+ /* join memory parts */
+ gst_rtp_copy_audio_meta (rtpmp4apay, outbuf, paybuf);
+ outbuf = gst_buffer_append (outbuf, paybuf);
+ gst_buffer_list_add (list, outbuf);
+ offset += payload_len;
+ size -= payload_len;
+
+ /* copy incoming timestamp (if any) to outgoing buffers */
+ GST_BUFFER_PTS (outbuf) = timestamp;