diff options
Diffstat (limited to 'examples/videowidget')
| -rw-r--r-- | examples/videowidget/main.cpp | 53 | ||||
| -rw-r--r-- | examples/videowidget/videoplayer.cpp | 143 | ||||
| -rw-r--r-- | examples/videowidget/videoplayer.h | 77 | ||||
| -rw-r--r-- | examples/videowidget/videowidget.cpp | 114 | ||||
| -rw-r--r-- | examples/videowidget/videowidget.h | 75 | ||||
| -rw-r--r-- | examples/videowidget/videowidget.pro | 22 | ||||
| -rw-r--r-- | examples/videowidget/videowidgetsurface.cpp | 176 | ||||
| -rw-r--r-- | examples/videowidget/videowidgetsurface.h | 80 |
8 files changed, 740 insertions, 0 deletions
diff --git a/examples/videowidget/main.cpp b/examples/videowidget/main.cpp new file mode 100644 index 000000000..7165108f0 --- /dev/null +++ b/examples/videowidget/main.cpp @@ -0,0 +1,53 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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/videowidget/videoplayer.cpp b/examples/videowidget/videoplayer.cpp new file mode 100644 index 000000000..9276c9b25 --- /dev/null +++ b/examples/videowidget/videoplayer.cpp @@ -0,0 +1,143 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "videoplayer.h" + +#include "videowidget.h" + +#include <QtGui> +#include <qvideosurfaceformat.h> + +VideoPlayer::VideoPlayer(QWidget *parent) + : QWidget(parent) + , mediaPlayer(0, QMediaPlayer::VideoSurface) + , playButton(0) + , positionSlider(0) +{ + VideoWidget *videoWidget = new VideoWidget; + + 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))); + + QBoxLayout *controlLayout = new QHBoxLayout; + controlLayout->setMargin(0); + controlLayout->addWidget(openButton); + controlLayout->addWidget(playButton); + controlLayout->addWidget(positionSlider); + + QBoxLayout *layout = new QVBoxLayout; + layout->addWidget(videoWidget); + layout->addLayout(controlLayout); + + setLayout(layout); + + mediaPlayer.setVideoOutput(videoWidget->videoSurface()); + connect(&mediaPlayer, SIGNAL(stateChanged(QMediaPlayer::State)), + this, SLOT(mediaStateChanged(QMediaPlayer::State))); + connect(&mediaPlayer, SIGNAL(positionChanged(qint64)), this, SLOT(positionChanged(qint64))); + connect(&mediaPlayer, SIGNAL(durationChanged(qint64)), this, SLOT(durationChanged(qint64))); +} + +VideoPlayer::~VideoPlayer() +{ +} + +void VideoPlayer::openFile() +{ + QString fileName = QFileDialog::getOpenFileName(this, tr("Open Movie"),QDir::homePath()); + + if (!fileName.isEmpty()) { + mediaPlayer.setMedia(QUrl::fromLocalFile(fileName)); + + playButton->setEnabled(true); + } +} + +void VideoPlayer::play() +{ + switch(mediaPlayer.state()) { + case QMediaPlayer::PlayingState: + mediaPlayer.pause(); + break; + default: + mediaPlayer.play(); + break; + } +} + +void VideoPlayer::mediaStateChanged(QMediaPlayer::State state) +{ + switch(state) { + case QMediaPlayer::PlayingState: + playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause)); + break; + default: + playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); + break; + } +} + +void VideoPlayer::positionChanged(qint64 position) +{ + positionSlider->setValue(position); +} + +void VideoPlayer::durationChanged(qint64 duration) +{ + positionSlider->setRange(0, duration); +} + +void VideoPlayer::setPosition(int position) +{ + mediaPlayer.setPosition(position); +} diff --git a/examples/videowidget/videoplayer.h b/examples/videowidget/videoplayer.h new file mode 100644 index 000000000..79334a373 --- /dev/null +++ b/examples/videowidget/videoplayer.h @@ -0,0 +1,77 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef VIDEOPLAYER_H +#define VIDEOPLAYER_H + +#include <qmediaplayer.h> + +#include <QtGui/QMovie> +#include <QtGui/QWidget> + +QT_BEGIN_NAMESPACE +class QAbstractButton; +class QSlider; +QT_END_NAMESPACE + +class VideoPlayer : public QWidget +{ + Q_OBJECT +public: + VideoPlayer(QWidget *parent = 0); + ~VideoPlayer(); + +public slots: + void openFile(); + void play(); + +private slots: + void mediaStateChanged(QMediaPlayer::State state); + void positionChanged(qint64 position); + void durationChanged(qint64 duration); + void setPosition(int position); + +private: + QMediaPlayer mediaPlayer; + QAbstractButton *playButton; + QSlider *positionSlider; +}; + +#endif diff --git a/examples/videowidget/videowidget.cpp b/examples/videowidget/videowidget.cpp new file mode 100644 index 000000000..925b27d9b --- /dev/null +++ b/examples/videowidget/videowidget.cpp @@ -0,0 +1,114 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "videowidget.h" + +#include "videowidgetsurface.h" + +#include <QtGui> +#include <qvideosurfaceformat.h> + +//! [0] +VideoWidget::VideoWidget(QWidget *parent) + : QWidget(parent) + , surface(0) +{ + setAutoFillBackground(false); + setAttribute(Qt::WA_NoSystemBackground, true); + setAttribute(Qt::WA_PaintOnScreen, true); + + QPalette palette = this->palette(); + palette.setColor(QPalette::Background, Qt::black); + setPalette(palette); + + setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding); + + surface = new VideoWidgetSurface(this); +} +//! [0] + +//! [1] +VideoWidget::~VideoWidget() +{ + delete surface; +} +//! [1] + +//! [2] +QSize VideoWidget::sizeHint() const +{ + return surface->surfaceFormat().sizeHint(); +} +//! [2] + + +//! [3] +void VideoWidget::paintEvent(QPaintEvent *event) +{ + QPainter painter(this); + + if (surface->isActive()) { + const QRect videoRect = surface->videoRect(); + + if (!videoRect.contains(event->rect())) { + QRegion region = event->region(); + region.subtract(videoRect); + + QBrush brush = palette().background(); + + foreach (const QRect &rect, region.rects()) + painter.fillRect(rect, brush); + } + + surface->paint(&painter); + } else { + painter.fillRect(event->rect(), palette().background()); + } +} +//! [3] + +//! [4] +void VideoWidget::resizeEvent(QResizeEvent *event) +{ + QWidget::resizeEvent(event); + + surface->updateVideoRect(); +} +//! [4] diff --git a/examples/videowidget/videowidget.h b/examples/videowidget/videowidget.h new file mode 100644 index 000000000..3e888cfe3 --- /dev/null +++ b/examples/videowidget/videowidget.h @@ -0,0 +1,75 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef VIDEOWIDGET_H +#define VIDEOWIDGET_H + +#include "videowidgetsurface.h" + +#include <QtGui/QWidget> + +QT_BEGIN_NAMESPACE +class QAbstractVideoSurface; +QT_END_NAMESPACE + +class VideoWidgetSurface; + +//! [0] +class VideoWidget : public QWidget +{ + Q_OBJECT +public: + VideoWidget(QWidget *parent = 0); + ~VideoWidget(); + + QAbstractVideoSurface *videoSurface() const { return surface; } + + QSize sizeHint() const; + +protected: + void paintEvent(QPaintEvent *event); + void resizeEvent(QResizeEvent *event); + +private: + VideoWidgetSurface *surface; +}; +//! [0] + +#endif diff --git a/examples/videowidget/videowidget.pro b/examples/videowidget/videowidget.pro new file mode 100644 index 000000000..1ef79fcaa --- /dev/null +++ b/examples/videowidget/videowidget.pro @@ -0,0 +1,22 @@ +TEMPLATE = app +CONFIG += example + +INCLUDEPATH += ../../src/multimedia ../../src/multimedia/video +include(../mobility_examples.pri) + +CONFIG += mobility +MOBILITY = multimedia + +QMAKE_RPATHDIR += $$DESTDIR + +HEADERS = \ + videoplayer.h \ + videowidget.h \ + videowidgetsurface.h + +SOURCES = \ + main.cpp \ + videoplayer.cpp \ + videowidget.cpp \ + videowidgetsurface.cpp + diff --git a/examples/videowidget/videowidgetsurface.cpp b/examples/videowidget/videowidgetsurface.cpp new file mode 100644 index 000000000..5819f2b25 --- /dev/null +++ b/examples/videowidget/videowidgetsurface.cpp @@ -0,0 +1,176 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "videowidgetsurface.h" + +#include <QtGui> +#include <qabstractvideosurface.h> +#include <qvideosurfaceformat.h> + +VideoWidgetSurface::VideoWidgetSurface(QWidget *widget, QObject *parent) + : QAbstractVideoSurface(parent) + , widget(widget) + , imageFormat(QImage::Format_Invalid) +{ +} + +//! [0] +QList<QVideoFrame::PixelFormat> VideoWidgetSurface::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>(); + } +} +//! [0] + +//! [1] +bool VideoWidgetSurface::isFormatSupported( + const QVideoSurfaceFormat &format, QVideoSurfaceFormat *similar) const +{ + Q_UNUSED(similar); + + const QImage::Format imageFormat = QVideoFrame::imageFormatFromPixelFormat(format.pixelFormat()); + const QSize size = format.frameSize(); + + return imageFormat != QImage::Format_Invalid + && !size.isEmpty() + && format.handleType() == QAbstractVideoBuffer::NoHandle; +} +//! [1] + +//! [2] +bool VideoWidgetSurface::start(const QVideoSurfaceFormat &format) +{ + const QImage::Format imageFormat = QVideoFrame::imageFormatFromPixelFormat(format.pixelFormat()); + const QSize size = format.frameSize(); + + if (imageFormat != QImage::Format_Invalid && !size.isEmpty()) { + this->imageFormat = imageFormat; + imageSize = size; + sourceRect = format.viewport(); + + QAbstractVideoSurface::start(format); + + widget->updateGeometry(); + updateVideoRect(); + + return true; + } else { + return false; + } +} +//! [2] + +//! [3] +void VideoWidgetSurface::stop() +{ + currentFrame = QVideoFrame(); + targetRect = QRect(); + + QAbstractVideoSurface::stop(); + + widget->update(); +} +//! [3] + +//! [4] +bool VideoWidgetSurface::present(const QVideoFrame &frame) +{ + if (surfaceFormat().pixelFormat() != frame.pixelFormat() + || surfaceFormat().frameSize() != frame.size()) { + setError(IncorrectFormatError); + stop(); + + return false; + } else { + currentFrame = frame; + + widget->repaint(targetRect); + + return true; + } +} +//! [4] + +//! [5] +void VideoWidgetSurface::updateVideoRect() +{ + QSize size = surfaceFormat().sizeHint(); + size.scale(widget->size().boundedTo(size), Qt::KeepAspectRatio); + + targetRect = QRect(QPoint(0, 0), size); + targetRect.moveCenter(widget->rect().center()); +} +//! [5] + +//! [6] +void VideoWidgetSurface::paint(QPainter *painter) +{ + if (currentFrame.map(QAbstractVideoBuffer::ReadOnly)) { + const QTransform oldTransform = painter->transform(); + + if (surfaceFormat().scanLineDirection() == QVideoSurfaceFormat::BottomToTop) { + painter->scale(1, -1); + painter->translate(0, -widget->height()); + } + + QImage image( + currentFrame.bits(), + currentFrame.width(), + currentFrame.height(), + currentFrame.bytesPerLine(), + imageFormat); + + painter->drawImage(targetRect, image, sourceRect); + + painter->setTransform(oldTransform); + + currentFrame.unmap(); + } +} +//! [6] diff --git a/examples/videowidget/videowidgetsurface.h b/examples/videowidget/videowidgetsurface.h new file mode 100644 index 000000000..fa3bfce23 --- /dev/null +++ b/examples/videowidget/videowidgetsurface.h @@ -0,0 +1,80 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef VIDEOWIDGETSURFACE_H +#define VIDEOWIDGETSURFACE_H + +#include <QtCore/QRect> +#include <QtGui/QImage> +#include <qabstractvideosurface.h> +#include <qvideoframe.h> + +//! [0] +class VideoWidgetSurface : public QAbstractVideoSurface +{ + Q_OBJECT +public: + VideoWidgetSurface(QWidget *widget, QObject *parent = 0); + + QList<QVideoFrame::PixelFormat> supportedPixelFormats( + QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const; + bool isFormatSupported(const QVideoSurfaceFormat &format, QVideoSurfaceFormat *similar) const; + + bool start(const QVideoSurfaceFormat &format); + void stop(); + + bool present(const QVideoFrame &frame); + + QRect videoRect() const { return targetRect; } + void updateVideoRect(); + + void paint(QPainter *painter); + +private: + QWidget *widget; + QImage::Format imageFormat; + QRect targetRect; + QSize imageSize; + QRect sourceRect; + QVideoFrame currentFrame; +}; +//! [0] + +#endif |