- tvadd(tv_expect, pl_frame_interval);
- diff = tvdiff(tv_expect, now);
- if (diff > MAX_LAG_FRAMES * pl_frame_interval || diff < -MAX_LAG_FRAMES * pl_frame_interval) {
- //printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, pl_frame_interval);
+ // tv_expect uses usec*1024 units instead of usecs for better accuracy
+ tv_expect.tv_usec += frame_interval1024;
+ if (tv_expect.tv_usec >= (1000000 << 10)) {
+ tv_expect.tv_usec -= (1000000 << 10);
+ tv_expect.tv_sec++;
+ }
+ diff = (tv_expect.tv_sec - now.tv_sec) * 1000000 + (tv_expect.tv_usec >> 10) - now.tv_usec;
+
+ if (diff > MAX_LAG_FRAMES * frame_interval || diff < -MAX_LAG_FRAMES * frame_interval) {
+ //printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, frame_interval);