+GST_API
+GstContext * gst_context_new (const gchar * context_type,
+ gboolean persistent) G_GNUC_MALLOC;
+GST_API
+const gchar * gst_context_get_context_type (const GstContext * context);
+
+GST_API
+gboolean gst_context_has_context_type (const GstContext * context, const gchar * context_type);
+
+GST_API
+const GstStructure * gst_context_get_structure (const GstContext * context);