--- /dev/null
+/* GStreamer
+ * Copyright (C) <2008> Stefan Kost <ensonic@users.sf.net>
+ *
+ * test-xoverlay: test xoverlay custom event handling and subregions
+ *
+ * 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 <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include <glib.h>
+#include <gdk/gdkx.h>
+#include <gtk/gtk.h>
+
+#include <gst/gst.h>
+#include <gst/interfaces/xoverlay.h>
+#include <gst/video/gstvideosink.h>
+
+static struct
+{
+ gint w, h;
+ GstXOverlay *overlay;
+ GtkWidget *widget;
+ gdouble a, p;
+ GstVideoRectangle rect;
+ gboolean running;
+} anim_state;
+gboolean verbose = FALSE;
+
+static gboolean
+animate_render_rect (gpointer user_data)
+{
+ if (anim_state.running) {
+ GstVideoRectangle *r = &anim_state.rect;
+ gdouble s = sin (3.0 * anim_state.a);
+ gdouble c = cos (2.0 * anim_state.a);
+
+ anim_state.a += anim_state.p;
+ if (anim_state.a > (M_PI + M_PI))
+ anim_state.a -= (M_PI + M_PI);
+
+ r->w = anim_state.w / 2;
+ r->x = (r->w - (r->w / 2)) + c * (r->w / 2);
+ r->h = anim_state.h / 2;
+ r->y = (r->h - (r->h / 2)) + s * (r->h / 2);
+
+ gst_x_overlay_set_render_rectangle (anim_state.overlay, r);
+ gtk_widget_queue_draw (anim_state.widget);
+ }
+ return TRUE;
+}
+
+static gboolean
+handle_resize_cb (GtkWidget * widget, GdkEventConfigure * event,
+ gpointer user_data)
+{
+ GtkAllocation allocation;
+
+ gtk_widget_get_allocation (widget, &allocation);
+ if (verbose) {
+ g_print ("resize(%p): %dx%d\n", widget, allocation.width,
+ allocation.height);
+ }
+ anim_state.w = allocation.width;
+ anim_state.h = allocation.height;
+ animate_render_rect (NULL);
+
+ return FALSE;
+}
+
+static gboolean
+handle_expose_cb (GtkWidget * widget, GdkEventExpose * event,
+ gpointer user_data)
+{
+ GstVideoRectangle *r = &anim_state.rect;
+
+ /* we should only redraw outside of the video rect! */
+ /*
+ gdk_draw_rectangle (widget->window, widget->style->bg_gc[0], TRUE,
+ 0, 0, widget->allocation.width, widget->allocation.height);
+ gdk_draw_rectangle (widget->window, widget->style->bg_gc[0], TRUE,
+ event->area.x, event->area.y, event->area.width, event->area.height);
+ */
+ gdk_draw_rectangle (widget->window, widget->style->bg_gc[0], TRUE,
+ 0, event->area.y, r->x, event->area.height);
+ gdk_draw_rectangle (widget->window, widget->style->bg_gc[0], TRUE,
+ r->x + r->w, event->area.y,
+ widget->allocation.width - (r->x + r->w), event->area.height);
+
+ gdk_draw_rectangle (widget->window, widget->style->bg_gc[0], TRUE,
+ event->area.x, 0, event->area.width, r->y);
+ gdk_draw_rectangle (widget->window, widget->style->bg_gc[0], TRUE,
+ event->area.x, r->y + r->h,
+ event->area.width, widget->allocation.height - (r->y + r->h));
+ if (verbose) {
+ g_print ("expose(%p)\n", widget);
+ }
+ gst_x_overlay_expose (anim_state.overlay);
+ return FALSE;
+}
+
+static void
+window_closed (GtkWidget * widget, GdkEvent * event, gpointer user_data)
+{
+ GstElement *pipeline = user_data;
+
+ if (verbose) {
+ g_print ("stopping\n");
+ }
+ anim_state.running = FALSE;
+ gtk_widget_hide_all (widget);
+ gst_element_set_state (pipeline, GST_STATE_NULL);
+ gtk_main_quit ();
+}
+
+gint
+main (gint argc, gchar ** argv)
+{
+ GtkWidget *window, *video_window;
+ GstElement *pipeline, *src, *sink;
+ GstStateChangeReturn sret;
+ gulong embed_xid = 0;
+ gboolean force_aspect = FALSE, draw_borders = FALSE;
+
+ if (!g_thread_supported ())
+ g_thread_init (NULL);
+
+ gst_init (&argc, &argv);
+ gtk_init (&argc, &argv);
+
+ if (argc) {
+ gint arg;
+ for (arg = 0; arg < argc; arg++) {
+ if (!strcmp (argv[arg], "-a"))
+ force_aspect = TRUE;
+ else if (!strcmp (argv[arg], "-b"))
+ draw_borders = TRUE;
+ else if (!strcmp (argv[arg], "-v"))
+ verbose = TRUE;
+ }
+ }
+
+ /* prepare the pipeline */
+
+ pipeline = gst_pipeline_new ("xvoverlay");
+ src = gst_element_factory_make ("videotestsrc", NULL);
+ sink = gst_element_factory_make ("xvimagesink", NULL);
+ gst_bin_add_many (GST_BIN (pipeline), src, sink, NULL);
+ gst_element_link (src, sink);
+
+ g_object_set (G_OBJECT (sink), "handle-events", FALSE,
+ "force-aspect-ratio", force_aspect, "draw-borders", draw_borders, NULL);
+
+ /* 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);
+
+ video_window = gtk_drawing_area_new ();
+ gtk_widget_set_double_buffered (video_window, FALSE);
+ gtk_container_add (GTK_CONTAINER (window), video_window);
+
+ /* show the gui and play */
+ gtk_widget_show_all (window);
+
+ /* realize window now so that the video window gets created and we can
+ * obtain its XID before the pipeline is started up and the videosink
+ * asks for the XID of the window to render onto */
+ gtk_widget_realize (window);
+
+ embed_xid = GDK_WINDOW_XID (video_window->window);
+ if (verbose) {
+ g_print ("Window realize: got XID %lu\n", embed_xid);
+ }
+
+ /* we know what the video sink is in this case (xvimagesink), so we can
+ * just set it directly here now (instead of waiting for a prepare-xwindow-id
+ * element message in a sync bus handler and setting it there) */
+ gst_x_overlay_set_xwindow_id (GST_X_OVERLAY (sink), embed_xid);
+
+ anim_state.overlay = GST_X_OVERLAY (sink);
+ anim_state.widget = video_window;
+ anim_state.w = 320;
+ anim_state.h = 240;
+ anim_state.a = 0.0;
+ anim_state.p = (M_PI + M_PI) / 200.0;
+
+ handle_resize_cb (video_window, NULL, sink);
+ g_signal_connect (video_window, "configure-event",
+ G_CALLBACK (handle_resize_cb), NULL);
+ g_signal_connect (video_window, "expose-event",
+ G_CALLBACK (handle_expose_cb), NULL);
+
+ g_timeout_add (50, (GSourceFunc) animate_render_rect, NULL);
+
+ /* 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 {
+ anim_state.running = TRUE;
+ gtk_main ();
+ }
+
+ gst_object_unref (pipeline);
+ return 0;
+}
projects / platform / upstream / gstreamer.git / commitdiff