qqnxaudiosource_p.h

Enable keyboard shortcuts

// Copyright (C) 2016 Research In Motion

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef QNXAUDIOINPUT_H

#define QNXAUDIOINPUT_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include "private/qaudiosystem_p.h"

#include "qqnxaudioutils_p.h"

#include <QSocketNotifier>

#include <QIODevice>

#include <QElapsedTimer>

#include <QTimer>

#include <sys/asoundlib.h>

QT_BEGIN_NAMESPACE

class QQnxAudioSource : public QPlatformAudioSource

    Q_OBJECT

public:

    explicit QQnxAudioSource(QAudioDevice deviceInfo, const QAudioFormat &, QObject *parent);

    ~QQnxAudioSource();

    void start(QIODevice*) override;

    QIODevice* start() override;

    void stop() override;

    void reset() override;

    void suspend() override;

    void resume() override;

    qsizetype bytesReady() const override;

    void setBufferSize(qsizetype ) override;

    qsizetype bufferSize() const  override;

    qint64 processedUSecs() const override;

    QAudio::State state() const override;

private Q_SLOTS:

    void userFeed();

    bool deviceReady();

private:

    friend class InputPrivate;

    bool open();

    void close();

    qint64 read(char *data, qint64 len);

    void changeState(QAudio::State state, QAudio::Error error);

    QIODevice *m_audioSource;

    QnxAudioUtils::HandleUniquePtr m_pcmHandle;

    QSocketNotifier *m_pcmNotifier;

    QAudio::State m_state;

    qint64 m_bytesRead;

    qint64 m_elapsedTimeOffset;

    qint64 m_totalTimeValue;

    int m_bytesAvailable;

    int m_bufferSize;

    int m_periodSize;

    bool m_pullMode;

};

class InputPrivate : public QIODevice

    Q_OBJECT

public:

    InputPrivate(QQnxAudioSource *audio);

    qint64 readData(char *data, qint64 len) override;

    qint64 writeData(const char *data, qint64 len) override;

    qint64 bytesAvailable() const override;

    bool isSequential() const override;

    void trigger();

private:

    QQnxAudioSource *m_audioDevice;

};

QT_END_NAMESPACE

#endif