gstreamer/tests/benchmarks/complexity.c

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/*
* Copyright (C) 2004 Benjamin Otte <otte@gnome.org>
* Copyright (C) 2005 Andy Wingo <wingo@pobox.com>
*
* 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.
*/
#include <stdlib.h>
#include <gst/gst.h>
#define BUFFER_COUNT (1000)
gint
main (gint argc, gchar * argv[])
{
GstMessage *msg;
GstElement *pipeline, *src, *e;
GSList *saved_src_list, *src_list, *new_src_list;
guint complexity_order, n_elements, i, j, max_this_level;
GstClockTime start, end;
gst_init (&argc, &argv);
if (argc != 3) {
g_print ("Usage: %s COMPLEXITY_ORDER N_ELEMENTS\n", argv[0]);
return 1;
}
complexity_order = atoi (argv[1]);
n_elements = atoi (argv[2]);
start = gst_util_get_timestamp ();
pipeline = gst_element_factory_make ("pipeline", NULL);
g_assert (pipeline);
e = gst_element_factory_make ("fakesrc", NULL);
g_object_set (e, "num-buffers", BUFFER_COUNT, NULL);
g_object_set (e, "silent", TRUE, NULL);
gst_bin_add (GST_BIN (pipeline), e);
src_list = saved_src_list = g_slist_append (NULL, e);
new_src_list = NULL;
max_this_level = 1;
for (i = 0, j = 0; i < n_elements; i++, j++) {
if (j >= max_this_level) {
g_slist_free (saved_src_list);
saved_src_list = g_slist_reverse (new_src_list);
new_src_list = NULL;
j = 0;
max_this_level *= complexity_order;
}
if (!src_list) {
src_list = saved_src_list;
}
src = (GstElement *) src_list->data;
src_list = src_list->next;
if (i + max_this_level < n_elements) {
e = gst_element_factory_make ("tee", NULL);
} else {
e = gst_element_factory_make ("fakesink", NULL);
g_object_set (e, "async", FALSE, NULL);
}
g_object_set (e, "silent", TRUE, NULL);
new_src_list = g_slist_prepend (new_src_list, e);
gst_bin_add (GST_BIN (pipeline), e);
if (!gst_element_link (src, e))
g_assert_not_reached ();
}
g_slist_free (saved_src_list);
g_slist_free (new_src_list);
end = gst_util_get_timestamp ();
g_print ("%" GST_TIME_FORMAT " - creating and linking %u elements\n",
GST_TIME_ARGS (end - start), i);
start = gst_util_get_timestamp ();
if (gst_element_set_state (pipeline,
GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE)
g_assert_not_reached ();
if (gst_element_get_state (pipeline, NULL, NULL,
GST_CLOCK_TIME_NONE) == GST_STATE_CHANGE_FAILURE)
g_assert_not_reached ();
end = gst_util_get_timestamp ();
g_print ("%" GST_TIME_FORMAT " - setting pipeline to playing\n",
GST_TIME_ARGS (end - start));
start = gst_util_get_timestamp ();
msg = gst_bus_poll (gst_element_get_bus (pipeline),
GST_MESSAGE_EOS | GST_MESSAGE_ERROR, -1);
end = gst_util_get_timestamp ();
gst_message_unref (msg);
g_print ("%" GST_TIME_FORMAT " - putting %d buffers through\n",
GST_TIME_ARGS (end - start), BUFFER_COUNT);
start = gst_util_get_timestamp ();
if (gst_element_set_state (pipeline,
GST_STATE_NULL) != GST_STATE_CHANGE_SUCCESS)
g_assert_not_reached ();
end = gst_util_get_timestamp ();
g_print ("%" GST_TIME_FORMAT " - setting pipeline to NULL\n",
GST_TIME_ARGS (end - start));
start = gst_util_get_timestamp ();
g_object_unref (pipeline);
end = gst_util_get_timestamp ();
g_print ("%" GST_TIME_FORMAT " - unreffing pipeline\n",
GST_TIME_ARGS (end - start));
return 0;
}