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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
/* Video related snippets */
#include "qvideorenderercontrol.h"
#include "qmediaservice.h"
#include "qmediaplayer.h"
#include "qabstractvideosurface.h"
#include "qvideowidgetcontrol.h"
#include "qvideowindowcontrol.h"
#include "qgraphicsvideoitem.h"
#include "qmediaplaylist.h"
#include "qvideosurfaceformat.h"
#include <QFormLayout>
#include <QGraphicsView>
//! [Derived Surface]
class MyVideoSurface : public QAbstractVideoSurface
{
QList<QVideoFrame::PixelFormat> supportedPixelFormats(
QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const
{
Q_UNUSED(handleType);
// Return the formats you will support
return QList<QVideoFrame::PixelFormat>() << QVideoFrame::Format_RGB565;
}
bool present(const QVideoFrame &frame)
{
Q_UNUSED(frame);
// Handle the frame and do your processing
return true;
}
};
//! [Derived Surface]
//! [Video producer]
class MyVideoProducer : public QObject
{
Q_OBJECT
Q_PROPERTY(QAbstractVideoSurface *videoSurface READ videoSurface WRITE setVideoSurface)
public:
QAbstractVideoSurface* videoSurface() const { return m_surface; }
void setVideoSurface(QAbstractVideoSurface *surface)
{
if (m_surface != surface && m_surface && m_surface->isActive()) {
m_surface->stop();
}
m_surface = surface;
if (m_surface)
m_surface->start(m_format);
}
// ...
public slots:
void onNewVideoContentReceived(const QVideoFrame &frame)
{
if (m_surface)
m_surface->present(frame);
}
private:
QAbstractVideoSurface *m_surface;
QVideoSurfaceFormat m_format;
};
//! [Video producer]
class VideoExample : public QObject {
Q_OBJECT
public:
void VideoGraphicsItem();
void VideoRendererControl();
void VideoWidget();
void VideoWindowControl();
void VideoWidgetControl();
void VideoSurface();
private:
// Common naming
QMediaService *mediaService;
QMediaPlaylist *playlist;
QVideoWidget *videoWidget;
QWidget *widget;
QFormLayout *layout;
QAbstractVideoSurface *myVideoSurface;
QMediaPlayer *player;
QMediaContent video;
QGraphicsView *graphicsView;
};
void VideoExample::VideoRendererControl()
{
//! [Video renderer control]
QVideoRendererControl *rendererControl = mediaService->requestControl<QVideoRendererControl *>();
rendererControl->setSurface(myVideoSurface);
//! [Video renderer control]
}
void VideoExample::VideoWidget()
{
//! [Video widget]
player = new QMediaPlayer;
playlist = new QMediaPlaylist(player);
playlist->addMedia(QUrl("http://example.com/myclip1.mp4"));
playlist->addMedia(QUrl("http://example.com/myclip2.mp4"));
videoWidget = new QVideoWidget;
player->setVideoOutput(videoWidget);
videoWidget->show();
playlist->setCurrentIndex(1);
player->play();
//! [Video widget]
player->stop();
//! [Setting surface in player]
player->setVideoOutput(myVideoSurface);
//! [Setting surface in player]
}
void VideoExample::VideoSurface()
{
//! [Widget Surface]
QImage img = QImage("images/qt-logo.png").convertToFormat(QImage::Format_ARGB32);
QVideoSurfaceFormat format(img.size(), QVideoFrame::Format_ARGB32);
videoWidget = new QVideoWidget;
videoWidget->videoSurface()->start(format);
videoWidget->videoSurface()->present(img);
videoWidget->show();
//! [Widget Surface]
//! [GraphicsVideoItem Surface]
QGraphicsVideoItem *item = new QGraphicsVideoItem;
graphicsView->scene()->addItem(item);
graphicsView->show();
QImage img = QImage("images/qt-logo.png").convertToFormat(QImage::Format_ARGB32);
QVideoSurfaceFormat format(img.size(), QVideoFrame::Format_ARGB32);
item->videoSurface()->start(format);
item->videoSurface()->present(img);
//! [GraphicsVideoItem Surface]
}
void VideoExample::VideoWidgetControl()
{
//! [Video widget control]
QVideoWidgetControl *widgetControl = mediaService->requestControl<QVideoWidgetControl *>();
layout->addWidget(widgetControl->videoWidget());
//! [Video widget control]
}
void VideoExample::VideoWindowControl()
{
//! [Video window control]
QVideoWindowControl *windowControl = mediaService->requestControl<QVideoWindowControl *>();
windowControl->setWinId(widget->winId());
windowControl->setDisplayRect(widget->rect());
windowControl->setAspectRatioMode(Qt::KeepAspectRatio);
//! [Video window control]
}
void VideoExample::VideoGraphicsItem()
{
//! [Video graphics item]
player = new QMediaPlayer(this);
QGraphicsVideoItem *item = new QGraphicsVideoItem;
player->setVideoOutput(item);
graphicsView->scene()->addItem(item);
graphicsView->show();
player->setMedia(QUrl("http://example.com/myclip4.ogv"));
player->play();
//! [Video graphics item]
}
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