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., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, 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_is_span_fast)
120 GstBuffer *buffer, *sub1, *sub2;
122 buffer = gst_buffer_new_and_alloc (4);
124 sub1 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 2);
125 fail_if (sub1 == NULL, "copy_region of buffer returned NULL");
127 sub2 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 2, 2);
128 fail_if (sub2 == NULL, "copy_region of buffer returned NULL");
130 fail_if (gst_buffer_is_span_fast (buffer, sub2) == TRUE,
131 "a parent buffer can't be span_fasted");
133 fail_if (gst_buffer_is_span_fast (sub1, buffer) == TRUE,
134 "a parent buffer can't be span_fasted");
136 fail_if (gst_buffer_is_span_fast (sub1, sub2) == FALSE,
137 "two subbuffers next to each other should be span_fast");
140 gst_buffer_unref (sub1);
141 gst_buffer_unref (sub2);
142 gst_buffer_unref (buffer);
147 GST_START_TEST (test_span)
149 GstBuffer *buffer, *sub1, *sub2, *span;
152 buffer = gst_buffer_new_and_alloc (4);
154 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_WRITE));
155 memcpy (info.data, "data", 4);
156 gst_buffer_unmap (buffer, &info);
158 ASSERT_CRITICAL (gst_buffer_span (NULL, 1, NULL, 2));
159 ASSERT_CRITICAL (gst_buffer_span (buffer, 1, NULL, 2));
160 ASSERT_CRITICAL (gst_buffer_span (NULL, 1, buffer, 2));
161 ASSERT_CRITICAL (gst_buffer_span (buffer, 0, buffer, 10));
163 sub1 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 2);
164 fail_if (sub1 == NULL, "copy_region of buffer returned NULL");
166 sub2 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 2, 2);
167 fail_if (sub2 == NULL, "copy_region of buffer returned NULL");
169 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
170 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
171 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
173 /* span will create a new subbuffer from the parent */
174 span = gst_buffer_span (sub1, 0, sub2, 4);
175 fail_unless (gst_buffer_map (span, &info, GST_MAP_READ));
176 fail_unless (info.size == 4, "spanned buffer is wrong size");
177 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
178 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
179 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
180 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
181 fail_unless (memcmp (info.data, "data", 4) == 0,
182 "spanned buffer contains the wrong data");
183 gst_buffer_unmap (span, &info);
184 gst_buffer_unref (span);
185 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
187 /* span from non-contiguous buffers will create new buffers */
188 span = gst_buffer_span (sub2, 0, sub1, 4);
189 fail_unless (gst_buffer_map (span, &info, GST_MAP_READ));
190 fail_unless (info.size == 4, "spanned buffer is wrong size");
191 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
192 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
193 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
194 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
195 fail_unless (memcmp (info.data, "tada", 4) == 0,
196 "spanned buffer contains the wrong data");
197 gst_buffer_unmap (span, &info);
198 gst_buffer_unref (span);
199 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
201 /* span with different sizes */
202 span = gst_buffer_span (sub1, 1, sub2, 3);
203 fail_unless (gst_buffer_map (span, &info, GST_MAP_READ));
204 fail_unless (info.size == 3, "spanned buffer is wrong size");
205 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
206 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
207 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
208 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
209 fail_unless (memcmp (info.data, "ata", 3) == 0,
210 "spanned buffer contains the wrong data");
211 gst_buffer_unmap (span, &info);
212 gst_buffer_unref (span);
213 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
215 span = gst_buffer_span (sub2, 0, sub1, 3);
216 fail_unless (gst_buffer_map (span, &info, GST_MAP_READ));
217 fail_unless (info.size == 3, "spanned buffer is wrong size");
218 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
219 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
220 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
221 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
222 fail_unless (memcmp (info.data, "tad", 3) == 0,
223 "spanned buffer contains the wrong data");
224 gst_buffer_unmap (span, &info);
225 gst_buffer_unref (span);
226 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
229 gst_buffer_unref (sub1);
230 gst_buffer_unref (sub2);
231 gst_buffer_unref (buffer);
237 static const char ro_memory[] = "abcdefghijklmnopqrstuvwxyz";
240 create_read_only_buffer (void)
244 buf = gst_buffer_new ();
246 /* assign some read-only data to the new buffer */
247 gst_buffer_take_memory (buf, -1,
248 gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY,
249 (gpointer) ro_memory, sizeof (ro_memory),
250 0, sizeof (ro_memory), NULL, NULL));
255 GST_START_TEST (test_make_writable)
257 GstBuffer *buf, *buf2;
260 /* create read-only buffer and make it writable */
261 buf = create_read_only_buffer ();
263 fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));
265 gst_buffer_unmap (buf, &info);
266 gst_buffer_unref (buf);
268 /* alloc'ed buffer with refcount 1 should be writable */
269 buf = gst_buffer_new_and_alloc (32);
270 buf2 = gst_buffer_make_writable (buf);
271 fail_unless (buf == buf2,
272 "_make_writable() should have returned same buffer");
273 gst_buffer_unref (buf2);
275 /* alloc'ed buffer with refcount >1 should be copied */
276 buf = gst_buffer_new_and_alloc (32);
277 gst_buffer_ref (buf);
278 buf2 = gst_buffer_make_writable (buf);
279 fail_unless (buf != buf2, "_make_writable() should have returned a copy!");
280 gst_buffer_unref (buf2);
281 gst_buffer_unref (buf);
286 GST_START_TEST (test_subbuffer_make_writable)
288 GstBuffer *buf, *sub_buf;
291 /* create sub-buffer of read-only buffer and make it writable */
292 buf = create_read_only_buffer ();
294 sub_buf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL, 0, 8);
296 fail_unless (gst_buffer_map (sub_buf, &info, GST_MAP_WRITE));
297 fail_if (info.data == NULL);
299 gst_buffer_unmap (sub_buf, &info);
300 gst_buffer_unref (sub_buf);
301 gst_buffer_unref (buf);
306 GST_START_TEST (test_metadata_writable)
308 GstBuffer *buffer, *sub1;
310 buffer = gst_buffer_new_and_alloc (4);
311 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
312 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
314 /* Buffer with refcount 1 should have writable metadata */
315 fail_unless (gst_buffer_is_writable (buffer) == TRUE);
317 /* Check that a buffer with refcount 2 does not have writable metadata */
318 gst_buffer_ref (buffer);
319 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 2);
320 fail_unless (gst_buffer_is_writable (buffer) == FALSE);
322 /* Check that make_metadata_writable produces a new sub-buffer with
323 * writable metadata. */
324 sub1 = gst_buffer_make_writable (buffer);
325 fail_if (sub1 == buffer);
326 fail_unless (gst_buffer_is_writable (sub1) == TRUE);
328 /* Check that make_metadata_writable() maintains the buffer flags */
329 fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DISCONT));
330 fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DELTA_UNIT));
332 /* Unset flags on writable buffer, then make sure they're still
333 * set on the original buffer */
334 GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DISCONT);
335 GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DELTA_UNIT);
336 fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT));
337 fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT));
339 /* Drop the subbuffer and check that the metadata is now writable again */
340 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
341 gst_buffer_unref (sub1);
342 fail_unless (gst_buffer_is_writable (buffer) == TRUE);
344 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
345 gst_buffer_unref (buffer);
350 GST_START_TEST (test_copy)
352 GstBuffer *buffer, *copy;
353 GstMapInfo info, sinfo;
355 buffer = gst_buffer_new_and_alloc (4);
356 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
358 copy = gst_buffer_copy (buffer);
359 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
360 ASSERT_BUFFER_REFCOUNT (copy, "copy", 1);
361 /* buffers are copied and must point to different memory */
362 fail_if (buffer == copy);
364 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
365 fail_unless (gst_buffer_map (copy, &sinfo, GST_MAP_READ));
367 /* NOTE that data is refcounted */
368 fail_unless (info.size == sinfo.size);
370 gst_buffer_unmap (copy, &sinfo);
371 gst_buffer_unmap (buffer, &info);
373 gst_buffer_unref (copy);
374 gst_buffer_unref (buffer);
376 /* a 0-sized buffer has NULL data as per docs */
377 buffer = gst_buffer_new_and_alloc (0);
378 fail_unless (gst_buffer_map (buffer, &info, GST_MAP_READ));
379 fail_unless (info.data == NULL);
380 gst_buffer_unmap (buffer, &info);
382 /* copying a 0-sized buffer should not crash and also set
383 * the data member NULL. */
384 copy = gst_buffer_copy (buffer);
385 fail_unless (gst_buffer_map (copy, &info, GST_MAP_READ));
386 fail_unless (info.data == NULL);
387 gst_buffer_unmap (copy, &info);
389 gst_buffer_unref (copy);
390 gst_buffer_unref (buffer);
395 GST_START_TEST (test_try_new_and_alloc)
400 /* special case: alloc of 0 bytes results in new buffer with NULL data */
401 buf = gst_buffer_new_and_alloc (0);
402 fail_unless (buf != NULL);
403 fail_unless (GST_IS_BUFFER (buf));
404 fail_unless (gst_buffer_map (buf, &info, GST_MAP_READ));
405 fail_unless (info.data == NULL);
406 gst_buffer_unmap (buf, &info);
407 gst_buffer_unref (buf);
409 /* normal alloc should still work */
410 buf = gst_buffer_new_and_alloc (640 * 480 * 4);
411 fail_unless (buf != NULL);
412 fail_unless (GST_IS_BUFFER (buf));
413 fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));
414 fail_unless (info.data != NULL);
415 fail_unless (info.size == (640 * 480 * 4));
416 info.data[640 * 479 * 4 + 479] = 0xff;
417 gst_buffer_unmap (buf, &info);
419 gst_buffer_unref (buf);
422 /* Disabled this part of the test, because it happily succeeds on 64-bit
423 * machines that have enough memory+swap, because the address space is large
424 * enough. There's not really any way to test the failure case except by
425 * allocating chunks of memory until it fails, which would suck. */
427 /* now this better fail (don't run in valgrind, it will abort
428 * or warn when passing silly arguments to malloc) */
429 if (!RUNNING_ON_VALGRIND) {
430 buf = gst_buffer_new_and_alloc ((guint) - 1);
431 fail_unless (buf == NULL);
438 GST_START_TEST (test_size)
442 gsize maxalloc, maxalloc2, maxalloc3, maxalloc4;
443 gsize size, maxsize, offset;
445 /* one memory block */
446 buf = gst_buffer_new_allocate (NULL, 100, 0);
448 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
449 fail_unless (size == 100);
450 fail_unless (offset == 0);
451 fail_unless (maxalloc >= 100);
453 mem = gst_buffer_get_memory (buf, 0);
454 gst_memory_resize (mem, 10, 70);
455 gst_memory_unref (mem);
457 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
458 fail_unless (size == 70);
459 fail_unless (offset == 10);
460 fail_unless (maxsize == maxalloc);
463 mem = gst_allocator_alloc (NULL, 100, 0);
464 size = gst_memory_get_sizes (mem, &offset, &maxalloc2);
465 fail_unless (size == 100);
466 fail_unless (offset == 0);
467 fail_unless (maxalloc2 >= 100);
469 gst_memory_resize (mem, 20, 60);
470 size = gst_memory_get_sizes (mem, &offset, &maxsize);
471 fail_unless (size == 60);
472 fail_unless (offset == 20);
473 fail_unless (maxsize == maxalloc2);
476 gst_buffer_take_memory (buf, -1, mem);
478 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
479 fail_unless (size == 130);
480 fail_unless (offset == 10);
481 /* the maxsize is the size of the first buffer plus the remaining size in the
483 fail_unless (maxalloc == 80 + (maxalloc2 - 20));
485 /* appending an empty block */
486 mem = gst_allocator_alloc (NULL, 100, 0);
487 size = gst_memory_get_sizes (mem, &offset, &maxalloc3);
488 gst_memory_resize (mem, 0, 0);
489 gst_buffer_take_memory (buf, -1, mem);
491 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
492 fail_unless (size == 130);
493 fail_unless (offset == 10);
494 /* the maxsize is the size of the first buffer plus the remaining size in the
495 * second buffer and the last empty buffer*/
496 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3);
498 /* prepending an empty block */
499 mem = gst_allocator_alloc (NULL, 100, 0);
500 size = gst_memory_get_sizes (mem, &offset, &maxalloc4);
501 gst_memory_resize (mem, 0, 0);
502 gst_buffer_take_memory (buf, 0, mem);
504 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
505 fail_unless (size == 130);
506 /* empty buffer maxsize can be used as offset */
507 fail_unless (offset == 10 + maxalloc4);
508 /* the maxsize is the size of the first buffer plus the remaining size in the
509 * second buffer and the last empty buffer*/
510 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3 + maxalloc4);
512 gst_buffer_unref (buf);
517 GST_START_TEST (test_resize)
521 gsize size, maxsize, offset;
523 /* one memory block */
524 buf = gst_buffer_new_allocate (NULL, 100, 0);
526 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
527 fail_unless (size == 100);
528 fail_unless (offset == 0);
529 fail_unless (maxalloc >= 100);
531 ASSERT_CRITICAL (gst_buffer_resize (buf, 200, 50));
532 ASSERT_CRITICAL (gst_buffer_resize (buf, 0, 150));
533 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc));
534 ASSERT_CRITICAL (gst_buffer_resize (buf, maxalloc, 1));
536 /* this does nothing */
537 gst_buffer_resize (buf, 0, 100);
539 /* nothing should have changed */
540 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
541 fail_unless (size == 100);
542 fail_unless (offset == 0);
543 fail_unless (maxsize == maxalloc);
545 gst_buffer_resize (buf, 0, 50);
546 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
547 fail_unless (size == 50);
548 fail_unless (offset == 0);
549 fail_unless (maxsize == maxalloc);
551 gst_buffer_resize (buf, 0, 100);
552 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
553 fail_unless (size == 100);
554 fail_unless (offset == 0);
555 fail_unless (maxsize == maxalloc);
557 gst_buffer_resize (buf, 1, 99);
558 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
559 fail_unless (size == 99);
560 fail_unless (offset == 1);
561 fail_unless (maxsize == maxalloc);
563 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc - 1));
565 gst_buffer_resize (buf, 0, 99);
566 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
567 fail_unless (size == 99);
568 fail_unless (offset == 1);
569 fail_unless (maxsize == maxalloc);
571 gst_buffer_resize (buf, -1, 100);
572 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
573 fail_unless (size == 100);
574 fail_unless (offset == 0);
575 fail_unless (maxsize == maxalloc);
577 ASSERT_CRITICAL (gst_buffer_resize (buf, -1, 100));
579 gst_buffer_resize (buf, 50, 40);
580 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
581 fail_unless (size == 40);
582 fail_unless (offset == 50);
583 fail_unless (maxsize == maxalloc);
585 gst_buffer_resize (buf, -50, 100);
586 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
587 fail_unless (size == 100);
588 fail_unless (offset == 0);
589 fail_unless (maxsize == maxalloc);
591 gst_buffer_resize (buf, 0, 0);
592 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
593 fail_unless (size == 0);
594 fail_unless (offset == 0);
595 fail_unless (maxsize == maxalloc);
597 gst_buffer_resize (buf, 0, 100);
598 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
599 fail_unless (size == 100);
600 fail_unless (offset == 0);
601 fail_unless (maxsize == maxalloc);
603 gst_buffer_resize (buf, 0, 100);
604 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
605 fail_unless (size == 100);
606 fail_unless (offset == 0);
607 fail_unless (maxsize == maxalloc);
609 gst_buffer_unref (buf);
614 GST_START_TEST (test_map)
621 buf = gst_buffer_new ();
622 gst_buffer_take_memory (buf, -1, gst_allocator_alloc (NULL, 50, 0));
623 gst_buffer_take_memory (buf, -1, gst_allocator_alloc (NULL, 50, 0));
625 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
626 fail_unless (size == 100);
627 fail_unless (offset == 0);
628 fail_unless (maxalloc >= 100);
629 fail_unless (gst_buffer_n_memory (buf) == 2);
632 gst_buffer_ref (buf);
633 /* map should merge */
634 gst_buffer_map (buf, &map, GST_MAP_READ);
635 /* merged memory is not stored */
636 fail_unless (gst_buffer_n_memory (buf) == 2);
637 gst_buffer_unmap (buf, &map);
639 fail_unless (gst_buffer_n_memory (buf) == 2);
641 /* can't map write on readonly buffer */
642 ASSERT_CRITICAL (gst_buffer_map (buf, &map, GST_MAP_WRITE));
643 /* make writable again */
644 gst_buffer_unref (buf);
646 /* should merge and store */
647 gst_buffer_map (buf, &map, GST_MAP_READ);
648 fail_unless (gst_buffer_n_memory (buf) == 1);
649 gst_buffer_unmap (buf, &map);
651 gst_buffer_map (buf, &map, GST_MAP_WRITE);
652 gst_buffer_unmap (buf, &map);
654 gst_buffer_unref (buf);
661 gst_buffer_suite (void)
663 Suite *s = suite_create ("GstBuffer");
664 TCase *tc_chain = tcase_create ("general");
666 suite_add_tcase (s, tc_chain);
667 tcase_add_test (tc_chain, test_subbuffer);
668 tcase_add_test (tc_chain, test_subbuffer_make_writable);
669 tcase_add_test (tc_chain, test_make_writable);
670 tcase_add_test (tc_chain, test_is_span_fast);
671 tcase_add_test (tc_chain, test_span);
672 tcase_add_test (tc_chain, test_metadata_writable);
673 tcase_add_test (tc_chain, test_copy);
674 tcase_add_test (tc_chain, test_try_new_and_alloc);
675 tcase_add_test (tc_chain, test_size);
676 tcase_add_test (tc_chain, test_resize);
677 tcase_add_test (tc_chain, test_map);
682 GST_CHECK_MAIN (gst_buffer);