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gstreamer/tests/check/gst/gstmeta.c
Tim-Philipp Müller f62ee97592 buffer: store sequence number for metas 
For metas where order might be significant if multiple metas are
attached to the same buffer, so store a sequence number with the
meta when adding it to the buffer. This allows users of the meta
to make sure metas are processed in the right order.

We need a 64-bit integer for the sequence number here in the API,
a 32-bit one might overflow too easily with high packet/buffer
rates. We could do it rtp-seqnum style of course, but that's a
bit of a pain.

We could also make it so that gst_buffer_add_meta() just keeps metas in
order or rely on the order we add the metas in, but that seems too
fragile overall, when buffers (incl. metas) get merged or split.

Also add a compare function for easier sorting.

We store the seqnum in the MetaItem struct here and not in the
GstMeta struct since there's no padding in the GstMeta struct.
We could add a private struct to GstMeta before the start of
GstMeta, but that's what MetaItem effectively is implementation-
wise. We can still change this later if we want, since it's all
private.

Fixes #262
2019-02-12 17:53:08 +00:00

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/* GStreamer
*
* unit test for GstMeta
*
* Copyright (C) <2009> Wim Taymans <wim.taymans@gmail.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gst/check/gstcheck.h>
/* test metadata for PTS/DTS and duration */
typedef struct
{
GstMeta meta;
GstClockTime pts;
GstClockTime dts;
GstClockTime duration;
GstClockTime clock_rate;
} GstMetaTest;
static GType gst_meta_test_api_get_type (void);
#define GST_META_TEST_API_TYPE (gst_meta_test_api_get_type())
static const GstMetaInfo *gst_meta_test_get_info (void);
#define GST_META_TEST_INFO (gst_meta_test_get_info())
#define GST_META_TEST_GET(buf) ((GstMetaTest *)gst_buffer_get_meta(buf,GST_META_TEST_API_TYPE))
#define GST_META_TEST_ADD(buf) ((GstMetaTest *)gst_buffer_add_meta(buf,GST_META_TEST_INFO,NULL))
typedef struct
{
GstMeta meta;
} GstMetaFoo;
static GType gst_meta_foo_api_get_type (void);
#define GST_META_FOO_API_TYPE (gst_meta_foo_api_get_type())
static const GstMetaInfo *gst_meta_foo_get_info (void);
#define GST_META_FOO_INFO (gst_meta_foo_get_info())
#define GST_META_FOO_GET(buf) ((GstMetaFoo *)gst_buffer_get_meta(buf,GST_META_FOO_API_TYPE))
#define GST_META_FOO_ADD(buf) ((GstMetaFoo *)gst_buffer_add_meta(buf,GST_META_FOO_INFO,NULL))
#if 0
/* unused currently. This is a user function to fill the metadata with default
* values. We don't call this from the init function because the user is mostly
* likely going to override the values immediately after */
static void
gst_meta_test_init (GstMetaTest * meta)
{
meta->pts = GST_CLOCK_TIME_NONE;
meta->dts = GST_CLOCK_TIME_NONE;
meta->duration = GST_CLOCK_TIME_NONE;
meta->clock_rate = GST_SECOND;
}
#endif
static gboolean
test_init_func (GstMeta * meta, gpointer params, GstBuffer * buffer)
{
GST_DEBUG ("init called on buffer %p, meta %p", buffer, meta);
/* nothing to init really, the init function is mostly for allocating
* additional memory or doing special setup as part of adding the metadata to
* the buffer*/
return TRUE;
}
static void
test_free_func (GstMeta * meta, GstBuffer * buffer)
{
GST_DEBUG ("free called on buffer %p, meta %p", buffer, meta);
/* nothing to free really */
}
static gboolean
test_transform_func (GstBuffer * transbuf, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstMetaTest *test, *tmeta = (GstMetaTest *) meta;
GST_DEBUG ("transform %s called from buffer %p to %p, meta %p",
g_quark_to_string (type), buffer, transbuf, meta);
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstMetaTransformCopy *copy_data = data;
test = GST_META_TEST_ADD (transbuf);
if (copy_data->offset == 0) {
/* same offset, copy timestamps */
test->pts = tmeta->pts;
test->dts = tmeta->dts;
if (!copy_data->region) {
fail_unless (gst_buffer_get_size (buffer) == copy_data->size);
/* same size, copy duration */
test->duration = tmeta->duration;
} else {
fail_unless (gst_buffer_get_size (buffer) > copy_data->size);
/* else clear */
test->duration = GST_CLOCK_TIME_NONE;
}
} else {
fail_unless (copy_data->region == TRUE);
test->pts = -1;
test->dts = -1;
test->duration = -1;
}
test->clock_rate = tmeta->clock_rate;
} else {
/* return FALSE, if transform type is not supported */
return FALSE;
}
return TRUE;
}
static GType
gst_meta_test_api_get_type (void)
{
static volatile GType type;
static const gchar *tags[] = { "timing", NULL };
if (g_once_init_enter (&type)) {
GType _type = gst_meta_api_type_register ("GstMetaTestAPI", tags);
g_once_init_leave (&type, _type);
}
return type;
}
static gboolean
foo_init_func (GstMeta * meta, gpointer params, GstBuffer * buffer)
{
GST_DEBUG ("init called on buffer %p, foo meta %p", buffer, meta);
return TRUE;
}
static void
foo_free_func (GstMeta * meta, GstBuffer * buffer)
{
GST_DEBUG ("free called on buffer %p, foo meta %p", buffer, meta);
}
static const GstMetaInfo *
gst_meta_test_get_info (void)
{
static const GstMetaInfo *meta_test_info = NULL;
if (g_once_init_enter ((GstMetaInfo **) & meta_test_info)) {
const GstMetaInfo *mi = gst_meta_register (GST_META_TEST_API_TYPE,
"GstMetaTest",
sizeof (GstMetaTest),
test_init_func, test_free_func, test_transform_func);
g_once_init_leave ((GstMetaInfo **) & meta_test_info, (GstMetaInfo *) mi);
}
return meta_test_info;
}
static gboolean
foo_transform_func (GstBuffer * transbuf, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GST_DEBUG ("transform %s called from buffer %p to %p, meta %p",
g_quark_to_string (type), buffer, transbuf, meta);
if (GST_META_TRANSFORM_IS_COPY (type)) {
G_GNUC_UNUSED GstMetaFoo *unused = GST_META_FOO_ADD (transbuf);
} else {
/* return FALSE, if transform type is not supported */
return FALSE;
}
return TRUE;
}
static GType
gst_meta_foo_api_get_type (void)
{
static volatile GType type;
static const gchar *tags[] = { NULL };
if (g_once_init_enter (&type)) {
GType _type = gst_meta_api_type_register ("GstMetaFooAPI", tags);
g_once_init_leave (&type, _type);
}
return type;
}
static const GstMetaInfo *
gst_meta_foo_get_info (void)
{
static const GstMetaInfo *meta_foo_info = NULL;
if (g_once_init_enter ((GstMetaInfo **) & meta_foo_info)) {
const GstMetaInfo *mi = gst_meta_register (GST_META_FOO_API_TYPE,
"GstMetaFoo",
sizeof (GstMetaFoo),
foo_init_func, foo_free_func, foo_transform_func);
g_once_init_leave ((GstMetaInfo **) & meta_foo_info, (GstMetaInfo *) mi);
}
return meta_foo_info;
}
GST_START_TEST (test_meta_test)
{
GstBuffer *buffer, *copy, *subbuf;
GstMetaTest *meta;
GstMapInfo info;
buffer = gst_buffer_new_and_alloc (4);
fail_if (buffer == NULL);
fail_unless (gst_buffer_map (buffer, &info, GST_MAP_WRITE));
fail_if (info.data == NULL);
memset (info.data, 0, 4);
gst_buffer_unmap (buffer, &info);
/* add some metadata */
meta = GST_META_TEST_ADD (buffer);
fail_if (meta == NULL);
/* fill some values */
meta->pts = 1000;
meta->dts = 2000;
meta->duration = 1000;
meta->clock_rate = 1000;
/* copy of the buffer */
copy = gst_buffer_copy (buffer);
/* get metadata of the buffer */
meta = GST_META_TEST_GET (copy);
fail_if (meta == NULL);
fail_if (meta->pts != 1000);
fail_if (meta->dts != 2000);
fail_if (meta->duration != 1000);
fail_if (meta->clock_rate != 1000);
gst_buffer_unref (copy);
/* make subbuffer */
subbuf = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 1);
/* get metadata of the buffer */
meta = GST_META_TEST_GET (subbuf);
fail_if (meta == NULL);
fail_if (meta->pts != 1000);
fail_if (meta->dts != 2000);
fail_if (meta->duration != -1);
fail_if (meta->clock_rate != 1000);
gst_buffer_unref (subbuf);
/* make another subbuffer */
subbuf = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 1, 3);
/* get metadata of the buffer */
meta = GST_META_TEST_GET (subbuf);
fail_if (meta == NULL);
fail_if (meta->pts != -1);
fail_if (meta->dts != -1);
fail_if (meta->duration != -1);
fail_if (meta->clock_rate != 1000);
gst_buffer_unref (subbuf);
/* clean up */
gst_buffer_unref (buffer);
}
GST_END_TEST;
static gboolean
foreach_meta (GstBuffer * buffer, GstMeta ** meta, gpointer user_data)
{
/* try to remove */
*meta = NULL;
return TRUE;
}
GST_START_TEST (test_meta_locked)
{
GstBuffer *buffer;
GstMetaTest *meta;
buffer = gst_buffer_new_and_alloc (4);
fail_if (buffer == NULL);
/* add some metadata */
meta = GST_META_TEST_ADD (buffer);
fail_if (meta == NULL);
GST_META_FLAG_SET (meta, GST_META_FLAG_LOCKED);
ASSERT_CRITICAL (gst_buffer_remove_meta (buffer, (GstMeta *) meta));
ASSERT_CRITICAL (gst_buffer_foreach_meta (buffer, foreach_meta, NULL));
GST_META_FLAG_UNSET (meta, GST_META_FLAG_LOCKED);
gst_buffer_remove_meta (buffer, (GstMeta *) meta);
/* clean up */
gst_buffer_unref (buffer);
}
GST_END_TEST;
static gboolean
foreach_meta_remove_one (GstBuffer * buffer, GstMeta ** meta,
gpointer to_remove)
{
if (*meta == to_remove) {
*meta = NULL;
}
return TRUE;
}
static gint
count_buffer_meta (GstBuffer * buffer)
{
gint ret = 0;
gpointer state = NULL;
while (gst_buffer_iterate_meta (buffer, &state))
ret++;
return ret;
}
GST_START_TEST (test_meta_foreach_remove_one_of_one)
{
GstBuffer *buffer;
GstMetaTest *meta1;
gpointer state = NULL;
buffer = gst_buffer_new_and_alloc (4);
fail_if (buffer == NULL);
/* add some metadata */
meta1 = GST_META_TEST_ADD (buffer);
fail_if (meta1 == NULL);
fail_unless_equals_int (count_buffer_meta (buffer), 1);
gst_buffer_foreach_meta (buffer, foreach_meta_remove_one, meta1);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == NULL);
/* clean up */
gst_buffer_unref (buffer);
}
GST_END_TEST;
GST_START_TEST (test_meta_foreach_remove_head_of_three)
{
GstBuffer *buffer;
GstMetaTest *meta1, *meta2, *meta3;
gpointer state = NULL;
buffer = gst_buffer_new_and_alloc (4);
fail_if (buffer == NULL);
/* add some metadata */
meta1 = GST_META_TEST_ADD (buffer);
fail_if (meta1 == NULL);
meta2 = GST_META_TEST_ADD (buffer);
fail_if (meta2 == NULL);
meta3 = GST_META_TEST_ADD (buffer);
fail_if (meta3 == NULL);
fail_unless_equals_int (count_buffer_meta (buffer), 3);
gst_buffer_foreach_meta (buffer, foreach_meta_remove_one, meta3);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == (GstMeta *) meta2);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == (GstMeta *) meta1);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == NULL);
/* clean up */
gst_buffer_unref (buffer);
}
GST_END_TEST;
GST_START_TEST (test_meta_foreach_remove_middle_of_three)
{
GstBuffer *buffer;
GstMetaTest *meta1, *meta2, *meta3;
gpointer state = NULL;
buffer = gst_buffer_new_and_alloc (4);
fail_if (buffer == NULL);
/* add some metadata */
meta1 = GST_META_TEST_ADD (buffer);
fail_if (meta1 == NULL);
meta2 = GST_META_TEST_ADD (buffer);
fail_if (meta2 == NULL);
meta3 = GST_META_TEST_ADD (buffer);
fail_if (meta3 == NULL);
fail_unless_equals_int (count_buffer_meta (buffer), 3);
gst_buffer_foreach_meta (buffer, foreach_meta_remove_one, meta2);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == (GstMeta *) meta3);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == (GstMeta *) meta1);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == NULL);
/* clean up */
gst_buffer_unref (buffer);
}
GST_END_TEST;
GST_START_TEST (test_meta_foreach_remove_tail_of_three)
{
GstBuffer *buffer;
GstMetaTest *meta1, *meta2, *meta3;
gpointer state = NULL;
buffer = gst_buffer_new_and_alloc (4);
fail_if (buffer == NULL);
/* add some metadata */
meta1 = GST_META_TEST_ADD (buffer);
fail_if (meta1 == NULL);
meta2 = GST_META_TEST_ADD (buffer);
fail_if (meta2 == NULL);
meta3 = GST_META_TEST_ADD (buffer);
fail_if (meta3 == NULL);
fail_unless_equals_int (count_buffer_meta (buffer), 3);
gst_buffer_foreach_meta (buffer, foreach_meta_remove_one, meta1);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == (GstMeta *) meta3);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == (GstMeta *) meta2);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == NULL);
/* clean up */
gst_buffer_unref (buffer);
}
GST_END_TEST;
static gboolean
foreach_meta_remove_unpooled (GstBuffer * buffer, GstMeta ** meta,
gpointer unused)
{
if (!GST_META_FLAG_IS_SET (*meta, GST_META_FLAG_POOLED)) {
*meta = NULL;
}
return TRUE;
}
GST_START_TEST (test_meta_foreach_remove_head_and_tail_of_three)
{
GstBuffer *buffer;
GstMetaTest *meta1, *meta2, *meta3;
gpointer state = NULL;
buffer = gst_buffer_new_and_alloc (4);
fail_if (buffer == NULL);
/* add some metadata */
meta1 = GST_META_TEST_ADD (buffer);
fail_if (meta1 == NULL);
meta2 = GST_META_TEST_ADD (buffer);
fail_if (meta2 == NULL);
GST_META_FLAG_SET (meta2, GST_META_FLAG_POOLED);
meta3 = GST_META_TEST_ADD (buffer);
fail_if (meta3 == NULL);
fail_unless_equals_int (count_buffer_meta (buffer), 3);
gst_buffer_foreach_meta (buffer, foreach_meta_remove_unpooled, NULL);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == (GstMeta *) meta2);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == NULL);
/* clean up */
gst_buffer_unref (buffer);
}
GST_END_TEST;
GST_START_TEST (test_meta_foreach_remove_several)
{
GstBuffer *buffer;
GstMetaTest *meta1, *meta2, *meta3, *meta4, *meta5;
gpointer state = NULL;
buffer = gst_buffer_new_and_alloc (4);
fail_if (buffer == NULL);
/* add some metadata */
meta1 = GST_META_TEST_ADD (buffer);
fail_if (meta1 == NULL);
meta2 = GST_META_TEST_ADD (buffer);
fail_if (meta2 == NULL);
GST_META_FLAG_SET (meta2, GST_META_FLAG_POOLED);
meta3 = GST_META_TEST_ADD (buffer);
fail_if (meta3 == NULL);
meta4 = GST_META_TEST_ADD (buffer);
fail_if (meta4 == NULL);
meta5 = GST_META_TEST_ADD (buffer);
fail_if (meta5 == NULL);
GST_META_FLAG_SET (meta5, GST_META_FLAG_POOLED);
fail_unless_equals_int (count_buffer_meta (buffer), 5);
gst_buffer_foreach_meta (buffer, foreach_meta_remove_unpooled, NULL);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == (GstMeta *) meta5);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == (GstMeta *) meta2);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == NULL);
/* clean up */
gst_buffer_unref (buffer);
}
GST_END_TEST;
GST_START_TEST (test_meta_iterate)
{
GstBuffer *buffer;
GstMeta *m1, *m2, *m3, *m_found;
GList *metas;
gpointer state;
/* buffer with single meta */
buffer = gst_buffer_new_and_alloc (4);
m1 = (GstMeta *) GST_META_TEST_ADD (buffer);
fail_unless (m1 != NULL);
state = NULL;
fail_unless (gst_buffer_iterate_meta (buffer, &state) != NULL);
fail_unless (gst_buffer_iterate_meta (buffer, &state) == NULL);
state = NULL;
fail_unless (gst_buffer_iterate_meta_filtered (buffer, &state,
GST_META_TEST_API_TYPE) != NULL);
fail_unless (gst_buffer_iterate_meta_filtered (buffer, &state,
GST_META_TEST_API_TYPE) == NULL);
state = NULL;
fail_unless (gst_buffer_iterate_meta_filtered (buffer, &state,
GST_META_FOO_API_TYPE) == NULL);
state = NULL;
fail_unless (gst_buffer_iterate_meta_filtered (buffer, &state,
GST_META_TEST_API_TYPE) != NULL);
fail_unless (gst_buffer_iterate_meta_filtered (buffer, &state,
GST_META_TEST_API_TYPE) == NULL);
/* buffer with multiple metas */
m2 = (GstMeta *) GST_META_FOO_ADD (buffer);
fail_unless (m2 != NULL);
m3 = (GstMeta *) GST_META_TEST_ADD (buffer);
fail_unless (m3 != NULL);
/* create a list with metas, we don't know what order buffer_iterate has */
metas = g_list_prepend (g_list_prepend (g_list_prepend (NULL, m1), m2), m3);
state = NULL;
m_found = gst_buffer_iterate_meta (buffer, &state);
fail_unless (m_found != NULL);
metas = g_list_remove (metas, m_found);
m_found = gst_buffer_iterate_meta (buffer, &state);
fail_unless (m_found != NULL);
metas = g_list_remove (metas, m_found);
m_found = gst_buffer_iterate_meta (buffer, &state);
fail_unless (m_found != NULL);
metas = g_list_remove (metas, m_found);
/* should only have 3 metas, so the 4th time we should get NULL back */
fail_unless (gst_buffer_iterate_meta (buffer, &state) == NULL);
/* list should be empty now, we should have seen each meta once */
fail_unless (metas == NULL);
/* same test as above with iterate_filtered */
/* create a list with metas, we don't know what order buffer_iterate has */
metas = g_list_prepend (g_list_prepend (g_list_prepend (NULL, m1), m2), m3);
state = NULL;
m_found =
gst_buffer_iterate_meta_filtered (buffer, &state, GST_META_TEST_API_TYPE);
fail_unless (m_found != NULL);
metas = g_list_remove (metas, m_found);
m_found =
gst_buffer_iterate_meta_filtered (buffer, &state, GST_META_TEST_API_TYPE);
fail_unless (m_found != NULL);
metas = g_list_remove (metas, m_found);
/* should only have 2 Test metas, so now we should get NULL back */
fail_unless (gst_buffer_iterate_meta_filtered (buffer, &state,
GST_META_TEST_API_TYPE) == NULL);
/* but there should also still be a Foo meta */
fail_unless_equals_int (g_list_length (metas), 1);
fail_unless (metas->data == m2);
metas = g_list_remove (metas, m2);
state = NULL;
m_found =
gst_buffer_iterate_meta_filtered (buffer, &state, GST_META_FOO_API_TYPE);
fail_unless (m_found == m2);
/* only have 1 Foo meta, so now we should get NULL back */
fail_unless (gst_buffer_iterate_meta_filtered (buffer, &state,
GST_META_FOO_API_TYPE) == NULL);
gst_buffer_unref (buffer);
}
GST_END_TEST;
#define test_meta_compare_seqnum(a,b) \
gst_meta_compare_seqnum((GstMeta*)(a),(GstMeta*)(b))
GST_START_TEST (test_meta_seqnum)
{
GstMetaTest *meta1, *meta2, *meta3;
GstBuffer *buffer;
buffer = gst_buffer_new_and_alloc (4);
fail_unless (buffer != NULL);
/* add some metadata */
meta1 = GST_META_TEST_ADD (buffer);
fail_unless (meta1 != NULL);
meta2 = GST_META_TEST_ADD (buffer);
fail_unless (meta2 != NULL);
meta3 = GST_META_TEST_ADD (buffer);
fail_unless (meta3 != NULL);
fail_unless (test_meta_compare_seqnum (meta1, meta2) < 0);
fail_unless (test_meta_compare_seqnum (meta2, meta3) < 0);
fail_unless (test_meta_compare_seqnum (meta1, meta3) < 0);
fail_unless_equals_int (test_meta_compare_seqnum (meta1, meta1), 0);
fail_unless_equals_int (test_meta_compare_seqnum (meta2, meta2), 0);
fail_unless_equals_int (test_meta_compare_seqnum (meta3, meta3), 0);
fail_unless (test_meta_compare_seqnum (meta2, meta1) > 0);
fail_unless (test_meta_compare_seqnum (meta3, meta2) > 0);
fail_unless (test_meta_compare_seqnum (meta3, meta1) > 0);
/* Check that gst_meta_compare_seqnum() works correctly as a GCompareFunc */
{
GList *list;
/* Make list: 3, 1, 2 */
list = g_list_prepend (NULL, meta2);
list = g_list_prepend (list, meta1);
list = g_list_prepend (list, meta3);
list = g_list_sort (list, (GCompareFunc) gst_meta_compare_seqnum);
fail_unless (g_list_nth_data (list, 0) == meta1);
fail_unless (g_list_nth_data (list, 1) == meta2);
fail_unless (g_list_nth_data (list, 2) == meta3);
g_list_free (list);
}
/* clean up */
gst_buffer_unref (buffer);
}
GST_END_TEST;
static Suite *
gst_buffermeta_suite (void)
{
Suite *s = suite_create ("GstMeta");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_meta_test);
tcase_add_test (tc_chain, test_meta_locked);
tcase_add_test (tc_chain, test_meta_foreach_remove_one_of_one);
tcase_add_test (tc_chain, test_meta_foreach_remove_head_of_three);
tcase_add_test (tc_chain, test_meta_foreach_remove_middle_of_three);
tcase_add_test (tc_chain, test_meta_foreach_remove_tail_of_three);
tcase_add_test (tc_chain, test_meta_foreach_remove_head_and_tail_of_three);
tcase_add_test (tc_chain, test_meta_foreach_remove_several);
tcase_add_test (tc_chain, test_meta_iterate);
tcase_add_test (tc_chain, test_meta_seqnum);
return s;
}
GST_CHECK_MAIN (gst_buffermeta);
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