1 /* GStreamer
2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 *
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.
8 *
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.
13 *
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., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19 #include <gst/gst.h>
20
21 #define UPDATE_INTERVAL 500
22
23 static gboolean
update_scale(GstElement * element)24 update_scale (GstElement * element)
25 {
26 gint64 duration = -1;
27 gint64 position = -1;
28 gchar dur_str[32], pos_str[32];
29
30 if (gst_element_query_position (element, GST_FORMAT_TIME, &position) &&
31 position != -1) {
32 g_snprintf (pos_str, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (position));
33 } else {
34 g_snprintf (pos_str, 32, "-:--:--.---------");
35 }
36
37 if (gst_element_query_duration (element, GST_FORMAT_TIME, &duration) &&
38 duration != -1) {
39 g_snprintf (dur_str, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (duration));
40 } else {
41 g_snprintf (dur_str, 32, "-:--:--.---------");
42 }
43
44 g_print ("%s / %s\n", pos_str, dur_str);
45
46 return TRUE;
47 }
48
49 static void
warning_cb(GstBus * bus,GstMessage * msg,gpointer foo)50 warning_cb (GstBus * bus, GstMessage * msg, gpointer foo)
51 {
52 GError *err = NULL;
53 gchar *dbg = NULL;
54
55 gst_message_parse_warning (msg, &err, &dbg);
56
57 g_printerr ("WARNING: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
58
59 g_error_free (err);
60 g_free (dbg);
61 }
62
63 static void
error_cb(GstBus * bus,GstMessage * msg,GMainLoop * main_loop)64 error_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
65 {
66 GError *err = NULL;
67 gchar *dbg = NULL;
68
69 gst_message_parse_error (msg, &err, &dbg);
70
71 g_printerr ("ERROR: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
72
73 g_main_loop_quit (main_loop);
74
75 g_error_free (err);
76 g_free (dbg);
77 }
78
79 static void
eos_cb(GstBus * bus,GstMessage * msg,GMainLoop * main_loop)80 eos_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
81 {
82 g_print ("EOS\n");
83 g_main_loop_quit (main_loop);
84 }
85
86
87 gint
main(gint argc,gchar * argv[])88 main (gint argc, gchar * argv[])
89 {
90 GstStateChangeReturn res;
91 GstElement *player;
92 GMainLoop *loop;
93 GstBus *bus;
94
95 gst_init (&argc, &argv);
96
97 loop = g_main_loop_new (NULL, TRUE);
98
99 player = gst_element_factory_make ("playbin", "player");
100 g_assert (player);
101
102 bus = gst_pipeline_get_bus (GST_PIPELINE (player));
103 gst_bus_add_signal_watch (bus);
104
105 g_signal_connect (bus, "message::eos", G_CALLBACK (eos_cb), loop);
106 g_signal_connect (bus, "message::error", G_CALLBACK (error_cb), loop);
107 g_signal_connect (bus, "message::warning", G_CALLBACK (warning_cb), NULL);
108
109 g_object_set (G_OBJECT (player), "uri", argv[1], NULL);
110
111 res = gst_element_set_state (player, GST_STATE_PLAYING);
112 if (res == GST_STATE_CHANGE_FAILURE) {
113 g_print ("could not play\n");
114 return -1;
115 }
116
117 g_timeout_add (UPDATE_INTERVAL, (GSourceFunc) update_scale, player);
118
119 g_main_loop_run (loop);
120
121 /* tidy up */
122 gst_element_set_state (player, GST_STATE_NULL);
123 gst_object_unref (player);
124 gst_object_unref (bus);
125
126 return 0;
127 }
128