| /* This file is part of the KDE project. |
| |
| Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
| |
| This library is free software: you can redistribute it and/or modify |
| it under the terms of the GNU Lesser General Public License as published by |
| the Free Software Foundation, either version 2.1 or 3 of the License. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with this library. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <QtGui/QPainter> |
| #include <gst/gst.h> |
| #include "common.h" |
| #include "message.h" |
| #include "mediaobject.h" |
| #include "qwidgetvideosink.h" |
| #include "widgetrenderer.h" |
| #include "qrgb.h" |
| |
| // support old OpenGL installations (1.2) |
| // assume that if TEXTURE0 isn't defined, none are |
| #ifndef GL_TEXTURE0 |
| # define GL_TEXTURE0 0x84C0 |
| # define GL_TEXTURE1 0x84C1 |
| # define GL_TEXTURE2 0x84C2 |
| #endif |
| |
| #ifndef QT_NO_PHONON_VIDEO |
| QT_BEGIN_NAMESPACE |
| |
| static void frameRendered() |
| { |
| static QString displayFps = qgetenv("PHONON_GST_FPS"); |
| if (displayFps.isEmpty()) |
| return; |
| |
| static int frames = 0; |
| static QTime lastTime = QTime::currentTime(); |
| QTime time = QTime::currentTime(); |
| |
| int delta = lastTime.msecsTo(time); |
| if (delta > 2000) { |
| printf("FPS: %f\n", 1000.0 * frames / qreal(delta)); |
| lastTime = time; |
| frames = 0; |
| } |
| |
| ++frames; |
| } |
| |
| namespace Phonon |
| { |
| namespace Gstreamer |
| { |
| |
| WidgetRenderer::WidgetRenderer(VideoWidget *videoWidget) |
| : AbstractRenderer(videoWidget) |
| , m_width(0) |
| , m_height(0) |
| { |
| videoWidget->backend()->logMessage("Creating QWidget renderer"); |
| if ((m_videoSink = GST_ELEMENT(g_object_new(get_type_RGB(), NULL)))) { |
| gst_object_ref (GST_OBJECT (m_videoSink)); //Take ownership |
| gst_object_sink (GST_OBJECT (m_videoSink)); |
| |
| QWidgetVideoSinkBase* sink = reinterpret_cast<QWidgetVideoSinkBase*>(m_videoSink); |
| // Let the videosink know which widget to direct frame updates to |
| sink->renderWidget = videoWidget; |
| } |
| |
| // Clear the background with black by default |
| QPalette palette; |
| palette.setColor(QPalette::Background, Qt::black); |
| m_videoWidget->setPalette(palette); |
| m_videoWidget->setAutoFillBackground(true); |
| m_videoWidget->setAttribute(Qt::WA_NoSystemBackground, false); |
| m_videoWidget->setAttribute(Qt::WA_PaintOnScreen, false); |
| } |
| |
| void WidgetRenderer::setNextFrame(const QByteArray &array, int w, int h) |
| { |
| if (m_videoWidget->root()->state() == Phonon::LoadingState) |
| return; |
| |
| m_frame = QImage(); |
| { |
| m_frame = QImage((uchar *)array.constData(), w, h, QImage::Format_RGB32); |
| } |
| |
| m_array = array; |
| m_width = w; |
| m_height = h; |
| |
| m_videoWidget->update(); |
| } |
| |
| void WidgetRenderer::handleMediaNodeEvent(const MediaNodeEvent *event) |
| { |
| switch (event->type()) { |
| case MediaNodeEvent::SourceChanged: |
| { |
| clearFrame(); |
| break; |
| } |
| default: |
| break; |
| } |
| } |
| |
| void WidgetRenderer::clearFrame() |
| { |
| m_frame = QImage(); |
| m_array = QByteArray(); |
| m_videoWidget->update(); |
| } |
| |
| const QImage &WidgetRenderer::currentFrame() const |
| { |
| return m_frame; |
| } |
| |
| void WidgetRenderer::handlePaint(QPaintEvent *event) |
| { |
| Q_UNUSED(event); |
| QPainter painter(m_videoWidget); |
| m_drawFrameRect = m_videoWidget->calculateDrawFrameRect(); |
| painter.drawImage(drawFrameRect(), currentFrame()); |
| frameRendered(); |
| } |
| |
| bool WidgetRenderer::eventFilter(QEvent * event) |
| { |
| if (event->type() == QEvent::User) { |
| NewFrameEvent *frameEvent= static_cast <NewFrameEvent *>(event); |
| setNextFrame(frameEvent->frame, frameEvent->width, frameEvent->height); |
| return true; |
| } |
| return false; |
| } |
| |
| } |
| } //namespace Phonon::Gstreamer |
| |
| QT_END_NAMESPACE |
| #endif //QT_NO_PHONON_VIDEO |