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libobs: Clamp video timing for safety

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os_gettime_ns and os_sleepto_ns may not match up exactly.
This commit is contained in:
jpark37 2022-02-28 09:15:31 -08:00 committed by Jim
parent 7409496c14
commit 4e5906d2b0
1 changed files with 6 additions and 1 deletions
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7
libobs/obs-video.c
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@ -723,7 +723,12 @@ static inline void video_sleep(struct obs_core_video *video, bool raw_active,
*p_time = t;
count = 1;
} else {
count = (int)((os_gettime_ns() - cur_time) / interval_ns);
const uint64_t udiff = os_gettime_ns() - cur_time;
int64_t diff;
memcpy(&diff, &udiff, sizeof(diff));
const uint64_t clamped_diff =
(diff > (int64_t)interval_ns) ? diff : interval_ns;
count = (int)(clamped_diff / interval_ns);
*p_time = cur_time + interval_ns * count;
}