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_copy)
299 GstBuffer *buffer, *copy;
300 GstMapInfo info, sinfo;
302 buffer = gst_buffer_new_and_alloc (4);
303 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
305 copy = gst_buffer_copy (buffer);
306 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
307 ASSERT_BUFFER_REFCOUNT (copy, "copy", 1);
308 /* buffers are copied and must point to different memory */
309 fail_if (buffer == copy);
311 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
312 fail_unless (gst_buffer_map (copy, &sinfo, GST_MAP_READ));
314 /* NOTE that data is refcounted */
315 fail_unless (info.size == sinfo.size);
317 gst_buffer_unmap (copy, &sinfo);
318 gst_buffer_unmap (buffer, &info);
320 gst_buffer_unref (copy);
321 gst_buffer_unref (buffer);
323 /* a 0-sized buffer has NULL data as per docs */
324 buffer = gst_buffer_new_and_alloc (0);
325 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
326 fail_unless (info.data == NULL);
327 gst_buffer_unmap (buffer, &info);
329 /* copying a 0-sized buffer should not crash and also set
330 * the data member NULL. */
331 copy = gst_buffer_copy (buffer);
332 fail_unless (gst_buffer_map (copy, &info, GST_MAP_READ));
333 fail_unless (info.data == NULL);
334 gst_buffer_unmap (copy, &info);
336 gst_buffer_unref (copy);
337 gst_buffer_unref (buffer);
339 /* check if copy is an independent copy when written to */
340 buffer = gst_buffer_new_and_alloc (4);
341 gst_buffer_memset (buffer, 0, 0, 4);
342 copy = gst_buffer_copy (buffer);
343 fail_unless (gst_buffer_is_writable (copy));
344 gst_buffer_memset (copy, 0, 0x80, 4);
345 gst_buffer_map (buffer, &info, GST_MAP_READ);
346 fail_if (gst_buffer_memcmp (copy, 0, info.data, info.size) == 0);
347 gst_buffer_unmap (buffer, &info);
349 gst_buffer_unref (copy);
350 gst_buffer_unref (buffer);
352 /* copy should still be independent if copied when mapped */
353 buffer = gst_buffer_new_and_alloc (4);
354 gst_buffer_memset (buffer, 0, 0, 4);
355 gst_buffer_map (buffer, &info, GST_MAP_WRITE);
356 copy = gst_buffer_copy (buffer);
357 fail_unless (gst_buffer_is_writable (copy));
358 gst_buffer_memset (copy, 0, 0x80, 4);
359 gst_buffer_unmap (buffer, &info);
360 gst_buffer_map (buffer, &info, GST_MAP_READ);
361 fail_if (gst_buffer_memcmp (copy, 0, info.data, info.size) == 0);
362 gst_buffer_unmap (buffer, &info);
364 gst_buffer_unref (copy);
365 gst_buffer_unref (buffer);
367 /* check if a writable clone of a buffer is independent when written to */
368 buffer = gst_buffer_new_and_alloc (4);
369 gst_buffer_memset (buffer, 0, 0, 4);
370 copy = gst_buffer_ref (buffer);
371 copy = gst_buffer_make_writable (copy);
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);
384 GST_START_TEST (test_try_new_and_alloc)
389 /* special case: alloc of 0 bytes results in new buffer with NULL data */
390 buf = gst_buffer_new_and_alloc (0);
391 fail_unless (buf != NULL);
392 fail_unless (GST_IS_BUFFER (buf));
393 fail_unless (gst_buffer_map (buf, &info, GST_MAP_READ));
394 fail_unless (info.data == NULL);
395 gst_buffer_unmap (buf, &info);
396 gst_buffer_unref (buf);
398 /* normal alloc should still work */
399 buf = gst_buffer_new_and_alloc (640 * 480 * 4);
400 fail_unless (buf != NULL);
401 fail_unless (GST_IS_BUFFER (buf));
402 fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));
403 fail_unless (info.data != NULL);
404 fail_unless (info.size == (640 * 480 * 4));
405 info.data[640 * 479 * 4 + 479] = 0xff;
406 gst_buffer_unmap (buf, &info);
408 gst_buffer_unref (buf);
411 /* Disabled this part of the test, because it happily succeeds on 64-bit
412 * machines that have enough memory+swap, because the address space is large
413 * enough. There's not really any way to test the failure case except by
414 * allocating chunks of memory until it fails, which would suck. */
416 /* now this better fail (don't run in valgrind, it will abort
417 * or warn when passing silly arguments to malloc) */
418 if (!RUNNING_ON_VALGRIND) {
419 buf = gst_buffer_new_and_alloc ((guint) - 1);
420 fail_unless (buf == NULL);
427 GST_START_TEST (test_size)
431 gsize maxalloc, maxalloc2, maxalloc3, maxalloc4;
432 gsize size, maxsize, offset;
434 /* one memory block */
435 buf = gst_buffer_new_allocate (NULL, 100, NULL);
437 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
438 fail_unless (size == 100);
439 fail_unless (offset == 0);
440 fail_unless (maxalloc >= 100);
442 mem = gst_buffer_get_memory (buf, 0);
443 gst_memory_resize (mem, 10, 70);
444 gst_memory_unref (mem);
446 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
447 fail_unless (size == 70);
448 fail_unless (offset == 10);
449 fail_unless (maxsize == maxalloc);
452 mem = gst_allocator_alloc (NULL, 100, NULL);
453 size = gst_memory_get_sizes (mem, &offset, &maxalloc2);
454 fail_unless (size == 100);
455 fail_unless (offset == 0);
456 fail_unless (maxalloc2 >= 100);
458 gst_memory_resize (mem, 20, 60);
459 size = gst_memory_get_sizes (mem, &offset, &maxsize);
460 fail_unless (size == 60);
461 fail_unless (offset == 20);
462 fail_unless (maxsize == maxalloc2);
465 gst_buffer_insert_memory (buf, -1, mem);
467 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
468 fail_unless (size == 130);
469 fail_unless (offset == 10);
470 /* the maxsize is the size of the first buffer plus the remaining size in the
472 fail_unless (maxalloc == 80 + (maxalloc2 - 20));
474 /* appending an empty block */
475 mem = gst_allocator_alloc (NULL, 100, NULL);
476 size = gst_memory_get_sizes (mem, &offset, &maxalloc3);
477 gst_memory_resize (mem, 0, 0);
478 gst_buffer_insert_memory (buf, -1, mem);
480 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
481 fail_unless (size == 130);
482 fail_unless (offset == 10);
483 /* the maxsize is the size of the first buffer plus the remaining size in the
484 * second buffer and the last empty buffer*/
485 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3);
487 /* prepending an empty block */
488 mem = gst_allocator_alloc (NULL, 100, NULL);
489 size = gst_memory_get_sizes (mem, &offset, &maxalloc4);
490 gst_memory_resize (mem, 0, 0);
491 gst_buffer_insert_memory (buf, 0, mem);
493 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
494 fail_unless (size == 130);
495 /* empty buffer maxsize can be used as offset */
496 fail_unless (offset == 10 + maxalloc4);
497 /* the maxsize is the size of the first buffer plus the remaining size in the
498 * second buffer and the last empty buffer*/
499 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3 + maxalloc4);
501 gst_buffer_unref (buf);
506 GST_START_TEST (test_resize)
510 gsize size, maxsize, offset;
512 /* one memory block */
513 buf = gst_buffer_new_allocate (NULL, 100, NULL);
515 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
516 fail_unless (size == 100);
517 fail_unless (offset == 0);
518 fail_unless (maxalloc >= 100);
520 ASSERT_CRITICAL (gst_buffer_resize (buf, 200, 50));
521 ASSERT_CRITICAL (gst_buffer_resize (buf, 0, 150));
522 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc));
523 ASSERT_CRITICAL (gst_buffer_resize (buf, maxalloc, 1));
525 /* this does nothing */
526 gst_buffer_resize (buf, 0, 100);
528 /* nothing should have changed */
529 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
530 fail_unless (size == 100);
531 fail_unless (offset == 0);
532 fail_unless (maxsize == maxalloc);
534 gst_buffer_resize (buf, 0, 50);
535 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
536 fail_unless (size == 50);
537 fail_unless (offset == 0);
538 fail_unless (maxsize == maxalloc);
540 gst_buffer_resize (buf, 0, 100);
541 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
542 fail_unless (size == 100);
543 fail_unless (offset == 0);
544 fail_unless (maxsize == maxalloc);
546 gst_buffer_resize (buf, 1, 99);
547 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
548 fail_unless (size == 99);
549 fail_unless (offset == 1);
550 fail_unless (maxsize == maxalloc);
552 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc - 1));
554 gst_buffer_resize (buf, 0, 99);
555 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
556 fail_unless (size == 99);
557 fail_unless (offset == 1);
558 fail_unless (maxsize == maxalloc);
560 gst_buffer_resize (buf, -1, 100);
561 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
562 fail_unless (size == 100);
563 fail_unless (offset == 0);
564 fail_unless (maxsize == maxalloc);
566 ASSERT_CRITICAL (gst_buffer_resize (buf, -1, 100));
568 gst_buffer_resize (buf, 50, 40);
569 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
570 fail_unless (size == 40);
571 fail_unless (offset == 50);
572 fail_unless (maxsize == maxalloc);
574 gst_buffer_resize (buf, -50, 100);
575 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
576 fail_unless (size == 100);
577 fail_unless (offset == 0);
578 fail_unless (maxsize == maxalloc);
580 gst_buffer_resize (buf, 0, 0);
581 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
582 fail_unless (size == 0);
583 fail_unless (offset == 0);
584 fail_unless (maxsize == maxalloc);
586 gst_buffer_resize (buf, 0, 100);
587 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
588 fail_unless (size == 100);
589 fail_unless (offset == 0);
590 fail_unless (maxsize == maxalloc);
592 gst_buffer_resize (buf, 0, 100);
593 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
594 fail_unless (size == 100);
595 fail_unless (offset == 0);
596 fail_unless (maxsize == maxalloc);
598 gst_buffer_unref (buf);
603 GST_START_TEST (test_map)
606 GstMapInfo map, map2;
610 buf = gst_buffer_new ();
611 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
612 gst_buffer_insert_memory (buf, -1, gst_allocator_alloc (NULL, 50, NULL));
614 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
615 fail_unless (size == 100);
616 fail_unless (offset == 0);
617 fail_unless (maxalloc >= 100);
618 fail_unless (gst_buffer_n_memory (buf) == 2);
621 gst_buffer_ref (buf);
622 /* map should merge */
623 gst_buffer_map (buf, &map, GST_MAP_READ);
624 /* merged memory is not stored */
625 fail_unless (gst_buffer_n_memory (buf) == 2);
626 gst_buffer_unmap (buf, &map);
628 fail_unless (gst_buffer_n_memory (buf) == 2);
630 /* can't map write on readonly buffer */
631 ASSERT_CRITICAL (gst_buffer_map (buf, &map, GST_MAP_WRITE));
632 /* make writable again */
633 gst_buffer_unref (buf);
635 /* should merge and store */
636 gst_buffer_map (buf, &map, GST_MAP_READ);
637 fail_unless (gst_buffer_n_memory (buf) == 1);
638 gst_buffer_unmap (buf, &map);
640 gst_buffer_map (buf, &map, GST_MAP_WRITE);
641 gst_buffer_unmap (buf, &map);
643 /* mapping same kind should be ok using same memory */
644 gst_buffer_map (buf, &map, GST_MAP_WRITE);
645 fail_unless (gst_buffer_map (buf, &map2, GST_MAP_WRITE));
646 fail_unless (map.memory == map2.memory);
647 gst_buffer_unmap (buf, &map2);
648 gst_buffer_unmap (buf, &map);
650 /* ... but different kind should give temporary memory */
651 gst_buffer_map (buf, &map, GST_MAP_WRITE);
652 fail_unless (gst_buffer_map (buf, &map2, GST_MAP_READ));
653 fail_if (map.memory == map2.memory);
654 gst_buffer_unmap (buf, &map2);
655 gst_buffer_unmap (buf, &map);
657 gst_buffer_unref (buf);
662 GST_START_TEST (test_find)
669 buf = gst_buffer_new ();
670 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
671 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 10, NULL));
672 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 15, NULL));
673 gst_buffer_append_memory (buf, gst_allocator_alloc (NULL, 0, NULL));
675 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
676 fail_unless (size == 25);
677 fail_unless (offset >= 0);
678 fail_unless (maxalloc >= 25);
679 fail_unless (gst_buffer_n_memory (buf) == 4);
681 fail_unless (gst_buffer_find_memory (buf, 0, 5, &idx, &length, &offset));
682 fail_unless (idx == 1);
683 fail_unless (length == 1);
684 fail_unless (offset == 0);
686 fail_unless (gst_buffer_find_memory (buf, 0, 10, &idx, &length, &offset));
687 fail_unless (idx == 1);
688 fail_unless (length == 1);
689 fail_unless (offset == 0);
691 fail_unless (gst_buffer_find_memory (buf, 5, 4, &idx, &length, &offset));
692 fail_unless (idx == 1);
693 fail_unless (length == 1);
694 fail_unless (offset == 5);
696 fail_unless (gst_buffer_find_memory (buf, 5, 5, &idx, &length, &offset));
697 fail_unless (idx == 1);
698 fail_unless (length == 1);
699 fail_unless (offset == 5);
701 fail_unless (gst_buffer_find_memory (buf, 5, 6, &idx, &length, &offset));
702 fail_unless (idx == 1);
703 fail_unless (length == 2);
704 fail_unless (offset == 5);
706 fail_unless (gst_buffer_find_memory (buf, 10, 6, &idx, &length, &offset));
707 fail_unless (idx == 2);
708 fail_unless (length == 1);
709 fail_unless (offset == 0);
711 fail_unless (gst_buffer_find_memory (buf, 10, 15, &idx, &length, &offset));
712 fail_unless (idx == 2);
713 fail_unless (length == 1);
714 fail_unless (offset == 0);
716 fail_unless (gst_buffer_find_memory (buf, 11, 14, &idx, &length, &offset));
717 fail_unless (idx == 2);
718 fail_unless (length == 1);
719 fail_unless (offset == 1);
721 fail_unless (gst_buffer_find_memory (buf, 0, 25, &idx, &length, &offset));
722 fail_unless (idx == 1);
723 fail_unless (length == 2);
724 fail_unless (offset == 0);
726 fail_unless (gst_buffer_find_memory (buf, 24, 0, &idx, &length, &offset));
727 fail_unless (idx == 2);
728 fail_unless (length == 1);
729 fail_unless (offset == 14);
731 fail_if (gst_buffer_find_memory (buf, 11, 15, &idx, &length, &offset));
732 fail_if (gst_buffer_find_memory (buf, 0, 26, &idx, &length, &offset));
733 fail_if (gst_buffer_find_memory (buf, 25, 0, &idx, &length, &offset));
735 fail_unless (gst_buffer_find_memory (buf, 1, -1, &idx, &length, &offset));
736 fail_unless (idx == 1);
737 fail_unless (length == 3);
738 fail_unless (offset == 1);
740 gst_buffer_unref (buf);
747 gst_buffer_suite (void)
749 Suite *s = suite_create ("GstBuffer");
750 TCase *tc_chain = tcase_create ("general");
752 suite_add_tcase (s, tc_chain);
753 tcase_add_test (tc_chain, test_subbuffer);
754 tcase_add_test (tc_chain, test_subbuffer_make_writable);
755 tcase_add_test (tc_chain, test_make_writable);
756 tcase_add_test (tc_chain, test_span);
757 tcase_add_test (tc_chain, test_metadata_writable);
758 tcase_add_test (tc_chain, test_copy);
759 tcase_add_test (tc_chain, test_try_new_and_alloc);
760 tcase_add_test (tc_chain, test_size);
761 tcase_add_test (tc_chain, test_resize);
762 tcase_add_test (tc_chain, test_map);
763 tcase_add_test (tc_chain, test_find);
768 GST_CHECK_MAIN (gst_buffer);