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Diffstat (limited to 'src/imports/multimedia/qdeclarativevideooutput.cpp')
| -rw-r--r-- | src/imports/multimedia/qdeclarativevideooutput.cpp | 366 |
1 files changed, 0 insertions, 366 deletions
diff --git a/src/imports/multimedia/qdeclarativevideooutput.cpp b/src/imports/multimedia/qdeclarativevideooutput.cpp deleted file mode 100644 index 2371fdb..0000000 --- a/src/imports/multimedia/qdeclarativevideooutput.cpp +++ /dev/null @@ -1,366 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** 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. -** -** 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. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ -#include "qdeclarativevideooutput_p.h" - -#include "qsgvideonode_p.h" -#include "qsgvideonode_i420.h" -#include "qsgvideonode_rgb.h" - -#include <QtDeclarative/qquickitem.h> - -#include <QtMultimedia/QAbstractVideoSurface> -#include <QtMultimedia/qmediaservice.h> -#include <QtMultimedia/qvideorenderercontrol.h> -#include <QtMultimedia/qvideosurfaceformat.h> - - -#include <QtCore/qmetaobject.h> - -//#define DEBUG_VIDEOITEM - -class QSGVideoItemSurface : public QAbstractVideoSurface -{ -public: - QSGVideoItemSurface(QDeclarativeVideoOutput *item, QObject *parent = 0) : - QAbstractVideoSurface(parent), - m_item(item) - { - } - - ~QSGVideoItemSurface() - { - } - - QList<QVideoFrame::PixelFormat> supportedPixelFormats(QAbstractVideoBuffer::HandleType handleType) const - { - QList<QVideoFrame::PixelFormat> formats; - - foreach (QSGVideoNodeFactory* factory, m_item->m_videoNodeFactories) { - formats.append(factory->supportedPixelFormats(handleType)); - } - - return formats; - } - - bool start(const QVideoSurfaceFormat &format) - { -#ifdef DEBUG_VIDEOITEM - qDebug() << Q_FUNC_INFO << format; -#endif - - if (!supportedPixelFormats(format.handleType()).contains(format.pixelFormat())) - return false; - - return QAbstractVideoSurface::start(format); - } - - virtual bool present(const QVideoFrame &frame) - { - if (!frame.isValid()) { - qWarning() << Q_FUNC_INFO << "I'm getting bad frames here..."; - return false; - } - m_item->present(frame); - return true; - } - -private: - QDeclarativeVideoOutput *m_item; -}; - -/*! - \qmlclass VideoOutput QDeclarativeVideoOutput - \brief The VideoOutput element allows you to render video or camera viewfinder. - - \ingroup qml-multimedia - - This element is part of the \bold{QtMultimedia 4.0} module. - - \qml - import QtQuick 2.0 - import QtMultimedia 4.0 - - Rectangle { - width: 800 - height: 600 - color: "black" - - MediaPlayer { - id: player - source: "file://video.webm" - playing: true - } - - VideoOutput { - id: videoOutput - source: player - anchors.fill: parent - } - } - - \endqml - - The VideoOutput item supports untransformed, stretched, and uniformly scaled video presentation. - For a description of stretched uniformly scaled presentation, see the \l fillMode property - description. - - \sa MediaPlayer, Camera -*/ - -/*! - \internal - \class QDeclarativeVideoOutput - \brief The QDeclarativeVideoOutput class provides a video output item. -*/ - -QDeclarativeVideoOutput::QDeclarativeVideoOutput(QQuickItem *parent) : - QQuickItem(parent), - m_fillMode(PreserveAspectFit) -{ - setFlag(ItemHasContents, true); - m_surface = new QSGVideoItemSurface(this); - connect(m_surface, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat)), - this, SLOT(_q_updateNativeSize(QVideoSurfaceFormat)), Qt::QueuedConnection); - - m_videoNodeFactories.append(new QSGVideoNodeFactory_I420); - m_videoNodeFactories.append(new QSGVideoNodeFactory_RGB); -} - -QDeclarativeVideoOutput::~QDeclarativeVideoOutput() -{ - m_source.clear(); - _q_updateMediaObject(); - delete m_surface; - qDeleteAll(m_videoNodeFactories); -} - -/*! - \qmlproperty variant VideoOutput::source - - This property holds the source item providing the video frames like MediaPlayer or Camera. -*/ - -void QDeclarativeVideoOutput::setSource(QObject *source) -{ -#ifdef DEBUG_VIDEOITEM - qDebug() << Q_FUNC_INFO << source; -#endif - - if (source == m_source.data()) - return; - - if (m_source) - disconnect(0, m_source.data(), SLOT(_q_updateMediaObject())); - - m_source = source; - - if (m_source) { - const QMetaObject *metaObject = m_source.data()->metaObject(); - const QMetaProperty mediaObjectProperty = metaObject->property( - metaObject->indexOfProperty("mediaObject")); - - if (mediaObjectProperty.hasNotifySignal()) { - QMetaMethod method = mediaObjectProperty.notifySignal(); - QMetaObject::connect(m_source.data(), method.methodIndex(), - this, this->metaObject()->indexOfSlot("updateMediaObject()"), - Qt::DirectConnection, 0); - - } - } - - _q_updateMediaObject(); - emit sourceChanged(); -} - -void QDeclarativeVideoOutput::_q_updateMediaObject() -{ - QMediaObject *mediaObject = 0; - - if (m_source) - mediaObject = qobject_cast<QMediaObject*>(m_source.data()->property("mediaObject").value<QObject*>()); - -#ifdef DEBUG_VIDEOITEM - qDebug() << Q_FUNC_INFO << mediaObject; -#endif - - if (m_mediaObject.data() == mediaObject) - return; - - if (m_rendererControl) { - m_rendererControl.data()->setSurface(0); - m_service.data()->releaseControl(m_rendererControl.data()); - } - - m_mediaObject = mediaObject; - m_mediaObject.clear(); - m_service.clear(); - m_rendererControl.clear(); - - if (mediaObject) { - if (QMediaService *service = mediaObject->service()) { - if (QMediaControl *control = service->requestControl(QVideoRendererControl_iid)) { - if ((m_rendererControl = qobject_cast<QVideoRendererControl *>(control))) { - m_service = service; - m_mediaObject = mediaObject; - m_rendererControl.data()->setSurface(m_surface); - } else { - qWarning() << Q_FUNC_INFO << "Media service has no renderer control available"; - service->releaseControl(control); - } - } - } - } -} - -void QDeclarativeVideoOutput::present(const QVideoFrame &frame) -{ - m_frame = frame; - update(); -} - -/*! - \qmlproperty enumeration VideoOutput::fillMode - - Set this property to define how the video is scaled to fit the target area. - - \list - \o Stretch - the video is scaled to fit. - \o PreserveAspectFit - the video is scaled uniformly to fit without cropping - \o PreserveAspectCrop - the video is scaled uniformly to fill, cropping if necessary - \endlist - - The default fill mode is PreserveAspectFit. -*/ - -QDeclarativeVideoOutput::FillMode QDeclarativeVideoOutput::fillMode() const -{ - return m_fillMode; -} - -void QDeclarativeVideoOutput::setFillMode(FillMode mode) -{ - if (mode == m_fillMode) - return; - - m_fillMode = mode; - update(); - - emit fillModeChanged(mode); -} - -void QDeclarativeVideoOutput::_q_updateNativeSize(const QVideoSurfaceFormat &format) -{ - const QSize &size = format.sizeHint(); - if (m_nativeSize != size) { - m_nativeSize = size; - - setImplicitWidth(size.width()); - setImplicitHeight(size.height()); - } -} - -void QDeclarativeVideoOutput::_q_updateGeometry() -{ - QRectF rect(0, 0, width(), height()); - - if (m_nativeSize.isEmpty()) { - //this is necessary for item to receive the - //first paint event and configure video surface. - m_boundingRect = rect; - m_sourceRect = QRectF(0, 0, 1, 1); - } else if (m_fillMode == Stretch) { - m_boundingRect = rect; - m_sourceRect = QRectF(0, 0, 1, 1); - } else if (m_fillMode == PreserveAspectFit) { - QSizeF size = m_nativeSize; - size.scale(rect.size(), Qt::KeepAspectRatio); - - m_boundingRect = QRectF(0, 0, size.width(), size.height()); - m_boundingRect.moveCenter(rect.center()); - - m_sourceRect = QRectF(0, 0, 1, 1); - } else if (m_fillMode == PreserveAspectCrop) { - m_boundingRect = rect; - - QSizeF size = rect.size(); - size.scale(m_nativeSize, Qt::KeepAspectRatio); - - m_sourceRect = QRectF( - 0, 0, size.width() / m_nativeSize.width(), size.height() / m_nativeSize.height()); - m_sourceRect.moveCenter(QPointF(0.5, 0.5)); - } -} - -QSGNode *QDeclarativeVideoOutput::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *) -{ - QSGVideoNode *videoNode = static_cast<QSGVideoNode *>(oldNode); - - if (videoNode && videoNode->pixelFormat() != m_frame.pixelFormat()) { -#ifdef DEBUG_VIDEOITEM - qDebug() << "updatePaintNode: deleting old video node because frame format changed..."; -#endif - delete videoNode; - videoNode = 0; - } - - if (!m_frame.isValid()) { -#ifdef DEBUG_VIDEOITEM - qDebug() << "updatePaintNode: no frames yet... aborting..."; -#endif - return 0; - } - - if (videoNode == 0) { - foreach (QSGVideoNodeFactory* factory, m_videoNodeFactories) { - videoNode = factory->createNode(m_surface->surfaceFormat()); - if (videoNode) - break; - } - } - - if (videoNode == 0) - return 0; - - _q_updateGeometry(); - videoNode->setTexturedRectGeometry(m_boundingRect, m_sourceRect); - videoNode->setCurrentFrame(m_frame); - return videoNode; -} |