/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- GST_START_TEST
- GST_START_TEST
- GST_START_TEST
- GST_START_TEST
- create_read_only_buffer
- GST_START_TEST
- GST_START_TEST
- GST_START_TEST
- GST_START_TEST
- GST_START_TEST
- gst_buffer_suite
/* GStreamer
*
* unit test for GstBuffer
*
* Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_VALGRIND_H
# include <valgrind/valgrind.h>
#else
# define RUNNING_ON_VALGRIND FALSE
#endif
#include <gst/check/gstcheck.h>
GST_START_TEST (test_caps)
{
GstBuffer *buffer;
GstCaps *caps, *caps2;
buffer = gst_buffer_new_and_alloc (4);
caps = gst_caps_from_string ("audio/x-raw-int");
ASSERT_CAPS_REFCOUNT (caps, "caps", 1);
fail_unless (GST_BUFFER_CAPS (buffer) == NULL);
gst_buffer_set_caps (buffer, caps);
ASSERT_CAPS_REFCOUNT (caps, "caps", 2);
fail_unless (GST_BUFFER_CAPS (buffer) == caps);
ASSERT_CAPS_REFCOUNT (caps, "caps", 2);
fail_unless (gst_buffer_get_caps (buffer) == caps);
gst_caps_unref (caps);
ASSERT_CAPS_REFCOUNT (caps, "caps", 2);
caps2 = gst_caps_from_string ("audio/x-raw-float");
ASSERT_CAPS_REFCOUNT (caps2, "caps2", 1);
gst_buffer_set_caps (buffer, caps2);
ASSERT_CAPS_REFCOUNT (caps, "caps", 1);
ASSERT_CAPS_REFCOUNT (caps2, "caps2", 2);
gst_buffer_set_caps (buffer, NULL);
ASSERT_CAPS_REFCOUNT (caps, "caps", 1);
ASSERT_CAPS_REFCOUNT (caps2, "caps2", 1);
/* clean up, with caps2 still set as caps */
gst_buffer_set_caps (buffer, caps2);
ASSERT_CAPS_REFCOUNT (caps2, "caps2", 2);
gst_buffer_unref (buffer);
ASSERT_CAPS_REFCOUNT (caps2, "caps2", 1);
gst_caps_unref (caps);
gst_caps_unref (caps2);
}
GST_END_TEST;
GST_START_TEST (test_subbuffer)
{
GstBuffer *buffer, *sub;
buffer = gst_buffer_new_and_alloc (4);
memset (GST_BUFFER_DATA (buffer), 0, 4);
/* set some metadata */
GST_BUFFER_TIMESTAMP (buffer) = 1;
GST_BUFFER_DURATION (buffer) = 2;
GST_BUFFER_OFFSET (buffer) = 3;
GST_BUFFER_OFFSET_END (buffer) = 4;
sub = gst_buffer_create_sub (buffer, 1, 2);
fail_if (sub == NULL, "create_sub of buffer returned NULL");
fail_unless (GST_BUFFER_SIZE (sub) == 2, "subbuffer has wrong size");
fail_unless (memcmp (GST_BUFFER_DATA (buffer) + 1, GST_BUFFER_DATA (sub),
2) == 0, "subbuffer contains the wrong data");
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 2);
ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
fail_unless (GST_BUFFER_TIMESTAMP (sub) == -1,
"subbuffer has wrong timestamp");
fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
fail_unless (GST_BUFFER_OFFSET (sub) == -1, "subbuffer has wrong offset");
fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
"subbuffer has wrong offset end");
gst_buffer_unref (sub);
/* create a subbuffer of size 0 */
sub = gst_buffer_create_sub (buffer, 1, 0);
fail_if (sub == NULL, "create_sub of buffer returned NULL");
fail_unless (GST_BUFFER_SIZE (sub) == 0, "subbuffer has wrong size");
fail_unless (memcmp (GST_BUFFER_DATA (buffer) + 1, GST_BUFFER_DATA (sub),
0) == 0, "subbuffer contains the wrong data");
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 2);
ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
gst_buffer_unref (sub);
/* test if metadata is coppied, not a complete buffer copy so only the
* timestamp and offset fields are copied. */
sub = gst_buffer_create_sub (buffer, 0, 1);
fail_if (sub == NULL, "create_sub of buffer returned NULL");
fail_unless (GST_BUFFER_SIZE (sub) == 1, "subbuffer has wrong size");
fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
"subbuffer has wrong timestamp");
fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
"subbuffer has wrong offset end");
gst_buffer_unref (sub);
/* test if metadata is coppied, a complete buffer is copied so all the timing
* fields should be copied. */
sub = gst_buffer_create_sub (buffer, 0, 4);
fail_if (sub == NULL, "create_sub of buffer returned NULL");
fail_unless (GST_BUFFER_SIZE (sub) == 4, "subbuffer has wrong size");
fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
"subbuffer has wrong timestamp");
fail_unless (GST_BUFFER_DURATION (sub) == 2, "subbuffer has wrong duration");
fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
fail_unless (GST_BUFFER_OFFSET_END (sub) == 4,
"subbuffer has wrong offset end");
/* clean up */
gst_buffer_unref (sub);
gst_buffer_unref (buffer);
}
GST_END_TEST;
GST_START_TEST (test_is_span_fast)
{
GstBuffer *buffer, *sub1, *sub2;
buffer = gst_buffer_new_and_alloc (4);
sub1 = gst_buffer_create_sub (buffer, 0, 2);
fail_if (sub1 == NULL, "create_sub of buffer returned NULL");
sub2 = gst_buffer_create_sub (buffer, 2, 2);
fail_if (sub2 == NULL, "create_sub of buffer returned NULL");
fail_if (gst_buffer_is_span_fast (buffer, sub2) == TRUE,
"a parent buffer can't be span_fasted");
fail_if (gst_buffer_is_span_fast (sub1, buffer) == TRUE,
"a parent buffer can't be span_fasted");
fail_if (gst_buffer_is_span_fast (sub1, sub2) == FALSE,
"two subbuffers next to each other should be span_fast");
/* clean up */
gst_buffer_unref (sub1);
gst_buffer_unref (sub2);
gst_buffer_unref (buffer);
}
GST_END_TEST;
GST_START_TEST (test_span)
{
GstBuffer *buffer, *sub1, *sub2, *span;
buffer = gst_buffer_new_and_alloc (4);
memcpy (GST_BUFFER_DATA (buffer), "data", 4);
ASSERT_CRITICAL (gst_buffer_span (NULL, 1, NULL, 2));
ASSERT_CRITICAL (gst_buffer_span (buffer, 1, NULL, 2));
ASSERT_CRITICAL (gst_buffer_span (NULL, 1, buffer, 2));
ASSERT_CRITICAL (gst_buffer_span (buffer, 0, buffer, 10));
sub1 = gst_buffer_create_sub (buffer, 0, 2);
fail_if (sub1 == NULL, "create_sub of buffer returned NULL");
sub2 = gst_buffer_create_sub (buffer, 2, 2);
fail_if (sub2 == NULL, "create_sub of buffer returned NULL");
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 3);
ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
/* span will create a new subbuffer from the parent */
span = gst_buffer_span (sub1, 0, sub2, 4);
fail_unless (GST_BUFFER_SIZE (span) == 4, "spanned buffer is wrong size");
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 4);
ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
ASSERT_BUFFER_REFCOUNT (span, "span", 1);
fail_unless (memcmp (GST_BUFFER_DATA (span), "data", 4) == 0,
"spanned buffer contains the wrong data");
gst_buffer_unref (span);
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 3);
/* span from non-contiguous buffers will create new buffers */
span = gst_buffer_span (sub2, 0, sub1, 4);
fail_unless (GST_BUFFER_SIZE (span) == 4, "spanned buffer is wrong size");
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 3);
ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
ASSERT_BUFFER_REFCOUNT (span, "span", 1);
fail_unless (memcmp (GST_BUFFER_DATA (span), "tada", 4) == 0,
"spanned buffer contains the wrong data");
gst_buffer_unref (span);
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 3);
/* span with different sizes */
span = gst_buffer_span (sub1, 1, sub2, 3);
fail_unless (GST_BUFFER_SIZE (span) == 3, "spanned buffer is wrong size");
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 4);
ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
ASSERT_BUFFER_REFCOUNT (span, "span", 1);
fail_unless (memcmp (GST_BUFFER_DATA (span), "ata", 3) == 0,
"spanned buffer contains the wrong data");
gst_buffer_unref (span);
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 3);
span = gst_buffer_span (sub2, 0, sub1, 3);
fail_unless (GST_BUFFER_SIZE (span) == 3, "spanned buffer is wrong size");
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 3);
ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
ASSERT_BUFFER_REFCOUNT (span, "span", 1);
fail_unless (memcmp (GST_BUFFER_DATA (span), "tad", 3) == 0,
"spanned buffer contains the wrong data");
gst_buffer_unref (span);
ASSERT_BUFFER_REFCOUNT (buffer, "parent", 3);
/* clean up */
gst_buffer_unref (sub1);
gst_buffer_unref (sub2);
gst_buffer_unref (buffer);
}
GST_END_TEST;
static const char ro_memory[] = "abcdefghijklmnopqrstuvwxyz";
static GstBuffer *
create_read_only_buffer (void)
{
GstBuffer *buf;
buf = (GstBuffer *) gst_mini_object_new (GST_TYPE_BUFFER);
/* assign some read-only data to the new buffer */
GST_BUFFER_DATA (buf) = (guint8 *) ro_memory;
GST_BUFFER_SIZE (buf) = sizeof (ro_memory);
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_READONLY);
return buf;
}
GST_START_TEST (test_make_writable)
{
GstBuffer *buf, *buf2;
/* create read-only buffer and make it writable */
buf = create_read_only_buffer ();
fail_unless (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY),
"read-only buffer should have read-only flag set");
buf = gst_buffer_make_writable (buf);
fail_unless (!GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY),
"writable buffer must not have read-only flag set");
GST_BUFFER_DATA (buf)[4] = 'a';
gst_buffer_unref (buf);
/* alloc'ed buffer with refcount 1 should be writable */
buf = gst_buffer_new_and_alloc (32);
fail_unless (!GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY),
"_new_and_alloc'ed buffer must not have read-only flag set");
buf2 = gst_buffer_make_writable (buf);
fail_unless (buf == buf2,
"_make_writable() should have returned same buffer");
gst_buffer_unref (buf2);
/* alloc'ed buffer with refcount >1 should be copied */
buf = gst_buffer_new_and_alloc (32);
fail_unless (!GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY),
"_new_and_alloc'ed buffer must not have read-only flag set");
gst_buffer_ref (buf);
buf2 = gst_buffer_make_writable (buf);
fail_unless (buf != buf2, "_make_writable() should have returned a copy!");
gst_buffer_unref (buf2);
gst_buffer_unref (buf);
}
GST_END_TEST;
GST_START_TEST (test_subbuffer_make_writable)
{
GstBuffer *buf, *sub_buf;
/* create sub-buffer of read-only buffer and make it writable */
buf = create_read_only_buffer ();
fail_unless (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY),
"read-only buffer should have read-only flag set");
sub_buf = gst_buffer_create_sub (buf, 0, 8);
fail_unless (GST_BUFFER_FLAG_IS_SET (sub_buf, GST_BUFFER_FLAG_READONLY),
"sub-buffer of read-only buffer should have read-only flag set");
sub_buf = gst_buffer_make_writable (sub_buf);
fail_unless (!GST_BUFFER_FLAG_IS_SET (sub_buf, GST_BUFFER_FLAG_READONLY),
"writable buffer must not have read-only flag set");
GST_BUFFER_DATA (sub_buf)[4] = 'a';
gst_buffer_unref (sub_buf);
gst_buffer_unref (buf);
}
GST_END_TEST;
GST_START_TEST (test_metadata_writable)
{
GstBuffer *buffer, *sub1;
buffer = gst_buffer_new_and_alloc (4);
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
/* Buffer with refcount 1 should have writable metadata */
fail_unless (gst_buffer_is_metadata_writable (buffer) == TRUE);
/* Check that a buffer with refcount 2 does not have writable metadata */
gst_buffer_ref (buffer);
ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 2);
fail_unless (gst_buffer_is_metadata_writable (buffer) == FALSE);
/* Check that make_metadata_writable produces a new sub-buffer with
* writable metadata. */
sub1 = gst_buffer_make_metadata_writable (buffer);
fail_if (sub1 == buffer);
fail_unless (gst_buffer_is_metadata_writable (sub1) == TRUE);
/* Check that the original metadata is still not writable
* (subbuffer should be holding a reference, and so should we) */
ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 2);
fail_unless (gst_buffer_is_metadata_writable (buffer) == FALSE);
/* Check that make_metadata_writable() maintains the buffer flags */
fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DISCONT));
fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DELTA_UNIT));
/* Unset flags on writable buffer, then make sure they're still
* set on the original buffer */
GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DISCONT);
GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DELTA_UNIT);
fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT));
fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT));
/* Drop the subbuffer and check that the metadata is now writable again */
ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
gst_buffer_unref (sub1);
fail_unless (gst_buffer_is_metadata_writable (buffer) == TRUE);
ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
gst_buffer_unref (buffer);
}
GST_END_TEST;
GST_START_TEST (test_copy)
{
GstBuffer *buffer, *copy;
buffer = gst_buffer_new_and_alloc (4);
ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
copy = gst_buffer_copy (buffer);
ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
ASSERT_BUFFER_REFCOUNT (copy, "copy", 1);
/* data must be copied and thus point to different memory */
fail_if (GST_BUFFER_DATA (buffer) == GST_BUFFER_DATA (copy));
gst_buffer_unref (copy);
gst_buffer_unref (buffer);
/* a 0-sized buffer has NULL data as per docs */
buffer = gst_buffer_new_and_alloc (0);
fail_unless (GST_BUFFER_DATA (buffer) == NULL);
fail_unless (GST_BUFFER_SIZE (buffer) == 0);
/* copying a 0-sized buffer should not crash and also set
* the data member NULL. */
copy = gst_buffer_copy (buffer);
fail_unless (GST_BUFFER_DATA (copy) == NULL);
fail_unless (GST_BUFFER_SIZE (copy) == 0);
gst_buffer_unref (copy);
gst_buffer_unref (buffer);
}
GST_END_TEST;
GST_START_TEST (test_try_new_and_alloc)
{
GstBuffer *buf;
/* special case: alloc of 0 bytes results in new buffer with NULL data */
buf = gst_buffer_try_new_and_alloc (0);
fail_unless (buf != NULL);
fail_unless (GST_IS_BUFFER (buf));
fail_unless (GST_BUFFER_SIZE (buf) == 0);
fail_unless (GST_BUFFER_DATA (buf) == NULL);
fail_unless (GST_BUFFER_MALLOCDATA (buf) == NULL);
gst_buffer_unref (buf);
/* normal alloc should still work */
buf = gst_buffer_try_new_and_alloc (640 * 480 * 4);
fail_unless (buf != NULL);
fail_unless (GST_IS_BUFFER (buf));
fail_unless (GST_BUFFER_SIZE (buf) == (640 * 480 * 4));
fail_unless (GST_BUFFER_DATA (buf) != NULL);
fail_unless (GST_BUFFER_MALLOCDATA (buf) != NULL);
GST_BUFFER_DATA (buf)[640 * 479 * 4 + 479] = 0xff;
gst_buffer_unref (buf);
#if 0
/* Disabled this part of the test, because it happily succeeds on 64-bit
* machines that have enough memory+swap, because the address space is large
* enough. There's not really any way to test the failure case except by
* allocating chunks of memory until it fails, which would suck. */
/* now this better fail (don't run in valgrind, it will abort
* or warn when passing silly arguments to malloc) */
if (!RUNNING_ON_VALGRIND) {
buf = gst_buffer_try_new_and_alloc ((guint) - 1);
fail_unless (buf == NULL);
}
#endif
}
GST_END_TEST;
static Suite *
gst_buffer_suite (void)
{
Suite *s = suite_create ("GstBuffer");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_caps);
tcase_add_test (tc_chain, test_subbuffer);
tcase_add_test (tc_chain, test_subbuffer_make_writable);
tcase_add_test (tc_chain, test_make_writable);
tcase_add_test (tc_chain, test_is_span_fast);
tcase_add_test (tc_chain, test_span);
tcase_add_test (tc_chain, test_metadata_writable);
tcase_add_test (tc_chain, test_copy);
tcase_add_test (tc_chain, test_try_new_and_alloc);
return s;
}
GST_CHECK_MAIN (gst_buffer);