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

   1 /*
   2 linphone
   3 Copyright (C) 2000  Simon MORLAT (simon.morlat@linphone.org)
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19
  20 #include "linphonecore.h"
  21 #include "sipsetup.h"
  22 #include "lpconfig.h"
  23 #include "private.h"
  24 #include "mediastreamer2/mediastream.h"
  25 #include "mediastreamer2/msvolume.h"
  26 #include "mediastreamer2/msequalizer.h"
  27
  28 #include <ortp/telephonyevents.h>
  29
  30
  31 #ifdef INET6
  32 #ifndef WIN32
  33 #include <netdb.h>
  34 #endif
  35 #endif
  36
  37 /*#define UNSTANDART_GSM_11K 1*/
  38
  39 static const char *liblinphone_version=LIBLINPHONE_VERSION;
  40 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable);
  41
  42 #include "enum.h"
  43
  44 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result);
  45 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
  46
  47 /* relative path where is stored local ring*/
  48 #define LOCAL_RING "rings/oldphone.wav"
  49 /* same for remote ring (ringback)*/
  50 #define REMOTE_RING "ringback.wav"
  51
  52 extern SalCallbacks linphone_sal_callbacks;
  53
  54 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
  55 {
  56   obj->_func=func;
  57   obj->_user_data=ud;
  58 }
  59
  60 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
  61         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
  62         return 0;
  63 }
  64
  65
  66 static MSList *make_codec_list(const MSList *codecs, bool_t only_one_codec){
  67         MSList *l=NULL;
  68         const MSList *it;
  69         for(it=codecs;it!=NULL;it=it->next){
  70                 PayloadType *pt=(PayloadType*)it->data;
  71                 if (pt->flags & PAYLOAD_TYPE_ENABLED){
  72                         l=ms_list_append(l,payload_type_clone(pt));
  73                         if (only_one_codec) break;
  74                 }
  75         }
  76         return l;
  77 }
  78
  79 static SalMediaDescription *create_local_media_description(LinphoneCore *lc,
  80                 const char *localip, const char *username, bool_t only_one_codec){
  81         MSList *l;
  82         PayloadType *pt;
  83         SalMediaDescription *md=sal_media_description_new();
  84         md->nstreams=1;
  85         strncpy(md->addr,localip,sizeof(md->addr));
  86         strncpy(md->username,username,sizeof(md->username));
  87         /*set audio capabilities */
  88         strncpy(md->streams[0].addr,localip,sizeof(md->streams[0].addr));
  89         md->streams[0].port=linphone_core_get_audio_port(lc);
  90         md->streams[0].proto=SalProtoRtpAvp;
  91         md->streams[0].type=SalAudio;
  92         md->streams[0].ptime=lc->net_conf.down_ptime;
  93         l=make_codec_list(lc->codecs_conf.audio_codecs,only_one_codec);
  94         pt=payload_type_clone(rtp_profile_get_payload_from_mime(&av_profile,"telephone-event"));
  95         l=ms_list_append(l,pt);
  96         md->streams[0].payloads=l;
  97
  98         if (lc->dw_audio_bw>0)
  99                 md->streams[0].bandwidth=lc->dw_audio_bw;
 100
 101         if (linphone_core_video_enabled (lc)){
 102                 md->nstreams++;
 103                 md->streams[1].port=linphone_core_get_video_port(lc);
 104                 md->streams[1].proto=SalProtoRtpAvp;
 105                 md->streams[1].type=SalVideo;
 106                 l=make_codec_list(lc->codecs_conf.video_codecs,only_one_codec);
 107                 md->streams[1].payloads=l;
 108                 if (lc->dw_video_bw)
 109                         md->streams[1].bandwidth=lc->dw_video_bw;
 110         }
 111         return md;
 112 }
 113
 114 static void linphone_call_init_common(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 115         call->state=LCStateInit;
 116         call->start_time=time(NULL);
 117         call->media_start_time=0;
 118         call->log=linphone_call_log_new(call, from, to);
 119         linphone_core_notify_all_friends(call->core,LINPHONE_STATUS_ONTHEPHONE);
 120         if (linphone_core_get_firewall_policy(call->core)==LINPHONE_POLICY_USE_STUN)
 121                 linphone_core_run_stun_tests(call->core,call);
 122 }
 123
 124 static void discover_mtu(LinphoneCore *lc, const char *remote){
 125         int mtu;
 126         if (lc->net_conf.mtu==0 ){
 127                 /*attempt to discover mtu*/
 128                 mtu=ms_discover_mtu(remote);
 129                 if (mtu>0){
 130                         ms_set_mtu(mtu);
 131                         ms_message("Discovered mtu is %i, RTP payload max size is %i",
 132                                 mtu, ms_get_payload_max_size());
 133                 }
 134         }
 135 }
 136
 137 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to)
 138 {
 139         LinphoneCall *call=ms_new0(LinphoneCall,1);
 140         call->dir=LinphoneCallOutgoing;
 141         call->op=sal_op_new(lc->sal);
 142         sal_op_set_user_pointer(call->op,call);
 143         call->core=lc;
 144         linphone_core_get_local_ip(lc,linphone_address_get_domain(to),call->localip);
 145         call->localdesc=create_local_media_description (lc,call->localip,
 146                 linphone_address_get_username(from),FALSE);
 147         linphone_call_init_common(call,from,to);
 148         discover_mtu(lc,linphone_address_get_domain (to));
 149         return call;
 150 }
 151
 152 LinphoneCall * linphone_call_new_incoming(LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op){
 153         LinphoneCall *call=ms_new0(LinphoneCall,1);
 154         LinphoneAddress *me=linphone_core_get_primary_contact_parsed(lc);
 155         char *to_str;
 156         char *from_str;
 157
 158         call->dir=LinphoneCallIncoming;
 159         sal_op_set_user_pointer(op,call);
 160         call->op=op;
 161         call->core=lc;
 162
 163         if (lc->sip_conf.ping_with_options){
 164                 /*the following sends an option request back to the caller so that
 165                  we get a chance to discover our nat'd address before answering.*/
 166                 call->ping_op=sal_op_new(lc->sal);
 167                 to_str=linphone_address_as_string(to);
 168                 from_str=linphone_address_as_string(from);
 169                 sal_op_set_route(call->ping_op,sal_op_get_network_origin(call->op));
 170                 sal_ping(call->ping_op,to_str,from_str);
 171                 ms_free(to_str);
 172                 ms_free(from_str);
 173         }
 174
 175         linphone_address_clean(from);
 176         linphone_core_get_local_ip(lc,linphone_address_get_domain(from),call->localip);
 177         call->localdesc=create_local_media_description (lc,call->localip,
 178             linphone_address_get_username(me),lc->sip_conf.only_one_codec);
 179         linphone_call_init_common(call, from, to);
 180         discover_mtu(lc,linphone_address_get_domain(from));
 181         linphone_address_destroy(me);
 182         return call;
 183 }
 184
 185 void linphone_call_destroy(LinphoneCall *obj)
 186 {
 187         linphone_core_notify_all_friends(obj->core,obj->core->prev_mode);
 188         linphone_call_log_completed(obj->log,obj);
 189         linphone_core_update_allocated_audio_bandwidth(obj->core);
 190         if (obj->op!=NULL) {
 191                 sal_op_release(obj->op);
 192                 obj->op=NULL;
 193         }
 194         if (obj->resultdesc!=NULL) {
 195                 sal_media_description_unref(obj->resultdesc);
 196                 obj->resultdesc=NULL;
 197         }
 198         if (obj->localdesc!=NULL) {
 199                 sal_media_description_unref(obj->localdesc);
 200                 obj->localdesc=NULL;
 201         }
 202         if (obj->ping_op) {
 203                 sal_op_release(obj->ping_op);
 204         }
 205         ms_free(obj);
 206 }
 207
 208 /*prevent a gcc bug with %c*/
 209 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
 210 #if !defined(_WIN32_WCE)
 211         return strftime(s, max, fmt, tm);
 212 #else
 213         return 0;
 214         /*FIXME*/
 215 #endif /*_WIN32_WCE*/
 216 }
 217
 218 static void set_call_log_date(LinphoneCallLog *cl, const struct tm *loctime){
 219         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",loctime);
 220 }
 221
 222 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 223         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 224         struct tm loctime;
 225         cl->dir=call->dir;
 226 #ifdef WIN32
 227 #if !defined(_WIN32_WCE)
 228         loctime=*localtime(&call->start_time);
 229         /*FIXME*/
 230 #endif /*_WIN32_WCE*/
 231 #else
 232         localtime_r(&call->start_time,&loctime);
 233 #endif
 234         set_call_log_date(cl,&loctime);
 235         cl->from=from;
 236         cl->to=to;
 237         return cl;
 238 }
 239
 240 static void call_logs_write_to_config_file(LinphoneCore *lc){
 241         MSList *elem;
 242         char logsection[32];
 243         int i;
 244         char *tmp;
 245         LpConfig *cfg=lc->config;
 246
 247         if (!lc->ready) return;
 248
 249         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
 250                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
 251                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 252                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
 253                 lp_config_set_int(cfg,logsection,"status",cl->status);
 254                 tmp=linphone_address_as_string(cl->from);
 255                 lp_config_set_string(cfg,logsection,"from",tmp);
 256                 ms_free(tmp);
 257                 tmp=linphone_address_as_string(cl->to);
 258                 lp_config_set_string(cfg,logsection,"to",tmp);
 259                 ms_free(tmp);
 260                 lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
 261                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
 262                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
 263         }
 264         for(;i<lc->max_call_logs;++i){
 265                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 266                 lp_config_clean_section(cfg,logsection);
 267         }
 268 }
 269
 270 static void call_logs_read_from_config_file(LinphoneCore *lc){
 271         char logsection[32];
 272         int i;
 273         const char *tmp;
 274         LpConfig *cfg=lc->config;
 275         for(i=0;;++i){
 276                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 277                 if (lp_config_has_section(cfg,logsection)){
 278                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 279                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
 280                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
 281                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
 282                         if (tmp) cl->from=linphone_address_new(tmp);
 283                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
 284                         if (tmp) cl->to=linphone_address_new(tmp);
 285                         tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
 286                         if (tmp) strncpy(cl->start_date,tmp,sizeof(cl->start_date));
 287                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
 288                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
 289                         if (tmp) cl->refkey=ms_strdup(tmp);
 290                         lc->call_logs=ms_list_append(lc->call_logs,cl);
 291                 }else break;
 292         }
 293 }
 294
 295
 296 void linphone_call_log_completed(LinphoneCallLog *calllog, LinphoneCall *call){
 297         LinphoneCore *lc=call->core;
 298
 299         calllog->duration=time(NULL)-call->start_time;
 300         switch(call->state){
 301                 case LCStateInit:
 302                 case LCStatePreEstablishing:
 303                         calllog->status=LinphoneCallAborted;
 304                         break;
 305                 case LCStateRinging:
 306                         if (calllog->dir==LinphoneCallIncoming){
 307                                 char *info;
 308                                 calllog->status=LinphoneCallMissed;
 309                                 lc->missed_calls++;
 310                                 info=ortp_strdup_printf(ngettext("You have missed %i call.",
 311                             "You have missed %i calls.", lc->missed_calls),
 312                         lc->missed_calls);
 313                                 lc->vtable.display_status(lc,info);
 314                                 ms_free(info);
 315                         }
 316                         else calllog->status=LinphoneCallAborted;
 317                         break;
 318                 case LCStateAVRunning:
 319                         calllog->status=LinphoneCallSuccess;
 320                         break;
 321         }
 322         lc->call_logs=ms_list_prepend(lc->call_logs,(void *)calllog);
 323         if (ms_list_size(lc->call_logs)>lc->max_call_logs){
 324                 MSList *elem,*prevelem=NULL;
 325                 /*find the last element*/
 326                 for(elem=lc->call_logs;elem!=NULL;elem=elem->next){
 327                         prevelem=elem;
 328                 }
 329                 elem=prevelem;
 330                 linphone_call_log_destroy((LinphoneCallLog*)elem->data);
 331                 lc->call_logs=ms_list_remove_link(lc->call_logs,elem);
 332         }
 333         if (lc->vtable.call_log_updated!=NULL){
 334                 lc->vtable.call_log_updated(lc,calllog);
 335         }
 336         call_logs_write_to_config_file(lc);
 337 }
 338
 339 /**
 340  * @addtogroup call_logs
 341  * @{
 342 **/
 343
 344 /**
 345  * Returns a human readable string describing the call.
 346  *
 347  * @note: the returned char* must be freed by the application (use ms_free()).
 348 **/
 349 char * linphone_call_log_to_str(LinphoneCallLog *cl){
 350         char *status;
 351         char *tmp;
 352         char *from=linphone_address_as_string (cl->from);
 353         char *to=linphone_address_as_string (cl->to);
 354         switch(cl->status){
 355                 case LinphoneCallAborted:
 356                         status=_("aborted");
 357                         break;
 358                 case LinphoneCallSuccess:
 359                         status=_("completed");
 360                         break;
 361                 case LinphoneCallMissed:
 362                         status=_("missed");
 363                         break;
 364                 default:
 365                         status="unknown";
 366         }
 367         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
 368                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
 369                         cl->start_date,
 370                         from,
 371                         to,
 372                         status,
 373                         cl->duration/60,
 374                         cl->duration%60);
 375         ms_free(from);
 376         ms_free(to);
 377         return tmp;
 378 }
 379
 380 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
 381         cl->user_pointer=up;
 382 }
 383
 384 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
 385         return cl->user_pointer;
 386 }
 387
 388
 389
 390 /**
 391  * Associate a persistent reference key to the call log.
 392  *
 393  * The reference key can be for example an id to an external database.
 394  * It is stored in the config file, thus can survive to process exits/restarts.
 395  *
 396 **/
 397 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
 398         if (cl->refkey!=NULL){
 399                 ms_free(cl->refkey);
 400                 cl->refkey=NULL;
 401         }
 402         if (refkey) cl->refkey=ms_strdup(refkey);
 403         call_logs_write_to_config_file(cl->lc);
 404 }
 405
 406 /**
 407  * Get the persistent reference key associated to the call log.
 408  *
 409  * The reference key can be for example an id to an external database.
 410  * It is stored in the config file, thus can survive to process exits/restarts.
 411  *
 412 **/
 413 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
 414         return cl->refkey;
 415 }
 416
 417 /** @} */
 418
 419 void linphone_call_log_destroy(LinphoneCallLog *cl){
 420         if (cl->from!=NULL) linphone_address_destroy(cl->from);
 421         if (cl->to!=NULL) linphone_address_destroy(cl->to);
 422         if (cl->refkey!=NULL) ms_free(cl->refkey);
 423         ms_free(cl);
 424 }
 425
 426 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
 427         LinphoneCall *call=lc->call;
 428         if (call==NULL) return 0;
 429         if (call->media_start_time==0) return 0;
 430         return time(NULL)-call->media_start_time;
 431 }
 432
 433 const LinphoneAddress *linphone_core_get_remote_uri(LinphoneCore *lc){
 434         LinphoneCall *call=lc->call;
 435         if (call==NULL) return 0;
 436         return call->dir==LinphoneCallIncoming ? call->log->from : call->log->to;
 437 }
 438
 439 /**
 440  * Enable logs in supplied FILE*.
 441  *
 442  * @ingroup misc
 443  *
 444  * @param file a C FILE* where to fprintf logs. If null stdout is used.
 445  *
 446 **/
 447 void linphone_core_enable_logs(FILE *file){
 448         if (file==NULL) file=stdout;
 449         ortp_set_log_file(file);
 450         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 451 }
 452
 453 /**
 454  * Enable logs through the user's supplied log callback.
 455  *
 456  * @ingroup misc
 457  *
 458  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
 459  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
 460  *
 461 **/
 462 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
 463         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 464         ortp_set_log_handler(logfunc);
 465 }
 466
 467 /**
 468  * Entirely disable logging.
 469  *
 470  * @ingroup misc
 471 **/
 472 void linphone_core_disable_logs(){
 473         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
 474 }
 475
 476
 477 static void
 478 net_config_read (LinphoneCore *lc)
 479 {
 480         int tmp;
 481         const char *tmpstr;
 482         LpConfig *config=lc->config;
 483
 484         tmp=lp_config_get_int(config,"net","download_bw",0);
 485         linphone_core_set_download_bandwidth(lc,tmp);
 486         tmp=lp_config_get_int(config,"net","upload_bw",0);
 487         linphone_core_set_upload_bandwidth(lc,tmp);
 488         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
 489         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
 490         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
 491         linphone_core_set_nat_address(lc,tmpstr);
 492         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
 493         linphone_core_set_firewall_policy(lc,tmp);
 494         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
 495         lc->net_conf.nat_sdp_only=tmp;
 496         tmp=lp_config_get_int(lc->config,"net","mtu",0);
 497         linphone_core_set_mtu(lc,tmp);
 498         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 499         linphone_core_set_download_ptime(lc,tmp);
 500
 501 }
 502
 503 static void build_sound_devices_table(LinphoneCore *lc){
 504         const char **devices;
 505         const char **old;
 506         int ndev;
 507         int i;
 508         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
 509         ndev=ms_list_size(elem);
 510         devices=ms_malloc((ndev+1)*sizeof(const char *));
 511         for (i=0;elem!=NULL;elem=elem->next,i++){
 512                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
 513         }
 514         devices[ndev]=NULL;
 515         old=lc->sound_conf.cards;
 516         lc->sound_conf.cards=devices;
 517         if (old!=NULL) ms_free(old);
 518 }
 519
 520 static void sound_config_read(LinphoneCore *lc)
 521 {
 522         /*int tmp;*/
 523         const char *tmpbuf;
 524         const char *devid;
 525         float gain=0;
 526 #ifdef __linux
 527         /*alsadev let the user use custom alsa device within linphone*/
 528         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
 529         if (devid){
 530                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
 531                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
 532         }
 533 #endif
 534         /* retrieve all sound devices */
 535         build_sound_devices_table(lc);
 536
 537         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
 538         linphone_core_set_playback_device(lc,devid);
 539
 540         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
 541         linphone_core_set_ringer_device(lc,devid);
 542
 543         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
 544         linphone_core_set_capture_device(lc,devid);
 545
 546 /*
 547         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
 548         linphone_core_set_play_level(lc,tmp);
 549         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
 550         linphone_core_set_ring_level(lc,tmp);
 551         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
 552         linphone_core_set_rec_level(lc,tmp);
 553         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
 554         linphone_core_set_sound_source(lc,tmpbuf[0]);
 555 */
 556
 557         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 558         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
 559         if (ortp_file_exist(tmpbuf)==-1) {
 560                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 561         }
 562         if (strstr(tmpbuf,".wav")==NULL){
 563                 /* it currently uses old sound files, so replace them */
 564                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 565         }
 566
 567         linphone_core_set_ring(lc,tmpbuf);
 568
 569         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 570         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
 571         if (ortp_file_exist(tmpbuf)==-1){
 572                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 573         }
 574         if (strstr(tmpbuf,".wav")==NULL){
 575                 /* it currently uses old sound files, so replace them */
 576                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 577         }
 578         linphone_core_set_ringback(lc,tmpbuf);
 579         check_sound_device(lc);
 580         lc->sound_conf.latency=0;
 581
 582         linphone_core_enable_echo_cancellation(lc,
 583             lp_config_get_int(lc->config,"sound","echocancelation",0) |
 584             lp_config_get_int(lc->config,"sound","echocancellation",0)
 585                 );
 586
 587         linphone_core_enable_echo_limiter(lc,
 588                 lp_config_get_int(lc->config,"sound","echolimiter",0));
 589         linphone_core_enable_agc(lc,
 590                 lp_config_get_int(lc->config,"sound","agc",0));
 591
 592         gain=lp_config_get_float(lc->config,"sound","soft_play_lev",0);
 593                 linphone_core_set_soft_play_level(lc,gain);
 594 }
 595
 596 static void sip_config_read(LinphoneCore *lc)
 597 {
 598         char *contact;
 599         const char *tmpstr;
 600         int port;
 601         int i,tmp;
 602         int ipv6;
 603         port=lp_config_get_int(lc->config,"sip","use_info",0);
 604         linphone_core_set_use_info_for_dtmf(lc,port);
 605
 606         port=lp_config_get_int(lc->config,"sip","use_rfc2833",0);
 607         linphone_core_set_use_rfc2833_for_dtmf(lc,port);
 608
 609         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
 610         if (ipv6==-1){
 611                 ipv6=0;
 612                 if (host_has_ipv6_network()){
 613                         lc->vtable.display_message(lc,_("Your machine appears to be connected to an IPv6 network. By default linphone always uses IPv4. Please update your configuration if you want to use IPv6"));
 614                 }
 615         }
 616         linphone_core_enable_ipv6(lc,ipv6);
 617         port=lp_config_get_int(lc->config,"sip","sip_port",5060);
 618         linphone_core_set_sip_port(lc,port);
 619
 620         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
 621         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
 622                 const char *hostname=NULL;
 623                 const char *username=NULL;
 624 #ifdef HAVE_GETENV
 625                 hostname=getenv("HOST");
 626                 username=getenv("USER");
 627                 if (hostname==NULL) hostname=getenv("HOSTNAME");
 628 #endif /*HAVE_GETENV*/
 629                 if (hostname==NULL)
 630                         hostname="unknown-host";
 631                 if (username==NULL){
 632                         username="toto";
 633                 }
 634                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
 635                 linphone_core_set_primary_contact(lc,contact);
 636                 ms_free(contact);
 637         }
 638
 639         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
 640         linphone_core_set_guess_hostname(lc,tmp);
 641
 642
 643         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",15);
 644         linphone_core_set_inc_timeout(lc,tmp);
 645
 646         /* get proxies config */
 647         for(i=0;; i++){
 648                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 649                 if (cfg!=NULL){
 650                         linphone_core_add_proxy_config(lc,cfg);
 651                 }else{
 652                         break;
 653                 }
 654         }
 655         /* get the default proxy */
 656         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 657         linphone_core_set_default_proxy_index(lc,tmp);
 658
 659         /* read authentication information */
 660         for(i=0;; i++){
 661                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 662                 if (ai!=NULL){
 663                         linphone_core_add_auth_info(lc,ai);
 664                 }else{
 665                         break;
 666                 }
 667         }
 668
 669         /*for tuning or test*/
 670         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 671         lc->sip_conf.only_one_codec=lp_config_get_int(lc->config,"sip","only_one_codec",0);
 672         lc->sip_conf.register_only_when_network_is_up=
 673                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 674         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 675 }
 676
 677 static void rtp_config_read(LinphoneCore *lc)
 678 {
 679         int port;
 680         int jitt_comp;
 681         int nortp_timeout;
 682         port=lp_config_get_int(lc->config,"rtp","audio_rtp_port",7078);
 683         linphone_core_set_audio_port(lc,port);
 684
 685         port=lp_config_get_int(lc->config,"rtp","video_rtp_port",9078);
 686         if (port==0) port=9078;
 687         linphone_core_set_video_port(lc,port);
 688
 689         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 690         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 691         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 692         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 693         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 694 }
 695
 696 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, const char *recv_fmtp){
 697         PayloadType *candidate=NULL;
 698         int i;
 699         PayloadType *it;
 700         for(i=0;i<127;++i){
 701                 it=rtp_profile_get_payload(prof,i);
 702                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 703                         && (clock_rate==it->clock_rate || clock_rate<=0) ){
 704                         if ( (recv_fmtp && it->recv_fmtp && strcasecmp(recv_fmtp,it->recv_fmtp)==0) ||
 705                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 706                                 /*exact match*/
 707                                 return it;
 708                         }else candidate=it;
 709                 }
 710         }
 711         return candidate;
 712 }
 713
 714 static bool_t get_codec(LpConfig *config, char* type, int index, PayloadType **ret){
 715         char codeckey[50];
 716         const char *mime,*fmtp;
 717         int rate,enabled;
 718         PayloadType *pt;
 719
 720         *ret=NULL;
 721         snprintf(codeckey,50,"%s_%i",type,index);
 722         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 723         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 724
 725         rate=lp_config_get_int(config,codeckey,"rate",8000);
 726         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 727         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 728         pt=find_payload(&av_profile,mime,rate,fmtp);
 729         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 730         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 731         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 732                         mime,rate,fmtp ? fmtp : "");
 733         *ret=pt;
 734         return TRUE;
 735 }
 736
 737 static const char *codec_pref_order[]={
 738         "speex",
 739         "gsm",
 740         "pcmu",
 741         "pcma",
 742         "H264",
 743         "MP4V-ES",
 744         "theora",
 745         "H263-1998",
 746         "H263",
 747         NULL,
 748 };
 749
 750 static int find_codec_rank(const char *mime){
 751         int i;
 752         for(i=0;codec_pref_order[i]!=NULL;++i){
 753                 if (strcasecmp(codec_pref_order[i],mime)==0)
 754                         break;
 755         }
 756         return i;
 757 }
 758
 759 static int codec_compare(const PayloadType *a, const PayloadType *b){
 760         int ra,rb;
 761         ra=find_codec_rank(a->mime_type);
 762         rb=find_codec_rank(b->mime_type);
 763         if (ra>rb) return 1;
 764         if (ra<rb) return -1;
 765         return 0;
 766 }
 767
 768 static MSList *add_missing_codecs(SalStreamType mtype, MSList *l){
 769         int i;
 770         for(i=0;i<127;++i){
 771                 PayloadType *pt=rtp_profile_get_payload(&av_profile,i);
 772                 if (pt){
 773                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 774                                 pt=NULL;
 775                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 776                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 777                                 pt=NULL;
 778                         }
 779                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 780                                 if (ms_list_find(l,pt)==NULL){
 781                                         payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 782                                         ms_message("Adding new codec %s/%i with fmtp %s",
 783                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 784                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 785                                 }
 786                         }
 787                 }
 788         }
 789         return l;
 790 }
 791
 792 static void codecs_config_read(LinphoneCore *lc)
 793 {
 794         int i;
 795         PayloadType *pt;
 796         MSList *audio_codecs=NULL;
 797         MSList *video_codecs=NULL;
 798         for (i=0;get_codec(lc->config,"audio_codec",i,&pt);i++){
 799                 if (pt){
 800                         if (!ms_filter_codec_supported(pt->mime_type)){
 801                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 802                         }else audio_codecs=ms_list_append(audio_codecs,pt);
 803                 }
 804         }
 805         audio_codecs=add_missing_codecs(SalAudio,audio_codecs);
 806         for (i=0;get_codec(lc->config,"video_codec",i,&pt);i++){
 807                 if (pt){
 808                         if (!ms_filter_codec_supported(pt->mime_type)){
 809                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 810                         }else video_codecs=ms_list_append(video_codecs,(void *)pt);
 811                 }
 812         }
 813         video_codecs=add_missing_codecs(SalVideo,video_codecs);
 814         linphone_core_set_audio_codecs(lc,audio_codecs);
 815         linphone_core_set_video_codecs(lc,video_codecs);
 816         linphone_core_update_allocated_audio_bandwidth(lc);
 817 }
 818
 819 static void video_config_read(LinphoneCore *lc){
 820         int capture, display, self_view;
 821         int enabled;
 822         const char *str;
 823         int ndev;
 824         const char **devices;
 825         const MSList *elem;
 826         int i;
 827
 828         /* retrieve all video devices */
 829         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 830         ndev=ms_list_size(elem);
 831         devices=ms_malloc((ndev+1)*sizeof(const char *));
 832         for (i=0;elem!=NULL;elem=elem->next,i++){
 833                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 834         }
 835         devices[ndev]=NULL;
 836         lc->video_conf.cams=devices;
 837
 838         str=lp_config_get_string(lc->config,"video","device",NULL);
 839         if (str && str[0]==0) str=NULL;
 840         linphone_core_set_video_device(lc,str);
 841
 842         linphone_core_set_preferred_video_size_by_name(lc,
 843                 lp_config_get_string(lc->config,"video","size","cif"));
 844
 845         enabled=lp_config_get_int(lc->config,"video","enabled",1);
 846         capture=lp_config_get_int(lc->config,"video","capture",enabled);
 847         display=lp_config_get_int(lc->config,"video","display",enabled);
 848         self_view=lp_config_get_int(lc->config,"video","self_view",enabled);
 849 #ifdef VIDEO_ENABLED
 850         linphone_core_enable_video(lc,capture,display);
 851         linphone_core_enable_self_view(lc,self_view);
 852 #endif
 853 }
 854
 855 static void ui_config_read(LinphoneCore *lc)
 856 {
 857         LinphoneFriend *lf;
 858         int i;
 859         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 860                 linphone_core_add_friend(lc,lf);
 861         }
 862         call_logs_read_from_config_file(lc);
 863 }
 864
 865 /*
 866 static void autoreplier_config_init(LinphoneCore *lc)
 867 {
 868         autoreplier_config_t *config=&lc->autoreplier_conf;
 869         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 870         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 871         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 872         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 873         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 874         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 875 }
 876 */
 877
 878 /**
 879  * Sets maximum available download bandwidth
 880  *
 881  * @ingroup media_parameters
 882  *
 883  * This is IP bandwidth, in kbit/s.
 884  * This information is used signaled to other parties during
 885  * calls (within SDP messages) so that the remote end can have
 886  * sufficient knowledge to properly configure its audio & video
 887  * codec output bitrate to not overflow available bandwidth.
 888  *
 889  * @param lc the LinphoneCore object
 890  * @param bw the bandwidth in kbits/s, 0 for infinite
 891  */
 892 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
 893         lc->net_conf.download_bw=bw;
 894         if (bw==0){ /*infinite*/
 895                 lc->dw_audio_bw=-1;
 896                 lc->dw_video_bw=-1;
 897         }else {
 898                 lc->dw_audio_bw=MIN(lc->audio_bw,bw);
 899                 lc->dw_video_bw=MAX(bw-lc->dw_audio_bw-10,0);/*-10: security margin*/
 900         }
 901 }
 902
 903 /**
 904  * Sets maximum available upload bandwidth
 905  *
 906  * @ingroup media_parameters
 907  *
 908  * This is IP bandwidth, in kbit/s.
 909  * This information is used by liblinphone together with remote
 910  * side available bandwidth signaled in SDP messages to properly
 911  * configure audio & video codec's output bitrate.
 912  *
 913  * @param lc the LinphoneCore object
 914  * @param bw the bandwidth in kbits/s, 0 for infinite
 915  */
 916 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
 917         lc->net_conf.upload_bw=bw;
 918         if (bw==0){ /*infinite*/
 919                 lc->up_audio_bw=-1;
 920                 lc->up_video_bw=-1;
 921         }else{
 922                 lc->up_audio_bw=MIN(lc->audio_bw,bw);
 923                 lc->up_video_bw=MAX(bw-lc->up_audio_bw-10,0);/*-10: security margin*/
 924         }
 925 }
 926
 927 /**
 928  * Retrieve the maximum available download bandwidth.
 929  *
 930  * @ingroup media_parameters
 931  *
 932  * This value was set by linphone_core_set_download_bandwidth().
 933  *
 934 **/
 935 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
 936         return lc->net_conf.download_bw;
 937 }
 938
 939 /**
 940  * Retrieve the maximum available upload bandwidth.
 941  *
 942  * @ingroup media_parameters
 943  *
 944  * This value was set by linphone_core_set_upload_bandwidth().
 945  *
 946 **/
 947 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
 948         return lc->net_conf.upload_bw;
 949 }
 950 /**
 951  * set audio packetization time linphone expect to received from peer
 952  */
 953 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
 954         lc->net_conf.down_ptime=ptime;
 955 }
 956
 957 int  linphone_core_get_download_ptime(LinphoneCore *lc) {
 958         return lc->net_conf.down_ptime;
 959 }
 960
 961
 962 /**
 963  * Returns liblinphone's version as a string.
 964  *
 965  * @ingroup misc
 966  *
 967 **/
 968 const char * linphone_core_get_version(void){
 969         return liblinphone_version;
 970 }
 971
 972
 973 static MSList *linphone_payload_types=NULL;
 974
 975 static void linphone_core_assign_payload_type(PayloadType *const_pt, int number, const char *recv_fmtp){
 976         PayloadType *pt;
 977         pt=payload_type_clone(const_pt);
 978         payload_type_set_number(pt,number);
 979         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
 980         rtp_profile_set_payload(&av_profile,number,pt);
 981         linphone_payload_types=ms_list_append(linphone_payload_types,pt);
 982 }
 983
 984 static void linphone_core_free_payload_types(void){
 985         ms_list_for_each(linphone_payload_types,(void (*)(void*))payload_type_destroy);
 986         ms_list_free(linphone_payload_types);
 987         linphone_payload_types=NULL;
 988 }
 989
 990 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
 991     const char *factory_config_path, void * userdata)
 992 {
 993         memset (lc, 0, sizeof (LinphoneCore));
 994         lc->data=userdata;
 995
 996         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
 997
 998         gstate_initialize(lc);
 999         gstate_new_state(lc, GSTATE_POWER_STARTUP, NULL);
1000
1001         ortp_init();
1002         linphone_core_assign_payload_type(&payload_type_pcmu8000,0,NULL);
1003         linphone_core_assign_payload_type(&payload_type_gsm,3,NULL);
1004         linphone_core_assign_payload_type(&payload_type_pcma8000,8,NULL);
1005         linphone_core_assign_payload_type(&payload_type_lpc1015,115,NULL);
1006         linphone_core_assign_payload_type(&payload_type_speex_nb,110,"vbr=on");
1007         linphone_core_assign_payload_type(&payload_type_speex_wb,111,"vbr=on");
1008         linphone_core_assign_payload_type(&payload_type_speex_uwb,112,"vbr=on");
1009         linphone_core_assign_payload_type(&payload_type_telephone_event,101,"0-11");
1010         linphone_core_assign_payload_type(&payload_type_ilbc,113,"mode=30");
1011
1012 #ifdef ENABLE_NONSTANDARD_GSM
1013         {
1014                 PayloadType *pt;
1015                 pt=payload_type_clone(&payload_type_gsm);
1016                 pt->clock_rate=11025;
1017                 rtp_profile_set_payload(&av_profile,114,pt);
1018                 linphone_payload_types=ms_list_append(linphone_payload_types,pt);
1019                 pt=payload_type_clone(&payload_type_gsm);
1020                 pt->clock_rate=22050;
1021                 rtp_profile_set_payload(&av_profile,115,pt);
1022                 linphone_payload_types=ms_list_append(linphone_payload_types,pt);
1023         }
1024 #endif
1025
1026 #ifdef VIDEO_ENABLED
1027         linphone_core_assign_payload_type(&payload_type_h263,34,NULL);
1028         linphone_core_assign_payload_type(&payload_type_theora,97,NULL);
1029         linphone_core_assign_payload_type(&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1030         linphone_core_assign_payload_type(&payload_type_mp4v,99,"profile-level-id=3");
1031         linphone_core_assign_payload_type(&payload_type_x_snow,100,NULL);
1032         linphone_core_assign_payload_type(&payload_type_h264,102,NULL);
1033         linphone_core_assign_payload_type(&payload_type_h264,103,"packetization-mode=1");
1034 #endif
1035
1036         ms_init();
1037
1038         lc->config=lp_config_new(config_path);
1039         if (factory_config_path)
1040                 lp_config_read_file(lc->config,factory_config_path);
1041
1042         lc->sal=sal_init();
1043         sal_set_user_pointer(lc->sal,lc);
1044         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1045         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
1046                 sal_use_session_timers(lc->sal,200);
1047         }
1048         sip_setup_register_all();
1049         sound_config_read(lc);
1050         net_config_read(lc);
1051         rtp_config_read(lc);
1052         codecs_config_read(lc);
1053         sip_config_read(lc); /* this will start eXosip*/
1054         video_config_read(lc);
1055         //autoreplier_config_init(&lc->autoreplier_conf);
1056         lc->prev_mode=LINPHONE_STATUS_ONLINE;
1057         lc->presence_mode=LINPHONE_STATUS_ONLINE;
1058         lc->max_call_logs=15;
1059         ui_config_read(lc);
1060         lc->vtable.display_status(lc,_("Ready"));
1061         gstate_new_state(lc, GSTATE_POWER_ON, NULL);
1062         lc->auto_net_state_mon=TRUE;
1063
1064     lc->ready=TRUE;
1065 }
1066
1067 /**
1068  * Instanciates a LinphoneCore object.
1069  * @ingroup initializing
1070  *
1071  * The LinphoneCore object is the primary handle for doing all phone actions.
1072  * It should be unique within your application.
1073  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1074  * @param config_path a path to a config file. If it does not exists it will be created.
1075  *        The config file is used to store all user settings, call logs, friends, proxies...
1076  * @param factory_config_path a path to a read-only config file that can be used to
1077  *        to store hard-coded preference such as proxy settings or internal preferences.
1078  *        The settings in this factory file always override the one in the normal config file.
1079  *        It is OPTIONAL, use NULL if unneeded.
1080  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1081  *        callbacks) using linphone_core_get_user_data().
1082  *
1083 **/
1084 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1085                                                 const char *config_path, const char *factory_config_path, void * userdata)
1086 {
1087         LinphoneCore *core=ms_new(LinphoneCore,1);
1088         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1089         return core;
1090 }
1091
1092 /**
1093  * Returns the list of available audio codecs.
1094  *
1095  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1096  * structure holding the codec information.
1097  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1098  * (such as the order of codecs).
1099 **/
1100 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1101 {
1102         return lc->codecs_conf.audio_codecs;
1103 }
1104
1105 /**
1106  * Returns the list of available video codecs.
1107  *
1108  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1109  * structure holding the codec information.
1110  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1111  * (such as the order of codecs).
1112 **/
1113 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1114 {
1115         return lc->codecs_conf.video_codecs;
1116 }
1117
1118 /**
1119  * Sets the local "from" identity.
1120  *
1121  * @ingroup proxies
1122  * This data is used in absence of any proxy configuration or when no
1123  * default proxy configuration is set. See LinphoneProxyConfig
1124 **/
1125 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1126 {
1127         LinphoneAddress *ctt;
1128
1129         if ((ctt=linphone_address_new(contact))==0) {
1130                 ms_error("Bad contact url: %s",contact);
1131                 return -1;
1132         }
1133         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1134         lc->sip_conf.contact=ms_strdup(contact);
1135         if (lc->sip_conf.guessed_contact!=NULL){
1136                 ms_free(lc->sip_conf.guessed_contact);
1137                 lc->sip_conf.guessed_contact=NULL;
1138         }
1139         linphone_address_destroy(ctt);
1140         return 0;
1141 }
1142
1143
1144 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1145 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1146         if (linphone_core_get_firewall_policy(lc)==LINPHONE_POLICY_USE_NAT_ADDRESS){
1147                 strncpy(result,linphone_core_get_nat_address(lc),LINPHONE_IPADDR_SIZE);
1148                 return;
1149         }
1150         if (dest==NULL) dest="87.98.157.38"; /*a public IP address*/
1151         if (linphone_core_get_local_ip_for(dest,result)==0)
1152                 return;
1153         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1154         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1155 }
1156
1157 static void update_primary_contact(LinphoneCore *lc){
1158         char *guessed=NULL;
1159         char tmp[LINPHONE_IPADDR_SIZE];
1160
1161         LinphoneAddress *url;
1162         if (lc->sip_conf.guessed_contact!=NULL){
1163                 ms_free(lc->sip_conf.guessed_contact);
1164                 lc->sip_conf.guessed_contact=NULL;
1165         }
1166         url=linphone_address_new(lc->sip_conf.contact);
1167         if (!url){
1168                 ms_error("Could not parse identity contact !");
1169                 url=linphone_address_new("sip:unknown@unkwownhost");
1170         }
1171         linphone_core_get_local_ip(lc, NULL, tmp);
1172         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1173                 ms_warning("Local loopback network only !");
1174                 lc->sip_conf.loopback_only=TRUE;
1175         }else lc->sip_conf.loopback_only=FALSE;
1176         linphone_address_set_domain(url,tmp);
1177         linphone_address_set_port_int(url,lc->sip_conf.sip_port);
1178         guessed=linphone_address_as_string(url);
1179         lc->sip_conf.guessed_contact=guessed;
1180         linphone_address_destroy(url);
1181 }
1182
1183 /**
1184  * Returns the default identity when no proxy configuration is used.
1185  *
1186  * @ingroup proxies
1187 **/
1188 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1189         char *identity;
1190
1191         if (lc->sip_conf.guess_hostname){
1192                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1193                         update_primary_contact(lc);
1194                 }
1195                 identity=lc->sip_conf.guessed_contact;
1196         }else{
1197                 identity=lc->sip_conf.contact;
1198         }
1199         return identity;
1200 }
1201
1202 /**
1203  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1204  *
1205  * @ingroup proxies
1206 **/
1207 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1208         lc->sip_conf.guess_hostname=val;
1209 }
1210
1211 /**
1212  * Returns TRUE if hostname part of primary contact is guessed automatically.
1213  *
1214  * @ingroup proxies
1215 **/
1216 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1217         return lc->sip_conf.guess_hostname;
1218 }
1219
1220 /**
1221  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1222  * instead of const char*
1223  *
1224  * @ingroup proxies
1225 **/
1226 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1227         return linphone_address_new(linphone_core_get_primary_contact(lc));
1228 }
1229
1230 /**
1231  * Sets the list of audio codecs.
1232  *
1233  * @ingroup media_parameters
1234  * The list is taken by the LinphoneCore thus the application should not free it.
1235  * This list is made of struct PayloadType describing the codec parameters.
1236 **/
1237 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1238 {
1239         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1240         lc->codecs_conf.audio_codecs=codecs;
1241         return 0;
1242 }
1243
1244 /**
1245  * Sets the list of video codecs.
1246  *
1247  * @ingroup media_parameters
1248  * The list is taken by the LinphoneCore thus the application should not free it.
1249  * This list is made of struct PayloadType describing the codec parameters.
1250 **/
1251 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1252 {
1253         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1254         lc->codecs_conf.video_codecs=codecs;
1255         return 0;
1256 }
1257
1258 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1259 {
1260         return lc->friends;
1261 }
1262
1263 /**
1264  * Returns the nominal jitter buffer size in milliseconds.
1265  *
1266  * @ingroup media_parameters
1267 **/
1268 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1269 {
1270         return lc->rtp_conf.audio_jitt_comp;
1271 }
1272
1273 /**
1274  * Returns the UDP port used for audio streaming.
1275  *
1276  * @ingroup network_parameters
1277 **/
1278 int linphone_core_get_audio_port(const LinphoneCore *lc)
1279 {
1280         return lc->rtp_conf.audio_rtp_port;
1281 }
1282
1283 /**
1284  * Returns the UDP port used for video streaming.
1285  *
1286  * @ingroup network_parameters
1287 **/
1288 int linphone_core_get_video_port(const LinphoneCore *lc){
1289         return lc->rtp_conf.video_rtp_port;
1290 }
1291
1292
1293 /**
1294  * Returns the value in seconds of the no-rtp timeout.
1295  *
1296  * @ingroup media_parameters
1297  * When no RTP or RTCP packets have been received for a while
1298  * LinphoneCore will consider the call is broken (remote end crashed or
1299  * disconnected from the network), and thus will terminate the call.
1300  * The no-rtp timeout is the duration above which the call is considered broken.
1301 **/
1302 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1303         return lc->rtp_conf.nortp_timeout;
1304 }
1305
1306 /**
1307  * Sets the nominal audio jitter buffer size in milliseconds.
1308  *
1309  * @ingroup media_parameters
1310 **/
1311 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1312 {
1313         lc->rtp_conf.audio_jitt_comp=value;
1314 }
1315
1316 /**
1317  * Sets the UDP port used for audio streaming.
1318  *
1319  * @ingroup network_parameters
1320 **/
1321 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1322 {
1323         lc->rtp_conf.audio_rtp_port=port;
1324 }
1325
1326 /**
1327  * Sets the UDP port used for video streaming.
1328  *
1329  * @ingroup network_parameters
1330 **/
1331 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1332         lc->rtp_conf.video_rtp_port=port;
1333 }
1334
1335 /**
1336  * Sets the no-rtp timeout value in seconds.
1337  *
1338  * @ingroup media_parameters
1339  * See linphone_core_get_nortp_timeout() for details.
1340 **/
1341 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1342         lc->rtp_conf.nortp_timeout=nortp_timeout;
1343 }
1344
1345 /**
1346  * Indicates whether SIP INFO is used for sending digits.
1347  *
1348  * @ingroup media_parameters
1349 **/
1350 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1351 {
1352         return lc->sip_conf.use_info;
1353 }
1354
1355 /**
1356  * Sets whether SIP INFO is to be used for sending digits.
1357  *
1358  * @ingroup media_parameters
1359 **/
1360 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1361 {
1362         lc->sip_conf.use_info=use_info;
1363 }
1364
1365 /**
1366  * Indicates whether RFC2833 is used for sending digits.
1367  *
1368  * @ingroup media_parameters
1369 **/
1370 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1371 {
1372         return lc->sip_conf.use_rfc2833;
1373 }
1374
1375 /**
1376  * Sets whether RFC2833 is to be used for sending digits.
1377  *
1378  * @ingroup media_parameters
1379 **/
1380 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1381 {
1382         lc->sip_conf.use_rfc2833=use_rfc2833;
1383 }
1384
1385 /**
1386  * Returns the UDP port used by SIP.
1387  *
1388  * @ingroup network_parameters
1389 **/
1390 int linphone_core_get_sip_port(LinphoneCore *lc)
1391 {
1392         return lc->sip_conf.sip_port;
1393 }
1394
1395 static char _ua_name[64]="Linphone";
1396 static char _ua_version[64]=LINPHONE_VERSION;
1397
1398 #ifdef HAVE_EXOSIP_GET_VERSION
1399 extern const char *eXosip_get_version();
1400 #endif
1401
1402 static void apply_user_agent(LinphoneCore *lc){
1403         char ua_string[256];
1404         snprintf(ua_string,sizeof(ua_string),"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1405 #ifdef HAVE_EXOSIP_GET_VERSION
1406                  eXosip_get_version()
1407 #else
1408                  "unknown"
1409 #endif
1410         );
1411         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1412 }
1413
1414 /**
1415  * Sets the user agent string used in SIP messages.
1416  *
1417  * @ingroup misc
1418 **/
1419 void linphone_core_set_user_agent(const char *name, const char *ver){
1420         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1421         strncpy(_ua_version,ver,sizeof(_ua_version));
1422 }
1423
1424 /**
1425  * Sets the UDP port to be used by SIP.
1426  *
1427  * @ingroup network_parameters
1428 **/
1429 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1430 {
1431         const char *anyaddr;
1432         int err=0;
1433         if (port==lc->sip_conf.sip_port) return;
1434         lc->sip_conf.sip_port=port;
1435
1436         if (lc->sal==NULL) return;
1437
1438         if (lc->sip_conf.ipv6_enabled)
1439                 anyaddr="::0";
1440         else
1441                 anyaddr="0.0.0.0";
1442         err=sal_listen_port (lc->sal,anyaddr,port, SalTransportDatagram,FALSE);
1443         if (err<0){
1444                 char *msg=ortp_strdup_printf("UDP port %i seems already in use ! Cannot initialize.",port);
1445                 ms_warning(msg);
1446                 lc->vtable.display_warning(lc,msg);
1447                 ms_free(msg);
1448                 return;
1449         }
1450         apply_user_agent(lc);
1451 }
1452
1453 /**
1454  * Returns TRUE if IPv6 is enabled.
1455  *
1456  * @ingroup network_parameters
1457  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1458 **/
1459 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1460         return lc->sip_conf.ipv6_enabled;
1461 }
1462
1463 /**
1464  * Turns IPv6 support on or off.
1465  *
1466  * @ingroup network_parameters
1467  *
1468  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1469  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1470  * By default IPv6 support is off.
1471 **/
1472 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1473         if (lc->sip_conf.ipv6_enabled!=val){
1474                 lc->sip_conf.ipv6_enabled=val;
1475                 if (lc->sal){
1476                         /* we need to restart eXosip */
1477                         linphone_core_set_sip_port(lc, lc->sip_conf.sip_port);
1478                 }
1479         }
1480 }
1481
1482 static void display_bandwidth(RtpSession *as, RtpSession *vs){
1483         ms_message("bandwidth usage: audio=[d=%.1f,u=%.1f] video=[d=%.1f,u=%.1f] kbit/sec",
1484         (as!=NULL) ? (rtp_session_compute_recv_bandwidth(as)*1e-3) : 0,
1485         (as!=NULL) ? (rtp_session_compute_send_bandwidth(as)*1e-3) : 0,
1486         (vs!=NULL) ? (rtp_session_compute_recv_bandwidth(vs)*1e-3) : 0,
1487         (vs!=NULL) ? (rtp_session_compute_send_bandwidth(vs)*1e-3) : 0);
1488 }
1489
1490 static void linphone_core_disconnected(LinphoneCore *lc){
1491         lc->vtable.display_warning(lc,_("Remote end seems to have disconnected, the call is going to be closed."));
1492         linphone_core_terminate_call(lc,NULL);
1493 }
1494
1495 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1496         static time_t last_check=0;
1497         static bool_t last_status=FALSE;
1498         char result[LINPHONE_IPADDR_SIZE];
1499         bool_t new_status;
1500
1501         /* only do the network up checking every five seconds */
1502         if (last_check==0 || (curtime-last_check)>=5){
1503                 sal_get_default_local_ip(lc->sal,
1504                     lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,
1505                     result,LINPHONE_IPADDR_SIZE);
1506                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1507                         new_status=TRUE;
1508                 }else new_status=FALSE;
1509                 last_check=curtime;
1510                 if (new_status!=last_status) {
1511                         set_network_reachable(lc,new_status);
1512                         last_status=new_status;
1513                 }
1514         }
1515 }
1516
1517 static void proxy_update(LinphoneCore *lc){
1518         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1519 }
1520
1521 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1522         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1523         if (lf!=NULL){
1524                 lf->info=info;
1525                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1526                 if (lc->vtable.buddy_info_updated)
1527                         lc->vtable.buddy_info_updated(lc,lf);
1528         }else{
1529                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1530         }
1531 }
1532
1533 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1534         MSList *elem;
1535         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1536         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1537                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1538                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1539                         if (req->results!=NULL){
1540                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1541                                 ms_list_free(req->results);
1542                                 req->results=NULL;
1543                                 assign_buddy_info(lc,i);
1544                         }
1545                         sip_setup_context_buddy_lookup_free(ctx,req);
1546                         elem->data=NULL;
1547                 }
1548         }
1549         /*purge completed requests */
1550         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1551                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1552         }
1553 }
1554
1555 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1556         const MSList *elem;
1557         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1558         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1559                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1560                 if (lf->info==NULL){
1561                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1562                                 if (linphone_address_get_username(lf->uri)!=NULL){
1563                                         BuddyLookupRequest *req;
1564                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1565                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1566                                         buddy_lookup_request_set_key(req,tmp);
1567                                         buddy_lookup_request_set_max_results(req,1);
1568                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1569                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
1570                                         ms_free(tmp);
1571                                 }
1572                         }
1573                 }
1574         }
1575 }
1576
1577 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
1578         LinphoneProxyConfig *cfg=NULL;
1579         linphone_core_get_default_proxy(lc,&cfg);
1580         if (cfg){
1581                 if (lc->bl_refresh){
1582                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1583                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
1584                                 linphone_core_grab_buddy_infos(lc,cfg);
1585                                 lc->bl_refresh=FALSE;
1586                         }
1587                 }
1588                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
1589         }
1590 }
1591
1592 /**
1593  * Main loop function. It is crucial that your application call it periodically.
1594  *
1595  * @ingroup initializing
1596  * linphone_core_iterate() performs various backgrounds tasks:
1597  * - receiving of SIP messages
1598  * - handles timers and timeout
1599  * - performs registration to proxies
1600  * - authentication retries
1601  * The application MUST call this function from periodically, in its main loop.
1602  * Be careful that this function must be call from the same thread as
1603  * other liblinphone methods. In not the case make sure all liblinphone calls are
1604  * serialized with a mutex.
1605 **/
1606 void linphone_core_iterate(LinphoneCore *lc){
1607         int disconnect_timeout = linphone_core_get_nortp_timeout(lc);
1608         time_t curtime=time(NULL);
1609         int elapsed;
1610         bool_t one_second_elapsed=FALSE;
1611         bool_t disconnected=FALSE;
1612
1613         if (curtime-lc->prevtime>=1){
1614                 lc->prevtime=curtime;
1615                 one_second_elapsed=TRUE;
1616         }
1617
1618         if (lc->preview_finished){
1619                 lc->preview_finished=0;
1620                 ring_stop(lc->ringstream);
1621                 lc->ringstream=NULL;
1622                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
1623         }
1624
1625         sal_iterate(lc->sal);
1626         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
1627
1628         proxy_update(lc);
1629
1630         if (lc->call!=NULL){
1631                 LinphoneCall *call=lc->call;
1632                 if (call->state==LCStatePreEstablishing && (curtime-call->start_time>=2)){
1633                         /*start the call even if the OPTIONS reply did not arrive*/
1634                         linphone_core_start_invite(lc,call,NULL);
1635                 }
1636                 if (call->dir==LinphoneCallIncoming && call->state==LCStateRinging){
1637                         elapsed=curtime-call->start_time;
1638                         ms_message("incoming call ringing for %i seconds",elapsed);
1639                         if (elapsed>lc->sip_conf.inc_timeout){
1640                                 linphone_core_terminate_call(lc,NULL);
1641                         }
1642                 }else if (call->state==LCStateAVRunning){
1643                         if (one_second_elapsed){
1644                                 RtpSession *as=NULL,*vs=NULL;
1645                                 lc->prevtime=curtime;
1646                                 if (lc->audiostream!=NULL)
1647                                         as=lc->audiostream->session;
1648                                 if (lc->videostream!=NULL)
1649                                         vs=lc->videostream->session;
1650                                 display_bandwidth(as,vs);
1651                         }
1652 #ifdef VIDEO_ENABLED
1653                         if (lc->videostream!=NULL)
1654                                 video_stream_iterate(lc->videostream);
1655 #endif
1656                         if (lc->audiostream!=NULL && disconnect_timeout>0)
1657                                 disconnected=!audio_stream_alive(lc->audiostream,disconnect_timeout);
1658                 }
1659         }
1660         if (linphone_core_video_preview_enabled(lc)){
1661                 if (lc->previewstream==NULL)
1662                         toggle_video_preview(lc,TRUE);
1663 #ifdef VIDEO_ENABLED
1664                 else video_stream_iterate(lc->previewstream);
1665 #endif
1666         }else{
1667                 if (lc->previewstream!=NULL)
1668                         toggle_video_preview(lc,FALSE);
1669         }
1670         if (disconnected)
1671                 linphone_core_disconnected(lc);
1672
1673         linphone_core_do_plugin_tasks(lc);
1674
1675         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
1676                 lp_config_sync(lc->config);
1677         }
1678 }
1679
1680
1681 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
1682         enum_lookup_res_t *enumres=NULL;
1683         char *enum_domain=NULL;
1684         LinphoneProxyConfig *proxy=lc->default_proxy;;
1685         char *tmpurl;
1686         LinphoneAddress *uri;
1687
1688         if (is_enum(url,&enum_domain)){
1689                 lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
1690                 if (enum_lookup(enum_domain,&enumres)<0){
1691                         lc->vtable.display_status(lc,_("Could not resolve this number."));
1692                         ms_free(enum_domain);
1693                         return NULL;
1694                 }
1695                 ms_free(enum_domain);
1696                 tmpurl=enumres->sip_address[0];
1697                 uri=linphone_address_new(tmpurl);
1698                 enum_lookup_res_free(enumres);
1699                 return uri;
1700         }
1701         /* check if we have a "sip:" */
1702         if (strstr(url,"sip:")==NULL){
1703                 /* this doesn't look like a true sip uri */
1704                 if (strchr(url,'@')!=NULL){
1705                         /* seems like sip: is missing !*/
1706                         tmpurl=ms_strdup_printf("sip:%s",url);
1707                         uri=linphone_address_new(tmpurl);
1708                         ms_free(tmpurl);
1709                         if (uri){
1710                                 return uri;
1711                         }
1712                 }
1713
1714                 if (proxy!=NULL){
1715                         /* append the proxy domain suffix */
1716                         const char *identity=linphone_proxy_config_get_identity(proxy);
1717                         char normalized_username[128];
1718                         uri=linphone_address_new(identity);
1719                         if (uri==NULL){
1720                                 return NULL;
1721                         }
1722                         linphone_address_set_display_name(uri,NULL);
1723                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
1724                                                                 sizeof(normalized_username));
1725                         linphone_address_set_username(uri,normalized_username);
1726                         return uri;
1727                 }else return NULL;
1728         }
1729         uri=linphone_address_new(url);
1730         if (uri!=NULL){
1731                 return uri;
1732         }
1733         /* else we could not do anything with url given by user, so display an error */
1734         if (lc->vtable.display_warning!=NULL){
1735                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
1736         }
1737         return NULL;
1738 }
1739
1740 /**
1741  * Returns the default identity SIP address.
1742  *
1743  * @ingroup proxiesb
1744  * This is an helper function:
1745  *
1746  * If no default proxy is set, this will return the primary contact (
1747  * see linphone_core_get_primary_contact() ). If a default proxy is set
1748  * it returns the registered identity on the proxy.
1749 **/
1750 const char * linphone_core_get_identity(LinphoneCore *lc){
1751         LinphoneProxyConfig *proxy=NULL;
1752         const char *from;
1753         linphone_core_get_default_proxy(lc,&proxy);
1754         if (proxy!=NULL) {
1755                 from=linphone_proxy_config_get_identity(proxy);
1756         }else from=linphone_core_get_primary_contact(lc);
1757         return from;
1758 }
1759
1760 const char * linphone_core_get_route(LinphoneCore *lc){
1761         LinphoneProxyConfig *proxy=NULL;
1762         const char *route=NULL;
1763         linphone_core_get_default_proxy(lc,&proxy);
1764         if (proxy!=NULL) {
1765                 route=linphone_proxy_config_get_route(proxy);
1766         }
1767         return route;
1768 }
1769
1770 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
1771         const MSList *elem;
1772         LinphoneProxyConfig *found_cfg=NULL;
1773         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
1774                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
1775                 const char *domain=linphone_proxy_config_get_domain(cfg);
1776                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
1777                         found_cfg=cfg;
1778                         break;
1779                 }
1780         }
1781         return found_cfg;
1782 }
1783
1784 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
1785         LinphoneAddress *ctt;
1786         const char *localip=call->localip;
1787
1788         /* first use user's supplied ip address if asked*/
1789         if (linphone_core_get_firewall_policy(lc)==LINPHONE_POLICY_USE_NAT_ADDRESS){
1790                 ctt=linphone_core_get_primary_contact_parsed(lc);
1791                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
1792                         linphone_core_get_nat_address(lc));
1793         }
1794
1795         /* if already choosed, don't change it */
1796         if (call->op && sal_op_get_contact(call->op)!=NULL){
1797                 return NULL;
1798         }
1799         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
1800         if (dest_proxy && dest_proxy->op){
1801                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
1802                 if (fixed_contact) {
1803                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
1804                         return ms_strdup(fixed_contact);
1805                 }
1806         }
1807         /* if the ping OPTIONS request succeeded use the contact guessed from the
1808          received, rport*/
1809         if (call->ping_op){
1810                 const char *guessed=sal_op_get_contact(call->ping_op);
1811                 if (guessed){
1812                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
1813                         return ms_strdup(guessed);
1814                 }
1815         }
1816
1817         ctt=linphone_core_get_primary_contact_parsed(lc);
1818
1819         if (ctt!=NULL){
1820                 char *ret;
1821                 /*otherwise use supllied localip*/
1822                 linphone_address_set_domain(ctt,localip);
1823                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
1824                 ret=linphone_address_as_string_uri_only(ctt);
1825                 linphone_address_destroy(ctt);
1826                 ms_message("Contact has been fixed using local ip to %s",ret);
1827                 return ret;
1828         }
1829         return NULL;
1830 }
1831
1832 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
1833         int err;
1834         char *contact;
1835         char *real_url,*barmsg;
1836         char *from;
1837         /*try to be best-effort in giving real local or routable contact address */
1838         contact=get_fixed_contact(lc,call,dest_proxy);
1839         if (contact){
1840                 sal_op_set_contact(call->op, contact);
1841                 ms_free(contact);
1842         }
1843         call->state=LCStateInit;
1844         linphone_core_init_media_streams(lc,lc->call);
1845         if (!lc->sip_conf.sdp_200_ack){
1846                 call->media_pending=TRUE;
1847                 sal_call_set_local_media_description(call->op,call->localdesc);
1848         }
1849         real_url=linphone_address_as_string(call->log->to);
1850         from=linphone_address_as_string(call->log->from);
1851         err=sal_call(call->op,from,real_url);
1852
1853         if (lc->sip_conf.sdp_200_ack){
1854                 call->media_pending=TRUE;
1855                 sal_call_set_local_media_description(call->op,call->localdesc);
1856         }
1857         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
1858         lc->vtable.display_status(lc,barmsg);
1859         ms_free(barmsg);
1860
1861         if (err<0){
1862                 ms_warning("Could not initiate call.");
1863                 lc->vtable.display_status(lc,_("could not call"));
1864                 linphone_core_stop_media_streams(lc,call);
1865                 linphone_call_destroy(call);
1866                 lc->call=NULL;
1867         }else gstate_new_state(lc, GSTATE_CALL_OUT_INVITE, real_url);
1868         ms_free(real_url);
1869         ms_free(from);
1870         return err;
1871 }
1872
1873 /**
1874  * Initiates an outgoing call
1875  *
1876  * @ingroup call_control
1877  * @param lc the LinphoneCore object
1878  * @param url the destination of the call (sip address, or phone number).
1879 **/
1880 int linphone_core_invite(LinphoneCore *lc, const char *url){
1881         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
1882         if (addr){
1883                 int err=linphone_core_invite_address(lc,addr);
1884                 linphone_address_destroy(addr);
1885                 return err;
1886         }
1887         return -1;
1888 }
1889
1890 /**
1891  * Initiates an outgoing call given a destination LinphoneAddress
1892  *
1893  * @ingroup call_control
1894  * @param lc the LinphoneCore object
1895  * @param url the destination of the call (sip address).
1896 **/
1897 int linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *real_parsed_url)
1898 {
1899         int err=0;
1900         const char *route=NULL;
1901         const char *from=NULL;
1902         LinphoneProxyConfig *proxy=NULL;
1903         LinphoneAddress *parsed_url2=NULL;
1904         char *real_url=NULL;
1905         LinphoneProxyConfig *dest_proxy=NULL;
1906         LinphoneCall *call;
1907
1908         if (lc->call!=NULL){
1909                 lc->vtable.display_warning(lc,_("Sorry, having multiple simultaneous calls is not supported yet !"));
1910                 return -1;
1911         }
1912
1913         linphone_core_get_default_proxy(lc,&proxy);
1914         route=linphone_core_get_route(lc);
1915
1916         real_url=linphone_address_as_string(real_parsed_url);
1917         dest_proxy=linphone_core_lookup_known_proxy(lc,real_parsed_url);
1918
1919         if (proxy!=dest_proxy && dest_proxy!=NULL) {
1920                 ms_message("Overriding default proxy setting for this call:");
1921                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
1922         }
1923
1924         if (dest_proxy!=NULL)
1925                 from=linphone_proxy_config_get_identity(dest_proxy);
1926         else if (proxy!=NULL)
1927                 from=linphone_proxy_config_get_identity(proxy);
1928
1929         /* if no proxy or no identity defined for this proxy, default to primary contact*/
1930         if (from==NULL) from=linphone_core_get_primary_contact(lc);
1931
1932         parsed_url2=linphone_address_new(from);
1933
1934         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(real_parsed_url));
1935         sal_op_set_route(call->op,route);
1936
1937         lc->call=call;
1938         if (dest_proxy!=NULL || lc->sip_conf.ping_with_options==FALSE){
1939                 err=linphone_core_start_invite(lc,call,dest_proxy);
1940         }else{
1941                 /*defer the start of the call after the OPTIONS ping*/
1942                 call->state=LCStatePreEstablishing;
1943                 call->ping_op=sal_op_new(lc->sal);
1944                 sal_ping(call->ping_op,from,real_url);
1945                 call->start_time=time(NULL);
1946         }
1947
1948         if (real_url!=NULL) ms_free(real_url);
1949         return err;
1950 }
1951
1952 int linphone_core_refer(LinphoneCore *lc, const char *url)
1953 {
1954         char *real_url=NULL;
1955         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
1956         LinphoneCall *call;
1957
1958         if (!real_parsed_url){
1959                 /* bad url */
1960                 return -1;
1961         }
1962         call=lc->call;
1963         if (call==NULL){
1964                 ms_warning("No established call to refer.");
1965                 return -1;
1966         }
1967         lc->call=NULL;
1968         real_url=linphone_address_as_string (real_parsed_url);
1969         sal_refer(call->op,real_url);
1970         ms_free(real_url);
1971         return 0;
1972 }
1973
1974 /**
1975  * Returns true if in incoming call is pending, ie waiting for being answered or declined.
1976  *
1977  * @ingroup call_control
1978 **/
1979 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
1980         if (lc->call!=NULL && lc->call->dir==LinphoneCallIncoming){
1981                 return TRUE;
1982         }
1983         return FALSE;
1984 }
1985
1986 void linphone_core_init_media_streams(LinphoneCore *lc, LinphoneCall *call){
1987         SalMediaDescription *md=call->localdesc;
1988         lc->audiostream=audio_stream_new(md->streams[0].port,linphone_core_ipv6_enabled(lc));
1989         if (linphone_core_echo_limiter_enabled(lc)){
1990                 const char *type=lp_config_get_string(lc->config,"sound","el_type","mic");
1991                 if (strcasecmp(type,"mic")==0)
1992                         audio_stream_enable_echo_limiter(lc->audiostream,ELControlMic);
1993                 else if (strcasecmp(type,"speaker")==0)
1994                         audio_stream_enable_echo_limiter(lc->audiostream,ELControlSpeaker);
1995         }
1996         audio_stream_enable_gain_control(lc->audiostream,TRUE);
1997         if (linphone_core_echo_cancellation_enabled(lc)){
1998                 int len,delay,framesize;
1999                 len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
2000                 delay=lp_config_get_int(lc->config,"sound","ec_delay",0);
2001                 framesize=lp_config_get_int(lc->config,"sound","ec_framesize",0);
2002                 audio_stream_set_echo_canceller_params(lc->audiostream,len,delay,framesize);
2003         }
2004         audio_stream_enable_automatic_gain_control(lc->audiostream,linphone_core_agc_enabled(lc));
2005         {
2006                 int enabled=lp_config_get_int(lc->config,"sound","noisegate",0);
2007                 audio_stream_enable_noise_gate(lc->audiostream,enabled);
2008         }
2009         if (lc->a_rtp)
2010                 rtp_session_set_transports(lc->audiostream->session,lc->a_rtp,lc->a_rtcp);
2011
2012 #ifdef VIDEO_ENABLED
2013         if ((lc->video_conf.display || lc->video_conf.capture) && md->streams[1].port>0)
2014                 lc->videostream=video_stream_new(md->streams[1].port,linphone_core_ipv6_enabled(lc));
2015 #else
2016         lc->videostream=NULL;
2017 #endif
2018 }
2019
2020 static int dtmf_tab[16]={'0','1','2','3','4','5','6','7','8','9','*','#','A','B','C','D'};
2021
2022 static void linphone_core_dtmf_received(RtpSession* s, int dtmf, void* user_data){
2023         LinphoneCore* lc = (LinphoneCore*)user_data;
2024         if (dtmf<0 || dtmf>15){
2025                 ms_warning("Bad dtmf value %i",dtmf);
2026                 return;
2027         }
2028         if (lc->vtable.dtmf_received != NULL)
2029                 lc->vtable.dtmf_received(lc, dtmf_tab[dtmf]);
2030 }
2031
2032 static void parametrize_equalizer(LinphoneCore *lc, AudioStream *st){
2033         if (st->equalizer){
2034                 MSFilter *f=st->equalizer;
2035                 int enabled=lp_config_get_int(lc->config,"sound","eq_active",0);
2036                 const char *gains=lp_config_get_string(lc->config,"sound","eq_gains",NULL);
2037                 ms_filter_call_method(f,MS_EQUALIZER_SET_ACTIVE,&enabled);
2038                 if (enabled){
2039                         if (gains){
2040                                 do{
2041                                         int bytes;
2042                                         MSEqualizerGain g;
2043                                         if (sscanf(gains,"%f:%f:%f %n",&g.frequency,&g.gain,&g.width,&bytes)==3){
2044                                                 ms_message("Read equalizer gains: %f(~%f) --> %f",g.frequency,g.width,g.gain);
2045                                                 ms_filter_call_method(f,MS_EQUALIZER_SET_GAIN,&g);
2046                                                 gains+=bytes;
2047                                         }else break;
2048                                 }while(1);
2049                         }
2050                 }
2051         }
2052 }
2053
2054 static void post_configure_audio_streams(LinphoneCore *lc){
2055         AudioStream *st=lc->audiostream;
2056         float gain=lp_config_get_float(lc->config,"sound","mic_gain",-1);
2057         if (gain!=-1)
2058                 audio_stream_set_mic_gain(st,gain);
2059         float recv_gain = lc->sound_conf.soft_play_lev;
2060         if (recv_gain != 0) {
2061                 linphone_core_set_soft_play_level(lc,recv_gain);
2062         }
2063         if (linphone_core_echo_limiter_enabled(lc)){
2064                 float speed=lp_config_get_float(lc->config,"sound","el_speed",-1);
2065                 float thres=lp_config_get_float(lc->config,"sound","el_thres",-1);
2066                 float force=lp_config_get_float(lc->config,"sound","el_force",-1);
2067                 int sustain=lp_config_get_int(lc->config,"sound","el_sustain",-1);
2068                 MSFilter *f=NULL;
2069                 if (st->el_type==ELControlMic){
2070                         f=st->volsend;
2071                         if (speed==-1) speed=0.03;
2072                         if (force==-1) force=10;
2073                 }
2074                 else if (st->el_type==ELControlSpeaker){
2075                         f=st->volrecv;
2076                         if (speed==-1) speed=0.02;
2077                         if (force==-1) force=5;
2078                 }
2079                 if (speed!=-1)
2080                         ms_filter_call_method(f,MS_VOLUME_SET_EA_SPEED,&speed);
2081                 if (thres!=-1)
2082                         ms_filter_call_method(f,MS_VOLUME_SET_EA_THRESHOLD,&thres);
2083                 if (force!=-1)
2084                         ms_filter_call_method(f,MS_VOLUME_SET_EA_FORCE,&force);
2085                 if (sustain!=-1)
2086                         ms_filter_call_method(f,MS_VOLUME_SET_EA_SUSTAIN,&sustain);
2087
2088         }
2089         if (st->volsend){
2090                 float ng_thres=lp_config_get_float(lc->config,"sound","ng_thres",0.05);
2091                 float ng_floorgain=lp_config_get_float(lc->config,"sound","ng_floorgain",0);
2092                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_NOISE_GATE_THRESHOLD,&ng_thres);
2093                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_NOISE_GATE_FLOORGAIN,&ng_floorgain);
2094         }
2095         parametrize_equalizer(lc,st);
2096         if (lc->vtable.dtmf_received!=NULL){
2097                 /* replace by our default action*/
2098                 audio_stream_play_received_dtmfs(lc->audiostream,FALSE);
2099                 rtp_session_signal_connect(lc->audiostream->session,"telephone-event",(RtpCallback)linphone_core_dtmf_received,(unsigned long)lc);
2100         }
2101 }
2102
2103 static RtpProfile *make_profile(LinphoneCore *lc, const SalStreamDescription *desc, int *used_pt){
2104         int bw;
2105         const MSList *elem;
2106         RtpProfile *prof=rtp_profile_new("Call profile");
2107         bool_t first=TRUE;
2108         if (desc->type==SalAudio){
2109                 bw=get_min_bandwidth(lc->up_audio_bw,desc->bandwidth);
2110         }
2111         else bw=get_min_bandwidth(lc->up_video_bw,desc->bandwidth);
2112         for(elem=desc->payloads;elem!=NULL;elem=elem->next){
2113                 PayloadType *pt=(PayloadType*)elem->data;
2114                 if (bw>0) pt->normal_bitrate=bw*1000;
2115                 else if (desc->type==SalAudio){
2116                         pt->normal_bitrate=-1;
2117                 }
2118                 if (first) {
2119                         *used_pt=payload_type_get_number(pt);
2120                         first=FALSE;
2121                 }
2122                 if (desc->ptime>0){
2123                         char tmp[40];
2124                         snprintf(tmp,sizeof(tmp),"ptime=%i",desc->ptime);
2125                         payload_type_append_send_fmtp(pt,tmp);
2126                 }
2127                 rtp_profile_set_payload(prof,payload_type_get_number(pt),pt);
2128         }
2129         return prof;
2130 }
2131
2132 void linphone_core_start_media_streams(LinphoneCore *lc, LinphoneCall *call){
2133         LinphoneAddress *me=linphone_core_get_primary_contact_parsed(lc);
2134         const char *tool="linphone-" LINPHONE_VERSION;
2135         char *cname;
2136         int used_pt=-1;
2137         /* adjust rtp jitter compensation. It must be at least the latency of the sound card */
2138         int jitt_comp=MAX(lc->sound_conf.latency,lc->rtp_conf.audio_jitt_comp);
2139
2140         if (call->media_start_time==0) call->media_start_time=time(NULL);
2141
2142         cname=linphone_address_as_string_uri_only(me);
2143         {
2144                 const SalStreamDescription *stream=sal_media_description_find_stream(call->resultdesc,
2145                                                         SalProtoRtpAvp,SalAudio);
2146                 if (stream){
2147                         call->audio_profile=make_profile(lc,stream,&used_pt);
2148                         if (!lc->use_files){
2149                                 MSSndCard *playcard=lc->sound_conf.play_sndcard;
2150                                 MSSndCard *captcard=lc->sound_conf.capt_sndcard;
2151                                 if (playcard==NULL) {
2152                                         ms_warning("No card defined for playback !");
2153                                         goto end;
2154                                 }
2155                                 if (captcard==NULL) {
2156                                         ms_warning("No card defined for capture !");
2157                                         goto end;
2158                                 }
2159                                 audio_stream_start_now(
2160                                         lc->audiostream,
2161                                         call->audio_profile,
2162                                         stream->addr[0]!='\0' ? stream->addr : call->resultdesc->addr,
2163                                         stream->port,
2164                                         stream->port+1,
2165                                         used_pt,
2166                                         jitt_comp,
2167                                         playcard,
2168                                         captcard,
2169                                         linphone_core_echo_cancellation_enabled(lc));
2170                         }else{
2171                                 audio_stream_start_with_files(
2172                                         lc->audiostream,
2173                                         call->audio_profile,
2174                                         stream->addr[0]!='\0' ? stream->addr : call->resultdesc->addr,
2175                                         stream->port,
2176                                         stream->port+1,
2177                                         used_pt,
2178                                         100,
2179                                         lc->play_file,
2180                                         lc->rec_file);
2181                         }
2182                         post_configure_audio_streams(lc);
2183                         audio_stream_set_rtcp_information(lc->audiostream, cname, tool);
2184                 }else ms_warning("No audio stream defined ?");
2185         }
2186 #ifdef VIDEO_ENABLED
2187         {
2188                 const SalStreamDescription *stream=sal_media_description_find_stream(call->resultdesc,
2189                                                         SalProtoRtpAvp,SalVideo);
2190                 /* shutdown preview */
2191                 if (lc->previewstream!=NULL) {
2192                         video_preview_stop(lc->previewstream);
2193                         lc->previewstream=NULL;
2194                 }
2195                 if (stream && (lc->video_conf.display || lc->video_conf.capture)) {
2196                         const char *addr=stream->addr[0]!='\0' ? stream->addr : call->resultdesc->addr;
2197                         call->video_profile=make_profile(lc,stream,&used_pt);
2198                         video_stream_set_sent_video_size(lc->videostream,linphone_core_get_preferred_video_size(lc));
2199                         video_stream_enable_self_view(lc->videostream,lc->video_conf.selfview);
2200                         if (lc->video_conf.display && lc->video_conf.capture)
2201                                 video_stream_start(lc->videostream,
2202                                 call->video_profile, addr, stream->port,
2203                                 stream->port+1,
2204                                 used_pt, jitt_comp, lc->video_conf.device);
2205                         else if (lc->video_conf.display)
2206                                 video_stream_recv_only_start(lc->videostream,
2207                                 call->video_profile, addr, stream->port,
2208                                 used_pt, jitt_comp);
2209                         else if (lc->video_conf.capture)
2210                                 video_stream_send_only_start(lc->videostream,
2211                                 call->video_profile, addr, stream->port,
2212                                 stream->port+1,
2213                                 used_pt, jitt_comp, lc->video_conf.device);
2214                         video_stream_set_rtcp_information(lc->videostream, cname,tool);
2215                 }
2216         }
2217 #endif
2218         goto end;
2219         end:
2220                 ms_free(cname);
2221                 linphone_address_destroy(me);
2222                 lc->call->state=LCStateAVRunning;
2223 }
2224
2225 void linphone_core_stop_media_streams(LinphoneCore *lc, LinphoneCall *call){
2226         if (lc->audiostream!=NULL) {
2227                 audio_stream_stop(lc->audiostream);
2228                 lc->audiostream=NULL;
2229         }
2230 #ifdef VIDEO_ENABLED
2231         if (lc->videostream!=NULL){
2232                 if (lc->video_conf.display && lc->video_conf.capture)
2233                         video_stream_stop(lc->videostream);
2234                 else if (lc->video_conf.display)
2235                         video_stream_recv_only_stop(lc->videostream);
2236                 else if (lc->video_conf.capture)
2237                         video_stream_send_only_stop(lc->videostream);
2238                 lc->videostream=NULL;
2239         }
2240         if (linphone_core_video_preview_enabled(lc)){
2241                 if (lc->previewstream==NULL){
2242                         lc->previewstream=video_preview_start(lc->video_conf.device, lc->video_conf.vsize);
2243                 }
2244         }
2245 #endif
2246         if (call->audio_profile){
2247                 rtp_profile_clear_all(call->audio_profile);
2248                 rtp_profile_destroy(call->audio_profile);
2249                 call->audio_profile=NULL;
2250         }
2251         if (call->video_profile){
2252                 rtp_profile_clear_all(call->video_profile);
2253                 rtp_profile_destroy(call->video_profile);
2254                 call->video_profile=NULL;
2255         }
2256 }
2257
2258 /**
2259  * Accept an incoming call.
2260  *
2261  * @ingroup call_control
2262  * Basically the application is notified of incoming calls within the
2263  * invite_recv callback of the #LinphoneCoreVTable structure.
2264  * The application can later respond positively to the call using
2265  * this method.
2266  * @param lc the LinphoneCore object
2267  * @param url the SIP address of the originator of the call, or NULL.
2268  *            This argument is useful for managing multiple calls simulatenously,
2269  *            however this feature is not supported yet.
2270  *            Using NULL will accept the unique incoming call in progress.
2271 **/
2272 int linphone_core_accept_call(LinphoneCore *lc, const char *url)
2273 {
2274         LinphoneCall *call=lc->call;
2275         const char *contact=NULL;
2276
2277         if (call==NULL){
2278                 return -1;
2279         }
2280
2281         if (call->state==LCStateAVRunning){
2282                 /*call already accepted*/
2283                 return -1;
2284         }
2285
2286         /*stop ringing */
2287         if (lc->ringstream!=NULL) {
2288                 ms_message("stop ringing");
2289                 ring_stop(lc->ringstream);
2290                 ms_message("ring stopped");
2291                 lc->ringstream=NULL;
2292         }
2293
2294         /*try to be best-effort in giving real local or routable contact address*/
2295         contact=get_fixed_contact(lc,call,NULL);
2296         if (contact)
2297                 sal_op_set_contact(call->op,contact);
2298
2299         sal_call_accept(call->op);
2300         lc->vtable.display_status(lc,_("Connected."));
2301         gstate_new_state(lc, GSTATE_CALL_IN_CONNECTED, NULL);
2302         call->resultdesc=sal_call_get_final_media_description(call->op);
2303         if (call->resultdesc){
2304                 sal_media_description_ref(call->resultdesc);
2305                 linphone_core_start_media_streams(lc, call);
2306         }else call->media_pending=TRUE;
2307         ms_message("call answered.");
2308         return 0;
2309 }
2310
2311 /**
2312  * Terminates a call.
2313  *
2314  * @ingroup call_control
2315  * @param lc The LinphoneCore
2316  * @param url the destination of the call to be terminated, use NULL if there is
2317  *            only one call (which is case in this version of liblinphone).
2318 **/
2319 int linphone_core_terminate_call(LinphoneCore *lc, const char *url)
2320 {
2321         LinphoneCall *call=lc->call;
2322         if (call==NULL){
2323                 return -1;
2324         }
2325         lc->call=NULL;
2326         sal_call_terminate(call->op);
2327
2328         /*stop ringing*/
2329         if (lc->ringstream!=NULL) {
2330                 ring_stop(lc->ringstream);
2331                 lc->ringstream=NULL;
2332         }
2333         linphone_core_stop_media_streams(lc,call);
2334         lc->vtable.display_status(lc,_("Call ended") );
2335         gstate_new_state(lc, GSTATE_CALL_END, NULL);
2336         linphone_call_destroy(call);
2337         return 0;
2338 }
2339
2340 /**
2341  * Returns TRUE if there is a call running or pending.
2342  *
2343  * @ingroup call_control
2344 **/
2345 bool_t linphone_core_in_call(const LinphoneCore *lc){
2346         return lc->call!=NULL;
2347 }
2348
2349 int linphone_core_send_publish(LinphoneCore *lc,
2350                                LinphoneOnlineStatus presence_mode)
2351 {
2352         const MSList *elem;
2353         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
2354                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2355                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
2356         }
2357         return 0;
2358 }
2359
2360 /**
2361  * Set the incoming call timeout in seconds.
2362  *
2363  * @ingroup call_control
2364  * If an incoming call isn't answered for this timeout period, it is
2365  * automatically declined.
2366 **/
2367 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
2368         lc->sip_conf.inc_timeout=seconds;
2369 }
2370
2371 /**
2372  * Returns the incoming call timeout
2373  *
2374  * @ingroup call_control
2375  * See linphone_core_set_inc_timeout() for details.
2376 **/
2377 int linphone_core_get_inc_timeout(LinphoneCore *lc){
2378         return lc->sip_conf.inc_timeout;
2379 }
2380
2381 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
2382                                                                                                         const char *contact,
2383                                                                                                         LinphoneOnlineStatus presence_mode)
2384 {
2385         if (minutes_away>0) lc->minutes_away=minutes_away;
2386
2387         if (lc->alt_contact!=NULL) {
2388                 ms_free(lc->alt_contact);
2389                 lc->alt_contact=NULL;
2390         }
2391         if (contact) lc->alt_contact=ms_strdup(contact);
2392         if (lc->presence_mode!=presence_mode){
2393                 linphone_core_notify_all_friends(lc,presence_mode);
2394                 /*
2395                    Improve the use of all LINPHONE_STATUS available.
2396                    !TODO Do not mix "presence status" with "answer status code"..
2397                    Use correct parameter to follow sip_if_match/sip_etag.
2398                  */
2399                 linphone_core_send_publish(lc,presence_mode);
2400         }
2401         lc->prev_mode=lc->presence_mode;
2402         lc->presence_mode=presence_mode;
2403 }
2404
2405 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
2406         return lc->presence_mode;
2407 }
2408
2409 /**
2410  * Get playback sound level in 0-100 scale.
2411  *
2412  * @ingroup media_parameters
2413 **/
2414 int linphone_core_get_play_level(LinphoneCore *lc)
2415 {
2416         return lc->sound_conf.play_lev;
2417 }
2418
2419 /**
2420  * Get ring sound level in 0-100 scale
2421  *
2422  * @ingroup media_parameters
2423 **/
2424 int linphone_core_get_ring_level(LinphoneCore *lc)
2425 {
2426         return lc->sound_conf.ring_lev;
2427 }
2428
2429 /**
2430  * Get sound capture level in 0-100 scale
2431  *
2432  * @ingroup media_parameters
2433 **/
2434 int linphone_core_get_rec_level(LinphoneCore *lc){
2435         return lc->sound_conf.rec_lev;
2436 }
2437
2438 /**
2439  * Set sound ring level in 0-100 scale
2440  *
2441  * @ingroup media_parameters
2442 **/
2443 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
2444         MSSndCard *sndcard;
2445         lc->sound_conf.ring_lev=level;
2446         sndcard=lc->sound_conf.ring_sndcard;
2447         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
2448 }
2449
2450
2451 void linphone_core_set_soft_play_level(LinphoneCore *lc, float level){
2452         float gain=level;
2453         lc->sound_conf.soft_play_lev=level;
2454         AudioStream *st=lc->audiostream;
2455         if (!st) return; /*just return*/
2456
2457         if (st->volrecv){
2458                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
2459         }else ms_warning("Could not apply gain: gain control wasn't activated.");
2460 }
2461 float linphone_core_get_soft_play_level(LinphoneCore *lc) {
2462         float gain=0;
2463         AudioStream *st=lc->audiostream;
2464         if (st->volrecv){
2465                 ms_filter_call_method(st->volrecv,MS_VOLUME_GET,&gain);
2466         }else ms_warning("Could not get gain: gain control wasn't activated.");
2467
2468         return gain;
2469 }
2470
2471 /**
2472  * Set sound playback level in 0-100 scale
2473  *
2474  * @ingroup media_parameters
2475 **/
2476 void linphone_core_set_play_level(LinphoneCore *lc, int level){
2477         MSSndCard *sndcard;
2478         lc->sound_conf.play_lev=level;
2479         sndcard=lc->sound_conf.play_sndcard;
2480         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
2481 }
2482
2483 /**
2484  * Set sound capture level in 0-100 scale
2485  *
2486  * @ingroup media_parameters
2487 **/
2488 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
2489 {
2490         MSSndCard *sndcard;
2491         lc->sound_conf.rec_lev=level;
2492         sndcard=lc->sound_conf.capt_sndcard;
2493         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
2494 }
2495
2496 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
2497         MSSndCard *sndcard=NULL;
2498         if (devid!=NULL){
2499                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
2500                 if (sndcard!=NULL &&
2501                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
2502                         ms_warning("%s card does not have the %s capability, ignoring.",
2503                                 devid,
2504                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
2505                         sndcard=NULL;
2506                 }
2507         }
2508         if (sndcard==NULL) {
2509                 /* get a card that has read+write capabilities */
2510                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
2511                 /* otherwise refine to the first card having the right capability*/
2512                 if (sndcard==NULL){
2513                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
2514                         for(;elem!=NULL;elem=elem->next){
2515                                 sndcard=(MSSndCard*)elem->data;
2516                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
2517                         }
2518                 }
2519                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
2520                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
2521                         sndcard=(MSSndCard*)elem->data;
2522                 }
2523         }
2524         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
2525         return sndcard;
2526 }
2527
2528 /**
2529  * Returns true if the specified sound device can capture sound.
2530  *
2531  * @ingroup media_parameters
2532  * @param devid the device name as returned by linphone_core_get_sound_devices()
2533 **/
2534 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
2535         MSSndCard *sndcard;
2536         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
2537         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
2538         return FALSE;
2539 }
2540
2541 /**
2542  * Returns true if the specified sound device can play sound.
2543  *
2544  * @ingroup media_parameters
2545  * @param devid the device name as returned by linphone_core_get_sound_devices()
2546 **/
2547 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
2548         MSSndCard *sndcard;
2549         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
2550         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
2551         return FALSE;
2552 }
2553
2554 /**
2555  * Sets the sound device used for ringing.
2556  *
2557  * @ingroup media_parameters
2558  * @param devid the device name as returned by linphone_core_get_sound_devices()
2559 **/
2560 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
2561         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
2562         lc->sound_conf.ring_sndcard=card;
2563         if (card && lc->ready)
2564                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
2565         return 0;
2566 }
2567
2568 /**
2569  * Sets the sound device used for playback.
2570  *
2571  * @ingroup media_parameters
2572  * @param devid the device name as returned by linphone_core_get_sound_devices()
2573 **/
2574 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
2575         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
2576         lc->sound_conf.play_sndcard=card;
2577         if (card && lc->ready)
2578                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
2579         return 0;
2580 }
2581
2582 /**
2583  * Sets the sound device used for capture.
2584  *
2585  * @ingroup media_parameters
2586  * @param devid the device name as returned by linphone_core_get_sound_devices()
2587 **/
2588 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
2589         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
2590         lc->sound_conf.capt_sndcard=card;
2591         if (card && lc->ready)
2592                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
2593         return 0;
2594 }
2595
2596 /**
2597  * Returns the name of the currently assigned sound device for ringing.
2598  *
2599  * @ingroup media_parameters
2600 **/
2601 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
2602 {
2603         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
2604         return NULL;
2605 }
2606
2607 /**
2608  * Returns the name of the currently assigned sound device for playback.
2609  *
2610  * @ingroup media_parameters
2611 **/
2612 const char * linphone_core_get_playback_device(LinphoneCore *lc)
2613 {
2614         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
2615 }
2616
2617 /**
2618  * Returns the name of the currently assigned sound device for capture.
2619  *
2620  * @ingroup media_parameters
2621 **/
2622 const char * linphone_core_get_capture_device(LinphoneCore *lc)
2623 {
2624         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
2625 }
2626
2627 /**
2628  * Returns an unmodifiable array of available sound devices.
2629  *
2630  * @ingroup media_parameters
2631  * The array is NULL terminated.
2632 **/
2633 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
2634         build_sound_devices_table(lc);
2635         return lc->sound_conf.cards;
2636 }
2637
2638 /**
2639  * Returns an unmodifiable array of available video capture devices.
2640  *
2641  * @ingroup media_parameters
2642  * The array is NULL terminated.
2643 **/
2644 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
2645         return lc->video_conf.cams;
2646 }
2647
2648 char linphone_core_get_sound_source(LinphoneCore *lc)
2649 {
2650         return lc->sound_conf.source;
2651 }
2652
2653 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
2654 {
2655         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
2656         lc->sound_conf.source=source;
2657         if (!sndcard) return;
2658         switch(source){
2659                 case 'm':
2660                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
2661                         break;
2662                 case 'l':
2663                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
2664                         break;
2665         }
2666
2667 }
2668
2669
2670 /**
2671  * Sets the path to a wav file used for ringing.
2672  *
2673  * The file must be a wav 16bit linear.
2674  *
2675  * @ingroup media_parameters
2676 **/
2677 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
2678         if (lc->sound_conf.local_ring!=0){
2679                 ms_free(lc->sound_conf.local_ring);
2680         }
2681         lc->sound_conf.local_ring=ms_strdup(path);
2682         if (lc->ready && lc->sound_conf.local_ring)
2683                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
2684 }
2685
2686 /**
2687  * Returns the path to the wav file used for ringing.
2688  *
2689  * @ingroup media_parameters
2690 **/
2691 const char *linphone_core_get_ring(const LinphoneCore *lc){
2692         return lc->sound_conf.local_ring;
2693 }
2694
2695 static void notify_end_of_ring(void *ud ,unsigned int event, void * arg){
2696         LinphoneCore *lc=(LinphoneCore*)ud;
2697         lc->preview_finished=1;
2698 }
2699
2700 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
2701 {
2702         if (lc->ringstream!=0){
2703                 ms_warning("Cannot start ring now,there's already a ring being played");
2704                 return -1;
2705         }
2706         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
2707         lc->preview_finished=0;
2708         if (lc->sound_conf.ring_sndcard!=NULL){
2709                 lc->ringstream=ring_start_with_cb(ring,2000,lc->sound_conf.ring_sndcard,notify_end_of_ring,(void *)lc);
2710         }
2711         return 0;
2712 }
2713
2714 /**
2715  * Sets the path to a wav file used for ringing back.
2716  *
2717  * Ringback means the ring that is heard when it's ringing at the remote party.
2718  * The file must be a wav 16bit linear.
2719  *
2720  * @ingroup media_parameters
2721 **/
2722 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
2723         if (lc->sound_conf.remote_ring!=0){
2724                 ms_free(lc->sound_conf.remote_ring);
2725         }
2726         lc->sound_conf.remote_ring=ms_strdup(path);
2727 }
2728
2729 /**
2730  * Returns the path to the wav file used for ringing back.
2731  *
2732  * @ingroup media_parameters
2733 **/
2734 const char * linphone_core_get_ringback(const LinphoneCore *lc){
2735         return lc->sound_conf.remote_ring;
2736 }
2737
2738 /**
2739  * Enables or disable echo cancellation.
2740  *
2741  * @ingroup media_parameters
2742 **/
2743 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
2744         lc->sound_conf.ec=val;
2745         if (lc->ready)
2746                 lp_config_set_int(lc->config,"sound","echocancellation",val);
2747 }
2748
2749 /**
2750  * Returns TRUE if echo cancellation is enabled.
2751  *
2752  * @ingroup media_parameters
2753 **/
2754 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
2755         return lc->sound_conf.ec;
2756 }
2757
2758 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
2759         lc->sound_conf.ea=val;
2760 }
2761
2762 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
2763         return lc->sound_conf.ea;
2764 }
2765
2766 /**
2767  * Mutes or unmutes the local microphone.
2768  *
2769  * @ingroup media_parameters
2770 **/
2771 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
2772         if (lc->audiostream!=NULL){
2773                  audio_stream_set_mic_gain(lc->audiostream,
2774                         (val==TRUE) ? 0 : 1.0);
2775         }
2776 }
2777
2778 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
2779         lc->sound_conf.agc=val;
2780 }
2781
2782 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
2783         return lc->sound_conf.agc;
2784 }
2785
2786 /**
2787  * Send the specified dtmf.
2788  *
2789  * @ingroup media_parameters
2790  * This function only works during calls. The dtmf is automatically played to the user.
2791  * @param lc The LinphoneCore object
2792  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
2793  *
2794 **/
2795 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
2796 {
2797         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
2798         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
2799         {
2800                 /* In Band DTMF */
2801                 if (lc->audiostream!=NULL){
2802                         audio_stream_send_dtmf(lc->audiostream,dtmf);
2803                 }
2804                 else
2805                 {
2806                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
2807                 }
2808         }
2809         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
2810                 /* Out of Band DTMF (use INFO method) */
2811                 LinphoneCall *call=lc->call;
2812                 if (call==NULL){
2813                         return;
2814                 }
2815                 sal_call_send_dtmf(call->op,dtmf);
2816         }
2817 }
2818
2819 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
2820         if (lc->net_conf.stun_server!=NULL)
2821                 ms_free(lc->net_conf.stun_server);
2822         if (server)
2823                 lc->net_conf.stun_server=ms_strdup(server);
2824         else lc->net_conf.stun_server=NULL;
2825 }
2826
2827 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
2828         return lc->net_conf.stun_server;
2829 }
2830
2831 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
2832         return lc->net_conf.relay;
2833 }
2834
2835 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
2836         if (lc->net_conf.relay!=NULL){
2837                 ms_free(lc->net_conf.relay);
2838                 lc->net_conf.relay=NULL;
2839         }
2840         if (addr){
2841                 lc->net_conf.relay=ms_strdup(addr);
2842         }
2843         return 0;
2844 }
2845
2846 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
2847 {
2848         if (lc->net_conf.nat_address!=NULL){
2849                 ms_free(lc->net_conf.nat_address);
2850         }
2851         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
2852         else lc->net_conf.nat_address=NULL;
2853         if (lc->sip_conf.contact) update_primary_contact(lc);
2854 }
2855
2856 const char *linphone_core_get_nat_address(const LinphoneCore *lc)
2857 {
2858         return lc->net_conf.nat_address;
2859 }
2860
2861 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
2862         lc->net_conf.firewall_policy=pol;
2863         if (lc->sip_conf.contact) update_primary_contact(lc);
2864 }
2865
2866 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
2867         return lc->net_conf.firewall_policy;
2868 }
2869
2870 /**
2871  * Get the list of call logs (past calls).
2872  *
2873  * @ingroup call_logs
2874 **/
2875 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
2876         lc->missed_calls=0;
2877         return lc->call_logs;
2878 }
2879
2880 /**
2881  * Erase the call log.
2882  *
2883  * @ingroup call_logs
2884 **/
2885 void linphone_core_clear_call_logs(LinphoneCore *lc){
2886         lc->missed_calls=0;
2887         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
2888         lc->call_logs=ms_list_free(lc->call_logs);
2889         call_logs_write_to_config_file(lc);
2890 }
2891
2892 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
2893 #ifdef VIDEO_ENABLED
2894         if (lc->videostream==NULL){
2895                 if (val){
2896                         if (lc->previewstream==NULL){
2897                                 lc->previewstream=video_preview_start(lc->video_conf.device,
2898                                                         lc->video_conf.vsize);
2899                         }
2900                 }else{
2901                         if (lc->previewstream!=NULL){
2902                                 video_preview_stop(lc->previewstream);
2903                                 lc->previewstream=NULL;
2904                         }
2905                 }
2906         }
2907 #endif
2908 }
2909
2910 /**
2911  * Enables video globally.
2912  *
2913  * @ingroup media_parameters
2914  * This function does not have any effect during calls. It just indicates LinphoneCore to
2915  * initiate future calls with video or not. The two boolean parameters indicate in which
2916  * direction video is enabled. Setting both to false disables video entirely.
2917  *
2918  * @param vcap_enabled indicates whether video capture is enabled
2919  * @param display_enabled indicates whether video display should be shown
2920  *
2921 **/
2922 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
2923 #ifndef VIDEO_ENABLED
2924         if (vcap_enabled || display_enabled)
2925                 ms_warning("This version of linphone was built without video support.");
2926 #endif
2927         lc->video_conf.capture=vcap_enabled;
2928         lc->video_conf.display=display_enabled;
2929
2930         /* need to re-apply network bandwidth settings*/
2931         linphone_core_set_download_bandwidth(lc,
2932                 linphone_core_get_download_bandwidth(lc));
2933         linphone_core_set_upload_bandwidth(lc,
2934                 linphone_core_get_upload_bandwidth(lc));
2935 }
2936
2937 /**
2938  * Returns TRUE if video is enabled, FALSE otherwise.
2939  * @ingroup media_parameters
2940 **/
2941 bool_t linphone_core_video_enabled(LinphoneCore *lc){
2942         return (lc->video_conf.display || lc->video_conf.capture);
2943 }
2944
2945 /**
2946  * Controls video preview enablement.
2947  *
2948  * @ingroup media_parameters
2949  * Video preview refers to the action of displaying the local webcam image
2950  * to the user while not in call.
2951 **/
2952 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
2953         lc->video_conf.show_local=val;
2954 }
2955
2956 /**
2957  * Returns TRUE if video previewing is enabled.
2958  * @ingroup media_parameters
2959 **/
2960 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
2961         return lc->video_conf.show_local;
2962 }
2963
2964 /**
2965  * Enables or disable self view during calls.
2966  *
2967  * @ingroup media_parameters
2968  * Self-view refers to having local webcam image inserted in corner
2969  * of the video window during calls.
2970  * This function works at any time, including during calls.
2971 **/
2972 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
2973         lc->video_conf.selfview=val;
2974 #ifdef VIDEO_ENABLED
2975         if (lc->videostream){
2976                 video_stream_enable_self_view(lc->videostream,val);
2977         }
2978 #endif
2979 }
2980
2981 /**
2982  * Returns TRUE if self-view is enabled, FALSE otherwise.
2983  *
2984  * @ingroup media_parameters
2985  *
2986  * Refer to linphone_core_enable_self_view() for details.
2987 **/
2988 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
2989         return lc->video_conf.selfview;
2990 }
2991
2992 /**
2993  * Sets the active video device.
2994  *
2995  * @ingroup media_parameters
2996  * @param id the name of the video device as returned by linphone_core_get_video_devices()
2997 **/
2998 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
2999         MSWebCam *olddev=lc->video_conf.device;
3000         const char *vd;
3001         if (id!=NULL){
3002                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
3003                 if (lc->video_conf.device==NULL){
3004                         ms_warning("Could not found video device %s",id);
3005                 }
3006         }
3007         if (lc->video_conf.device==NULL)
3008                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
3009         if (olddev!=NULL && olddev!=lc->video_conf.device){
3010                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
3011         }
3012         if (lc->ready && lc->video_conf.device){
3013                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
3014                 if (vd && strstr(vd,"Static picture")!=NULL){
3015                         vd=NULL;
3016                 }
3017                 lp_config_set_string(lc->config,"video","device",vd);
3018         }
3019         return 0;
3020 }
3021
3022 /**
3023  * Returns the name of the currently active video device.
3024  *
3025  * @ingroup media_parameters
3026 **/
3027 const char *linphone_core_get_video_device(const LinphoneCore *lc){
3028         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
3029         return NULL;
3030 }
3031
3032 /**
3033  * Returns the native window handle of the video window, casted as an unsigned long.
3034  *
3035  * @ingroup media_parameters
3036 **/
3037 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
3038 #ifdef VIDEO_ENABLED
3039         if (lc->videostream)
3040                 return video_stream_get_native_window_id(lc->videostream);
3041         if (lc->previewstream)
3042                 return video_stream_get_native_window_id(lc->previewstream);
3043 #endif
3044         return 0;
3045 }
3046
3047 static MSVideoSizeDef supported_resolutions[]={
3048         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
3049         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
3050         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
3051         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
3052         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
3053         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
3054         {       {0,0}                   ,       NULL    }
3055 };
3056
3057 /**
3058  * Returns the zero terminated table of supported video resolutions.
3059  *
3060  * @ingroup media_parameters
3061 **/
3062 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
3063         return supported_resolutions;
3064 }
3065
3066 static MSVideoSize video_size_get_by_name(const char *name){
3067         MSVideoSizeDef *pdef=supported_resolutions;
3068         MSVideoSize null_vsize={0,0};
3069         for(;pdef->name!=NULL;pdef++){
3070                 if (strcasecmp(name,pdef->name)==0){
3071                         return pdef->vsize;
3072                 }
3073         }
3074         ms_warning("Video resolution %s is not supported in linphone.",name);
3075         return null_vsize;
3076 }
3077
3078 static const char *video_size_get_name(MSVideoSize vsize){
3079         MSVideoSizeDef *pdef=supported_resolutions;
3080         for(;pdef->name!=NULL;pdef++){
3081                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
3082                         return pdef->name;
3083                 }
3084         }
3085         return NULL;
3086 }
3087
3088 static bool_t video_size_supported(MSVideoSize vsize){
3089         if (video_size_get_name(vsize)) return TRUE;
3090         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
3091         return FALSE;
3092 }
3093
3094 /**
3095  * Sets the preferred video size.
3096  *
3097  * @ingroup media_parameters
3098  * This applies only to the stream that is captured and sent to the remote party,
3099  * since we accept all standard video size on the receive path.
3100 **/
3101 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
3102         if (video_size_supported(vsize)){
3103                 MSVideoSize oldvsize=lc->video_conf.vsize;
3104                 lc->video_conf.vsize=vsize;
3105                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
3106                         toggle_video_preview(lc,FALSE);
3107                         toggle_video_preview(lc,TRUE);
3108                 }
3109                 if (lc->ready)
3110                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
3111         }
3112 }
3113
3114 /**
3115  * Sets the preferred video size by its name.
3116  *
3117  * @ingroup media_parameters
3118  * This is identical to linphone_core_set_preferred_video_size() except
3119  * that it takes the name of the video resolution as input.
3120  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
3121 **/
3122 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
3123         MSVideoSize vsize=video_size_get_by_name(name);
3124         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
3125         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
3126         else linphone_core_set_preferred_video_size(lc,default_vsize);
3127 }
3128
3129 /**
3130  * Returns the current preferred video size for sending.
3131  *
3132  * @ingroup media_parameters
3133 **/
3134 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
3135         return lc->video_conf.vsize;
3136 }
3137
3138 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
3139         lc->use_files=yesno;
3140 }
3141
3142 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
3143         if (lc->play_file!=NULL){
3144                 ms_free(lc->play_file);
3145                 lc->play_file=NULL;
3146         }
3147         if (file!=NULL) {
3148                 lc->play_file=ms_strdup(file);
3149                 if (lc->audiostream->ticker)
3150                         audio_stream_play(lc->audiostream,file);
3151         }
3152 }
3153
3154 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
3155         if (lc->rec_file!=NULL){
3156                 ms_free(lc->rec_file);
3157                 lc->rec_file=NULL;
3158         }
3159         if (file!=NULL) {
3160                 lc->rec_file=ms_strdup(file);
3161                 if (lc->audiostream)
3162                         audio_stream_record(lc->audiostream,file);
3163         }
3164 }
3165
3166 /**
3167  * Retrieves the user pointer that was given to linphone_core_new()
3168  *
3169  * @ingroup initializing
3170 **/
3171 void *linphone_core_get_user_data(LinphoneCore *lc){
3172         return lc->data;
3173 }
3174
3175 int linphone_core_get_mtu(const LinphoneCore *lc){
3176         return lc->net_conf.mtu;
3177 }
3178
3179 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
3180         lc->net_conf.mtu=mtu;
3181         if (mtu>0){
3182                 if (mtu<500){
3183                         ms_error("MTU too small !");
3184                         mtu=500;
3185                 }
3186                 ms_set_mtu(mtu);
3187                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
3188         }else ms_set_mtu(0);//use mediastreamer2 default value
3189 }
3190
3191 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
3192         lc->wait_cb=cb;
3193         lc->wait_ctx=user_context;
3194 }
3195
3196 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
3197         if (lc->wait_cb){
3198                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
3199         }
3200 }
3201
3202 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
3203         if (lc->wait_cb){
3204                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
3205         }else{
3206 #ifdef WIN32
3207                 Sleep(50000);
3208 #else
3209                 usleep(50000);
3210 #endif
3211         }
3212 }
3213
3214 void linphone_core_stop_waiting(LinphoneCore *lc){
3215         if (lc->wait_cb){
3216                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
3217         }
3218 }
3219
3220 void linphone_core_set_audio_transports(LinphoneCore *lc, RtpTransport *rtp, RtpTransport *rtcp){
3221         lc->a_rtp=rtp;
3222         lc->a_rtcp=rtcp;
3223 }
3224
3225 void net_config_uninit(LinphoneCore *lc)
3226 {
3227         net_config_t *config=&lc->net_conf;
3228         lp_config_set_int(lc->config,"net","download_bw",config->download_bw);
3229         lp_config_set_int(lc->config,"net","upload_bw",config->upload_bw);
3230
3231         if (config->stun_server!=NULL)
3232                 lp_config_set_string(lc->config,"net","stun_server",config->stun_server);
3233         if (config->nat_address!=NULL)
3234                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
3235         lp_config_set_int(lc->config,"net","firewall_policy",config->firewall_policy);
3236         lp_config_set_int(lc->config,"net","mtu",config->mtu);
3237         if (lc->net_conf.stun_server!=NULL)
3238                 ms_free(lc->net_conf.stun_server);
3239 }
3240
3241
3242 void sip_config_uninit(LinphoneCore *lc)
3243 {
3244         MSList *elem;
3245         int i;
3246         sip_config_t *config=&lc->sip_conf;
3247         lp_config_set_int(lc->config,"sip","sip_port",config->sip_port);
3248         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
3249         lp_config_set_string(lc->config,"sip","contact",config->contact);
3250         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
3251         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
3252         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
3253         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
3254         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
3255
3256         lp_config_set_int(lc->config,"sip","default_proxy",linphone_core_get_default_proxy(lc,NULL));
3257
3258         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
3259                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
3260                 linphone_proxy_config_write_to_config_file(lc->config,cfg,i);
3261                 linphone_proxy_config_edit(cfg);        /* to unregister */
3262         }
3263
3264         if (lc->sal){
3265             int i;
3266                 for (i=0;i<20;i++){
3267                         sal_iterate(lc->sal);
3268 #ifndef WIN32
3269                         usleep(100000);
3270 #else
3271                         Sleep(100);
3272 #endif
3273                 }
3274         }
3275
3276         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
3277         ms_list_free(config->proxies);
3278         config->proxies=NULL;
3279
3280         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
3281
3282         for(elem=lc->auth_info,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
3283                 LinphoneAuthInfo *ai=(LinphoneAuthInfo*)(elem->data);
3284                 linphone_auth_info_write_config(lc->config,ai,i);
3285         }
3286         linphone_auth_info_write_config(lc->config,NULL,i); /* mark the end */
3287         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
3288         ms_list_free(lc->auth_info);
3289         lc->auth_info=NULL;
3290         sal_uninit(lc->sal);
3291         lc->sal=NULL;
3292 }
3293
3294 void rtp_config_uninit(LinphoneCore *lc)
3295 {
3296         rtp_config_t *config=&lc->rtp_conf;
3297         lp_config_set_int(lc->config,"rtp","audio_rtp_port",config->audio_rtp_port);
3298         lp_config_set_int(lc->config,"rtp","video_rtp_port",config->video_rtp_port);
3299         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
3300         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
3301         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
3302 }
3303
3304 void sound_config_uninit(LinphoneCore *lc)
3305 {
3306         sound_config_t *config=&lc->sound_conf;
3307         ms_free(config->cards);
3308
3309         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
3310
3311         if (config->local_ring) ms_free(config->local_ring);
3312         if (config->remote_ring) ms_free(config->remote_ring);
3313         ms_snd_card_manager_destroy();
3314 }
3315
3316 void video_config_uninit(LinphoneCore *lc)
3317 {
3318         lp_config_set_int(lc->config,"video","enabled",linphone_core_video_enabled(lc));
3319         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
3320         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
3321         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
3322         lp_config_set_int(lc->config,"video","show_local",linphone_core_video_preview_enabled(lc));
3323         lp_config_set_int(lc->config,"video","self_view",linphone_core_self_view_enabled(lc));
3324 }
3325
3326 void codecs_config_uninit(LinphoneCore *lc)
3327 {
3328         PayloadType *pt;
3329         codecs_config_t *config=&lc->codecs_conf;
3330         MSList *node;
3331         char key[50];
3332         int index;
3333         index=0;
3334         for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
3335                 pt=(PayloadType*)(node->data);
3336                 sprintf(key,"audio_codec_%i",index);
3337                 lp_config_set_string(lc->config,key,"mime",pt->mime_type);
3338                 lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
3339                 lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
3340                 index++;
3341         }
3342         index=0;
3343         for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
3344                 pt=(PayloadType*)(node->data);
3345                 sprintf(key,"video_codec_%i",index);
3346                 lp_config_set_string(lc->config,key,"mime",pt->mime_type);
3347                 lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
3348                 lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
3349                 lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
3350                 index++;
3351         }
3352 }
3353
3354 void ui_config_uninit(LinphoneCore* lc)
3355 {
3356         if (lc->friends){
3357                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
3358                 ms_list_free(lc->friends);
3359                 lc->friends=NULL;
3360         }
3361 }
3362
3363 /**
3364  * Returns the LpConfig object used to manage the storage (config) file.
3365  *
3366  * @ingroup misc
3367  * The application can use the LpConfig object to insert its own private
3368  * sections and pairs of key=value in the configuration file.
3369  *
3370 **/
3371 LpConfig *linphone_core_get_config(LinphoneCore *lc){
3372         return lc->config;
3373 }
3374
3375 static void linphone_core_uninit(LinphoneCore *lc)
3376 {
3377         if (lc->call){
3378                 int i;
3379                 linphone_core_terminate_call(lc,NULL);
3380                 for(i=0;i<10;++i){
3381 #ifndef WIN32
3382                         usleep(50000);
3383 #else
3384                         Sleep(50);
3385 #endif
3386                         linphone_core_iterate(lc);
3387                 }
3388         }
3389         if (lc->friends)
3390                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
3391         gstate_new_state(lc, GSTATE_POWER_SHUTDOWN, NULL);
3392 #ifdef VIDEO_ENABLED
3393         if (lc->previewstream!=NULL){
3394                 video_preview_stop(lc->previewstream);
3395                 lc->previewstream=NULL;
3396         }
3397 #endif
3398         /* save all config */
3399         net_config_uninit(lc);
3400         sip_config_uninit(lc);
3401         rtp_config_uninit(lc);
3402         sound_config_uninit(lc);
3403         video_config_uninit(lc);
3404         codecs_config_uninit(lc);
3405         ui_config_uninit(lc);
3406         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
3407         lp_config_destroy(lc->config);
3408         lc->config = NULL; /* Mark the config as NULL to block further calls */
3409         sip_setup_unregister_all();
3410
3411         linphone_core_free_payload_types();
3412
3413         ortp_exit();
3414         gstate_new_state(lc, GSTATE_POWER_OFF, NULL);
3415 }
3416
3417 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable){
3418         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
3419         // second get the list of available proxies
3420         const MSList *elem=linphone_core_get_proxy_config_list(lc);
3421         for(;elem!=NULL;elem=elem->next){
3422                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3423                 if (linphone_proxy_config_register_enabled(cfg) ) {
3424                         if (!isReachable) {
3425                                 cfg->registered=0;
3426                         }else{
3427                                 cfg->commit=TRUE;
3428                         }
3429                 }
3430         }
3431         lc->network_reachable=isReachable;
3432 }
3433
3434 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
3435         //first disable automatic mode
3436         if (lc->auto_net_state_mon) {
3437                 ms_message("Disabling automatic network state monitoring");
3438                 lc->auto_net_state_mon=FALSE;
3439         }
3440         set_network_reachable(lc,isReachable);
3441 }
3442 /**
3443  * Destroys a LinphoneCore
3444  *
3445  * @ingroup initializing
3446 **/
3447 void linphone_core_destroy(LinphoneCore *lc){
3448         linphone_core_uninit(lc);
3449         ms_free(lc);
3450 }
3451