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39
40#ifndef QAUDIODECODERCONTROL_H
41#define QAUDIODECODERCONTROL_H
42
43#include <QtMultimedia/qmediacontrol.h>
44#include <QtMultimedia/qaudiodecoder.h>
45
46#include <QtCore/qpair.h>
47
48#include <QtMultimedia/qaudiobuffer.h>
49
50QT_BEGIN_NAMESPACE
51
52class QIODevice;
53class Q_MULTIMEDIA_EXPORT QAudioDecoderControl : public QMediaControl
54{
55 Q_OBJECT
56
57public:
58 ~QAudioDecoderControl();
59
60 virtual QAudioDecoder::State state() const = 0;
61
62 virtual QString sourceFilename() const = 0;
63 virtual void setSourceFilename(const QString &fileName) = 0;
64
65 virtual QIODevice* sourceDevice() const = 0;
66 virtual void setSourceDevice(QIODevice *device) = 0;
67
68 virtual void start() = 0;
69 virtual void stop() = 0;
70
71 virtual QAudioFormat audioFormat() const = 0;
72 virtual void setAudioFormat(const QAudioFormat &format) = 0;
73
74 virtual QAudioBuffer read() = 0;
75 virtual bool bufferAvailable() const = 0;
76
77 virtual qint64 position() const = 0;
78 virtual qint64 duration() const = 0;
79
80Q_SIGNALS:
81 void stateChanged(QAudioDecoder::State newState);
82 void formatChanged(const QAudioFormat &format);
83 void sourceChanged();
84
85 void error(int error, const QString &errorString);
86
87 void bufferReady();
88 void bufferAvailableChanged(bool available);
89 void finished();
90
91 void positionChanged(qint64 position);
92 void durationChanged(qint64 duration);
93
94protected:
95 explicit QAudioDecoderControl(QObject *parent = nullptr);
96};
97
98#define QAudioDecoderControl_iid "org.qt-project.qt.audiodecodercontrol/5.0"
99Q_MEDIA_DECLARE_CONTROL(QAudioDecoderControl, QAudioDecoderControl_iid)
100
101QT_END_NAMESPACE
102
103#endif // QAUDIODECODERCONTROL_H
104