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/****************************************************************************
**
** 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 QOPENSLESAUDIOINPUT_H
#define QOPENSLESAUDIOINPUT_H
#include <qaudiosystem.h>
#include <QTime>
#include <SLES/OpenSLES.h>
#ifdef ANDROID
#include <SLES/OpenSLES_Android.h>
#define QT_ANDROID_PRESET_MIC "mic"
#define QT_ANDROID_PRESET_CAMCORDER "camcorder"
#define QT_ANDROID_PRESET_VOICE_RECOGNITION "voicerecognition"
#endif
QT_BEGIN_NAMESPACE
class QOpenSLESEngine;
class QIODevice;
class QBuffer;
class QOpenSLESAudioInput : public QAbstractAudioInput
{
Q_OBJECT
public:
QOpenSLESAudioInput(const QByteArray &device);
~QOpenSLESAudioInput();
void start(QIODevice *device);
QIODevice *start();
void stop();
void reset();
void suspend();
void resume();
int bytesReady() const;
int periodSize() const;
void setBufferSize(int value);
int bufferSize() const;
void setNotifyInterval(int milliSeconds);
int notifyInterval() const;
qint64 processedUSecs() const;
qint64 elapsedUSecs() const;
QAudio::Error error() const;
QAudio::State state() const;
void setFormat(const QAudioFormat &format);
QAudioFormat format() const;
void setVolume(qreal volume);
qreal volume() const;
public Q_SLOTS:
void processBuffer();
private:
bool startRecording();
void stopRecording();
void writeDataToDevice(const char *data, int size);
void flushBuffers();
QByteArray m_device;
QOpenSLESEngine *m_engine;
SLObjectItf m_recorderObject;
SLRecordItf m_recorder;
#ifdef ANDROID
SLuint32 m_recorderPreset;
SLAndroidSimpleBufferQueueItf m_bufferQueue;
#else
SLBufferQueueItf m_bufferQueue;
#endif
bool m_pullMode;
qint64 m_processedBytes;
QIODevice *m_audioSource;
QBuffer *m_bufferIODevice;
QByteArray m_pushBuffer;
QAudioFormat m_format;
QAudio::Error m_errorState;
QAudio::State m_deviceState;
QTime m_clockStamp;
qint64 m_lastNotifyTime;
qreal m_volume;
int m_bufferSize;
int m_periodSize;
int m_intervalTime;
QByteArray *m_buffers;
int m_currentBuffer;
};
QT_END_NAMESPACE
#endif // QOPENSLESAUDIOINPUT_H
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