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39 | |
40 | #ifndef QABSTRACTVIDEOSURFACE_H |
41 | #define QABSTRACTVIDEOSURFACE_H |
42 | |
43 | #include <QtCore/qobject.h> |
44 | #include <QtMultimedia/qvideoframe.h> |
45 | |
46 | QT_BEGIN_NAMESPACE |
47 | |
48 | class QRectF; |
49 | class QVideoSurfaceFormat; |
50 | |
51 | class QAbstractVideoSurfacePrivate; |
52 | |
53 | class Q_MULTIMEDIA_EXPORT QAbstractVideoSurface : public QObject |
54 | { |
55 | Q_OBJECT |
56 | Q_PROPERTY(QSize nativeResolution READ nativeResolution NOTIFY nativeResolutionChanged) |
57 | public: |
58 | enum Error |
59 | { |
60 | NoError, |
61 | UnsupportedFormatError, |
62 | IncorrectFormatError, |
63 | StoppedError, |
64 | ResourceError |
65 | }; |
66 | |
67 | explicit QAbstractVideoSurface(QObject *parent = nullptr); |
68 | ~QAbstractVideoSurface(); |
69 | |
70 | virtual QList<QVideoFrame::PixelFormat> supportedPixelFormats( |
71 | QAbstractVideoBuffer::HandleType type = QAbstractVideoBuffer::NoHandle) const = 0; |
72 | virtual bool isFormatSupported(const QVideoSurfaceFormat &format) const; |
73 | virtual QVideoSurfaceFormat nearestFormat(const QVideoSurfaceFormat &format) const; |
74 | |
75 | QVideoSurfaceFormat surfaceFormat() const; |
76 | |
77 | QSize nativeResolution() const; |
78 | |
79 | virtual bool start(const QVideoSurfaceFormat &format); |
80 | virtual void stop(); |
81 | |
82 | bool isActive() const; |
83 | |
84 | virtual bool present(const QVideoFrame &frame) = 0; |
85 | |
86 | Error error() const; |
87 | |
88 | Q_SIGNALS: |
89 | void activeChanged(bool active); |
90 | void surfaceFormatChanged(const QVideoSurfaceFormat &format); |
91 | void supportedFormatsChanged(); |
92 | void nativeResolutionChanged(const QSize &resolution); |
93 | |
94 | protected: |
95 | void setError(Error error); |
96 | void setNativeResolution(const QSize &resolution); |
97 | |
98 | private: |
99 | Q_DECLARE_PRIVATE(QAbstractVideoSurface) |
100 | QScopedPointer<QAbstractVideoSurfacePrivate> d_ptr; |
101 | }; |
102 | |
103 | #ifndef QT_NO_DEBUG_STREAM |
104 | Q_MULTIMEDIA_EXPORT QDebug operator<<(QDebug, const QAbstractVideoSurface::Error &); |
105 | #endif |
106 | |
107 | QT_END_NAMESPACE |
108 | |
109 | Q_DECLARE_METATYPE(QAbstractVideoSurface*) |
110 | Q_DECLARE_METATYPE(QAbstractVideoSurface::Error) |
111 | |
112 | #endif |
113 |