-void gst_stream_set_stream_type (GstStream *stream, GstStreamType stream_type);
-GstStreamType gst_stream_get_stream_type (GstStream *stream);
+GST_API
+void gst_stream_set_stream_type (GstStream *stream, GstStreamType stream_type);
+
+GST_API
+GstStreamType gst_stream_get_stream_type (GstStream *stream);
+
+GST_API
+void gst_stream_set_tags (GstStream *stream, GstTagList *tags);
+
+GST_API
+GstTagList * gst_stream_get_tags (GstStream *stream);