2 * Copyright (C) 2010 Stefan Kost <ensonic@users.sf.net>
4 * capsnego.c: benchmark for caps negotiation
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.
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.
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., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
22 /* this benchmark recursively builds a pipeline and measures the time to go
23 * from ready to paused.
24 * The graph size and type can be controlled with a few commandline args:
25 * -d depth: is the depth of the tree
26 * -c children: is the number of branches on each level
27 * -f <flavour>: can be a=udio/v=ideo and is conttrolling the kind of elements
51 static const gchar *factories[NUM_FLAVOURS][NUM_ELEM] = {
52 {"audiotestsrc", "adder", "volume", "audioconvert"},
53 {"videotestsrc", "videomixer", "videoscale", "ffmpegcolorspace"}
56 static const gchar *sink_pads[NUM_FLAVOURS][NUM_ELEM] = {
57 {NULL, "sink%d", NULL, NULL},
58 {NULL, "sink_%d", NULL, NULL}
63 create_node (GstBin * bin, GstElement * sink, const gchar * sinkpadname,
64 GstElement ** new_sink, gint children, gint flavour)
66 GstElement *mix, *proc, *conv;
69 mix = gst_element_factory_make (factories[flavour][ELEM_MIX], NULL);
71 GST_WARNING ("need element '%s'", factories[flavour][ELEM_MIX]);
75 mix = gst_element_factory_make ("identity", NULL);
77 proc = gst_element_factory_make (factories[flavour][ELEM_PROC], NULL);
79 GST_WARNING ("need element '%s'", factories[flavour][ELEM_PROC]);
82 conv = gst_element_factory_make (factories[flavour][ELEM_CONV], NULL);
84 GST_WARNING ("need element '%s'", factories[flavour][ELEM_CONV]);
87 gst_bin_add_many (bin, mix, proc, conv, NULL);
88 if (!gst_element_link_pads_full (mix, "src", proc, "sink",
89 GST_PAD_LINK_CHECK_NOTHING)
90 || !gst_element_link_pads_full (proc, "src", conv, "sink",
91 GST_PAD_LINK_CHECK_NOTHING)
92 || !gst_element_link_pads_full (conv, "src", sink, sinkpadname,
93 GST_PAD_LINK_CHECK_NOTHING)) {
94 GST_WARNING ("can't link elements");
102 create_nodes (GstBin * bin, GstElement * sink, gint depth, gint children,
105 GstElement *new_sink, *src;
108 for (i = 0; i < children; i++) {
110 if (!create_node (bin, sink, sink_pads[flavour][ELEM_MIX], &new_sink,
111 children, flavour)) {
114 if (!create_nodes (bin, new_sink, depth - 1, children, flavour)) {
118 src = gst_element_factory_make (factories[flavour][ELEM_SRC], NULL);
120 GST_WARNING ("need element '%s'", factories[flavour][ELEM_SRC]);
123 gst_bin_add (bin, src);
124 if (!gst_element_link_pads_full (src, "src", sink,
125 sink_pads[flavour][ELEM_MIX], GST_PAD_LINK_CHECK_NOTHING)) {
126 GST_WARNING ("can't link elements");
135 event_loop (GstElement * bin, GstClockTime start)
138 GstMessage *msg = NULL;
139 gboolean running = TRUE;
141 bus = gst_element_get_bus (bin);
144 msg = gst_bus_poll (bus,
145 GST_MESSAGE_STATE_CHANGED | GST_MESSAGE_ERROR | GST_MESSAGE_WARNING,
148 switch (GST_MESSAGE_TYPE (msg)) {
149 case GST_MESSAGE_STATE_CHANGED:
150 if (GST_MESSAGE_SRC (msg) == (GstObject *) bin) {
151 GstState old_state, new_state;
154 gst_message_parse_state_changed (msg, &old_state, &new_state, NULL);
156 end = gst_util_get_timestamp ();
157 g_print ("%" GST_TIME_FORMAT " state change on the bin: %s -> %s\n",
158 GST_TIME_ARGS (end - start),
159 gst_element_state_get_name (old_state),
160 gst_element_state_get_name (new_state));
162 if (old_state == GST_STATE_READY && new_state == GST_STATE_PAUSED) {
167 case GST_MESSAGE_WARNING:{
171 gst_message_parse_warning (msg, &err, &dbg);
172 GST_WARNING_OBJECT (GST_MESSAGE_SRC (msg), "%s (%s)", err->message,
173 (dbg ? dbg : "no details"));
178 case GST_MESSAGE_ERROR:{
182 gst_message_parse_error (msg, &err, &dbg);
183 GST_ERROR_OBJECT (GST_MESSAGE_SRC (msg), "%s (%s)", err->message,
184 (dbg ? dbg : "no details"));
193 gst_message_unref (msg);
195 gst_object_unref (bus);
200 main (gint argc, gchar * argv[])
203 GstClockTime start, end;
204 GstElement *sink, *new_sink;
206 /* default parameters */
209 gint flavour = FLAVOUR_AUDIO;
210 const gchar *flavour_str = "audio";
212 gst_init (&argc, &argv);
214 /* check command line options */
217 for (arg = 0; arg < argc; arg++) {
218 if (!strcmp (argv[arg], "-d")) {
221 depth = atoi (argv[arg]);
222 } else if (!strcmp (argv[arg], "-c")) {
225 children = atoi (argv[arg]);
226 } else if (!strcmp (argv[arg], "-f")) {
229 flavour_str = argv[arg];
230 switch (*flavour_str) {
232 flavour = FLAVOUR_AUDIO;
235 flavour = FLAVOUR_VIDEO;
246 g_print ("building %s pipeline with depth = %d and children = %d\n",
247 flavour_str, depth, children);
248 start = gst_util_get_timestamp ();
249 bin = GST_BIN (gst_pipeline_new ("pipeline"));
250 sink = gst_element_factory_make ("fakesink", NULL);
251 gst_bin_add (bin, sink);
252 if (!create_node (bin, sink, "sink", &new_sink, children, flavour)) {
255 if (!create_nodes (bin, new_sink, depth, children, flavour)) {
258 end = gst_util_get_timestamp ();
259 /* num-threads = num-sources = pow (children, depth) */
260 g_print ("%" GST_TIME_FORMAT " built pipeline with %d elements\n",
261 GST_TIME_ARGS (end - start), GST_BIN_NUMCHILDREN (bin));
264 g_print ("starting pipeline\n");
265 gst_element_set_state (GST_ELEMENT (bin), GST_STATE_READY);
266 GST_DEBUG_BIN_TO_DOT_FILE (bin, GST_DEBUG_GRAPH_SHOW_MEDIA_TYPE, "capsnego");
267 start = gst_util_get_timestamp ();
268 gst_element_set_state (GST_ELEMENT (bin), GST_STATE_PAUSED);
269 event_loop (GST_ELEMENT (bin), start);
270 end = gst_util_get_timestamp ();
271 g_print ("%" GST_TIME_FORMAT " reached paused\n",
272 GST_TIME_ARGS (end - start));
276 gst_element_set_state (GST_ELEMENT (bin), GST_STATE_NULL);
277 gst_object_unref (bin);