diff options
author | Keith <keith@rhizomatica.org> | 2019-07-30 15:04:21 +0200 |
---|---|---|
committer | Keith <keith@rhizomatica.org> | 2019-08-01 09:38:55 +0200 |
commit | f9a2a414effb27799bc5d64e7690cd376628da65 (patch) | |
tree | 1206da683049f24cf73e9aa357b29a311480145d | |
parent | a35a7e70bbebf3fa23ec36dd47081a486f00774c (diff) |
Add media mode parameter to sdp_create_file()
This enables call hold implemented by subsequent commits
Prior to this commit, osmo-sip-connector would not send
any media mode attribute in the sdp. After this commit
we will by default always include a=sendrecv.
Given that a media mode attribute of "sendrecv" is default
and implicit it its absense, this does not represent any
functional change.
Change-Id: Ib4212d0174955042e7d80d3744ce632a4942ccb2
-rw-r--r-- | src/sdp.c | 27 | ||||
-rw-r--r-- | src/sdp.h | 3 | ||||
-rw-r--r-- | src/sip.c | 5 |
3 files changed, 29 insertions, 6 deletions
@@ -163,16 +163,35 @@ bool sdp_extract_sdp(struct sip_call_leg *leg, const sip_t *sip, bool any_codec) return true; } -char *sdp_create_file(struct sip_call_leg *leg, struct call_leg *other) +char *sdp_create_file(struct sip_call_leg *leg, struct call_leg *other, sdp_mode_t mode) { struct in_addr net = { .s_addr = htonl(other->ip) }; char *fmtp_str = NULL, *sdp; + char *mode_attribute; leg->wanted_codec = app_media_name(other->payload_msg_type); if (strcmp(leg->wanted_codec, "AMR") == 0) fmtp_str = talloc_asprintf(leg, "a=fmtp:%d octet-align=1\r\n", other->payload_type); + switch (mode) { + case sdp_inactive: + mode_attribute = "a=inactive\r\n"; + break; + case sdp_sendrecv: + mode_attribute = "a=sendrecv\r\n"; + break; + case sdp_sendonly: + mode_attribute = "a=sendonly\r\n"; + break; + case sdp_recvonly: + mode_attribute = "a=recvonly\r\n"; + break; + default: + OSMO_ASSERT(false); + break; + } + sdp = talloc_asprintf(leg, "v=0\r\n" "o=Osmocom 0 0 IN IP4 %s\r\n" @@ -181,12 +200,14 @@ char *sdp_create_file(struct sip_call_leg *leg, struct call_leg *other) "t=0 0\r\n" "m=audio %d RTP/AVP %d\r\n" "%s" - "a=rtpmap:%d %s/8000\r\n", + "a=rtpmap:%d %s/8000\r\n" + "%s", inet_ntoa(net), inet_ntoa(net), /* never use diff. addr! */ other->port, other->payload_type, fmtp_str ? fmtp_str : "", other->payload_type, - leg->wanted_codec); + leg->wanted_codec, + mode_attribute); talloc_free(fmtp_str); return sdp; } @@ -1,6 +1,7 @@ #pragma once #include <sofia-sip/sip.h> +#include <sofia-sip/sdp.h> #include <stdbool.h> @@ -10,4 +11,4 @@ struct call_leg; bool sdp_screen_sdp(const sip_t *sip); bool sdp_extract_sdp(struct sip_call_leg *leg, const sip_t *sip, bool any_codec); -char *sdp_create_file(struct sip_call_leg *, struct call_leg *); +char *sdp_create_file(struct sip_call_leg *, struct call_leg *, sdp_mode_t mode); @@ -28,6 +28,7 @@ #include <sofia-sip/sip_status.h> #include <sofia-sip/su_log.h> +#include <sofia-sip/sdp.h> #include <talloc.h> @@ -385,7 +386,7 @@ static void sip_connect_call(struct call_leg *_leg) return; } - sdp = sdp_create_file(leg, other); + sdp = sdp_create_file(leg, other, sdp_sendrecv); leg->state = SIP_CC_CONNECTED; nua_respond(leg->nua_handle, SIP_200_OK, @@ -425,7 +426,7 @@ static int send_invite(struct sip_agent *agent, struct sip_call_leg *leg, called_num, agent->app->sip.remote_addr, agent->app->sip.remote_port); - char *sdp = sdp_create_file(leg, other); + char *sdp = sdp_create_file(leg, other, sdp_sendrecv); leg->state = SIP_CC_INITIAL; leg->dir = SIP_DIR_MT; |