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// -*- Mode: C++ -*-
#ifndef SOUNDOUT_H__
#define SOUNDOUT_H__
#include <QObject>
#include <QString>
#include <QAudioOutput>
#include <QAudioDeviceInfo>
class QAudioDeviceInfo;
// An instance of this sends audio data to a specified soundcard.
class SoundOutput
: public QObject
{
Q_OBJECT;
public:
SoundOutput ()
: m_msBuffered {0u}
, m_volume {1.0}
{
}
qreal attenuation () const;
QAudioFormat format() const;
public Q_SLOTS:
void setFormat (QAudioDeviceInfo const& device, unsigned channels, unsigned msBuffered = 0u);
void setDeviceFormat (QAudioDeviceInfo const& device, QAudioFormat const&format, unsigned channels, unsigned msBuffered = 0u);
void restart (QIODevice *);
void suspend ();
void resume ();
void reset ();
void stop ();
void setAttenuation (qreal); /* unsigned */
void resetAttenuation (); /* to zero */
Q_SIGNALS:
void error (QString message) const;
void status (QString message) const;
private:
bool audioError () const;
private Q_SLOTS:
void handleStateChanged (QAudio::State);
private:
QScopedPointer<QAudioOutput> m_stream;
QAudioFormat m_format;
unsigned m_msBuffered;
qreal m_volume;
};
#endif
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