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39
40#ifndef QMETADATAREADERCONTROL_H
41#define QMETADATAREADERCONTROL_H
42
43#include <QtMultimedia/qmediacontrol.h>
44#include <QtMultimedia/qmediaobject.h>
45
46#include <QtMultimedia/qmediaresource.h>
47
48#include <QtMultimedia/qtmultimediaglobal.h>
49#include <QtMultimedia/qmultimedia.h>
50
51QT_BEGIN_NAMESPACE
52
53// Required for QDoc workaround
54class QString;
55
56class Q_MULTIMEDIA_EXPORT QMetaDataReaderControl : public QMediaControl
57{
58 Q_OBJECT
59public:
60 ~QMetaDataReaderControl();
61
62 virtual bool isMetaDataAvailable() const = 0;
63
64 virtual QVariant metaData(const QString &key) const = 0;
65 virtual QStringList availableMetaData() const = 0;
66
67Q_SIGNALS:
68 void metaDataChanged();
69 void metaDataChanged(const QString &key, const QVariant &value);
70
71 void metaDataAvailableChanged(bool available);
72
73protected:
74 explicit QMetaDataReaderControl(QObject *parent = nullptr);
75};
76
77#define QMetaDataReaderControl_iid "org.qt-project.qt.metadatareadercontrol/5.0"
78Q_MEDIA_DECLARE_CONTROL(QMetaDataReaderControl, QMetaDataReaderControl_iid)
79
80QT_END_NAMESPACE
81
82
83#endif // QMETADATAPROVIDER_H
84