[asterisk-bugs] [Asterisk 0015585]: RTCP jitter incorrect
Asterisk Bug Tracker
noreply at bugs.digium.com
Mon Feb 14 07:13:51 CST 2011
A NOTE has been added to this issue.
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https://issues.asterisk.org/view.php?id=15585
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Reported By: viraptor
Assigned To:
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Project: Asterisk
Issue ID: 15585
Category: Core/RTP
Reproducibility: always
Severity: minor
Priority: normal
Status: acknowledged
Asterisk Version: SVN
JIRA:
Regression: No
Reviewboard Link:
SVN Branch (only for SVN checkouts, not tarball releases): N/A
SVN Revision (number only!):
Request Review:
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Date Submitted: 2009-07-26 13:40 CDT
Last Modified: 2011-02-14 07:13 CST
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Summary: RTCP jitter incorrect
Description:
RTCP IA jitter field seems to be calculated incorrectly. The code in
res_rtp_asterisk says:
rtcpheader[5] = htonl((unsigned int)(rtp->rxjitter * 65536.));
Where (rtp->rxjitter) seems to be calculated based on local time (instead
of rtp timestamps), so it's expressed in seconds. If that's true, then
(rtp->rxjitter) should be multiplied by (rate) instead to get the proper
value included in RTCP.
That's the case since 1.4 till the current svn-trunk.
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(0131930) oej (manager) - 2011-02-14 07:13
https://issues.asterisk.org/view.php?id=15585#c131930
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Ping. This is interesting. I've realized that Jitter is all wrong in my
pinefrog work and this issue gives a lot of good feedback I had not seen
before. Thanks.
Issue History
Date Modified Username Field Change
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2011-02-14 07:13 oej Note Added: 0131930
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