1 /* GStreamer
2 *
3 * Copyright (C) 2008 Sebastian Dröge <slomo@circular-chaos.org>
4 *
5 * equalizer.c: Unit test for the equalizer element
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public License
9 * as published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 */
22
23 #include <gst/gst.h>
24 #include <gst/audio/audio.h>
25 #include <gst/base/gstbasetransform.h>
26 #include <gst/check/gstcheck.h>
27
28 #include <math.h>
29
30 /* For ease of programming we use globals to keep refs for our floating
31 * src and sink pads we create; otherwise we always have to do get_pad,
32 * get_peer, and then remove references in every test function */
33 GstPad *mysrcpad, *mysinkpad;
34
35 #define EQUALIZER_CAPS_STRING \
36 "audio/x-raw, " \
37 "format = (string) "GST_AUDIO_NE (F64) ", " \
38 "layout = (string) interleaved, " \
39 "channels = (int) 1, " \
40 "rate = (int) 48000"
41
42 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
43 GST_PAD_SINK,
44 GST_PAD_ALWAYS,
45 GST_STATIC_CAPS ("audio/x-raw, "
46 "format = (string) " GST_AUDIO_NE (F64) ", "
47 "layout = (string) interleaved, "
48 "channels = (int) 1, " "rate = (int) 48000")
49 );
50 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
51 GST_PAD_SRC,
52 GST_PAD_ALWAYS,
53 GST_STATIC_CAPS ("audio/x-raw, "
54 "format = (string) " GST_AUDIO_NE (F64) ", "
55 "layout = (string) interleaved, "
56 "channels = (int) 1, " "rate = (int) 48000")
57 );
58
59 static GstElement *
setup_equalizer(void)60 setup_equalizer (void)
61 {
62 GstElement *equalizer;
63
64 GST_DEBUG ("setup_equalizer");
65 equalizer = gst_check_setup_element ("equalizer-nbands");
66 mysrcpad = gst_check_setup_src_pad (equalizer, &srctemplate);
67 mysinkpad = gst_check_setup_sink_pad (equalizer, &sinktemplate);
68 gst_pad_set_active (mysrcpad, TRUE);
69 gst_pad_set_active (mysinkpad, TRUE);
70
71 return equalizer;
72 }
73
74 static void
cleanup_equalizer(GstElement * equalizer)75 cleanup_equalizer (GstElement * equalizer)
76 {
77 GST_DEBUG ("cleanup_equalizer");
78
79 g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);
80 g_list_free (buffers);
81 buffers = NULL;
82
83 gst_pad_set_active (mysrcpad, FALSE);
84 gst_pad_set_active (mysinkpad, FALSE);
85 gst_check_teardown_src_pad (equalizer);
86 gst_check_teardown_sink_pad (equalizer);
87 gst_check_teardown_element (equalizer);
88 }
89
GST_START_TEST(test_equalizer_5bands_passthrough)90 GST_START_TEST (test_equalizer_5bands_passthrough)
91 {
92 GstElement *equalizer;
93 GstBuffer *inbuffer;
94 GstCaps *caps;
95 gdouble *in, *res;
96 gint i;
97 GstMapInfo map;
98
99 equalizer = setup_equalizer ();
100 g_object_set (G_OBJECT (equalizer), "num-bands", 5, NULL);
101
102 fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
103 (equalizer)), 5);
104
105 fail_unless (gst_element_set_state (equalizer,
106 GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
107 "could not set to playing");
108
109 inbuffer = gst_buffer_new_and_alloc (1024 * sizeof (gdouble));
110 gst_buffer_map (inbuffer, &map, GST_MAP_WRITE);
111 in = (gdouble *) map.data;
112 for (i = 0; i < 1024; i++)
113 in[i] = g_random_double_range (-1.0, 1.0);
114 gst_buffer_unmap (inbuffer, &map);
115
116 caps = gst_caps_from_string (EQUALIZER_CAPS_STRING);
117 gst_check_setup_events (mysrcpad, equalizer, caps, GST_FORMAT_TIME);
118 gst_caps_unref (caps);
119 ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
120
121 /* pushing gives away my reference ... */
122 fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
123 fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
124 /* ... and puts a new buffer on the global list */
125 fail_unless (g_list_length (buffers) == 1);
126
127 gst_buffer_map (GST_BUFFER (buffers->data), &map, GST_MAP_READ);
128 res = (gdouble *) map.data;
129
130 for (i = 0; i < 1024; i++)
131 fail_unless_equals_float (in[i], res[i]);
132 gst_buffer_unmap (GST_BUFFER (buffers->data), &map);
133
134 /* cleanup */
135 cleanup_equalizer (equalizer);
136 }
137
138 GST_END_TEST;
139
GST_START_TEST(test_equalizer_5bands_minus_24)140 GST_START_TEST (test_equalizer_5bands_minus_24)
141 {
142 GstElement *equalizer;
143 GstBuffer *inbuffer;
144 GstCaps *caps;
145 gdouble *in, *res, rms_in, rms_out;
146 gint i;
147 GstMapInfo map;
148
149 equalizer = setup_equalizer ();
150 g_object_set (G_OBJECT (equalizer), "num-bands", 5, NULL);
151
152 fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
153 (equalizer)), 5);
154
155 for (i = 0; i < 5; i++) {
156 GObject *band =
157 gst_child_proxy_get_child_by_index (GST_CHILD_PROXY (equalizer), i);
158 fail_unless (band != NULL);
159
160 g_object_set (band, "gain", -24.0, NULL);
161 g_object_unref (band);
162 }
163
164 fail_unless (gst_element_set_state (equalizer,
165 GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
166 "could not set to playing");
167
168 inbuffer = gst_buffer_new_and_alloc (1024 * sizeof (gdouble));
169 gst_buffer_map (inbuffer, &map, GST_MAP_WRITE);
170 in = (gdouble *) map.data;
171 for (i = 0; i < 1024; i++)
172 in[i] = g_random_double_range (-1.0, 1.0);
173 gst_buffer_unmap (inbuffer, &map);
174
175 rms_in = 0.0;
176 for (i = 0; i < 1024; i++)
177 rms_in += in[i] * in[i];
178 rms_in = sqrt (rms_in / 1024);
179
180 caps = gst_caps_from_string (EQUALIZER_CAPS_STRING);
181 gst_check_setup_events (mysrcpad, equalizer, caps, GST_FORMAT_TIME);
182 gst_caps_unref (caps);
183 ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
184
185 /* pushing gives away my reference ... */
186 fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
187 fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
188 /* ... and puts a new buffer on the global list */
189 fail_unless (g_list_length (buffers) == 1);
190
191 gst_buffer_map (GST_BUFFER (buffers->data), &map, GST_MAP_READ);
192 res = (gdouble *) map.data;
193
194 rms_out = 0.0;
195 for (i = 0; i < 1024; i++)
196 rms_out += res[i] * res[i];
197 rms_out = sqrt (rms_out / 1024);
198 gst_buffer_unmap (GST_BUFFER (buffers->data), &map);
199
200 fail_unless (rms_in > rms_out);
201
202 /* cleanup */
203 cleanup_equalizer (equalizer);
204 }
205
206 GST_END_TEST;
207
GST_START_TEST(test_equalizer_5bands_plus_12)208 GST_START_TEST (test_equalizer_5bands_plus_12)
209 {
210 GstElement *equalizer;
211 GstBuffer *inbuffer;
212 GstCaps *caps;
213 gdouble *in, *res, rms_in, rms_out;
214 gint i;
215 GstMapInfo map;
216
217 equalizer = setup_equalizer ();
218 g_object_set (G_OBJECT (equalizer), "num-bands", 5, NULL);
219
220 fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
221 (equalizer)), 5);
222
223 for (i = 0; i < 5; i++) {
224 GObject *band =
225 gst_child_proxy_get_child_by_index (GST_CHILD_PROXY (equalizer), i);
226 fail_unless (band != NULL);
227
228 g_object_set (band, "gain", 12.0, NULL);
229 g_object_unref (band);
230 }
231
232 fail_unless (gst_element_set_state (equalizer,
233 GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
234 "could not set to playing");
235
236 inbuffer = gst_buffer_new_and_alloc (1024 * sizeof (gdouble));
237 gst_buffer_map (inbuffer, &map, GST_MAP_WRITE);
238 in = (gdouble *) map.data;
239 for (i = 0; i < 1024; i++)
240 in[i] = g_random_double_range (-1.0, 1.0);
241 gst_buffer_unmap (inbuffer, &map);
242
243 rms_in = 0.0;
244 for (i = 0; i < 1024; i++)
245 rms_in += in[i] * in[i];
246 rms_in = sqrt (rms_in / 1024);
247
248 caps = gst_caps_from_string (EQUALIZER_CAPS_STRING);
249 gst_check_setup_events (mysrcpad, equalizer, caps, GST_FORMAT_TIME);
250 gst_caps_unref (caps);
251 ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
252
253 /* pushing gives away my reference ... */
254 fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
255 fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
256 /* ... and puts a new buffer on the global list */
257 fail_unless (g_list_length (buffers) == 1);
258
259 gst_buffer_map (GST_BUFFER (buffers->data), &map, GST_MAP_READ);
260 res = (gdouble *) map.data;
261
262 rms_out = 0.0;
263 for (i = 0; i < 1024; i++)
264 rms_out += res[i] * res[i];
265 rms_out = sqrt (rms_out / 1024);
266 gst_buffer_unmap (GST_BUFFER (buffers->data), &map);
267
268 fail_unless (rms_in < rms_out);
269
270 /* cleanup */
271 cleanup_equalizer (equalizer);
272 }
273
274 GST_END_TEST;
275
GST_START_TEST(test_equalizer_band_number_changing)276 GST_START_TEST (test_equalizer_band_number_changing)
277 {
278 GstElement *equalizer;
279 gint i;
280
281 equalizer = setup_equalizer ();
282
283 g_object_set (G_OBJECT (equalizer), "num-bands", 5, NULL);
284 fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
285 (equalizer)), 5);
286
287 for (i = 0; i < 5; i++) {
288 GObject *band;
289
290 band = gst_child_proxy_get_child_by_index (GST_CHILD_PROXY (equalizer), i);
291 fail_unless (band != NULL);
292 g_object_unref (band);
293 }
294
295 g_object_set (G_OBJECT (equalizer), "num-bands", 10, NULL);
296 fail_unless_equals_int (gst_child_proxy_get_children_count (GST_CHILD_PROXY
297 (equalizer)), 10);
298
299 for (i = 0; i < 10; i++) {
300 GObject *band;
301
302 band = gst_child_proxy_get_child_by_index (GST_CHILD_PROXY (equalizer), i);
303 fail_unless (band != NULL);
304 g_object_unref (band);
305 }
306
307 /* cleanup */
308 cleanup_equalizer (equalizer);
309 }
310
311 GST_END_TEST;
312
GST_START_TEST(test_equalizer_presets)313 GST_START_TEST (test_equalizer_presets)
314 {
315 GstElement *eq1, *eq2;
316 gint type;
317 gdouble gain, freq;
318
319 eq1 = gst_check_setup_element ("equalizer-nbands");
320 g_object_set (G_OBJECT (eq1), "num-bands", 3, NULL);
321
322 /* set properties to non-defaults */
323 gst_child_proxy_set ((GstChildProxy *) eq1,
324 "band0::type", 0, "band0::gain", -3.0, "band0::freq", 100.0,
325 "band1::type", 1, "band1::gain", +3.0, "band1::freq", 1000.0,
326 "band2::type", 2, "band2::gain", +9.0, "band2::freq", 10000.0, NULL);
327
328 /* save preset */
329 gst_preset_save_preset ((GstPreset *) eq1, "_testpreset_");
330 GST_INFO_OBJECT (eq1, "Preset saved");
331
332 eq2 = gst_check_setup_element ("equalizer-nbands");
333 g_object_set (G_OBJECT (eq2), "num-bands", 3, NULL);
334
335 /* load preset */
336 gst_preset_load_preset ((GstPreset *) eq2, "_testpreset_");
337 GST_INFO_OBJECT (eq1, "Preset loaded");
338
339 /* compare properties */
340 gst_child_proxy_get ((GstChildProxy *) eq2,
341 "band0::type", &type, "band0::gain", &gain, "band0::freq", &freq, NULL);
342 ck_assert_int_eq (type, 0);
343 fail_unless (gain == -3.0, NULL);
344 fail_unless (freq == 100.0, NULL);
345 gst_child_proxy_get ((GstChildProxy *) eq2,
346 "band1::type", &type, "band1::gain", &gain, "band1::freq", &freq, NULL);
347 ck_assert_int_eq (type, 1);
348 fail_unless (gain == +3.0, NULL);
349 fail_unless (freq == 1000.0, NULL);
350 gst_child_proxy_get ((GstChildProxy *) eq2,
351 "band2::type", &type, "band2::gain", &gain, "band2::freq", &freq, NULL);
352 ck_assert_int_eq (type, 2);
353 fail_unless (gain == +9.0, NULL);
354 fail_unless (freq == 10000.0, NULL);
355
356 gst_preset_delete_preset ((GstPreset *) eq1, "_testpreset_");
357 gst_check_teardown_element (eq1);
358 gst_check_teardown_element (eq2);
359 }
360
361 GST_END_TEST;
362
363
364 static Suite *
equalizer_suite(void)365 equalizer_suite (void)
366 {
367 Suite *s = suite_create ("equalizer");
368 TCase *tc_chain = tcase_create ("general");
369
370 suite_add_tcase (s, tc_chain);
371 tcase_add_test (tc_chain, test_equalizer_5bands_passthrough);
372 tcase_add_test (tc_chain, test_equalizer_5bands_minus_24);
373 tcase_add_test (tc_chain, test_equalizer_5bands_plus_12);
374 tcase_add_test (tc_chain, test_equalizer_band_number_changing);
375 tcase_add_test (tc_chain, test_equalizer_presets);
376
377 return s;
378 }
379
380 GST_CHECK_MAIN (equalizer);
381