add chan vars to tell sip to break the rfc and expect the codec payload the…

add chan vars to tell sip to break the rfc and expect the codec payload the other side replies with rather than the one it offered which is the correct behaviour

src/mod/endpoints/mod_sofia/sofia_glue.c

@@ -5138,6 +5138,8 @@ uint8_t sofia_glue_negotiate_sdp(switch_core_session_t *session, const char *r_s
 
 				if (mimp) {
 					char tmp[50];
+					const char *mirror = switch_channel_get_variable(tech_pvt->channel, "sip_mirror_remote_audio_codec_payload");
+
 					tech_pvt->rm_encoding = switch_core_session_strdup(session, (char *) map->rm_encoding);
 					tech_pvt->iananame = switch_core_session_strdup(session, (char *) mimp->iananame);
 					tech_pvt->pt = (switch_payload_t) map->rm_pt;
@@ -5155,7 +5157,9 @@ uint8_t sofia_glue_negotiate_sdp(switch_core_session_t *session, const char *r_s
 					switch_channel_set_variable(tech_pvt->channel, SWITCH_REMOTE_MEDIA_PORT_VARIABLE, tmp);
 					tech_pvt->audio_recv_pt = (switch_payload_t)map->rm_pt;
 					
-					if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND && !sofia_test_flag(tech_pvt, TFLAG_REINVITE)) {
+					if (!switch_true(mirror) && 
+						switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND && 
+						(!sofia_test_flag(tech_pvt, TFLAG_REINVITE) || sofia_test_pflag(tech_pvt->profile, PFLAG_RENEG_ON_REINVITE))) {
 						sofia_glue_get_offered_pt(tech_pvt, mimp, &tech_pvt->audio_recv_pt);
 					}
 					
@@ -5278,6 +5282,8 @@ uint8_t sofia_glue_negotiate_sdp(switch_core_session_t *session, const char *r_s
 				if (mimp) {
 					if ((tech_pvt->video_rm_encoding = switch_core_session_strdup(session, (char *) rm_encoding))) {
 						char tmp[50];
+						const char *mirror = switch_channel_get_variable(tech_pvt->channel, "sip_mirror_remote_video_codec_payload");
+
 						tech_pvt->video_pt = (switch_payload_t) map->rm_pt;
 						tech_pvt->video_rm_rate = map->rm_rate;
 						tech_pvt->video_codec_ms = mimp->microseconds_per_packet / 1000;
@@ -5295,7 +5301,7 @@ uint8_t sofia_glue_negotiate_sdp(switch_core_session_t *session, const char *r_s
 
 						tech_pvt->video_recv_pt = (switch_payload_t)map->rm_pt;
 						
-						if (switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND) {
+						if (!switch_true(mirror) && switch_channel_direction(channel) == SWITCH_CALL_DIRECTION_OUTBOUND) {
 							sofia_glue_get_offered_pt(tech_pvt, mimp, &tech_pvt->video_recv_pt);
 						}