/usr/include/qt5/QtMultimedia/qaudioinput.h is in qtmultimedia5-dev 5.2.1-0ubuntu5.
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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 = 0);
explicit QAudioInput(const QAudioDeviceInfo &audioDeviceInfo, const QAudioFormat &format = QAudioFormat(), QObject *parent = 0);
~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
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