Allow plugins to override the QML VideoOutput type.

Move QDeclarativeVideoOutput to the private QtMultimediaQuickTools library to make the QDeclarativeVideoOutputBackend interface implementable by a plugin. Change-Id: I763c483a1fc9ec56dc7b8be0bc71523f029a36ee Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
2013-12-05 15:38:14 +10:00
parent a52f552d42
commit 60fb11d9a2
21 changed files with 76 additions and 30 deletions
--- a/src/qtmultimediaquicktools/qdeclarativevideooutput_render_p.h
+++ b/src/qtmultimediaquicktools/qdeclarativevideooutput_render_p.h
@@ -0,0 +1,117 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Copyright (C) 2012 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDECLARATIVEVIDEOOUTPUT_RENDER_P_H
+#define QDECLARATIVEVIDEOOUTPUT_RENDER_P_H
+
+#include "qdeclarativevideooutput_backend_p.h"
+#include "qsgvideonode_i420.h"
+#include "qsgvideonode_rgb.h"
+#include "qsgvideonode_texture.h"
+
+#include <QtCore/qmutex.h>
+#include <QtMultimedia/qabstractvideosurface.h>
+
+QT_BEGIN_NAMESPACE
+
+class QSGVideoItemSurface;
+class QVideoRendererControl;
+class QOpenGLContext;
+
+class QDeclarativeVideoRendererBackend : public QDeclarativeVideoBackend
+{
+public:
+    QDeclarativeVideoRendererBackend(QDeclarativeVideoOutput *parent);
+    ~QDeclarativeVideoRendererBackend();
+
+    bool init(QMediaService *service);
+    void itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &changeData);
+    void releaseSource();
+    void releaseControl();
+    QSize nativeSize() const;
+    void updateGeometry();
+    QSGNode *updatePaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNodeData *data);
+    QAbstractVideoSurface *videoSurface() const;
+    QRectF adjustedViewport() const Q_DECL_OVERRIDE;
+    QOpenGLContext *glContext() const;
+
+    friend class QSGVideoItemSurface;
+    void present(const QVideoFrame &frame);
+    void stop();
+
+private:
+    QPointer<QVideoRendererControl> m_rendererControl;
+    QList<QSGVideoNodeFactoryInterface*> m_videoNodeFactories;
+    QSGVideoItemSurface *m_surface;
+    QOpenGLContext *m_glContext;
+    QVideoFrame m_frame;
+    bool m_frameChanged;
+    QSGVideoNodeFactory_I420 m_i420Factory;
+    QSGVideoNodeFactory_RGB m_rgbFactory;
+    QSGVideoNodeFactory_Texture m_textureFactory;
+    QMutex m_frameMutex;
+    QRectF m_renderedRect;         // Destination pixel coordinates, clipped
+    QRectF m_sourceTextureRect;    // Source texture coordinates
+};
+
+class QSGVideoItemSurface : public QAbstractVideoSurface
+{
+    Q_OBJECT
+public:
+    explicit QSGVideoItemSurface(QDeclarativeVideoRendererBackend *backend, QObject *parent = 0);
+    ~QSGVideoItemSurface();
+    QList<QVideoFrame::PixelFormat> supportedPixelFormats(QAbstractVideoBuffer::HandleType handleType) const;
+    bool start(const QVideoSurfaceFormat &format);
+    void stop();
+    bool present(const QVideoFrame &frame);
+    void scheduleOpenGLContextUpdate();
+
+private slots:
+    void updateOpenGLContext();
+
+private:
+    QDeclarativeVideoRendererBackend *m_backend;
+};
+
+QT_END_NAMESPACE
+
+#endif