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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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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