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| |
| #ifndef QAUDIOOUTPUTPULSE_H |
| #define QAUDIOOUTPUTPULSE_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtCore/qfile.h> |
| #include <QtCore/qtimer.h> |
| #include <QtCore/qstring.h> |
| #include <QtCore/qstringlist.h> |
| #include <QtCore/qelapsedtimer.h> |
| #include <QtCore/qiodevice.h> |
| |
| #include "qaudio.h" |
| #include "qaudiodeviceinfo.h" |
| #include "qaudiosystem.h" |
| |
| #include <pulse/pulseaudio.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QPulseAudioOutput : public QAbstractAudioOutput |
| { |
| friend class PulseOutputPrivate; |
| Q_OBJECT |
| |
| public: |
| QPulseAudioOutput(const QByteArray &device); |
| ~QPulseAudioOutput(); |
| |
| 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; |
| |
| public: |
| void streamUnderflowCallback(); |
| |
| private: |
| void setState(QAudio::State state); |
| void setError(QAudio::Error error); |
| |
| bool open(); |
| void close(); |
| qint64 write(const char *data, qint64 len); |
| |
| private Q_SLOTS: |
| void userFeed(); |
| void onPulseContextFailed(); |
| |
| private: |
| QByteArray m_device; |
| QByteArray m_streamName; |
| QAudioFormat m_format; |
| QAudio::Error m_errorState; |
| QAudio::State m_deviceState; |
| bool m_pullMode; |
| bool m_opened; |
| QIODevice *m_audioSource; |
| QTimer m_periodTimer; |
| int m_periodTime; |
| pa_stream *m_stream; |
| int m_notifyInterval; |
| int m_periodSize; |
| int m_bufferSize; |
| int m_maxBufferSize; |
| QElapsedTimer m_clockStamp; |
| qint64 m_totalTimeValue; |
| QTimer *m_tickTimer; |
| char *m_audioBuffer; |
| QElapsedTimer m_timeStamp; |
| qint64 m_elapsedTimeOffset; |
| bool m_resuming; |
| QString m_category; |
| |
| qreal m_volume; |
| pa_sample_spec m_spec; |
| }; |
| |
| class PulseOutputPrivate : public QIODevice |
| { |
| friend class QPulseAudioOutput; |
| Q_OBJECT |
| |
| public: |
| PulseOutputPrivate(QPulseAudioOutput *audio); |
| virtual ~PulseOutputPrivate() {} |
| |
| protected: |
| qint64 readData(char *data, qint64 len); |
| qint64 writeData(const char *data, qint64 len); |
| |
| private: |
| QPulseAudioOutput *m_audioDevice; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |