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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 QAUDIOINPUTPULSE_H
#define QAUDIOINPUTPULSE_H
#include <QtCore/qfile.h>
#include <QtCore/qtimer.h>
#include <QtCore/qstring.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qelapsedtimer.h>
#include <QtCore/qiodevice.h>
#include "qaudio.h"
#include "qaudiodevice.h"
#include <private/qaudiosystem_p.h>
#include <private/qaudiostatemachine_p.h>
#include <pulse/pulseaudio.h>
QT_BEGIN_NAMESPACE
class PulseInputPrivate;
class QPulseAudioSource : public QPlatformAudioSource
{
Q_OBJECT
public:
QPulseAudioSource(const QByteArray &device, QObject *parent);
~QPulseAudioSource();
qint64 read(char *data, qint64 len);
void start(QIODevice *device) override;
QIODevice *start() 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 setFormat(const QAudioFormat &format) override;
QAudioFormat format() const override;
void setVolume(qreal volume) override;
qreal volume() const override;
qint64 m_totalTimeValue;
QIODevice *m_audioSource;
QAudioFormat m_format;
qreal m_volume;
protected:
void timerEvent(QTimerEvent *event) override;
private slots:
void userFeed();
void onPulseContextFailed();
private:
void applyVolume(const void *src, void *dest, int len);
bool open();
void close();
bool m_pullMode;
bool m_opened;
int m_bufferSize;
int m_periodSize;
unsigned int m_periodTime;
QBasicTimer m_timer;
qint64 m_elapsedTimeOffset;
pa_stream *m_stream;
QByteArray m_streamName;
QByteArray m_device;
QByteArray m_tempBuffer;
pa_sample_spec m_spec;
QAudioStateMachine m_stateMachine;
};
class PulseInputPrivate : public QIODevice
{
Q_OBJECT
public:
PulseInputPrivate(QPulseAudioSource *audio);
~PulseInputPrivate() override = default;
qint64 readData(char *data, qint64 len) override;
qint64 writeData(const char *data, qint64 len) override;
void trigger();
private:
QPulseAudioSource *m_audioDevice;
};
QT_END_NAMESPACE
#endif
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