gstreamer/subprojects/gst-plugins-good/tests/check/elements/equalizer.c

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/* GStreamer
*
* Copyright (C) 2008 Sebastian Dröge <slomo@circular-chaos.org>
*
* equalizer.c: Unit test for the equalizer element
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <gst/gst.h>
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#include <gst/audio/audio.h>
#include <gst/base/gstbasetransform.h>
#include <gst/check/gstcheck.h>
#include <math.h>
/* For ease of programming we use globals to keep refs for our floating
* src and sink pads we create; otherwise we always have to do get_pad,
* get_peer, and then remove references in every test function */
GstPad *mysrcpad, *mysinkpad;
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#define EQUALIZER_CAPS_STRING \
"audio/x-raw, " \
"format = (string) "GST_AUDIO_NE (F64) ", " \
"layout = (string) interleaved, " \
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"channels = (int) 1, " \
"rate = (int) 48000"
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw, "
"format = (string) " GST_AUDIO_NE (F64) ", "
"layout = (string) interleaved, "
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"channels = (int) 1, " "rate = (int) 48000")
);
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw, "
"format = (string) " GST_AUDIO_NE (F64) ", "
"layout = (string) interleaved, "
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"channels = (int) 1, " "rate = (int) 48000")
);
static GstElement *
setup_equalizer (void)
{
GstElement *equalizer;
GST_DEBUG ("setup_equalizer");
equalizer = gst_check_setup_element ("equalizer-nbands");
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mysrcpad = gst_check_setup_src_pad (equalizer, &srctemplate);
mysinkpad = gst_check_setup_sink_pad (equalizer, &sinktemplate);
gst_pad_set_active (mysrcpad, TRUE);
gst_pad_set_active (mysinkpad, TRUE);
return equalizer;
}
static void
cleanup_equalizer (GstElement * equalizer)
{
GST_DEBUG ("cleanup_equalizer");
g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);
g_list_free (buffers);
buffers = NULL;
gst_pad_set_active (mysrcpad, FALSE);
gst_pad_set_active (mysinkpad, FALSE);
gst_check_teardown_src_pad (equalizer);
gst_check_teardown_sink_pad (equalizer);
gst_check_teardown_element (equalizer);
}
GST_START_TEST (test_equalizer_5bands_passthrough)
{
GstElement *equalizer;
GstBuffer *inbuffer;
GstCaps *caps;
gdouble *in, *res;
gint i;
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GstMapInfo map;
equalizer = setup_equalizer ();
g_object_set (G_OBJECT (equalizer), "num-bands", 5, NULL);
fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
(equalizer)), 5);
fail_unless (gst_element_set_state (equalizer,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (1024 * sizeof (gdouble));
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gst_buffer_map (inbuffer, &map, GST_MAP_WRITE);
in = (gdouble *) map.data;
for (i = 0; i < 1024; i++)
in[i] = g_random_double_range (-1.0, 1.0);
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gst_buffer_unmap (inbuffer, &map);
caps = gst_caps_from_string (EQUALIZER_CAPS_STRING);
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gst_check_setup_events (mysrcpad, equalizer, caps, GST_FORMAT_TIME);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
/* ... and puts a new buffer on the global list */
fail_unless (g_list_length (buffers) == 1);
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gst_buffer_map (GST_BUFFER (buffers->data), &map, GST_MAP_READ);
res = (gdouble *) map.data;
for (i = 0; i < 1024; i++)
fail_unless_equals_float (in[i], res[i]);
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gst_buffer_unmap (GST_BUFFER (buffers->data), &map);
/* cleanup */
cleanup_equalizer (equalizer);
}
GST_END_TEST;
GST_START_TEST (test_equalizer_5bands_minus_24)
{
GstElement *equalizer;
GstBuffer *inbuffer;
GstCaps *caps;
gdouble *in, *res, rms_in, rms_out;
gint i;
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GstMapInfo map;
equalizer = setup_equalizer ();
g_object_set (G_OBJECT (equalizer), "num-bands", 5, NULL);
fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
(equalizer)), 5);
for (i = 0; i < 5; i++) {
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GObject *band =
gst_child_proxy_get_child_by_index (GST_CHILD_PROXY (equalizer), i);
fail_unless (band != NULL);
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g_object_set (band, "gain", -24.0, NULL);
g_object_unref (band);
}
fail_unless (gst_element_set_state (equalizer,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (1024 * sizeof (gdouble));
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gst_buffer_map (inbuffer, &map, GST_MAP_WRITE);
in = (gdouble *) map.data;
for (i = 0; i < 1024; i++)
in[i] = g_random_double_range (-1.0, 1.0);
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gst_buffer_unmap (inbuffer, &map);
rms_in = 0.0;
for (i = 0; i < 1024; i++)
rms_in += in[i] * in[i];
rms_in = sqrt (rms_in / 1024);
caps = gst_caps_from_string (EQUALIZER_CAPS_STRING);
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gst_check_setup_events (mysrcpad, equalizer, caps, GST_FORMAT_TIME);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
/* ... and puts a new buffer on the global list */
fail_unless (g_list_length (buffers) == 1);
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gst_buffer_map (GST_BUFFER (buffers->data), &map, GST_MAP_READ);
res = (gdouble *) map.data;
rms_out = 0.0;
for (i = 0; i < 1024; i++)
rms_out += res[i] * res[i];
rms_out = sqrt (rms_out / 1024);
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gst_buffer_unmap (GST_BUFFER (buffers->data), &map);
fail_unless (rms_in > rms_out);
/* cleanup */
cleanup_equalizer (equalizer);
}
GST_END_TEST;
GST_START_TEST (test_equalizer_5bands_plus_12)
{
GstElement *equalizer;
GstBuffer *inbuffer;
GstCaps *caps;
gdouble *in, *res, rms_in, rms_out;
gint i;
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GstMapInfo map;
equalizer = setup_equalizer ();
g_object_set (G_OBJECT (equalizer), "num-bands", 5, NULL);
fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
(equalizer)), 5);
for (i = 0; i < 5; i++) {
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GObject *band =
gst_child_proxy_get_child_by_index (GST_CHILD_PROXY (equalizer), i);
fail_unless (band != NULL);
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g_object_set (band, "gain", 12.0, NULL);
g_object_unref (band);
}
fail_unless (gst_element_set_state (equalizer,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (1024 * sizeof (gdouble));
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gst_buffer_map (inbuffer, &map, GST_MAP_WRITE);
in = (gdouble *) map.data;
for (i = 0; i < 1024; i++)
in[i] = g_random_double_range (-1.0, 1.0);
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gst_buffer_unmap (inbuffer, &map);
rms_in = 0.0;
for (i = 0; i < 1024; i++)
rms_in += in[i] * in[i];
rms_in = sqrt (rms_in / 1024);
caps = gst_caps_from_string (EQUALIZER_CAPS_STRING);
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gst_check_setup_events (mysrcpad, equalizer, caps, GST_FORMAT_TIME);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
/* ... and puts a new buffer on the global list */
fail_unless (g_list_length (buffers) == 1);
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gst_buffer_map (GST_BUFFER (buffers->data), &map, GST_MAP_READ);
res = (gdouble *) map.data;
rms_out = 0.0;
for (i = 0; i < 1024; i++)
rms_out += res[i] * res[i];
rms_out = sqrt (rms_out / 1024);
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gst_buffer_unmap (GST_BUFFER (buffers->data), &map);
fail_unless (rms_in < rms_out);
/* cleanup */
cleanup_equalizer (equalizer);
}
GST_END_TEST;
GST_START_TEST (test_equalizer_band_number_changing)
{
GstElement *equalizer;
gint i;
equalizer = setup_equalizer ();
g_object_set (G_OBJECT (equalizer), "num-bands", 5, NULL);
fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
(equalizer)), 5);
for (i = 0; i < 5; i++) {
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GObject *band;
band = gst_child_proxy_get_child_by_index (GST_CHILD_PROXY (equalizer), i);
fail_unless (band != NULL);
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g_object_unref (band);
}
g_object_set (G_OBJECT (equalizer), "num-bands", 10, NULL);
fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
(equalizer)), 10);
for (i = 0; i < 10; i++) {
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GObject *band;
band = gst_child_proxy_get_child_by_index (GST_CHILD_PROXY (equalizer), i);
fail_unless (band != NULL);
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g_object_unref (band);
}
/* cleanup */
cleanup_equalizer (equalizer);
}
GST_END_TEST;
GST_START_TEST (test_equalizer_presets)
{
GstElement *eq1, *eq2;
gint type;
gdouble gain, freq;
eq1 = gst_check_setup_element ("equalizer-nbands");
g_object_set (G_OBJECT (eq1), "num-bands", 3, NULL);
/* set properties to non-defaults */
gst_child_proxy_set ((GstChildProxy *) eq1,
"band0::type", 0, "band0::gain", -3.0, "band0::freq", 100.0,
"band1::type", 1, "band1::gain", +3.0, "band1::freq", 1000.0,
"band2::type", 2, "band2::gain", +9.0, "band2::freq", 10000.0, NULL);
/* save preset */
gst_preset_save_preset ((GstPreset *) eq1, "_testpreset_");
GST_INFO_OBJECT (eq1, "Preset saved");
eq2 = gst_check_setup_element ("equalizer-nbands");
g_object_set (G_OBJECT (eq2), "num-bands", 3, NULL);
/* load preset */
gst_preset_load_preset ((GstPreset *) eq2, "_testpreset_");
GST_INFO_OBJECT (eq1, "Preset loaded");
/* compare properties */
gst_child_proxy_get ((GstChildProxy *) eq2,
"band0::type", &type, "band0::gain", &gain, "band0::freq", &freq, NULL);
ck_assert_int_eq (type, 0);
fail_unless (gain == -3.0, NULL);
fail_unless (freq == 100.0, NULL);
gst_child_proxy_get ((GstChildProxy *) eq2,
"band1::type", &type, "band1::gain", &gain, "band1::freq", &freq, NULL);
ck_assert_int_eq (type, 1);
fail_unless (gain == +3.0, NULL);
fail_unless (freq == 1000.0, NULL);
gst_child_proxy_get ((GstChildProxy *) eq2,
"band2::type", &type, "band2::gain", &gain, "band2::freq", &freq, NULL);
ck_assert_int_eq (type, 2);
fail_unless (gain == +9.0, NULL);
fail_unless (freq == 10000.0, NULL);
gst_preset_delete_preset ((GstPreset *) eq1, "_testpreset_");
gst_check_teardown_element (eq1);
gst_check_teardown_element (eq2);
}
GST_END_TEST;
static Suite *
equalizer_suite (void)
{
Suite *s = suite_create ("equalizer");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_equalizer_5bands_passthrough);
tcase_add_test (tc_chain, test_equalizer_5bands_minus_24);
tcase_add_test (tc_chain, test_equalizer_5bands_plus_12);
tcase_add_test (tc_chain, test_equalizer_band_number_changing);
tcase_add_test (tc_chain, test_equalizer_presets);
return s;
}
GST_CHECK_MAIN (equalizer);