#include <gst/gst.h>
#include <gst/interfaces/xoverlay.h>
+#include <string.h>
+
static void
window_closed (GtkWidget * widget, GdkEvent * event, gpointer user_data)
{
gtk_main_quit ();
}
+/* slightly convoluted way to find a working video sink that's not a bin */
+static GstElement *
+find_video_sink (void)
+{
+ GstStateChangeReturn sret;
+ GstElement *sink;
+
+ 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);
+
+ 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;
+
+ 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)
{
pipeline = gst_pipeline_new ("xvoverlay");
src = gst_element_factory_make ("videotestsrc", NULL);
- sink = gst_element_factory_make ("xvimagesink", 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);
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);