1 /* GStreamer
2 *
3 * unit test for the id3tag element
4 *
5 * Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23 #include <gst/check/gstcheck.h>
24
25 #include <gst/gst.h>
26 #include <string.h>
27
28 #define TEST_ARTIST "Ar T\303\255st"
29 #define TEST_TITLE "M\303\274llermilch!"
30 #define TEST_ALBUM "Boom"
31 #define TEST_DATE g_date_new_dmy(1,1,2006)
32 #define TEST_TRACK_NUMBER 7
33 #define TEST_TRACK_COUNT 19
34 #define TEST_VOLUME_NUMBER 2
35 #define TEST_VOLUME_COUNT 3
36 #define TEST_TRACK_GAIN 1.45
37 #define TEST_ALBUM_GAIN 0.78
38 #define TEST_TRACK_PEAK 0.83
39 #define TEST_ALBUM_PEAK 0.18
40 #define TEST_BPM 113.0
41
42 /* for dummy mp3 frame sized MP3_FRAME_SIZE bytes,
43 * start: ff fb b0 44 00 00 08 00 00 4b 00 00 00 00 00 00 */
44 static const guint8 mp3_dummyhdr[] = { 0xff, 0xfb, 0xb0, 0x44, 0x00, 0x00,
45 0x08, 0x00, 0x4b, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00
46 };
47
48 static const guint8 privatedata[] = { 0x99, 0x66, 0x33, 0x11, 0x22, 0x44 };
49
50 #define MP3_FRAME_SIZE 626
51
52 /* the peak and gain values are stored pretty roughly, so check that they're
53 * within 2% of the expected value.
54 */
55 #define fail_unless_sorta_equals_float(a, b) \
56 G_STMT_START { \
57 double first = a; \
58 double second = b; \
59 fail_unless(fabs (first - second) < (0.02 * fabs (first)), \
60 "'" #a "' (%g) is not equal to '" #b "' (%g)", first, second); \
61 } G_STMT_END;
62
63
64 static GstTagList *
test_taglib_id3mux_create_tags(guint32 mask)65 test_taglib_id3mux_create_tags (guint32 mask)
66 {
67 GstTagList *tags;
68
69 tags = gst_tag_list_new_empty ();
70
71 if (mask & (1 << 0)) {
72 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
73 GST_TAG_ARTIST, TEST_ARTIST, NULL);
74 }
75 if (mask & (1 << 1)) {
76 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
77 GST_TAG_TITLE, TEST_TITLE, NULL);
78 }
79 if (mask & (1 << 2)) {
80 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
81 GST_TAG_ALBUM, TEST_ALBUM, NULL);
82 }
83 if (mask & (1 << 3)) {
84 GDate *date;
85
86 date = TEST_DATE;
87 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP, GST_TAG_DATE, date, NULL);
88 g_date_free (date);
89 }
90 if (mask & (1 << 4)) {
91 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
92 GST_TAG_TRACK_NUMBER, TEST_TRACK_NUMBER, NULL);
93 }
94 if (mask & (1 << 5)) {
95 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
96 GST_TAG_TRACK_COUNT, TEST_TRACK_COUNT, NULL);
97 }
98 if (mask & (1 << 6)) {
99 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
100 GST_TAG_ALBUM_VOLUME_NUMBER, TEST_VOLUME_NUMBER, NULL);
101 }
102 if (mask & (1 << 7)) {
103 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
104 GST_TAG_ALBUM_VOLUME_COUNT, TEST_VOLUME_COUNT, NULL);
105 }
106 if (mask & (1 << 8)) {
107 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
108 GST_TAG_TRACK_GAIN, TEST_TRACK_GAIN, NULL);
109 }
110 if (mask & (1 << 9)) {
111 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
112 GST_TAG_ALBUM_GAIN, TEST_ALBUM_GAIN, NULL);
113 }
114 if (mask & (1 << 10)) {
115 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
116 GST_TAG_TRACK_PEAK, TEST_TRACK_PEAK, NULL);
117 }
118 if (mask & (1 << 11)) {
119 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
120 GST_TAG_ALBUM_PEAK, TEST_ALBUM_PEAK, NULL);
121 }
122 if (mask & (1 << 12)) {
123 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
124 GST_TAG_BEATS_PER_MINUTE, TEST_BPM, NULL);
125 }
126 if (mask & (1 << 13)) {
127 GstSample *sample;
128 GstBuffer *buf;
129
130 buf = gst_buffer_new_and_alloc (sizeof (privatedata));
131 gst_buffer_fill (buf, 0, privatedata, sizeof (privatedata));
132 sample = gst_sample_new (buf, NULL, NULL,
133 gst_structure_new ("ID3PrivateFrame",
134 "owner", G_TYPE_STRING, "me", NULL));
135 gst_buffer_unref (buf);
136 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP,
137 GST_TAG_PRIVATE_DATA, sample, NULL);
138 gst_sample_unref (sample);
139 }
140 if (mask & (1 << 14)) {
141 }
142 return tags;
143 }
144
145 static gboolean
utf_string_in_buf(GstBuffer * buf,const gchar * s,int v2version)146 utf_string_in_buf (GstBuffer * buf, const gchar * s, int v2version)
147 {
148 gint i, len;
149 gchar *free_str = NULL;
150 GstMapInfo map;
151
152 if (v2version == 3) {
153 free_str = g_convert (s, -1, "UTF-16LE", "UTF-8", NULL, NULL, NULL);
154 s = free_str;
155 }
156
157 len = strlen (s);
158 gst_buffer_map (buf, &map, GST_MAP_READ);
159 for (i = 0; i < (map.size - len); ++i) {
160 if (memcmp (map.data + i, s, len) == 0) {
161 gst_buffer_unmap (buf, &map);
162 g_free (free_str);
163 return TRUE;
164 }
165 }
166 gst_buffer_unmap (buf, &map);
167
168 g_free (free_str);
169 return FALSE;
170 }
171
172 static void
test_taglib_id3mux_check_tag_buffer(GstBuffer * buf,guint32 mask,int v2version)173 test_taglib_id3mux_check_tag_buffer (GstBuffer * buf, guint32 mask,
174 int v2version)
175 {
176 /* make sure our UTF-8 string hasn't been put into the tag as ISO-8859-1 */
177 if (mask & (1 << 0)) {
178 fail_unless (utf_string_in_buf (buf, TEST_ARTIST, v2version));
179 }
180 /* make sure our UTF-8 string hasn't been put into the tag as ISO-8859-1 */
181 if (mask & (1 << 1)) {
182 fail_unless (utf_string_in_buf (buf, TEST_TITLE, v2version));
183 }
184 /* make sure our UTF-8 string hasn't been put into the tag as ISO-8859-1 */
185 if (mask & (1 << 2)) {
186 fail_unless (utf_string_in_buf (buf, TEST_ALBUM, v2version));
187 }
188 }
189
190 static void
test_taglib_id3mux_check_tags(GstTagList * tags,guint32 mask,int v2version)191 test_taglib_id3mux_check_tags (GstTagList * tags, guint32 mask, int v2version)
192 {
193 if (mask & (1 << 0)) {
194 gchar *s = NULL;
195
196 fail_unless (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &s));
197 fail_unless (g_str_equal (s, TEST_ARTIST));
198 g_free (s);
199 }
200 if (mask & (1 << 1)) {
201 gchar *s = NULL;
202
203 fail_unless (gst_tag_list_get_string (tags, GST_TAG_TITLE, &s));
204 fail_unless (g_str_equal (s, TEST_TITLE));
205 g_free (s);
206 }
207 if (mask & (1 << 2)) {
208 gchar *s = NULL;
209
210 fail_unless (gst_tag_list_get_string (tags, GST_TAG_ALBUM, &s));
211 fail_unless (g_str_equal (s, TEST_ALBUM));
212 g_free (s);
213 }
214 if (mask & (1 << 3)) {
215 GDate *shouldbe, *date = NULL;
216
217 shouldbe = TEST_DATE;
218 fail_unless (gst_tag_list_get_date (tags, GST_TAG_DATE, &date));
219 fail_unless (g_date_compare (shouldbe, date) == 0);
220 g_date_free (shouldbe);
221 g_date_free (date);
222 }
223 if (mask & (1 << 4)) {
224 guint num;
225
226 fail_unless (gst_tag_list_get_uint (tags, GST_TAG_TRACK_NUMBER, &num));
227 fail_unless (num == TEST_TRACK_NUMBER);
228 }
229 if (mask & (1 << 5)) {
230 guint count;
231
232 fail_unless (gst_tag_list_get_uint (tags, GST_TAG_TRACK_COUNT, &count));
233 fail_unless (count == TEST_TRACK_COUNT);
234 }
235 if (mask & (1 << 6)) {
236 guint num;
237
238 fail_unless (gst_tag_list_get_uint (tags, GST_TAG_ALBUM_VOLUME_NUMBER,
239 &num));
240 fail_unless (num == TEST_VOLUME_NUMBER);
241 }
242 if (mask & (1 << 7)) {
243 guint count;
244
245 fail_unless (gst_tag_list_get_uint (tags, GST_TAG_ALBUM_VOLUME_COUNT,
246 &count));
247 fail_unless (count == TEST_VOLUME_COUNT);
248 }
249 if (mask & (1 << 8)) {
250 gdouble gain;
251
252 if (v2version == 4) {
253 fail_unless (gst_tag_list_get_double (tags, GST_TAG_TRACK_GAIN, &gain));
254 fail_unless_sorta_equals_float (gain, TEST_TRACK_GAIN);
255 }
256 }
257 if (mask & (1 << 9)) {
258 gdouble gain;
259
260 if (v2version == 4) {
261 fail_unless (gst_tag_list_get_double (tags, GST_TAG_ALBUM_GAIN, &gain));
262 fail_unless_sorta_equals_float (gain, TEST_ALBUM_GAIN);
263 }
264 }
265 if (mask & (1 << 10)) {
266 gdouble peak;
267
268 if (v2version == 4) {
269 fail_unless (gst_tag_list_get_double (tags, GST_TAG_TRACK_PEAK, &peak));
270 fail_unless_sorta_equals_float (peak, TEST_TRACK_PEAK);
271 }
272 }
273 if (mask & (1 << 11)) {
274 gdouble peak;
275
276 if (v2version == 4) {
277 fail_unless (gst_tag_list_get_double (tags, GST_TAG_ALBUM_PEAK, &peak));
278 fail_unless_sorta_equals_float (peak, TEST_ALBUM_PEAK);
279 }
280 }
281 if (mask & (1 << 12)) {
282 gdouble bpm;
283
284 fail_unless (gst_tag_list_get_double (tags, GST_TAG_BEATS_PER_MINUTE,
285 &bpm));
286 fail_unless_sorta_equals_float (bpm, TEST_BPM);
287 }
288 if (mask & (1 << 13)) {
289 GstSample *sample = NULL;
290 const GstStructure *info;
291 GstBuffer *buf;
292
293 fail_unless (gst_tag_list_get_sample (tags, GST_TAG_PRIVATE_DATA, &sample));
294 fail_unless (sample != NULL);
295 buf = gst_sample_get_buffer (sample);
296 fail_if (gst_buffer_memcmp (buf, 0, privatedata, sizeof (privatedata)));
297 info = gst_sample_get_info (sample);
298 fail_unless (gst_structure_has_name (info, "ID3PrivateFrame"));
299 fail_unless_equals_string (gst_structure_get_string (info, "owner"), "me");
300 gst_sample_unref (sample);
301 }
302 if (mask & (1 << 14)) {
303 }
304 }
305
306 static void
fill_mp3_buffer(GstElement * fakesrc,GstBuffer * buf,GstPad * pad,guint64 * p_offset)307 fill_mp3_buffer (GstElement * fakesrc, GstBuffer * buf, GstPad * pad,
308 guint64 * p_offset)
309 {
310 fail_unless (gst_buffer_get_size (buf) == MP3_FRAME_SIZE);
311
312 GST_LOG ("filling buffer with fake mp3 data, offset = %" G_GUINT64_FORMAT,
313 *p_offset);
314
315 gst_buffer_fill (buf, 0, mp3_dummyhdr, sizeof (mp3_dummyhdr));
316
317 #if 0
318 /* can't use gst_buffer_set_caps() here because the metadata isn't writable
319 * because of the extra refcounts taken by the signal emission mechanism;
320 * we know it's fine to use GST_BUFFER_CAPS() here though */
321 GST_BUFFER_CAPS (buf) = gst_caps_new_simple ("audio/mpeg", "mpegversion",
322 G_TYPE_INT, 1, "layer", G_TYPE_INT, 3, NULL);
323 #endif
324
325 GST_BUFFER_OFFSET (buf) = *p_offset;
326 *p_offset += gst_buffer_get_size (buf);
327 }
328
329 static void
got_buffer(GstElement * fakesink,GstBuffer * buf,GstPad * pad,GstBuffer ** p_buf)330 got_buffer (GstElement * fakesink, GstBuffer * buf, GstPad * pad,
331 GstBuffer ** p_buf)
332 {
333 GstMapInfo map;
334 gint64 off;
335 guint size;
336
337 off = GST_BUFFER_OFFSET (buf);
338 gst_buffer_map (buf, &map, GST_MAP_READ);
339 size = map.size;
340
341 GST_LOG ("got buffer, size=%u, offset=%" G_GINT64_FORMAT, size, off);
342
343 fail_unless (GST_BUFFER_OFFSET_IS_VALID (buf));
344
345 if (*p_buf == NULL || (off + size) > gst_buffer_get_size (*p_buf)) {
346 GstBuffer *newbuf;
347
348 /* not very elegant, but who cares */
349 newbuf = gst_buffer_new_and_alloc (off + size);
350 if (*p_buf) {
351 GstMapInfo pmap;
352
353 gst_buffer_map (*p_buf, &pmap, GST_MAP_READ);
354 gst_buffer_fill (newbuf, 0, pmap.data, pmap.size);
355 gst_buffer_unmap (*p_buf, &pmap);
356 }
357 gst_buffer_fill (newbuf, off, map.data, size);
358
359 if (*p_buf)
360 gst_buffer_unref (*p_buf);
361 *p_buf = newbuf;
362 } else {
363 gst_buffer_fill (*p_buf, off, map.data, size);
364 }
365 gst_buffer_unmap (buf, &map);
366 }
367
368 static void
test_taglib_id3mux_check_output_buffer(GstBuffer * buf)369 test_taglib_id3mux_check_output_buffer (GstBuffer * buf)
370 {
371 GstMapInfo map;
372 guint off;
373
374 gst_buffer_map (buf, &map, GST_MAP_READ);
375
376 g_assert (map.size % MP3_FRAME_SIZE == 0);
377
378 for (off = 0; off < map.size; off += MP3_FRAME_SIZE) {
379 fail_unless (memcmp (map.data + off, mp3_dummyhdr,
380 sizeof (mp3_dummyhdr)) == 0);
381 }
382 gst_buffer_unmap (buf, &map);
383 }
384
385 static void
identity_cb(GstElement * identity,GstBuffer * buf,GstBuffer ** p_tagbuf)386 identity_cb (GstElement * identity, GstBuffer * buf, GstBuffer ** p_tagbuf)
387 {
388 if (*p_tagbuf == NULL) {
389 *p_tagbuf = gst_buffer_ref (buf);
390 }
391 }
392
393 static void
test_taglib_id3mux_with_tags(GstTagList * tags,guint32 mask,int v2version)394 test_taglib_id3mux_with_tags (GstTagList * tags, guint32 mask, int v2version)
395 {
396 GstMessage *msg;
397 GstTagList *tags_read = NULL;
398 GstElement *pipeline, *id3mux, *id3demux, *fakesrc, *identity, *fakesink;
399 GstBus *bus;
400 guint64 offset;
401 GstBuffer *outbuf = NULL;
402 GstBuffer *tagbuf = NULL;
403 GstStateChangeReturn state_result;
404
405 pipeline = gst_pipeline_new ("pipeline");
406 g_assert (pipeline != NULL);
407
408 fakesrc = gst_element_factory_make ("fakesrc", "fakesrc");
409 g_assert (fakesrc != NULL);
410
411 id3mux = gst_element_factory_make ("id3mux", "id3mux");
412 g_assert (id3mux != NULL);
413 g_object_set (id3mux, "v2-version", v2version, NULL);
414
415 identity = gst_element_factory_make ("identity", "identity");
416 g_assert (identity != NULL);
417
418 id3demux = gst_element_factory_make ("id3demux", "id3demux");
419 g_assert (id3demux != NULL);
420
421 fakesink = gst_element_factory_make ("fakesink", "fakesink");
422 g_assert (fakesink != NULL);
423
424 /* set up sink */
425 outbuf = NULL;
426 g_object_set (fakesink, "signal-handoffs", TRUE, NULL);
427 g_signal_connect (fakesink, "handoff", G_CALLBACK (got_buffer), &outbuf);
428
429 gst_bin_add (GST_BIN (pipeline), fakesrc);
430 gst_bin_add (GST_BIN (pipeline), id3mux);
431 gst_bin_add (GST_BIN (pipeline), identity);
432 gst_bin_add (GST_BIN (pipeline), id3demux);
433 gst_bin_add (GST_BIN (pipeline), fakesink);
434
435 gst_tag_setter_merge_tags (GST_TAG_SETTER (id3mux), tags,
436 GST_TAG_MERGE_APPEND);
437
438 gst_element_link_many (fakesrc, id3mux, identity, id3demux, fakesink, NULL);
439
440 /* set up source */
441 g_object_set (fakesrc, "signal-handoffs", TRUE, "can-activate-pull", FALSE,
442 "filltype", 2, "sizetype", 2, "sizemax", MP3_FRAME_SIZE,
443 "num-buffers", 16, NULL);
444
445 offset = 0;
446 g_signal_connect (fakesrc, "handoff", G_CALLBACK (fill_mp3_buffer), &offset);
447
448 /* set up identity to catch tag buffer */
449 g_signal_connect (identity, "handoff", G_CALLBACK (identity_cb), &tagbuf);
450
451 GST_LOG ("setting and getting state ...");
452 gst_element_set_state (pipeline, GST_STATE_PLAYING);
453 state_result = gst_element_get_state (pipeline, NULL, NULL, -1);
454 fail_unless (state_result == GST_STATE_CHANGE_SUCCESS,
455 "Unexpected result from get_state(). Expected success, got %d",
456 state_result);
457
458 bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
459
460 GST_LOG ("Waiting for tag ...");
461 msg =
462 gst_bus_poll (bus, GST_MESSAGE_TAG | GST_MESSAGE_EOS | GST_MESSAGE_ERROR,
463 -1);
464 if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
465 GError *err;
466 gchar *dbg;
467
468 gst_message_parse_error (msg, &err, &dbg);
469 g_printerr ("ERROR from element %s: %s\n%s\n",
470 GST_OBJECT_NAME (msg->src), err->message, GST_STR_NULL (dbg));
471 g_error_free (err);
472 g_free (dbg);
473 } else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_EOS) {
474 g_printerr ("EOS message, but were waiting for TAGS!\n");
475 }
476 fail_unless (msg->type == GST_MESSAGE_TAG);
477
478 gst_message_parse_tag (msg, &tags_read);
479 gst_message_unref (msg);
480
481 GST_LOG ("Got tags: %" GST_PTR_FORMAT, tags_read);
482 test_taglib_id3mux_check_tags (tags_read, mask, v2version);
483 gst_tag_list_unref (tags_read);
484
485 fail_unless (tagbuf != NULL);
486 test_taglib_id3mux_check_tag_buffer (tagbuf, mask, v2version);
487 gst_buffer_unref (tagbuf);
488
489 GST_LOG ("Waiting for EOS ...");
490 msg = gst_bus_poll (bus, GST_MESSAGE_EOS | GST_MESSAGE_ERROR, -1);
491 if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
492 GError *err;
493 gchar *dbg;
494
495 gst_message_parse_error (msg, &err, &dbg);
496 g_printerr ("ERROR from element %s: %s\n%s\n",
497 GST_OBJECT_NAME (msg->src), err->message, GST_STR_NULL (dbg));
498 g_error_free (err);
499 g_free (dbg);
500 }
501 fail_unless (msg->type == GST_MESSAGE_EOS);
502 gst_message_unref (msg);
503
504 gst_object_unref (bus);
505
506 GST_LOG ("Got EOS, shutting down ...");
507 gst_element_set_state (pipeline, GST_STATE_NULL);
508 gst_object_unref (pipeline);
509
510 test_taglib_id3mux_check_output_buffer (outbuf);
511 gst_buffer_unref (outbuf);
512
513 GST_LOG ("Done");
514 }
515
516 static void
run_id3mux_test(int v2version)517 run_id3mux_test (int v2version)
518 {
519 GstTagList *tags;
520 gint i;
521
522 g_random_set_seed (247166295);
523
524 /* internal consistency check */
525 tags = test_taglib_id3mux_create_tags (0xFFFFFFFF);
526 test_taglib_id3mux_check_tags (tags, 0xFFFFFFFF, v2version);
527 gst_tag_list_unref (tags);
528
529 /* now the real tests */
530 for (i = 0; i < 50; ++i) {
531 guint32 mask;
532
533 mask = g_random_int ();
534 GST_LOG ("tag mask = %08x (i=%d)", mask, i);
535
536 if (mask == 0)
537 continue;
538
539 /* create tags */
540 tags = test_taglib_id3mux_create_tags (mask);
541 GST_LOG ("tags for mask %08x = %" GST_PTR_FORMAT, mask, tags);
542
543 /* double-check for internal consistency */
544 test_taglib_id3mux_check_tags (tags, mask, v2version);
545
546 /* test with pipeline */
547 test_taglib_id3mux_with_tags (tags, mask, v2version);
548
549 /* free tags */
550 gst_tag_list_unref (tags);
551 }
552 }
553
GST_START_TEST(test_id3mux_v2_3)554 GST_START_TEST (test_id3mux_v2_3)
555 {
556 run_id3mux_test (3);
557 }
558
559 GST_END_TEST;
560
GST_START_TEST(test_id3mux_v2_4)561 GST_START_TEST (test_id3mux_v2_4)
562 {
563 run_id3mux_test (4);
564 }
565
566 GST_END_TEST;
567
568 static Suite *
id3mux_suite(void)569 id3mux_suite (void)
570 {
571 Suite *s = suite_create ("id3mux");
572 TCase *tc_chain = tcase_create ("general");
573
574 suite_add_tcase (s, tc_chain);
575
576 if (gst_registry_check_feature_version (gst_registry_get (), "id3demux",
577 GST_VERSION_MAJOR, GST_VERSION_MINOR, 0)) {
578 tcase_add_test (tc_chain, test_id3mux_v2_3);
579 tcase_add_test (tc_chain, test_id3mux_v2_4);
580 } else {
581 GST_WARNING ("id3demux element not available, skipping tests");
582 }
583
584 return s;
585 }
586
587 GST_CHECK_MAIN (id3mux);
588