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4c4d227624
Unfortunately OsmoMGW was never really tested with multiple different codecs on either side of the connection. While OsmoMSC and OsmoBSC only assign exactly one codec on each side this has never been a problem, however it might become a problem when a call agent assigns multiple codecs on one side. This has been observed in a setup where OsmoMGW had one leg towards an external call agent. Also due to recent upgrades to the TTCN3 tests we are now able to simulate different codecs on both sides to pinpoint issues. Testing has shown that OsmoMGW has difficulties with multiple codecs. The reason for this is that the function that makes the codec decision was not fully finished. So let's finish the codec decision function and let's also use that decision when patching the payload type of outgoing RTP packets. Related: OS#5461 Change-Id: I6c3291f825488e5d8ce136aeb18450156794aeb5
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
#pragma once
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#include <osmocom/gsm/i460_mux.h>
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#include <osmocom/abis/e1_input.h>
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#include <osmocom/mgcp/mgcp_ratectr.h>
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#define LOGPTRUNK(trunk, cat, level, fmt, args...) \
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LOGP(cat, level, "trunk:%u " fmt, \
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trunk ? trunk->trunk_nr : 0, \
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## args)
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enum mgcp_trunk_type {
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MGCP_TRUNK_VIRTUAL,
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MGCP_TRUNK_E1,
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};
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extern const struct value_string mgcp_trunk_type_strs[];
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static inline const char *mgcp_trunk_type_strs_str(enum mgcp_trunk_type val)
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{ return get_value_string(mgcp_trunk_type_strs, val); }
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struct mgcp_trunk {
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struct llist_head entry;
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struct mgcp_config *cfg;
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unsigned int trunk_nr;
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enum mgcp_trunk_type trunk_type;
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char *audio_fmtp_extra;
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int audio_send_ptime;
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int audio_send_name;
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int omit_rtcp;
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int keepalive_interval;
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/* RTP patching */
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int force_constant_ssrc; /* 0: don't, 1: once */
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int force_aligned_timing;
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bool rfc5993_hr_convert;
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/* spec handling */
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int force_realloc;
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/* timer */
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struct osmo_timer_list keepalive_timer;
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/* When set, incoming RTP packets are not filtered
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* when ports and ip-address do not match (debug) */
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int rtp_accept_all;
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unsigned int number_endpoints;
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struct mgcp_endpoint **endpoints;
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/* rate counters and stat items to measure the trunks overall performance and health */
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struct mgcp_ratectr_trunk ratectr;
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struct mgcp_stat_trunk stats;
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union {
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/* Virtual trunk specific */
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struct {
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unsigned int vty_number_endpoints;
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} v;
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/* E1 specific */
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struct {
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unsigned int vty_line_nr;
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uint8_t ts_usecount[NUM_E1_TS-1];
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struct osmo_i460_timeslot i460_ts[NUM_E1_TS-1];
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/* Note: on an E1 line TS 0 is devoted to framing and
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* alignment and therefore only NUM_E1_TS-1 timeslots
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* are available for traffic. */
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} e1;
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};
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};
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struct mgcp_trunk *mgcp_trunk_alloc(struct mgcp_config *cfg, enum mgcp_trunk_type ttype, unsigned int nr);
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int mgcp_trunk_equip(struct mgcp_trunk *trunk);
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struct mgcp_trunk *mgcp_trunk_by_num(const struct mgcp_config *cfg, enum mgcp_trunk_type ttype, unsigned int nr);
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struct mgcp_trunk *mgcp_trunk_by_name(const struct mgcp_config *cfg, const char *epname);
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int e1_trunk_nr_from_epname(unsigned int *trunk_nr, const char *epname);
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struct mgcp_trunk *mgcp_trunk_by_line_num(const struct mgcp_config *cfg, unsigned int num);
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/* The virtual trunk is always created on trunk id 0 for historical reasons,
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* use this define constant as ID when allocating a virtual trunk. Other
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* trunks may be assigned with arbritrary id numbers */
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#define MGCP_VIRT_TRUNK_ID 0
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