summaryrefslogtreecommitdiffstats
path: root/examples/multimedia/videographicsitem
diff options
context:
space:
mode:
Diffstat (limited to 'examples/multimedia/videographicsitem')
-rw-r--r--examples/multimedia/videographicsitem/main.cpp55
-rw-r--r--examples/multimedia/videographicsitem/videographicsitem.pro21
-rw-r--r--examples/multimedia/videographicsitem/videoitem.cpp144
-rw-r--r--examples/multimedia/videographicsitem/videoitem.h79
-rw-r--r--examples/multimedia/videographicsitem/videoplayer.cpp210
-rw-r--r--examples/multimedia/videographicsitem/videoplayer.h86
6 files changed, 595 insertions, 0 deletions
diff --git a/examples/multimedia/videographicsitem/main.cpp b/examples/multimedia/videographicsitem/main.cpp
new file mode 100644
index 0000000..3bf4c6d
--- /dev/null
+++ b/examples/multimedia/videographicsitem/main.cpp
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "videoplayer.h"
+
+#include <QtGui/QApplication>
+
+int main(int argc, char **argv)
+{
+ QApplication app(argc, argv);
+
+ VideoPlayer player;
+ player.show();
+
+ return app.exec();
+}
+
diff --git a/examples/multimedia/videographicsitem/videographicsitem.pro b/examples/multimedia/videographicsitem/videographicsitem.pro
new file mode 100644
index 0000000..7c118cc
--- /dev/null
+++ b/examples/multimedia/videographicsitem/videographicsitem.pro
@@ -0,0 +1,21 @@
+QT += multimedia
+
+contains(QT_CONFIG, opengl): QT += opengl
+
+HEADERS += videoplayer.h \
+ videoitem.h
+
+SOURCES += main.cpp \
+ videoplayer.cpp \
+ videoitem.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/multimedia/videographicsitem
+sources.files = $$SOURCES $$HEADERS $$FORMS $$RESOURCES *.pro *.png images
+sources.path = $$[QT_INSTALL_EXAMPLES]/multimedia/videographicsitem
+INSTALLS += target sources
+
+symbian {
+ TARGET.UID3 = 0xA000D7C2
+ include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri)
+}
diff --git a/examples/multimedia/videographicsitem/videoitem.cpp b/examples/multimedia/videographicsitem/videoitem.cpp
new file mode 100644
index 0000000..c95e335
--- /dev/null
+++ b/examples/multimedia/videographicsitem/videoitem.cpp
@@ -0,0 +1,144 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "videoitem.h"
+
+#include <QtMultimedia>
+
+VideoItem::VideoItem(QGraphicsItem *parent)
+ : QGraphicsItem(parent)
+ , imageFormat(QImage::Format_Invalid)
+ , framePainted(false)
+{
+}
+
+VideoItem::~VideoItem()
+{
+}
+
+QRectF VideoItem::boundingRect() const
+{
+ return QRectF(QPointF(0,0), surfaceFormat().sizeHint());
+}
+
+void VideoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+ Q_UNUSED(option);
+ Q_UNUSED(widget);
+
+ if (currentFrame.map(QAbstractVideoBuffer::ReadOnly)) {
+ const QTransform oldTransform = painter->transform();
+
+ if (surfaceFormat().scanLineDirection() == QVideoSurfaceFormat::BottomToTop) {
+ painter->scale(1, -1);
+ painter->translate(0, -boundingRect().height());
+ }
+
+ painter->drawImage(boundingRect(), QImage(
+ currentFrame.bits(),
+ imageSize.width(),
+ imageSize.height(),
+ imageFormat));
+
+ painter->setTransform(oldTransform);
+
+ framePainted = true;
+
+ currentFrame.unmap();
+ }
+}
+
+QList<QVideoFrame::PixelFormat> VideoItem::supportedPixelFormats(
+ QAbstractVideoBuffer::HandleType handleType) const
+{
+ if (handleType == QAbstractVideoBuffer::NoHandle) {
+ return QList<QVideoFrame::PixelFormat>()
+ << QVideoFrame::Format_RGB32
+ << QVideoFrame::Format_ARGB32
+ << QVideoFrame::Format_ARGB32_Premultiplied
+ << QVideoFrame::Format_RGB565
+ << QVideoFrame::Format_RGB555;
+ } else {
+ return QList<QVideoFrame::PixelFormat>();
+ }
+}
+
+bool VideoItem::start(const QVideoSurfaceFormat &format)
+{
+ if (isFormatSupported(format)) {
+ imageFormat = QVideoFrame::equivalentImageFormat(format.pixelFormat());
+ imageSize = format.frameSize();
+ framePainted = true;
+
+ QAbstractVideoSurface::start(format);
+
+ prepareGeometryChange();
+
+ return true;
+ } else {
+ return false;
+ }
+}
+
+void VideoItem::stop()
+{
+ currentFrame = QVideoFrame();
+ framePainted = false;
+
+ QAbstractVideoSurface::stop();
+}
+
+bool VideoItem::present(const QVideoFrame &frame)
+{
+ if (!framePainted) {
+ if (!isStarted())
+ setError(StoppedError);
+
+ return false;
+ } else {
+ currentFrame = frame;
+ framePainted = false;
+
+ update();
+
+ return true;
+ }
+}
diff --git a/examples/multimedia/videographicsitem/videoitem.h b/examples/multimedia/videographicsitem/videoitem.h
new file mode 100644
index 0000000..96f578a
--- /dev/null
+++ b/examples/multimedia/videographicsitem/videoitem.h
@@ -0,0 +1,79 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef VIDEOITEM_H
+#define VIDEOITEM_H
+
+#include <QtMultimedia/QAbstractVideoSurface>
+#include <QtGui/QGraphicsItem>
+
+class VideoItem
+ : public QAbstractVideoSurface,
+ public QGraphicsItem
+{
+ Q_OBJECT
+ Q_INTERFACES(QGraphicsItem)
+public:
+ explicit VideoItem(QGraphicsItem *parentItem = 0);
+ ~VideoItem();
+
+ QRectF boundingRect() const;
+ void paint(
+ QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+
+ //video surface
+ QList<QVideoFrame::PixelFormat> supportedPixelFormats(
+ QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const;
+
+ bool start(const QVideoSurfaceFormat &format);
+ void stop();
+ bool present(const QVideoFrame &frame);
+
+private:
+ QImage::Format imageFormat;
+ QSize imageSize;
+
+ QVideoFrame currentFrame;
+ bool framePainted;
+};
+
+#endif
+
diff --git a/examples/multimedia/videographicsitem/videoplayer.cpp b/examples/multimedia/videographicsitem/videoplayer.cpp
new file mode 100644
index 0000000..83644db
--- /dev/null
+++ b/examples/multimedia/videographicsitem/videoplayer.cpp
@@ -0,0 +1,210 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "videoplayer.h"
+#include "videoitem.h"
+
+#include <QtMultimedia>
+
+#ifndef QT_NO_OPENGL
+# include <QtOpenGL/QGLWidget>
+#endif
+
+VideoPlayer::VideoPlayer(QWidget *parent, Qt::WindowFlags flags)
+ : QWidget(parent, flags)
+ , videoItem(0)
+ , playButton(0)
+ , positionSlider(0)
+{
+ connect(&movie, SIGNAL(stateChanged(QMovie::MovieState)),
+ this, SLOT(movieStateChanged(QMovie::MovieState)));
+ connect(&movie, SIGNAL(frameChanged(int)),
+ this, SLOT(frameChanged(int)));
+
+ videoItem = new VideoItem;
+
+ QGraphicsScene *scene = new QGraphicsScene(this);
+ QGraphicsView *graphicsView = new QGraphicsView(scene);
+
+#ifndef QT_NO_OPENGL
+ graphicsView->setViewport(new QGLWidget);
+#endif
+
+ scene->addItem(videoItem);
+
+ QSlider *rotateSlider = new QSlider(Qt::Horizontal);
+ rotateSlider->setRange(-180, 180);
+ rotateSlider->setValue(0);
+
+ connect(rotateSlider, SIGNAL(valueChanged(int)),
+ this, SLOT(rotateVideo(int)));
+
+ QAbstractButton *openButton = new QPushButton(tr("Open..."));
+ connect(openButton, SIGNAL(clicked()), this, SLOT(openFile()));
+
+ playButton = new QPushButton;
+ playButton->setEnabled(false);
+ playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
+
+ connect(playButton, SIGNAL(clicked()),
+ this, SLOT(play()));
+
+ positionSlider = new QSlider(Qt::Horizontal);
+ positionSlider->setRange(0, 0);
+
+ connect(positionSlider, SIGNAL(sliderMoved(int)),
+ this, SLOT(setPosition(int)));
+
+ connect(&movie, SIGNAL(frameChanged(int)),
+ positionSlider, SLOT(setValue(int)));
+
+ QBoxLayout *controlLayout = new QHBoxLayout;
+ controlLayout->setMargin(0);
+ controlLayout->addWidget(openButton);
+ controlLayout->addWidget(playButton);
+ controlLayout->addWidget(positionSlider);
+
+ QBoxLayout *layout = new QVBoxLayout;
+ layout->addWidget(graphicsView);
+ layout->addWidget(rotateSlider);
+ layout->addLayout(controlLayout);
+
+ setLayout(layout);
+}
+
+VideoPlayer::~VideoPlayer()
+{
+}
+
+void VideoPlayer::openFile()
+{
+ QString fileName = QFileDialog::getOpenFileName(this, tr("Open Movie"));
+
+ if (!fileName.isEmpty()) {
+ if (videoItem->isStarted())
+ videoItem->stop();
+
+ movie.setFileName(fileName);
+
+ playButton->setEnabled(true);
+ positionSlider->setMaximum(movie.frameCount());
+
+ movie.jumpToFrame(0);
+ }
+}
+
+void VideoPlayer::play()
+{
+ switch(movie.state()) {
+ case QMovie::NotRunning:
+ movie.start();
+ break;
+ case QMovie::Paused:
+ movie.setPaused(false);
+ break;
+ case QMovie::Running:
+ movie.setPaused(true);
+ break;
+ }
+}
+
+void VideoPlayer::movieStateChanged(QMovie::MovieState state)
+{
+ switch(state) {
+ case QMovie::NotRunning:
+ case QMovie::Paused:
+ playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
+ break;
+ case QMovie::Running:
+ playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause));
+ break;
+ }
+}
+
+void VideoPlayer::frameChanged(int frame)
+{
+ if (!presentImage(movie.currentImage())) {
+ movie.stop();
+ playButton->setEnabled(false);
+ positionSlider->setMaximum(0);
+ } else {
+ positionSlider->setValue(frame);
+ }
+}
+
+void VideoPlayer::setPosition(int frame)
+{
+ movie.jumpToFrame(frame);
+}
+
+void VideoPlayer::rotateVideo(int angle)
+{
+ //rotate around the center of video element
+ qreal x = videoItem->boundingRect().width() / 2.0;
+ qreal y = videoItem->boundingRect().height() / 2.0;
+ videoItem->setTransform(QTransform().translate(x, y).rotate(angle).translate(-x, -y));
+}
+
+bool VideoPlayer::presentImage(const QImage &image)
+{
+ QVideoFrame frame(image);
+
+ if (!frame.isValid())
+ return false;
+
+ QVideoSurfaceFormat currentFormat = videoItem->surfaceFormat();
+
+ if (frame.pixelFormat() != currentFormat.pixelFormat()
+ || frame.size() != currentFormat.frameSize()) {
+ QVideoSurfaceFormat format(frame.size(), frame.pixelFormat());
+
+ if (!videoItem->start(format))
+ return false;
+ }
+
+ if (!videoItem->present(frame)) {
+ videoItem->stop();
+
+ return false;
+ } else {
+ return true;
+ }
+}
diff --git a/examples/multimedia/videographicsitem/videoplayer.h b/examples/multimedia/videographicsitem/videoplayer.h
new file mode 100644
index 0000000..8e73e4c
--- /dev/null
+++ b/examples/multimedia/videographicsitem/videoplayer.h
@@ -0,0 +1,86 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef VIDEOPLAYER_H
+#define VIDEOPLAYER_H
+
+#include <QtGui/QMovie>
+#include <QtGui/QWidget>
+
+QT_BEGIN_NAMESPACE
+class QAbstractButton;
+class QAbstractVideoSurface;
+class QSlider;
+QT_END_NAMESPACE
+
+
+class VideoItem;
+
+class VideoPlayer : public QWidget
+{
+ Q_OBJECT
+public:
+ VideoPlayer(QWidget *parent = 0, Qt::WindowFlags flags = 0);
+ ~VideoPlayer();
+
+ QSize sizeHint() const { return QSize(800, 600); }
+
+public slots:
+ void openFile();
+ void play();
+
+private slots:
+ void movieStateChanged(QMovie::MovieState state);
+ void frameChanged(int frame);
+ void setPosition(int frame);
+ void rotateVideo(int angle);
+
+private:
+ bool presentImage(const QImage &image);
+
+ QMovie movie;
+ VideoItem *videoItem;
+ QAbstractButton *playButton;
+ QSlider *positionSlider;
+};
+
+#endif
+