| 1 | #ifndef AUDIOOUTPUT_H |
| 2 | #define AUDIOOUTPUT_H |
| 3 | |
| 4 | #include <QObject> |
| 5 | #include <QIODevice> |
| 6 | #include <QByteArray> |
| 7 | #include <QAudioFormat> |
| 8 | #include <QAudioDeviceInfo> |
| 9 | #include <QAudioOutput> |
| 10 | #include <QIODevice> |
| 11 | |
| 12 | class AudioOutput : public QIODevice |
| 13 | { |
| 14 | Q_OBJECT |
| 15 | public: |
| 16 | explicit AudioOutput(QObject *parent = 0); |
| 17 | bool init(int bits, int channels, int samplerate); |
| 18 | bool setDevice(QAudioDeviceInfo deviceInfo); |
| 19 | |
| 20 | void start(); |
| 21 | void setVolume(float volume); |
| 22 | void output(const char *data, int datalen); |
| 23 | void flush(); |
| 24 | void stop(); |
| 25 | |
| 26 | qint64 readData(char *data, qint64 maxlen); |
| 27 | qint64 writeData(const char *data, qint64 len); |
| 28 | qint64 bytesAvailable() const; |
| 29 | bool isSequential() const; |
| 30 | |
| 31 | private: |
| 32 | void reinit(); |
| 33 | |
| 34 | private: |
| 35 | bool m_initialized; |
| 36 | QByteArray m_buffer; |
| 37 | QAudioFormat m_format; |
| 38 | QAudioDeviceInfo m_deviceInfo; |
| 39 | QAudioOutput* m_output; |
| 40 | float m_volume; |
| 41 | |
| 42 | signals: |
| 43 | |
| 44 | public slots: |
| 45 | |
| 46 | private slots: |
| 47 | void notified(); |
| 48 | void stateChanged(QAudio::State state); |
| 49 | }; |
| 50 | |
| 51 | #endif // AUDIOOUTPUT_H |