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ndisrc: Reset timestamp tracking if remote time goes backwards

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1727>
This commit is contained in:
Sebastian Dröge 2024-08-22 18:57:45 +03:00
parent ee4416ee5f
commit 871756bb70
1 changed files with 19 additions and 1 deletions
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20
net/ndi/src/ndisrc/imp.rs
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@ -1065,7 +1065,25 @@ impl Observations {
}; };
let local_diff = local_time.saturating_sub(base_local_time); let local_diff = local_time.saturating_sub(base_local_time);
let remote_diff = remote_time.saturating_sub(base_remote_time); let Some(remote_diff) = remote_time.checked_sub(base_remote_time) else {
gst::warning!(CAT, obj = element, "Backwards remote time, resetting",);
let discont = !self.deltas.is_empty();
gst::debug!(
CAT,
obj = element,
"Initializing base time: local {}, remote {}",
local_time,
remote_time,
);
self.reset();
self.base_local_time = Some(local_time);
self.base_remote_time = Some(remote_time);
return Some((local_time, duration, discont));
};
let delta = (local_diff.nseconds() as i64) - (remote_diff.nseconds() as i64); let delta = (local_diff.nseconds() as i64) - (remote_diff.nseconds() as i64);
let slope = local_diff.nseconds() as f64 / remote_diff.nseconds() as f64; let slope = local_diff.nseconds() as f64 / remote_diff.nseconds() as f64;