| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
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| 2 | // Copyright (C) 2016 Research In Motion |
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| 3 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 4 | |
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| 5 | #ifndef QQUICKVIDEOOUTPUT_P_H |
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| 6 | #define QQUICKVIDEOOUTPUT_P_H |
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| 7 | |
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| 8 | // |
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| 9 | // W A R N I N G |
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| 10 | // ------------- |
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| 11 | // |
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| 12 | // This file is not part of the Qt API. It exists purely as an |
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| 13 | // implementation detail. This header file may change from version to |
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| 14 | // version without notice, or even be removed. |
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| 15 | // |
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| 16 | // We mean it. |
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| 17 | // |
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| 18 | |
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| 19 | #include <QtCore/qrect.h> |
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| 20 | #include <QtCore/qsharedpointer.h> |
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| 21 | #include <QtQuick/qquickitem.h> |
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| 22 | #include <QtCore/qpointer.h> |
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| 23 | #include <QtCore/qmutex.h> |
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| 24 | |
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| 25 | #include <private/qtmultimediaquickglobal_p.h> |
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| 26 | #include <qvideoframe.h> |
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| 27 | #include <qvideoframeformat.h> |
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| 28 | #include <qvideosink.h> |
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| 29 | |
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| 30 | QT_BEGIN_NAMESPACE |
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| 31 | |
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| 32 | class QQuickVideoBackend; |
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| 33 | class QVideoOutputOrientationHandler; |
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| 34 | class QVideoSink; |
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| 35 | class QSGVideoNode; |
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| 36 | |
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| 37 | class QQuickVideoSink : public QVideoSink |
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| 38 | { |
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| 39 | Q_OBJECT |
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| 40 | QML_NAMED_ELEMENT(VideoSink) |
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| 41 | public: |
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| 42 | QQuickVideoSink(QObject *parent = nullptr) : QVideoSink(parent) |
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| 43 | { |
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| 44 | connect(sender: this, signal: &QVideoSink::videoFrameChanged, context: this, slot: &QQuickVideoSink::videoFrameChanged, |
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| 45 | type: Qt::DirectConnection); |
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| 46 | } |
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| 47 | |
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| 48 | Q_SIGNALS: |
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| 49 | void videoFrameChanged(); |
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| 50 | }; |
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| 51 | |
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| 52 | class Q_MULTIMEDIAQUICK_EXPORT QQuickVideoOutput : public QQuickItem |
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| 53 | { |
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| 54 | Q_OBJECT |
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| 55 | Q_DISABLE_COPY(QQuickVideoOutput) |
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| 56 | Q_PROPERTY(FillMode fillMode READ fillMode WRITE setFillMode NOTIFY fillModeChanged) |
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| 57 | Q_PROPERTY(int orientation READ orientation WRITE setOrientation NOTIFY orientationChanged) |
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| 58 | Q_PROPERTY(QRectF sourceRect READ sourceRect NOTIFY sourceRectChanged) |
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| 59 | Q_PROPERTY(QRectF contentRect READ contentRect NOTIFY contentRectChanged) |
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| 60 | Q_PROPERTY(QVideoSink* videoSink READ videoSink CONSTANT) |
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| 61 | Q_MOC_INCLUDE(qvideosink.h) |
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| 62 | Q_MOC_INCLUDE(qvideoframe.h) |
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| 63 | QML_NAMED_ELEMENT(VideoOutput) |
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| 64 | |
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| 65 | public: |
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| 66 | |
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| 67 | enum FillMode |
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| 68 | { |
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| 69 | Stretch = Qt::IgnoreAspectRatio, |
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| 70 | PreserveAspectFit = Qt::KeepAspectRatio, |
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| 71 | PreserveAspectCrop = Qt::KeepAspectRatioByExpanding |
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| 72 | }; |
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| 73 | Q_ENUM(FillMode) |
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| 74 | |
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| 75 | QQuickVideoOutput(QQuickItem *parent = 0); |
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| 76 | ~QQuickVideoOutput(); |
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| 77 | |
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| 78 | Q_INVOKABLE QVideoSink *videoSink() const; |
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| 79 | |
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| 80 | FillMode fillMode() const; |
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| 81 | void setFillMode(FillMode mode); |
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| 82 | |
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| 83 | int orientation() const; |
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| 84 | void setOrientation(int); |
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| 85 | |
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| 86 | QRectF sourceRect() const; |
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| 87 | QRectF contentRect() const; |
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| 88 | |
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| 89 | Q_SIGNALS: |
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| 90 | void sourceChanged(); |
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| 91 | void fillModeChanged(QQuickVideoOutput::FillMode); |
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| 92 | void orientationChanged(); |
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| 93 | void sourceRectChanged(); |
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| 94 | void contentRectChanged(); |
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| 95 | |
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| 96 | protected: |
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| 97 | QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override; |
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| 98 | void itemChange(ItemChange change, const ItemChangeData &changeData) override; |
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| 99 | void geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry) override; |
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| 100 | void releaseResources() override; |
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| 101 | |
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| 102 | private: |
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| 103 | QSize nativeSize() const; |
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| 104 | void updateGeometry(); |
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| 105 | QRectF adjustedViewport() const; |
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| 106 | |
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| 107 | void setFrame(const QVideoFrame &frame); |
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| 108 | |
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| 109 | void invalidateSceneGraph(); |
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| 110 | |
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| 111 | void initRhiForSink(); |
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| 112 | void updateHdr(QSGVideoNode *videoNode); |
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| 113 | |
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| 114 | private Q_SLOTS: |
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| 115 | void _q_newFrame(QSize); |
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| 116 | void _q_updateGeometry(); |
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| 117 | void _q_invalidateSceneGraph(); |
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| 118 | void _q_sceneGraphInitialized(); |
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| 119 | |
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| 120 | private: |
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| 121 | QSize m_nativeSize; |
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| 122 | |
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| 123 | bool m_geometryDirty = true; |
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| 124 | QRectF m_lastRect; // Cache of last rect to avoid recalculating geometry |
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| 125 | QRectF m_contentRect; // Destination pixel coordinates, unclipped |
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| 126 | int m_orientation = 0; |
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| 127 | QtVideo::Rotation m_frameDisplayingRotation = QtVideo::Rotation::None; |
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| 128 | Qt::AspectRatioMode m_aspectRatioMode = Qt::KeepAspectRatio; |
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| 129 | |
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| 130 | QPointer<QQuickWindow> m_window; |
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| 131 | QVideoSink *m_sink = nullptr; |
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| 132 | QVideoFrameFormat m_videoFormat; |
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| 133 | |
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| 134 | QList<QVideoFrame> m_videoFrameQueue; |
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| 135 | QVideoFrame m_frame; |
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| 136 | bool m_frameChanged = false; |
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| 137 | QMutex m_frameMutex; |
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| 138 | QRectF m_renderedRect; // Destination pixel coordinates, clipped |
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| 139 | QRectF m_sourceTextureRect; // Source texture coordinates |
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| 140 | }; |
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| 141 | |
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| 142 | QT_END_NAMESPACE |
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| 143 | |
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| 144 | #endif // QQUICKVIDEOOUTPUT_P_H |
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| 145 | |
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