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         lc->rtp_conf.disable_upnp = lp_config_get_int(lc->config, "rtp", "disable_upnp", FALSE);
 755 }
 756
 757 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 758         PayloadType *candidate=NULL;
 759         int i;
 760         PayloadType *it;
 761         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 762                 it=rtp_profile_get_payload(prof,i);
 763                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 764                         && (clock_rate==it->clock_rate || clock_rate<=0)
 765                         && (channels==it->channels || channels<=0) ){
 766                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 767                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 768                                 /*exact match*/
 769                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 770                                 return it;
 771                         }else {
 772                                 if (candidate){
 773                                         if (it->recv_fmtp==NULL) candidate=it;
 774                                 }else candidate=it;
 775                         }
 776                 }
 777         }
 778         if (candidate && recv_fmtp){
 779                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 780         }
 781         return candidate;
 782 }
 783
 784 static bool_t get_codec(LinphoneCore *lc, const char* type, int index, PayloadType **ret){
 785         char codeckey[50];
 786         const char *mime,*fmtp;
 787         int rate,channels,enabled;
 788         PayloadType *pt;
 789         LpConfig *config=lc->config;
 790
 791         *ret=NULL;
 792         snprintf(codeckey,50,"%s_%i",type,index);
 793         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 794         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 795
 796         rate=lp_config_get_int(config,codeckey,"rate",8000);
 797         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 798         channels=lp_config_get_int(config,codeckey,"channels",0);
 799         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 800         pt=find_payload(lc->default_profile,mime,rate,channels,fmtp);
 801         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 802         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 803         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 804                         mime,rate,fmtp ? fmtp : "");
 805         *ret=pt;
 806         return TRUE;
 807 }
 808
 809 #define RANK_END 10000
 810
 811 typedef struct codec_desc{
 812         const char *name;
 813         int rate;
 814 }codec_desc_t;
 815
 816 static codec_desc_t codec_pref_order[]={
 817         {"SILK", 16000},
 818         {"speex", 16000},
 819         {"speex", 8000},
 820         {"pcmu",8000},
 821         {"pcma",8000},
 822         {"VP8",90000},
 823         {"H264",90000},
 824         {"MP4V-ES",90000},
 825         {NULL,0}
 826 };
 827
 828 static int find_codec_rank(const char *mime, int clock_rate){
 829         int i;
 830         for(i=0;codec_pref_order[i].name!=NULL;++i){
 831                 if (strcasecmp(codec_pref_order[i].name,mime)==0 && clock_rate==codec_pref_order[i].rate)
 832                         return i;
 833         }
 834         return RANK_END;
 835 }
 836
 837 static int codec_compare(const PayloadType *a, const PayloadType *b){
 838         int ra,rb;
 839         ra=find_codec_rank(a->mime_type,a->clock_rate);
 840         rb=find_codec_rank(b->mime_type,b->clock_rate);
 841         if (ra>rb) return 1;
 842         if (ra<rb) return -1;
 843         return 0;
 844 }
 845
 846 static MSList *add_missing_codecs(LinphoneCore *lc, SalStreamType mtype, MSList *l){
 847         int i;
 848         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 849                 PayloadType *pt=rtp_profile_get_payload(lc->default_profile,i);
 850                 if (pt){
 851                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 852                                 pt=NULL;
 853                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 854                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 855                                 pt=NULL;
 856                         }
 857                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 858                                 if (ms_list_find(l,pt)==NULL){
 859                                         /*unranked codecs are disabled by default*/
 860                                         if (find_codec_rank(pt->mime_type, pt->clock_rate)!=RANK_END){
 861                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 862                                         }
 863                                         ms_message("Adding new codec %s/%i with fmtp %s",
 864                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 865                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 866                                 }
 867                         }
 868                 }
 869         }
 870         return l;
 871 }
 872
 873 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 874         MSList *elem;
 875         for (elem=l;elem!=NULL;elem=elem->next){
 876                 PayloadType *ept=(PayloadType*)elem->data;
 877                 if (pt==ept)
 878                         return l;
 879         }
 880         l=ms_list_append(l,pt);
 881         return l;
 882 }
 883
 884 static void codecs_config_read(LinphoneCore *lc)
 885 {
 886         int i;
 887         PayloadType *pt;
 888         MSList *audio_codecs=NULL;
 889         MSList *video_codecs=NULL;
 890         for (i=0;get_codec(lc,"audio_codec",i,&pt);i++){
 891                 if (pt){
 892                         if (!ms_filter_codec_supported(pt->mime_type)){
 893                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 894                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 895                 }
 896         }
 897         audio_codecs=add_missing_codecs(lc,SalAudio,audio_codecs);
 898         for (i=0;get_codec(lc,"video_codec",i,&pt);i++){
 899                 if (pt){
 900                         if (!ms_filter_codec_supported(pt->mime_type)){
 901                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 902                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 903                 }
 904         }
 905         video_codecs=add_missing_codecs(lc,SalVideo,video_codecs);
 906         linphone_core_set_audio_codecs(lc,audio_codecs);
 907         linphone_core_set_video_codecs(lc,video_codecs);
 908         linphone_core_update_allocated_audio_bandwidth(lc);
 909 }
 910
 911 static void build_video_devices_table(LinphoneCore *lc){
 912         const MSList *elem;
 913         int i;
 914         int ndev;
 915         const char **devices;
 916         if (lc->video_conf.cams)
 917                 ms_free(lc->video_conf.cams);
 918         /* retrieve all video devices */
 919         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 920         ndev=ms_list_size(elem);
 921         devices=ms_malloc((ndev+1)*sizeof(const char *));
 922         for (i=0;elem!=NULL;elem=elem->next,i++){
 923                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 924         }
 925         devices[ndev]=NULL;
 926         lc->video_conf.cams=devices;
 927 }
 928
 929 static void video_config_read(LinphoneCore *lc){
 930 #ifdef VIDEO_ENABLED
 931         int capture, display, self_view;
 932 #endif
 933         const char *str;
 934 #ifdef VIDEO_ENABLED
 935         LinphoneVideoPolicy vpol;
 936         memset(&vpol, 0, sizeof(LinphoneVideoPolicy));
 937 #endif
 938         build_video_devices_table(lc);
 939
 940         str=lp_config_get_string(lc->config,"video","device",NULL);
 941         if (str && str[0]==0) str=NULL;
 942         linphone_core_set_video_device(lc,str);
 943
 944         linphone_core_set_preferred_video_size_by_name(lc,
 945                 lp_config_get_string(lc->config,"video","size","cif"));
 946
 947 #ifdef VIDEO_ENABLED
 948         capture=lp_config_get_int(lc->config,"video","capture",1);
 949         display=lp_config_get_int(lc->config,"video","display",1);
 950         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 951         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 952         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 953         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 954         if(lc->video_conf.displaytype)
 955                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 956
 957         linphone_core_enable_video(lc,capture,display);
 958         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 959         linphone_core_enable_self_view(lc,self_view);
 960         linphone_core_set_video_policy(lc,&vpol);
 961 #endif
 962 }
 963
 964 static void ui_config_read(LinphoneCore *lc)
 965 {
 966         LinphoneFriend *lf;
 967         int i;
 968         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 969                 linphone_core_add_friend(lc,lf);
 970         }
 971         call_logs_read_from_config_file(lc);
 972 }
 973
 974 /*
 975 static void autoreplier_config_init(LinphoneCore *lc)
 976 {
 977         autoreplier_config_t *config=&lc->autoreplier_conf;
 978         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 979         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 980         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 981         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 982         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 983         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 984 }
 985 */
 986
 987 bool_t linphone_core_tunnel_available(void){
 988 #ifdef TUNNEL_ENABLED
 989         return TRUE;
 990 #else
 991         return FALSE;
 992 #endif
 993 }
 994
 995 /**
 996  * Enable adaptive rate control.
 997  *
 998  * @ingroup media_parameters
 999  *
1000  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
1001  * control the output bitrate of the audio and video encoders, so that we can adapt to the network conditions and
1002  * 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.
1003  * Adaptive rate control feature is enabled by default.
1004 **/
1005 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
1006         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
1007 }
1008
1009 /**
1010  * Returns whether adaptive rate control is enabled.
1011  *
1012  * @ingroup media_parameters
1013  *
1014  * See linphone_core_enable_adaptive_rate_control().
1015 **/
1016 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
1017         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
1018 }
1019
1020 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
1021         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
1022 }
1023
1024 /**
1025  * Sets maximum available download bandwidth
1026  *
1027  * @ingroup media_parameters
1028  *
1029  * This is IP bandwidth, in kbit/s.
1030  * This information is used signaled to other parties during
1031  * calls (within SDP messages) so that the remote end can have
1032  * sufficient knowledge to properly configure its audio & video
1033  * codec output bitrate to not overflow available bandwidth.
1034  *
1035  * @param lc the LinphoneCore object
1036  * @param bw the bandwidth in kbits/s, 0 for infinite
1037  */
1038 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
1039         lc->net_conf.download_bw=bw;
1040         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
1041 }
1042
1043 /**
1044  * Sets maximum available upload bandwidth
1045  *
1046  * @ingroup media_parameters
1047  *
1048  * This is IP bandwidth, in kbit/s.
1049  * This information is used by liblinphone together with remote
1050  * side available bandwidth signaled in SDP messages to properly
1051  * configure audio & video codec's output bitrate.
1052  *
1053  * @param lc the LinphoneCore object
1054  * @param bw the bandwidth in kbits/s, 0 for infinite
1055  */
1056 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
1057         lc->net_conf.upload_bw=bw;
1058         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
1059 }
1060
1061 /**
1062  * Retrieve the maximum available download bandwidth.
1063  *
1064  * @ingroup media_parameters
1065  *
1066  * This value was set by linphone_core_set_download_bandwidth().
1067  *
1068 **/
1069 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
1070         return lc->net_conf.download_bw;
1071 }
1072
1073 /**
1074  * Retrieve the maximum available upload bandwidth.
1075  *
1076  * @ingroup media_parameters
1077  *
1078  * This value was set by linphone_core_set_upload_bandwidth().
1079  *
1080 **/
1081 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
1082         return lc->net_conf.upload_bw;
1083 }
1084 /**
1085  * Set audio packetization time linphone expects to receive from peer.
1086  * A value of zero means that ptime is not specified.
1087  * @ingroup media_parameters
1088  */
1089 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
1090         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
1091 }
1092
1093 /**
1094  * Get audio packetization time linphone expects to receive from peer.
1095  * A value of zero means that ptime is not specified.
1096  * @ingroup media_parameters
1097  */
1098 int linphone_core_get_download_ptime(LinphoneCore *lc) {
1099         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
1100 }
1101
1102 /**
1103  * Set audio packetization time linphone will send (in absence of requirement from peer)
1104  * A value of 0 stands for the current codec default packetization time.
1105  *
1106  * @ingroup media_parameters
1107 **/
1108 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
1109         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
1110 }
1111
1112 /**
1113  * Set audio packetization time linphone will send (in absence of requirement from peer)
1114  * A value of 0 stands for the current codec default packetization time.
1115  *
1116  *
1117  * @ingroup media_parameters
1118 **/
1119 int linphone_core_get_upload_ptime(LinphoneCore *lc){
1120         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
1121 }
1122
1123
1124
1125 /**
1126  * Returns liblinphone's version as a string.
1127  *
1128  * @ingroup misc
1129  *
1130 **/
1131 const char * linphone_core_get_version(void){
1132         return liblinphone_version;
1133 }
1134
1135 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1136         PayloadType *pt;
1137         pt=payload_type_clone(const_pt);
1138         if (number==-1){
1139                 /*look for a free number */
1140                 MSList *elem;
1141                 int i;
1142                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1143                         bool_t already_assigned=FALSE;
1144                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1145                                 PayloadType *it=(PayloadType*)elem->data;
1146                                 if (payload_type_get_number(it)==i){
1147                                         already_assigned=TRUE;
1148                                         break;
1149                                 }
1150                         }
1151                         if (!already_assigned){
1152                                 number=i;
1153                                 lc->dyn_pt=i+1;
1154                                 break;
1155                         }
1156                 }
1157                 if (number==-1){
1158                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1159                 }
1160         }
1161         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1162         payload_type_set_number(pt,number);
1163         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1164         rtp_profile_set_payload(lc->default_profile,number,pt);
1165         lc->payload_types=ms_list_append(lc->payload_types,pt);
1166 }
1167
1168 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1169         RtpProfile *prof=&av_profile;
1170         int i;
1171         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1172                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1173                 if (pt){
1174                         if (payload_type_get_number(pt)!=i){
1175                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1176                         }
1177                 }
1178         }
1179 }
1180
1181 static void linphone_core_free_payload_types(LinphoneCore *lc){
1182         rtp_profile_clear_all(lc->default_profile);
1183         rtp_profile_destroy(lc->default_profile);
1184         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1185         ms_list_free(lc->payload_types);
1186         lc->payload_types=NULL;
1187 }
1188
1189 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1190         lc->state=gstate;
1191         if (lc->vtable.global_state_changed){
1192                 lc->vtable.global_state_changed(lc,gstate,message);
1193         }
1194 }
1195 static void misc_config_read (LinphoneCore *lc) {
1196         LpConfig *config=lc->config;
1197     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1198     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1199 }
1200
1201
1202
1203
1204 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1205     const char *factory_config_path, void * userdata)
1206 {
1207         ms_message("Initializing LinphoneCore %s", linphone_core_get_version());
1208         memset (lc, 0, sizeof (LinphoneCore));
1209         lc->data=userdata;
1210         lc->ringstream_autorelease=TRUE;
1211
1212         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1213
1214         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1215         ortp_init();
1216         lc->dyn_pt=96;
1217         lc->default_profile=rtp_profile_new("default profile");
1218         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1219         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1220         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1221         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1222         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1223         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1224         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1225         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1226
1227 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1228         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1229          - to workaround potential packet losses
1230          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1231          */
1232         _linphone_core_configure_resolver();
1233 #endif
1234
1235 #ifdef ENABLE_NONSTANDARD_GSM
1236         {
1237                 PayloadType *pt;
1238                 pt=payload_type_clone(&payload_type_gsm);
1239                 pt->clock_rate=11025;
1240                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1241                 pt->clock_rate=22050;
1242                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1243                 payload_type_destroy(pt);
1244         }
1245 #endif
1246
1247 #ifdef VIDEO_ENABLED
1248         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1249         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1250         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1251         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1252         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1253         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1254         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1255         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1256         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1257 #endif
1258
1259         /*add all payload type for which we don't care about the number */
1260         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1261         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1262         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1263         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1264         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1265         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1266         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1267         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1268         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1269         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1270         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1271         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1272         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1273         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1274         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1275         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1276         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1277         linphone_core_handle_static_payloads(lc);
1278
1279         ms_init();
1280         /* create a mediastreamer2 event queue and set it as global */
1281         /* This allows to run event's callback in linphone_core_iterate() */
1282         lc->msevq=ms_event_queue_new();
1283         ms_set_global_event_queue(lc->msevq);
1284
1285         lc->config=lp_config_new(config_path);
1286         if (factory_config_path)
1287                 lp_config_read_file(lc->config,factory_config_path);
1288
1289         lc->sal=sal_init();
1290         sal_set_user_pointer(lc->sal,lc);
1291         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1292
1293         lc->network_last_check = 0;
1294         lc->network_last_status = FALSE;
1295
1296         sip_setup_register_all();
1297         sound_config_read(lc);
1298         net_config_read(lc);
1299         rtp_config_read(lc);
1300         codecs_config_read(lc);
1301         sip_config_read(lc); /* this will start eXosip*/
1302         video_config_read(lc);
1303         //autoreplier_config_init(&lc->autoreplier_conf);
1304         lc->presence_mode=LinphoneStatusOnline;
1305         misc_config_read(lc);
1306         ui_config_read(lc);
1307 #ifdef TUNNEL_ENABLED
1308         lc->tunnel=linphone_core_tunnel_new(lc);
1309         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1310 #endif
1311         if (lc->vtable.display_status)
1312                 lc->vtable.display_status(lc,_("Ready"));
1313         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1314         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1315 }
1316
1317 /**
1318  * Instanciates a LinphoneCore object.
1319  * @ingroup initializing
1320  *
1321  * The LinphoneCore object is the primary handle for doing all phone actions.
1322  * It should be unique within your application.
1323  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1324  * @param config_path a path to a config file. If it does not exists it will be created.
1325  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1326  *             become persistent over the life of the LinphoneCore object.
1327  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1328  * @param factory_config_path a path to a read-only config file that can be used to
1329  *        to store hard-coded preference such as proxy settings or internal preferences.
1330  *        The settings in this factory file always override the one in the normal config file.
1331  *        It is OPTIONAL, use NULL if unneeded.
1332  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1333  *        callbacks) using linphone_core_get_user_data().
1334  *
1335 **/
1336 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1337                                                 const char *config_path, const char *factory_config_path, void * userdata)
1338 {
1339         LinphoneCore *core=ms_new(LinphoneCore,1);
1340         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1341         return core;
1342 }
1343
1344 /**
1345  * Returns the list of available audio codecs.
1346  *
1347  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1348  * structure holding the codec information.
1349  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1350  * (such as the order of codecs).
1351  * @ingroup media_parameters
1352 **/
1353 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1354 {
1355         return lc->codecs_conf.audio_codecs;
1356 }
1357
1358 /**
1359  * Returns the list of available video codecs.
1360  *
1361  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1362  * structure holding the codec information.
1363  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1364  * (such as the order of codecs).
1365  * @ingroup media_parameters
1366 **/
1367 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1368 {
1369         return lc->codecs_conf.video_codecs;
1370 }
1371
1372 /**
1373  * Sets the local "from" identity.
1374  *
1375  * @ingroup proxies
1376  * This data is used in absence of any proxy configuration or when no
1377  * default proxy configuration is set. See LinphoneProxyConfig
1378 **/
1379 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1380 {
1381         LinphoneAddress *ctt;
1382
1383         if ((ctt=linphone_address_new(contact))==0) {
1384                 ms_error("Bad contact url: %s",contact);
1385                 return -1;
1386         }
1387         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1388         lc->sip_conf.contact=ms_strdup(contact);
1389         if (lc->sip_conf.guessed_contact!=NULL){
1390                 ms_free(lc->sip_conf.guessed_contact);
1391                 lc->sip_conf.guessed_contact=NULL;
1392         }
1393         linphone_address_destroy(ctt);
1394         return 0;
1395 }
1396
1397
1398 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1399 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1400         const char *ip;
1401         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1402             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1403                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1404                 return;
1405         }
1406 #ifdef BUILD_UPNP
1407         else if (lc->upnp != NULL && linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp &&
1408                         linphone_upnp_context_get_state(lc->upnp) == LinphoneUpnpStateOk) {
1409                 ip = linphone_upnp_context_get_external_ipaddress(lc->upnp);
1410                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1411                 return;
1412         }
1413 #endif //BUILD_UPNP
1414         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1415                 return;
1416         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1417         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1418 }
1419
1420 static void update_primary_contact(LinphoneCore *lc){
1421         char *guessed=NULL;
1422         char tmp[LINPHONE_IPADDR_SIZE];
1423
1424         LinphoneAddress *url;
1425         if (lc->sip_conf.guessed_contact!=NULL){
1426                 ms_free(lc->sip_conf.guessed_contact);
1427                 lc->sip_conf.guessed_contact=NULL;
1428         }
1429         url=linphone_address_new(lc->sip_conf.contact);
1430         if (!url){
1431                 ms_error("Could not parse identity contact !");
1432                 url=linphone_address_new("sip:unknown@unkwownhost");
1433         }
1434         linphone_core_get_local_ip(lc, NULL, tmp);
1435         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1436                 ms_warning("Local loopback network only !");
1437                 lc->sip_conf.loopback_only=TRUE;
1438         }else lc->sip_conf.loopback_only=FALSE;
1439         linphone_address_set_domain(url,tmp);
1440         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1441         guessed=linphone_address_as_string(url);
1442         lc->sip_conf.guessed_contact=guessed;
1443         linphone_address_destroy(url);
1444 }
1445
1446 /**
1447  * Returns the default identity when no proxy configuration is used.
1448  *
1449  * @ingroup proxies
1450 **/
1451 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1452         char *identity;
1453
1454         if (lc->sip_conf.guess_hostname){
1455                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1456                         update_primary_contact(lc);
1457                 }
1458                 identity=lc->sip_conf.guessed_contact;
1459         }else{
1460                 identity=lc->sip_conf.contact;
1461         }
1462         return identity;
1463 }
1464
1465 /**
1466  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1467  *
1468  * @ingroup proxies
1469 **/
1470 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1471         lc->sip_conf.guess_hostname=val;
1472 }
1473
1474 /**
1475  * Returns TRUE if hostname part of primary contact is guessed automatically.
1476  *
1477  * @ingroup proxies
1478 **/
1479 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1480         return lc->sip_conf.guess_hostname;
1481 }
1482
1483 /**
1484  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1485  * instead of const char*
1486  *
1487  * @ingroup proxies
1488 **/
1489 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1490         return linphone_address_new(linphone_core_get_primary_contact(lc));
1491 }
1492
1493 /**
1494  * Sets the list of audio codecs.
1495  *
1496  * @ingroup media_parameters
1497  * The list is taken by the LinphoneCore thus the application should not free it.
1498  * This list is made of struct PayloadType describing the codec parameters.
1499 **/
1500 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1501 {
1502         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1503         lc->codecs_conf.audio_codecs=codecs;
1504         _linphone_core_codec_config_write(lc);
1505         return 0;
1506 }
1507
1508 /**
1509  * Sets the list of video codecs.
1510  *
1511  * @ingroup media_parameters
1512  * The list is taken by the LinphoneCore thus the application should not free it.
1513  * This list is made of struct PayloadType describing the codec parameters.
1514 **/
1515 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1516 {
1517         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1518         lc->codecs_conf.video_codecs=codecs;
1519         _linphone_core_codec_config_write(lc);
1520         return 0;
1521 }
1522
1523 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1524 {
1525         return lc->friends;
1526 }
1527
1528 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1529 {
1530         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1531 }
1532
1533 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1534 {
1535         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1536 }
1537
1538 /**
1539  * Returns the nominal audio jitter buffer size in milliseconds.
1540  *
1541  * @ingroup media_parameters
1542 **/
1543 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1544 {
1545         return lc->rtp_conf.audio_jitt_comp;
1546 }
1547
1548 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1549 {
1550         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1551 }
1552
1553 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1554 {
1555         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1556 }
1557
1558 /**
1559  * Returns the nominal video jitter buffer size in milliseconds.
1560  *
1561  * @ingroup media_parameters
1562 **/
1563 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1564 {
1565         return lc->rtp_conf.video_jitt_comp;
1566 }
1567
1568 /**
1569  * Returns the UDP port used for audio streaming.
1570  *
1571  * @ingroup network_parameters
1572 **/
1573 int linphone_core_get_audio_port(const LinphoneCore *lc)
1574 {
1575         return lc->rtp_conf.audio_rtp_min_port;
1576 }
1577
1578 /**
1579  * Get the audio port range from which is randomly chosen the UDP port used for audio streaming.
1580  *
1581  * @ingroup network_parameters
1582  */
1583 void linphone_core_get_audio_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1584 {
1585         *min_port = lc->rtp_conf.audio_rtp_min_port;
1586         *max_port = lc->rtp_conf.audio_rtp_max_port;
1587 }
1588
1589 /**
1590  * Returns the UDP port used for video streaming.
1591  *
1592  * @ingroup network_parameters
1593 **/
1594 int linphone_core_get_video_port(const LinphoneCore *lc){
1595         return lc->rtp_conf.video_rtp_min_port;
1596 }
1597
1598 /**
1599  * Get the video port range from which is randomly chosen the UDP port used for video streaming.
1600  *
1601  * @ingroup network_parameters
1602  */
1603 void linphone_core_get_video_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1604 {
1605         *min_port = lc->rtp_conf.video_rtp_min_port;
1606         *max_port = lc->rtp_conf.video_rtp_max_port;
1607 }
1608
1609
1610 /**
1611  * Returns the value in seconds of the no-rtp timeout.
1612  *
1613  * @ingroup media_parameters
1614  * When no RTP or RTCP packets have been received for a while
1615  * LinphoneCore will consider the call is broken (remote end crashed or
1616  * disconnected from the network), and thus will terminate the call.
1617  * The no-rtp timeout is the duration above which the call is considered broken.
1618 **/
1619 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1620         return lc->rtp_conf.nortp_timeout;
1621 }
1622
1623 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1624         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1625 }
1626
1627 /**
1628  * Sets the nominal audio jitter buffer size in milliseconds.
1629  *
1630  * @ingroup media_parameters
1631 **/
1632 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1633 {
1634         lc->rtp_conf.audio_jitt_comp=value;
1635 }
1636
1637 /**
1638  * Sets the nominal video jitter buffer size in milliseconds.
1639  *
1640  * @ingroup media_parameters
1641 **/
1642 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1643 {
1644         lc->rtp_conf.video_jitt_comp=value;
1645 }
1646
1647 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1648         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1649 }
1650
1651 /**
1652  * Sets the UDP port used for audio streaming.
1653  *
1654  * @ingroup network_parameters
1655 **/
1656 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1657 {
1658         lc->rtp_conf.audio_rtp_min_port=lc->rtp_conf.audio_rtp_max_port=port;
1659 }
1660
1661 /**
1662  * Sets the UDP port range from which to randomly select the port used for audio streaming.
1663  * @ingroup media_parameters
1664  */
1665 void linphone_core_set_audio_port_range(LinphoneCore *lc, int min_port, int max_port)
1666 {
1667         lc->rtp_conf.audio_rtp_min_port=min_port;
1668         lc->rtp_conf.audio_rtp_max_port=max_port;
1669 }
1670
1671 /**
1672  * Sets the UDP port used for video streaming.
1673  *
1674  * @ingroup network_parameters
1675 **/
1676 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1677         lc->rtp_conf.video_rtp_min_port=lc->rtp_conf.video_rtp_max_port=port;
1678 }
1679
1680 /**
1681  * Sets the UDP port range from which to randomly select the port used for video streaming.
1682  * @ingroup media_parameters
1683  */
1684 void linphone_core_set_video_port_range(LinphoneCore *lc, int min_port, int max_port)
1685 {
1686         lc->rtp_conf.video_rtp_min_port=min_port;
1687         lc->rtp_conf.video_rtp_max_port=max_port;
1688 }
1689
1690 /**
1691  * Sets the no-rtp timeout value in seconds.
1692  *
1693  * @ingroup media_parameters
1694  * See linphone_core_get_nortp_timeout() for details.
1695 **/
1696 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1697         lc->rtp_conf.nortp_timeout=nortp_timeout;
1698 }
1699
1700 /**
1701  * Indicates whether SIP INFO is used for sending digits.
1702  *
1703  * @ingroup media_parameters
1704 **/
1705 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1706 {
1707         return lc->sip_conf.use_info;
1708 }
1709
1710 /**
1711  * Sets whether SIP INFO is to be used for sending digits.
1712  *
1713  * @ingroup media_parameters
1714 **/
1715 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1716 {
1717         lc->sip_conf.use_info=use_info;
1718 }
1719
1720 /**
1721  * Indicates whether RFC2833 is used for sending digits.
1722  *
1723  * @ingroup media_parameters
1724 **/
1725 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1726 {
1727         return lc->sip_conf.use_rfc2833;
1728 }
1729
1730 /**
1731  * Sets whether RFC2833 is to be used for sending digits.
1732  *
1733  * @ingroup media_parameters
1734 **/
1735 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1736 {
1737         lc->sip_conf.use_rfc2833=use_rfc2833;
1738 }
1739
1740 /**
1741  * Returns the UDP port used by SIP.
1742  *
1743  * Deprecated: use linphone_core_get_sip_transports() instead.
1744  * @ingroup network_parameters
1745 **/
1746 int linphone_core_get_sip_port(LinphoneCore *lc)
1747 {
1748         LCSipTransports *tr=&lc->sip_conf.transports;
1749         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1750 }
1751
1752 static char _ua_name[64]="Linphone";
1753 static char _ua_version[64]=LINPHONE_VERSION;
1754
1755 #ifdef HAVE_EXOSIP_GET_VERSION
1756 extern const char *eXosip_get_version();
1757 #endif
1758
1759 static void apply_user_agent(LinphoneCore *lc){
1760         char ua_string[256];
1761         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1762 #ifdef HAVE_EXOSIP_GET_VERSION
1763                  eXosip_get_version()
1764 #else
1765                  "unknown"
1766 #endif
1767         );
1768         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1769 }
1770
1771 /**
1772  * Sets the user agent string used in SIP messages.
1773  *
1774  * @ingroup misc
1775 **/
1776 void linphone_core_set_user_agent(LinphoneCore *lc, const char *name, const char *ver){
1777         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1778         strncpy(_ua_version,ver,sizeof(_ua_version));
1779         apply_user_agent(lc);
1780 }
1781
1782 const char *linphone_core_get_user_agent_name(void){
1783         return _ua_name;
1784 }
1785
1786 const char *linphone_core_get_user_agent_version(void){
1787         return _ua_version;
1788 }
1789
1790 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1791         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1792         ms_warning("%s",msg);
1793         if (lc->vtable.display_warning)
1794                 lc->vtable.display_warning(lc,msg);
1795         ms_free(msg);
1796 }
1797
1798 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1799         return
1800                 tr2->udp_port==tr1->udp_port &&
1801                 tr2->tcp_port==tr1->tcp_port &&
1802                 tr2->dtls_port==tr1->dtls_port &&
1803                 tr2->tls_port==tr1->tls_port;
1804 }
1805
1806 static int apply_transports(LinphoneCore *lc){
1807         Sal *sal=lc->sal;
1808         const char *anyaddr;
1809         LCSipTransports *tr=&lc->sip_conf.transports;
1810
1811         /*first of all invalidate all current registrations so that we can register again with new transports*/
1812         __linphone_core_invalidate_registers(lc);
1813
1814         if (lc->sip_conf.ipv6_enabled)
1815                 anyaddr="::0";
1816         else
1817                 anyaddr="0.0.0.0";
1818
1819         sal_unlisten_ports(sal);
1820         if (tr->udp_port>0){
1821                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1822                         transport_error(lc,"udp",tr->udp_port);
1823                         return -1;
1824                 }
1825         }
1826         if (tr->tcp_port>0){
1827                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1828                         transport_error(lc,"tcp",tr->tcp_port);
1829                 }
1830         }
1831         if (tr->tls_port>0){
1832                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1833                         transport_error(lc,"tls",tr->tls_port);
1834                 }
1835         }
1836         apply_user_agent(lc);
1837         return 0;
1838 }
1839
1840 /**
1841  * Sets the ports to be used for each of transport (UDP or TCP)
1842  *
1843  * A zero value port for a given transport means the transport
1844  * is not used.
1845  *
1846  * @ingroup network_parameters
1847 **/
1848 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1849
1850         if (transports_unchanged(tr,&lc->sip_conf.transports))
1851                 return 0;
1852         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1853
1854         if (linphone_core_ready(lc)){
1855                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1856                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1857                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1858         }
1859
1860         if (lc->sal==NULL) return 0;
1861         return apply_transports(lc);
1862 }
1863
1864 /**
1865  * Retrieves the ports used for each transport (udp, tcp).
1866  * A zero value port for a given transport means the transport
1867  * is not used.
1868  * @ingroup network_parameters
1869 **/
1870 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1871         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1872         return 0;
1873 }
1874
1875 /**
1876  * Sets the UDP port to be used by SIP.
1877  *
1878  * Deprecated: use linphone_core_set_sip_transports() instead.
1879  * @ingroup network_parameters
1880 **/
1881 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1882 {
1883         LCSipTransports tr;
1884         memset(&tr,0,sizeof(tr));
1885         tr.udp_port=port;
1886         linphone_core_set_sip_transports (lc,&tr);
1887 }
1888
1889 /**
1890  * Returns TRUE if IPv6 is enabled.
1891  *
1892  * @ingroup network_parameters
1893  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1894 **/
1895 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1896         return lc->sip_conf.ipv6_enabled;
1897 }
1898
1899 /**
1900  * Turns IPv6 support on or off.
1901  *
1902  * @ingroup network_parameters
1903  *
1904  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1905  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1906  * By default IPv6 support is off.
1907 **/
1908 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1909         if (lc->sip_conf.ipv6_enabled!=val){
1910                 lc->sip_conf.ipv6_enabled=val;
1911                 if (lc->sal){
1912                         /* we need to restart eXosip */
1913                         apply_transports(lc);
1914                 }
1915         }
1916 }
1917
1918
1919 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1920         char result[LINPHONE_IPADDR_SIZE];
1921         bool_t new_status=lc->network_last_status;
1922
1923         /* only do the network up checking every five seconds */
1924         if (lc->network_last_check==0 || (curtime-lc->network_last_check)>=5){
1925                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1926                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1927                         new_status=TRUE;
1928                 }else new_status=FALSE;
1929                 lc->network_last_check=curtime;
1930                 if (new_status!=lc->network_last_status) {
1931                         if (new_status){
1932                                 ms_message("New local ip address is %s",result);
1933                         }
1934                         set_network_reachable(lc,new_status, curtime);
1935                         lc->network_last_status=new_status;
1936                 }
1937         }
1938 }
1939
1940 static void proxy_update(LinphoneCore *lc){
1941         MSList *elem,*next;
1942         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1943         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1944                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1945                 next=elem->next;
1946                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1947                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1948                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1949                         linphone_proxy_config_destroy(cfg);
1950                 }
1951         }
1952 }
1953
1954 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1955         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1956         if (lf!=NULL){
1957                 lf->info=info;
1958                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1959                 if (lc->vtable.buddy_info_updated)
1960                         lc->vtable.buddy_info_updated(lc,lf);
1961         }else{
1962                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1963         }
1964 }
1965
1966 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1967         MSList *elem;
1968         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1969         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1970                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1971                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1972                         if (req->results!=NULL){
1973                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1974                                 ms_list_free(req->results);
1975                                 req->results=NULL;
1976                                 assign_buddy_info(lc,i);
1977                         }
1978                         sip_setup_context_buddy_lookup_free(ctx,req);
1979                         elem->data=NULL;
1980                 }
1981         }
1982         /*purge completed requests */
1983         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1984                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1985         }
1986 }
1987
1988 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1989         const MSList *elem;
1990         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1991         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1992                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1993                 if (lf->info==NULL){
1994                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1995                                 if (linphone_address_get_username(lf->uri)!=NULL){
1996                                         BuddyLookupRequest *req;
1997                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1998                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1999                                         buddy_lookup_request_set_key(req,tmp);
2000                                         buddy_lookup_request_set_max_results(req,1);
2001                                         sip_setup_context_buddy_lookup_submit(ctx,req);
2002                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
2003                                         ms_free(tmp);
2004                                 }
2005                         }
2006                 }
2007         }
2008 }
2009
2010 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
2011         LinphoneProxyConfig *cfg=NULL;
2012         linphone_core_get_default_proxy(lc,&cfg);
2013         if (cfg){
2014                 if (lc->bl_refresh){
2015                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
2016                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
2017                                 linphone_core_grab_buddy_infos(lc,cfg);
2018                                 lc->bl_refresh=FALSE;
2019                         }
2020                 }
2021                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
2022         }
2023 }
2024
2025 /**
2026  * Main loop function. It is crucial that your application call it periodically.
2027  *
2028  * @ingroup initializing
2029  * linphone_core_iterate() performs various backgrounds tasks:
2030  * - receiving of SIP messages
2031  * - handles timers and timeout
2032  * - performs registration to proxies
2033  * - authentication retries
2034  * The application MUST call this function periodically, in its main loop.
2035  * Be careful that this function must be called from the same thread as
2036  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
2037  * serialized with a mutex.
2038 **/
2039 void linphone_core_iterate(LinphoneCore *lc){
2040         MSList *calls;
2041         LinphoneCall *call;
2042         time_t curtime=time(NULL);
2043         int elapsed;
2044         bool_t one_second_elapsed=FALSE;
2045
2046         if (curtime-lc->prevtime>=1){
2047                 lc->prevtime=curtime;
2048                 one_second_elapsed=TRUE;
2049         }
2050
2051         if (lc->ecc!=NULL){
2052                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
2053                 if (ecs!=LinphoneEcCalibratorInProgress){
2054                         if (lc->ecc->cb)
2055                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
2056                         if (ecs==LinphoneEcCalibratorDone){
2057                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
2058                                 int margin=len/2;
2059
2060                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-margin,0));
2061                         } else if (ecs == LinphoneEcCalibratorFailed) {
2062                                 lp_config_set_int(lc->config, "sound", "ec_delay", -1);/*use default value from soundcard*/
2063                         } else if (ecs == LinphoneEcCalibratorDoneNoEcho) {
2064                                 linphone_core_enable_echo_cancellation(lc, FALSE);
2065                         }
2066                         ec_calibrator_destroy(lc->ecc);
2067                         lc->ecc=NULL;
2068                 }
2069         }
2070
2071         if (lc->preview_finished){
2072                 lc->preview_finished=0;
2073                 ring_stop(lc->ringstream);
2074                 lc->ringstream=NULL;
2075                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
2076         }
2077
2078         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
2079             && (curtime-lc->dmfs_playing_start_time)>5){
2080                 ring_stop(lc->ringstream);
2081                 lc->ringstream=NULL;
2082                 lc->dmfs_playing_start_time=0;
2083         }
2084
2085         sal_iterate(lc->sal);
2086         if (lc->msevq) ms_event_queue_pump(lc->msevq);
2087         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
2088
2089         proxy_update(lc);
2090
2091         //we have to iterate for each call
2092         calls= lc->calls;
2093         while(calls!= NULL){
2094                 call = (LinphoneCall *)calls->data;
2095                 elapsed = curtime-call->start_time;
2096                  /* get immediately a reference to next one in case the one
2097                  we are going to examine is destroy and removed during
2098                  linphone_core_start_invite() */
2099                 calls=calls->next;
2100                 linphone_call_background_tasks(call,one_second_elapsed);
2101                 if (call->state==LinphoneCallOutgoingInit && (elapsed>=lc->sip_conf.delayed_timeout)){
2102                         /*start the call even if the OPTIONS reply did not arrive*/
2103                         if (call->ice_session != NULL) {
2104                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
2105                                                 ,linphone_core_get_stun_server(lc));
2106                                 linphone_call_delete_ice_session(call);
2107                                 linphone_call_stop_media_streams_for_ice_gathering(call);
2108                         }
2109 #ifdef BUILD_UPNP
2110                         if (call->upnp_session != NULL) {
2111                                 ms_warning("uPnP mapping has not finished yet, proceeded with the call without uPnP anyway.");
2112                                 linphone_call_delete_upnp_session(call);
2113                         }
2114 #endif //BUILD_UPNP
2115                         linphone_core_start_invite(lc,call);
2116                 }
2117                 if (call->state==LinphoneCallIncomingReceived){
2118                         ms_message("incoming call ringing for %i seconds",elapsed);
2119                         if (elapsed>lc->sip_conf.inc_timeout){
2120                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
2121                                 call->log->status=LinphoneCallMissed;
2122                                 call->reason=LinphoneReasonNotAnswered;
2123                                 linphone_core_terminate_call(lc,call);
2124                         }
2125                 }
2126                 if (lc->sip_conf.in_call_timeout > 0 && elapsed>lc->sip_conf.in_call_timeout) {
2127                         ms_message("in call timeout (%i)",lc->sip_conf.in_call_timeout);
2128                         linphone_core_terminate_call(lc,call);
2129                 }
2130         }
2131
2132         if (linphone_core_video_preview_enabled(lc)){
2133                 if (lc->previewstream==NULL && lc->calls==NULL)
2134                         toggle_video_preview(lc,TRUE);
2135 #ifdef VIDEO_ENABLED
2136                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
2137 #endif
2138         }else{
2139                 if (lc->previewstream!=NULL)
2140                         toggle_video_preview(lc,FALSE);
2141         }
2142
2143         linphone_core_run_hooks(lc);
2144         linphone_core_do_plugin_tasks(lc);
2145
2146         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
2147             (curtime-lc->netup_time)>3){
2148                 linphone_core_send_initial_subscribes(lc);
2149                 lc->initial_subscribes_sent=TRUE;
2150         }
2151
2152         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
2153                 lp_config_sync(lc->config);
2154         }
2155 }
2156
2157 /**
2158  * Interpret a call destination as supplied by the user, and returns a fully qualified
2159  * LinphoneAddress.
2160  *
2161  * @ingroup call_control
2162  *
2163  * A sip address should look like DisplayName <sip:username@domain:port> .
2164  * Basically this function performs the following tasks
2165  * - if a phone number is entered, prepend country prefix of the default proxy
2166  *   configuration, eventually escape the '+' by 00.
2167  * - if no domain part is supplied, append the domain name of the default proxy
2168  * - if no sip: is present, prepend it
2169  *
2170  * The result is a syntaxically correct SIP address.
2171 **/
2172
2173 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
2174         enum_lookup_res_t *enumres=NULL;
2175         char *enum_domain=NULL;
2176         LinphoneProxyConfig *proxy=lc->default_proxy;;
2177         char *tmpurl;
2178         LinphoneAddress *uri;
2179
2180         if (is_enum(url,&enum_domain)){
2181                 if (lc->vtable.display_status!=NULL)
2182                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
2183                 if (enum_lookup(enum_domain,&enumres)<0){
2184                         if (lc->vtable.display_status!=NULL)
2185                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
2186                         ms_free(enum_domain);
2187                         return NULL;
2188                 }
2189                 ms_free(enum_domain);
2190                 tmpurl=enumres->sip_address[0];
2191                 uri=linphone_address_new(tmpurl);
2192                 enum_lookup_res_free(enumres);
2193                 return uri;
2194         }
2195         /* check if we have a "sip:" */
2196         if (strstr(url,"sip:")==NULL){
2197                 /* this doesn't look like a true sip uri */
2198                 if (strchr(url,'@')!=NULL){
2199                         /* seems like sip: is missing !*/
2200                         tmpurl=ms_strdup_printf("sip:%s",url);
2201                         uri=linphone_address_new(tmpurl);
2202                         ms_free(tmpurl);
2203                         if (uri){
2204                                 return uri;
2205                         }
2206                 }
2207
2208                 if (proxy!=NULL){
2209                         /* append the proxy domain suffix */
2210                         const char *identity=linphone_proxy_config_get_identity(proxy);
2211                         char normalized_username[128];
2212                         uri=linphone_address_new(identity);
2213                         if (uri==NULL){
2214                                 return NULL;
2215                         }
2216                         linphone_address_set_display_name(uri,NULL);
2217                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2218                                                                 sizeof(normalized_username));
2219                         linphone_address_set_username(uri,normalized_username);
2220                         return uri;
2221                 }else return NULL;
2222         }
2223         uri=linphone_address_new(url);
2224         if (uri!=NULL){
2225                 return uri;
2226         }
2227         /* else we could not do anything with url given by user, so display an error */
2228         if (lc->vtable.display_warning!=NULL){
2229                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2230         }
2231         return NULL;
2232 }
2233
2234 /**
2235  * Returns the default identity SIP address.
2236  *
2237  * @ingroup proxies
2238  * This is an helper function:
2239  *
2240  * If no default proxy is set, this will return the primary contact (
2241  * see linphone_core_get_primary_contact() ). If a default proxy is set
2242  * it returns the registered identity on the proxy.
2243 **/
2244 const char * linphone_core_get_identity(LinphoneCore *lc){
2245         LinphoneProxyConfig *proxy=NULL;
2246         const char *from;
2247         linphone_core_get_default_proxy(lc,&proxy);
2248         if (proxy!=NULL) {
2249                 from=linphone_proxy_config_get_identity(proxy);
2250         }else from=linphone_core_get_primary_contact(lc);
2251         return from;
2252 }
2253
2254 const char * linphone_core_get_route(LinphoneCore *lc){
2255         LinphoneProxyConfig *proxy=NULL;
2256         const char *route=NULL;
2257         linphone_core_get_default_proxy(lc,&proxy);
2258         if (proxy!=NULL) {
2259                 route=linphone_proxy_config_get_route(proxy);
2260         }
2261         return route;
2262 }
2263
2264 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2265         if (call->refer_pending){
2266                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2267                 LinphoneCall *newcall;
2268                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2269                 cp->referer=call;
2270                 ms_message("Starting new call to refered address %s",call->refer_to);
2271                 call->refer_pending=FALSE;
2272                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2273                 linphone_call_params_destroy(cp);
2274                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2275         }
2276 }
2277
2278 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2279         if (referer->op!=NULL){
2280                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2281         }
2282 }
2283
2284 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2285         const MSList *elem;
2286         LinphoneProxyConfig *found_cfg=NULL;
2287         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2288
2289         /*always prefer the default proxy if it is matching the destination uri*/
2290         if (default_cfg){
2291                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2292                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2293                         return default_cfg;
2294         }
2295
2296         /*otherwise iterate through the other proxy config and return the first matching*/
2297         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2298                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2299                 const char *domain=linphone_proxy_config_get_domain(cfg);
2300                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2301                         found_cfg=cfg;
2302                         break;
2303                 }
2304         }
2305         return found_cfg;
2306 }
2307
2308 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2309         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2310         if (cfg==NULL)
2311                 linphone_core_get_default_proxy (lc,&cfg);
2312         if (cfg!=NULL){
2313                 if (route) *route=linphone_proxy_config_get_route(cfg);
2314                 return linphone_proxy_config_get_identity (cfg);
2315         }
2316         return linphone_core_get_primary_contact (lc);
2317 }
2318
2319 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2320         LinphoneAddress *ctt;
2321         const char *localip=call->localip;
2322
2323         /* first use user's supplied ip address if asked*/
2324         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2325                 ctt=linphone_core_get_primary_contact_parsed(lc);
2326                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2327                         linphone_core_get_nat_address_resolved(lc));
2328         }
2329
2330         /* if already choosed, don't change it */
2331         if (call->op && sal_op_get_contact(call->op)!=NULL){
2332                 return NULL;
2333         }
2334         /* if the ping OPTIONS request succeeded use the contact guessed from the
2335          received, rport*/
2336         if (call->ping_op){
2337                 const char *guessed=sal_op_get_contact(call->ping_op);
2338                 if (guessed){
2339                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2340                         return ms_strdup(guessed);
2341                 }
2342         }
2343
2344         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2345         if (dest_proxy && dest_proxy->op){
2346                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2347                 if (fixed_contact) {
2348                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2349                         return ms_strdup(fixed_contact);
2350                 }
2351         }
2352
2353         ctt=linphone_core_get_primary_contact_parsed(lc);
2354
2355         if (ctt!=NULL){
2356                 char *ret;
2357                 /*otherwise use supllied localip*/
2358                 linphone_address_set_domain(ctt,localip);
2359                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2360                 ret=linphone_address_as_string_uri_only(ctt);
2361                 linphone_address_destroy(ctt);
2362                 ms_message("Contact has been fixed using local ip to %s",ret);
2363                 return ret;
2364         }
2365         return NULL;
2366 }
2367
2368 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2369         bool_t ice_ready = FALSE;
2370         bool_t upnp_ready = FALSE;
2371         bool_t ping_ready = FALSE;
2372
2373         if (call->ice_session != NULL) {
2374                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2375         } else {
2376                 ice_ready = TRUE;
2377         }
2378 #ifdef BUILD_UPNP
2379         if (call->upnp_session != NULL) {
2380                 if (linphone_upnp_session_get_state(call->upnp_session) == LinphoneUpnpStateOk) upnp_ready = TRUE;
2381         } else {
2382                 upnp_ready = TRUE;
2383         }
2384 #else
2385         upnp_ready=TRUE;
2386 #endif //BUILD_UPNP
2387         if (call->ping_op != NULL) {
2388                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2389         } else {
2390                 ping_ready = TRUE;
2391         }
2392
2393         if ((ice_ready == TRUE) && (upnp_ready == TRUE) && (ping_ready == TRUE)) {
2394                 return linphone_core_start_invite(lc, call);
2395         }
2396         return 0;
2397 }
2398
2399 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2400         int err;
2401         char *contact;
2402         char *real_url,*barmsg;
2403         char *from;
2404         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2405
2406         /*try to be best-effort in giving real local or routable contact address */
2407         contact=get_fixed_contact(lc,call,dest_proxy);
2408         if (contact){
2409                 sal_op_set_contact(call->op, contact);
2410                 ms_free(contact);
2411         }
2412         linphone_core_stop_dtmf_stream(lc);
2413         linphone_call_init_media_streams(call);
2414         if (lc->ringstream==NULL)
2415                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2416         linphone_call_make_local_media_description(lc,call);
2417         if (!lc->sip_conf.sdp_200_ack){
2418                 call->media_pending=TRUE;
2419                 sal_call_set_local_media_description(call->op,call->localdesc);
2420         }
2421         real_url=linphone_address_as_string(call->log->to);
2422         from=linphone_address_as_string(call->log->from);
2423         err=sal_call(call->op,from,real_url);
2424         call->log->call_id=ms_strdup(sal_op_get_call_id(call->op)); /*must be known at that time*/
2425
2426         if (lc->sip_conf.sdp_200_ack){
2427                 call->media_pending=TRUE;
2428                 sal_call_set_local_media_description(call->op,call->localdesc);
2429         }
2430         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2431         if (lc->vtable.display_status!=NULL)
2432                 lc->vtable.display_status(lc,barmsg);
2433         ms_free(barmsg);
2434
2435         if (err<0){
2436                 if (lc->vtable.display_status!=NULL)
2437                         lc->vtable.display_status(lc,_("Could not call"));
2438                 linphone_call_stop_media_streams(call);
2439                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2440         }else {
2441                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2442         }
2443         ms_free(real_url);
2444         ms_free(from);
2445         return err;
2446 }
2447
2448 /**
2449  * Initiates an outgoing call
2450  *
2451  * @ingroup call_control
2452  * @param lc the LinphoneCore object
2453  * @param url the destination of the call (sip address, or phone number).
2454  *
2455  * The application doesn't own a reference to the returned LinphoneCall object.
2456  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2457  *
2458  * @return a LinphoneCall object or NULL in case of failure
2459 **/
2460 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2461         LinphoneCall *call;
2462         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2463         p->has_video &= !!lc->video_policy.automatically_initiate;
2464         call=linphone_core_invite_with_params(lc,url,p);
2465         linphone_call_params_destroy(p);
2466         return call;
2467 }
2468
2469
2470 /**
2471  * Initiates an outgoing call according to supplied call parameters
2472  *
2473  * @ingroup call_control
2474  * @param lc the LinphoneCore object
2475  * @param url the destination of the call (sip address, or phone number).
2476  * @param p call parameters
2477  *
2478  * The application doesn't own a reference to the returned LinphoneCall object.
2479  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2480  *
2481  * @return a LinphoneCall object or NULL in case of failure
2482 **/
2483 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2484         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2485         if (addr){
2486                 LinphoneCall *call;
2487                 call=linphone_core_invite_address_with_params(lc,addr,p);
2488                 linphone_address_destroy(addr);
2489                 return call;
2490         }
2491         return NULL;
2492 }
2493
2494 /**
2495  * Initiates an outgoing call given a destination LinphoneAddress
2496  *
2497  * @ingroup call_control
2498  * @param lc the LinphoneCore object
2499  * @param addr the destination of the call (sip address).
2500  *
2501  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2502  * created by linphone_core_interpret_url().
2503  * The application doesn't own a reference to the returned LinphoneCall object.
2504  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2505  *
2506  * @return a LinphoneCall object or NULL in case of failure
2507 **/
2508 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2509         LinphoneCall *call;
2510         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2511         p->has_video &= !!lc->video_policy.automatically_initiate;
2512         call=linphone_core_invite_address_with_params (lc,addr,p);
2513         linphone_call_params_destroy(p);
2514         return call;
2515 }
2516
2517
2518 /**
2519  * Initiates an outgoing call given a destination LinphoneAddress
2520  *
2521  * @ingroup call_control
2522  * @param lc the LinphoneCore object
2523  * @param addr the destination of the call (sip address).
2524         @param params call parameters
2525  *
2526  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2527  * created by linphone_core_interpret_url().
2528  * The application doesn't own a reference to the returned LinphoneCall object.
2529  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2530  *
2531  * @return a LinphoneCall object or NULL in case of failure
2532 **/
2533 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2534 {
2535         const char *route=NULL;
2536         const char *from=NULL;
2537         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2538         LinphoneAddress *parsed_url2=NULL;
2539         char *real_url=NULL;
2540         LinphoneCall *call;
2541         bool_t defer = FALSE;
2542
2543         linphone_core_preempt_sound_resources(lc);
2544
2545         if(!linphone_core_can_we_add_call(lc)){
2546                 if (lc->vtable.display_warning)
2547                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2548                 return NULL;
2549         }
2550         linphone_core_get_default_proxy(lc,&proxy);
2551         route=linphone_core_get_route(lc);
2552
2553         real_url=linphone_address_as_string(addr);
2554         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2555
2556         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2557                 ms_message("Overriding default proxy setting for this call:");
2558                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2559         }
2560
2561         if (dest_proxy!=NULL)
2562                 from=linphone_proxy_config_get_identity(dest_proxy);
2563         else if (proxy!=NULL)
2564                 from=linphone_proxy_config_get_identity(proxy);
2565
2566         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2567         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2568
2569         parsed_url2=linphone_address_new(from);
2570
2571         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2572         call->dest_proxy=dest_proxy;
2573         sal_op_set_route(call->op,route);
2574
2575         if(linphone_core_add_call(lc,call)!= 0)
2576         {
2577                 ms_warning("we had a problem in adding the call into the invite ... weird");
2578                 linphone_call_unref(call);
2579                 return NULL;
2580         }
2581         /* this call becomes now the current one*/
2582         lc->current_call=call;
2583         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2584         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2585                 /* Defer the start of the call after the ICE gathering process. */
2586                 linphone_call_init_media_streams(call);
2587                 linphone_call_start_media_streams_for_ice_gathering(call);
2588                 call->start_time=time(NULL);
2589                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2590                         /* Ice candidates gathering failed, proceed with the call anyway. */
2591                         linphone_call_delete_ice_session(call);
2592                         linphone_call_stop_media_streams_for_ice_gathering(call);
2593                 } else {
2594                         defer = TRUE;
2595                 }
2596         }
2597         else if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseUpnp) {
2598 #ifdef BUILD_UPNP
2599                 linphone_call_init_media_streams(call);
2600                 call->start_time=time(NULL);
2601                 if (linphone_core_update_upnp(lc,call)<0) {
2602                         /* uPnP port mappings failed, proceed with the call anyway. */
2603                         linphone_call_delete_upnp_session(call);
2604                 } else {
2605                         defer = TRUE;
2606                 }
2607 #endif //BUILD_UPNP
2608         }
2609
2610         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2611 #ifdef BUILD_UPNP
2612                 if (lc->upnp != NULL && linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp &&
2613                         linphone_upnp_context_get_state(lc->upnp) == LinphoneUpnpStateOk) {
2614 #else //BUILD_UPNP
2615                 {
2616 #endif //BUILD_UPNP
2617                         /*defer the start of the call after the OPTIONS ping*/
2618                         call->ping_replied=FALSE;
2619                         call->ping_op=sal_op_new(lc->sal);
2620                         sal_ping(call->ping_op,from,real_url);
2621                         sal_op_set_user_pointer(call->ping_op,call);
2622                         call->start_time=time(NULL);
2623                         defer = TRUE;
2624                 }
2625         }
2626
2627         if (defer==FALSE) linphone_core_start_invite(lc,call);
2628
2629         if (real_url!=NULL) ms_free(real_url);
2630         return call;
2631 }
2632
2633 /**
2634  * Performs a simple call transfer to the specified destination.
2635  *
2636  * @ingroup call_control
2637  * The remote endpoint is expected to issue a new call to the specified destination.
2638  * The current call remains active and thus can be later paused or terminated.
2639 **/
2640 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2641 {
2642         char *real_url=NULL;
2643         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2644
2645         if (!real_parsed_url){
2646                 /* bad url */
2647                 return -1;
2648         }
2649         if (call==NULL){
2650                 ms_warning("No established call to refer.");
2651                 return -1;
2652         }
2653         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2654         real_url=linphone_address_as_string (real_parsed_url);
2655         sal_call_refer(call->op,real_url);
2656         ms_free(real_url);
2657         linphone_address_destroy(real_parsed_url);
2658         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2659         return 0;
2660 }
2661
2662 /**
2663  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2664  * @param lc linphone core object
2665  * @param call a running call you want to transfer
2666  * @param dest a running call whose remote person will receive the transfer
2667  *
2668  * @ingroup call_control
2669  *
2670  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2671  * The destination call is a call previously established to introduce the transfered person.
2672  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2673  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2674  * close the call with us (the 'dest' call).
2675 **/
2676 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2677         int result = sal_call_refer_with_replaces (call->op,dest->op);
2678         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2679         return result;
2680 }
2681
2682 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2683         LinphoneCall *call = linphone_core_get_current_call(lc);
2684         if(call != NULL)
2685         {
2686                 if(call->dir==LinphoneCallIncoming
2687                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2688                         return TRUE;
2689         }
2690         return FALSE;
2691 }
2692
2693 bool_t linphone_core_incompatible_security(LinphoneCore *lc, SalMediaDescription *md){
2694         if (linphone_core_is_media_encryption_mandatory(lc) && linphone_core_get_media_encryption(lc)==LinphoneMediaEncryptionSRTP){
2695                 int i;
2696                 for(i=0;i<md->n_active_streams;i++){
2697                         SalStreamDescription *sd=&md->streams[i];
2698                         if (sd->proto!=SalProtoRtpSavp){
2699                                 return TRUE;
2700                         }
2701                 }
2702         }
2703         return FALSE;
2704 }
2705
2706 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2707         char *barmesg;
2708         char *tmp;
2709         LinphoneAddress *from_parsed;
2710         SalMediaDescription *md;
2711         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2712         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2713
2714         linphone_call_make_local_media_description(lc,call);
2715         sal_call_set_local_media_description(call->op,call->localdesc);
2716         md=sal_call_get_final_media_description(call->op);
2717         if (md){
2718                 if (sal_media_description_empty(md) || linphone_core_incompatible_security(lc,md)){
2719                         sal_call_decline(call->op,SalReasonMedia,NULL);
2720                         linphone_call_unref(call);
2721                         return;
2722                 }
2723         }
2724
2725         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2726         linphone_address_clean(from_parsed);
2727         tmp=linphone_address_as_string(from_parsed);
2728         linphone_address_destroy(from_parsed);
2729         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2730             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2731         if (lc->vtable.show) lc->vtable.show(lc);
2732         if (lc->vtable.display_status)
2733             lc->vtable.display_status(lc,barmesg);
2734
2735         /* play the ring if this is the only call*/
2736         if (ms_list_size(lc->calls)==1){
2737                 lc->current_call=call;
2738                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2739                         ring_stop(lc->ringstream);
2740                         lc->ringstream=NULL;
2741                         lc->dmfs_playing_start_time=0;
2742                 }
2743                 if (lc->sound_conf.ring_sndcard!=NULL){
2744                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2745                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2746                                 ms_message("Starting local ring...");
2747                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2748                         }
2749                         else
2750                         {
2751                                 ms_message("the local ring is already started");
2752                         }
2753                 }
2754         }else{
2755                 /* else play a tone within the context of the current call */
2756                 call->ringing_beep=TRUE;
2757                 linphone_core_play_tone(lc);
2758         }
2759
2760         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2761
2762         if (call->state==LinphoneCallIncomingReceived){
2763                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2764
2765                 if (propose_early_media || ringback_tone!=NULL){
2766                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2767                         md=sal_call_get_final_media_description(call->op);
2768                         linphone_core_update_streams(lc,call,md);
2769                 }
2770                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2771                         linphone_core_accept_call(lc,call);
2772                 }
2773         }
2774         linphone_call_unref(call);
2775
2776         ms_free(barmesg);
2777         ms_free(tmp);
2778 }
2779
2780 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2781         const char *subject;
2782         call->camera_active=call->params.has_video;
2783         if (call->ice_session != NULL) {
2784                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2785         }
2786 #ifdef BUILD_UPNP
2787         if(call->upnp_session != NULL) {
2788                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2789         }
2790 #endif //BUILD_UPNP
2791         if (call->params.in_conference){
2792                 subject="Conference";
2793         }else{
2794                 subject="Media change";
2795         }
2796         if (lc->vtable.display_status)
2797                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2798         sal_call_set_local_media_description (call->op,call->localdesc);
2799         return sal_call_update(call->op,subject);
2800 }
2801
2802 /**
2803  * @ingroup call_control
2804  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2805  *
2806  * In this version this is limited to the following use cases:
2807  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2808  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2809  *
2810  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2811  * @param lc the core
2812  * @param call the call to be updated
2813  * @param params the new call parameters to use. (may be NULL)
2814  * @return 0 if successful, -1 otherwise.
2815 **/
2816 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2817         int err=0;
2818         if (params!=NULL){
2819                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2820 #ifdef VIDEO_ENABLED
2821                 bool_t has_video = call->params.has_video;
2822
2823                 // Video removing
2824                 if((call->videostream != NULL) && !params->has_video) {
2825                         if (call->ice_session != NULL) {
2826                                 ice_session_remove_check_list(call->ice_session, call->videostream->ms.ice_check_list);
2827                                 call->videostream->ms.ice_check_list = NULL;
2828                         }
2829 #ifdef BUILD_UPNP
2830                         if(call->upnp_session != NULL) {
2831                                 if (linphone_core_update_upnp(lc, call)<0) {
2832                                         /* uPnP port mappings failed, proceed with the call anyway. */
2833                                         linphone_call_delete_upnp_session(call);
2834                                 }
2835                         }
2836 #endif //BUILD_UPNP
2837                 }
2838
2839                 _linphone_call_params_copy(&call->params,params);
2840                 linphone_call_make_local_media_description(lc, call);
2841
2842                 // Video adding
2843                 if (!has_video && call->params.has_video) {
2844                         if (call->ice_session != NULL) {
2845                                 /* Defer call update until the ICE candidates gathering process has finished. */
2846                                 ms_message("Defer call update to gather ICE candidates");
2847                                 linphone_call_init_video_stream(call);
2848                                 video_stream_prepare_video(call->videostream);
2849                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2850                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2851                                         linphone_call_delete_ice_session(call);
2852                                 } else {
2853                                         return err;
2854                                 }
2855                         }
2856 #ifdef BUILD_UPNP
2857                         if(call->upnp_session != NULL) {
2858                                 ms_message("Defer call update to add uPnP port mappings");
2859                                 linphone_call_init_video_stream(call);
2860                                 video_stream_prepare_video(call->videostream);
2861                                 if (linphone_core_update_upnp(lc, call)<0) {
2862                                         /* uPnP port mappings failed, proceed with the call anyway. */
2863                                         linphone_call_delete_upnp_session(call);
2864                                 } else {
2865                                         return err;
2866                                 }
2867                         }
2868 #endif //BUILD_UPNP
2869                 }
2870 #endif
2871                 err = linphone_core_start_update_call(lc, call);
2872         }else{
2873 #ifdef VIDEO_ENABLED
2874                 if (call->videostream!=NULL){
2875                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2876                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2877                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2878                         }else video_stream_update_video_params(call->videostream);
2879                 }
2880 #endif
2881         }
2882
2883         return err;
2884 }
2885
2886 /**
2887  * @ingroup call_control
2888  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2889  *
2890  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2891  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2892  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2893  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2894  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2895  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2896  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2897  *
2898  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2899 **/
2900 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2901         if (call->state==LinphoneCallUpdatedByRemote){
2902                 call->defer_update=TRUE;
2903                 return 0;
2904         }
2905         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2906         return -1;
2907 }
2908
2909 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2910         SalMediaDescription *md;
2911         if (call->ice_session != NULL) {
2912                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2913                         /* Defer the sending of the answer until there are no losing pairs left. */
2914                         return 0;
2915                 }
2916                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2917         }
2918 #ifdef BUILD_UPNP
2919         if(call->upnp_session != NULL) {
2920                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2921         }
2922 #endif //BUILD_UPNP
2923         linphone_call_update_remote_session_id_and_ver(call);
2924         sal_call_set_local_media_description(call->op,call->localdesc);
2925         sal_call_accept(call->op);
2926         md=sal_call_get_final_media_description(call->op);
2927         if (md && !sal_media_description_empty(md))
2928                 linphone_core_update_streams (lc,call,md);
2929         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2930         return 0;
2931 }
2932
2933 /**
2934  * @ingroup call_control
2935  * Accept call modifications initiated by other end.
2936  *
2937  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2938  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2939  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2940  * requested by the other party, such as whether a video stream is requested.
2941  *
2942  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2943  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2944  * If params is not NULL, then the update will be accepted according to the parameters passed.
2945  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2946  * (see linphone_call_params_enable_video()).
2947  * @param lc the linphone core object.
2948  * @param call the LinphoneCall object
2949  * @param params a LinphoneCallParams object describing the call parameters to accept.
2950  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2951 **/
2952 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2953         SalMediaDescription *remote_desc;
2954         bool_t keep_sdp_version;
2955 #ifdef VIDEO_ENABLED
2956         bool_t old_has_video = call->params.has_video;
2957 #endif
2958         if (call->state!=LinphoneCallUpdatedByRemote){
2959                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2960                          linphone_call_state_to_string(call->state));
2961                 return -1;
2962         }
2963         remote_desc = sal_call_get_remote_media_description(call->op);
2964         keep_sdp_version = lp_config_get_int(lc->config, "sip", "keep_sdp_version", 0);
2965         if (keep_sdp_version &&(remote_desc->session_id == call->remote_session_id) && (remote_desc->session_ver == call->remote_session_ver)) {
2966                 /* Remote has sent an INVITE with the same SDP as before, so send a 200 OK with the same SDP as before. */
2967                 ms_warning("SDP version has not changed, send same SDP as before.");
2968                 sal_call_accept(call->op);
2969                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2970                 return 0;
2971         }
2972         if (params==NULL){
2973                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2974         }else
2975                 call->params=*params;
2976
2977         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2978                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2979                 call->params.has_video=FALSE;
2980         }
2981         if (call->current_params.in_conference) {
2982                 ms_warning("Video isn't supported in conference");
2983                 call->params.has_video = FALSE;
2984         }
2985         call->params.has_video &= linphone_core_media_description_contains_video_stream(remote_desc);
2986         call->camera_active=call->params.has_video;
2987         linphone_call_make_local_media_description(lc,call);
2988         if (call->ice_session != NULL) {
2989                 linphone_core_update_ice_from_remote_media_description(call, remote_desc);
2990 #ifdef VIDEO_ENABLED
2991                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2992                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2993                                 linphone_call_init_video_stream(call);
2994                                 video_stream_prepare_video(call->videostream);
2995                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2996                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2997                                         linphone_call_delete_ice_session(call);
2998                                 } else return 0;
2999                         }
3000                 }
3001 #endif //VIDEO_ENABLED
3002         }
3003
3004 #ifdef BUILD_UPNP
3005         if(call->upnp_session != NULL) {
3006                 linphone_core_update_upnp_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
3007 #ifdef VIDEO_ENABLED
3008                 if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
3009                         linphone_call_init_video_stream(call);
3010                         video_stream_prepare_video(call->videostream);
3011                         if (linphone_core_update_upnp(lc, call)<0) {
3012                                 /* uPnP update failed, proceed with the call anyway. */
3013                                 linphone_call_delete_upnp_session(call);
3014                         } else return 0;
3015                 }
3016 #endif //VIDEO_ENABLED
3017         }
3018 #endif //BUILD_UPNP
3019
3020         linphone_core_start_accept_call_update(lc, call);
3021         return 0;
3022 }
3023
3024 /**
3025  * Accept an incoming call.
3026  *
3027  * @ingroup call_control
3028  * Basically the application is notified of incoming calls within the
3029  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3030  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3031  * The application can later accept the call using this method.
3032  * @param lc the LinphoneCore object
3033  * @param call the LinphoneCall object representing the call to be answered.
3034  *
3035 **/
3036 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
3037         return linphone_core_accept_call_with_params(lc,call,NULL);
3038 }
3039
3040 /**
3041  * Accept an incoming call, with parameters.
3042  *
3043  * @ingroup call_control
3044  * Basically the application is notified of incoming calls within the
3045  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3046  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3047  * The application can later accept the call using
3048  * this method.
3049  * @param lc the LinphoneCore object
3050  * @param call the LinphoneCall object representing the call to be answered.
3051  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
3052  *
3053 **/
3054 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
3055 {
3056         LinphoneProxyConfig *cfg=NULL;
3057         const char *contact=NULL;
3058         SalOp *replaced;
3059         SalMediaDescription *new_md;
3060         bool_t was_ringing=FALSE;
3061
3062         if (call==NULL){
3063                 //if just one call is present answer the only one ...
3064                 if(linphone_core_get_calls_nb (lc) != 1)
3065                         return -1;
3066                 else
3067                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
3068         }
3069
3070         if (call->state==LinphoneCallConnected){
3071                 /*call already accepted*/
3072                 return -1;
3073         }
3074
3075         /* check if this call is supposed to replace an already running one*/
3076         replaced=sal_call_get_replaces(call->op);
3077         if (replaced){
3078                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
3079                 if (rc){
3080                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
3081                                    call,rc);
3082                         linphone_core_terminate_call(lc,rc);
3083                 }
3084         }
3085
3086         if (lc->current_call!=call){
3087                 linphone_core_preempt_sound_resources(lc);
3088         }
3089
3090         /*stop ringing */
3091         if (lc->ringstream!=NULL) {
3092                 ms_message("stop ringing");
3093                 ring_stop(lc->ringstream);
3094                 ms_message("ring stopped");
3095                 lc->ringstream=NULL;
3096                 was_ringing=TRUE;
3097         }
3098         if (call->ringing_beep){
3099                 linphone_core_stop_dtmf(lc);
3100                 call->ringing_beep=FALSE;
3101         }
3102
3103         linphone_core_get_default_proxy(lc,&cfg);
3104         call->dest_proxy=cfg;
3105         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
3106
3107         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
3108                 ms_message("Overriding default proxy setting for this call:");
3109                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
3110         }
3111         /*try to be best-effort in giving real local or routable contact address*/
3112         contact=get_fixed_contact(lc,call,call->dest_proxy);
3113         if (contact)
3114                 sal_op_set_contact(call->op,contact);
3115
3116         if (params){
3117                 const SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
3118                 _linphone_call_params_copy(&call->params,params);
3119                 // There might not be a md if the INVITE was lacking an SDP
3120                 // In this case we use the parameters as is.
3121                 if (md) call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
3122                 call->camera_active=call->params.has_video;
3123                 linphone_call_make_local_media_description(lc,call);
3124                 sal_call_set_local_media_description(call->op,call->localdesc);
3125         }
3126
3127         if (call->audiostream==NULL)
3128                 linphone_call_init_media_streams(call);
3129         if (!was_ringing && call->audiostream->ms.ticker==NULL){
3130                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
3131         }
3132
3133         linphone_call_update_remote_session_id_and_ver(call);
3134         sal_call_accept(call->op);
3135         if (lc->vtable.display_status!=NULL)
3136                 lc->vtable.display_status(lc,_("Connected."));
3137         lc->current_call=call;
3138         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
3139         new_md=sal_call_get_final_media_description(call->op);
3140         linphone_core_update_streams(lc, call, new_md);
3141         if (new_md){
3142                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
3143         }else call->media_pending=TRUE;
3144
3145         ms_message("call answered.");
3146         return 0;
3147 }
3148
3149 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
3150         sal_call_terminate(call->op);
3151
3152         /*stop ringing*/
3153         if (lc->ringstream!=NULL) {
3154                 ring_stop(lc->ringstream);
3155                 lc->ringstream=NULL;
3156         }
3157         linphone_call_stop_media_streams(call);
3158
3159 #ifdef BUILD_UPNP
3160         linphone_call_delete_upnp_session(call);
3161 #endif //BUILD_UPNP
3162
3163         if (lc->vtable.display_status!=NULL)
3164                 lc->vtable.display_status(lc,_("Call aborted") );
3165         linphone_call_set_state(call,LinphoneCallError,error);
3166         return 0;
3167 }
3168
3169 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
3170         if (call->state==LinphoneCallIncomingReceived){
3171                 if (call->reason!=LinphoneReasonNotAnswered)
3172                         call->reason=LinphoneReasonDeclined;
3173         }
3174         /*stop ringing*/
3175         if (lc->ringstream!=NULL) {
3176                 ring_stop(lc->ringstream);
3177                 lc->ringstream=NULL;
3178         }
3179
3180         linphone_call_stop_media_streams(call);
3181
3182 #ifdef BUILD_UPNP
3183         linphone_call_delete_upnp_session(call);
3184 #endif //BUILD_UPNP
3185
3186         if (lc->vtable.display_status!=NULL)
3187                 lc->vtable.display_status(lc,_("Call ended") );
3188         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
3189 }
3190
3191 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
3192         if (call->state==LinphoneCallIncomingReceived){
3193                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
3194                 call->reason=LinphoneReasonDeclined;
3195                 terminate_call(lc,call);
3196         }else{
3197                 ms_error("Bad state for call redirection.");
3198                 return -1;
3199     }
3200         return 0;
3201 }
3202
3203
3204 /**
3205  * Terminates a call.
3206  *
3207  * @ingroup call_control
3208  * @param lc the LinphoneCore
3209  * @param the_call the LinphoneCall object representing the call to be terminated.
3210 **/
3211 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
3212 {
3213         LinphoneCall *call;
3214         if (the_call == NULL){
3215                 call = linphone_core_get_current_call(lc);
3216                 if (ms_list_size(lc->calls)==1){
3217                         call=(LinphoneCall*)lc->calls->data;
3218                 }else{
3219                         ms_warning("No unique call to terminate !");
3220                         return -1;
3221                 }
3222         }
3223         else
3224         {
3225                 call = the_call;
3226         }
3227         sal_call_terminate(call->op);
3228         terminate_call(lc,call);
3229         return 0;
3230 }
3231
3232 /**
3233  * Decline a pending incoming call, with a reason.
3234  *
3235  * @ingroup call_control
3236  *
3237  * @param lc the linphone core
3238  * @param call the LinphoneCall, must be in the IncomingReceived state.
3239  * @param reason the reason for rejecting the call: LinphoneReasonDeclined or LinphoneReasonBusy
3240 **/
3241 int linphone_core_decline_call(LinphoneCore *lc, LinphoneCall * call, LinphoneReason reason){
3242         SalReason sal_reason=SalReasonUnknown;
3243         if (call->state!=LinphoneCallIncomingReceived && call->state!=LinphoneCallIncomingEarlyMedia){
3244                 ms_error("linphone_core_decline_call(): Cannot decline a call that is in state %s",linphone_call_state_to_string(call->state));
3245                 return -1;
3246         }
3247         switch(reason){
3248                 case LinphoneReasonDeclined:
3249                         sal_reason=SalReasonDeclined;
3250                 break;
3251                 case LinphoneReasonBusy:
3252                         sal_reason=SalReasonBusy;
3253                 break;
3254                 default:
3255                         ms_error("linphone_core_decline_call(): unsupported reason %s",linphone_reason_to_string(reason));
3256                         return -1;
3257                 break;
3258         }
3259         sal_call_decline(call->op,sal_reason,NULL);
3260         terminate_call(lc,call);
3261         return 0;
3262 }
3263
3264 /**
3265  * Terminates all the calls.
3266  *
3267  * @ingroup call_control
3268  * @param lc The LinphoneCore
3269 **/
3270 int linphone_core_terminate_all_calls(LinphoneCore *lc){
3271         MSList *calls=lc->calls;
3272         while(calls) {
3273                 LinphoneCall *c=(LinphoneCall*)calls->data;
3274                 calls=calls->next;
3275                 linphone_core_terminate_call(lc,c);
3276         }
3277         return 0;
3278 }
3279
3280 /**
3281  * Returns the current list of calls.
3282  *
3283  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
3284  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
3285  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
3286  *
3287  * @ingroup call_control
3288 **/
3289 const MSList *linphone_core_get_calls(LinphoneCore *lc)
3290 {
3291         return lc->calls;
3292 }
3293
3294 /**
3295  * Returns TRUE if there is a call running.
3296  *
3297  * @ingroup call_control
3298 **/
3299 bool_t linphone_core_in_call(const LinphoneCore *lc){
3300         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
3301 }
3302
3303 /**
3304  * Returns The _LinphoneCall struct of the current call if one is in call
3305  *
3306  * @ingroup call_control
3307 **/
3308 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
3309 {
3310         return lc->current_call;
3311 }
3312
3313 /**
3314  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
3315  * this file will be played to the remote user.
3316  *
3317  * @ingroup call_control
3318 **/
3319 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
3320 {
3321         const char *subject=NULL;
3322
3323         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
3324                 ms_warning("Cannot pause this call, it is not active.");
3325                 return -1;
3326         }
3327         linphone_call_make_local_media_description(lc,call);
3328         if (call->ice_session != NULL) {
3329                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3330         }
3331 #ifdef BUILD_UPNP
3332         if(call->upnp_session != NULL) {
3333                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3334         }
3335 #endif //BUILD_UPNP
3336         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
3337                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3338                 subject="Call on hold";
3339         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
3340                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3341                 subject="Call on hold for me too";
3342         }else{
3343                 ms_error("No reason to pause this call, it is already paused or inactive.");
3344                 return -1;
3345         }
3346         sal_call_set_local_media_description(call->op,call->localdesc);
3347         if (sal_call_update(call->op,subject) != 0){
3348                 if (lc->vtable.display_warning)
3349                         lc->vtable.display_warning(lc,_("Could not pause the call"));
3350         }
3351         lc->current_call=NULL;
3352         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
3353         if (lc->vtable.display_status)
3354                 lc->vtable.display_status(lc,_("Pausing the current call..."));
3355         if (call->audiostream || call->videostream)
3356                 linphone_call_stop_media_streams (call);
3357         return 0;
3358 }
3359
3360 /**
3361  * Pause all currently running calls.
3362  * @ingroup call_control
3363 **/
3364 int linphone_core_pause_all_calls(LinphoneCore *lc){
3365         const MSList *elem;
3366         for(elem=lc->calls;elem!=NULL;elem=elem->next){
3367                 LinphoneCall *call=(LinphoneCall *)elem->data;
3368                 LinphoneCallState cs=linphone_call_get_state(call);
3369                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3370                         linphone_core_pause_call(lc,call);
3371                 }
3372         }
3373         return 0;
3374 }
3375
3376 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3377         LinphoneCall *current_call;
3378         if (linphone_core_is_in_conference(lc)){
3379                 linphone_core_leave_conference(lc);
3380                 return;
3381         }
3382         current_call=linphone_core_get_current_call(lc);
3383         if(current_call != NULL){
3384                 ms_message("Pausing automatically the current call.");
3385                 linphone_core_pause_call(lc,current_call);
3386         }
3387 }
3388
3389 /**
3390  * Resumes the call.
3391  *
3392  * @ingroup call_control
3393 **/
3394 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3395 {
3396         char temp[255]={0};
3397         LinphoneCall *call = the_call;
3398         const char *subject="Call resuming";
3399
3400         if(call->state!=LinphoneCallPaused ){
3401                 ms_warning("we cannot resume a call that has not been established and paused before");
3402                 return -1;
3403         }
3404         if (call->params.in_conference==FALSE){
3405                 linphone_core_preempt_sound_resources(lc);
3406                 ms_message("Resuming call %p",call);
3407         }
3408
3409         /* Stop playing music immediately. If remote side is a conference it
3410          prevents the participants to hear it while the 200OK comes back.*/
3411         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3412
3413         linphone_call_make_local_media_description(lc,the_call);
3414         if (call->ice_session != NULL) {
3415                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3416         }
3417 #ifdef BUILD_UPNP
3418         if(call->upnp_session != NULL) {
3419                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3420         }
3421 #endif //BUILD_UPNP
3422         sal_call_set_local_media_description(call->op,call->localdesc);
3423         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3424         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3425         if(sal_call_update(call->op,subject) != 0){
3426                 return -1;
3427         }
3428         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3429         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3430         if (lc->vtable.display_status)
3431                 lc->vtable.display_status(lc,temp);
3432         return 0;
3433 }
3434
3435 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3436         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3437         return !linphone_address_weak_equal (addr,raddr);
3438 }
3439
3440 /**
3441  * Get the call with the remote_address specified
3442  * @param lc
3443  * @param remote_address
3444  * @return the LinphoneCall of the call if found
3445  *
3446  * @ingroup call_control
3447  */
3448 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3449         LinphoneAddress *raddr=linphone_address_new(remote_address);
3450         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3451         if (elem) return (LinphoneCall*) elem->data;
3452         return NULL;
3453 }
3454
3455 int linphone_core_send_publish(LinphoneCore *lc,
3456                                LinphoneOnlineStatus presence_mode)
3457 {
3458         const MSList *elem;
3459         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3460                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3461                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3462         }
3463         return 0;
3464 }
3465
3466 /**
3467  * Set the incoming call timeout in seconds.
3468  *
3469  * @ingroup call_control
3470  * If an incoming call isn't answered for this timeout period, it is
3471  * automatically declined.
3472 **/
3473 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3474         lc->sip_conf.inc_timeout=seconds;
3475         if (linphone_core_ready(lc)){
3476                 lp_config_set_int(lc->config,"sip","inc_timeout",seconds);
3477         }
3478 }
3479
3480 /**
3481  * Returns the incoming call timeout
3482  *
3483  * @ingroup call_control
3484  * See linphone_core_set_inc_timeout() for details.
3485 **/
3486 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3487         return lc->sip_conf.inc_timeout;
3488 }
3489
3490 /**
3491  * Set the in call timeout in seconds.
3492  *
3493  * @ingroup call_control
3494  * After this timeout period, the call is automatically hangup.
3495 **/
3496 void linphone_core_set_in_call_timeout(LinphoneCore *lc, int seconds){
3497         lc->sip_conf.in_call_timeout=seconds;
3498 }
3499
3500 /**
3501  * Returns the in call timeout
3502  *
3503  * @ingroup call_control
3504  * See linphone_core_set_in_call_timeout() for details.
3505 **/
3506 int linphone_core_get_in_call_timeout(LinphoneCore *lc){
3507         return lc->sip_conf.in_call_timeout;
3508 }
3509
3510 /**
3511  * Returns the delayed timeout
3512  *
3513  * @ingroup call_control
3514  * See linphone_core_set_delayed_timeout() for details.
3515 **/
3516 int linphone_core_get_delayed_timeout(LinphoneCore *lc){
3517         return lc->sip_conf.delayed_timeout;
3518 }
3519
3520 /**
3521  * Set the in delayed timeout in seconds.
3522  *
3523  * @ingroup call_control
3524  * After this timeout period, a delayed call (internal call initialisation or resolution) is resumed.
3525 **/
3526 void linphone_core_set_delayed_timeout(LinphoneCore *lc, int seconds){
3527         lc->sip_conf.delayed_timeout=seconds;
3528 }
3529
3530 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3531                                                                                                         const char *contact,
3532                                                                                                         LinphoneOnlineStatus presence_mode)
3533 {
3534         if (minutes_away>0) lc->minutes_away=minutes_away;
3535
3536         if (lc->alt_contact!=NULL) {
3537                 ms_free(lc->alt_contact);
3538                 lc->alt_contact=NULL;
3539         }
3540         if (contact) lc->alt_contact=ms_strdup(contact);
3541         if (lc->presence_mode!=presence_mode){
3542                 linphone_core_notify_all_friends(lc,presence_mode);
3543                 /*
3544                    Improve the use of all LINPHONE_STATUS available.
3545                    !TODO Do not mix "presence status" with "answer status code"..
3546                    Use correct parameter to follow sip_if_match/sip_etag.
3547                  */
3548                 linphone_core_send_publish(lc,presence_mode);
3549         }
3550         lc->presence_mode=presence_mode;
3551 }
3552
3553 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3554         return lc->presence_mode;
3555 }
3556
3557 /**
3558  * Get playback sound level in 0-100 scale.
3559  *
3560  * @ingroup media_parameters
3561 **/
3562 int linphone_core_get_play_level(LinphoneCore *lc)
3563 {
3564         return lc->sound_conf.play_lev;
3565 }
3566
3567 /**
3568  * Get ring sound level in 0-100 scale
3569  *
3570  * @ingroup media_parameters
3571 **/
3572 int linphone_core_get_ring_level(LinphoneCore *lc)
3573 {
3574         return lc->sound_conf.ring_lev;
3575 }
3576
3577 /**
3578  * Get sound capture level in 0-100 scale
3579  *
3580  * @ingroup media_parameters
3581 **/
3582 int linphone_core_get_rec_level(LinphoneCore *lc){
3583         return lc->sound_conf.rec_lev;
3584 }
3585
3586 /**
3587  * Set sound ring level in 0-100 scale
3588  *
3589  * @ingroup media_parameters
3590 **/
3591 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3592         MSSndCard *sndcard;
3593         lc->sound_conf.ring_lev=level;
3594         sndcard=lc->sound_conf.ring_sndcard;
3595         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3596 }
3597
3598 /**
3599  * Allow to control microphone level:  gain in db
3600  *
3601  * @ingroup media_parameters
3602 **/
3603 void linphone_core_set_mic_gain_db (LinphoneCore *lc, float gaindb){
3604         float gain=gaindb;
3605         LinphoneCall *call=linphone_core_get_current_call (lc);
3606         AudioStream *st;
3607
3608         lc->sound_conf.soft_mic_lev=gaindb;
3609
3610         if (linphone_core_ready(lc)){
3611                 lp_config_set_float(lc->config,"sound","mic_gain_db",lc->sound_conf.soft_mic_lev);
3612         }
3613
3614         if (call==NULL || (st=call->audiostream)==NULL){
3615                 ms_message("linphone_core_set_mic_gain_db(): no active call.");
3616                 return;
3617         }
3618         if (st->volrecv){
3619                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_DB_GAIN,&gain);
3620         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3621 }
3622
3623 /**
3624  * Get microphone gain in db.
3625  *
3626  * @ingroup media_parameters
3627 **/
3628 float linphone_core_get_mic_gain_db(LinphoneCore *lc) {
3629         return lc->sound_conf.soft_mic_lev;
3630 }
3631
3632 /**
3633  * Allow to control play level before entering sound card:  gain in db
3634  *
3635  * @ingroup media_parameters
3636 **/
3637 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3638         float gain=gaindb;
3639         LinphoneCall *call=linphone_core_get_current_call (lc);
3640         AudioStream *st;
3641
3642         lc->sound_conf.soft_play_lev=gaindb;
3643         if (linphone_core_ready(lc)){
3644                 lp_config_set_float(lc->config,"sound","playback_gain_db",lc->sound_conf.soft_play_lev);
3645         }
3646
3647         if (call==NULL || (st=call->audiostream)==NULL){
3648                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3649                 return;
3650         }
3651         if (st->volrecv){
3652                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3653         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3654 }
3655
3656 /**
3657  * Get playback gain in db before entering  sound card.
3658  *
3659  * @ingroup media_parameters
3660 **/
3661 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3662         return lc->sound_conf.soft_play_lev;
3663 }
3664
3665 /**
3666  * Set sound playback level in 0-100 scale
3667  *
3668  * @ingroup media_parameters
3669 **/
3670 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3671         MSSndCard *sndcard;
3672         lc->sound_conf.play_lev=level;
3673         sndcard=lc->sound_conf.play_sndcard;
3674         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3675 }
3676
3677 /**
3678  * Set sound capture level in 0-100 scale
3679  *
3680  * @ingroup media_parameters
3681 **/
3682 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3683 {
3684         MSSndCard *sndcard;
3685         lc->sound_conf.rec_lev=level;
3686         sndcard=lc->sound_conf.capt_sndcard;
3687         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3688 }
3689
3690 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3691         MSSndCard *sndcard=NULL;
3692         if (devid!=NULL){
3693                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3694                 if (sndcard!=NULL &&
3695                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3696                         ms_warning("%s card does not have the %s capability, ignoring.",
3697                                 devid,
3698                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3699                         sndcard=NULL;
3700                 }
3701         }
3702         if (sndcard==NULL) {
3703                 /* get a card that has read+write capabilities */
3704                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3705                 /* otherwise refine to the first card having the right capability*/
3706                 if (sndcard==NULL){
3707                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3708                         for(;elem!=NULL;elem=elem->next){
3709                                 sndcard=(MSSndCard*)elem->data;
3710                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3711                         }
3712                 }
3713                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3714                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3715                         if (elem) sndcard=(MSSndCard*)elem->data;
3716         }
3717         }
3718         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3719         return sndcard;
3720 }
3721
3722 /**
3723  * Returns true if the specified sound device can capture sound.
3724  *
3725  * @ingroup media_parameters
3726  * @param lc The LinphoneCore object
3727  * @param devid the device name as returned by linphone_core_get_sound_devices()
3728 **/
3729 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3730         MSSndCard *sndcard;
3731         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3732         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3733         return FALSE;
3734 }
3735
3736 /**
3737  * Returns true if the specified sound device can play sound.
3738  *
3739  * @ingroup media_parameters
3740  * @param lc The LinphoneCore object
3741  * @param devid the device name as returned by linphone_core_get_sound_devices()
3742 **/
3743 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3744         MSSndCard *sndcard;
3745         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3746         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3747         return FALSE;
3748 }
3749
3750 /**
3751  * Sets the sound device used for ringing.
3752  *
3753  * @ingroup media_parameters
3754  * @param lc The LinphoneCore object
3755  * @param devid the device name as returned by linphone_core_get_sound_devices()
3756 **/
3757 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3758         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3759         lc->sound_conf.ring_sndcard=card;
3760         if (card && linphone_core_ready(lc))
3761                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3762         return 0;
3763 }
3764
3765 /**
3766  * Sets the sound device used for playback.
3767  *
3768  * @ingroup media_parameters
3769  * @param lc The LinphoneCore object
3770  * @param devid the device name as returned by linphone_core_get_sound_devices()
3771 **/
3772 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3773         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3774         lc->sound_conf.play_sndcard=card;
3775         if (card &&  linphone_core_ready(lc))
3776                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3777         return 0;
3778 }
3779
3780 /**
3781  * Sets the sound device used for capture.
3782  *
3783  * @ingroup media_parameters
3784  * @param lc The LinphoneCore object
3785  * @param devid the device name as returned by linphone_core_get_sound_devices()
3786 **/
3787 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3788         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3789         lc->sound_conf.capt_sndcard=card;
3790         if (card &&  linphone_core_ready(lc))
3791                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3792         return 0;
3793 }
3794
3795 /**
3796  * Returns the name of the currently assigned sound device for ringing.
3797  *
3798  * @ingroup media_parameters
3799  * @param lc The LinphoneCore object
3800 **/
3801 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3802 {
3803         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3804         return NULL;
3805 }
3806
3807 /**
3808  * Returns the name of the currently assigned sound device for playback.
3809  *
3810  * @ingroup media_parameters
3811  * @param lc The LinphoneCore object
3812 **/
3813 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3814 {
3815         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3816 }
3817
3818 /**
3819  * Returns the name of the currently assigned sound device for capture.
3820  *
3821  * @ingroup media_parameters
3822  * @param lc The LinphoneCore object
3823 **/
3824 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3825 {
3826         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3827 }
3828
3829 /**
3830  * Returns an unmodifiable array of available sound devices.
3831  *
3832  * The array is NULL terminated.
3833  *
3834  * @ingroup media_parameters
3835  * @param lc The LinphoneCore object
3836 **/
3837 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3838         return lc->sound_conf.cards;
3839 }
3840
3841 /**
3842  * Returns an unmodifiable array of available video capture devices.
3843  *
3844  * @ingroup media_parameters
3845  * The array is NULL terminated.
3846 **/
3847 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3848         return lc->video_conf.cams;
3849 }
3850
3851 /**
3852  * Update detection of sound devices.
3853  *
3854  * Use this function when the application is notified of USB plug events, so that
3855  * list of available hardwares for sound playback and capture is updated.
3856  **/
3857 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3858         const char *ringer,*playback,*capture;
3859         ringer=linphone_core_get_ringer_device(lc);
3860         playback=linphone_core_get_playback_device(lc);
3861         capture=linphone_core_get_capture_device(lc);
3862         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3863         build_sound_devices_table(lc);
3864         linphone_core_set_ringer_device(lc,ringer);
3865         linphone_core_set_playback_device(lc,playback);
3866         linphone_core_set_capture_device(lc,capture);
3867 }
3868
3869 /**
3870  * Update detection of camera devices.
3871  *
3872  * Use this function when the application is notified of USB plug events, so that
3873  * list of available hardwares for video capture is updated.
3874  **/
3875 void linphone_core_reload_video_devices(LinphoneCore *lc){
3876         const char *devid;
3877         devid=linphone_core_get_video_device(lc);
3878         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3879         build_video_devices_table(lc);
3880         linphone_core_set_video_device(lc,devid);
3881 }
3882
3883 char linphone_core_get_sound_source(LinphoneCore *lc)
3884 {
3885         return lc->sound_conf.source;
3886 }
3887
3888 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3889 {
3890         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3891         lc->sound_conf.source=source;
3892         if (!sndcard) return;
3893         switch(source){
3894                 case 'm':
3895                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3896                         break;
3897                 case 'l':
3898                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3899                         break;
3900         }
3901
3902 }
3903
3904
3905 /**
3906  * Sets the path to a wav file used for ringing.
3907  *
3908  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3909  * @param lc The LinphoneCore object
3910  *
3911  * @ingroup media_parameters
3912 **/
3913 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3914         if (lc->sound_conf.local_ring!=0){
3915                 ms_free(lc->sound_conf.local_ring);
3916                 lc->sound_conf.local_ring=NULL;
3917         }
3918         if (path)
3919                 lc->sound_conf.local_ring=ms_strdup(path);
3920         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3921                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3922 }
3923
3924 /**
3925  * Returns the path to the wav file used for ringing.
3926  *
3927  * @param lc The LinphoneCore object
3928  * @ingroup media_parameters
3929 **/
3930 const char *linphone_core_get_ring(const LinphoneCore *lc){
3931         return lc->sound_conf.local_ring;
3932 }
3933
3934 /**
3935  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3936  *
3937  * @param path
3938  * @param lc The LinphoneCore object
3939  *
3940  * @ingroup initializing
3941 **/
3942 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3943         sal_set_root_ca(lc->sal, path);
3944 }
3945
3946 /**
3947  * Gets the path to a file or folder containing the trusted root CAs (PEM format)
3948  *
3949  * @param lc The LinphoneCore object
3950  *
3951  * @ingroup initializing
3952 **/
3953 const char *linphone_core_get_root_ca(LinphoneCore *lc){
3954         return sal_get_root_ca(lc->sal);
3955 }
3956
3957 /**
3958  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3959  *
3960  * @ingroup initializing
3961 **/
3962 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3963         sal_verify_server_certificates(lc->sal,yesno);
3964 }
3965
3966 /**
3967  * Specify whether the tls server certificate common name must be verified when connecting to a SIP/TLS server.
3968  * @ingroup initializing
3969 **/
3970 void linphone_core_verify_server_cn(LinphoneCore *lc, bool_t yesno){
3971         sal_verify_server_cn(lc->sal,yesno);
3972 }
3973
3974 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3975         LinphoneCore *lc=(LinphoneCore*)ud;
3976         lc->preview_finished=1;
3977 }
3978
3979 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3980 {
3981         if (lc->ringstream!=0){
3982                 ms_warning("Cannot start ring now,there's already a ring being played");
3983                 return -1;
3984         }
3985         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3986         lc->preview_finished=0;
3987         if (lc->sound_conf.ring_sndcard!=NULL){
3988                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3989                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3990         }
3991         return 0;
3992 }
3993
3994 /**
3995  * Sets the path to a wav file used for ringing back.
3996  *
3997  * Ringback means the ring that is heard when it's ringing at the remote party.
3998  * The file must be a wav 16bit linear.
3999  *
4000  * @ingroup media_parameters
4001 **/
4002 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
4003         if (lc->sound_conf.remote_ring!=0){
4004                 ms_free(lc->sound_conf.remote_ring);
4005         }
4006         lc->sound_conf.remote_ring=ms_strdup(path);
4007 }
4008
4009 /**
4010  * Returns the path to the wav file used for ringing back.
4011  *
4012  * @ingroup media_parameters
4013 **/
4014 const char * linphone_core_get_ringback(const LinphoneCore *lc){
4015         return lc->sound_conf.remote_ring;
4016 }
4017
4018 /**
4019  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
4020  *
4021  * @ingroup media_parameters
4022 **/
4023 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
4024         lc->sound_conf.ec=val;
4025         if ( linphone_core_ready(lc))
4026                 lp_config_set_int(lc->config,"sound","echocancellation",val);
4027 }
4028
4029
4030 /**
4031  * Returns TRUE if echo cancellation is enabled.
4032  *
4033  * @ingroup media_parameters
4034 **/
4035 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
4036         return lc->sound_conf.ec;
4037 }
4038
4039 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
4040         lc->sound_conf.ea=val;
4041 }
4042
4043 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
4044         return lc->sound_conf.ea;
4045 }
4046
4047 /**
4048  * Mutes or unmutes the local microphone.
4049  *
4050  * @ingroup media_parameters
4051 **/
4052 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
4053         LinphoneCall *call=linphone_core_get_current_call(lc);
4054         AudioStream *st=NULL;
4055         if (linphone_core_is_in_conference(lc)){
4056                 lc->conf_ctx.local_muted=val;
4057                 st=lc->conf_ctx.local_participant;
4058         }else if (call==NULL){
4059                 ms_warning("linphone_core_mute_mic(): No current call !");
4060                 return;
4061         }else{
4062                 st=call->audiostream;
4063                 call->audio_muted=val;
4064         }
4065         if (st!=NULL){
4066                 audio_stream_set_mic_gain(st,
4067                         (val==TRUE) ? 0 : pow(10,lc->sound_conf.soft_mic_lev/10));
4068                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
4069                         audio_stream_mute_rtp(st,val);
4070                 }
4071
4072         }
4073 }
4074 /**
4075  * Returns whether microphone is muted.
4076 **/
4077 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
4078         LinphoneCall *call=linphone_core_get_current_call(lc);
4079         if (linphone_core_is_in_conference(lc)){
4080                 return lc->conf_ctx.local_muted;
4081         }else if (call==NULL){
4082                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4083                 return FALSE;
4084         }
4085         return call->audio_muted;
4086 }
4087
4088 // returns rtp transmission status for an active stream
4089 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
4090 // was set on then rtp transmission is also muted
4091 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
4092         LinphoneCall *call=linphone_core_get_current_call(lc);
4093         if (call==NULL){
4094                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4095                 return FALSE;
4096         }
4097         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
4098                 return call->audio_muted;
4099         }
4100         return FALSE;
4101 }
4102
4103 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
4104         lc->sound_conf.agc=val;
4105 }
4106
4107 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
4108         return lc->sound_conf.agc;
4109 }
4110
4111 /**
4112  * Send the specified dtmf.
4113  *
4114  * @ingroup media_parameters
4115  * This function only works during calls. The dtmf is automatically played to the user.
4116  * @param lc The LinphoneCore object
4117  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
4118  *
4119 **/
4120 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
4121 {
4122         LinphoneCall *call=linphone_core_get_current_call(lc);
4123         if (call==NULL){
4124                 ms_warning("linphone_core_send_dtmf(): no active call");
4125                 return;
4126         }
4127         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
4128         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
4129         {
4130                 /* In Band DTMF */
4131                 if (call->audiostream!=NULL){
4132                         audio_stream_send_dtmf(call->audiostream,dtmf);
4133                 }
4134                 else
4135                 {
4136                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
4137                 }
4138         }
4139         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
4140                 /* Out of Band DTMF (use INFO method) */
4141                 sal_call_send_dtmf(call->op,dtmf);
4142         }
4143 }
4144
4145 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
4146         if (lc->net_conf.stun_server!=NULL)
4147                 ms_free(lc->net_conf.stun_server);
4148         if (server)
4149                 lc->net_conf.stun_server=ms_strdup(server);
4150         else lc->net_conf.stun_server=NULL;
4151         if (linphone_core_ready(lc))
4152                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
4153 }
4154
4155 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
4156         return lc->net_conf.stun_server;
4157 }
4158
4159 bool_t linphone_core_upnp_available(const LinphoneCore *lc){
4160 #ifdef BUILD_UPNP
4161         return TRUE;
4162 #else
4163         return FALSE;
4164 #endif //BUILD_UPNP
4165 }
4166
4167 LinphoneUpnpState linphone_core_get_upnp_state(const LinphoneCore *lc){
4168 #ifdef BUILD_UPNP
4169         return linphone_upnp_context_get_state(lc->upnp);
4170 #else
4171         return LinphoneUpnpStateNotAvailable;
4172 #endif //BUILD_UPNP
4173 }
4174
4175 const char * linphone_core_get_upnp_external_ipaddress(const LinphoneCore *lc){
4176 #ifdef BUILD_UPNP
4177         return linphone_upnp_context_get_external_ipaddress(lc->upnp);
4178 #else
4179         return NULL;
4180 #endif //BUILD_UPNP
4181 }
4182
4183
4184 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
4185         return lc->net_conf.relay;
4186 }
4187
4188 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
4189         if (lc->net_conf.relay!=NULL){
4190                 ms_free(lc->net_conf.relay);
4191                 lc->net_conf.relay=NULL;
4192         }
4193         if (addr){
4194                 lc->net_conf.relay=ms_strdup(addr);
4195         }
4196         return 0;
4197 }
4198
4199 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
4200 {
4201         if (lc->net_conf.nat_address!=NULL){
4202                 ms_free(lc->net_conf.nat_address);
4203         }
4204         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
4205         else lc->net_conf.nat_address=NULL;
4206         if (lc->sip_conf.contact) update_primary_contact(lc);
4207 }
4208
4209 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
4210         return lc->net_conf.nat_address;
4211 }
4212
4213 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
4214 {
4215         struct sockaddr_storage ss;
4216         socklen_t ss_len;
4217         int error;
4218         char ipstring [INET6_ADDRSTRLEN];
4219
4220         if (lc->net_conf.nat_address==NULL) return NULL;
4221
4222         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
4223                 return lc->net_conf.nat_address;
4224         }
4225
4226         error = getnameinfo((struct sockaddr *)&ss, ss_len,
4227                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
4228         if (error) {
4229                 return lc->net_conf.nat_address;
4230         }
4231
4232         if (lc->net_conf.nat_address_ip!=NULL){
4233                 ms_free(lc->net_conf.nat_address_ip);
4234         }
4235         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
4236         return lc->net_conf.nat_address_ip;
4237 }
4238
4239 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
4240 #ifndef BUILD_UPNP
4241         if(pol == LinphonePolicyUseUpnp) {
4242                 ms_warning("UPNP is not available, reset firewall policy to no firewall");
4243                 pol = LinphonePolicyNoFirewall;
4244         }
4245 #endif //BUILD_UPNP
4246         lc->net_conf.firewall_policy=pol;
4247 #ifdef BUILD_UPNP
4248         if(pol == LinphonePolicyUseUpnp) {
4249                 if(lc->upnp == NULL) {
4250                         lc->upnp = linphone_upnp_context_new(lc);
4251                 }
4252         } else {
4253                 if(lc->upnp != NULL) {
4254                         linphone_upnp_context_destroy(lc->upnp);
4255                         lc->upnp = NULL;
4256                 }
4257         }
4258         linphone_core_enable_keep_alive(lc, (lc->sip_conf.keepalive_period > 0));
4259 #endif //BUILD_UPNP
4260         if (lc->sip_conf.contact) update_primary_contact(lc);
4261         if (linphone_core_ready(lc))
4262                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
4263 }
4264
4265 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
4266         return lc->net_conf.firewall_policy;
4267 }
4268
4269 /**
4270  * Get the list of call logs (past calls).
4271  *
4272  * @ingroup call_logs
4273 **/
4274 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
4275         return lc->call_logs;
4276 }
4277
4278 /**
4279  * Erase the call log.
4280  *
4281  * @ingroup call_logs
4282 **/
4283 void linphone_core_clear_call_logs(LinphoneCore *lc){
4284         lc->missed_calls=0;
4285         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4286         lc->call_logs=ms_list_free(lc->call_logs);
4287         call_logs_write_to_config_file(lc);
4288 }
4289
4290 /**
4291  * Returns number of missed calls.
4292  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
4293 **/
4294 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
4295         return lc->missed_calls;
4296 }
4297
4298 /**
4299  * Resets the counter of missed calls.
4300 **/
4301 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
4302         lc->missed_calls=0;
4303 }
4304
4305 /**
4306  * Remove a specific call log from call history list.
4307  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
4308  * @param lc the linphone core object
4309  * @param a LinphoneCallLog object.
4310 **/
4311 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
4312         lc->call_logs = ms_list_remove(lc->call_logs, cl);
4313         call_logs_write_to_config_file(lc);
4314         linphone_call_log_destroy(cl);
4315 }
4316
4317 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
4318 #ifdef VIDEO_ENABLED
4319         if (val){
4320                 if (lc->previewstream==NULL){
4321                         lc->previewstream=video_preview_new();
4322                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
4323                         if (lc->video_conf.displaytype)
4324                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
4325                         if (lc->preview_window_id!=0)
4326                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
4327                         video_preview_start(lc->previewstream,lc->video_conf.device);
4328                 }
4329         }else{
4330                 if (lc->previewstream!=NULL){
4331                         video_preview_stop(lc->previewstream);
4332                         lc->previewstream=NULL;
4333                 }
4334         }
4335 #endif
4336 }
4337
4338 /**
4339  * Enables video globally.
4340  *
4341  * @ingroup media_parameters
4342  * This function does not have any effect during calls. It just indicates LinphoneCore to
4343  * initiate future calls with video or not. The two boolean parameters indicate in which
4344  * direction video is enabled. Setting both to false disables video entirely.
4345  *
4346  * @param lc The LinphoneCore object
4347  * @param vcap_enabled indicates whether video capture is enabled
4348  * @param display_enabled indicates whether video display should be shown
4349  *
4350 **/
4351 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
4352 #ifndef VIDEO_ENABLED
4353         if (vcap_enabled || display_enabled)
4354                 ms_warning("This version of linphone was built without video support.");
4355 #endif
4356         lc->video_conf.capture=vcap_enabled;
4357         lc->video_conf.display=display_enabled;
4358         if (linphone_core_ready(lc)){
4359                 lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4360                 lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4361         }
4362         /* need to re-apply network bandwidth settings*/
4363         linphone_core_set_download_bandwidth(lc,
4364                 linphone_core_get_download_bandwidth(lc));
4365         linphone_core_set_upload_bandwidth(lc,
4366                 linphone_core_get_upload_bandwidth(lc));
4367 }
4368
4369 bool_t linphone_core_video_supported(LinphoneCore *lc){
4370 #ifdef VIDEO_ENABLED
4371         return TRUE;
4372 #else
4373         return FALSE;
4374 #endif
4375 }
4376
4377 /**
4378  * Returns TRUE if video is enabled, FALSE otherwise.
4379  * @ingroup media_parameters
4380 **/
4381 bool_t linphone_core_video_enabled(LinphoneCore *lc){
4382         return (lc->video_conf.display || lc->video_conf.capture);
4383 }
4384
4385 /**
4386  * Sets the default policy for video.
4387  * This policy defines whether:
4388  * - video shall be initiated by default for outgoing calls
4389  * - video shall be accepter by default for incoming calls
4390  * @ingroup media_parameters
4391 **/
4392 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
4393         lc->video_policy=*policy;
4394         if (linphone_core_ready(lc)){
4395                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
4396                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
4397         }
4398 }
4399
4400 /**
4401  * Get the default policy for video.
4402  * See linphone_core_set_video_policy() for more details.
4403  * @ingroup media_parameters
4404 **/
4405 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
4406         return &lc->video_policy;
4407 }
4408
4409 /**
4410  * Controls video preview enablement.
4411  *
4412  * @ingroup media_parameters
4413  * Video preview refers to the action of displaying the local webcam image
4414  * to the user while not in call.
4415 **/
4416 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
4417         lc->video_conf.show_local=val;
4418         if (linphone_core_ready(lc))
4419                 lp_config_set_int(lc->config,"video","show_local",val);
4420 }
4421
4422 /**
4423  * Returns TRUE if video previewing is enabled.
4424  * @ingroup media_parameters
4425 **/
4426 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
4427         return lc->video_conf.show_local;
4428 }
4429
4430 /**
4431  * Enables or disable self view during calls.
4432  *
4433  * @ingroup media_parameters
4434  * Self-view refers to having local webcam image inserted in corner
4435  * of the video window during calls.
4436  * This function works at any time, including during calls.
4437 **/
4438 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
4439 #ifdef VIDEO_ENABLED
4440         LinphoneCall *call=linphone_core_get_current_call (lc);
4441         lc->video_conf.selfview=val;
4442         if (call && call->videostream){
4443                 video_stream_enable_self_view(call->videostream,val);
4444         }
4445         if (linphone_core_ready(lc)){
4446                 lp_config_set_int(lc->config,"video","self_view",val);
4447         }
4448 #endif
4449 }
4450
4451 /**
4452  * Returns TRUE if self-view is enabled, FALSE otherwise.
4453  *
4454  * @ingroup media_parameters
4455  *
4456  * Refer to linphone_core_enable_self_view() for details.
4457 **/
4458 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
4459         return lc->video_conf.selfview;
4460 }
4461
4462 /**
4463  * Sets the active video device.
4464  *
4465  * @ingroup media_parameters
4466  * @param lc The LinphoneCore object
4467  * @param id the name of the video device as returned by linphone_core_get_video_devices()
4468 **/
4469 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
4470         MSWebCam *olddev=lc->video_conf.device;
4471         const char *vd;
4472         if (id!=NULL){
4473                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
4474                 if (lc->video_conf.device==NULL){
4475                         ms_warning("Could not find video device %s",id);
4476                 }
4477         }
4478         if (lc->video_conf.device==NULL)
4479                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
4480         if (olddev!=NULL && olddev!=lc->video_conf.device){
4481                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
4482         }
4483         if ( linphone_core_ready(lc) && lc->video_conf.device){
4484                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
4485                 if (vd && strstr(vd,"Static picture")!=NULL){
4486                         vd=NULL;
4487                 }
4488                 lp_config_set_string(lc->config,"video","device",vd);
4489         }
4490         return 0;
4491 }
4492
4493 /**
4494  * Returns the name of the currently active video device.
4495  *
4496  * @param lc The LinphoneCore object
4497  * @ingroup media_parameters
4498 **/
4499 const char *linphone_core_get_video_device(const LinphoneCore *lc){
4500         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
4501         return NULL;
4502 }
4503
4504 #ifdef VIDEO_ENABLED
4505 static VideoStream * get_active_video_stream(LinphoneCore *lc){
4506         VideoStream *vs = NULL;
4507         LinphoneCall *call=linphone_core_get_current_call (lc);
4508         /* Select the video stream from the call in the first place */
4509         if (call && call->videostream) {
4510                 vs = call->videostream;
4511         }
4512         /* If not in call, select the video stream from the preview */
4513         if (vs == NULL && lc->previewstream) {
4514                 vs = lc->previewstream;
4515         }
4516         return vs;
4517 }
4518 #endif
4519
4520 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
4521 #ifdef VIDEO_ENABLED
4522         VideoStream *vs=get_active_video_stream(lc);
4523         /* If we have a video stream (either preview, either from call), we
4524                  have a source and it is using the static picture filter, then
4525                  force the filter to use that picture. */
4526         if (vs && vs->source) {
4527                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4528                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4529                                                                                                                 (void *)path);
4530                 }
4531         }
4532         /* Tell the static image filter to use that image from now on so
4533                  that the image will be used next time it has to be read */
4534         ms_static_image_set_default_image(path);
4535 #else
4536         ms_warning("Video support not compiled.");
4537 #endif
4538         return 0;
4539 }
4540
4541 const char *linphone_core_get_static_picture(LinphoneCore *lc) {
4542         const char *path=NULL;
4543 #ifdef VIDEO_ENABLED
4544         path=ms_static_image_get_default_image();
4545 #else
4546         ms_warning("Video support not compiled.");
4547 #endif
4548         return path;
4549 }
4550
4551 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4552 #ifdef VIDEO_ENABLED
4553         VideoStream *vs = NULL;
4554
4555         vs=get_active_video_stream(lc);
4556
4557         /* If we have a video stream (either preview, either from call), we
4558                  have a source and it is using the static picture filter, then
4559                  force the filter to use that picture. */
4560         if (vs && vs->source) {
4561                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4562                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4563                 }
4564         }
4565 #else
4566         ms_warning("Video support not compiled.");
4567 #endif
4568         return 0;
4569 }
4570
4571 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4572 #ifdef VIDEO_ENABLED
4573         VideoStream *vs = NULL;
4574         vs=get_active_video_stream(lc);
4575         /* If we have a video stream (either preview, either from call), we
4576                  have a source and it is using the static picture filter, then
4577                  force the filter to use that picture. */
4578         if (vs && vs->source) {
4579                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4580
4581                         float fps;
4582
4583                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4584                         return fps;
4585                 }
4586         }
4587 #else
4588         ms_warning("Video support not compiled.");
4589 #endif
4590         return 0;
4591 }
4592
4593 /**
4594  * Returns the native window handle of the video window, casted as an unsigned long.
4595  *
4596  * @ingroup media_parameters
4597 **/
4598 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4599 #ifdef VIDEO_ENABLED
4600         LinphoneCall *call=linphone_core_get_current_call (lc);
4601         if (call && call->videostream)
4602                 return video_stream_get_native_window_id(call->videostream);
4603         if (lc->previewstream)
4604                 return video_stream_get_native_window_id(lc->previewstream);
4605 #endif
4606         return lc->video_window_id;
4607 }
4608
4609 /**@ingroup media_parameters
4610  * Set the native video window id where the video is to be displayed.
4611  * If not set the core will create its own window.
4612 **/
4613 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4614 #ifdef VIDEO_ENABLED
4615         LinphoneCall *call=linphone_core_get_current_call(lc);
4616         lc->video_window_id=id;
4617         if (call!=NULL && call->videostream){
4618                 video_stream_set_native_window_id(call->videostream,id);
4619         }
4620 #endif
4621 }
4622
4623 /**
4624  * Returns the native window handle of the video preview window, casted as an unsigned long.
4625  *
4626  * @ingroup media_parameters
4627 **/
4628 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4629 #ifdef VIDEO_ENABLED
4630         LinphoneCall *call=linphone_core_get_current_call (lc);
4631         if (call && call->videostream)
4632                 return video_stream_get_native_preview_window_id(call->videostream);
4633         if (lc->previewstream)
4634                 return video_preview_get_native_window_id(lc->previewstream);
4635 #endif
4636         return lc->preview_window_id;
4637 }
4638
4639 /**
4640  * @ingroup media_parameters
4641  * Set the native window id where the preview video (local camera) is to be displayed.
4642  * This has to be used in conjonction with linphone_core_use_preview_window().
4643  * If not set the core will create its own window.
4644 **/
4645 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4646         lc->preview_window_id=id;
4647 #ifdef VIDEO_ENABLED
4648         LinphoneCall *call=linphone_core_get_current_call(lc);
4649         if (call!=NULL && call->videostream){
4650                 video_stream_set_native_preview_window_id(call->videostream,id);
4651         }else if (lc->previewstream){
4652                 video_preview_set_native_window_id(lc->previewstream,id);
4653         }
4654 #endif
4655 }
4656
4657 /**
4658  * Can be used to disable video showing to free XV port
4659 **/
4660 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4661 #ifdef VIDEO_ENABLED
4662         ms_error("linphone_core_show_video %d", show);
4663         LinphoneCall *call=linphone_core_get_current_call(lc);
4664         if (call!=NULL && call->videostream){
4665                 video_stream_show_video(call->videostream,show);
4666         }
4667 #endif
4668 }
4669
4670 /**
4671  * Tells the core to use a separate window for local camera preview video, instead of
4672  * inserting local view within the remote video window.
4673  *
4674 **/
4675 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4676         lc->use_preview_window=yesno;
4677 }
4678 /**
4679  * @ingroup media_parameters
4680  *returns current device orientation
4681  */
4682 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4683         return lc->device_rotation;
4684 }
4685 /**
4686  * @ingroup media_parameters
4687  * Tells the core the device current orientation. This can be used by capture filters
4688  * on mobile devices to select between portrait/landscape mode and to produce properly
4689  * oriented images. The exact meaning of the value in rotation if left to each device
4690  * specific implementations.
4691  *@param lc  object.
4692  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4693  *
4694 **/
4695 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4696 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4697         lc->device_rotation = rotation;
4698 #ifdef VIDEO_ENABLED
4699         LinphoneCall *call=linphone_core_get_current_call(lc);
4700         if (call!=NULL && call->videostream){
4701                 video_stream_set_device_rotation(call->videostream,rotation);
4702         }
4703 #endif
4704 }
4705
4706 static MSVideoSizeDef supported_resolutions[]={
4707 #ifdef ENABLE_HD
4708         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4709         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4710 #endif
4711         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4712         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4713         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4714         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4715         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4716         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4717         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4718         {       {0,0}                   ,       NULL    }
4719 };
4720
4721 /**
4722  * Returns the zero terminated table of supported video resolutions.
4723  *
4724  * @ingroup media_parameters
4725 **/
4726 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4727         return supported_resolutions;
4728 }
4729
4730 static MSVideoSize video_size_get_by_name(const char *name){
4731         MSVideoSizeDef *pdef=supported_resolutions;
4732         MSVideoSize null_vsize={0,0};
4733         for(;pdef->name!=NULL;pdef++){
4734                 if (strcasecmp(name,pdef->name)==0){
4735                         return pdef->vsize;
4736                 }
4737         }
4738         ms_warning("Video resolution %s is not supported in linphone.",name);
4739         return null_vsize;
4740 }
4741
4742 static const char *video_size_get_name(MSVideoSize vsize){
4743         MSVideoSizeDef *pdef=supported_resolutions;
4744         for(;pdef->name!=NULL;pdef++){
4745                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4746                         return pdef->name;
4747                 }
4748         }
4749         return NULL;
4750 }
4751
4752 static bool_t video_size_supported(MSVideoSize vsize){
4753         if (video_size_get_name(vsize)) return TRUE;
4754         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4755         return FALSE;
4756 }
4757
4758 /**
4759  * Sets the preferred video size.
4760  *
4761  * @ingroup media_parameters
4762  * This applies only to the stream that is captured and sent to the remote party,
4763  * since we accept all standard video size on the receive path.
4764 **/
4765 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4766         if (video_size_supported(vsize)){
4767                 MSVideoSize oldvsize=lc->video_conf.vsize;
4768                 lc->video_conf.vsize=vsize;
4769                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4770                         toggle_video_preview(lc,FALSE);
4771                         toggle_video_preview(lc,TRUE);
4772                 }
4773                 if ( linphone_core_ready(lc))
4774                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4775         }
4776 }
4777
4778 /**
4779  * Sets the preferred video size by its name.
4780  *
4781  * @ingroup media_parameters
4782  * This is identical to linphone_core_set_preferred_video_size() except
4783  * that it takes the name of the video resolution as input.
4784  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4785 **/
4786 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4787         MSVideoSize vsize=video_size_get_by_name(name);
4788         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4789         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4790         else linphone_core_set_preferred_video_size(lc,default_vsize);
4791 }
4792
4793 /**
4794  * Returns the current preferred video size for sending.
4795  *
4796  * @ingroup media_parameters
4797 **/
4798 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4799         return lc->video_conf.vsize;
4800 }
4801
4802 /**
4803  * Ask the core to stream audio from and to files, instead of using the soundcard.
4804 **/
4805 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4806         lc->use_files=yesno;
4807 }
4808
4809 /**
4810  * Sets a wav file to be played when putting somebody on hold,
4811  * or when files are used instead of soundcards (see linphone_core_use_files()).
4812  *
4813  * The file must be a 16 bit linear wav file.
4814 **/
4815 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4816         LinphoneCall *call=linphone_core_get_current_call(lc);
4817         if (lc->play_file!=NULL){
4818                 ms_free(lc->play_file);
4819                 lc->play_file=NULL;
4820         }
4821         if (file!=NULL) {
4822                 lc->play_file=ms_strdup(file);
4823                 if (call && call->audiostream && call->audiostream->ms.ticker)
4824                         audio_stream_play(call->audiostream,file);
4825         }
4826 }
4827
4828
4829 /**
4830  * Sets a wav file where incoming stream is to be recorded,
4831  * when files are used instead of soundcards (see linphone_core_use_files()).
4832  *
4833  * This feature is different from call recording (linphone_call_params_set_record_file())
4834  * The file will be a 16 bit linear wav file.
4835 **/
4836 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4837         LinphoneCall *call=linphone_core_get_current_call(lc);
4838         if (lc->rec_file!=NULL){
4839                 ms_free(lc->rec_file);
4840                 lc->rec_file=NULL;
4841         }
4842         if (file!=NULL) {
4843                 lc->rec_file=ms_strdup(file);
4844                 if (call && call->audiostream)
4845                         audio_stream_record(call->audiostream,file);
4846         }
4847 }
4848
4849
4850 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4851         LinphoneCall *call=linphone_core_get_current_call (lc);
4852         AudioStream *stream=NULL;
4853         if (call){
4854                 stream=call->audiostream;
4855         }else if (linphone_core_is_in_conference(lc)){
4856                 stream=lc->conf_ctx.local_participant;
4857         }
4858         if (stream){
4859                 return stream->dtmfgen;
4860         }
4861         if (lc->ringstream==NULL){
4862                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4863                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4864                 if (ringcard == NULL)
4865                         return NULL;
4866
4867                 lc->ringstream=ring_start(NULL,0,ringcard);
4868                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4869                 lc->dmfs_playing_start_time=time(NULL);
4870         }else{
4871                 if (lc->dmfs_playing_start_time!=0)
4872                         lc->dmfs_playing_start_time=time(NULL);
4873         }
4874         return lc->ringstream->gendtmf;
4875 }
4876
4877 /**
4878  * @ingroup media_parameters
4879  * Plays a dtmf sound to the local user.
4880  * @param lc #LinphoneCore
4881  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4882  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4883 **/
4884 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4885         MSFilter *f=get_dtmf_gen(lc);
4886         if (f==NULL){
4887                 ms_error("No dtmf generator at this time !");
4888                 return;
4889         }
4890
4891         if (duration_ms>0)
4892                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4893         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4894 }
4895
4896 /**
4897  * @ingroup media_parameters
4898  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4899  * @param lc #LinphoneCore
4900 **/
4901 void linphone_core_play_tone(LinphoneCore *lc){
4902         MSFilter *f=get_dtmf_gen(lc);
4903         MSDtmfGenCustomTone def;
4904         if (f==NULL){
4905                 ms_error("No dtmf generator at this time !");
4906                 return;
4907         }
4908         def.duration=300;
4909         def.frequency=500;
4910         def.amplitude=1;
4911         def.interval=2000;
4912         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4913 }
4914
4915 /**
4916  * @ingroup media_parameters
4917  *
4918  * Stops playing a dtmf started by linphone_core_play_dtmf().
4919 **/
4920 void linphone_core_stop_dtmf(LinphoneCore *lc){
4921         MSFilter *f=get_dtmf_gen(lc);
4922         if (f!=NULL)
4923                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4924 }
4925
4926
4927
4928 /**
4929  * Retrieves the user pointer that was given to linphone_core_new()
4930  *
4931  * @ingroup initializing
4932 **/
4933 void *linphone_core_get_user_data(LinphoneCore *lc){
4934         return lc->data;
4935 }
4936
4937
4938 /**
4939  * Associate a user pointer to the linphone core.
4940  *
4941  * @ingroup initializing
4942 **/
4943 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4944         lc->data=userdata;
4945 }
4946
4947 int linphone_core_get_mtu(const LinphoneCore *lc){
4948         return lc->net_conf.mtu;
4949 }
4950
4951 /**
4952  * Sets the maximum transmission unit size in bytes.
4953  * This information is useful for sending RTP packets.
4954  * Default value is 1500.
4955  *
4956  * @ingroup media_parameters
4957 **/
4958 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4959         lc->net_conf.mtu=mtu;
4960         if (mtu>0){
4961                 if (mtu<500){
4962                         ms_error("MTU too small !");
4963                         mtu=500;
4964                 }
4965                 ms_set_mtu(mtu);
4966                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4967         }else ms_set_mtu(0);//use mediastreamer2 default value
4968 }
4969
4970 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4971         lc->wait_cb=cb;
4972         lc->wait_ctx=user_context;
4973 }
4974
4975 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4976         if (lc->wait_cb){
4977                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4978         }
4979 }
4980
4981 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4982         if (lc->wait_cb){
4983                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4984         }else{
4985 #ifdef WIN32
4986                 Sleep(50000);
4987 #else
4988                 usleep(50000);
4989 #endif
4990         }
4991 }
4992
4993 void linphone_core_stop_waiting(LinphoneCore *lc){
4994         if (lc->wait_cb){
4995                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4996         }
4997 }
4998
4999 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
5000         lc->rtptf=factories;
5001 }
5002
5003 /**
5004  * Retrieve RTP statistics regarding current call.
5005  * @param local RTP statistics computed locally.
5006  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
5007  *
5008  * @note Remote RTP statistics is not implemented yet.
5009  *
5010  * @returns 0 or -1 if no call is running.
5011 **/
5012
5013 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
5014         LinphoneCall *call=linphone_core_get_current_call (lc);
5015         if (call!=NULL){
5016                 if (call->audiostream!=NULL){
5017                         memset(remote,0,sizeof(*remote));
5018                         audio_stream_get_local_rtp_stats (call->audiostream,local);
5019                         return 0;
5020                 }
5021         }
5022         return -1;
5023 }
5024
5025 void net_config_uninit(LinphoneCore *lc)
5026 {
5027         net_config_t *config=&lc->net_conf;
5028
5029         if (config->stun_server!=NULL){
5030                 ms_free(lc->net_conf.stun_server);
5031         }
5032         if (config->nat_address!=NULL){
5033                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
5034                 ms_free(lc->net_conf.nat_address);
5035         }
5036         if (lc->net_conf.nat_address_ip !=NULL){
5037                 ms_free(lc->net_conf.nat_address_ip);
5038         }
5039         lp_config_set_int(lc->config,"net","mtu",config->mtu);
5040 }
5041
5042
5043 void sip_config_uninit(LinphoneCore *lc)
5044 {
5045         MSList *elem;
5046         int i;
5047         sip_config_t *config=&lc->sip_conf;
5048
5049         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
5050         lp_config_set_string(lc->config,"sip","contact",config->contact);
5051         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
5052         lp_config_set_int(lc->config,"sip","in_call_timeout",config->in_call_timeout);
5053         lp_config_set_int(lc->config,"sip","delayed_timeout",config->delayed_timeout);
5054         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
5055         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
5056         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
5057         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
5058         lp_config_set_int(lc->config,"sip","register_only_when_upnp_is_ok",config->register_only_when_upnp_is_ok);
5059
5060
5061
5062         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
5063                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
5064                 linphone_proxy_config_edit(cfg);        /* to unregister */
5065         }
5066
5067         for (i=0;i<20;i++){
5068                 sal_iterate(lc->sal);
5069 #ifndef WIN32
5070                 usleep(100000);
5071 #else
5072                 Sleep(100);
5073 #endif
5074         }
5075
5076         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
5077         ms_list_free(config->proxies);
5078         config->proxies=NULL;
5079
5080         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
5081
5082         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
5083         ms_list_free(lc->auth_info);
5084         lc->auth_info=NULL;
5085
5086         sal_uninit(lc->sal);
5087         lc->sal=NULL;
5088
5089         if (lc->sip_conf.guessed_contact)
5090                 ms_free(lc->sip_conf.guessed_contact);
5091         if (config->contact)
5092                 ms_free(config->contact);
5093
5094 }
5095
5096 void rtp_config_uninit(LinphoneCore *lc)
5097 {
5098         rtp_config_t *config=&lc->rtp_conf;
5099         if (config->audio_rtp_min_port == config->audio_rtp_max_port) {
5100                 lp_config_set_int(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port);
5101         } else {
5102                 lp_config_set_range(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port, config->audio_rtp_max_port);
5103         }
5104         if (config->video_rtp_min_port == config->video_rtp_max_port) {
5105                 lp_config_set_int(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port);
5106         } else {
5107                 lp_config_set_range(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port, config->video_rtp_max_port);
5108         }
5109         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
5110         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
5111         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
5112         lp_config_set_int(lc->config,"rtp","audio_adaptive_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
5113         lp_config_set_int(lc->config,"rtp","video_adaptive_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
5114 }
5115
5116 static void sound_config_uninit(LinphoneCore *lc)
5117 {
5118         sound_config_t *config=&lc->sound_conf;
5119         ms_free(config->cards);
5120
5121         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
5122         lp_config_set_float(lc->config,"sound","playback_gain_db",config->soft_play_lev);
5123         lp_config_set_float(lc->config,"sound","mic_gain_db",config->soft_mic_lev);
5124
5125         if (config->local_ring) ms_free(config->local_ring);
5126         if (config->remote_ring) ms_free(config->remote_ring);
5127         ms_snd_card_manager_destroy();
5128 }
5129
5130 static void video_config_uninit(LinphoneCore *lc)
5131 {
5132         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
5133         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
5134         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
5135         if (lc->video_conf.cams)
5136                 ms_free(lc->video_conf.cams);
5137 }
5138
5139 void _linphone_core_codec_config_write(LinphoneCore *lc){
5140         if (linphone_core_ready(lc)){
5141                 PayloadType *pt;
5142                 codecs_config_t *config=&lc->codecs_conf;
5143                 MSList *node;
5144                 char key[50];
5145                 int index;
5146                 index=0;
5147                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
5148                         pt=(PayloadType*)(node->data);
5149                         sprintf(key,"audio_codec_%i",index);
5150                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5151                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5152                         lp_config_set_int(lc->config,key,"channels",pt->channels);
5153                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5154                         index++;
5155                 }
5156                 sprintf(key,"audio_codec_%i",index);
5157                 lp_config_clean_section (lc->config,key);
5158
5159                 index=0;
5160                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
5161                         pt=(PayloadType*)(node->data);
5162                         sprintf(key,"video_codec_%i",index);
5163                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5164                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5165                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5166                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
5167                         index++;
5168                 }
5169                 sprintf(key,"video_codec_%i",index);
5170                 lp_config_clean_section (lc->config,key);
5171         }
5172 }
5173
5174 static void codecs_config_uninit(LinphoneCore *lc)
5175 {
5176         _linphone_core_codec_config_write(lc);
5177         ms_list_free(lc->codecs_conf.audio_codecs);
5178         ms_list_free(lc->codecs_conf.video_codecs);
5179 }
5180
5181 void ui_config_uninit(LinphoneCore* lc)
5182 {
5183         if (lc->friends){
5184                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
5185                 ms_list_free(lc->friends);
5186                 lc->friends=NULL;
5187         }
5188 }
5189
5190 /**
5191  * Returns the LpConfig object used to manage the storage (config) file.
5192  *
5193  * @ingroup misc
5194  * The application can use the LpConfig object to insert its own private
5195  * sections and pairs of key=value in the configuration file.
5196  *
5197 **/
5198 LpConfig *linphone_core_get_config(LinphoneCore *lc){
5199         return lc->config;
5200 }
5201
5202 static void linphone_core_uninit(LinphoneCore *lc)
5203 {
5204         linphone_core_free_hooks(lc);
5205         while(lc->calls)
5206         {
5207                 LinphoneCall *the_call = lc->calls->data;
5208                 linphone_core_terminate_call(lc,the_call);
5209                 linphone_core_iterate(lc);
5210 #ifdef WIN32
5211                 Sleep(50000);
5212 #else
5213                 usleep(50000);
5214 #endif
5215         }
5216 #ifdef BUILD_UPNP
5217         if(lc->upnp != NULL) {
5218                 linphone_upnp_context_destroy(lc->upnp);
5219                 lc->upnp = NULL;
5220         }
5221 #endif //BUILD_UPNP
5222
5223         if (lc->friends)
5224                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
5225         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
5226 #ifdef VIDEO_ENABLED
5227         if (lc->previewstream!=NULL){
5228                 video_preview_stop(lc->previewstream);
5229                 lc->previewstream=NULL;
5230         }
5231 #endif
5232         ms_event_queue_destroy(lc->msevq);
5233         lc->msevq=NULL;
5234         /* save all config */
5235         net_config_uninit(lc);
5236         rtp_config_uninit(lc);
5237         if (lc->ringstream) ring_stop(lc->ringstream);
5238         sound_config_uninit(lc);
5239         video_config_uninit(lc);
5240         codecs_config_uninit(lc);
5241         ui_config_uninit(lc);
5242         sip_config_uninit(lc);
5243         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
5244         lp_config_destroy(lc->config);
5245         lc->config = NULL; /* Mark the config as NULL to block further calls */
5246         sip_setup_unregister_all();
5247
5248         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
5249         lc->call_logs=ms_list_free(lc->call_logs);
5250
5251         ms_list_for_each(lc->last_recv_msg_ids,ms_free);
5252         lc->last_recv_msg_ids=ms_list_free(lc->last_recv_msg_ids);
5253
5254         // Free struct variable
5255         if(lc->zrtp_secrets_cache != NULL) {
5256                 ms_free(lc->zrtp_secrets_cache);
5257         }
5258         if(lc->play_file!=NULL){
5259                 ms_free(lc->play_file);
5260         }
5261         if(lc->rec_file!=NULL){
5262                 ms_free(lc->rec_file);
5263         }
5264
5265         linphone_core_free_payload_types(lc);
5266
5267         linphone_core_message_storage_close(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
5292         if(!isReachable) {
5293                 sal_reset_transports(lc->sal);
5294         }
5295 #ifdef BUILD_UPNP
5296         if(lc->upnp == NULL) {
5297                 if(isReachable && lc->net_conf.firewall_policy == LinphonePolicyUseUpnp) {
5298                         lc->upnp = linphone_upnp_context_new(lc);
5299                 }
5300         } else {
5301                 if(!isReachable && lc->net_conf.firewall_policy == LinphonePolicyUseUpnp) {
5302                         linphone_upnp_context_destroy(lc->upnp);
5303                         lc->upnp = NULL;
5304                 }
5305         }
5306 #endif
5307 }
5308
5309 void linphone_core_refresh_registers(LinphoneCore* lc) {
5310         const MSList *elem;
5311         if (!lc->network_reachable) {
5312                 ms_warning("Refresh register operation not available (network unreachable)");
5313                 return;
5314         }
5315         elem=linphone_core_get_proxy_config_list(lc);
5316         for(;elem!=NULL;elem=elem->next){
5317                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5318                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
5319                         linphone_proxy_config_refresh_register(cfg);
5320                 }
5321         }
5322 }
5323
5324 void __linphone_core_invalidate_registers(LinphoneCore* lc){
5325         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5326         for(;elem!=NULL;elem=elem->next){
5327                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5328                 if (linphone_proxy_config_register_enabled(cfg)) {
5329                         linphone_proxy_config_edit(cfg);
5330                         linphone_proxy_config_done(cfg);
5331                 }
5332         }
5333 }
5334
5335 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
5336         //first disable automatic mode
5337         if (lc->auto_net_state_mon) {
5338                 ms_message("Disabling automatic network state monitoring");
5339                 lc->auto_net_state_mon=FALSE;
5340         }
5341         set_network_reachable(lc,isReachable, ms_time(NULL));
5342 }
5343
5344 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
5345         return lc->network_reachable;
5346 }
5347 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
5348         return sal_get_socket(lc->sal);
5349 }
5350 /**
5351  * Destroys a LinphoneCore
5352  *
5353  * @ingroup initializing
5354 **/
5355 void linphone_core_destroy(LinphoneCore *lc){
5356         linphone_core_uninit(lc);
5357         ms_free(lc);
5358 }
5359 /**
5360  * Get the number of Call
5361  *
5362  * @ingroup call_control
5363 **/
5364 int linphone_core_get_calls_nb(const LinphoneCore *lc){
5365         return  ms_list_size(lc->calls);;
5366 }
5367
5368 /**
5369  * Check if we do not have exceed the number of simultaneous call
5370  *
5371  * @ingroup call_control
5372 **/
5373 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
5374 {
5375         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
5376                 return TRUE;
5377         ms_message("Maximum amount of simultaneous calls reached !");
5378         return FALSE;
5379 }
5380
5381
5382 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
5383 {
5384         if(linphone_core_can_we_add_call(lc))
5385         {
5386                 lc->calls = ms_list_append(lc->calls,call);
5387                 return 0;
5388         }
5389         return -1;
5390 }
5391
5392 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
5393 {
5394         MSList *it;
5395         MSList *the_calls = lc->calls;
5396
5397         it=ms_list_find(the_calls,call);
5398         if (it)
5399         {
5400                 the_calls = ms_list_remove_link(the_calls,it);
5401         }
5402         else
5403         {
5404                 ms_warning("could not find the call into the list\n");
5405                 return -1;
5406         }
5407         lc->calls = the_calls;
5408         return 0;
5409 }
5410
5411 /**
5412  * Specifiies a ring back tone to be played to far end during incoming calls.
5413 **/
5414 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
5415         if (lc->sound_conf.ringback_tone){
5416                 ms_free(lc->sound_conf.ringback_tone);
5417                 lc->sound_conf.ringback_tone=NULL;
5418         }
5419         if (file)
5420                 lc->sound_conf.ringback_tone=ms_strdup(file);
5421 }
5422
5423 /**
5424  * Returns the ring back tone played to far end during incoming calls.
5425 **/
5426 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
5427         return lc->sound_conf.ringback_tone;
5428 }
5429
5430 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
5431         const MSList *elem;
5432         for(elem=from;elem!=NULL;elem=elem->next){
5433                 PayloadType *pt=(PayloadType*)elem->data;
5434                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
5435                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
5436                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
5437                         return pt;
5438                 }
5439         }
5440         return NULL;
5441 }
5442
5443
5444 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
5445         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
5446         if (result)  {
5447                 return result;
5448         } else {
5449                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
5450                 if (result) {
5451                         return result;
5452                 }
5453         }
5454         /*not found*/
5455         return NULL;
5456 }
5457
5458 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
5459         switch(gs){
5460                 case LinphoneGlobalOff:
5461                         return "LinphoneGlobalOff";
5462                 break;
5463                 case LinphoneGlobalOn:
5464                         return "LinphoneGlobalOn";
5465                 break;
5466                 case LinphoneGlobalStartup:
5467                         return "LinphoneGlobalStartup";
5468                 break;
5469                 case LinphoneGlobalShutdown:
5470                         return "LinphoneGlobalShutdown";
5471                 break;
5472         }
5473         return NULL;
5474 }
5475
5476 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
5477         return lc->state;
5478 }
5479
5480 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
5481         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
5482         linphone_core_init_default_params(lc, p);
5483         return p;
5484 }
5485
5486 const char *linphone_reason_to_string(LinphoneReason err){
5487         switch(err){
5488                 case LinphoneReasonNone:
5489                         return "No error";
5490                 case LinphoneReasonNoResponse:
5491                         return "No response";
5492                 case LinphoneReasonBadCredentials:
5493                         return "Bad credentials";
5494                 case LinphoneReasonDeclined:
5495                         return "Call declined";
5496                 case LinphoneReasonNotFound:
5497                         return "User not found";
5498                 case LinphoneReasonNotAnswered:
5499                         return "Not answered";
5500                 case LinphoneReasonBusy:
5501                         return "Busy";
5502         }
5503         return "unknown error";
5504 }
5505
5506 const char *linphone_error_to_string(LinphoneReason err){
5507         return linphone_reason_to_string(err);
5508 }
5509 /**
5510  * Enables signaling keep alive
5511  */
5512 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
5513 #ifdef BUILD_UPNP
5514         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp) {
5515                 enable = FALSE;
5516         }
5517 #endif //BUILD_UPNP
5518         if (enable > 0) {
5519                 sal_use_tcp_tls_keepalive(lc->sal,lc->sip_conf.tcp_tls_keepalive);
5520                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
5521         } else {
5522                 sal_set_keepalive_period(lc->sal,0);
5523         }
5524 }
5525 /**
5526  * Is signaling keep alive enabled
5527  */
5528 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
5529         return sal_get_keepalive_period(lc->sal) > 0;
5530 }
5531
5532 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
5533         get_dtmf_gen(lc); /*make sure ring stream is started*/
5534         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
5535 }
5536
5537 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
5538         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
5539                 ring_stop(lc->ringstream);
5540                 lc->ringstream=NULL;
5541         }
5542 }
5543
5544 int linphone_core_get_max_calls(LinphoneCore *lc) {
5545         return lc->max_calls;
5546 }
5547 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
5548         lc->max_calls=max;
5549 }
5550
5551 typedef struct Hook{
5552         LinphoneCoreIterateHook fun;
5553         void *data;
5554 }Hook;
5555
5556 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
5557         Hook *h=ms_new(Hook,1);
5558         h->fun=hook;
5559         h->data=hook_data;
5560         return h;
5561 }
5562
5563 static void hook_invoke(Hook *h){
5564         h->fun(h->data);
5565 }
5566
5567 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5568         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
5569 }
5570
5571 static void linphone_core_run_hooks(LinphoneCore *lc){
5572         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
5573 }
5574
5575 static void linphone_core_free_hooks(LinphoneCore *lc){
5576         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
5577         ms_list_free(lc->hooks);
5578         lc->hooks=NULL;
5579 }
5580
5581 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5582         MSList *elem;
5583         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
5584                 Hook *h=(Hook*)elem->data;
5585                 if (h->fun==hook && h->data==hook_data){
5586                         lc->hooks = ms_list_remove_link(lc->hooks,elem);
5587                         ms_free(h);
5588                         return;
5589                 }
5590         }
5591         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
5592 }
5593
5594 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
5595         if (lc->zrtp_secrets_cache != NULL) {
5596                 ms_free(lc->zrtp_secrets_cache);
5597         }
5598         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
5599 }
5600
5601 const char *linphone_core_get_zrtp_secrets_file(LinphoneCore *lc){
5602         return lc->zrtp_secrets_cache;
5603 }
5604
5605 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
5606         if (uri == NULL) return NULL;
5607         MSList *calls=lc->calls;
5608         while(calls) {
5609                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5610                 calls=calls->next;
5611                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5612                 char *current_uri=linphone_address_as_string_uri_only(address);
5613                 if (strcmp(uri,current_uri)==0) {
5614                         ms_free(current_uri);
5615                         return c;
5616                 } else {
5617                         ms_free(current_uri);
5618                 }
5619         }
5620         return NULL;
5621 }
5622
5623
5624 /**
5625  * Check if a call will need the sound resources.
5626  *
5627  * @ingroup call_control
5628  * @param lc The LinphoneCore
5629 **/
5630 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5631         MSList *calls=lc->calls;
5632         while(calls) {
5633                 LinphoneCall *c=(LinphoneCall*)calls->data;
5634                 calls=calls->next;
5635                 switch (c->state) {
5636                         case LinphoneCallOutgoingInit:
5637                         case LinphoneCallOutgoingProgress:
5638                         case LinphoneCallOutgoingRinging:
5639                         case LinphoneCallOutgoingEarlyMedia:
5640                         case LinphoneCallConnected:
5641                         case LinphoneCallRefered:
5642                         case LinphoneCallIncomingEarlyMedia:
5643                         case LinphoneCallUpdating:
5644                                 return TRUE;
5645                         default:
5646                                 break;
5647                 }
5648         }
5649         return FALSE;
5650 }
5651
5652 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5653         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5654 }
5655
5656 /**
5657  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5658 **/
5659 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5660         switch(menc){
5661                 case LinphoneMediaEncryptionSRTP:
5662                         return ortp_srtp_supported();
5663                 case LinphoneMediaEncryptionZRTP:
5664                         return ortp_zrtp_available();
5665                 case LinphoneMediaEncryptionNone:
5666                         return TRUE;
5667         }
5668         return FALSE;
5669 }
5670
5671 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5672         const char *type="none";
5673         int ret=0;
5674         if (menc == LinphoneMediaEncryptionSRTP){
5675                 if (!ortp_srtp_supported()){
5676                         ms_warning("SRTP not supported by library.");
5677                         type="none";
5678                         ret=-1;
5679                 }else type="srtp";
5680         }else if (menc == LinphoneMediaEncryptionZRTP){
5681                 if (!ortp_zrtp_available()){
5682                         ms_warning("ZRTP not supported by library.");
5683                         type="none";
5684                         ret=-1;
5685                 }else type="zrtp";
5686         }
5687         lp_config_set_string(lc->config,"sip","media_encryption",type);
5688         return ret;
5689 }
5690
5691 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5692         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5693
5694         if (menc == NULL)
5695                 return LinphoneMediaEncryptionNone;
5696         else if (strcmp(menc, "srtp")==0)
5697                 return LinphoneMediaEncryptionSRTP;
5698         else if (strcmp(menc, "zrtp")==0)
5699                 return LinphoneMediaEncryptionZRTP;
5700         else
5701                 return LinphoneMediaEncryptionNone;
5702 }
5703
5704 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5705         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5706 }
5707
5708 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5709         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5710 }
5711
5712 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5713         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5714         params->media_encryption=linphone_core_get_media_encryption(lc);
5715         params->in_conference=FALSE;
5716 }
5717
5718 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5719         if (lc->device_id) ms_free(lc->device_id);
5720         lc->device_id=ms_strdup(device_id);
5721 }
5722 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5723         return lc->device_id;
5724 }
5725
5726 /**
5727  * Set the DSCP field for SIP signaling channel.
5728  *
5729  * @ingroup network_parameters
5730  * * The DSCP defines the quality of service in IP packets.
5731  *
5732 **/
5733 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5734         sal_set_dscp(lc->sal,dscp);
5735         if (linphone_core_ready(lc)){
5736                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5737                 apply_transports(lc);
5738         }
5739 }
5740
5741 /**
5742  * Get the DSCP field for SIP signaling channel.
5743  *
5744  * @ingroup network_parameters
5745  * * The DSCP defines the quality of service in IP packets.
5746  *
5747 **/
5748 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5749         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5750 }
5751
5752 /**
5753  * Set the DSCP field for outgoing audio streams.
5754  *
5755  * @ingroup network_parameters
5756  * The DSCP defines the quality of service in IP packets.
5757  *
5758 **/
5759 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5760         if (linphone_core_ready(lc))
5761                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5762 }
5763
5764 /**
5765  * Get the DSCP field for outgoing audio streams.
5766  *
5767  * @ingroup network_parameters
5768  * The DSCP defines the quality of service in IP packets.
5769  *
5770 **/
5771 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5772         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5773 }
5774
5775 /**
5776  * Set 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 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5783         if (linphone_core_ready(lc))
5784                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5785
5786 }
5787
5788 /**
5789  * Get the DSCP field for outgoing video streams.
5790  *
5791  * @ingroup network_parameters
5792  * The DSCP defines the quality of service in IP packets.
5793  *
5794 **/
5795 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5796         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5797 }
5798
5799
5800 /**
5801  * Sets the database filename where chat messages will be stored.
5802  * If the file does not exist, it will be created.
5803  * @ingroup initializing
5804  * @param lc the linphone core
5805  * @param path filesystem path
5806 **/
5807 void linphone_core_set_chat_database_path(LinphoneCore *lc, const char *path){
5808         if (lc->chat_db_file){
5809                 ms_free(lc->chat_db_file);
5810                 lc->chat_db_file=NULL;
5811         }
5812         if (path) {
5813                 lc->chat_db_file=ms_strdup(path);
5814                 linphone_core_message_storage_init(lc);
5815         }
5816 }
5817
5818