- int64_t late = now - next->age;
- int count = late / next->period;
- int nfrms = count > 0 ? count : 1;
- if( !next->next_frame(nfrms) )
+ if( !next->seq_no ) next->cycle_start = now;
+ int64_t ref_no = (now - next->cycle_start) / 1000 * refresh_rate;
+ int count = ref_no - next->seq_no;
+ if( count < 1 ) count = 1;
+ next->age += count * 1000 / refresh_rate;
+ if( !next->set_seq_no(next->seq_no + count) )