AirTV-Qt/audiooutput.h

   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