| /**************************************************************************** |
| ** |
| ** 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 IOSAUDIOOUTPUT_H |
| #define IOSAUDIOOUTPUT_H |
| |
| #include <qaudiosystem.h> |
| |
| #if defined(Q_OS_OSX) |
| # include <CoreAudio/CoreAudio.h> |
| #endif |
| #include <AudioUnit/AudioUnit.h> |
| #include <CoreAudio/CoreAudioTypes.h> |
| |
| #include <QtCore/QIODevice> |
| #include <QtCore/QWaitCondition> |
| #include <QtCore/QMutex> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class CoreAudioOutputBuffer; |
| class QTimer; |
| class CoreAudioDeviceInfo; |
| class CoreAudioRingBuffer; |
| |
| class CoreAudioOutputBuffer : public QObject |
| { |
| Q_OBJECT |
| |
| public: |
| CoreAudioOutputBuffer(int bufferSize, int maxPeriodSize, QAudioFormat const& audioFormat); |
| ~CoreAudioOutputBuffer(); |
| |
| qint64 readFrames(char *data, qint64 maxFrames); |
| qint64 writeBytes(const char *data, qint64 maxSize); |
| |
| int available() const; |
| void reset(); |
| |
| void setPrefetchDevice(QIODevice *device); |
| |
| void startFillTimer(); |
| void stopFillTimer(); |
| |
| signals: |
| void readyRead(); |
| |
| private slots: |
| void fillBuffer(); |
| |
| private: |
| bool m_deviceError; |
| int m_maxPeriodSize; |
| int m_bytesPerFrame; |
| int m_periodTime; |
| QIODevice *m_device; |
| QTimer *m_fillTimer; |
| CoreAudioRingBuffer *m_buffer; |
| }; |
| |
| class CoreAudioOutputDevice : public QIODevice |
| { |
| public: |
| CoreAudioOutputDevice(CoreAudioOutputBuffer *audioBuffer, QObject *parent); |
| |
| qint64 readData(char *data, qint64 len); |
| qint64 writeData(const char *data, qint64 len); |
| |
| bool isSequential() const { return true; } |
| |
| private: |
| CoreAudioOutputBuffer *m_audioBuffer; |
| }; |
| |
| |
| class CoreAudioOutput : public QAbstractAudioOutput |
| { |
| Q_OBJECT |
| |
| public: |
| CoreAudioOutput(const QByteArray &device); |
| ~CoreAudioOutput(); |
| |
| void start(QIODevice *device); |
| QIODevice *start(); |
| void stop(); |
| void reset(); |
| void suspend(); |
| void resume(); |
| int bytesFree() 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; |
| |
| void setCategory(const QString &category); |
| QString category() const; |
| |
| private slots: |
| void deviceStopped(); |
| void inputReady(); |
| |
| private: |
| enum { |
| Running, |
| Draining, |
| Stopped |
| }; |
| |
| static OSStatus renderCallback(void *inRefCon, |
| AudioUnitRenderActionFlags *ioActionFlags, |
| const AudioTimeStamp *inTimeStamp, |
| UInt32 inBusNumber, |
| UInt32 inNumberFrames, |
| AudioBufferList *ioData); |
| |
| bool open(); |
| void close(); |
| void audioThreadStart(); |
| void audioThreadStop(); |
| void audioThreadDrain(); |
| void audioDeviceStop(); |
| void audioDeviceIdle(); |
| void audioDeviceError(); |
| |
| void startTimers(); |
| void stopTimers(); |
| |
| QByteArray m_device; |
| |
| bool m_isOpen; |
| int m_internalBufferSize; |
| int m_periodSizeBytes; |
| qint64 m_totalFrames; |
| QAudioFormat m_audioFormat; |
| QIODevice *m_audioIO; |
| #if defined(Q_OS_OSX) |
| AudioDeviceID m_audioDeviceId; |
| #endif |
| AudioUnit m_audioUnit; |
| Float64 m_clockFrequency; |
| UInt64 m_startTime; |
| AudioStreamBasicDescription m_streamFormat; |
| CoreAudioOutputBuffer *m_audioBuffer; |
| QAtomicInt m_audioThreadState; |
| QWaitCondition m_threadFinished; |
| QMutex m_mutex; |
| QTimer *m_intervalTimer; |
| CoreAudioDeviceInfo *m_audioDeviceInfo; |
| qreal m_cachedVolume; |
| qreal m_volume; |
| bool m_pullMode; |
| |
| QAudio::Error m_errorCode; |
| QAudio::State m_stateCode; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // IOSAUDIOOUTPUT_H |