let (tb_num, tb_den) = str.get_timebase();
let pts = counter[stream_no];
let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den);
let (tb_num, tb_den) = str.get_timebase();
let pts = counter[stream_no];
let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den);