sjero.net Git - linphone/blob - coreapi/linphonecall.c

   1
   2 /*
   3 linphone
   4 Copyright (C) 2010  Belledonne Communications SARL
   5  (simon.morlat@linphone.org)
   6
   7 This program is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU General Public License
   9 as published by the Free Software Foundation; either version 2
  10 of the License, or (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20 */
  21
  22 #include "linphonecore.h"
  23 #include "sipsetup.h"
  24 #include "lpconfig.h"
  25 #include "private.h"
  26
  27
  28
  29
  30 static MSList *make_codec_list(LinphoneCore *lc, const MSList *codecs, bool_t only_one_codec){
  31         MSList *l=NULL;
  32         const MSList *it;
  33         for(it=codecs;it!=NULL;it=it->next){
  34                 PayloadType *pt=(PayloadType*)it->data;
  35                 if ((pt->flags & PAYLOAD_TYPE_ENABLED) && linphone_core_check_payload_type_usability(lc,pt)){
  36                         l=ms_list_append(l,payload_type_clone(pt));
  37                         if (only_one_codec) break;
  38                 }
  39         }
  40         return l;
  41 }
  42
  43 static SalMediaDescription *create_local_media_description(LinphoneCore *lc,
  44                 const char *localip, const char *username, bool_t only_one_codec){
  45         MSList *l;
  46         PayloadType *pt;
  47         SalMediaDescription *md=sal_media_description_new();
  48         md->nstreams=1;
  49         strncpy(md->addr,localip,sizeof(md->addr));
  50         strncpy(md->username,username,sizeof(md->username));
  51         md->bandwidth=linphone_core_get_download_bandwidth(lc);
  52         /*set audio capabilities */
  53         strncpy(md->streams[0].addr,localip,sizeof(md->streams[0].addr));
  54         md->streams[0].port=linphone_core_get_audio_port(lc);
  55         md->streams[0].proto=SalProtoRtpAvp;
  56         md->streams[0].type=SalAudio;
  57         md->streams[0].ptime=lc->net_conf.down_ptime;
  58         l=make_codec_list(lc,lc->codecs_conf.audio_codecs,only_one_codec);
  59         pt=payload_type_clone(rtp_profile_get_payload_from_mime(&av_profile,"telephone-event"));
  60         l=ms_list_append(l,pt);
  61         md->streams[0].payloads=l;
  62
  63         if (lc->dw_audio_bw>0)
  64                 md->streams[0].bandwidth=lc->dw_audio_bw;
  65
  66         if (linphone_core_video_enabled (lc)){
  67                 md->nstreams++;
  68                 md->streams[1].port=linphone_core_get_video_port(lc);
  69                 md->streams[1].proto=SalProtoRtpAvp;
  70                 md->streams[1].type=SalVideo;
  71                 l=make_codec_list(lc,lc->codecs_conf.video_codecs,only_one_codec);
  72                 md->streams[1].payloads=l;
  73                 if (lc->dw_video_bw)
  74                         md->streams[1].bandwidth=lc->dw_video_bw;
  75         }
  76         return md;
  77 }
  78
  79 static void linphone_call_init_common(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
  80         call->refcnt=1;
  81         call->state=LinphoneCallInit;
  82         call->start_time=time(NULL);
  83         call->media_start_time=0;
  84         call->log=linphone_call_log_new(call, from, to);
  85         linphone_core_notify_all_friends(call->core,LINPHONE_STATUS_ONTHEPHONE);
  86         if (linphone_core_get_firewall_policy(call->core)==LINPHONE_POLICY_USE_STUN)
  87                 linphone_core_run_stun_tests(call->core,call);
  88 }
  89
  90 static void discover_mtu(LinphoneCore *lc, const char *remote){
  91         int mtu;
  92         if (lc->net_conf.mtu==0 ){
  93                 /*attempt to discover mtu*/
  94                 mtu=ms_discover_mtu(remote);
  95                 if (mtu>0){
  96                         ms_set_mtu(mtu);
  97                         ms_message("Discovered mtu is %i, RTP payload max size is %i",
  98                                 mtu, ms_get_payload_max_size());
  99                 }
 100         }
 101 }
 102
 103 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to)
 104 {
 105         LinphoneCall *call=ms_new0(LinphoneCall,1);
 106         call->dir=LinphoneCallOutgoing;
 107         call->op=sal_op_new(lc->sal);
 108         sal_op_set_user_pointer(call->op,call);
 109         call->core=lc;
 110         linphone_core_get_local_ip(lc,linphone_address_get_domain(to),call->localip);
 111         call->localdesc=create_local_media_description (lc,call->localip,
 112                 linphone_address_get_username(from),FALSE);
 113         linphone_call_init_common(call,from,to);
 114         discover_mtu(lc,linphone_address_get_domain (to));
 115         return call;
 116 }
 117
 118 LinphoneCall * linphone_call_new_incoming(LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op){
 119         LinphoneCall *call=ms_new0(LinphoneCall,1);
 120         LinphoneAddress *me=linphone_core_get_primary_contact_parsed(lc);
 121         char *to_str;
 122         char *from_str;
 123
 124         call->dir=LinphoneCallIncoming;
 125         sal_op_set_user_pointer(op,call);
 126         call->op=op;
 127         call->core=lc;
 128
 129         if (lc->sip_conf.ping_with_options){
 130                 /*the following sends an option request back to the caller so that
 131                  we get a chance to discover our nat'd address before answering.*/
 132                 call->ping_op=sal_op_new(lc->sal);
 133                 to_str=linphone_address_as_string(to);
 134                 from_str=linphone_address_as_string(from);
 135                 sal_op_set_route(call->ping_op,sal_op_get_network_origin(call->op));
 136                 sal_ping(call->ping_op,to_str,from_str);
 137                 ms_free(to_str);
 138                 ms_free(from_str);
 139         }
 140
 141         linphone_address_clean(from);
 142         linphone_core_get_local_ip(lc,linphone_address_get_domain(from),call->localip);
 143         call->localdesc=create_local_media_description (lc,call->localip,
 144             linphone_address_get_username(me),lc->sip_conf.only_one_codec);
 145         linphone_call_init_common(call, from, to);
 146         discover_mtu(lc,linphone_address_get_domain(from));
 147         linphone_address_destroy(me);
 148         return call;
 149 }
 150
 151 void linphone_call_set_terminated(LinphoneCall *call){
 152         LinphoneCallStatus status=LinphoneCallAborted;
 153         if (call->state==LinphoneCallAVRunning){
 154                 status=LinphoneCallSuccess;
 155         }
 156         linphone_call_log_completed(call->log,call, status);
 157         call->state=LinphoneCallTerminated;
 158 }
 159
 160 static void linphone_call_destroy(LinphoneCall *obj)
 161 {
 162         linphone_core_notify_all_friends(obj->core,obj->core->prev_mode);
 163
 164         linphone_core_update_allocated_audio_bandwidth(obj->core);
 165         if (obj->op!=NULL) {
 166                 sal_op_release(obj->op);
 167                 obj->op=NULL;
 168         }
 169         if (obj->resultdesc!=NULL) {
 170                 sal_media_description_unref(obj->resultdesc);
 171                 obj->resultdesc=NULL;
 172         }
 173         if (obj->localdesc!=NULL) {
 174                 sal_media_description_unref(obj->localdesc);
 175                 obj->localdesc=NULL;
 176         }
 177         if (obj->ping_op) {
 178                 sal_op_release(obj->ping_op);
 179         }
 180         if(linphone_core_del_call(obj->core,obj) != 0)
 181         {
 182                 ms_error("could not remove the call from the list !!!");
 183         }
 184         if(obj == linphone_core_get_current_call(obj->core))
 185         {
 186                 ms_message("destroying the current call\n");
 187                 linphone_core_unset_the_current_call(obj->core);
 188         }
 189         ms_free(obj);
 190 }
 191
 192 void linphone_call_ref(LinphoneCall *obj){
 193         obj->refcnt++;
 194 }
 195
 196 void linphone_call_unref(LinphoneCall *obj){
 197         obj->refcnt--;
 198         if (obj->refcnt==0)
 199                 linphone_call_destroy(obj);
 200 }
 201
 202 bool_t linphone_call_paused(LinphoneCall *call){
 203         return call->state==LinphoneCallPaused;
 204 }
 205
 206 const LinphoneAddress * linphone_call_get_remote_address(const LinphoneCall *call){
 207         return call->dir==LinphoneCallIncoming ? call->log->from : call->log->to;
 208 }
 209
 210 char *linphone_call_get_remote_address_as_string(const LinphoneCall *call){
 211         return linphone_address_as_string(linphone_call_get_remote_address(call));
 212 }
 213
 214 LinphoneCallState linphone_call_get_state(const LinphoneCall *call){
 215         return call->state;
 216 }
 217