gstreamer/tests/benchmarks/gstpoolstress.c

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/* GStreamer
* Copyright (C) <2013> Wim Taymans <wim.taymans@gmail.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 <stdio.h>
#include <stdlib.h>
#include <gst/gst.h>
#include "gst/glib-compat-private.h"
#define BUFFER_SIZE (1400)
gint
main (gint argc, gchar * argv[])
{
gint i;
GstBuffer *tmp;
GstBufferPool *pool;
GstClockTime start, end;
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GstClockTimeDiff dur1, dur2;
guint64 nbuffers;
GstStructure *conf;
gst_init (&argc, &argv);
if (argc != 2) {
g_print ("usage: %s <nbuffers>\n", argv[0]);
exit (-1);
}
nbuffers = atoi (argv[1]);
if (nbuffers <= 0) {
g_print ("number of buffers must be greater than 0\n");
exit (-3);
}
/* Let's just make sure the GstBufferClass is loaded ... */
tmp = gst_buffer_new ();
gst_buffer_unref (tmp);
pool = gst_buffer_pool_new ();
conf = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (conf, NULL, BUFFER_SIZE, 0, 0);
gst_buffer_pool_set_config (pool, conf);
gst_buffer_pool_set_active (pool, TRUE);
/* allocate buffers directly */
start = gst_util_get_timestamp ();
for (i = 0; i < nbuffers; i++) {
tmp = gst_buffer_new_allocate (NULL, BUFFER_SIZE, NULL);
gst_buffer_unref (tmp);
}
end = gst_util_get_timestamp ();
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dur1 = GST_CLOCK_DIFF (start, end);
g_print ("*** total %" GST_TIME_FORMAT " - average %" GST_TIME_FORMAT
" - Done creating %" G_GUINT64_FORMAT " fresh buffers\n",
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GST_TIME_ARGS (dur1), GST_TIME_ARGS (dur1 / nbuffers), nbuffers);
/* allocate buffers from the pool */
start = gst_util_get_timestamp ();
for (i = 0; i < nbuffers; i++) {
gst_buffer_pool_acquire_buffer (pool, &tmp, NULL);
gst_buffer_unref (tmp);
}
end = gst_util_get_timestamp ();
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dur2 = GST_CLOCK_DIFF (start, end);
g_print ("*** total %" GST_TIME_FORMAT " - average %" GST_TIME_FORMAT
" - Done creating %" G_GUINT64_FORMAT " pooled buffers\n",
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GST_TIME_ARGS (dur2), GST_TIME_ARGS (dur2 / nbuffers), nbuffers);
g_print ("*** speedup %6.4lf\n", ((gdouble) dur1 / (gdouble) dur2));
gst_buffer_pool_set_active (pool, FALSE);
gst_object_unref (pool);
return 0;
}