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| ****************************************************************************/ |
| #ifndef IOSAUDIOINPUT_H |
| #define IOSAUDIOINPUT_H |
| |
| #include <qaudiosystem.h> |
| #include <AudioUnit/AudioUnit.h> |
| #include <CoreAudio/CoreAudioTypes.h> |
| #include <AudioToolbox/AudioToolbox.h> |
| |
| #include <QtCore/QIODevice> |
| #include <QtCore/QWaitCondition> |
| #include <QtCore/QMutex> |
| #include <QtCore/QTimer> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class CoreAudioRingBuffer; |
| class CoreAudioPacketFeeder; |
| class CoreAudioInputBuffer; |
| class CoreAudioInputDevice; |
| |
| class CoreAudioBufferList |
| { |
| public: |
| CoreAudioBufferList(AudioStreamBasicDescription const& streamFormat); |
| CoreAudioBufferList(AudioStreamBasicDescription const& streamFormat, char *buffer, int bufferSize); |
| CoreAudioBufferList(AudioStreamBasicDescription const& streamFormat, int framesToBuffer); |
| |
| ~CoreAudioBufferList(); |
| |
| AudioBufferList* audioBufferList() const { return m_bufferList; } |
| char *data(int buffer = 0) const; |
| qint64 bufferSize(int buffer = 0) const; |
| int frameCount(int buffer = 0) const; |
| int packetCount(int buffer = 0) const; |
| int packetSize() const; |
| void reset(); |
| |
| private: |
| bool m_owner; |
| int m_dataSize; |
| AudioStreamBasicDescription m_streamDescription; |
| AudioBufferList *m_bufferList; |
| }; |
| |
| class CoreAudioPacketFeeder |
| { |
| public: |
| CoreAudioPacketFeeder(CoreAudioBufferList *abl); |
| |
| bool feed(AudioBufferList& dst, UInt32& packetCount); |
| bool empty() const; |
| |
| private: |
| UInt32 m_totalPackets; |
| UInt32 m_position; |
| CoreAudioBufferList *m_audioBufferList; |
| }; |
| |
| class CoreAudioInputBuffer : public QObject |
| { |
| Q_OBJECT |
| |
| public: |
| CoreAudioInputBuffer(int bufferSize, |
| int maxPeriodSize, |
| AudioStreamBasicDescription const& inputFormat, |
| AudioStreamBasicDescription const& outputFormat, |
| QObject *parent); |
| |
| ~CoreAudioInputBuffer(); |
| |
| qreal volume() const; |
| void setVolume(qreal v); |
| |
| qint64 renderFromDevice(AudioUnit audioUnit, |
| AudioUnitRenderActionFlags *ioActionFlags, |
| const AudioTimeStamp *inTimeStamp, |
| UInt32 inBusNumber, |
| UInt32 inNumberFrames); |
| |
| qint64 readBytes(char *data, qint64 len); |
| |
| void setFlushDevice(QIODevice *device); |
| |
| void startFlushTimer(); |
| void stopFlushTimer(); |
| |
| void flush(bool all = false); |
| void reset(); |
| int available() const; |
| int used() const; |
| |
| signals: |
| void readyRead(); |
| |
| private slots: |
| void flushBuffer(); |
| |
| private: |
| bool m_deviceError; |
| int m_maxPeriodSize; |
| int m_periodTime; |
| QIODevice *m_device; |
| QTimer *m_flushTimer; |
| CoreAudioRingBuffer *m_buffer; |
| CoreAudioBufferList *m_inputBufferList; |
| AudioConverterRef m_audioConverter; |
| AudioStreamBasicDescription m_inputFormat; |
| AudioStreamBasicDescription m_outputFormat; |
| QAudioFormat m_qFormat; |
| qreal m_volume; |
| |
| const static OSStatus as_empty = 'qtem'; |
| |
| // Converter callback |
| static OSStatus converterCallback(AudioConverterRef inAudioConverter, |
| UInt32 *ioNumberDataPackets, |
| AudioBufferList *ioData, |
| AudioStreamPacketDescription **outDataPacketDescription, |
| void *inUserData); |
| }; |
| |
| class CoreAudioInputDevice : public QIODevice |
| { |
| Q_OBJECT |
| |
| public: |
| CoreAudioInputDevice(CoreAudioInputBuffer *audioBuffer, QObject *parent); |
| |
| qint64 readData(char *data, qint64 len); |
| qint64 writeData(const char *data, qint64 len); |
| |
| bool isSequential() const { return true; } |
| |
| private: |
| CoreAudioInputBuffer *m_audioBuffer; |
| }; |
| |
| class CoreAudioInput : public QAbstractAudioInput |
| { |
| Q_OBJECT |
| |
| public: |
| CoreAudioInput(const QByteArray &device); |
| ~CoreAudioInput(); |
| |
| 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; |
| |
| private slots: |
| void deviceStoppped(); |
| |
| private: |
| enum { |
| Running, |
| Stopped |
| }; |
| |
| bool open(); |
| void close(); |
| |
| void audioThreadStart(); |
| void audioThreadStop(); |
| |
| void audioDeviceStop(); |
| void audioDeviceActive(); |
| void audioDeviceFull(); |
| void audioDeviceError(); |
| |
| void startTimers(); |
| void stopTimers(); |
| |
| // Input callback |
| static OSStatus inputCallback(void *inRefCon, |
| AudioUnitRenderActionFlags *ioActionFlags, |
| const AudioTimeStamp *inTimeStamp, |
| UInt32 inBusNumber, |
| UInt32 inNumberFrames, |
| AudioBufferList *ioData); |
| |
| QByteArray m_device; |
| bool m_isOpen; |
| int m_periodSizeBytes; |
| int m_internalBufferSize; |
| qint64 m_totalFrames; |
| QAudioFormat m_audioFormat; |
| QIODevice *m_audioIO; |
| AudioUnit m_audioUnit; |
| #if defined(Q_OS_OSX) |
| AudioDeviceID m_audioDeviceId; |
| #endif |
| Float64 m_clockFrequency; |
| UInt64 m_startTime; |
| QAudio::Error m_errorCode; |
| QAudio::State m_stateCode; |
| CoreAudioInputBuffer *m_audioBuffer; |
| QMutex m_mutex; |
| QWaitCondition m_threadFinished; |
| QAtomicInt m_audioThreadState; |
| QTimer *m_intervalTimer; |
| AudioStreamBasicDescription m_streamFormat; |
| AudioStreamBasicDescription m_deviceFormat; |
| QAbstractAudioDeviceInfo *m_audioDeviceInfo; |
| qreal m_volume; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // IOSAUDIOINPUT_H |