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  #ifndef QAUDIOINPUT_H
  #define QAUDIOINPUT_H
  
  #include <QtCore/qiodevice.h>
  
  #include <QtMultimedia/qtmultimediadefs.h>
  #include <QtMultimedia/qmultimedia.h>
  
  #include <QtMultimedia/qaudio.h>
  #include <QtMultimedia/qaudioformat.h>
  #include <QtMultimedia/qaudiodeviceinfo.h>
  
  
  QT_BEGIN_NAMESPACE
  
  
  
  class QAbstractAudioInput;
  
  class Q_MULTIMEDIA_EXPORT QAudioInput : public QObject
  {
      Q_OBJECT
  
  public:
      explicit QAudioInput(const QAudioFormat &format = QAudioFormat(), QObject *parent = Q_NULLPTR);
      explicit QAudioInput(const QAudioDeviceInfo &audioDeviceInfo, const QAudioFormat &format = QAudioFormat(), QObject *parent = Q_NULLPTR);
      ~QAudioInput();
  
      QAudioFormat format() const;
  
      void start(QIODevice *device);
      QIODevice* start();
  
      void stop();
      void reset();
      void suspend();
      void resume();
  
      void setBufferSize(int bytes);
      int bufferSize() const;
  
      int bytesReady() const;
      int periodSize() const;
  
      void setNotifyInterval(int milliSeconds);
      int notifyInterval() const;
  
      void setVolume(qreal volume);
      qreal volume() const;
  
      qint64 processedUSecs() const;
      qint64 elapsedUSecs() const;
  
      QAudio::Error error() const;
      QAudio::State state() const;
  
  Q_SIGNALS:
      void stateChanged(QAudio::State);
      void notify();
  
  private:
      Q_DISABLE_COPY(QAudioInput)
  
      QAbstractAudioInput* d;
  };
  
  QT_END_NAMESPACE
  
  #endif // QAUDIOINPUT_H
  