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 #ifdef HAVE_VALGRIND_H
28 # include <valgrind/valgrind.h>
30 # define RUNNING_ON_VALGRIND FALSE
33 #include <gst/check/gstcheck.h>
35 GST_START_TEST (test_subbuffer)
37 GstBuffer *buffer, *sub;
38 GstMapInfo info, sinfo;
40 buffer = gst_buffer_new_and_alloc (4);
42 /* check sizes, buffer starts out empty */
43 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_WRITE));
44 fail_unless (info.size == 4, "buffer has wrong size");
45 fail_unless (info.maxsize >= 4, "buffer has wrong size");
46 memset (info.data, 0, 4);
47 gst_buffer_unmap (buffer, &info);
49 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
50 /* set some metadata */
51 GST_BUFFER_TIMESTAMP (buffer) = 1;
52 GST_BUFFER_DURATION (buffer) = 2;
53 GST_BUFFER_OFFSET (buffer) = 3;
54 GST_BUFFER_OFFSET_END (buffer) = 4;
56 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 1, 2);
57 fail_if (sub == NULL, "copy region of buffer returned NULL");
59 fail_unless (gst_buffer_map (sub, &sinfo, GST_MAP_READ));
60 fail_unless (sinfo.size == 2, "subbuffer has wrong size");
61 fail_unless (memcmp (info.data + 1, sinfo.data, 2) == 0,
62 "subbuffer contains the wrong data");
63 ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
64 fail_unless (GST_BUFFER_TIMESTAMP (sub) == -1,
65 "subbuffer has wrong timestamp");
66 fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
67 fail_unless (GST_BUFFER_OFFSET (sub) == -1, "subbuffer has wrong offset");
68 fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
69 "subbuffer has wrong offset end");
70 gst_buffer_unmap (sub, &sinfo);
71 gst_buffer_unref (sub);
73 /* create a subbuffer of size 0 */
74 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 1, 0);
75 fail_if (sub == NULL, "copy_region of buffer returned NULL");
76 fail_unless (gst_buffer_map (sub, &sinfo, GST_MAP_READ));
77 fail_unless (sinfo.size == 0, "subbuffer has wrong size");
78 fail_unless (memcmp (info.data + 1, sinfo.data, 0) == 0,
79 "subbuffer contains the wrong data");
80 ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
81 gst_buffer_unmap (sub, &sinfo);
82 gst_buffer_unref (sub);
84 /* test if metadata is coppied, not a complete buffer copy so only the
85 * timestamp and offset fields are copied. */
86 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 1);
87 fail_if (sub == NULL, "copy_region of buffer returned NULL");
88 fail_unless (gst_buffer_get_size (sub) == 1, "subbuffer has wrong size");
89 fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
90 "subbuffer has wrong timestamp");
91 fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
92 fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
93 fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
94 "subbuffer has wrong offset end");
95 gst_buffer_unref (sub);
97 /* test if metadata is coppied, a complete buffer is copied so all the timing
98 * fields should be copied. */
99 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 4);
100 fail_if (sub == NULL, "copy_region of buffer returned NULL");
101 fail_unless (gst_buffer_get_size (sub) == 4, "subbuffer has wrong size");
102 fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
103 "subbuffer has wrong timestamp");
104 fail_unless (GST_BUFFER_DURATION (sub) == 2, "subbuffer has wrong duration");
105 fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
106 fail_unless (GST_BUFFER_OFFSET_END (sub) == 4,
107 "subbuffer has wrong offset end");
110 gst_buffer_unref (sub);
112 gst_buffer_unmap (buffer, &info);
113 gst_buffer_unref (buffer);
118 GST_START_TEST (test_span)
120 GstBuffer *buffer, *sub1, *sub2, *span;
123 buffer = gst_buffer_new_and_alloc (4);
125 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_WRITE));
126 memcpy (info.data, "data", 4);
127 gst_buffer_unmap (buffer, &info);
129 ASSERT_CRITICAL (gst_buffer_append (NULL, NULL));
130 ASSERT_CRITICAL (gst_buffer_append (buffer, NULL));
131 ASSERT_CRITICAL (gst_buffer_append (NULL, buffer));
133 sub1 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 2);
134 fail_if (sub1 == NULL, "copy_region of buffer returned NULL");
136 sub2 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 2, 2);
137 fail_if (sub2 == NULL, "copy_region of buffer returned NULL");
139 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
140 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
141 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
143 /* span will create a new subbuffer from the parent */
144 gst_buffer_ref (sub1);
145 gst_buffer_ref (sub2);
146 span = gst_buffer_append (sub1, sub2);
147 fail_unless (gst_buffer_map (span, &info, GST_MAP_READ));
148 fail_unless (info.size == 4, "spanned buffer is wrong size");
149 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
150 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
151 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
152 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
153 fail_unless (memcmp (info.data, "data", 4) == 0,
154 "spanned buffer contains the wrong data");
155 gst_buffer_unmap (span, &info);
156 gst_buffer_unref (span);
157 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
159 /* span from non-contiguous buffers will create new buffers */
160 gst_buffer_ref (sub1);
161 gst_buffer_ref (sub2);
162 span = gst_buffer_append (sub2, sub1);
163 fail_unless (gst_buffer_map (span, &info, GST_MAP_READ));
164 fail_unless (info.size == 4, "spanned buffer is wrong size");
165 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
166 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
167 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
168 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
169 fail_unless (memcmp (info.data, "tada", 4) == 0,
170 "spanned buffer contains the wrong data");
171 gst_buffer_unmap (span, &info);
172 gst_buffer_unref (span);
173 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
176 gst_buffer_unref (sub1);
177 gst_buffer_unref (sub2);
178 gst_buffer_unref (buffer);
184 static const char ro_memory[] = "abcdefghijklmnopqrstuvwxyz";
187 create_read_only_buffer (void)
191 buf = gst_buffer_new ();
193 /* assign some read-only data to the new buffer */
194 gst_buffer_insert_memory (buf, -1,
195 gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY,
196 (gpointer) ro_memory, sizeof (ro_memory),
197 0, sizeof (ro_memory), NULL, NULL));
202 GST_START_TEST (test_make_writable)
204 GstBuffer *buf, *buf2;
207 /* create read-only buffer and make it writable */
208 buf = create_read_only_buffer ();
210 fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));
212 gst_buffer_unmap (buf, &info);
213 gst_buffer_unref (buf);
215 /* alloc'ed buffer with refcount 1 should be writable */
216 buf = gst_buffer_new_and_alloc (32);
217 buf2 = gst_buffer_make_writable (buf);
218 fail_unless (buf == buf2,
219 "_make_writable() should have returned same buffer");
220 gst_buffer_unref (buf2);
222 /* alloc'ed buffer with refcount >1 should be copied */
223 buf = gst_buffer_new_and_alloc (32);
224 gst_buffer_ref (buf);
225 buf2 = gst_buffer_make_writable (buf);
226 fail_unless (buf != buf2, "_make_writable() should have returned a copy!");
227 gst_buffer_unref (buf2);
228 gst_buffer_unref (buf);
233 GST_START_TEST (test_subbuffer_make_writable)
235 GstBuffer *buf, *sub_buf;
238 /* create sub-buffer of read-only buffer and make it writable */
239 buf = create_read_only_buffer ();
241 sub_buf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL, 0, 8);
243 fail_unless (gst_buffer_map (sub_buf, &info, GST_MAP_WRITE));
244 fail_if (info.data == NULL);
246 gst_buffer_unmap (sub_buf, &info);
247 gst_buffer_unref (sub_buf);
248 gst_buffer_unref (buf);
253 GST_START_TEST (test_metadata_writable)
255 GstBuffer *buffer, *sub1;
257 buffer = gst_buffer_new_and_alloc (4);
258 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
259 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
261 /* Buffer with refcount 1 should have writable metadata */
262 fail_unless (gst_buffer_is_writable (buffer) == TRUE);
264 /* Check that a buffer with refcount 2 does not have writable metadata */
265 gst_buffer_ref (buffer);
266 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 2);
267 fail_unless (gst_buffer_is_writable (buffer) == FALSE);
269 /* Check that make_metadata_writable produces a new sub-buffer with
270 * writable metadata. */
271 sub1 = gst_buffer_make_writable (buffer);
272 fail_if (sub1 == buffer);
273 fail_unless (gst_buffer_is_writable (sub1) == TRUE);
275 /* Check that make_metadata_writable() maintains the buffer flags */
276 fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DISCONT));
277 fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DELTA_UNIT));
279 /* Unset flags on writable buffer, then make sure they're still
280 * set on the original buffer */
281 GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DISCONT);
282 GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DELTA_UNIT);
283 fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT));
284 fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT));
286 /* Drop the subbuffer and check that the metadata is now writable again */
287 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
288 gst_buffer_unref (sub1);
289 fail_unless (gst_buffer_is_writable (buffer) == TRUE);
291 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
292 gst_buffer_unref (buffer);
297 GST_START_TEST (test_memcmp)
300 char buf[3] = { 0, 0, 0 };
302 buffer = gst_buffer_new_and_alloc (2);
303 gst_buffer_memset (buffer, 0, 0, 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);
310 fail_unless (gst_buffer_memcmp (buffer, 4, buf, 1) != 0);
312 gst_buffer_memset (buffer, 0, 0x20, 2);
313 fail_unless (gst_buffer_memcmp (buffer, 0, buf, 2) != 0);
314 fail_unless (gst_buffer_memcmp (buffer, 0, buf, 1) != 0);
315 fail_unless (gst_buffer_memcmp (buffer, 1, buf, 1) != 0);
316 fail_unless (gst_buffer_memcmp (buffer, 0, buf, 3) != 0);
317 fail_unless (gst_buffer_memcmp (buffer, 2, buf, 1) != 0);
319 gst_buffer_unref (buffer);
324 GST_START_TEST (test_copy)
326 GstBuffer *buffer, *copy;
327 GstMapInfo info, sinfo;
329 buffer = gst_buffer_new_and_alloc (4);
330 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
332 copy = gst_buffer_copy (buffer);
333 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
334 ASSERT_BUFFER_REFCOUNT (copy, "copy", 1);
335 /* buffers are copied and must point to different memory */
336 fail_if (buffer == copy);
338 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
339 fail_unless (gst_buffer_map (copy, &sinfo, GST_MAP_READ));
341 /* NOTE that data is refcounted */
342 fail_unless (info.size == sinfo.size);
343 /* GstBuffer was copied but the underlying GstMemory should be the same */
344 fail_unless (info.data == sinfo.data);
346 gst_buffer_unmap (copy, &sinfo);
347 gst_buffer_unmap (buffer, &info);
349 gst_buffer_unref (copy);
350 gst_buffer_unref (buffer);
352 /* a 0-sized buffer has NULL data as per docs */
353 buffer = gst_buffer_new_and_alloc (0);
354 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
355 fail_unless (info.data == NULL);
356 gst_buffer_unmap (buffer, &info);
358 /* copying a 0-sized buffer should not crash and also set
359 * the data member NULL. */
360 copy = gst_buffer_copy (buffer);
361 fail_unless (gst_buffer_map (copy, &info, GST_MAP_READ));
362 fail_unless (info.data == NULL);
363 gst_buffer_unmap (copy, &info);
365 gst_buffer_unref (copy);
366 gst_buffer_unref (buffer);
368 /* check if copy is an independent copy when written to */
369 buffer = gst_buffer_new_and_alloc (4);
370 gst_buffer_memset (buffer, 0, 0, 4);
371 copy = gst_buffer_copy (buffer);
372 fail_unless (gst_buffer_is_writable (copy));
373 gst_buffer_memset (copy, 0, 0x80, 4);
374 gst_buffer_map (buffer, &info, GST_MAP_READ);
375 fail_if (gst_buffer_memcmp (copy, 0, info.data, info.size) == 0);
376 gst_buffer_unmap (buffer, &info);
378 gst_buffer_unref (copy);
379 gst_buffer_unref (buffer);
381 /* copy should still be independent if copied when mapped */
382 buffer = gst_buffer_new_and_alloc (4);
383 gst_buffer_memset (buffer, 0, 0, 4);
384 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_WRITE));
385 copy = gst_buffer_copy (buffer);
386 fail_unless (gst_buffer_is_writable (copy));
387 gst_buffer_memset (copy, 0, 0x80, 4);
388 gst_buffer_unmap (buffer, &info);
389 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
390 fail_if (gst_buffer_memcmp (copy, 0, info.data, info.size) == 0);
391 gst_buffer_unmap (buffer, &info);
393 gst_buffer_unref (copy);
394 gst_buffer_unref (buffer);
396 /* check if a writable clone of a buffer is independent when written to */
397 buffer = gst_buffer_new_and_alloc (4);
398 gst_buffer_memset (buffer, 0, 0, 4);
399 copy = gst_buffer_ref (buffer);
400 copy = gst_buffer_make_writable (copy);
401 fail_unless (gst_buffer_is_writable (copy));
402 gst_buffer_memset (copy, 0, 0x80, 4);
403 gst_buffer_map (buffer, &info, GST_MAP_READ);
404 fail_if (gst_buffer_memcmp (copy, 0, info.data, info.size) == 0);
405 gst_buffer_unmap (buffer, &info);
407 gst_buffer_unref (copy);
408 gst_buffer_unref (buffer);
413 GST_START_TEST (test_copy_deep)
415 GstBuffer *buffer, *copy;
416 GstMapInfo info, sinfo;
418 buffer = gst_buffer_new_and_alloc (4);
419 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
421 copy = gst_buffer_copy_deep (buffer);
422 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
423 ASSERT_BUFFER_REFCOUNT (copy, "copy", 1);
424 /* buffers are copied and must point to different memory */
425 fail_if (buffer == copy);
427 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
428 fail_unless (gst_buffer_map (copy, &sinfo, GST_MAP_READ));
430 /* NOTE that data is refcounted */
431 fail_unless (info.size == sinfo.size);
432 /* copy_deep() forces new GstMemory to be used */
433 fail_unless (info.data != sinfo.data);
435 gst_buffer_unmap (copy, &sinfo);
436 gst_buffer_unmap (buffer, &info);
438 gst_buffer_unref (copy);
439 gst_buffer_unref (buffer);
444 GST_START_TEST (test_try_new_and_alloc)
449 /* special case: alloc of 0 bytes results in new buffer with NULL data */
450 buf = gst_buffer_new_and_alloc (0);
451 fail_unless (buf != NULL);
452 fail_unless (GST_IS_BUFFER (buf));
453 fail_unless (gst_buffer_map (buf, &info, GST_MAP_READ));
454 fail_unless (info.data == NULL);
455 gst_buffer_unmap (buf, &info);
456 gst_buffer_unref (buf);
458 /* normal alloc should still work */
459 buf = gst_buffer_new_and_alloc (640 * 480 * 4);
460 fail_unless (buf != NULL);
461 fail_unless (GST_IS_BUFFER (buf));
462 fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));
463 fail_unless (info.data != NULL);
464 fail_unless (info.size == (640 * 480 * 4));
465 info.data[640 * 479 * 4 + 479] = 0xff;
466 gst_buffer_unmap (buf, &info);
468 gst_buffer_unref (buf);
471 /* Disabled this part of the test, because it happily succeeds on 64-bit
472 * machines that have enough memory+swap, because the address space is large
473 * enough. There's not really any way to test the failure case except by
474 * allocating chunks of memory until it fails, which would suck. */
476 /* now this better fail (don't run in valgrind, it will abort
477 * or warn when passing silly arguments to malloc) */
478 if (!RUNNING_ON_VALGRIND) {
479 buf = gst_buffer_new_and_alloc ((guint) - 1);
480 fail_unless (buf == NULL);
487 GST_START_TEST (test_size)
491 gsize maxalloc, maxalloc2, maxalloc3, maxalloc4;
492 gsize size, maxsize, offset;
494 /* one memory block */
495 buf = gst_buffer_new_allocate (NULL, 100, NULL);
497 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
498 fail_unless (size == 100);
499 fail_unless (offset == 0);
500 fail_unless (maxalloc >= 100);
502 mem = gst_buffer_get_memory (buf, 0);
503 gst_memory_resize (mem, 10, 70);
504 gst_memory_unref (mem);
506 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
507 fail_unless (size == 70);
508 fail_unless (offset == 10);
509 fail_unless (maxsize == maxalloc);
512 mem = gst_allocator_alloc (NULL, 100, NULL);
513 size = gst_memory_get_sizes (mem, &offset, &maxalloc2);
514 fail_unless (size == 100);
515 fail_unless (offset == 0);
516 fail_unless (maxalloc2 >= 100);
518 gst_memory_resize (mem, 20, 60);
519 size = gst_memory_get_sizes (mem, &offset, &maxsize);
520 fail_unless (size == 60);
521 fail_unless (offset == 20);
522 fail_unless (maxsize == maxalloc2);
525 gst_buffer_insert_memory (buf, -1, mem);
527 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
528 fail_unless (size == 130);
529 fail_unless (offset == 10);
530 /* the maxsize is the size of the first buffer plus the remaining size in the
532 fail_unless (maxalloc == 80 + (maxalloc2 - 20));
534 /* appending an empty block */
535 mem = gst_allocator_alloc (NULL, 100, NULL);
536 size = gst_memory_get_sizes (mem, &offset, &maxalloc3);
537 gst_memory_resize (mem, 0, 0);
538 gst_buffer_insert_memory (buf, -1, mem);
540 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
541 fail_unless (size == 130);
542 fail_unless (offset == 10);
543 /* the maxsize is the size of the first buffer plus the remaining size in the
544 * second buffer and the last empty buffer*/
545 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3);
547 /* prepending an empty block */
548 mem = gst_allocator_alloc (NULL, 100, NULL);
549 size = gst_memory_get_sizes (mem, &offset, &maxalloc4);
550 gst_memory_resize (mem, 0, 0);
551 gst_buffer_insert_memory (buf, 0, mem);
553 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
554 fail_unless (size == 130);
555 /* empty buffer maxsize can be used as offset */
556 fail_unless (offset == 10 + maxalloc4);
557 /* the maxsize is the size of the first buffer plus the remaining size in the
558 * second buffer and the last empty buffer*/
559 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3 + maxalloc4);
561 gst_buffer_unref (buf);
566 GST_START_TEST (test_resize)
570 gsize size, maxsize, offset;
572 /* one memory block */
573 buf = gst_buffer_new_allocate (NULL, 100, NULL);
575 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
576 fail_unless (size == 100);
577 fail_unless (offset == 0);
578 fail_unless (maxalloc >= 100);
580 ASSERT_CRITICAL (gst_buffer_resize (buf, 200, 50));
581 ASSERT_CRITICAL (gst_buffer_resize (buf, 0, 150));
582 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc));
583 ASSERT_CRITICAL (gst_buffer_resize (buf, maxalloc, 1));
585 /* this does nothing */
586 gst_buffer_resize (buf, 0, 100);
588 /* nothing should have changed */
589 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
590 fail_unless (size == 100);
591 fail_unless (offset == 0);
592 fail_unless (maxsize == maxalloc);
594 gst_buffer_resize (buf, 0, 50);
595 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
596 fail_unless (size == 50);
597 fail_unless (offset == 0);
598 fail_unless (maxsize == maxalloc);
600 gst_buffer_resize (buf, 0, 100);
601 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
602 fail_unless (size == 100);
603 fail_unless (offset == 0);
604 fail_unless (maxsize == maxalloc);
606 gst_buffer_resize (buf, 1, 99);
607 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
608 fail_unless (size == 99);
609 fail_unless (offset == 1);
610 fail_unless (maxsize == maxalloc);
612 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc - 1));
614 gst_buffer_resize (buf, 0, 99);
615 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
616 fail_unless (size == 99);
617 fail_unless (offset == 1);
618 fail_unless (maxsize == maxalloc);
620 gst_buffer_resize (buf, -1, 100);
621 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
622 fail_unless (size == 100);
623 fail_unless (offset == 0);
624 fail_unless (maxsize == maxalloc);
626 ASSERT_CRITICAL (gst_buffer_resize (buf, -1, 100));
628 gst_buffer_resize (buf, 50, 40);
629 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
630 fail_unless (size == 40);
631 fail_unless (offset == 50);
632 fail_unless (maxsize == maxalloc);
634 gst_buffer_resize (buf, -50, 100);
635 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
636 fail_unless (size == 100);
637 fail_unless (offset == 0);
638 fail_unless (maxsize == maxalloc);
640 gst_buffer_resize (buf, 0, 0);
641 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
642 fail_unless (size == 0);
643 fail_unless (offset == 0);
644 fail_unless (maxsize == maxalloc);
646 gst_buffer_resize (buf, 0, 100);
647 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
648 fail_unless (size == 100);
649 fail_unless (offset == 0);
650 fail_unless (maxsize == maxalloc);
652 gst_buffer_resize (buf, 0, 100);
653 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
654 fail_unless (size == 100);
655 fail_unless (offset == 0);
656 fail_unless (maxsize == maxalloc);
658 gst_buffer_unref (buf);
663 GST_START_TEST (test_map)
666 GstMapInfo map, map2;
670 buf = gst_buffer_new ();
671 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
672 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
674 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
675 fail_unless (size == 100);
676 fail_unless (offset == 0);
677 fail_unless (maxalloc >= 100);
678 fail_unless (gst_buffer_n_memory (buf) == 2);
681 gst_buffer_ref (buf);
682 /* map should merge */
683 gst_buffer_map (buf, &map, GST_MAP_READ);
684 /* merged memory is not stored */
685 fail_unless (gst_buffer_n_memory (buf) == 2);
686 gst_buffer_unmap (buf, &map);
688 fail_unless (gst_buffer_n_memory (buf) == 2);
690 /* can't map write on readonly buffer */
691 ASSERT_CRITICAL (gst_buffer_map (buf, &map, GST_MAP_WRITE));
692 /* make writable again */
693 gst_buffer_unref (buf);
695 /* should merge and store */
696 gst_buffer_map (buf, &map, GST_MAP_READ);
697 fail_unless (gst_buffer_n_memory (buf) == 1);
698 gst_buffer_unmap (buf, &map);
700 gst_buffer_map (buf, &map, GST_MAP_WRITE);
701 gst_buffer_unmap (buf, &map);
703 /* mapping same kind should be ok using same memory */
704 gst_buffer_map (buf, &map, GST_MAP_WRITE);
705 fail_unless (gst_buffer_map (buf, &map2, GST_MAP_WRITE));
706 fail_unless (map.memory == map2.memory);
707 gst_buffer_unmap (buf, &map2);
708 gst_buffer_unmap (buf, &map);
710 /* ... but different kind should give temporary memory */
711 gst_buffer_map (buf, &map, GST_MAP_WRITE);
712 fail_unless (gst_buffer_map (buf, &map2, GST_MAP_READ));
713 fail_if (map.memory == map2.memory);
714 gst_buffer_unmap (buf, &map2);
715 gst_buffer_unmap (buf, &map);
717 gst_buffer_unref (buf);
722 GST_START_TEST (test_map_range)
729 buf = gst_buffer_new ();
730 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
731 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
732 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
734 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
735 fail_unless (size == 150);
736 fail_unless (offset == 0);
737 fail_unless (maxalloc >= 150);
738 fail_unless (gst_buffer_n_memory (buf) == 3);
740 gst_buffer_ref (buf);
741 /* map should merge */
742 gst_buffer_map_range (buf, 1, 2, &map, GST_MAP_READ);
743 /* merged memory is not stored */
744 fail_unless (gst_buffer_n_memory (buf) == 3);
745 fail_unless (map.size == 100);
746 gst_buffer_unmap (buf, &map);
748 fail_unless (gst_buffer_n_memory (buf) == 3);
750 gst_buffer_unref (buf);
752 /* map should merge */
753 gst_buffer_map_range (buf, 1, 2, &map, GST_MAP_READ);
754 /* merged memory is stored */
755 fail_unless (gst_buffer_n_memory (buf) == 2);
756 fail_unless (map.size == 100);
757 gst_buffer_unmap (buf, &map);
759 fail_unless (gst_buffer_n_memory (buf) == 2);
761 /* should merge and store */
762 gst_buffer_map (buf, &map, GST_MAP_READ);
763 fail_unless (gst_buffer_n_memory (buf) == 1);
764 gst_buffer_unmap (buf, &map);
766 gst_buffer_unref (buf);
771 GST_START_TEST (test_find)
778 buf = gst_buffer_new ();
779 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
780 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 10, NULL));
781 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 15, NULL));
782 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
784 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
785 fail_unless (size == 25);
786 fail_unless (offset >= 0);
787 fail_unless (maxalloc >= 25);
788 fail_unless (gst_buffer_n_memory (buf) == 4);
790 fail_unless (gst_buffer_find_memory (buf, 0, 5, &idx, &length, &offset));
791 fail_unless (idx == 1);
792 fail_unless (length == 1);
793 fail_unless (offset == 0);
795 fail_unless (gst_buffer_find_memory (buf, 0, 10, &idx, &length, &offset));
796 fail_unless (idx == 1);
797 fail_unless (length == 1);
798 fail_unless (offset == 0);
800 fail_unless (gst_buffer_find_memory (buf, 5, 4, &idx, &length, &offset));
801 fail_unless (idx == 1);
802 fail_unless (length == 1);
803 fail_unless (offset == 5);
805 fail_unless (gst_buffer_find_memory (buf, 5, 5, &idx, &length, &offset));
806 fail_unless (idx == 1);
807 fail_unless (length == 1);
808 fail_unless (offset == 5);
810 fail_unless (gst_buffer_find_memory (buf, 5, 6, &idx, &length, &offset));
811 fail_unless (idx == 1);
812 fail_unless (length == 2);
813 fail_unless (offset == 5);
815 fail_unless (gst_buffer_find_memory (buf, 10, 6, &idx, &length, &offset));
816 fail_unless (idx == 2);
817 fail_unless (length == 1);
818 fail_unless (offset == 0);
820 fail_unless (gst_buffer_find_memory (buf, 10, 15, &idx, &length, &offset));
821 fail_unless (idx == 2);
822 fail_unless (length == 1);
823 fail_unless (offset == 0);
825 fail_unless (gst_buffer_find_memory (buf, 11, 14, &idx, &length, &offset));
826 fail_unless (idx == 2);
827 fail_unless (length == 1);
828 fail_unless (offset == 1);
830 fail_unless (gst_buffer_find_memory (buf, 0, 25, &idx, &length, &offset));
831 fail_unless (idx == 1);
832 fail_unless (length == 2);
833 fail_unless (offset == 0);
835 fail_unless (gst_buffer_find_memory (buf, 24, 0, &idx, &length, &offset));
836 fail_unless (idx == 2);
837 fail_unless (length == 1);
838 fail_unless (offset == 14);
840 fail_if (gst_buffer_find_memory (buf, 11, 15, &idx, &length, &offset));
841 fail_if (gst_buffer_find_memory (buf, 0, 26, &idx, &length, &offset));
842 fail_if (gst_buffer_find_memory (buf, 25, 0, &idx, &length, &offset));
844 fail_unless (gst_buffer_find_memory (buf, 1, -1, &idx, &length, &offset));
845 fail_unless (idx == 1);
846 fail_unless (length == 3);
847 fail_unless (offset == 1);
849 gst_buffer_unref (buf);
854 GST_START_TEST (test_fill)
857 guint8 data[1024], data2[25];
860 buf = gst_buffer_new ();
861 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
862 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 10, NULL));
863 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 15, NULL));
864 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
866 for (i = 0; i < G_N_ELEMENTS (data); ++i)
869 /* a NULL src pointer should be ok if the src length is 0 bytes */
870 fail_unless_equals_int (gst_buffer_fill (buf, 0, NULL, 0), 0);
871 fail_unless_equals_int (gst_buffer_fill (buf, 20, NULL, 0), 0);
872 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 0), 0);
874 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 1), 1);
875 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 11), 11);
876 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 15), 15);
877 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 25), 25);
878 fail_unless_equals_int (gst_buffer_fill (buf, 0, data, 26), 25);
879 fail_unless_equals_int (gst_buffer_fill (buf, 1, data, 26), 24);
880 fail_unless_equals_int (gst_buffer_fill (buf, 10, data, 100), 15);
881 fail_unless_equals_int (gst_buffer_fill (buf, 11, data, 100), 14);
882 fail_unless_equals_int (gst_buffer_fill (buf, 25, data, 100), 0);
884 fail_unless_equals_int (gst_buffer_fill (buf, 0, data + 10, 25), 25);
885 fail_unless_equals_int (gst_buffer_extract (buf, 0, data2, 25), 25);
886 fail_unless (memcmp (data2, data + 10, 25) == 0);
888 gst_buffer_unref (buf);
893 GST_START_TEST (test_parent_buffer_meta)
895 GstBuffer *buf, *parent;
896 GstParentBufferMeta *meta;
898 buf = gst_buffer_new ();
899 parent = gst_buffer_new ();
901 gst_buffer_add_parent_buffer_meta (buf, parent);
902 meta = gst_buffer_get_parent_buffer_meta (buf);
904 fail_unless (parent == meta->buffer);
906 gst_buffer_unref (buf);
907 gst_buffer_unref (parent);
914 gst_buffer_suite (void)
916 Suite *s = suite_create ("GstBuffer");
917 TCase *tc_chain = tcase_create ("general");
919 suite_add_tcase (s, tc_chain);
920 tcase_add_test (tc_chain, test_subbuffer);
921 tcase_add_test (tc_chain, test_subbuffer_make_writable);
922 tcase_add_test (tc_chain, test_make_writable);
923 tcase_add_test (tc_chain, test_span);
924 tcase_add_test (tc_chain, test_metadata_writable);
925 tcase_add_test (tc_chain, test_memcmp);
926 tcase_add_test (tc_chain, test_copy);
927 tcase_add_test (tc_chain, test_copy_deep);
928 tcase_add_test (tc_chain, test_try_new_and_alloc);
929 tcase_add_test (tc_chain, test_size);
930 tcase_add_test (tc_chain, test_resize);
931 tcase_add_test (tc_chain, test_map);
932 tcase_add_test (tc_chain, test_map_range);
933 tcase_add_test (tc_chain, test_find);
934 tcase_add_test (tc_chain, test_fill);
935 tcase_add_test (tc_chain, test_parent_buffer_meta);
940 GST_CHECK_MAIN (gst_buffer);