tree cf5244f6d4f3873b00fd5c2b677236f0e377abc8
parent ec37bb29563c92bf405b732019db4ed3b2cc9477
author Jacob Erlbeck <jerlbeck@sysmocom.de> 1385380408 +0100
committer Holger Hans Peter Freyther <holger@moiji-mobile.com> 1385399241 +0100

mgcp/rtp: Add counter for invalid RTP timestamp deltas

This patch modifies the patch_and_count() function to check for RTP
timestamp inconsistencies. It basically checks, whether dTS/dSeqNo
remains constant. If this fails, the corresponding counter is
incremented. There are four counter for this: Incoming and outgoing,
each for streams from the BTS and the net.

Note that this approach presumes, that the per RTP packet duration
(in samples) remains the same throughout the entire stream. Changing
the number of speech frames per channel and packet will be detected
as error.

In addition, the VTY command 'show mgcp' is extended by an optional
'stats' to show the counter values, too.

Ticket: OW#964
Sponsored-by: On-Waves ehf