code: private RTPInfo processMediaDescription(final Connection connection, final MediaDescription md)
              throws SdpParseException {
          final Media m = md.getMedia();
          if ("RTP/AVP".equalsIgnoreCase(m.getProtocol())) {
              final Connection c = md.getConnection() != null ? null : connection;
              return new RTPInfoImpl(connection, md);
          }
          return null;
      }
docs: Convenience method for creating a new {@link RTPInfo} object.
  
  @param connection
  the connection (the c-field) information from the SDP or null
  if there were none.
  @param md
  the media description from the SDP
  @return a new {@link RTPInfo} object if the {@link MediaDescription} was
  of type "RTP/AVP", otherwise null.
  @throws SdpParseException