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| 1 | /**************************************************************************** |
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| 2 | ** |
| 3 | ** Copyright (C) 2016 The Qt Company Ltd. |
| 4 | ** Contact: https://www.qt.io/licensing/ |
| 5 | ** |
| 6 | ** This file is part of the Qt Toolkit. |
| 7 | ** |
| 8 | ** $QT_BEGIN_LICENSE:LGPL$ |
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| 15 | ** information use the contact form at https://www.qt.io/contact-us. |
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| 17 | ** GNU Lesser General Public License Usage |
| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
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| 20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
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| 22 | ** ensure the GNU Lesser General Public License version 3 requirements |
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| 24 | ** |
| 25 | ** GNU General Public License Usage |
| 26 | ** Alternatively, this file may be used under the terms of the GNU |
| 27 | ** General Public License version 2.0 or (at your option) the GNU General |
| 28 | ** Public license version 3 or any later version approved by the KDE Free |
| 29 | ** Qt Foundation. The licenses are as published by the Free Software |
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| 34 | ** https://www.gnu.org/licenses/gpl-3.0.html. |
| 35 | ** |
| 36 | ** $QT_END_LICENSE$ |
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| 38 | ****************************************************************************/ |
| 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 | |
| 51 | QT_BEGIN_NAMESPACE |
| 52 | |
| 53 | // Required for QDoc workaround |
| 54 | class QString; |
| 55 | |
| 56 | class Q_MULTIMEDIA_EXPORT QMetaDataReaderControl : public QMediaControl |
| 57 | { |
| 58 | Q_OBJECT |
| 59 | public: |
| 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 | |
| 67 | Q_SIGNALS: |
| 68 | void metaDataChanged(); |
| 69 | void metaDataChanged(const QString &key, const QVariant &value); |
| 70 | |
| 71 | void metaDataAvailableChanged(bool available); |
| 72 | |
| 73 | protected: |
| 74 | explicit QMetaDataReaderControl(QObject *parent = nullptr); |
| 75 | }; |
| 76 | |
| 77 | #define QMetaDataReaderControl_iid "org.qt-project.qt.metadatareadercontrol/5.0" |
| 78 | Q_MEDIA_DECLARE_CONTROL(QMetaDataReaderControl, QMetaDataReaderControl_iid) |
| 79 | |
| 80 | QT_END_NAMESPACE |
| 81 | |
| 82 | |
| 83 | #endif // QMETADATAPROVIDER_H |
| 84 |
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