mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-05 07:56:35 +00:00
234 lines
6.6 KiB
C
234 lines
6.6 KiB
C
/* GStreamer
|
|
* Copyright (C) <2008> Stefan Kost <ensonic@users.sf.net>
|
|
*
|
|
* test-videooverlay: test videooverlay 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
/* Disable deprecation warnings because we need to use
|
|
* gtk_widget_set_double_buffered () or display will flicker */
|
|
#define GDK_DISABLE_DEPRECATION_WARNINGS
|
|
|
|
#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/video/videooverlay.h>
|
|
#include <gst/video/gstvideosink.h>
|
|
|
|
static struct
|
|
{
|
|
gint w, h;
|
|
GstVideoOverlay *overlay;
|
|
GtkWidget *widget;
|
|
gdouble a, p;
|
|
GstVideoRectangle rect;
|
|
gboolean running;
|
|
} anim_state;
|
|
|
|
static 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 > (G_PI + G_PI))
|
|
anim_state.a -= (G_PI + G_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_video_overlay_set_render_rectangle (anim_state.overlay, r->x, r->y,
|
|
r->w, r->h);
|
|
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_draw_cb (GtkWidget * widget, cairo_t * cr, gpointer user_data)
|
|
{
|
|
GstVideoRectangle *r = &anim_state.rect;
|
|
GtkStyleContext *style;
|
|
GdkRGBA color;
|
|
int width, height;
|
|
|
|
width = gtk_widget_get_allocated_width (widget);
|
|
height = gtk_widget_get_allocated_height (widget);
|
|
|
|
style = gtk_widget_get_style_context (widget);
|
|
|
|
gtk_style_context_get_color (style, 0, &color);
|
|
gdk_cairo_set_source_rgba (cr, &color);
|
|
|
|
/* we should only redraw outside of the video rect! */
|
|
cairo_rectangle (cr, 0, 0, r->x, height);
|
|
cairo_rectangle (cr, r->x + r->w, 0, width - (r->x + r->w), height);
|
|
|
|
cairo_rectangle (cr, 0, 0, width, r->y);
|
|
cairo_rectangle (cr, 0, r->y + r->h, width, height - (r->y + r->h));
|
|
|
|
cairo_fill (cr);
|
|
|
|
if (verbose) {
|
|
g_print ("draw(%p)\n", widget);
|
|
}
|
|
gst_video_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 (widget);
|
|
gst_element_set_state (pipeline, GST_STATE_NULL);
|
|
gtk_main_quit ();
|
|
}
|
|
|
|
gint
|
|
main (gint argc, gchar ** argv)
|
|
{
|
|
GdkWindow *video_window_xwindow;
|
|
GtkWidget *window, *video_window;
|
|
GstElement *pipeline, *src, *sink;
|
|
GstStateChangeReturn sret;
|
|
gulong embed_xid = 0;
|
|
gboolean force_aspect = FALSE, draw_borders = FALSE;
|
|
|
|
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);
|
|
|
|
video_window_xwindow = gtk_widget_get_window (video_window);
|
|
embed_xid = GDK_WINDOW_XID (video_window_xwindow);
|
|
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-window-handle element message in a sync bus handler and setting
|
|
* it there) */
|
|
gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (sink), embed_xid);
|
|
|
|
anim_state.overlay = GST_VIDEO_OVERLAY (sink);
|
|
anim_state.widget = video_window;
|
|
anim_state.w = 320;
|
|
anim_state.h = 240;
|
|
anim_state.a = 0.0;
|
|
anim_state.p = (G_PI + G_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, "draw", G_CALLBACK (handle_draw_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;
|
|
}
|