <qaudioformat.h>
+#include <qaudiosystem.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QTimer;
+class QIODevice;
+class QAbstractAudioDeviceInfo;
+
+namespace QtMultimediaKitInternal
+{
+class QAudioInputBuffer;
+}
+
+class QAudioInputPrivate : public QAbstractAudioInput
+{
+    Q_OBJECT
+
+public:
+    bool            isOpen;
+    int             periodSizeBytes;
+    int             internalBufferSize;
+    qint64          totalFrames;
+    QAudioFormat    audioFormat;
+    QIODevice*      audioIO;
+    AudioUnit       audioUnit;
+    AudioDeviceID   audioDeviceId;
+    Float64         clockFrequency;
+    UInt64          startTime;
+    QAudio::Error   errorCode;
+    QAudio::State   stateCode;
+    QtMultimediaKitInternal::QAudioInputBuffer*   audioBuffer;
+    QMutex          mutex;
+    QWaitCondition  threadFinished;
+    QAtomicInt      audioThreadState;
+    QTimer*         intervalTimer;
+    AudioStreamBasicDescription streamFormat;
+    AudioStreamBasicDescription deviceFormat;
+    QAbstractAudioDeviceInfo *audioDeviceInfo;
+
+    QAudioInputPrivate(const QByteArray& device);
+    ~QAudioInputPrivate();
+
+    bool open();
+    void close();
+
+    QAudioFormat format() const;
+    void setFormat(const QAudioFormat& fmt);
+
+    QIODevice* start();
+    void start(QIODevice* device);
+    void stop();
+    void reset();
+    void suspend();
+    void resume();
+    void idle();
+
+    int bytesReady() 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 audioThreadStart();
+    void audioThreadStop();
+
+    void audioDeviceStop();
+    void audioDeviceFull();
+    void audioDeviceError();
+
+    void startTimers();
+    void stopTimers();
+
+private slots:
+    void deviceStopped();
+
+private:
+    enum { Running, Stopped };
+
+    // Input callback
+    static OSStatus inputCallback(void* inRefCon,
+                                    AudioUnitRenderActionFlags* ioActionFlags,
+                                    const AudioTimeStamp* inTimeStamp,
+                                    UInt32 inBusNumber,
+                                    UInt32 inNumberFrames,
+                                    AudioBufferList* ioData);
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QAUDIOINPUT_MAC_P_H
diff --git a/src/multimediakit/audio/qaudioinput_symbian_p.cpp b/src/multimediakit/audio/qaudioinput_symbian_p.cpp
new file mode 100644
index 000000000..fe250cf32
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput_symbian_p.cpp
@@ -0,0 +1,594 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qaudioinput_symbian_p.h"
+
+QT_BEGIN_NAMESPACE
+
+//-----------------------------------------------------------------------------
+// Constants
+//-----------------------------------------------------------------------------
+
+const int PushInterval = 50; // ms
+
+
+//-----------------------------------------------------------------------------
+// Private class
+//-----------------------------------------------------------------------------
+
+SymbianAudioInputPrivate::SymbianAudioInputPrivate(
+                              QAudioInputPrivate *audioDevice)
+    :   m_audioDevice(audioDevice)
+{
+
+}
+
+SymbianAudioInputPrivate::~SymbianAudioInputPrivate()
+{
+
+}
+
+qint64 SymbianAudioInputPrivate::readData(char *data, qint64 len)
+{
+    qint64 totalRead = 0;
+
+    if (m_audioDevice->state() == QAudio::ActiveState ||
+        m_audioDevice->state() == QAudio::IdleState) {
+
+        while (totalRead < len) {
+            const qint64 read = m_audioDevice->read(data + totalRead,
+                                                    len - totalRead);
+            if (read > 0)
+                totalRead += read;
+            else
+                break;
+        }
+    }
+
+    return totalRead;
+}
+
+qint64 SymbianAudioInputPrivate::writeData(const char *data, qint64 len)
+{
+    Q_UNUSED(data)
+    Q_UNUSED(len)
+    return 0;
+}
+
+void SymbianAudioInputPrivate::dataReady()
+{
+    emit readyRead();
+}
+
+
+//-----------------------------------------------------------------------------
+// Public functions
+//-----------------------------------------------------------------------------
+
+QAudioInputPrivate::QAudioInputPrivate(const QByteArray &device)
+    :   m_device(device)
+    ,   m_clientBufferSize(SymbianAudio::DefaultBufferSize)
+    ,   m_notifyInterval(SymbianAudio::DefaultNotifyInterval)
+    ,   m_notifyTimer(new QTimer(this))
+    ,   m_lastNotifyPosition(0)
+    ,   m_error(QAudio::NoError)
+    ,   m_internalState(SymbianAudio::ClosedState)
+    ,   m_externalState(QAudio::StoppedState)
+    ,   m_pullMode(false)
+    ,   m_sink(0)
+    ,   m_pullTimer(new QTimer(this))
+    ,   m_devSound(0)
+    ,   m_devSoundBuffer(0)
+    ,   m_devSoundBufferSize(0)
+    ,   m_totalBytesReady(0)
+    ,   m_devSoundBufferPos(0)
+    ,   m_totalSamplesRecorded(0)
+{
+    qRegisterMetaType<CMMFBuffer *>("CMMFBuffer *");
+
+    connect(m_notifyTimer.data(), SIGNAL(timeout()),
+            this, SIGNAL(notifyTimerExpired()));
+
+    m_pullTimer->setInterval(PushInterval);
+    connect(m_pullTimer.data(), SIGNAL(timeout()), this, SLOT(pullData()));
+}
+
+void QAudioInputPrivate::setFormat(const QAudioFormat& fmt)
+{
+    m_format = fmt;
+}
+
+QAudioInputPrivate::~QAudioInputPrivate()
+{
+    close();
+}
+
+void QAudioInputPrivate::start(QIODevice *device)
+{
+    stop();
+
+    open();
+    if (SymbianAudio::ClosedState != m_internalState) {
+        m_pullMode = true;
+        m_sink = device;
+        m_elapsed.restart();
+    }
+}
+
+QIODevice* QAudioInputPrivate::start()
+{
+    stop();
+
+    open();
+    if (SymbianAudio::ClosedState != m_internalState) {
+        m_sink = new SymbianAudioInputPrivate(this);
+        m_sink->open(QIODevice::ReadOnly | QIODevice::Unbuffered);
+        m_elapsed.restart();
+    }
+
+    return m_sink;
+}
+
+void QAudioInputPrivate::stop()
+{
+    close();
+}
+
+void QAudioInputPrivate::reset()
+{
+    m_totalSamplesRecorded += getSamplesRecorded();
+    m_devSound->stop();
+    startRecording();
+}
+
+void QAudioInputPrivate::suspend()
+{
+    if (SymbianAudio::ActiveState == m_internalState
+        || SymbianAudio::IdleState == m_internalState) {
+        m_pullTimer->stop();
+        const qint64 samplesRecorded = getSamplesRecorded();
+        m_totalSamplesRecorded += samplesRecorded;
+
+        const bool paused = m_devSound->pause();
+        if (paused) {
+            if (m_devSoundBuffer)
+                m_devSoundBufferQ.append(m_devSoundBuffer);
+            m_devSoundBuffer = 0;
+            setState(SymbianAudio::SuspendedPausedState);
+        } else {
+            m_devSoundBuffer = 0;
+            m_devSoundBufferQ.clear();
+            m_devSoundBufferPos = 0;
+            setState(SymbianAudio::SuspendedStoppedState);
+        }
+    }
+}
+
+void QAudioInputPrivate::resume()
+{
+    if (QAudio::SuspendedState == m_externalState) {
+        if (SymbianAudio::SuspendedPausedState == m_internalState)
+            m_devSound->resume();
+        else
+            m_devSound->start();
+        startDataTransfer();
+    }
+}
+
+int QAudioInputPrivate::bytesReady() const
+{
+    Q_ASSERT(m_devSoundBufferPos <= m_totalBytesReady);
+    return m_totalBytesReady - m_devSoundBufferPos;
+}
+
+int QAudioInputPrivate::periodSize() const
+{
+    return bufferSize();
+}
+
+void QAudioInputPrivate::setBufferSize(int value)
+{
+    // Note that DevSound does not allow its client to specify the buffer size.
+    // This functionality is available via custom interfaces, but since these
+    // cannot be guaranteed to work across all DevSound implementations, we
+    // do not use them here.
+    // In order to comply with the expected bevahiour of QAudioInput, we store
+    // the value and return it from bufferSize(), but the underlying DevSound
+    // buffer size remains unchanged.
+    if (value > 0)
+        m_clientBufferSize = value;
+}
+
+int QAudioInputPrivate::bufferSize() const
+{
+    return m_devSoundBufferSize ? m_devSoundBufferSize : m_clientBufferSize;
+}
+
+void QAudioInputPrivate::setNotifyInterval(int ms)
+{
+    if (ms >= 0) {
+        //const int oldNotifyInterval = m_notifyInterval;
+        m_notifyInterval = ms;
+        if (m_notifyInterval && (SymbianAudio::ActiveState == m_internalState ||
+                                 SymbianAudio::IdleState == m_internalState))
+            m_notifyTimer->start(m_notifyInterval);
+        else
+            m_notifyTimer->stop();
+    }
+}
+
+int QAudioInputPrivate::notifyInterval() const
+{
+    return m_notifyInterval;
+}
+
+qint64 QAudioInputPrivate::processedUSecs() const
+{
+    int samplesPlayed = 0;
+    if (m_devSound && QAudio::SuspendedState != m_externalState)
+        samplesPlayed = getSamplesRecorded();
+
+    // Protect against division by zero
+    Q_ASSERT_X(m_format.frequency() > 0, Q_FUNC_INFO, "Invalid frequency");
+
+    const qint64 result = qint64(1000000) *
+                          (samplesPlayed + m_totalSamplesRecorded)
+                        / m_format.frequency();
+
+    return result;
+}
+
+qint64 QAudioInputPrivate::elapsedUSecs() const
+{
+    const qint64 result = (QAudio::StoppedState == state()) ?
+                              0 : m_elapsed.elapsed() * 1000;
+    return result;
+}
+
+QAudio::Error QAudioInputPrivate::error() const
+{
+    return m_error;
+}
+
+QAudio::State QAudioInputPrivate::state() const
+{
+    return m_externalState;
+}
+
+QAudioFormat QAudioInputPrivate::format() const
+{
+    return m_format;
+}
+
+
+//-----------------------------------------------------------------------------
+// Private functions
+//-----------------------------------------------------------------------------
+
+void QAudioInputPrivate::open()
+{
+    Q_ASSERT_X(SymbianAudio::ClosedState == m_internalState,
+        Q_FUNC_INFO, "DevSound already opened");
+
+    Q_ASSERT(!m_devSound);
+    m_devSound = new SymbianAudio::DevSoundWrapper(QAudio::AudioInput, this);
+
+    connect(m_devSound, SIGNAL(initializeComplete(int)),
+            this, SLOT(devsoundInitializeComplete(int)));
+    connect(m_devSound, SIGNAL(bufferToBeProcessed(CMMFBuffer *)),
+            this, SLOT(devsoundBufferToBeEmptied(CMMFBuffer *)));
+    connect(m_devSound, SIGNAL(processingError(int)),
+            this, SLOT(devsoundRecordError(int)));
+
+    setState(SymbianAudio::InitializingState);
+    m_devSound->initialize(m_format.codec());
+}
+
+void QAudioInputPrivate::startRecording()
+{
+    const int samplesRecorded = m_devSound->samplesProcessed();
+    Q_ASSERT(samplesRecorded == 0);
+
+    bool ok = m_devSound->setFormat(m_format);
+    if (ok)
+        ok = m_devSound->start();
+
+    if (ok) {
+        startDataTransfer();
+    } else {
+        setError(QAudio::OpenError);
+        close();
+    }
+}
+
+void QAudioInputPrivate::startDataTransfer()
+{
+    if (m_notifyInterval)
+        m_notifyTimer->start(m_notifyInterval);
+
+    if (m_pullMode)
+        m_pullTimer->start();
+
+    if (bytesReady()) {
+        setState(SymbianAudio::ActiveState);
+        if (!m_pullMode)
+            pushData();
+    } else {
+        if (QAudio::SuspendedState == m_externalState)
+            setState(SymbianAudio::ActiveState);
+        else
+            setState(SymbianAudio::IdleState);
+    }
+}
+
+CMMFDataBuffer* QAudioInputPrivate::currentBuffer() const
+{
+    CMMFDataBuffer *result = m_devSoundBuffer;
+    if (!result && !m_devSoundBufferQ.empty())
+        result = m_devSoundBufferQ.front();
+    return result;
+}
+
+void QAudioInputPrivate::pushData()
+{
+    Q_ASSERT_X(bytesReady(), Q_FUNC_INFO, "No data available");
+    Q_ASSERT_X(!m_pullMode, Q_FUNC_INFO, "pushData called when in pull mode");
+    qobject_cast<SymbianAudioInputPrivate *>(m_sink)->dataReady();
+}
+
+qint64 QAudioInputPrivate::read(char *data, qint64 len)
+{
+    // SymbianAudioInputPrivate is ready to read data
+
+    Q_ASSERT_X(!m_pullMode, Q_FUNC_INFO,
+        "read called when in pull mode");
+
+    qint64 bytesRead = 0;
+
+    CMMFDataBuffer *buffer = 0;
+    buffer = currentBuffer();
+    while (buffer && (bytesRead < len)) {
+        if (SymbianAudio::IdleState == m_internalState)
+            setState(SymbianAudio::ActiveState);
+
+        TDesC8 &inputBuffer = buffer->Data();
+
+        Q_ASSERT(inputBuffer.Length() >= m_devSoundBufferPos);
+        const qint64 inputBytes = inputBuffer.Length() - m_devSoundBufferPos;
+        const qint64 outputBytes = len - bytesRead;
+        const qint64 copyBytes = outputBytes < inputBytes ?
+                                     outputBytes : inputBytes;
+
+        memcpy(data, inputBuffer.Ptr() + m_devSoundBufferPos, copyBytes);
+
+        m_devSoundBufferPos += copyBytes;
+        data += copyBytes;
+        bytesRead += copyBytes;
+
+        if (inputBytes == copyBytes)
+            bufferEmptied();
+
+        buffer = currentBuffer();
+    }
+
+    return bytesRead;
+}
+
+void QAudioInputPrivate::notifyTimerExpired()
+{
+    const qint64 pos = processedUSecs();
+    if (pos > m_lastNotifyPosition) {
+        int count = (pos - m_lastNotifyPosition) / (m_notifyInterval * 1000);
+        while (count--) {
+            emit notify();
+            m_lastNotifyPosition += m_notifyInterval * 1000;
+        }
+    }
+}
+
+void QAudioInputPrivate::pullData()
+{
+    Q_ASSERT_X(m_pullMode, Q_FUNC_INFO,
+        "pullData called when in push mode");
+
+    CMMFDataBuffer *buffer = 0;
+    buffer = currentBuffer();
+    while (buffer) {
+        if (SymbianAudio::IdleState == m_internalState)
+            setState(SymbianAudio::ActiveState);
+
+        TDesC8 &inputBuffer = buffer->Data();
+
+        Q_ASSERT(inputBuffer.Length() >= m_devSoundBufferPos);
+        const qint64 inputBytes = inputBuffer.Length() - m_devSoundBufferPos;
+        const qint64 bytesPushed = m_sink->write(
+            (char*)inputBuffer.Ptr() + m_devSoundBufferPos, inputBytes);
+
+        m_devSoundBufferPos += bytesPushed;
+
+        if (inputBytes == bytesPushed)
+            bufferEmptied();
+
+        if (!bytesPushed)
+            break;
+
+        buffer = currentBuffer();
+    }
+}
+
+void QAudioInputPrivate::devsoundInitializeComplete(int err)
+{
+    Q_ASSERT_X(SymbianAudio::InitializingState == m_internalState,
+        Q_FUNC_INFO, "Invalid state");
+
+    if (!err && m_devSound->isFormatSupported(m_format))
+        startRecording();
+    else
+        setError(QAudio::OpenError);
+}
+
+void QAudioInputPrivate::devsoundBufferToBeEmptied(CMMFBuffer *baseBuffer)
+{
+    // Following receipt of this signal, DevSound should not provide another
+    // buffer until we have returned the current one.
+    Q_ASSERT_X(!m_devSoundBuffer, Q_FUNC_INFO, "Buffer already held");
+
+    CMMFDataBuffer *const buffer = static_cast<CMMFDataBuffer*>(baseBuffer);
+
+    if (!m_devSoundBufferSize)
+        m_devSoundBufferSize = buffer->Data().MaxLength();
+
+    m_totalBytesReady += buffer->Data().Length();
+
+    if (SymbianAudio::SuspendedPausedState == m_internalState) {
+        m_devSoundBufferQ.append(buffer);
+    } else {
+        // Will be returned to DevSoundWrapper by bufferProcessed().
+        m_devSoundBuffer = buffer;
+        m_devSoundBufferPos = 0;
+
+        if (bytesReady() && !m_pullMode)
+            pushData();
+    }
+}
+
+void QAudioInputPrivate::devsoundRecordError(int err)
+{
+    Q_UNUSED(err)
+    setError(QAudio::IOError);
+}
+
+void QAudioInputPrivate::bufferEmptied()
+{
+    m_devSoundBufferPos = 0;
+
+    if (m_devSoundBuffer) {
+        m_totalBytesReady -= m_devSoundBuffer->Data().Length();
+        m_devSoundBuffer = 0;
+        m_devSound->bufferProcessed();
+    } else {
+        Q_ASSERT(!m_devSoundBufferQ.empty());
+        m_totalBytesReady -= m_devSoundBufferQ.front()->Data().Length();
+        m_devSoundBufferQ.erase(m_devSoundBufferQ.begin());
+
+        // If the queue has been emptied, resume transfer from the hardware
+        if (m_devSoundBufferQ.empty())
+            if (!m_devSound->start())
+                setError(QAudio::IOError);
+    }
+
+    Q_ASSERT(m_totalBytesReady >= 0);
+}
+
+void QAudioInputPrivate::close()
+{
+    m_lastNotifyPosition = 0;
+    m_pullTimer->stop();
+
+    m_error = QAudio::NoError;
+
+    if (m_devSound)
+        m_devSound->stop();
+    delete m_devSound;
+    m_devSound = 0;
+
+    m_devSoundBuffer = 0;
+    m_devSoundBufferSize = 0;
+    m_totalBytesReady = 0;
+
+    if (!m_pullMode) // m_sink is owned
+        delete m_sink;
+    m_pullMode = false;
+    m_sink = 0;
+
+    m_devSoundBufferQ.clear();
+    m_devSoundBufferPos = 0;
+    m_totalSamplesRecorded = 0;
+
+    setState(SymbianAudio::ClosedState);
+}
+
+qint64 QAudioInputPrivate::getSamplesRecorded() const
+{
+    qint64 result = 0;
+    if (m_devSound)
+        result = qint64(m_devSound->samplesProcessed());
+    return result;
+}
+
+void QAudioInputPrivate::setError(QAudio::Error error)
+{
+    m_error = error;
+
+    // Although no state transition actually occurs here, a stateChanged event
+    // must be emitted to inform the client that the call to start() was
+    // unsuccessful.
+    if (QAudio::OpenError == error) {
+        emit stateChanged(QAudio::StoppedState);
+    } else {
+        if (QAudio::UnderrunError == error)
+            setState(SymbianAudio::IdleState);
+        else
+            // Close the DevSound instance.  This causes a transition to
+            // StoppedState.  This must be done asynchronously in case the
+            // current function was called from a DevSound event handler, in which
+            // case deleting the DevSound instance may cause an exception.
+            QMetaObject::invokeMethod(this, "close", Qt::QueuedConnection);
+    }
+}
+
+void QAudioInputPrivate::setState(SymbianAudio::State newInternalState)
+{
+    const QAudio::State oldExternalState = m_externalState;
+    m_internalState = newInternalState;
+    m_externalState = SymbianAudio::Utils::stateNativeToQt(m_internalState);
+
+    if (m_externalState != QAudio::ActiveState &&
+        m_externalState != QAudio::IdleState)
+        m_notifyTimer->stop();
+
+    if (m_externalState != oldExternalState)
+        emit stateChanged(m_externalState);
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qaudioinput_symbian_p.cpp"
diff --git a/src/multimediakit/audio/qaudioinput_symbian_p.h b/src/multimediakit/audio/qaudioinput_symbian_p.h
new file mode 100644
index 000000000..9f6128390
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput_symbian_p.h
@@ -0,0 +1,178 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIOINPUT_SYMBIAN_P_H
+#define QAUDIOINPUT_SYMBIAN_P_H
+
+#include <qaudiosystem.h>
+#include <QTime>
+#include <QTimer>
+#include "qaudio_symbian_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QAudioInputPrivate;
+
+class SymbianAudioInputPrivate : public QIODevice
+{
+    friend class QAudioInputPrivate;
+    Q_OBJECT
+public:
+    SymbianAudioInputPrivate(QAudioInputPrivate *audio);
+    ~SymbianAudioInputPrivate();
+
+    qint64 readData(char *data, qint64 len);
+    qint64 writeData(const char *data, qint64 len);
+
+    void dataReady();
+
+private:
+    QAudioInputPrivate *const m_audioDevice;
+};
+
+class QAudioInputPrivate
+    :   public QAbstractAudioInput
+{
+    friend class SymbianAudioInputPrivate;
+    Q_OBJECT
+public:
+    QAudioInputPrivate(const QByteArray &device);
+    ~QAudioInputPrivate();
+
+    // QAbstractAudioInput
+    void start(QIODevice *device);
+    QIODevice* start();
+    void stop();
+    void reset();
+    void suspend();
+    void resume();
+    int bytesReady() 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;
+    QAudioFormat format() const;
+    void setFormat(const QAudioFormat& fmt);
+
+private slots:
+    void notifyTimerExpired();
+    void pullData();
+    void devsoundInitializeComplete(int err);
+    void devsoundBufferToBeEmptied(CMMFBuffer *);
+    void devsoundRecordError(int err);
+
+
+private:
+   void open();
+   void startRecording();
+   void startDataTransfer();
+   CMMFDataBuffer* currentBuffer() const;
+   void pushData();
+   qint64 read(char *data, qint64 len);
+   void bufferEmptied();
+   Q_INVOKABLE void close();
+
+   qint64 getSamplesRecorded() const;
+
+   void setError(QAudio::Error error);
+   void setState(SymbianAudio::State state);
+
+private:
+    const QByteArray m_device;
+    QAudioFormat m_format;
+
+    int m_clientBufferSize;
+    int m_notifyInterval;
+    QScopedPointer<QTimer> m_notifyTimer;
+    qint64 m_lastNotifyPosition;
+    QTime m_elapsed;
+    QAudio::Error m_error;
+
+    SymbianAudio::State m_internalState;
+    QAudio::State m_externalState;
+
+    bool m_pullMode;
+    QIODevice *m_sink;
+
+    QScopedPointer<QTimer> m_pullTimer;
+
+    SymbianAudio::DevSoundWrapper* m_devSound;
+
+    // Latest buffer provided by DevSound, to be empied of data.
+    CMMFDataBuffer *m_devSoundBuffer;
+
+    int m_devSoundBufferSize;
+
+    // Total amount of data in buffers provided by DevSound
+    int m_totalBytesReady;
+
+    // Queue of buffers returned after call to CMMFDevSound::Pause().
+    QList<CMMFDataBuffer *> m_devSoundBufferQ;
+
+    // Current read position within m_devSoundBuffer
+    qint64 m_devSoundBufferPos;
+
+    // Samples recorded up to the last call to suspend().  It is necessary
+    // to cache this because suspend() is implemented using
+    // CMMFDevSound::Stop(), which resets DevSound's SamplesRecorded() counter.
+    quint32 m_totalSamplesRecorded;
+
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimediakit/audio/qaudioinput_win32_p.cpp b/src/multimediakit/audio/qaudioinput_win32_p.cpp
new file mode 100644
index 000000000..c258a2cbf
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput_win32_p.cpp
@@ -0,0 +1,649 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// INTERNAL USE ONLY: Do NOT use for any other purpose.
+//
+
+
+#include "qaudioinput_win32_p.h"
+
+QT_BEGIN_NAMESPACE
+
+//#define DEBUG_AUDIO 1
+
+QAudioInputPrivate::QAudioInputPrivate(const QByteArray &device)
+{
+    bytesAvailable = 0;
+    buffer_size = 0;
+    period_size = 0;
+    m_device = device;
+    totalTimeValue = 0;
+    intervalTime = 1000;
+    errorState = QAudio::NoError;
+    deviceState = QAudio::StoppedState;
+    audioSource = 0;
+    pullMode = true;
+    resuming = false;
+    finished = false;
+    waveBlockOffset = 0;
+}
+
+QAudioInputPrivate::~QAudioInputPrivate()
+{
+    stop();
+}
+
+void QT_WIN_CALLBACK QAudioInputPrivate::waveInProc( HWAVEIN hWaveIn, UINT uMsg,
+        DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 )
+{
+    Q_UNUSED(dwParam1)
+    Q_UNUSED(dwParam2)
+    Q_UNUSED(hWaveIn)
+
+    QAudioInputPrivate* qAudio;
+    qAudio = (QAudioInputPrivate*)(dwInstance);
+    if(!qAudio)
+        return;
+
+    QMutexLocker(&qAudio->mutex);
+
+    switch(uMsg) {
+        case WIM_OPEN:
+            break;
+        case WIM_DATA:
+            if(qAudio->waveFreeBlockCount > 0)
+                qAudio->waveFreeBlockCount--;
+            qAudio->feedback();
+            break;
+        case WIM_CLOSE:
+            qAudio->finished = true;
+            break;
+        default:
+            return;
+    }
+}
+
+WAVEHDR* QAudioInputPrivate::allocateBlocks(int size, int count)
+{
+    int i;
+    unsigned char* buffer;
+    WAVEHDR* blocks;
+    DWORD totalBufferSize = (size + sizeof(WAVEHDR))*count;
+
+    if((buffer=(unsigned char*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,
+                    totalBufferSize)) == 0) {
+        qWarning("QAudioInput: Memory allocation error");
+        return 0;
+    }
+    blocks = (WAVEHDR*)buffer;
+    buffer += sizeof(WAVEHDR)*count;
+    for(i = 0; i < count; i++) {
+        blocks[i].dwBufferLength = size;
+        blocks[i].lpData = (LPSTR)buffer;
+        blocks[i].dwBytesRecorded=0;
+        blocks[i].dwUser = 0L;
+        blocks[i].dwFlags = 0L;
+        blocks[i].dwLoops = 0L;
+        result = waveInPrepareHeader(hWaveIn,&blocks[i], sizeof(WAVEHDR));
+        if(result != MMSYSERR_NOERROR) {
+            qWarning("QAudioInput: Can't prepare block %d",i);
+            return 0;
+        }
+        buffer += size;
+    }
+    return blocks;
+}
+
+void QAudioInputPrivate::freeBlocks(WAVEHDR* blockArray)
+{
+    WAVEHDR* blocks = blockArray;
+
+    int count = buffer_size/period_size;
+
+    for(int i = 0; i < count; i++) {
+        waveInUnprepareHeader(hWaveIn,blocks, sizeof(WAVEHDR));
+        blocks++;
+    }
+    HeapFree(GetProcessHeap(), 0, blockArray);
+}
+
+QAudio::Error QAudioInputPrivate::error() const
+{
+    return errorState;
+}
+
+QAudio::State QAudioInputPrivate::state() const
+{
+    return deviceState;
+}
+
+void QAudioInputPrivate::setFormat(const QAudioFormat& fmt)
+{
+    if (deviceState == QAudio::StoppedState)
+        settings = fmt;
+}
+
+QAudioFormat QAudioInputPrivate::format() const
+{
+    return settings;
+}
+
+void QAudioInputPrivate::start(QIODevice* device)
+{
+    if(deviceState != QAudio::StoppedState)
+        close();
+
+    if(!pullMode && audioSource)
+        delete audioSource;
+
+    pullMode = true;
+    audioSource = device;
+
+    deviceState = QAudio::ActiveState;
+
+    if(!open())
+        return;
+
+    emit stateChanged(deviceState);
+}
+
+QIODevice* QAudioInputPrivate::start()
+{
+    if(deviceState != QAudio::StoppedState)
+        close();
+
+    if(!pullMode && audioSource)
+        delete audioSource;
+
+    pullMode = false;
+    audioSource = new InputPrivate(this);
+    audioSource->open(QIODevice::ReadOnly | QIODevice::Unbuffered);
+
+    deviceState = QAudio::IdleState;
+
+    if(!open())
+        return 0;
+
+    emit stateChanged(deviceState);
+
+    return audioSource;
+}
+
+void QAudioInputPrivate::stop()
+{
+    if(deviceState == QAudio::StoppedState)
+        return;
+
+    close();
+    emit stateChanged(deviceState);
+}
+
+bool QAudioInputPrivate::open()
+{
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
+#endif
+    header = 0;
+
+    period_size = 0;
+
+    if (!settings.isValid()) {
+        qWarning("QAudioInput: open error, invalid format.");
+    } else if (settings.channelCount() <= 0) {
+        qWarning("QAudioInput: open error, invalid number of channels (%d).",
+                 settings.channelCount());
+    } else if (settings.sampleSize() <= 0) {
+        qWarning("QAudioInput: open error, invalid sample size (%d).",
+                 settings.sampleSize());
+    } else if (settings.frequency() < 8000 || settings.frequency() > 48000) {
+        qWarning("QAudioInput: open error, frequency out of range (%d).", settings.frequency());
+    } else if (buffer_size == 0) {
+
+        buffer_size
+                = (settings.frequency()
+                * settings.channelCount()
+                * settings.sampleSize()
+#ifndef Q_OS_WINCE  // Default buffer size, 200ms, default period size is 40ms
+                + 39) / 40;
+        period_size = buffer_size / 5;
+    } else {
+        period_size = buffer_size / 5;
+#else               // For wince reduce size to 40ms for buffer size and 20ms period
+                + 199) / 200;
+        period_size = buffer_size / 2;
+    } else {
+        period_size = buffer_size / 2;
+#endif
+    }
+
+    if (period_size == 0) {
+        errorState = QAudio::OpenError;
+        deviceState = QAudio::StoppedState;
+        emit stateChanged(deviceState);
+        return false;
+    }
+
+    timeStamp.restart();
+    elapsedTimeOffset = 0;
+    wfx.nSamplesPerSec = settings.frequency();
+    wfx.wBitsPerSample = settings.sampleSize();
+    wfx.nChannels = settings.channels();
+    wfx.cbSize = 0;
+
+    wfx.wFormatTag = WAVE_FORMAT_PCM;
+    wfx.nBlockAlign = (wfx.wBitsPerSample >> 3) * wfx.nChannels;
+    wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec;
+
+    QDataStream ds(&m_device, QIODevice::ReadOnly);
+    quint32 deviceId;
+    ds >> deviceId;
+
+    if (waveInOpen(&hWaveIn, UINT_PTR(deviceId), &wfx,
+                (DWORD_PTR)&waveInProc,
+                (DWORD_PTR) this,
+                CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
+        errorState = QAudio::OpenError;
+        deviceState = QAudio::StoppedState;
+        emit stateChanged(deviceState);
+        qWarning("QAudioInput: failed to open audio device");
+        return false;
+    }
+    waveBlocks = allocateBlocks(period_size, buffer_size/period_size);
+    waveBlockOffset = 0;
+
+    if(waveBlocks == 0) {
+        errorState = QAudio::OpenError;
+        deviceState = QAudio::StoppedState;
+        emit stateChanged(deviceState);
+        qWarning("QAudioInput: failed to allocate blocks. open failed");
+        return false;
+    }
+
+    mutex.lock();
+    waveFreeBlockCount = buffer_size/period_size;
+    mutex.unlock();
+
+    for(int i=0; i<buffer_size/period_size; i++) {
+        result = waveInAddBuffer(hWaveIn, &waveBlocks[i], sizeof(WAVEHDR));
+        if(result != MMSYSERR_NOERROR) {
+            qWarning("QAudioInput: failed to setup block %d,err=%d",i,result);
+            errorState = QAudio::OpenError;
+            deviceState = QAudio::StoppedState;
+            emit stateChanged(deviceState);
+            return false;
+        }
+    }
+    result = waveInStart(hWaveIn);
+    if(result) {
+        qWarning("QAudioInput: failed to start audio input");
+        errorState = QAudio::OpenError;
+        deviceState = QAudio::StoppedState;
+        emit stateChanged(deviceState);
+        return false;
+    }
+    timeStampOpened.restart();
+    elapsedTimeOffset = 0;
+    totalTimeValue = 0;
+    errorState  = QAudio::NoError;
+    return true;
+}
+
+void QAudioInputPrivate::close()
+{
+    if(deviceState == QAudio::StoppedState)
+        return;
+
+    deviceState = QAudio::StoppedState;
+    waveInReset(hWaveIn);
+    waveInClose(hWaveIn);
+
+    int count = 0;
+    while(!finished && count < 500) {
+        count++;
+        Sleep(10);
+    }
+
+    mutex.lock();
+    for(int i=0; i<waveFreeBlockCount; i++)
+        waveInUnprepareHeader(hWaveIn,&waveBlocks[i],sizeof(WAVEHDR));
+    freeBlocks(waveBlocks);
+    mutex.unlock();
+}
+
+int QAudioInputPrivate::bytesReady() const
+{
+    if(period_size == 0 || buffer_size == 0)
+        return 0;
+
+    int buf = ((buffer_size/period_size)-waveFreeBlockCount)*period_size;
+    if(buf < 0)
+        buf = 0;
+    return buf;
+}
+
+qint64 QAudioInputPrivate::read(char* data, qint64 len)
+{
+    bool done = false;
+
+    char*  p = data;
+    qint64 l = 0;
+    qint64 written = 0;
+    while(!done) {
+        // Read in some audio data
+        if(waveBlocks[header].dwBytesRecorded > 0 && waveBlocks[header].dwFlags & WHDR_DONE) {
+            if(pullMode) {
+                l = audioSource->write(waveBlocks[header].lpData + waveBlockOffset,
+                        waveBlocks[header].dwBytesRecorded - waveBlockOffset);
+#ifdef DEBUG_AUDIO
+                qDebug()<<"IN: "<<waveBlocks[header].dwBytesRecorded<<", OUT: "<<l;
+#endif
+                if(l < 0) {
+                    // error
+                    qWarning("QAudioInput: IOError");
+                    errorState = QAudio::IOError;
+
+                } else if(l == 0) {
+                    // cant write to IODevice
+                    qWarning("QAudioInput: IOError, can't write to QIODevice");
+                    errorState = QAudio::IOError;
+
+                } else {
+                    totalTimeValue += l;
+                    errorState = QAudio::NoError;
+                    if (deviceState != QAudio::ActiveState) {
+                        deviceState = QAudio::ActiveState;
+                        emit stateChanged(deviceState);
+                    }
+		    resuming = false;
+                }
+            } else {
+                l = qMin<qint64>(len, waveBlocks[header].dwBytesRecorded - waveBlockOffset);
+                // push mode
+                memcpy(p, waveBlocks[header].lpData + waveBlockOffset, l);
+
+                len -= l;
+
+#ifdef DEBUG_AUDIO
+                qDebug()<<"IN: "<<waveBlocks[header].dwBytesRecorded<<", OUT: "<<l;
+#endif
+                totalTimeValue += l;
+                errorState = QAudio::NoError;
+                if (deviceState != QAudio::ActiveState) {
+                    deviceState = QAudio::ActiveState;
+                    emit stateChanged(deviceState);
+                }
+		resuming = false;
+            }
+        } else {
+            //no data, not ready yet, next time
+            break;
+        }
+
+        if (l < waveBlocks[header].dwBytesRecorded - waveBlockOffset) {
+            waveBlockOffset += l;
+            done = true;
+        } else {
+            waveBlockOffset = 0;
+
+            waveInUnprepareHeader(hWaveIn,&waveBlocks[header], sizeof(WAVEHDR));
+
+            mutex.lock();
+            waveFreeBlockCount++;
+            mutex.unlock();
+
+            waveBlocks[header].dwBytesRecorded=0;
+            waveBlocks[header].dwFlags = 0L;
+            result = waveInPrepareHeader(hWaveIn,&waveBlocks[header], sizeof(WAVEHDR));
+            if(result != MMSYSERR_NOERROR) {
+                result = waveInPrepareHeader(hWaveIn,&waveBlocks[header], sizeof(WAVEHDR));
+                qWarning("QAudioInput: failed to prepare block %d,err=%d",header,result);
+                errorState = QAudio::IOError;
+
+                mutex.lock();
+                waveFreeBlockCount--;
+                mutex.unlock();
+
+                return 0;
+            }
+            result = waveInAddBuffer(hWaveIn, &waveBlocks[header], sizeof(WAVEHDR));
+            if(result != MMSYSERR_NOERROR) {
+                qWarning("QAudioInput: failed to setup block %d,err=%d",header,result);
+                errorState = QAudio::IOError;
+
+                mutex.lock();
+                waveFreeBlockCount--;
+                mutex.unlock();
+
+                return 0;
+            }
+            header++;
+            if(header >= buffer_size/period_size)
+                header = 0;
+            p+=l;
+
+            mutex.lock();
+            if(!pullMode) {
+                if(len < period_size || waveFreeBlockCount == buffer_size/period_size)
+                    done = true;
+            } else {
+                if(waveFreeBlockCount == buffer_size/period_size)
+                    done = true;
+            }
+            mutex.unlock();
+        }
+
+	written+=l;
+    }
+#ifdef DEBUG_AUDIO
+    qDebug()<<"read in len="<<written;
+#endif
+    return written;
+}
+
+void QAudioInputPrivate::resume()
+{
+    if(deviceState == QAudio::SuspendedState) {
+        deviceState = QAudio::ActiveState;
+        for(int i=0; i<buffer_size/period_size; i++) {
+            result = waveInAddBuffer(hWaveIn, &waveBlocks[i], sizeof(WAVEHDR));
+            if(result != MMSYSERR_NOERROR) {
+                qWarning("QAudioInput: failed to setup block %d,err=%d",i,result);
+                errorState = QAudio::OpenError;
+                deviceState = QAudio::StoppedState;
+                emit stateChanged(deviceState);
+                return;
+            }
+        }
+
+        mutex.lock();
+        waveFreeBlockCount = buffer_size/period_size;
+        mutex.unlock();
+
+        header = 0;
+	resuming = true;
+        waveBlockOffset = 0;
+        waveInStart(hWaveIn);
+        QTimer::singleShot(20,this,SLOT(feedback()));
+        emit stateChanged(deviceState);
+    }
+}
+
+void QAudioInputPrivate::setBufferSize(int value)
+{
+    buffer_size = value;
+}
+
+int QAudioInputPrivate::bufferSize() const
+{
+    return buffer_size;
+}
+
+int QAudioInputPrivate::periodSize() const
+{
+    return period_size;
+}
+
+void QAudioInputPrivate::setNotifyInterval(int ms)
+{
+    intervalTime = qMax(0, ms);
+}
+
+int QAudioInputPrivate::notifyInterval() const
+{
+    return intervalTime;
+}
+
+qint64 QAudioInputPrivate::processedUSecs() const
+{
+    if (deviceState == QAudio::StoppedState)
+        return 0;
+    qint64 result = qint64(1000000) * totalTimeValue /
+        (settings.channels()*(settings.sampleSize()/8)) /
+        settings.frequency();
+
+    return result;
+}
+
+void QAudioInputPrivate::suspend()
+{
+    if(deviceState == QAudio::ActiveState) {
+        waveInReset(hWaveIn);
+        deviceState = QAudio::SuspendedState;
+        emit stateChanged(deviceState);
+    }
+}
+
+void QAudioInputPrivate::feedback()
+{
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :feedback() INPUT "<<this;
+#endif
+    if(!(deviceState==QAudio::StoppedState||deviceState==QAudio::SuspendedState))
+        QMetaObject::invokeMethod(this, "deviceReady", Qt::QueuedConnection);
+}
+
+bool QAudioInputPrivate::deviceReady()
+{
+    bytesAvailable = bytesReady();
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :deviceReady() INPUT";
+#endif
+    if(deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
+        return true;
+
+    if(pullMode) {
+        // reads some audio data and writes it to QIODevice
+        read(0, buffer_size);
+    } else {
+        // emits readyRead() so user will call read() on QIODevice to get some audio data
+	InputPrivate* a = qobject_cast<InputPrivate*>(audioSource);
+	a->trigger();
+    }
+
+    if(intervalTime && (timeStamp.elapsed() + elapsedTimeOffset) > intervalTime) {
+        emit notify();
+        elapsedTimeOffset = timeStamp.elapsed() + elapsedTimeOffset - intervalTime;
+        timeStamp.restart();
+    }
+    return true;
+}
+
+qint64 QAudioInputPrivate::elapsedUSecs() const
+{
+    if (deviceState == QAudio::StoppedState)
+        return 0;
+
+    return timeStampOpened.elapsed()*1000;
+}
+
+void QAudioInputPrivate::reset()
+{
+    stop();
+    if (period_size > 0)
+        waveFreeBlockCount = buffer_size / period_size;
+}
+
+InputPrivate::InputPrivate(QAudioInputPrivate* audio)
+{
+    audioDevice = qobject_cast<QAudioInputPrivate*>(audio);
+}
+
+InputPrivate::~InputPrivate() {}
+
+qint64 InputPrivate::readData( char* data, qint64 len)
+{
+    // push mode, user read() called
+    if(audioDevice->deviceState != QAudio::ActiveState &&
+            audioDevice->deviceState != QAudio::IdleState)
+        return 0;
+    // Read in some audio data
+    return audioDevice->read(data,len);
+}
+
+qint64 InputPrivate::writeData(const char* data, qint64 len)
+{
+    Q_UNUSED(data)
+    Q_UNUSED(len)
+
+    emit readyRead();
+    return 0;
+}
+
+void InputPrivate::trigger()
+{
+    emit readyRead();
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qaudioinput_win32_p.cpp"
+
diff --git a/src/multimediakit/audio/qaudioinput_win32_p.h b/src/multimediakit/audio/qaudioinput_win32_p.h
new file mode 100644
index 000000000..e1972cd66
--- /dev/null
+++ b/src/multimediakit/audio/qaudioinput_win32_p.h
@@ -0,0 +1,171 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIOINPUTWIN_H
+#define QAUDIOINPUTWIN_H
+
+#include <windows.h>
+#include <mmsystem.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 <QtCore/qmutex.h>
+
+#include <qaudio.h>
+#include <qaudiodeviceinfo.h>
+#include <qaudiosystem.h>
+
+
+QT_BEGIN_NAMESPACE
+
+// For compat with 4.6
+#if !defined(QT_WIN_CALLBACK)
+#  if defined(Q_CC_MINGW)
+#    define QT_WIN_CALLBACK CALLBACK __attribute__ ((force_align_arg_pointer))
+#  else
+#    define QT_WIN_CALLBACK CALLBACK
+#  endif
+#endif
+
+class QAudioInputPrivate : public QAbstractAudioInput
+{
+    Q_OBJECT
+public:
+    QAudioInputPrivate(const QByteArray &device);
+    ~QAudioInputPrivate();
+
+    qint64 read(char* data, qint64 len);
+
+    void setFormat(const QAudioFormat& fmt);
+    QAudioFormat format() const;
+    QIODevice* start();
+    void start(QIODevice* device);
+    void stop();
+    void reset();
+    void suspend();
+    void resume();
+    int bytesReady() 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;
+
+    QIODevice* audioSource;
+    QAudioFormat settings;
+    QAudio::Error errorState;
+    QAudio::State deviceState;
+
+private:
+    qint32 buffer_size;
+    qint32 period_size;
+    qint32 header;
+    QByteArray m_device;
+    int bytesAvailable;
+    int intervalTime;
+    QTime timeStamp;
+    qint64 elapsedTimeOffset;
+    QTime timeStampOpened;
+    qint64 totalTimeValue;
+    bool pullMode;
+    bool resuming;
+    WAVEFORMATEX wfx;
+    HWAVEIN hWaveIn;
+    MMRESULT result;
+    WAVEHDR* waveBlocks;
+    volatile bool finished;
+    volatile int waveFreeBlockCount;
+    int waveBlockOffset;
+
+    QMutex mutex;
+    static void QT_WIN_CALLBACK waveInProc( HWAVEIN hWaveIn, UINT uMsg,
+            DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 );
+
+    WAVEHDR* allocateBlocks(int size, int count);
+    void freeBlocks(WAVEHDR* blockArray);
+    bool open();
+    void close();
+
+private slots:
+    void feedback();
+    bool deviceReady();
+
+signals:
+    void processMore();
+};
+
+class InputPrivate : public QIODevice
+{
+    Q_OBJECT
+public:
+    InputPrivate(QAudioInputPrivate* audio);
+    ~InputPrivate();
+
+    qint64 readData( char* data, qint64 len);
+    qint64 writeData(const char* data, qint64 len);
+
+    void trigger();
+private:
+    QAudioInputPrivate *audioDevice;
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimediakit/audio/qaudiooutput.cpp b/src/multimediakit/audio/qaudiooutput.cpp
new file mode 100644
index 000000000..afde7ff14
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput.cpp
@@ -0,0 +1,393 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include "qaudio.h"
+#include "qaudiodeviceinfo.h"
+#include "qaudiosystem.h"
+#include "qaudiooutput.h"
+
+#include "qaudiodevicefactory_p.h"
+
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QAudioOutput
+    \brief The QAudioOutput class provides an interface for sending audio data to an audio output device.
+
+    \inmodule QtMultimediaKit
+    \ingroup  multimedia
+    \since 1.0
+
+    XXX
+
+    You can construct an audio output with the system's
+    \l{QAudioDeviceInfo::defaultOutputDevice()}{default audio output
+    device}. It is also possible to create QAudioOutput with a
+    specific QAudioDeviceInfo. When you create the audio output, you
+    should also send in the QAudioFormat to be used for the playback
+    (see the QAudioFormat class description for details).
+
+    To play a file:
+
+    Starting to play an audio stream is simply a matter of calling
+    start() with a QIODevice. QAudioOutput will then fetch the data it
+    needs from the io device. So playing back an audio file is as
+    simple as:
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Audio output class members
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Audio output setup
+
+    The file will start playing assuming that the audio system and
+    output device support it. If you run out of luck, check what's
+    up with the error() function.
+
+    After the file has finished playing, we need to stop the device:
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Audio output state changed
+
+    At any given time, the QAudioOutput will be in one of four states:
+    active, suspended, stopped, or idle. These states are described
+    by the QAudio::State enum.
+    State changes are reported through the stateChanged() signal. You
+    can use this signal to, for instance, update the GUI of the
+    application; the mundane example here being changing the state of
+    a \c { play/pause } button. You request a state change directly
+    with suspend(), stop(), reset(), resume(), and start().
+
+    While the stream is playing, you can set a notify interval in
+    milliseconds with setNotifyInterval(). This interval specifies the
+    time between two emissions of the notify() signal. This is
+    relative to the position in the stream, i.e., if the QAudioOutput
+    is in the SuspendedState or the IdleState, the notify() signal is
+    not emitted. A typical use-case would be to update a
+    \l{QSlider}{slider} that allows seeking in the stream.
+    If you want the time since playback started regardless of which
+    states the audio output has been in, elapsedUSecs() is the function for you.
+
+    If an error occurs, you can fetch the \l{QAudio::Error}{error
+    type} with the error() function. Please see the QAudio::Error enum
+    for a description of the possible errors that are reported.  When
+    an error is encountered, the state changes to QAudio::StoppedState.
+    You can check for errors by connecting to the stateChanged()
+    signal:
+
+    \snippet doc/src/snippets/multimedia-snippets/audio.cpp Audio output state changed
+
+    \sa QAudioInput, QAudioDeviceInfo
+*/
+
+/*!
+    Construct a new audio output and attach it to \a parent.
+    The default audio output device is used with the output
+    \a format parameters.
+    \since 1.0
+*/
+QAudioOutput::QAudioOutput(const QAudioFormat &format, QObject *parent):
+    QObject(parent)
+{
+    d = QAudioDeviceFactory::createDefaultOutputDevice(format);
+    connect(d, SIGNAL(notify()), SIGNAL(notify()));
+    connect(d, SIGNAL(stateChanged(QAudio::State)), SIGNAL(stateChanged(QAudio::State)));
+}
+
+/*!
+    Construct a new audio output and attach it to \a parent.
+    The device referenced by \a audioDevice is used with the output
+    \a format parameters.
+    \since 1.0
+*/
+QAudioOutput::QAudioOutput(const QAudioDeviceInfo &audioDevice, const QAudioFormat &format, QObject *parent):
+    QObject(parent)
+{
+    d = QAudioDeviceFactory::createOutputDevice(audioDevice, format);
+    connect(d, SIGNAL(notify()), SIGNAL(notify()));
+    connect(d, SIGNAL(stateChanged(QAudio::State)), SIGNAL(stateChanged(QAudio::State)));
+}
+
+/*!
+    Destroys this audio output.
+
+    XXX This will release any system resources used and free any buffers.
+*/
+QAudioOutput::~QAudioOutput()
+{
+    delete d;
+}
+
+/*!
+    Returns the QAudioFormat being used.
+
+    \since 1.0
+*/
+QAudioFormat QAudioOutput::format() const
+{
+    return d->format();
+}
+
+/*!
+    Uses the \a device as the QIODevice to transfer data.
+    Passing a QIODevice allows the data to be transferred without any extra code.
+    All that is required is to open the QIODevice.
+
+    If able to successfully output audio data to the systems audio device the
+    state() is set to QAudio::ActiveState, error() is set to QAudio::NoError
+    and the stateChanged() signal is emitted.
+
+    If a problem occurs during this process the error() is set to QAudio::OpenError,
+    state() is set to QAudio::StoppedState and stateChanged() signal is emitted.
+
+    \since 1.0
+    \sa QIODevice
+*/
+void QAudioOutput::start(QIODevice* device)
+{
+    d->start(device);
+}
+
+/*!
+    Returns a pointer to the QIODevice being used to handle the data
+    transfer. This QIODevice can be used to write() audio data directly.
+
+    If able to access the systems audio device the state() is set to
+    QAudio::IdleState, error() is set to QAudio::NoError
+    and the stateChanged() signal is emitted.
+
+    If a problem occurs during this process the error() is set to QAudio::OpenError,
+    state() is set to QAudio::StoppedState and stateChanged() signal is emitted.
+
+    \since 1.0
+    \sa QIODevice
+*/
+QIODevice* QAudioOutput::start()
+{
+    return d->start();
+}
+
+/*!
+    Stops the audio output, detaching from the system resource.
+
+    XXX
+    Sets error() to QAudio::NoError, state() to QAudio::StoppedState and
+    emit stateChanged() signal.
+    \since 1.0
+*/
+void QAudioOutput::stop()
+{
+    d->stop();
+}
+
+/*!
+    Drops all audio data in the buffers, resets buffers to zero.
+
+    XXX what about state
+    \since 1.0
+*/
+void QAudioOutput::reset()
+{
+    d->reset();
+}
+
+/*!
+    Stops processing audio data, preserving buffered audio data.
+
+    XXX
+
+    Sets error() to QAudio::NoError, state() to QAudio::SuspendedState and
+    emits stateChanged() signal.
+    \since 1.0
+*/
+void QAudioOutput::suspend()
+{
+    d->suspend();
+}
+
+/*!
+    Resumes processing audio data after a suspend().
+
+XXX
+
+    Sets error() to QAudio::NoError.
+    Sets state() to QAudio::ActiveState if you previously called start(QIODevice*).
+    Sets state() to QAudio::IdleState if you previously called start().
+    emits stateChanged() signal.
+    \since 1.0
+*/
+void QAudioOutput::resume()
+{
+     d->resume();
+}
+
+/*!
+    Returns the number of free bytes available in the audio buffer.
+
+    \note The returned value is only valid while in QAudio::ActiveState or QAudio::IdleState
+    state, otherwise returns zero.
+    \since 1.0
+*/
+int QAudioOutput::bytesFree() const
+{
+    return d->bytesFree();
+}
+
+/*!
+    Returns the period size in bytes. This is the amount of data required each period
+    to prevent buffer underrun, and to ensure uninterrupted playback.
+
+    \note It is recommended to provide at least enough data for a full period with each
+    write operation.
+    \since 1.0
+*/
+int QAudioOutput::periodSize() const
+{
+    return d->periodSize();
+}
+
+/*!
+    Sets the audio buffer size to \a value in bytes.
+
+    \note This function can be called anytime before start().  Calls to this
+    are ignored after start(). It should not be assumed that the buffer size
+    set is the actual buffer size used - call bufferSize() anytime after start()
+    to return the actual buffer size being used.
+    \since 1.0
+*/
+void QAudioOutput::setBufferSize(int value)
+{
+    d->setBufferSize(value);
+}
+
+/*!
+    Returns the audio buffer size in bytes.
+
+    If called before start(), returns platform default value.
+    If called before start() but setBufferSize() was called prior, returns value set by setBufferSize().
+    If called after start(), returns the actual buffer size being used. This may not be what was set previously
+    by setBufferSize().
+
+    \since 1.0
+*/
+int QAudioOutput::bufferSize() const
+{
+    return d->bufferSize();
+}
+
+/*!
+    Sets the interval for notify() signal to be emitted.
+    This is based on the \a ms of audio data processed,
+    not on wall clock time.
+    The minimum resolution of the timer is platform specific and values
+    should be checked with notifyInterval() to confirm the actual value
+    being used.
+    \since 1.0
+*/
+void QAudioOutput::setNotifyInterval(int ms)
+{
+    d->setNotifyInterval(ms);
+}
+
+/*!
+    Returns the notify interval in milliseconds.
+    \since 1.0
+*/
+int QAudioOutput::notifyInterval() const
+{
+    return d->notifyInterval();
+}
+
+/*!
+    Returns the amount of audio data processed since start()
+    was called (in microseconds).
+    \since 1.0
+*/
+qint64 QAudioOutput::processedUSecs() const
+{
+    return d->processedUSecs();
+}
+
+/*!
+    Returns the microseconds since start() was called, including time in Idle and
+    Suspend states.
+    \since 1.0
+*/
+qint64 QAudioOutput::elapsedUSecs() const
+{
+    return d->elapsedUSecs();
+}
+
+/*!
+    Returns the error state.
+    \since 1.0
+*/
+QAudio::Error QAudioOutput::error() const
+{
+    return d->error();
+}
+
+/*!
+    Returns the state of audio processing.
+    \since 1.0
+*/
+QAudio::State QAudioOutput::state() const
+{
+    return d->state();
+}
+
+/*!
+    \fn QAudioOutput::stateChanged(QAudio::State state)
+    This signal is emitted when the device \a state has changed.
+    This is the current state of the audio output.
+    \since 1.0
+*/
+
+/*!
+    \fn QAudioOutput::notify()
+    This signal is emitted when a certain interval of milliseconds
+    of audio data has been processed.  The interval is set by
+    setNotifyInterval().
+    \since 1.0
+*/
+
+QT_END_NAMESPACE
+
+#include "moc_qaudiooutput.cpp"
diff --git a/src/multimediakit/audio/qaudiooutput.h b/src/multimediakit/audio/qaudiooutput.h
new file mode 100644
index 000000000..68b0eb2d6
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput.h
@@ -0,0 +1,111 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QAUDIOOUTPUT_H
+#define QAUDIOOUTPUT_H
+
+#include <QtCore/qiodevice.h>
+
+#include <qmobilityglobal.h>
+#include <qtmedianamespace.h>
+
+#include <qaudio.h>
+#include <qaudioformat.h>
+#include <qaudiodeviceinfo.h>
+
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+
+class QAbstractAudioOutput;
+
+class Q_MULTIMEDIA_EXPORT QAudioOutput : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit QAudioOutput(const QAudioFormat &format = QAudioFormat(), QObject *parent = 0);
+    explicit QAudioOutput(const QAudioDeviceInfo &audioDeviceInfo, const QAudioFormat &format = QAudioFormat(), QObject *parent = 0);
+    ~QAudioOutput();
+
+    QAudioFormat format() const;
+
+    void start(QIODevice *device);
+    QIODevice* start();
+
+    void stop();
+    void reset();
+    void suspend();
+    void resume();
+
+    void setBufferSize(int bytes);
+    int bufferSize() const;
+
+    int bytesFree() const;
+    int periodSize() const;
+
+    void setNotifyInterval(int milliSeconds);
+    int notifyInterval() const;
+
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
+
+    QAudio::Error error() const;
+    QAudio::State state() const;
+
+Q_SIGNALS:
+    void stateChanged(QAudio::State);
+    void notify();
+
+private:
+    Q_DISABLE_COPY(QAudioOutput)
+
+    QAbstractAudioOutput* d;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QAUDIOOUTPUT_H
diff --git a/src/multimediakit/audio/qaudiooutput_alsa_p.cpp b/src/multimediakit/audio/qaudiooutput_alsa_p.cpp
new file mode 100644
index 000000000..3a0c7e344
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput_alsa_p.cpp
@@ -0,0 +1,834 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// INTERNAL USE ONLY: Do NOT use for any other purpose.
+//
+
+#include <QtCore/qcoreapplication.h>
+#include "qaudiooutput_alsa_p.h"
+#include "qaudiodeviceinfo_alsa_p.h"
+
+QT_BEGIN_NAMESPACE
+
+//#define DEBUG_AUDIO 1
+
+QAudioOutputPrivate::QAudioOutputPrivate(const QByteArray &device)
+{
+    bytesAvailable = 0;
+    handle = 0;
+    ahandler = 0;
+    access = SND_PCM_ACCESS_RW_INTERLEAVED;
+    pcmformat = SND_PCM_FORMAT_S16;
+    buffer_frames = 0;
+    period_frames = 0;
+    buffer_size = 0;
+    period_size = 0;
+    buffer_time = 100000;
+    period_time = 20000;
+    totalTimeValue = 0;
+    intervalTime = 1000;
+    audioBuffer = 0;
+    errorState = QAudio::NoError;
+    deviceState = QAudio::StoppedState;
+    audioSource = 0;
+    pullMode = true;
+    resuming = false;
+    opened = false;
+
+    m_device = device;
+
+    timer = new QTimer(this);
+    connect(timer,SIGNAL(timeout()),SLOT(userFeed()));
+}
+
+QAudioOutputPrivate::~QAudioOutputPrivate()
+{
+    close();
+    disconnect(timer, SIGNAL(timeout()));
+    QCoreApplication::processEvents();
+    delete timer;
+}
+
+QAudio::Error QAudioOutputPrivate::error() const
+{
+    return errorState;
+}
+
+QAudio::State QAudioOutputPrivate::state() const
+{
+    return deviceState;
+}
+
+void QAudioOutputPrivate::async_callback(snd_async_handler_t *ahandler)
+{
+    QAudioOutputPrivate* audioOut;
+
+    audioOut = static_cast<QAudioOutputPrivate*>
+        (snd_async_handler_get_callback_private(ahandler));
+
+    if((audioOut->deviceState==QAudio::ActiveState)||(audioOut->resuming))
+        audioOut->feedback();
+}
+
+int QAudioOutputPrivate::xrun_recovery(int err)
+{
+    int  count = 0;
+    bool reset = false;
+
+    if(err == -EPIPE) {
+        errorState = QAudio::UnderrunError;
+        emit errorChanged(errorState);
+        err = snd_pcm_prepare(handle);
+        if(err < 0)
+            reset = true;
+
+    } else if((err == -ESTRPIPE)||(err == -EIO)) {
+        errorState = QAudio::IOError;
+        emit errorChanged(errorState);
+        while((err = snd_pcm_resume(handle)) == -EAGAIN){
+            usleep(100);
+            count++;
+            if(count > 5) {
+                reset = true;
+                break;
+            }
+        }
+        if(err < 0) {
+            err = snd_pcm_prepare(handle);
+            if(err < 0)
+                reset = true;
+        }
+    }
+    if(reset) {
+        close();
+        open();
+        snd_pcm_prepare(handle);
+        return 0;
+    }
+    return err;
+}
+
+int QAudioOutputPrivate::setFormat()
+{
+    snd_pcm_format_t pcmformat = SND_PCM_FORMAT_UNKNOWN;
+
+    if(settings.sampleSize() == 8) {
+        pcmformat = SND_PCM_FORMAT_U8;
+
+    } else if(settings.sampleSize() == 16) {
+        if(settings.sampleType() == QAudioFormat::SignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                pcmformat = SND_PCM_FORMAT_S16_LE;
+            else
+                pcmformat = SND_PCM_FORMAT_S16_BE;
+        } else if(settings.sampleType() == QAudioFormat::UnSignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                pcmformat = SND_PCM_FORMAT_U16_LE;
+            else
+                pcmformat = SND_PCM_FORMAT_U16_BE;
+        }
+    } else if(settings.sampleSize() == 24) {
+        if(settings.sampleType() == QAudioFormat::SignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                pcmformat = SND_PCM_FORMAT_S24_LE;
+            else
+                pcmformat = SND_PCM_FORMAT_S24_BE;
+        } else if(settings.sampleType() == QAudioFormat::UnSignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                pcmformat = SND_PCM_FORMAT_U24_LE;
+            else
+                pcmformat = SND_PCM_FORMAT_U24_BE;
+        }
+    } else if(settings.sampleSize() == 32) {
+        if(settings.sampleType() == QAudioFormat::SignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                pcmformat = SND_PCM_FORMAT_S32_LE;
+            else
+                pcmformat = SND_PCM_FORMAT_S32_BE;
+        } else if(settings.sampleType() == QAudioFormat::UnSignedInt) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                pcmformat = SND_PCM_FORMAT_U32_LE;
+            else
+                pcmformat = SND_PCM_FORMAT_U32_BE;
+        } else if(settings.sampleType() == QAudioFormat::Float) {
+            if(settings.byteOrder() == QAudioFormat::LittleEndian)
+                pcmformat = SND_PCM_FORMAT_FLOAT_LE;
+            else
+                pcmformat = SND_PCM_FORMAT_FLOAT_BE;
+        }
+    } else if(settings.sampleSize() == 64) {
+        if(settings.byteOrder() == QAudioFormat::LittleEndian)
+            pcmformat = SND_PCM_FORMAT_FLOAT64_LE;
+        else
+            pcmformat = SND_PCM_FORMAT_FLOAT64_BE;
+    }
+
+    return pcmformat != SND_PCM_FORMAT_UNKNOWN
+            ? snd_pcm_hw_params_set_format( handle, hwparams, pcmformat)
+            : -1;
+}
+
+void QAudioOutputPrivate::start(QIODevice* device)
+{
+    if(deviceState != QAudio::StoppedState)
+        deviceState = QAudio::StoppedState;
+
+    errorState = QAudio::NoError;
+
+    // Handle change of mode
+    if(audioSource && !pullMode) {
+        delete audioSource;
+        audioSource = 0;
+    }
+
+    close();
+
+    pullMode = true;
+    audioSource = device;
+
+    deviceState = QAudio::ActiveState;
+
+    open();
+
+    emit stateChanged(deviceState);
+}
+
+QIODevice* QAudioOutputPrivate::start()
+{
+    if(deviceState != QAudio::StoppedState)
+        deviceState = QAudio::StoppedState;
+
+    errorState = QAudio::NoError;
+
+    // Handle change of mode
+    if(audioSource && !pullMode) {
+        delete audioSource;
+        audioSource = 0;
+    }
+
+    close();
+
+    audioSource = new OutputPrivate(this);
+    audioSource->open(QIODevice::WriteOnly|QIODevice::Unbuffered);
+    pullMode = false;
+
+    deviceState = QAudio::IdleState;
+
+    open();
+
+    emit stateChanged(deviceState);
+
+    return audioSource;
+}
+
+void QAudioOutputPrivate::stop()
+{
+    if(deviceState == QAudio::StoppedState)
+        return;
+    errorState = QAudio::NoError;
+    deviceState = QAudio::StoppedState;
+    close();
+    emit stateChanged(deviceState);
+}
+
+bool QAudioOutputPrivate::open()
+{
+    if(opened)
+        return true;
+
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
+#endif
+    timeStamp.restart();
+    elapsedTimeOffset = 0;
+
+    int dir;
+    int err = 0;
+    int count=0;
+    unsigned int freakuency=settings.frequency();
+
+    if (!settings.isValid()) {
+        qWarning("QAudioOutput: open error, invalid format.");
+    } else if (settings.sampleRate() <= 0) {
+        qWarning("QAudioOutput: open error, invalid sample rate (%d).",
+                 settings.sampleRate());
+    } else {
+        err = -1;
+    }
+
+    if (err == 0) {
+        errorState = QAudio::OpenError;
+        deviceState = QAudio::StoppedState;
+        emit errorChanged(errorState);
+        return false;
+    }
+
+    QString dev = QString(QLatin1String(m_device.constData()));
+    QList<QByteArray> devices = QAudioDeviceInfoInternal::availableDevices(QAudio::AudioOutput);
+    if(dev.compare(QLatin1String("default")) == 0) {
+#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
+        if (devices.size() > 0)
+            dev = QLatin1String(devices.first());
+        else
+            return false;
+#else
+        dev = QLatin1String("hw:0,0");
+#endif
+    } else {
+#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
+        dev = QLatin1String(m_device);
+#else
+        int idx = 0;
+        char *name;
+
+        QString shortName = QLatin1String(m_device.mid(m_device.indexOf('=',0)+1).constData());
+
+	while(snd_card_get_name(idx,&name) == 0) {
+            if(qstrncmp(shortName.toLocal8Bit().constData(),name,shortName.length()) == 0)
+                break;
+            idx++;
+	}
+        dev = QString(QLatin1String("hw:%1,0")).arg(idx);
+#endif
+    }
+
+    // Step 1: try and open the device
+    while((count < 5) && (err < 0)) {
+        err=snd_pcm_open(&handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_PLAYBACK,0);
+        if(err < 0)
+            count++;
+    }
+    if (( err < 0)||(handle == 0)) {
+        errorState = QAudio::OpenError;
+        emit errorChanged(errorState);
+        deviceState = QAudio::StoppedState;
+        return false;
+    }
+    snd_pcm_nonblock( handle, 0 );
+
+    // Step 2: Set the desired HW parameters.
+    snd_pcm_hw_params_alloca( &hwparams );
+
+    bool fatal = false;
+    QString errMessage;
+    unsigned int chunks = 8;
+
+    err = snd_pcm_hw_params_any( handle, hwparams );
+    if ( err < 0 ) {
+        fatal = true;
+        errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_any: err = %1").arg(err);
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_rate_resample( handle, hwparams, 1 );
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_rate_resample: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_access( handle, hwparams, access );
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_access: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = setFormat();
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_format: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_channels( handle, hwparams, (unsigned int)settings.channels() );
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_channels: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_rate_near( handle, hwparams, &freakuency, 0 );
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_rate_near: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        unsigned int maxBufferTime = 0;
+        unsigned int minBufferTime = 0;
+        unsigned int maxPeriodTime = 0;
+        unsigned int minPeriodTime = 0;
+
+        err = snd_pcm_hw_params_get_buffer_time_max(hwparams, &maxBufferTime, &dir);
+        if ( err >= 0)
+            err = snd_pcm_hw_params_get_buffer_time_min(hwparams, &minBufferTime, &dir);
+        if ( err >= 0)
+            err = snd_pcm_hw_params_get_period_time_max(hwparams, &maxPeriodTime, &dir);
+        if ( err >= 0)
+            err = snd_pcm_hw_params_get_period_time_min(hwparams, &minPeriodTime, &dir);
+
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: buffer/period min and max: err = %1").arg(err);
+        } else {
+            if (maxBufferTime < buffer_time || buffer_time < minBufferTime || maxPeriodTime < period_time || minPeriodTime > period_time) {
+#ifdef DEBUG_AUDIO
+                qDebug()<<"defaults out of range";
+                qDebug()<<"pmin="<<minPeriodTime<<", pmax="<<maxPeriodTime<<", bmin="<<minBufferTime<<", bmax="<<maxBufferTime;
+#endif
+                period_time = minPeriodTime;
+                if (period_time*4 <= maxBufferTime) {
+                    // Use 4 periods if possible
+                    buffer_time = period_time*4;
+                    chunks = 4;
+                } else if (period_time*2 <= maxBufferTime) {
+                    // Use 2 periods if possible
+                    buffer_time = period_time*2;
+                    chunks = 2;
+                } else {
+                    qWarning()<<"QAudioOutput: alsa only supports single period!";
+                    fatal = true;
+                }
+#ifdef DEBUG_AUDIO
+                qDebug()<<"used: buffer_time="<<buffer_time<<", period_time="<<period_time;
+#endif
+            }
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_buffer_time_near(handle, hwparams, &buffer_time, &dir);
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_buffer_time_near: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_period_time_near(handle, hwparams, &period_time, &dir);
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_period_time_near: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params_set_periods_near(handle, hwparams, &chunks, &dir);
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_periods_near: err = %1").arg(err);
+        }
+    }
+    if ( !fatal ) {
+        err = snd_pcm_hw_params(handle, hwparams);
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params: err = %1").arg(err);
+        }
+    }
+    if( err < 0) {
+        qWarning()<<errMessage;
+        errorState = QAudio::OpenError;
+        emit errorChanged(errorState);
+        deviceState = QAudio::StoppedState;
+        return false;
+    }
+    snd_pcm_hw_params_get_buffer_size(hwparams,&buffer_frames);
+    buffer_size = snd_pcm_frames_to_bytes(handle,buffer_frames);
+    snd_pcm_hw_params_get_period_size(hwparams,&period_frames, &dir);
+    period_size = snd_pcm_frames_to_bytes(handle,period_frames);
+    snd_pcm_hw_params_get_buffer_time(hwparams,&buffer_time, &dir);
+    snd_pcm_hw_params_get_period_time(hwparams,&period_time, &dir);
+
+    // Step 3: Set the desired SW parameters.
+    snd_pcm_sw_params_t *swparams;
+    snd_pcm_sw_params_alloca(&swparams);
+    snd_pcm_sw_params_current(handle, swparams);
+    snd_pcm_sw_params_set_start_threshold(handle,swparams,period_frames);
+    snd_pcm_sw_params_set_stop_threshold(handle,swparams,buffer_frames);
+    snd_pcm_sw_params_set_avail_min(handle, swparams,period_frames);
+    snd_pcm_sw_params(handle, swparams);
+
+    // Step 4: Prepare audio
+    if(audioBuffer == 0)
+        audioBuffer = new char[snd_pcm_frames_to_bytes(handle,buffer_frames)];
+    snd_pcm_prepare( handle );
+    snd_pcm_start(handle);
+
+    // Step 5: Setup callback and timer fallback
+    snd_async_add_pcm_handler(&ahandler, handle, async_callback, this);
+    bytesAvailable = bytesFree();
+
+    // Step 6: Start audio processing
+    timer->start(period_time/1000);
+
+    clockStamp.restart();
+    timeStamp.restart();
+    elapsedTimeOffset = 0;
+    errorState  = QAudio::NoError;
+    totalTimeValue = 0;
+    opened = true;
+
+    return true;
+}
+
+void QAudioOutputPrivate::close()
+{
+    timer->stop();
+
+    if ( handle ) {
+        snd_pcm_drain( handle );
+        snd_pcm_close( handle );
+        handle = 0;
+        delete [] audioBuffer;
+        audioBuffer=0;
+    }
+    if(!pullMode && audioSource) {
+        delete audioSource;
+        audioSource = 0;
+    }
+    opened = false;
+}
+
+int QAudioOutputPrivate::bytesFree() const
+{
+    if(resuming)
+        return period_size;
+
+    if(deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
+        return 0;
+
+    int frames = snd_pcm_avail_update(handle);
+    if (frames == -EPIPE) {
+        // Try and handle buffer underrun
+        int err = snd_pcm_recover(handle, frames, 0);
+        if (err < 0)
+            return 0;
+        else
+            frames = snd_pcm_avail_update(handle);
+    } else if (frames < 0) {
+        return 0;
+    }
+
+    if ((int)frames > (int)buffer_frames)
+        frames = buffer_frames;
+
+    return snd_pcm_frames_to_bytes(handle, frames);
+}
+
+qint64 QAudioOutputPrivate::write( const char *data, qint64 len )
+{
+    // Write out some audio data
+    if ( !handle )
+        return 0;
+#ifdef DEBUG_AUDIO
+    qDebug()<<"frames to write out = "<<
+        snd_pcm_bytes_to_frames( handle, (int)len )<<" ("<<len<<") bytes";
+#endif
+    int frames, err;
+    int space = bytesFree();
+    if(len < space) {
+        // Just write it
+        frames = snd_pcm_bytes_to_frames( handle, (int)len );
+        err = snd_pcm_writei( handle, data, frames );
+    } else {
+        // Only write space worth
+        frames = snd_pcm_bytes_to_frames( handle, (int)space );
+        err = snd_pcm_writei( handle, data, frames );
+    }
+    if(err > 0) {
+        totalTimeValue += err;
+        resuming = false;
+        errorState = QAudio::NoError;
+        if (deviceState != QAudio::ActiveState) {
+            deviceState = QAudio::ActiveState;
+            emit stateChanged(deviceState);
+        }
+        return snd_pcm_frames_to_bytes( handle, err );
+    } else
+        err = xrun_recovery(err);
+
+    if(err < 0) {
+        close();
+        errorState = QAudio::FatalError;
+        emit errorChanged(errorState);
+        deviceState = QAudio::StoppedState;
+        emit stateChanged(deviceState);
+    }
+    return 0;
+}
+
+int QAudioOutputPrivate::periodSize() const
+{
+    return period_size;
+}
+
+void QAudioOutputPrivate::setBufferSize(int value)
+{
+    if(deviceState == QAudio::StoppedState)
+        buffer_size = value;
+}
+
+int QAudioOutputPrivate::bufferSize() const
+{
+    return buffer_size;
+}
+
+void QAudioOutputPrivate::setNotifyInterval(int ms)
+{
+    intervalTime = qMax(0, ms);
+}
+
+int QAudioOutputPrivate::notifyInterval() const
+{
+    return intervalTime;
+}
+
+qint64 QAudioOutputPrivate::processedUSecs() const
+{
+    return qint64(1000000) * totalTimeValue / settings.frequency();
+}
+
+void QAudioOutputPrivate::resume()
+{
+    if(deviceState == QAudio::SuspendedState) {
+        int err = 0;
+
+        if(handle) {
+            err = snd_pcm_prepare( handle );
+            if(err < 0)
+                xrun_recovery(err);
+
+            err = snd_pcm_start(handle);
+            if(err < 0)
+                xrun_recovery(err);
+
+            bytesAvailable = (int)snd_pcm_frames_to_bytes(handle, buffer_frames);
+        }
+        resuming = true;
+
+        deviceState = QAudio::ActiveState;
+
+        errorState = QAudio::NoError;
+        timer->start(period_time/1000);
+        emit stateChanged(deviceState);
+    }
+}
+
+void QAudioOutputPrivate::setFormat(const QAudioFormat& fmt)
+{
+    if (deviceState == QAudio::StoppedState)
+        settings = fmt;
+}
+
+QAudioFormat QAudioOutputPrivate::format() const
+{
+    return settings;
+}
+
+void QAudioOutputPrivate::suspend()
+{
+    if(deviceState == QAudio::ActiveState || deviceState == QAudio::IdleState || resuming) {
+        timer->stop();
+        deviceState = QAudio::SuspendedState;
+        errorState = QAudio::NoError;
+        emit stateChanged(deviceState);
+    }
+}
+
+void QAudioOutputPrivate::userFeed()
+{
+    if(deviceState == QAudio::StoppedState || deviceState == QAudio::SuspendedState)
+        return;
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :userFeed() OUT";
+#endif
+    if(deviceState ==  QAudio::IdleState)
+        bytesAvailable = bytesFree();
+
+    deviceReady();
+}
+
+void QAudioOutputPrivate::feedback()
+{
+    updateAvailable();
+}
+
+
+void QAudioOutputPrivate::updateAvailable()
+{
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :updateAvailable()";
+#endif
+    bytesAvailable = bytesFree();
+}
+
+bool QAudioOutputPrivate::deviceReady()
+{
+    if(pullMode) {
+        int l = 0;
+        int chunks = bytesAvailable/period_size;
+        if(chunks==0) {
+            bytesAvailable = bytesFree();
+            return false;
+        }
+#ifdef DEBUG_AUDIO
+        qDebug()<<"deviceReady() avail="<<bytesAvailable<<" bytes, period size="<<period_size<<" bytes";
+        qDebug()<<"deviceReady() no. of chunks that can fit ="<<chunks<<", chunks in bytes ="<<period_size*chunks;
+#endif
+        int input = period_frames*chunks;
+        if(input > (int)buffer_frames)
+            input = buffer_frames;
+        l = audioSource->read(audioBuffer,snd_pcm_frames_to_bytes(handle, input));
+        if(l > 0) {
+            // Got some data to output
+            if(deviceState != QAudio::ActiveState)
+                return true;
+            qint64 bytesWritten = write(audioBuffer,l);
+            if (bytesWritten != l)
+                audioSource->seek(audioSource->pos()-(l-bytesWritten));
+            bytesAvailable = bytesFree();
+
+        } else if(l == 0) {
+            // Did not get any data to output
+            bytesAvailable = bytesFree();
+            if(bytesAvailable > snd_pcm_frames_to_bytes(handle, buffer_frames-period_frames)) {
+                // Underrun
+                if (deviceState != QAudio::IdleState) {
+                    errorState = QAudio::UnderrunError;
+                    emit errorChanged(errorState);
+                    deviceState = QAudio::IdleState;
+                    emit stateChanged(deviceState);
+                }
+            }
+
+        } else if(l < 0) {
+            close();
+            deviceState = QAudio::StoppedState;
+            errorState = QAudio::IOError;
+            emit errorChanged(errorState);
+            emit stateChanged(deviceState);
+        }
+    } else {
+        bytesAvailable = bytesFree();
+        if(bytesAvailable > snd_pcm_frames_to_bytes(handle, buffer_frames-period_frames)) {
+            // Underrun
+            if (deviceState != QAudio::IdleState) {
+                errorState = QAudio::UnderrunError;
+                emit errorChanged(errorState);
+                deviceState = QAudio::IdleState;
+                emit stateChanged(deviceState);
+            }
+        }
+    }
+
+    if(deviceState != QAudio::ActiveState)
+        return true;
+
+    if(intervalTime && (timeStamp.elapsed() + elapsedTimeOffset) > intervalTime) {
+        emit notify();
+        elapsedTimeOffset = timeStamp.elapsed() + elapsedTimeOffset - intervalTime;
+        timeStamp.restart();
+    }
+    return true;
+}
+
+qint64 QAudioOutputPrivate::elapsedUSecs() const
+{
+    if (deviceState == QAudio::StoppedState)
+        return 0;
+
+    return clockStamp.elapsed()*1000;
+}
+
+void QAudioOutputPrivate::reset()
+{
+    if(handle)
+        snd_pcm_reset(handle);
+
+    stop();
+}
+
+OutputPrivate::OutputPrivate(QAudioOutputPrivate* audio)
+{
+    audioDevice = qobject_cast<QAudioOutputPrivate*>(audio);
+}
+
+OutputPrivate::~OutputPrivate() {}
+
+qint64 OutputPrivate::readData( char* data, qint64 len)
+{
+    Q_UNUSED(data)
+    Q_UNUSED(len)
+
+    return 0;
+}
+
+qint64 OutputPrivate::writeData(const char* data, qint64 len)
+{
+    int retry = 0;
+    qint64 written = 0;
+    if((audioDevice->deviceState == QAudio::ActiveState)
+            ||(audioDevice->deviceState == QAudio::IdleState)) {
+        while(written < len) {
+            int chunk = audioDevice->write(data+written,(len-written));
+            if(chunk <= 0)
+                retry++;
+            written+=chunk;
+            if(retry > 10)
+                return written;
+        }
+    }
+    return written;
+
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qaudiooutput_alsa_p.cpp"
diff --git a/src/multimediakit/audio/qaudiooutput_alsa_p.h b/src/multimediakit/audio/qaudiooutput_alsa_p.h
new file mode 100644
index 000000000..51f3fee5e
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput_alsa_p.h
@@ -0,0 +1,167 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 "qaudio.h"
+#include "qaudiodeviceinfo.h"
+#include "qaudiosystem.h"
+
+QT_BEGIN_NAMESPACE
+
+class OutputPrivate;
+
+class QAudioOutputPrivate : public QAbstractAudioOutput
+{
+    friend class OutputPrivate;
+    Q_OBJECT
+public:
+    QAudioOutputPrivate(const QByteArray &device);
+    ~QAudioOutputPrivate();
+
+    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;
+
+    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;
+};
+
+class OutputPrivate : public QIODevice
+{
+    friend class QAudioOutputPrivate;
+    Q_OBJECT
+public:
+    OutputPrivate(QAudioOutputPrivate* audio);
+    ~OutputPrivate();
+
+    qint64 readData( char* data, qint64 len);
+    qint64 writeData(const char* data, qint64 len);
+
+private:
+    QAudioOutputPrivate *audioDevice;
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimediakit/audio/qaudiooutput_mac_p.cpp b/src/multimediakit/audio/qaudiooutput_mac_p.cpp
new file mode 100644
index 000000000..fcaa3cbd2
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput_mac_p.cpp
@@ -0,0 +1,729 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// INTERNAL USE ONLY: Do NOT use for any other purpose.
+//
+
+#include <CoreServices/CoreServices.h>
+#include <CoreAudio/CoreAudio.h>
+#include <AudioUnit/AudioUnit.h>
+#include <AudioToolbox/AudioToolbox.h>
+
+#include <QtCore/qendian.h>
+#include <QtCore/qbuffer.h>
+#include <QtCore/qtimer.h>
+#include <QtCore/qdebug.h>
+
+#include <qaudiooutput.h>
+
+#include "qaudio_mac_p.h"
+#include "qaudiooutput_mac_p.h"
+#include "qaudiodeviceinfo_mac_p.h"
+
+
+QT_BEGIN_NAMESPACE
+
+
+namespace QtMultimediaKitInternal
+{
+
+static const int default_buffer_size = 8 * 1024;
+
+
+class QAudioOutputBuffer : public QObject
+{
+    Q_OBJECT
+
+public:
+    QAudioOutputBuffer(int bufferSize, int maxPeriodSize, QAudioFormat const& audioFormat):
+        m_deviceError(false),
+        m_maxPeriodSize(maxPeriodSize),
+        m_device(0)
+    {
+        m_buffer = new QAudioRingBuffer(bufferSize + (bufferSize % maxPeriodSize == 0 ? 0 : maxPeriodSize - (bufferSize % maxPeriodSize)));
+        m_bytesPerFrame = (audioFormat.sampleSize() / 8) * audioFormat.channels();
+        m_periodTime = m_maxPeriodSize / m_bytesPerFrame * 1000 / audioFormat.frequency();
+
+        m_fillTimer = new QTimer(this);
+        connect(m_fillTimer, SIGNAL(timeout()), SLOT(fillBuffer()));
+    }
+
+    ~QAudioOutputBuffer()
+    {
+        delete m_buffer;
+    }
+
+    qint64 readFrames(char* data, qint64 maxFrames)
+    {
+        bool    wecan = true;
+        qint64  framesRead = 0;
+
+        while (wecan && framesRead < maxFrames) {
+            QAudioRingBuffer::Region region = m_buffer->acquireReadRegion((maxFrames - framesRead) * m_bytesPerFrame);
+
+            if (region.second > 0) {
+                region.second -= region.second % m_bytesPerFrame;
+                memcpy(data + (framesRead * m_bytesPerFrame), region.first, region.second);
+                framesRead += region.second / m_bytesPerFrame;
+            }
+            else
+                wecan = false;
+
+            m_buffer->releaseReadRegion(region);
+        }
+
+        if (framesRead == 0 && m_deviceError)
+            framesRead = -1;
+
+        return framesRead;
+    }
+
+    qint64 writeBytes(const char* data, qint64 maxSize)
+    {
+        bool    wecan = true;
+        qint64  bytesWritten = 0;
+
+        maxSize -= maxSize % m_bytesPerFrame;
+        while (wecan && bytesWritten < maxSize) {
+            QAudioRingBuffer::Region region = m_buffer->acquireWriteRegion(maxSize - bytesWritten);
+
+            if (region.second > 0) {
+                memcpy(region.first, data + bytesWritten, region.second);
+                bytesWritten += region.second;
+            }
+            else
+                wecan = false;
+
+            m_buffer->releaseWriteRegion(region);
+        }
+
+        if (bytesWritten > 0)
+            emit readyRead();
+
+        return bytesWritten;
+    }
+
+    int available() const
+    {
+        return m_buffer->free();
+    }
+
+    void reset()
+    {
+        m_buffer->reset();
+        m_device = 0;
+        m_deviceError = false;
+    }
+
+    void setPrefetchDevice(QIODevice* device)
+    {
+        if (m_device != device) {
+            m_device = device;
+            if (m_device != 0)
+                fillBuffer();
+        }
+    }
+
+    void startFillTimer()
+    {
+        if (m_device != 0)
+            m_fillTimer->start(m_buffer->size() / 2 / m_maxPeriodSize * m_periodTime);
+    }
+
+    void stopFillTimer()
+    {
+        m_fillTimer->stop();
+    }
+
+signals:
+    void readyRead();
+
+private slots:
+    void fillBuffer()
+    {
+        const int free = m_buffer->free();
+        const int writeSize = free - (free % m_maxPeriodSize);
+
+        if (writeSize > 0) {
+            bool    wecan = true;
+            int     filled = 0;
+
+            while (!m_deviceError && wecan && filled < writeSize) {
+                QAudioRingBuffer::Region region = m_buffer->acquireWriteRegion(writeSize - filled);
+
+                if (region.second > 0) {
+                    region.second = m_device->read(region.first, region.second);
+                    if (region.second > 0)
+                        filled += region.second;
+                    else if (region.second == 0)
+                        wecan = false;
+                    else if (region.second < 0) {
+                        m_fillTimer->stop();
+                        region.second = 0;
+                        m_deviceError = true;
+                    }
+                }
+                else
+                    wecan = false;
+
+                m_buffer->releaseWriteRegion(region);
+            }
+
+            if (filled > 0)
+                emit readyRead();
+        }
+    }
+
+private:
+    bool        m_deviceError;
+    int         m_maxPeriodSize;
+    int         m_bytesPerFrame;
+    int         m_periodTime;
+    QIODevice*  m_device;
+    QTimer*     m_fillTimer;
+    QAudioRingBuffer*  m_buffer;
+};
+
+
+}
+
+class MacOutputDevice : public QIODevice
+{
+    Q_OBJECT
+
+public:
+    MacOutputDevice(QtMultimediaKitInternal::QAudioOutputBuffer* audioBuffer, QObject* parent):
+        QIODevice(parent),
+        m_audioBuffer(audioBuffer)
+    {
+        open(QIODevice::WriteOnly | QIODevice::Unbuffered);
+    }
+
+    qint64 readData(char* data, qint64 len)
+    {
+        Q_UNUSED(data);
+        Q_UNUSED(len);
+
+        return 0;
+    }
+
+    qint64 writeData(const char* data, qint64 len)
+    {
+        return m_audioBuffer->writeBytes(data, len);
+    }
+
+    bool isSequential() const
+    {
+        return true;
+    }
+
+private:
+    QtMultimediaKitInternal::QAudioOutputBuffer*    m_audioBuffer;
+};
+
+
+QAudioOutputPrivate::QAudioOutputPrivate(const QByteArray& device)
+{
+    QDataStream ds(device);
+    quint32 did, mode;
+
+    ds >> did >> mode;
+
+    if (QAudio::Mode(mode) == QAudio::AudioInput)
+        errorCode = QAudio::OpenError;
+    else {
+        audioDeviceInfo = new QAudioDeviceInfoInternal(device, QAudio::AudioOutput);
+        isOpen = false;
+        audioDeviceId = AudioDeviceID(did);
+        audioUnit = 0;
+        audioIO = 0;
+        startTime = 0;
+        totalFrames = 0;
+        audioBuffer = 0;
+        internalBufferSize = QtMultimediaKitInternal::default_buffer_size;
+        clockFrequency = AudioGetHostClockFrequency() / 1000;
+        errorCode = QAudio::NoError;
+        stateCode = QAudio::StoppedState;
+        audioThreadState = Stopped;
+
+        intervalTimer = new QTimer(this);
+        intervalTimer->setInterval(1000);
+        connect(intervalTimer, SIGNAL(timeout()), SIGNAL(notify()));
+    }
+}
+
+QAudioOutputPrivate::~QAudioOutputPrivate()
+{
+    delete audioDeviceInfo;
+    close();
+}
+
+bool QAudioOutputPrivate::open()
+{
+    if (errorCode != QAudio::NoError)
+        return false;
+
+    if (isOpen)
+        return true;
+
+    ComponentDescription    cd;
+    cd.componentType = kAudioUnitType_Output;
+    cd.componentSubType = kAudioUnitSubType_HALOutput;
+    cd.componentManufacturer = kAudioUnitManufacturer_Apple;
+    cd.componentFlags = 0;
+    cd.componentFlagsMask = 0;
+
+    // Open
+    Component cp = FindNextComponent(NULL, &cd);
+    if (cp == 0) {
+        qWarning() << "QAudioOutput: Failed to find HAL Output component";
+        return false;
+    }
+
+    if (OpenAComponent(cp, &audioUnit) != noErr) {
+        qWarning() << "QAudioOutput: Unable to Open Output Component";
+        return false;
+    }
+
+    // register callback
+    AURenderCallbackStruct  cb;
+    cb.inputProc = renderCallback;
+    cb.inputProcRefCon = this;
+
+    if (AudioUnitSetProperty(audioUnit,
+                               kAudioUnitProperty_SetRenderCallback,
+                               kAudioUnitScope_Global,
+                               0,
+                               &cb,
+                               sizeof(cb)) != noErr) {
+        qWarning() << "QAudioOutput: Failed to set AudioUnit callback";
+        return false;
+    }
+
+    // Set Audio Device
+    if (AudioUnitSetProperty(audioUnit,
+                                kAudioOutputUnitProperty_CurrentDevice,
+                                kAudioUnitScope_Global,
+                                0,
+                                &audioDeviceId,
+                                sizeof(audioDeviceId)) != noErr) {
+        qWarning() << "QAudioOutput: Unable to use configured device";
+        return false;
+    }
+
+    // Set stream format
+    streamFormat = toAudioStreamBasicDescription(audioFormat);
+
+    UInt32 size = sizeof(streamFormat);
+    if (AudioUnitSetProperty(audioUnit,
+                                kAudioUnitProperty_StreamFormat,
+                                kAudioUnitScope_Input,
+                                0,
+                                &streamFormat,
+                                sizeof(streamFormat)) != noErr) {
+        qWarning() << "QAudioOutput: Unable to Set Stream information";
+        return false;
+    }
+
+    // Allocate buffer
+    UInt32 numberOfFrames = 0;
+    size = sizeof(UInt32);
+    if (AudioUnitGetProperty(audioUnit,
+                                kAudioDevicePropertyBufferFrameSize,
+                                kAudioUnitScope_Global,
+                                0,
+                                &numberOfFrames,
+                                &size) != noErr) {
+        qWarning() << "QAudioInput: Failed to get audio period size";
+        return false;
+    }
+
+    periodSizeBytes = numberOfFrames * streamFormat.mBytesPerFrame;
+    if (internalBufferSize < periodSizeBytes * 2)
+        internalBufferSize = periodSizeBytes * 2;
+    else
+        internalBufferSize -= internalBufferSize % streamFormat.mBytesPerFrame;
+
+    audioBuffer = new QtMultimediaKitInternal::QAudioOutputBuffer(internalBufferSize, periodSizeBytes, audioFormat);
+    connect(audioBuffer, SIGNAL(readyRead()), SLOT(inputReady()));  // Pull
+
+    audioIO = new MacOutputDevice(audioBuffer, this);
+
+    // Init
+    if (AudioUnitInitialize(audioUnit)) {
+        qWarning() << "QAudioOutput: Failed to initialize AudioUnit";
+        return false;
+    }
+
+    isOpen = true;
+
+    return true;
+}
+
+void QAudioOutputPrivate::close()
+{
+    if (audioUnit != 0) {
+        AudioOutputUnitStop(audioUnit);
+        AudioUnitUninitialize(audioUnit);
+        CloseComponent(audioUnit);
+    }
+
+    delete audioBuffer;
+}
+
+QAudioFormat QAudioOutputPrivate::format() const
+{
+    return audioFormat;
+}
+
+void QAudioOutputPrivate::setFormat(const QAudioFormat& fmt)
+{
+    if (stateCode == QAudio::StoppedState)
+        audioFormat = fmt;
+}
+
+void QAudioOutputPrivate::start(QIODevice* device)
+{
+    QIODevice*  op = device;
+
+    if (!audioDeviceInfo->isFormatSupported(audioFormat) || !open()) {
+        stateCode = QAudio::StoppedState;
+        errorCode = QAudio::OpenError;
+    }
+
+    reset();
+    audioBuffer->reset();
+    audioBuffer->setPrefetchDevice(op);
+
+    if (op == 0) {
+        op = audioIO;
+        stateCode = QAudio::IdleState;
+    }
+    else
+        stateCode = QAudio::ActiveState;
+
+    // Start
+    errorCode = QAudio::NoError;
+    totalFrames = 0;
+    startTime = AudioGetCurrentHostTime();
+
+    if (stateCode == QAudio::ActiveState)
+        audioThreadStart();
+
+    emit stateChanged(stateCode);
+}
+
+QIODevice* QAudioOutputPrivate::start()
+{
+    if (!audioDeviceInfo->isFormatSupported(audioFormat) || !open()) {
+        stateCode = QAudio::StoppedState;
+        errorCode = QAudio::OpenError;
+        return audioIO;
+    }
+
+    reset();
+    audioBuffer->reset();
+    audioBuffer->setPrefetchDevice(0);
+
+    stateCode = QAudio::IdleState;
+
+    // Start
+    errorCode = QAudio::NoError;
+    totalFrames = 0;
+    startTime = AudioGetCurrentHostTime();
+
+    emit stateChanged(stateCode);
+
+    return audioIO;
+}
+
+void QAudioOutputPrivate::stop()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode != QAudio::StoppedState) {
+        audioThreadDrain();
+
+        stateCode = QAudio::StoppedState;
+        errorCode = QAudio::NoError;
+        QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
+    }
+}
+
+void QAudioOutputPrivate::reset()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode != QAudio::StoppedState) {
+        audioThreadStop();
+
+        stateCode = QAudio::StoppedState;
+        errorCode = QAudio::NoError;
+        QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
+    }
+}
+
+void QAudioOutputPrivate::suspend()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode == QAudio::ActiveState || stateCode == QAudio::IdleState) {
+        audioThreadStop();
+
+        stateCode = QAudio::SuspendedState;
+        errorCode = QAudio::NoError;
+        QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
+    }
+}
+
+void QAudioOutputPrivate::resume()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode == QAudio::SuspendedState) {
+        audioThreadStart();
+
+        stateCode = QAudio::ActiveState;
+        errorCode = QAudio::NoError;
+        QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
+    }
+}
+
+int QAudioOutputPrivate::bytesFree() const
+{
+    return audioBuffer->available();
+}
+
+int QAudioOutputPrivate::periodSize() const
+{
+    return periodSizeBytes;
+}
+
+void QAudioOutputPrivate::setBufferSize(int bs)
+{
+    if (stateCode == QAudio::StoppedState)
+        internalBufferSize = bs;
+}
+
+int QAudioOutputPrivate::bufferSize() const
+{
+    return internalBufferSize;
+}
+
+void QAudioOutputPrivate::setNotifyInterval(int milliSeconds)
+{
+    if (intervalTimer->interval() == milliSeconds)
+        return;
+
+    if (milliSeconds <= 0)
+        milliSeconds = 0;
+
+    intervalTimer->setInterval(milliSeconds);
+}
+
+int QAudioOutputPrivate::notifyInterval() const
+{
+    return intervalTimer->interval();
+}
+
+qint64 QAudioOutputPrivate::processedUSecs() const
+{
+    return totalFrames * 1000000 / audioFormat.frequency();
+}
+
+qint64 QAudioOutputPrivate::elapsedUSecs() const
+{
+    if (stateCode == QAudio::StoppedState)
+        return 0;
+
+    return (AudioGetCurrentHostTime() - startTime) / (clockFrequency / 1000);
+}
+
+QAudio::Error QAudioOutputPrivate::error() const
+{
+    return errorCode;
+}
+
+QAudio::State QAudioOutputPrivate::state() const
+{
+    return stateCode;
+}
+
+void QAudioOutputPrivate::audioThreadStart()
+{
+    startTimers();
+    audioThreadState = Running;
+    AudioOutputUnitStart(audioUnit);
+}
+
+void QAudioOutputPrivate::audioThreadStop()
+{
+    stopTimers();
+    if (audioThreadState.testAndSetAcquire(Running, Stopped))
+        threadFinished.wait(&mutex);
+}
+
+void QAudioOutputPrivate::audioThreadDrain()
+{
+    stopTimers();
+    if (audioThreadState.testAndSetAcquire(Running, Draining))
+        threadFinished.wait(&mutex);
+}
+
+void QAudioOutputPrivate::audioDeviceStop()
+{
+    AudioOutputUnitStop(audioUnit);
+    audioThreadState = Stopped;
+    threadFinished.wakeOne();
+}
+
+void QAudioOutputPrivate::audioDeviceIdle()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode == QAudio::ActiveState) {
+        audioDeviceStop();
+
+        errorCode = QAudio::UnderrunError;
+        stateCode = QAudio::IdleState;
+        QMetaObject::invokeMethod(this, "deviceStopped", Qt::QueuedConnection);
+    }
+}
+
+void QAudioOutputPrivate::audioDeviceError()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode == QAudio::ActiveState) {
+        audioDeviceStop();
+
+        errorCode = QAudio::IOError;
+        stateCode = QAudio::StoppedState;
+        QMetaObject::invokeMethod(this, "deviceStopped", Qt::QueuedConnection);
+    }
+}
+
+void QAudioOutputPrivate::startTimers()
+{
+    audioBuffer->startFillTimer();
+    if (intervalTimer->interval() > 0)
+        intervalTimer->start();
+}
+
+void QAudioOutputPrivate::stopTimers()
+{
+    audioBuffer->stopFillTimer();
+    intervalTimer->stop();
+}
+
+
+void QAudioOutputPrivate::deviceStopped()
+{
+    intervalTimer->stop();
+    emit stateChanged(stateCode);
+}
+
+void QAudioOutputPrivate::inputReady()
+{
+    QMutexLocker    lock(&mutex);
+    if (stateCode == QAudio::IdleState) {
+        audioThreadStart();
+
+        stateCode = QAudio::ActiveState;
+        errorCode = QAudio::NoError;
+
+        QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
+    }
+}
+
+
+OSStatus QAudioOutputPrivate::renderCallback(void* inRefCon,
+                                    AudioUnitRenderActionFlags* ioActionFlags,
+                                    const AudioTimeStamp* inTimeStamp,
+                                    UInt32 inBusNumber,
+                                    UInt32 inNumberFrames,
+                                    AudioBufferList* ioData)
+{
+    Q_UNUSED(ioActionFlags)
+    Q_UNUSED(inTimeStamp)
+    Q_UNUSED(inBusNumber)
+    Q_UNUSED(inNumberFrames)
+
+    QAudioOutputPrivate* d = static_cast<QAudioOutputPrivate*>(inRefCon);
+
+    const int threadState = d->audioThreadState.fetchAndAddAcquire(0);
+    if (threadState == Stopped) {
+        ioData->mBuffers[0].mDataByteSize = 0;
+        d->audioDeviceStop();
+    }
+    else {
+        const UInt32    bytesPerFrame = d->streamFormat.mBytesPerFrame;
+        qint64          framesRead;
+
+        framesRead = d->audioBuffer->readFrames((char*)ioData->mBuffers[0].mData,
+                                                 ioData->mBuffers[0].mDataByteSize / bytesPerFrame);
+
+        if (framesRead > 0) {
+            ioData->mBuffers[0].mDataByteSize = framesRead * bytesPerFrame;
+            d->totalFrames += framesRead;
+        }
+        else {
+            ioData->mBuffers[0].mDataByteSize = 0;
+            if (framesRead == 0) {
+                if (threadState == Draining)
+                    d->audioDeviceStop();
+                else
+                    d->audioDeviceIdle();
+            }
+            else
+                d->audioDeviceError();
+        }
+    }
+
+    return noErr;
+}
+
+
+QT_END_NAMESPACE
+
+#include "qaudiooutput_mac_p.moc"
diff --git a/src/multimediakit/audio/qaudiooutput_mac_p.h b/src/multimediakit/audio/qaudiooutput_mac_p.h
new file mode 100644
index 000000000..5524621f9
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput_mac_p.h
@@ -0,0 +1,171 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIOOUTPUT_MAC_P_H
+#define QAUDIOOUTPUT_MAC_P_H
+
+#include <CoreServices/CoreServices.h>
+#include <CoreAudio/CoreAudio.h>
+#include <AudioUnit/AudioUnit.h>
+#include <AudioToolbox/AudioToolbox.h>
+
+#include <QtCore/qobject.h>
+#include <QtCore/qmutex.h>
+#include <QtCore/qwaitcondition.h>
+#include <QtCore/qtimer.h>
+#include <QtCore/qatomic.h>
+
+#include <qaudio.h>
+#include <qaudioformat.h>
+#include <qaudiosystem.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QIODevice;
+class QAbstractAudioDeviceInfo;
+
+namespace QtMultimediaKitInternal
+{
+class QAudioOutputBuffer;
+}
+
+class QAudioOutputPrivate : public QAbstractAudioOutput
+{
+    Q_OBJECT
+
+public:
+    bool            isOpen;
+    int             internalBufferSize;
+    int             periodSizeBytes;
+    qint64          totalFrames;
+    QAudioFormat    audioFormat;
+    QIODevice*      audioIO;
+    AudioDeviceID   audioDeviceId;
+    AudioUnit       audioUnit;
+    Float64         clockFrequency;
+    UInt64          startTime;
+    AudioStreamBasicDescription deviceFormat;
+    AudioStreamBasicDescription streamFormat;
+    QtMultimediaKitInternal::QAudioOutputBuffer*   audioBuffer;
+    QAtomicInt      audioThreadState;
+    QWaitCondition  threadFinished;
+    QMutex          mutex;
+    QTimer*         intervalTimer;
+    QAbstractAudioDeviceInfo *audioDeviceInfo;
+
+    QAudio::Error    errorCode;
+    QAudio::State    stateCode;
+
+    QAudioOutputPrivate(const QByteArray& device);
+    ~QAudioOutputPrivate();
+
+    bool open();
+    void close();
+
+    QAudioFormat format() const;
+    void setFormat(const QAudioFormat& fmt);
+
+    QIODevice* start();
+    void start(QIODevice* device);
+    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 audioThreadStart();
+    void audioThreadStop();
+    void audioThreadDrain();
+
+    void audioDeviceStop();
+    void audioDeviceIdle();
+    void audioDeviceError();
+
+    void startTimers();
+    void stopTimers();
+
+private slots:
+    void deviceStopped();
+    void inputReady();
+
+private:
+    enum { Running, Draining, Stopped };
+
+    static OSStatus renderCallback(void* inRefCon,
+                                    AudioUnitRenderActionFlags* ioActionFlags,
+                                    const AudioTimeStamp* inTimeStamp,
+                                    UInt32 inBusNumber,
+                                    UInt32 inNumberFrames,
+                                    AudioBufferList* ioData);
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/multimediakit/audio/qaudiooutput_symbian_p.cpp b/src/multimediakit/audio/qaudiooutput_symbian_p.cpp
new file mode 100644
index 000000000..3a1bc2424
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput_symbian_p.cpp
@@ -0,0 +1,713 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qaudiooutput_symbian_p.h"
+
+QT_BEGIN_NAMESPACE
+
+//-----------------------------------------------------------------------------
+// Constants
+//-----------------------------------------------------------------------------
+
+const int UnderflowTimerInterval = 50; // ms
+
+
+//-----------------------------------------------------------------------------
+// Private class
+//-----------------------------------------------------------------------------
+
+SymbianAudioOutputPrivate::SymbianAudioOutputPrivate(
+                               QAudioOutputPrivate *audioDevice)
+    :   m_audioDevice(audioDevice)
+{
+
+}
+
+SymbianAudioOutputPrivate::~SymbianAudioOutputPrivate()
+{
+
+}
+
+qint64 SymbianAudioOutputPrivate::readData(char *data, qint64 len)
+{
+    Q_UNUSED(data)
+    Q_UNUSED(len)
+    return 0;
+}
+
+qint64 SymbianAudioOutputPrivate::writeData(const char *data, qint64 len)
+{
+    qint64 totalWritten = 0;
+
+    if (m_audioDevice->state() == QAudio::ActiveState ||
+        m_audioDevice->state() == QAudio::IdleState) {
+
+        while (totalWritten < len) {
+            const qint64 written = m_audioDevice->pushData(data + totalWritten,
+                                                           len - totalWritten);
+            if (written > 0)
+                totalWritten += written;
+            else
+                break;
+        }
+    }
+
+    return totalWritten;
+}
+
+
+//-----------------------------------------------------------------------------
+// Public functions
+//-----------------------------------------------------------------------------
+
+QAudioOutputPrivate::QAudioOutputPrivate(const QByteArray &device)
+    :   m_device(device)
+    ,   m_clientBufferSize(SymbianAudio::DefaultBufferSize)
+    ,   m_notifyInterval(SymbianAudio::DefaultNotifyInterval)
+    ,   m_notifyTimer(new QTimer(this))
+    ,   m_lastNotifyPosition(0)
+    ,   m_error(QAudio::NoError)
+    ,   m_internalState(SymbianAudio::ClosedState)
+    ,   m_externalState(QAudio::StoppedState)
+    ,   m_pullMode(false)
+    ,   m_source(0)
+    ,   m_devSound(0)
+    ,   m_devSoundBuffer(0)
+    ,   m_devSoundBufferSize(0)
+    ,   m_bytesWritten(0)
+    ,   m_pushDataReady(false)
+    ,   m_bytesPadding(0)
+    ,   m_underflow(false)
+    ,   m_lastBuffer(false)
+    ,   m_underflowTimer(new QTimer(this))
+    ,   m_samplesPlayed(0)
+    ,   m_totalSamplesPlayed(0)
+{
+    connect(m_notifyTimer.data(), SIGNAL(timeout()),
+            this, SLOT(notifyTimerExpired()));
+
+    m_underflowTimer->setInterval(UnderflowTimerInterval);
+
+    connect(m_underflowTimer.data(), SIGNAL(timeout()), this,
+            SLOT(underflowTimerExpired()));
+}
+
+QAudioOutputPrivate::~QAudioOutputPrivate()
+{
+    close();
+}
+
+void QAudioOutputPrivate::setFormat(const QAudioFormat& fmt)
+{
+    m_format = fmt;
+}
+
+void QAudioOutputPrivate::start(QIODevice *device)
+{
+    stop();
+
+    // We have to set these before the call to open() because of the
+    // logic in initializingState()
+    m_pullMode = true;
+    m_source = device;
+
+    open();
+
+    if (SymbianAudio::ClosedState != m_internalState) {
+        connect(m_source, SIGNAL(readyRead()), this, SLOT(dataReady()));
+        m_elapsed.restart();
+    }
+}
+
+QIODevice* QAudioOutputPrivate::start()
+{
+    stop();
+
+    open();
+
+    if (SymbianAudio::ClosedState != m_internalState) {
+        m_source = new SymbianAudioOutputPrivate(this);
+        m_source->open(QIODevice::WriteOnly | QIODevice::Unbuffered);
+        m_elapsed.restart();
+    }
+
+    return m_source;
+}
+
+void QAudioOutputPrivate::stop()
+{
+    close();
+}
+
+void QAudioOutputPrivate::reset()
+{
+#ifndef PRE_S60_52_PLATFORM
+    int err =  m_devSound->flush();
+    if (err != 0)
+        setError(QAudio::FatalError);
+#else
+    m_totalSamplesPlayed += getSamplesPlayed();
+    m_devSound->stop();
+    m_bytesPadding = 0;
+    startPlayback();
+#endif
+}
+
+void QAudioOutputPrivate::suspend()
+{
+    if (SymbianAudio::ActiveState == m_internalState
+        || SymbianAudio::IdleState == m_internalState) {
+        m_underflowTimer->stop();
+        const qint64 samplesWritten = SymbianAudio::Utils::bytesToSamples(
+                                          m_format, m_bytesWritten);
+        const qint64 samplesPlayed = getSamplesPlayed();
+#ifdef PRE_S60_52_PLATFORM
+        m_totalSamplesPlayed += samplesPlayed;
+        m_bytesWritten = 0;
+#endif
+        const bool paused = m_devSound->pause();
+        if (paused) {
+            setState(SymbianAudio::SuspendedPausedState);
+        } else {
+            m_devSoundBuffer = 0;
+            // Calculate the amount of data dropped
+            const qint64 paddingSamples = samplesWritten - samplesPlayed;
+            Q_ASSERT(paddingSamples >= 0);
+            m_bytesPadding = SymbianAudio::Utils::samplesToBytes(m_format,
+                                                                 paddingSamples);
+            setState(SymbianAudio::SuspendedStoppedState);
+        }
+    }
+}
+
+void QAudioOutputPrivate::resume()
+{
+    if (QAudio::SuspendedState == m_externalState) {
+        if (SymbianAudio::SuspendedPausedState == m_internalState) {
+#ifndef PRE_S60_52_PLATFORM
+            setState(SymbianAudio::ActiveState);
+            if (m_devSoundBuffer != 0)
+                devsoundBufferToBeFilled(m_devSoundBuffer);
+            m_devSound->start();
+#else
+//defined in else part of macro to enable compatibility of previous code
+            m_devSound->resume();
+#endif
+        } else {
+            startPlayback();
+        }
+    }
+}
+
+int QAudioOutputPrivate::bytesFree() const
+{
+    int result = 0;
+    if (m_devSoundBuffer) {
+        const TDes8 &outputBuffer = m_devSoundBuffer->Data();
+        result = outputBuffer.MaxLength() - outputBuffer.Length();
+    }
+    return result;
+}
+
+int QAudioOutputPrivate::periodSize() const
+{
+    return bufferSize();
+}
+
+void QAudioOutputPrivate::setBufferSize(int value)
+{
+    // Note that DevSound does not allow its client to specify the buffer size.
+    // This functionality is available via custom interfaces, but since these
+    // cannot be guaranteed to work across all DevSound implementations, we
+    // do not use them here.
+    // In order to comply with the expected bevahiour of QAudioOutput, we store
+    // the value and return it from bufferSize(), but the underlying DevSound
+    // buffer size remains unchanged.
+    if (value > 0)
+        m_clientBufferSize = value;
+}
+
+int QAudioOutputPrivate::bufferSize() const
+{
+    return m_devSoundBufferSize ? m_devSoundBufferSize : m_clientBufferSize;
+}
+
+void QAudioOutputPrivate::setNotifyInterval(int ms)
+{
+    if (ms >= 0) {
+        //const int oldNotifyInterval = m_notifyInterval;
+        m_notifyInterval = ms;
+        if (m_notifyInterval && (SymbianAudio::ActiveState == m_internalState ||
+                                 SymbianAudio::IdleState == m_internalState))
+            m_notifyTimer->start(m_notifyInterval);
+        else
+            m_notifyTimer->stop();
+    }
+}
+
+int QAudioOutputPrivate::notifyInterval() const
+{
+    return m_notifyInterval;
+}
+
+qint64 QAudioOutputPrivate::processedUSecs() const
+{
+    int samplesPlayed = 0;
+
+    if (!m_devSound)
+        return samplesPlayed;
+
+    if (QAudio::SuspendedState != m_externalState)
+        samplesPlayed = getSamplesPlayed();
+
+    // Protect against division by zero
+    Q_ASSERT_X(m_format.frequency() > 0, Q_FUNC_INFO, "Invalid frequency");
+
+#ifndef PRE_S60_52_PLATFORM
+    const qint64 devSoundSamplesPlayed(m_devSound->samplesProcessed());
+    const qint64 result = qint64(1000000) *
+                          (devSoundSamplesPlayed)
+                        / m_format.frequency();
+#else
+    const qint64 result = qint64(1000000) *
+                          (samplesPlayed + m_totalSamplesPlayed)
+                        / m_format.frequency();
+#endif
+    return result;
+}
+
+qint64 QAudioOutputPrivate::elapsedUSecs() const
+{
+    const qint64 result = (QAudio::StoppedState == state()) ?
+                              0 : m_elapsed.elapsed() * 1000;
+    return result;
+}
+
+QAudio::Error QAudioOutputPrivate::error() const
+{
+    return m_error;
+}
+
+QAudio::State QAudioOutputPrivate::state() const
+{
+    return m_externalState;
+}
+
+QAudioFormat QAudioOutputPrivate::format() const
+{
+    return m_format;
+}
+
+
+//-----------------------------------------------------------------------------
+// Private functions
+//-----------------------------------------------------------------------------
+
+void QAudioOutputPrivate::notifyTimerExpired()
+{
+    const qint64 pos = processedUSecs();
+    if (pos > m_lastNotifyPosition) {
+        int count = (pos - m_lastNotifyPosition) / (m_notifyInterval * 1000);
+        while (count--) {
+            emit notify();
+            m_lastNotifyPosition += m_notifyInterval * 1000;
+        }
+    }
+}
+
+void QAudioOutputPrivate::dataReady()
+{
+    // Client-provided QIODevice has data ready to read.
+
+    Q_ASSERT_X(m_source->bytesAvailable(), Q_FUNC_INFO,
+        "readyRead signal received, but no data available");
+
+    if (!m_bytesPadding)
+        pullData();
+}
+
+void QAudioOutputPrivate::underflowTimerExpired()
+{
+    const TInt samplesPlayed = getSamplesPlayed();
+    if (m_samplesPlayed && (samplesPlayed == m_samplesPlayed)) {
+        setError(QAudio::UnderrunError);
+#ifndef PRE_S60_52_PLATFORM
+        m_underflowTimer->stop();
+#endif
+    } else {
+        m_samplesPlayed = samplesPlayed;
+        m_underflowTimer->start();
+    }
+}
+
+void QAudioOutputPrivate::devsoundInitializeComplete(int err)
+{
+    Q_ASSERT_X(SymbianAudio::InitializingState == m_internalState,
+        Q_FUNC_INFO, "Invalid state");
+
+    if (!err && m_devSound->isFormatSupported(m_format))
+        startPlayback();
+    else
+        setError(QAudio::OpenError);
+}
+
+void QAudioOutputPrivate::devsoundBufferToBeFilled(CMMFBuffer *bufferBase)
+{
+    // Following receipt of this signal, DevSound should not provide another
+    // buffer until we have returned the current one.
+    Q_ASSERT_X(!m_devSoundBuffer, Q_FUNC_INFO, "Buffer already held");
+
+    // Will be returned to DevSoundWrapper by bufferProcessed().
+    m_devSoundBuffer = static_cast<CMMFDataBuffer*>(bufferBase);
+#ifndef PRE_S60_52_PLATFORM
+    if (m_externalState == QAudio::SuspendedState) {
+        // This condition occurs when buffertobefilled callback is received after
+        // pause command is processed.
+        return;
+     }
+#endif
+
+    if (!m_devSoundBufferSize)
+        m_devSoundBufferSize = m_devSoundBuffer->Data().MaxLength();
+
+    writePaddingData();
+
+    if (m_pullMode && isDataReady() && !m_bytesPadding)
+        pullData();
+}
+
+void QAudioOutputPrivate::devsoundPlayError(int err)
+{
+    switch (err) {
+    case KErrUnderflow:
+        m_underflow = true;
+        if (m_pullMode && !m_lastBuffer)
+            setError(QAudio::UnderrunError);
+        else
+            setState(SymbianAudio::IdleState);
+        break;
+    case KErrOverflow:
+        // Silently consume this error when in playback mode
+        break;
+    default:
+        setError(QAudio::IOError);
+        break;
+    }
+}
+
+void QAudioOutputPrivate::open()
+{
+    Q_ASSERT_X(SymbianAudio::ClosedState == m_internalState,
+        Q_FUNC_INFO, "DevSound already opened");
+
+    Q_ASSERT(!m_devSound);
+    m_devSound = new SymbianAudio::DevSoundWrapper(QAudio::AudioOutput, this);
+
+    connect(m_devSound, SIGNAL(initializeComplete(int)),
+            this, SLOT(devsoundInitializeComplete(int)));
+    connect(m_devSound, SIGNAL(bufferToBeProcessed(CMMFBuffer *)),
+            this, SLOT(devsoundBufferToBeFilled(CMMFBuffer *)));
+    connect(m_devSound, SIGNAL(processingError(int)),
+            this, SLOT(devsoundPlayError(int)));
+
+    setState(SymbianAudio::InitializingState);
+    m_devSound->initialize(m_format.codec());
+}
+
+void QAudioOutputPrivate::startPlayback()
+{
+    bool ok = m_devSound->setFormat(m_format);
+    if (ok)
+        ok = m_devSound->start();
+
+    if (ok) {
+        if (isDataReady())
+            setState(SymbianAudio::ActiveState);
+        else
+            setState(SymbianAudio::IdleState);
+
+        if (m_notifyInterval)
+            m_notifyTimer->start(m_notifyInterval);
+        m_underflow = false;
+
+        Q_ASSERT(m_devSound->samplesProcessed() == 0);
+
+        writePaddingData();
+
+        if (m_pullMode && m_source->bytesAvailable() && !m_bytesPadding)
+            dataReady();
+    } else {
+        setError(QAudio::OpenError);
+        close();
+    }
+}
+
+void QAudioOutputPrivate::writePaddingData()
+{
+    // See comments in suspend()
+
+    while (m_devSoundBuffer && m_bytesPadding) {
+        if (SymbianAudio::IdleState == m_internalState)
+            setState(SymbianAudio::ActiveState);
+
+        TDes8 &outputBuffer = m_devSoundBuffer->Data();
+        const qint64 outputBytes = bytesFree();
+        const qint64 paddingBytes = outputBytes < m_bytesPadding ?
+                                        outputBytes : m_bytesPadding;
+        unsigned char *ptr = const_cast<unsigned char*>(outputBuffer.Ptr());
+        Mem::FillZ(ptr, paddingBytes);
+        outputBuffer.SetLength(outputBuffer.Length() + paddingBytes);
+        m_bytesPadding -= paddingBytes;
+        Q_ASSERT(m_bytesPadding >= 0);
+
+        if (m_pullMode && m_source->atEnd())
+            lastBufferFilled();
+        if ((paddingBytes == outputBytes) || !m_bytesPadding)
+            bufferFilled();
+    }
+}
+
+qint64 QAudioOutputPrivate::pushData(const char *data, qint64 len)
+{
+    // Data has been written to SymbianAudioOutputPrivate
+
+    Q_ASSERT_X(!m_pullMode, Q_FUNC_INFO,
+        "pushData called when in pull mode");
+
+    const unsigned char *const inputPtr =
+        reinterpret_cast<const unsigned char*>(data);
+    qint64 bytesWritten = 0;
+
+    if (SymbianAudio::IdleState == m_internalState)
+        setState(SymbianAudio::ActiveState);
+
+    while (m_devSoundBuffer && (bytesWritten < len)) {
+        // writePaddingData() is called from BufferToBeFilled(), so we should
+        // never have any padding data left at this point.
+        Q_ASSERT_X(0 == m_bytesPadding, Q_FUNC_INFO,
+            "Padding bytes remaining in pushData");
+
+        TDes8 &outputBuffer = m_devSoundBuffer->Data();
+
+        const qint64 outputBytes = bytesFree();
+        const qint64 inputBytes = len - bytesWritten;
+        const qint64 copyBytes = outputBytes < inputBytes ?
+                                     outputBytes : inputBytes;
+
+        outputBuffer.Append(inputPtr + bytesWritten, copyBytes);
+        bytesWritten += copyBytes;
+
+        bufferFilled();
+    }
+
+    m_pushDataReady = (bytesWritten < len);
+
+    // If DevSound is still initializing (m_internalState == InitializingState),
+    // we cannot transition m_internalState to ActiveState, but we must emit
+    // an (external) state change from IdleState to ActiveState.  The following
+    // call triggers this signal.
+    setState(m_internalState);
+
+    return bytesWritten;
+}
+
+void QAudioOutputPrivate::pullData()
+{
+    Q_ASSERT_X(m_pullMode, Q_FUNC_INFO,
+        "pullData called when in push mode");
+
+    // writePaddingData() is called by BufferToBeFilled() before pullData(),
+    // so we should never have any padding data left at this point.
+    Q_ASSERT_X(0 == m_bytesPadding, Q_FUNC_INFO,
+        "Padding bytes remaining in pullData");
+
+    qint64 inputBytes = m_source->bytesAvailable();
+    while (m_devSoundBuffer && inputBytes) {
+        if (SymbianAudio::IdleState == m_internalState)
+            setState(SymbianAudio::ActiveState);
+
+        TDes8 &outputBuffer = m_devSoundBuffer->Data();
+
+        const qint64 outputBytes = bytesFree();
+        const qint64 copyBytes = outputBytes < inputBytes ?
+                                     outputBytes : inputBytes;
+
+        char *outputPtr = (char*)(outputBuffer.Ptr() + outputBuffer.Length());
+        const qint64 bytesCopied = m_source->read(outputPtr, copyBytes);
+        
+        //Partial buffers can be sent to DevSound. This assert not required.
+        //Q_ASSERT(bytesCopied == copyBytes);
+        outputBuffer.SetLength(outputBuffer.Length() + bytesCopied);
+        inputBytes -= bytesCopied;
+
+        if(bytesCopied == 0)
+        	return;
+
+        if (m_source->atEnd())
+            lastBufferFilled();
+        else
+            bufferFilled();
+    }
+}
+
+void QAudioOutputPrivate::bufferFilled()
+{
+    Q_ASSERT_X(m_devSoundBuffer, Q_FUNC_INFO, "No buffer to return");
+
+    const TDes8 &outputBuffer = m_devSoundBuffer->Data();
+    m_bytesWritten += outputBuffer.Length();
+
+    m_devSoundBuffer = 0;
+
+    m_samplesPlayed = getSamplesPlayed();
+    m_underflowTimer->start();
+
+    if (QAudio::UnderrunError == m_error)
+        m_error = QAudio::NoError;
+
+    m_devSound->bufferProcessed();
+}
+
+void QAudioOutputPrivate::lastBufferFilled()
+{
+    Q_ASSERT_X(m_devSoundBuffer, Q_FUNC_INFO, "No buffer to fill");
+    Q_ASSERT_X(!m_lastBuffer, Q_FUNC_INFO, "Last buffer already sent");
+    m_lastBuffer = true;
+    m_devSoundBuffer->SetLastBuffer(ETrue);
+    bufferFilled();
+}
+
+void QAudioOutputPrivate::close()
+{
+    m_lastNotifyPosition = 0;
+    m_underflowTimer->stop();
+
+    m_error = QAudio::NoError;
+
+    if (m_devSound)
+        m_devSound->stop();
+    delete m_devSound;
+    m_devSound = 0;
+
+    m_devSoundBuffer = 0;
+    m_devSoundBufferSize = 0;
+
+    if (!m_pullMode) // m_source is owned
+        delete m_source;
+    m_pullMode = false;
+    m_source = 0;
+
+    m_bytesWritten = 0;
+    m_pushDataReady = false;
+    m_bytesPadding = 0;
+    m_underflow = false;
+    m_lastBuffer = false;
+    m_samplesPlayed = 0;
+    m_totalSamplesPlayed = 0;
+
+    setState(SymbianAudio::ClosedState);
+}
+
+qint64 QAudioOutputPrivate::getSamplesPlayed() const
+{
+    qint64 result = 0;
+    if (m_devSound) {
+        const qint64 samplesWritten = SymbianAudio::Utils::bytesToSamples(
+                                          m_format, m_bytesWritten);
+
+        if (m_underflow) {
+            result = samplesWritten;
+        } else {
+            // This is necessary because some DevSound implementations report
+            // that they have played more data than has actually been provided to them
+            // by the client.
+            const qint64 devSoundSamplesPlayed(m_devSound->samplesProcessed());
+            result = qMin(devSoundSamplesPlayed, samplesWritten);
+        }
+    }
+    return result;
+}
+
+void QAudioOutputPrivate::setError(QAudio::Error error)
+{
+    m_error = error;
+
+    // Although no state transition actually occurs here, a stateChanged event
+    // must be emitted to inform the client that the call to start() was
+    // unsuccessful.
+    if (QAudio::OpenError == error) {
+        emit stateChanged(QAudio::StoppedState);
+    } else {
+        if (QAudio::UnderrunError == error)
+            setState(SymbianAudio::IdleState);
+        else
+            // Close the DevSound instance.  This causes a transition to
+            // StoppedState.  This must be done asynchronously in case the
+            // current function was called from a DevSound event handler, in which
+            // case deleting the DevSound instance may cause an exception.
+            QMetaObject::invokeMethod(this, "close", Qt::QueuedConnection);
+    }
+}
+
+void QAudioOutputPrivate::setState(SymbianAudio::State newInternalState)
+{
+    const QAudio::State oldExternalState = m_externalState;
+    m_internalState = newInternalState;
+    m_externalState = SymbianAudio::Utils::stateNativeToQt(m_internalState);
+
+    if (m_externalState != QAudio::ActiveState &&
+        m_externalState != QAudio::IdleState)
+        m_notifyTimer->stop();
+
+    if (m_externalState != oldExternalState)
+        emit stateChanged(m_externalState);
+}
+
+bool QAudioOutputPrivate::isDataReady() const
+{
+    return (m_source && m_source->bytesAvailable())
+        ||  m_bytesPadding
+        ||  m_pushDataReady;
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qaudiooutput_symbian_p.cpp"
diff --git a/src/multimediakit/audio/qaudiooutput_symbian_p.h b/src/multimediakit/audio/qaudiooutput_symbian_p.h
new file mode 100644
index 000000000..2e2fd5db2
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput_symbian_p.h
@@ -0,0 +1,201 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIOOUTPUT_SYMBIAN_P_H
+#define QAUDIOOUTPUT_SYMBIAN_P_H
+
+#include <qaudiosystem.h>
+#include <QTime>
+#include <QTimer>
+#include <sounddevice.h>
+#include "qaudio_symbian_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QAudioOutputPrivate;
+
+class SymbianAudioOutputPrivate : public QIODevice
+{
+    friend class QAudioOutputPrivate;
+    Q_OBJECT
+public:
+    SymbianAudioOutputPrivate(QAudioOutputPrivate *audio);
+    ~SymbianAudioOutputPrivate();
+
+    qint64 readData(char *data, qint64 len);
+    qint64 writeData(const char *data, qint64 len);
+
+private:
+    QAudioOutputPrivate *const m_audioDevice;
+};
+
+class QAudioOutputPrivate
+    :   public QAbstractAudioOutput
+{
+    friend class SymbianAudioOutputPrivate;
+    Q_OBJECT
+public:
+    QAudioOutputPrivate(const QByteArray &device);
+    ~QAudioOutputPrivate();
+
+    // QAbstractAudioOutput
+    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;
+    QAudioFormat format() const;
+    void setFormat(const QAudioFormat& fmt);
+
+private slots:
+    void dataReady();
+    void notifyTimerExpired();
+    void underflowTimerExpired();
+    void devsoundInitializeComplete(int err);
+    void devsoundBufferToBeFilled(CMMFBuffer *);
+    void devsoundPlayError(int err);
+
+private:
+   void open();
+   void startPlayback();
+   void writePaddingData();
+   qint64 pushData(const char *data, qint64 len);
+   void pullData();
+   void bufferFilled();
+   void lastBufferFilled();
+   Q_INVOKABLE void close();
+
+   qint64 getSamplesPlayed() const;
+
+   void setError(QAudio::Error error);
+   void setState(SymbianAudio::State state);
+
+   bool isDataReady() const;
+
+private:
+    const QByteArray m_device;
+    QAudioFormat m_format;
+
+    int m_clientBufferSize;
+    int m_notifyInterval;
+    QScopedPointer<QTimer> m_notifyTimer;
+    qint64 m_lastNotifyPosition;
+    QTime m_elapsed;
+    QAudio::Error m_error;
+
+    SymbianAudio::State m_internalState;
+    QAudio::State m_externalState;
+
+    bool m_pullMode;
+    QIODevice *m_source;
+
+    SymbianAudio::DevSoundWrapper* m_devSound;
+
+    // Buffer provided by DevSound, to be filled with data.
+    CMMFDataBuffer *m_devSoundBuffer;
+
+    int m_devSoundBufferSize;
+
+    // Number of bytes transferred from QIODevice to QAudioOutput.  It is
+    // necessary to count this because data is dropped when suspend() is
+    // called.  The difference between the position reported by DevSound and
+    // this value allows us to calculate m_bytesPadding;
+    quint32 m_bytesWritten;
+
+    // True if client has provided data while the audio subsystem was not
+    // ready to consume it.
+    bool m_pushDataReady;
+
+    // Number of zero bytes which will be written when client calls resume().
+    quint32 m_bytesPadding;
+
+    // True if PlayError(KErrUnderflow) has been called.
+    bool m_underflow;
+
+    // True if a buffer marked with the "last buffer" flag has been provided
+    // to DevSound.
+    bool m_lastBuffer;
+
+    // Some DevSound implementations ignore all underflow errors raised by the
+    // audio driver, unless the last buffer flag has been set by the client.
+    // In push-mode playback, this flag will never be set, so the underflow
+    // error will never be reported.  In order to work around this, a timer
+    // is used, which gets reset every time the client provides more data.  If
+    // the timer expires, an underflow error is raised by this object.
+    QScopedPointer<QTimer> m_underflowTimer;
+
+    // Result of previous call to CMMFDevSound::SamplesPlayed().  This value is
+    // used to determine whether, when m_underflowTimer expires, an
+    // underflow error has actually occurred.
+    quint32 m_samplesPlayed;
+
+    // Samples played up to the last call to suspend().  It is necessary
+    // to cache this because suspend() is implemented using
+    // CMMFDevSound::Stop(), which resets DevSound's SamplesPlayed() counter.
+    quint32 m_totalSamplesPlayed;
+
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimediakit/audio/qaudiooutput_win32_p.cpp b/src/multimediakit/audio/qaudiooutput_win32_p.cpp
new file mode 100644
index 000000000..3f465de37
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput_win32_p.cpp
@@ -0,0 +1,715 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// INTERNAL USE ONLY: Do NOT use for any other purpose.
+//
+
+#include "qaudiooutput_win32_p.h"
+
+#ifndef SPEAKER_FRONT_LEFT
+    #define SPEAKER_FRONT_LEFT            0x00000001
+    #define SPEAKER_FRONT_RIGHT           0x00000002
+    #define SPEAKER_FRONT_CENTER          0x00000004
+    #define SPEAKER_LOW_FREQUENCY         0x00000008
+    #define SPEAKER_BACK_LEFT             0x00000010
+    #define SPEAKER_BACK_RIGHT            0x00000020
+    #define SPEAKER_FRONT_LEFT_OF_CENTER  0x00000040
+    #define SPEAKER_FRONT_RIGHT_OF_CENTER 0x00000080
+    #define SPEAKER_BACK_CENTER           0x00000100
+    #define SPEAKER_SIDE_LEFT             0x00000200
+    #define SPEAKER_SIDE_RIGHT            0x00000400
+    #define SPEAKER_TOP_CENTER            0x00000800
+    #define SPEAKER_TOP_FRONT_LEFT        0x00001000
+    #define SPEAKER_TOP_FRONT_CENTER      0x00002000
+    #define SPEAKER_TOP_FRONT_RIGHT       0x00004000
+    #define SPEAKER_TOP_BACK_LEFT         0x00008000
+    #define SPEAKER_TOP_BACK_CENTER       0x00010000
+    #define SPEAKER_TOP_BACK_RIGHT        0x00020000
+    #define SPEAKER_RESERVED              0x7FFC0000
+    #define SPEAKER_ALL                   0x80000000
+#endif
+
+#ifndef _WAVEFORMATEXTENSIBLE_
+
+    #define _WAVEFORMATEXTENSIBLE_
+    typedef struct
+    {
+        WAVEFORMATEX Format;          // Base WAVEFORMATEX data
+        union
+        {
+            WORD wValidBitsPerSample; // Valid bits in each sample container
+            WORD wSamplesPerBlock;    // Samples per block of audio data; valid
+                                      // if wBitsPerSample=0 (but rarely used).
+            WORD wReserved;           // Zero if neither case above applies.
+        } Samples;
+        DWORD dwChannelMask;          // Positions of the audio channels
+        GUID SubFormat;               // Format identifier GUID
+    } WAVEFORMATEXTENSIBLE, *PWAVEFORMATEXTENSIBLE, *LPPWAVEFORMATEXTENSIBLE;
+    typedef const WAVEFORMATEXTENSIBLE* LPCWAVEFORMATEXTENSIBLE;
+
+#endif
+
+#if !defined(WAVE_FORMAT_EXTENSIBLE)
+#define WAVE_FORMAT_EXTENSIBLE 0xFFFE
+#endif
+
+//#define DEBUG_AUDIO 1
+
+QT_BEGIN_NAMESPACE
+
+QAudioOutputPrivate::QAudioOutputPrivate(const QByteArray &device)
+{
+    bytesAvailable = 0;
+    buffer_size = 0;
+    period_size = 0;
+    m_device = device;
+    totalTimeValue = 0;
+    intervalTime = 1000;
+    audioBuffer = 0;
+    errorState = QAudio::NoError;
+    deviceState = QAudio::StoppedState;
+    audioSource = 0;
+    pullMode = true;
+    finished = false;
+}
+
+QAudioOutputPrivate::~QAudioOutputPrivate()
+{
+    mutex.lock();
+    finished = true;
+    mutex.unlock();
+
+    close();
+}
+
+void CALLBACK QAudioOutputPrivate::waveOutProc( HWAVEOUT hWaveOut, UINT uMsg,
+        DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 )
+{
+    Q_UNUSED(dwParam1)
+    Q_UNUSED(dwParam2)
+    Q_UNUSED(hWaveOut)
+
+    QAudioOutputPrivate* qAudio;
+    qAudio = (QAudioOutputPrivate*)(dwInstance);
+    if(!qAudio)
+        return;
+
+    QMutexLocker(&qAudio->mutex);
+
+    switch(uMsg) {
+        case WOM_OPEN:
+            qAudio->feedback();
+            break;
+        case WOM_CLOSE:
+            return;
+        case WOM_DONE:
+            if(qAudio->finished || qAudio->buffer_size == 0 || qAudio->period_size == 0) {
+                return;
+	    }
+            qAudio->waveFreeBlockCount++;
+            if(qAudio->waveFreeBlockCount >= qAudio->buffer_size/qAudio->period_size)
+                qAudio->waveFreeBlockCount = qAudio->buffer_size/qAudio->period_size;
+            qAudio->feedback();
+            break;
+        default:
+            return;
+    }
+}
+
+WAVEHDR* QAudioOutputPrivate::allocateBlocks(int size, int count)
+{
+    int i;
+    unsigned char* buffer;
+    WAVEHDR* blocks;
+    DWORD totalBufferSize = (size + sizeof(WAVEHDR))*count;
+
+    if((buffer=(unsigned char*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,
+                    totalBufferSize)) == 0) {
+        qWarning("QAudioOutput: Memory allocation error");
+        return 0;
+    }
+    blocks = (WAVEHDR*)buffer;
+    buffer += sizeof(WAVEHDR)*count;
+    for(i = 0; i < count; i++) {
+        blocks[i].dwBufferLength = size;
+        blocks[i].lpData = (LPSTR)buffer;
+        buffer += size;
+    }
+    return blocks;
+}
+
+void QAudioOutputPrivate::freeBlocks(WAVEHDR* blockArray)
+{
+    WAVEHDR* blocks = blockArray;
+
+    int count = buffer_size/period_size;
+
+    for(int i = 0; i < count; i++) {
+        waveOutUnprepareHeader(hWaveOut,blocks, sizeof(WAVEHDR));
+        blocks++;
+    }
+    HeapFree(GetProcessHeap(), 0, blockArray);
+}
+
+QAudioFormat QAudioOutputPrivate::format() const
+{
+    return settings;
+}
+
+void QAudioOutputPrivate::setFormat(const QAudioFormat& fmt)
+{
+    if (deviceState == QAudio::StoppedState)
+        settings = fmt;
+}
+
+void QAudioOutputPrivate::start(QIODevice* device)
+{
+    if(deviceState != QAudio::StoppedState)
+        close();
+
+    if(!pullMode && audioSource)
+        delete audioSource;
+
+    pullMode = true;
+    audioSource = device;
+
+    deviceState = QAudio::ActiveState;
+
+    if(!open())
+        return;
+
+    emit stateChanged(deviceState);
+}
+
+QIODevice* QAudioOutputPrivate::start()
+{
+    if(deviceState != QAudio::StoppedState)
+        close();
+
+    if(!pullMode && audioSource)
+        delete audioSource;
+
+    pullMode = false;
+    audioSource = new OutputPrivate(this);
+    audioSource->open(QIODevice::WriteOnly|QIODevice::Unbuffered);
+
+    deviceState = QAudio::IdleState;
+
+    if(!open())
+        return 0;
+
+    emit stateChanged(deviceState);
+
+    return audioSource;
+}
+
+void QAudioOutputPrivate::stop()
+{
+    if(deviceState == QAudio::StoppedState)
+        return;
+    close();
+    if(!pullMode && audioSource) {
+        delete audioSource;
+        audioSource = 0;
+    }
+    emit stateChanged(deviceState);
+}
+
+bool QAudioOutputPrivate::open()
+{
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
+#endif
+
+    period_size = 0;
+
+    if (!settings.isValid()) {
+        qWarning("QAudioOutput: open error, invalid format.");
+    } else if (settings.channelCount() <= 0) {
+        qWarning("QAudioOutput: open error, invalid number of channels (%d).",
+                 settings.channelCount());
+    } else if (settings.sampleSize() <= 0) {
+        qWarning("QAudioOutput: open error, invalid sample size (%d).",
+                 settings.sampleSize());
+    } else if (settings.frequency() < 8000 || settings.frequency() > 96000) {
+        qWarning("QAudioOutput: open error, frequency out of range (%d).", settings.frequency());
+    } else if (buffer_size == 0) {
+        // Default buffer size, 200ms, default period size is 40ms
+        buffer_size
+                = (settings.frequency()
+                * settings.channelCount()
+                * settings.sampleSize()
+                + 39) / 40;
+        period_size = buffer_size / 5;
+    } else {
+        period_size = buffer_size / 5;
+    }
+
+    if (period_size == 0) {
+        errorState = QAudio::OpenError;
+        deviceState = QAudio::StoppedState;
+        emit stateChanged(deviceState);
+        return false;
+    }
+
+    waveBlocks = allocateBlocks(period_size, buffer_size/period_size);
+
+    mutex.lock();
+    waveFreeBlockCount = buffer_size/period_size;
+    mutex.unlock();
+
+    waveCurrentBlock = 0;
+
+    if(audioBuffer == 0)
+        audioBuffer = new char[buffer_size];
+
+    timeStamp.restart();
+    elapsedTimeOffset = 0;
+
+    wfx.nSamplesPerSec = settings.frequency();
+    wfx.wBitsPerSample = settings.sampleSize();
+    wfx.nChannels = settings.channels();
+    wfx.cbSize = 0;
+
+    bool surround = false;
+
+    if (settings.channels() > 2)
+        surround = true;
+
+    wfx.wFormatTag = WAVE_FORMAT_PCM;
+    wfx.nBlockAlign = (wfx.wBitsPerSample >> 3) * wfx.nChannels;
+    wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec;
+
+    QDataStream ds(&m_device, QIODevice::ReadOnly);
+    quint32 deviceId;
+    ds >> deviceId;
+
+    if (!surround) {
+        if (waveOutOpen(&hWaveOut, UINT_PTR(deviceId), &wfx,
+                    (DWORD_PTR)&waveOutProc,
+                    (DWORD_PTR) this,
+                    CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
+            errorState = QAudio::OpenError;
+            deviceState = QAudio::StoppedState;
+            emit stateChanged(deviceState);
+            qWarning("QAudioOutput: open error");
+            return false;
+        }
+    } else {
+        WAVEFORMATEXTENSIBLE wfex;
+        wfex.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
+        wfex.Format.nChannels = settings.channels();
+        wfex.Format.wBitsPerSample = settings.sampleSize();
+        wfex.Format.nSamplesPerSec = settings.frequency();
+        wfex.Format.nBlockAlign = wfex.Format.nChannels*wfex.Format.wBitsPerSample/8;
+        wfex.Format.nAvgBytesPerSec=wfex.Format.nSamplesPerSec*wfex.Format.nBlockAlign;
+        wfex.Samples.wValidBitsPerSample=wfex.Format.wBitsPerSample;
+        static const GUID _KSDATAFORMAT_SUBTYPE_PCM = {
+             0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
+        wfex.SubFormat=_KSDATAFORMAT_SUBTYPE_PCM;
+        wfex.Format.cbSize=22;
+
+        wfex.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
+        if (settings.channels() >= 4)
+            wfex.dwChannelMask |= SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
+        if (settings.channels() >= 6)
+            wfex.dwChannelMask |= SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY;
+        if (settings.channels() == 8)
+            wfex.dwChannelMask |= SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT;
+
+        if (waveOutOpen(&hWaveOut, UINT_PTR(deviceId), &wfex.Format,
+                    (DWORD_PTR)&waveOutProc,
+                    (DWORD_PTR) this,
+                    CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
+            errorState = QAudio::OpenError;
+            deviceState = QAudio::StoppedState;
+            emit stateChanged(deviceState);
+            qWarning("QAudioOutput: open error");
+            return false;
+        }
+    }
+
+    totalTimeValue = 0;
+    timeStampOpened.restart();
+    elapsedTimeOffset = 0;
+
+    errorState = QAudio::NoError;
+    if(pullMode) {
+        deviceState = QAudio::ActiveState;
+        QTimer::singleShot(10, this, SLOT(feedback()));
+    } else
+        deviceState = QAudio::IdleState;
+
+    return true;
+}
+
+void QAudioOutputPrivate::close()
+{
+    if(deviceState == QAudio::StoppedState)
+        return;
+
+    deviceState = QAudio::StoppedState;
+    errorState = QAudio::NoError;
+    int delay = (buffer_size-bytesFree())*1000/(settings.frequency()
+                  *settings.channels()*(settings.sampleSize()/8));
+    waveOutReset(hWaveOut);
+    Sleep(delay+10);
+
+    freeBlocks(waveBlocks);
+    waveOutClose(hWaveOut);
+    delete [] audioBuffer;
+    audioBuffer = 0;
+    buffer_size = 0;
+}
+
+int QAudioOutputPrivate::bytesFree() const
+{
+    int buf;
+    buf = waveFreeBlockCount*period_size;
+
+    return buf;
+}
+
+int QAudioOutputPrivate::periodSize() const
+{
+    return period_size;
+}
+
+void QAudioOutputPrivate::setBufferSize(int value)
+{
+    if(deviceState == QAudio::StoppedState)
+        buffer_size = value;
+}
+
+int QAudioOutputPrivate::bufferSize() const
+{
+    return buffer_size;
+}
+
+void QAudioOutputPrivate::setNotifyInterval(int ms)
+{
+    intervalTime = qMax(0, ms);
+}
+
+int QAudioOutputPrivate::notifyInterval() const
+{
+    return intervalTime;
+}
+
+qint64 QAudioOutputPrivate::processedUSecs() const
+{
+    if (deviceState == QAudio::StoppedState)
+        return 0;
+    qint64 result = qint64(1000000) * totalTimeValue /
+        (settings.channels()*(settings.sampleSize()/8)) /
+        settings.frequency();
+
+    return result;
+}
+
+qint64 QAudioOutputPrivate::write( const char *data, qint64 len )
+{
+    // Write out some audio data
+    if (deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
+        return 0;
+
+    char* p = (char*)data;
+    int l = (int)len;
+
+    WAVEHDR* current;
+    int remain;
+    current = &waveBlocks[waveCurrentBlock];
+    while(l > 0) {
+        mutex.lock();
+        if(waveFreeBlockCount==0) {
+            mutex.unlock();
+            break;
+        }
+        mutex.unlock();
+
+        if(current->dwFlags & WHDR_PREPARED)
+            waveOutUnprepareHeader(hWaveOut, current, sizeof(WAVEHDR));
+
+        if(l < period_size)
+            remain = l;
+        else
+            remain = period_size;
+        memcpy(current->lpData, p, remain);
+
+        l -= remain;
+        p += remain;
+        current->dwBufferLength = remain;
+        waveOutPrepareHeader(hWaveOut, current, sizeof(WAVEHDR));
+        waveOutWrite(hWaveOut, current, sizeof(WAVEHDR));
+
+        mutex.lock();
+        waveFreeBlockCount--;
+#ifdef DEBUG_AUDIO
+        qDebug("write out l=%d, waveFreeBlockCount=%d",
+                current->dwBufferLength,waveFreeBlockCount);
+#endif
+        mutex.unlock();
+
+        totalTimeValue += current->dwBufferLength;
+        waveCurrentBlock++;
+        waveCurrentBlock %= buffer_size/period_size;
+        current = &waveBlocks[waveCurrentBlock];
+        current->dwUser = 0;
+        errorState = QAudio::NoError;
+        if (deviceState != QAudio::ActiveState) {
+            deviceState = QAudio::ActiveState;
+            emit stateChanged(deviceState);
+        }
+    }
+    return (len-l);
+}
+
+void QAudioOutputPrivate::resume()
+{
+    if(deviceState == QAudio::SuspendedState) {
+        deviceState = QAudio::ActiveState;
+        errorState = QAudio::NoError;
+        waveOutRestart(hWaveOut);
+        QTimer::singleShot(10, this, SLOT(feedback()));
+        emit stateChanged(deviceState);
+    }
+}
+
+void QAudioOutputPrivate::suspend()
+{
+    if(deviceState == QAudio::ActiveState || deviceState == QAudio::IdleState) {
+        int delay = (buffer_size-bytesFree())*1000/(settings.frequency()
+                *settings.channels()*(settings.sampleSize()/8));
+        waveOutPause(hWaveOut);
+        Sleep(delay+10);
+        deviceState = QAudio::SuspendedState;
+        errorState = QAudio::NoError;
+        emit stateChanged(deviceState);
+    }
+}
+
+void QAudioOutputPrivate::feedback()
+{
+#ifdef DEBUG_AUDIO
+    QTime now(QTime::currentTime());
+    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :feedback()";
+#endif
+    bytesAvailable = bytesFree();
+
+    if(!(deviceState==QAudio::StoppedState||deviceState==QAudio::SuspendedState)) {
+        if(bytesAvailable >= period_size)
+            QMetaObject::invokeMethod(this, "deviceReady", Qt::QueuedConnection);
+    }
+}
+
+bool QAudioOutputPrivate::deviceReady()
+{
+    if(deviceState == QAudio::StoppedState || deviceState == QAudio::SuspendedState)
+        return false;
+
+    if(pullMode) {
+        int chunks = bytesAvailable/period_size;
+#ifdef DEBUG_AUDIO
+        qDebug()<<"deviceReady() avail="<<bytesAvailable<<" bytes, period size="<<period_size<<" bytes";
+        qDebug()<<"deviceReady() no. of chunks that can fit ="<<chunks<<", chunks in bytes ="<<chunks*period_size;
+#endif
+        bool startup = false;
+        if(totalTimeValue == 0)
+	    startup = true;
+
+	bool full=false;
+
+        mutex.lock();
+	if(waveFreeBlockCount==0) full = true;
+        mutex.unlock();
+
+	if (full){
+#ifdef DEBUG_AUDIO
+            qDebug() << "Skipping data as unable to write";
+#endif
+	    if((timeStamp.elapsed() + elapsedTimeOffset) > intervalTime ) {
+                emit notify();
+		elapsedTimeOffset = timeStamp.elapsed() + elapsedTimeOffset - intervalTime;
+		timeStamp.restart();
+	    }
+	    return true;
+	}
+
+        if(startup)
+	    waveOutPause(hWaveOut);
+        int input = period_size*chunks;
+        int l = audioSource->read(audioBuffer,input);
+        if(l > 0) {
+            int out= write(audioBuffer,l);
+            if(out > 0) {
+                if (deviceState != QAudio::ActiveState) {
+                    deviceState = QAudio::ActiveState;
+                    emit stateChanged(deviceState);
+                }
+            }
+            if ( out < l) {
+                // Didn't write all data
+                audioSource->seek(audioSource->pos()-(l-out));
+            }
+	    if(startup)
+	        waveOutRestart(hWaveOut);
+        } else if(l == 0) {
+            bytesAvailable = bytesFree();
+
+            int check = 0;
+
+            mutex.lock();
+            check = waveFreeBlockCount;
+            mutex.unlock();
+
+            if(check == buffer_size/period_size) {
+                if (deviceState != QAudio::IdleState) {
+                    errorState = QAudio::UnderrunError;
+                    deviceState = QAudio::IdleState;
+                    emit stateChanged(deviceState);
+                }
+            }
+
+        } else if(l < 0) {
+            bytesAvailable = bytesFree();
+            if (errorState != QAudio::IOError)
+                errorState = QAudio::IOError;
+        }
+    } else {
+        int buffered;
+
+        mutex.lock();
+	buffered = waveFreeBlockCount;
+        mutex.unlock();
+
+        if (buffered >= buffer_size/period_size && deviceState == QAudio::ActiveState) {
+            if (deviceState != QAudio::IdleState) {
+                errorState = QAudio::UnderrunError;
+                deviceState = QAudio::IdleState;
+                emit stateChanged(deviceState);
+            }
+        }
+    }
+    if(deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
+        return true;
+
+    if(intervalTime && (timeStamp.elapsed() + elapsedTimeOffset) > intervalTime) {
+        emit notify();
+	elapsedTimeOffset = timeStamp.elapsed() + elapsedTimeOffset - intervalTime;
+        timeStamp.restart();
+    }
+
+    return true;
+}
+
+qint64 QAudioOutputPrivate::elapsedUSecs() const
+{
+    if (deviceState == QAudio::StoppedState)
+        return 0;
+
+    return timeStampOpened.elapsed()*1000;
+}
+
+QAudio::Error QAudioOutputPrivate::error() const
+{
+    return errorState;
+}
+
+QAudio::State QAudioOutputPrivate::state() const
+{
+    return deviceState;
+}
+
+void QAudioOutputPrivate::reset()
+{
+    close();
+}
+
+OutputPrivate::OutputPrivate(QAudioOutputPrivate* audio)
+{
+    audioDevice = qobject_cast<QAudioOutputPrivate*>(audio);
+}
+
+OutputPrivate::~OutputPrivate() {}
+
+qint64 OutputPrivate::readData( char* data, qint64 len)
+{
+    Q_UNUSED(data)
+    Q_UNUSED(len)
+
+    return 0;
+}
+
+qint64 OutputPrivate::writeData(const char* data, qint64 len)
+{
+    int retry = 0;
+    qint64 written = 0;
+
+    if((audioDevice->deviceState == QAudio::ActiveState)
+            ||(audioDevice->deviceState == QAudio::IdleState)) {
+        qint64 l = len;
+        while(written < l) {
+            int chunk = audioDevice->write(data+written,(l-written));
+            if(chunk <= 0)
+                retry++;
+            else
+                written+=chunk;
+
+            if(retry > 10)
+                return written;
+        }
+        audioDevice->deviceState = QAudio::ActiveState;
+    }
+    return written;
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qaudiooutput_win32_p.cpp"
diff --git a/src/multimediakit/audio/qaudiooutput_win32_p.h b/src/multimediakit/audio/qaudiooutput_win32_p.h
new file mode 100644
index 000000000..53cfe71f7
--- /dev/null
+++ b/src/multimediakit/audio/qaudiooutput_win32_p.h
@@ -0,0 +1,167 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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 QAUDIOOUTPUTWIN_H
+#define QAUDIOOUTPUTWIN_H
+
+#include <windows.h>
+#include <mmsystem.h>
+
+#include <QtCore/qdebug.h>
+#include <QtCore/qtimer.h>
+#include <QtCore/qstring.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qdatetime.h>
+#include <QtCore/qmutex.h>
+
+#include <qaudio.h>
+#include <qaudiodeviceinfo.h>
+#include <qaudiosystem.h>
+
+// For compat with 4.6
+#if !defined(QT_WIN_CALLBACK)
+#  if defined(Q_CC_MINGW)
+#    define QT_WIN_CALLBACK CALLBACK __attribute__ ((force_align_arg_pointer))
+#  else
+#    define QT_WIN_CALLBACK CALLBACK
+#  endif
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QAudioOutputPrivate : public QAbstractAudioOutput
+{
+    Q_OBJECT
+public:
+    QAudioOutputPrivate(const QByteArray &device);
+    ~QAudioOutputPrivate();
+
+    qint64 write( const char *data, qint64 len );
+
+    void setFormat(const QAudioFormat& fmt);
+    QAudioFormat format() const;
+    QIODevice* start();
+    void start(QIODevice* device);
+    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;
+
+    QIODevice* audioSource;
+    QAudioFormat settings;
+    QAudio::Error errorState;
+    QAudio::State deviceState;
+
+private slots:
+    void feedback();
+    bool deviceReady();
+
+private:
+    QByteArray m_device;
+    bool resuming;
+    int bytesAvailable;
+    QTime timeStamp;
+    qint64 elapsedTimeOffset;
+    QTime timeStampOpened;
+    qint32 buffer_size;
+    qint32 period_size;
+    qint64 totalTimeValue;
+    bool pullMode;
+    int intervalTime;
+    static void QT_WIN_CALLBACK waveOutProc( HWAVEOUT hWaveOut, UINT uMsg,
+            DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 );
+
+    QMutex mutex;
+
+    WAVEHDR* allocateBlocks(int size, int count);
+    void freeBlocks(WAVEHDR* blockArray);
+    bool open();
+    void close();
+
+    WAVEFORMATEX wfx;
+    HWAVEOUT hWaveOut;
+    MMRESULT result;
+    WAVEHDR header;
+    WAVEHDR* waveBlocks;
+    volatile bool finished;
+    volatile int waveFreeBlockCount;
+    int waveCurrentBlock;
+    char* audioBuffer;
+};
+
+class OutputPrivate : public QIODevice
+{
+    Q_OBJECT
+public:
+    OutputPrivate(QAudioOutputPrivate* audio);
+    ~OutputPrivate();
+
+    qint64 readData( char* data, qint64 len);
+    qint64 writeData(const char* data, qint64 len);
+
+private:
+    QAudioOutputPrivate *audioDevice;
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/multimediakit/audio/qaudiopluginloader.cpp b/src/multimediakit/audio/qaudiopluginloader.cpp
new file mode 100644
index 000000000..fc83f7a63
--- /dev/null
+++ b/src/multimediakit/audio/qaudiopluginloader.cpp
@@ -0,0 +1,180 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qaudiosystemplugin.h"
+#include "qaudiopluginloader_p.h"
+
+#include <QtCore/qcoreapplication.h>
+#include <QtGui/qapplication.h>
+#include <QtCore/qpluginloader.h>
+#include <QtCore/qfactoryinterface.h>
+#include <QtCore/qdir.h>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+QAudioPluginLoader::QAudioPluginLoader(const char *iid, const QString &location, Qt::CaseSensitivity):
+    m_iid(iid)
+{
+    m_location = location + "/";
+    load();
+}
+
+QAudioPluginLoader::~QAudioPluginLoader()
+{
+    for (int i = 0; i < m_plugins.count(); i++ ) {
+        delete m_plugins.at(i);
+    }
+}
+
+QStringList QAudioPluginLoader::pluginList() const
+{
+#if !defined QT_NO_DEBUG
+    const bool showDebug = qgetenv("QT_DEBUG_PLUGINS").toInt() > 0;
+#endif
+
+    QStringList paths = QApplication::libraryPaths();
+#ifdef QTM_PLUGIN_PATH
+    paths << QLatin1String(QTM_PLUGIN_PATH);
+#endif
+#if !defined QT_NO_DEBUG
+    if (showDebug)
+        qDebug() << "Plugin paths:" << paths;
+#endif
+
+    //temp variable to avoid multiple identic path
+    QSet<QString> processed;
+
+    /* Discover a bunch o plugins */
+    QStringList plugins;
+
+    /* Enumerate our plugin paths */
+    for (int i=0; i < paths.count(); i++) {
+        if (processed.contains(paths.at(i)))
+            continue;
+        processed.insert(paths.at(i));
+        QDir pluginsDir(paths.at(i)+m_location);
+        if (!pluginsDir.exists())
+            continue;
+
+        QStringList files = pluginsDir.entryList(QDir::Files);
+#if !defined QT_NO_DEBUG
+        if (showDebug)
+            qDebug()<<"Looking for plugins in "<<pluginsDir.path()<<files;
+#endif
+        for (int j=0; j < files.count(); j++) {
+            const QString &file = files.at(j);
+#if defined(Q_WS_MAEMO_5)
+            if (!file.contains(QLatin1String("n900audio")))
+#endif
+            plugins <<  pluginsDir.absoluteFilePath(file);
+        }
+    }
+    return  plugins;
+}
+
+QStringList QAudioPluginLoader::keys() const
+{
+    QMutexLocker locker(const_cast<QMutex *>(&m_mutex));
+
+    QStringList list;
+    for (int i = 0; i < m_plugins.count(); i++) {
+        QAudioSystemPlugin* p = qobject_cast<QAudioSystemPlugin*>(m_plugins.at(i)->instance());
+        if (p) list << p->keys();
+    }
+
+    return list;
+}
+
+QObject* QAudioPluginLoader::instance(QString const &key)
+{
+    QMutexLocker locker(&m_mutex);
+
+    for (int i = 0; i < m_plugins.count(); i++) {
+        QAudioSystemPlugin* p = qobject_cast<QAudioSystemPlugin*>(m_plugins.at(i)->instance());
+        if (p && p->keys().contains(key))
+            return m_plugins.at(i)->instance();
+    }
+    return 0;
+}
+
+QList<QObject*> QAudioPluginLoader::instances(QString const &key)
+{
+    QMutexLocker locker(&m_mutex);
+
+    QList<QObject*> list;
+    for (int i = 0; i < m_plugins.count(); i++) {
+        QAudioSystemPlugin* p = qobject_cast<QAudioSystemPlugin*>(m_plugins.at(i)->instance());
+        if (p && p->keys().contains(key))
+            list << m_plugins.at(i)->instance();
+    }
+    return list;
+}
+
+void QAudioPluginLoader::load()
+{
+    if (!m_plugins.isEmpty())
+        return;
+
+#if !defined QT_NO_DEBUG
+    const bool showDebug = qgetenv("QT_DEBUG_PLUGINS").toInt() > 0;
+#endif
+
+    QStringList plugins = pluginList();
+    for (int i=0; i < plugins.count(); i++) {
+        QPluginLoader* loader = new QPluginLoader(plugins.at(i));
+        QObject *o = loader->instance();
+        if (o != 0 && o->qt_metacast(m_iid) != 0) {
+            m_plugins.append(loader);
+        } else {
+#if !defined QT_NO_DEBUG
+            if (showDebug)
+                qWarning() << "QAudioPluginLoader: Failed to load plugin: "
+                           << plugins.at(i) << loader->errorString();
+#endif
+            delete o;
+            //we are not calling loader->unload here for it may cause problem on some device
+            delete loader;
+        }
+    }
+}
+QT_END_NAMESPACE
+
diff --git a/src/multimediakit/audio/qaudiopluginloader_p.h b/src/multimediakit/audio/qaudiopluginloader_p.h
new file mode 100644
index 000000000..6d5fef313
--- /dev/null
+++ b/src/multimediakit/audio/qaudiopluginloader_p.h
@@ -0,0 +1,92 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QAUDIOPLUGINLOADER_H
+#define QAUDIOPLUGINLOADER_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <qmobilityglobal.h>
+#include <QObject>
+#include <QtCore/qstring.h>
+#include <QtCore/qmap.h>
+#include <QtCore/qmutex.h>
+#include <QtCore/qpluginloader.h>
+
+
+QT_BEGIN_NAMESPACE
+
+class QAudioPluginLoader
+{
+public:
+    QAudioPluginLoader(const char *iid,
+                   const QString &suffix = QString(),
+                   Qt::CaseSensitivity = Qt::CaseSensitive);
+
+    ~QAudioPluginLoader();
+
+    QStringList keys() const;
+    QObject* instance(QString const &key);
+    QList<QObject*> instances(QString const &key);
+
+private:
+    QStringList pluginList() const;
+    void load();
+
+    QMutex m_mutex;
+
+    QByteArray  m_iid;
+    QString     m_location;
+    QList<QPluginLoader*> m_plugins;
+};
+
+QT_END_NAMESPACE
+
+#endif  // QAUDIOPLUGINLOADER_H
diff --git a/src/multimediakit/audio/qaudiosystem.cpp b/src/multimediakit/audio/qaudiosystem.cpp
new file mode 100644
index 000000000..5b2b0c3be
--- /dev/null
+++ b/src/multimediakit/audio/qaudiosystem.cpp
@@ -0,0 +1,423 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qaudiosystem.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QAbstractAudioDeviceInfo
+    \brief The QAbstractAudioDeviceInfo class is a base class for audio backends.
+
+    \ingroup multimedia
+    \inmodule QtMultimediaKit
+    \internal
+    \since 1.0
+
+    This class implements the audio functionality for
+    QAudioDeviceInfo, i.e., QAudioDeviceInfo keeps a
+    QAbstractAudioDeviceInfo and routes function calls to it. For a
+    description of the functionality that QAbstractAudioDeviceInfo
+    implements, you can read the class and functions documentation of
+    QAudioDeviceInfo.
+
+    \sa QAudioDeviceInfo
+    \sa QAbstractAudioOutput, QAbstractAudioInput
+*/
+
+/*!
+    \fn virtual QAudioFormat QAbstractAudioDeviceInfo::preferredFormat() const
+    Returns the recommended settings to use.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual bool QAbstractAudioDeviceInfo::isFormatSupported(const QAudioFormat& format) const
+    Returns true if \a format is available from audio device.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QString QAbstractAudioDeviceInfo::deviceName() const
+    Returns the audio device name.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QStringList QAbstractAudioDeviceInfo::supportedCodecs()
+    Returns the list of currently available codecs.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QList<int> QAbstractAudioDeviceInfo::supportedSampleRates()
+    Returns the list of currently available sample rates.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QList<int> QAbstractAudioDeviceInfo::supportedChannelCounts()
+    Returns the list of currently available channels.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QList<int> QAbstractAudioDeviceInfo::supportedSampleSizes()
+    Returns the list of currently available sample sizes.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QList<QAudioFormat::Endian> QAbstractAudioDeviceInfo::supportedByteOrders()
+    Returns the list of currently available byte orders.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QList<QAudioFormat::SampleType> QAbstractAudioDeviceInfo::supportedSampleTypes()
+    Returns the list of currently available sample types.
+    \since 1.0
+*/
+
+/*!
+    \class QAbstractAudioOutput
+    \brief The QAbstractAudioOutput class is a base class for audio backends.
+    \since 1.0
+
+    \ingroup multimedia
+    \inmodule QtMultimediaKit
+    \internal
+
+    QAbstractAudioOutput implements audio functionality for
+    QAudioOutput, i.e., QAudioOutput routes function calls to
+    QAbstractAudioOutput. For a description of the functionality that
+    is implemented, see the QAudioOutput class and function
+    descriptions.
+
+    \sa QAudioOutput
+*/
+
+/*!
+    \fn virtual void QAbstractAudioOutput::start(QIODevice* device)
+    Uses the \a device as the QIODevice to transfer data.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QIODevice* QAbstractAudioOutput::start()
+    Returns a pointer to the QIODevice being used to handle
+    the data transfer. This QIODevice can be used to write() audio data directly.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioOutput::stop()
+    Stops the audio output.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioOutput::reset()
+    Drops all audio data in the buffers, resets buffers to zero.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioOutput::suspend()
+    Stops processing audio data, preserving buffered audio data.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioOutput::resume()
+    Resumes processing audio data after a suspend()
+    \since 1.0
+*/
+
+/*!
+    \fn virtual int QAbstractAudioOutput::bytesFree() const
+    Returns the free space available in bytes in the audio buffer.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual int QAbstractAudioOutput::periodSize() const
+    Returns the period size in bytes.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioOutput::setBufferSize(int value)
+    Sets the audio buffer size to \a value in bytes.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual int QAbstractAudioOutput::bufferSize() const
+    Returns the audio buffer size in bytes.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioOutput::setNotifyInterval(int ms)
+    Sets the interval for notify() signal to be emitted. This is based on the \a ms
+    of audio data processed not on actual real-time. The resolution of the timer
+    is platform specific.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual int QAbstractAudioOutput::notifyInterval() const
+    Returns the notify interval in milliseconds.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual qint64 QAbstractAudioOutput::processedUSecs() const
+    Returns the amount of audio data processed since start() was called in milliseconds.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual qint64 QAbstractAudioOutput::elapsedUSecs() const
+    Returns the milliseconds since start() was called, including time in Idle and suspend states.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QAudio::Error QAbstractAudioOutput::error() const
+    Returns the error state.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QAudio::State QAbstractAudioOutput::state() const
+    Returns the state of audio processing.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioOutput::setFormat(const QAudioFormat& fmt)
+    Set the QAudioFormat to use to \a fmt.
+    Setting the format is only allowable while in QAudio::StoppedState.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QAudioFormat QAbstractAudioOutput::format() const
+    Returns the QAudioFormat being used.
+    \since 1.0
+*/
+
+/*!
+    \fn QAbstractAudioOutput::errorChanged(QAudio::Error error)
+    This signal is emitted when the \a error state has changed.
+    \since 1.0
+*/
+
+/*!
+    \fn QAbstractAudioOutput::stateChanged(QAudio::State state)
+    This signal is emitted when the device \a state has changed.
+    \since 1.0
+*/
+
+/*!
+    \fn QAbstractAudioOutput::notify()
+    This signal is emitted when x ms of audio data has been processed
+    the interval set by setNotifyInterval(x).
+    \since 1.0
+*/
+
+
+/*!
+    \class QAbstractAudioInput
+    \brief The QAbstractAudioInput class provides access for QAudioInput to access the audio
+    device provided by the plugin.
+    \since 1.0
+
+    \ingroup multimedia
+    \inmodule QtMultimediaKit
+    \internal
+
+    QAudioDeviceInput keeps an instance of QAbstractAudioInput and
+    routes calls to functions of the same name to QAbstractAudioInput.
+    This means that it is QAbstractAudioInput that implements the
+    audio functionality. For a description of the functionality, see
+    the QAudioInput class description.
+
+    \sa QAudioInput
+*/
+
+/*!
+    \fn virtual void QAbstractAudioInput::start(QIODevice* device)
+    Uses the \a device as the QIODevice to transfer data.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QIODevice* QAbstractAudioInput::start()
+    Returns a pointer to the QIODevice being used to handle
+    the data transfer. This QIODevice can be used to read() audio data directly.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioInput::stop()
+    Stops the audio input.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioInput::reset()
+    Drops all audio data in the buffers, resets buffers to zero.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioInput::suspend()
+    Stops processing audio data, preserving buffered audio data.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioInput::resume()
+    Resumes processing audio data after a suspend().
+    \since 1.0
+*/
+
+/*!
+    \fn virtual int QAbstractAudioInput::bytesReady() const
+    Returns the amount of audio data available to read in bytes.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual int QAbstractAudioInput::periodSize() const
+    Returns the period size in bytes.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioInput::setBufferSize(int value)
+    Sets the audio buffer size to \a value in milliseconds.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual int QAbstractAudioInput::bufferSize() const
+    Returns the audio buffer size in milliseconds.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioInput::setNotifyInterval(int ms)
+    Sets the interval for notify() signal to be emitted. This is based
+    on the \a ms of audio data processed not on actual real-time.
+    The resolution of the timer is platform specific.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual int QAbstractAudioInput::notifyInterval() const
+    Returns the notify interval in milliseconds.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual qint64 QAbstractAudioInput::processedUSecs() const
+    Returns the amount of audio data processed since start() was called in milliseconds.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual qint64 QAbstractAudioInput::elapsedUSecs() const
+    Returns the milliseconds since start() was called, including time in Idle and suspend states.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QAudio::Error QAbstractAudioInput::error() const
+    Returns the error state.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QAudio::State QAbstractAudioInput::state() const
+    Returns the state of audio processing.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual void QAbstractAudioInput::setFormat(const QAudioFormat& fmt)
+    Set the QAudioFormat to use to \a fmt.
+    Setting the format is only allowable while in QAudio::StoppedState.
+    \since 1.0
+*/
+
+/*!
+    \fn virtual QAudioFormat QAbstractAudioInput::format() const
+    Returns the QAudioFormat being used
+    \since 1.0
+*/
+
+/*!
+    \fn QAbstractAudioInput::errorChanged(QAudio::Error error)
+    This signal is emitted when the \a error state has changed.
+    \since 1.0
+*/
+
+/*!
+    \fn QAbstractAudioInput::stateChanged(QAudio::State state)
+    This signal is emitted when the device \a state has changed.
+    \since 1.0
+*/
+
+/*!
+    \fn QAbstractAudioInput::notify()
+    This signal is emitted when x ms of audio data has been processed
+    the interval set by setNotifyInterval(x).
+    \since 1.0
+*/
+
+
+QT_END_NAMESPACE
+
+#include "moc_qaudiosystem.cpp"
diff --git a/src/multimediakit/audio/qaudiosystem.h b/src/multimediakit/audio/qaudiosystem.h
new file mode 100644
index 000000000..f2875a5cd
--- /dev/null
+++ b/src/multimediakit/audio/qaudiosystem.h
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QAUDIOSYSTEM_H
+#define QAUDIOSYSTEM_H
+
+#include <qmobilityglobal.h>
+#include <qtmedianamespace.h>
+
+#include "qaudio.h"
+#include "qaudioformat.h"
+#include "qaudiodeviceinfo.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class Q_MULTIMEDIA_EXPORT QAbstractAudioDeviceInfo : public QObject
+{
+    Q_OBJECT
+
+public:
+    virtual QAudioFormat preferredFormat() const = 0;
+    virtual bool isFormatSupported(const QAudioFormat &format) const = 0;
+    virtual QString deviceName() const = 0;
+    virtual QStringList supportedCodecs() = 0;
+    virtual QList<int> supportedSampleRates() = 0;
+    virtual QList<int> supportedChannelCounts() = 0;
+    virtual QList<int> supportedSampleSizes() = 0;
+    virtual QList<QAudioFormat::Endian> supportedByteOrders() = 0;
+    virtual QList<QAudioFormat::SampleType> supportedSampleTypes() = 0;
+};
+
+class Q_MULTIMEDIA_EXPORT QAbstractAudioOutput : public QObject
+{
+    Q_OBJECT
+
+public:
+    virtual void start(QIODevice *device) = 0;
+    virtual QIODevice* start() = 0;
+    virtual void stop() = 0;
+    virtual void reset() = 0;
+    virtual void suspend() = 0;
+    virtual void resume() = 0;
+    virtual int bytesFree() const = 0;
+    virtual int periodSize() const = 0;
+    virtual void setBufferSize(int value) = 0;
+    virtual int bufferSize() const = 0;
+    virtual void setNotifyInterval(int milliSeconds) = 0;
+    virtual int notifyInterval() const = 0;
+    virtual qint64 processedUSecs() const = 0;
+    virtual qint64 elapsedUSecs() const = 0;
+    virtual QAudio::Error error() const = 0;
+    virtual QAudio::State state() const = 0;
+    virtual void setFormat(const QAudioFormat& fmt) = 0;
+    virtual QAudioFormat format() const = 0;
+
+Q_SIGNALS:
+    void errorChanged(QAudio::Error);
+    void stateChanged(QAudio::State);
+    void notify();
+};
+
+class Q_MULTIMEDIA_EXPORT QAbstractAudioInput : public QObject
+{
+    Q_OBJECT
+
+public:
+    virtual void start(QIODevice *device) = 0;
+    virtual QIODevice* start() = 0;
+    virtual void stop() = 0;
+    virtual void reset() = 0;
+    virtual void suspend()  = 0;
+    virtual void resume() = 0;
+    virtual int bytesReady() const = 0;
+    virtual int periodSize() const = 0;
+    virtual void setBufferSize(int value) = 0;
+    virtual int bufferSize() const = 0;
+    virtual void setNotifyInterval(int milliSeconds) = 0;
+    virtual int notifyInterval() const = 0;
+    virtual qint64 processedUSecs() const = 0;
+    virtual qint64 elapsedUSecs() const = 0;
+    virtual QAudio::Error error() const = 0;
+    virtual QAudio::State state() const = 0;
+    virtual void setFormat(const QAudioFormat& fmt) = 0;
+    virtual QAudioFormat format() const = 0;
+
+Q_SIGNALS:
+    void errorChanged(QAudio::Error);
+    void stateChanged(QAudio::State);
+    void notify();
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QAUDIOSYSTEM_H
diff --git a/src/multimediakit/audio/qaudiosystemplugin.cpp b/src/multimediakit/audio/qaudiosystemplugin.cpp
new file mode 100644
index 000000000..3744b6f88
--- /dev/null
+++ b/src/multimediakit/audio/qaudiosystemplugin.cpp
@@ -0,0 +1,143 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include "qaudiosystemplugin.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QAudioSystemPlugin
+    \brief The QAudioSystemPlugin class provides an abstract base for audio plugins.
+    \since 1.0
+
+    \ingroup multimedia
+    \inmodule QtMultimediaKit
+    \internal
+
+    Writing a audio plugin is achieved by subclassing this base class,
+    reimplementing the pure virtual functions keys(), availableDevices(),
+    createInput(), createOutput() and createDeviceInfo() then exporting
+    the class with the Q_EXPORT_PLUGIN2() macro.
+
+    Unit tests are available to help in debugging new plugins.
+
+    \sa QAbstractAudioDeviceInfo, QAbstractAudioOutput, QAbstractAudioInput
+
+    Qt supports win32, linux(alsa) and Mac OS X standard (builtin to the
+    QtMultimediaKit library at compile time).
+
+    You can support other backends other than these predefined ones by
+    creating a plugin subclassing QAudioSystemPlugin, QAbstractAudioDeviceInfo,
+    QAbstractAudioOutput and QAbstractAudioInput.
+
+    Add "default" to your list of keys() available to override the default
+    audio device to be provided by your plugin.
+
+    -audio-backend configure option will force compiling in of the builtin backend
+    into the QtMultimediaKit library at compile time. This is automatic by default
+    and will only be compiled into the library if the dependencies are installed.
+    eg. alsa-devel package installed for linux.
+
+    If the builtin backend is not compiled into the QtMultimediaKit library and
+    no audio plugins are available a fallback dummy backend will be used.
+    This should print out warnings if this is the case when you try and use QAudioInput or QAudioOutput. To fix this problem
+    reconfigure Qt using -audio-backend or create your own plugin with a default
+    key to always override the dummy fallback. The easiest way to determine
+    if you have only a dummy backend is to get a list of available audio devices.
+
+    QAudioDeviceInfo::availableDevices(QAudio::AudioOutput).size() = 0 (dummy backend)
+*/
+
+/*!
+    Construct a new audio plugin with \a parent.
+    This is invoked automatically by the Q_EXPORT_PLUGIN2() macro.
+*/
+
+QAudioSystemPlugin::QAudioSystemPlugin(QObject* parent) :
+    QObject(parent)
+{}
+
+/*!
+   Destroy the audio plugin
+
+   You never have to call this explicitly. Qt destroys a plugin automatically when it is no longer used.
+*/
+
+QAudioSystemPlugin::~QAudioSystemPlugin()
+{}
+
+/*!
+    \fn QStringList QAudioSystemPlugin::keys() const
+    Returns the list of device identifiers this plugin supports.
+    \since 1.0
+*/
+
+/*!
+    \fn QList<QByteArray> QAudioSystemPlugin::availableDevices(QAudio::Mode mode) const
+    Returns a list of available audio devices for \a mode
+    \since 1.0
+*/
+
+/*!
+    \fn QAbstractAudioInput* QAudioSystemPlugin::createInput(const QByteArray& device)
+    Returns a pointer to a QAbstractAudioInput created using \a device identifier
+    \since 1.0
+*/
+
+/*!
+    \fn QAbstractAudioOutput* QAudioSystemPlugin::createOutput(const QByteArray& device)
+    Returns a pointer to a QAbstractAudioOutput created using \a device identifier
+
+    \since 1.0
+*/
+
+/*!
+    \fn QAbstractAudioDeviceInfo* QAudioSystemPlugin::createDeviceInfo(const QByteArray& device, QAudio::Mode mode)
+    Returns a pointer to a QAbstractAudioDeviceInfo created using \a device and \a mode
+
+    \since 1.0
+*/
+
+
+QT_END_NAMESPACE
+
+#include "moc_qaudiosystemplugin.cpp"
diff --git a/src/multimediakit/audio/qaudiosystemplugin.h b/src/multimediakit/audio/qaudiosystemplugin.h
new file mode 100644
index 000000000..740e1e427
--- /dev/null
+++ b/src/multimediakit/audio/qaudiosystemplugin.h
@@ -0,0 +1,93 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QAUDIOSYSTEMPLUGIN_H
+#define QAUDIOSYSTEMPLUGIN_H
+
+#include <QtCore/qstring.h>
+#include <QtCore/qplugin.h>
+#include <QtCore/qfactoryinterface.h>
+
+#include <qmobilityglobal.h>
+#include <qtmedianamespace.h>
+
+#include "qaudioformat.h"
+#include "qaudiodeviceinfo.h"
+#include "qaudiosystem.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+struct Q_MULTIMEDIA_EXPORT QAudioSystemFactoryInterface : public QFactoryInterface
+{
+    virtual QList<QByteArray> availableDevices(QAudio::Mode) const = 0;
+    virtual QAbstractAudioInput* createInput(const QByteArray& device) = 0;
+    virtual QAbstractAudioOutput* createOutput(const QByteArray& device) = 0;
+    virtual QAbstractAudioDeviceInfo* createDeviceInfo(const QByteArray& device, QAudio::Mode mode) = 0;
+};
+
+#define QAudioSystemFactoryInterface_iid \
+    "com.nokia.qt.QAudioSystemFactoryInterface"
+Q_DECLARE_INTERFACE(QAudioSystemFactoryInterface, QAudioSystemFactoryInterface_iid)
+
+class Q_MULTIMEDIA_EXPORT QAudioSystemPlugin : public QObject, public QAudioSystemFactoryInterface
+{
+    Q_OBJECT
+    Q_INTERFACES(QAudioSystemFactoryInterface:QFactoryInterface)
+
+public:
+    QAudioSystemPlugin(QObject *parent = 0);
+    ~QAudioSystemPlugin();
+
+    virtual QStringList keys() const = 0;
+    virtual QList<QByteArray> availableDevices(QAudio::Mode) const = 0;
+    virtual QAbstractAudioInput* createInput(const QByteArray& device) = 0;
+    virtual QAbstractAudioOutput* createOutput(const QByteArray& device) = 0;
+    virtual QAbstractAudioDeviceInfo* createDeviceInfo(const QByteArray& device, QAudio::Mode mode) = 0;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QAUDIOSYSTEMPLUGIN_H