dcbbad869e
Change copyrights and license headers from Nokia to Digia Change-Id: Id77334cfb15de096941c88e32d04ca07b4eb4709 Reviewed-by: Janne Anttila <janne.anttila@digia.com> Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com> Reviewed-by: Lars Knoll <lars.knoll@digia.com>
353 lines
10 KiB
C++
353 lines
10 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qgstreamervideowidget_p.h"
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#include <private/qgstutils_p.h>
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#include <QtCore/qcoreevent.h>
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#include <QtCore/qdebug.h>
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#include <QtWidgets/qapplication.h>
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#include <QtGui/qpainter.h>
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#ifdef Q_WS_X11
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# include <X11/Xlib.h>
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#endif
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#include <gst/gst.h>
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#include <gst/interfaces/xoverlay.h>
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#include <gst/interfaces/propertyprobe.h>
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QT_BEGIN_NAMESPACE
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class QGstreamerVideoWidget : public QWidget
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{
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public:
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QGstreamerVideoWidget(QWidget *parent = 0)
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:QWidget(parent)
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{
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setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
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QPalette palette;
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palette.setColor(QPalette::Background, Qt::black);
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setPalette(palette);
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}
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virtual ~QGstreamerVideoWidget() {}
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QSize sizeHint() const
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{
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return m_nativeSize;
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}
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void setNativeSize( const QSize &size)
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{
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if (size != m_nativeSize) {
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m_nativeSize = size;
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if (size.isEmpty())
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setMinimumSize(0,0);
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else
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setMinimumSize(160,120);
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updateGeometry();
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}
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}
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protected:
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void paintEvent(QPaintEvent *)
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{
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QPainter painter(this);
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painter.fillRect(rect(), palette().background());
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}
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QSize m_nativeSize;
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};
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QGstreamerVideoWidgetControl::QGstreamerVideoWidgetControl(QObject *parent)
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: QVideoWidgetControl(parent)
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, m_videoSink(0)
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, m_widget(0)
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, m_fullScreen(false)
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{
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}
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QGstreamerVideoWidgetControl::~QGstreamerVideoWidgetControl()
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{
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if (m_videoSink)
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gst_object_unref(GST_OBJECT(m_videoSink));
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delete m_widget;
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}
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void QGstreamerVideoWidgetControl::createVideoWidget()
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{
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if (m_widget)
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return;
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m_widget = new QGstreamerVideoWidget;
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m_widget->installEventFilter(this);
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m_windowId = m_widget->winId();
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m_videoSink = gst_element_factory_make ("xvimagesink", NULL);
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if (m_videoSink) {
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// Check if the xv sink is usable
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if (gst_element_set_state(m_videoSink, GST_STATE_READY) != GST_STATE_CHANGE_SUCCESS) {
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gst_object_unref(GST_OBJECT(m_videoSink));
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m_videoSink = 0;
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} else {
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gst_element_set_state(m_videoSink, GST_STATE_NULL);
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g_object_set(G_OBJECT(m_videoSink), "force-aspect-ratio", 1, (const char*)NULL);
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}
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}
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if (!m_videoSink)
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m_videoSink = gst_element_factory_make ("ximagesink", NULL);
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gst_object_ref (GST_OBJECT (m_videoSink)); //Take ownership
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gst_object_sink (GST_OBJECT (m_videoSink));
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}
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GstElement *QGstreamerVideoWidgetControl::videoSink()
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{
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createVideoWidget();
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return m_videoSink;
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}
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bool QGstreamerVideoWidgetControl::eventFilter(QObject *object, QEvent *e)
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{
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if (m_widget && object == m_widget) {
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if (e->type() == QEvent::ParentChange || e->type() == QEvent::Show) {
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WId newWId = m_widget->winId();
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if (newWId != m_windowId) {
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m_windowId = newWId;
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setOverlay();
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}
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}
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if (e->type() == QEvent::Show) {
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// Setting these values ensures smooth resizing since it
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// will prevent the system from clearing the background
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m_widget->setAttribute(Qt::WA_NoSystemBackground, true);
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} else if (e->type() == QEvent::Resize) {
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// This is a workaround for missing background repaints
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// when reducing window size
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windowExposed();
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}
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}
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return false;
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}
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bool QGstreamerVideoWidgetControl::processSyncMessage(const QGstreamerMessage &message)
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{
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GstMessage* gm = message.rawMessage();
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if (gm && (GST_MESSAGE_TYPE(gm) == GST_MESSAGE_ELEMENT) &&
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gst_structure_has_name(gm->structure, "prepare-xwindow-id")) {
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setOverlay();
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QMetaObject::invokeMethod(this, "updateNativeVideoSize", Qt::QueuedConnection);
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return true;
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}
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return false;
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}
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bool QGstreamerVideoWidgetControl::processBusMessage(const QGstreamerMessage &message)
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{
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GstMessage* gm = message.rawMessage();
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if (GST_MESSAGE_TYPE(gm) == GST_MESSAGE_STATE_CHANGED &&
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GST_MESSAGE_SRC(gm) == GST_OBJECT_CAST(m_videoSink)) {
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GstState oldState;
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GstState newState;
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gst_message_parse_state_changed(gm, &oldState, &newState, 0);
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if (oldState == GST_STATE_READY && newState == GST_STATE_PAUSED)
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updateNativeVideoSize();
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}
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return false;
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}
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void QGstreamerVideoWidgetControl::setOverlay()
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{
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if (m_videoSink && GST_IS_X_OVERLAY(m_videoSink)) {
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gst_x_overlay_set_xwindow_id(GST_X_OVERLAY(m_videoSink), m_windowId);
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}
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}
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void QGstreamerVideoWidgetControl::updateNativeVideoSize()
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{
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if (m_videoSink) {
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//find video native size to update video widget size hint
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GstPad *pad = gst_element_get_static_pad(m_videoSink,"sink");
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GstCaps *caps = gst_pad_get_negotiated_caps(pad);
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if (caps) {
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m_widget->setNativeSize(QGstUtils::capsCorrectedResolution(caps));
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gst_caps_unref(caps);
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}
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} else {
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if (m_widget)
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m_widget->setNativeSize(QSize());
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}
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}
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void QGstreamerVideoWidgetControl::windowExposed()
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{
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if (m_videoSink && GST_IS_X_OVERLAY(m_videoSink))
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gst_x_overlay_expose(GST_X_OVERLAY(m_videoSink));
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}
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QWidget *QGstreamerVideoWidgetControl::videoWidget()
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{
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createVideoWidget();
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return m_widget;
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}
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Qt::AspectRatioMode QGstreamerVideoWidgetControl::aspectRatioMode() const
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{
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return m_aspectRatioMode;
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}
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void QGstreamerVideoWidgetControl::setAspectRatioMode(Qt::AspectRatioMode mode)
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{
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if (m_videoSink) {
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g_object_set(G_OBJECT(m_videoSink),
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"force-aspect-ratio",
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(mode == Qt::KeepAspectRatio),
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(const char*)NULL);
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}
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m_aspectRatioMode = mode;
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}
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bool QGstreamerVideoWidgetControl::isFullScreen() const
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{
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return m_fullScreen;
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}
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void QGstreamerVideoWidgetControl::setFullScreen(bool fullScreen)
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{
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emit fullScreenChanged(m_fullScreen = fullScreen);
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}
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int QGstreamerVideoWidgetControl::brightness() const
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{
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int brightness = 0;
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if (m_videoSink && g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "brightness"))
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g_object_get(G_OBJECT(m_videoSink), "brightness", &brightness, NULL);
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return brightness / 10;
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}
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void QGstreamerVideoWidgetControl::setBrightness(int brightness)
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{
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if (m_videoSink && g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "brightness")) {
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g_object_set(G_OBJECT(m_videoSink), "brightness", brightness * 10, NULL);
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emit brightnessChanged(brightness);
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}
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}
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int QGstreamerVideoWidgetControl::contrast() const
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{
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int contrast = 0;
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if (m_videoSink && g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "contrast"))
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g_object_get(G_OBJECT(m_videoSink), "contrast", &contrast, NULL);
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return contrast / 10;
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}
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void QGstreamerVideoWidgetControl::setContrast(int contrast)
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{
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if (m_videoSink && g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "contrast")) {
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g_object_set(G_OBJECT(m_videoSink), "contrast", contrast * 10, NULL);
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emit contrastChanged(contrast);
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}
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}
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int QGstreamerVideoWidgetControl::hue() const
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{
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int hue = 0;
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if (m_videoSink && g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "hue"))
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g_object_get(G_OBJECT(m_videoSink), "hue", &hue, NULL);
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return hue / 10;
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}
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void QGstreamerVideoWidgetControl::setHue(int hue)
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{
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if (m_videoSink && g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "hue")) {
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g_object_set(G_OBJECT(m_videoSink), "hue", hue * 10, NULL);
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emit hueChanged(hue);
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}
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}
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int QGstreamerVideoWidgetControl::saturation() const
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{
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int saturation = 0;
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if (m_videoSink && g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "saturation"))
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g_object_get(G_OBJECT(m_videoSink), "saturation", &saturation, NULL);
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return saturation / 10;
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}
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void QGstreamerVideoWidgetControl::setSaturation(int saturation)
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{
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if (m_videoSink && g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "saturation")) {
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g_object_set(G_OBJECT(m_videoSink), "saturation", saturation * 10, NULL);
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emit saturationChanged(saturation);
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}
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}
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QT_END_NAMESPACE
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