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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
//
// 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_p.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 <QtCore/qbytearray.h>
#include <QtMultimedia/qaudio.h>
#include <QtMultimedia/qaudiodevice.h>
#include <private/qaudiosystem_p.h>
#include <qwindowsresampler_p.h>
struct IMMDevice;
struct IAudioClient;
struct IAudioCaptureClient;
QT_BEGIN_NAMESPACE
class QTimer;
class QWindowsAudioSource : public QPlatformAudioSource
{
Q_OBJECT
public:
QWindowsAudioSource(QComPtr<IMMDevice> device, QObject *parent);
~QWindowsAudioSource();
qint64 read(char* data, qint64 len);
void setFormat(const QAudioFormat& fmt) override;
QAudioFormat format() const override;
QIODevice* start() override;
void start(QIODevice* device) override;
void stop() override;
void reset() override;
void suspend() override;
void resume() override;
qsizetype bytesReady() const override;
void setBufferSize(qsizetype value) override;
qsizetype bufferSize() const override;
qint64 processedUSecs() const override;
QAudio::Error error() const override;
QAudio::State state() const override;
void setVolume(qreal volume) override;
qreal volume() const override;
private:
void deviceStateChange(QAudio::State state, QAudio::Error error);
void pullCaptureClient();
void schedulePull();
QByteArray readCaptureClientBuffer();
QTimer *m_timer = nullptr;
QComPtr<IMMDevice> m_device;
QComPtr<IAudioClient> m_audioClient;
QComPtr<IAudioCaptureClient> m_captureClient;
QWindowsResampler m_resampler;
int m_bufferSize = 0;
qreal m_volume = 1.0;
QIODevice* m_ourSink = nullptr;
QIODevice* m_clientSink = nullptr;
QAudioFormat m_format;
QAudio::Error m_errorState = QAudio::NoError;
QAudio::State m_deviceState = QAudio::StoppedState;
QByteArray m_clientBufferResidue;
bool open();
void close();
};
QT_END_NAMESPACE
#endif
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