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 #define _GNU_SOURCE
  21
  22 #include "linphonecore.h"
  23 #include "sipsetup.h"
  24 #include "lpconfig.h"
  25 #include "private.h"
  26
  27 #include <math.h>
  28 #include <ortp/telephonyevents.h>
  29 #include <ortp/zrtp.h>
  30 #include "mediastreamer2/mediastream.h"
  31 #include "mediastreamer2/mseventqueue.h"
  32 #include "mediastreamer2/msvolume.h"
  33 #include "mediastreamer2/msequalizer.h"
  34 #include "mediastreamer2/dtmfgen.h"
  35
  36 #ifdef INET6
  37 #ifndef WIN32
  38 #include <netdb.h>
  39 #endif
  40 #endif
  41
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #include "liblinphone_gitversion.h"
  45 #else
  46 #ifndef LIBLINPHONE_GIT_VERSION
  47 #define LIBLINPHONE_GIT_VERSION "unknown"
  48 #endif
  49 #endif
  50
  51
  52 /*#define UNSTANDART_GSM_11K 1*/
  53
  54 #define ROOT_CA_FILE PACKAGE_DATA_DIR "/linphone/rootca.pem"
  55
  56 static const char *liblinphone_version=
  57 #ifdef LIBLINPHONE_GIT_VERSION
  58         LIBLINPHONE_GIT_VERSION
  59 #else
  60         LIBLINPHONE_VERSION
  61 #endif
  62 ;
  63 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
  64 static void linphone_core_run_hooks(LinphoneCore *lc);
  65 static void linphone_core_free_hooks(LinphoneCore *lc);
  66
  67 #include "enum.h"
  68 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
  69 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
  70
  71 /* relative path where is stored local ring*/
  72 #define LOCAL_RING "rings/oldphone.wav"
  73 /* same for remote ring (ringback)*/
  74 #define REMOTE_RING "ringback.wav"
  75 #define HOLD_MUSIC "rings/toy-mono.wav"
  76
  77
  78 extern SalCallbacks linphone_sal_callbacks;
  79
  80 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
  81 {
  82   obj->_func=func;
  83   obj->_user_data=ud;
  84 }
  85
  86 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
  87         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
  88         return 0;
  89 }
  90
  91
  92 /*prevent a gcc bug with %c*/
  93 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
  94 #if !defined(_WIN32_WCE)
  95         return strftime(s, max, fmt, tm);
  96 #else
  97         return 0;
  98         /*FIXME*/
  99 #endif /*_WIN32_WCE*/
 100 }
 101
 102 static void set_call_log_date(LinphoneCallLog *cl, time_t start_time){
 103         struct tm loctime;
 104 #ifdef WIN32
 105 #if !defined(_WIN32_WCE)
 106         loctime=*localtime(&start_time);
 107         /*FIXME*/
 108 #endif /*_WIN32_WCE*/
 109 #else
 110         localtime_r(&start_time,&loctime);
 111 #endif
 112         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",&loctime);
 113 }
 114
 115 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 116         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 117         cl->dir=call->dir;
 118         cl->start_date_time=call->start_time;
 119         set_call_log_date(cl,cl->start_date_time);
 120         cl->from=from;
 121         cl->to=to;
 122     cl->status=LinphoneCallAborted; /*default status*/
 123         return cl;
 124 }
 125
 126 void call_logs_write_to_config_file(LinphoneCore *lc){
 127         MSList *elem;
 128         char logsection[32];
 129         int i;
 130         char *tmp;
 131         LpConfig *cfg=lc->config;
 132
 133         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
 134
 135         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
 136                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
 137                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 138                 lp_config_clean_section(cfg,logsection);
 139                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
 140                 lp_config_set_int(cfg,logsection,"status",cl->status);
 141                 tmp=linphone_address_as_string(cl->from);
 142                 lp_config_set_string(cfg,logsection,"from",tmp);
 143                 ms_free(tmp);
 144                 tmp=linphone_address_as_string(cl->to);
 145                 lp_config_set_string(cfg,logsection,"to",tmp);
 146                 ms_free(tmp);
 147                 if (cl->start_date_time)
 148                         lp_config_set_int64(cfg,logsection,"start_date_time",(int64_t)cl->start_date_time);
 149                 else lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
 150                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
 151                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
 152                 lp_config_set_float(cfg,logsection,"quality",cl->quality);
 153                 lp_config_set_int(cfg,logsection,"video_enabled", cl->video_enabled);
 154                 lp_config_set_string(cfg,logsection,"call_id",cl->call_id);
 155         }
 156         for(;i<lc->max_call_logs;++i){
 157                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 158                 lp_config_clean_section(cfg,logsection);
 159         }
 160 }
 161
 162 static time_t string_to_time(const char *date){
 163 #ifndef WIN32
 164         struct tm tmtime={0};
 165         strptime(date,"%c",&tmtime);
 166         return mktime(&tmtime);
 167 #else
 168         return 0;
 169 #endif
 170 }
 171
 172 static void call_logs_read_from_config_file(LinphoneCore *lc){
 173         char logsection[32];
 174         int i;
 175         const char *tmp;
 176         uint64_t sec;
 177         LpConfig *cfg=lc->config;
 178         for(i=0;;++i){
 179                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 180                 if (lp_config_has_section(cfg,logsection)){
 181                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 182                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
 183                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
 184                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
 185                         if (tmp) cl->from=linphone_address_new(tmp);
 186                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
 187                         if (tmp) cl->to=linphone_address_new(tmp);
 188                         sec=lp_config_get_int64(cfg,logsection,"start_date_time",0);
 189                         if (sec) {
 190                                 /*new call log format with date expressed in seconds */
 191                                 cl->start_date_time=(time_t)sec;
 192                                 set_call_log_date(cl,cl->start_date_time);
 193                         }else{
 194                                 tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
 195                                 if (tmp) {
 196                                         strncpy(cl->start_date,tmp,sizeof(cl->start_date));
 197                                         cl->start_date_time=string_to_time(cl->start_date);
 198                                 }
 199                         }
 200                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
 201                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
 202                         if (tmp) cl->refkey=ms_strdup(tmp);
 203                         cl->quality=lp_config_get_float(cfg,logsection,"quality",-1);
 204                         cl->video_enabled=lp_config_get_int(cfg,logsection,"video_enabled",0);
 205                         cl->call_id=lp_config_get_string(cfg,logsection,"call_id",NULL);
 206                         if(cl->call_id) cl->call_id=ms_strdup(cl->call_id);
 207                         lc->call_logs=ms_list_append(lc->call_logs,cl);
 208                 }else break;
 209         }
 210 }
 211
 212
 213
 214 /**
 215  * @addtogroup call_logs
 216  * @{
 217 **/
 218
 219 /**
 220  * Returns a human readable string describing the call.
 221  *
 222  * @note: the returned char* must be freed by the application (use ms_free()).
 223 **/
 224 char * linphone_call_log_to_str(LinphoneCallLog *cl){
 225         char *status;
 226         char *tmp;
 227         char *from=linphone_address_as_string (cl->from);
 228         char *to=linphone_address_as_string (cl->to);
 229         switch(cl->status){
 230                 case LinphoneCallAborted:
 231                         status=_("aborted");
 232                         break;
 233                 case LinphoneCallSuccess:
 234                         status=_("completed");
 235                         break;
 236                 case LinphoneCallMissed:
 237                         status=_("missed");
 238                         break;
 239                 default:
 240                         status="unknown";
 241         }
 242         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
 243                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
 244                         cl->start_date,
 245                         from,
 246                         to,
 247                         status,
 248                         cl->duration/60,
 249                         cl->duration%60);
 250         ms_free(from);
 251         ms_free(to);
 252         return tmp;
 253 }
 254
 255 /**
 256  * Returns RTP statistics computed locally regarding the call.
 257  *
 258 **/
 259 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
 260         return &cl->local_stats;
 261 }
 262
 263 /**
 264  * Returns RTP statistics computed by remote end and sent back via RTCP.
 265  *
 266  * @note Not implemented yet.
 267 **/
 268 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
 269         return &cl->remote_stats;
 270 }
 271
 272 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
 273         cl->user_pointer=up;
 274 }
 275
 276 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
 277         return cl->user_pointer;
 278 }
 279
 280
 281
 282 /**
 283  * Associate a persistent reference key to the call log.
 284  *
 285  * The reference key can be for example an id to an external database.
 286  * It is stored in the config file, thus can survive to process exits/restarts.
 287  *
 288 **/
 289 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
 290         if (cl->refkey!=NULL){
 291                 ms_free(cl->refkey);
 292                 cl->refkey=NULL;
 293         }
 294         if (refkey) cl->refkey=ms_strdup(refkey);
 295 }
 296
 297 /**
 298  * Get the persistent reference key associated to the call log.
 299  *
 300  * The reference key can be for example an id to an external database.
 301  * It is stored in the config file, thus can survive to process exits/restarts.
 302  *
 303 **/
 304 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
 305         return cl->refkey;
 306 }
 307
 308 /** @} */
 309
 310 void linphone_call_log_destroy(LinphoneCallLog *cl){
 311         if (cl->from!=NULL) linphone_address_destroy(cl->from);
 312         if (cl->to!=NULL) linphone_address_destroy(cl->to);
 313         if (cl->refkey!=NULL) ms_free(cl->refkey);
 314         if (cl->call_id) ms_free((void*)cl->call_id);
 315         ms_free(cl);
 316 }
 317
 318 /**
 319  * Returns TRUE if the LinphoneCall asked to autoanswer
 320  *
 321 **/
 322 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
 323         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
 324         if(call)
 325                 return sal_call_autoanswer_asked(call->op);
 326         else
 327                 return FALSE;
 328 }
 329
 330 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
 331         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
 332         if (call)  return linphone_call_get_duration(call);
 333         return -1;
 334 }
 335
 336 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
 337         LinphoneCall *call=linphone_core_get_current_call(lc);
 338         if (call==NULL) return NULL;
 339         return linphone_call_get_remote_address(call);
 340 }
 341
 342 /**
 343  * Enable logs in supplied FILE*.
 344  *
 345  * @ingroup misc
 346  *
 347  * @param file a C FILE* where to fprintf logs. If null stdout is used.
 348  *
 349 **/
 350 void linphone_core_enable_logs(FILE *file){
 351         if (file==NULL) file=stdout;
 352         ortp_set_log_file(file);
 353         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 354 }
 355
 356 /**
 357  * Enable logs through the user's supplied log callback.
 358  *
 359  * @ingroup misc
 360  *
 361  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
 362  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
 363  *
 364 **/
 365 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
 366         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 367         ortp_set_log_handler(logfunc);
 368 }
 369
 370 /**
 371  * Entirely disable logging.
 372  *
 373  * @ingroup misc
 374 **/
 375 void linphone_core_disable_logs(){
 376         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
 377 }
 378
 379
 380 static void net_config_read (LinphoneCore *lc)
 381 {
 382         int tmp;
 383         const char *tmpstr;
 384         LpConfig *config=lc->config;
 385
 386         lc->net_conf.nat_address_ip = NULL;
 387         tmp=lp_config_get_int(config,"net","download_bw",0);
 388         linphone_core_set_download_bandwidth(lc,tmp);
 389         tmp=lp_config_get_int(config,"net","upload_bw",0);
 390         linphone_core_set_upload_bandwidth(lc,tmp);
 391         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
 392         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
 393         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
 394         linphone_core_set_nat_address(lc,tmpstr);
 395         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
 396         linphone_core_set_firewall_policy(lc,tmp);
 397         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
 398         lc->net_conf.nat_sdp_only=tmp;
 399         tmp=lp_config_get_int(lc->config,"net","mtu",0);
 400         linphone_core_set_mtu(lc,tmp);
 401         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 402         linphone_core_set_download_ptime(lc,tmp);
 403
 404 }
 405
 406 static void build_sound_devices_table(LinphoneCore *lc){
 407         const char **devices;
 408         const char **old;
 409         int ndev;
 410         int i;
 411         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
 412         ndev=ms_list_size(elem);
 413         devices=ms_malloc((ndev+1)*sizeof(const char *));
 414         for (i=0;elem!=NULL;elem=elem->next,i++){
 415                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
 416         }
 417         devices[ndev]=NULL;
 418         old=lc->sound_conf.cards;
 419         lc->sound_conf.cards=devices;
 420         if (old!=NULL) ms_free(old);
 421 }
 422
 423 static void sound_config_read(LinphoneCore *lc)
 424 {
 425         int tmp;
 426         const char *tmpbuf;
 427         const char *devid;
 428 #ifdef __linux
 429         /*alsadev let the user use custom alsa device within linphone*/
 430         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
 431         if (devid){
 432                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
 433                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
 434         }
 435         tmp=lp_config_get_int(lc->config,"sound","alsa_forced_rate",-1);
 436         if (tmp>0) ms_alsa_card_set_forced_sample_rate(tmp);
 437 #endif
 438         /* retrieve all sound devices */
 439         build_sound_devices_table(lc);
 440
 441         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
 442         linphone_core_set_playback_device(lc,devid);
 443
 444         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
 445         linphone_core_set_ringer_device(lc,devid);
 446
 447         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
 448         linphone_core_set_capture_device(lc,devid);
 449
 450 /*
 451         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
 452         linphone_core_set_play_level(lc,tmp);
 453         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
 454         linphone_core_set_ring_level(lc,tmp);
 455         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
 456         linphone_core_set_rec_level(lc,tmp);
 457         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
 458         linphone_core_set_sound_source(lc,tmpbuf[0]);
 459 */
 460
 461         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 462         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
 463         if (ortp_file_exist(tmpbuf)==-1) {
 464                 ms_warning("%s does not exist",tmpbuf);
 465                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 466         }
 467         if (strstr(tmpbuf,".wav")==NULL){
 468                 /* it currently uses old sound files, so replace them */
 469                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 470         }
 471         linphone_core_set_ring(lc,tmpbuf);
 472
 473         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 474         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
 475         if (ortp_file_exist(tmpbuf)==-1){
 476                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 477         }
 478         if (strstr(tmpbuf,".wav")==NULL){
 479                 /* it currently uses old sound files, so replace them */
 480                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 481         }
 482         linphone_core_set_ringback(lc,tmpbuf);
 483
 484         linphone_core_set_play_file(lc,lp_config_get_string(lc->config,"sound","hold_music",PACKAGE_SOUND_DIR "/" HOLD_MUSIC));
 485         check_sound_device(lc);
 486         lc->sound_conf.latency=0;
 487 #ifndef __ios
 488     tmp=TRUE;
 489 #else
 490     tmp=FALSE; /* on iOS we have builtin echo cancellation.*/
 491 #endif
 492     tmp=lp_config_get_int(lc->config,"sound","echocancellation",tmp);
 493         linphone_core_enable_echo_cancellation(lc,tmp);
 494         linphone_core_enable_echo_limiter(lc,
 495                 lp_config_get_int(lc->config,"sound","echolimiter",0));
 496         linphone_core_enable_agc(lc,
 497                 lp_config_get_int(lc->config,"sound","agc",0));
 498
 499         linphone_core_set_playback_gain_db (lc,lp_config_get_float(lc->config,"sound","playback_gain_db",0));
 500         linphone_core_set_mic_gain_db (lc,lp_config_get_float(lc->config,"sound","mic_gain_db",0));
 501
 502         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
 503
 504         /*just parse requested stream feature once at start to print out eventual errors*/
 505         linphone_core_get_audio_features(lc);
 506 }
 507
 508 static void sip_config_read(LinphoneCore *lc)
 509 {
 510         char *contact;
 511         const char *tmpstr;
 512         LCSipTransports tr;
 513         int i,tmp;
 514         int ipv6;
 515         int random_port;
 516
 517         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
 518         linphone_core_set_use_info_for_dtmf(lc,tmp);
 519
 520         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
 521                 sal_use_session_timers(lc->sal,200);
 522         }
 523
 524         sal_use_rport(lc->sal,lp_config_get_int(lc->config,"sip","use_rport",1));
 525         sal_use_101(lc->sal,lp_config_get_int(lc->config,"sip","use_101",1));
 526         sal_reuse_authorization(lc->sal, lp_config_get_int(lc->config,"sip","reuse_authorization",0));
 527         sal_expire_old_registration_contacts(lc->sal,lp_config_get_int(lc->config,"sip","expire_old_registration_contacts",0));
 528
 529         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",1);
 530         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
 531
 532         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
 533         if (ipv6==-1){
 534                 ipv6=0;
 535         }
 536         linphone_core_enable_ipv6(lc,ipv6);
 537         memset(&tr,0,sizeof(tr));
 538
 539         tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",0);
 540         tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
 541         tr.tls_port=lp_config_get_int(lc->config,"sip","sip_tls_port",0);
 542
 543         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)==1)
 544                 random_port=(0xDFFF&random())+1024;
 545         else random_port=0;
 546
 547         if (tr.udp_port==0 && tr.tcp_port==0 && tr.tls_port==0){
 548                 tr.udp_port=5060;
 549         }
 550
 551         if (tr.udp_port>0 && random_port){
 552                 tr.udp_port=random_port;
 553                 tr.tls_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 554         }else if (tr.tcp_port>0 && random_port){
 555                 tr.tcp_port=random_port;
 556                 tr.tls_port=tr.udp_port=0; /*make sure only one transport is active at a time*/
 557         }else if (tr.tls_port>0 && random_port){
 558                 tr.tls_port=random_port;
 559                 tr.udp_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 560         }
 561
 562 #ifdef __linux
 563         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", "/etc/ssl/certs"));
 564 #else
 565         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", ROOT_CA_FILE));
 566 #endif
 567         linphone_core_verify_server_certificates(lc,lp_config_get_int(lc->config,"sip","verify_server_certs",TRUE));
 568         /*setting the dscp must be done before starting the transports, otherwise it is not taken into effect*/
 569         sal_set_dscp(lc->sal,linphone_core_get_sip_dscp(lc));
 570         /*start listening on ports*/
 571         linphone_core_set_sip_transports(lc,&tr);
 572
 573         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
 574         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
 575                 const char *hostname=NULL;
 576                 const char *username=NULL;
 577 #ifdef HAVE_GETENV
 578                 hostname=getenv("HOST");
 579                 username=getenv("USER");
 580                 if (hostname==NULL) hostname=getenv("HOSTNAME");
 581 #endif /*HAVE_GETENV*/
 582                 if (hostname==NULL)
 583                         hostname="unknown-host";
 584                 if (username==NULL){
 585                         username="toto";
 586                 }
 587                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
 588                 linphone_core_set_primary_contact(lc,contact);
 589                 ms_free(contact);
 590         }
 591
 592         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
 593         linphone_core_set_guess_hostname(lc,tmp);
 594
 595
 596         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",30);
 597         linphone_core_set_inc_timeout(lc,tmp);
 598
 599         tmp=lp_config_get_int(lc->config,"sip","in_call_timeout",0);
 600         linphone_core_set_in_call_timeout(lc,tmp);
 601
 602         /* get proxies config */
 603         for(i=0;; i++){
 604                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 605                 if (cfg!=NULL){
 606                         linphone_core_add_proxy_config(lc,cfg);
 607                 }else{
 608                         break;
 609                 }
 610         }
 611         /* get the default proxy */
 612         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 613         linphone_core_set_default_proxy_index(lc,tmp);
 614
 615         /* read authentication information */
 616         for(i=0;; i++){
 617                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 618                 if (ai!=NULL){
 619                         linphone_core_add_auth_info(lc,ai);
 620                         linphone_auth_info_destroy(ai);
 621                 }else{
 622                         break;
 623                 }
 624         }
 625         /*this is to filter out unsupported encryption schemes*/
 626         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 627
 628         /*for tuning or test*/
 629         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 630         lc->sip_conf.register_only_when_network_is_up=
 631                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 632         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 633         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
 634         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
 635         sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
 636         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
 637         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
 638         sal_use_dates(lc->sal,lp_config_get_int(lc->config,"sip","put_date",0));
 639 }
 640
 641 static void rtp_config_read(LinphoneCore *lc)
 642 {
 643         int min_port, max_port;
 644         int jitt_comp;
 645         int nortp_timeout;
 646         bool_t rtp_no_xmit_on_audio_mute;
 647         bool_t adaptive_jitt_comp_enabled;
 648
 649         if (lp_config_get_range(lc->config, "rtp", "audio_rtp_port", &min_port, &max_port, 7078, 7078) == TRUE) {
 650                 if (min_port <= 0) min_port = 1;
 651                 if (max_port > 65535) max_port = 65535;
 652                 linphone_core_set_audio_port_range(lc, min_port, max_port);
 653         } else {
 654                 min_port = lp_config_get_int(lc->config, "rtp", "audio_rtp_port", 7078);
 655                 linphone_core_set_audio_port(lc, min_port);
 656         }
 657
 658         if (lp_config_get_range(lc->config, "rtp", "video_rtp_port", &min_port, &max_port, 9078, 9078) == TRUE) {
 659                 if (min_port <= 0) min_port = 1;
 660                 if (max_port > 65535) max_port = 65535;
 661                 linphone_core_set_video_port_range(lc, min_port, max_port);
 662         } else {
 663                 min_port = lp_config_get_int(lc->config, "rtp", "video_rtp_port", 9078);
 664                 linphone_core_set_video_port(lc, min_port);
 665         }
 666
 667         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 668         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 669         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 670         if (jitt_comp==0) jitt_comp=60;
 671         linphone_core_set_video_jittcomp(lc,jitt_comp);
 672         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 673         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 674         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
 675         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
 676         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
 677         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 678         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
 679         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 680 }
 681
 682 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 683         PayloadType *candidate=NULL;
 684         int i;
 685         PayloadType *it;
 686         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 687                 it=rtp_profile_get_payload(prof,i);
 688                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 689                         && (clock_rate==it->clock_rate || clock_rate<=0)
 690                         && (channels==it->channels || channels<=0) ){
 691                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 692                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 693                                 /*exact match*/
 694                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 695                                 return it;
 696                         }else {
 697                                 if (candidate){
 698                                         if (it->recv_fmtp==NULL) candidate=it;
 699                                 }else candidate=it;
 700                         }
 701                 }
 702         }
 703         if (candidate && recv_fmtp){
 704                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 705         }
 706         return candidate;
 707 }
 708
 709 static bool_t get_codec(LinphoneCore *lc, const char* type, int index, PayloadType **ret){
 710         char codeckey[50];
 711         const char *mime,*fmtp;
 712         int rate,channels,enabled;
 713         PayloadType *pt;
 714         LpConfig *config=lc->config;
 715
 716         *ret=NULL;
 717         snprintf(codeckey,50,"%s_%i",type,index);
 718         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 719         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 720
 721         rate=lp_config_get_int(config,codeckey,"rate",8000);
 722         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 723         channels=lp_config_get_int(config,codeckey,"channels",0);
 724         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 725         pt=find_payload(lc->default_profile,mime,rate,channels,fmtp);
 726         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 727         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 728         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 729                         mime,rate,fmtp ? fmtp : "");
 730         *ret=pt;
 731         return TRUE;
 732 }
 733
 734 #define RANK_END 10000
 735
 736 typedef struct codec_desc{
 737         const char *name;
 738         int rate;
 739 }codec_desc_t;
 740
 741 static codec_desc_t codec_pref_order[]={
 742         {"SILK", 16000},
 743         {"speex", 16000},
 744         {"speex", 8000},
 745         {"pcmu",8000},
 746         {"pcma",8000},
 747         {"VP8",90000},
 748         {"H264",90000},
 749         {"MP4V-ES",90000},
 750         {NULL,0}
 751 };
 752
 753 static int find_codec_rank(const char *mime, int clock_rate){
 754         int i;
 755         for(i=0;codec_pref_order[i].name!=NULL;++i){
 756                 if (strcasecmp(codec_pref_order[i].name,mime)==0 && clock_rate==codec_pref_order[i].rate)
 757                         return i;
 758         }
 759         return RANK_END;
 760 }
 761
 762 static int codec_compare(const PayloadType *a, const PayloadType *b){
 763         int ra,rb;
 764         ra=find_codec_rank(a->mime_type,a->clock_rate);
 765         rb=find_codec_rank(b->mime_type,b->clock_rate);
 766         if (ra>rb) return 1;
 767         if (ra<rb) return -1;
 768         return 0;
 769 }
 770
 771 static MSList *add_missing_codecs(LinphoneCore *lc, SalStreamType mtype, MSList *l){
 772         int i;
 773         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 774                 PayloadType *pt=rtp_profile_get_payload(lc->default_profile,i);
 775                 if (pt){
 776                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 777                                 pt=NULL;
 778                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 779                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 780                                 pt=NULL;
 781                         }
 782                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 783                                 if (ms_list_find(l,pt)==NULL){
 784                                         /*unranked codecs are disabled by default*/
 785                                         if (find_codec_rank(pt->mime_type, pt->clock_rate)!=RANK_END){
 786                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 787                                         }
 788                                         ms_message("Adding new codec %s/%i with fmtp %s",
 789                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 790                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 791                                 }
 792                         }
 793                 }
 794         }
 795         return l;
 796 }
 797
 798 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 799         MSList *elem;
 800         for (elem=l;elem!=NULL;elem=elem->next){
 801                 PayloadType *ept=(PayloadType*)elem->data;
 802                 if (pt==ept)
 803                         return l;
 804         }
 805         l=ms_list_append(l,pt);
 806         return l;
 807 }
 808
 809 static void codecs_config_read(LinphoneCore *lc)
 810 {
 811         int i;
 812         PayloadType *pt;
 813         MSList *audio_codecs=NULL;
 814         MSList *video_codecs=NULL;
 815         for (i=0;get_codec(lc,"audio_codec",i,&pt);i++){
 816                 if (pt){
 817                         if (!ms_filter_codec_supported(pt->mime_type)){
 818                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 819                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 820                 }
 821         }
 822         audio_codecs=add_missing_codecs(lc,SalAudio,audio_codecs);
 823         for (i=0;get_codec(lc,"video_codec",i,&pt);i++){
 824                 if (pt){
 825                         if (!ms_filter_codec_supported(pt->mime_type)){
 826                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 827                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 828                 }
 829         }
 830         video_codecs=add_missing_codecs(lc,SalVideo,video_codecs);
 831         linphone_core_set_audio_codecs(lc,audio_codecs);
 832         linphone_core_set_video_codecs(lc,video_codecs);
 833         linphone_core_update_allocated_audio_bandwidth(lc);
 834 }
 835
 836 static void build_video_devices_table(LinphoneCore *lc){
 837         const MSList *elem;
 838         int i;
 839         int ndev;
 840         const char **devices;
 841         if (lc->video_conf.cams)
 842                 ms_free(lc->video_conf.cams);
 843         /* retrieve all video devices */
 844         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 845         ndev=ms_list_size(elem);
 846         devices=ms_malloc((ndev+1)*sizeof(const char *));
 847         for (i=0;elem!=NULL;elem=elem->next,i++){
 848                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 849         }
 850         devices[ndev]=NULL;
 851         lc->video_conf.cams=devices;
 852 }
 853
 854 static void video_config_read(LinphoneCore *lc){
 855 #ifdef VIDEO_ENABLED
 856         int capture, display, self_view;
 857 #endif
 858         const char *str;
 859 #ifdef VIDEO_ENABLED
 860         LinphoneVideoPolicy vpol;
 861         memset(&vpol, 0, sizeof(LinphoneVideoPolicy));
 862 #endif
 863         build_video_devices_table(lc);
 864
 865         str=lp_config_get_string(lc->config,"video","device",NULL);
 866         if (str && str[0]==0) str=NULL;
 867         linphone_core_set_video_device(lc,str);
 868
 869         linphone_core_set_preferred_video_size_by_name(lc,
 870                 lp_config_get_string(lc->config,"video","size","cif"));
 871
 872 #ifdef VIDEO_ENABLED
 873         capture=lp_config_get_int(lc->config,"video","capture",1);
 874         display=lp_config_get_int(lc->config,"video","display",1);
 875         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 876         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 877         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 878         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 879         if(lc->video_conf.displaytype)
 880                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 881
 882         linphone_core_enable_video(lc,capture,display);
 883         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 884         linphone_core_enable_self_view(lc,self_view);
 885         linphone_core_set_video_policy(lc,&vpol);
 886 #endif
 887 }
 888
 889 static void ui_config_read(LinphoneCore *lc)
 890 {
 891         LinphoneFriend *lf;
 892         int i;
 893         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 894                 linphone_core_add_friend(lc,lf);
 895         }
 896         call_logs_read_from_config_file(lc);
 897 }
 898
 899 /*
 900 static void autoreplier_config_init(LinphoneCore *lc)
 901 {
 902         autoreplier_config_t *config=&lc->autoreplier_conf;
 903         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 904         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 905         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 906         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 907         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 908         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 909 }
 910 */
 911
 912 bool_t linphone_core_tunnel_available(void){
 913 #ifdef TUNNEL_ENABLED
 914         return TRUE;
 915 #else
 916         return FALSE;
 917 #endif
 918 }
 919
 920 /**
 921  * Enable adaptive rate control (experimental feature, audio-only).
 922  *
 923  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
 924  * control the output bitrate of the encoders, so that we can adapt to the network conditions and
 925  * available bandwidth.
 926 **/
 927 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
 928         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
 929 }
 930
 931 /**
 932  * Returns whether adaptive rate control is enabled.
 933  *
 934  * See linphone_core_enable_adaptive_rate_control().
 935 **/
 936 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
 937         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
 938 }
 939
 940 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
 941         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
 942 }
 943
 944 /**
 945  * Sets maximum available download bandwidth
 946  *
 947  * @ingroup media_parameters
 948  *
 949  * This is IP bandwidth, in kbit/s.
 950  * This information is used signaled to other parties during
 951  * calls (within SDP messages) so that the remote end can have
 952  * sufficient knowledge to properly configure its audio & video
 953  * codec output bitrate to not overflow available bandwidth.
 954  *
 955  * @param lc the LinphoneCore object
 956  * @param bw the bandwidth in kbits/s, 0 for infinite
 957  */
 958 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
 959         lc->net_conf.download_bw=bw;
 960         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
 961 }
 962
 963 /**
 964  * Sets maximum available upload bandwidth
 965  *
 966  * @ingroup media_parameters
 967  *
 968  * This is IP bandwidth, in kbit/s.
 969  * This information is used by liblinphone together with remote
 970  * side available bandwidth signaled in SDP messages to properly
 971  * configure audio & video codec's output bitrate.
 972  *
 973  * @param lc the LinphoneCore object
 974  * @param bw the bandwidth in kbits/s, 0 for infinite
 975  */
 976 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
 977         lc->net_conf.upload_bw=bw;
 978         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
 979 }
 980
 981 /**
 982  * Retrieve the maximum available download bandwidth.
 983  *
 984  * @ingroup media_parameters
 985  *
 986  * This value was set by linphone_core_set_download_bandwidth().
 987  *
 988 **/
 989 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
 990         return lc->net_conf.download_bw;
 991 }
 992
 993 /**
 994  * Retrieve the maximum available upload bandwidth.
 995  *
 996  * @ingroup media_parameters
 997  *
 998  * This value was set by linphone_core_set_upload_bandwidth().
 999  *
1000 **/
1001 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
1002         return lc->net_conf.upload_bw;
1003 }
1004 /**
1005  * Set audio packetization time linphone expects to receive from peer
1006  */
1007 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
1008         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
1009 }
1010
1011 /**
1012  * Get audio packetization time linphone expects to receive from peer
1013  */
1014 int linphone_core_get_download_ptime(LinphoneCore *lc) {
1015         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
1016 }
1017
1018 /**
1019  * Set audio packetization time linphone will send (in absence of requirement from peer)
1020  * A value of 0 stands for the current codec default packetization time.
1021  *
1022 **/
1023 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
1024         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
1025 }
1026
1027 /**
1028  * Set audio packetization time linphone will send (in absence of requirement from peer)
1029  * A value of 0 stands for the current codec default packetization time.
1030  *
1031 **/
1032 int linphone_core_get_upload_ptime(LinphoneCore *lc){
1033         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
1034 }
1035
1036
1037
1038 /**
1039  * Returns liblinphone's version as a string.
1040  *
1041  * @ingroup misc
1042  *
1043 **/
1044 const char * linphone_core_get_version(void){
1045         return liblinphone_version;
1046 }
1047
1048 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1049         PayloadType *pt;
1050         pt=payload_type_clone(const_pt);
1051         if (number==-1){
1052                 /*look for a free number */
1053                 MSList *elem;
1054                 int i;
1055                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1056                         bool_t already_assigned=FALSE;
1057                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1058                                 PayloadType *it=(PayloadType*)elem->data;
1059                                 if (payload_type_get_number(it)==i){
1060                                         already_assigned=TRUE;
1061                                         break;
1062                                 }
1063                         }
1064                         if (!already_assigned){
1065                                 number=i;
1066                                 lc->dyn_pt=i+1;
1067                                 break;
1068                         }
1069                 }
1070                 if (number==-1){
1071                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1072                 }
1073         }
1074         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1075         payload_type_set_number(pt,number);
1076         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1077         rtp_profile_set_payload(lc->default_profile,number,pt);
1078         lc->payload_types=ms_list_append(lc->payload_types,pt);
1079 }
1080
1081 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1082         RtpProfile *prof=&av_profile;
1083         int i;
1084         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1085                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1086                 if (pt){
1087                         if (payload_type_get_number(pt)!=i){
1088                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1089                         }
1090                 }
1091         }
1092 }
1093
1094 static void linphone_core_free_payload_types(LinphoneCore *lc){
1095         rtp_profile_clear_all(lc->default_profile);
1096         rtp_profile_destroy(lc->default_profile);
1097         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1098         ms_list_free(lc->payload_types);
1099         lc->payload_types=NULL;
1100 }
1101
1102 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1103         lc->state=gstate;
1104         if (lc->vtable.global_state_changed){
1105                 lc->vtable.global_state_changed(lc,gstate,message);
1106         }
1107 }
1108 static void misc_config_read (LinphoneCore *lc) {
1109         LpConfig *config=lc->config;
1110     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1111     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1112 }
1113
1114
1115
1116
1117 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1118     const char *factory_config_path, void * userdata)
1119 {
1120         ms_message("Initializing LinphoneCore %s", linphone_core_get_version());
1121         memset (lc, 0, sizeof (LinphoneCore));
1122         lc->data=userdata;
1123         lc->ringstream_autorelease=TRUE;
1124
1125         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1126
1127         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1128         ortp_init();
1129         lc->dyn_pt=96;
1130         lc->default_profile=rtp_profile_new("default profile");
1131         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1132         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1133         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1134         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1135         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1136         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1137         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1138         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1139
1140 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1141         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1142          - to workaround potential packet losses
1143          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1144          */
1145         _linphone_core_configure_resolver();
1146 #endif
1147
1148 #ifdef ENABLE_NONSTANDARD_GSM
1149         {
1150                 PayloadType *pt;
1151                 pt=payload_type_clone(&payload_type_gsm);
1152                 pt->clock_rate=11025;
1153                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1154                 pt->clock_rate=22050;
1155                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1156                 payload_type_destroy(pt);
1157         }
1158 #endif
1159
1160 #ifdef VIDEO_ENABLED
1161         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1162         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1163         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1164         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1165         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1166         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1167         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1168         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1169         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1170 #endif
1171
1172         /*add all payload type for which we don't care about the number */
1173         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1174         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1175         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1176         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1177         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1178         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1179         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1180         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1181         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1182         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1183         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1184         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1185         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1186         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1187         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1188         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1189         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1190         linphone_core_handle_static_payloads(lc);
1191
1192         ms_init();
1193         /* create a mediastreamer2 event queue and set it as global */
1194         /* This allows to run event's callback in linphone_core_iterate() */
1195         lc->msevq=ms_event_queue_new();
1196         ms_set_global_event_queue(lc->msevq);
1197
1198         lc->config=lp_config_new(config_path);
1199         if (factory_config_path)
1200                 lp_config_read_file(lc->config,factory_config_path);
1201
1202         lc->sal=sal_init();
1203         sal_set_user_pointer(lc->sal,lc);
1204         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1205
1206         lc->network_last_check = 0;
1207         lc->network_last_status = FALSE;
1208
1209         sip_setup_register_all();
1210         sound_config_read(lc);
1211         net_config_read(lc);
1212         rtp_config_read(lc);
1213         codecs_config_read(lc);
1214         sip_config_read(lc); /* this will start eXosip*/
1215         video_config_read(lc);
1216         //autoreplier_config_init(&lc->autoreplier_conf);
1217         lc->presence_mode=LinphoneStatusOnline;
1218         misc_config_read(lc);
1219         ui_config_read(lc);
1220 #ifdef TUNNEL_ENABLED
1221         lc->tunnel=linphone_core_tunnel_new(lc);
1222         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1223 #endif
1224 #ifdef BUILD_UPNP
1225         lc->upnp = linphone_upnp_context_new(lc);
1226 #endif  //BUILD_UPNP
1227         if (lc->vtable.display_status)
1228                 lc->vtable.display_status(lc,_("Ready"));
1229         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1230         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1231 }
1232
1233 /**
1234  * Instanciates a LinphoneCore object.
1235  * @ingroup initializing
1236  *
1237  * The LinphoneCore object is the primary handle for doing all phone actions.
1238  * It should be unique within your application.
1239  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1240  * @param config_path a path to a config file. If it does not exists it will be created.
1241  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1242  *             become persistent over the life of the LinphoneCore object.
1243  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1244  * @param factory_config_path a path to a read-only config file that can be used to
1245  *        to store hard-coded preference such as proxy settings or internal preferences.
1246  *        The settings in this factory file always override the one in the normal config file.
1247  *        It is OPTIONAL, use NULL if unneeded.
1248  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1249  *        callbacks) using linphone_core_get_user_data().
1250  *
1251 **/
1252 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1253                                                 const char *config_path, const char *factory_config_path, void * userdata)
1254 {
1255         LinphoneCore *core=ms_new(LinphoneCore,1);
1256         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1257         return core;
1258 }
1259
1260 /**
1261  * Returns the list of available audio codecs.
1262  *
1263  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1264  * structure holding the codec information.
1265  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1266  * (such as the order of codecs).
1267 **/
1268 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1269 {
1270         return lc->codecs_conf.audio_codecs;
1271 }
1272
1273 /**
1274  * Returns the list of available video codecs.
1275  *
1276  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1277  * structure holding the codec information.
1278  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1279  * (such as the order of codecs).
1280 **/
1281 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1282 {
1283         return lc->codecs_conf.video_codecs;
1284 }
1285
1286 /**
1287  * Sets the local "from" identity.
1288  *
1289  * @ingroup proxies
1290  * This data is used in absence of any proxy configuration or when no
1291  * default proxy configuration is set. See LinphoneProxyConfig
1292 **/
1293 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1294 {
1295         LinphoneAddress *ctt;
1296
1297         if ((ctt=linphone_address_new(contact))==0) {
1298                 ms_error("Bad contact url: %s",contact);
1299                 return -1;
1300         }
1301         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1302         lc->sip_conf.contact=ms_strdup(contact);
1303         if (lc->sip_conf.guessed_contact!=NULL){
1304                 ms_free(lc->sip_conf.guessed_contact);
1305                 lc->sip_conf.guessed_contact=NULL;
1306         }
1307         linphone_address_destroy(ctt);
1308         return 0;
1309 }
1310
1311
1312 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1313 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1314         const char *ip;
1315         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1316             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1317                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1318                 return;
1319         }
1320 #ifdef BUILD_UPNP
1321         else if (lc->upnp != NULL && linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp &&
1322                         linphone_upnp_context_get_state(lc->upnp) == LinphoneUpnpStateOk) {
1323                 ip = linphone_upnp_context_get_external_ipaddress(lc->upnp);
1324                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1325                 return;
1326         }
1327 #endif  //BUILD_UPNP
1328         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1329                 return;
1330         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1331         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1332 }
1333
1334 static void update_primary_contact(LinphoneCore *lc){
1335         char *guessed=NULL;
1336         char tmp[LINPHONE_IPADDR_SIZE];
1337
1338         LinphoneAddress *url;
1339         if (lc->sip_conf.guessed_contact!=NULL){
1340                 ms_free(lc->sip_conf.guessed_contact);
1341                 lc->sip_conf.guessed_contact=NULL;
1342         }
1343         url=linphone_address_new(lc->sip_conf.contact);
1344         if (!url){
1345                 ms_error("Could not parse identity contact !");
1346                 url=linphone_address_new("sip:unknown@unkwownhost");
1347         }
1348         linphone_core_get_local_ip(lc, NULL, tmp);
1349         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1350                 ms_warning("Local loopback network only !");
1351                 lc->sip_conf.loopback_only=TRUE;
1352         }else lc->sip_conf.loopback_only=FALSE;
1353         linphone_address_set_domain(url,tmp);
1354         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1355         guessed=linphone_address_as_string(url);
1356         lc->sip_conf.guessed_contact=guessed;
1357         linphone_address_destroy(url);
1358 }
1359
1360 /**
1361  * Returns the default identity when no proxy configuration is used.
1362  *
1363  * @ingroup proxies
1364 **/
1365 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1366         char *identity;
1367
1368         if (lc->sip_conf.guess_hostname){
1369                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1370                         update_primary_contact(lc);
1371                 }
1372                 identity=lc->sip_conf.guessed_contact;
1373         }else{
1374                 identity=lc->sip_conf.contact;
1375         }
1376         return identity;
1377 }
1378
1379 /**
1380  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1381  *
1382  * @ingroup proxies
1383 **/
1384 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1385         lc->sip_conf.guess_hostname=val;
1386 }
1387
1388 /**
1389  * Returns TRUE if hostname part of primary contact is guessed automatically.
1390  *
1391  * @ingroup proxies
1392 **/
1393 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1394         return lc->sip_conf.guess_hostname;
1395 }
1396
1397 /**
1398  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1399  * instead of const char*
1400  *
1401  * @ingroup proxies
1402 **/
1403 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1404         return linphone_address_new(linphone_core_get_primary_contact(lc));
1405 }
1406
1407 /**
1408  * Sets the list of audio codecs.
1409  *
1410  * @ingroup media_parameters
1411  * The list is taken by the LinphoneCore thus the application should not free it.
1412  * This list is made of struct PayloadType describing the codec parameters.
1413 **/
1414 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1415 {
1416         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1417         lc->codecs_conf.audio_codecs=codecs;
1418         _linphone_core_codec_config_write(lc);
1419         return 0;
1420 }
1421
1422 /**
1423  * Sets the list of video codecs.
1424  *
1425  * @ingroup media_parameters
1426  * The list is taken by the LinphoneCore thus the application should not free it.
1427  * This list is made of struct PayloadType describing the codec parameters.
1428 **/
1429 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1430 {
1431         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1432         lc->codecs_conf.video_codecs=codecs;
1433         _linphone_core_codec_config_write(lc);
1434         return 0;
1435 }
1436
1437 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1438 {
1439         return lc->friends;
1440 }
1441
1442 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1443 {
1444         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1445 }
1446
1447 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1448 {
1449         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1450 }
1451
1452 /**
1453  * Returns the nominal audio jitter buffer size in milliseconds.
1454  *
1455  * @ingroup media_parameters
1456 **/
1457 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1458 {
1459         return lc->rtp_conf.audio_jitt_comp;
1460 }
1461
1462 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1463 {
1464         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1465 }
1466
1467 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1468 {
1469         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1470 }
1471
1472 /**
1473  * Returns the nominal video jitter buffer size in milliseconds.
1474  *
1475  * @ingroup media_parameters
1476 **/
1477 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1478 {
1479         return lc->rtp_conf.video_jitt_comp;
1480 }
1481
1482 /**
1483  * Returns the UDP port used for audio streaming.
1484  *
1485  * @ingroup network_parameters
1486 **/
1487 int linphone_core_get_audio_port(const LinphoneCore *lc)
1488 {
1489         return lc->rtp_conf.audio_rtp_min_port;
1490 }
1491
1492 /**
1493  * Get the audio port range from which is randomly chosen the UDP port used for audio streaming.
1494  *
1495  * @ingroup network_parameters
1496  */
1497 void linphone_core_get_audio_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1498 {
1499         *min_port = lc->rtp_conf.audio_rtp_min_port;
1500         *max_port = lc->rtp_conf.audio_rtp_max_port;
1501 }
1502
1503 /**
1504  * Returns the UDP port used for video streaming.
1505  *
1506  * @ingroup network_parameters
1507 **/
1508 int linphone_core_get_video_port(const LinphoneCore *lc){
1509         return lc->rtp_conf.video_rtp_min_port;
1510 }
1511
1512 /**
1513  * Get the video port range from which is randomly chosen the UDP port used for video streaming.
1514  *
1515  * @ingroup network_parameters
1516  */
1517 void linphone_core_get_video_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1518 {
1519         *min_port = lc->rtp_conf.video_rtp_min_port;
1520         *max_port = lc->rtp_conf.video_rtp_max_port;
1521 }
1522
1523
1524 /**
1525  * Returns the value in seconds of the no-rtp timeout.
1526  *
1527  * @ingroup media_parameters
1528  * When no RTP or RTCP packets have been received for a while
1529  * LinphoneCore will consider the call is broken (remote end crashed or
1530  * disconnected from the network), and thus will terminate the call.
1531  * The no-rtp timeout is the duration above which the call is considered broken.
1532 **/
1533 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1534         return lc->rtp_conf.nortp_timeout;
1535 }
1536
1537 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1538         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1539 }
1540
1541 /**
1542  * Sets the nominal audio jitter buffer size in milliseconds.
1543  *
1544  * @ingroup media_parameters
1545 **/
1546 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1547 {
1548         lc->rtp_conf.audio_jitt_comp=value;
1549 }
1550
1551 /**
1552  * Sets the nominal video jitter buffer size in milliseconds.
1553  *
1554  * @ingroup media_parameters
1555 **/
1556 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1557 {
1558         lc->rtp_conf.video_jitt_comp=value;
1559 }
1560
1561 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1562         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1563 }
1564
1565 /**
1566  * Sets the UDP port used for audio streaming.
1567  *
1568  * @ingroup network_parameters
1569 **/
1570 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1571 {
1572         lc->rtp_conf.audio_rtp_min_port=lc->rtp_conf.audio_rtp_max_port=port;
1573 }
1574
1575 /**
1576  * Sets the UDP port range from which to randomly select the port used for audio streaming.
1577  */
1578 void linphone_core_set_audio_port_range(LinphoneCore *lc, int min_port, int max_port)
1579 {
1580         lc->rtp_conf.audio_rtp_min_port=min_port;
1581         lc->rtp_conf.audio_rtp_max_port=max_port;
1582 }
1583
1584 /**
1585  * Sets the UDP port used for video streaming.
1586  *
1587  * @ingroup network_parameters
1588 **/
1589 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1590         lc->rtp_conf.video_rtp_min_port=lc->rtp_conf.video_rtp_max_port=port;
1591 }
1592
1593 /**
1594  * Sets the UDP port range from which to randomly select the port used for video streaming.
1595  */
1596 void linphone_core_set_video_port_range(LinphoneCore *lc, int min_port, int max_port)
1597 {
1598         lc->rtp_conf.video_rtp_min_port=min_port;
1599         lc->rtp_conf.video_rtp_max_port=max_port;
1600 }
1601
1602 /**
1603  * Sets the no-rtp timeout value in seconds.
1604  *
1605  * @ingroup media_parameters
1606  * See linphone_core_get_nortp_timeout() for details.
1607 **/
1608 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1609         lc->rtp_conf.nortp_timeout=nortp_timeout;
1610 }
1611
1612 /**
1613  * Indicates whether SIP INFO is used for sending digits.
1614  *
1615  * @ingroup media_parameters
1616 **/
1617 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1618 {
1619         return lc->sip_conf.use_info;
1620 }
1621
1622 /**
1623  * Sets whether SIP INFO is to be used for sending digits.
1624  *
1625  * @ingroup media_parameters
1626 **/
1627 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1628 {
1629         lc->sip_conf.use_info=use_info;
1630 }
1631
1632 /**
1633  * Indicates whether RFC2833 is used for sending digits.
1634  *
1635  * @ingroup media_parameters
1636 **/
1637 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1638 {
1639         return lc->sip_conf.use_rfc2833;
1640 }
1641
1642 /**
1643  * Sets whether RFC2833 is to be used for sending digits.
1644  *
1645  * @ingroup media_parameters
1646 **/
1647 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1648 {
1649         lc->sip_conf.use_rfc2833=use_rfc2833;
1650 }
1651
1652 /**
1653  * Returns the UDP port used by SIP.
1654  *
1655  * Deprecated: use linphone_core_get_sip_transports() instead.
1656  * @ingroup network_parameters
1657 **/
1658 int linphone_core_get_sip_port(LinphoneCore *lc)
1659 {
1660         LCSipTransports *tr=&lc->sip_conf.transports;
1661         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1662 }
1663
1664 static char _ua_name[64]="Linphone";
1665 static char _ua_version[64]=LINPHONE_VERSION;
1666
1667 #ifdef HAVE_EXOSIP_GET_VERSION
1668 extern const char *eXosip_get_version();
1669 #endif
1670
1671 static void apply_user_agent(LinphoneCore *lc){
1672         char ua_string[256];
1673         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1674 #ifdef HAVE_EXOSIP_GET_VERSION
1675                  eXosip_get_version()
1676 #else
1677                  "unknown"
1678 #endif
1679         );
1680         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1681 }
1682
1683 /**
1684  * Sets the user agent string used in SIP messages.
1685  *
1686  * @ingroup misc
1687 **/
1688 void linphone_core_set_user_agent(LinphoneCore *lc, const char *name, const char *ver){
1689         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1690         strncpy(_ua_version,ver,sizeof(_ua_version));
1691         apply_user_agent(lc);
1692 }
1693
1694 const char *linphone_core_get_user_agent_name(void){
1695         return _ua_name;
1696 }
1697
1698 const char *linphone_core_get_user_agent_version(void){
1699         return _ua_version;
1700 }
1701
1702 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1703         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1704         ms_warning("%s",msg);
1705         if (lc->vtable.display_warning)
1706                 lc->vtable.display_warning(lc,msg);
1707         ms_free(msg);
1708 }
1709
1710 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1711         return
1712                 tr2->udp_port==tr1->udp_port &&
1713                 tr2->tcp_port==tr1->tcp_port &&
1714                 tr2->dtls_port==tr1->dtls_port &&
1715                 tr2->tls_port==tr1->tls_port;
1716 }
1717
1718 static int apply_transports(LinphoneCore *lc){
1719         Sal *sal=lc->sal;
1720         const char *anyaddr;
1721         LCSipTransports *tr=&lc->sip_conf.transports;
1722
1723         /*first of all invalidate all current registrations so that we can register again with new transports*/
1724         __linphone_core_invalidate_registers(lc);
1725
1726         if (lc->sip_conf.ipv6_enabled)
1727                 anyaddr="::0";
1728         else
1729                 anyaddr="0.0.0.0";
1730
1731         sal_unlisten_ports(sal);
1732         if (tr->udp_port>0){
1733                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1734                         transport_error(lc,"udp",tr->udp_port);
1735                         return -1;
1736                 }
1737         }
1738         if (tr->tcp_port>0){
1739                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1740                         transport_error(lc,"tcp",tr->tcp_port);
1741                 }
1742         }
1743         if (tr->tls_port>0){
1744                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1745                         transport_error(lc,"tls",tr->tls_port);
1746                 }
1747         }
1748         apply_user_agent(lc);
1749         return 0;
1750 }
1751
1752 /**
1753  * Sets the ports to be used for each of transport (UDP or TCP)
1754  *
1755  * A zero value port for a given transport means the transport
1756  * is not used.
1757  *
1758  * @ingroup network_parameters
1759 **/
1760 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1761
1762         if (transports_unchanged(tr,&lc->sip_conf.transports))
1763                 return 0;
1764         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1765
1766         if (linphone_core_ready(lc)){
1767                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1768                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1769                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1770         }
1771
1772         if (lc->sal==NULL) return 0;
1773         return apply_transports(lc);
1774 }
1775
1776 /**
1777  * Retrieves the ports used for each transport (udp, tcp).
1778  * A zero value port for a given transport means the transport
1779  * is not used.
1780  * @ingroup network_parameters
1781 **/
1782 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1783         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1784         return 0;
1785 }
1786
1787 /**
1788  * Sets the UDP port to be used by SIP.
1789  *
1790  * Deprecated: use linphone_core_set_sip_transports() instead.
1791  * @ingroup network_parameters
1792 **/
1793 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1794 {
1795         LCSipTransports tr;
1796         memset(&tr,0,sizeof(tr));
1797         tr.udp_port=port;
1798         linphone_core_set_sip_transports (lc,&tr);
1799 }
1800
1801 /**
1802  * Returns TRUE if IPv6 is enabled.
1803  *
1804  * @ingroup network_parameters
1805  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1806 **/
1807 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1808         return lc->sip_conf.ipv6_enabled;
1809 }
1810
1811 /**
1812  * Turns IPv6 support on or off.
1813  *
1814  * @ingroup network_parameters
1815  *
1816  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1817  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1818  * By default IPv6 support is off.
1819 **/
1820 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1821         if (lc->sip_conf.ipv6_enabled!=val){
1822                 lc->sip_conf.ipv6_enabled=val;
1823                 if (lc->sal){
1824                         /* we need to restart eXosip */
1825                         apply_transports(lc);
1826                 }
1827         }
1828 }
1829
1830
1831 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1832         char result[LINPHONE_IPADDR_SIZE];
1833         bool_t new_status=lc->network_last_status;
1834
1835         /* only do the network up checking every five seconds */
1836         if (lc->network_last_check==0 || (curtime-lc->network_last_check)>=5){
1837                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1838                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1839                         new_status=TRUE;
1840                 }else new_status=FALSE;
1841                 lc->network_last_check=curtime;
1842                 if (new_status!=lc->network_last_status) {
1843                         if (new_status){
1844                                 ms_message("New local ip address is %s",result);
1845                         }
1846                         set_network_reachable(lc,new_status, curtime);
1847                         lc->network_last_status=new_status;
1848                 }
1849         }
1850 }
1851
1852 static void proxy_update(LinphoneCore *lc){
1853         MSList *elem,*next;
1854         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1855         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1856                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1857                 next=elem->next;
1858                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1859                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1860                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1861                         linphone_proxy_config_destroy(cfg);
1862                 }
1863         }
1864 }
1865
1866 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1867         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1868         if (lf!=NULL){
1869                 lf->info=info;
1870                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1871                 if (lc->vtable.buddy_info_updated)
1872                         lc->vtable.buddy_info_updated(lc,lf);
1873         }else{
1874                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1875         }
1876 }
1877
1878 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1879         MSList *elem;
1880         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1881         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1882                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1883                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1884                         if (req->results!=NULL){
1885                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1886                                 ms_list_free(req->results);
1887                                 req->results=NULL;
1888                                 assign_buddy_info(lc,i);
1889                         }
1890                         sip_setup_context_buddy_lookup_free(ctx,req);
1891                         elem->data=NULL;
1892                 }
1893         }
1894         /*purge completed requests */
1895         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1896                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1897         }
1898 }
1899
1900 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1901         const MSList *elem;
1902         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1903         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1904                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1905                 if (lf->info==NULL){
1906                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1907                                 if (linphone_address_get_username(lf->uri)!=NULL){
1908                                         BuddyLookupRequest *req;
1909                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1910                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1911                                         buddy_lookup_request_set_key(req,tmp);
1912                                         buddy_lookup_request_set_max_results(req,1);
1913                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1914                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
1915                                         ms_free(tmp);
1916                                 }
1917                         }
1918                 }
1919         }
1920 }
1921
1922 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
1923         LinphoneProxyConfig *cfg=NULL;
1924         linphone_core_get_default_proxy(lc,&cfg);
1925         if (cfg){
1926                 if (lc->bl_refresh){
1927                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1928                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
1929                                 linphone_core_grab_buddy_infos(lc,cfg);
1930                                 lc->bl_refresh=FALSE;
1931                         }
1932                 }
1933                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
1934         }
1935 }
1936
1937 /**
1938  * Main loop function. It is crucial that your application call it periodically.
1939  *
1940  * @ingroup initializing
1941  * linphone_core_iterate() performs various backgrounds tasks:
1942  * - receiving of SIP messages
1943  * - handles timers and timeout
1944  * - performs registration to proxies
1945  * - authentication retries
1946  * The application MUST call this function periodically, in its main loop.
1947  * Be careful that this function must be called from the same thread as
1948  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
1949  * serialized with a mutex.
1950 **/
1951 void linphone_core_iterate(LinphoneCore *lc){
1952         MSList *calls;
1953         LinphoneCall *call;
1954         time_t curtime=time(NULL);
1955         int elapsed;
1956         bool_t one_second_elapsed=FALSE;
1957
1958         if (curtime-lc->prevtime>=1){
1959                 lc->prevtime=curtime;
1960                 one_second_elapsed=TRUE;
1961         }
1962
1963         if (lc->ecc!=NULL){
1964                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
1965                 if (ecs!=LinphoneEcCalibratorInProgress){
1966                         if (lc->ecc->cb)
1967                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
1968                         if (ecs==LinphoneEcCalibratorDone){
1969                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
1970                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-(len/2),0));
1971                         } else if (ecs == LinphoneEcCalibratorFailed) {
1972                                 lp_config_set_int(lc->config, "sound", "ec_delay", LP_CONFIG_DEFAULT_INT(lc->config, "ec_delay", 250));
1973                         } else if (ecs == LinphoneEcCalibratorDoneNoEcho) {
1974                                 linphone_core_enable_echo_cancellation(lc, FALSE);
1975                         }
1976                         ec_calibrator_destroy(lc->ecc);
1977                         lc->ecc=NULL;
1978                 }
1979         }
1980
1981         if (lc->preview_finished){
1982                 lc->preview_finished=0;
1983                 ring_stop(lc->ringstream);
1984                 lc->ringstream=NULL;
1985                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
1986         }
1987
1988         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
1989             && (curtime-lc->dmfs_playing_start_time)>5){
1990                 ring_stop(lc->ringstream);
1991                 lc->ringstream=NULL;
1992                 lc->dmfs_playing_start_time=0;
1993         }
1994
1995         sal_iterate(lc->sal);
1996         if (lc->msevq) ms_event_queue_pump(lc->msevq);
1997         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
1998
1999         proxy_update(lc);
2000
2001         //we have to iterate for each call
2002         calls= lc->calls;
2003         while(calls!= NULL){
2004                 call = (LinphoneCall *)calls->data;
2005                 elapsed = curtime-call->start_time;
2006                  /* get immediately a reference to next one in case the one
2007                  we are going to examine is destroy and removed during
2008                  linphone_core_start_invite() */
2009                 calls=calls->next;
2010                 linphone_call_background_tasks(call,one_second_elapsed);
2011                 if (call->state==LinphoneCallOutgoingInit && (curtime-call->start_time>=2)){
2012                         /*start the call even if the OPTIONS reply did not arrive*/
2013                         if (call->ice_session != NULL) {
2014                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
2015                                                 ,linphone_core_get_stun_server(lc));
2016                                 linphone_call_delete_ice_session(call);
2017                                 linphone_call_stop_media_streams_for_ice_gathering(call);
2018                         }
2019                         if (call->upnp_session != NULL) {
2020                                 ms_warning("uPnP mapping has not finished yet, proceeded with the call without uPnP anyway.");
2021                                 linphone_call_delete_upnp_session(call);
2022                         }
2023                         linphone_core_start_invite(lc,call);
2024                 }
2025                 if (call->state==LinphoneCallIncomingReceived){
2026                         ms_message("incoming call ringing for %i seconds",elapsed);
2027                         if (elapsed>lc->sip_conf.inc_timeout){
2028                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
2029                                 call->log->status=LinphoneCallMissed;
2030                                 call->reason=LinphoneReasonNotAnswered;
2031                                 linphone_core_terminate_call(lc,call);
2032                         }
2033                 }
2034                 if (lc->sip_conf.in_call_timeout > 0 && elapsed>lc->sip_conf.in_call_timeout) {
2035                         ms_message("in call timeout (%i)",lc->sip_conf.in_call_timeout);
2036                         linphone_core_terminate_call(lc,call);
2037                 }
2038         }
2039
2040         if (linphone_core_video_preview_enabled(lc)){
2041                 if (lc->previewstream==NULL && lc->calls==NULL)
2042                         toggle_video_preview(lc,TRUE);
2043 #ifdef VIDEO_ENABLED
2044                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
2045 #endif
2046         }else{
2047                 if (lc->previewstream!=NULL)
2048                         toggle_video_preview(lc,FALSE);
2049         }
2050
2051         linphone_core_run_hooks(lc);
2052         linphone_core_do_plugin_tasks(lc);
2053
2054         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
2055             (curtime-lc->netup_time)>3){
2056                 linphone_core_send_initial_subscribes(lc);
2057                 lc->initial_subscribes_sent=TRUE;
2058         }
2059
2060         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
2061                 lp_config_sync(lc->config);
2062         }
2063 }
2064
2065 /**
2066  * Interpret a call destination as supplied by the user, and returns a fully qualified
2067  * LinphoneAddress.
2068  *
2069  * A sip address should look like DisplayName <sip:username@domain:port> .
2070  * Basically this function performs the following tasks
2071  * - if a phone number is entered, prepend country prefix of the default proxy
2072  *   configuration, eventually escape the '+' by 00.
2073  * - if no domain part is supplied, append the domain name of the default proxy
2074  * - if no sip: is present, prepend it
2075  *
2076  * The result is a syntaxically correct SIP address.
2077 **/
2078
2079 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
2080         enum_lookup_res_t *enumres=NULL;
2081         char *enum_domain=NULL;
2082         LinphoneProxyConfig *proxy=lc->default_proxy;;
2083         char *tmpurl;
2084         LinphoneAddress *uri;
2085
2086         if (is_enum(url,&enum_domain)){
2087                 if (lc->vtable.display_status!=NULL)
2088                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
2089                 if (enum_lookup(enum_domain,&enumres)<0){
2090                         if (lc->vtable.display_status!=NULL)
2091                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
2092                         ms_free(enum_domain);
2093                         return NULL;
2094                 }
2095                 ms_free(enum_domain);
2096                 tmpurl=enumres->sip_address[0];
2097                 uri=linphone_address_new(tmpurl);
2098                 enum_lookup_res_free(enumres);
2099                 return uri;
2100         }
2101         /* check if we have a "sip:" */
2102         if (strstr(url,"sip:")==NULL){
2103                 /* this doesn't look like a true sip uri */
2104                 if (strchr(url,'@')!=NULL){
2105                         /* seems like sip: is missing !*/
2106                         tmpurl=ms_strdup_printf("sip:%s",url);
2107                         uri=linphone_address_new(tmpurl);
2108                         ms_free(tmpurl);
2109                         if (uri){
2110                                 return uri;
2111                         }
2112                 }
2113
2114                 if (proxy!=NULL){
2115                         /* append the proxy domain suffix */
2116                         const char *identity=linphone_proxy_config_get_identity(proxy);
2117                         char normalized_username[128];
2118                         uri=linphone_address_new(identity);
2119                         if (uri==NULL){
2120                                 return NULL;
2121                         }
2122                         linphone_address_set_display_name(uri,NULL);
2123                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2124                                                                 sizeof(normalized_username));
2125                         linphone_address_set_username(uri,normalized_username);
2126                         return uri;
2127                 }else return NULL;
2128         }
2129         uri=linphone_address_new(url);
2130         if (uri!=NULL){
2131                 return uri;
2132         }
2133         /* else we could not do anything with url given by user, so display an error */
2134         if (lc->vtable.display_warning!=NULL){
2135                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2136         }
2137         return NULL;
2138 }
2139
2140 /**
2141  * Returns the default identity SIP address.
2142  *
2143  * @ingroup proxies
2144  * This is an helper function:
2145  *
2146  * If no default proxy is set, this will return the primary contact (
2147  * see linphone_core_get_primary_contact() ). If a default proxy is set
2148  * it returns the registered identity on the proxy.
2149 **/
2150 const char * linphone_core_get_identity(LinphoneCore *lc){
2151         LinphoneProxyConfig *proxy=NULL;
2152         const char *from;
2153         linphone_core_get_default_proxy(lc,&proxy);
2154         if (proxy!=NULL) {
2155                 from=linphone_proxy_config_get_identity(proxy);
2156         }else from=linphone_core_get_primary_contact(lc);
2157         return from;
2158 }
2159
2160 const char * linphone_core_get_route(LinphoneCore *lc){
2161         LinphoneProxyConfig *proxy=NULL;
2162         const char *route=NULL;
2163         linphone_core_get_default_proxy(lc,&proxy);
2164         if (proxy!=NULL) {
2165                 route=linphone_proxy_config_get_route(proxy);
2166         }
2167         return route;
2168 }
2169
2170 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2171         if (call->refer_pending){
2172                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2173                 LinphoneCall *newcall;
2174                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2175                 cp->referer=call;
2176                 ms_message("Starting new call to refered address %s",call->refer_to);
2177                 call->refer_pending=FALSE;
2178                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2179                 linphone_call_params_destroy(cp);
2180                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2181         }
2182 }
2183
2184 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2185         if (referer->op!=NULL){
2186                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2187         }
2188 }
2189
2190 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2191         const MSList *elem;
2192         LinphoneProxyConfig *found_cfg=NULL;
2193         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2194
2195         /*always prefer the default proxy if it is matching the destination uri*/
2196         if (default_cfg){
2197                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2198                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2199                         return default_cfg;
2200         }
2201
2202         /*otherwise iterate through the other proxy config and return the first matching*/
2203         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2204                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2205                 const char *domain=linphone_proxy_config_get_domain(cfg);
2206                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2207                         found_cfg=cfg;
2208                         break;
2209                 }
2210         }
2211         return found_cfg;
2212 }
2213
2214 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2215         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2216         if (cfg==NULL)
2217                 linphone_core_get_default_proxy (lc,&cfg);
2218         if (cfg!=NULL){
2219                 if (route) *route=linphone_proxy_config_get_route(cfg);
2220                 return linphone_proxy_config_get_identity (cfg);
2221         }
2222         return linphone_core_get_primary_contact (lc);
2223 }
2224
2225 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2226         LinphoneAddress *ctt;
2227         const char *localip=call->localip;
2228
2229         /* first use user's supplied ip address if asked*/
2230         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2231                 ctt=linphone_core_get_primary_contact_parsed(lc);
2232                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2233                         linphone_core_get_nat_address_resolved(lc));
2234         }
2235
2236         /* if already choosed, don't change it */
2237         if (call->op && sal_op_get_contact(call->op)!=NULL){
2238                 return NULL;
2239         }
2240         /* if the ping OPTIONS request succeeded use the contact guessed from the
2241          received, rport*/
2242         if (call->ping_op){
2243                 const char *guessed=sal_op_get_contact(call->ping_op);
2244                 if (guessed){
2245                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2246                         return ms_strdup(guessed);
2247                 }
2248         }
2249
2250         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2251         if (dest_proxy && dest_proxy->op){
2252                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2253                 if (fixed_contact) {
2254                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2255                         return ms_strdup(fixed_contact);
2256                 }
2257         }
2258
2259         ctt=linphone_core_get_primary_contact_parsed(lc);
2260
2261         if (ctt!=NULL){
2262                 char *ret;
2263                 /*otherwise use supllied localip*/
2264                 linphone_address_set_domain(ctt,localip);
2265                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2266                 ret=linphone_address_as_string_uri_only(ctt);
2267                 linphone_address_destroy(ctt);
2268                 ms_message("Contact has been fixed using local ip to %s",ret);
2269                 return ret;
2270         }
2271         return NULL;
2272 }
2273
2274 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2275         bool_t ice_ready = FALSE;
2276         bool_t upnp_ready = FALSE;
2277         bool_t ping_ready = FALSE;
2278
2279         if (call->ice_session != NULL) {
2280                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2281         } else {
2282                 ice_ready = TRUE;
2283         }
2284 #ifdef BUILD_UPNP
2285         if (call->upnp_session != NULL) {
2286                 if (linphone_upnp_session_get_state(call->upnp_session) == LinphoneUpnpStateOk) upnp_ready = TRUE;
2287         } else {
2288                 upnp_ready = TRUE;
2289         }
2290 #endif //BUILD_UPNP
2291         if (call->ping_op != NULL) {
2292                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2293         } else {
2294                 ping_ready = TRUE;
2295         }
2296
2297         if ((ice_ready == TRUE) && (upnp_ready == TRUE) && (ping_ready == TRUE)) {
2298                 return linphone_core_start_invite(lc, call);
2299         }
2300         return 0;
2301 }
2302
2303 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2304         int err;
2305         char *contact;
2306         char *real_url,*barmsg;
2307         char *from;
2308         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2309
2310         /*try to be best-effort in giving real local or routable contact address */
2311         contact=get_fixed_contact(lc,call,dest_proxy);
2312         if (contact){
2313                 sal_op_set_contact(call->op, contact);
2314                 ms_free(contact);
2315         }
2316         linphone_core_stop_dtmf_stream(lc);
2317         linphone_call_init_media_streams(call);
2318         if (lc->ringstream==NULL)
2319                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2320         linphone_call_make_local_media_description(lc,call);
2321         if (!lc->sip_conf.sdp_200_ack){
2322                 call->media_pending=TRUE;
2323                 sal_call_set_local_media_description(call->op,call->localdesc);
2324         }
2325         real_url=linphone_address_as_string(call->log->to);
2326         from=linphone_address_as_string(call->log->from);
2327         err=sal_call(call->op,from,real_url);
2328         call->log->call_id=ms_strdup(sal_op_get_call_id(call->op)); /*must be known at that time*/
2329
2330         if (lc->sip_conf.sdp_200_ack){
2331                 call->media_pending=TRUE;
2332                 sal_call_set_local_media_description(call->op,call->localdesc);
2333         }
2334         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2335         if (lc->vtable.display_status!=NULL)
2336                 lc->vtable.display_status(lc,barmsg);
2337         ms_free(barmsg);
2338
2339         if (err<0){
2340                 if (lc->vtable.display_status!=NULL)
2341                         lc->vtable.display_status(lc,_("Could not call"));
2342                 linphone_call_stop_media_streams(call);
2343                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2344         }else {
2345                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2346         }
2347         ms_free(real_url);
2348         ms_free(from);
2349         return err;
2350 }
2351
2352 /**
2353  * Initiates an outgoing call
2354  *
2355  * @ingroup call_control
2356  * @param lc the LinphoneCore object
2357  * @param url the destination of the call (sip address, or phone number).
2358  *
2359  * The application doesn't own a reference to the returned LinphoneCall object.
2360  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2361  *
2362  * @return a LinphoneCall object or NULL in case of failure
2363 **/
2364 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2365         LinphoneCall *call;
2366         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2367         p->has_video &= !!lc->video_policy.automatically_initiate;
2368         call=linphone_core_invite_with_params(lc,url,p);
2369         linphone_call_params_destroy(p);
2370         return call;
2371 }
2372
2373
2374 /**
2375  * Initiates an outgoing call according to supplied call parameters
2376  *
2377  * @ingroup call_control
2378  * @param lc the LinphoneCore object
2379  * @param url the destination of the call (sip address, or phone number).
2380  * @param p call parameters
2381  *
2382  * The application doesn't own a reference to the returned LinphoneCall object.
2383  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2384  *
2385  * @return a LinphoneCall object or NULL in case of failure
2386 **/
2387 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2388         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2389         if (addr){
2390                 LinphoneCall *call;
2391                 call=linphone_core_invite_address_with_params(lc,addr,p);
2392                 linphone_address_destroy(addr);
2393                 return call;
2394         }
2395         return NULL;
2396 }
2397
2398 /**
2399  * Initiates an outgoing call given a destination LinphoneAddress
2400  *
2401  * @ingroup call_control
2402  * @param lc the LinphoneCore object
2403  * @param addr the destination of the call (sip address).
2404  *
2405  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2406  * created by linphone_core_interpret_url().
2407  * The application doesn't own a reference to the returned LinphoneCall object.
2408  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2409  *
2410  * @return a LinphoneCall object or NULL in case of failure
2411 **/
2412 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2413         LinphoneCall *call;
2414         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2415         p->has_video &= !!lc->video_policy.automatically_initiate;
2416         call=linphone_core_invite_address_with_params (lc,addr,p);
2417         linphone_call_params_destroy(p);
2418         return call;
2419 }
2420
2421
2422 /**
2423  * Initiates an outgoing call given a destination LinphoneAddress
2424  *
2425  * @ingroup call_control
2426  * @param lc the LinphoneCore object
2427  * @param addr the destination of the call (sip address).
2428         @param params call parameters
2429  *
2430  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2431  * created by linphone_core_interpret_url().
2432  * The application doesn't own a reference to the returned LinphoneCall object.
2433  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2434  *
2435  * @return a LinphoneCall object or NULL in case of failure
2436 **/
2437 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2438 {
2439         const char *route=NULL;
2440         const char *from=NULL;
2441         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2442         LinphoneAddress *parsed_url2=NULL;
2443         char *real_url=NULL;
2444         LinphoneCall *call;
2445         bool_t defer = FALSE;
2446
2447         linphone_core_preempt_sound_resources(lc);
2448
2449         if(!linphone_core_can_we_add_call(lc)){
2450                 if (lc->vtable.display_warning)
2451                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2452                 return NULL;
2453         }
2454         linphone_core_get_default_proxy(lc,&proxy);
2455         route=linphone_core_get_route(lc);
2456
2457         real_url=linphone_address_as_string(addr);
2458         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2459
2460         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2461                 ms_message("Overriding default proxy setting for this call:");
2462                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2463         }
2464
2465         if (dest_proxy!=NULL)
2466                 from=linphone_proxy_config_get_identity(dest_proxy);
2467         else if (proxy!=NULL)
2468                 from=linphone_proxy_config_get_identity(proxy);
2469
2470         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2471         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2472
2473         parsed_url2=linphone_address_new(from);
2474
2475         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2476         call->dest_proxy=dest_proxy;
2477         sal_op_set_route(call->op,route);
2478
2479         if(linphone_core_add_call(lc,call)!= 0)
2480         {
2481                 ms_warning("we had a problem in adding the call into the invite ... weird");
2482                 linphone_call_unref(call);
2483                 return NULL;
2484         }
2485         /* this call becomes now the current one*/
2486         lc->current_call=call;
2487         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2488         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2489                 /* Defer the start of the call after the ICE gathering process. */
2490                 linphone_call_init_media_streams(call);
2491                 linphone_call_start_media_streams_for_ice_gathering(call);
2492                 call->start_time=time(NULL);
2493                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2494                         /* Ice candidates gathering failed, proceed with the call anyway. */
2495                         linphone_call_delete_ice_session(call);
2496                         linphone_call_stop_media_streams_for_ice_gathering(call);
2497                 } else {
2498                         defer = TRUE;
2499                 }
2500         }
2501         else if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseUpnp) {
2502 #ifdef BUILD_UPNP
2503                 linphone_call_init_media_streams(call);
2504                 call->start_time=time(NULL);
2505                 if (linphone_core_update_upnp(lc,call)<0) {
2506                         /* uPnP port mappings failed, proceed with the call anyway. */
2507                         linphone_call_delete_upnp_session(call);
2508                 } else {
2509                         defer = TRUE;
2510                 }
2511 #endif //BUILD_UPNP
2512         }
2513
2514         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2515                 /*defer the start of the call after the OPTIONS ping*/
2516                 call->ping_replied=FALSE;
2517                 call->ping_op=sal_op_new(lc->sal);
2518                 sal_ping(call->ping_op,from,real_url);
2519                 sal_op_set_user_pointer(call->ping_op,call);
2520                 call->start_time=time(NULL);
2521         }else{
2522                 if (defer==FALSE) linphone_core_start_invite(lc,call);
2523         }
2524
2525         if (real_url!=NULL) ms_free(real_url);
2526         return call;
2527 }
2528
2529 /**
2530  * Performs a simple call transfer to the specified destination.
2531  *
2532  * The remote endpoint is expected to issue a new call to the specified destination.
2533  * The current call remains active and thus can be later paused or terminated.
2534 **/
2535 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2536 {
2537         char *real_url=NULL;
2538         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2539
2540         if (!real_parsed_url){
2541                 /* bad url */
2542                 return -1;
2543         }
2544         if (call==NULL){
2545                 ms_warning("No established call to refer.");
2546                 return -1;
2547         }
2548         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2549         real_url=linphone_address_as_string (real_parsed_url);
2550         sal_call_refer(call->op,real_url);
2551         ms_free(real_url);
2552         linphone_address_destroy(real_parsed_url);
2553         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2554         return 0;
2555 }
2556
2557 /**
2558  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2559  * @param lc linphone core object
2560  * @param call a running call you want to transfer
2561  * @param dest a running call whose remote person will receive the transfer
2562  *
2563  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2564  * The destination call is a call previously established to introduce the transfered person.
2565  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2566  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2567  * close the call with us (the 'dest' call).
2568 **/
2569 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2570         int result = sal_call_refer_with_replaces (call->op,dest->op);
2571         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2572         return result;
2573 }
2574
2575 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2576         LinphoneCall *call = linphone_core_get_current_call(lc);
2577         if(call != NULL)
2578         {
2579                 if(call->dir==LinphoneCallIncoming
2580                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2581                         return TRUE;
2582         }
2583         return FALSE;
2584 }
2585
2586 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2587         char *barmesg;
2588         char *tmp;
2589         LinphoneAddress *from_parsed;
2590         SalMediaDescription *md;
2591         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2592         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2593
2594         linphone_call_make_local_media_description(lc,call);
2595         sal_call_set_local_media_description(call->op,call->localdesc);
2596         md=sal_call_get_final_media_description(call->op);
2597         if (md && sal_media_description_empty(md)){
2598                 sal_call_decline(call->op,SalReasonMedia,NULL);
2599                 linphone_call_unref(call);
2600                 return;
2601         }
2602
2603         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2604         linphone_address_clean(from_parsed);
2605         tmp=linphone_address_as_string(from_parsed);
2606         linphone_address_destroy(from_parsed);
2607         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2608             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2609         if (lc->vtable.show) lc->vtable.show(lc);
2610         if (lc->vtable.display_status)
2611             lc->vtable.display_status(lc,barmesg);
2612
2613         /* play the ring if this is the only call*/
2614         if (ms_list_size(lc->calls)==1){
2615                 lc->current_call=call;
2616                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2617                         ring_stop(lc->ringstream);
2618                         lc->ringstream=NULL;
2619                         lc->dmfs_playing_start_time=0;
2620                 }
2621                 if (lc->sound_conf.ring_sndcard!=NULL){
2622                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2623                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2624                                 ms_message("Starting local ring...");
2625                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2626                         }
2627                         else
2628                         {
2629                                 ms_message("the local ring is already started");
2630                         }
2631                 }
2632         }else{
2633                 /* else play a tone within the context of the current call */
2634                 call->ringing_beep=TRUE;
2635                 linphone_core_play_tone(lc);
2636         }
2637
2638         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2639
2640         if (call->state==LinphoneCallIncomingReceived){
2641                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2642
2643                 if (propose_early_media || ringback_tone!=NULL){
2644                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2645                         md=sal_call_get_final_media_description(call->op);
2646                         linphone_core_update_streams(lc,call,md);
2647                 }
2648                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2649                         linphone_core_accept_call(lc,call);
2650                 }
2651         }
2652         linphone_call_unref(call);
2653
2654         ms_free(barmesg);
2655         ms_free(tmp);
2656 }
2657
2658 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2659         const char *subject;
2660         call->camera_active=call->params.has_video;
2661         if (call->ice_session != NULL) {
2662                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2663         }
2664 #ifdef BUILD_UPNP
2665         if(call->upnp_session != NULL) {
2666                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2667         }
2668 #endif //BUILD_UPNP
2669         if (call->params.in_conference){
2670                 subject="Conference";
2671         }else{
2672                 subject="Media change";
2673         }
2674         if (lc->vtable.display_status)
2675                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2676         sal_call_set_local_media_description (call->op,call->localdesc);
2677         return sal_call_update(call->op,subject);
2678 }
2679
2680 /**
2681  * @ingroup call_control
2682  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2683  *
2684  * In this version this is limited to the following use cases:
2685  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2686  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2687  *
2688  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2689  * @param lc the core
2690  * @param call the call to be updated
2691  * @param params the new call parameters to use. (may be NULL)
2692  * @return 0 if successful, -1 otherwise.
2693 **/
2694 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2695         int err=0;
2696         if (params!=NULL){
2697                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2698 #ifdef VIDEO_ENABLED
2699                 bool_t has_video = call->params.has_video;
2700                 if ((call->ice_session != NULL) && (call->videostream != NULL) && !params->has_video) {
2701                         ice_session_remove_check_list(call->ice_session, call->videostream->ms.ice_check_list);
2702                         call->videostream->ms.ice_check_list = NULL;
2703                 }
2704                 call->params = *params;
2705                 linphone_call_make_local_media_description(lc, call);
2706                 if (!has_video && call->params.has_video) {
2707                         if (call->ice_session != NULL) {
2708                                 /* Defer call update until the ICE candidates gathering process has finished. */
2709                                 ms_message("Defer call update to gather ICE candidates");
2710                                 linphone_call_init_video_stream(call);
2711                                 video_stream_prepare_video(call->videostream);
2712                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2713                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2714                                         linphone_call_delete_ice_session(call);
2715                                 } else {
2716                                         return err;
2717                                 }
2718                         }
2719 #ifdef BUILD_UPNP
2720                         if(call->upnp_session != NULL) {
2721                                 ms_message("Defer call update to add uPnP port mappings");
2722                                 linphone_call_init_video_stream(call);
2723                                 video_stream_prepare_video(call->videostream);
2724                                 if (linphone_core_update_upnp(lc, call)<0) {
2725                                         /* uPnP port mappings failed, proceed with the call anyway. */
2726                                         linphone_call_delete_upnp_session(call);
2727                                 } else {
2728                                         return err;
2729                                 }
2730                         }
2731 #endif //BUILD_UPNP
2732                 }
2733 #endif
2734                 err = linphone_core_start_update_call(lc, call);
2735         }else{
2736 #ifdef VIDEO_ENABLED
2737                 if (call->videostream!=NULL){
2738                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2739                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2740                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2741                         }else video_stream_update_video_params(call->videostream);
2742                 }
2743 #endif
2744         }
2745
2746         return err;
2747 }
2748
2749 /**
2750  * @ingroup call_control
2751  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2752  *
2753  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2754  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2755  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2756  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2757  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2758  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2759  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2760  *
2761  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2762 **/
2763 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2764         if (call->state==LinphoneCallUpdatedByRemote){
2765                 call->defer_update=TRUE;
2766                 return 0;
2767         }
2768         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2769         return -1;
2770 }
2771
2772 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2773         SalMediaDescription *md;
2774         if (call->ice_session != NULL) {
2775                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2776                         /* Defer the sending of the answer until there are no losing pairs left. */
2777                         return 0;
2778                 }
2779                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2780         }
2781 #ifdef BUILD_UPNP
2782         if(call->upnp_session != NULL) {
2783                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2784         }
2785 #endif //BUILD_UPNP
2786         sal_call_set_local_media_description(call->op,call->localdesc);
2787         sal_call_accept(call->op);
2788         md=sal_call_get_final_media_description(call->op);
2789         if (md && !sal_media_description_empty(md))
2790                 linphone_core_update_streams (lc,call,md);
2791         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2792         return 0;
2793 }
2794
2795 /**
2796  * @ingroup call_control
2797  * Accept call modifications initiated by other end.
2798  *
2799  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2800  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2801  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2802  * requested by the other party, such as whether a video stream is requested.
2803  *
2804  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2805  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2806  * If params is not NULL, then the update will be accepted according to the parameters passed.
2807  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2808  * (see linphone_call_params_enable_video()).
2809  * @param lc the linphone core object.
2810  * @param call the LinphoneCall object
2811  * @param params a LinphoneCallParams object describing the call parameters to accept.
2812  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2813 **/
2814 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2815 #ifdef VIDEO_ENABLED
2816         bool_t old_has_video = call->params.has_video;
2817 #endif
2818         if (call->state!=LinphoneCallUpdatedByRemote){
2819                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2820                          linphone_call_state_to_string(call->state));
2821                 return -1;
2822         }
2823         if (params==NULL){
2824                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2825         }else
2826                 call->params=*params;
2827
2828         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2829                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2830                 call->params.has_video=FALSE;
2831         }
2832         if (call->current_params.in_conference) {
2833                 ms_warning("Video isn't supported in conference");
2834                 call->params.has_video = FALSE;
2835         }
2836         call->params.has_video &= linphone_core_media_description_contains_video_stream(sal_call_get_remote_media_description(call->op));
2837         call->camera_active=call->params.has_video;
2838         linphone_call_make_local_media_description(lc,call);
2839         if (call->ice_session != NULL) {
2840                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2841 #ifdef VIDEO_ENABLED
2842                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2843                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2844                                 linphone_call_init_video_stream(call);
2845                                 video_stream_prepare_video(call->videostream);
2846                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2847                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2848                                         linphone_call_delete_ice_session(call);
2849                                 } else return 0;
2850                         }
2851                 }
2852 #endif
2853         }
2854
2855 #if BUILD_UPNP
2856         if(call->upnp_session != NULL) {
2857                 if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2858                         linphone_call_init_video_stream(call);
2859                         video_stream_prepare_video(call->videostream);
2860                         if (linphone_core_update_upnp_from_remote_media_description(call, sal_call_get_remote_media_description(call->op))<0) {
2861                                 /* uPnP update failed, proceed with the call anyway. */
2862                                 linphone_call_delete_upnp_session(call);
2863                         } else return 0;
2864                 }
2865         }
2866 #endif //BUILD_UPNP
2867
2868         linphone_core_start_accept_call_update(lc, call);
2869         return 0;
2870 }
2871
2872 /**
2873  * Accept an incoming call.
2874  *
2875  * @ingroup call_control
2876  * Basically the application is notified of incoming calls within the
2877  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2878  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2879  * The application can later accept the call using this method.
2880  * @param lc the LinphoneCore object
2881  * @param call the LinphoneCall object representing the call to be answered.
2882  *
2883 **/
2884 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
2885         return linphone_core_accept_call_with_params(lc,call,NULL);
2886 }
2887
2888 /**
2889  * Accept an incoming call, with parameters.
2890  *
2891  * @ingroup call_control
2892  * Basically the application is notified of incoming calls within the
2893  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2894  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2895  * The application can later accept the call using
2896  * this method.
2897  * @param lc the LinphoneCore object
2898  * @param call the LinphoneCall object representing the call to be answered.
2899  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
2900  *
2901 **/
2902 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
2903 {
2904         LinphoneProxyConfig *cfg=NULL;
2905         const char *contact=NULL;
2906         SalOp *replaced;
2907         SalMediaDescription *new_md;
2908         bool_t was_ringing=FALSE;
2909
2910         if (call==NULL){
2911                 //if just one call is present answer the only one ...
2912                 if(linphone_core_get_calls_nb (lc) != 1)
2913                         return -1;
2914                 else
2915                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
2916         }
2917
2918         if (call->state==LinphoneCallConnected){
2919                 /*call already accepted*/
2920                 return -1;
2921         }
2922
2923         /* check if this call is supposed to replace an already running one*/
2924         replaced=sal_call_get_replaces(call->op);
2925         if (replaced){
2926                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
2927                 if (rc){
2928                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
2929                                    call,rc);
2930                         linphone_core_terminate_call(lc,rc);
2931                 }
2932         }
2933
2934         if (lc->current_call!=call){
2935                 linphone_core_preempt_sound_resources(lc);
2936         }
2937
2938         /*stop ringing */
2939         if (lc->ringstream!=NULL) {
2940                 ms_message("stop ringing");
2941                 ring_stop(lc->ringstream);
2942                 ms_message("ring stopped");
2943                 lc->ringstream=NULL;
2944                 was_ringing=TRUE;
2945         }
2946         if (call->ringing_beep){
2947                 linphone_core_stop_dtmf(lc);
2948                 call->ringing_beep=FALSE;
2949         }
2950
2951         linphone_core_get_default_proxy(lc,&cfg);
2952         call->dest_proxy=cfg;
2953         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
2954
2955         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
2956                 ms_message("Overriding default proxy setting for this call:");
2957                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
2958         }
2959         /*try to be best-effort in giving real local or routable contact address*/
2960         contact=get_fixed_contact(lc,call,call->dest_proxy);
2961         if (contact)
2962                 sal_op_set_contact(call->op,contact);
2963
2964         if (params){
2965                 const SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
2966                 call->params=*params;
2967                 // There might not be a md if the INVITE was lacking an SDP
2968                 // In this case we use the parameters as is.
2969                 if (md) call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
2970                 call->camera_active=call->params.has_video;
2971                 linphone_call_make_local_media_description(lc,call);
2972                 sal_call_set_local_media_description(call->op,call->localdesc);
2973         }
2974
2975         if (call->audiostream==NULL)
2976                 linphone_call_init_media_streams(call);
2977         if (!was_ringing && call->audiostream->ms.ticker==NULL){
2978                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2979         }
2980
2981         sal_call_accept(call->op);
2982         if (lc->vtable.display_status!=NULL)
2983                 lc->vtable.display_status(lc,_("Connected."));
2984         lc->current_call=call;
2985         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
2986         new_md=sal_call_get_final_media_description(call->op);
2987         linphone_core_update_streams(lc, call, new_md);
2988         if (new_md){
2989                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2990         }else call->media_pending=TRUE;
2991
2992         ms_message("call answered.");
2993         return 0;
2994 }
2995
2996 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
2997         sal_call_terminate(call->op);
2998
2999         /*stop ringing*/
3000         if (lc->ringstream!=NULL) {
3001                 ring_stop(lc->ringstream);
3002                 lc->ringstream=NULL;
3003         }
3004         linphone_call_stop_media_streams(call);
3005
3006 #ifdef BUILD_UPNP
3007         linphone_call_delete_upnp_session(call);
3008 #endif //BUILD_UPNP
3009
3010         if (lc->vtable.display_status!=NULL)
3011                 lc->vtable.display_status(lc,_("Call aborted") );
3012         linphone_call_set_state(call,LinphoneCallError,error);
3013         return 0;
3014 }
3015
3016 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
3017         if (call->state==LinphoneCallIncomingReceived){
3018                 if (call->reason!=LinphoneReasonNotAnswered)
3019                         call->reason=LinphoneReasonDeclined;
3020         }
3021         /*stop ringing*/
3022         if (lc->ringstream!=NULL) {
3023                 ring_stop(lc->ringstream);
3024                 lc->ringstream=NULL;
3025         }
3026
3027         linphone_call_stop_media_streams(call);
3028
3029 #ifdef BUILD_UPNP
3030         linphone_call_delete_upnp_session(call);
3031 #endif //BUILD_UPNP
3032
3033         if (lc->vtable.display_status!=NULL)
3034                 lc->vtable.display_status(lc,_("Call ended") );
3035         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
3036 }
3037
3038 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
3039         if (call->state==LinphoneCallIncomingReceived){
3040                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
3041                 call->reason=LinphoneReasonDeclined;
3042                 terminate_call(lc,call);
3043         }else{
3044                 ms_error("Bad state for call redirection.");
3045                 return -1;
3046     }
3047         return 0;
3048 }
3049
3050
3051 /**
3052  * Terminates a call.
3053  *
3054  * @ingroup call_control
3055  * @param lc the LinphoneCore
3056  * @param the_call the LinphoneCall object representing the call to be terminated.
3057 **/
3058 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
3059 {
3060         LinphoneCall *call;
3061         if (the_call == NULL){
3062                 call = linphone_core_get_current_call(lc);
3063                 if (ms_list_size(lc->calls)==1){
3064                         call=(LinphoneCall*)lc->calls->data;
3065                 }else{
3066                         ms_warning("No unique call to terminate !");
3067                         return -1;
3068                 }
3069         }
3070         else
3071         {
3072                 call = the_call;
3073         }
3074         sal_call_terminate(call->op);
3075         terminate_call(lc,call);
3076         return 0;
3077 }
3078
3079 /**
3080  * Decline a pending incoming call, with a reason.
3081  * @param lc the linphone core
3082  * @param call the LinphoneCall, must be in the IncomingReceived state.
3083  * @param reason the reason for rejecting the call: LinphoneReasonDeclined or LinphoneReasonBusy
3084 **/
3085 int linphone_core_decline_call(LinphoneCore *lc, LinphoneCall * call, LinphoneReason reason){
3086         SalReason sal_reason=SalReasonUnknown;
3087         if (call->state!=LinphoneCallIncomingReceived && call->state!=LinphoneCallIncomingEarlyMedia){
3088                 ms_error("linphone_core_decline_call(): Cannot decline a call that is in state %s",linphone_call_state_to_string(call->state));
3089                 return -1;
3090         }
3091         switch(reason){
3092                 case LinphoneReasonDeclined:
3093                         sal_reason=SalReasonDeclined;
3094                 break;
3095                 case LinphoneReasonBusy:
3096                         sal_reason=SalReasonBusy;
3097                 break;
3098                 default:
3099                         ms_error("linphone_core_decline_call(): unsupported reason %s",linphone_reason_to_string(reason));
3100                         return -1;
3101                 break;
3102         }
3103         sal_call_decline(call->op,sal_reason,NULL);
3104         terminate_call(lc,call);
3105         return 0;
3106 }
3107
3108 /**
3109  * Terminates all the calls.
3110  *
3111  * @ingroup call_control
3112  * @param lc The LinphoneCore
3113 **/
3114 int linphone_core_terminate_all_calls(LinphoneCore *lc){
3115         MSList *calls=lc->calls;
3116         while(calls) {
3117                 LinphoneCall *c=(LinphoneCall*)calls->data;
3118                 calls=calls->next;
3119                 linphone_core_terminate_call(lc,c);
3120         }
3121         return 0;
3122 }
3123
3124 /**
3125  * Returns the current list of calls.
3126  *
3127  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
3128  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
3129  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
3130  *
3131  * @ingroup call_control
3132 **/
3133 const MSList *linphone_core_get_calls(LinphoneCore *lc)
3134 {
3135         return lc->calls;
3136 }
3137
3138 /**
3139  * Returns TRUE if there is a call running.
3140  *
3141  * @ingroup call_control
3142 **/
3143 bool_t linphone_core_in_call(const LinphoneCore *lc){
3144         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
3145 }
3146
3147 /**
3148  * Returns The _LinphoneCall struct of the current call if one is in call
3149  *
3150  * @ingroup call_control
3151 **/
3152 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
3153 {
3154         return lc->current_call;
3155 }
3156
3157 /**
3158  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
3159  * this file will be played to the remote user.
3160  *
3161  * @ingroup call_control
3162 **/
3163 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
3164 {
3165         const char *subject=NULL;
3166
3167         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
3168                 ms_warning("Cannot pause this call, it is not active.");
3169                 return -1;
3170         }
3171         linphone_call_make_local_media_description(lc,call);
3172         if (call->ice_session != NULL) {
3173                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3174         }
3175 #ifdef BUILD_UPNP
3176         if(call->upnp_session != NULL) {
3177                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3178         }
3179 #endif //BUILD_UPNP
3180         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
3181                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3182                 subject="Call on hold";
3183         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
3184                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3185                 subject="Call on hold for me too";
3186         }else{
3187                 ms_error("No reason to pause this call, it is already paused or inactive.");
3188                 return -1;
3189         }
3190         sal_call_set_local_media_description(call->op,call->localdesc);
3191         if (sal_call_update(call->op,subject) != 0){
3192                 if (lc->vtable.display_warning)
3193                         lc->vtable.display_warning(lc,_("Could not pause the call"));
3194         }
3195         lc->current_call=NULL;
3196         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
3197         if (lc->vtable.display_status)
3198                 lc->vtable.display_status(lc,_("Pausing the current call..."));
3199         if (call->audiostream || call->videostream)
3200                 linphone_call_stop_media_streams (call);
3201         return 0;
3202 }
3203
3204 /**
3205  * Pause all currently running calls.
3206 **/
3207 int linphone_core_pause_all_calls(LinphoneCore *lc){
3208         const MSList *elem;
3209         for(elem=lc->calls;elem!=NULL;elem=elem->next){
3210                 LinphoneCall *call=(LinphoneCall *)elem->data;
3211                 LinphoneCallState cs=linphone_call_get_state(call);
3212                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3213                         linphone_core_pause_call(lc,call);
3214                 }
3215         }
3216         return 0;
3217 }
3218
3219 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3220         LinphoneCall *current_call;
3221         if (linphone_core_is_in_conference(lc)){
3222                 linphone_core_leave_conference(lc);
3223                 return;
3224         }
3225         current_call=linphone_core_get_current_call(lc);
3226         if(current_call != NULL){
3227                 ms_message("Pausing automatically the current call.");
3228                 linphone_core_pause_call(lc,current_call);
3229         }
3230 }
3231
3232 /**
3233  * Resumes the call.
3234  *
3235  * @ingroup call_control
3236 **/
3237 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3238 {
3239         char temp[255]={0};
3240         LinphoneCall *call = the_call;
3241         const char *subject="Call resuming";
3242
3243         if(call->state!=LinphoneCallPaused ){
3244                 ms_warning("we cannot resume a call that has not been established and paused before");
3245                 return -1;
3246         }
3247         if (call->params.in_conference==FALSE){
3248                 linphone_core_preempt_sound_resources(lc);
3249                 ms_message("Resuming call %p",call);
3250         }
3251
3252         /* Stop playing music immediately. If remote side is a conference it
3253          prevents the participants to hear it while the 200OK comes back.*/
3254         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3255
3256         linphone_call_make_local_media_description(lc,the_call);
3257         if (call->ice_session != NULL) {
3258                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3259         }
3260 #ifdef BUILD_UPNP
3261         if(call->upnp_session != NULL) {
3262                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3263         }
3264 #endif //BUILD_UPNP
3265         sal_call_set_local_media_description(call->op,call->localdesc);
3266         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3267         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3268         if(sal_call_update(call->op,subject) != 0){
3269                 return -1;
3270         }
3271         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3272         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3273         if (lc->vtable.display_status)
3274                 lc->vtable.display_status(lc,temp);
3275         return 0;
3276 }
3277
3278 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3279         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3280         return !linphone_address_weak_equal (addr,raddr);
3281 }
3282
3283 /**
3284  * Get the call with the remote_address specified
3285  * @param lc
3286  * @param remote_address
3287  * @return the LinphoneCall of the call if found
3288  */
3289 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3290         LinphoneAddress *raddr=linphone_address_new(remote_address);
3291         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3292         if (elem) return (LinphoneCall*) elem->data;
3293         return NULL;
3294 }
3295
3296 int linphone_core_send_publish(LinphoneCore *lc,
3297                                LinphoneOnlineStatus presence_mode)
3298 {
3299         const MSList *elem;
3300         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3301                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3302                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3303         }
3304         return 0;
3305 }
3306
3307 /**
3308  * Set the incoming call timeout in seconds.
3309  *
3310  * @ingroup call_control
3311  * If an incoming call isn't answered for this timeout period, it is
3312  * automatically declined.
3313 **/
3314 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3315         lc->sip_conf.inc_timeout=seconds;
3316         if (linphone_core_ready(lc)){
3317                 lp_config_set_int(lc->config,"sip","inc_timeout",seconds);
3318         }
3319 }
3320
3321 /**
3322  * Returns the incoming call timeout
3323  *
3324  * @ingroup call_control
3325  * See linphone_core_set_inc_timeout() for details.
3326 **/
3327 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3328         return lc->sip_conf.inc_timeout;
3329 }
3330
3331 /**
3332  * Set the in call timeout in seconds.
3333  *
3334  * @ingroup call_control
3335  * After this timeout period, the call is automatically hangup.
3336 **/
3337 void linphone_core_set_in_call_timeout(LinphoneCore *lc, int seconds){
3338         lc->sip_conf.in_call_timeout=seconds;
3339 }
3340
3341 /**
3342  * Returns the in call timeout
3343  *
3344  * @ingroup call_control
3345  * See linphone_core_set_in_call_timeout() for details.
3346 **/
3347 int linphone_core_get_in_call_timeout(LinphoneCore *lc){
3348         return lc->sip_conf.in_call_timeout;
3349 }
3350
3351 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3352                                                                                                         const char *contact,
3353                                                                                                         LinphoneOnlineStatus presence_mode)
3354 {
3355         if (minutes_away>0) lc->minutes_away=minutes_away;
3356
3357         if (lc->alt_contact!=NULL) {
3358                 ms_free(lc->alt_contact);
3359                 lc->alt_contact=NULL;
3360         }
3361         if (contact) lc->alt_contact=ms_strdup(contact);
3362         if (lc->presence_mode!=presence_mode){
3363                 linphone_core_notify_all_friends(lc,presence_mode);
3364                 /*
3365                    Improve the use of all LINPHONE_STATUS available.
3366                    !TODO Do not mix "presence status" with "answer status code"..
3367                    Use correct parameter to follow sip_if_match/sip_etag.
3368                  */
3369                 linphone_core_send_publish(lc,presence_mode);
3370         }
3371         lc->presence_mode=presence_mode;
3372 }
3373
3374 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3375         return lc->presence_mode;
3376 }
3377
3378 /**
3379  * Get playback sound level in 0-100 scale.
3380  *
3381  * @ingroup media_parameters
3382 **/
3383 int linphone_core_get_play_level(LinphoneCore *lc)
3384 {
3385         return lc->sound_conf.play_lev;
3386 }
3387
3388 /**
3389  * Get ring sound level in 0-100 scale
3390  *
3391  * @ingroup media_parameters
3392 **/
3393 int linphone_core_get_ring_level(LinphoneCore *lc)
3394 {
3395         return lc->sound_conf.ring_lev;
3396 }
3397
3398 /**
3399  * Get sound capture level in 0-100 scale
3400  *
3401  * @ingroup media_parameters
3402 **/
3403 int linphone_core_get_rec_level(LinphoneCore *lc){
3404         return lc->sound_conf.rec_lev;
3405 }
3406
3407 /**
3408  * Set sound ring level in 0-100 scale
3409  *
3410  * @ingroup media_parameters
3411 **/
3412 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3413         MSSndCard *sndcard;
3414         lc->sound_conf.ring_lev=level;
3415         sndcard=lc->sound_conf.ring_sndcard;
3416         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3417 }
3418
3419 /**
3420  * Allow to control microphone level:  gain in db
3421  *
3422  * @ingroup media_parameters
3423 **/
3424 void linphone_core_set_mic_gain_db (LinphoneCore *lc, float gaindb){
3425         float gain=gaindb;
3426         LinphoneCall *call=linphone_core_get_current_call (lc);
3427         AudioStream *st;
3428
3429         lc->sound_conf.soft_mic_lev=gaindb;
3430
3431         if (linphone_core_ready(lc)){
3432                 lp_config_set_float(lc->config,"sound","mic_gain_db",lc->sound_conf.soft_mic_lev);
3433         }
3434
3435         if (call==NULL || (st=call->audiostream)==NULL){
3436                 ms_message("linphone_core_set_mic_gain_db(): no active call.");
3437                 return;
3438         }
3439         if (st->volrecv){
3440                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_DB_GAIN,&gain);
3441         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3442 }
3443
3444 /**
3445  * Get microphone gain in db.
3446  *
3447  * @ingroup media_parameters
3448 **/
3449 float linphone_core_get_mic_gain_db(LinphoneCore *lc) {
3450         return lc->sound_conf.soft_mic_lev;
3451 }
3452
3453 /**
3454  * Allow to control play level before entering sound card:  gain in db
3455  *
3456  * @ingroup media_parameters
3457 **/
3458 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3459         float gain=gaindb;
3460         LinphoneCall *call=linphone_core_get_current_call (lc);
3461         AudioStream *st;
3462
3463         lc->sound_conf.soft_play_lev=gaindb;
3464         if (linphone_core_ready(lc)){
3465                 lp_config_set_float(lc->config,"sound","playback_gain_db",lc->sound_conf.soft_play_lev);
3466         }
3467
3468         if (call==NULL || (st=call->audiostream)==NULL){
3469                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3470                 return;
3471         }
3472         if (st->volrecv){
3473                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3474         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3475 }
3476
3477 /**
3478  * Get playback gain in db before entering  sound card.
3479  *
3480  * @ingroup media_parameters
3481 **/
3482 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3483         return lc->sound_conf.soft_play_lev;
3484 }
3485
3486 /**
3487  * Set sound playback level in 0-100 scale
3488  *
3489  * @ingroup media_parameters
3490 **/
3491 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3492         MSSndCard *sndcard;
3493         lc->sound_conf.play_lev=level;
3494         sndcard=lc->sound_conf.play_sndcard;
3495         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3496 }
3497
3498 /**
3499  * Set sound capture level in 0-100 scale
3500  *
3501  * @ingroup media_parameters
3502 **/
3503 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3504 {
3505         MSSndCard *sndcard;
3506         lc->sound_conf.rec_lev=level;
3507         sndcard=lc->sound_conf.capt_sndcard;
3508         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3509 }
3510
3511 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3512         MSSndCard *sndcard=NULL;
3513         if (devid!=NULL){
3514                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3515                 if (sndcard!=NULL &&
3516                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3517                         ms_warning("%s card does not have the %s capability, ignoring.",
3518                                 devid,
3519                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3520                         sndcard=NULL;
3521                 }
3522         }
3523         if (sndcard==NULL) {
3524                 /* get a card that has read+write capabilities */
3525                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3526                 /* otherwise refine to the first card having the right capability*/
3527                 if (sndcard==NULL){
3528                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3529                         for(;elem!=NULL;elem=elem->next){
3530                                 sndcard=(MSSndCard*)elem->data;
3531                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3532                         }
3533                 }
3534                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3535                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3536                         if (elem) sndcard=(MSSndCard*)elem->data;
3537         }
3538         }
3539         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3540         return sndcard;
3541 }
3542
3543 /**
3544  * Returns true if the specified sound device can capture sound.
3545  *
3546  * @ingroup media_parameters
3547  * @param lc The LinphoneCore object
3548  * @param devid the device name as returned by linphone_core_get_sound_devices()
3549 **/
3550 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3551         MSSndCard *sndcard;
3552         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3553         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3554         return FALSE;
3555 }
3556
3557 /**
3558  * Returns true if the specified sound device can play sound.
3559  *
3560  * @ingroup media_parameters
3561  * @param lc The LinphoneCore object
3562  * @param devid the device name as returned by linphone_core_get_sound_devices()
3563 **/
3564 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3565         MSSndCard *sndcard;
3566         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3567         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3568         return FALSE;
3569 }
3570
3571 /**
3572  * Sets the sound device used for ringing.
3573  *
3574  * @ingroup media_parameters
3575  * @param lc The LinphoneCore object
3576  * @param devid the device name as returned by linphone_core_get_sound_devices()
3577 **/
3578 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3579         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3580         lc->sound_conf.ring_sndcard=card;
3581         if (card && linphone_core_ready(lc))
3582                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3583         return 0;
3584 }
3585
3586 /**
3587  * Sets the sound device used for playback.
3588  *
3589  * @ingroup media_parameters
3590  * @param lc The LinphoneCore object
3591  * @param devid the device name as returned by linphone_core_get_sound_devices()
3592 **/
3593 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3594         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3595         lc->sound_conf.play_sndcard=card;
3596         if (card &&  linphone_core_ready(lc))
3597                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3598         return 0;
3599 }
3600
3601 /**
3602  * Sets the sound device used for capture.
3603  *
3604  * @ingroup media_parameters
3605  * @param lc The LinphoneCore object
3606  * @param devid the device name as returned by linphone_core_get_sound_devices()
3607 **/
3608 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3609         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3610         lc->sound_conf.capt_sndcard=card;
3611         if (card &&  linphone_core_ready(lc))
3612                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3613         return 0;
3614 }
3615
3616 /**
3617  * Returns the name of the currently assigned sound device for ringing.
3618  *
3619  * @ingroup media_parameters
3620  * @param lc The LinphoneCore object
3621 **/
3622 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3623 {
3624         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3625         return NULL;
3626 }
3627
3628 /**
3629  * Returns the name of the currently assigned sound device for playback.
3630  *
3631  * @ingroup media_parameters
3632  * @param lc The LinphoneCore object
3633 **/
3634 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3635 {
3636         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3637 }
3638
3639 /**
3640  * Returns the name of the currently assigned sound device for capture.
3641  *
3642  * @ingroup media_parameters
3643  * @param lc The LinphoneCore object
3644 **/
3645 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3646 {
3647         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3648 }
3649
3650 /**
3651  * Returns an unmodifiable array of available sound devices.
3652  *
3653  * The array is NULL terminated.
3654  *
3655  * @ingroup media_parameters
3656  * @param lc The LinphoneCore object
3657 **/
3658 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3659         return lc->sound_conf.cards;
3660 }
3661
3662 /**
3663  * Returns an unmodifiable array of available video capture devices.
3664  *
3665  * @ingroup media_parameters
3666  * The array is NULL terminated.
3667 **/
3668 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3669         return lc->video_conf.cams;
3670 }
3671
3672 /**
3673  * Update detection of sound devices.
3674  *
3675  * Use this function when the application is notified of USB plug events, so that
3676  * list of available hardwares for sound playback and capture is updated.
3677  **/
3678 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3679         const char *ringer,*playback,*capture;
3680         ringer=linphone_core_get_ringer_device(lc);
3681         playback=linphone_core_get_playback_device(lc);
3682         capture=linphone_core_get_capture_device(lc);
3683         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3684         build_sound_devices_table(lc);
3685         linphone_core_set_ringer_device(lc,ringer);
3686         linphone_core_set_playback_device(lc,playback);
3687         linphone_core_set_capture_device(lc,capture);
3688 }
3689
3690 /**
3691  * Update detection of camera devices.
3692  *
3693  * Use this function when the application is notified of USB plug events, so that
3694  * list of available hardwares for video capture is updated.
3695  **/
3696 void linphone_core_reload_video_devices(LinphoneCore *lc){
3697         const char *devid;
3698         devid=linphone_core_get_video_device(lc);
3699         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3700         build_video_devices_table(lc);
3701         linphone_core_set_video_device(lc,devid);
3702 }
3703
3704 char linphone_core_get_sound_source(LinphoneCore *lc)
3705 {
3706         return lc->sound_conf.source;
3707 }
3708
3709 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3710 {
3711         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3712         lc->sound_conf.source=source;
3713         if (!sndcard) return;
3714         switch(source){
3715                 case 'm':
3716                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3717                         break;
3718                 case 'l':
3719                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3720                         break;
3721         }
3722
3723 }
3724
3725
3726 /**
3727  * Sets the path to a wav file used for ringing.
3728  *
3729  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3730  * @param lc The LinphoneCore object
3731  *
3732  * @ingroup media_parameters
3733 **/
3734 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3735         if (lc->sound_conf.local_ring!=0){
3736                 ms_free(lc->sound_conf.local_ring);
3737                 lc->sound_conf.local_ring=NULL;
3738         }
3739         if (path)
3740                 lc->sound_conf.local_ring=ms_strdup(path);
3741         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3742                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3743 }
3744
3745 /**
3746  * Returns the path to the wav file used for ringing.
3747  *
3748  * @param lc The LinphoneCore object
3749  * @ingroup media_parameters
3750 **/
3751 const char *linphone_core_get_ring(const LinphoneCore *lc){
3752         return lc->sound_conf.local_ring;
3753 }
3754
3755 /**
3756  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3757  *
3758  * @param path
3759  * @param lc The LinphoneCore object
3760  *
3761  * @ingroup media_parameters
3762 **/
3763 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3764         sal_set_root_ca(lc->sal, path);
3765 }
3766
3767 /**
3768  * Gets the path to a file or folder containing trusted root CAs (PEM format)
3769  *
3770  * @param lc The LinphoneCore object
3771  *
3772  * @ingroup media_parameters
3773 **/
3774 const char *linphone_core_get_root_ca(LinphoneCore *lc){
3775         return sal_get_root_ca(lc->sal);
3776 }
3777
3778 /**
3779  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3780 **/
3781 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3782         sal_verify_server_certificates(lc->sal,yesno);
3783 }
3784
3785 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3786         LinphoneCore *lc=(LinphoneCore*)ud;
3787         lc->preview_finished=1;
3788 }
3789
3790 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3791 {
3792         if (lc->ringstream!=0){
3793                 ms_warning("Cannot start ring now,there's already a ring being played");
3794                 return -1;
3795         }
3796         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3797         lc->preview_finished=0;
3798         if (lc->sound_conf.ring_sndcard!=NULL){
3799                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3800                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3801         }
3802         return 0;
3803 }
3804
3805 /**
3806  * Sets the path to a wav file used for ringing back.
3807  *
3808  * Ringback means the ring that is heard when it's ringing at the remote party.
3809  * The file must be a wav 16bit linear.
3810  *
3811  * @ingroup media_parameters
3812 **/
3813 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3814         if (lc->sound_conf.remote_ring!=0){
3815                 ms_free(lc->sound_conf.remote_ring);
3816         }
3817         lc->sound_conf.remote_ring=ms_strdup(path);
3818 }
3819
3820 /**
3821  * Returns the path to the wav file used for ringing back.
3822  *
3823  * @ingroup media_parameters
3824 **/
3825 const char * linphone_core_get_ringback(const LinphoneCore *lc){
3826         return lc->sound_conf.remote_ring;
3827 }
3828
3829 /**
3830  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
3831  *
3832  * @ingroup media_parameters
3833 **/
3834 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
3835         lc->sound_conf.ec=val;
3836         if ( linphone_core_ready(lc))
3837                 lp_config_set_int(lc->config,"sound","echocancellation",val);
3838 }
3839
3840
3841 /**
3842  * Returns TRUE if echo cancellation is enabled.
3843  *
3844  * @ingroup media_parameters
3845 **/
3846 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
3847         return lc->sound_conf.ec;
3848 }
3849
3850 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
3851         lc->sound_conf.ea=val;
3852 }
3853
3854 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
3855         return lc->sound_conf.ea;
3856 }
3857
3858 /**
3859  * Mutes or unmutes the local microphone.
3860  *
3861  * @ingroup media_parameters
3862 **/
3863 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
3864         LinphoneCall *call=linphone_core_get_current_call(lc);
3865         AudioStream *st=NULL;
3866         if (linphone_core_is_in_conference(lc)){
3867                 lc->conf_ctx.local_muted=val;
3868                 st=lc->conf_ctx.local_participant;
3869         }else if (call==NULL){
3870                 ms_warning("linphone_core_mute_mic(): No current call !");
3871                 return;
3872         }else{
3873                 st=call->audiostream;
3874                 call->audio_muted=val;
3875         }
3876         if (st!=NULL){
3877                 audio_stream_set_mic_gain(st,
3878                         (val==TRUE) ? 0 : pow(10,lc->sound_conf.soft_mic_lev/10));
3879                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
3880                         audio_stream_mute_rtp(st,val);
3881                 }
3882
3883         }
3884 }
3885 /**
3886  * Returns whether microphone is muted.
3887 **/
3888 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
3889         LinphoneCall *call=linphone_core_get_current_call(lc);
3890         if (linphone_core_is_in_conference(lc)){
3891                 return lc->conf_ctx.local_muted;
3892         }else if (call==NULL){
3893                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3894                 return FALSE;
3895         }
3896         return call->audio_muted;
3897 }
3898
3899 // returns rtp transmission status for an active stream
3900 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
3901 // was set on then rtp transmission is also muted
3902 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
3903         LinphoneCall *call=linphone_core_get_current_call(lc);
3904         if (call==NULL){
3905                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3906                 return FALSE;
3907         }
3908         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
3909                 return call->audio_muted;
3910         }
3911         return FALSE;
3912 }
3913
3914 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
3915         lc->sound_conf.agc=val;
3916 }
3917
3918 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
3919         return lc->sound_conf.agc;
3920 }
3921
3922 /**
3923  * Send the specified dtmf.
3924  *
3925  * @ingroup media_parameters
3926  * This function only works during calls. The dtmf is automatically played to the user.
3927  * @param lc The LinphoneCore object
3928  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
3929  *
3930 **/
3931 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
3932 {
3933         LinphoneCall *call=linphone_core_get_current_call(lc);
3934         if (call==NULL){
3935                 ms_warning("linphone_core_send_dtmf(): no active call");
3936                 return;
3937         }
3938         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
3939         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
3940         {
3941                 /* In Band DTMF */
3942                 if (call->audiostream!=NULL){
3943                         audio_stream_send_dtmf(call->audiostream,dtmf);
3944                 }
3945                 else
3946                 {
3947                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
3948                 }
3949         }
3950         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
3951                 /* Out of Band DTMF (use INFO method) */
3952                 sal_call_send_dtmf(call->op,dtmf);
3953         }
3954 }
3955
3956 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
3957         if (lc->net_conf.stun_server!=NULL)
3958                 ms_free(lc->net_conf.stun_server);
3959         if (server)
3960                 lc->net_conf.stun_server=ms_strdup(server);
3961         else lc->net_conf.stun_server=NULL;
3962         if (linphone_core_ready(lc))
3963                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
3964 }
3965
3966 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
3967         return lc->net_conf.stun_server;
3968 }
3969
3970 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
3971         return lc->net_conf.relay;
3972 }
3973
3974 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
3975         if (lc->net_conf.relay!=NULL){
3976                 ms_free(lc->net_conf.relay);
3977                 lc->net_conf.relay=NULL;
3978         }
3979         if (addr){
3980                 lc->net_conf.relay=ms_strdup(addr);
3981         }
3982         return 0;
3983 }
3984
3985 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
3986 {
3987         if (lc->net_conf.nat_address!=NULL){
3988                 ms_free(lc->net_conf.nat_address);
3989         }
3990         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
3991         else lc->net_conf.nat_address=NULL;
3992         if (lc->sip_conf.contact) update_primary_contact(lc);
3993 }
3994
3995 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
3996         return lc->net_conf.nat_address;
3997 }
3998
3999 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
4000 {
4001         struct sockaddr_storage ss;
4002         socklen_t ss_len;
4003         int error;
4004         char ipstring [INET6_ADDRSTRLEN];
4005
4006         if (lc->net_conf.nat_address==NULL) return NULL;
4007
4008         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
4009                 return lc->net_conf.nat_address;
4010         }
4011
4012         error = getnameinfo((struct sockaddr *)&ss, ss_len,
4013                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
4014         if (error) {
4015                 return lc->net_conf.nat_address;
4016         }
4017
4018         if (lc->net_conf.nat_address_ip!=NULL){
4019                 ms_free(lc->net_conf.nat_address_ip);
4020         }
4021         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
4022         return lc->net_conf.nat_address_ip;
4023 }
4024
4025 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
4026         lc->net_conf.firewall_policy=pol;
4027         if (lc->sip_conf.contact) update_primary_contact(lc);
4028         if (linphone_core_ready(lc))
4029                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
4030 }
4031
4032 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
4033         return lc->net_conf.firewall_policy;
4034 }
4035
4036 /**
4037  * Get the list of call logs (past calls).
4038  *
4039  * @ingroup call_logs
4040 **/
4041 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
4042         return lc->call_logs;
4043 }
4044
4045 /**
4046  * Erase the call log.
4047  *
4048  * @ingroup call_logs
4049 **/
4050 void linphone_core_clear_call_logs(LinphoneCore *lc){
4051         lc->missed_calls=0;
4052         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4053         lc->call_logs=ms_list_free(lc->call_logs);
4054         call_logs_write_to_config_file(lc);
4055 }
4056
4057 /**
4058  * Returns number of missed calls.
4059  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
4060 **/
4061 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
4062         return lc->missed_calls;
4063 }
4064
4065 /**
4066  * Resets the counter of missed calls.
4067 **/
4068 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
4069         lc->missed_calls=0;
4070 }
4071
4072 /**
4073  * Remove a specific call log from call history list.
4074  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
4075  * @param lc the linphone core object
4076  * @param a LinphoneCallLog object.
4077 **/
4078 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
4079         lc->call_logs = ms_list_remove(lc->call_logs, cl);
4080         call_logs_write_to_config_file(lc);
4081         linphone_call_log_destroy(cl);
4082 }
4083
4084 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
4085 #ifdef VIDEO_ENABLED
4086         if (val){
4087                 if (lc->previewstream==NULL){
4088                         lc->previewstream=video_preview_new();
4089                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
4090                         if (lc->video_conf.displaytype)
4091                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
4092                         if (lc->preview_window_id!=0)
4093                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
4094                         video_preview_start(lc->previewstream,lc->video_conf.device);
4095                 }
4096         }else{
4097                 if (lc->previewstream!=NULL){
4098                         video_preview_stop(lc->previewstream);
4099                         lc->previewstream=NULL;
4100                 }
4101         }
4102 #endif
4103 }
4104
4105 /**
4106  * Enables video globally.
4107  *
4108  * @ingroup media_parameters
4109  * This function does not have any effect during calls. It just indicates LinphoneCore to
4110  * initiate future calls with video or not. The two boolean parameters indicate in which
4111  * direction video is enabled. Setting both to false disables video entirely.
4112  *
4113  * @param lc The LinphoneCore object
4114  * @param vcap_enabled indicates whether video capture is enabled
4115  * @param display_enabled indicates whether video display should be shown
4116  *
4117 **/
4118 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
4119 #ifndef VIDEO_ENABLED
4120         if (vcap_enabled || display_enabled)
4121                 ms_warning("This version of linphone was built without video support.");
4122 #endif
4123         lc->video_conf.capture=vcap_enabled;
4124         lc->video_conf.display=display_enabled;
4125         if (linphone_core_ready(lc)){
4126                 lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4127                 lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4128         }
4129         /* need to re-apply network bandwidth settings*/
4130         linphone_core_set_download_bandwidth(lc,
4131                 linphone_core_get_download_bandwidth(lc));
4132         linphone_core_set_upload_bandwidth(lc,
4133                 linphone_core_get_upload_bandwidth(lc));
4134 }
4135
4136 bool_t linphone_core_video_supported(LinphoneCore *lc){
4137 #ifdef VIDEO_ENABLED
4138         return TRUE;
4139 #else
4140         return FALSE;
4141 #endif
4142 }
4143
4144 /**
4145  * Returns TRUE if video is enabled, FALSE otherwise.
4146  * @ingroup media_parameters
4147 **/
4148 bool_t linphone_core_video_enabled(LinphoneCore *lc){
4149         return (lc->video_conf.display || lc->video_conf.capture);
4150 }
4151
4152 /**
4153  * Sets the default policy for video.
4154  * This policy defines whether:
4155  * - video shall be initiated by default for outgoing calls
4156  * - video shall be accepter by default for incoming calls
4157  * @ingroup media_parameters
4158 **/
4159 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
4160         lc->video_policy=*policy;
4161         if (linphone_core_ready(lc)){
4162                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
4163                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
4164         }
4165 }
4166
4167 /**
4168  * Get the default policy for video.
4169  * See linphone_core_set_video_policy() for more details.
4170  * @ingroup media_parameters
4171 **/
4172 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
4173         return &lc->video_policy;
4174 }
4175
4176 /**
4177  * Controls video preview enablement.
4178  *
4179  * @ingroup media_parameters
4180  * Video preview refers to the action of displaying the local webcam image
4181  * to the user while not in call.
4182 **/
4183 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
4184         lc->video_conf.show_local=val;
4185         if (linphone_core_ready(lc))
4186                 lp_config_set_int(lc->config,"video","show_local",val);
4187 }
4188
4189 /**
4190  * Returns TRUE if video previewing is enabled.
4191  * @ingroup media_parameters
4192 **/
4193 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
4194         return lc->video_conf.show_local;
4195 }
4196
4197 /**
4198  * Enables or disable self view during calls.
4199  *
4200  * @ingroup media_parameters
4201  * Self-view refers to having local webcam image inserted in corner
4202  * of the video window during calls.
4203  * This function works at any time, including during calls.
4204 **/
4205 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
4206 #ifdef VIDEO_ENABLED
4207         LinphoneCall *call=linphone_core_get_current_call (lc);
4208         lc->video_conf.selfview=val;
4209         if (call && call->videostream){
4210                 video_stream_enable_self_view(call->videostream,val);
4211         }
4212         if (linphone_core_ready(lc)){
4213                 lp_config_set_int(lc->config,"video","self_view",val);
4214         }
4215 #endif
4216 }
4217
4218 /**
4219  * Returns TRUE if self-view is enabled, FALSE otherwise.
4220  *
4221  * @ingroup media_parameters
4222  *
4223  * Refer to linphone_core_enable_self_view() for details.
4224 **/
4225 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
4226         return lc->video_conf.selfview;
4227 }
4228
4229 /**
4230  * Sets the active video device.
4231  *
4232  * @ingroup media_parameters
4233  * @param lc The LinphoneCore object
4234  * @param id the name of the video device as returned by linphone_core_get_video_devices()
4235 **/
4236 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
4237         MSWebCam *olddev=lc->video_conf.device;
4238         const char *vd;
4239         if (id!=NULL){
4240                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
4241                 if (lc->video_conf.device==NULL){
4242                         ms_warning("Could not find video device %s",id);
4243                 }
4244         }
4245         if (lc->video_conf.device==NULL)
4246                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
4247         if (olddev!=NULL && olddev!=lc->video_conf.device){
4248                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
4249         }
4250         if ( linphone_core_ready(lc) && lc->video_conf.device){
4251                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
4252                 if (vd && strstr(vd,"Static picture")!=NULL){
4253                         vd=NULL;
4254                 }
4255                 lp_config_set_string(lc->config,"video","device",vd);
4256         }
4257         return 0;
4258 }
4259
4260 /**
4261  * Returns the name of the currently active video device.
4262  *
4263  * @param lc The LinphoneCore object
4264  * @ingroup media_parameters
4265 **/
4266 const char *linphone_core_get_video_device(const LinphoneCore *lc){
4267         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
4268         return NULL;
4269 }
4270
4271 #ifdef VIDEO_ENABLED
4272 static VideoStream * get_active_video_stream(LinphoneCore *lc){
4273         VideoStream *vs = NULL;
4274         LinphoneCall *call=linphone_core_get_current_call (lc);
4275         /* Select the video stream from the call in the first place */
4276         if (call && call->videostream) {
4277                 vs = call->videostream;
4278         }
4279         /* If not in call, select the video stream from the preview */
4280         if (vs == NULL && lc->previewstream) {
4281                 vs = lc->previewstream;
4282         }
4283         return vs;
4284 }
4285 #endif
4286
4287 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
4288 #ifdef VIDEO_ENABLED
4289         VideoStream *vs=get_active_video_stream(lc);
4290         /* If we have a video stream (either preview, either from call), we
4291                  have a source and it is using the static picture filter, then
4292                  force the filter to use that picture. */
4293         if (vs && vs->source) {
4294                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4295                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4296                                                                                                                 (void *)path);
4297                 }
4298         }
4299         /* Tell the static image filter to use that image from now on so
4300                  that the image will be used next time it has to be read */
4301         ms_static_image_set_default_image(path);
4302 #else
4303         ms_warning("Video support not compiled.");
4304 #endif
4305         return 0;
4306 }
4307
4308 const char *linphone_core_get_static_picture(LinphoneCore *lc) {
4309         const char *path=NULL;
4310 #ifdef VIDEO_ENABLED
4311         path=ms_static_image_get_default_image();
4312 #else
4313         ms_warning("Video support not compiled.");
4314 #endif
4315         return path;
4316 }
4317
4318 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4319 #ifdef VIDEO_ENABLED
4320         VideoStream *vs = NULL;
4321
4322         vs=get_active_video_stream(lc);
4323
4324         /* If we have a video stream (either preview, either from call), we
4325                  have a source and it is using the static picture filter, then
4326                  force the filter to use that picture. */
4327         if (vs && vs->source) {
4328                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4329                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4330                 }
4331         }
4332 #else
4333         ms_warning("Video support not compiled.");
4334 #endif
4335         return 0;
4336 }
4337
4338 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4339 #ifdef VIDEO_ENABLED
4340         VideoStream *vs = NULL;
4341         vs=get_active_video_stream(lc);
4342         /* If we have a video stream (either preview, either from call), we
4343                  have a source and it is using the static picture filter, then
4344                  force the filter to use that picture. */
4345         if (vs && vs->source) {
4346                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4347
4348                         float fps;
4349
4350                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4351                         return fps;
4352                 }
4353         }
4354 #else
4355         ms_warning("Video support not compiled.");
4356 #endif
4357         return 0;
4358 }
4359
4360 /**
4361  * Returns the native window handle of the video window, casted as an unsigned long.
4362  *
4363  * @ingroup media_parameters
4364 **/
4365 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4366 #ifdef VIDEO_ENABLED
4367         LinphoneCall *call=linphone_core_get_current_call (lc);
4368         if (call && call->videostream)
4369                 return video_stream_get_native_window_id(call->videostream);
4370         if (lc->previewstream)
4371                 return video_stream_get_native_window_id(lc->previewstream);
4372 #endif
4373         return lc->video_window_id;
4374 }
4375
4376 /**@ingroup media_parameters
4377  * Set the native video window id where the video is to be displayed.
4378  * If not set the core will create its own window.
4379 **/
4380 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4381 #ifdef VIDEO_ENABLED
4382         LinphoneCall *call=linphone_core_get_current_call(lc);
4383         lc->video_window_id=id;
4384         if (call!=NULL && call->videostream){
4385                 video_stream_set_native_window_id(call->videostream,id);
4386         }
4387 #endif
4388 }
4389
4390 /**
4391  * Returns the native window handle of the video preview window, casted as an unsigned long.
4392  *
4393  * @ingroup media_parameters
4394 **/
4395 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4396 #ifdef VIDEO_ENABLED
4397         LinphoneCall *call=linphone_core_get_current_call (lc);
4398         if (call && call->videostream)
4399                 return video_stream_get_native_preview_window_id(call->videostream);
4400         if (lc->previewstream)
4401                 return video_preview_get_native_window_id(lc->previewstream);
4402 #endif
4403         return lc->preview_window_id;
4404 }
4405
4406 /**
4407  * @ingroup media_parameters
4408  * Set the native window id where the preview video (local camera) is to be displayed.
4409  * This has to be used in conjonction with linphone_core_use_preview_window().
4410  * If not set the core will create its own window.
4411 **/
4412 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4413         lc->preview_window_id=id;
4414 #ifdef VIDEO_ENABLED
4415         LinphoneCall *call=linphone_core_get_current_call(lc);
4416         if (call!=NULL && call->videostream){
4417                 video_stream_set_native_preview_window_id(call->videostream,id);
4418         }else if (lc->previewstream){
4419                 video_preview_set_native_window_id(lc->previewstream,id);
4420         }
4421 #endif
4422 }
4423
4424 /**
4425  * Can be used to disable video showing to free XV port
4426 **/
4427 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4428 #ifdef VIDEO_ENABLED
4429         ms_error("linphone_core_show_video %d", show);
4430         LinphoneCall *call=linphone_core_get_current_call(lc);
4431         if (call!=NULL && call->videostream){
4432                 video_stream_show_video(call->videostream,show);
4433         }
4434 #endif
4435 }
4436
4437 /**
4438  * Tells the core to use a separate window for local camera preview video, instead of
4439  * inserting local view within the remote video window.
4440  *
4441 **/
4442 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4443         lc->use_preview_window=yesno;
4444 }
4445 /**
4446  * @ingroup media_parameters
4447  *returns current device orientation
4448  */
4449 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4450         return lc->device_rotation;
4451 }
4452 /**
4453  * @ingroup media_parameters
4454  * Tells the core the device current orientation. This can be used by capture filters
4455  * on mobile devices to select between portrait/landscape mode and to produce properly
4456  * oriented images. The exact meaning of the value in rotation if left to each device
4457  * specific implementations.
4458  *@param lc  object.
4459  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4460  *
4461 **/
4462 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4463 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4464         lc->device_rotation = rotation;
4465 #ifdef VIDEO_ENABLED
4466         LinphoneCall *call=linphone_core_get_current_call(lc);
4467         if (call!=NULL && call->videostream){
4468                 video_stream_set_device_rotation(call->videostream,rotation);
4469         }
4470 #endif
4471 }
4472
4473 static MSVideoSizeDef supported_resolutions[]={
4474 #ifdef ENABLE_HD
4475         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4476         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4477 #endif
4478         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4479         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4480         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4481         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4482         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4483         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4484         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4485         {       {0,0}                   ,       NULL    }
4486 };
4487
4488 /**
4489  * Returns the zero terminated table of supported video resolutions.
4490  *
4491  * @ingroup media_parameters
4492 **/
4493 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4494         return supported_resolutions;
4495 }
4496
4497 static MSVideoSize video_size_get_by_name(const char *name){
4498         MSVideoSizeDef *pdef=supported_resolutions;
4499         MSVideoSize null_vsize={0,0};
4500         for(;pdef->name!=NULL;pdef++){
4501                 if (strcasecmp(name,pdef->name)==0){
4502                         return pdef->vsize;
4503                 }
4504         }
4505         ms_warning("Video resolution %s is not supported in linphone.",name);
4506         return null_vsize;
4507 }
4508
4509 static const char *video_size_get_name(MSVideoSize vsize){
4510         MSVideoSizeDef *pdef=supported_resolutions;
4511         for(;pdef->name!=NULL;pdef++){
4512                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4513                         return pdef->name;
4514                 }
4515         }
4516         return NULL;
4517 }
4518
4519 static bool_t video_size_supported(MSVideoSize vsize){
4520         if (video_size_get_name(vsize)) return TRUE;
4521         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4522         return FALSE;
4523 }
4524
4525 /**
4526  * Sets the preferred video size.
4527  *
4528  * @ingroup media_parameters
4529  * This applies only to the stream that is captured and sent to the remote party,
4530  * since we accept all standard video size on the receive path.
4531 **/
4532 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4533         if (video_size_supported(vsize)){
4534                 MSVideoSize oldvsize=lc->video_conf.vsize;
4535                 lc->video_conf.vsize=vsize;
4536                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4537                         toggle_video_preview(lc,FALSE);
4538                         toggle_video_preview(lc,TRUE);
4539                 }
4540                 if ( linphone_core_ready(lc))
4541                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4542         }
4543 }
4544
4545 /**
4546  * Sets the preferred video size by its name.
4547  *
4548  * @ingroup media_parameters
4549  * This is identical to linphone_core_set_preferred_video_size() except
4550  * that it takes the name of the video resolution as input.
4551  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4552 **/
4553 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4554         MSVideoSize vsize=video_size_get_by_name(name);
4555         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4556         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4557         else linphone_core_set_preferred_video_size(lc,default_vsize);
4558 }
4559
4560 /**
4561  * Returns the current preferred video size for sending.
4562  *
4563  * @ingroup media_parameters
4564 **/
4565 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4566         return lc->video_conf.vsize;
4567 }
4568
4569 /**
4570  * Ask the core to stream audio from and to files, instead of using the soundcard.
4571 **/
4572 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4573         lc->use_files=yesno;
4574 }
4575
4576 /**
4577  * Sets a wav file to be played when putting somebody on hold,
4578  * or when files are used instead of soundcards (see linphone_core_use_files()).
4579  *
4580  * The file must be a 16 bit linear wav file.
4581 **/
4582 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4583         LinphoneCall *call=linphone_core_get_current_call(lc);
4584         if (lc->play_file!=NULL){
4585                 ms_free(lc->play_file);
4586                 lc->play_file=NULL;
4587         }
4588         if (file!=NULL) {
4589                 lc->play_file=ms_strdup(file);
4590                 if (call && call->audiostream && call->audiostream->ms.ticker)
4591                         audio_stream_play(call->audiostream,file);
4592         }
4593 }
4594
4595
4596 /**
4597  * Sets a wav file where incoming stream is to be recorded,
4598  * when files are used instead of soundcards (see linphone_core_use_files()).
4599  *
4600  * The file must be a 16 bit linear wav file.
4601 **/
4602 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4603         LinphoneCall *call=linphone_core_get_current_call(lc);
4604         if (lc->rec_file!=NULL){
4605                 ms_free(lc->rec_file);
4606                 lc->rec_file=NULL;
4607         }
4608         if (file!=NULL) {
4609                 lc->rec_file=ms_strdup(file);
4610                 if (call && call->audiostream)
4611                         audio_stream_record(call->audiostream,file);
4612         }
4613 }
4614
4615
4616 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4617         LinphoneCall *call=linphone_core_get_current_call (lc);
4618         AudioStream *stream=NULL;
4619         if (call){
4620                 stream=call->audiostream;
4621         }else if (linphone_core_is_in_conference(lc)){
4622                 stream=lc->conf_ctx.local_participant;
4623         }
4624         if (stream){
4625                 return stream->dtmfgen;
4626         }
4627         if (lc->ringstream==NULL){
4628                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4629                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4630                 if (ringcard == NULL)
4631                         return NULL;
4632
4633                 lc->ringstream=ring_start(NULL,0,ringcard);
4634                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4635                 lc->dmfs_playing_start_time=time(NULL);
4636         }else{
4637                 if (lc->dmfs_playing_start_time!=0)
4638                         lc->dmfs_playing_start_time=time(NULL);
4639         }
4640         return lc->ringstream->gendtmf;
4641 }
4642
4643 /**
4644  * @ingroup media_parameters
4645  * Plays a dtmf sound to the local user.
4646  * @param lc #LinphoneCore
4647  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4648  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4649 **/
4650 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4651         MSFilter *f=get_dtmf_gen(lc);
4652         if (f==NULL){
4653                 ms_error("No dtmf generator at this time !");
4654                 return;
4655         }
4656
4657         if (duration_ms>0)
4658                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4659         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4660 }
4661
4662 /**
4663  * @ingroup media_parameters
4664  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4665  * @param lc #LinphoneCore
4666 **/
4667 void linphone_core_play_tone(LinphoneCore *lc){
4668         MSFilter *f=get_dtmf_gen(lc);
4669         MSDtmfGenCustomTone def;
4670         if (f==NULL){
4671                 ms_error("No dtmf generator at this time !");
4672                 return;
4673         }
4674         def.duration=300;
4675         def.frequency=500;
4676         def.amplitude=1;
4677         def.interval=2000;
4678         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4679 }
4680
4681 /**
4682  * @ingroup media_parameters
4683  *
4684  * Stops playing a dtmf started by linphone_core_play_dtmf().
4685 **/
4686 void linphone_core_stop_dtmf(LinphoneCore *lc){
4687         MSFilter *f=get_dtmf_gen(lc);
4688         if (f!=NULL)
4689                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4690 }
4691
4692
4693
4694 /**
4695  * Retrieves the user pointer that was given to linphone_core_new()
4696  *
4697  * @ingroup initializing
4698 **/
4699 void *linphone_core_get_user_data(LinphoneCore *lc){
4700         return lc->data;
4701 }
4702
4703 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4704         lc->data=userdata;
4705 }
4706
4707 int linphone_core_get_mtu(const LinphoneCore *lc){
4708         return lc->net_conf.mtu;
4709 }
4710
4711 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4712         lc->net_conf.mtu=mtu;
4713         if (mtu>0){
4714                 if (mtu<500){
4715                         ms_error("MTU too small !");
4716                         mtu=500;
4717                 }
4718                 ms_set_mtu(mtu);
4719                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4720         }else ms_set_mtu(0);//use mediastreamer2 default value
4721 }
4722
4723 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4724         lc->wait_cb=cb;
4725         lc->wait_ctx=user_context;
4726 }
4727
4728 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4729         if (lc->wait_cb){
4730                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4731         }
4732 }
4733
4734 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4735         if (lc->wait_cb){
4736                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4737         }else{
4738 #ifdef WIN32
4739                 Sleep(50000);
4740 #else
4741                 usleep(50000);
4742 #endif
4743         }
4744 }
4745
4746 void linphone_core_stop_waiting(LinphoneCore *lc){
4747         if (lc->wait_cb){
4748                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4749         }
4750 }
4751
4752 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4753         lc->rtptf=factories;
4754 }
4755
4756 /**
4757  * Retrieve RTP statistics regarding current call.
4758  * @param local RTP statistics computed locally.
4759  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4760  *
4761  * @note Remote RTP statistics is not implemented yet.
4762  *
4763  * @returns 0 or -1 if no call is running.
4764 **/
4765
4766 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
4767         LinphoneCall *call=linphone_core_get_current_call (lc);
4768         if (call!=NULL){
4769                 if (call->audiostream!=NULL){
4770                         memset(remote,0,sizeof(*remote));
4771                         audio_stream_get_local_rtp_stats (call->audiostream,local);
4772                         return 0;
4773                 }
4774         }
4775         return -1;
4776 }
4777
4778 void net_config_uninit(LinphoneCore *lc)
4779 {
4780         net_config_t *config=&lc->net_conf;
4781
4782         if (config->stun_server!=NULL){
4783                 ms_free(lc->net_conf.stun_server);
4784         }
4785         if (config->nat_address!=NULL){
4786                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
4787                 ms_free(lc->net_conf.nat_address);
4788         }
4789         if (lc->net_conf.nat_address_ip !=NULL){
4790                 ms_free(lc->net_conf.nat_address_ip);
4791         }
4792         lp_config_set_int(lc->config,"net","mtu",config->mtu);
4793 }
4794
4795
4796 void sip_config_uninit(LinphoneCore *lc)
4797 {
4798         MSList *elem;
4799         int i;
4800         sip_config_t *config=&lc->sip_conf;
4801
4802         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
4803         lp_config_set_string(lc->config,"sip","contact",config->contact);
4804         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
4805         lp_config_set_int(lc->config,"sip","in_call_timeout",config->in_call_timeout);
4806         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
4807         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
4808         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
4809         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
4810
4811
4812
4813
4814         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
4815                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
4816                 linphone_proxy_config_edit(cfg);        /* to unregister */
4817         }
4818
4819         for (i=0;i<20;i++){
4820                 sal_iterate(lc->sal);
4821 #ifndef WIN32
4822                 usleep(100000);
4823 #else
4824                 Sleep(100);
4825 #endif
4826         }
4827
4828         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
4829         ms_list_free(config->proxies);
4830         config->proxies=NULL;
4831
4832         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
4833
4834         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
4835         ms_list_free(lc->auth_info);
4836         lc->auth_info=NULL;
4837
4838         sal_uninit(lc->sal);
4839         lc->sal=NULL;
4840
4841         if (lc->sip_conf.guessed_contact)
4842                 ms_free(lc->sip_conf.guessed_contact);
4843         if (config->contact)
4844                 ms_free(config->contact);
4845
4846 }
4847
4848 void rtp_config_uninit(LinphoneCore *lc)
4849 {
4850         rtp_config_t *config=&lc->rtp_conf;
4851         if (config->audio_rtp_min_port == config->audio_rtp_max_port) {
4852                 lp_config_set_int(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port);
4853         } else {
4854                 lp_config_set_range(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port, config->audio_rtp_max_port);
4855         }
4856         if (config->video_rtp_min_port == config->video_rtp_max_port) {
4857                 lp_config_set_int(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port);
4858         } else {
4859                 lp_config_set_range(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port, config->video_rtp_max_port);
4860         }
4861         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
4862         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
4863         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
4864         lp_config_set_int(lc->config,"rtp","audio_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
4865         lp_config_set_int(lc->config,"rtp","video_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
4866 }
4867
4868 static void sound_config_uninit(LinphoneCore *lc)
4869 {
4870         sound_config_t *config=&lc->sound_conf;
4871         ms_free(config->cards);
4872
4873         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
4874         lp_config_set_float(lc->config,"sound","playback_gain_db",config->soft_play_lev);
4875         lp_config_set_float(lc->config,"sound","mic_gain_db",config->soft_mic_lev);
4876
4877         if (config->local_ring) ms_free(config->local_ring);
4878         if (config->remote_ring) ms_free(config->remote_ring);
4879         ms_snd_card_manager_destroy();
4880 }
4881
4882 static void video_config_uninit(LinphoneCore *lc)
4883 {
4884         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
4885         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4886         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4887         if (lc->video_conf.cams)
4888                 ms_free(lc->video_conf.cams);
4889 }
4890
4891 void _linphone_core_codec_config_write(LinphoneCore *lc){
4892         if (linphone_core_ready(lc)){
4893                 PayloadType *pt;
4894                 codecs_config_t *config=&lc->codecs_conf;
4895                 MSList *node;
4896                 char key[50];
4897                 int index;
4898                 index=0;
4899                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
4900                         pt=(PayloadType*)(node->data);
4901                         sprintf(key,"audio_codec_%i",index);
4902                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4903                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4904                         lp_config_set_int(lc->config,key,"channels",pt->channels);
4905                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4906                         index++;
4907                 }
4908                 sprintf(key,"audio_codec_%i",index);
4909                 lp_config_clean_section (lc->config,key);
4910
4911                 index=0;
4912                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
4913                         pt=(PayloadType*)(node->data);
4914                         sprintf(key,"video_codec_%i",index);
4915                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4916                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4917                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4918                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
4919                         index++;
4920                 }
4921                 sprintf(key,"video_codec_%i",index);
4922                 lp_config_clean_section (lc->config,key);
4923         }
4924 }
4925
4926 static void codecs_config_uninit(LinphoneCore *lc)
4927 {
4928         _linphone_core_codec_config_write(lc);
4929         ms_list_free(lc->codecs_conf.audio_codecs);
4930         ms_list_free(lc->codecs_conf.video_codecs);
4931 }
4932
4933 void ui_config_uninit(LinphoneCore* lc)
4934 {
4935         if (lc->friends){
4936                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
4937                 ms_list_free(lc->friends);
4938                 lc->friends=NULL;
4939         }
4940 }
4941
4942 /**
4943  * Returns the LpConfig object used to manage the storage (config) file.
4944  *
4945  * @ingroup misc
4946  * The application can use the LpConfig object to insert its own private
4947  * sections and pairs of key=value in the configuration file.
4948  *
4949 **/
4950 LpConfig *linphone_core_get_config(LinphoneCore *lc){
4951         return lc->config;
4952 }
4953
4954 static void linphone_core_uninit(LinphoneCore *lc)
4955 {
4956         linphone_core_free_hooks(lc);
4957         while(lc->calls)
4958         {
4959                 LinphoneCall *the_call = lc->calls->data;
4960                 linphone_core_terminate_call(lc,the_call);
4961                 linphone_core_iterate(lc);
4962 #ifdef WIN32
4963                 Sleep(50000);
4964 #else
4965                 usleep(50000);
4966 #endif
4967         }
4968
4969 #ifdef BUILD_UPNP
4970         linphone_upnp_context_destroy(lc->upnp);
4971         lc->upnp = NULL;
4972 #endif  //BUILD_UPNP
4973
4974         if (lc->friends)
4975                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
4976         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
4977 #ifdef VIDEO_ENABLED
4978         if (lc->previewstream!=NULL){
4979                 video_preview_stop(lc->previewstream);
4980                 lc->previewstream=NULL;
4981         }
4982 #endif
4983         ms_event_queue_destroy(lc->msevq);
4984         lc->msevq=NULL;
4985         /* save all config */
4986         net_config_uninit(lc);
4987         rtp_config_uninit(lc);
4988         if (lc->ringstream) ring_stop(lc->ringstream);
4989         sound_config_uninit(lc);
4990         video_config_uninit(lc);
4991         codecs_config_uninit(lc);
4992         ui_config_uninit(lc);
4993         sip_config_uninit(lc);
4994         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
4995         lp_config_destroy(lc->config);
4996         lc->config = NULL; /* Mark the config as NULL to block further calls */
4997         sip_setup_unregister_all();
4998
4999         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
5000         lc->call_logs=ms_list_free(lc->call_logs);
5001
5002         ms_list_for_each(lc->last_recv_msg_ids,ms_free);
5003         lc->last_recv_msg_ids=ms_list_free(lc->last_recv_msg_ids);
5004
5005         linphone_core_free_payload_types(lc);
5006         ortp_exit();
5007         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
5008 #ifdef TUNNEL_ENABLED
5009         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
5010 #endif
5011 }
5012
5013 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
5014         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
5015         // second get the list of available proxies
5016         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5017         for(;elem!=NULL;elem=elem->next){
5018                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5019                 if (linphone_proxy_config_register_enabled(cfg) ) {
5020                         if (!isReachable) {
5021                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
5022                         }else{
5023                                 cfg->commit=TRUE;
5024                         }
5025                 }
5026         }
5027         lc->netup_time=curtime;
5028         lc->network_reachable=isReachable;
5029         if(!isReachable) {
5030                 sal_reset_transports(lc->sal);
5031         }
5032 }
5033
5034 void linphone_core_refresh_registers(LinphoneCore* lc) {
5035         const MSList *elem;
5036         if (!lc->network_reachable) {
5037                 ms_warning("Refresh register operation not available (network unreachable)");
5038                 return;
5039         }
5040         elem=linphone_core_get_proxy_config_list(lc);
5041         for(;elem!=NULL;elem=elem->next){
5042                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5043                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
5044                         linphone_proxy_config_refresh_register(cfg);
5045                 }
5046         }
5047 }
5048
5049 void __linphone_core_invalidate_registers(LinphoneCore* lc){
5050         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5051         for(;elem!=NULL;elem=elem->next){
5052                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5053                 if (linphone_proxy_config_register_enabled(cfg)) {
5054                         linphone_proxy_config_edit(cfg);
5055                         linphone_proxy_config_done(cfg);
5056                 }
5057         }
5058 }
5059
5060 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
5061         //first disable automatic mode
5062         if (lc->auto_net_state_mon) {
5063                 ms_message("Disabling automatic network state monitoring");
5064                 lc->auto_net_state_mon=FALSE;
5065         }
5066         set_network_reachable(lc,isReachable, ms_time(NULL));
5067 }
5068
5069 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
5070         return lc->network_reachable;
5071 }
5072 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
5073         return sal_get_socket(lc->sal);
5074 }
5075 /**
5076  * Destroys a LinphoneCore
5077  *
5078  * @ingroup initializing
5079 **/
5080 void linphone_core_destroy(LinphoneCore *lc){
5081         linphone_core_uninit(lc);
5082         ms_free(lc);
5083 }
5084 /**
5085  * Get the number of Call
5086  *
5087  * @ingroup call_control
5088 **/
5089 int linphone_core_get_calls_nb(const LinphoneCore *lc){
5090         return  ms_list_size(lc->calls);;
5091 }
5092
5093 /**
5094  * Check if we do not have exceed the number of simultaneous call
5095  *
5096  * @ingroup call_control
5097 **/
5098 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
5099 {
5100         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
5101                 return TRUE;
5102         ms_message("Maximum amount of simultaneous calls reached !");
5103         return FALSE;
5104 }
5105
5106
5107 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
5108 {
5109         if(linphone_core_can_we_add_call(lc))
5110         {
5111                 lc->calls = ms_list_append(lc->calls,call);
5112                 return 0;
5113         }
5114         return -1;
5115 }
5116
5117 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
5118 {
5119         MSList *it;
5120         MSList *the_calls = lc->calls;
5121
5122         it=ms_list_find(the_calls,call);
5123         if (it)
5124         {
5125                 the_calls = ms_list_remove_link(the_calls,it);
5126         }
5127         else
5128         {
5129                 ms_warning("could not find the call into the list\n");
5130                 return -1;
5131         }
5132         lc->calls = the_calls;
5133         return 0;
5134 }
5135
5136 /**
5137  * Specifiies a ring back tone to be played to far end during incoming calls.
5138 **/
5139 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
5140         if (lc->sound_conf.ringback_tone){
5141                 ms_free(lc->sound_conf.ringback_tone);
5142                 lc->sound_conf.ringback_tone=NULL;
5143         }
5144         if (file)
5145                 lc->sound_conf.ringback_tone=ms_strdup(file);
5146 }
5147
5148 /**
5149  * Returns the ring back tone played to far end during incoming calls.
5150 **/
5151 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
5152         return lc->sound_conf.ringback_tone;
5153 }
5154
5155 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
5156         const MSList *elem;
5157         for(elem=from;elem!=NULL;elem=elem->next){
5158                 PayloadType *pt=(PayloadType*)elem->data;
5159                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
5160                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
5161                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
5162                         return pt;
5163                 }
5164         }
5165         return NULL;
5166 }
5167
5168
5169 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
5170         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
5171         if (result)  {
5172                 return result;
5173         } else {
5174                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
5175                 if (result) {
5176                         return result;
5177                 }
5178         }
5179         /*not found*/
5180         return NULL;
5181 }
5182
5183 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
5184         switch(gs){
5185                 case LinphoneGlobalOff:
5186                         return "LinphoneGlobalOff";
5187                 break;
5188                 case LinphoneGlobalOn:
5189                         return "LinphoneGlobalOn";
5190                 break;
5191                 case LinphoneGlobalStartup:
5192                         return "LinphoneGlobalStartup";
5193                 break;
5194                 case LinphoneGlobalShutdown:
5195                         return "LinphoneGlobalShutdown";
5196                 break;
5197         }
5198         return NULL;
5199 }
5200
5201 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
5202         return lc->state;
5203 }
5204
5205 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
5206         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
5207         linphone_core_init_default_params(lc, p);
5208         return p;
5209 }
5210
5211 const char *linphone_reason_to_string(LinphoneReason err){
5212         switch(err){
5213                 case LinphoneReasonNone:
5214                         return "No error";
5215                 case LinphoneReasonNoResponse:
5216                         return "No response";
5217                 case LinphoneReasonBadCredentials:
5218                         return "Bad credentials";
5219                 case LinphoneReasonDeclined:
5220                         return "Call declined";
5221                 case LinphoneReasonNotFound:
5222                         return "User not found";
5223                 case LinphoneReasonNotAnswered:
5224                         return "Not answered";
5225                 case LinphoneReasonBusy:
5226                         return "Busy";
5227         }
5228         return "unknown error";
5229 }
5230
5231 const char *linphone_error_to_string(LinphoneReason err){
5232         return linphone_reason_to_string(err);
5233 }
5234 /**
5235  * Enables signaling keep alive
5236  */
5237 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
5238         if (enable > 0) {
5239                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
5240         } else {
5241                 sal_set_keepalive_period(lc->sal,0);
5242         }
5243 }
5244 /**
5245  * Is signaling keep alive enabled
5246  */
5247 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
5248         return sal_get_keepalive_period(lc->sal) > 0;
5249 }
5250
5251 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
5252         get_dtmf_gen(lc); /*make sure ring stream is started*/
5253         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
5254 }
5255
5256 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
5257         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
5258                 ring_stop(lc->ringstream);
5259                 lc->ringstream=NULL;
5260         }
5261 }
5262
5263 int linphone_core_get_max_calls(LinphoneCore *lc) {
5264         return lc->max_calls;
5265 }
5266 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
5267         lc->max_calls=max;
5268 }
5269
5270 typedef struct Hook{
5271         LinphoneCoreIterateHook fun;
5272         void *data;
5273 }Hook;
5274
5275 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
5276         Hook *h=ms_new(Hook,1);
5277         h->fun=hook;
5278         h->data=hook_data;
5279         return h;
5280 }
5281
5282 static void hook_invoke(Hook *h){
5283         h->fun(h->data);
5284 }
5285
5286 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5287         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
5288 }
5289
5290 static void linphone_core_run_hooks(LinphoneCore *lc){
5291         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
5292 }
5293
5294 static void linphone_core_free_hooks(LinphoneCore *lc){
5295         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
5296         ms_list_free(lc->hooks);
5297         lc->hooks=NULL;
5298 }
5299
5300 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5301         MSList *elem;
5302         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
5303                 Hook *h=(Hook*)elem->data;
5304                 if (h->fun==hook && h->data==hook_data){
5305                         ms_list_remove_link(lc->hooks,elem);
5306                         ms_free(h);
5307                         return;
5308                 }
5309         }
5310         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
5311 }
5312
5313 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
5314         if (lc->zrtp_secrets_cache != NULL) {
5315                 ms_free(lc->zrtp_secrets_cache);
5316         }
5317         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
5318 }
5319
5320 const char *linphone_core_get_zrtp_secrets_file(LinphoneCore *lc){
5321         return lc->zrtp_secrets_cache;
5322 }
5323
5324 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
5325         if (uri == NULL) return NULL;
5326         MSList *calls=lc->calls;
5327         while(calls) {
5328                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5329                 calls=calls->next;
5330                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5331                 char *current_uri=linphone_address_as_string_uri_only(address);
5332                 if (strcmp(uri,current_uri)==0) {
5333                         ms_free(current_uri);
5334                         return c;
5335                 } else {
5336                         ms_free(current_uri);
5337                 }
5338         }
5339         return NULL;
5340 }
5341
5342
5343 /**
5344  * Check if a call will need the sound resources.
5345  *
5346  * @ingroup call_control
5347  * @param lc The LinphoneCore
5348 **/
5349 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5350         MSList *calls=lc->calls;
5351         while(calls) {
5352                 LinphoneCall *c=(LinphoneCall*)calls->data;
5353                 calls=calls->next;
5354                 switch (c->state) {
5355                         case LinphoneCallOutgoingInit:
5356                         case LinphoneCallOutgoingProgress:
5357                         case LinphoneCallOutgoingRinging:
5358                         case LinphoneCallOutgoingEarlyMedia:
5359                         case LinphoneCallConnected:
5360                         case LinphoneCallRefered:
5361                         case LinphoneCallIncomingEarlyMedia:
5362                         case LinphoneCallUpdating:
5363                                 return TRUE;
5364                         default:
5365                                 break;
5366                 }
5367         }
5368         return FALSE;
5369 }
5370
5371 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5372         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5373 }
5374
5375 /**
5376  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5377 **/
5378 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5379         switch(menc){
5380                 case LinphoneMediaEncryptionSRTP:
5381                         return ortp_srtp_supported();
5382                 case LinphoneMediaEncryptionZRTP:
5383                         return ortp_zrtp_available();
5384                 case LinphoneMediaEncryptionNone:
5385                         return TRUE;
5386         }
5387         return FALSE;
5388 }
5389
5390 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5391         const char *type="none";
5392         int ret=0;
5393         if (menc == LinphoneMediaEncryptionSRTP){
5394                 if (!ortp_srtp_supported()){
5395                         ms_warning("SRTP not supported by library.");
5396                         type="none";
5397                         ret=-1;
5398                 }else type="srtp";
5399         }else if (menc == LinphoneMediaEncryptionZRTP){
5400                 if (!ortp_zrtp_available()){
5401                         ms_warning("ZRTP not supported by library.");
5402                         type="none";
5403                         ret=-1;
5404                 }else type="zrtp";
5405         }
5406         lp_config_set_string(lc->config,"sip","media_encryption",type);
5407         return ret;
5408 }
5409
5410 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5411         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5412
5413         if (menc == NULL)
5414                 return LinphoneMediaEncryptionNone;
5415         else if (strcmp(menc, "srtp")==0)
5416                 return LinphoneMediaEncryptionSRTP;
5417         else if (strcmp(menc, "zrtp")==0)
5418                 return LinphoneMediaEncryptionZRTP;
5419         else
5420                 return LinphoneMediaEncryptionNone;
5421 }
5422
5423 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5424         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5425 }
5426
5427 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5428         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5429 }
5430
5431 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5432         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5433         params->media_encryption=linphone_core_get_media_encryption(lc);
5434         params->in_conference=FALSE;
5435 }
5436
5437
5438
5439 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5440         if (lc->device_id) ms_free(lc->device_id);
5441         lc->device_id=ms_strdup(device_id);
5442 }
5443 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5444         return lc->device_id;
5445 }
5446
5447 /**
5448  * Set the DSCP field for SIP signaling channel.
5449  *
5450  * @ingroup network_parameters
5451  * * The DSCP defines the quality of service in IP packets.
5452  *
5453 **/
5454 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5455         sal_set_dscp(lc->sal,dscp);
5456         if (linphone_core_ready(lc)){
5457                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5458                 apply_transports(lc);
5459         }
5460 }
5461
5462 /**
5463  * Get the DSCP field for SIP signaling channel.
5464  *
5465  * @ingroup network_parameters
5466  * * The DSCP defines the quality of service in IP packets.
5467  *
5468 **/
5469 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5470         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5471 }
5472
5473 /**
5474  * Set the DSCP field for outgoing audio streams.
5475  *
5476  * @ingroup network_parameters
5477  * The DSCP defines the quality of service in IP packets.
5478  *
5479 **/
5480 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5481         if (linphone_core_ready(lc))
5482                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5483 }
5484
5485 /**
5486  * Get the DSCP field for outgoing audio streams.
5487  *
5488  * @ingroup network_parameters
5489  * The DSCP defines the quality of service in IP packets.
5490  *
5491 **/
5492 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5493         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5494 }
5495
5496 /**
5497  * Set the DSCP field for outgoing video streams.
5498  *
5499  * @ingroup network_parameters
5500  * The DSCP defines the quality of service in IP packets.
5501  *
5502 **/
5503 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5504         if (linphone_core_ready(lc))
5505                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5506
5507 }
5508
5509 /**
5510  * Get the DSCP field for outgoing video streams.
5511  *
5512  * @ingroup network_parameters
5513  * The DSCP defines the quality of service in IP packets.
5514  *
5515 **/
5516 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5517         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5518 }