[Bug 785733] rtpbin: ntp-sync does no sanity checking for clock sync
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Fri Sep 15 10:34:07 UTC 2017
https://bugzilla.gnome.org/show_bug.cgi?id=785733
Sebastian Dröge (slomo) <slomo at coaxion.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #15 from Sebastian Dröge (slomo) <slomo at coaxion.net> ---
commit 3de02445320fcf880bc57f93e2abc34e4b28ea58 (HEAD -> master)
Author: Patrick Radizi <patrickr at axis.com>
Date: Thu Sep 14 13:00:56 2017 +0200
rtpbin: add option for sanity checking timestamp offset
Timestamp offsets needs to be checked to detect unrealistic values
caused for example by NTP clocks not in sync. The new parameter
max-ts-offset lets the user decide an upper offset limit. There
are two different cases for checking the offset based on if
ntp-sync is used or not:
1) ntp-sync enabled
Only negative offsest are allowed since a positive offset would
mean that the sender and receiver clocks are not in sync.
Default vaule of max-ts-offset = 0 (disabled)
2) ntp-sync disabled
Both positive and negative offsets are allowed.
Default vaule of max-ts-offset = 3000000000
The reason for different default values is to be backwards
compatible.
https://bugzilla.gnome.org/show_bug.cgi?id=785733
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