void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md){ SalMediaDescription *oldmd=call->resultdesc; if (lc->ringstream!=NULL){ ring_stop(lc->ringstream); lc->ringstream=NULL; } if (new_md!=NULL){ sal_media_description_ref(new_md); call->media_pending=FALSE; }else{ call->media_pending=TRUE; } call->resultdesc=new_md; if (call->audiostream && call->audiostream->ticker){ /* we already started media: check if we really need to restart it*/ if (oldmd){ if (!media_parameters_changed(call,oldmd,new_md) && !call->playing_ringbacktone){ sal_media_description_unref(oldmd); if (call->all_muted){ ms_message("Early media finished, unmuting inputs..."); /*we were in early media, now we want to enable real media */ linphone_call_enable_camera (call,linphone_call_camera_enabled (call)); if (call->audiostream) linphone_core_mute_mic (lc, linphone_core_is_mic_muted(lc)); #ifdef VIDEO_ENABLED if (call->videostream && call->camera_active) video_stream_change_camera(call->videostream,lc->video_conf.device ); #endif } ms_message("No need to restart streams, SDP is unchanged."); return; }else{ ms_message("Media descriptions are different, need to restart the streams."); } } linphone_call_stop_media_streams (call); linphone_call_init_media_streams (call); } if (oldmd) sal_media_description_unref(oldmd); if (new_md) { bool_t all_muted=FALSE; bool_t send_ringbacktone=FALSE; if (call->audiostream==NULL){ /*this happens after pausing the call locally. The streams is destroyed and then we wait the 200Ok to recreate it*/ linphone_call_init_media_streams (call); } if (call->state==LinphoneCallIncomingEarlyMedia && linphone_core_get_remote_ringback_tone (lc)!=NULL){ send_ringbacktone=TRUE; } if (call->state==LinphoneCallIncomingEarlyMedia || (call->state==LinphoneCallOutgoingEarlyMedia && !call->params.real_early_media)){ all_muted=TRUE; } linphone_call_start_media_streams(call,all_muted,send_ringbacktone); } }
void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md){ SalMediaDescription *oldmd=call->resultdesc; bool_t all_muted=FALSE; bool_t send_ringbacktone=FALSE; linphone_core_stop_ringing(lc); if (!new_md) { ms_error("linphone_core_update_streams() called with null media description"); return; } if (call->biggestdesc==NULL || new_md->n_total_streams>call->biggestdesc->n_total_streams){ /*we have been offered and now are ready to proceed, or we added a new stream*/ /*store the media description to remember the mapping of calls*/ if (call->biggestdesc){ sal_media_description_unref(call->biggestdesc); call->biggestdesc=NULL; } if (sal_call_is_offerer(call->op)) call->biggestdesc=sal_media_description_ref(call->localdesc); else call->biggestdesc=sal_media_description_ref(sal_call_get_remote_media_description(call->op)); } sal_media_description_ref(new_md); call->expect_media_in_ack=FALSE; call->resultdesc=new_md; if ((call->audiostream && call->audiostream->ms.ticker) || (call->videostream && call->videostream->ms.ticker)){ /* we already started media: check if we really need to restart it*/ if (oldmd){ int md_changed = media_parameters_changed(call, oldmd, new_md); if ((md_changed & SAL_MEDIA_DESCRIPTION_CODEC_CHANGED) || call->playing_ringbacktone) { ms_message("Media descriptions are different, need to restart the streams."); } else { if (md_changed == SAL_MEDIA_DESCRIPTION_UNCHANGED) { if (call->all_muted){ ms_message("Early media finished, unmuting inputs..."); /*we were in early media, now we want to enable real media */ linphone_call_enable_camera (call,linphone_call_camera_enabled (call)); if (call->audiostream) linphone_core_enable_mic(lc, linphone_core_mic_enabled(lc)); #ifdef VIDEO_ENABLED if (call->videostream && call->camera_enabled) video_stream_change_camera(call->videostream,lc->video_conf.device ); #endif } ms_message("No need to restart streams, SDP is unchanged."); goto end; }else { if (md_changed & SAL_MEDIA_DESCRIPTION_NETWORK_CHANGED) { ms_message("Network parameters have changed, update them."); linphone_core_update_streams_destinations(lc, call, oldmd, new_md); } if (md_changed & SAL_MEDIA_DESCRIPTION_CRYPTO_CHANGED) { ms_message("Crypto parameters have changed, update them."); linphone_call_update_crypto_parameters(call, oldmd, new_md); } goto end; } } } linphone_call_stop_media_streams (call); linphone_call_init_media_streams (call); } if (call->audiostream==NULL){ /*this happens after pausing the call locally. The streams are destroyed and then we wait the 200Ok to recreate them*/ linphone_call_init_media_streams (call); } if (call->state==LinphoneCallIncomingEarlyMedia && linphone_core_get_remote_ringback_tone (lc)!=NULL){ send_ringbacktone=TRUE; } if (call->state==LinphoneCallIncomingEarlyMedia || (call->state==LinphoneCallOutgoingEarlyMedia && !call->params.real_early_media)){ all_muted=TRUE; } linphone_call_start_media_streams(call,all_muted,send_ringbacktone); if (call->state==LinphoneCallPausing && call->paused_by_app && ms_list_size(lc->calls)==1){ linphone_core_play_named_tone(lc,LinphoneToneCallOnHold); } end: if (oldmd) sal_media_description_unref(oldmd); }
static void call_received(SalOp *h){ LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h)); char *barmesg; LinphoneCall *call; const char *from,*to; char *tmp; LinphoneAddress *from_parsed; LinphoneAddress *from_addr, *to_addr; SalMediaDescription *md; bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE); const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc); /* first check if we can answer successfully to this invite */ if (lc->presence_mode==LinphoneStatusBusy || lc->presence_mode==LinphoneStatusOffline || lc->presence_mode==LinphoneStatusDoNotDisturb || lc->presence_mode==LinphoneStatusMoved){ if (lc->presence_mode==LinphoneStatusBusy ) sal_call_decline(h,SalReasonBusy,NULL); else if (lc->presence_mode==LinphoneStatusOffline) sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL); else if (lc->presence_mode==LinphoneStatusDoNotDisturb) sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL); else if (lc->alt_contact!=NULL && lc->presence_mode==LinphoneStatusMoved) sal_call_decline(h,SalReasonRedirect,lc->alt_contact); sal_op_release(h); return; } if (!linphone_core_can_we_add_call(lc)){/*busy*/ sal_call_decline(h,SalReasonBusy,NULL); sal_op_release(h); return; } from=sal_op_get_from(h); to=sal_op_get_to(h); from_addr=linphone_address_new(from); to_addr=linphone_address_new(to); if (is_duplicate_call(lc,from_addr,to_addr)){ ms_warning("Receiving duplicated call, refusing this one."); sal_call_decline(h,SalReasonBusy,NULL); linphone_address_destroy(from_addr); linphone_address_destroy(to_addr); return; } call=linphone_call_new_incoming(lc,from_addr,to_addr,h); sal_call_set_local_media_description(h,call->localdesc); md=sal_call_get_final_media_description(h); if (md && sal_media_description_empty(md)){ sal_call_decline(h,SalReasonMedia,NULL); linphone_call_unref(call); return; } /* the call is acceptable so we can now add it to our list */ linphone_core_add_call(lc,call); from_parsed=linphone_address_new(sal_op_get_from(h)); linphone_address_clean(from_parsed); tmp=linphone_address_as_string(from_parsed); linphone_address_destroy(from_parsed); barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"), (sal_call_autoanswer_asked(h)) ?_(" and asked autoanswer."):_(".")); if (lc->vtable.show) lc->vtable.show(lc); if (lc->vtable.display_status) lc->vtable.display_status(lc,barmesg); /* play the ring if this is the only call*/ if (lc->sound_conf.ring_sndcard!=NULL && ms_list_size(lc->calls)==1){ lc->current_call=call; if (lc->ringstream && lc->dmfs_playing_start_time!=0){ ring_stop(lc->ringstream); lc->ringstream=NULL; lc->dmfs_playing_start_time=0; } if(lc->ringstream==NULL && lc->sound_conf.local_ring){ MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard; ms_message("Starting local ring..."); lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard); } else { ms_message("the local ring is already started"); } }else{ /*TODO : play a tone within the context of the current call */ } linphone_call_ref(call); /*prevent the call from being destroyed while we are notifying, if the user declines within the state callback */ linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call"); if (call->state==LinphoneCallIncomingReceived){ sal_call_notify_ringing(h,propose_early_media || ringback_tone!=NULL); if (propose_early_media || ringback_tone!=NULL){ linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media"); linphone_core_update_streams(lc,call,md); } if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){ linphone_core_accept_call(lc,call); } } linphone_call_unref(call); ms_free(barmesg); ms_free(tmp); }