add_buffering_range
  
  Description:
  public bool add_buffering_range (
int64 start, 
int64 stop)
  
 
  
    Set the buffering-ranges array field in this.
     The current last start position of the array should be inferior to start.
    Parameters:
    
      
        | this | 
        
           a GST_QUERY_BUFFERING type query Query 
         | 
      
      
        | start | 
        
           start position of the range 
         | 
      
      
        | stop | 
        
           stop position of the range 
         | 
      
    
    Returns:
    
      
        | 
           a bool indicating if the range was added or not. 
         |