diff options
| author | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2013-12-04 10:30:11 +0100 |
|---|---|---|
| committer | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2013-12-10 11:17:44 +0100 |
| commit | f6ec0e9fc4261d2173286e9b23fd19060040d1d1 (patch) | |
| tree | f0dbbb3581da797161cbc4a713781333a15439e0 /openbsc/include/openbsc | |
| parent | 58340e5b5bfa37b09a61d544904330c1932ccfec (diff) | |
mgcp/rtp: Refactored packet_duration computation
Since the packet duration is given in ms with the 'ptime' RTP media
attribute and also with the 'p' MGCP local connection option, the
computation is changed to use this value (if present). The
computation assumes, that there are N complete frames in a packet and
takes into account, that the ptime value possibly had been rounded
towards the next ms value (which is never the case with a frame length
of exact 20ms).
Sponsored-by: On-Waves ehf
Diffstat (limited to 'openbsc/include/openbsc')
| -rw-r--r-- | openbsc/include/openbsc/mgcp_internal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/openbsc/include/openbsc/mgcp_internal.h b/openbsc/include/openbsc/mgcp_internal.h index b6f4a0df1..d59c5d7cb 100644 --- a/openbsc/include/openbsc/mgcp_internal.h +++ b/openbsc/include/openbsc/mgcp_internal.h @@ -82,6 +82,7 @@ struct mgcp_rtp_end { uint32_t frame_duration_num; uint32_t frame_duration_den; int frames_per_packet; + uint32_t packet_duration_ms; char *fmtp_extra; /* RTP patching */ @@ -180,6 +181,8 @@ struct mgcp_trunk_config *mgcp_trunk_num(struct mgcp_config *cfg, int index); void mgcp_rtp_end_config(struct mgcp_endpoint *endp, int expect_ssrc_change, struct mgcp_rtp_end *rtp); +uint32_t mgcp_rtp_packet_duration(struct mgcp_endpoint *endp, + struct mgcp_rtp_end *rtp); void mgcp_state_calc_loss(struct mgcp_rtp_state *s, struct mgcp_rtp_end *, uint32_t *expected, int *loss); |