p_sys->stat.i_read_time = i_date - i_start;
i_byterate = ( INT64_C(1000000) * p_sys->stat.i_bytes ) /
(p_sys->stat.i_read_time+1);
p_sys->stat.i_read_time = i_date - i_start;
i_byterate = ( INT64_C(1000000) * p_sys->stat.i_bytes ) /
(p_sys->stat.i_read_time+1);