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gstreamer/tests/check/gst/gstutils.c
Wim Taymans 2dc0ef57fd check/gst/gstutils.c: Updated check, add some scaling accuracy checking code. 
Original commit message from CVS:
* check/gst/gstutils.c: (GST_START_TEST):
Updated check, add some scaling accuracy checking code.

* gst/gstutils.c: (gst_util_div128_64),
(gst_util_uint64_scale_int64), (gst_util_uint64_scale),
(gst_util_uint64_scale_int):
Fix 6 times faster division code. Optimize for common
1/1 and less common X/1 cases.
2005-11-28 18:44:11 +00:00

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/* GStreamer
* Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>
*
* gstutils.c: Unit test for functions in gstutils
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gst/check/gstcheck.h>
#define SPECIAL_POINTER(x) ((void*)(19283847+(x)))
static int n_data_probes = 0;
static int n_buffer_probes = 0;
static int n_event_probes = 0;
static gboolean
data_probe (GstPad * pad, GstMiniObject * obj, gpointer data)
{
n_data_probes++;
g_assert (GST_IS_MINI_OBJECT (obj));
g_assert (data == SPECIAL_POINTER (0));
return TRUE;
}
static gboolean
buffer_probe (GstPad * pad, GstBuffer * obj, gpointer data)
{
n_buffer_probes++;
g_assert (GST_IS_BUFFER (obj));
g_assert (data == SPECIAL_POINTER (1));
return TRUE;
}
static gboolean
event_probe (GstPad * pad, GstEvent * obj, gpointer data)
{
n_event_probes++;
g_assert (GST_IS_EVENT (obj));
g_assert (data == SPECIAL_POINTER (2));
return TRUE;
}
GST_START_TEST (test_buffer_probe_n_times)
{
GstElement *pipeline, *fakesrc, *fakesink;
GstBus *bus;
GstMessage *message;
GstPad *pad;
pipeline = gst_element_factory_make ("pipeline", NULL);
fakesrc = gst_element_factory_make ("fakesrc", NULL);
fakesink = gst_element_factory_make ("fakesink", NULL);
g_object_set (fakesrc, "num-buffers", (int) 10, NULL);
gst_bin_add_many (GST_BIN (pipeline), fakesrc, fakesink, NULL);
gst_element_link (fakesrc, fakesink);
pad = gst_element_get_pad (fakesink, "sink");
gst_pad_add_data_probe (pad, G_CALLBACK (data_probe), SPECIAL_POINTER (0));
gst_pad_add_buffer_probe (pad, G_CALLBACK (buffer_probe),
SPECIAL_POINTER (1));
gst_pad_add_event_probe (pad, G_CALLBACK (event_probe), SPECIAL_POINTER (2));
gst_object_unref (pad);
gst_element_set_state (pipeline, GST_STATE_PLAYING);
bus = gst_element_get_bus (pipeline);
message = gst_bus_poll (bus, GST_MESSAGE_EOS, -1);
gst_message_unref (message);
gst_object_unref (bus);
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_object_unref (pipeline);
g_assert (n_buffer_probes == 10); /* one for every buffer */
g_assert (n_event_probes == 2); /* new segment and eos */
g_assert (n_data_probes == 12); /* duh */
} GST_END_TEST;
static int n_data_probes_once = 0;
static int n_buffer_probes_once = 0;
static int n_event_probes_once = 0;
static gboolean
data_probe_once (GstPad * pad, GstMiniObject * obj, guint * data)
{
n_data_probes_once++;
g_assert (GST_IS_MINI_OBJECT (obj));
gst_pad_remove_data_probe (pad, *data);
return TRUE;
}
static gboolean
buffer_probe_once (GstPad * pad, GstBuffer * obj, guint * data)
{
n_buffer_probes_once++;
g_assert (GST_IS_BUFFER (obj));
gst_pad_remove_buffer_probe (pad, *data);
return TRUE;
}
static gboolean
event_probe_once (GstPad * pad, GstEvent * obj, guint * data)
{
n_event_probes_once++;
g_assert (GST_IS_EVENT (obj));
gst_pad_remove_event_probe (pad, *data);
return TRUE;
}
GST_START_TEST (test_buffer_probe_once)
{
GstElement *pipeline, *fakesrc, *fakesink;
GstBus *bus;
GstMessage *message;
GstPad *pad;
guint id1, id2, id3;
pipeline = gst_element_factory_make ("pipeline", NULL);
fakesrc = gst_element_factory_make ("fakesrc", NULL);
fakesink = gst_element_factory_make ("fakesink", NULL);
g_object_set (fakesrc, "num-buffers", (int) 10, NULL);
gst_bin_add_many (GST_BIN (pipeline), fakesrc, fakesink, NULL);
gst_element_link (fakesrc, fakesink);
pad = gst_element_get_pad (fakesink, "sink");
id1 = gst_pad_add_data_probe (pad, G_CALLBACK (data_probe_once), &id1);
id2 = gst_pad_add_buffer_probe (pad, G_CALLBACK (buffer_probe_once), &id2);
id3 = gst_pad_add_event_probe (pad, G_CALLBACK (event_probe_once), &id3);
gst_object_unref (pad);
gst_element_set_state (pipeline, GST_STATE_PLAYING);
bus = gst_element_get_bus (pipeline);
message = gst_bus_poll (bus, GST_MESSAGE_EOS, -1);
gst_message_unref (message);
gst_object_unref (bus);
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_object_unref (pipeline);
g_assert (n_buffer_probes_once == 1); /* can we hit it and quit? */
g_assert (n_event_probes_once == 1); /* i said, can we hit it and quit? */
g_assert (n_data_probes_once == 1); /* let's hit it and quit!!! */
} GST_END_TEST;
GST_START_TEST (test_math_scale)
{
fail_if (gst_util_uint64_scale_int (1, 1, 1) != 1);
fail_if (gst_util_uint64_scale_int (10, 10, 1) != 100);
fail_if (gst_util_uint64_scale_int (10, 10, 2) != 50);
fail_if (gst_util_uint64_scale_int (0, 10, 2) != 0);
fail_if (gst_util_uint64_scale_int (0, 0, 2) != 0);
fail_if (gst_util_uint64_scale_int (G_MAXUINT32, 5, 1) != G_MAXUINT32 * 5LL);
fail_if (gst_util_uint64_scale_int (G_MAXUINT32, 10, 2) != G_MAXUINT32 * 5LL);
fail_if (gst_util_uint64_scale_int (G_MAXUINT32, 1, 5) != G_MAXUINT32 / 5LL);
fail_if (gst_util_uint64_scale_int (G_MAXUINT32, 2, 10) != G_MAXUINT32 / 5LL);
/* not quite overflow */
fail_if (gst_util_uint64_scale_int (G_MAXUINT64 - 1, 10,
10) != G_MAXUINT64 - 1);
fail_if (gst_util_uint64_scale_int (G_MAXUINT64 - 1, G_MAXINT32,
G_MAXINT32) != G_MAXUINT64 - 1);
fail_if (gst_util_uint64_scale_int (G_MAXUINT64 - 100, G_MAXINT32,
G_MAXINT32) != G_MAXUINT64 - 100);
/* overflow */
fail_if (gst_util_uint64_scale_int (G_MAXUINT64 - 1, 10, 1) != G_MAXUINT64);
fail_if (gst_util_uint64_scale_int (G_MAXUINT64 - 1, G_MAXINT32,
1) != G_MAXUINT64);
} GST_END_TEST;
GST_START_TEST (test_math_scale_uint64)
{
fail_if (gst_util_uint64_scale (1, 1, 1) != 1);
fail_if (gst_util_uint64_scale (10, 10, 1) != 100);
fail_if (gst_util_uint64_scale (10, 10, 2) != 50);
fail_if (gst_util_uint64_scale (0, 10, 2) != 0);
fail_if (gst_util_uint64_scale (0, 0, 2) != 0);
fail_if (gst_util_uint64_scale (G_MAXUINT32, 5, 1) != G_MAXUINT32 * 5LL);
fail_if (gst_util_uint64_scale (G_MAXUINT32, 10, 2) != G_MAXUINT32 * 5LL);
fail_if (gst_util_uint64_scale (G_MAXUINT32, 1, 5) != G_MAXUINT32 / 5LL);
fail_if (gst_util_uint64_scale (G_MAXUINT32, 2, 10) != G_MAXUINT32 / 5LL);
/* not quite overflow */
fail_if (gst_util_uint64_scale (G_MAXUINT64 - 1, 10, 10) != G_MAXUINT64 - 1);
fail_if (gst_util_uint64_scale (G_MAXUINT64 - 1, G_MAXUINT32,
G_MAXUINT32) != G_MAXUINT64 - 1);
fail_if (gst_util_uint64_scale (G_MAXUINT64 - 100, G_MAXUINT32,
G_MAXUINT32) != G_MAXUINT64 - 100);
fail_if (gst_util_uint64_scale (G_MAXUINT64 - 1, 10, 10) != G_MAXUINT64 - 1);
fail_if (gst_util_uint64_scale (G_MAXUINT64 - 1, G_MAXUINT64,
G_MAXUINT64) != G_MAXUINT64 - 1);
fail_if (gst_util_uint64_scale (G_MAXUINT64 - 100, G_MAXUINT64,
G_MAXUINT64) != G_MAXUINT64 - 100);
/* overflow */
fail_if (gst_util_uint64_scale (G_MAXUINT64 - 1, 10, 1) != G_MAXUINT64);
fail_if (gst_util_uint64_scale (G_MAXUINT64 - 1, G_MAXUINT64,
1) != G_MAXUINT64);
} GST_END_TEST;
GST_START_TEST (test_math_scale_random)
{
guint64 val, num, denom, res;
GRand *rand;
gint i;
rand = g_rand_new ();
i = 1000000;
while (i--) {
guint64 check, diff;
val = ((guint64) g_rand_int (rand)) << 32 | g_rand_int (rand);
num = ((guint64) g_rand_int (rand)) << 32 | g_rand_int (rand);
denom = ((guint64) g_rand_int (rand)) << 32 | g_rand_int (rand);
res = gst_util_uint64_scale (val, num, denom);
check = gst_gdouble_to_guint64 (gst_guint64_to_gdouble (val) *
gst_guint64_to_gdouble (num) / gst_guint64_to_gdouble (denom));
if (res < G_MAXUINT64 && check < G_MAXUINT64) {
if (res > check)
diff = res - check;
else
diff = check - res;
/* some arbitrary value, really.. someone do the proper math to get
* the upper bound */
if (diff > 20000)
fail_if (diff > 20000);
}
}
g_rand_free (rand);
}
GST_END_TEST;
Suite *
gst_utils_suite (void)
{
Suite *s = suite_create ("GstUtils");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_buffer_probe_n_times);
tcase_add_test (tc_chain, test_buffer_probe_once);
tcase_add_test (tc_chain, test_math_scale);
tcase_add_test (tc_chain, test_math_scale_uint64);
tcase_add_test (tc_chain, test_math_scale_random);
return s;
}
int
main (int argc, char **argv)
{
int nf;
Suite *s = gst_utils_suite ();
SRunner *sr = srunner_create (s);
gst_check_init (&argc, &argv);
srunner_run_all (sr, CK_NORMAL);
nf = srunner_ntests_failed (sr);
srunner_free (sr);
return nf;
}
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