mirror of https://github.com/saitohirga/WSJT-X.git
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
#ifndef SOUNDOUT_H__
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#define SOUNDOUT_H__
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#include <QObject>
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#include <QString>
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#include <QAudioOutput>
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#include <QAudioDeviceInfo>
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class QAudioDeviceInfo;
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class QAudioDeviceInfo;
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// An instance of this sends audio data to a specified soundcard.
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class SoundOutput : public QObject
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{
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Q_OBJECT;
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Q_PROPERTY(bool running READ isRunning);
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Q_PROPERTY(unsigned attenuation READ attenuation WRITE setAttenuation RESET resetAttenuation);
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private:
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Q_DISABLE_COPY (SoundOutput);
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public:
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SoundOutput (QIODevice * source);
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~SoundOutput ();
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bool isRunning() const {return m_active;}
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qreal attenuation () const;
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private Q_SLOTS:
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/* private because we expect to run in a thread and don't want direct
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C++ calls made, instead they must be invoked via the Qt
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signal/slot mechanism which is thread safe */
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void startStream (QAudioDeviceInfo const& device, unsigned channels);
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void suspend ();
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void resume ();
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void stopStream ();
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void setAttenuation (qreal); /* unsigned */
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void resetAttenuation (); /* to zero */
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Q_SIGNALS:
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void error (QString message) const;
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void status (QString message) const;
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private:
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bool audioError () const;
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private Q_SLOTS:
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void handleStateChanged (QAudio::State);
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private:
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QScopedPointer<QAudioOutput> m_stream;
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QIODevice * m_source;
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bool volatile m_active;
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QAudioDeviceInfo m_currentDevice;
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qreal m_volume;
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};
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#endif
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