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         tmp=lp_config_get_int(lc->config,"sip","delayed_timeout",4);
 671         linphone_core_set_delayed_timeout(lc,tmp);
 672
 673         /* get proxies config */
 674         for(i=0;; i++){
 675                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 676                 if (cfg!=NULL){
 677                         linphone_core_add_proxy_config(lc,cfg);
 678                 }else{
 679                         break;
 680                 }
 681         }
 682         /* get the default proxy */
 683         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 684         linphone_core_set_default_proxy_index(lc,tmp);
 685
 686         /* read authentication information */
 687         for(i=0;; i++){
 688                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 689                 if (ai!=NULL){
 690                         linphone_core_add_auth_info(lc,ai);
 691                         linphone_auth_info_destroy(ai);
 692                 }else{
 693                         break;
 694                 }
 695         }
 696         /*this is to filter out unsupported encryption schemes*/
 697         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 698
 699         /*for tuning or test*/
 700         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 701         lc->sip_conf.register_only_when_network_is_up=
 702                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 703         lc->sip_conf.register_only_when_upnp_is_ok=
 704                 lp_config_get_int(lc->config,"sip","register_only_when_upnp_is_ok",1);
 705         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 706         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
 707         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
 708         lc->sip_conf.tcp_tls_keepalive=lp_config_get_int(lc->config,"sip","tcp_tls_keepalive",0);
 709         linphone_core_enable_keep_alive(lc, (lc->sip_conf.keepalive_period > 0));
 710         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
 711         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
 712         sal_use_dates(lc->sal,lp_config_get_int(lc->config,"sip","put_date",0));
 713 }
 714
 715 static void rtp_config_read(LinphoneCore *lc)
 716 {
 717         int min_port, max_port;
 718         int jitt_comp;
 719         int nortp_timeout;
 720         bool_t rtp_no_xmit_on_audio_mute;
 721         bool_t adaptive_jitt_comp_enabled;
 722
 723         if (lp_config_get_range(lc->config, "rtp", "audio_rtp_port", &min_port, &max_port, 7078, 7078) == TRUE) {
 724                 if (min_port <= 0) min_port = 1;
 725                 if (max_port > 65535) max_port = 65535;
 726                 linphone_core_set_audio_port_range(lc, min_port, max_port);
 727         } else {
 728                 min_port = lp_config_get_int(lc->config, "rtp", "audio_rtp_port", 7078);
 729                 linphone_core_set_audio_port(lc, min_port);
 730         }
 731
 732         if (lp_config_get_range(lc->config, "rtp", "video_rtp_port", &min_port, &max_port, 9078, 9078) == TRUE) {
 733                 if (min_port <= 0) min_port = 1;
 734                 if (max_port > 65535) max_port = 65535;
 735                 linphone_core_set_video_port_range(lc, min_port, max_port);
 736         } else {
 737                 min_port = lp_config_get_int(lc->config, "rtp", "video_rtp_port", 9078);
 738                 linphone_core_set_video_port(lc, min_port);
 739         }
 740
 741         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 742         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 743         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 744         if (jitt_comp==0) jitt_comp=60;
 745         linphone_core_set_video_jittcomp(lc,jitt_comp);
 746         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 747         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 748         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
 749         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
 750         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
 751         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 752         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
 753         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 754 }
 755
 756 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 757         PayloadType *candidate=NULL;
 758         int i;
 759         PayloadType *it;
 760         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 761                 it=rtp_profile_get_payload(prof,i);
 762                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 763                         && (clock_rate==it->clock_rate || clock_rate<=0)
 764                         && (channels==it->channels || channels<=0) ){
 765                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 766                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 767                                 /*exact match*/
 768                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 769                                 return it;
 770                         }else {
 771                                 if (candidate){
 772                                         if (it->recv_fmtp==NULL) candidate=it;
 773                                 }else candidate=it;
 774                         }
 775                 }
 776         }
 777         if (candidate && recv_fmtp){
 778                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 779         }
 780         return candidate;
 781 }
 782
 783 static bool_t get_codec(LinphoneCore *lc, const char* type, int index, PayloadType **ret){
 784         char codeckey[50];
 785         const char *mime,*fmtp;
 786         int rate,channels,enabled;
 787         PayloadType *pt;
 788         LpConfig *config=lc->config;
 789
 790         *ret=NULL;
 791         snprintf(codeckey,50,"%s_%i",type,index);
 792         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 793         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 794
 795         rate=lp_config_get_int(config,codeckey,"rate",8000);
 796         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 797         channels=lp_config_get_int(config,codeckey,"channels",0);
 798         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 799         pt=find_payload(lc->default_profile,mime,rate,channels,fmtp);
 800         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 801         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 802         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 803                         mime,rate,fmtp ? fmtp : "");
 804         *ret=pt;
 805         return TRUE;
 806 }
 807
 808 #define RANK_END 10000
 809
 810 typedef struct codec_desc{
 811         const char *name;
 812         int rate;
 813 }codec_desc_t;
 814
 815 static codec_desc_t codec_pref_order[]={
 816         {"SILK", 16000},
 817         {"speex", 16000},
 818         {"speex", 8000},
 819         {"pcmu",8000},
 820         {"pcma",8000},
 821         {"VP8",90000},
 822         {"H264",90000},
 823         {"MP4V-ES",90000},
 824         {NULL,0}
 825 };
 826
 827 static int find_codec_rank(const char *mime, int clock_rate){
 828         int i;
 829         for(i=0;codec_pref_order[i].name!=NULL;++i){
 830                 if (strcasecmp(codec_pref_order[i].name,mime)==0 && clock_rate==codec_pref_order[i].rate)
 831                         return i;
 832         }
 833         return RANK_END;
 834 }
 835
 836 static int codec_compare(const PayloadType *a, const PayloadType *b){
 837         int ra,rb;
 838         ra=find_codec_rank(a->mime_type,a->clock_rate);
 839         rb=find_codec_rank(b->mime_type,b->clock_rate);
 840         if (ra>rb) return 1;
 841         if (ra<rb) return -1;
 842         return 0;
 843 }
 844
 845 static MSList *add_missing_codecs(LinphoneCore *lc, SalStreamType mtype, MSList *l){
 846         int i;
 847         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 848                 PayloadType *pt=rtp_profile_get_payload(lc->default_profile,i);
 849                 if (pt){
 850                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 851                                 pt=NULL;
 852                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 853                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 854                                 pt=NULL;
 855                         }
 856                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 857                                 if (ms_list_find(l,pt)==NULL){
 858                                         /*unranked codecs are disabled by default*/
 859                                         if (find_codec_rank(pt->mime_type, pt->clock_rate)!=RANK_END){
 860                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 861                                         }
 862                                         ms_message("Adding new codec %s/%i with fmtp %s",
 863                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 864                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 865                                 }
 866                         }
 867                 }
 868         }
 869         return l;
 870 }
 871
 872 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 873         MSList *elem;
 874         for (elem=l;elem!=NULL;elem=elem->next){
 875                 PayloadType *ept=(PayloadType*)elem->data;
 876                 if (pt==ept)
 877                         return l;
 878         }
 879         l=ms_list_append(l,pt);
 880         return l;
 881 }
 882
 883 static void codecs_config_read(LinphoneCore *lc)
 884 {
 885         int i;
 886         PayloadType *pt;
 887         MSList *audio_codecs=NULL;
 888         MSList *video_codecs=NULL;
 889         for (i=0;get_codec(lc,"audio_codec",i,&pt);i++){
 890                 if (pt){
 891                         if (!ms_filter_codec_supported(pt->mime_type)){
 892                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 893                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 894                 }
 895         }
 896         audio_codecs=add_missing_codecs(lc,SalAudio,audio_codecs);
 897         for (i=0;get_codec(lc,"video_codec",i,&pt);i++){
 898                 if (pt){
 899                         if (!ms_filter_codec_supported(pt->mime_type)){
 900                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 901                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 902                 }
 903         }
 904         video_codecs=add_missing_codecs(lc,SalVideo,video_codecs);
 905         linphone_core_set_audio_codecs(lc,audio_codecs);
 906         linphone_core_set_video_codecs(lc,video_codecs);
 907         linphone_core_update_allocated_audio_bandwidth(lc);
 908 }
 909
 910 static void build_video_devices_table(LinphoneCore *lc){
 911         const MSList *elem;
 912         int i;
 913         int ndev;
 914         const char **devices;
 915         if (lc->video_conf.cams)
 916                 ms_free(lc->video_conf.cams);
 917         /* retrieve all video devices */
 918         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 919         ndev=ms_list_size(elem);
 920         devices=ms_malloc((ndev+1)*sizeof(const char *));
 921         for (i=0;elem!=NULL;elem=elem->next,i++){
 922                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 923         }
 924         devices[ndev]=NULL;
 925         lc->video_conf.cams=devices;
 926 }
 927
 928 static void video_config_read(LinphoneCore *lc){
 929 #ifdef VIDEO_ENABLED
 930         int capture, display, self_view;
 931 #endif
 932         const char *str;
 933 #ifdef VIDEO_ENABLED
 934         LinphoneVideoPolicy vpol;
 935         memset(&vpol, 0, sizeof(LinphoneVideoPolicy));
 936 #endif
 937         build_video_devices_table(lc);
 938
 939         str=lp_config_get_string(lc->config,"video","device",NULL);
 940         if (str && str[0]==0) str=NULL;
 941         linphone_core_set_video_device(lc,str);
 942
 943         linphone_core_set_preferred_video_size_by_name(lc,
 944                 lp_config_get_string(lc->config,"video","size","cif"));
 945
 946 #ifdef VIDEO_ENABLED
 947         capture=lp_config_get_int(lc->config,"video","capture",1);
 948         display=lp_config_get_int(lc->config,"video","display",1);
 949         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 950         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 951         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 952         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 953         if(lc->video_conf.displaytype)
 954                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 955
 956         linphone_core_enable_video(lc,capture,display);
 957         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 958         linphone_core_enable_self_view(lc,self_view);
 959         linphone_core_set_video_policy(lc,&vpol);
 960 #endif
 961 }
 962
 963 static void ui_config_read(LinphoneCore *lc)
 964 {
 965         LinphoneFriend *lf;
 966         int i;
 967         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 968                 linphone_core_add_friend(lc,lf);
 969         }
 970         call_logs_read_from_config_file(lc);
 971 }
 972
 973 /*
 974 static void autoreplier_config_init(LinphoneCore *lc)
 975 {
 976         autoreplier_config_t *config=&lc->autoreplier_conf;
 977         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 978         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 979         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 980         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 981         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 982         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 983 }
 984 */
 985
 986 bool_t linphone_core_tunnel_available(void){
 987 #ifdef TUNNEL_ENABLED
 988         return TRUE;
 989 #else
 990         return FALSE;
 991 #endif
 992 }
 993
 994 /**
 995  * Enable adaptive rate control.
 996  *
 997  * @ingroup media_parameters
 998  *
 999  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
1000  * control the output bitrate of the audio and video encoders, so that we can adapt to the network conditions and
1001  * available bandwidth. Control of the audio encoder is done in case of audio-only call, and control of the video encoder is done for audio & video calls.
1002  * Adaptive rate control feature is enabled by default.
1003 **/
1004 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
1005         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
1006 }
1007
1008 /**
1009  * Returns whether adaptive rate control is enabled.
1010  *
1011  * @ingroup media_parameters
1012  *
1013  * See linphone_core_enable_adaptive_rate_control().
1014 **/
1015 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
1016         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
1017 }
1018
1019 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
1020         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
1021 }
1022
1023 /**
1024  * Sets maximum available download bandwidth
1025  *
1026  * @ingroup media_parameters
1027  *
1028  * This is IP bandwidth, in kbit/s.
1029  * This information is used signaled to other parties during
1030  * calls (within SDP messages) so that the remote end can have
1031  * sufficient knowledge to properly configure its audio & video
1032  * codec output bitrate to not overflow available bandwidth.
1033  *
1034  * @param lc the LinphoneCore object
1035  * @param bw the bandwidth in kbits/s, 0 for infinite
1036  */
1037 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
1038         lc->net_conf.download_bw=bw;
1039         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
1040 }
1041
1042 /**
1043  * Sets maximum available upload bandwidth
1044  *
1045  * @ingroup media_parameters
1046  *
1047  * This is IP bandwidth, in kbit/s.
1048  * This information is used by liblinphone together with remote
1049  * side available bandwidth signaled in SDP messages to properly
1050  * configure audio & video codec's output bitrate.
1051  *
1052  * @param lc the LinphoneCore object
1053  * @param bw the bandwidth in kbits/s, 0 for infinite
1054  */
1055 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
1056         lc->net_conf.upload_bw=bw;
1057         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
1058 }
1059
1060 /**
1061  * Retrieve the maximum available download bandwidth.
1062  *
1063  * @ingroup media_parameters
1064  *
1065  * This value was set by linphone_core_set_download_bandwidth().
1066  *
1067 **/
1068 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
1069         return lc->net_conf.download_bw;
1070 }
1071
1072 /**
1073  * Retrieve the maximum available upload bandwidth.
1074  *
1075  * @ingroup media_parameters
1076  *
1077  * This value was set by linphone_core_set_upload_bandwidth().
1078  *
1079 **/
1080 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
1081         return lc->net_conf.upload_bw;
1082 }
1083 /**
1084  * Set audio packetization time linphone expects to receive from peer.
1085  * A value of zero means that ptime is not specified.
1086  * @ingroup media_parameters
1087  */
1088 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
1089         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
1090 }
1091
1092 /**
1093  * Get audio packetization time linphone expects to receive from peer.
1094  * A value of zero means that ptime is not specified.
1095  * @ingroup media_parameters
1096  */
1097 int linphone_core_get_download_ptime(LinphoneCore *lc) {
1098         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
1099 }
1100
1101 /**
1102  * Set audio packetization time linphone will send (in absence of requirement from peer)
1103  * A value of 0 stands for the current codec default packetization time.
1104  *
1105  * @ingroup media_parameters
1106 **/
1107 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
1108         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
1109 }
1110
1111 /**
1112  * Set audio packetization time linphone will send (in absence of requirement from peer)
1113  * A value of 0 stands for the current codec default packetization time.
1114  *
1115  *
1116  * @ingroup media_parameters
1117 **/
1118 int linphone_core_get_upload_ptime(LinphoneCore *lc){
1119         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
1120 }
1121
1122
1123
1124 /**
1125  * Returns liblinphone's version as a string.
1126  *
1127  * @ingroup misc
1128  *
1129 **/
1130 const char * linphone_core_get_version(void){
1131         return liblinphone_version;
1132 }
1133
1134 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1135         PayloadType *pt;
1136         pt=payload_type_clone(const_pt);
1137         if (number==-1){
1138                 /*look for a free number */
1139                 MSList *elem;
1140                 int i;
1141                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1142                         bool_t already_assigned=FALSE;
1143                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1144                                 PayloadType *it=(PayloadType*)elem->data;
1145                                 if (payload_type_get_number(it)==i){
1146                                         already_assigned=TRUE;
1147                                         break;
1148                                 }
1149                         }
1150                         if (!already_assigned){
1151                                 number=i;
1152                                 lc->dyn_pt=i+1;
1153                                 break;
1154                         }
1155                 }
1156                 if (number==-1){
1157                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1158                 }
1159         }
1160         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1161         payload_type_set_number(pt,number);
1162         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1163         rtp_profile_set_payload(lc->default_profile,number,pt);
1164         lc->payload_types=ms_list_append(lc->payload_types,pt);
1165 }
1166
1167 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1168         RtpProfile *prof=&av_profile;
1169         int i;
1170         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1171                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1172                 if (pt){
1173                         if (payload_type_get_number(pt)!=i){
1174                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1175                         }
1176                 }
1177         }
1178 }
1179
1180 static void linphone_core_free_payload_types(LinphoneCore *lc){
1181         rtp_profile_clear_all(lc->default_profile);
1182         rtp_profile_destroy(lc->default_profile);
1183         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1184         ms_list_free(lc->payload_types);
1185         lc->payload_types=NULL;
1186 }
1187
1188 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1189         lc->state=gstate;
1190         if (lc->vtable.global_state_changed){
1191                 lc->vtable.global_state_changed(lc,gstate,message);
1192         }
1193 }
1194 static void misc_config_read (LinphoneCore *lc) {
1195         LpConfig *config=lc->config;
1196     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1197     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1198 }
1199
1200
1201
1202
1203 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1204     const char *factory_config_path, void * userdata)
1205 {
1206         ms_message("Initializing LinphoneCore %s", linphone_core_get_version());
1207         memset (lc, 0, sizeof (LinphoneCore));
1208         lc->data=userdata;
1209         lc->ringstream_autorelease=TRUE;
1210
1211         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1212
1213         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1214         ortp_init();
1215         lc->dyn_pt=96;
1216         lc->default_profile=rtp_profile_new("default profile");
1217         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1218         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1219         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1220         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1221         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1222         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1223         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1224         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1225
1226 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1227         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1228          - to workaround potential packet losses
1229          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1230          */
1231         _linphone_core_configure_resolver();
1232 #endif
1233
1234 #ifdef ENABLE_NONSTANDARD_GSM
1235         {
1236                 PayloadType *pt;
1237                 pt=payload_type_clone(&payload_type_gsm);
1238                 pt->clock_rate=11025;
1239                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1240                 pt->clock_rate=22050;
1241                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1242                 payload_type_destroy(pt);
1243         }
1244 #endif
1245
1246 #ifdef VIDEO_ENABLED
1247         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1248         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1249         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1250         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1251         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1252         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1253         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1254         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1255         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1256 #endif
1257
1258         /*add all payload type for which we don't care about the number */
1259         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1260         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1261         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1262         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1263         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1264         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1265         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1266         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1267         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1268         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1269         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1270         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1271         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1272         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1273         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1274         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1275         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1276         linphone_core_handle_static_payloads(lc);
1277
1278         ms_init();
1279         /* create a mediastreamer2 event queue and set it as global */
1280         /* This allows to run event's callback in linphone_core_iterate() */
1281         lc->msevq=ms_event_queue_new();
1282         ms_set_global_event_queue(lc->msevq);
1283
1284         lc->config=lp_config_new(config_path);
1285         if (factory_config_path)
1286                 lp_config_read_file(lc->config,factory_config_path);
1287
1288         lc->sal=sal_init();
1289         sal_set_user_pointer(lc->sal,lc);
1290         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1291
1292         lc->network_last_check = 0;
1293         lc->network_last_status = FALSE;
1294
1295         sip_setup_register_all();
1296         sound_config_read(lc);
1297         net_config_read(lc);
1298         rtp_config_read(lc);
1299         codecs_config_read(lc);
1300         sip_config_read(lc); /* this will start eXosip*/
1301         video_config_read(lc);
1302         //autoreplier_config_init(&lc->autoreplier_conf);
1303         lc->presence_mode=LinphoneStatusOnline;
1304         misc_config_read(lc);
1305         ui_config_read(lc);
1306 #ifdef TUNNEL_ENABLED
1307         lc->tunnel=linphone_core_tunnel_new(lc);
1308         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1309 #endif
1310         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>=lc->sip_conf.delayed_timeout)){
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 #ifdef BUILD_UPNP
2609                 if (lc->upnp != NULL && linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp &&
2610                         linphone_upnp_context_get_state(lc->upnp) == LinphoneUpnpStateOk) {
2611 #else //BUILD_UPNP
2612                 {
2613 #endif //BUILD_UPNP
2614                         /*defer the start of the call after the OPTIONS ping*/
2615                         call->ping_replied=FALSE;
2616                         call->ping_op=sal_op_new(lc->sal);
2617                         sal_ping(call->ping_op,from,real_url);
2618                         sal_op_set_user_pointer(call->ping_op,call);
2619                         call->start_time=time(NULL);
2620                         defer = TRUE;
2621                 }
2622         }
2623
2624         if (defer==FALSE) linphone_core_start_invite(lc,call);
2625
2626         if (real_url!=NULL) ms_free(real_url);
2627         return call;
2628 }
2629
2630 /**
2631  * Performs a simple call transfer to the specified destination.
2632  *
2633  * @ingroup call_control
2634  * The remote endpoint is expected to issue a new call to the specified destination.
2635  * The current call remains active and thus can be later paused or terminated.
2636 **/
2637 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2638 {
2639         char *real_url=NULL;
2640         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2641
2642         if (!real_parsed_url){
2643                 /* bad url */
2644                 return -1;
2645         }
2646         if (call==NULL){
2647                 ms_warning("No established call to refer.");
2648                 return -1;
2649         }
2650         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2651         real_url=linphone_address_as_string (real_parsed_url);
2652         sal_call_refer(call->op,real_url);
2653         ms_free(real_url);
2654         linphone_address_destroy(real_parsed_url);
2655         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2656         return 0;
2657 }
2658
2659 /**
2660  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2661  * @param lc linphone core object
2662  * @param call a running call you want to transfer
2663  * @param dest a running call whose remote person will receive the transfer
2664  *
2665  * @ingroup call_control
2666  *
2667  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2668  * The destination call is a call previously established to introduce the transfered person.
2669  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2670  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2671  * close the call with us (the 'dest' call).
2672 **/
2673 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2674         int result = sal_call_refer_with_replaces (call->op,dest->op);
2675         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2676         return result;
2677 }
2678
2679 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2680         LinphoneCall *call = linphone_core_get_current_call(lc);
2681         if(call != NULL)
2682         {
2683                 if(call->dir==LinphoneCallIncoming
2684                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2685                         return TRUE;
2686         }
2687         return FALSE;
2688 }
2689
2690 bool_t linphone_core_incompatible_security(LinphoneCore *lc, SalMediaDescription *md){
2691         if (linphone_core_is_media_encryption_mandatory(lc) && linphone_core_get_media_encryption(lc)==LinphoneMediaEncryptionSRTP){
2692                 int i;
2693                 for(i=0;i<md->n_active_streams;i++){
2694                         SalStreamDescription *sd=&md->streams[i];
2695                         if (sd->proto!=SalProtoRtpSavp){
2696                                 return TRUE;
2697                         }
2698                 }
2699         }
2700         return FALSE;
2701 }
2702
2703 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2704         char *barmesg;
2705         char *tmp;
2706         LinphoneAddress *from_parsed;
2707         SalMediaDescription *md;
2708         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2709         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2710
2711         linphone_call_make_local_media_description(lc,call);
2712         sal_call_set_local_media_description(call->op,call->localdesc);
2713         md=sal_call_get_final_media_description(call->op);
2714         if (md){
2715                 if (sal_media_description_empty(md) || linphone_core_incompatible_security(lc,md)){
2716                         sal_call_decline(call->op,SalReasonMedia,NULL);
2717                         linphone_call_unref(call);
2718                         return;
2719                 }
2720         }
2721
2722         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2723         linphone_address_clean(from_parsed);
2724         tmp=linphone_address_as_string(from_parsed);
2725         linphone_address_destroy(from_parsed);
2726         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2727             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2728         if (lc->vtable.show) lc->vtable.show(lc);
2729         if (lc->vtable.display_status)
2730             lc->vtable.display_status(lc,barmesg);
2731
2732         /* play the ring if this is the only call*/
2733         if (ms_list_size(lc->calls)==1){
2734                 lc->current_call=call;
2735                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2736                         ring_stop(lc->ringstream);
2737                         lc->ringstream=NULL;
2738                         lc->dmfs_playing_start_time=0;
2739                 }
2740                 if (lc->sound_conf.ring_sndcard!=NULL){
2741                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2742                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2743                                 ms_message("Starting local ring...");
2744                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2745                         }
2746                         else
2747                         {
2748                                 ms_message("the local ring is already started");
2749                         }
2750                 }
2751         }else{
2752                 /* else play a tone within the context of the current call */
2753                 call->ringing_beep=TRUE;
2754                 linphone_core_play_tone(lc);
2755         }
2756
2757         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2758
2759         if (call->state==LinphoneCallIncomingReceived){
2760                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2761
2762                 if (propose_early_media || ringback_tone!=NULL){
2763                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2764                         md=sal_call_get_final_media_description(call->op);
2765                         linphone_core_update_streams(lc,call,md);
2766                 }
2767                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2768                         linphone_core_accept_call(lc,call);
2769                 }
2770         }
2771         linphone_call_unref(call);
2772
2773         ms_free(barmesg);
2774         ms_free(tmp);
2775 }
2776
2777 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2778         const char *subject;
2779         call->camera_active=call->params.has_video;
2780         if (call->ice_session != NULL) {
2781                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2782         }
2783 #ifdef BUILD_UPNP
2784         if(call->upnp_session != NULL) {
2785                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2786         }
2787 #endif //BUILD_UPNP
2788         if (call->params.in_conference){
2789                 subject="Conference";
2790         }else{
2791                 subject="Media change";
2792         }
2793         if (lc->vtable.display_status)
2794                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2795         sal_call_set_local_media_description (call->op,call->localdesc);
2796         return sal_call_update(call->op,subject);
2797 }
2798
2799 /**
2800  * @ingroup call_control
2801  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2802  *
2803  * In this version this is limited to the following use cases:
2804  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2805  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2806  *
2807  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2808  * @param lc the core
2809  * @param call the call to be updated
2810  * @param params the new call parameters to use. (may be NULL)
2811  * @return 0 if successful, -1 otherwise.
2812 **/
2813 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2814         int err=0;
2815         if (params!=NULL){
2816                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2817 #ifdef VIDEO_ENABLED
2818                 bool_t has_video = call->params.has_video;
2819
2820                 // Video removing
2821                 if((call->videostream != NULL) && !params->has_video) {
2822                         if (call->ice_session != NULL) {
2823                                 ice_session_remove_check_list(call->ice_session, call->videostream->ms.ice_check_list);
2824                                 call->videostream->ms.ice_check_list = NULL;
2825                         }
2826 #ifdef BUILD_UPNP
2827                         if(call->upnp_session != NULL) {
2828                                 if (linphone_core_update_upnp(lc, call)<0) {
2829                                         /* uPnP port mappings failed, proceed with the call anyway. */
2830                                         linphone_call_delete_upnp_session(call);
2831                                 }
2832                         }
2833 #endif //BUILD_UPNP
2834                 }
2835
2836                 call->params = *params;
2837                 linphone_call_make_local_media_description(lc, call);
2838
2839                 // Video adding
2840                 if (!has_video && call->params.has_video) {
2841                         if (call->ice_session != NULL) {
2842                                 /* Defer call update until the ICE candidates gathering process has finished. */
2843                                 ms_message("Defer call update to gather ICE candidates");
2844                                 linphone_call_init_video_stream(call);
2845                                 video_stream_prepare_video(call->videostream);
2846                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2847                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2848                                         linphone_call_delete_ice_session(call);
2849                                 } else {
2850                                         return err;
2851                                 }
2852                         }
2853 #ifdef BUILD_UPNP
2854                         if(call->upnp_session != NULL) {
2855                                 ms_message("Defer call update to add uPnP port mappings");
2856                                 linphone_call_init_video_stream(call);
2857                                 video_stream_prepare_video(call->videostream);
2858                                 if (linphone_core_update_upnp(lc, call)<0) {
2859                                         /* uPnP port mappings failed, proceed with the call anyway. */
2860                                         linphone_call_delete_upnp_session(call);
2861                                 } else {
2862                                         return err;
2863                                 }
2864                         }
2865 #endif //BUILD_UPNP
2866                 }
2867 #endif
2868                 err = linphone_core_start_update_call(lc, call);
2869         }else{
2870 #ifdef VIDEO_ENABLED
2871                 if (call->videostream!=NULL){
2872                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2873                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2874                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2875                         }else video_stream_update_video_params(call->videostream);
2876                 }
2877 #endif
2878         }
2879
2880         return err;
2881 }
2882
2883 /**
2884  * @ingroup call_control
2885  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2886  *
2887  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2888  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2889  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2890  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2891  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2892  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2893  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2894  *
2895  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2896 **/
2897 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2898         if (call->state==LinphoneCallUpdatedByRemote){
2899                 call->defer_update=TRUE;
2900                 return 0;
2901         }
2902         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2903         return -1;
2904 }
2905
2906 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2907         SalMediaDescription *md;
2908         if (call->ice_session != NULL) {
2909                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2910                         /* Defer the sending of the answer until there are no losing pairs left. */
2911                         return 0;
2912                 }
2913                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2914         }
2915 #ifdef BUILD_UPNP
2916         if(call->upnp_session != NULL) {
2917                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2918         }
2919 #endif //BUILD_UPNP
2920         linphone_call_update_remote_session_id_and_ver(call);
2921         sal_call_set_local_media_description(call->op,call->localdesc);
2922         sal_call_accept(call->op);
2923         md=sal_call_get_final_media_description(call->op);
2924         if (md && !sal_media_description_empty(md))
2925                 linphone_core_update_streams (lc,call,md);
2926         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2927         return 0;
2928 }
2929
2930 /**
2931  * @ingroup call_control
2932  * Accept call modifications initiated by other end.
2933  *
2934  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2935  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2936  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2937  * requested by the other party, such as whether a video stream is requested.
2938  *
2939  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2940  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2941  * If params is not NULL, then the update will be accepted according to the parameters passed.
2942  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2943  * (see linphone_call_params_enable_video()).
2944  * @param lc the linphone core object.
2945  * @param call the LinphoneCall object
2946  * @param params a LinphoneCallParams object describing the call parameters to accept.
2947  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2948 **/
2949 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2950         SalMediaDescription *remote_desc;
2951         bool_t keep_sdp_version;
2952 #ifdef VIDEO_ENABLED
2953         bool_t old_has_video = call->params.has_video;
2954 #endif
2955         if (call->state!=LinphoneCallUpdatedByRemote){
2956                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2957                          linphone_call_state_to_string(call->state));
2958                 return -1;
2959         }
2960         remote_desc = sal_call_get_remote_media_description(call->op);
2961         keep_sdp_version = lp_config_get_int(lc->config, "sip", "keep_sdp_version", 0);
2962         if (keep_sdp_version &&(remote_desc->session_id == call->remote_session_id) && (remote_desc->session_ver == call->remote_session_ver)) {
2963                 /* Remote has sent an INVITE with the same SDP as before, so send a 200 OK with the same SDP as before. */
2964                 ms_warning("SDP version has not changed, send same SDP as before.");
2965                 sal_call_accept(call->op);
2966                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2967                 return 0;
2968         }
2969         if (params==NULL){
2970                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2971         }else
2972                 call->params=*params;
2973
2974         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2975                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2976                 call->params.has_video=FALSE;
2977         }
2978         if (call->current_params.in_conference) {
2979                 ms_warning("Video isn't supported in conference");
2980                 call->params.has_video = FALSE;
2981         }
2982         call->params.has_video &= linphone_core_media_description_contains_video_stream(remote_desc);
2983         call->camera_active=call->params.has_video;
2984         linphone_call_make_local_media_description(lc,call);
2985         if (call->ice_session != NULL) {
2986                 linphone_core_update_ice_from_remote_media_description(call, remote_desc);
2987 #ifdef VIDEO_ENABLED
2988                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2989                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2990                                 linphone_call_init_video_stream(call);
2991                                 video_stream_prepare_video(call->videostream);
2992                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2993                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2994                                         linphone_call_delete_ice_session(call);
2995                                 } else return 0;
2996                         }
2997                 }
2998 #endif //VIDEO_ENABLED
2999         }
3000
3001 #ifdef BUILD_UPNP
3002         if(call->upnp_session != NULL) {
3003                 linphone_core_update_upnp_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
3004 #ifdef VIDEO_ENABLED
3005                 if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
3006                         linphone_call_init_video_stream(call);
3007                         video_stream_prepare_video(call->videostream);
3008                         if (linphone_core_update_upnp(lc, call)<0) {
3009                                 /* uPnP update failed, proceed with the call anyway. */
3010                                 linphone_call_delete_upnp_session(call);
3011                         } else return 0;
3012                 }
3013 #endif //VIDEO_ENABLED
3014         }
3015 #endif //BUILD_UPNP
3016
3017         linphone_core_start_accept_call_update(lc, call);
3018         return 0;
3019 }
3020
3021 /**
3022  * Accept an incoming call.
3023  *
3024  * @ingroup call_control
3025  * Basically the application is notified of incoming calls within the
3026  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3027  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3028  * The application can later accept the call using this method.
3029  * @param lc the LinphoneCore object
3030  * @param call the LinphoneCall object representing the call to be answered.
3031  *
3032 **/
3033 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
3034         return linphone_core_accept_call_with_params(lc,call,NULL);
3035 }
3036
3037 /**
3038  * Accept an incoming call, with parameters.
3039  *
3040  * @ingroup call_control
3041  * Basically the application is notified of incoming calls within the
3042  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3043  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3044  * The application can later accept the call using
3045  * this method.
3046  * @param lc the LinphoneCore object
3047  * @param call the LinphoneCall object representing the call to be answered.
3048  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
3049  *
3050 **/
3051 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
3052 {
3053         LinphoneProxyConfig *cfg=NULL;
3054         const char *contact=NULL;
3055         SalOp *replaced;
3056         SalMediaDescription *new_md;
3057         bool_t was_ringing=FALSE;
3058
3059         if (call==NULL){
3060                 //if just one call is present answer the only one ...
3061                 if(linphone_core_get_calls_nb (lc) != 1)
3062                         return -1;
3063                 else
3064                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
3065         }
3066
3067         if (call->state==LinphoneCallConnected){
3068                 /*call already accepted*/
3069                 return -1;
3070         }
3071
3072         /* check if this call is supposed to replace an already running one*/
3073         replaced=sal_call_get_replaces(call->op);
3074         if (replaced){
3075                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
3076                 if (rc){
3077                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
3078                                    call,rc);
3079                         linphone_core_terminate_call(lc,rc);
3080                 }
3081         }
3082
3083         if (lc->current_call!=call){
3084                 linphone_core_preempt_sound_resources(lc);
3085         }
3086
3087         /*stop ringing */
3088         if (lc->ringstream!=NULL) {
3089                 ms_message("stop ringing");
3090                 ring_stop(lc->ringstream);
3091                 ms_message("ring stopped");
3092                 lc->ringstream=NULL;
3093                 was_ringing=TRUE;
3094         }
3095         if (call->ringing_beep){
3096                 linphone_core_stop_dtmf(lc);
3097                 call->ringing_beep=FALSE;
3098         }
3099
3100         linphone_core_get_default_proxy(lc,&cfg);
3101         call->dest_proxy=cfg;
3102         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
3103
3104         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
3105                 ms_message("Overriding default proxy setting for this call:");
3106                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
3107         }
3108         /*try to be best-effort in giving real local or routable contact address*/
3109         contact=get_fixed_contact(lc,call,call->dest_proxy);
3110         if (contact)
3111                 sal_op_set_contact(call->op,contact);
3112
3113         if (params){
3114                 const SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
3115                 _linphone_call_params_copy(&call->params,params);
3116                 // There might not be a md if the INVITE was lacking an SDP
3117                 // In this case we use the parameters as is.
3118                 if (md) call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
3119                 call->camera_active=call->params.has_video;
3120                 linphone_call_make_local_media_description(lc,call);
3121                 sal_call_set_local_media_description(call->op,call->localdesc);
3122         }
3123
3124         if (call->audiostream==NULL)
3125                 linphone_call_init_media_streams(call);
3126         if (!was_ringing && call->audiostream->ms.ticker==NULL){
3127                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
3128         }
3129
3130         linphone_call_update_remote_session_id_and_ver(call);
3131         sal_call_accept(call->op);
3132         if (lc->vtable.display_status!=NULL)
3133                 lc->vtable.display_status(lc,_("Connected."));
3134         lc->current_call=call;
3135         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
3136         new_md=sal_call_get_final_media_description(call->op);
3137         linphone_core_update_streams(lc, call, new_md);
3138         if (new_md){
3139                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
3140         }else call->media_pending=TRUE;
3141
3142         ms_message("call answered.");
3143         return 0;
3144 }
3145
3146 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
3147         sal_call_terminate(call->op);
3148
3149         /*stop ringing*/
3150         if (lc->ringstream!=NULL) {
3151                 ring_stop(lc->ringstream);
3152                 lc->ringstream=NULL;
3153         }
3154         linphone_call_stop_media_streams(call);
3155
3156 #ifdef BUILD_UPNP
3157         linphone_call_delete_upnp_session(call);
3158 #endif //BUILD_UPNP
3159
3160         if (lc->vtable.display_status!=NULL)
3161                 lc->vtable.display_status(lc,_("Call aborted") );
3162         linphone_call_set_state(call,LinphoneCallError,error);
3163         return 0;
3164 }
3165
3166 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
3167         if (call->state==LinphoneCallIncomingReceived){
3168                 if (call->reason!=LinphoneReasonNotAnswered)
3169                         call->reason=LinphoneReasonDeclined;
3170         }
3171         /*stop ringing*/
3172         if (lc->ringstream!=NULL) {
3173                 ring_stop(lc->ringstream);
3174                 lc->ringstream=NULL;
3175         }
3176
3177         linphone_call_stop_media_streams(call);
3178
3179 #ifdef BUILD_UPNP
3180         linphone_call_delete_upnp_session(call);
3181 #endif //BUILD_UPNP
3182
3183         if (lc->vtable.display_status!=NULL)
3184                 lc->vtable.display_status(lc,_("Call ended") );
3185         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
3186 }
3187
3188 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
3189         if (call->state==LinphoneCallIncomingReceived){
3190                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
3191                 call->reason=LinphoneReasonDeclined;
3192                 terminate_call(lc,call);
3193         }else{
3194                 ms_error("Bad state for call redirection.");
3195                 return -1;
3196     }
3197         return 0;
3198 }
3199
3200
3201 /**
3202  * Terminates a call.
3203  *
3204  * @ingroup call_control
3205  * @param lc the LinphoneCore
3206  * @param the_call the LinphoneCall object representing the call to be terminated.
3207 **/
3208 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
3209 {
3210         LinphoneCall *call;
3211         if (the_call == NULL){
3212                 call = linphone_core_get_current_call(lc);
3213                 if (ms_list_size(lc->calls)==1){
3214                         call=(LinphoneCall*)lc->calls->data;
3215                 }else{
3216                         ms_warning("No unique call to terminate !");
3217                         return -1;
3218                 }
3219         }
3220         else
3221         {
3222                 call = the_call;
3223         }
3224         sal_call_terminate(call->op);
3225         terminate_call(lc,call);
3226         return 0;
3227 }
3228
3229 /**
3230  * Decline a pending incoming call, with a reason.
3231  *
3232  * @ingroup call_control
3233  *
3234  * @param lc the linphone core
3235  * @param call the LinphoneCall, must be in the IncomingReceived state.
3236  * @param reason the reason for rejecting the call: LinphoneReasonDeclined or LinphoneReasonBusy
3237 **/
3238 int linphone_core_decline_call(LinphoneCore *lc, LinphoneCall * call, LinphoneReason reason){
3239         SalReason sal_reason=SalReasonUnknown;
3240         if (call->state!=LinphoneCallIncomingReceived && call->state!=LinphoneCallIncomingEarlyMedia){
3241                 ms_error("linphone_core_decline_call(): Cannot decline a call that is in state %s",linphone_call_state_to_string(call->state));
3242                 return -1;
3243         }
3244         switch(reason){
3245                 case LinphoneReasonDeclined:
3246                         sal_reason=SalReasonDeclined;
3247                 break;
3248                 case LinphoneReasonBusy:
3249                         sal_reason=SalReasonBusy;
3250                 break;
3251                 default:
3252                         ms_error("linphone_core_decline_call(): unsupported reason %s",linphone_reason_to_string(reason));
3253                         return -1;
3254                 break;
3255         }
3256         sal_call_decline(call->op,sal_reason,NULL);
3257         terminate_call(lc,call);
3258         return 0;
3259 }
3260
3261 /**
3262  * Terminates all the calls.
3263  *
3264  * @ingroup call_control
3265  * @param lc The LinphoneCore
3266 **/
3267 int linphone_core_terminate_all_calls(LinphoneCore *lc){
3268         MSList *calls=lc->calls;
3269         while(calls) {
3270                 LinphoneCall *c=(LinphoneCall*)calls->data;
3271                 calls=calls->next;
3272                 linphone_core_terminate_call(lc,c);
3273         }
3274         return 0;
3275 }
3276
3277 /**
3278  * Returns the current list of calls.
3279  *
3280  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
3281  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
3282  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
3283  *
3284  * @ingroup call_control
3285 **/
3286 const MSList *linphone_core_get_calls(LinphoneCore *lc)
3287 {
3288         return lc->calls;
3289 }
3290
3291 /**
3292  * Returns TRUE if there is a call running.
3293  *
3294  * @ingroup call_control
3295 **/
3296 bool_t linphone_core_in_call(const LinphoneCore *lc){
3297         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
3298 }
3299
3300 /**
3301  * Returns The _LinphoneCall struct of the current call if one is in call
3302  *
3303  * @ingroup call_control
3304 **/
3305 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
3306 {
3307         return lc->current_call;
3308 }
3309
3310 /**
3311  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
3312  * this file will be played to the remote user.
3313  *
3314  * @ingroup call_control
3315 **/
3316 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
3317 {
3318         const char *subject=NULL;
3319
3320         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
3321                 ms_warning("Cannot pause this call, it is not active.");
3322                 return -1;
3323         }
3324         linphone_call_make_local_media_description(lc,call);
3325         if (call->ice_session != NULL) {
3326                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3327         }
3328 #ifdef BUILD_UPNP
3329         if(call->upnp_session != NULL) {
3330                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3331         }
3332 #endif //BUILD_UPNP
3333         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
3334                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3335                 subject="Call on hold";
3336         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
3337                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3338                 subject="Call on hold for me too";
3339         }else{
3340                 ms_error("No reason to pause this call, it is already paused or inactive.");
3341                 return -1;
3342         }
3343         sal_call_set_local_media_description(call->op,call->localdesc);
3344         if (sal_call_update(call->op,subject) != 0){
3345                 if (lc->vtable.display_warning)
3346                         lc->vtable.display_warning(lc,_("Could not pause the call"));
3347         }
3348         lc->current_call=NULL;
3349         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
3350         if (lc->vtable.display_status)
3351                 lc->vtable.display_status(lc,_("Pausing the current call..."));
3352         if (call->audiostream || call->videostream)
3353                 linphone_call_stop_media_streams (call);
3354         return 0;
3355 }
3356
3357 /**
3358  * Pause all currently running calls.
3359  * @ingroup call_control
3360 **/
3361 int linphone_core_pause_all_calls(LinphoneCore *lc){
3362         const MSList *elem;
3363         for(elem=lc->calls;elem!=NULL;elem=elem->next){
3364                 LinphoneCall *call=(LinphoneCall *)elem->data;
3365                 LinphoneCallState cs=linphone_call_get_state(call);
3366                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3367                         linphone_core_pause_call(lc,call);
3368                 }
3369         }
3370         return 0;
3371 }
3372
3373 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3374         LinphoneCall *current_call;
3375         if (linphone_core_is_in_conference(lc)){
3376                 linphone_core_leave_conference(lc);
3377                 return;
3378         }
3379         current_call=linphone_core_get_current_call(lc);
3380         if(current_call != NULL){
3381                 ms_message("Pausing automatically the current call.");
3382                 linphone_core_pause_call(lc,current_call);
3383         }
3384 }
3385
3386 /**
3387  * Resumes the call.
3388  *
3389  * @ingroup call_control
3390 **/
3391 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3392 {
3393         char temp[255]={0};
3394         LinphoneCall *call = the_call;
3395         const char *subject="Call resuming";
3396
3397         if(call->state!=LinphoneCallPaused ){
3398                 ms_warning("we cannot resume a call that has not been established and paused before");
3399                 return -1;
3400         }
3401         if (call->params.in_conference==FALSE){
3402                 linphone_core_preempt_sound_resources(lc);
3403                 ms_message("Resuming call %p",call);
3404         }
3405
3406         /* Stop playing music immediately. If remote side is a conference it
3407          prevents the participants to hear it while the 200OK comes back.*/
3408         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3409
3410         linphone_call_make_local_media_description(lc,the_call);
3411         if (call->ice_session != NULL) {
3412                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3413         }
3414 #ifdef BUILD_UPNP
3415         if(call->upnp_session != NULL) {
3416                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3417         }
3418 #endif //BUILD_UPNP
3419         sal_call_set_local_media_description(call->op,call->localdesc);
3420         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3421         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3422         if(sal_call_update(call->op,subject) != 0){
3423                 return -1;
3424         }
3425         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3426         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3427         if (lc->vtable.display_status)
3428                 lc->vtable.display_status(lc,temp);
3429         return 0;
3430 }
3431
3432 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3433         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3434         return !linphone_address_weak_equal (addr,raddr);
3435 }
3436
3437 /**
3438  * Get the call with the remote_address specified
3439  * @param lc
3440  * @param remote_address
3441  * @return the LinphoneCall of the call if found
3442  *
3443  * @ingroup call_control
3444  */
3445 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3446         LinphoneAddress *raddr=linphone_address_new(remote_address);
3447         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3448         if (elem) return (LinphoneCall*) elem->data;
3449         return NULL;
3450 }
3451
3452 int linphone_core_send_publish(LinphoneCore *lc,
3453                                LinphoneOnlineStatus presence_mode)
3454 {
3455         const MSList *elem;
3456         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3457                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3458                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3459         }
3460         return 0;
3461 }
3462
3463 /**
3464  * Set the incoming call timeout in seconds.
3465  *
3466  * @ingroup call_control
3467  * If an incoming call isn't answered for this timeout period, it is
3468  * automatically declined.
3469 **/
3470 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3471         lc->sip_conf.inc_timeout=seconds;
3472         if (linphone_core_ready(lc)){
3473                 lp_config_set_int(lc->config,"sip","inc_timeout",seconds);
3474         }
3475 }
3476
3477 /**
3478  * Returns the incoming call timeout
3479  *
3480  * @ingroup call_control
3481  * See linphone_core_set_inc_timeout() for details.
3482 **/
3483 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3484         return lc->sip_conf.inc_timeout;
3485 }
3486
3487 /**
3488  * Set the in call timeout in seconds.
3489  *
3490  * @ingroup call_control
3491  * After this timeout period, the call is automatically hangup.
3492 **/
3493 void linphone_core_set_in_call_timeout(LinphoneCore *lc, int seconds){
3494         lc->sip_conf.in_call_timeout=seconds;
3495 }
3496
3497 /**
3498  * Returns the in call timeout
3499  *
3500  * @ingroup call_control
3501  * See linphone_core_set_in_call_timeout() for details.
3502 **/
3503 int linphone_core_get_in_call_timeout(LinphoneCore *lc){
3504         return lc->sip_conf.in_call_timeout;
3505 }
3506
3507 /**
3508  * Returns the delayed timeout
3509  *
3510  * @ingroup call_control
3511  * See linphone_core_set_delayed_timeout() for details.
3512 **/
3513 int linphone_core_get_delayed_timeout(LinphoneCore *lc){
3514         return lc->sip_conf.delayed_timeout;
3515 }
3516
3517 /**
3518  * Set the in delayed timeout in seconds.
3519  *
3520  * @ingroup call_control
3521  * After this timeout period, a delayed call (internal call initialisation or resolution) is resumed.
3522 **/
3523 void linphone_core_set_delayed_timeout(LinphoneCore *lc, int seconds){
3524         lc->sip_conf.delayed_timeout=seconds;
3525 }
3526
3527 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3528                                                                                                         const char *contact,
3529                                                                                                         LinphoneOnlineStatus presence_mode)
3530 {
3531         if (minutes_away>0) lc->minutes_away=minutes_away;
3532
3533         if (lc->alt_contact!=NULL) {
3534                 ms_free(lc->alt_contact);
3535                 lc->alt_contact=NULL;
3536         }
3537         if (contact) lc->alt_contact=ms_strdup(contact);
3538         if (lc->presence_mode!=presence_mode){
3539                 linphone_core_notify_all_friends(lc,presence_mode);
3540                 /*
3541                    Improve the use of all LINPHONE_STATUS available.
3542                    !TODO Do not mix "presence status" with "answer status code"..
3543                    Use correct parameter to follow sip_if_match/sip_etag.
3544                  */
3545                 linphone_core_send_publish(lc,presence_mode);
3546         }
3547         lc->presence_mode=presence_mode;
3548 }
3549
3550 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3551         return lc->presence_mode;
3552 }
3553
3554 /**
3555  * Get playback sound level in 0-100 scale.
3556  *
3557  * @ingroup media_parameters
3558 **/
3559 int linphone_core_get_play_level(LinphoneCore *lc)
3560 {
3561         return lc->sound_conf.play_lev;
3562 }
3563
3564 /**
3565  * Get ring sound level in 0-100 scale
3566  *
3567  * @ingroup media_parameters
3568 **/
3569 int linphone_core_get_ring_level(LinphoneCore *lc)
3570 {
3571         return lc->sound_conf.ring_lev;
3572 }
3573
3574 /**
3575  * Get sound capture level in 0-100 scale
3576  *
3577  * @ingroup media_parameters
3578 **/
3579 int linphone_core_get_rec_level(LinphoneCore *lc){
3580         return lc->sound_conf.rec_lev;
3581 }
3582
3583 /**
3584  * Set sound ring level in 0-100 scale
3585  *
3586  * @ingroup media_parameters
3587 **/
3588 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3589         MSSndCard *sndcard;
3590         lc->sound_conf.ring_lev=level;
3591         sndcard=lc->sound_conf.ring_sndcard;
3592         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3593 }
3594
3595 /**
3596  * Allow to control microphone level:  gain in db
3597  *
3598  * @ingroup media_parameters
3599 **/
3600 void linphone_core_set_mic_gain_db (LinphoneCore *lc, float gaindb){
3601         float gain=gaindb;
3602         LinphoneCall *call=linphone_core_get_current_call (lc);
3603         AudioStream *st;
3604
3605         lc->sound_conf.soft_mic_lev=gaindb;
3606
3607         if (linphone_core_ready(lc)){
3608                 lp_config_set_float(lc->config,"sound","mic_gain_db",lc->sound_conf.soft_mic_lev);
3609         }
3610
3611         if (call==NULL || (st=call->audiostream)==NULL){
3612                 ms_message("linphone_core_set_mic_gain_db(): no active call.");
3613                 return;
3614         }
3615         if (st->volrecv){
3616                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_DB_GAIN,&gain);
3617         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3618 }
3619
3620 /**
3621  * Get microphone gain in db.
3622  *
3623  * @ingroup media_parameters
3624 **/
3625 float linphone_core_get_mic_gain_db(LinphoneCore *lc) {
3626         return lc->sound_conf.soft_mic_lev;
3627 }
3628
3629 /**
3630  * Allow to control play level before entering sound card:  gain in db
3631  *
3632  * @ingroup media_parameters
3633 **/
3634 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3635         float gain=gaindb;
3636         LinphoneCall *call=linphone_core_get_current_call (lc);
3637         AudioStream *st;
3638
3639         lc->sound_conf.soft_play_lev=gaindb;
3640         if (linphone_core_ready(lc)){
3641                 lp_config_set_float(lc->config,"sound","playback_gain_db",lc->sound_conf.soft_play_lev);
3642         }
3643
3644         if (call==NULL || (st=call->audiostream)==NULL){
3645                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3646                 return;
3647         }
3648         if (st->volrecv){
3649                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3650         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3651 }
3652
3653 /**
3654  * Get playback gain in db before entering  sound card.
3655  *
3656  * @ingroup media_parameters
3657 **/
3658 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3659         return lc->sound_conf.soft_play_lev;
3660 }
3661
3662 /**
3663  * Set sound playback level in 0-100 scale
3664  *
3665  * @ingroup media_parameters
3666 **/
3667 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3668         MSSndCard *sndcard;
3669         lc->sound_conf.play_lev=level;
3670         sndcard=lc->sound_conf.play_sndcard;
3671         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3672 }
3673
3674 /**
3675  * Set sound capture level in 0-100 scale
3676  *
3677  * @ingroup media_parameters
3678 **/
3679 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3680 {
3681         MSSndCard *sndcard;
3682         lc->sound_conf.rec_lev=level;
3683         sndcard=lc->sound_conf.capt_sndcard;
3684         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3685 }
3686
3687 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3688         MSSndCard *sndcard=NULL;
3689         if (devid!=NULL){
3690                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3691                 if (sndcard!=NULL &&
3692                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3693                         ms_warning("%s card does not have the %s capability, ignoring.",
3694                                 devid,
3695                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3696                         sndcard=NULL;
3697                 }
3698         }
3699         if (sndcard==NULL) {
3700                 /* get a card that has read+write capabilities */
3701                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3702                 /* otherwise refine to the first card having the right capability*/
3703                 if (sndcard==NULL){
3704                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3705                         for(;elem!=NULL;elem=elem->next){
3706                                 sndcard=(MSSndCard*)elem->data;
3707                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3708                         }
3709                 }
3710                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3711                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3712                         if (elem) sndcard=(MSSndCard*)elem->data;
3713         }
3714         }
3715         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3716         return sndcard;
3717 }
3718
3719 /**
3720  * Returns true if the specified sound device can capture sound.
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 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3727         MSSndCard *sndcard;
3728         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3729         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3730         return FALSE;
3731 }
3732
3733 /**
3734  * Returns true if the specified sound device can play sound.
3735  *
3736  * @ingroup media_parameters
3737  * @param lc The LinphoneCore object
3738  * @param devid the device name as returned by linphone_core_get_sound_devices()
3739 **/
3740 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3741         MSSndCard *sndcard;
3742         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3743         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3744         return FALSE;
3745 }
3746
3747 /**
3748  * Sets the sound device used for ringing.
3749  *
3750  * @ingroup media_parameters
3751  * @param lc The LinphoneCore object
3752  * @param devid the device name as returned by linphone_core_get_sound_devices()
3753 **/
3754 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3755         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3756         lc->sound_conf.ring_sndcard=card;
3757         if (card && linphone_core_ready(lc))
3758                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3759         return 0;
3760 }
3761
3762 /**
3763  * Sets the sound device used for playback.
3764  *
3765  * @ingroup media_parameters
3766  * @param lc The LinphoneCore object
3767  * @param devid the device name as returned by linphone_core_get_sound_devices()
3768 **/
3769 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3770         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3771         lc->sound_conf.play_sndcard=card;
3772         if (card &&  linphone_core_ready(lc))
3773                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3774         return 0;
3775 }
3776
3777 /**
3778  * Sets the sound device used for capture.
3779  *
3780  * @ingroup media_parameters
3781  * @param lc The LinphoneCore object
3782  * @param devid the device name as returned by linphone_core_get_sound_devices()
3783 **/
3784 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3785         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3786         lc->sound_conf.capt_sndcard=card;
3787         if (card &&  linphone_core_ready(lc))
3788                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3789         return 0;
3790 }
3791
3792 /**
3793  * Returns the name of the currently assigned sound device for ringing.
3794  *
3795  * @ingroup media_parameters
3796  * @param lc The LinphoneCore object
3797 **/
3798 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3799 {
3800         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3801         return NULL;
3802 }
3803
3804 /**
3805  * Returns the name of the currently assigned sound device for playback.
3806  *
3807  * @ingroup media_parameters
3808  * @param lc The LinphoneCore object
3809 **/
3810 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3811 {
3812         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3813 }
3814
3815 /**
3816  * Returns the name of the currently assigned sound device for capture.
3817  *
3818  * @ingroup media_parameters
3819  * @param lc The LinphoneCore object
3820 **/
3821 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3822 {
3823         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3824 }
3825
3826 /**
3827  * Returns an unmodifiable array of available sound devices.
3828  *
3829  * The array is NULL terminated.
3830  *
3831  * @ingroup media_parameters
3832  * @param lc The LinphoneCore object
3833 **/
3834 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3835         return lc->sound_conf.cards;
3836 }
3837
3838 /**
3839  * Returns an unmodifiable array of available video capture devices.
3840  *
3841  * @ingroup media_parameters
3842  * The array is NULL terminated.
3843 **/
3844 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3845         return lc->video_conf.cams;
3846 }
3847
3848 /**
3849  * Update detection of sound devices.
3850  *
3851  * Use this function when the application is notified of USB plug events, so that
3852  * list of available hardwares for sound playback and capture is updated.
3853  **/
3854 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3855         const char *ringer,*playback,*capture;
3856         ringer=linphone_core_get_ringer_device(lc);
3857         playback=linphone_core_get_playback_device(lc);
3858         capture=linphone_core_get_capture_device(lc);
3859         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3860         build_sound_devices_table(lc);
3861         linphone_core_set_ringer_device(lc,ringer);
3862         linphone_core_set_playback_device(lc,playback);
3863         linphone_core_set_capture_device(lc,capture);
3864 }
3865
3866 /**
3867  * Update detection of camera devices.
3868  *
3869  * Use this function when the application is notified of USB plug events, so that
3870  * list of available hardwares for video capture is updated.
3871  **/
3872 void linphone_core_reload_video_devices(LinphoneCore *lc){
3873         const char *devid;
3874         devid=linphone_core_get_video_device(lc);
3875         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3876         build_video_devices_table(lc);
3877         linphone_core_set_video_device(lc,devid);
3878 }
3879
3880 char linphone_core_get_sound_source(LinphoneCore *lc)
3881 {
3882         return lc->sound_conf.source;
3883 }
3884
3885 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3886 {
3887         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3888         lc->sound_conf.source=source;
3889         if (!sndcard) return;
3890         switch(source){
3891                 case 'm':
3892                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3893                         break;
3894                 case 'l':
3895                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3896                         break;
3897         }
3898
3899 }
3900
3901
3902 /**
3903  * Sets the path to a wav file used for ringing.
3904  *
3905  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3906  * @param lc The LinphoneCore object
3907  *
3908  * @ingroup media_parameters
3909 **/
3910 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3911         if (lc->sound_conf.local_ring!=0){
3912                 ms_free(lc->sound_conf.local_ring);
3913                 lc->sound_conf.local_ring=NULL;
3914         }
3915         if (path)
3916                 lc->sound_conf.local_ring=ms_strdup(path);
3917         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3918                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3919 }
3920
3921 /**
3922  * Returns the path to the wav file used for ringing.
3923  *
3924  * @param lc The LinphoneCore object
3925  * @ingroup media_parameters
3926 **/
3927 const char *linphone_core_get_ring(const LinphoneCore *lc){
3928         return lc->sound_conf.local_ring;
3929 }
3930
3931 /**
3932  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3933  *
3934  * @param path
3935  * @param lc The LinphoneCore object
3936  *
3937  * @ingroup initializing
3938 **/
3939 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3940         sal_set_root_ca(lc->sal, path);
3941 }
3942
3943 /**
3944  * Gets the path to a file or folder containing the trusted root CAs (PEM format)
3945  *
3946  * @param lc The LinphoneCore object
3947  *
3948  * @ingroup initializing
3949 **/
3950 const char *linphone_core_get_root_ca(LinphoneCore *lc){
3951         return sal_get_root_ca(lc->sal);
3952 }
3953
3954 /**
3955  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3956  *
3957  * @ingroup initializing
3958 **/
3959 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3960         sal_verify_server_certificates(lc->sal,yesno);
3961 }
3962
3963 /**
3964  * Specify whether the tls server certificate common name must be verified when connecting to a SIP/TLS server.
3965  * @ingroup initializing
3966 **/
3967 void linphone_core_verify_server_cn(LinphoneCore *lc, bool_t yesno){
3968         sal_verify_server_cn(lc->sal,yesno);
3969 }
3970
3971 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3972         LinphoneCore *lc=(LinphoneCore*)ud;
3973         lc->preview_finished=1;
3974 }
3975
3976 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3977 {
3978         if (lc->ringstream!=0){
3979                 ms_warning("Cannot start ring now,there's already a ring being played");
3980                 return -1;
3981         }
3982         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3983         lc->preview_finished=0;
3984         if (lc->sound_conf.ring_sndcard!=NULL){
3985                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3986                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3987         }
3988         return 0;
3989 }
3990
3991 /**
3992  * Sets the path to a wav file used for ringing back.
3993  *
3994  * Ringback means the ring that is heard when it's ringing at the remote party.
3995  * The file must be a wav 16bit linear.
3996  *
3997  * @ingroup media_parameters
3998 **/
3999 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
4000         if (lc->sound_conf.remote_ring!=0){
4001                 ms_free(lc->sound_conf.remote_ring);
4002         }
4003         lc->sound_conf.remote_ring=ms_strdup(path);
4004 }
4005
4006 /**
4007  * Returns the path to the wav file used for ringing back.
4008  *
4009  * @ingroup media_parameters
4010 **/
4011 const char * linphone_core_get_ringback(const LinphoneCore *lc){
4012         return lc->sound_conf.remote_ring;
4013 }
4014
4015 /**
4016  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
4017  *
4018  * @ingroup media_parameters
4019 **/
4020 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
4021         lc->sound_conf.ec=val;
4022         if ( linphone_core_ready(lc))
4023                 lp_config_set_int(lc->config,"sound","echocancellation",val);
4024 }
4025
4026
4027 /**
4028  * Returns TRUE if echo cancellation is enabled.
4029  *
4030  * @ingroup media_parameters
4031 **/
4032 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
4033         return lc->sound_conf.ec;
4034 }
4035
4036 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
4037         lc->sound_conf.ea=val;
4038 }
4039
4040 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
4041         return lc->sound_conf.ea;
4042 }
4043
4044 /**
4045  * Mutes or unmutes the local microphone.
4046  *
4047  * @ingroup media_parameters
4048 **/
4049 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
4050         LinphoneCall *call=linphone_core_get_current_call(lc);
4051         AudioStream *st=NULL;
4052         if (linphone_core_is_in_conference(lc)){
4053                 lc->conf_ctx.local_muted=val;
4054                 st=lc->conf_ctx.local_participant;
4055         }else if (call==NULL){
4056                 ms_warning("linphone_core_mute_mic(): No current call !");
4057                 return;
4058         }else{
4059                 st=call->audiostream;
4060                 call->audio_muted=val;
4061         }
4062         if (st!=NULL){
4063                 audio_stream_set_mic_gain(st,
4064                         (val==TRUE) ? 0 : pow(10,lc->sound_conf.soft_mic_lev/10));
4065                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
4066                         audio_stream_mute_rtp(st,val);
4067                 }
4068
4069         }
4070 }
4071 /**
4072  * Returns whether microphone is muted.
4073 **/
4074 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
4075         LinphoneCall *call=linphone_core_get_current_call(lc);
4076         if (linphone_core_is_in_conference(lc)){
4077                 return lc->conf_ctx.local_muted;
4078         }else if (call==NULL){
4079                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4080                 return FALSE;
4081         }
4082         return call->audio_muted;
4083 }
4084
4085 // returns rtp transmission status for an active stream
4086 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
4087 // was set on then rtp transmission is also muted
4088 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
4089         LinphoneCall *call=linphone_core_get_current_call(lc);
4090         if (call==NULL){
4091                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4092                 return FALSE;
4093         }
4094         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
4095                 return call->audio_muted;
4096         }
4097         return FALSE;
4098 }
4099
4100 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
4101         lc->sound_conf.agc=val;
4102 }
4103
4104 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
4105         return lc->sound_conf.agc;
4106 }
4107
4108 /**
4109  * Send the specified dtmf.
4110  *
4111  * @ingroup media_parameters
4112  * This function only works during calls. The dtmf is automatically played to the user.
4113  * @param lc The LinphoneCore object
4114  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
4115  *
4116 **/
4117 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
4118 {
4119         LinphoneCall *call=linphone_core_get_current_call(lc);
4120         if (call==NULL){
4121                 ms_warning("linphone_core_send_dtmf(): no active call");
4122                 return;
4123         }
4124         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
4125         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
4126         {
4127                 /* In Band DTMF */
4128                 if (call->audiostream!=NULL){
4129                         audio_stream_send_dtmf(call->audiostream,dtmf);
4130                 }
4131                 else
4132                 {
4133                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
4134                 }
4135         }
4136         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
4137                 /* Out of Band DTMF (use INFO method) */
4138                 sal_call_send_dtmf(call->op,dtmf);
4139         }
4140 }
4141
4142 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
4143         if (lc->net_conf.stun_server!=NULL)
4144                 ms_free(lc->net_conf.stun_server);
4145         if (server)
4146                 lc->net_conf.stun_server=ms_strdup(server);
4147         else lc->net_conf.stun_server=NULL;
4148         if (linphone_core_ready(lc))
4149                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
4150 }
4151
4152 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
4153         return lc->net_conf.stun_server;
4154 }
4155
4156 bool_t linphone_core_upnp_available(const LinphoneCore *lc){
4157 #ifdef BUILD_UPNP
4158         return TRUE;
4159 #else
4160         return FALSE;
4161 #endif //BUILD_UPNP
4162 }
4163
4164 LinphoneUpnpState linphone_core_get_upnp_state(const LinphoneCore *lc){
4165 #ifdef BUILD_UPNP
4166         return linphone_upnp_context_get_state(lc->upnp);
4167 #else
4168         return LinphoneUpnpStateNotAvailable;
4169 #endif //BUILD_UPNP
4170 }
4171
4172 const char * linphone_core_get_upnp_external_ipaddress(const LinphoneCore *lc){
4173 #ifdef BUILD_UPNP
4174         return linphone_upnp_context_get_external_ipaddress(lc->upnp);
4175 #else
4176         return NULL;
4177 #endif //BUILD_UPNP
4178 }
4179
4180
4181 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
4182         return lc->net_conf.relay;
4183 }
4184
4185 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
4186         if (lc->net_conf.relay!=NULL){
4187                 ms_free(lc->net_conf.relay);
4188                 lc->net_conf.relay=NULL;
4189         }
4190         if (addr){
4191                 lc->net_conf.relay=ms_strdup(addr);
4192         }
4193         return 0;
4194 }
4195
4196 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
4197 {
4198         if (lc->net_conf.nat_address!=NULL){
4199                 ms_free(lc->net_conf.nat_address);
4200         }
4201         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
4202         else lc->net_conf.nat_address=NULL;
4203         if (lc->sip_conf.contact) update_primary_contact(lc);
4204 }
4205
4206 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
4207         return lc->net_conf.nat_address;
4208 }
4209
4210 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
4211 {
4212         struct sockaddr_storage ss;
4213         socklen_t ss_len;
4214         int error;
4215         char ipstring [INET6_ADDRSTRLEN];
4216
4217         if (lc->net_conf.nat_address==NULL) return NULL;
4218
4219         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
4220                 return lc->net_conf.nat_address;
4221         }
4222
4223         error = getnameinfo((struct sockaddr *)&ss, ss_len,
4224                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
4225         if (error) {
4226                 return lc->net_conf.nat_address;
4227         }
4228
4229         if (lc->net_conf.nat_address_ip!=NULL){
4230                 ms_free(lc->net_conf.nat_address_ip);
4231         }
4232         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
4233         return lc->net_conf.nat_address_ip;
4234 }
4235
4236 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
4237 #ifndef BUILD_UPNP
4238         if(pol == LinphonePolicyUseUpnp) {
4239                 ms_warning("UPNP is not available, reset firewall policy to no firewall");
4240                 pol = LinphonePolicyNoFirewall;
4241         }
4242 #endif //BUILD_UPNP
4243         lc->net_conf.firewall_policy=pol;
4244 #ifdef BUILD_UPNP
4245         if(pol == LinphonePolicyUseUpnp) {
4246                 if(lc->upnp == NULL) {
4247                         lc->upnp = linphone_upnp_context_new(lc);
4248                 }
4249         } else {
4250                 if(lc->upnp != NULL) {
4251                         linphone_upnp_context_destroy(lc->upnp);
4252                         lc->upnp = NULL;
4253                 }
4254         }
4255         linphone_core_enable_keep_alive(lc, (lc->sip_conf.keepalive_period > 0));
4256 #endif //BUILD_UPNP
4257         if (lc->sip_conf.contact) update_primary_contact(lc);
4258         if (linphone_core_ready(lc))
4259                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
4260 }
4261
4262 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
4263         return lc->net_conf.firewall_policy;
4264 }
4265
4266 /**
4267  * Get the list of call logs (past calls).
4268  *
4269  * @ingroup call_logs
4270 **/
4271 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
4272         return lc->call_logs;
4273 }
4274
4275 /**
4276  * Erase the call log.
4277  *
4278  * @ingroup call_logs
4279 **/
4280 void linphone_core_clear_call_logs(LinphoneCore *lc){
4281         lc->missed_calls=0;
4282         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4283         lc->call_logs=ms_list_free(lc->call_logs);
4284         call_logs_write_to_config_file(lc);
4285 }
4286
4287 /**
4288  * Returns number of missed calls.
4289  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
4290 **/
4291 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
4292         return lc->missed_calls;
4293 }
4294
4295 /**
4296  * Resets the counter of missed calls.
4297 **/
4298 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
4299         lc->missed_calls=0;
4300 }
4301
4302 /**
4303  * Remove a specific call log from call history list.
4304  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
4305  * @param lc the linphone core object
4306  * @param a LinphoneCallLog object.
4307 **/
4308 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
4309         lc->call_logs = ms_list_remove(lc->call_logs, cl);
4310         call_logs_write_to_config_file(lc);
4311         linphone_call_log_destroy(cl);
4312 }
4313
4314 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
4315 #ifdef VIDEO_ENABLED
4316         if (val){
4317                 if (lc->previewstream==NULL){
4318                         lc->previewstream=video_preview_new();
4319                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
4320                         if (lc->video_conf.displaytype)
4321                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
4322                         if (lc->preview_window_id!=0)
4323                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
4324                         video_preview_start(lc->previewstream,lc->video_conf.device);
4325                 }
4326         }else{
4327                 if (lc->previewstream!=NULL){
4328                         video_preview_stop(lc->previewstream);
4329                         lc->previewstream=NULL;
4330                 }
4331         }
4332 #endif
4333 }
4334
4335 /**
4336  * Enables video globally.
4337  *
4338  * @ingroup media_parameters
4339  * This function does not have any effect during calls. It just indicates LinphoneCore to
4340  * initiate future calls with video or not. The two boolean parameters indicate in which
4341  * direction video is enabled. Setting both to false disables video entirely.
4342  *
4343  * @param lc The LinphoneCore object
4344  * @param vcap_enabled indicates whether video capture is enabled
4345  * @param display_enabled indicates whether video display should be shown
4346  *
4347 **/
4348 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
4349 #ifndef VIDEO_ENABLED
4350         if (vcap_enabled || display_enabled)
4351                 ms_warning("This version of linphone was built without video support.");
4352 #endif
4353         lc->video_conf.capture=vcap_enabled;
4354         lc->video_conf.display=display_enabled;
4355         if (linphone_core_ready(lc)){
4356                 lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4357                 lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4358         }
4359         /* need to re-apply network bandwidth settings*/
4360         linphone_core_set_download_bandwidth(lc,
4361                 linphone_core_get_download_bandwidth(lc));
4362         linphone_core_set_upload_bandwidth(lc,
4363                 linphone_core_get_upload_bandwidth(lc));
4364 }
4365
4366 bool_t linphone_core_video_supported(LinphoneCore *lc){
4367 #ifdef VIDEO_ENABLED
4368         return TRUE;
4369 #else
4370         return FALSE;
4371 #endif
4372 }
4373
4374 /**
4375  * Returns TRUE if video is enabled, FALSE otherwise.
4376  * @ingroup media_parameters
4377 **/
4378 bool_t linphone_core_video_enabled(LinphoneCore *lc){
4379         return (lc->video_conf.display || lc->video_conf.capture);
4380 }
4381
4382 /**
4383  * Sets the default policy for video.
4384  * This policy defines whether:
4385  * - video shall be initiated by default for outgoing calls
4386  * - video shall be accepter by default for incoming calls
4387  * @ingroup media_parameters
4388 **/
4389 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
4390         lc->video_policy=*policy;
4391         if (linphone_core_ready(lc)){
4392                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
4393                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
4394         }
4395 }
4396
4397 /**
4398  * Get the default policy for video.
4399  * See linphone_core_set_video_policy() for more details.
4400  * @ingroup media_parameters
4401 **/
4402 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
4403         return &lc->video_policy;
4404 }
4405
4406 /**
4407  * Controls video preview enablement.
4408  *
4409  * @ingroup media_parameters
4410  * Video preview refers to the action of displaying the local webcam image
4411  * to the user while not in call.
4412 **/
4413 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
4414         lc->video_conf.show_local=val;
4415         if (linphone_core_ready(lc))
4416                 lp_config_set_int(lc->config,"video","show_local",val);
4417 }
4418
4419 /**
4420  * Returns TRUE if video previewing is enabled.
4421  * @ingroup media_parameters
4422 **/
4423 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
4424         return lc->video_conf.show_local;
4425 }
4426
4427 /**
4428  * Enables or disable self view during calls.
4429  *
4430  * @ingroup media_parameters
4431  * Self-view refers to having local webcam image inserted in corner
4432  * of the video window during calls.
4433  * This function works at any time, including during calls.
4434 **/
4435 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
4436 #ifdef VIDEO_ENABLED
4437         LinphoneCall *call=linphone_core_get_current_call (lc);
4438         lc->video_conf.selfview=val;
4439         if (call && call->videostream){
4440                 video_stream_enable_self_view(call->videostream,val);
4441         }
4442         if (linphone_core_ready(lc)){
4443                 lp_config_set_int(lc->config,"video","self_view",val);
4444         }
4445 #endif
4446 }
4447
4448 /**
4449  * Returns TRUE if self-view is enabled, FALSE otherwise.
4450  *
4451  * @ingroup media_parameters
4452  *
4453  * Refer to linphone_core_enable_self_view() for details.
4454 **/
4455 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
4456         return lc->video_conf.selfview;
4457 }
4458
4459 /**
4460  * Sets the active video device.
4461  *
4462  * @ingroup media_parameters
4463  * @param lc The LinphoneCore object
4464  * @param id the name of the video device as returned by linphone_core_get_video_devices()
4465 **/
4466 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
4467         MSWebCam *olddev=lc->video_conf.device;
4468         const char *vd;
4469         if (id!=NULL){
4470                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
4471                 if (lc->video_conf.device==NULL){
4472                         ms_warning("Could not find video device %s",id);
4473                 }
4474         }
4475         if (lc->video_conf.device==NULL)
4476                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
4477         if (olddev!=NULL && olddev!=lc->video_conf.device){
4478                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
4479         }
4480         if ( linphone_core_ready(lc) && lc->video_conf.device){
4481                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
4482                 if (vd && strstr(vd,"Static picture")!=NULL){
4483                         vd=NULL;
4484                 }
4485                 lp_config_set_string(lc->config,"video","device",vd);
4486         }
4487         return 0;
4488 }
4489
4490 /**
4491  * Returns the name of the currently active video device.
4492  *
4493  * @param lc The LinphoneCore object
4494  * @ingroup media_parameters
4495 **/
4496 const char *linphone_core_get_video_device(const LinphoneCore *lc){
4497         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
4498         return NULL;
4499 }
4500
4501 #ifdef VIDEO_ENABLED
4502 static VideoStream * get_active_video_stream(LinphoneCore *lc){
4503         VideoStream *vs = NULL;
4504         LinphoneCall *call=linphone_core_get_current_call (lc);
4505         /* Select the video stream from the call in the first place */
4506         if (call && call->videostream) {
4507                 vs = call->videostream;
4508         }
4509         /* If not in call, select the video stream from the preview */
4510         if (vs == NULL && lc->previewstream) {
4511                 vs = lc->previewstream;
4512         }
4513         return vs;
4514 }
4515 #endif
4516
4517 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
4518 #ifdef VIDEO_ENABLED
4519         VideoStream *vs=get_active_video_stream(lc);
4520         /* If we have a video stream (either preview, either from call), we
4521                  have a source and it is using the static picture filter, then
4522                  force the filter to use that picture. */
4523         if (vs && vs->source) {
4524                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4525                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4526                                                                                                                 (void *)path);
4527                 }
4528         }
4529         /* Tell the static image filter to use that image from now on so
4530                  that the image will be used next time it has to be read */
4531         ms_static_image_set_default_image(path);
4532 #else
4533         ms_warning("Video support not compiled.");
4534 #endif
4535         return 0;
4536 }
4537
4538 const char *linphone_core_get_static_picture(LinphoneCore *lc) {
4539         const char *path=NULL;
4540 #ifdef VIDEO_ENABLED
4541         path=ms_static_image_get_default_image();
4542 #else
4543         ms_warning("Video support not compiled.");
4544 #endif
4545         return path;
4546 }
4547
4548 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4549 #ifdef VIDEO_ENABLED
4550         VideoStream *vs = NULL;
4551
4552         vs=get_active_video_stream(lc);
4553
4554         /* If we have a video stream (either preview, either from call), we
4555                  have a source and it is using the static picture filter, then
4556                  force the filter to use that picture. */
4557         if (vs && vs->source) {
4558                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4559                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4560                 }
4561         }
4562 #else
4563         ms_warning("Video support not compiled.");
4564 #endif
4565         return 0;
4566 }
4567
4568 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4569 #ifdef VIDEO_ENABLED
4570         VideoStream *vs = NULL;
4571         vs=get_active_video_stream(lc);
4572         /* If we have a video stream (either preview, either from call), we
4573                  have a source and it is using the static picture filter, then
4574                  force the filter to use that picture. */
4575         if (vs && vs->source) {
4576                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4577
4578                         float fps;
4579
4580                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4581                         return fps;
4582                 }
4583         }
4584 #else
4585         ms_warning("Video support not compiled.");
4586 #endif
4587         return 0;
4588 }
4589
4590 /**
4591  * Returns the native window handle of the video window, casted as an unsigned long.
4592  *
4593  * @ingroup media_parameters
4594 **/
4595 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4596 #ifdef VIDEO_ENABLED
4597         LinphoneCall *call=linphone_core_get_current_call (lc);
4598         if (call && call->videostream)
4599                 return video_stream_get_native_window_id(call->videostream);
4600         if (lc->previewstream)
4601                 return video_stream_get_native_window_id(lc->previewstream);
4602 #endif
4603         return lc->video_window_id;
4604 }
4605
4606 /**@ingroup media_parameters
4607  * Set the native video window id where the video is to be displayed.
4608  * If not set the core will create its own window.
4609 **/
4610 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4611 #ifdef VIDEO_ENABLED
4612         LinphoneCall *call=linphone_core_get_current_call(lc);
4613         lc->video_window_id=id;
4614         if (call!=NULL && call->videostream){
4615                 video_stream_set_native_window_id(call->videostream,id);
4616         }
4617 #endif
4618 }
4619
4620 /**
4621  * Returns the native window handle of the video preview window, casted as an unsigned long.
4622  *
4623  * @ingroup media_parameters
4624 **/
4625 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4626 #ifdef VIDEO_ENABLED
4627         LinphoneCall *call=linphone_core_get_current_call (lc);
4628         if (call && call->videostream)
4629                 return video_stream_get_native_preview_window_id(call->videostream);
4630         if (lc->previewstream)
4631                 return video_preview_get_native_window_id(lc->previewstream);
4632 #endif
4633         return lc->preview_window_id;
4634 }
4635
4636 /**
4637  * @ingroup media_parameters
4638  * Set the native window id where the preview video (local camera) is to be displayed.
4639  * This has to be used in conjonction with linphone_core_use_preview_window().
4640  * If not set the core will create its own window.
4641 **/
4642 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4643         lc->preview_window_id=id;
4644 #ifdef VIDEO_ENABLED
4645         LinphoneCall *call=linphone_core_get_current_call(lc);
4646         if (call!=NULL && call->videostream){
4647                 video_stream_set_native_preview_window_id(call->videostream,id);
4648         }else if (lc->previewstream){
4649                 video_preview_set_native_window_id(lc->previewstream,id);
4650         }
4651 #endif
4652 }
4653
4654 /**
4655  * Can be used to disable video showing to free XV port
4656 **/
4657 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4658 #ifdef VIDEO_ENABLED
4659         ms_error("linphone_core_show_video %d", show);
4660         LinphoneCall *call=linphone_core_get_current_call(lc);
4661         if (call!=NULL && call->videostream){
4662                 video_stream_show_video(call->videostream,show);
4663         }
4664 #endif
4665 }
4666
4667 /**
4668  * Tells the core to use a separate window for local camera preview video, instead of
4669  * inserting local view within the remote video window.
4670  *
4671 **/
4672 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4673         lc->use_preview_window=yesno;
4674 }
4675 /**
4676  * @ingroup media_parameters
4677  *returns current device orientation
4678  */
4679 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4680         return lc->device_rotation;
4681 }
4682 /**
4683  * @ingroup media_parameters
4684  * Tells the core the device current orientation. This can be used by capture filters
4685  * on mobile devices to select between portrait/landscape mode and to produce properly
4686  * oriented images. The exact meaning of the value in rotation if left to each device
4687  * specific implementations.
4688  *@param lc  object.
4689  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4690  *
4691 **/
4692 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4693 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4694         lc->device_rotation = rotation;
4695 #ifdef VIDEO_ENABLED
4696         LinphoneCall *call=linphone_core_get_current_call(lc);
4697         if (call!=NULL && call->videostream){
4698                 video_stream_set_device_rotation(call->videostream,rotation);
4699         }
4700 #endif
4701 }
4702
4703 static MSVideoSizeDef supported_resolutions[]={
4704 #ifdef ENABLE_HD
4705         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4706         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4707 #endif
4708         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4709         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4710         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4711         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4712         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4713         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4714         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4715         {       {0,0}                   ,       NULL    }
4716 };
4717
4718 /**
4719  * Returns the zero terminated table of supported video resolutions.
4720  *
4721  * @ingroup media_parameters
4722 **/
4723 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4724         return supported_resolutions;
4725 }
4726
4727 static MSVideoSize video_size_get_by_name(const char *name){
4728         MSVideoSizeDef *pdef=supported_resolutions;
4729         MSVideoSize null_vsize={0,0};
4730         for(;pdef->name!=NULL;pdef++){
4731                 if (strcasecmp(name,pdef->name)==0){
4732                         return pdef->vsize;
4733                 }
4734         }
4735         ms_warning("Video resolution %s is not supported in linphone.",name);
4736         return null_vsize;
4737 }
4738
4739 static const char *video_size_get_name(MSVideoSize vsize){
4740         MSVideoSizeDef *pdef=supported_resolutions;
4741         for(;pdef->name!=NULL;pdef++){
4742                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4743                         return pdef->name;
4744                 }
4745         }
4746         return NULL;
4747 }
4748
4749 static bool_t video_size_supported(MSVideoSize vsize){
4750         if (video_size_get_name(vsize)) return TRUE;
4751         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4752         return FALSE;
4753 }
4754
4755 /**
4756  * Sets the preferred video size.
4757  *
4758  * @ingroup media_parameters
4759  * This applies only to the stream that is captured and sent to the remote party,
4760  * since we accept all standard video size on the receive path.
4761 **/
4762 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4763         if (video_size_supported(vsize)){
4764                 MSVideoSize oldvsize=lc->video_conf.vsize;
4765                 lc->video_conf.vsize=vsize;
4766                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4767                         toggle_video_preview(lc,FALSE);
4768                         toggle_video_preview(lc,TRUE);
4769                 }
4770                 if ( linphone_core_ready(lc))
4771                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4772         }
4773 }
4774
4775 /**
4776  * Sets the preferred video size by its name.
4777  *
4778  * @ingroup media_parameters
4779  * This is identical to linphone_core_set_preferred_video_size() except
4780  * that it takes the name of the video resolution as input.
4781  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4782 **/
4783 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4784         MSVideoSize vsize=video_size_get_by_name(name);
4785         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4786         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4787         else linphone_core_set_preferred_video_size(lc,default_vsize);
4788 }
4789
4790 /**
4791  * Returns the current preferred video size for sending.
4792  *
4793  * @ingroup media_parameters
4794 **/
4795 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4796         return lc->video_conf.vsize;
4797 }
4798
4799 /**
4800  * Ask the core to stream audio from and to files, instead of using the soundcard.
4801 **/
4802 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4803         lc->use_files=yesno;
4804 }
4805
4806 /**
4807  * Sets a wav file to be played when putting somebody on hold,
4808  * or when files are used instead of soundcards (see linphone_core_use_files()).
4809  *
4810  * The file must be a 16 bit linear wav file.
4811 **/
4812 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4813         LinphoneCall *call=linphone_core_get_current_call(lc);
4814         if (lc->play_file!=NULL){
4815                 ms_free(lc->play_file);
4816                 lc->play_file=NULL;
4817         }
4818         if (file!=NULL) {
4819                 lc->play_file=ms_strdup(file);
4820                 if (call && call->audiostream && call->audiostream->ms.ticker)
4821                         audio_stream_play(call->audiostream,file);
4822         }
4823 }
4824
4825
4826 /**
4827  * Sets a wav file where incoming stream is to be recorded,
4828  * when files are used instead of soundcards (see linphone_core_use_files()).
4829  *
4830  * This feature is different from call recording (linphone_call_params_set_record_file())
4831  * The file will be a 16 bit linear wav file.
4832 **/
4833 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4834         LinphoneCall *call=linphone_core_get_current_call(lc);
4835         if (lc->rec_file!=NULL){
4836                 ms_free(lc->rec_file);
4837                 lc->rec_file=NULL;
4838         }
4839         if (file!=NULL) {
4840                 lc->rec_file=ms_strdup(file);
4841                 if (call && call->audiostream)
4842                         audio_stream_record(call->audiostream,file);
4843         }
4844 }
4845
4846
4847 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4848         LinphoneCall *call=linphone_core_get_current_call (lc);
4849         AudioStream *stream=NULL;
4850         if (call){
4851                 stream=call->audiostream;
4852         }else if (linphone_core_is_in_conference(lc)){
4853                 stream=lc->conf_ctx.local_participant;
4854         }
4855         if (stream){
4856                 return stream->dtmfgen;
4857         }
4858         if (lc->ringstream==NULL){
4859                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4860                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4861                 if (ringcard == NULL)
4862                         return NULL;
4863
4864                 lc->ringstream=ring_start(NULL,0,ringcard);
4865                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4866                 lc->dmfs_playing_start_time=time(NULL);
4867         }else{
4868                 if (lc->dmfs_playing_start_time!=0)
4869                         lc->dmfs_playing_start_time=time(NULL);
4870         }
4871         return lc->ringstream->gendtmf;
4872 }
4873
4874 /**
4875  * @ingroup media_parameters
4876  * Plays a dtmf sound to the local user.
4877  * @param lc #LinphoneCore
4878  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4879  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4880 **/
4881 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4882         MSFilter *f=get_dtmf_gen(lc);
4883         if (f==NULL){
4884                 ms_error("No dtmf generator at this time !");
4885                 return;
4886         }
4887
4888         if (duration_ms>0)
4889                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4890         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4891 }
4892
4893 /**
4894  * @ingroup media_parameters
4895  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4896  * @param lc #LinphoneCore
4897 **/
4898 void linphone_core_play_tone(LinphoneCore *lc){
4899         MSFilter *f=get_dtmf_gen(lc);
4900         MSDtmfGenCustomTone def;
4901         if (f==NULL){
4902                 ms_error("No dtmf generator at this time !");
4903                 return;
4904         }
4905         def.duration=300;
4906         def.frequency=500;
4907         def.amplitude=1;
4908         def.interval=2000;
4909         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4910 }
4911
4912 /**
4913  * @ingroup media_parameters
4914  *
4915  * Stops playing a dtmf started by linphone_core_play_dtmf().
4916 **/
4917 void linphone_core_stop_dtmf(LinphoneCore *lc){
4918         MSFilter *f=get_dtmf_gen(lc);
4919         if (f!=NULL)
4920                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4921 }
4922
4923
4924
4925 /**
4926  * Retrieves the user pointer that was given to linphone_core_new()
4927  *
4928  * @ingroup initializing
4929 **/
4930 void *linphone_core_get_user_data(LinphoneCore *lc){
4931         return lc->data;
4932 }
4933
4934
4935 /**
4936  * Associate a user pointer to the linphone core.
4937  *
4938  * @ingroup initializing
4939 **/
4940 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4941         lc->data=userdata;
4942 }
4943
4944 int linphone_core_get_mtu(const LinphoneCore *lc){
4945         return lc->net_conf.mtu;
4946 }
4947
4948 /**
4949  * Sets the maximum transmission unit size in bytes.
4950  * This information is useful for sending RTP packets.
4951  * Default value is 1500.
4952  *
4953  * @ingroup media_parameters
4954 **/
4955 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4956         lc->net_conf.mtu=mtu;
4957         if (mtu>0){
4958                 if (mtu<500){
4959                         ms_error("MTU too small !");
4960                         mtu=500;
4961                 }
4962                 ms_set_mtu(mtu);
4963                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4964         }else ms_set_mtu(0);//use mediastreamer2 default value
4965 }
4966
4967 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4968         lc->wait_cb=cb;
4969         lc->wait_ctx=user_context;
4970 }
4971
4972 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4973         if (lc->wait_cb){
4974                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4975         }
4976 }
4977
4978 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4979         if (lc->wait_cb){
4980                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4981         }else{
4982 #ifdef WIN32
4983                 Sleep(50000);
4984 #else
4985                 usleep(50000);
4986 #endif
4987         }
4988 }
4989
4990 void linphone_core_stop_waiting(LinphoneCore *lc){
4991         if (lc->wait_cb){
4992                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4993         }
4994 }
4995
4996 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4997         lc->rtptf=factories;
4998 }
4999
5000 /**
5001  * Retrieve RTP statistics regarding current call.
5002  * @param local RTP statistics computed locally.
5003  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
5004  *
5005  * @note Remote RTP statistics is not implemented yet.
5006  *
5007  * @returns 0 or -1 if no call is running.
5008 **/
5009
5010 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
5011         LinphoneCall *call=linphone_core_get_current_call (lc);
5012         if (call!=NULL){
5013                 if (call->audiostream!=NULL){
5014                         memset(remote,0,sizeof(*remote));
5015                         audio_stream_get_local_rtp_stats (call->audiostream,local);
5016                         return 0;
5017                 }
5018         }
5019         return -1;
5020 }
5021
5022 void net_config_uninit(LinphoneCore *lc)
5023 {
5024         net_config_t *config=&lc->net_conf;
5025
5026         if (config->stun_server!=NULL){
5027                 ms_free(lc->net_conf.stun_server);
5028         }
5029         if (config->nat_address!=NULL){
5030                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
5031                 ms_free(lc->net_conf.nat_address);
5032         }
5033         if (lc->net_conf.nat_address_ip !=NULL){
5034                 ms_free(lc->net_conf.nat_address_ip);
5035         }
5036         lp_config_set_int(lc->config,"net","mtu",config->mtu);
5037 }
5038
5039
5040 void sip_config_uninit(LinphoneCore *lc)
5041 {
5042         MSList *elem;
5043         int i;
5044         sip_config_t *config=&lc->sip_conf;
5045
5046         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
5047         lp_config_set_string(lc->config,"sip","contact",config->contact);
5048         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
5049         lp_config_set_int(lc->config,"sip","in_call_timeout",config->in_call_timeout);
5050         lp_config_set_int(lc->config,"sip","delayed_timeout",config->delayed_timeout);
5051         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
5052         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
5053         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
5054         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
5055         lp_config_set_int(lc->config,"sip","register_only_when_upnp_is_ok",config->register_only_when_upnp_is_ok);
5056
5057
5058
5059         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
5060                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
5061                 linphone_proxy_config_edit(cfg);        /* to unregister */
5062         }
5063
5064         for (i=0;i<20;i++){
5065                 sal_iterate(lc->sal);
5066 #ifndef WIN32
5067                 usleep(100000);
5068 #else
5069                 Sleep(100);
5070 #endif
5071         }
5072
5073         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
5074         ms_list_free(config->proxies);
5075         config->proxies=NULL;
5076
5077         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
5078
5079         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
5080         ms_list_free(lc->auth_info);
5081         lc->auth_info=NULL;
5082
5083         sal_uninit(lc->sal);
5084         lc->sal=NULL;
5085
5086         if (lc->sip_conf.guessed_contact)
5087                 ms_free(lc->sip_conf.guessed_contact);
5088         if (config->contact)
5089                 ms_free(config->contact);
5090
5091 }
5092
5093 void rtp_config_uninit(LinphoneCore *lc)
5094 {
5095         rtp_config_t *config=&lc->rtp_conf;
5096         if (config->audio_rtp_min_port == config->audio_rtp_max_port) {
5097                 lp_config_set_int(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port);
5098         } else {
5099                 lp_config_set_range(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port, config->audio_rtp_max_port);
5100         }
5101         if (config->video_rtp_min_port == config->video_rtp_max_port) {
5102                 lp_config_set_int(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port);
5103         } else {
5104                 lp_config_set_range(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port, config->video_rtp_max_port);
5105         }
5106         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
5107         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
5108         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
5109         lp_config_set_int(lc->config,"rtp","audio_adaptive_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
5110         lp_config_set_int(lc->config,"rtp","video_adaptive_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
5111 }
5112
5113 static void sound_config_uninit(LinphoneCore *lc)
5114 {
5115         sound_config_t *config=&lc->sound_conf;
5116         ms_free(config->cards);
5117
5118         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
5119         lp_config_set_float(lc->config,"sound","playback_gain_db",config->soft_play_lev);
5120         lp_config_set_float(lc->config,"sound","mic_gain_db",config->soft_mic_lev);
5121
5122         if (config->local_ring) ms_free(config->local_ring);
5123         if (config->remote_ring) ms_free(config->remote_ring);
5124         ms_snd_card_manager_destroy();
5125 }
5126
5127 static void video_config_uninit(LinphoneCore *lc)
5128 {
5129         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
5130         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
5131         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
5132         if (lc->video_conf.cams)
5133                 ms_free(lc->video_conf.cams);
5134 }
5135
5136 void _linphone_core_codec_config_write(LinphoneCore *lc){
5137         if (linphone_core_ready(lc)){
5138                 PayloadType *pt;
5139                 codecs_config_t *config=&lc->codecs_conf;
5140                 MSList *node;
5141                 char key[50];
5142                 int index;
5143                 index=0;
5144                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
5145                         pt=(PayloadType*)(node->data);
5146                         sprintf(key,"audio_codec_%i",index);
5147                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5148                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5149                         lp_config_set_int(lc->config,key,"channels",pt->channels);
5150                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5151                         index++;
5152                 }
5153                 sprintf(key,"audio_codec_%i",index);
5154                 lp_config_clean_section (lc->config,key);
5155
5156                 index=0;
5157                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
5158                         pt=(PayloadType*)(node->data);
5159                         sprintf(key,"video_codec_%i",index);
5160                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5161                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5162                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5163                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
5164                         index++;
5165                 }
5166                 sprintf(key,"video_codec_%i",index);
5167                 lp_config_clean_section (lc->config,key);
5168         }
5169 }
5170
5171 static void codecs_config_uninit(LinphoneCore *lc)
5172 {
5173         _linphone_core_codec_config_write(lc);
5174         ms_list_free(lc->codecs_conf.audio_codecs);
5175         ms_list_free(lc->codecs_conf.video_codecs);
5176 }
5177
5178 void ui_config_uninit(LinphoneCore* lc)
5179 {
5180         if (lc->friends){
5181                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
5182                 ms_list_free(lc->friends);
5183                 lc->friends=NULL;
5184         }
5185 }
5186
5187 /**
5188  * Returns the LpConfig object used to manage the storage (config) file.
5189  *
5190  * @ingroup misc
5191  * The application can use the LpConfig object to insert its own private
5192  * sections and pairs of key=value in the configuration file.
5193  *
5194 **/
5195 LpConfig *linphone_core_get_config(LinphoneCore *lc){
5196         return lc->config;
5197 }
5198
5199 static void linphone_core_uninit(LinphoneCore *lc)
5200 {
5201         linphone_core_free_hooks(lc);
5202         while(lc->calls)
5203         {
5204                 LinphoneCall *the_call = lc->calls->data;
5205                 linphone_core_terminate_call(lc,the_call);
5206                 linphone_core_iterate(lc);
5207 #ifdef WIN32
5208                 Sleep(50000);
5209 #else
5210                 usleep(50000);
5211 #endif
5212         }
5213 #ifdef BUILD_UPNP
5214         if(lc->upnp != NULL) {
5215                 linphone_upnp_context_destroy(lc->upnp);
5216                 lc->upnp = NULL;
5217         }
5218 #endif //BUILD_UPNP
5219
5220         if (lc->friends)
5221                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
5222         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
5223 #ifdef VIDEO_ENABLED
5224         if (lc->previewstream!=NULL){
5225                 video_preview_stop(lc->previewstream);
5226                 lc->previewstream=NULL;
5227         }
5228 #endif
5229         ms_event_queue_destroy(lc->msevq);
5230         lc->msevq=NULL;
5231         /* save all config */
5232         net_config_uninit(lc);
5233         rtp_config_uninit(lc);
5234         if (lc->ringstream) ring_stop(lc->ringstream);
5235         sound_config_uninit(lc);
5236         video_config_uninit(lc);
5237         codecs_config_uninit(lc);
5238         ui_config_uninit(lc);
5239         sip_config_uninit(lc);
5240         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
5241         lp_config_destroy(lc->config);
5242         lc->config = NULL; /* Mark the config as NULL to block further calls */
5243         sip_setup_unregister_all();
5244
5245         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
5246         lc->call_logs=ms_list_free(lc->call_logs);
5247
5248         ms_list_for_each(lc->last_recv_msg_ids,ms_free);
5249         lc->last_recv_msg_ids=ms_list_free(lc->last_recv_msg_ids);
5250
5251         // Free struct variable
5252         if(lc->zrtp_secrets_cache != NULL) {
5253                 ms_free(lc->zrtp_secrets_cache);
5254         }
5255         if(lc->play_file!=NULL){
5256                 ms_free(lc->play_file);
5257         }
5258         if(lc->rec_file!=NULL){
5259                 ms_free(lc->rec_file);
5260         }
5261
5262         linphone_core_free_payload_types(lc);
5263         ortp_exit();
5264         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
5265 #ifdef TUNNEL_ENABLED
5266         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
5267 #endif
5268 }
5269
5270 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
5271         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
5272         // second get the list of available proxies
5273         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5274         for(;elem!=NULL;elem=elem->next){
5275                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5276                 if (linphone_proxy_config_register_enabled(cfg) ) {
5277                         if (!isReachable) {
5278                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
5279                         }else{
5280                                 cfg->commit=TRUE;
5281                         }
5282                 }
5283         }
5284         lc->netup_time=curtime;
5285         lc->network_reachable=isReachable;
5286         if(!isReachable) {
5287                 sal_reset_transports(lc->sal);
5288         }
5289 }
5290
5291 void linphone_core_refresh_registers(LinphoneCore* lc) {
5292         const MSList *elem;
5293         if (!lc->network_reachable) {
5294                 ms_warning("Refresh register operation not available (network unreachable)");
5295                 return;
5296         }
5297         elem=linphone_core_get_proxy_config_list(lc);
5298         for(;elem!=NULL;elem=elem->next){
5299                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5300                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
5301                         linphone_proxy_config_refresh_register(cfg);
5302                 }
5303         }
5304 }
5305
5306 void __linphone_core_invalidate_registers(LinphoneCore* lc){
5307         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5308         for(;elem!=NULL;elem=elem->next){
5309                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5310                 if (linphone_proxy_config_register_enabled(cfg)) {
5311                         linphone_proxy_config_edit(cfg);
5312                         linphone_proxy_config_done(cfg);
5313                 }
5314         }
5315 }
5316
5317 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
5318         //first disable automatic mode
5319         if (lc->auto_net_state_mon) {
5320                 ms_message("Disabling automatic network state monitoring");
5321                 lc->auto_net_state_mon=FALSE;
5322         }
5323         set_network_reachable(lc,isReachable, ms_time(NULL));
5324 }
5325
5326 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
5327         return lc->network_reachable;
5328 }
5329 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
5330         return sal_get_socket(lc->sal);
5331 }
5332 /**
5333  * Destroys a LinphoneCore
5334  *
5335  * @ingroup initializing
5336 **/
5337 void linphone_core_destroy(LinphoneCore *lc){
5338         linphone_core_uninit(lc);
5339         ms_free(lc);
5340 }
5341 /**
5342  * Get the number of Call
5343  *
5344  * @ingroup call_control
5345 **/
5346 int linphone_core_get_calls_nb(const LinphoneCore *lc){
5347         return  ms_list_size(lc->calls);;
5348 }
5349
5350 /**
5351  * Check if we do not have exceed the number of simultaneous call
5352  *
5353  * @ingroup call_control
5354 **/
5355 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
5356 {
5357         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
5358                 return TRUE;
5359         ms_message("Maximum amount of simultaneous calls reached !");
5360         return FALSE;
5361 }
5362
5363
5364 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
5365 {
5366         if(linphone_core_can_we_add_call(lc))
5367         {
5368                 lc->calls = ms_list_append(lc->calls,call);
5369                 return 0;
5370         }
5371         return -1;
5372 }
5373
5374 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
5375 {
5376         MSList *it;
5377         MSList *the_calls = lc->calls;
5378
5379         it=ms_list_find(the_calls,call);
5380         if (it)
5381         {
5382                 the_calls = ms_list_remove_link(the_calls,it);
5383         }
5384         else
5385         {
5386                 ms_warning("could not find the call into the list\n");
5387                 return -1;
5388         }
5389         lc->calls = the_calls;
5390         return 0;
5391 }
5392
5393 /**
5394  * Specifiies a ring back tone to be played to far end during incoming calls.
5395 **/
5396 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
5397         if (lc->sound_conf.ringback_tone){
5398                 ms_free(lc->sound_conf.ringback_tone);
5399                 lc->sound_conf.ringback_tone=NULL;
5400         }
5401         if (file)
5402                 lc->sound_conf.ringback_tone=ms_strdup(file);
5403 }
5404
5405 /**
5406  * Returns the ring back tone played to far end during incoming calls.
5407 **/
5408 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
5409         return lc->sound_conf.ringback_tone;
5410 }
5411
5412 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
5413         const MSList *elem;
5414         for(elem=from;elem!=NULL;elem=elem->next){
5415                 PayloadType *pt=(PayloadType*)elem->data;
5416                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
5417                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
5418                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
5419                         return pt;
5420                 }
5421         }
5422         return NULL;
5423 }
5424
5425
5426 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
5427         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
5428         if (result)  {
5429                 return result;
5430         } else {
5431                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
5432                 if (result) {
5433                         return result;
5434                 }
5435         }
5436         /*not found*/
5437         return NULL;
5438 }
5439
5440 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
5441         switch(gs){
5442                 case LinphoneGlobalOff:
5443                         return "LinphoneGlobalOff";
5444                 break;
5445                 case LinphoneGlobalOn:
5446                         return "LinphoneGlobalOn";
5447                 break;
5448                 case LinphoneGlobalStartup:
5449                         return "LinphoneGlobalStartup";
5450                 break;
5451                 case LinphoneGlobalShutdown:
5452                         return "LinphoneGlobalShutdown";
5453                 break;
5454         }
5455         return NULL;
5456 }
5457
5458 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
5459         return lc->state;
5460 }
5461
5462 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
5463         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
5464         linphone_core_init_default_params(lc, p);
5465         return p;
5466 }
5467
5468 const char *linphone_reason_to_string(LinphoneReason err){
5469         switch(err){
5470                 case LinphoneReasonNone:
5471                         return "No error";
5472                 case LinphoneReasonNoResponse:
5473                         return "No response";
5474                 case LinphoneReasonBadCredentials:
5475                         return "Bad credentials";
5476                 case LinphoneReasonDeclined:
5477                         return "Call declined";
5478                 case LinphoneReasonNotFound:
5479                         return "User not found";
5480                 case LinphoneReasonNotAnswered:
5481                         return "Not answered";
5482                 case LinphoneReasonBusy:
5483                         return "Busy";
5484         }
5485         return "unknown error";
5486 }
5487
5488 const char *linphone_error_to_string(LinphoneReason err){
5489         return linphone_reason_to_string(err);
5490 }
5491 /**
5492  * Enables signaling keep alive
5493  */
5494 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
5495 #ifdef BUILD_UPNP
5496         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp) {
5497                 enable = FALSE;
5498         }
5499 #endif //BUILD_UPNP
5500         if (enable > 0) {
5501                 sal_use_tcp_tls_keepalive(lc->sal,lc->sip_conf.tcp_tls_keepalive);
5502                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
5503         } else {
5504                 sal_set_keepalive_period(lc->sal,0);
5505         }
5506 }
5507 /**
5508  * Is signaling keep alive enabled
5509  */
5510 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
5511         return sal_get_keepalive_period(lc->sal) > 0;
5512 }
5513
5514 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
5515         get_dtmf_gen(lc); /*make sure ring stream is started*/
5516         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
5517 }
5518
5519 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
5520         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
5521                 ring_stop(lc->ringstream);
5522                 lc->ringstream=NULL;
5523         }
5524 }
5525
5526 int linphone_core_get_max_calls(LinphoneCore *lc) {
5527         return lc->max_calls;
5528 }
5529 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
5530         lc->max_calls=max;
5531 }
5532
5533 typedef struct Hook{
5534         LinphoneCoreIterateHook fun;
5535         void *data;
5536 }Hook;
5537
5538 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
5539         Hook *h=ms_new(Hook,1);
5540         h->fun=hook;
5541         h->data=hook_data;
5542         return h;
5543 }
5544
5545 static void hook_invoke(Hook *h){
5546         h->fun(h->data);
5547 }
5548
5549 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5550         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
5551 }
5552
5553 static void linphone_core_run_hooks(LinphoneCore *lc){
5554         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
5555 }
5556
5557 static void linphone_core_free_hooks(LinphoneCore *lc){
5558         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
5559         ms_list_free(lc->hooks);
5560         lc->hooks=NULL;
5561 }
5562
5563 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5564         MSList *elem;
5565         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
5566                 Hook *h=(Hook*)elem->data;
5567                 if (h->fun==hook && h->data==hook_data){
5568                         lc->hooks = ms_list_remove_link(lc->hooks,elem);
5569                         ms_free(h);
5570                         return;
5571                 }
5572         }
5573         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
5574 }
5575
5576 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
5577         if (lc->zrtp_secrets_cache != NULL) {
5578                 ms_free(lc->zrtp_secrets_cache);
5579         }
5580         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
5581 }
5582
5583 const char *linphone_core_get_zrtp_secrets_file(LinphoneCore *lc){
5584         return lc->zrtp_secrets_cache;
5585 }
5586
5587 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
5588         if (uri == NULL) return NULL;
5589         MSList *calls=lc->calls;
5590         while(calls) {
5591                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5592                 calls=calls->next;
5593                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5594                 char *current_uri=linphone_address_as_string_uri_only(address);
5595                 if (strcmp(uri,current_uri)==0) {
5596                         ms_free(current_uri);
5597                         return c;
5598                 } else {
5599                         ms_free(current_uri);
5600                 }
5601         }
5602         return NULL;
5603 }
5604
5605
5606 /**
5607  * Check if a call will need the sound resources.
5608  *
5609  * @ingroup call_control
5610  * @param lc The LinphoneCore
5611 **/
5612 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5613         MSList *calls=lc->calls;
5614         while(calls) {
5615                 LinphoneCall *c=(LinphoneCall*)calls->data;
5616                 calls=calls->next;
5617                 switch (c->state) {
5618                         case LinphoneCallOutgoingInit:
5619                         case LinphoneCallOutgoingProgress:
5620                         case LinphoneCallOutgoingRinging:
5621                         case LinphoneCallOutgoingEarlyMedia:
5622                         case LinphoneCallConnected:
5623                         case LinphoneCallRefered:
5624                         case LinphoneCallIncomingEarlyMedia:
5625                         case LinphoneCallUpdating:
5626                                 return TRUE;
5627                         default:
5628                                 break;
5629                 }
5630         }
5631         return FALSE;
5632 }
5633
5634 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5635         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5636 }
5637
5638 /**
5639  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5640 **/
5641 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5642         switch(menc){
5643                 case LinphoneMediaEncryptionSRTP:
5644                         return ortp_srtp_supported();
5645                 case LinphoneMediaEncryptionZRTP:
5646                         return ortp_zrtp_available();
5647                 case LinphoneMediaEncryptionNone:
5648                         return TRUE;
5649         }
5650         return FALSE;
5651 }
5652
5653 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5654         const char *type="none";
5655         int ret=0;
5656         if (menc == LinphoneMediaEncryptionSRTP){
5657                 if (!ortp_srtp_supported()){
5658                         ms_warning("SRTP not supported by library.");
5659                         type="none";
5660                         ret=-1;
5661                 }else type="srtp";
5662         }else if (menc == LinphoneMediaEncryptionZRTP){
5663                 if (!ortp_zrtp_available()){
5664                         ms_warning("ZRTP not supported by library.");
5665                         type="none";
5666                         ret=-1;
5667                 }else type="zrtp";
5668         }
5669         lp_config_set_string(lc->config,"sip","media_encryption",type);
5670         return ret;
5671 }
5672
5673 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5674         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5675
5676         if (menc == NULL)
5677                 return LinphoneMediaEncryptionNone;
5678         else if (strcmp(menc, "srtp")==0)
5679                 return LinphoneMediaEncryptionSRTP;
5680         else if (strcmp(menc, "zrtp")==0)
5681                 return LinphoneMediaEncryptionZRTP;
5682         else
5683                 return LinphoneMediaEncryptionNone;
5684 }
5685
5686 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5687         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5688 }
5689
5690 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5691         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5692 }
5693
5694 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5695         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5696         params->media_encryption=linphone_core_get_media_encryption(lc);
5697         params->in_conference=FALSE;
5698 }
5699
5700 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5701         if (lc->device_id) ms_free(lc->device_id);
5702         lc->device_id=ms_strdup(device_id);
5703 }
5704 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5705         return lc->device_id;
5706 }
5707
5708 /**
5709  * Set the DSCP field for SIP signaling channel.
5710  *
5711  * @ingroup network_parameters
5712  * * The DSCP defines the quality of service in IP packets.
5713  *
5714 **/
5715 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5716         sal_set_dscp(lc->sal,dscp);
5717         if (linphone_core_ready(lc)){
5718                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5719                 apply_transports(lc);
5720         }
5721 }
5722
5723 /**
5724  * Get the DSCP field for SIP signaling channel.
5725  *
5726  * @ingroup network_parameters
5727  * * The DSCP defines the quality of service in IP packets.
5728  *
5729 **/
5730 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5731         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5732 }
5733
5734 /**
5735  * Set the DSCP field for outgoing audio streams.
5736  *
5737  * @ingroup network_parameters
5738  * The DSCP defines the quality of service in IP packets.
5739  *
5740 **/
5741 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5742         if (linphone_core_ready(lc))
5743                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5744 }
5745
5746 /**
5747  * Get the DSCP field for outgoing audio streams.
5748  *
5749  * @ingroup network_parameters
5750  * The DSCP defines the quality of service in IP packets.
5751  *
5752 **/
5753 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5754         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5755 }
5756
5757 /**
5758  * Set the DSCP field for outgoing video streams.
5759  *
5760  * @ingroup network_parameters
5761  * The DSCP defines the quality of service in IP packets.
5762  *
5763 **/
5764 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5765         if (linphone_core_ready(lc))
5766                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5767
5768 }
5769
5770 /**
5771  * Get the DSCP field for outgoing video streams.
5772  *
5773  * @ingroup network_parameters
5774  * The DSCP defines the quality of service in IP packets.
5775  *
5776 **/
5777 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5778         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5779 }