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/*
Copyright (C) 2010 George Kiagiadakis <kiagiadakis.george@gmail.com>
Copyright (C) 2012 Collabora Ltd. <info@collabora.com>
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 of the License, or
(at your option) any later version.
This program 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 program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "gstqwidgetvideosink.h"
#include "qwidgetvideosinkdelegate.h"
DEFINE_TYPE(GstQWidgetVideoSink, GST_TYPE_QT_VIDEO_SINK_BASE)
//------------------------------
void GstQWidgetVideoSink::base_init(gpointer gclass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS(gclass);
gst_element_class_set_details_simple(element_class, "QWidget video sink", "Sink/Video",
"A video sink that draws on a QWidget using QPainter",
"George Kiagiadakis <george.kiagiadakis@collabora.com>");
}
void GstQWidgetVideoSink::class_init(gpointer g_class, gpointer class_data)
{
Q_UNUSED(class_data);
GObjectClass *gobject_class = G_OBJECT_CLASS(g_class);
gobject_class->set_property = GstQWidgetVideoSink::set_property;
gobject_class->get_property = GstQWidgetVideoSink::get_property;
/**
* GstQWidgetVideoSink::widget
*
* This property holds a pointer to the QWidget on which the sink will paint the video.
* You can set this property at any time, even if the element is in PLAYING
* state. You can also set this property to NULL at any time to release
* the widget. In this case, qwidgetvideosink will behave like a fakesink,
* i.e. it will silently drop all the frames that it receives. It is also safe
* to delete the widget that has been set as this property; the sink will be
* signaled and this property will automatically be set to NULL.
**/
g_object_class_install_property(gobject_class, PROP_WIDGET,
g_param_spec_pointer("widget", "Widget",
"The widget on which this element will paint the video",
static_cast<GParamFlags>(G_PARAM_READWRITE)));
}
void GstQWidgetVideoSink::init(GTypeInstance *instance, gpointer g_class)
{
Q_UNUSED(g_class);
GstQtVideoSinkBase *sinkBase = GST_QT_VIDEO_SINK_BASE(instance);
sinkBase->delegate = new QWidgetVideoSinkDelegate(sinkBase);
}
void GstQWidgetVideoSink::set_property(GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
GstQtVideoSinkBase *sinkBase = GST_QT_VIDEO_SINK_BASE(object);
QWidgetVideoSinkDelegate *delegate = static_cast<QWidgetVideoSinkDelegate*>(sinkBase->delegate);
switch (prop_id) {
case PROP_WIDGET:
delegate->setWidget(static_cast<QWidget*>(g_value_get_pointer(value)));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
void GstQWidgetVideoSink::get_property(GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
GstQtVideoSinkBase *sinkBase = GST_QT_VIDEO_SINK_BASE(object);
QWidgetVideoSinkDelegate *delegate = static_cast<QWidgetVideoSinkDelegate*>(sinkBase->delegate);
switch (prop_id) {
case PROP_WIDGET:
g_value_set_pointer(value, delegate->widget());
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
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