mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-13 11:56:35 +00:00
1b41c2696d
Also set a title in the qt examples like it is now done in the gtk example. Fix the newly added find_video_sink in the gtk example and add similar function to the qt examples.
147 lines
4 KiB
C
147 lines
4 KiB
C
/* GStreamer
|
|
* Copyright (C) <2010> Stefan Kost <ensonic@users.sf.net>
|
|
*
|
|
* gtk-xoverlay: demonstrate overlay handling using gtk
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; 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 <glib.h>
|
|
#include <gdk/gdkx.h>
|
|
#include <gtk/gtk.h>
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/interfaces/xoverlay.h>
|
|
|
|
#include <string.h>
|
|
|
|
static void
|
|
window_closed (GtkWidget * widget, GdkEvent * event, gpointer user_data)
|
|
{
|
|
GstElement *pipeline = user_data;
|
|
|
|
gtk_widget_hide_all (widget);
|
|
gst_element_set_state (pipeline, GST_STATE_NULL);
|
|
gtk_main_quit ();
|
|
}
|
|
|
|
/* slightly convoluted way to find a working video sink that's not a bin,
|
|
* one could use autovideosink from gst-plugins-good instead
|
|
*/
|
|
static GstElement *
|
|
find_video_sink (void)
|
|
{
|
|
GstStateChangeReturn sret;
|
|
GstElement *sink;
|
|
|
|
if ((sink = gst_element_factory_make ("xvimagesink", NULL))) {
|
|
sret = gst_element_set_state (sink, GST_STATE_READY);
|
|
if (sret == GST_STATE_CHANGE_SUCCESS)
|
|
return sink;
|
|
|
|
gst_element_set_state (sink, GST_STATE_NULL);
|
|
}
|
|
gst_object_unref (sink);
|
|
|
|
if ((sink = gst_element_factory_make ("ximagesink", NULL))) {
|
|
sret = gst_element_set_state (sink, GST_STATE_READY);
|
|
if (sret == GST_STATE_CHANGE_SUCCESS)
|
|
return sink;
|
|
|
|
gst_element_set_state (sink, GST_STATE_NULL);
|
|
}
|
|
gst_object_unref (sink);
|
|
|
|
if (strcmp (DEFAULT_VIDEOSINK, "xvimagesink") == 0 ||
|
|
strcmp (DEFAULT_VIDEOSINK, "ximagesink") == 0)
|
|
return NULL;
|
|
|
|
if ((sink = gst_element_factory_make (DEFAULT_VIDEOSINK, NULL))) {
|
|
if (GST_IS_BIN (sink)) {
|
|
gst_object_unref (sink);
|
|
return NULL;
|
|
}
|
|
|
|
sret = gst_element_set_state (sink, GST_STATE_READY);
|
|
if (sret == GST_STATE_CHANGE_SUCCESS)
|
|
return sink;
|
|
|
|
gst_element_set_state (sink, GST_STATE_NULL);
|
|
}
|
|
gst_object_unref (sink);
|
|
return NULL;
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
GtkWidget *window, *video_window;
|
|
GstElement *pipeline, *src, *sink;
|
|
gulong embed_xid;
|
|
GstStateChangeReturn sret;
|
|
|
|
if (!g_thread_supported ())
|
|
g_thread_init (NULL);
|
|
|
|
gst_init (&argc, &argv);
|
|
gtk_init (&argc, &argv);
|
|
|
|
/* prepare the pipeline */
|
|
|
|
pipeline = gst_pipeline_new ("xvoverlay");
|
|
src = gst_element_factory_make ("videotestsrc", NULL);
|
|
sink = find_video_sink ();
|
|
|
|
if (sink == NULL)
|
|
g_error ("Couldn't find a working video sink.");
|
|
|
|
gst_bin_add_many (GST_BIN (pipeline), src, sink, NULL);
|
|
gst_element_link (src, sink);
|
|
|
|
/* prepare the ui */
|
|
|
|
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
|
|
g_signal_connect (G_OBJECT (window), "delete-event",
|
|
G_CALLBACK (window_closed), (gpointer) pipeline);
|
|
gtk_window_set_default_size (GTK_WINDOW (window), 320, 240);
|
|
gtk_window_set_title (GTK_WINDOW (window), "GstXOverlay Gtk+ demo");
|
|
|
|
video_window = gtk_drawing_area_new ();
|
|
gtk_widget_set_double_buffered (video_window, FALSE);
|
|
gtk_container_add (GTK_CONTAINER (window), video_window);
|
|
gtk_container_set_border_width (GTK_CONTAINER (window), 16);
|
|
|
|
gtk_widget_show_all (window);
|
|
gtk_widget_realize (window);
|
|
|
|
embed_xid = GDK_WINDOW_XID (video_window->window);
|
|
gst_x_overlay_set_xwindow_id (GST_X_OVERLAY (sink), embed_xid);
|
|
|
|
/* run the pipeline */
|
|
|
|
sret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
|
|
if (sret == GST_STATE_CHANGE_FAILURE)
|
|
gst_element_set_state (pipeline, GST_STATE_NULL);
|
|
else
|
|
gtk_main ();
|
|
|
|
gst_object_unref (pipeline);
|
|
return 0;
|
|
}
|