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Diffstat (limited to 'src/gsttools/qgstreamervideooverlay.cpp')
| -rw-r--r-- | src/gsttools/qgstreamervideooverlay.cpp | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/src/gsttools/qgstreamervideooverlay.cpp b/src/gsttools/qgstreamervideooverlay.cpp new file mode 100644 index 000000000..5b8030479 --- /dev/null +++ b/src/gsttools/qgstreamervideooverlay.cpp @@ -0,0 +1,228 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** 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 "qgstreamervideooverlay_p.h" +#include <private/qvideosurfacegstsink_p.h> + +#include <qvideosurfaceformat.h> + +#include <qx11videosurface_p.h> + +QGstreamerVideoOverlay::QGstreamerVideoOverlay(QObject *parent) + : QVideoWindowControl(parent) + , m_surface(new QX11VideoSurface) + , m_videoSink(reinterpret_cast<GstElement*>(QVideoSurfaceGstSink::createSink(m_surface))) + , m_aspectRatioMode(Qt::KeepAspectRatio) + , m_fullScreen(false) +{ + if (m_videoSink) { + gst_object_ref(GST_OBJECT(m_videoSink)); //Take ownership + gst_object_sink(GST_OBJECT(m_videoSink)); + } + + connect(m_surface, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat)), + this, SLOT(surfaceFormatChanged())); +} + +QGstreamerVideoOverlay::~QGstreamerVideoOverlay() +{ + if (m_videoSink) + gst_object_unref(GST_OBJECT(m_videoSink)); + + delete m_surface; +} + +WId QGstreamerVideoOverlay::winId() const +{ + return m_surface->winId(); +} + +void QGstreamerVideoOverlay::setWinId(WId id) +{ + bool wasReady = isReady(); + m_surface->setWinId(id); + + if (isReady() != wasReady) + emit readyChanged(!wasReady); +} + +QRect QGstreamerVideoOverlay::displayRect() const +{ + return m_displayRect; +} + +void QGstreamerVideoOverlay::setDisplayRect(const QRect &rect) +{ + m_displayRect = rect; + + setScaledDisplayRect(); +} + +Qt::AspectRatioMode QGstreamerVideoOverlay::aspectRatioMode() const +{ + return m_aspectRatioMode; +} + +void QGstreamerVideoOverlay::setAspectRatioMode(Qt::AspectRatioMode mode) +{ + m_aspectRatioMode = mode; + + setScaledDisplayRect(); +} + +void QGstreamerVideoOverlay::repaint() +{ +} + +int QGstreamerVideoOverlay::brightness() const +{ + return m_surface->brightness(); +} + +void QGstreamerVideoOverlay::setBrightness(int brightness) +{ + m_surface->setBrightness(brightness); + + emit brightnessChanged(m_surface->brightness()); +} + +int QGstreamerVideoOverlay::contrast() const +{ + return m_surface->contrast(); +} + +void QGstreamerVideoOverlay::setContrast(int contrast) +{ + m_surface->setContrast(contrast); + + emit contrastChanged(m_surface->contrast()); +} + +int QGstreamerVideoOverlay::hue() const +{ + return m_surface->hue(); +} + +void QGstreamerVideoOverlay::setHue(int hue) +{ + m_surface->setHue(hue); + + emit hueChanged(m_surface->hue()); +} + +int QGstreamerVideoOverlay::saturation() const +{ + return m_surface->saturation(); +} + +void QGstreamerVideoOverlay::setSaturation(int saturation) +{ + m_surface->setSaturation(saturation); + + emit saturationChanged(m_surface->saturation()); +} + +bool QGstreamerVideoOverlay::isFullScreen() const +{ + return m_fullScreen; +} + +void QGstreamerVideoOverlay::setFullScreen(bool fullScreen) +{ + emit fullScreenChanged(m_fullScreen = fullScreen); +} + +QSize QGstreamerVideoOverlay::nativeSize() const +{ + return m_surface->surfaceFormat().sizeHint(); +} + +QAbstractVideoSurface *QGstreamerVideoOverlay::surface() const +{ + return m_surface; +} + +GstElement *QGstreamerVideoOverlay::videoSink() +{ + return m_videoSink; +} + +void QGstreamerVideoOverlay::surfaceFormatChanged() +{ + setScaledDisplayRect(); + + emit nativeSizeChanged(); +} + +void QGstreamerVideoOverlay::setScaledDisplayRect() +{ + QRect formatViewport = m_surface->surfaceFormat().viewport(); + + switch (m_aspectRatioMode) { + case Qt::KeepAspectRatio: + { + QSize size = m_surface->surfaceFormat().sizeHint(); + size.scale(m_displayRect.size(), Qt::KeepAspectRatio); + + QRect rect(QPoint(0, 0), size); + rect.moveCenter(m_displayRect.center()); + + m_surface->setDisplayRect(rect); + m_surface->setViewport(formatViewport); + } + break; + case Qt::IgnoreAspectRatio: + m_surface->setDisplayRect(m_displayRect); + m_surface->setViewport(formatViewport); + break; + case Qt::KeepAspectRatioByExpanding: + { + QSize size = m_displayRect.size(); + size.scale(m_surface->surfaceFormat().sizeHint(), Qt::KeepAspectRatio); + + QRect viewport(QPoint(0, 0), size); + viewport.moveCenter(formatViewport.center()); + m_surface->setDisplayRect(m_displayRect); + m_surface->setViewport(viewport); + } + break; + }; +} |