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