1 /* GStreamer
2 * Copyright (C) <2010> Stefan Kost <ensonic@users.sf.net>
3 *
4 * qt-xoverlay: demonstrate overlay handling using qt
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22 #ifdef HAVE_CONFIG_H
23 #include "config.h"
24 #endif
25
26 #include <glib.h>
27 #include <gst/gst.h>
28 #include <gst/video/videooverlay.h>
29
30 #include <QApplication>
31 #include <QTimer>
32 #include <QWidget>
33
main(int argc,char * argv[])34 int main(int argc, char *argv[])
35 {
36 gst_init (&argc, &argv);
37 QApplication app(argc, argv);
38 app.setQuitOnLastWindowClosed(true);
39
40 /* prepare the pipeline */
41
42 GstElement *pipeline = gst_pipeline_new ("xvoverlay");
43 GstElement *src = gst_element_factory_make ("videotestsrc", NULL);
44 GstElement *sink = gst_element_factory_make ("glimagesink", NULL);
45
46 if (sink == NULL)
47 g_error ("Couldn't create glimagesink.");
48
49 gst_bin_add_many (GST_BIN (pipeline), src, sink, NULL);
50 gst_element_link (src, sink);
51
52 /* prepare the ui */
53
54 QWidget window;
55 window.resize(320, 240);
56 window.setWindowTitle("GstVideoOverlay Qt demo");
57 window.show();
58
59 WId xwinid = window.winId();
60 gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (sink), xwinid);
61
62 /* run the pipeline */
63
64 GstStateChangeReturn sret = gst_element_set_state (pipeline,
65 GST_STATE_PLAYING);
66 if (sret == GST_STATE_CHANGE_FAILURE) {
67 gst_element_set_state (pipeline, GST_STATE_NULL);
68 gst_object_unref (pipeline);
69 /* Exit application */
70 QTimer::singleShot(0, QApplication::activeWindow(), SLOT(quit()));
71 }
72
73 int ret = app.exec();
74
75 window.hide();
76 gst_element_set_state (pipeline, GST_STATE_NULL);
77 gst_object_unref (pipeline);
78
79 return ret;
80 }
81