| /**************************************************************************** |
| ** |
| ** 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 QOPENSLESAUDIOOUTPUT_H |
| #define QOPENSLESAUDIOOUTPUT_H |
| |
| #include <qaudiosystem.h> |
| #include <SLES/OpenSLES.h> |
| #include <qbytearray.h> |
| #include <qmap.h> |
| #include <QTime> |
| #include <QIODevice> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QOpenSLESAudioOutput : public QAbstractAudioOutput |
| { |
| Q_OBJECT |
| |
| public: |
| QOpenSLESAudioOutput(const QByteArray &device); |
| ~QOpenSLESAudioOutput(); |
| |
| void start(QIODevice *device) override; |
| QIODevice *start() override; |
| void stop() override; |
| void reset() override; |
| void suspend() override; |
| void resume() override; |
| int bytesFree() const override; |
| int periodSize() const override; |
| void setBufferSize(int value) override; |
| int bufferSize() const override; |
| void setNotifyInterval(int milliSeconds) override; |
| int notifyInterval() const override; |
| qint64 processedUSecs() const override; |
| qint64 elapsedUSecs() 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; |
| |
| void setCategory(const QString &category) override; |
| QString category() const override; |
| |
| private: |
| friend class SLIODevicePrivate; |
| |
| Q_INVOKABLE void onEOSEvent(); |
| Q_INVOKABLE void onBytesProcessed(qint64 bytes); |
| void bufferAvailable(quint32 count, quint32 playIndex); |
| |
| static void playCallback(SLPlayItf playItf, void *ctx, SLuint32 event); |
| static void bufferQueueCallback(SLBufferQueueItf bufferQueue, void *ctx); |
| |
| bool preparePlayer(); |
| void destroyPlayer(); |
| void stopPlayer(); |
| void startPlayer(); |
| qint64 writeData(const char *data, qint64 len); |
| |
| void setState(QAudio::State state); |
| void setError(QAudio::Error error); |
| |
| SLmillibel adjustVolume(qreal vol); |
| |
| QByteArray m_deviceName; |
| QAudio::State m_state; |
| QAudio::Error m_error; |
| SLObjectItf m_outputMixObject; |
| SLObjectItf m_playerObject; |
| SLPlayItf m_playItf; |
| SLVolumeItf m_volumeItf; |
| SLBufferQueueItf m_bufferQueueItf; |
| QIODevice *m_audioSource; |
| char *m_buffers; |
| qreal m_volume; |
| bool m_pullMode; |
| int m_nextBuffer; |
| int m_bufferSize; |
| int m_notifyInterval; |
| int m_periodSize; |
| qint64 m_elapsedTime; |
| qint64 m_processedBytes; |
| QAtomicInt m_availableBuffers; |
| SLuint32 m_eventMask; |
| bool m_startRequiresInit; |
| |
| qint32 m_streamType; |
| QTime m_clockStamp; |
| QAudioFormat m_format; |
| QString m_category; |
| static QMap<QString, qint32> m_categories; |
| }; |
| |
| class SLIODevicePrivate : public QIODevice |
| { |
| Q_OBJECT |
| |
| public: |
| inline SLIODevicePrivate(QOpenSLESAudioOutput *audio) : m_audioDevice(audio) {} |
| inline ~SLIODevicePrivate() override {} |
| |
| protected: |
| inline qint64 readData(char *, qint64) override { return 0; } |
| inline qint64 writeData(const char *data, qint64 len) override; |
| |
| private: |
| QOpenSLESAudioOutput *m_audioDevice; |
| }; |
| |
| qint64 SLIODevicePrivate::writeData(const char *data, qint64 len) |
| { |
| Q_ASSERT(m_audioDevice); |
| return m_audioDevice->writeData(data, len); |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif // QOPENSLESAUDIOOUTPUT_H |