code: public String bitrate_string(boolean vbr_average)
  	{
  		if (h_vbr && vbr_average)
  		{
  			return Integer.toString(bitrate()/1000)+" kb/s";		
  		}
  	  else return bitrate_str[h_version][h_layer - 1][h_bitrate_index];
  	}
docs: Return Bitrate.
  @param vbr_average: true--> print average bitrate with vbr
  @return bitrate in bps