This slightly fuller example program shows how to instantiate the renderer then configure its GStreamer playbin element and connect it to a network interface, rendering the content in a full-screen X window.
/*
* Copyright (C) 2012 Openismus GmbH.
*
* Author: Jens Georg <jensg@openismus.com>
*
* This file is part of Rygel.
*
* Rygel 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 of the License, or
* (at your option) any later version.
*
* Rygel 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, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/*
* Demo application for librygel-renderer-gst.
*
* Creates a simple stand-alone UPnP renderer that renders any visual content
* fullscreen.
*
* Usage:
* standalone-renderer [<network device>]
*
* If no network device is given on the commandline, the program falls back to
* eth0.
*
* To do anything useful, another UPnP server + UPnP controller is necessary
* to tell it which media file to show.
*/
#include <gst/video/videooverlay.h>
#include <gdk/gdkx.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include "rygel-renderer-gst.h"
#include "rygel-core.h"
struct _MainData {
GtkWindow *window;
GtkWidget *video;
GstElement *playbin;
};
typedef struct _MainData MainData;
static void on_realize (GtkWidget *widget, gpointer user_data)
{
GdkWindow *window;
guintptr window_handle;
MainData *data = (MainData *) user_data;
window = gtk_widget_get_window (widget);
if (!gdk_window_ensure_native (window))
g_error ("Could not create native window for overlay");
window_handle = GDK_WINDOW_XID (window);
gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (data->playbin),
window_handle);
}
static gboolean on_draw (GtkWidget *widget, cairo_t *cr, gpointer user_data)
{
MainData *data = (MainData *) user_data;
GstState state;
gst_element_get_state (data->playbin, &state, NULL, GST_CLOCK_TIME_NONE);
if (state < GST_STATE_PAUSED) {
gint width, height;
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
}
}
static gboolean on_key_released (GtkWidget *widget,
GdkEvent *event,
gpointer user_data)
{
GdkEventKey *key_event = (GdkEventKey *) event;
switch (key_event->keyval) {
case GDK_KEY_Escape:
case GDK_KEY_q:
case GDK_KEY_Q:
gtk_main_quit ();
return TRUE;
default:
return FALSE;
}
}
int main (int argc, char *argv[])
{
RygelPlaybinRenderer *renderer;
GError *error = NULL;
GMainLoop *loop;
MainData data;
GdkCursor *cursor;
gtk_init (&argc, &argv);
gst_init (&argc, &argv);
g_set_application_name ("Rygel-Fullscreen-Renderer");
renderer = rygel_playbin_renderer_new ("LibRygel renderer demo");
data.playbin = rygel_playbin_renderer_get_playbin (renderer);
data.window = GTK_WINDOW (gtk_window_new (GTK_WINDOW_TOPLEVEL));
data.video = gtk_drawing_area_new ();
gtk_widget_set_double_buffered (data.video, FALSE);
gtk_container_add (GTK_CONTAINER (data.window), data.video);
g_signal_connect (data.video, "realize", G_CALLBACK (on_realize), &data);
gtk_widget_add_events (data.video,
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
gtk_widget_set_can_focus (data.video, TRUE);
gtk_widget_grab_focus (data.video);
g_signal_connect (data.video,
"draw",
G_CALLBACK (on_draw),
&data);
g_signal_connect (data.video,
"key-release-event",
G_CALLBACK (on_key_released),
&data);
gtk_window_fullscreen (data.window);
gtk_widget_show_all (GTK_WIDGET (data.window));
cursor = gdk_cursor_new_for_display (gtk_widget_get_display (data.video),
GDK_BLANK_CURSOR);
gdk_window_set_cursor (gtk_widget_get_window (data.video), cursor);
if (argc >= 2) {
rygel_media_device_add_interface (RYGEL_MEDIA_DEVICE (renderer), argv[1]);
} else {
rygel_media_device_add_interface (RYGEL_MEDIA_DEVICE (renderer), "eth0");
}
gtk_main ();
gtk_widget_hide (GTK_WIDGET (data.window));
g_object_unref (renderer);
return 0;
}