3 * unit test for GstBuffer
5 * Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>
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.
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.
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.
27 #include <gst/check/gstcheck.h>
29 GST_START_TEST (test_subbuffer)
31 GstBuffer *buffer, *sub;
32 GstMapInfo info, sinfo;
34 buffer = gst_buffer_new_and_alloc (4);
36 /* check sizes, buffer starts out empty */
37 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_WRITE));
38 fail_unless (info.size == 4, "buffer has wrong size");
39 fail_unless (info.maxsize >= 4, "buffer has wrong size");
40 memset (info.data, 0, 4);
41 gst_buffer_unmap (buffer, &info);
43 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
44 /* set some metadata */
45 GST_BUFFER_TIMESTAMP (buffer) = 1;
46 GST_BUFFER_DURATION (buffer) = 2;
47 GST_BUFFER_OFFSET (buffer) = 3;
48 GST_BUFFER_OFFSET_END (buffer) = 4;
50 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 1, 2);
51 fail_if (sub == NULL, "copy region of buffer returned NULL");
53 fail_unless (gst_buffer_map (sub, &sinfo, GST_MAP_READ));
54 fail_unless (sinfo.size == 2, "subbuffer has wrong size");
55 fail_unless (memcmp (info.data + 1, sinfo.data, 2) == 0,
56 "subbuffer contains the wrong data");
57 ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
58 fail_unless (GST_BUFFER_TIMESTAMP (sub) == -1,
59 "subbuffer has wrong timestamp");
60 fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
61 fail_unless (GST_BUFFER_OFFSET (sub) == -1, "subbuffer has wrong offset");
62 fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
63 "subbuffer has wrong offset end");
64 gst_buffer_unmap (sub, &sinfo);
65 gst_buffer_unref (sub);
67 /* create a subbuffer of size 0 */
68 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 1, 0);
69 fail_if (sub == NULL, "copy_region of buffer returned NULL");
70 fail_unless (gst_buffer_map (sub, &sinfo, GST_MAP_READ));
71 fail_unless (sinfo.size == 0, "subbuffer has wrong size");
72 ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
73 gst_buffer_unmap (sub, &sinfo);
74 gst_buffer_unref (sub);
76 /* test if metadata is copied, not a complete buffer copy so only the
77 * timestamp and offset fields are copied. */
78 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 1);
79 fail_if (sub == NULL, "copy_region of buffer returned NULL");
80 fail_unless (gst_buffer_get_size (sub) == 1, "subbuffer has wrong size");
81 fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
82 "subbuffer has wrong timestamp");
83 fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
84 fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
85 fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
86 "subbuffer has wrong offset end");
87 gst_buffer_unref (sub);
89 /* test if metadata is copied, a complete buffer is copied so all the timing
90 * fields should be copied. */
91 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 4);
92 fail_if (sub == NULL, "copy_region of buffer returned NULL");
93 fail_unless (gst_buffer_get_size (sub) == 4, "subbuffer has wrong size");
94 fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
95 "subbuffer has wrong timestamp");
96 fail_unless (GST_BUFFER_DURATION (sub) == 2, "subbuffer has wrong duration");
97 fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
98 fail_unless (GST_BUFFER_OFFSET_END (sub) == 4,
99 "subbuffer has wrong offset end");
102 gst_buffer_unref (sub);
104 gst_buffer_unmap (buffer, &info);
105 gst_buffer_unref (buffer);
110 GST_START_TEST (test_span)
112 GstBuffer *buffer, *sub1, *sub2, *span;
115 buffer = gst_buffer_new_and_alloc (4);
117 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_WRITE));
118 memcpy (info.data, "data", 4);
119 gst_buffer_unmap (buffer, &info);
121 ASSERT_CRITICAL (gst_buffer_append (NULL, NULL));
122 ASSERT_CRITICAL (gst_buffer_append (buffer, NULL));
123 ASSERT_CRITICAL (gst_buffer_append (NULL, buffer));
125 sub1 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 2);
126 fail_if (sub1 == NULL, "copy_region of buffer returned NULL");
128 sub2 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 2, 2);
129 fail_if (sub2 == NULL, "copy_region of buffer returned NULL");
131 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
132 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
133 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
135 /* span will create a new subbuffer from the parent */
136 gst_buffer_ref (sub1);
137 gst_buffer_ref (sub2);
138 span = gst_buffer_append (sub1, sub2);
139 fail_unless (gst_buffer_map (span, &info, GST_MAP_READ));
140 fail_unless (info.size == 4, "spanned buffer is wrong size");
141 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
142 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
143 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
144 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
145 fail_unless (memcmp (info.data, "data", 4) == 0,
146 "spanned buffer contains the wrong data");
147 gst_buffer_unmap (span, &info);
148 gst_buffer_unref (span);
149 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
151 /* span from non-contiguous buffers will create new buffers */
152 gst_buffer_ref (sub1);
153 gst_buffer_ref (sub2);
154 span = gst_buffer_append (sub2, sub1);
155 fail_unless (gst_buffer_map (span, &info, GST_MAP_READ));
156 fail_unless (info.size == 4, "spanned buffer is wrong size");
157 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
158 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
159 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
160 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
161 fail_unless (memcmp (info.data, "tada", 4) == 0,
162 "spanned buffer contains the wrong data");
163 gst_buffer_unmap (span, &info);
164 gst_buffer_unref (span);
165 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
168 gst_buffer_unref (sub1);
169 gst_buffer_unref (sub2);
170 gst_buffer_unref (buffer);
176 static const char ro_memory[] = "abcdefghijklmnopqrstuvwxyz";
179 create_read_only_buffer (void)
183 buf = gst_buffer_new ();
185 /* assign some read-only data to the new buffer */
186 gst_buffer_insert_memory (buf, -1,
187 gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY,
188 (gpointer) ro_memory, sizeof (ro_memory),
189 0, sizeof (ro_memory), NULL, NULL));
194 GST_START_TEST (test_make_writable)
196 GstBuffer *buf, *buf2;
199 /* create read-only buffer and make it writable */
200 buf = create_read_only_buffer ();
202 fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));
204 gst_buffer_unmap (buf, &info);
205 gst_buffer_unref (buf);
207 /* alloc'ed buffer with refcount 1 should be writable */
208 buf = gst_buffer_new_and_alloc (32);
209 buf2 = gst_buffer_make_writable (buf);
210 fail_unless (buf == buf2,
211 "_make_writable() should have returned same buffer");
212 gst_buffer_unref (buf2);
214 /* alloc'ed buffer with refcount >1 should be copied */
215 buf = gst_buffer_new_and_alloc (32);
216 gst_buffer_ref (buf);
217 buf2 = gst_buffer_make_writable (buf);
218 fail_unless (buf != buf2, "_make_writable() should have returned a copy!");
219 gst_buffer_unref (buf2);
220 gst_buffer_unref (buf);
225 GST_START_TEST (test_subbuffer_make_writable)
227 GstBuffer *buf, *sub_buf;
230 /* create sub-buffer of read-only buffer and make it writable */
231 buf = create_read_only_buffer ();
233 sub_buf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL, 0, 8);
235 fail_unless (gst_buffer_map (sub_buf, &info, GST_MAP_WRITE));
236 fail_if (info.data == NULL);
238 gst_buffer_unmap (sub_buf, &info);
239 gst_buffer_unref (sub_buf);
240 gst_buffer_unref (buf);
245 GST_START_TEST (test_metadata_writable)
247 GstBuffer *buffer, *sub1;
249 buffer = gst_buffer_new_and_alloc (4);
250 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
251 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
253 /* Buffer with refcount 1 should have writable metadata */
254 fail_unless (gst_buffer_is_writable (buffer) == TRUE);
256 /* Check that a buffer with refcount 2 does not have writable metadata */
257 gst_buffer_ref (buffer);
258 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 2);
259 fail_unless (gst_buffer_is_writable (buffer) == FALSE);
261 /* Check that make_metadata_writable produces a new sub-buffer with
262 * writable metadata. */
263 sub1 = gst_buffer_make_writable (buffer);
264 fail_if (sub1 == buffer);
265 fail_unless (gst_buffer_is_writable (sub1) == TRUE);
267 /* Check that make_metadata_writable() maintains the buffer flags */
268 fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DISCONT));
269 fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DELTA_UNIT));
271 /* Unset flags on writable buffer, then make sure they're still
272 * set on the original buffer */
273 GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DISCONT);
274 GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DELTA_UNIT);
275 fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT));
276 fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT));
278 /* Drop the subbuffer and check that the metadata is now writable again */
279 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
280 gst_buffer_unref (sub1);
281 fail_unless (gst_buffer_is_writable (buffer) == TRUE);
283 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
284 gst_buffer_unref (buffer);
289 GST_START_TEST (test_memcmp)
292 char buf[3] = { 0, 0, 0 };
294 buffer = gst_buffer_new_and_alloc (2);
295 gst_buffer_memset (buffer, 0, 0, 2);
297 fail_unless (gst_buffer_memcmp (buffer, 0, buf, 2) == 0);
298 fail_unless (gst_buffer_memcmp (buffer, 0, buf, 1) == 0);
299 fail_unless (gst_buffer_memcmp (buffer, 1, buf, 1) == 0);
300 fail_unless (gst_buffer_memcmp (buffer, 0, buf, 3) != 0);
301 fail_unless (gst_buffer_memcmp (buffer, 2, buf, 1) != 0);
302 fail_unless (gst_buffer_memcmp (buffer, 4, buf, 1) != 0);
304 gst_buffer_memset (buffer, 0, 0x20, 2);
305 fail_unless (gst_buffer_memcmp (buffer, 0, buf, 2) != 0);
306 fail_unless (gst_buffer_memcmp (buffer, 0, buf, 1) != 0);
307 fail_unless (gst_buffer_memcmp (buffer, 1, buf, 1) != 0);
308 fail_unless (gst_buffer_memcmp (buffer, 0, buf, 3) != 0);
309 fail_unless (gst_buffer_memcmp (buffer, 2, buf, 1) != 0);
311 gst_buffer_unref (buffer);
316 GST_START_TEST (test_copy)
318 GstBuffer *buffer, *copy;
319 GstMapInfo info, sinfo;
321 buffer = gst_buffer_new_and_alloc (4);
322 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
324 copy = gst_buffer_copy (buffer);
325 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
326 ASSERT_BUFFER_REFCOUNT (copy, "copy", 1);
327 /* buffers are copied and must point to different memory */
328 fail_if (buffer == copy);
330 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
331 fail_unless (gst_buffer_map (copy, &sinfo, GST_MAP_READ));
333 /* NOTE that data is refcounted */
334 fail_unless (info.size == sinfo.size);
335 /* GstBuffer was copied but the underlying GstMemory should be the same */
336 fail_unless (info.data == sinfo.data);
338 gst_buffer_unmap (copy, &sinfo);
339 gst_buffer_unmap (buffer, &info);
341 gst_buffer_unref (copy);
342 gst_buffer_unref (buffer);
344 /* a 0-sized buffer has NULL data as per docs */
345 buffer = gst_buffer_new_and_alloc (0);
346 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
347 fail_unless (info.data == NULL);
348 gst_buffer_unmap (buffer, &info);
350 /* copying a 0-sized buffer should not crash and also set
351 * the data member NULL. */
352 copy = gst_buffer_copy (buffer);
353 fail_unless (gst_buffer_map (copy, &info, GST_MAP_READ));
354 fail_unless (info.data == NULL);
355 gst_buffer_unmap (copy, &info);
357 gst_buffer_unref (copy);
358 gst_buffer_unref (buffer);
360 /* check if copy is an independent copy when written to */
361 buffer = gst_buffer_new_and_alloc (4);
362 gst_buffer_memset (buffer, 0, 0, 4);
363 copy = gst_buffer_copy (buffer);
364 fail_unless (gst_buffer_is_writable (copy));
365 gst_buffer_memset (copy, 0, 0x80, 4);
366 gst_buffer_map (buffer, &info, GST_MAP_READ);
367 fail_if (gst_buffer_memcmp (copy, 0, info.data, info.size) == 0);
368 gst_buffer_unmap (buffer, &info);
370 gst_buffer_unref (copy);
371 gst_buffer_unref (buffer);
373 /* copy should still be independent if copied when mapped */
374 buffer = gst_buffer_new_and_alloc (4);
375 gst_buffer_memset (buffer, 0, 0, 4);
376 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_WRITE));
377 copy = gst_buffer_copy (buffer);
378 fail_unless (gst_buffer_is_writable (copy));
379 gst_buffer_memset (copy, 0, 0x80, 4);
380 gst_buffer_unmap (buffer, &info);
381 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
382 fail_if (gst_buffer_memcmp (copy, 0, info.data, info.size) == 0);
383 gst_buffer_unmap (buffer, &info);
385 gst_buffer_unref (copy);
386 gst_buffer_unref (buffer);
388 /* check if a writable clone of a buffer is independent when written to */
389 buffer = gst_buffer_new_and_alloc (4);
390 gst_buffer_memset (buffer, 0, 0, 4);
391 copy = gst_buffer_ref (buffer);
392 copy = gst_buffer_make_writable (copy);
393 fail_unless (gst_buffer_is_writable (copy));
394 gst_buffer_memset (copy, 0, 0x80, 4);
395 gst_buffer_map (buffer, &info, GST_MAP_READ);
396 fail_if (gst_buffer_memcmp (copy, 0, info.data, info.size) == 0);
397 gst_buffer_unmap (buffer, &info);
399 gst_buffer_unref (copy);
400 gst_buffer_unref (buffer);
405 GST_START_TEST (test_copy_deep)
407 GstBuffer *buffer, *copy;
408 GstMapInfo info, sinfo;
410 buffer = gst_buffer_new_and_alloc (4);
411 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
413 copy = gst_buffer_copy_deep (buffer);
414 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
415 ASSERT_BUFFER_REFCOUNT (copy, "copy", 1);
416 /* buffers are copied and must point to different memory */
417 fail_if (buffer == copy);
419 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
420 fail_unless (gst_buffer_map (copy, &sinfo, GST_MAP_READ));
422 /* NOTE that data is refcounted */
423 fail_unless (info.size == sinfo.size);
424 /* copy_deep() forces new GstMemory to be used */
425 fail_unless (info.data != sinfo.data);
427 gst_buffer_unmap (copy, &sinfo);
428 gst_buffer_unmap (buffer, &info);
430 gst_buffer_unref (copy);
431 gst_buffer_unref (buffer);
436 GST_START_TEST (test_try_new_and_alloc)
441 /* special case: alloc of 0 bytes results in new buffer with NULL data */
442 buf = gst_buffer_new_and_alloc (0);
443 fail_unless (buf != NULL);
444 fail_unless (GST_IS_BUFFER (buf));
445 fail_unless (gst_buffer_map (buf, &info, GST_MAP_READ));
446 fail_unless (info.data == NULL);
447 gst_buffer_unmap (buf, &info);
448 gst_buffer_unref (buf);
450 /* normal alloc should still work */
451 buf = gst_buffer_new_and_alloc (640 * 480 * 4);
452 fail_unless (buf != NULL);
453 fail_unless (GST_IS_BUFFER (buf));
454 fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));
455 fail_unless (info.data != NULL);
456 fail_unless (info.size == (640 * 480 * 4));
457 info.data[640 * 479 * 4 + 479] = 0xff;
458 gst_buffer_unmap (buf, &info);
460 gst_buffer_unref (buf);
465 GST_START_TEST (test_size)
469 gsize maxalloc, maxalloc2, maxalloc3, maxalloc4;
470 gsize size, maxsize, offset;
472 /* one memory block */
473 buf = gst_buffer_new_allocate (NULL, 100, NULL);
475 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
476 fail_unless (size == 100);
477 fail_unless (offset == 0);
478 fail_unless (maxalloc >= 100);
480 mem = gst_buffer_get_memory (buf, 0);
481 gst_memory_resize (mem, 10, 70);
482 gst_memory_unref (mem);
484 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
485 fail_unless (size == 70);
486 fail_unless (offset == 10);
487 fail_unless (maxsize == maxalloc);
490 mem = gst_allocator_alloc (NULL, 100, NULL);
491 size = gst_memory_get_sizes (mem, &offset, &maxalloc2);
492 fail_unless (size == 100);
493 fail_unless (offset == 0);
494 fail_unless (maxalloc2 >= 100);
496 gst_memory_resize (mem, 20, 60);
497 size = gst_memory_get_sizes (mem, &offset, &maxsize);
498 fail_unless (size == 60);
499 fail_unless (offset == 20);
500 fail_unless (maxsize == maxalloc2);
503 gst_buffer_insert_memory (buf, -1, mem);
505 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
506 fail_unless (size == 130);
507 fail_unless (offset == 10);
508 /* the maxsize is the size of the first buffer plus the remaining size in the
510 fail_unless (maxalloc == 80 + (maxalloc2 - 20));
512 /* appending an empty block */
513 mem = gst_allocator_alloc (NULL, 100, NULL);
514 size = gst_memory_get_sizes (mem, &offset, &maxalloc3);
515 gst_memory_resize (mem, 0, 0);
516 gst_buffer_insert_memory (buf, -1, mem);
518 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
519 fail_unless (size == 130);
520 fail_unless (offset == 10);
521 /* the maxsize is the size of the first buffer plus the remaining size in the
522 * second buffer and the last empty buffer*/
523 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3);
525 /* prepending an empty block */
526 mem = gst_allocator_alloc (NULL, 100, NULL);
527 size = gst_memory_get_sizes (mem, &offset, &maxalloc4);
528 gst_memory_resize (mem, 0, 0);
529 gst_buffer_insert_memory (buf, 0, mem);
531 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
532 fail_unless (size == 130);
533 /* empty buffer maxsize can be used as offset */
534 fail_unless (offset == 10 + maxalloc4);
535 /* the maxsize is the size of the first buffer plus the remaining size in the
536 * second buffer and the last empty buffer*/
537 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3 + maxalloc4);
539 gst_buffer_unref (buf);
544 GST_START_TEST (test_resize)
548 gsize size, maxsize, offset;
550 /* one memory block */
551 buf = gst_buffer_new_allocate (NULL, 100, NULL);
553 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
554 fail_unless (size == 100);
555 fail_unless (offset == 0);
556 fail_unless (maxalloc >= 100);
558 ASSERT_CRITICAL (gst_buffer_resize (buf, 200, 50));
559 ASSERT_CRITICAL (gst_buffer_resize (buf, 0, 150));
560 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc));
561 ASSERT_CRITICAL (gst_buffer_resize (buf, maxalloc, 1));
563 /* this does nothing */
564 gst_buffer_resize (buf, 0, 100);
566 /* nothing should have changed */
567 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
568 fail_unless (size == 100);
569 fail_unless (offset == 0);
570 fail_unless (maxsize == maxalloc);
572 gst_buffer_resize (buf, 0, 50);
573 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
574 fail_unless (size == 50);
575 fail_unless (offset == 0);
576 fail_unless (maxsize == maxalloc);
578 gst_buffer_resize (buf, 0, 100);
579 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
580 fail_unless (size == 100);
581 fail_unless (offset == 0);
582 fail_unless (maxsize == maxalloc);
584 gst_buffer_resize (buf, 1, 99);
585 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
586 fail_unless (size == 99);
587 fail_unless (offset == 1);
588 fail_unless (maxsize == maxalloc);
590 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc - 1));
592 gst_buffer_resize (buf, 0, 99);
593 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
594 fail_unless (size == 99);
595 fail_unless (offset == 1);
596 fail_unless (maxsize == maxalloc);
598 gst_buffer_resize (buf, -1, 100);
599 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
600 fail_unless (size == 100);
601 fail_unless (offset == 0);
602 fail_unless (maxsize == maxalloc);
604 ASSERT_CRITICAL (gst_buffer_resize (buf, -1, 100));
606 gst_buffer_resize (buf, 50, 40);
607 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
608 fail_unless (size == 40);
609 fail_unless (offset == 50);
610 fail_unless (maxsize == maxalloc);
612 gst_buffer_resize (buf, -50, 100);
613 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
614 fail_unless (size == 100);
615 fail_unless (offset == 0);
616 fail_unless (maxsize == maxalloc);
618 gst_buffer_resize (buf, 0, 0);
619 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
620 fail_unless (size == 0);
621 fail_unless (offset == 0);
622 fail_unless (maxsize == maxalloc);
624 gst_buffer_resize (buf, 0, 100);
625 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
626 fail_unless (size == 100);
627 fail_unless (offset == 0);
628 fail_unless (maxsize == maxalloc);
630 gst_buffer_resize (buf, 0, 100);
631 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
632 fail_unless (size == 100);
633 fail_unless (offset == 0);
634 fail_unless (maxsize == maxalloc);
636 gst_buffer_unref (buf);
641 GST_START_TEST (test_map)
644 GstMapInfo map, map2;
648 buf = gst_buffer_new ();
649 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
650 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
652 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
653 fail_unless (size == 100);
654 fail_unless (offset == 0);
655 fail_unless (maxalloc >= 100);
656 fail_unless (gst_buffer_n_memory (buf) == 2);
659 gst_buffer_ref (buf);
660 /* map should merge */
661 gst_buffer_map (buf, &map, GST_MAP_READ);
662 /* merged memory is not stored */
663 fail_unless (gst_buffer_n_memory (buf) == 2);
664 gst_buffer_unmap (buf, &map);
666 fail_unless (gst_buffer_n_memory (buf) == 2);
668 /* can't map write on readonly buffer */
669 ASSERT_CRITICAL (gst_buffer_map (buf, &map, GST_MAP_WRITE));
670 /* make writable again */
671 gst_buffer_unref (buf);
673 /* should merge and store */
674 gst_buffer_map (buf, &map, GST_MAP_READ);
675 fail_unless (gst_buffer_n_memory (buf) == 1);
676 gst_buffer_unmap (buf, &map);
678 gst_buffer_map (buf, &map, GST_MAP_WRITE);
679 gst_buffer_unmap (buf, &map);
681 /* mapping same kind should be ok using same memory */
682 gst_buffer_map (buf, &map, GST_MAP_WRITE);
683 fail_unless (gst_buffer_map (buf, &map2, GST_MAP_WRITE));
684 fail_unless (map.memory == map2.memory);
685 gst_buffer_unmap (buf, &map2);
686 gst_buffer_unmap (buf, &map);
688 /* ... but different kind should give temporary memory */
689 gst_buffer_map (buf, &map, GST_MAP_WRITE);
690 fail_unless (gst_buffer_map (buf, &map2, GST_MAP_READ));
691 fail_if (map.memory == map2.memory);
692 gst_buffer_unmap (buf, &map2);
693 gst_buffer_unmap (buf, &map);
695 gst_buffer_unref (buf);
700 GST_START_TEST (test_map_range)
707 buf = gst_buffer_new ();
708 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
709 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
710 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
712 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
713 fail_unless (size == 150);
714 fail_unless (offset == 0);
715 fail_unless (maxalloc >= 150);
716 fail_unless (gst_buffer_n_memory (buf) == 3);
718 gst_buffer_ref (buf);
719 /* map should merge */
720 gst_buffer_map_range (buf, 1, 2, &map, GST_MAP_READ);
721 /* merged memory is not stored */
722 fail_unless (gst_buffer_n_memory (buf) == 3);
723 fail_unless (map.size == 100);
724 gst_buffer_unmap (buf, &map);
726 fail_unless (gst_buffer_n_memory (buf) == 3);
728 gst_buffer_unref (buf);
730 /* map should merge */
731 gst_buffer_map_range (buf, 1, 2, &map, GST_MAP_READ);
732 /* merged memory is stored */
733 fail_unless (gst_buffer_n_memory (buf) == 2);
734 fail_unless (map.size == 100);
735 gst_buffer_unmap (buf, &map);
737 fail_unless (gst_buffer_n_memory (buf) == 2);
739 /* should merge and store */
740 gst_buffer_map (buf, &map, GST_MAP_READ);
741 fail_unless (gst_buffer_n_memory (buf) == 1);
742 gst_buffer_unmap (buf, &map);
744 gst_buffer_unref (buf);
749 GST_START_TEST (test_find)
756 buf = gst_buffer_new ();
757 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
758 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 10, NULL));
759 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 15, NULL));
760 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
762 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
763 fail_unless (size == 25);
764 fail_unless (offset >= 0);
765 fail_unless (maxalloc >= 25);
766 fail_unless (gst_buffer_n_memory (buf) == 4);
768 fail_unless (gst_buffer_find_memory (buf, 0, 5, &idx, &length, &offset));
769 fail_unless (idx == 1);
770 fail_unless (length == 1);
771 fail_unless (offset == 0);
773 fail_unless (gst_buffer_find_memory (buf, 0, 10, &idx, &length, &offset));
774 fail_unless (idx == 1);
775 fail_unless (length == 1);
776 fail_unless (offset == 0);
778 fail_unless (gst_buffer_find_memory (buf, 5, 4, &idx, &length, &offset));
779 fail_unless (idx == 1);
780 fail_unless (length == 1);
781 fail_unless (offset == 5);
783 fail_unless (gst_buffer_find_memory (buf, 5, 5, &idx, &length, &offset));
784 fail_unless (idx == 1);
785 fail_unless (length == 1);
786 fail_unless (offset == 5);
788 fail_unless (gst_buffer_find_memory (buf, 5, 6, &idx, &length, &offset));
789 fail_unless (idx == 1);
790 fail_unless (length == 2);
791 fail_unless (offset == 5);
793 fail_unless (gst_buffer_find_memory (buf, 10, 6, &idx, &length, &offset));
794 fail_unless (idx == 2);
795 fail_unless (length == 1);
796 fail_unless (offset == 0);
798 fail_unless (gst_buffer_find_memory (buf, 10, 15, &idx, &length, &offset));
799 fail_unless (idx == 2);
800 fail_unless (length == 1);
801 fail_unless (offset == 0);
803 fail_unless (gst_buffer_find_memory (buf, 11, 14, &idx, &length, &offset));
804 fail_unless (idx == 2);
805 fail_unless (length == 1);
806 fail_unless (offset == 1);
808 fail_unless (gst_buffer_find_memory (buf, 0, 25, &idx, &length, &offset));
809 fail_unless (idx == 1);
810 fail_unless (length == 2);
811 fail_unless (offset == 0);
813 fail_unless (gst_buffer_find_memory (buf, 24, 0, &idx, &length, &offset));
814 fail_unless (idx == 2);
815 fail_unless (length == 1);
816 fail_unless (offset == 14);
818 fail_if (gst_buffer_find_memory (buf, 11, 15, &idx, &length, &offset));
819 fail_if (gst_buffer_find_memory (buf, 0, 26, &idx, &length, &offset));
820 fail_if (gst_buffer_find_memory (buf, 25, 0, &idx, &length, &offset));
822 fail_unless (gst_buffer_find_memory (buf, 1, -1, &idx, &length, &offset));
823 fail_unless (idx == 1);
824 fail_unless (length == 3);
825 fail_unless (offset == 1);
827 gst_buffer_unref (buf);
832 GST_START_TEST (test_fill)
835 guint8 data[1024], data2[25];
838 buf = gst_buffer_new ();
839 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
840 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 10, NULL));
841 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 15, NULL));
842 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
844 for (i = 0; i < G_N_ELEMENTS (data); ++i)
847 /* a NULL src pointer should be ok if the src length is 0 bytes */
848 fail_unless_equals_int (gst_buffer_fill (buf, 0, NULL, 0), 0);
849 fail_unless_equals_int (gst_buffer_fill (buf, 20, NULL, 0), 0);
850 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 0), 0);
852 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 1), 1);
853 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 11), 11);
854 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 15), 15);
855 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 25), 25);
856 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 26), 25);
857 fail_unless_equals_int (gst_buffer_fill (buf, 1, data, 26), 24);
858 fail_unless_equals_int (gst_buffer_fill (buf, 10, data, 100), 15);
859 fail_unless_equals_int (gst_buffer_fill (buf, 11, data, 100), 14);
860 fail_unless_equals_int (gst_buffer_fill (buf, 25, data, 100), 0);
862 fail_unless_equals_int (gst_buffer_fill (buf, 0, data + 10, 25), 25);
863 fail_unless_equals_int (gst_buffer_extract (buf, 0, data2, 25), 25);
864 fail_unless (memcmp (data2, data + 10, 25) == 0);
866 gst_buffer_unref (buf);
871 GST_START_TEST (test_parent_buffer_meta)
873 GstBuffer *buf, *parent;
874 GstParentBufferMeta *meta;
876 buf = gst_buffer_new ();
877 parent = gst_buffer_new ();
879 gst_buffer_add_parent_buffer_meta (buf, parent);
880 meta = gst_buffer_get_parent_buffer_meta (buf);
882 fail_unless (parent == meta->buffer);
884 gst_buffer_unref (buf);
885 gst_buffer_unref (parent);
890 GST_START_TEST (test_writable_memory)
895 buf = gst_buffer_new_and_alloc (10);
896 /* make buffer read-only */
897 gst_buffer_ref (buf);
899 mem = gst_buffer_peek_memory (buf, 0);
900 fail_if (gst_memory_is_writable (mem));
902 gst_buffer_unref (buf);
903 gst_buffer_unref (buf);
909 gst_buffer_suite (void)
911 Suite *s = suite_create ("GstBuffer");
912 TCase *tc_chain = tcase_create ("general");
914 suite_add_tcase (s, tc_chain);
915 tcase_add_test (tc_chain, test_subbuffer);
916 tcase_add_test (tc_chain, test_subbuffer_make_writable);
917 tcase_add_test (tc_chain, test_make_writable);
918 tcase_add_test (tc_chain, test_span);
919 tcase_add_test (tc_chain, test_metadata_writable);
920 tcase_add_test (tc_chain, test_memcmp);
921 tcase_add_test (tc_chain, test_copy);
922 tcase_add_test (tc_chain, test_copy_deep);
923 tcase_add_test (tc_chain, test_try_new_and_alloc);
924 tcase_add_test (tc_chain, test_size);
925 tcase_add_test (tc_chain, test_resize);
926 tcase_add_test (tc_chain, test_map);
927 tcase_add_test (tc_chain, test_map_range);
928 tcase_add_test (tc_chain, test_find);
929 tcase_add_test (tc_chain, test_fill);
930 tcase_add_test (tc_chain, test_parent_buffer_meta);
931 tcase_add_test (tc_chain, test_writable_memory);
936 GST_CHECK_MAIN (gst_buffer);