gstreamer/gst-libs/gst/video/gstvideosink.c

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/*
* GStreamer Video sink.
*
* Copyright (C) <2003> Julien Moutte <julien@moutte.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstvideosink.h"
/* VideoSink signals and args */
enum {
HAVE_VIDEO_SIZE,
LAST_SIGNAL
};
static GstElementClass *parent_class = NULL;
static guint gst_videosink_signals[LAST_SIGNAL] = { 0 };
/* Private methods */
static void
gst_videosink_set_clock (GstElement *element, GstClock *clock)
{
GstVideoSink *videosink;
videosink = GST_VIDEOSINK (element);
videosink->clock = clock;
}
/* Initing stuff */
static void
gst_videosink_init (GstVideoSink *videosink)
{
videosink->width = 0;
videosink->height = 0;
videosink->clock = NULL;
}
static void
gst_videosink_class_init (GstVideoSinkClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gst_videosink_signals[HAVE_VIDEO_SIZE] =
g_signal_new ("have_video_size",
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstVideoSinkClass, have_video_size),
NULL, NULL,
gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2,
G_TYPE_UINT, G_TYPE_UINT);
gstelement_class->set_clock = gst_videosink_set_clock;
}
/* Public methods */
/**
* gst_video_sink_got_video_size:
* @videosink: a #GstVideoSink which received video geometry.
* @width: a width as a #gint.
* @height: a height as a #gint.
*
* This will fire an have_size signal and update the internal object's
* geometry.
*
* This function should be used by video sink developpers.
*/
void
gst_video_sink_got_video_size (GstVideoSink *videosink, gint width, gint height)
{
g_return_if_fail (videosink != NULL);
g_return_if_fail (GST_IS_VIDEOSINK (videosink));
g_signal_emit (G_OBJECT (videosink), gst_videosink_signals[HAVE_VIDEO_SIZE],
0, width, height);
}
GType
gst_videosink_get_type (void)
{
static GType videosink_type = 0;
if (!videosink_type)
{
static const GTypeInfo videosink_info = {
sizeof (GstVideoSinkClass),
NULL,
NULL,
(GClassInitFunc) gst_videosink_class_init,
NULL,
NULL,
sizeof (GstVideoSink),
0,
(GInstanceInitFunc) gst_videosink_init,
};
videosink_type = g_type_register_static (GST_TYPE_ELEMENT,
"GstVideoSink",
&videosink_info, 0);
}
return videosink_type;
}