forked from mirrors/linphone-iphone
295 lines
8.5 KiB
C
295 lines
8.5 KiB
C
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/*
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linphone
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Copyright (C) 2010 Belledonne Communications SARL
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(simon.morlat@linphone.org)
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef WIN32
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#include <time.h>
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#endif
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#include "linphonecore.h"
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#include "sipsetup.h"
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#include "lpconfig.h"
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#include "private.h"
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static MSList *make_codec_list(LinphoneCore *lc, const MSList *codecs, bool_t only_one_codec){
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MSList *l=NULL;
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const MSList *it;
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for(it=codecs;it!=NULL;it=it->next){
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PayloadType *pt=(PayloadType*)it->data;
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if ((pt->flags & PAYLOAD_TYPE_ENABLED) && linphone_core_check_payload_type_usability(lc,pt)){
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l=ms_list_append(l,payload_type_clone(pt));
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if (only_one_codec) break;
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}
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}
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return l;
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}
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static SalMediaDescription *create_local_media_description(LinphoneCore *lc,
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const char *localip, const char *username, bool_t only_one_codec){
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MSList *l;
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PayloadType *pt;
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SalMediaDescription *md=sal_media_description_new();
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md->nstreams=1;
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strncpy(md->addr,localip,sizeof(md->addr));
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strncpy(md->username,username,sizeof(md->username));
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md->bandwidth=linphone_core_get_download_bandwidth(lc);
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/*set audio capabilities */
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strncpy(md->streams[0].addr,localip,sizeof(md->streams[0].addr));
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md->streams[0].port=linphone_core_get_audio_port(lc);
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md->streams[0].proto=SalProtoRtpAvp;
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md->streams[0].type=SalAudio;
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md->streams[0].ptime=lc->net_conf.down_ptime;
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l=make_codec_list(lc,lc->codecs_conf.audio_codecs,only_one_codec);
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pt=payload_type_clone(rtp_profile_get_payload_from_mime(&av_profile,"telephone-event"));
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l=ms_list_append(l,pt);
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md->streams[0].payloads=l;
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if (lc->dw_audio_bw>0)
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md->streams[0].bandwidth=lc->dw_audio_bw;
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if (linphone_core_video_enabled (lc)){
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md->nstreams++;
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md->streams[1].port=linphone_core_get_video_port(lc);
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md->streams[1].proto=SalProtoRtpAvp;
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md->streams[1].type=SalVideo;
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l=make_codec_list(lc,lc->codecs_conf.video_codecs,only_one_codec);
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md->streams[1].payloads=l;
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if (lc->dw_video_bw)
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md->streams[1].bandwidth=lc->dw_video_bw;
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}
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return md;
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}
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static void linphone_call_init_common(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
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call->refcnt=1;
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call->state=LinphoneCallInit;
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call->start_time=time(NULL);
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call->media_start_time=0;
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call->log=linphone_call_log_new(call, from, to);
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linphone_core_notify_all_friends(call->core,LINPHONE_STATUS_ONTHEPHONE);
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if (linphone_core_get_firewall_policy(call->core)==LINPHONE_POLICY_USE_STUN)
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linphone_core_run_stun_tests(call->core,call);
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}
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static void discover_mtu(LinphoneCore *lc, const char *remote){
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int mtu;
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if (lc->net_conf.mtu==0 ){
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/*attempt to discover mtu*/
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mtu=ms_discover_mtu(remote);
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if (mtu>0){
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ms_set_mtu(mtu);
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ms_message("Discovered mtu is %i, RTP payload max size is %i",
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mtu, ms_get_payload_max_size());
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}
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}
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}
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LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to)
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{
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LinphoneCall *call=ms_new0(LinphoneCall,1);
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call->dir=LinphoneCallOutgoing;
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call->op=sal_op_new(lc->sal);
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sal_op_set_user_pointer(call->op,call);
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call->core=lc;
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linphone_core_get_local_ip(lc,linphone_address_get_domain(to),call->localip);
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call->localdesc=create_local_media_description (lc,call->localip,
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linphone_address_get_username(from),FALSE);
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linphone_call_init_common(call,from,to);
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discover_mtu(lc,linphone_address_get_domain (to));
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return call;
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}
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LinphoneCall * linphone_call_new_incoming(LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op){
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LinphoneCall *call=ms_new0(LinphoneCall,1);
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LinphoneAddress *me=linphone_core_get_primary_contact_parsed(lc);
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char *to_str;
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char *from_str;
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call->dir=LinphoneCallIncoming;
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sal_op_set_user_pointer(op,call);
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call->op=op;
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call->core=lc;
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if (lc->sip_conf.ping_with_options){
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/*the following sends an option request back to the caller so that
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we get a chance to discover our nat'd address before answering.*/
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call->ping_op=sal_op_new(lc->sal);
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to_str=linphone_address_as_string(to);
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from_str=linphone_address_as_string(from);
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sal_op_set_route(call->ping_op,sal_op_get_network_origin(call->op));
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sal_op_set_user_pointer(call->ping_op,call);
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sal_ping(call->ping_op,to_str,from_str);
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ms_free(to_str);
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ms_free(from_str);
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}
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linphone_address_clean(from);
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linphone_core_get_local_ip(lc,linphone_address_get_domain(from),call->localip);
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call->localdesc=create_local_media_description (lc,call->localip,
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linphone_address_get_username(me),lc->sip_conf.only_one_codec);
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linphone_call_init_common(call, from, to);
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discover_mtu(lc,linphone_address_get_domain(from));
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linphone_address_destroy(me);
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return call;
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}
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/* this function is called internally to get rid of a call.
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It performs the following tasks:
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- remove the call from the internal list of calls
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- unref the LinphoneCall object
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- update the call logs accordingly
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*/
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void linphone_call_set_terminated(LinphoneCall *call){
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LinphoneCallStatus status=LinphoneCallAborted;
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LinphoneCore *lc=call->core;
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if (ms_list_size(lc->calls)==0)
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linphone_core_notify_all_friends(lc,lc->prev_mode);
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linphone_core_update_allocated_audio_bandwidth(lc);
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if (call->state==LinphoneCallAVRunning){
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status=LinphoneCallSuccess;
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}
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linphone_call_log_completed(call->log,call, status);
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call->state=LinphoneCallTerminated;
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if (linphone_core_del_call(lc,call) != 0){
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ms_error("could not remove the call from the list !!!");
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}
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if (call == linphone_core_get_current_call(lc)){
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ms_message("destroying the current call\n");
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linphone_core_unset_the_current_call(lc);
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}
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if (call->op!=NULL) {
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/* so that we cannot have anymore upcalls for SAL
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concerning this call*/
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sal_op_release(call->op);
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call->op=NULL;
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}
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linphone_call_unref(call);
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}
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static void linphone_call_destroy(LinphoneCall *obj)
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{
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if (obj->op!=NULL) {
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sal_op_release(obj->op);
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obj->op=NULL;
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}
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if (obj->resultdesc!=NULL) {
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sal_media_description_unref(obj->resultdesc);
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obj->resultdesc=NULL;
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}
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if (obj->localdesc!=NULL) {
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sal_media_description_unref(obj->localdesc);
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obj->localdesc=NULL;
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}
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if (obj->ping_op) {
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sal_op_release(obj->ping_op);
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}
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ms_free(obj);
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}
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/**
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* @addtogroup calls
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* @{
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**/
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/**
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* Increments the call 's reference count.
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* An application that wishes to retain a pointer to call object
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* must use this function to unsure the pointer remains
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* valid. Once the application no more needs this pointer,
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* it must call linphone_call_unref().
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**/
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void linphone_call_ref(LinphoneCall *obj){
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obj->refcnt++;
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}
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/**
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* Decrements the call object reference count.
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* See linphone_call_ref().
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**/
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void linphone_call_unref(LinphoneCall *obj){
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obj->refcnt--;
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if (obj->refcnt==0)
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linphone_call_destroy(obj);
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}
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/**
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* Returns true if the call is paused.
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**/
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bool_t linphone_call_paused(LinphoneCall *call){
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return call->state==LinphoneCallPaused;
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}
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/**
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* Returns the remote address associated to this call
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*
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**/
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const LinphoneAddress * linphone_call_get_remote_address(const LinphoneCall *call){
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return call->dir==LinphoneCallIncoming ? call->log->from : call->log->to;
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}
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/**
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* Returns the remote address associated to this call as a string.
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*
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* The result string must be freed by user using ms_free().
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**/
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char *linphone_call_get_remote_address_as_string(const LinphoneCall *call){
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return linphone_address_as_string(linphone_call_get_remote_address(call));
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}
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/**
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* Retrieves the call's current state.
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**/
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LinphoneCallState linphone_call_get_state(const LinphoneCall *call){
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return call->state;
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}
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/**
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* Get the user_pointer in the LinphoneCall
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*
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* @ingroup call_control
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*
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* return user_pointer an opaque user pointer that can be retrieved at any time
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**/
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void *linphone_call_get_user_pointer(LinphoneCall *call)
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{
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return call->user_pointer;
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}
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/**
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* Set the user_pointer in the LinphoneCall
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*
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* @ingroup call_control
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*
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* the user_pointer is an opaque user pointer that can be retrieved at any time in the LinphoneCall
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**/
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void linphone_call_set_user_pointer(LinphoneCall *call, void *user_pointer)
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{
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call->user_pointer = user_pointer;
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}
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/**
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* @}
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**/
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