Move Windows audio code over into Qt Multimedia

Change-Id: Ib4f652b49a2d0805a5a44e9f2114b24ab366cdb5
Reviewed-by: Doris Verria <doris.verria@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

12 files changed, 0 insertions, 2692 deletions

diff --git a/src/plugins/windowsaudio/qwindowsaudiodeviceinfo.cpp b/src/plugins/windowsaudio/qwindowsaudiodeviceinfo.cpp
deleted file mode 100644
index 72d142da9..000000000
--- a/src/plugins/windowsaudio/qwindowsaudiodeviceinfo.cpp
+++ /dev/null
@@ -1,469 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of other Qt classes.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// INTERNAL USE ONLY: Do NOT use for any other purpose.
-//
-
-
-#include <QtCore/qt_windows.h>
-#include <QtCore/QDataStream>
-#include <QtCore/QIODevice>
-#include <mmsystem.h>
-#include "qwindowsaudiodeviceinfo.h"
-#include "qwindowsaudioutils.h"
-
-#if defined(Q_CC_MINGW) && !defined(__MINGW64_VERSION_MAJOR)
-struct IBaseFilter; // Needed for strmif.h from stock MinGW.
-struct _DDPIXELFORMAT;
-typedef struct _DDPIXELFORMAT* LPDDPIXELFORMAT;
-#endif
-
-#include <strmif.h>
-#if !defined(Q_CC_MINGW) || defined(__MINGW64_VERSION_MAJOR)
-#  include <uuids.h>
-#else
-
-extern GUID CLSID_AudioInputDeviceCategory;
-extern GUID CLSID_AudioRendererCategory;
-extern GUID IID_ICreateDevEnum;
-extern GUID CLSID_SystemDeviceEnum;
-
-#ifndef __ICreateDevEnum_INTERFACE_DEFINED__
-#define __ICreateDevEnum_INTERFACE_DEFINED__
-
-DECLARE_INTERFACE_(ICreateDevEnum, IUnknown)
-{
-    STDMETHOD(CreateClassEnumerator)(REFCLSID clsidDeviceClass,
-                                     IEnumMoniker **ppEnumMoniker,
-                                     DWORD dwFlags) PURE;
-};
-
-#endif //  __ICreateDevEnum_INTERFACE_DEFINED__
-
-#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 // defined(Q_CC_MINGW) && !defined(__MINGW64_VERSION_MAJOR)
-
-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
-
-
-QWindowsAudioDeviceInfo::QWindowsAudioDeviceInfo(QByteArray dev, QAudio::Mode mode)
-{
-    QDataStream ds(&dev, QIODevice::ReadOnly);
-    ds >> devId >> device;
-    this->mode = mode;
-
-    updateLists();
-}
-
-QWindowsAudioDeviceInfo::~QWindowsAudioDeviceInfo()
-{
-    close();
-}
-
-bool QWindowsAudioDeviceInfo::isFormatSupported(const QAudioFormat& format) const
-{
-    return testSettings(format);
-}
-
-QAudioFormat QWindowsAudioDeviceInfo::preferredFormat() const
-{
-    QAudioFormat nearest;
-    if (mode == QAudio::AudioOutput) {
-        nearest.setSampleRate(44100);
-        nearest.setChannelCount(2);
-        nearest.setByteOrder(QAudioFormat::LittleEndian);
-        nearest.setSampleType(QAudioFormat::SignedInt);
-        nearest.setSampleSize(16);
-        nearest.setCodec(QLatin1String("audio/pcm"));
-    } else {
-        nearest.setSampleRate(11025);
-        nearest.setChannelCount(1);
-        nearest.setByteOrder(QAudioFormat::LittleEndian);
-        nearest.setSampleType(QAudioFormat::SignedInt);
-        nearest.setSampleSize(8);
-        nearest.setCodec(QLatin1String("audio/pcm"));
-    }
-    return nearest;
-}
-
-QString QWindowsAudioDeviceInfo::deviceName() const
-{
-    return device;
-}
-
-QStringList QWindowsAudioDeviceInfo::supportedCodecs()
-{
-    return QStringList() << QStringLiteral("audio/pcm");
-}
-
-QList<int> QWindowsAudioDeviceInfo::supportedSampleRates()
-{
-    updateLists();
-    return sampleRatez;
-}
-
-QList<int> QWindowsAudioDeviceInfo::supportedChannelCounts()
-{
-    updateLists();
-    return channelz;
-}
-
-QList<int> QWindowsAudioDeviceInfo::supportedSampleSizes()
-{
-    updateLists();
-    return sizez;
-}
-
-QList<QAudioFormat::Endian> QWindowsAudioDeviceInfo::supportedByteOrders()
-{
-    return QList<QAudioFormat::Endian>() << QAudioFormat::LittleEndian;
-}
-
-QList<QAudioFormat::SampleType> QWindowsAudioDeviceInfo::supportedSampleTypes()
-{
-    updateLists();
-    return typez;
-}
-
-
-bool QWindowsAudioDeviceInfo::open()
-{
-    return true;
-}
-
-void QWindowsAudioDeviceInfo::close()
-{
-}
-
-bool QWindowsAudioDeviceInfo::testSettings(const QAudioFormat& format) const
-{
-    WAVEFORMATEXTENSIBLE wfx;
-    if (qt_convertFormat(format, &wfx)) {
-        // query only, do not open device
-        if (mode == QAudio::AudioOutput) {
-            return (waveOutOpen(NULL, UINT_PTR(devId), &wfx.Format, 0, 0,
-                                WAVE_FORMAT_QUERY) == MMSYSERR_NOERROR);
-        } else { // AudioInput
-            return (waveInOpen(NULL, UINT_PTR(devId), &wfx.Format, 0, 0,
-                                WAVE_FORMAT_QUERY) == MMSYSERR_NOERROR);
-        }
-    }
-
-    return false;
-}
-
-void QWindowsAudioDeviceInfo::updateLists()
-{
-    if (!sizez.isEmpty())
-        return;
-
-    DWORD fmt = 0;
-
-    if(mode == QAudio::AudioOutput) {
-        WAVEOUTCAPS woc;
-        if (waveOutGetDevCaps(devId, &woc, sizeof(WAVEOUTCAPS)) == MMSYSERR_NOERROR)
-            fmt = woc.dwFormats;
-    } else {
-        WAVEINCAPS woc;
-        if (waveInGetDevCaps(devId, &woc, sizeof(WAVEINCAPS)) == MMSYSERR_NOERROR)
-            fmt = woc.dwFormats;
-    }
-
-    sizez.clear();
-    sampleRatez.clear();
-    channelz.clear();
-    typez.clear();
-
-    if (fmt) {
-        // Check sample size
-        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)
-            || (fmt & WAVE_FORMAT_48M08)
-            || (fmt & WAVE_FORMAT_48S08)
-            || (fmt & WAVE_FORMAT_96M08)
-            || (fmt & WAVE_FORMAT_96S08)) {
-            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)
-            || (fmt & WAVE_FORMAT_48M16)
-            || (fmt & WAVE_FORMAT_48S16)
-            || (fmt & WAVE_FORMAT_96M16)
-            || (fmt & WAVE_FORMAT_96S16)) {
-            sizez.append(16);
-        }
-
-        // Check sample rate
-        if ((fmt & WAVE_FORMAT_1M08)
-           || (fmt & WAVE_FORMAT_1S08)
-           || (fmt & WAVE_FORMAT_1M16)
-           || (fmt & WAVE_FORMAT_1S16)) {
-            sampleRatez.append(11025);
-        }
-        if ((fmt & WAVE_FORMAT_2M08)
-           || (fmt & WAVE_FORMAT_2S08)
-           || (fmt & WAVE_FORMAT_2M16)
-           || (fmt & WAVE_FORMAT_2S16)) {
-            sampleRatez.append(22050);
-        }
-        if ((fmt & WAVE_FORMAT_4M08)
-           || (fmt & WAVE_FORMAT_4S08)
-           || (fmt & WAVE_FORMAT_4M16)
-           || (fmt & WAVE_FORMAT_4S16)) {
-            sampleRatez.append(44100);
-        }
-        if ((fmt & WAVE_FORMAT_48M08)
-            || (fmt & WAVE_FORMAT_48S08)
-            || (fmt & WAVE_FORMAT_48M16)
-            || (fmt & WAVE_FORMAT_48S16)) {
-            sampleRatez.append(48000);
-        }
-        if ((fmt & WAVE_FORMAT_96M08)
-           || (fmt & WAVE_FORMAT_96S08)
-           || (fmt & WAVE_FORMAT_96M16)
-           || (fmt & WAVE_FORMAT_96S16)) {
-            sampleRatez.append(96000);
-        }
-
-        // Check channel count
-        if (fmt & WAVE_FORMAT_1M08
-                || fmt & WAVE_FORMAT_1M16
-                || fmt & WAVE_FORMAT_2M08
-                || fmt & WAVE_FORMAT_2M16
-                || fmt & WAVE_FORMAT_4M08
-                || fmt & WAVE_FORMAT_4M16
-                || fmt & WAVE_FORMAT_48M08
-                || fmt & WAVE_FORMAT_48M16
-                || fmt & WAVE_FORMAT_96M08
-                || fmt & WAVE_FORMAT_96M16) {
-            channelz.append(1);
-        }
-        if (fmt & WAVE_FORMAT_1S08
-                || fmt & WAVE_FORMAT_1S16
-                || fmt & WAVE_FORMAT_2S08
-                || fmt & WAVE_FORMAT_2S16
-                || fmt & WAVE_FORMAT_4S08
-                || fmt & WAVE_FORMAT_4S16
-                || fmt & WAVE_FORMAT_48S08
-                || fmt & WAVE_FORMAT_48S16
-                || fmt & WAVE_FORMAT_96S08
-                || fmt & WAVE_FORMAT_96S16) {
-            channelz.append(2);
-        }
-
-        typez.append(QAudioFormat::SignedInt);
-        typez.append(QAudioFormat::UnSignedInt);
-
-        // WAVEOUTCAPS and WAVEINCAPS contains information only for the previously tested parameters.
-        // WaveOut and WaveInt might actually support more formats, the only way to know is to try
-        // opening the device with it.
-        QAudioFormat testFormat;
-        testFormat.setCodec(QStringLiteral("audio/pcm"));
-        testFormat.setByteOrder(QAudioFormat::LittleEndian);
-        testFormat.setSampleType(QAudioFormat::SignedInt);
-        testFormat.setChannelCount(channelz.first());
-        testFormat.setSampleRate(sampleRatez.at(sampleRatez.size() / 2));
-        testFormat.setSampleSize(sizez.last());
-        const QAudioFormat defaultTestFormat(testFormat);
-
-        // Check if float samples are supported
-        testFormat.setSampleType(QAudioFormat::Float);
-        testFormat.setSampleSize(32);
-        if (testSettings(testFormat))
-            typez.append(QAudioFormat::Float);
-
-        // Check channel counts > 2
-        testFormat = defaultTestFormat;
-        for (int i = 3; i < 19; ++i) { // <mmreg.h> defines 18 different channels
-            testFormat.setChannelCount(i);
-            if (testSettings(testFormat))
-                channelz.append(i);
-        }
-
-        // Check more sample sizes
-        testFormat = defaultTestFormat;
-        const QList<int> testSampleSizes = QList<int>() << 24 << 32 << 48 << 64;
-        for (int s : testSampleSizes) {
-            testFormat.setSampleSize(s);
-            if (testSettings(testFormat))
-                sizez.append(s);
-        }
-
-        // Check more sample rates
-        testFormat = defaultTestFormat;
-        const QList<int> testSampleRates = QList<int>() << 8000 << 16000 << 32000 << 88200 << 192000;
-        for (int r : testSampleRates) {
-            testFormat.setSampleRate(r);
-            if (testSettings(testFormat))
-                sampleRatez.append(r);
-        }
-        std::sort(sampleRatez.begin(), sampleRatez.end());
-    }
-}
-
-QList<QByteArray> QWindowsAudioDeviceInfo::availableDevices(QAudio::Mode mode)
-{
-    Q_UNUSED(mode);
-
-    QList<QByteArray> devices;
-    //enumerate device fullnames through directshow api
-    auto hrCoInit = CoInitialize(nullptr);
-    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();
-            }
-            pEnum->Release();
-        }
-        pDevEnum->Release();
-    }
-    if (SUCCEEDED(hrCoInit))
-        CoUninitialize();
-
-    return devices;
-}
-
-QByteArray QWindowsAudioDeviceInfo::defaultDevice(QAudio::Mode mode)
-{
-    const QString &name = (mode == QAudio::AudioOutput) ? QStringLiteral("Default Output Device")
-                                                        : QStringLiteral("Default Input Device");
-    QByteArray defaultDevice;
-    QDataStream ds(&defaultDevice, QIODevice::WriteOnly);
-    ds << quint32(WAVE_MAPPER) // device ID for default device
-       << name;
-
-    return defaultDevice;
-}
-
-QT_END_NAMESPACE
diff --git a/src/plugins/windowsaudio/qwindowsaudiodeviceinfo.h b/src/plugins/windowsaudio/qwindowsaudiodeviceinfo.h
deleted file mode 100644
index d84eb8acf..000000000
--- a/src/plugins/windowsaudio/qwindowsaudiodeviceinfo.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of other Qt classes.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-
-#ifndef QWINDOWSAUDIODEVICEINFO_H
-#define QWINDOWSAUDIODEVICEINFO_H
-
-#include <QtCore/qbytearray.h>
-#include <QtCore/qstringlist.h>
-#include <QtCore/qlist.h>
-#include <QtCore/qdebug.h>
-
-#include <QtMultimedia/qaudiodeviceinfo.h>
-#include <QtMultimedia/qaudiosystem.h>
-
-
-QT_BEGIN_NAMESPACE
-
-const unsigned int MAX_SAMPLE_RATES = 5;
-const unsigned int SAMPLE_RATES[] = { 8000, 11025, 22050, 44100, 48000 };
-
-class QWindowsAudioDeviceInfo : public QAbstractAudioDeviceInfo
-{
-    Q_OBJECT
-
-public:
-    QWindowsAudioDeviceInfo(QByteArray dev,QAudio::Mode mode);
-    ~QWindowsAudioDeviceInfo();
-
-    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 defaultDevice(QAudio::Mode mode);
-    static QList<QByteArray> availableDevices(QAudio::Mode);
-
-private:
-    QAudio::Mode mode;
-    QString device;
-    quint32 devId;
-    QList<int> sampleRatez;
-    QList<int> channelz;
-    QList<int> sizez;
-    QList<QAudioFormat::SampleType> typez;
-};
-
-
-
-QT_END_NAMESPACE
-
-
-#endif // QWINDOWSAUDIODEVICEINFO_H
diff --git a/src/plugins/windowsaudio/qwindowsaudioinput.cpp b/src/plugins/windowsaudio/qwindowsaudioinput.cpp
deleted file mode 100644
index addabbd32..000000000
--- a/src/plugins/windowsaudio/qwindowsaudioinput.cpp
+++ /dev/null
@@ -1,732 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of other Qt classes.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// INTERNAL USE ONLY: Do NOT use for any other purpose.
-//
-
-
-#include "qwindowsaudioinput.h"
-
-#include <QtCore/QDataStream>
-#include <QtCore/qtimer.h>
-
-QT_BEGIN_NAMESPACE
-
-//#define DEBUG_AUDIO 1
-
-QWindowsAudioInput::QWindowsAudioInput(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;
-
-    mixerID = 0;
-    cachedVolume = -1.0f;
-    memset(&mixerLineControls, 0, sizeof(mixerLineControls));
-}
-
-QWindowsAudioInput::~QWindowsAudioInput()
-{
-    stop();
-}
-
-void QT_WIN_CALLBACK QWindowsAudioInput::waveInProc( HWAVEIN hWaveIn, UINT uMsg,
-        DWORD_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2 )
-{
-    Q_UNUSED(dwParam1);
-    Q_UNUSED(dwParam2);
-    Q_UNUSED(hWaveIn);
-
-    QWindowsAudioInput* qAudio;
-    qAudio = (QWindowsAudioInput*)(dwInstance);
-    if(!qAudio)
-        return;
-
-    QMutexLocker locker(&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* QWindowsAudioInput::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 QWindowsAudioInput::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 QWindowsAudioInput::error() const
-{
-    return errorState;
-}
-
-QAudio::State QWindowsAudioInput::state() const
-{
-    return deviceState;
-}
-
-#ifndef  DRVM_MAPPER_CONSOLEVOICECOM_GET
-    #ifndef DRVM_MAPPER
-    #define DRVM_MAPPER                     0x2000
-    #endif
-    #ifndef DRVM_MAPPER_STATUS
-    #define DRVM_MAPPER_STATUS      (DRVM_MAPPER+0)
-    #endif
-    #define DRVM_USER                       0x4000
-    #define DRVM_MAPPER_RECONFIGURE         (DRVM_MAPPER+1)
-    #define DRVM_MAPPER_PREFERRED_GET       (DRVM_MAPPER+21)
-    #define DRVM_MAPPER_CONSOLEVOICECOM_GET (DRVM_MAPPER+23)
-#endif
-
-void QWindowsAudioInput::setVolume(qreal volume)
-{
-    cachedVolume = volume;
-    for (DWORD i = 0; i < mixerLineControls.cControls; i++) {
-
-        MIXERCONTROLDETAILS controlDetails;
-        controlDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
-        controlDetails.dwControlID = mixerLineControls.pamxctrl[i].dwControlID;
-        controlDetails.cChannels = 1;
-
-        if ((mixerLineControls.pamxctrl[i].dwControlType == MIXERCONTROL_CONTROLTYPE_FADER) ||
-            (mixerLineControls.pamxctrl[i].dwControlType == MIXERCONTROL_CONTROLTYPE_VOLUME)) {
-            MIXERCONTROLDETAILS_UNSIGNED controlDetailsUnsigned;
-            controlDetailsUnsigned.dwValue = qBound(DWORD(0), DWORD(65535.0 * volume + 0.5), DWORD(65535));
-            controlDetails.cMultipleItems = 0;
-            controlDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
-            controlDetails.paDetails = &controlDetailsUnsigned;
-            mixerSetControlDetails(mixerID, &controlDetails, MIXER_SETCONTROLDETAILSF_VALUE);
-        }
-    }
-}
-
-qreal QWindowsAudioInput::volume() const
-{
-    for (DWORD i = 0; i < mixerLineControls.cControls; i++) {
-        if ((mixerLineControls.pamxctrl[i].dwControlType != MIXERCONTROL_CONTROLTYPE_FADER) &&
-            (mixerLineControls.pamxctrl[i].dwControlType != MIXERCONTROL_CONTROLTYPE_VOLUME)) {
-            continue;
-        }
-
-        MIXERCONTROLDETAILS controlDetails;
-        controlDetails.cbStruct = sizeof(controlDetails);
-        controlDetails.dwControlID = mixerLineControls.pamxctrl[i].dwControlID;
-        controlDetails.cChannels = 1;
-        controlDetails.cMultipleItems = 0;
-        controlDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
-        MIXERCONTROLDETAILS_UNSIGNED detailsUnsigned;
-        controlDetails.paDetails = &detailsUnsigned;
-        memset(controlDetails.paDetails, 0, controlDetails.cbDetails);
-
-        MMRESULT result = mixerGetControlDetails(mixerID, &controlDetails, MIXER_GETCONTROLDETAILSF_VALUE);
-        if (result != MMSYSERR_NOERROR)
-            continue;
-        if (controlDetails.cbDetails < sizeof(MIXERCONTROLDETAILS_UNSIGNED))
-            continue;
-        return detailsUnsigned.dwValue / 65535.0;
-    }
-
-    return qFuzzyCompare(cachedVolume, qreal(-1.0f)) ? 1.0f : cachedVolume;
-}
-
-void QWindowsAudioInput::setFormat(const QAudioFormat& fmt)
-{
-    if (deviceState == QAudio::StoppedState)
-        settings = fmt;
-}
-
-QAudioFormat QWindowsAudioInput::format() const
-{
-    return settings;
-}
-
-void QWindowsAudioInput::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* QWindowsAudioInput::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 QWindowsAudioInput::stop()
-{
-    if(deviceState == QAudio::StoppedState)
-        return;
-
-    close();
-    emit stateChanged(deviceState);
-}
-
-bool QWindowsAudioInput::open()
-{
-#ifdef DEBUG_AUDIO
-    QTime now(QTime::currentTime());
-    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
-#endif
-    header = 0;
-
-    period_size = 0;
-
-    if (!qt_convertFormat(settings, &wfx)) {
-        qWarning("QAudioInput: open error, invalid format.");
-    } else if (buffer_size == 0) {
-        buffer_size
-                = (settings.sampleRate()
-                * 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;
-    }
-
-    timeStamp.restart();
-    elapsedTimeOffset = 0;
-
-    QDataStream ds(&m_device, QIODevice::ReadOnly);
-    quint32 deviceId;
-    ds >> deviceId;
-
-    if (waveInOpen(&hWaveIn, UINT_PTR(deviceId), &wfx.Format,
-                (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;
-    initMixer();
-    return true;
-}
-
-void QWindowsAudioInput::close()
-{
-    if(deviceState == QAudio::StoppedState)
-        return;
-
-    deviceState = QAudio::StoppedState;
-    waveInReset(hWaveIn);
-
-    mutex.lock();
-    for (int i=0; i<waveFreeBlockCount; i++)
-        waveInUnprepareHeader(hWaveIn,&waveBlocks[i],sizeof(WAVEHDR));
-    freeBlocks(waveBlocks);
-    mutex.unlock();
-
-    waveInClose(hWaveIn);
-    closeMixer();
-
-    int count = 0;
-    while(!finished && count < 500) {
-        count++;
-        Sleep(10);
-    }
-}
-
-void QWindowsAudioInput::initMixer()
-{
-    // Get the Mixer ID from the Sound Device ID
-    UINT mixerIntID = 0;
-    if (mixerGetID(reinterpret_cast<HMIXEROBJ>(hWaveIn),
-        &mixerIntID, MIXER_OBJECTF_HWAVEIN) != MMSYSERR_NOERROR)
-        return;
-    mixerID = reinterpret_cast<HMIXEROBJ>(quintptr(mixerIntID));
-
-    // Get the Destination (Recording) Line Information
-    MIXERLINE mixerLine;
-    mixerLine.cbStruct = sizeof(MIXERLINE);
-    mixerLine.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_WAVEIN;
-    if (mixerGetLineInfo(mixerID, &mixerLine, MIXER_GETLINEINFOF_COMPONENTTYPE) != MMSYSERR_NOERROR)
-        return;
-
-    // Set all the Destination (Recording) Line Controls
-    if (mixerLine.cControls > 0) {
-        mixerLineControls.cbStruct = sizeof(MIXERLINECONTROLS);
-        mixerLineControls.dwLineID = mixerLine.dwLineID;
-        mixerLineControls.cControls = mixerLine.cControls;
-        mixerLineControls.cbmxctrl = sizeof(MIXERCONTROL);
-        mixerLineControls.pamxctrl = new MIXERCONTROL[mixerLineControls.cControls];
-        if (mixerGetLineControls(mixerID, &mixerLineControls, MIXER_GETLINECONTROLSF_ALL) != MMSYSERR_NOERROR)
-            closeMixer();
-        else if (!qFuzzyCompare(cachedVolume, qreal(-1.0f)))
-            setVolume(cachedVolume);
-    }
-}
-
-void QWindowsAudioInput::closeMixer()
-{
-    delete[] mixerLineControls.pamxctrl;
-    memset(&mixerLineControls, 0, sizeof(mixerLineControls));
-}
-
-int QWindowsAudioInput::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 QWindowsAudioInput::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 QWindowsAudioInput::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 QWindowsAudioInput::setBufferSize(int value)
-{
-    buffer_size = value;
-}
-
-int QWindowsAudioInput::bufferSize() const
-{
-    return buffer_size;
-}
-
-int QWindowsAudioInput::periodSize() const
-{
-    return period_size;
-}
-
-void QWindowsAudioInput::setNotifyInterval(int ms)
-{
-    intervalTime = qMax(0, ms);
-}
-
-int QWindowsAudioInput::notifyInterval() const
-{
-    return intervalTime;
-}
-
-qint64 QWindowsAudioInput::processedUSecs() const
-{
-    if (deviceState == QAudio::StoppedState)
-        return 0;
-    qint64 result = qint64(1000000) * totalTimeValue /
-        (settings.channelCount()*(settings.sampleSize()/8)) /
-        settings.sampleRate();
-
-    return result;
-}
-
-void QWindowsAudioInput::suspend()
-{
-    if(deviceState == QAudio::ActiveState) {
-        waveInReset(hWaveIn);
-        deviceState = QAudio::SuspendedState;
-        emit stateChanged(deviceState);
-    }
-}
-
-void QWindowsAudioInput::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 QWindowsAudioInput::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 QWindowsAudioInput::elapsedUSecs() const
-{
-    if (deviceState == QAudio::StoppedState)
-        return 0;
-
-    return timeStampOpened.elapsed() * qint64(1000);
-}
-
-void QWindowsAudioInput::reset()
-{
-    stop();
-    if (period_size > 0)
-        waveFreeBlockCount = buffer_size / period_size;
-}
-
-InputPrivate::InputPrivate(QWindowsAudioInput* audio)
-{
-    audioDevice = qobject_cast<QWindowsAudioInput*>(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_qwindowsaudioinput.cpp"
diff --git a/src/plugins/windowsaudio/qwindowsaudioinput.h b/src/plugins/windowsaudio/qwindowsaudioinput.h
deleted file mode 100644
index 817176731..000000000
--- a/src/plugins/windowsaudio/qwindowsaudioinput.h
+++ /dev/null
@@ -1,177 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of other Qt classes.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#ifndef QWINDOWSAUDIOINPUT_H
-#define QWINDOWSAUDIOINPUT_H
-
-#include "qwindowsaudioutils.h"
-
-#include <QtCore/qfile.h>
-#include <QtCore/qdebug.h>
-#include <QtCore/qelapsedtimer.h>
-#include <QtCore/qstring.h>
-#include <QtCore/qstringlist.h>
-#include <QtCore/qdatetime.h>
-#include <QtCore/qmutex.h>
-
-#include <QtMultimedia/qaudio.h>
-#include <QtMultimedia/qaudiodeviceinfo.h>
-#include <QtMultimedia/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 QWindowsAudioInput : public QAbstractAudioInput
-{
-    Q_OBJECT
-public:
-    QWindowsAudioInput(const QByteArray &device);
-    ~QWindowsAudioInput();
-
-    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;
-    void setVolume(qreal volume);
-    qreal volume() 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;
-    QElapsedTimer timeStamp;
-    qint64 elapsedTimeOffset;
-    QElapsedTimer timeStampOpened;
-    qint64 totalTimeValue;
-    bool pullMode;
-    bool resuming;
-    WAVEFORMATEXTENSIBLE 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_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2 );
-
-    WAVEHDR* allocateBlocks(int size, int count);
-    void freeBlocks(WAVEHDR* blockArray);
-    bool open();
-    void close();
-
-    void initMixer();
-    void closeMixer();
-    HMIXEROBJ mixerID;
-    MIXERLINECONTROLS mixerLineControls;
-    qreal cachedVolume;
-
-private slots:
-    void feedback();
-    bool deviceReady();
-
-signals:
-    void processMore();
-};
-
-class InputPrivate : public QIODevice
-{
-    Q_OBJECT
-public:
-    InputPrivate(QWindowsAudioInput* audio);
-    ~InputPrivate();
-
-    qint64 readData( char* data, qint64 len);
-    qint64 writeData(const char* data, qint64 len);
-
-    void trigger();
-private:
-    QWindowsAudioInput *audioDevice;
-};
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/plugins/windowsaudio/qwindowsaudiooutput.cpp b/src/plugins/windowsaudio/qwindowsaudiooutput.cpp
deleted file mode 100644
index e0635307e..000000000
--- a/src/plugins/windowsaudio/qwindowsaudiooutput.cpp
+++ /dev/null
@@ -1,676 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of other Qt classes.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// INTERNAL USE ONLY: Do NOT use for any other purpose.
-//
-
-#include "qwindowsaudiooutput.h"
-#include "qwindowsaudiodeviceinfo.h"
-#include "qwindowsaudioutils.h"
-#include <QtEndian>
-#include <QtCore/QDataStream>
-#include <QtCore/qtimer.h>
-#include <private/qaudiohelpers_p.h>
-
-//#define DEBUG_AUDIO 1
-
-QT_BEGIN_NAMESPACE
-
-QWindowsAudioOutput::QWindowsAudioOutput(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;
-    volumeCache = qreal(1.0);
-    blocks_count = 5;
-}
-
-QWindowsAudioOutput::~QWindowsAudioOutput()
-{
-    mutex.lock();
-    finished = true;
-    mutex.unlock();
-
-    close();
-}
-
-void CALLBACK QWindowsAudioOutput::waveOutProc( HWAVEOUT hWaveOut, UINT uMsg,
-        DWORD_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2 )
-{
-    Q_UNUSED(dwParam1);
-    Q_UNUSED(dwParam2);
-    Q_UNUSED(hWaveOut);
-
-    QWindowsAudioOutput* qAudio;
-    qAudio = (QWindowsAudioOutput*)(dwInstance);
-    if(!qAudio)
-        return;
-
-    QMutexLocker locker(&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->blocks_count)
-                qAudio->waveFreeBlockCount = qAudio->blocks_count;
-
-            qAudio->feedback();
-            break;
-        default:
-            return;
-    }
-}
-
-WAVEHDR* QWindowsAudioOutput::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 QWindowsAudioOutput::freeBlocks(WAVEHDR* blockArray)
-{
-    WAVEHDR* blocks = blockArray;
-    for (int i = 0; i < blocks_count; ++i) {
-        waveOutUnprepareHeader(hWaveOut,blocks, sizeof(WAVEHDR));
-        blocks++;
-    }
-    HeapFree(GetProcessHeap(), 0, blockArray);
-}
-
-QAudioFormat QWindowsAudioOutput::format() const
-{
-    return settings;
-}
-
-void QWindowsAudioOutput::setFormat(const QAudioFormat& fmt)
-{
-    if (deviceState == QAudio::StoppedState)
-        settings = fmt;
-}
-
-void QWindowsAudioOutput::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* QWindowsAudioOutput::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 QWindowsAudioOutput::stop()
-{
-    if(deviceState == QAudio::StoppedState)
-        return;
-    close();
-    if(!pullMode && audioSource) {
-        delete audioSource;
-        audioSource = 0;
-    }
-    emit stateChanged(deviceState);
-}
-
-bool QWindowsAudioOutput::open()
-{
-#ifdef DEBUG_AUDIO
-    QTime now(QTime::currentTime());
-    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
-#endif
-
-    period_size = 0;
-
-    if (!qt_convertFormat(settings, &wfx)) {
-        qWarning("QAudioOutput: open error, invalid format.");
-    } else if (buffer_size == 0) {
-        // Default buffer size, 200ms, default period size is 40ms
-        buffer_size
-                = (settings.sampleRate()
-                * settings.channelCount()
-                * settings.sampleSize()
-                + 39) / 40;
-        period_size = buffer_size / 5;
-    } else {
-        period_size = buffer_size / 5;
-    }
-
-    // Make even size of wave block to prevent crackling
-    // due to waveOutWrite() does not like odd buffer length
-    period_size &= ~1;
-
-    if (period_size == 0) {
-        errorState = QAudio::OpenError;
-        deviceState = QAudio::StoppedState;
-        emit stateChanged(deviceState);
-        return false;
-    }
-
-    const int periods = buffer_size / period_size;
-    bool ok = false;
-    static int wave_buffers = qEnvironmentVariableIntValue("QT_WAVE_BUFFERS", &ok);
-    if (wave_buffers < periods) {
-        if (ok)
-            qWarning("Number of WAVE buffers (QT_WAVE_BUFFERS=%d) cannot be less than %d.", wave_buffers, periods);
-        wave_buffers = periods;
-    }
-
-    blocks_count = wave_buffers;
-    waveBlocks = allocateBlocks(period_size, blocks_count);
-
-    mutex.lock();
-    waveFreeBlockCount = blocks_count;
-    mutex.unlock();
-
-    waveCurrentBlock = 0;
-
-    if(audioBuffer == 0)
-        audioBuffer = new char[blocks_count * period_size];
-
-    timeStamp.restart();
-    elapsedTimeOffset = 0;
-
-    QDataStream ds(&m_device, QIODevice::ReadOnly);
-    quint32 deviceId;
-    ds >> deviceId;
-
-    if (waveOutOpen(&hWaveOut, UINT_PTR(deviceId), &wfx.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 QWindowsAudioOutput::pauseAndSleep()
-{
-    waveOutPause(hWaveOut);
-    int bitrate = settings.sampleRate() * settings.channelCount() * settings.sampleSize() / 8;
-    // Time of written data.
-    int delay = (buffer_size - bytesFree()) * 1000 / bitrate;
-    Sleep(delay + 10);
-}
-
-void QWindowsAudioOutput::close()
-{
-    if(deviceState == QAudio::StoppedState)
-        return;
-
-    // Pause playback before reset to avoid uneeded crackling at the end.
-    pauseAndSleep();
-    deviceState = QAudio::StoppedState;
-    errorState = QAudio::NoError;
-    waveOutReset(hWaveOut);
-
-    freeBlocks(waveBlocks);
-    waveOutClose(hWaveOut);
-    delete [] audioBuffer;
-    audioBuffer = 0;
-    buffer_size = 0;
-}
-
-int QWindowsAudioOutput::bytesFree() const
-{
-    int buf;
-    buf = waveFreeBlockCount*period_size;
-
-    return buf;
-}
-
-int QWindowsAudioOutput::periodSize() const
-{
-    return period_size;
-}
-
-void QWindowsAudioOutput::setBufferSize(int value)
-{
-    if(deviceState == QAudio::StoppedState)
-        buffer_size = value;
-}
-
-int QWindowsAudioOutput::bufferSize() const
-{
-    return buffer_size;
-}
-
-void QWindowsAudioOutput::setNotifyInterval(int ms)
-{
-    intervalTime = qMax(0, ms);
-}
-
-int QWindowsAudioOutput::notifyInterval() const
-{
-    return intervalTime;
-}
-
-qint64 QWindowsAudioOutput::processedUSecs() const
-{
-    if (deviceState == QAudio::StoppedState)
-        return 0;
-    qint64 result = qint64(1000000) * totalTimeValue /
-        (settings.channelCount()*(settings.sampleSize()/8)) /
-        settings.sampleRate();
-
-    return result;
-}
-
-qint64 QWindowsAudioOutput::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;
-
-    QByteArray reverse;
-    if (settings.byteOrder() == QAudioFormat::BigEndian) {
-
-        switch (settings.sampleSize()) {
-            case 8:
-                // No need to convert
-                break;
-
-            case 16:
-                reverse.resize(l);
-                for (qint64 i = 0; i < (l >> 1); i++)
-                    *((qint16*)reverse.data() + i) = qFromBigEndian(*((qint16*)data + i));
-                p = reverse.data();
-                break;
-
-            case 32:
-                reverse.resize(l);
-                for (qint64 i = 0; i < (l >> 2); i++)
-                    *((qint32*)reverse.data() + i) = qFromBigEndian(*((qint32*)data + i));
-                p = reverse.data();
-                break;
-        }
-    }
-
-    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;
-
-        if (volumeCache < qreal(1.0))
-            QAudioHelperInternal::qMultiplySamples(volumeCache, settings, p, current->lpData, remain);
-        else
-            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 %= blocks_count;
-        current = &waveBlocks[waveCurrentBlock];
-        current->dwUser = 0;
-        errorState = QAudio::NoError;
-        if (deviceState != QAudio::ActiveState) {
-            deviceState = QAudio::ActiveState;
-            emit stateChanged(deviceState);
-        }
-    }
-    return (len-l);
-}
-
-void QWindowsAudioOutput::resume()
-{
-    if(deviceState == QAudio::SuspendedState) {
-        deviceState = pullMode ? QAudio::ActiveState : QAudio::IdleState;
-        errorState = QAudio::NoError;
-        waveOutRestart(hWaveOut);
-        QTimer::singleShot(10, this, SLOT(feedback()));
-        emit stateChanged(deviceState);
-    }
-}
-
-void QWindowsAudioOutput::suspend()
-{
-    if(deviceState == QAudio::ActiveState || deviceState == QAudio::IdleState) {
-        pauseAndSleep();
-        deviceState = QAudio::SuspendedState;
-        errorState = QAudio::NoError;
-        emit stateChanged(deviceState);
-    }
-}
-
-void QWindowsAudioOutput::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 QWindowsAudioOutput::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 == blocks_count) {
-                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 >= blocks_count && 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 QWindowsAudioOutput::elapsedUSecs() const
-{
-    if (deviceState == QAudio::StoppedState)
-        return 0;
-
-    return timeStampOpened.elapsed() * qint64(1000);
-}
-
-QAudio::Error QWindowsAudioOutput::error() const
-{
-    return errorState;
-}
-
-QAudio::State QWindowsAudioOutput::state() const
-{
-    return deviceState;
-}
-
-void QWindowsAudioOutput::setVolume(qreal v)
-{
-    if (qFuzzyCompare(volumeCache, v))
-        return;
-
-    volumeCache = qBound(qreal(0), v, qreal(1));
-}
-
-qreal QWindowsAudioOutput::volume() const
-{
-    return volumeCache;
-}
-
-void QWindowsAudioOutput::reset()
-{
-    stop();
-}
-
-OutputPrivate::OutputPrivate(QWindowsAudioOutput* audio)
-{
-    audioDevice = qobject_cast<QWindowsAudioOutput*>(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_qwindowsaudiooutput.cpp"
diff --git a/src/plugins/windowsaudio/qwindowsaudiooutput.h b/src/plugins/windowsaudio/qwindowsaudiooutput.h
deleted file mode 100644
index e81121810..000000000
--- a/src/plugins/windowsaudio/qwindowsaudiooutput.h
+++ /dev/null
@@ -1,168 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of other Qt classes.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#ifndef QWINDOWSAUDIOOUTPUT_H
-#define QWINDOWSAUDIOOUTPUT_H
-
-#include "qwindowsaudioutils.h"
-
-#include <QtCore/qdebug.h>
-#include <QtCore/qelapsedtimer.h>
-#include <QtCore/qiodevice.h>
-#include <QtCore/qstring.h>
-#include <QtCore/qstringlist.h>
-#include <QtCore/qdatetime.h>
-#include <QtCore/qmutex.h>
-
-#include <QtMultimedia/qaudio.h>
-#include <QtMultimedia/qaudiodeviceinfo.h>
-#include <QtMultimedia/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 QWindowsAudioOutput : public QAbstractAudioOutput
-{
-    Q_OBJECT
-public:
-    QWindowsAudioOutput(const QByteArray &device);
-    ~QWindowsAudioOutput();
-
-    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;
-    void setVolume(qreal);
-    qreal volume() const;
-
-    QIODevice* audioSource;
-    QAudioFormat settings;
-    QAudio::Error errorState;
-    QAudio::State deviceState;
-
-private slots:
-    void feedback();
-    bool deviceReady();
-
-private:
-    void pauseAndSleep();
-    QByteArray m_device;
-    int bytesAvailable;
-    QElapsedTimer timeStamp;
-    qint64 elapsedTimeOffset;
-    QElapsedTimer timeStampOpened;
-    qint32 buffer_size;
-    qint32 period_size;
-    qint32 blocks_count;
-    qint64 totalTimeValue;
-    bool pullMode;
-    int intervalTime;
-    qreal volumeCache;
-    static void QT_WIN_CALLBACK waveOutProc( HWAVEOUT hWaveOut, UINT uMsg,
-            DWORD_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2 );
-
-    QMutex mutex;
-
-    WAVEHDR* allocateBlocks(int size, int count);
-    void freeBlocks(WAVEHDR* blockArray);
-    bool open();
-    void close();
-
-    WAVEFORMATEXTENSIBLE wfx;
-    HWAVEOUT hWaveOut;
-    WAVEHDR* waveBlocks;
-    volatile bool finished;
-    volatile int waveFreeBlockCount;
-    int waveCurrentBlock;
-    char* audioBuffer;
-};
-
-class OutputPrivate : public QIODevice
-{
-    Q_OBJECT
-public:
-    OutputPrivate(QWindowsAudioOutput* audio);
-    ~OutputPrivate();
-
-    qint64 readData( char* data, qint64 len);
-    qint64 writeData(const char* data, qint64 len);
-
-private:
-    QWindowsAudioOutput *audioDevice;
-};
-
-QT_END_NAMESPACE
-
-
-#endif // QWINDOWSAUDIOOUTPUT_H
diff --git a/src/plugins/windowsaudio/qwindowsaudioplugin.cpp b/src/plugins/windowsaudio/qwindowsaudioplugin.cpp
deleted file mode 100644
index 8f532fa70..000000000
--- a/src/plugins/windowsaudio/qwindowsaudioplugin.cpp
+++ /dev/null
@@ -1,77 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qwindowsaudioplugin.h"
-#include "qwindowsaudiodeviceinfo.h"
-#include "qwindowsaudioinput.h"
-#include "qwindowsaudiooutput.h"
-
-QT_BEGIN_NAMESPACE
-
-QWindowsAudioPlugin::QWindowsAudioPlugin(QObject *parent)
-    : QAudioSystemPlugin(parent)
-{
-}
-
-QByteArray QWindowsAudioPlugin::defaultDevice(QAudio::Mode mode) const
-{
-    return QWindowsAudioDeviceInfo::defaultDevice(mode);
-}
-
-QList<QByteArray> QWindowsAudioPlugin::availableDevices(QAudio::Mode mode) const
-{
-    return QWindowsAudioDeviceInfo::availableDevices(mode);
-}
-
-QAbstractAudioInput *QWindowsAudioPlugin::createInput(const QByteArray &device)
-{
-    return new QWindowsAudioInput(device);
-}
-
-QAbstractAudioOutput *QWindowsAudioPlugin::createOutput(const QByteArray &device)
-{
-    return new QWindowsAudioOutput(device);
-}
-
-QAbstractAudioDeviceInfo *QWindowsAudioPlugin::createDeviceInfo(const QByteArray &device, QAudio::Mode mode)
-{
-    return new QWindowsAudioDeviceInfo(device, mode);
-}
-
-QT_END_NAMESPACE
diff --git a/src/plugins/windowsaudio/qwindowsaudioplugin.h b/src/plugins/windowsaudio/qwindowsaudioplugin.h
deleted file mode 100644
index 5b36d1727..000000000
--- a/src/plugins/windowsaudio/qwindowsaudioplugin.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QWINDOWSAUDIOPLUGIN_H
-#define QWINDOWSAUDIOPLUGIN_H
-
-#include <QtMultimedia/qaudiosystemplugin.h>
-
-QT_BEGIN_NAMESPACE
-
-class QWindowsAudioPlugin : public QAudioSystemPlugin
-{
-    Q_OBJECT
-
-    Q_PLUGIN_METADATA(IID "org.qt-project.qt.audiosystemfactory/5.0" FILE "windowsaudio.json")
-
-public:
-    QWindowsAudioPlugin(QObject *parent = 0);
-    ~QWindowsAudioPlugin() {}
-
-    QByteArray defaultDevice(QAudio::Mode mode) const override;
-    QList<QByteArray> availableDevices(QAudio::Mode mode) const override;
-    QAbstractAudioInput *createInput(const QByteArray &device) override;
-    QAbstractAudioOutput *createOutput(const QByteArray &device) override;
-    QAbstractAudioDeviceInfo *createDeviceInfo(const QByteArray &device, QAudio::Mode mode) override;
-};
-
-QT_END_NAMESPACE
-
-#endif // QWINDOWSAUDIOPLUGIN_H
diff --git a/src/plugins/windowsaudio/qwindowsaudioutils.cpp b/src/plugins/windowsaudio/qwindowsaudioutils.cpp
deleted file mode 100644
index 4eaa80b41..000000000
--- a/src/plugins/windowsaudio/qwindowsaudioutils.cpp
+++ /dev/null
@@ -1,117 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qwindowsaudioutils.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 WAVE_FORMAT_EXTENSIBLE
-    #define WAVE_FORMAT_EXTENSIBLE 0xFFFE
-#endif
-
-#ifndef WAVE_FORMAT_IEEE_FLOAT
-    #define WAVE_FORMAT_IEEE_FLOAT 0x0003
-#endif
-
-static const GUID _KSDATAFORMAT_SUBTYPE_PCM = {
-     0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
-
-static const GUID _KSDATAFORMAT_SUBTYPE_IEEE_FLOAT = {
-     0x00000003, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
-
-QT_BEGIN_NAMESPACE
-
-bool qt_convertFormat(const QAudioFormat &format, WAVEFORMATEXTENSIBLE *wfx)
-{
-    if (!wfx
-            || !format.isValid()
-            || format.codec() != QStringLiteral("audio/pcm")
-            || format.sampleRate() <= 0
-            || format.channelCount() <= 0
-            || format.sampleSize() <= 0
-            || format.byteOrder() != QAudioFormat::LittleEndian) {
-        return false;
-    }
-
-    wfx->Format.nSamplesPerSec = format.sampleRate();
-    wfx->Format.wBitsPerSample = wfx->Samples.wValidBitsPerSample = format.sampleSize();
-    wfx->Format.nChannels = format.channelCount();
-    wfx->Format.nBlockAlign = (wfx->Format.wBitsPerSample / 8) * wfx->Format.nChannels;
-    wfx->Format.nAvgBytesPerSec = wfx->Format.nBlockAlign * wfx->Format.nSamplesPerSec;
-    wfx->Format.cbSize = 0;
-
-    if (format.sampleType() == QAudioFormat::Float) {
-        wfx->Format.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
-        wfx->SubFormat = _KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
-    } else {
-        wfx->Format.wFormatTag = WAVE_FORMAT_PCM;
-        wfx->SubFormat = _KSDATAFORMAT_SUBTYPE_PCM;
-    }
-
-    if (format.channelCount() > 2) {
-        wfx->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
-        wfx->Format.cbSize = 22;
-        wfx->dwChannelMask = 0xFFFFFFFF >> (32 - format.channelCount());
-    }
-
-    return true;
-}
-
-QT_END_NAMESPACE
diff --git a/src/plugins/windowsaudio/qwindowsaudioutils.h b/src/plugins/windowsaudio/qwindowsaudioutils.h
deleted file mode 100644
index b8567d85c..000000000
--- a/src/plugins/windowsaudio/qwindowsaudioutils.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QWINDOWSAUDIOUTILS_H
-#define QWINDOWSAUDIOUTILS_H
-
-#include <qaudioformat.h>
-#include <QtCore/qt_windows.h>
-#include <mmsystem.h>
-
-#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
-
-QT_BEGIN_NAMESPACE
-
-bool qt_convertFormat(const QAudioFormat &format, WAVEFORMATEXTENSIBLE *wfx);
-
-QT_END_NAMESPACE
-
-#endif // QWINDOWSAUDIOUTILS_H
diff --git a/src/plugins/windowsaudio/windows.pri b/src/plugins/windowsaudio/windows.pri
deleted file mode 100644
index 6d5fe9495..000000000
--- a/src/plugins/windowsaudio/windows.pri
+++ /dev/null
@@ -1,25 +0,0 @@
-TARGET = qtaudio_windows
-QT += multimedia-private
-
-LIBS += -lstrmiids -lole32 -loleaut32 -lwinmm
-
-HEADERS += \
-    qwindowsaudioplugin.h \
-    qwindowsaudiodeviceinfo.h \
-    qwindowsaudioinput.h \
-    qwindowsaudiooutput.h \
-    qwindowsaudioutils.h
-
-SOURCES += \
-    qwindowsaudioplugin.cpp \
-    qwindowsaudiodeviceinfo.cpp \
-    qwindowsaudioinput.cpp \
-    qwindowsaudiooutput.cpp \
-    qwindowsaudioutils.cpp
-
-OTHER_FILES += \
-    windowsaudio.json
-
-PLUGIN_TYPE = audio
-PLUGIN_CLASS_NAME = QWindowsAudioPlugin
-load(qt_plugin)
diff --git a/src/plugins/windowsaudio/windowsaudio.json b/src/plugins/windowsaudio/windowsaudio.json
deleted file mode 100644
index a31d52107..000000000
--- a/src/plugins/windowsaudio/windowsaudio.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "Keys": ["default"]
-}