diff options
| author | Holger Hans Peter Freyther <zecke@selfish.org> | 2012-10-24 20:31:25 +0200 |
|---|---|---|
| committer | Holger Hans Peter Freyther <zecke@selfish.org> | 2012-11-12 10:45:03 +0100 |
| commit | 30690adbc81a1fe15eb5e48b3201772486d79ed0 (patch) | |
| tree | 0efb8f0cb11025304234cfe718076b9b55df615e /openbsc/include/openbsc/mgcp_internal.h | |
| parent | 38e02c51250d61bb78912a4f8e67a650691c5149 (diff) | |
mgcp: Calculate the jitter with the formula/code from the appendix
Use a usec timestamp for the local time. The seconds to usec will
swap over to the lower bits but this appears to be correct. The
CLOCK_MONOTONIC is used to fulfill the RFC 3550 requirement even
if it is a bit slower than the gettimeofday.
Make sure to initialize transit in a way that the first transit
time will be 0. Otherwise the jitter will contain the difference
of the localtime and the remote time.
Diffstat (limited to 'openbsc/include/openbsc/mgcp_internal.h')
| -rw-r--r-- | openbsc/include/openbsc/mgcp_internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/openbsc/include/openbsc/mgcp_internal.h b/openbsc/include/openbsc/mgcp_internal.h index 6e2072fdb..759745a07 100644 --- a/openbsc/include/openbsc/mgcp_internal.h +++ b/openbsc/include/openbsc/mgcp_internal.h @@ -54,6 +54,8 @@ struct mgcp_rtp_state { uint32_t last_timestamp; int32_t timestamp_offset; + uint32_t jitter; + int32_t transit; }; struct mgcp_rtp_end { |