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39
40
41#ifndef QAUDIOOUTPUT_H
42#define QAUDIOOUTPUT_H
43
44#include <QtCore/qiodevice.h>
45
46#include <QtMultimedia/qtmultimediaglobal.h>
47#include <QtMultimedia/qmultimedia.h>
48
49#include <QtMultimedia/qaudio.h>
50#include <QtMultimedia/qaudioformat.h>
51#include <QtMultimedia/qaudiodeviceinfo.h>
52
53
54QT_BEGIN_NAMESPACE
55
56
57
58class QAbstractAudioOutput;
59
60class Q_MULTIMEDIA_EXPORT QAudioOutput : public QObject
61{
62 Q_OBJECT
63
64public:
65 explicit QAudioOutput(const QAudioFormat &format = QAudioFormat(), QObject *parent = nullptr);
66 explicit QAudioOutput(const QAudioDeviceInfo &audioDeviceInfo, const QAudioFormat &format = QAudioFormat(), QObject *parent = nullptr);
67 ~QAudioOutput();
68
69 QAudioFormat format() const;
70
71 void start(QIODevice *device);
72 QIODevice* start();
73
74 void stop();
75 void reset();
76 void suspend();
77 void resume();
78
79 void setBufferSize(int bytes);
80 int bufferSize() const;
81
82 int bytesFree() const;
83 int periodSize() const;
84
85 void setNotifyInterval(int milliSeconds);
86 int notifyInterval() const;
87
88 qint64 processedUSecs() const;
89 qint64 elapsedUSecs() const;
90
91 QAudio::Error error() const;
92 QAudio::State state() const;
93
94 void setVolume(qreal);
95 qreal volume() const;
96
97 QString category() const;
98 void setCategory(const QString &category);
99
100Q_SIGNALS:
101 void stateChanged(QAudio::State state);
102 void notify();
103
104private:
105 Q_DISABLE_COPY(QAudioOutput)
106
107 QAbstractAudioOutput* d;
108};
109
110QT_END_NAMESPACE
111
112#endif // QAUDIOOUTPUT_H
113

source code of qtmultimedia/src/multimedia/audio/qaudiooutput.h