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
  69 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
  70 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
  71
  72 /* relative path where is stored local ring*/
  73 #define LOCAL_RING "rings/oldphone.wav"
  74 /* same for remote ring (ringback)*/
  75 #define REMOTE_RING "ringback.wav"
  76 #define HOLD_MUSIC "rings/toy-mono.wav"
  77
  78
  79 extern SalCallbacks linphone_sal_callbacks;
  80
  81 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
  82 {
  83   obj->_func=func;
  84   obj->_user_data=ud;
  85 }
  86
  87 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
  88         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
  89         return 0;
  90 }
  91
  92
  93 /*prevent a gcc bug with %c*/
  94 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
  95         return strftime(s, max, fmt, tm);
  96 }
  97
  98 static void set_call_log_date(LinphoneCallLog *cl, time_t start_time){
  99         struct tm loctime;
 100 #ifdef WIN32
 101 #if !defined(_WIN32_WCE)
 102         loctime=*localtime(&start_time);
 103         /*FIXME*/
 104 #endif /*_WIN32_WCE*/
 105 #else
 106         localtime_r(&start_time,&loctime);
 107 #endif
 108         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",&loctime);
 109 }
 110
 111 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 112         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 113         cl->dir=call->dir;
 114         cl->start_date_time=call->start_time;
 115         set_call_log_date(cl,cl->start_date_time);
 116         cl->from=from;
 117         cl->to=to;
 118         cl->status=LinphoneCallAborted; /*default status*/
 119         return cl;
 120 }
 121
 122 void call_logs_write_to_config_file(LinphoneCore *lc){
 123         MSList *elem;
 124         char logsection[32];
 125         int i;
 126         char *tmp;
 127         LpConfig *cfg=lc->config;
 128
 129         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
 130
 131         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
 132                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
 133                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 134                 lp_config_clean_section(cfg,logsection);
 135                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
 136                 lp_config_set_int(cfg,logsection,"status",cl->status);
 137                 tmp=linphone_address_as_string(cl->from);
 138                 lp_config_set_string(cfg,logsection,"from",tmp);
 139                 ms_free(tmp);
 140                 tmp=linphone_address_as_string(cl->to);
 141                 lp_config_set_string(cfg,logsection,"to",tmp);
 142                 ms_free(tmp);
 143                 if (cl->start_date_time)
 144                         lp_config_set_int64(cfg,logsection,"start_date_time",(int64_t)cl->start_date_time);
 145                 else lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
 146                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
 147                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
 148                 lp_config_set_float(cfg,logsection,"quality",cl->quality);
 149                 lp_config_set_int(cfg,logsection,"video_enabled", cl->video_enabled);
 150                 lp_config_set_string(cfg,logsection,"call_id",cl->call_id);
 151         }
 152         for(;i<lc->max_call_logs;++i){
 153                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 154                 lp_config_clean_section(cfg,logsection);
 155         }
 156 }
 157
 158 static time_t string_to_time(const char *date){
 159 #ifndef WIN32
 160         struct tm tmtime={0};
 161         strptime(date,"%c",&tmtime);
 162         return mktime(&tmtime);
 163 #else
 164         return 0;
 165 #endif
 166 }
 167
 168 static void call_logs_read_from_config_file(LinphoneCore *lc){
 169         char logsection[32];
 170         int i;
 171         const char *tmp;
 172         uint64_t sec;
 173         LpConfig *cfg=lc->config;
 174         for(i=0;;++i){
 175                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 176                 if (lp_config_has_section(cfg,logsection)){
 177                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 178                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
 179                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
 180                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
 181                         if (tmp) cl->from=linphone_address_new(tmp);
 182                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
 183                         if (tmp) cl->to=linphone_address_new(tmp);
 184                         sec=lp_config_get_int64(cfg,logsection,"start_date_time",0);
 185                         if (sec) {
 186                                 /*new call log format with date expressed in seconds */
 187                                 cl->start_date_time=(time_t)sec;
 188                                 set_call_log_date(cl,cl->start_date_time);
 189                         }else{
 190                                 tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
 191                                 if (tmp) {
 192                                         strncpy(cl->start_date,tmp,sizeof(cl->start_date));
 193                                         cl->start_date_time=string_to_time(cl->start_date);
 194                                 }
 195                         }
 196                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
 197                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
 198                         if (tmp) cl->refkey=ms_strdup(tmp);
 199                         cl->quality=lp_config_get_float(cfg,logsection,"quality",-1);
 200                         cl->video_enabled=lp_config_get_int(cfg,logsection,"video_enabled",0);
 201                         tmp=lp_config_get_string(cfg,logsection,"call_id",NULL);
 202                         if (tmp) cl->call_id=ms_strdup(tmp);
 203                         lc->call_logs=ms_list_append(lc->call_logs,cl);
 204                 }else break;
 205         }
 206 }
 207
 208
 209
 210 /**
 211  * @addtogroup call_logs
 212  * @{
 213 **/
 214
 215 /**
 216  * Returns a human readable string describing the call.
 217  *
 218  * @note: the returned char* must be freed by the application (use ms_free()).
 219 **/
 220 char * linphone_call_log_to_str(LinphoneCallLog *cl){
 221         char *status;
 222         char *tmp;
 223         char *from=linphone_address_as_string (cl->from);
 224         char *to=linphone_address_as_string (cl->to);
 225         switch(cl->status){
 226                 case LinphoneCallAborted:
 227                         status=_("aborted");
 228                         break;
 229                 case LinphoneCallSuccess:
 230                         status=_("completed");
 231                         break;
 232                 case LinphoneCallMissed:
 233                         status=_("missed");
 234                         break;
 235                 default:
 236                         status="unknown";
 237         }
 238         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
 239                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
 240                         cl->start_date,
 241                         from,
 242                         to,
 243                         status,
 244                         cl->duration/60,
 245                         cl->duration%60);
 246         ms_free(from);
 247         ms_free(to);
 248         return tmp;
 249 }
 250
 251 /**
 252  * Returns RTP statistics computed locally regarding the call.
 253  *
 254 **/
 255 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
 256         return &cl->local_stats;
 257 }
 258
 259 /**
 260  * Returns RTP statistics computed by remote end and sent back via RTCP.
 261  *
 262  * @note Not implemented yet.
 263 **/
 264 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
 265         return &cl->remote_stats;
 266 }
 267
 268 const char *linphone_call_log_get_call_id(const LinphoneCallLog *cl){
 269         return cl->call_id;
 270 }
 271
 272 /**
 273  * Assign a user pointer to the call log.
 274 **/
 275 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
 276         cl->user_pointer=up;
 277 }
 278
 279 /**
 280  * Returns the user pointer associated with the call log.
 281 **/
 282 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
 283         return cl->user_pointer;
 284 }
 285
 286
 287
 288 /**
 289  * Associate a persistent reference key to the call log.
 290  *
 291  * The reference key can be for example an id to an external database.
 292  * It is stored in the config file, thus can survive to process exits/restarts.
 293  *
 294 **/
 295 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
 296         if (cl->refkey!=NULL){
 297                 ms_free(cl->refkey);
 298                 cl->refkey=NULL;
 299         }
 300         if (refkey) cl->refkey=ms_strdup(refkey);
 301 }
 302
 303 /**
 304  * Get the persistent reference key associated to the call log.
 305  *
 306  * The reference key can be for example an id to an external database.
 307  * It is stored in the config file, thus can survive to process exits/restarts.
 308  *
 309 **/
 310 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
 311         return cl->refkey;
 312 }
 313
 314 /**
 315  * Returns origin (ie from) address of the call.
 316 **/
 317 LinphoneAddress *linphone_call_log_get_from(LinphoneCallLog *cl){
 318         return cl->from;
 319 }
 320
 321 /**
 322  * Returns destination address (ie to) of the call.
 323 **/
 324 LinphoneAddress *linphone_call_log_get_to(LinphoneCallLog *cl){
 325         return cl->to;
 326 }
 327
 328 /**
 329  * Returns remote address (that is from or to depending on call direction).
 330 **/
 331 LinphoneAddress *linphone_call_log_get_remote_address(LinphoneCallLog *cl){
 332         return (cl->dir == LinphoneCallIncoming) ? cl->from : cl->to;
 333 }
 334
 335 /**
 336  * Returns the direction of the call.
 337 **/
 338 LinphoneCallDir linphone_call_log_get_dir(LinphoneCallLog *cl){
 339         return cl->dir;
 340 }
 341
 342 /**
 343  * Returns the status of the call.
 344 **/
 345 LinphoneCallStatus linphone_call_log_get_status(LinphoneCallLog *cl){
 346         return cl->status;
 347 }
 348
 349 /**
 350  * Returns the start date of the call, expressed as a POSIX time_t.
 351 **/
 352 time_t linphone_call_log_get_start_date(LinphoneCallLog *cl){
 353         return cl->start_date_time;
 354 }
 355
 356 /**
 357  * Returns duration of the call.
 358 **/
 359 int linphone_call_log_get_duration(LinphoneCallLog *cl){
 360         return cl->duration;
 361 }
 362
 363 /**
 364  * Returns overall quality indication of the call.
 365 **/
 366 float linphone_call_log_get_quality(LinphoneCallLog *cl){
 367         return cl->quality;
 368 }
 369 /**
 370  * return true if video was enabled at the end of the call
 371  */
 372 LinphoneCallStatus linphone_call_log_video_enabled(LinphoneCallLog *cl) {
 373         return cl->video_enabled;
 374 }
 375 /** @} */
 376
 377 void linphone_call_log_destroy(LinphoneCallLog *cl){
 378         if (cl->from!=NULL) linphone_address_destroy(cl->from);
 379         if (cl->to!=NULL) linphone_address_destroy(cl->to);
 380         if (cl->refkey!=NULL) ms_free(cl->refkey);
 381         if (cl->call_id) ms_free(cl->call_id);
 382         ms_free(cl);
 383 }
 384
 385 /**
 386  * Returns TRUE if the LinphoneCall asked to autoanswer
 387  *
 388 **/
 389 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
 390         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
 391         if(call)
 392                 return sal_call_autoanswer_asked(call->op);
 393         else
 394                 return FALSE;
 395 }
 396
 397 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
 398         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
 399         if (call)  return linphone_call_get_duration(call);
 400         return -1;
 401 }
 402
 403 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
 404         LinphoneCall *call=linphone_core_get_current_call(lc);
 405         if (call==NULL) return NULL;
 406         return linphone_call_get_remote_address(call);
 407 }
 408
 409 /**
 410  * Enable logs in supplied FILE*.
 411  *
 412  * @ingroup misc
 413  *
 414  * @param file a C FILE* where to fprintf logs. If null stdout is used.
 415  *
 416 **/
 417 void linphone_core_enable_logs(FILE *file){
 418         if (file==NULL) file=stdout;
 419         ortp_set_log_file(file);
 420         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 421 }
 422
 423 /**
 424  * Enable logs through the user's supplied log callback.
 425  *
 426  * @ingroup misc
 427  *
 428  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
 429  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
 430  *
 431 **/
 432 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
 433         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 434         ortp_set_log_handler(logfunc);
 435 }
 436
 437 /**
 438  * Entirely disable logging.
 439  *
 440  * @ingroup misc
 441 **/
 442 void linphone_core_disable_logs(){
 443         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
 444 }
 445
 446
 447 static void net_config_read (LinphoneCore *lc)
 448 {
 449         int tmp;
 450         const char *tmpstr;
 451         LpConfig *config=lc->config;
 452
 453         lc->net_conf.nat_address_ip = NULL;
 454         tmp=lp_config_get_int(config,"net","download_bw",0);
 455         linphone_core_set_download_bandwidth(lc,tmp);
 456         tmp=lp_config_get_int(config,"net","upload_bw",0);
 457         linphone_core_set_upload_bandwidth(lc,tmp);
 458         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
 459         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
 460         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
 461         linphone_core_set_nat_address(lc,tmpstr);
 462         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
 463         linphone_core_set_firewall_policy(lc,tmp);
 464         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
 465         lc->net_conf.nat_sdp_only=tmp;
 466         tmp=lp_config_get_int(lc->config,"net","mtu",0);
 467         linphone_core_set_mtu(lc,tmp);
 468         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 469         linphone_core_set_download_ptime(lc,tmp);
 470
 471 }
 472
 473 static void build_sound_devices_table(LinphoneCore *lc){
 474         const char **devices;
 475         const char **old;
 476         int ndev;
 477         int i;
 478         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
 479         ndev=ms_list_size(elem);
 480         devices=ms_malloc((ndev+1)*sizeof(const char *));
 481         for (i=0;elem!=NULL;elem=elem->next,i++){
 482                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
 483         }
 484         devices[ndev]=NULL;
 485         old=lc->sound_conf.cards;
 486         lc->sound_conf.cards=devices;
 487         if (old!=NULL) ms_free(old);
 488 }
 489
 490 static void sound_config_read(LinphoneCore *lc)
 491 {
 492         int tmp;
 493         const char *tmpbuf;
 494         const char *devid;
 495 #ifdef __linux
 496         /*alsadev let the user use custom alsa device within linphone*/
 497         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
 498         if (devid){
 499                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
 500                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
 501         }
 502         tmp=lp_config_get_int(lc->config,"sound","alsa_forced_rate",-1);
 503         if (tmp>0) ms_alsa_card_set_forced_sample_rate(tmp);
 504 #endif
 505         /* retrieve all sound devices */
 506         build_sound_devices_table(lc);
 507
 508         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
 509         linphone_core_set_playback_device(lc,devid);
 510
 511         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
 512         linphone_core_set_ringer_device(lc,devid);
 513
 514         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
 515         linphone_core_set_capture_device(lc,devid);
 516
 517 /*
 518         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
 519         linphone_core_set_play_level(lc,tmp);
 520         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
 521         linphone_core_set_ring_level(lc,tmp);
 522         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
 523         linphone_core_set_rec_level(lc,tmp);
 524         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
 525         linphone_core_set_sound_source(lc,tmpbuf[0]);
 526 */
 527
 528         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 529         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
 530         if (ortp_file_exist(tmpbuf)==-1) {
 531                 ms_warning("%s does not exist",tmpbuf);
 532                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 533         }
 534         if (strstr(tmpbuf,".wav")==NULL){
 535                 /* it currently uses old sound files, so replace them */
 536                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 537         }
 538         linphone_core_set_ring(lc,tmpbuf);
 539
 540         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 541         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
 542         if (ortp_file_exist(tmpbuf)==-1){
 543                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 544         }
 545         if (strstr(tmpbuf,".wav")==NULL){
 546                 /* it currently uses old sound files, so replace them */
 547                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 548         }
 549         linphone_core_set_ringback(lc,tmpbuf);
 550
 551         linphone_core_set_play_file(lc,lp_config_get_string(lc->config,"sound","hold_music",PACKAGE_SOUND_DIR "/" HOLD_MUSIC));
 552         check_sound_device(lc);
 553         lc->sound_conf.latency=0;
 554 #ifndef __ios
 555         tmp=TRUE;
 556 #else
 557         tmp=FALSE; /* on iOS we have builtin echo cancellation.*/
 558 #endif
 559         tmp=lp_config_get_int(lc->config,"sound","echocancellation",tmp);
 560         linphone_core_enable_echo_cancellation(lc,tmp);
 561         linphone_core_enable_echo_limiter(lc,
 562                 lp_config_get_int(lc->config,"sound","echolimiter",0));
 563         linphone_core_enable_agc(lc,
 564                 lp_config_get_int(lc->config,"sound","agc",0));
 565
 566         linphone_core_set_playback_gain_db (lc,lp_config_get_float(lc->config,"sound","playback_gain_db",0));
 567         linphone_core_set_mic_gain_db (lc,lp_config_get_float(lc->config,"sound","mic_gain_db",0));
 568
 569         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
 570
 571         /*just parse requested stream feature once at start to print out eventual errors*/
 572         linphone_core_get_audio_features(lc);
 573 }
 574
 575 static void sip_config_read(LinphoneCore *lc)
 576 {
 577         char *contact;
 578         const char *tmpstr;
 579         LCSipTransports tr;
 580         int i,tmp;
 581         int ipv6;
 582         int random_port;
 583
 584         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
 585         linphone_core_set_use_info_for_dtmf(lc,tmp);
 586
 587         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
 588                 sal_use_session_timers(lc->sal,200);
 589         }
 590
 591         sal_use_rport(lc->sal,lp_config_get_int(lc->config,"sip","use_rport",1));
 592         sal_use_101(lc->sal,lp_config_get_int(lc->config,"sip","use_101",1));
 593         sal_reuse_authorization(lc->sal, lp_config_get_int(lc->config,"sip","reuse_authorization",0));
 594         sal_expire_old_registration_contacts(lc->sal,lp_config_get_int(lc->config,"sip","expire_old_registration_contacts",0));
 595
 596         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",1);
 597         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
 598
 599         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
 600         if (ipv6==-1){
 601                 ipv6=0;
 602         }
 603         linphone_core_enable_ipv6(lc,ipv6);
 604         memset(&tr,0,sizeof(tr));
 605
 606         tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",0);
 607         tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
 608         tr.tls_port=lp_config_get_int(lc->config,"sip","sip_tls_port",0);
 609
 610         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)==1)
 611                 random_port=(0xDFFF&random())+1024;
 612         else random_port=0;
 613
 614         if (tr.udp_port==0 && tr.tcp_port==0 && tr.tls_port==0){
 615                 tr.udp_port=5060;
 616         }
 617
 618         if (tr.udp_port>0 && random_port){
 619                 tr.udp_port=random_port;
 620                 tr.tls_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 621         }else if (tr.tcp_port>0 && random_port){
 622                 tr.tcp_port=random_port;
 623                 tr.tls_port=tr.udp_port=0; /*make sure only one transport is active at a time*/
 624         }else if (tr.tls_port>0 && random_port){
 625                 tr.tls_port=random_port;
 626                 tr.udp_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 627         }
 628
 629 #ifdef __linux
 630         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", "/etc/ssl/certs"));
 631 #else
 632         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", ROOT_CA_FILE));
 633 #endif
 634         linphone_core_verify_server_certificates(lc,lp_config_get_int(lc->config,"sip","verify_server_certs",TRUE));
 635         linphone_core_verify_server_cn(lc,lp_config_get_int(lc->config,"sip","verify_server_cn",TRUE));
 636         /*setting the dscp must be done before starting the transports, otherwise it is not taken into effect*/
 637         sal_set_dscp(lc->sal,linphone_core_get_sip_dscp(lc));
 638         /*start listening on ports*/
 639         linphone_core_set_sip_transports(lc,&tr);
 640
 641         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
 642         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
 643                 const char *hostname=NULL;
 644                 const char *username=NULL;
 645 #ifdef HAVE_GETENV
 646                 hostname=getenv("HOST");
 647                 username=getenv("USER");
 648                 if (hostname==NULL) hostname=getenv("HOSTNAME");
 649 #endif /*HAVE_GETENV*/
 650                 if (hostname==NULL)
 651                         hostname="unknown-host";
 652                 if (username==NULL){
 653                         username="toto";
 654                 }
 655                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
 656                 linphone_core_set_primary_contact(lc,contact);
 657                 ms_free(contact);
 658         }
 659
 660         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
 661         linphone_core_set_guess_hostname(lc,tmp);
 662
 663
 664         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",30);
 665         linphone_core_set_inc_timeout(lc,tmp);
 666
 667         tmp=lp_config_get_int(lc->config,"sip","in_call_timeout",0);
 668         linphone_core_set_in_call_timeout(lc,tmp);
 669
 670         tmp=lp_config_get_int(lc->config,"sip","delayed_timeout",4);
 671         linphone_core_set_delayed_timeout(lc,tmp);
 672
 673         /* get proxies config */
 674         for(i=0;; i++){
 675                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 676                 if (cfg!=NULL){
 677                         linphone_core_add_proxy_config(lc,cfg);
 678                 }else{
 679                         break;
 680                 }
 681         }
 682         /* get the default proxy */
 683         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 684         linphone_core_set_default_proxy_index(lc,tmp);
 685
 686         /* read authentication information */
 687         for(i=0;; i++){
 688                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 689                 if (ai!=NULL){
 690                         linphone_core_add_auth_info(lc,ai);
 691                         linphone_auth_info_destroy(ai);
 692                 }else{
 693                         break;
 694                 }
 695         }
 696         /*this is to filter out unsupported encryption schemes*/
 697         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 698
 699         /*for tuning or test*/
 700         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 701         lc->sip_conf.register_only_when_network_is_up=
 702                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 703         lc->sip_conf.register_only_when_upnp_is_ok=
 704                 lp_config_get_int(lc->config,"sip","register_only_when_upnp_is_ok",1);
 705         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 706         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
 707         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
 708         lc->sip_conf.tcp_tls_keepalive=lp_config_get_int(lc->config,"sip","tcp_tls_keepalive",0);
 709         linphone_core_enable_keep_alive(lc, (lc->sip_conf.keepalive_period > 0));
 710         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
 711         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
 712         sal_use_dates(lc->sal,lp_config_get_int(lc->config,"sip","put_date",0));
 713 }
 714
 715 static void rtp_config_read(LinphoneCore *lc)
 716 {
 717         int min_port, max_port;
 718         int jitt_comp;
 719         int nortp_timeout;
 720         bool_t rtp_no_xmit_on_audio_mute;
 721         bool_t adaptive_jitt_comp_enabled;
 722
 723         if (lp_config_get_range(lc->config, "rtp", "audio_rtp_port", &min_port, &max_port, 7078, 7078) == TRUE) {
 724                 if (min_port <= 0) min_port = 1;
 725                 if (max_port > 65535) max_port = 65535;
 726                 linphone_core_set_audio_port_range(lc, min_port, max_port);
 727         } else {
 728                 min_port = lp_config_get_int(lc->config, "rtp", "audio_rtp_port", 7078);
 729                 linphone_core_set_audio_port(lc, min_port);
 730         }
 731
 732         if (lp_config_get_range(lc->config, "rtp", "video_rtp_port", &min_port, &max_port, 9078, 9078) == TRUE) {
 733                 if (min_port <= 0) min_port = 1;
 734                 if (max_port > 65535) max_port = 65535;
 735                 linphone_core_set_video_port_range(lc, min_port, max_port);
 736         } else {
 737                 min_port = lp_config_get_int(lc->config, "rtp", "video_rtp_port", 9078);
 738                 linphone_core_set_video_port(lc, min_port);
 739         }
 740
 741         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 742         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 743         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 744         if (jitt_comp==0) jitt_comp=60;
 745         linphone_core_set_video_jittcomp(lc,jitt_comp);
 746         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 747         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 748         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
 749         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
 750         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
 751         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 752         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
 753         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 754 }
 755
 756 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 757         PayloadType *candidate=NULL;
 758         int i;
 759         PayloadType *it;
 760         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 761                 it=rtp_profile_get_payload(prof,i);
 762                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 763                         && (clock_rate==it->clock_rate || clock_rate<=0)
 764                         && (channels==it->channels || channels<=0) ){
 765                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 766                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 767                                 /*exact match*/
 768                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 769                                 return it;
 770                         }else {
 771                                 if (candidate){
 772                                         if (it->recv_fmtp==NULL) candidate=it;
 773                                 }else candidate=it;
 774                         }
 775                 }
 776         }
 777         if (candidate && recv_fmtp){
 778                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 779         }
 780         return candidate;
 781 }
 782
 783 static bool_t get_codec(LinphoneCore *lc, const char* type, int index, PayloadType **ret){
 784         char codeckey[50];
 785         const char *mime,*fmtp;
 786         int rate,channels,enabled;
 787         PayloadType *pt;
 788         LpConfig *config=lc->config;
 789
 790         *ret=NULL;
 791         snprintf(codeckey,50,"%s_%i",type,index);
 792         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 793         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 794
 795         rate=lp_config_get_int(config,codeckey,"rate",8000);
 796         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 797         channels=lp_config_get_int(config,codeckey,"channels",0);
 798         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 799         pt=find_payload(lc->default_profile,mime,rate,channels,fmtp);
 800         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 801         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 802         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 803                         mime,rate,fmtp ? fmtp : "");
 804         *ret=pt;
 805         return TRUE;
 806 }
 807
 808 #define RANK_END 10000
 809
 810 typedef struct codec_desc{
 811         const char *name;
 812         int rate;
 813 }codec_desc_t;
 814
 815 static codec_desc_t codec_pref_order[]={
 816         {"SILK", 16000},
 817         {"speex", 16000},
 818         {"speex", 8000},
 819         {"pcmu",8000},
 820         {"pcma",8000},
 821         {"VP8",90000},
 822         {"H264",90000},
 823         {"MP4V-ES",90000},
 824         {NULL,0}
 825 };
 826
 827 static int find_codec_rank(const char *mime, int clock_rate){
 828         int i;
 829         for(i=0;codec_pref_order[i].name!=NULL;++i){
 830                 if (strcasecmp(codec_pref_order[i].name,mime)==0 && clock_rate==codec_pref_order[i].rate)
 831                         return i;
 832         }
 833         return RANK_END;
 834 }
 835
 836 static int codec_compare(const PayloadType *a, const PayloadType *b){
 837         int ra,rb;
 838         ra=find_codec_rank(a->mime_type,a->clock_rate);
 839         rb=find_codec_rank(b->mime_type,b->clock_rate);
 840         if (ra>rb) return 1;
 841         if (ra<rb) return -1;
 842         return 0;
 843 }
 844
 845 static MSList *add_missing_codecs(LinphoneCore *lc, SalStreamType mtype, MSList *l){
 846         int i;
 847         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 848                 PayloadType *pt=rtp_profile_get_payload(lc->default_profile,i);
 849                 if (pt){
 850                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 851                                 pt=NULL;
 852                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 853                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 854                                 pt=NULL;
 855                         }
 856                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 857                                 if (ms_list_find(l,pt)==NULL){
 858                                         /*unranked codecs are disabled by default*/
 859                                         if (find_codec_rank(pt->mime_type, pt->clock_rate)!=RANK_END){
 860                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 861                                         }
 862                                         ms_message("Adding new codec %s/%i with fmtp %s",
 863                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 864                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 865                                 }
 866                         }
 867                 }
 868         }
 869         return l;
 870 }
 871
 872 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 873         MSList *elem;
 874         for (elem=l;elem!=NULL;elem=elem->next){
 875                 PayloadType *ept=(PayloadType*)elem->data;
 876                 if (pt==ept)
 877                         return l;
 878         }
 879         l=ms_list_append(l,pt);
 880         return l;
 881 }
 882
 883 static void codecs_config_read(LinphoneCore *lc)
 884 {
 885         int i;
 886         PayloadType *pt;
 887         MSList *audio_codecs=NULL;
 888         MSList *video_codecs=NULL;
 889         for (i=0;get_codec(lc,"audio_codec",i,&pt);i++){
 890                 if (pt){
 891                         if (!ms_filter_codec_supported(pt->mime_type)){
 892                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 893                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 894                 }
 895         }
 896         audio_codecs=add_missing_codecs(lc,SalAudio,audio_codecs);
 897         for (i=0;get_codec(lc,"video_codec",i,&pt);i++){
 898                 if (pt){
 899                         if (!ms_filter_codec_supported(pt->mime_type)){
 900                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 901                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 902                 }
 903         }
 904         video_codecs=add_missing_codecs(lc,SalVideo,video_codecs);
 905         linphone_core_set_audio_codecs(lc,audio_codecs);
 906         linphone_core_set_video_codecs(lc,video_codecs);
 907         linphone_core_update_allocated_audio_bandwidth(lc);
 908 }
 909
 910 static void build_video_devices_table(LinphoneCore *lc){
 911         const MSList *elem;
 912         int i;
 913         int ndev;
 914         const char **devices;
 915         if (lc->video_conf.cams)
 916                 ms_free(lc->video_conf.cams);
 917         /* retrieve all video devices */
 918         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 919         ndev=ms_list_size(elem);
 920         devices=ms_malloc((ndev+1)*sizeof(const char *));
 921         for (i=0;elem!=NULL;elem=elem->next,i++){
 922                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 923         }
 924         devices[ndev]=NULL;
 925         lc->video_conf.cams=devices;
 926 }
 927
 928 static void video_config_read(LinphoneCore *lc){
 929 #ifdef VIDEO_ENABLED
 930         int capture, display, self_view;
 931 #endif
 932         const char *str;
 933 #ifdef VIDEO_ENABLED
 934         LinphoneVideoPolicy vpol;
 935         memset(&vpol, 0, sizeof(LinphoneVideoPolicy));
 936 #endif
 937         build_video_devices_table(lc);
 938
 939         str=lp_config_get_string(lc->config,"video","device",NULL);
 940         if (str && str[0]==0) str=NULL;
 941         linphone_core_set_video_device(lc,str);
 942
 943         linphone_core_set_preferred_video_size_by_name(lc,
 944                 lp_config_get_string(lc->config,"video","size","cif"));
 945
 946 #ifdef VIDEO_ENABLED
 947         capture=lp_config_get_int(lc->config,"video","capture",1);
 948         display=lp_config_get_int(lc->config,"video","display",1);
 949         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 950         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 951         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 952         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 953         if(lc->video_conf.displaytype)
 954                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 955
 956         linphone_core_enable_video(lc,capture,display);
 957         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 958         linphone_core_enable_self_view(lc,self_view);
 959         linphone_core_set_video_policy(lc,&vpol);
 960 #endif
 961 }
 962
 963 static void ui_config_read(LinphoneCore *lc)
 964 {
 965         LinphoneFriend *lf;
 966         int i;
 967         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 968                 linphone_core_add_friend(lc,lf);
 969         }
 970         call_logs_read_from_config_file(lc);
 971 }
 972
 973 /*
 974 static void autoreplier_config_init(LinphoneCore *lc)
 975 {
 976         autoreplier_config_t *config=&lc->autoreplier_conf;
 977         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 978         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 979         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 980         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 981         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 982         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 983 }
 984 */
 985
 986 bool_t linphone_core_tunnel_available(void){
 987 #ifdef TUNNEL_ENABLED
 988         return TRUE;
 989 #else
 990         return FALSE;
 991 #endif
 992 }
 993
 994 /**
 995  * Enable adaptive rate control.
 996  *
 997  * @ingroup media_parameters
 998  *
 999  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
1000  * control the output bitrate of the audio and video encoders, so that we can adapt to the network conditions and
1001  * available bandwidth. Control of the audio encoder is done in case of audio-only call, and control of the video encoder is done for audio & video calls.
1002  * Adaptive rate control feature is enabled by default.
1003 **/
1004 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
1005         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
1006 }
1007
1008 /**
1009  * Returns whether adaptive rate control is enabled.
1010  *
1011  * @ingroup media_parameters
1012  *
1013  * See linphone_core_enable_adaptive_rate_control().
1014 **/
1015 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
1016         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
1017 }
1018
1019 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
1020         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
1021 }
1022
1023 /**
1024  * Sets maximum available download bandwidth
1025  *
1026  * @ingroup media_parameters
1027  *
1028  * This is IP bandwidth, in kbit/s.
1029  * This information is used signaled to other parties during
1030  * calls (within SDP messages) so that the remote end can have
1031  * sufficient knowledge to properly configure its audio & video
1032  * codec output bitrate to not overflow available bandwidth.
1033  *
1034  * @param lc the LinphoneCore object
1035  * @param bw the bandwidth in kbits/s, 0 for infinite
1036  */
1037 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
1038         lc->net_conf.download_bw=bw;
1039         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
1040 }
1041
1042 /**
1043  * Sets maximum available upload bandwidth
1044  *
1045  * @ingroup media_parameters
1046  *
1047  * This is IP bandwidth, in kbit/s.
1048  * This information is used by liblinphone together with remote
1049  * side available bandwidth signaled in SDP messages to properly
1050  * configure audio & video codec's output bitrate.
1051  *
1052  * @param lc the LinphoneCore object
1053  * @param bw the bandwidth in kbits/s, 0 for infinite
1054  */
1055 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
1056         lc->net_conf.upload_bw=bw;
1057         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
1058 }
1059
1060 /**
1061  * Retrieve the maximum available download bandwidth.
1062  *
1063  * @ingroup media_parameters
1064  *
1065  * This value was set by linphone_core_set_download_bandwidth().
1066  *
1067 **/
1068 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
1069         return lc->net_conf.download_bw;
1070 }
1071
1072 /**
1073  * Retrieve the maximum available upload bandwidth.
1074  *
1075  * @ingroup media_parameters
1076  *
1077  * This value was set by linphone_core_set_upload_bandwidth().
1078  *
1079 **/
1080 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
1081         return lc->net_conf.upload_bw;
1082 }
1083 /**
1084  * Set audio packetization time linphone expects to receive from peer.
1085  * A value of zero means that ptime is not specified.
1086  * @ingroup media_parameters
1087  */
1088 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
1089         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
1090 }
1091
1092 /**
1093  * Get audio packetization time linphone expects to receive from peer.
1094  * A value of zero means that ptime is not specified.
1095  * @ingroup media_parameters
1096  */
1097 int linphone_core_get_download_ptime(LinphoneCore *lc) {
1098         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
1099 }
1100
1101 /**
1102  * Set audio packetization time linphone will send (in absence of requirement from peer)
1103  * A value of 0 stands for the current codec default packetization time.
1104  *
1105  * @ingroup media_parameters
1106 **/
1107 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
1108         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
1109 }
1110
1111 /**
1112  * Set audio packetization time linphone will send (in absence of requirement from peer)
1113  * A value of 0 stands for the current codec default packetization time.
1114  *
1115  *
1116  * @ingroup media_parameters
1117 **/
1118 int linphone_core_get_upload_ptime(LinphoneCore *lc){
1119         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
1120 }
1121
1122
1123
1124 /**
1125  * Returns liblinphone's version as a string.
1126  *
1127  * @ingroup misc
1128  *
1129 **/
1130 const char * linphone_core_get_version(void){
1131         return liblinphone_version;
1132 }
1133
1134 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1135         PayloadType *pt;
1136         pt=payload_type_clone(const_pt);
1137         if (number==-1){
1138                 /*look for a free number */
1139                 MSList *elem;
1140                 int i;
1141                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1142                         bool_t already_assigned=FALSE;
1143                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1144                                 PayloadType *it=(PayloadType*)elem->data;
1145                                 if (payload_type_get_number(it)==i){
1146                                         already_assigned=TRUE;
1147                                         break;
1148                                 }
1149                         }
1150                         if (!already_assigned){
1151                                 number=i;
1152                                 lc->dyn_pt=i+1;
1153                                 break;
1154                         }
1155                 }
1156                 if (number==-1){
1157                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1158                 }
1159         }
1160         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1161         payload_type_set_number(pt,number);
1162         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1163         rtp_profile_set_payload(lc->default_profile,number,pt);
1164         lc->payload_types=ms_list_append(lc->payload_types,pt);
1165 }
1166
1167 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1168         RtpProfile *prof=&av_profile;
1169         int i;
1170         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1171                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1172                 if (pt){
1173                         if (payload_type_get_number(pt)!=i){
1174                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1175                         }
1176                 }
1177         }
1178 }
1179
1180 static void linphone_core_free_payload_types(LinphoneCore *lc){
1181         rtp_profile_clear_all(lc->default_profile);
1182         rtp_profile_destroy(lc->default_profile);
1183         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1184         ms_list_free(lc->payload_types);
1185         lc->payload_types=NULL;
1186 }
1187
1188 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1189         lc->state=gstate;
1190         if (lc->vtable.global_state_changed){
1191                 lc->vtable.global_state_changed(lc,gstate,message);
1192         }
1193 }
1194 static void misc_config_read (LinphoneCore *lc) {
1195         LpConfig *config=lc->config;
1196     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1197     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1198 }
1199
1200
1201
1202
1203 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1204     const char *factory_config_path, void * userdata)
1205 {
1206         ms_message("Initializing LinphoneCore %s", linphone_core_get_version());
1207         memset (lc, 0, sizeof (LinphoneCore));
1208         lc->data=userdata;
1209         lc->ringstream_autorelease=TRUE;
1210
1211         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1212
1213         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1214         ortp_init();
1215         lc->dyn_pt=96;
1216         lc->default_profile=rtp_profile_new("default profile");
1217         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1218         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1219         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1220         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1221         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1222         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1223         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1224         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1225
1226 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1227         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1228          - to workaround potential packet losses
1229          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1230          */
1231         _linphone_core_configure_resolver();
1232 #endif
1233
1234 #ifdef ENABLE_NONSTANDARD_GSM
1235         {
1236                 PayloadType *pt;
1237                 pt=payload_type_clone(&payload_type_gsm);
1238                 pt->clock_rate=11025;
1239                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1240                 pt->clock_rate=22050;
1241                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1242                 payload_type_destroy(pt);
1243         }
1244 #endif
1245
1246 #ifdef VIDEO_ENABLED
1247         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1248         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1249         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1250         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1251         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1252         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1253         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1254         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1255         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1256 #endif
1257
1258         /*add all payload type for which we don't care about the number */
1259         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1260         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1261         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1262         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1263         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1264         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1265         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1266         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1267         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1268         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1269         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1270         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1271         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1272         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1273         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1274         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1275         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1276         linphone_core_handle_static_payloads(lc);
1277
1278         ms_init();
1279         /* create a mediastreamer2 event queue and set it as global */
1280         /* This allows to run event's callback in linphone_core_iterate() */
1281         lc->msevq=ms_event_queue_new();
1282         ms_set_global_event_queue(lc->msevq);
1283
1284         lc->config=lp_config_new(config_path);
1285         if (factory_config_path)
1286                 lp_config_read_file(lc->config,factory_config_path);
1287
1288         lc->sal=sal_init();
1289         sal_set_user_pointer(lc->sal,lc);
1290         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1291
1292         lc->network_last_check = 0;
1293         lc->network_last_status = FALSE;
1294
1295         sip_setup_register_all();
1296         sound_config_read(lc);
1297         net_config_read(lc);
1298         rtp_config_read(lc);
1299         codecs_config_read(lc);
1300         sip_config_read(lc); /* this will start eXosip*/
1301         video_config_read(lc);
1302         //autoreplier_config_init(&lc->autoreplier_conf);
1303         lc->presence_mode=LinphoneStatusOnline;
1304         misc_config_read(lc);
1305         ui_config_read(lc);
1306 #ifdef TUNNEL_ENABLED
1307         lc->tunnel=linphone_core_tunnel_new(lc);
1308         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1309 #endif
1310 #ifdef MSG_STORAGE_ENABLED
1311         lc->db=linphone_message_storage_init();
1312 #endif
1313         if (lc->vtable.display_status)
1314                 lc->vtable.display_status(lc,_("Ready"));
1315         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1316         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1317 }
1318
1319 /**
1320  * Instanciates a LinphoneCore object.
1321  * @ingroup initializing
1322  *
1323  * The LinphoneCore object is the primary handle for doing all phone actions.
1324  * It should be unique within your application.
1325  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1326  * @param config_path a path to a config file. If it does not exists it will be created.
1327  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1328  *             become persistent over the life of the LinphoneCore object.
1329  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1330  * @param factory_config_path a path to a read-only config file that can be used to
1331  *        to store hard-coded preference such as proxy settings or internal preferences.
1332  *        The settings in this factory file always override the one in the normal config file.
1333  *        It is OPTIONAL, use NULL if unneeded.
1334  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1335  *        callbacks) using linphone_core_get_user_data().
1336  *
1337 **/
1338 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1339                                                 const char *config_path, const char *factory_config_path, void * userdata)
1340 {
1341         LinphoneCore *core=ms_new(LinphoneCore,1);
1342         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1343         return core;
1344 }
1345
1346 /**
1347  * Returns the list of available audio codecs.
1348  *
1349  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1350  * structure holding the codec information.
1351  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1352  * (such as the order of codecs).
1353  * @ingroup media_parameters
1354 **/
1355 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1356 {
1357         return lc->codecs_conf.audio_codecs;
1358 }
1359
1360 /**
1361  * Returns the list of available video codecs.
1362  *
1363  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1364  * structure holding the codec information.
1365  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1366  * (such as the order of codecs).
1367  * @ingroup media_parameters
1368 **/
1369 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1370 {
1371         return lc->codecs_conf.video_codecs;
1372 }
1373
1374 /**
1375  * Sets the local "from" identity.
1376  *
1377  * @ingroup proxies
1378  * This data is used in absence of any proxy configuration or when no
1379  * default proxy configuration is set. See LinphoneProxyConfig
1380 **/
1381 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1382 {
1383         LinphoneAddress *ctt;
1384
1385         if ((ctt=linphone_address_new(contact))==0) {
1386                 ms_error("Bad contact url: %s",contact);
1387                 return -1;
1388         }
1389         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1390         lc->sip_conf.contact=ms_strdup(contact);
1391         if (lc->sip_conf.guessed_contact!=NULL){
1392                 ms_free(lc->sip_conf.guessed_contact);
1393                 lc->sip_conf.guessed_contact=NULL;
1394         }
1395         linphone_address_destroy(ctt);
1396         return 0;
1397 }
1398
1399
1400 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1401 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1402         const char *ip;
1403         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1404             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1405                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1406                 return;
1407         }
1408 #ifdef BUILD_UPNP
1409         else if (lc->upnp != NULL && linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp &&
1410                         linphone_upnp_context_get_state(lc->upnp) == LinphoneUpnpStateOk) {
1411                 ip = linphone_upnp_context_get_external_ipaddress(lc->upnp);
1412                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1413                 return;
1414         }
1415 #endif //BUILD_UPNP
1416         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1417                 return;
1418         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1419         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1420 }
1421
1422 static void update_primary_contact(LinphoneCore *lc){
1423         char *guessed=NULL;
1424         char tmp[LINPHONE_IPADDR_SIZE];
1425
1426         LinphoneAddress *url;
1427         if (lc->sip_conf.guessed_contact!=NULL){
1428                 ms_free(lc->sip_conf.guessed_contact);
1429                 lc->sip_conf.guessed_contact=NULL;
1430         }
1431         url=linphone_address_new(lc->sip_conf.contact);
1432         if (!url){
1433                 ms_error("Could not parse identity contact !");
1434                 url=linphone_address_new("sip:unknown@unkwownhost");
1435         }
1436         linphone_core_get_local_ip(lc, NULL, tmp);
1437         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1438                 ms_warning("Local loopback network only !");
1439                 lc->sip_conf.loopback_only=TRUE;
1440         }else lc->sip_conf.loopback_only=FALSE;
1441         linphone_address_set_domain(url,tmp);
1442         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1443         guessed=linphone_address_as_string(url);
1444         lc->sip_conf.guessed_contact=guessed;
1445         linphone_address_destroy(url);
1446 }
1447
1448 /**
1449  * Returns the default identity when no proxy configuration is used.
1450  *
1451  * @ingroup proxies
1452 **/
1453 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1454         char *identity;
1455
1456         if (lc->sip_conf.guess_hostname){
1457                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1458                         update_primary_contact(lc);
1459                 }
1460                 identity=lc->sip_conf.guessed_contact;
1461         }else{
1462                 identity=lc->sip_conf.contact;
1463         }
1464         return identity;
1465 }
1466
1467 /**
1468  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1469  *
1470  * @ingroup proxies
1471 **/
1472 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1473         lc->sip_conf.guess_hostname=val;
1474 }
1475
1476 /**
1477  * Returns TRUE if hostname part of primary contact is guessed automatically.
1478  *
1479  * @ingroup proxies
1480 **/
1481 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1482         return lc->sip_conf.guess_hostname;
1483 }
1484
1485 /**
1486  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1487  * instead of const char*
1488  *
1489  * @ingroup proxies
1490 **/
1491 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1492         return linphone_address_new(linphone_core_get_primary_contact(lc));
1493 }
1494
1495 /**
1496  * Sets the list of audio codecs.
1497  *
1498  * @ingroup media_parameters
1499  * The list is taken by the LinphoneCore thus the application should not free it.
1500  * This list is made of struct PayloadType describing the codec parameters.
1501 **/
1502 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1503 {
1504         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1505         lc->codecs_conf.audio_codecs=codecs;
1506         _linphone_core_codec_config_write(lc);
1507         return 0;
1508 }
1509
1510 /**
1511  * Sets the list of video codecs.
1512  *
1513  * @ingroup media_parameters
1514  * The list is taken by the LinphoneCore thus the application should not free it.
1515  * This list is made of struct PayloadType describing the codec parameters.
1516 **/
1517 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1518 {
1519         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1520         lc->codecs_conf.video_codecs=codecs;
1521         _linphone_core_codec_config_write(lc);
1522         return 0;
1523 }
1524
1525 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1526 {
1527         return lc->friends;
1528 }
1529
1530 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1531 {
1532         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1533 }
1534
1535 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1536 {
1537         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1538 }
1539
1540 /**
1541  * Returns the nominal audio jitter buffer size in milliseconds.
1542  *
1543  * @ingroup media_parameters
1544 **/
1545 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1546 {
1547         return lc->rtp_conf.audio_jitt_comp;
1548 }
1549
1550 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1551 {
1552         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1553 }
1554
1555 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1556 {
1557         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1558 }
1559
1560 /**
1561  * Returns the nominal video jitter buffer size in milliseconds.
1562  *
1563  * @ingroup media_parameters
1564 **/
1565 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1566 {
1567         return lc->rtp_conf.video_jitt_comp;
1568 }
1569
1570 /**
1571  * Returns the UDP port used for audio streaming.
1572  *
1573  * @ingroup network_parameters
1574 **/
1575 int linphone_core_get_audio_port(const LinphoneCore *lc)
1576 {
1577         return lc->rtp_conf.audio_rtp_min_port;
1578 }
1579
1580 /**
1581  * Get the audio port range from which is randomly chosen the UDP port used for audio streaming.
1582  *
1583  * @ingroup network_parameters
1584  */
1585 void linphone_core_get_audio_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1586 {
1587         *min_port = lc->rtp_conf.audio_rtp_min_port;
1588         *max_port = lc->rtp_conf.audio_rtp_max_port;
1589 }
1590
1591 /**
1592  * Returns the UDP port used for video streaming.
1593  *
1594  * @ingroup network_parameters
1595 **/
1596 int linphone_core_get_video_port(const LinphoneCore *lc){
1597         return lc->rtp_conf.video_rtp_min_port;
1598 }
1599
1600 /**
1601  * Get the video port range from which is randomly chosen the UDP port used for video streaming.
1602  *
1603  * @ingroup network_parameters
1604  */
1605 void linphone_core_get_video_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1606 {
1607         *min_port = lc->rtp_conf.video_rtp_min_port;
1608         *max_port = lc->rtp_conf.video_rtp_max_port;
1609 }
1610
1611
1612 /**
1613  * Returns the value in seconds of the no-rtp timeout.
1614  *
1615  * @ingroup media_parameters
1616  * When no RTP or RTCP packets have been received for a while
1617  * LinphoneCore will consider the call is broken (remote end crashed or
1618  * disconnected from the network), and thus will terminate the call.
1619  * The no-rtp timeout is the duration above which the call is considered broken.
1620 **/
1621 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1622         return lc->rtp_conf.nortp_timeout;
1623 }
1624
1625 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1626         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1627 }
1628
1629 /**
1630  * Sets the nominal audio jitter buffer size in milliseconds.
1631  *
1632  * @ingroup media_parameters
1633 **/
1634 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1635 {
1636         lc->rtp_conf.audio_jitt_comp=value;
1637 }
1638
1639 /**
1640  * Sets the nominal video jitter buffer size in milliseconds.
1641  *
1642  * @ingroup media_parameters
1643 **/
1644 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1645 {
1646         lc->rtp_conf.video_jitt_comp=value;
1647 }
1648
1649 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1650         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1651 }
1652
1653 /**
1654  * Sets the UDP port used for audio streaming.
1655  *
1656  * @ingroup network_parameters
1657 **/
1658 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1659 {
1660         lc->rtp_conf.audio_rtp_min_port=lc->rtp_conf.audio_rtp_max_port=port;
1661 }
1662
1663 /**
1664  * Sets the UDP port range from which to randomly select the port used for audio streaming.
1665  * @ingroup media_parameters
1666  */
1667 void linphone_core_set_audio_port_range(LinphoneCore *lc, int min_port, int max_port)
1668 {
1669         lc->rtp_conf.audio_rtp_min_port=min_port;
1670         lc->rtp_conf.audio_rtp_max_port=max_port;
1671 }
1672
1673 /**
1674  * Sets the UDP port used for video streaming.
1675  *
1676  * @ingroup network_parameters
1677 **/
1678 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1679         lc->rtp_conf.video_rtp_min_port=lc->rtp_conf.video_rtp_max_port=port;
1680 }
1681
1682 /**
1683  * Sets the UDP port range from which to randomly select the port used for video streaming.
1684  * @ingroup media_parameters
1685  */
1686 void linphone_core_set_video_port_range(LinphoneCore *lc, int min_port, int max_port)
1687 {
1688         lc->rtp_conf.video_rtp_min_port=min_port;
1689         lc->rtp_conf.video_rtp_max_port=max_port;
1690 }
1691
1692 /**
1693  * Sets the no-rtp timeout value in seconds.
1694  *
1695  * @ingroup media_parameters
1696  * See linphone_core_get_nortp_timeout() for details.
1697 **/
1698 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1699         lc->rtp_conf.nortp_timeout=nortp_timeout;
1700 }
1701
1702 /**
1703  * Indicates whether SIP INFO is used for sending digits.
1704  *
1705  * @ingroup media_parameters
1706 **/
1707 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1708 {
1709         return lc->sip_conf.use_info;
1710 }
1711
1712 /**
1713  * Sets whether SIP INFO is to be used for sending digits.
1714  *
1715  * @ingroup media_parameters
1716 **/
1717 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1718 {
1719         lc->sip_conf.use_info=use_info;
1720 }
1721
1722 /**
1723  * Indicates whether RFC2833 is used for sending digits.
1724  *
1725  * @ingroup media_parameters
1726 **/
1727 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1728 {
1729         return lc->sip_conf.use_rfc2833;
1730 }
1731
1732 /**
1733  * Sets whether RFC2833 is to be used for sending digits.
1734  *
1735  * @ingroup media_parameters
1736 **/
1737 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1738 {
1739         lc->sip_conf.use_rfc2833=use_rfc2833;
1740 }
1741
1742 /**
1743  * Returns the UDP port used by SIP.
1744  *
1745  * Deprecated: use linphone_core_get_sip_transports() instead.
1746  * @ingroup network_parameters
1747 **/
1748 int linphone_core_get_sip_port(LinphoneCore *lc)
1749 {
1750         LCSipTransports *tr=&lc->sip_conf.transports;
1751         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1752 }
1753
1754 static char _ua_name[64]="Linphone";
1755 static char _ua_version[64]=LINPHONE_VERSION;
1756
1757 #ifdef HAVE_EXOSIP_GET_VERSION
1758 extern const char *eXosip_get_version();
1759 #endif
1760
1761 static void apply_user_agent(LinphoneCore *lc){
1762         char ua_string[256];
1763         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1764 #ifdef HAVE_EXOSIP_GET_VERSION
1765                  eXosip_get_version()
1766 #else
1767                  "unknown"
1768 #endif
1769         );
1770         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1771 }
1772
1773 /**
1774  * Sets the user agent string used in SIP messages.
1775  *
1776  * @ingroup misc
1777 **/
1778 void linphone_core_set_user_agent(LinphoneCore *lc, const char *name, const char *ver){
1779         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1780         strncpy(_ua_version,ver,sizeof(_ua_version));
1781         apply_user_agent(lc);
1782 }
1783
1784 const char *linphone_core_get_user_agent_name(void){
1785         return _ua_name;
1786 }
1787
1788 const char *linphone_core_get_user_agent_version(void){
1789         return _ua_version;
1790 }
1791
1792 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1793         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1794         ms_warning("%s",msg);
1795         if (lc->vtable.display_warning)
1796                 lc->vtable.display_warning(lc,msg);
1797         ms_free(msg);
1798 }
1799
1800 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1801         return
1802                 tr2->udp_port==tr1->udp_port &&
1803                 tr2->tcp_port==tr1->tcp_port &&
1804                 tr2->dtls_port==tr1->dtls_port &&
1805                 tr2->tls_port==tr1->tls_port;
1806 }
1807
1808 static int apply_transports(LinphoneCore *lc){
1809         Sal *sal=lc->sal;
1810         const char *anyaddr;
1811         LCSipTransports *tr=&lc->sip_conf.transports;
1812
1813         /*first of all invalidate all current registrations so that we can register again with new transports*/
1814         __linphone_core_invalidate_registers(lc);
1815
1816         if (lc->sip_conf.ipv6_enabled)
1817                 anyaddr="::0";
1818         else
1819                 anyaddr="0.0.0.0";
1820
1821         sal_unlisten_ports(sal);
1822         if (tr->udp_port>0){
1823                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1824                         transport_error(lc,"udp",tr->udp_port);
1825                         return -1;
1826                 }
1827         }
1828         if (tr->tcp_port>0){
1829                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1830                         transport_error(lc,"tcp",tr->tcp_port);
1831                 }
1832         }
1833         if (tr->tls_port>0){
1834                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1835                         transport_error(lc,"tls",tr->tls_port);
1836                 }
1837         }
1838         apply_user_agent(lc);
1839         return 0;
1840 }
1841
1842 /**
1843  * Sets the ports to be used for each of transport (UDP or TCP)
1844  *
1845  * A zero value port for a given transport means the transport
1846  * is not used.
1847  *
1848  * @ingroup network_parameters
1849 **/
1850 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1851
1852         if (transports_unchanged(tr,&lc->sip_conf.transports))
1853                 return 0;
1854         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1855
1856         if (linphone_core_ready(lc)){
1857                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1858                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1859                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1860         }
1861
1862         if (lc->sal==NULL) return 0;
1863         return apply_transports(lc);
1864 }
1865
1866 /**
1867  * Retrieves the ports used for each transport (udp, tcp).
1868  * A zero value port for a given transport means the transport
1869  * is not used.
1870  * @ingroup network_parameters
1871 **/
1872 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1873         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1874         return 0;
1875 }
1876
1877 /**
1878  * Sets the UDP port to be used by SIP.
1879  *
1880  * Deprecated: use linphone_core_set_sip_transports() instead.
1881  * @ingroup network_parameters
1882 **/
1883 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1884 {
1885         LCSipTransports tr;
1886         memset(&tr,0,sizeof(tr));
1887         tr.udp_port=port;
1888         linphone_core_set_sip_transports (lc,&tr);
1889 }
1890
1891 /**
1892  * Returns TRUE if IPv6 is enabled.
1893  *
1894  * @ingroup network_parameters
1895  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1896 **/
1897 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1898         return lc->sip_conf.ipv6_enabled;
1899 }
1900
1901 /**
1902  * Turns IPv6 support on or off.
1903  *
1904  * @ingroup network_parameters
1905  *
1906  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1907  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1908  * By default IPv6 support is off.
1909 **/
1910 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1911         if (lc->sip_conf.ipv6_enabled!=val){
1912                 lc->sip_conf.ipv6_enabled=val;
1913                 if (lc->sal){
1914                         /* we need to restart eXosip */
1915                         apply_transports(lc);
1916                 }
1917         }
1918 }
1919
1920
1921 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1922         char result[LINPHONE_IPADDR_SIZE];
1923         bool_t new_status=lc->network_last_status;
1924
1925         /* only do the network up checking every five seconds */
1926         if (lc->network_last_check==0 || (curtime-lc->network_last_check)>=5){
1927                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1928                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1929                         new_status=TRUE;
1930                 }else new_status=FALSE;
1931                 lc->network_last_check=curtime;
1932                 if (new_status!=lc->network_last_status) {
1933                         if (new_status){
1934                                 ms_message("New local ip address is %s",result);
1935                         }
1936                         set_network_reachable(lc,new_status, curtime);
1937                         lc->network_last_status=new_status;
1938                 }
1939         }
1940 }
1941
1942 static void proxy_update(LinphoneCore *lc){
1943         MSList *elem,*next;
1944         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1945         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1946                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1947                 next=elem->next;
1948                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1949                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1950                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1951                         linphone_proxy_config_destroy(cfg);
1952                 }
1953         }
1954 }
1955
1956 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1957         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1958         if (lf!=NULL){
1959                 lf->info=info;
1960                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1961                 if (lc->vtable.buddy_info_updated)
1962                         lc->vtable.buddy_info_updated(lc,lf);
1963         }else{
1964                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1965         }
1966 }
1967
1968 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1969         MSList *elem;
1970         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1971         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1972                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1973                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1974                         if (req->results!=NULL){
1975                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1976                                 ms_list_free(req->results);
1977                                 req->results=NULL;
1978                                 assign_buddy_info(lc,i);
1979                         }
1980                         sip_setup_context_buddy_lookup_free(ctx,req);
1981                         elem->data=NULL;
1982                 }
1983         }
1984         /*purge completed requests */
1985         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1986                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1987         }
1988 }
1989
1990 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1991         const MSList *elem;
1992         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1993         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1994                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1995                 if (lf->info==NULL){
1996                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1997                                 if (linphone_address_get_username(lf->uri)!=NULL){
1998                                         BuddyLookupRequest *req;
1999                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
2000                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
2001                                         buddy_lookup_request_set_key(req,tmp);
2002                                         buddy_lookup_request_set_max_results(req,1);
2003                                         sip_setup_context_buddy_lookup_submit(ctx,req);
2004                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
2005                                         ms_free(tmp);
2006                                 }
2007                         }
2008                 }
2009         }
2010 }
2011
2012 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
2013         LinphoneProxyConfig *cfg=NULL;
2014         linphone_core_get_default_proxy(lc,&cfg);
2015         if (cfg){
2016                 if (lc->bl_refresh){
2017                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
2018                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
2019                                 linphone_core_grab_buddy_infos(lc,cfg);
2020                                 lc->bl_refresh=FALSE;
2021                         }
2022                 }
2023                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
2024         }
2025 }
2026
2027 /**
2028  * Main loop function. It is crucial that your application call it periodically.
2029  *
2030  * @ingroup initializing
2031  * linphone_core_iterate() performs various backgrounds tasks:
2032  * - receiving of SIP messages
2033  * - handles timers and timeout
2034  * - performs registration to proxies
2035  * - authentication retries
2036  * The application MUST call this function periodically, in its main loop.
2037  * Be careful that this function must be called from the same thread as
2038  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
2039  * serialized with a mutex.
2040 **/
2041 void linphone_core_iterate(LinphoneCore *lc){
2042         MSList *calls;
2043         LinphoneCall *call;
2044         time_t curtime=time(NULL);
2045         int elapsed;
2046         bool_t one_second_elapsed=FALSE;
2047
2048         if (curtime-lc->prevtime>=1){
2049                 lc->prevtime=curtime;
2050                 one_second_elapsed=TRUE;
2051         }
2052
2053         if (lc->ecc!=NULL){
2054                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
2055                 if (ecs!=LinphoneEcCalibratorInProgress){
2056                         if (lc->ecc->cb)
2057                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
2058                         if (ecs==LinphoneEcCalibratorDone){
2059                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
2060                                 int margin=len/2;
2061
2062                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-margin,0));
2063                         } else if (ecs == LinphoneEcCalibratorFailed) {
2064                                 lp_config_set_int(lc->config, "sound", "ec_delay", -1);/*use default value from soundcard*/
2065                         } else if (ecs == LinphoneEcCalibratorDoneNoEcho) {
2066                                 linphone_core_enable_echo_cancellation(lc, FALSE);
2067                         }
2068                         ec_calibrator_destroy(lc->ecc);
2069                         lc->ecc=NULL;
2070                 }
2071         }
2072
2073         if (lc->preview_finished){
2074                 lc->preview_finished=0;
2075                 ring_stop(lc->ringstream);
2076                 lc->ringstream=NULL;
2077                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
2078         }
2079
2080         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
2081             && (curtime-lc->dmfs_playing_start_time)>5){
2082                 ring_stop(lc->ringstream);
2083                 lc->ringstream=NULL;
2084                 lc->dmfs_playing_start_time=0;
2085         }
2086
2087         sal_iterate(lc->sal);
2088         if (lc->msevq) ms_event_queue_pump(lc->msevq);
2089         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
2090
2091         proxy_update(lc);
2092
2093         //we have to iterate for each call
2094         calls= lc->calls;
2095         while(calls!= NULL){
2096                 call = (LinphoneCall *)calls->data;
2097                 elapsed = curtime-call->start_time;
2098                  /* get immediately a reference to next one in case the one
2099                  we are going to examine is destroy and removed during
2100                  linphone_core_start_invite() */
2101                 calls=calls->next;
2102                 linphone_call_background_tasks(call,one_second_elapsed);
2103                 if (call->state==LinphoneCallOutgoingInit && (elapsed>=lc->sip_conf.delayed_timeout)){
2104                         /*start the call even if the OPTIONS reply did not arrive*/
2105                         if (call->ice_session != NULL) {
2106                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
2107                                                 ,linphone_core_get_stun_server(lc));
2108                                 linphone_call_delete_ice_session(call);
2109                                 linphone_call_stop_media_streams_for_ice_gathering(call);
2110                         }
2111 #ifdef BUILD_UPNP
2112                         if (call->upnp_session != NULL) {
2113                                 ms_warning("uPnP mapping has not finished yet, proceeded with the call without uPnP anyway.");
2114                                 linphone_call_delete_upnp_session(call);
2115                         }
2116 #endif //BUILD_UPNP
2117                         linphone_core_start_invite(lc,call);
2118                 }
2119                 if (call->state==LinphoneCallIncomingReceived){
2120                         ms_message("incoming call ringing for %i seconds",elapsed);
2121                         if (elapsed>lc->sip_conf.inc_timeout){
2122                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
2123                                 call->log->status=LinphoneCallMissed;
2124                                 call->reason=LinphoneReasonNotAnswered;
2125                                 linphone_core_terminate_call(lc,call);
2126                         }
2127                 }
2128                 if (lc->sip_conf.in_call_timeout > 0 && elapsed>lc->sip_conf.in_call_timeout) {
2129                         ms_message("in call timeout (%i)",lc->sip_conf.in_call_timeout);
2130                         linphone_core_terminate_call(lc,call);
2131                 }
2132         }
2133
2134         if (linphone_core_video_preview_enabled(lc)){
2135                 if (lc->previewstream==NULL && lc->calls==NULL)
2136                         toggle_video_preview(lc,TRUE);
2137 #ifdef VIDEO_ENABLED
2138                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
2139 #endif
2140         }else{
2141                 if (lc->previewstream!=NULL)
2142                         toggle_video_preview(lc,FALSE);
2143         }
2144
2145         linphone_core_run_hooks(lc);
2146         linphone_core_do_plugin_tasks(lc);
2147
2148         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
2149             (curtime-lc->netup_time)>3){
2150                 linphone_core_send_initial_subscribes(lc);
2151                 lc->initial_subscribes_sent=TRUE;
2152         }
2153
2154         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
2155                 lp_config_sync(lc->config);
2156         }
2157 }
2158
2159 /**
2160  * Interpret a call destination as supplied by the user, and returns a fully qualified
2161  * LinphoneAddress.
2162  *
2163  * @ingroup call_control
2164  *
2165  * A sip address should look like DisplayName <sip:username@domain:port> .
2166  * Basically this function performs the following tasks
2167  * - if a phone number is entered, prepend country prefix of the default proxy
2168  *   configuration, eventually escape the '+' by 00.
2169  * - if no domain part is supplied, append the domain name of the default proxy
2170  * - if no sip: is present, prepend it
2171  *
2172  * The result is a syntaxically correct SIP address.
2173 **/
2174
2175 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
2176         enum_lookup_res_t *enumres=NULL;
2177         char *enum_domain=NULL;
2178         LinphoneProxyConfig *proxy=lc->default_proxy;;
2179         char *tmpurl;
2180         LinphoneAddress *uri;
2181
2182         if (is_enum(url,&enum_domain)){
2183                 if (lc->vtable.display_status!=NULL)
2184                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
2185                 if (enum_lookup(enum_domain,&enumres)<0){
2186                         if (lc->vtable.display_status!=NULL)
2187                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
2188                         ms_free(enum_domain);
2189                         return NULL;
2190                 }
2191                 ms_free(enum_domain);
2192                 tmpurl=enumres->sip_address[0];
2193                 uri=linphone_address_new(tmpurl);
2194                 enum_lookup_res_free(enumres);
2195                 return uri;
2196         }
2197         /* check if we have a "sip:" */
2198         if (strstr(url,"sip:")==NULL){
2199                 /* this doesn't look like a true sip uri */
2200                 if (strchr(url,'@')!=NULL){
2201                         /* seems like sip: is missing !*/
2202                         tmpurl=ms_strdup_printf("sip:%s",url);
2203                         uri=linphone_address_new(tmpurl);
2204                         ms_free(tmpurl);
2205                         if (uri){
2206                                 return uri;
2207                         }
2208                 }
2209
2210                 if (proxy!=NULL){
2211                         /* append the proxy domain suffix */
2212                         const char *identity=linphone_proxy_config_get_identity(proxy);
2213                         char normalized_username[128];
2214                         uri=linphone_address_new(identity);
2215                         if (uri==NULL){
2216                                 return NULL;
2217                         }
2218                         linphone_address_set_display_name(uri,NULL);
2219                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2220                                                                 sizeof(normalized_username));
2221                         linphone_address_set_username(uri,normalized_username);
2222                         return uri;
2223                 }else return NULL;
2224         }
2225         uri=linphone_address_new(url);
2226         if (uri!=NULL){
2227                 return uri;
2228         }
2229         /* else we could not do anything with url given by user, so display an error */
2230         if (lc->vtable.display_warning!=NULL){
2231                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2232         }
2233         return NULL;
2234 }
2235
2236 /**
2237  * Returns the default identity SIP address.
2238  *
2239  * @ingroup proxies
2240  * This is an helper function:
2241  *
2242  * If no default proxy is set, this will return the primary contact (
2243  * see linphone_core_get_primary_contact() ). If a default proxy is set
2244  * it returns the registered identity on the proxy.
2245 **/
2246 const char * linphone_core_get_identity(LinphoneCore *lc){
2247         LinphoneProxyConfig *proxy=NULL;
2248         const char *from;
2249         linphone_core_get_default_proxy(lc,&proxy);
2250         if (proxy!=NULL) {
2251                 from=linphone_proxy_config_get_identity(proxy);
2252         }else from=linphone_core_get_primary_contact(lc);
2253         return from;
2254 }
2255
2256 const char * linphone_core_get_route(LinphoneCore *lc){
2257         LinphoneProxyConfig *proxy=NULL;
2258         const char *route=NULL;
2259         linphone_core_get_default_proxy(lc,&proxy);
2260         if (proxy!=NULL) {
2261                 route=linphone_proxy_config_get_route(proxy);
2262         }
2263         return route;
2264 }
2265
2266 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2267         if (call->refer_pending){
2268                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2269                 LinphoneCall *newcall;
2270                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2271                 cp->referer=call;
2272                 ms_message("Starting new call to refered address %s",call->refer_to);
2273                 call->refer_pending=FALSE;
2274                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2275                 linphone_call_params_destroy(cp);
2276                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2277         }
2278 }
2279
2280 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2281         if (referer->op!=NULL){
2282                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2283         }
2284 }
2285
2286 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2287         const MSList *elem;
2288         LinphoneProxyConfig *found_cfg=NULL;
2289         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2290
2291         /*always prefer the default proxy if it is matching the destination uri*/
2292         if (default_cfg){
2293                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2294                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2295                         return default_cfg;
2296         }
2297
2298         /*otherwise iterate through the other proxy config and return the first matching*/
2299         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2300                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2301                 const char *domain=linphone_proxy_config_get_domain(cfg);
2302                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2303                         found_cfg=cfg;
2304                         break;
2305                 }
2306         }
2307         return found_cfg;
2308 }
2309
2310 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2311         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2312         if (cfg==NULL)
2313                 linphone_core_get_default_proxy (lc,&cfg);
2314         if (cfg!=NULL){
2315                 if (route) *route=linphone_proxy_config_get_route(cfg);
2316                 return linphone_proxy_config_get_identity (cfg);
2317         }
2318         return linphone_core_get_primary_contact (lc);
2319 }
2320
2321 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2322         LinphoneAddress *ctt;
2323         const char *localip=call->localip;
2324
2325         /* first use user's supplied ip address if asked*/
2326         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2327                 ctt=linphone_core_get_primary_contact_parsed(lc);
2328                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2329                         linphone_core_get_nat_address_resolved(lc));
2330         }
2331
2332         /* if already choosed, don't change it */
2333         if (call->op && sal_op_get_contact(call->op)!=NULL){
2334                 return NULL;
2335         }
2336         /* if the ping OPTIONS request succeeded use the contact guessed from the
2337          received, rport*/
2338         if (call->ping_op){
2339                 const char *guessed=sal_op_get_contact(call->ping_op);
2340                 if (guessed){
2341                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2342                         return ms_strdup(guessed);
2343                 }
2344         }
2345
2346         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2347         if (dest_proxy && dest_proxy->op){
2348                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2349                 if (fixed_contact) {
2350                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2351                         return ms_strdup(fixed_contact);
2352                 }
2353         }
2354
2355         ctt=linphone_core_get_primary_contact_parsed(lc);
2356
2357         if (ctt!=NULL){
2358                 char *ret;
2359                 /*otherwise use supllied localip*/
2360                 linphone_address_set_domain(ctt,localip);
2361                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2362                 ret=linphone_address_as_string_uri_only(ctt);
2363                 linphone_address_destroy(ctt);
2364                 ms_message("Contact has been fixed using local ip to %s",ret);
2365                 return ret;
2366         }
2367         return NULL;
2368 }
2369
2370 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2371         bool_t ice_ready = FALSE;
2372         bool_t upnp_ready = FALSE;
2373         bool_t ping_ready = FALSE;
2374
2375         if (call->ice_session != NULL) {
2376                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2377         } else {
2378                 ice_ready = TRUE;
2379         }
2380 #ifdef BUILD_UPNP
2381         if (call->upnp_session != NULL) {
2382                 if (linphone_upnp_session_get_state(call->upnp_session) == LinphoneUpnpStateOk) upnp_ready = TRUE;
2383         } else {
2384                 upnp_ready = TRUE;
2385         }
2386 #else
2387         upnp_ready=TRUE;
2388 #endif //BUILD_UPNP
2389         if (call->ping_op != NULL) {
2390                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2391         } else {
2392                 ping_ready = TRUE;
2393         }
2394
2395         if ((ice_ready == TRUE) && (upnp_ready == TRUE) && (ping_ready == TRUE)) {
2396                 return linphone_core_start_invite(lc, call);
2397         }
2398         return 0;
2399 }
2400
2401 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2402         int err;
2403         char *contact;
2404         char *real_url,*barmsg;
2405         char *from;
2406         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2407
2408         /*try to be best-effort in giving real local or routable contact address */
2409         contact=get_fixed_contact(lc,call,dest_proxy);
2410         if (contact){
2411                 sal_op_set_contact(call->op, contact);
2412                 ms_free(contact);
2413         }
2414         linphone_core_stop_dtmf_stream(lc);
2415         linphone_call_init_media_streams(call);
2416         if (lc->ringstream==NULL)
2417                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2418         linphone_call_make_local_media_description(lc,call);
2419         if (!lc->sip_conf.sdp_200_ack){
2420                 call->media_pending=TRUE;
2421                 sal_call_set_local_media_description(call->op,call->localdesc);
2422         }
2423         real_url=linphone_address_as_string(call->log->to);
2424         from=linphone_address_as_string(call->log->from);
2425         err=sal_call(call->op,from,real_url);
2426         call->log->call_id=ms_strdup(sal_op_get_call_id(call->op)); /*must be known at that time*/
2427
2428         if (lc->sip_conf.sdp_200_ack){
2429                 call->media_pending=TRUE;
2430                 sal_call_set_local_media_description(call->op,call->localdesc);
2431         }
2432         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2433         if (lc->vtable.display_status!=NULL)
2434                 lc->vtable.display_status(lc,barmsg);
2435         ms_free(barmsg);
2436
2437         if (err<0){
2438                 if (lc->vtable.display_status!=NULL)
2439                         lc->vtable.display_status(lc,_("Could not call"));
2440                 linphone_call_stop_media_streams(call);
2441                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2442         }else {
2443                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2444         }
2445         ms_free(real_url);
2446         ms_free(from);
2447         return err;
2448 }
2449
2450 /**
2451  * Initiates an outgoing call
2452  *
2453  * @ingroup call_control
2454  * @param lc the LinphoneCore object
2455  * @param url the destination of the call (sip address, or phone number).
2456  *
2457  * The application doesn't own a reference to the returned LinphoneCall object.
2458  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2459  *
2460  * @return a LinphoneCall object or NULL in case of failure
2461 **/
2462 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2463         LinphoneCall *call;
2464         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2465         p->has_video &= !!lc->video_policy.automatically_initiate;
2466         call=linphone_core_invite_with_params(lc,url,p);
2467         linphone_call_params_destroy(p);
2468         return call;
2469 }
2470
2471
2472 /**
2473  * Initiates an outgoing call according to supplied call parameters
2474  *
2475  * @ingroup call_control
2476  * @param lc the LinphoneCore object
2477  * @param url the destination of the call (sip address, or phone number).
2478  * @param p call parameters
2479  *
2480  * The application doesn't own a reference to the returned LinphoneCall object.
2481  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2482  *
2483  * @return a LinphoneCall object or NULL in case of failure
2484 **/
2485 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2486         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2487         if (addr){
2488                 LinphoneCall *call;
2489                 call=linphone_core_invite_address_with_params(lc,addr,p);
2490                 linphone_address_destroy(addr);
2491                 return call;
2492         }
2493         return NULL;
2494 }
2495
2496 /**
2497  * Initiates an outgoing call given a destination LinphoneAddress
2498  *
2499  * @ingroup call_control
2500  * @param lc the LinphoneCore object
2501  * @param addr the destination of the call (sip address).
2502  *
2503  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2504  * created by linphone_core_interpret_url().
2505  * The application doesn't own a reference to the returned LinphoneCall object.
2506  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2507  *
2508  * @return a LinphoneCall object or NULL in case of failure
2509 **/
2510 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2511         LinphoneCall *call;
2512         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2513         p->has_video &= !!lc->video_policy.automatically_initiate;
2514         call=linphone_core_invite_address_with_params (lc,addr,p);
2515         linphone_call_params_destroy(p);
2516         return call;
2517 }
2518
2519
2520 /**
2521  * Initiates an outgoing call given a destination LinphoneAddress
2522  *
2523  * @ingroup call_control
2524  * @param lc the LinphoneCore object
2525  * @param addr the destination of the call (sip address).
2526         @param params call parameters
2527  *
2528  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2529  * created by linphone_core_interpret_url().
2530  * The application doesn't own a reference to the returned LinphoneCall object.
2531  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2532  *
2533  * @return a LinphoneCall object or NULL in case of failure
2534 **/
2535 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2536 {
2537         const char *route=NULL;
2538         const char *from=NULL;
2539         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2540         LinphoneAddress *parsed_url2=NULL;
2541         char *real_url=NULL;
2542         LinphoneCall *call;
2543         bool_t defer = FALSE;
2544
2545         linphone_core_preempt_sound_resources(lc);
2546
2547         if(!linphone_core_can_we_add_call(lc)){
2548                 if (lc->vtable.display_warning)
2549                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2550                 return NULL;
2551         }
2552         linphone_core_get_default_proxy(lc,&proxy);
2553         route=linphone_core_get_route(lc);
2554
2555         real_url=linphone_address_as_string(addr);
2556         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2557
2558         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2559                 ms_message("Overriding default proxy setting for this call:");
2560                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2561         }
2562
2563         if (dest_proxy!=NULL)
2564                 from=linphone_proxy_config_get_identity(dest_proxy);
2565         else if (proxy!=NULL)
2566                 from=linphone_proxy_config_get_identity(proxy);
2567
2568         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2569         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2570
2571         parsed_url2=linphone_address_new(from);
2572
2573         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2574         call->dest_proxy=dest_proxy;
2575         sal_op_set_route(call->op,route);
2576
2577         if(linphone_core_add_call(lc,call)!= 0)
2578         {
2579                 ms_warning("we had a problem in adding the call into the invite ... weird");
2580                 linphone_call_unref(call);
2581                 return NULL;
2582         }
2583         /* this call becomes now the current one*/
2584         lc->current_call=call;
2585         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2586         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2587                 /* Defer the start of the call after the ICE gathering process. */
2588                 linphone_call_init_media_streams(call);
2589                 linphone_call_start_media_streams_for_ice_gathering(call);
2590                 call->start_time=time(NULL);
2591                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2592                         /* Ice candidates gathering failed, proceed with the call anyway. */
2593                         linphone_call_delete_ice_session(call);
2594                         linphone_call_stop_media_streams_for_ice_gathering(call);
2595                 } else {
2596                         defer = TRUE;
2597                 }
2598         }
2599         else if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseUpnp) {
2600 #ifdef BUILD_UPNP
2601                 linphone_call_init_media_streams(call);
2602                 call->start_time=time(NULL);
2603                 if (linphone_core_update_upnp(lc,call)<0) {
2604                         /* uPnP port mappings failed, proceed with the call anyway. */
2605                         linphone_call_delete_upnp_session(call);
2606                 } else {
2607                         defer = TRUE;
2608                 }
2609 #endif //BUILD_UPNP
2610         }
2611
2612         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2613 #ifdef BUILD_UPNP
2614                 if (lc->upnp != NULL && linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp &&
2615                         linphone_upnp_context_get_state(lc->upnp) == LinphoneUpnpStateOk) {
2616 #else //BUILD_UPNP
2617                 {
2618 #endif //BUILD_UPNP
2619                         /*defer the start of the call after the OPTIONS ping*/
2620                         call->ping_replied=FALSE;
2621                         call->ping_op=sal_op_new(lc->sal);
2622                         sal_ping(call->ping_op,from,real_url);
2623                         sal_op_set_user_pointer(call->ping_op,call);
2624                         call->start_time=time(NULL);
2625                         defer = TRUE;
2626                 }
2627         }
2628
2629         if (defer==FALSE) linphone_core_start_invite(lc,call);
2630
2631         if (real_url!=NULL) ms_free(real_url);
2632         return call;
2633 }
2634
2635 /**
2636  * Performs a simple call transfer to the specified destination.
2637  *
2638  * @ingroup call_control
2639  * The remote endpoint is expected to issue a new call to the specified destination.
2640  * The current call remains active and thus can be later paused or terminated.
2641 **/
2642 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2643 {
2644         char *real_url=NULL;
2645         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2646
2647         if (!real_parsed_url){
2648                 /* bad url */
2649                 return -1;
2650         }
2651         if (call==NULL){
2652                 ms_warning("No established call to refer.");
2653                 return -1;
2654         }
2655         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2656         real_url=linphone_address_as_string (real_parsed_url);
2657         sal_call_refer(call->op,real_url);
2658         ms_free(real_url);
2659         linphone_address_destroy(real_parsed_url);
2660         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2661         return 0;
2662 }
2663
2664 /**
2665  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2666  * @param lc linphone core object
2667  * @param call a running call you want to transfer
2668  * @param dest a running call whose remote person will receive the transfer
2669  *
2670  * @ingroup call_control
2671  *
2672  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2673  * The destination call is a call previously established to introduce the transfered person.
2674  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2675  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2676  * close the call with us (the 'dest' call).
2677 **/
2678 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2679         int result = sal_call_refer_with_replaces (call->op,dest->op);
2680         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2681         return result;
2682 }
2683
2684 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2685         LinphoneCall *call = linphone_core_get_current_call(lc);
2686         if(call != NULL)
2687         {
2688                 if(call->dir==LinphoneCallIncoming
2689                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2690                         return TRUE;
2691         }
2692         return FALSE;
2693 }
2694
2695 bool_t linphone_core_incompatible_security(LinphoneCore *lc, SalMediaDescription *md){
2696         if (linphone_core_is_media_encryption_mandatory(lc) && linphone_core_get_media_encryption(lc)==LinphoneMediaEncryptionSRTP){
2697                 int i;
2698                 for(i=0;i<md->n_active_streams;i++){
2699                         SalStreamDescription *sd=&md->streams[i];
2700                         if (sd->proto!=SalProtoRtpSavp){
2701                                 return TRUE;
2702                         }
2703                 }
2704         }
2705         return FALSE;
2706 }
2707
2708 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2709         char *barmesg;
2710         char *tmp;
2711         LinphoneAddress *from_parsed;
2712         SalMediaDescription *md;
2713         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2714         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2715
2716         linphone_call_make_local_media_description(lc,call);
2717         sal_call_set_local_media_description(call->op,call->localdesc);
2718         md=sal_call_get_final_media_description(call->op);
2719         if (md){
2720                 if (sal_media_description_empty(md) || linphone_core_incompatible_security(lc,md)){
2721                         sal_call_decline(call->op,SalReasonMedia,NULL);
2722                         linphone_call_unref(call);
2723                         return;
2724                 }
2725         }
2726
2727         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2728         linphone_address_clean(from_parsed);
2729         tmp=linphone_address_as_string(from_parsed);
2730         linphone_address_destroy(from_parsed);
2731         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2732             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2733         if (lc->vtable.show) lc->vtable.show(lc);
2734         if (lc->vtable.display_status)
2735             lc->vtable.display_status(lc,barmesg);
2736
2737         /* play the ring if this is the only call*/
2738         if (ms_list_size(lc->calls)==1){
2739                 lc->current_call=call;
2740                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2741                         ring_stop(lc->ringstream);
2742                         lc->ringstream=NULL;
2743                         lc->dmfs_playing_start_time=0;
2744                 }
2745                 if (lc->sound_conf.ring_sndcard!=NULL){
2746                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2747                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2748                                 ms_message("Starting local ring...");
2749                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2750                         }
2751                         else
2752                         {
2753                                 ms_message("the local ring is already started");
2754                         }
2755                 }
2756         }else{
2757                 /* else play a tone within the context of the current call */
2758                 call->ringing_beep=TRUE;
2759                 linphone_core_play_tone(lc);
2760         }
2761
2762         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2763
2764         if (call->state==LinphoneCallIncomingReceived){
2765                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2766
2767                 if (propose_early_media || ringback_tone!=NULL){
2768                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2769                         md=sal_call_get_final_media_description(call->op);
2770                         linphone_core_update_streams(lc,call,md);
2771                 }
2772                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2773                         linphone_core_accept_call(lc,call);
2774                 }
2775         }
2776         linphone_call_unref(call);
2777
2778         ms_free(barmesg);
2779         ms_free(tmp);
2780 }
2781
2782 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2783         const char *subject;
2784         call->camera_active=call->params.has_video;
2785         if (call->ice_session != NULL) {
2786                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2787         }
2788 #ifdef BUILD_UPNP
2789         if(call->upnp_session != NULL) {
2790                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2791         }
2792 #endif //BUILD_UPNP
2793         if (call->params.in_conference){
2794                 subject="Conference";
2795         }else{
2796                 subject="Media change";
2797         }
2798         if (lc->vtable.display_status)
2799                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2800         sal_call_set_local_media_description (call->op,call->localdesc);
2801         return sal_call_update(call->op,subject);
2802 }
2803
2804 /**
2805  * @ingroup call_control
2806  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2807  *
2808  * In this version this is limited to the following use cases:
2809  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2810  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2811  *
2812  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2813  * @param lc the core
2814  * @param call the call to be updated
2815  * @param params the new call parameters to use. (may be NULL)
2816  * @return 0 if successful, -1 otherwise.
2817 **/
2818 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2819         int err=0;
2820         if (params!=NULL){
2821                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2822 #ifdef VIDEO_ENABLED
2823                 bool_t has_video = call->params.has_video;
2824
2825                 // Video removing
2826                 if((call->videostream != NULL) && !params->has_video) {
2827                         if (call->ice_session != NULL) {
2828                                 ice_session_remove_check_list(call->ice_session, call->videostream->ms.ice_check_list);
2829                                 call->videostream->ms.ice_check_list = NULL;
2830                         }
2831 #ifdef BUILD_UPNP
2832                         if(call->upnp_session != NULL) {
2833                                 if (linphone_core_update_upnp(lc, call)<0) {
2834                                         /* uPnP port mappings failed, proceed with the call anyway. */
2835                                         linphone_call_delete_upnp_session(call);
2836                                 }
2837                         }
2838 #endif //BUILD_UPNP
2839                 }
2840
2841                 _linphone_call_params_copy(&call->params,params);
2842                 linphone_call_make_local_media_description(lc, call);
2843
2844                 // Video adding
2845                 if (!has_video && call->params.has_video) {
2846                         if (call->ice_session != NULL) {
2847                                 /* Defer call update until the ICE candidates gathering process has finished. */
2848                                 ms_message("Defer call update to gather ICE candidates");
2849                                 linphone_call_init_video_stream(call);
2850                                 video_stream_prepare_video(call->videostream);
2851                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2852                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2853                                         linphone_call_delete_ice_session(call);
2854                                 } else {
2855                                         return err;
2856                                 }
2857                         }
2858 #ifdef BUILD_UPNP
2859                         if(call->upnp_session != NULL) {
2860                                 ms_message("Defer call update to add uPnP port mappings");
2861                                 linphone_call_init_video_stream(call);
2862                                 video_stream_prepare_video(call->videostream);
2863                                 if (linphone_core_update_upnp(lc, call)<0) {
2864                                         /* uPnP port mappings failed, proceed with the call anyway. */
2865                                         linphone_call_delete_upnp_session(call);
2866                                 } else {
2867                                         return err;
2868                                 }
2869                         }
2870 #endif //BUILD_UPNP
2871                 }
2872 #endif
2873                 err = linphone_core_start_update_call(lc, call);
2874         }else{
2875 #ifdef VIDEO_ENABLED
2876                 if (call->videostream!=NULL){
2877                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2878                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2879                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2880                         }else video_stream_update_video_params(call->videostream);
2881                 }
2882 #endif
2883         }
2884
2885         return err;
2886 }
2887
2888 /**
2889  * @ingroup call_control
2890  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2891  *
2892  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2893  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2894  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2895  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2896  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2897  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2898  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2899  *
2900  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2901 **/
2902 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2903         if (call->state==LinphoneCallUpdatedByRemote){
2904                 call->defer_update=TRUE;
2905                 return 0;
2906         }
2907         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2908         return -1;
2909 }
2910
2911 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2912         SalMediaDescription *md;
2913         if (call->ice_session != NULL) {
2914                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2915                         /* Defer the sending of the answer until there are no losing pairs left. */
2916                         return 0;
2917                 }
2918                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2919         }
2920 #ifdef BUILD_UPNP
2921         if(call->upnp_session != NULL) {
2922                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2923         }
2924 #endif //BUILD_UPNP
2925         linphone_call_update_remote_session_id_and_ver(call);
2926         sal_call_set_local_media_description(call->op,call->localdesc);
2927         sal_call_accept(call->op);
2928         md=sal_call_get_final_media_description(call->op);
2929         if (md && !sal_media_description_empty(md))
2930                 linphone_core_update_streams (lc,call,md);
2931         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2932         return 0;
2933 }
2934
2935 /**
2936  * @ingroup call_control
2937  * Accept call modifications initiated by other end.
2938  *
2939  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2940  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2941  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2942  * requested by the other party, such as whether a video stream is requested.
2943  *
2944  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2945  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2946  * If params is not NULL, then the update will be accepted according to the parameters passed.
2947  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2948  * (see linphone_call_params_enable_video()).
2949  * @param lc the linphone core object.
2950  * @param call the LinphoneCall object
2951  * @param params a LinphoneCallParams object describing the call parameters to accept.
2952  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2953 **/
2954 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2955         SalMediaDescription *remote_desc;
2956         bool_t keep_sdp_version;
2957 #ifdef VIDEO_ENABLED
2958         bool_t old_has_video = call->params.has_video;
2959 #endif
2960         if (call->state!=LinphoneCallUpdatedByRemote){
2961                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2962                          linphone_call_state_to_string(call->state));
2963                 return -1;
2964         }
2965         remote_desc = sal_call_get_remote_media_description(call->op);
2966         keep_sdp_version = lp_config_get_int(lc->config, "sip", "keep_sdp_version", 0);
2967         if (keep_sdp_version &&(remote_desc->session_id == call->remote_session_id) && (remote_desc->session_ver == call->remote_session_ver)) {
2968                 /* Remote has sent an INVITE with the same SDP as before, so send a 200 OK with the same SDP as before. */
2969                 ms_warning("SDP version has not changed, send same SDP as before.");
2970                 sal_call_accept(call->op);
2971                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2972                 return 0;
2973         }
2974         if (params==NULL){
2975                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2976         }else
2977                 call->params=*params;
2978
2979         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2980                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2981                 call->params.has_video=FALSE;
2982         }
2983         if (call->current_params.in_conference) {
2984                 ms_warning("Video isn't supported in conference");
2985                 call->params.has_video = FALSE;
2986         }
2987         call->params.has_video &= linphone_core_media_description_contains_video_stream(remote_desc);
2988         call->camera_active=call->params.has_video;
2989         linphone_call_make_local_media_description(lc,call);
2990         if (call->ice_session != NULL) {
2991                 linphone_core_update_ice_from_remote_media_description(call, remote_desc);
2992 #ifdef VIDEO_ENABLED
2993                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2994                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2995                                 linphone_call_init_video_stream(call);
2996                                 video_stream_prepare_video(call->videostream);
2997                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2998                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2999                                         linphone_call_delete_ice_session(call);
3000                                 } else return 0;
3001                         }
3002                 }
3003 #endif //VIDEO_ENABLED
3004         }
3005
3006 #ifdef BUILD_UPNP
3007         if(call->upnp_session != NULL) {
3008                 linphone_core_update_upnp_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
3009 #ifdef VIDEO_ENABLED
3010                 if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
3011                         linphone_call_init_video_stream(call);
3012                         video_stream_prepare_video(call->videostream);
3013                         if (linphone_core_update_upnp(lc, call)<0) {
3014                                 /* uPnP update failed, proceed with the call anyway. */
3015                                 linphone_call_delete_upnp_session(call);
3016                         } else return 0;
3017                 }
3018 #endif //VIDEO_ENABLED
3019         }
3020 #endif //BUILD_UPNP
3021
3022         linphone_core_start_accept_call_update(lc, call);
3023         return 0;
3024 }
3025
3026 /**
3027  * Accept an incoming call.
3028  *
3029  * @ingroup call_control
3030  * Basically the application is notified of incoming calls within the
3031  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3032  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3033  * The application can later accept the call using this method.
3034  * @param lc the LinphoneCore object
3035  * @param call the LinphoneCall object representing the call to be answered.
3036  *
3037 **/
3038 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
3039         return linphone_core_accept_call_with_params(lc,call,NULL);
3040 }
3041
3042 /**
3043  * Accept an incoming call, with parameters.
3044  *
3045  * @ingroup call_control
3046  * Basically the application is notified of incoming calls within the
3047  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3048  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3049  * The application can later accept the call using
3050  * this method.
3051  * @param lc the LinphoneCore object
3052  * @param call the LinphoneCall object representing the call to be answered.
3053  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
3054  *
3055 **/
3056 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
3057 {
3058         LinphoneProxyConfig *cfg=NULL;
3059         const char *contact=NULL;
3060         SalOp *replaced;
3061         SalMediaDescription *new_md;
3062         bool_t was_ringing=FALSE;
3063
3064         if (call==NULL){
3065                 //if just one call is present answer the only one ...
3066                 if(linphone_core_get_calls_nb (lc) != 1)
3067                         return -1;
3068                 else
3069                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
3070         }
3071
3072         if (call->state==LinphoneCallConnected){
3073                 /*call already accepted*/
3074                 return -1;
3075         }
3076
3077         /* check if this call is supposed to replace an already running one*/
3078         replaced=sal_call_get_replaces(call->op);
3079         if (replaced){
3080                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
3081                 if (rc){
3082                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
3083                                    call,rc);
3084                         linphone_core_terminate_call(lc,rc);
3085                 }
3086         }
3087
3088         if (lc->current_call!=call){
3089                 linphone_core_preempt_sound_resources(lc);
3090         }
3091
3092         /*stop ringing */
3093         if (lc->ringstream!=NULL) {
3094                 ms_message("stop ringing");
3095                 ring_stop(lc->ringstream);
3096                 ms_message("ring stopped");
3097                 lc->ringstream=NULL;
3098                 was_ringing=TRUE;
3099         }
3100         if (call->ringing_beep){
3101                 linphone_core_stop_dtmf(lc);
3102                 call->ringing_beep=FALSE;
3103         }
3104
3105         linphone_core_get_default_proxy(lc,&cfg);
3106         call->dest_proxy=cfg;
3107         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
3108
3109         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
3110                 ms_message("Overriding default proxy setting for this call:");
3111                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
3112         }
3113         /*try to be best-effort in giving real local or routable contact address*/
3114         contact=get_fixed_contact(lc,call,call->dest_proxy);
3115         if (contact)
3116                 sal_op_set_contact(call->op,contact);
3117
3118         if (params){
3119                 const SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
3120                 _linphone_call_params_copy(&call->params,params);
3121                 // There might not be a md if the INVITE was lacking an SDP
3122                 // In this case we use the parameters as is.
3123                 if (md) call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
3124                 call->camera_active=call->params.has_video;
3125                 linphone_call_make_local_media_description(lc,call);
3126                 sal_call_set_local_media_description(call->op,call->localdesc);
3127         }
3128
3129         if (call->audiostream==NULL)
3130                 linphone_call_init_media_streams(call);
3131         if (!was_ringing && call->audiostream->ms.ticker==NULL){
3132                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
3133         }
3134
3135         linphone_call_update_remote_session_id_and_ver(call);
3136         sal_call_accept(call->op);
3137         if (lc->vtable.display_status!=NULL)
3138                 lc->vtable.display_status(lc,_("Connected."));
3139         lc->current_call=call;
3140         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
3141         new_md=sal_call_get_final_media_description(call->op);
3142         linphone_core_update_streams(lc, call, new_md);
3143         if (new_md){
3144                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
3145         }else call->media_pending=TRUE;
3146
3147         ms_message("call answered.");
3148         return 0;
3149 }
3150
3151 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
3152         sal_call_terminate(call->op);
3153
3154         /*stop ringing*/
3155         if (lc->ringstream!=NULL) {
3156                 ring_stop(lc->ringstream);
3157                 lc->ringstream=NULL;
3158         }
3159         linphone_call_stop_media_streams(call);
3160
3161 #ifdef BUILD_UPNP
3162         linphone_call_delete_upnp_session(call);
3163 #endif //BUILD_UPNP
3164
3165         if (lc->vtable.display_status!=NULL)
3166                 lc->vtable.display_status(lc,_("Call aborted") );
3167         linphone_call_set_state(call,LinphoneCallError,error);
3168         return 0;
3169 }
3170
3171 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
3172         if (call->state==LinphoneCallIncomingReceived){
3173                 if (call->reason!=LinphoneReasonNotAnswered)
3174                         call->reason=LinphoneReasonDeclined;
3175         }
3176         /*stop ringing*/
3177         if (lc->ringstream!=NULL) {
3178                 ring_stop(lc->ringstream);
3179                 lc->ringstream=NULL;
3180         }
3181
3182         linphone_call_stop_media_streams(call);
3183
3184 #ifdef BUILD_UPNP
3185         linphone_call_delete_upnp_session(call);
3186 #endif //BUILD_UPNP
3187
3188         if (lc->vtable.display_status!=NULL)
3189                 lc->vtable.display_status(lc,_("Call ended") );
3190         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
3191 }
3192
3193 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
3194         if (call->state==LinphoneCallIncomingReceived){
3195                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
3196                 call->reason=LinphoneReasonDeclined;
3197                 terminate_call(lc,call);
3198         }else{
3199                 ms_error("Bad state for call redirection.");
3200                 return -1;
3201     }
3202         return 0;
3203 }
3204
3205
3206 /**
3207  * Terminates a call.
3208  *
3209  * @ingroup call_control
3210  * @param lc the LinphoneCore
3211  * @param the_call the LinphoneCall object representing the call to be terminated.
3212 **/
3213 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
3214 {
3215         LinphoneCall *call;
3216         if (the_call == NULL){
3217                 call = linphone_core_get_current_call(lc);
3218                 if (ms_list_size(lc->calls)==1){
3219                         call=(LinphoneCall*)lc->calls->data;
3220                 }else{
3221                         ms_warning("No unique call to terminate !");
3222                         return -1;
3223                 }
3224         }
3225         else
3226         {
3227                 call = the_call;
3228         }
3229         sal_call_terminate(call->op);
3230         terminate_call(lc,call);
3231         return 0;
3232 }
3233
3234 /**
3235  * Decline a pending incoming call, with a reason.
3236  *
3237  * @ingroup call_control
3238  *
3239  * @param lc the linphone core
3240  * @param call the LinphoneCall, must be in the IncomingReceived state.
3241  * @param reason the reason for rejecting the call: LinphoneReasonDeclined or LinphoneReasonBusy
3242 **/
3243 int linphone_core_decline_call(LinphoneCore *lc, LinphoneCall * call, LinphoneReason reason){
3244         SalReason sal_reason=SalReasonUnknown;
3245         if (call->state!=LinphoneCallIncomingReceived && call->state!=LinphoneCallIncomingEarlyMedia){
3246                 ms_error("linphone_core_decline_call(): Cannot decline a call that is in state %s",linphone_call_state_to_string(call->state));
3247                 return -1;
3248         }
3249         switch(reason){
3250                 case LinphoneReasonDeclined:
3251                         sal_reason=SalReasonDeclined;
3252                 break;
3253                 case LinphoneReasonBusy:
3254                         sal_reason=SalReasonBusy;
3255                 break;
3256                 default:
3257                         ms_error("linphone_core_decline_call(): unsupported reason %s",linphone_reason_to_string(reason));
3258                         return -1;
3259                 break;
3260         }
3261         sal_call_decline(call->op,sal_reason,NULL);
3262         terminate_call(lc,call);
3263         return 0;
3264 }
3265
3266 /**
3267  * Terminates all the calls.
3268  *
3269  * @ingroup call_control
3270  * @param lc The LinphoneCore
3271 **/
3272 int linphone_core_terminate_all_calls(LinphoneCore *lc){
3273         MSList *calls=lc->calls;
3274         while(calls) {
3275                 LinphoneCall *c=(LinphoneCall*)calls->data;
3276                 calls=calls->next;
3277                 linphone_core_terminate_call(lc,c);
3278         }
3279         return 0;
3280 }
3281
3282 /**
3283  * Returns the current list of calls.
3284  *
3285  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
3286  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
3287  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
3288  *
3289  * @ingroup call_control
3290 **/
3291 const MSList *linphone_core_get_calls(LinphoneCore *lc)
3292 {
3293         return lc->calls;
3294 }
3295
3296 /**
3297  * Returns TRUE if there is a call running.
3298  *
3299  * @ingroup call_control
3300 **/
3301 bool_t linphone_core_in_call(const LinphoneCore *lc){
3302         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
3303 }
3304
3305 /**
3306  * Returns The _LinphoneCall struct of the current call if one is in call
3307  *
3308  * @ingroup call_control
3309 **/
3310 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
3311 {
3312         return lc->current_call;
3313 }
3314
3315 /**
3316  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
3317  * this file will be played to the remote user.
3318  *
3319  * @ingroup call_control
3320 **/
3321 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
3322 {
3323         const char *subject=NULL;
3324
3325         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
3326                 ms_warning("Cannot pause this call, it is not active.");
3327                 return -1;
3328         }
3329         linphone_call_make_local_media_description(lc,call);
3330         if (call->ice_session != NULL) {
3331                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3332         }
3333 #ifdef BUILD_UPNP
3334         if(call->upnp_session != NULL) {
3335                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3336         }
3337 #endif //BUILD_UPNP
3338         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
3339                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3340                 subject="Call on hold";
3341         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
3342                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3343                 subject="Call on hold for me too";
3344         }else{
3345                 ms_error("No reason to pause this call, it is already paused or inactive.");
3346                 return -1;
3347         }
3348         sal_call_set_local_media_description(call->op,call->localdesc);
3349         if (sal_call_update(call->op,subject) != 0){
3350                 if (lc->vtable.display_warning)
3351                         lc->vtable.display_warning(lc,_("Could not pause the call"));
3352         }
3353         lc->current_call=NULL;
3354         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
3355         if (lc->vtable.display_status)
3356                 lc->vtable.display_status(lc,_("Pausing the current call..."));
3357         if (call->audiostream || call->videostream)
3358                 linphone_call_stop_media_streams (call);
3359         return 0;
3360 }
3361
3362 /**
3363  * Pause all currently running calls.
3364  * @ingroup call_control
3365 **/
3366 int linphone_core_pause_all_calls(LinphoneCore *lc){
3367         const MSList *elem;
3368         for(elem=lc->calls;elem!=NULL;elem=elem->next){
3369                 LinphoneCall *call=(LinphoneCall *)elem->data;
3370                 LinphoneCallState cs=linphone_call_get_state(call);
3371                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3372                         linphone_core_pause_call(lc,call);
3373                 }
3374         }
3375         return 0;
3376 }
3377
3378 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3379         LinphoneCall *current_call;
3380         if (linphone_core_is_in_conference(lc)){
3381                 linphone_core_leave_conference(lc);
3382                 return;
3383         }
3384         current_call=linphone_core_get_current_call(lc);
3385         if(current_call != NULL){
3386                 ms_message("Pausing automatically the current call.");
3387                 linphone_core_pause_call(lc,current_call);
3388         }
3389 }
3390
3391 /**
3392  * Resumes the call.
3393  *
3394  * @ingroup call_control
3395 **/
3396 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3397 {
3398         char temp[255]={0};
3399         LinphoneCall *call = the_call;
3400         const char *subject="Call resuming";
3401
3402         if(call->state!=LinphoneCallPaused ){
3403                 ms_warning("we cannot resume a call that has not been established and paused before");
3404                 return -1;
3405         }
3406         if (call->params.in_conference==FALSE){
3407                 linphone_core_preempt_sound_resources(lc);
3408                 ms_message("Resuming call %p",call);
3409         }
3410
3411         /* Stop playing music immediately. If remote side is a conference it
3412          prevents the participants to hear it while the 200OK comes back.*/
3413         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3414
3415         linphone_call_make_local_media_description(lc,the_call);
3416         if (call->ice_session != NULL) {
3417                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3418         }
3419 #ifdef BUILD_UPNP
3420         if(call->upnp_session != NULL) {
3421                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3422         }
3423 #endif //BUILD_UPNP
3424         sal_call_set_local_media_description(call->op,call->localdesc);
3425         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3426         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3427         if(sal_call_update(call->op,subject) != 0){
3428                 return -1;
3429         }
3430         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3431         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3432         if (lc->vtable.display_status)
3433                 lc->vtable.display_status(lc,temp);
3434         return 0;
3435 }
3436
3437 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3438         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3439         return !linphone_address_weak_equal (addr,raddr);
3440 }
3441
3442 /**
3443  * Get the call with the remote_address specified
3444  * @param lc
3445  * @param remote_address
3446  * @return the LinphoneCall of the call if found
3447  *
3448  * @ingroup call_control
3449  */
3450 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3451         LinphoneAddress *raddr=linphone_address_new(remote_address);
3452         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3453         if (elem) return (LinphoneCall*) elem->data;
3454         return NULL;
3455 }
3456
3457 int linphone_core_send_publish(LinphoneCore *lc,
3458                                LinphoneOnlineStatus presence_mode)
3459 {
3460         const MSList *elem;
3461         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3462                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3463                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3464         }
3465         return 0;
3466 }
3467
3468 /**
3469  * Set the incoming call timeout in seconds.
3470  *
3471  * @ingroup call_control
3472  * If an incoming call isn't answered for this timeout period, it is
3473  * automatically declined.
3474 **/
3475 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3476         lc->sip_conf.inc_timeout=seconds;
3477         if (linphone_core_ready(lc)){
3478                 lp_config_set_int(lc->config,"sip","inc_timeout",seconds);
3479         }
3480 }
3481
3482 /**
3483  * Returns the incoming call timeout
3484  *
3485  * @ingroup call_control
3486  * See linphone_core_set_inc_timeout() for details.
3487 **/
3488 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3489         return lc->sip_conf.inc_timeout;
3490 }
3491
3492 /**
3493  * Set the in call timeout in seconds.
3494  *
3495  * @ingroup call_control
3496  * After this timeout period, the call is automatically hangup.
3497 **/
3498 void linphone_core_set_in_call_timeout(LinphoneCore *lc, int seconds){
3499         lc->sip_conf.in_call_timeout=seconds;
3500 }
3501
3502 /**
3503  * Returns the in call timeout
3504  *
3505  * @ingroup call_control
3506  * See linphone_core_set_in_call_timeout() for details.
3507 **/
3508 int linphone_core_get_in_call_timeout(LinphoneCore *lc){
3509         return lc->sip_conf.in_call_timeout;
3510 }
3511
3512 /**
3513  * Returns the delayed timeout
3514  *
3515  * @ingroup call_control
3516  * See linphone_core_set_delayed_timeout() for details.
3517 **/
3518 int linphone_core_get_delayed_timeout(LinphoneCore *lc){
3519         return lc->sip_conf.delayed_timeout;
3520 }
3521
3522 /**
3523  * Set the in delayed timeout in seconds.
3524  *
3525  * @ingroup call_control
3526  * After this timeout period, a delayed call (internal call initialisation or resolution) is resumed.
3527 **/
3528 void linphone_core_set_delayed_timeout(LinphoneCore *lc, int seconds){
3529         lc->sip_conf.delayed_timeout=seconds;
3530 }
3531
3532 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3533                                                                                                         const char *contact,
3534                                                                                                         LinphoneOnlineStatus presence_mode)
3535 {
3536         if (minutes_away>0) lc->minutes_away=minutes_away;
3537
3538         if (lc->alt_contact!=NULL) {
3539                 ms_free(lc->alt_contact);
3540                 lc->alt_contact=NULL;
3541         }
3542         if (contact) lc->alt_contact=ms_strdup(contact);
3543         if (lc->presence_mode!=presence_mode){
3544                 linphone_core_notify_all_friends(lc,presence_mode);
3545                 /*
3546                    Improve the use of all LINPHONE_STATUS available.
3547                    !TODO Do not mix "presence status" with "answer status code"..
3548                    Use correct parameter to follow sip_if_match/sip_etag.
3549                  */
3550                 linphone_core_send_publish(lc,presence_mode);
3551         }
3552         lc->presence_mode=presence_mode;
3553 }
3554
3555 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3556         return lc->presence_mode;
3557 }
3558
3559 /**
3560  * Get playback sound level in 0-100 scale.
3561  *
3562  * @ingroup media_parameters
3563 **/
3564 int linphone_core_get_play_level(LinphoneCore *lc)
3565 {
3566         return lc->sound_conf.play_lev;
3567 }
3568
3569 /**
3570  * Get ring sound level in 0-100 scale
3571  *
3572  * @ingroup media_parameters
3573 **/
3574 int linphone_core_get_ring_level(LinphoneCore *lc)
3575 {
3576         return lc->sound_conf.ring_lev;
3577 }
3578
3579 /**
3580  * Get sound capture level in 0-100 scale
3581  *
3582  * @ingroup media_parameters
3583 **/
3584 int linphone_core_get_rec_level(LinphoneCore *lc){
3585         return lc->sound_conf.rec_lev;
3586 }
3587
3588 /**
3589  * Set sound ring level in 0-100 scale
3590  *
3591  * @ingroup media_parameters
3592 **/
3593 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3594         MSSndCard *sndcard;
3595         lc->sound_conf.ring_lev=level;
3596         sndcard=lc->sound_conf.ring_sndcard;
3597         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3598 }
3599
3600 /**
3601  * Allow to control microphone level:  gain in db
3602  *
3603  * @ingroup media_parameters
3604 **/
3605 void linphone_core_set_mic_gain_db (LinphoneCore *lc, float gaindb){
3606         float gain=gaindb;
3607         LinphoneCall *call=linphone_core_get_current_call (lc);
3608         AudioStream *st;
3609
3610         lc->sound_conf.soft_mic_lev=gaindb;
3611
3612         if (linphone_core_ready(lc)){
3613                 lp_config_set_float(lc->config,"sound","mic_gain_db",lc->sound_conf.soft_mic_lev);
3614         }
3615
3616         if (call==NULL || (st=call->audiostream)==NULL){
3617                 ms_message("linphone_core_set_mic_gain_db(): no active call.");
3618                 return;
3619         }
3620         if (st->volrecv){
3621                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_DB_GAIN,&gain);
3622         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3623 }
3624
3625 /**
3626  * Get microphone gain in db.
3627  *
3628  * @ingroup media_parameters
3629 **/
3630 float linphone_core_get_mic_gain_db(LinphoneCore *lc) {
3631         return lc->sound_conf.soft_mic_lev;
3632 }
3633
3634 /**
3635  * Allow to control play level before entering sound card:  gain in db
3636  *
3637  * @ingroup media_parameters
3638 **/
3639 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3640         float gain=gaindb;
3641         LinphoneCall *call=linphone_core_get_current_call (lc);
3642         AudioStream *st;
3643
3644         lc->sound_conf.soft_play_lev=gaindb;
3645         if (linphone_core_ready(lc)){
3646                 lp_config_set_float(lc->config,"sound","playback_gain_db",lc->sound_conf.soft_play_lev);
3647         }
3648
3649         if (call==NULL || (st=call->audiostream)==NULL){
3650                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3651                 return;
3652         }
3653         if (st->volrecv){
3654                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3655         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3656 }
3657
3658 /**
3659  * Get playback gain in db before entering  sound card.
3660  *
3661  * @ingroup media_parameters
3662 **/
3663 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3664         return lc->sound_conf.soft_play_lev;
3665 }
3666
3667 /**
3668  * Set sound playback level in 0-100 scale
3669  *
3670  * @ingroup media_parameters
3671 **/
3672 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3673         MSSndCard *sndcard;
3674         lc->sound_conf.play_lev=level;
3675         sndcard=lc->sound_conf.play_sndcard;
3676         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3677 }
3678
3679 /**
3680  * Set sound capture level in 0-100 scale
3681  *
3682  * @ingroup media_parameters
3683 **/
3684 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3685 {
3686         MSSndCard *sndcard;
3687         lc->sound_conf.rec_lev=level;
3688         sndcard=lc->sound_conf.capt_sndcard;
3689         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3690 }
3691
3692 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3693         MSSndCard *sndcard=NULL;
3694         if (devid!=NULL){
3695                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3696                 if (sndcard!=NULL &&
3697                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3698                         ms_warning("%s card does not have the %s capability, ignoring.",
3699                                 devid,
3700                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3701                         sndcard=NULL;
3702                 }
3703         }
3704         if (sndcard==NULL) {
3705                 /* get a card that has read+write capabilities */
3706                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3707                 /* otherwise refine to the first card having the right capability*/
3708                 if (sndcard==NULL){
3709                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3710                         for(;elem!=NULL;elem=elem->next){
3711                                 sndcard=(MSSndCard*)elem->data;
3712                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3713                         }
3714                 }
3715                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3716                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3717                         if (elem) sndcard=(MSSndCard*)elem->data;
3718         }
3719         }
3720         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3721         return sndcard;
3722 }
3723
3724 /**
3725  * Returns true if the specified sound device can capture sound.
3726  *
3727  * @ingroup media_parameters
3728  * @param lc The LinphoneCore object
3729  * @param devid the device name as returned by linphone_core_get_sound_devices()
3730 **/
3731 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3732         MSSndCard *sndcard;
3733         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3734         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3735         return FALSE;
3736 }
3737
3738 /**
3739  * Returns true if the specified sound device can play sound.
3740  *
3741  * @ingroup media_parameters
3742  * @param lc The LinphoneCore object
3743  * @param devid the device name as returned by linphone_core_get_sound_devices()
3744 **/
3745 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3746         MSSndCard *sndcard;
3747         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3748         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3749         return FALSE;
3750 }
3751
3752 /**
3753  * Sets the sound device used for ringing.
3754  *
3755  * @ingroup media_parameters
3756  * @param lc The LinphoneCore object
3757  * @param devid the device name as returned by linphone_core_get_sound_devices()
3758 **/
3759 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3760         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3761         lc->sound_conf.ring_sndcard=card;
3762         if (card && linphone_core_ready(lc))
3763                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3764         return 0;
3765 }
3766
3767 /**
3768  * Sets the sound device used for playback.
3769  *
3770  * @ingroup media_parameters
3771  * @param lc The LinphoneCore object
3772  * @param devid the device name as returned by linphone_core_get_sound_devices()
3773 **/
3774 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3775         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3776         lc->sound_conf.play_sndcard=card;
3777         if (card &&  linphone_core_ready(lc))
3778                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3779         return 0;
3780 }
3781
3782 /**
3783  * Sets the sound device used for capture.
3784  *
3785  * @ingroup media_parameters
3786  * @param lc The LinphoneCore object
3787  * @param devid the device name as returned by linphone_core_get_sound_devices()
3788 **/
3789 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3790         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3791         lc->sound_conf.capt_sndcard=card;
3792         if (card &&  linphone_core_ready(lc))
3793                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3794         return 0;
3795 }
3796
3797 /**
3798  * Returns the name of the currently assigned sound device for ringing.
3799  *
3800  * @ingroup media_parameters
3801  * @param lc The LinphoneCore object
3802 **/
3803 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3804 {
3805         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3806         return NULL;
3807 }
3808
3809 /**
3810  * Returns the name of the currently assigned sound device for playback.
3811  *
3812  * @ingroup media_parameters
3813  * @param lc The LinphoneCore object
3814 **/
3815 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3816 {
3817         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3818 }
3819
3820 /**
3821  * Returns the name of the currently assigned sound device for capture.
3822  *
3823  * @ingroup media_parameters
3824  * @param lc The LinphoneCore object
3825 **/
3826 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3827 {
3828         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3829 }
3830
3831 /**
3832  * Returns an unmodifiable array of available sound devices.
3833  *
3834  * The array is NULL terminated.
3835  *
3836  * @ingroup media_parameters
3837  * @param lc The LinphoneCore object
3838 **/
3839 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3840         return lc->sound_conf.cards;
3841 }
3842
3843 /**
3844  * Returns an unmodifiable array of available video capture devices.
3845  *
3846  * @ingroup media_parameters
3847  * The array is NULL terminated.
3848 **/
3849 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3850         return lc->video_conf.cams;
3851 }
3852
3853 /**
3854  * Update detection of sound devices.
3855  *
3856  * Use this function when the application is notified of USB plug events, so that
3857  * list of available hardwares for sound playback and capture is updated.
3858  **/
3859 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3860         const char *ringer,*playback,*capture;
3861         ringer=linphone_core_get_ringer_device(lc);
3862         playback=linphone_core_get_playback_device(lc);
3863         capture=linphone_core_get_capture_device(lc);
3864         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3865         build_sound_devices_table(lc);
3866         linphone_core_set_ringer_device(lc,ringer);
3867         linphone_core_set_playback_device(lc,playback);
3868         linphone_core_set_capture_device(lc,capture);
3869 }
3870
3871 /**
3872  * Update detection of camera devices.
3873  *
3874  * Use this function when the application is notified of USB plug events, so that
3875  * list of available hardwares for video capture is updated.
3876  **/
3877 void linphone_core_reload_video_devices(LinphoneCore *lc){
3878         const char *devid;
3879         devid=linphone_core_get_video_device(lc);
3880         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3881         build_video_devices_table(lc);
3882         linphone_core_set_video_device(lc,devid);
3883 }
3884
3885 char linphone_core_get_sound_source(LinphoneCore *lc)
3886 {
3887         return lc->sound_conf.source;
3888 }
3889
3890 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3891 {
3892         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3893         lc->sound_conf.source=source;
3894         if (!sndcard) return;
3895         switch(source){
3896                 case 'm':
3897                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3898                         break;
3899                 case 'l':
3900                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3901                         break;
3902         }
3903
3904 }
3905
3906
3907 /**
3908  * Sets the path to a wav file used for ringing.
3909  *
3910  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3911  * @param lc The LinphoneCore object
3912  *
3913  * @ingroup media_parameters
3914 **/
3915 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3916         if (lc->sound_conf.local_ring!=0){
3917                 ms_free(lc->sound_conf.local_ring);
3918                 lc->sound_conf.local_ring=NULL;
3919         }
3920         if (path)
3921                 lc->sound_conf.local_ring=ms_strdup(path);
3922         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3923                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3924 }
3925
3926 /**
3927  * Returns the path to the wav file used for ringing.
3928  *
3929  * @param lc The LinphoneCore object
3930  * @ingroup media_parameters
3931 **/
3932 const char *linphone_core_get_ring(const LinphoneCore *lc){
3933         return lc->sound_conf.local_ring;
3934 }
3935
3936 /**
3937  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3938  *
3939  * @param path
3940  * @param lc The LinphoneCore object
3941  *
3942  * @ingroup initializing
3943 **/
3944 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3945         sal_set_root_ca(lc->sal, path);
3946 }
3947
3948 /**
3949  * Gets the path to a file or folder containing the trusted root CAs (PEM format)
3950  *
3951  * @param lc The LinphoneCore object
3952  *
3953  * @ingroup initializing
3954 **/
3955 const char *linphone_core_get_root_ca(LinphoneCore *lc){
3956         return sal_get_root_ca(lc->sal);
3957 }
3958
3959 /**
3960  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3961  *
3962  * @ingroup initializing
3963 **/
3964 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3965         sal_verify_server_certificates(lc->sal,yesno);
3966 }
3967
3968 /**
3969  * Specify whether the tls server certificate common name must be verified when connecting to a SIP/TLS server.
3970  * @ingroup initializing
3971 **/
3972 void linphone_core_verify_server_cn(LinphoneCore *lc, bool_t yesno){
3973         sal_verify_server_cn(lc->sal,yesno);
3974 }
3975
3976 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3977         LinphoneCore *lc=(LinphoneCore*)ud;
3978         lc->preview_finished=1;
3979 }
3980
3981 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3982 {
3983         if (lc->ringstream!=0){
3984                 ms_warning("Cannot start ring now,there's already a ring being played");
3985                 return -1;
3986         }
3987         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3988         lc->preview_finished=0;
3989         if (lc->sound_conf.ring_sndcard!=NULL){
3990                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3991                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3992         }
3993         return 0;
3994 }
3995
3996 /**
3997  * Sets the path to a wav file used for ringing back.
3998  *
3999  * Ringback means the ring that is heard when it's ringing at the remote party.
4000  * The file must be a wav 16bit linear.
4001  *
4002  * @ingroup media_parameters
4003 **/
4004 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
4005         if (lc->sound_conf.remote_ring!=0){
4006                 ms_free(lc->sound_conf.remote_ring);
4007         }
4008         lc->sound_conf.remote_ring=ms_strdup(path);
4009 }
4010
4011 /**
4012  * Returns the path to the wav file used for ringing back.
4013  *
4014  * @ingroup media_parameters
4015 **/
4016 const char * linphone_core_get_ringback(const LinphoneCore *lc){
4017         return lc->sound_conf.remote_ring;
4018 }
4019
4020 /**
4021  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
4022  *
4023  * @ingroup media_parameters
4024 **/
4025 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
4026         lc->sound_conf.ec=val;
4027         if ( linphone_core_ready(lc))
4028                 lp_config_set_int(lc->config,"sound","echocancellation",val);
4029 }
4030
4031
4032 /**
4033  * Returns TRUE if echo cancellation is enabled.
4034  *
4035  * @ingroup media_parameters
4036 **/
4037 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
4038         return lc->sound_conf.ec;
4039 }
4040
4041 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
4042         lc->sound_conf.ea=val;
4043 }
4044
4045 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
4046         return lc->sound_conf.ea;
4047 }
4048
4049 /**
4050  * Mutes or unmutes the local microphone.
4051  *
4052  * @ingroup media_parameters
4053 **/
4054 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
4055         LinphoneCall *call=linphone_core_get_current_call(lc);
4056         AudioStream *st=NULL;
4057         if (linphone_core_is_in_conference(lc)){
4058                 lc->conf_ctx.local_muted=val;
4059                 st=lc->conf_ctx.local_participant;
4060         }else if (call==NULL){
4061                 ms_warning("linphone_core_mute_mic(): No current call !");
4062                 return;
4063         }else{
4064                 st=call->audiostream;
4065                 call->audio_muted=val;
4066         }
4067         if (st!=NULL){
4068                 audio_stream_set_mic_gain(st,
4069                         (val==TRUE) ? 0 : pow(10,lc->sound_conf.soft_mic_lev/10));
4070                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
4071                         audio_stream_mute_rtp(st,val);
4072                 }
4073
4074         }
4075 }
4076 /**
4077  * Returns whether microphone is muted.
4078 **/
4079 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
4080         LinphoneCall *call=linphone_core_get_current_call(lc);
4081         if (linphone_core_is_in_conference(lc)){
4082                 return lc->conf_ctx.local_muted;
4083         }else if (call==NULL){
4084                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4085                 return FALSE;
4086         }
4087         return call->audio_muted;
4088 }
4089
4090 // returns rtp transmission status for an active stream
4091 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
4092 // was set on then rtp transmission is also muted
4093 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
4094         LinphoneCall *call=linphone_core_get_current_call(lc);
4095         if (call==NULL){
4096                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4097                 return FALSE;
4098         }
4099         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
4100                 return call->audio_muted;
4101         }
4102         return FALSE;
4103 }
4104
4105 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
4106         lc->sound_conf.agc=val;
4107 }
4108
4109 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
4110         return lc->sound_conf.agc;
4111 }
4112
4113 /**
4114  * Send the specified dtmf.
4115  *
4116  * @ingroup media_parameters
4117  * This function only works during calls. The dtmf is automatically played to the user.
4118  * @param lc The LinphoneCore object
4119  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
4120  *
4121 **/
4122 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
4123 {
4124         LinphoneCall *call=linphone_core_get_current_call(lc);
4125         if (call==NULL){
4126                 ms_warning("linphone_core_send_dtmf(): no active call");
4127                 return;
4128         }
4129         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
4130         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
4131         {
4132                 /* In Band DTMF */
4133                 if (call->audiostream!=NULL){
4134                         audio_stream_send_dtmf(call->audiostream,dtmf);
4135                 }
4136                 else
4137                 {
4138                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
4139                 }
4140         }
4141         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
4142                 /* Out of Band DTMF (use INFO method) */
4143                 sal_call_send_dtmf(call->op,dtmf);
4144         }
4145 }
4146
4147 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
4148         if (lc->net_conf.stun_server!=NULL)
4149                 ms_free(lc->net_conf.stun_server);
4150         if (server)
4151                 lc->net_conf.stun_server=ms_strdup(server);
4152         else lc->net_conf.stun_server=NULL;
4153         if (linphone_core_ready(lc))
4154                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
4155 }
4156
4157 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
4158         return lc->net_conf.stun_server;
4159 }
4160
4161 bool_t linphone_core_upnp_available(const LinphoneCore *lc){
4162 #ifdef BUILD_UPNP
4163         return TRUE;
4164 #else
4165         return FALSE;
4166 #endif //BUILD_UPNP
4167 }
4168
4169 LinphoneUpnpState linphone_core_get_upnp_state(const LinphoneCore *lc){
4170 #ifdef BUILD_UPNP
4171         return linphone_upnp_context_get_state(lc->upnp);
4172 #else
4173         return LinphoneUpnpStateNotAvailable;
4174 #endif //BUILD_UPNP
4175 }
4176
4177 const char * linphone_core_get_upnp_external_ipaddress(const LinphoneCore *lc){
4178 #ifdef BUILD_UPNP
4179         return linphone_upnp_context_get_external_ipaddress(lc->upnp);
4180 #else
4181         return NULL;
4182 #endif //BUILD_UPNP
4183 }
4184
4185
4186 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
4187         return lc->net_conf.relay;
4188 }
4189
4190 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
4191         if (lc->net_conf.relay!=NULL){
4192                 ms_free(lc->net_conf.relay);
4193                 lc->net_conf.relay=NULL;
4194         }
4195         if (addr){
4196                 lc->net_conf.relay=ms_strdup(addr);
4197         }
4198         return 0;
4199 }
4200
4201 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
4202 {
4203         if (lc->net_conf.nat_address!=NULL){
4204                 ms_free(lc->net_conf.nat_address);
4205         }
4206         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
4207         else lc->net_conf.nat_address=NULL;
4208         if (lc->sip_conf.contact) update_primary_contact(lc);
4209 }
4210
4211 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
4212         return lc->net_conf.nat_address;
4213 }
4214
4215 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
4216 {
4217         struct sockaddr_storage ss;
4218         socklen_t ss_len;
4219         int error;
4220         char ipstring [INET6_ADDRSTRLEN];
4221
4222         if (lc->net_conf.nat_address==NULL) return NULL;
4223
4224         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
4225                 return lc->net_conf.nat_address;
4226         }
4227
4228         error = getnameinfo((struct sockaddr *)&ss, ss_len,
4229                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
4230         if (error) {
4231                 return lc->net_conf.nat_address;
4232         }
4233
4234         if (lc->net_conf.nat_address_ip!=NULL){
4235                 ms_free(lc->net_conf.nat_address_ip);
4236         }
4237         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
4238         return lc->net_conf.nat_address_ip;
4239 }
4240
4241 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
4242 #ifndef BUILD_UPNP
4243         if(pol == LinphonePolicyUseUpnp) {
4244                 ms_warning("UPNP is not available, reset firewall policy to no firewall");
4245                 pol = LinphonePolicyNoFirewall;
4246         }
4247 #endif //BUILD_UPNP
4248         lc->net_conf.firewall_policy=pol;
4249 #ifdef BUILD_UPNP
4250         if(pol == LinphonePolicyUseUpnp) {
4251                 if(lc->upnp == NULL) {
4252                         lc->upnp = linphone_upnp_context_new(lc);
4253                 }
4254         } else {
4255                 if(lc->upnp != NULL) {
4256                         linphone_upnp_context_destroy(lc->upnp);
4257                         lc->upnp = NULL;
4258                 }
4259         }
4260         linphone_core_enable_keep_alive(lc, (lc->sip_conf.keepalive_period > 0));
4261 #endif //BUILD_UPNP
4262         if (lc->sip_conf.contact) update_primary_contact(lc);
4263         if (linphone_core_ready(lc))
4264                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
4265 }
4266
4267 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
4268         return lc->net_conf.firewall_policy;
4269 }
4270
4271 /**
4272  * Get the list of call logs (past calls).
4273  *
4274  * @ingroup call_logs
4275 **/
4276 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
4277         return lc->call_logs;
4278 }
4279
4280 /**
4281  * Erase the call log.
4282  *
4283  * @ingroup call_logs
4284 **/
4285 void linphone_core_clear_call_logs(LinphoneCore *lc){
4286         lc->missed_calls=0;
4287         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4288         lc->call_logs=ms_list_free(lc->call_logs);
4289         call_logs_write_to_config_file(lc);
4290 }
4291
4292 /**
4293  * Returns number of missed calls.
4294  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
4295 **/
4296 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
4297         return lc->missed_calls;
4298 }
4299
4300 /**
4301  * Resets the counter of missed calls.
4302 **/
4303 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
4304         lc->missed_calls=0;
4305 }
4306
4307 /**
4308  * Remove a specific call log from call history list.
4309  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
4310  * @param lc the linphone core object
4311  * @param a LinphoneCallLog object.
4312 **/
4313 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
4314         lc->call_logs = ms_list_remove(lc->call_logs, cl);
4315         call_logs_write_to_config_file(lc);
4316         linphone_call_log_destroy(cl);
4317 }
4318
4319 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
4320 #ifdef VIDEO_ENABLED
4321         if (val){
4322                 if (lc->previewstream==NULL){
4323                         lc->previewstream=video_preview_new();
4324                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
4325                         if (lc->video_conf.displaytype)
4326                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
4327                         if (lc->preview_window_id!=0)
4328                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
4329                         video_preview_start(lc->previewstream,lc->video_conf.device);
4330                 }
4331         }else{
4332                 if (lc->previewstream!=NULL){
4333                         video_preview_stop(lc->previewstream);
4334                         lc->previewstream=NULL;
4335                 }
4336         }
4337 #endif
4338 }
4339
4340 /**
4341  * Enables video globally.
4342  *
4343  * @ingroup media_parameters
4344  * This function does not have any effect during calls. It just indicates LinphoneCore to
4345  * initiate future calls with video or not. The two boolean parameters indicate in which
4346  * direction video is enabled. Setting both to false disables video entirely.
4347  *
4348  * @param lc The LinphoneCore object
4349  * @param vcap_enabled indicates whether video capture is enabled
4350  * @param display_enabled indicates whether video display should be shown
4351  *
4352 **/
4353 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
4354 #ifndef VIDEO_ENABLED
4355         if (vcap_enabled || display_enabled)
4356                 ms_warning("This version of linphone was built without video support.");
4357 #endif
4358         lc->video_conf.capture=vcap_enabled;
4359         lc->video_conf.display=display_enabled;
4360         if (linphone_core_ready(lc)){
4361                 lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4362                 lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4363         }
4364         /* need to re-apply network bandwidth settings*/
4365         linphone_core_set_download_bandwidth(lc,
4366                 linphone_core_get_download_bandwidth(lc));
4367         linphone_core_set_upload_bandwidth(lc,
4368                 linphone_core_get_upload_bandwidth(lc));
4369 }
4370
4371 bool_t linphone_core_video_supported(LinphoneCore *lc){
4372 #ifdef VIDEO_ENABLED
4373         return TRUE;
4374 #else
4375         return FALSE;
4376 #endif
4377 }
4378
4379 /**
4380  * Returns TRUE if video is enabled, FALSE otherwise.
4381  * @ingroup media_parameters
4382 **/
4383 bool_t linphone_core_video_enabled(LinphoneCore *lc){
4384         return (lc->video_conf.display || lc->video_conf.capture);
4385 }
4386
4387 /**
4388  * Sets the default policy for video.
4389  * This policy defines whether:
4390  * - video shall be initiated by default for outgoing calls
4391  * - video shall be accepter by default for incoming calls
4392  * @ingroup media_parameters
4393 **/
4394 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
4395         lc->video_policy=*policy;
4396         if (linphone_core_ready(lc)){
4397                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
4398                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
4399         }
4400 }
4401
4402 /**
4403  * Get the default policy for video.
4404  * See linphone_core_set_video_policy() for more details.
4405  * @ingroup media_parameters
4406 **/
4407 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
4408         return &lc->video_policy;
4409 }
4410
4411 /**
4412  * Controls video preview enablement.
4413  *
4414  * @ingroup media_parameters
4415  * Video preview refers to the action of displaying the local webcam image
4416  * to the user while not in call.
4417 **/
4418 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
4419         lc->video_conf.show_local=val;
4420         if (linphone_core_ready(lc))
4421                 lp_config_set_int(lc->config,"video","show_local",val);
4422 }
4423
4424 /**
4425  * Returns TRUE if video previewing is enabled.
4426  * @ingroup media_parameters
4427 **/
4428 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
4429         return lc->video_conf.show_local;
4430 }
4431
4432 /**
4433  * Enables or disable self view during calls.
4434  *
4435  * @ingroup media_parameters
4436  * Self-view refers to having local webcam image inserted in corner
4437  * of the video window during calls.
4438  * This function works at any time, including during calls.
4439 **/
4440 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
4441 #ifdef VIDEO_ENABLED
4442         LinphoneCall *call=linphone_core_get_current_call (lc);
4443         lc->video_conf.selfview=val;
4444         if (call && call->videostream){
4445                 video_stream_enable_self_view(call->videostream,val);
4446         }
4447         if (linphone_core_ready(lc)){
4448                 lp_config_set_int(lc->config,"video","self_view",val);
4449         }
4450 #endif
4451 }
4452
4453 /**
4454  * Returns TRUE if self-view is enabled, FALSE otherwise.
4455  *
4456  * @ingroup media_parameters
4457  *
4458  * Refer to linphone_core_enable_self_view() for details.
4459 **/
4460 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
4461         return lc->video_conf.selfview;
4462 }
4463
4464 /**
4465  * Sets the active video device.
4466  *
4467  * @ingroup media_parameters
4468  * @param lc The LinphoneCore object
4469  * @param id the name of the video device as returned by linphone_core_get_video_devices()
4470 **/
4471 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
4472         MSWebCam *olddev=lc->video_conf.device;
4473         const char *vd;
4474         if (id!=NULL){
4475                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
4476                 if (lc->video_conf.device==NULL){
4477                         ms_warning("Could not find video device %s",id);
4478                 }
4479         }
4480         if (lc->video_conf.device==NULL)
4481                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
4482         if (olddev!=NULL && olddev!=lc->video_conf.device){
4483                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
4484         }
4485         if ( linphone_core_ready(lc) && lc->video_conf.device){
4486                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
4487                 if (vd && strstr(vd,"Static picture")!=NULL){
4488                         vd=NULL;
4489                 }
4490                 lp_config_set_string(lc->config,"video","device",vd);
4491         }
4492         return 0;
4493 }
4494
4495 /**
4496  * Returns the name of the currently active video device.
4497  *
4498  * @param lc The LinphoneCore object
4499  * @ingroup media_parameters
4500 **/
4501 const char *linphone_core_get_video_device(const LinphoneCore *lc){
4502         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
4503         return NULL;
4504 }
4505
4506 #ifdef VIDEO_ENABLED
4507 static VideoStream * get_active_video_stream(LinphoneCore *lc){
4508         VideoStream *vs = NULL;
4509         LinphoneCall *call=linphone_core_get_current_call (lc);
4510         /* Select the video stream from the call in the first place */
4511         if (call && call->videostream) {
4512                 vs = call->videostream;
4513         }
4514         /* If not in call, select the video stream from the preview */
4515         if (vs == NULL && lc->previewstream) {
4516                 vs = lc->previewstream;
4517         }
4518         return vs;
4519 }
4520 #endif
4521
4522 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
4523 #ifdef VIDEO_ENABLED
4524         VideoStream *vs=get_active_video_stream(lc);
4525         /* If we have a video stream (either preview, either from call), we
4526                  have a source and it is using the static picture filter, then
4527                  force the filter to use that picture. */
4528         if (vs && vs->source) {
4529                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4530                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4531                                                                                                                 (void *)path);
4532                 }
4533         }
4534         /* Tell the static image filter to use that image from now on so
4535                  that the image will be used next time it has to be read */
4536         ms_static_image_set_default_image(path);
4537 #else
4538         ms_warning("Video support not compiled.");
4539 #endif
4540         return 0;
4541 }
4542
4543 const char *linphone_core_get_static_picture(LinphoneCore *lc) {
4544         const char *path=NULL;
4545 #ifdef VIDEO_ENABLED
4546         path=ms_static_image_get_default_image();
4547 #else
4548         ms_warning("Video support not compiled.");
4549 #endif
4550         return path;
4551 }
4552
4553 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4554 #ifdef VIDEO_ENABLED
4555         VideoStream *vs = NULL;
4556
4557         vs=get_active_video_stream(lc);
4558
4559         /* If we have a video stream (either preview, either from call), we
4560                  have a source and it is using the static picture filter, then
4561                  force the filter to use that picture. */
4562         if (vs && vs->source) {
4563                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4564                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4565                 }
4566         }
4567 #else
4568         ms_warning("Video support not compiled.");
4569 #endif
4570         return 0;
4571 }
4572
4573 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4574 #ifdef VIDEO_ENABLED
4575         VideoStream *vs = NULL;
4576         vs=get_active_video_stream(lc);
4577         /* If we have a video stream (either preview, either from call), we
4578                  have a source and it is using the static picture filter, then
4579                  force the filter to use that picture. */
4580         if (vs && vs->source) {
4581                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4582
4583                         float fps;
4584
4585                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4586                         return fps;
4587                 }
4588         }
4589 #else
4590         ms_warning("Video support not compiled.");
4591 #endif
4592         return 0;
4593 }
4594
4595 /**
4596  * Returns the native window handle of the video window, casted as an unsigned long.
4597  *
4598  * @ingroup media_parameters
4599 **/
4600 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4601 #ifdef VIDEO_ENABLED
4602         LinphoneCall *call=linphone_core_get_current_call (lc);
4603         if (call && call->videostream)
4604                 return video_stream_get_native_window_id(call->videostream);
4605         if (lc->previewstream)
4606                 return video_stream_get_native_window_id(lc->previewstream);
4607 #endif
4608         return lc->video_window_id;
4609 }
4610
4611 /**@ingroup media_parameters
4612  * Set the native video window id where the video is to be displayed.
4613  * If not set the core will create its own window.
4614 **/
4615 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4616 #ifdef VIDEO_ENABLED
4617         LinphoneCall *call=linphone_core_get_current_call(lc);
4618         lc->video_window_id=id;
4619         if (call!=NULL && call->videostream){
4620                 video_stream_set_native_window_id(call->videostream,id);
4621         }
4622 #endif
4623 }
4624
4625 /**
4626  * Returns the native window handle of the video preview window, casted as an unsigned long.
4627  *
4628  * @ingroup media_parameters
4629 **/
4630 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4631 #ifdef VIDEO_ENABLED
4632         LinphoneCall *call=linphone_core_get_current_call (lc);
4633         if (call && call->videostream)
4634                 return video_stream_get_native_preview_window_id(call->videostream);
4635         if (lc->previewstream)
4636                 return video_preview_get_native_window_id(lc->previewstream);
4637 #endif
4638         return lc->preview_window_id;
4639 }
4640
4641 /**
4642  * @ingroup media_parameters
4643  * Set the native window id where the preview video (local camera) is to be displayed.
4644  * This has to be used in conjonction with linphone_core_use_preview_window().
4645  * If not set the core will create its own window.
4646 **/
4647 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4648         lc->preview_window_id=id;
4649 #ifdef VIDEO_ENABLED
4650         LinphoneCall *call=linphone_core_get_current_call(lc);
4651         if (call!=NULL && call->videostream){
4652                 video_stream_set_native_preview_window_id(call->videostream,id);
4653         }else if (lc->previewstream){
4654                 video_preview_set_native_window_id(lc->previewstream,id);
4655         }
4656 #endif
4657 }
4658
4659 /**
4660  * Can be used to disable video showing to free XV port
4661 **/
4662 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4663 #ifdef VIDEO_ENABLED
4664         ms_error("linphone_core_show_video %d", show);
4665         LinphoneCall *call=linphone_core_get_current_call(lc);
4666         if (call!=NULL && call->videostream){
4667                 video_stream_show_video(call->videostream,show);
4668         }
4669 #endif
4670 }
4671
4672 /**
4673  * Tells the core to use a separate window for local camera preview video, instead of
4674  * inserting local view within the remote video window.
4675  *
4676 **/
4677 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4678         lc->use_preview_window=yesno;
4679 }
4680 /**
4681  * @ingroup media_parameters
4682  *returns current device orientation
4683  */
4684 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4685         return lc->device_rotation;
4686 }
4687 /**
4688  * @ingroup media_parameters
4689  * Tells the core the device current orientation. This can be used by capture filters
4690  * on mobile devices to select between portrait/landscape mode and to produce properly
4691  * oriented images. The exact meaning of the value in rotation if left to each device
4692  * specific implementations.
4693  *@param lc  object.
4694  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4695  *
4696 **/
4697 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4698 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4699         lc->device_rotation = rotation;
4700 #ifdef VIDEO_ENABLED
4701         LinphoneCall *call=linphone_core_get_current_call(lc);
4702         if (call!=NULL && call->videostream){
4703                 video_stream_set_device_rotation(call->videostream,rotation);
4704         }
4705 #endif
4706 }
4707
4708 static MSVideoSizeDef supported_resolutions[]={
4709 #ifdef ENABLE_HD
4710         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4711         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4712 #endif
4713         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4714         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4715         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4716         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4717         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4718         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4719         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4720         {       {0,0}                   ,       NULL    }
4721 };
4722
4723 /**
4724  * Returns the zero terminated table of supported video resolutions.
4725  *
4726  * @ingroup media_parameters
4727 **/
4728 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4729         return supported_resolutions;
4730 }
4731
4732 static MSVideoSize video_size_get_by_name(const char *name){
4733         MSVideoSizeDef *pdef=supported_resolutions;
4734         MSVideoSize null_vsize={0,0};
4735         for(;pdef->name!=NULL;pdef++){
4736                 if (strcasecmp(name,pdef->name)==0){
4737                         return pdef->vsize;
4738                 }
4739         }
4740         ms_warning("Video resolution %s is not supported in linphone.",name);
4741         return null_vsize;
4742 }
4743
4744 static const char *video_size_get_name(MSVideoSize vsize){
4745         MSVideoSizeDef *pdef=supported_resolutions;
4746         for(;pdef->name!=NULL;pdef++){
4747                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4748                         return pdef->name;
4749                 }
4750         }
4751         return NULL;
4752 }
4753
4754 static bool_t video_size_supported(MSVideoSize vsize){
4755         if (video_size_get_name(vsize)) return TRUE;
4756         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4757         return FALSE;
4758 }
4759
4760 /**
4761  * Sets the preferred video size.
4762  *
4763  * @ingroup media_parameters
4764  * This applies only to the stream that is captured and sent to the remote party,
4765  * since we accept all standard video size on the receive path.
4766 **/
4767 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4768         if (video_size_supported(vsize)){
4769                 MSVideoSize oldvsize=lc->video_conf.vsize;
4770                 lc->video_conf.vsize=vsize;
4771                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4772                         toggle_video_preview(lc,FALSE);
4773                         toggle_video_preview(lc,TRUE);
4774                 }
4775                 if ( linphone_core_ready(lc))
4776                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4777         }
4778 }
4779
4780 /**
4781  * Sets the preferred video size by its name.
4782  *
4783  * @ingroup media_parameters
4784  * This is identical to linphone_core_set_preferred_video_size() except
4785  * that it takes the name of the video resolution as input.
4786  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4787 **/
4788 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4789         MSVideoSize vsize=video_size_get_by_name(name);
4790         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4791         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4792         else linphone_core_set_preferred_video_size(lc,default_vsize);
4793 }
4794
4795 /**
4796  * Returns the current preferred video size for sending.
4797  *
4798  * @ingroup media_parameters
4799 **/
4800 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4801         return lc->video_conf.vsize;
4802 }
4803
4804 /**
4805  * Ask the core to stream audio from and to files, instead of using the soundcard.
4806 **/
4807 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4808         lc->use_files=yesno;
4809 }
4810
4811 /**
4812  * Sets a wav file to be played when putting somebody on hold,
4813  * or when files are used instead of soundcards (see linphone_core_use_files()).
4814  *
4815  * The file must be a 16 bit linear wav file.
4816 **/
4817 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4818         LinphoneCall *call=linphone_core_get_current_call(lc);
4819         if (lc->play_file!=NULL){
4820                 ms_free(lc->play_file);
4821                 lc->play_file=NULL;
4822         }
4823         if (file!=NULL) {
4824                 lc->play_file=ms_strdup(file);
4825                 if (call && call->audiostream && call->audiostream->ms.ticker)
4826                         audio_stream_play(call->audiostream,file);
4827         }
4828 }
4829
4830
4831 /**
4832  * Sets a wav file where incoming stream is to be recorded,
4833  * when files are used instead of soundcards (see linphone_core_use_files()).
4834  *
4835  * This feature is different from call recording (linphone_call_params_set_record_file())
4836  * The file will be a 16 bit linear wav file.
4837 **/
4838 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4839         LinphoneCall *call=linphone_core_get_current_call(lc);
4840         if (lc->rec_file!=NULL){
4841                 ms_free(lc->rec_file);
4842                 lc->rec_file=NULL;
4843         }
4844         if (file!=NULL) {
4845                 lc->rec_file=ms_strdup(file);
4846                 if (call && call->audiostream)
4847                         audio_stream_record(call->audiostream,file);
4848         }
4849 }
4850
4851
4852 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4853         LinphoneCall *call=linphone_core_get_current_call (lc);
4854         AudioStream *stream=NULL;
4855         if (call){
4856                 stream=call->audiostream;
4857         }else if (linphone_core_is_in_conference(lc)){
4858                 stream=lc->conf_ctx.local_participant;
4859         }
4860         if (stream){
4861                 return stream->dtmfgen;
4862         }
4863         if (lc->ringstream==NULL){
4864                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4865                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4866                 if (ringcard == NULL)
4867                         return NULL;
4868
4869                 lc->ringstream=ring_start(NULL,0,ringcard);
4870                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4871                 lc->dmfs_playing_start_time=time(NULL);
4872         }else{
4873                 if (lc->dmfs_playing_start_time!=0)
4874                         lc->dmfs_playing_start_time=time(NULL);
4875         }
4876         return lc->ringstream->gendtmf;
4877 }
4878
4879 /**
4880  * @ingroup media_parameters
4881  * Plays a dtmf sound to the local user.
4882  * @param lc #LinphoneCore
4883  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4884  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4885 **/
4886 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4887         MSFilter *f=get_dtmf_gen(lc);
4888         if (f==NULL){
4889                 ms_error("No dtmf generator at this time !");
4890                 return;
4891         }
4892
4893         if (duration_ms>0)
4894                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4895         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4896 }
4897
4898 /**
4899  * @ingroup media_parameters
4900  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4901  * @param lc #LinphoneCore
4902 **/
4903 void linphone_core_play_tone(LinphoneCore *lc){
4904         MSFilter *f=get_dtmf_gen(lc);
4905         MSDtmfGenCustomTone def;
4906         if (f==NULL){
4907                 ms_error("No dtmf generator at this time !");
4908                 return;
4909         }
4910         def.duration=300;
4911         def.frequency=500;
4912         def.amplitude=1;
4913         def.interval=2000;
4914         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4915 }
4916
4917 /**
4918  * @ingroup media_parameters
4919  *
4920  * Stops playing a dtmf started by linphone_core_play_dtmf().
4921 **/
4922 void linphone_core_stop_dtmf(LinphoneCore *lc){
4923         MSFilter *f=get_dtmf_gen(lc);
4924         if (f!=NULL)
4925                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4926 }
4927
4928
4929
4930 /**
4931  * Retrieves the user pointer that was given to linphone_core_new()
4932  *
4933  * @ingroup initializing
4934 **/
4935 void *linphone_core_get_user_data(LinphoneCore *lc){
4936         return lc->data;
4937 }
4938
4939
4940 /**
4941  * Associate a user pointer to the linphone core.
4942  *
4943  * @ingroup initializing
4944 **/
4945 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4946         lc->data=userdata;
4947 }
4948
4949 int linphone_core_get_mtu(const LinphoneCore *lc){
4950         return lc->net_conf.mtu;
4951 }
4952
4953 /**
4954  * Sets the maximum transmission unit size in bytes.
4955  * This information is useful for sending RTP packets.
4956  * Default value is 1500.
4957  *
4958  * @ingroup media_parameters
4959 **/
4960 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4961         lc->net_conf.mtu=mtu;
4962         if (mtu>0){
4963                 if (mtu<500){
4964                         ms_error("MTU too small !");
4965                         mtu=500;
4966                 }
4967                 ms_set_mtu(mtu);
4968                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4969         }else ms_set_mtu(0);//use mediastreamer2 default value
4970 }
4971
4972 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4973         lc->wait_cb=cb;
4974         lc->wait_ctx=user_context;
4975 }
4976
4977 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4978         if (lc->wait_cb){
4979                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4980         }
4981 }
4982
4983 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4984         if (lc->wait_cb){
4985                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4986         }else{
4987 #ifdef WIN32
4988                 Sleep(50000);
4989 #else
4990                 usleep(50000);
4991 #endif
4992         }
4993 }
4994
4995 void linphone_core_stop_waiting(LinphoneCore *lc){
4996         if (lc->wait_cb){
4997                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4998         }
4999 }
5000
5001 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
5002         lc->rtptf=factories;
5003 }
5004
5005 /**
5006  * Retrieve RTP statistics regarding current call.
5007  * @param local RTP statistics computed locally.
5008  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
5009  *
5010  * @note Remote RTP statistics is not implemented yet.
5011  *
5012  * @returns 0 or -1 if no call is running.
5013 **/
5014
5015 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
5016         LinphoneCall *call=linphone_core_get_current_call (lc);
5017         if (call!=NULL){
5018                 if (call->audiostream!=NULL){
5019                         memset(remote,0,sizeof(*remote));
5020                         audio_stream_get_local_rtp_stats (call->audiostream,local);
5021                         return 0;
5022                 }
5023         }
5024         return -1;
5025 }
5026
5027 void net_config_uninit(LinphoneCore *lc)
5028 {
5029         net_config_t *config=&lc->net_conf;
5030
5031         if (config->stun_server!=NULL){
5032                 ms_free(lc->net_conf.stun_server);
5033         }
5034         if (config->nat_address!=NULL){
5035                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
5036                 ms_free(lc->net_conf.nat_address);
5037         }
5038         if (lc->net_conf.nat_address_ip !=NULL){
5039                 ms_free(lc->net_conf.nat_address_ip);
5040         }
5041         lp_config_set_int(lc->config,"net","mtu",config->mtu);
5042 }
5043
5044
5045 void sip_config_uninit(LinphoneCore *lc)
5046 {
5047         MSList *elem;
5048         int i;
5049         sip_config_t *config=&lc->sip_conf;
5050
5051         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
5052         lp_config_set_string(lc->config,"sip","contact",config->contact);
5053         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
5054         lp_config_set_int(lc->config,"sip","in_call_timeout",config->in_call_timeout);
5055         lp_config_set_int(lc->config,"sip","delayed_timeout",config->delayed_timeout);
5056         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
5057         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
5058         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
5059         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
5060         lp_config_set_int(lc->config,"sip","register_only_when_upnp_is_ok",config->register_only_when_upnp_is_ok);
5061
5062
5063
5064         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
5065                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
5066                 linphone_proxy_config_edit(cfg);        /* to unregister */
5067         }
5068
5069         for (i=0;i<20;i++){
5070                 sal_iterate(lc->sal);
5071 #ifndef WIN32
5072                 usleep(100000);
5073 #else
5074                 Sleep(100);
5075 #endif
5076         }
5077
5078         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
5079         ms_list_free(config->proxies);
5080         config->proxies=NULL;
5081
5082         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
5083
5084         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
5085         ms_list_free(lc->auth_info);
5086         lc->auth_info=NULL;
5087
5088         sal_uninit(lc->sal);
5089         lc->sal=NULL;
5090
5091         if (lc->sip_conf.guessed_contact)
5092                 ms_free(lc->sip_conf.guessed_contact);
5093         if (config->contact)
5094                 ms_free(config->contact);
5095
5096 }
5097
5098 void rtp_config_uninit(LinphoneCore *lc)
5099 {
5100         rtp_config_t *config=&lc->rtp_conf;
5101         if (config->audio_rtp_min_port == config->audio_rtp_max_port) {
5102                 lp_config_set_int(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port);
5103         } else {
5104                 lp_config_set_range(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port, config->audio_rtp_max_port);
5105         }
5106         if (config->video_rtp_min_port == config->video_rtp_max_port) {
5107                 lp_config_set_int(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port);
5108         } else {
5109                 lp_config_set_range(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port, config->video_rtp_max_port);
5110         }
5111         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
5112         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
5113         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
5114         lp_config_set_int(lc->config,"rtp","audio_adaptive_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
5115         lp_config_set_int(lc->config,"rtp","video_adaptive_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
5116 }
5117
5118 static void sound_config_uninit(LinphoneCore *lc)
5119 {
5120         sound_config_t *config=&lc->sound_conf;
5121         ms_free(config->cards);
5122
5123         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
5124         lp_config_set_float(lc->config,"sound","playback_gain_db",config->soft_play_lev);
5125         lp_config_set_float(lc->config,"sound","mic_gain_db",config->soft_mic_lev);
5126
5127         if (config->local_ring) ms_free(config->local_ring);
5128         if (config->remote_ring) ms_free(config->remote_ring);
5129         ms_snd_card_manager_destroy();
5130 }
5131
5132 static void video_config_uninit(LinphoneCore *lc)
5133 {
5134         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
5135         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
5136         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
5137         if (lc->video_conf.cams)
5138                 ms_free(lc->video_conf.cams);
5139 }
5140
5141 void _linphone_core_codec_config_write(LinphoneCore *lc){
5142         if (linphone_core_ready(lc)){
5143                 PayloadType *pt;
5144                 codecs_config_t *config=&lc->codecs_conf;
5145                 MSList *node;
5146                 char key[50];
5147                 int index;
5148                 index=0;
5149                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
5150                         pt=(PayloadType*)(node->data);
5151                         sprintf(key,"audio_codec_%i",index);
5152                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5153                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5154                         lp_config_set_int(lc->config,key,"channels",pt->channels);
5155                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5156                         index++;
5157                 }
5158                 sprintf(key,"audio_codec_%i",index);
5159                 lp_config_clean_section (lc->config,key);
5160
5161                 index=0;
5162                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
5163                         pt=(PayloadType*)(node->data);
5164                         sprintf(key,"video_codec_%i",index);
5165                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5166                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5167                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5168                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
5169                         index++;
5170                 }
5171                 sprintf(key,"video_codec_%i",index);
5172                 lp_config_clean_section (lc->config,key);
5173         }
5174 }
5175
5176 static void codecs_config_uninit(LinphoneCore *lc)
5177 {
5178         _linphone_core_codec_config_write(lc);
5179         ms_list_free(lc->codecs_conf.audio_codecs);
5180         ms_list_free(lc->codecs_conf.video_codecs);
5181 }
5182
5183 void ui_config_uninit(LinphoneCore* lc)
5184 {
5185         if (lc->friends){
5186                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
5187                 ms_list_free(lc->friends);
5188                 lc->friends=NULL;
5189         }
5190 }
5191
5192 /**
5193  * Returns the LpConfig object used to manage the storage (config) file.
5194  *
5195  * @ingroup misc
5196  * The application can use the LpConfig object to insert its own private
5197  * sections and pairs of key=value in the configuration file.
5198  *
5199 **/
5200 LpConfig *linphone_core_get_config(LinphoneCore *lc){
5201         return lc->config;
5202 }
5203
5204 static void linphone_core_uninit(LinphoneCore *lc)
5205 {
5206         linphone_core_free_hooks(lc);
5207         while(lc->calls)
5208         {
5209                 LinphoneCall *the_call = lc->calls->data;
5210                 linphone_core_terminate_call(lc,the_call);
5211                 linphone_core_iterate(lc);
5212 #ifdef WIN32
5213                 Sleep(50000);
5214 #else
5215                 usleep(50000);
5216 #endif
5217         }
5218 #ifdef BUILD_UPNP
5219         if(lc->upnp != NULL) {
5220                 linphone_upnp_context_destroy(lc->upnp);
5221                 lc->upnp = NULL;
5222         }
5223 #endif //BUILD_UPNP
5224
5225         if (lc->friends)
5226                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
5227         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
5228 #ifdef VIDEO_ENABLED
5229         if (lc->previewstream!=NULL){
5230                 video_preview_stop(lc->previewstream);
5231                 lc->previewstream=NULL;
5232         }
5233 #endif
5234         ms_event_queue_destroy(lc->msevq);
5235         lc->msevq=NULL;
5236         /* save all config */
5237         net_config_uninit(lc);
5238         rtp_config_uninit(lc);
5239         if (lc->ringstream) ring_stop(lc->ringstream);
5240         sound_config_uninit(lc);
5241         video_config_uninit(lc);
5242         codecs_config_uninit(lc);
5243         ui_config_uninit(lc);
5244         sip_config_uninit(lc);
5245         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
5246         lp_config_destroy(lc->config);
5247         lc->config = NULL; /* Mark the config as NULL to block further calls */
5248         sip_setup_unregister_all();
5249
5250         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
5251         lc->call_logs=ms_list_free(lc->call_logs);
5252
5253         ms_list_for_each(lc->last_recv_msg_ids,ms_free);
5254         lc->last_recv_msg_ids=ms_list_free(lc->last_recv_msg_ids);
5255
5256         // Free struct variable
5257         if(lc->zrtp_secrets_cache != NULL) {
5258                 ms_free(lc->zrtp_secrets_cache);
5259         }
5260         if(lc->play_file!=NULL){
5261                 ms_free(lc->play_file);
5262         }
5263         if(lc->rec_file!=NULL){
5264                 ms_free(lc->rec_file);
5265         }
5266
5267         linphone_core_free_payload_types(lc);
5268         ortp_exit();
5269         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
5270 #ifdef TUNNEL_ENABLED
5271         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
5272 #endif
5273 }
5274
5275 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
5276         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
5277         // second get the list of available proxies
5278         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5279         for(;elem!=NULL;elem=elem->next){
5280                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5281                 if (linphone_proxy_config_register_enabled(cfg) ) {
5282                         if (!isReachable) {
5283                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
5284                         }else{
5285                                 cfg->commit=TRUE;
5286                         }
5287                 }
5288         }
5289         lc->netup_time=curtime;
5290         lc->network_reachable=isReachable;
5291         if(!isReachable) {
5292                 sal_reset_transports(lc->sal);
5293         }
5294 }
5295
5296 void linphone_core_refresh_registers(LinphoneCore* lc) {
5297         const MSList *elem;
5298         if (!lc->network_reachable) {
5299                 ms_warning("Refresh register operation not available (network unreachable)");
5300                 return;
5301         }
5302         elem=linphone_core_get_proxy_config_list(lc);
5303         for(;elem!=NULL;elem=elem->next){
5304                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5305                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
5306                         linphone_proxy_config_refresh_register(cfg);
5307                 }
5308         }
5309 }
5310
5311 void __linphone_core_invalidate_registers(LinphoneCore* lc){
5312         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5313         for(;elem!=NULL;elem=elem->next){
5314                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5315                 if (linphone_proxy_config_register_enabled(cfg)) {
5316                         linphone_proxy_config_edit(cfg);
5317                         linphone_proxy_config_done(cfg);
5318                 }
5319         }
5320 }
5321
5322 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
5323         //first disable automatic mode
5324         if (lc->auto_net_state_mon) {
5325                 ms_message("Disabling automatic network state monitoring");
5326                 lc->auto_net_state_mon=FALSE;
5327         }
5328         set_network_reachable(lc,isReachable, ms_time(NULL));
5329 }
5330
5331 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
5332         return lc->network_reachable;
5333 }
5334 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
5335         return sal_get_socket(lc->sal);
5336 }
5337 /**
5338  * Destroys a LinphoneCore
5339  *
5340  * @ingroup initializing
5341 **/
5342 void linphone_core_destroy(LinphoneCore *lc){
5343         linphone_core_uninit(lc);
5344         ms_free(lc);
5345 }
5346 /**
5347  * Get the number of Call
5348  *
5349  * @ingroup call_control
5350 **/
5351 int linphone_core_get_calls_nb(const LinphoneCore *lc){
5352         return  ms_list_size(lc->calls);;
5353 }
5354
5355 /**
5356  * Check if we do not have exceed the number of simultaneous call
5357  *
5358  * @ingroup call_control
5359 **/
5360 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
5361 {
5362         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
5363                 return TRUE;
5364         ms_message("Maximum amount of simultaneous calls reached !");
5365         return FALSE;
5366 }
5367
5368
5369 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
5370 {
5371         if(linphone_core_can_we_add_call(lc))
5372         {
5373                 lc->calls = ms_list_append(lc->calls,call);
5374                 return 0;
5375         }
5376         return -1;
5377 }
5378
5379 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
5380 {
5381         MSList *it;
5382         MSList *the_calls = lc->calls;
5383
5384         it=ms_list_find(the_calls,call);
5385         if (it)
5386         {
5387                 the_calls = ms_list_remove_link(the_calls,it);
5388         }
5389         else
5390         {
5391                 ms_warning("could not find the call into the list\n");
5392                 return -1;
5393         }
5394         lc->calls = the_calls;
5395         return 0;
5396 }
5397
5398 /**
5399  * Specifiies a ring back tone to be played to far end during incoming calls.
5400 **/
5401 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
5402         if (lc->sound_conf.ringback_tone){
5403                 ms_free(lc->sound_conf.ringback_tone);
5404                 lc->sound_conf.ringback_tone=NULL;
5405         }
5406         if (file)
5407                 lc->sound_conf.ringback_tone=ms_strdup(file);
5408 }
5409
5410 /**
5411  * Returns the ring back tone played to far end during incoming calls.
5412 **/
5413 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
5414         return lc->sound_conf.ringback_tone;
5415 }
5416
5417 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
5418         const MSList *elem;
5419         for(elem=from;elem!=NULL;elem=elem->next){
5420                 PayloadType *pt=(PayloadType*)elem->data;
5421                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
5422                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
5423                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
5424                         return pt;
5425                 }
5426         }
5427         return NULL;
5428 }
5429
5430
5431 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
5432         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
5433         if (result)  {
5434                 return result;
5435         } else {
5436                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
5437                 if (result) {
5438                         return result;
5439                 }
5440         }
5441         /*not found*/
5442         return NULL;
5443 }
5444
5445 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
5446         switch(gs){
5447                 case LinphoneGlobalOff:
5448                         return "LinphoneGlobalOff";
5449                 break;
5450                 case LinphoneGlobalOn:
5451                         return "LinphoneGlobalOn";
5452                 break;
5453                 case LinphoneGlobalStartup:
5454                         return "LinphoneGlobalStartup";
5455                 break;
5456                 case LinphoneGlobalShutdown:
5457                         return "LinphoneGlobalShutdown";
5458                 break;
5459         }
5460         return NULL;
5461 }
5462
5463 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
5464         return lc->state;
5465 }
5466
5467 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
5468         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
5469         linphone_core_init_default_params(lc, p);
5470         return p;
5471 }
5472
5473 const char *linphone_reason_to_string(LinphoneReason err){
5474         switch(err){
5475                 case LinphoneReasonNone:
5476                         return "No error";
5477                 case LinphoneReasonNoResponse:
5478                         return "No response";
5479                 case LinphoneReasonBadCredentials:
5480                         return "Bad credentials";
5481                 case LinphoneReasonDeclined:
5482                         return "Call declined";
5483                 case LinphoneReasonNotFound:
5484                         return "User not found";
5485                 case LinphoneReasonNotAnswered:
5486                         return "Not answered";
5487                 case LinphoneReasonBusy:
5488                         return "Busy";
5489         }
5490         return "unknown error";
5491 }
5492
5493 const char *linphone_error_to_string(LinphoneReason err){
5494         return linphone_reason_to_string(err);
5495 }
5496 /**
5497  * Enables signaling keep alive
5498  */
5499 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
5500 #ifdef BUILD_UPNP
5501         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp) {
5502                 enable = FALSE;
5503         }
5504 #endif //BUILD_UPNP
5505         if (enable > 0) {
5506                 sal_use_tcp_tls_keepalive(lc->sal,lc->sip_conf.tcp_tls_keepalive);
5507                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
5508         } else {
5509                 sal_set_keepalive_period(lc->sal,0);
5510         }
5511 }
5512 /**
5513  * Is signaling keep alive enabled
5514  */
5515 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
5516         return sal_get_keepalive_period(lc->sal) > 0;
5517 }
5518
5519 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
5520         get_dtmf_gen(lc); /*make sure ring stream is started*/
5521         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
5522 }
5523
5524 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
5525         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
5526                 ring_stop(lc->ringstream);
5527                 lc->ringstream=NULL;
5528         }
5529 }
5530
5531 int linphone_core_get_max_calls(LinphoneCore *lc) {
5532         return lc->max_calls;
5533 }
5534 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
5535         lc->max_calls=max;
5536 }
5537
5538 typedef struct Hook{
5539         LinphoneCoreIterateHook fun;
5540         void *data;
5541 }Hook;
5542
5543 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
5544         Hook *h=ms_new(Hook,1);
5545         h->fun=hook;
5546         h->data=hook_data;
5547         return h;
5548 }
5549
5550 static void hook_invoke(Hook *h){
5551         h->fun(h->data);
5552 }
5553
5554 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5555         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
5556 }
5557
5558 static void linphone_core_run_hooks(LinphoneCore *lc){
5559         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
5560 }
5561
5562 static void linphone_core_free_hooks(LinphoneCore *lc){
5563         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
5564         ms_list_free(lc->hooks);
5565         lc->hooks=NULL;
5566 }
5567
5568 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5569         MSList *elem;
5570         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
5571                 Hook *h=(Hook*)elem->data;
5572                 if (h->fun==hook && h->data==hook_data){
5573                         lc->hooks = ms_list_remove_link(lc->hooks,elem);
5574                         ms_free(h);
5575                         return;
5576                 }
5577         }
5578         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
5579 }
5580
5581 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
5582         if (lc->zrtp_secrets_cache != NULL) {
5583                 ms_free(lc->zrtp_secrets_cache);
5584         }
5585         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
5586 }
5587
5588 const char *linphone_core_get_zrtp_secrets_file(LinphoneCore *lc){
5589         return lc->zrtp_secrets_cache;
5590 }
5591
5592 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
5593         if (uri == NULL) return NULL;
5594         MSList *calls=lc->calls;
5595         while(calls) {
5596                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5597                 calls=calls->next;
5598                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5599                 char *current_uri=linphone_address_as_string_uri_only(address);
5600                 if (strcmp(uri,current_uri)==0) {
5601                         ms_free(current_uri);
5602                         return c;
5603                 } else {
5604                         ms_free(current_uri);
5605                 }
5606         }
5607         return NULL;
5608 }
5609
5610
5611 /**
5612  * Check if a call will need the sound resources.
5613  *
5614  * @ingroup call_control
5615  * @param lc The LinphoneCore
5616 **/
5617 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5618         MSList *calls=lc->calls;
5619         while(calls) {
5620                 LinphoneCall *c=(LinphoneCall*)calls->data;
5621                 calls=calls->next;
5622                 switch (c->state) {
5623                         case LinphoneCallOutgoingInit:
5624                         case LinphoneCallOutgoingProgress:
5625                         case LinphoneCallOutgoingRinging:
5626                         case LinphoneCallOutgoingEarlyMedia:
5627                         case LinphoneCallConnected:
5628                         case LinphoneCallRefered:
5629                         case LinphoneCallIncomingEarlyMedia:
5630                         case LinphoneCallUpdating:
5631                                 return TRUE;
5632                         default:
5633                                 break;
5634                 }
5635         }
5636         return FALSE;
5637 }
5638
5639 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5640         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5641 }
5642
5643 /**
5644  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5645 **/
5646 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5647         switch(menc){
5648                 case LinphoneMediaEncryptionSRTP:
5649                         return ortp_srtp_supported();
5650                 case LinphoneMediaEncryptionZRTP:
5651                         return ortp_zrtp_available();
5652                 case LinphoneMediaEncryptionNone:
5653                         return TRUE;
5654         }
5655         return FALSE;
5656 }
5657
5658 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5659         const char *type="none";
5660         int ret=0;
5661         if (menc == LinphoneMediaEncryptionSRTP){
5662                 if (!ortp_srtp_supported()){
5663                         ms_warning("SRTP not supported by library.");
5664                         type="none";
5665                         ret=-1;
5666                 }else type="srtp";
5667         }else if (menc == LinphoneMediaEncryptionZRTP){
5668                 if (!ortp_zrtp_available()){
5669                         ms_warning("ZRTP not supported by library.");
5670                         type="none";
5671                         ret=-1;
5672                 }else type="zrtp";
5673         }
5674         lp_config_set_string(lc->config,"sip","media_encryption",type);
5675         return ret;
5676 }
5677
5678 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5679         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5680
5681         if (menc == NULL)
5682                 return LinphoneMediaEncryptionNone;
5683         else if (strcmp(menc, "srtp")==0)
5684                 return LinphoneMediaEncryptionSRTP;
5685         else if (strcmp(menc, "zrtp")==0)
5686                 return LinphoneMediaEncryptionZRTP;
5687         else
5688                 return LinphoneMediaEncryptionNone;
5689 }
5690
5691 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5692         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5693 }
5694
5695 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5696         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5697 }
5698
5699 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5700         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5701         params->media_encryption=linphone_core_get_media_encryption(lc);
5702         params->in_conference=FALSE;
5703 }
5704
5705 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5706         if (lc->device_id) ms_free(lc->device_id);
5707         lc->device_id=ms_strdup(device_id);
5708 }
5709 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5710         return lc->device_id;
5711 }
5712
5713 /**
5714  * Set the DSCP field for SIP signaling channel.
5715  *
5716  * @ingroup network_parameters
5717  * * The DSCP defines the quality of service in IP packets.
5718  *
5719 **/
5720 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5721         sal_set_dscp(lc->sal,dscp);
5722         if (linphone_core_ready(lc)){
5723                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5724                 apply_transports(lc);
5725         }
5726 }
5727
5728 /**
5729  * Get the DSCP field for SIP signaling channel.
5730  *
5731  * @ingroup network_parameters
5732  * * The DSCP defines the quality of service in IP packets.
5733  *
5734 **/
5735 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5736         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5737 }
5738
5739 /**
5740  * Set the DSCP field for outgoing audio streams.
5741  *
5742  * @ingroup network_parameters
5743  * The DSCP defines the quality of service in IP packets.
5744  *
5745 **/
5746 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5747         if (linphone_core_ready(lc))
5748                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5749 }
5750
5751 /**
5752  * Get the DSCP field for outgoing audio streams.
5753  *
5754  * @ingroup network_parameters
5755  * The DSCP defines the quality of service in IP packets.
5756  *
5757 **/
5758 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5759         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5760 }
5761
5762 /**
5763  * Set the DSCP field for outgoing video streams.
5764  *
5765  * @ingroup network_parameters
5766  * The DSCP defines the quality of service in IP packets.
5767  *
5768 **/
5769 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5770         if (linphone_core_ready(lc))
5771                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5772
5773 }
5774
5775 /**
5776  * Get the DSCP field for outgoing video streams.
5777  *
5778  * @ingroup network_parameters
5779  * The DSCP defines the quality of service in IP packets.
5780  *
5781 **/
5782 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5783         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5784 }