/**
* SECTION:gstmeta
+ * @title: GstMeta
* @short_description: Buffer metadata
*
* The #GstMeta structure should be included as the first member of a #GstBuffer
*
* See #GstBuffer for how the metadata can be added, retrieved and removed from
* buffers.
- *
- * Last reviewed on 2012-03-28 (0.11.3)
*/
#include "gst_private.h"
GINT_TO_POINTER (TRUE));
}
}
+
+ g_type_set_qdata (type, g_quark_from_string ("tags"),
+ g_strdupv ((gchar **) tags));
+
return type;
}
}
/**
+ * gst_meta_api_type_get_tags:
+ * @api: an API
+ *
+ * Returns: (transfer none) (array zero-terminated=1) (element-type utf8): an array of tags as strings.
+ *
+ * Since: 1.2
+ */
+const gchar *const *
+gst_meta_api_type_get_tags (GType api)
+{
+ const gchar **tags;
+ g_return_val_if_fail (api != 0, FALSE);
+
+ tags = g_type_get_qdata (api, g_quark_from_string ("tags"));
+
+ if (!tags[0])
+ return NULL;
+
+ return (const gchar * const *) tags;
+}
+
+/**
* gst_meta_register:
* @api: the type of the #GstMeta API
* @impl: the name of the #GstMeta implementation
* @size: the size of the #GstMeta structure
- * @init_func: (scope async) a #GstMetaInitFunction
- * @free_func: (scope async) a #GstMetaFreeFunction
- * @transform_func: (scope async) a #GstMetaTransformFunction
+ * @init_func: (scope async): a #GstMetaInitFunction
+ * @free_func: (scope async): a #GstMetaFreeFunction
+ * @transform_func: (scope async): a #GstMetaTransformFunction
*
* Register a new #GstMeta implementation.
*
g_return_val_if_fail (impl != NULL, NULL);
g_return_val_if_fail (size != 0, NULL);
+ if (init_func == NULL)
+ g_critical ("Registering meta implementation '%s' without init function",
+ impl);
+
/* first try to register the implementation name. It's possible
* that this fails because it was already registered. Don't warn,
* glib did this for us already. */
* Lookup a previously registered meta info structure by its implementation name
* @impl.
*
- * Returns: (transfer none): a #GstMetaInfo with @impl, or #NULL when no such
- * metainfo exists.
+ * Returns: (transfer none) (nullable): a #GstMetaInfo with @impl, or
+ * %NULL when no such metainfo exists.
*/
const GstMetaInfo *
gst_meta_get_info (const gchar * impl)