2 * Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 #include <gst/controller/gstlfocontrolsource.h>
26 on_message (GstBus * bus, GstMessage * message, gpointer user_data)
28 GMainLoop *loop = (GMainLoop *) user_data;
30 switch (GST_MESSAGE_TYPE (message)) {
31 case GST_MESSAGE_ERROR:{
35 g_warning ("Got ERROR");
36 gst_message_parse_error (message, &err, &debug);
37 g_warning ("%s: %s", err->message, debug);
38 g_main_loop_quit (loop);
41 case GST_MESSAGE_WARNING:{
45 g_warning ("Got WARNING");
46 gst_message_parse_error (message, &err, &debug);
47 g_warning ("%s: %s", err->message, debug);
48 g_main_loop_quit (loop);
52 g_main_loop_quit (loop);
62 main (gint argc, gchar ** argv)
65 GstElement *shapewipe;
67 GstLFOControlSource *csource;
71 gchar *pipeline_string;
75 g_print ("Usage: shapewipe mask.png <border>\n");
79 gst_init (&argc, &argv);
82 border = atof (argv[2]);
87 ("videotestsrc ! video/x-raw-yuv,format=(fourcc)AYUV,width=640,height=480 ! shapewipe name=shape border=%f ! videomixer name=mixer ! ffmpegcolorspace ! autovideosink filesrc location=%s ! typefind ! decodebin2 ! ffmpegcolorspace ! videoscale ! queue ! shape.mask_sink videotestsrc pattern=snow ! video/x-raw-yuv,format=(fourcc)AYUV,width=640,height=480 ! queue ! mixer.",
90 pipeline = gst_parse_launch (pipeline_string, NULL);
91 g_free (pipeline_string);
93 if (pipeline == NULL) {
94 g_print ("Failed to create pipeline\n");
98 shapewipe = gst_bin_get_by_name (GST_BIN (pipeline), "shape");
100 if (!(ctrl = gst_controller_new (GST_OBJECT (shapewipe), "position", NULL))) {
101 g_print ("can't control shapewipe element\n");
105 csource = gst_lfo_control_source_new ();
107 gst_controller_set_control_source (ctrl, "position",
108 GST_CONTROL_SOURCE (csource));
110 g_value_init (&val, G_TYPE_FLOAT);
111 g_value_set_float (&val, 0.5);
112 g_object_set (G_OBJECT (csource), "amplitude", &val, NULL);
113 g_value_set_float (&val, 0.5);
114 g_object_set (G_OBJECT (csource), "offset", &val, NULL);
115 g_value_unset (&val);
117 g_object_set (G_OBJECT (csource), "frequency", 0.25, NULL);
118 g_object_set (G_OBJECT (csource), "timeshift", 500 * GST_MSECOND, NULL);
120 g_object_unref (csource);
122 loop = g_main_loop_new (NULL, FALSE);
124 bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
125 gst_bus_add_signal_watch (bus);
126 g_signal_connect (G_OBJECT (bus), "message", G_CALLBACK (on_message), loop);
127 gst_object_unref (GST_OBJECT (bus));
129 if (gst_element_set_state (pipeline,
130 GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) {
131 g_error ("Failed to go into PLAYING state");
135 g_main_loop_run (loop);
137 gst_element_set_state (pipeline, GST_STATE_NULL);
139 g_main_loop_unref (loop);
141 g_object_unref (G_OBJECT (ctrl));
142 gst_object_unref (G_OBJECT (pipeline));