#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
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)
{
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)) {
+ 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 (&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 (&meta_foo_info, mi);
+ }
+ return meta_foo_info;
+}
+
GST_START_TEST (test_meta_test)
{
GstBuffer *buffer, *copy, *subbuf;
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;
+
static Suite *
gst_buffermeta_suite (void)
{
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_iterate);
return s;
}