sjero.net Git - linphone/blob - coreapi/linphonecore.c

   1 /*
   2 linphone
   3 Copyright (C) 2000  Simon MORLAT (simon.morlat@linphone.org)
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19
  20 #define _GNU_SOURCE
  21
  22 #include "linphonecore.h"
  23 #include "sipsetup.h"
  24 #include "lpconfig.h"
  25 #include "private.h"
  26
  27 #include <math.h>
  28 #include <ortp/telephonyevents.h>
  29 #include <ortp/zrtp.h>
  30 #include "mediastreamer2/mediastream.h"
  31 #include "mediastreamer2/mseventqueue.h"
  32 #include "mediastreamer2/msvolume.h"
  33 #include "mediastreamer2/msequalizer.h"
  34 #include "mediastreamer2/dtmfgen.h"
  35
  36 #ifdef INET6
  37 #ifndef WIN32
  38 #include <netdb.h>
  39 #endif
  40 #endif
  41
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #include "liblinphone_gitversion.h"
  45 #else
  46 #ifndef LIBLINPHONE_GIT_VERSION
  47 #define LIBLINPHONE_GIT_VERSION "unknown"
  48 #endif
  49 #endif
  50
  51
  52 /*#define UNSTANDART_GSM_11K 1*/
  53
  54 #define ROOT_CA_FILE PACKAGE_DATA_DIR "/linphone/rootca.pem"
  55
  56 static const char *liblinphone_version=
  57 #ifdef LIBLINPHONE_GIT_VERSION
  58         LIBLINPHONE_GIT_VERSION
  59 #else
  60         LIBLINPHONE_VERSION
  61 #endif
  62 ;
  63 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
  64 static void linphone_core_run_hooks(LinphoneCore *lc);
  65 static void linphone_core_free_hooks(LinphoneCore *lc);
  66
  67 #include "enum.h"
  68
  69 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
  70 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
  71
  72 /* relative path where is stored local ring*/
  73 #define LOCAL_RING "rings/oldphone.wav"
  74 /* same for remote ring (ringback)*/
  75 #define REMOTE_RING "ringback.wav"
  76 #define HOLD_MUSIC "rings/toy-mono.wav"
  77
  78
  79 extern SalCallbacks linphone_sal_callbacks;
  80
  81 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
  82 {
  83   obj->_func=func;
  84   obj->_user_data=ud;
  85 }
  86
  87 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
  88         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
  89         return 0;
  90 }
  91
  92
  93 /*prevent a gcc bug with %c*/
  94 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
  95 #if !defined(_WIN32_WCE)
  96         return strftime(s, max, fmt, tm);
  97 #else
  98         return 0;
  99         /*FIXME*/
 100 #endif /*_WIN32_WCE*/
 101 }
 102
 103 static void set_call_log_date(LinphoneCallLog *cl, time_t start_time){
 104         struct tm loctime;
 105 #ifdef WIN32
 106 #if !defined(_WIN32_WCE)
 107         loctime=*localtime(&start_time);
 108         /*FIXME*/
 109 #endif /*_WIN32_WCE*/
 110 #else
 111         localtime_r(&start_time,&loctime);
 112 #endif
 113         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",&loctime);
 114 }
 115
 116 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 117         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 118         cl->dir=call->dir;
 119         cl->start_date_time=call->start_time;
 120         set_call_log_date(cl,cl->start_date_time);
 121         cl->from=from;
 122         cl->to=to;
 123     cl->status=LinphoneCallAborted; /*default status*/
 124         return cl;
 125 }
 126
 127 void call_logs_write_to_config_file(LinphoneCore *lc){
 128         MSList *elem;
 129         char logsection[32];
 130         int i;
 131         char *tmp;
 132         LpConfig *cfg=lc->config;
 133
 134         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
 135
 136         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
 137                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
 138                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 139                 lp_config_clean_section(cfg,logsection);
 140                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
 141                 lp_config_set_int(cfg,logsection,"status",cl->status);
 142                 tmp=linphone_address_as_string(cl->from);
 143                 lp_config_set_string(cfg,logsection,"from",tmp);
 144                 ms_free(tmp);
 145                 tmp=linphone_address_as_string(cl->to);
 146                 lp_config_set_string(cfg,logsection,"to",tmp);
 147                 ms_free(tmp);
 148                 if (cl->start_date_time)
 149                         lp_config_set_int64(cfg,logsection,"start_date_time",(int64_t)cl->start_date_time);
 150                 else lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
 151                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
 152                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
 153                 lp_config_set_float(cfg,logsection,"quality",cl->quality);
 154                 lp_config_set_int(cfg,logsection,"video_enabled", cl->video_enabled);
 155                 lp_config_set_string(cfg,logsection,"call_id",cl->call_id);
 156         }
 157         for(;i<lc->max_call_logs;++i){
 158                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 159                 lp_config_clean_section(cfg,logsection);
 160         }
 161 }
 162
 163 static time_t string_to_time(const char *date){
 164 #ifndef WIN32
 165         struct tm tmtime={0};
 166         strptime(date,"%c",&tmtime);
 167         return mktime(&tmtime);
 168 #else
 169         return 0;
 170 #endif
 171 }
 172
 173 static void call_logs_read_from_config_file(LinphoneCore *lc){
 174         char logsection[32];
 175         int i;
 176         const char *tmp;
 177         uint64_t sec;
 178         LpConfig *cfg=lc->config;
 179         for(i=0;;++i){
 180                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 181                 if (lp_config_has_section(cfg,logsection)){
 182                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 183                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
 184                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
 185                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
 186                         if (tmp) cl->from=linphone_address_new(tmp);
 187                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
 188                         if (tmp) cl->to=linphone_address_new(tmp);
 189                         sec=lp_config_get_int64(cfg,logsection,"start_date_time",0);
 190                         if (sec) {
 191                                 /*new call log format with date expressed in seconds */
 192                                 cl->start_date_time=(time_t)sec;
 193                                 set_call_log_date(cl,cl->start_date_time);
 194                         }else{
 195                                 tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
 196                                 if (tmp) {
 197                                         strncpy(cl->start_date,tmp,sizeof(cl->start_date));
 198                                         cl->start_date_time=string_to_time(cl->start_date);
 199                                 }
 200                         }
 201                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
 202                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
 203                         if (tmp) cl->refkey=ms_strdup(tmp);
 204                         cl->quality=lp_config_get_float(cfg,logsection,"quality",-1);
 205                         cl->video_enabled=lp_config_get_int(cfg,logsection,"video_enabled",0);
 206                         tmp=lp_config_get_string(cfg,logsection,"call_id",NULL);
 207                         if (tmp) cl->call_id=ms_strdup(tmp);
 208                         lc->call_logs=ms_list_append(lc->call_logs,cl);
 209                 }else break;
 210         }
 211 }
 212
 213
 214
 215 /**
 216  * @addtogroup call_logs
 217  * @{
 218 **/
 219
 220 /**
 221  * Returns a human readable string describing the call.
 222  *
 223  * @note: the returned char* must be freed by the application (use ms_free()).
 224 **/
 225 char * linphone_call_log_to_str(LinphoneCallLog *cl){
 226         char *status;
 227         char *tmp;
 228         char *from=linphone_address_as_string (cl->from);
 229         char *to=linphone_address_as_string (cl->to);
 230         switch(cl->status){
 231                 case LinphoneCallAborted:
 232                         status=_("aborted");
 233                         break;
 234                 case LinphoneCallSuccess:
 235                         status=_("completed");
 236                         break;
 237                 case LinphoneCallMissed:
 238                         status=_("missed");
 239                         break;
 240                 default:
 241                         status="unknown";
 242         }
 243         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
 244                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
 245                         cl->start_date,
 246                         from,
 247                         to,
 248                         status,
 249                         cl->duration/60,
 250                         cl->duration%60);
 251         ms_free(from);
 252         ms_free(to);
 253         return tmp;
 254 }
 255
 256 /**
 257  * Returns RTP statistics computed locally regarding the call.
 258  *
 259 **/
 260 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
 261         return &cl->local_stats;
 262 }
 263
 264 /**
 265  * Returns RTP statistics computed by remote end and sent back via RTCP.
 266  *
 267  * @note Not implemented yet.
 268 **/
 269 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
 270         return &cl->remote_stats;
 271 }
 272
 273 const char *linphone_call_log_get_call_id(const LinphoneCallLog *cl){
 274         return cl->call_id;
 275 }
 276
 277 /**
 278  * Assign a user pointer to the call log.
 279 **/
 280 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
 281         cl->user_pointer=up;
 282 }
 283
 284 /**
 285  * Returns the user pointer associated with the call log.
 286 **/
 287 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
 288         return cl->user_pointer;
 289 }
 290
 291
 292
 293 /**
 294  * Associate a persistent reference key to the call log.
 295  *
 296  * The reference key can be for example an id to an external database.
 297  * It is stored in the config file, thus can survive to process exits/restarts.
 298  *
 299 **/
 300 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
 301         if (cl->refkey!=NULL){
 302                 ms_free(cl->refkey);
 303                 cl->refkey=NULL;
 304         }
 305         if (refkey) cl->refkey=ms_strdup(refkey);
 306 }
 307
 308 /**
 309  * Get the persistent reference key associated to the call log.
 310  *
 311  * The reference key can be for example an id to an external database.
 312  * It is stored in the config file, thus can survive to process exits/restarts.
 313  *
 314 **/
 315 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
 316         return cl->refkey;
 317 }
 318
 319 /**
 320  * Returns origin (ie from) address of the call.
 321 **/
 322 LinphoneAddress *linphone_call_log_get_from(LinphoneCallLog *cl){
 323         return cl->from;
 324 }
 325
 326 /**
 327  * Returns destination address (ie to) of the call.
 328 **/
 329 LinphoneAddress *linphone_call_log_get_to(LinphoneCallLog *cl){
 330         return cl->to;
 331 }
 332
 333 /**
 334  * Returns remote address (that is from or to depending on call direction).
 335 **/
 336 LinphoneAddress *linphone_call_log_get_remote_address(LinphoneCallLog *cl){
 337         return (cl->dir == LinphoneCallIncoming) ? cl->from : cl->to;
 338 }
 339
 340 /**
 341  * Returns the direction of the call.
 342 **/
 343 LinphoneCallDir linphone_call_log_get_dir(LinphoneCallLog *cl){
 344         return cl->dir;
 345 }
 346
 347 /**
 348  * Returns the status of the call.
 349 **/
 350 LinphoneCallStatus linphone_call_log_get_status(LinphoneCallLog *cl){
 351         return cl->status;
 352 }
 353
 354 /**
 355  * Returns the start date of the call, expressed as a POSIX time_t.
 356 **/
 357 time_t linphone_call_log_get_start_date(LinphoneCallLog *cl){
 358         return cl->start_date_time;
 359 }
 360
 361 /**
 362  * Returns duration of the call.
 363 **/
 364 int linphone_call_log_get_duration(LinphoneCallLog *cl){
 365         return cl->duration;
 366 }
 367
 368 /**
 369  * Returns overall quality indication of the call.
 370 **/
 371 float linphone_call_log_get_quality(LinphoneCallLog *cl){
 372         return cl->quality;
 373 }
 374
 375 /** @} */
 376
 377 void linphone_call_log_destroy(LinphoneCallLog *cl){
 378         if (cl->from!=NULL) linphone_address_destroy(cl->from);
 379         if (cl->to!=NULL) linphone_address_destroy(cl->to);
 380         if (cl->refkey!=NULL) ms_free(cl->refkey);
 381         if (cl->call_id) ms_free(cl->call_id);
 382         ms_free(cl);
 383 }
 384
 385 /**
 386  * Returns TRUE if the LinphoneCall asked to autoanswer
 387  *
 388 **/
 389 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
 390         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
 391         if(call)
 392                 return sal_call_autoanswer_asked(call->op);
 393         else
 394                 return FALSE;
 395 }
 396
 397 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
 398         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
 399         if (call)  return linphone_call_get_duration(call);
 400         return -1;
 401 }
 402
 403 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
 404         LinphoneCall *call=linphone_core_get_current_call(lc);
 405         if (call==NULL) return NULL;
 406         return linphone_call_get_remote_address(call);
 407 }
 408
 409 /**
 410  * Enable logs in supplied FILE*.
 411  *
 412  * @ingroup misc
 413  *
 414  * @param file a C FILE* where to fprintf logs. If null stdout is used.
 415  *
 416 **/
 417 void linphone_core_enable_logs(FILE *file){
 418         if (file==NULL) file=stdout;
 419         ortp_set_log_file(file);
 420         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 421 }
 422
 423 /**
 424  * Enable logs through the user's supplied log callback.
 425  *
 426  * @ingroup misc
 427  *
 428  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
 429  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
 430  *
 431 **/
 432 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
 433         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 434         ortp_set_log_handler(logfunc);
 435 }
 436
 437 /**
 438  * Entirely disable logging.
 439  *
 440  * @ingroup misc
 441 **/
 442 void linphone_core_disable_logs(){
 443         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
 444 }
 445
 446
 447 static void net_config_read (LinphoneCore *lc)
 448 {
 449         int tmp;
 450         const char *tmpstr;
 451         LpConfig *config=lc->config;
 452
 453         lc->net_conf.nat_address_ip = NULL;
 454         tmp=lp_config_get_int(config,"net","download_bw",0);
 455         linphone_core_set_download_bandwidth(lc,tmp);
 456         tmp=lp_config_get_int(config,"net","upload_bw",0);
 457         linphone_core_set_upload_bandwidth(lc,tmp);
 458         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
 459         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
 460         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
 461         linphone_core_set_nat_address(lc,tmpstr);
 462         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
 463         linphone_core_set_firewall_policy(lc,tmp);
 464         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
 465         lc->net_conf.nat_sdp_only=tmp;
 466         tmp=lp_config_get_int(lc->config,"net","mtu",0);
 467         linphone_core_set_mtu(lc,tmp);
 468         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 469         linphone_core_set_download_ptime(lc,tmp);
 470
 471 }
 472
 473 static void build_sound_devices_table(LinphoneCore *lc){
 474         const char **devices;
 475         const char **old;
 476         int ndev;
 477         int i;
 478         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
 479         ndev=ms_list_size(elem);
 480         devices=ms_malloc((ndev+1)*sizeof(const char *));
 481         for (i=0;elem!=NULL;elem=elem->next,i++){
 482                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
 483         }
 484         devices[ndev]=NULL;
 485         old=lc->sound_conf.cards;
 486         lc->sound_conf.cards=devices;
 487         if (old!=NULL) ms_free(old);
 488 }
 489
 490 static void sound_config_read(LinphoneCore *lc)
 491 {
 492         int tmp;
 493         const char *tmpbuf;
 494         const char *devid;
 495 #ifdef __linux
 496         /*alsadev let the user use custom alsa device within linphone*/
 497         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
 498         if (devid){
 499                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
 500                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
 501         }
 502         tmp=lp_config_get_int(lc->config,"sound","alsa_forced_rate",-1);
 503         if (tmp>0) ms_alsa_card_set_forced_sample_rate(tmp);
 504 #endif
 505         /* retrieve all sound devices */
 506         build_sound_devices_table(lc);
 507
 508         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
 509         linphone_core_set_playback_device(lc,devid);
 510
 511         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
 512         linphone_core_set_ringer_device(lc,devid);
 513
 514         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
 515         linphone_core_set_capture_device(lc,devid);
 516
 517 /*
 518         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
 519         linphone_core_set_play_level(lc,tmp);
 520         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
 521         linphone_core_set_ring_level(lc,tmp);
 522         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
 523         linphone_core_set_rec_level(lc,tmp);
 524         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
 525         linphone_core_set_sound_source(lc,tmpbuf[0]);
 526 */
 527
 528         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 529         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
 530         if (ortp_file_exist(tmpbuf)==-1) {
 531                 ms_warning("%s does not exist",tmpbuf);
 532                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 533         }
 534         if (strstr(tmpbuf,".wav")==NULL){
 535                 /* it currently uses old sound files, so replace them */
 536                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 537         }
 538         linphone_core_set_ring(lc,tmpbuf);
 539
 540         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 541         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
 542         if (ortp_file_exist(tmpbuf)==-1){
 543                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 544         }
 545         if (strstr(tmpbuf,".wav")==NULL){
 546                 /* it currently uses old sound files, so replace them */
 547                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 548         }
 549         linphone_core_set_ringback(lc,tmpbuf);
 550
 551         linphone_core_set_play_file(lc,lp_config_get_string(lc->config,"sound","hold_music",PACKAGE_SOUND_DIR "/" HOLD_MUSIC));
 552         check_sound_device(lc);
 553         lc->sound_conf.latency=0;
 554 #ifndef __ios
 555         tmp=TRUE;
 556 #else
 557         tmp=FALSE; /* on iOS we have builtin echo cancellation.*/
 558 #endif
 559         tmp=lp_config_get_int(lc->config,"sound","echocancellation",tmp);
 560         linphone_core_enable_echo_cancellation(lc,tmp);
 561         linphone_core_enable_echo_limiter(lc,
 562                 lp_config_get_int(lc->config,"sound","echolimiter",0));
 563         linphone_core_enable_agc(lc,
 564                 lp_config_get_int(lc->config,"sound","agc",0));
 565
 566         linphone_core_set_playback_gain_db (lc,lp_config_get_float(lc->config,"sound","playback_gain_db",0));
 567         linphone_core_set_mic_gain_db (lc,lp_config_get_float(lc->config,"sound","mic_gain_db",0));
 568
 569         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
 570
 571         /*just parse requested stream feature once at start to print out eventual errors*/
 572         linphone_core_get_audio_features(lc);
 573 }
 574
 575 static void sip_config_read(LinphoneCore *lc)
 576 {
 577         char *contact;
 578         const char *tmpstr;
 579         LCSipTransports tr;
 580         int i,tmp;
 581         int ipv6;
 582         int random_port;
 583
 584         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
 585         linphone_core_set_use_info_for_dtmf(lc,tmp);
 586
 587         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
 588                 sal_use_session_timers(lc->sal,200);
 589         }
 590
 591         sal_use_rport(lc->sal,lp_config_get_int(lc->config,"sip","use_rport",1));
 592         sal_use_101(lc->sal,lp_config_get_int(lc->config,"sip","use_101",1));
 593         sal_reuse_authorization(lc->sal, lp_config_get_int(lc->config,"sip","reuse_authorization",0));
 594         sal_expire_old_registration_contacts(lc->sal,lp_config_get_int(lc->config,"sip","expire_old_registration_contacts",0));
 595
 596         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",1);
 597         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
 598
 599         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
 600         if (ipv6==-1){
 601                 ipv6=0;
 602         }
 603         linphone_core_enable_ipv6(lc,ipv6);
 604         memset(&tr,0,sizeof(tr));
 605
 606         tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",0);
 607         tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
 608         tr.tls_port=lp_config_get_int(lc->config,"sip","sip_tls_port",0);
 609
 610         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)==1)
 611                 random_port=(0xDFFF&random())+1024;
 612         else random_port=0;
 613
 614         if (tr.udp_port==0 && tr.tcp_port==0 && tr.tls_port==0){
 615                 tr.udp_port=5060;
 616         }
 617
 618         if (tr.udp_port>0 && random_port){
 619                 tr.udp_port=random_port;
 620                 tr.tls_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 621         }else if (tr.tcp_port>0 && random_port){
 622                 tr.tcp_port=random_port;
 623                 tr.tls_port=tr.udp_port=0; /*make sure only one transport is active at a time*/
 624         }else if (tr.tls_port>0 && random_port){
 625                 tr.tls_port=random_port;
 626                 tr.udp_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 627         }
 628
 629 #ifdef __linux
 630         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", "/etc/ssl/certs"));
 631 #else
 632         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", ROOT_CA_FILE));
 633 #endif
 634         linphone_core_verify_server_certificates(lc,lp_config_get_int(lc->config,"sip","verify_server_certs",TRUE));
 635         linphone_core_verify_server_cn(lc,lp_config_get_int(lc->config,"sip","verify_server_cn",TRUE));
 636         /*setting the dscp must be done before starting the transports, otherwise it is not taken into effect*/
 637         sal_set_dscp(lc->sal,linphone_core_get_sip_dscp(lc));
 638         /*start listening on ports*/
 639         linphone_core_set_sip_transports(lc,&tr);
 640
 641         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
 642         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
 643                 const char *hostname=NULL;
 644                 const char *username=NULL;
 645 #ifdef HAVE_GETENV
 646                 hostname=getenv("HOST");
 647                 username=getenv("USER");
 648                 if (hostname==NULL) hostname=getenv("HOSTNAME");
 649 #endif /*HAVE_GETENV*/
 650                 if (hostname==NULL)
 651                         hostname="unknown-host";
 652                 if (username==NULL){
 653                         username="toto";
 654                 }
 655                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
 656                 linphone_core_set_primary_contact(lc,contact);
 657                 ms_free(contact);
 658         }
 659
 660         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
 661         linphone_core_set_guess_hostname(lc,tmp);
 662
 663
 664         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",30);
 665         linphone_core_set_inc_timeout(lc,tmp);
 666
 667         tmp=lp_config_get_int(lc->config,"sip","in_call_timeout",0);
 668         linphone_core_set_in_call_timeout(lc,tmp);
 669
 670         /* get proxies config */
 671         for(i=0;; i++){
 672                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 673                 if (cfg!=NULL){
 674                         linphone_core_add_proxy_config(lc,cfg);
 675                 }else{
 676                         break;
 677                 }
 678         }
 679         /* get the default proxy */
 680         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 681         linphone_core_set_default_proxy_index(lc,tmp);
 682
 683         /* read authentication information */
 684         for(i=0;; i++){
 685                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 686                 if (ai!=NULL){
 687                         linphone_core_add_auth_info(lc,ai);
 688                         linphone_auth_info_destroy(ai);
 689                 }else{
 690                         break;
 691                 }
 692         }
 693         /*this is to filter out unsupported encryption schemes*/
 694         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 695
 696         /*for tuning or test*/
 697         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 698         lc->sip_conf.register_only_when_network_is_up=
 699                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 700         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 701         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
 702         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
 703         lc->sip_conf.tcp_tls_keepalive=lp_config_get_int(lc->config,"sip","tcp_tls_keepalive",0);
 704         linphone_core_enable_keep_alive(lc, (lc->sip_conf.keepalive_period > 0));
 705         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
 706         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
 707         sal_use_dates(lc->sal,lp_config_get_int(lc->config,"sip","put_date",0));
 708 }
 709
 710 static void rtp_config_read(LinphoneCore *lc)
 711 {
 712         int min_port, max_port;
 713         int jitt_comp;
 714         int nortp_timeout;
 715         bool_t rtp_no_xmit_on_audio_mute;
 716         bool_t adaptive_jitt_comp_enabled;
 717
 718         if (lp_config_get_range(lc->config, "rtp", "audio_rtp_port", &min_port, &max_port, 7078, 7078) == TRUE) {
 719                 if (min_port <= 0) min_port = 1;
 720                 if (max_port > 65535) max_port = 65535;
 721                 linphone_core_set_audio_port_range(lc, min_port, max_port);
 722         } else {
 723                 min_port = lp_config_get_int(lc->config, "rtp", "audio_rtp_port", 7078);
 724                 linphone_core_set_audio_port(lc, min_port);
 725         }
 726
 727         if (lp_config_get_range(lc->config, "rtp", "video_rtp_port", &min_port, &max_port, 9078, 9078) == TRUE) {
 728                 if (min_port <= 0) min_port = 1;
 729                 if (max_port > 65535) max_port = 65535;
 730                 linphone_core_set_video_port_range(lc, min_port, max_port);
 731         } else {
 732                 min_port = lp_config_get_int(lc->config, "rtp", "video_rtp_port", 9078);
 733                 linphone_core_set_video_port(lc, min_port);
 734         }
 735
 736         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 737         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 738         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 739         if (jitt_comp==0) jitt_comp=60;
 740         linphone_core_set_video_jittcomp(lc,jitt_comp);
 741         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 742         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 743         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
 744         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
 745         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
 746         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 747         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
 748         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 749 }
 750
 751 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 752         PayloadType *candidate=NULL;
 753         int i;
 754         PayloadType *it;
 755         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 756                 it=rtp_profile_get_payload(prof,i);
 757                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 758                         && (clock_rate==it->clock_rate || clock_rate<=0)
 759                         && (channels==it->channels || channels<=0) ){
 760                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 761                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 762                                 /*exact match*/
 763                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 764                                 return it;
 765                         }else {
 766                                 if (candidate){
 767                                         if (it->recv_fmtp==NULL) candidate=it;
 768                                 }else candidate=it;
 769                         }
 770                 }
 771         }
 772         if (candidate && recv_fmtp){
 773                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 774         }
 775         return candidate;
 776 }
 777
 778 static bool_t get_codec(LinphoneCore *lc, const char* type, int index, PayloadType **ret){
 779         char codeckey[50];
 780         const char *mime,*fmtp;
 781         int rate,channels,enabled;
 782         PayloadType *pt;
 783         LpConfig *config=lc->config;
 784
 785         *ret=NULL;
 786         snprintf(codeckey,50,"%s_%i",type,index);
 787         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 788         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 789
 790         rate=lp_config_get_int(config,codeckey,"rate",8000);
 791         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 792         channels=lp_config_get_int(config,codeckey,"channels",0);
 793         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 794         pt=find_payload(lc->default_profile,mime,rate,channels,fmtp);
 795         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 796         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 797         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 798                         mime,rate,fmtp ? fmtp : "");
 799         *ret=pt;
 800         return TRUE;
 801 }
 802
 803 #define RANK_END 10000
 804
 805 typedef struct codec_desc{
 806         const char *name;
 807         int rate;
 808 }codec_desc_t;
 809
 810 static codec_desc_t codec_pref_order[]={
 811         {"SILK", 16000},
 812         {"speex", 16000},
 813         {"speex", 8000},
 814         {"pcmu",8000},
 815         {"pcma",8000},
 816         {"VP8",90000},
 817         {"H264",90000},
 818         {"MP4V-ES",90000},
 819         {NULL,0}
 820 };
 821
 822 static int find_codec_rank(const char *mime, int clock_rate){
 823         int i;
 824         for(i=0;codec_pref_order[i].name!=NULL;++i){
 825                 if (strcasecmp(codec_pref_order[i].name,mime)==0 && clock_rate==codec_pref_order[i].rate)
 826                         return i;
 827         }
 828         return RANK_END;
 829 }
 830
 831 static int codec_compare(const PayloadType *a, const PayloadType *b){
 832         int ra,rb;
 833         ra=find_codec_rank(a->mime_type,a->clock_rate);
 834         rb=find_codec_rank(b->mime_type,b->clock_rate);
 835         if (ra>rb) return 1;
 836         if (ra<rb) return -1;
 837         return 0;
 838 }
 839
 840 static MSList *add_missing_codecs(LinphoneCore *lc, SalStreamType mtype, MSList *l){
 841         int i;
 842         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 843                 PayloadType *pt=rtp_profile_get_payload(lc->default_profile,i);
 844                 if (pt){
 845                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 846                                 pt=NULL;
 847                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 848                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 849                                 pt=NULL;
 850                         }
 851                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 852                                 if (ms_list_find(l,pt)==NULL){
 853                                         /*unranked codecs are disabled by default*/
 854                                         if (find_codec_rank(pt->mime_type, pt->clock_rate)!=RANK_END){
 855                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 856                                         }
 857                                         ms_message("Adding new codec %s/%i with fmtp %s",
 858                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 859                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 860                                 }
 861                         }
 862                 }
 863         }
 864         return l;
 865 }
 866
 867 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 868         MSList *elem;
 869         for (elem=l;elem!=NULL;elem=elem->next){
 870                 PayloadType *ept=(PayloadType*)elem->data;
 871                 if (pt==ept)
 872                         return l;
 873         }
 874         l=ms_list_append(l,pt);
 875         return l;
 876 }
 877
 878 static void codecs_config_read(LinphoneCore *lc)
 879 {
 880         int i;
 881         PayloadType *pt;
 882         MSList *audio_codecs=NULL;
 883         MSList *video_codecs=NULL;
 884         for (i=0;get_codec(lc,"audio_codec",i,&pt);i++){
 885                 if (pt){
 886                         if (!ms_filter_codec_supported(pt->mime_type)){
 887                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 888                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 889                 }
 890         }
 891         audio_codecs=add_missing_codecs(lc,SalAudio,audio_codecs);
 892         for (i=0;get_codec(lc,"video_codec",i,&pt);i++){
 893                 if (pt){
 894                         if (!ms_filter_codec_supported(pt->mime_type)){
 895                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 896                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 897                 }
 898         }
 899         video_codecs=add_missing_codecs(lc,SalVideo,video_codecs);
 900         linphone_core_set_audio_codecs(lc,audio_codecs);
 901         linphone_core_set_video_codecs(lc,video_codecs);
 902         linphone_core_update_allocated_audio_bandwidth(lc);
 903 }
 904
 905 static void build_video_devices_table(LinphoneCore *lc){
 906         const MSList *elem;
 907         int i;
 908         int ndev;
 909         const char **devices;
 910         if (lc->video_conf.cams)
 911                 ms_free(lc->video_conf.cams);
 912         /* retrieve all video devices */
 913         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 914         ndev=ms_list_size(elem);
 915         devices=ms_malloc((ndev+1)*sizeof(const char *));
 916         for (i=0;elem!=NULL;elem=elem->next,i++){
 917                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 918         }
 919         devices[ndev]=NULL;
 920         lc->video_conf.cams=devices;
 921 }
 922
 923 static void video_config_read(LinphoneCore *lc){
 924 #ifdef VIDEO_ENABLED
 925         int capture, display, self_view;
 926 #endif
 927         const char *str;
 928 #ifdef VIDEO_ENABLED
 929         LinphoneVideoPolicy vpol;
 930         memset(&vpol, 0, sizeof(LinphoneVideoPolicy));
 931 #endif
 932         build_video_devices_table(lc);
 933
 934         str=lp_config_get_string(lc->config,"video","device",NULL);
 935         if (str && str[0]==0) str=NULL;
 936         linphone_core_set_video_device(lc,str);
 937
 938         linphone_core_set_preferred_video_size_by_name(lc,
 939                 lp_config_get_string(lc->config,"video","size","cif"));
 940
 941 #ifdef VIDEO_ENABLED
 942         capture=lp_config_get_int(lc->config,"video","capture",1);
 943         display=lp_config_get_int(lc->config,"video","display",1);
 944         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 945         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 946         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 947         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 948         if(lc->video_conf.displaytype)
 949                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 950
 951         linphone_core_enable_video(lc,capture,display);
 952         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 953         linphone_core_enable_self_view(lc,self_view);
 954         linphone_core_set_video_policy(lc,&vpol);
 955 #endif
 956 }
 957
 958 static void ui_config_read(LinphoneCore *lc)
 959 {
 960         LinphoneFriend *lf;
 961         int i;
 962         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 963                 linphone_core_add_friend(lc,lf);
 964         }
 965         call_logs_read_from_config_file(lc);
 966 }
 967
 968 /*
 969 static void autoreplier_config_init(LinphoneCore *lc)
 970 {
 971         autoreplier_config_t *config=&lc->autoreplier_conf;
 972         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 973         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 974         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 975         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 976         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 977         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 978 }
 979 */
 980
 981 bool_t linphone_core_tunnel_available(void){
 982 #ifdef TUNNEL_ENABLED
 983         return TRUE;
 984 #else
 985         return FALSE;
 986 #endif
 987 }
 988
 989 /**
 990  * Enable adaptive rate control.
 991  *
 992  * @ingroup media_parameters
 993  *
 994  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
 995  * control the output bitrate of the audio and video encoders, so that we can adapt to the network conditions and
 996  * 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.
 997  * Adaptive rate control feature is enabled by default.
 998 **/
 999 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
1000         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
1001 }
1002
1003 /**
1004  * Returns whether adaptive rate control is enabled.
1005  *
1006  * @ingroup media_parameters
1007  *
1008  * See linphone_core_enable_adaptive_rate_control().
1009 **/
1010 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
1011         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
1012 }
1013
1014 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
1015         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
1016 }
1017
1018 /**
1019  * Sets maximum available download bandwidth
1020  *
1021  * @ingroup media_parameters
1022  *
1023  * This is IP bandwidth, in kbit/s.
1024  * This information is used signaled to other parties during
1025  * calls (within SDP messages) so that the remote end can have
1026  * sufficient knowledge to properly configure its audio & video
1027  * codec output bitrate to not overflow available bandwidth.
1028  *
1029  * @param lc the LinphoneCore object
1030  * @param bw the bandwidth in kbits/s, 0 for infinite
1031  */
1032 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
1033         lc->net_conf.download_bw=bw;
1034         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
1035 }
1036
1037 /**
1038  * Sets maximum available upload bandwidth
1039  *
1040  * @ingroup media_parameters
1041  *
1042  * This is IP bandwidth, in kbit/s.
1043  * This information is used by liblinphone together with remote
1044  * side available bandwidth signaled in SDP messages to properly
1045  * configure audio & video codec's output bitrate.
1046  *
1047  * @param lc the LinphoneCore object
1048  * @param bw the bandwidth in kbits/s, 0 for infinite
1049  */
1050 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
1051         lc->net_conf.upload_bw=bw;
1052         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
1053 }
1054
1055 /**
1056  * Retrieve the maximum available download bandwidth.
1057  *
1058  * @ingroup media_parameters
1059  *
1060  * This value was set by linphone_core_set_download_bandwidth().
1061  *
1062 **/
1063 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
1064         return lc->net_conf.download_bw;
1065 }
1066
1067 /**
1068  * Retrieve the maximum available upload bandwidth.
1069  *
1070  * @ingroup media_parameters
1071  *
1072  * This value was set by linphone_core_set_upload_bandwidth().
1073  *
1074 **/
1075 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
1076         return lc->net_conf.upload_bw;
1077 }
1078 /**
1079  * Set audio packetization time linphone expects to receive from peer.
1080  * A value of zero means that ptime is not specified.
1081  * @ingroup media_parameters
1082  */
1083 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
1084         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
1085 }
1086
1087 /**
1088  * Get audio packetization time linphone expects to receive from peer.
1089  * A value of zero means that ptime is not specified.
1090  * @ingroup media_parameters
1091  */
1092 int linphone_core_get_download_ptime(LinphoneCore *lc) {
1093         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
1094 }
1095
1096 /**
1097  * Set audio packetization time linphone will send (in absence of requirement from peer)
1098  * A value of 0 stands for the current codec default packetization time.
1099  *
1100  * @ingroup media_parameters
1101 **/
1102 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
1103         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
1104 }
1105
1106 /**
1107  * Set audio packetization time linphone will send (in absence of requirement from peer)
1108  * A value of 0 stands for the current codec default packetization time.
1109  *
1110  *
1111  * @ingroup media_parameters
1112 **/
1113 int linphone_core_get_upload_ptime(LinphoneCore *lc){
1114         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
1115 }
1116
1117
1118
1119 /**
1120  * Returns liblinphone's version as a string.
1121  *
1122  * @ingroup misc
1123  *
1124 **/
1125 const char * linphone_core_get_version(void){
1126         return liblinphone_version;
1127 }
1128
1129 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1130         PayloadType *pt;
1131         pt=payload_type_clone(const_pt);
1132         if (number==-1){
1133                 /*look for a free number */
1134                 MSList *elem;
1135                 int i;
1136                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1137                         bool_t already_assigned=FALSE;
1138                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1139                                 PayloadType *it=(PayloadType*)elem->data;
1140                                 if (payload_type_get_number(it)==i){
1141                                         already_assigned=TRUE;
1142                                         break;
1143                                 }
1144                         }
1145                         if (!already_assigned){
1146                                 number=i;
1147                                 lc->dyn_pt=i+1;
1148                                 break;
1149                         }
1150                 }
1151                 if (number==-1){
1152                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1153                 }
1154         }
1155         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1156         payload_type_set_number(pt,number);
1157         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1158         rtp_profile_set_payload(lc->default_profile,number,pt);
1159         lc->payload_types=ms_list_append(lc->payload_types,pt);
1160 }
1161
1162 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1163         RtpProfile *prof=&av_profile;
1164         int i;
1165         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1166                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1167                 if (pt){
1168                         if (payload_type_get_number(pt)!=i){
1169                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1170                         }
1171                 }
1172         }
1173 }
1174
1175 static void linphone_core_free_payload_types(LinphoneCore *lc){
1176         rtp_profile_clear_all(lc->default_profile);
1177         rtp_profile_destroy(lc->default_profile);
1178         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1179         ms_list_free(lc->payload_types);
1180         lc->payload_types=NULL;
1181 }
1182
1183 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1184         lc->state=gstate;
1185         if (lc->vtable.global_state_changed){
1186                 lc->vtable.global_state_changed(lc,gstate,message);
1187         }
1188 }
1189 static void misc_config_read (LinphoneCore *lc) {
1190         LpConfig *config=lc->config;
1191     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1192     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1193 }
1194
1195
1196
1197
1198 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1199     const char *factory_config_path, void * userdata)
1200 {
1201         ms_message("Initializing LinphoneCore %s", linphone_core_get_version());
1202         memset (lc, 0, sizeof (LinphoneCore));
1203         lc->data=userdata;
1204         lc->ringstream_autorelease=TRUE;
1205
1206         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1207
1208         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1209         ortp_init();
1210         lc->dyn_pt=96;
1211         lc->default_profile=rtp_profile_new("default profile");
1212         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1213         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1214         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1215         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1216         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1217         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1218         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1219         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1220
1221 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1222         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1223          - to workaround potential packet losses
1224          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1225          */
1226         _linphone_core_configure_resolver();
1227 #endif
1228
1229 #ifdef ENABLE_NONSTANDARD_GSM
1230         {
1231                 PayloadType *pt;
1232                 pt=payload_type_clone(&payload_type_gsm);
1233                 pt->clock_rate=11025;
1234                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1235                 pt->clock_rate=22050;
1236                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1237                 payload_type_destroy(pt);
1238         }
1239 #endif
1240
1241 #ifdef VIDEO_ENABLED
1242         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1243         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1244         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1245         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1246         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1247         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1248         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1249         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1250         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1251 #endif
1252
1253         /*add all payload type for which we don't care about the number */
1254         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1255         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1256         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1257         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1258         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1259         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1260         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1261         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1262         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1263         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1264         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1265         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1266         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1267         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1268         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1269         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1270         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1271         linphone_core_handle_static_payloads(lc);
1272
1273         ms_init();
1274         /* create a mediastreamer2 event queue and set it as global */
1275         /* This allows to run event's callback in linphone_core_iterate() */
1276         lc->msevq=ms_event_queue_new();
1277         ms_set_global_event_queue(lc->msevq);
1278
1279         lc->config=lp_config_new(config_path);
1280         if (factory_config_path)
1281                 lp_config_read_file(lc->config,factory_config_path);
1282
1283         lc->sal=sal_init();
1284         sal_set_user_pointer(lc->sal,lc);
1285         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1286
1287         lc->network_last_check = 0;
1288         lc->network_last_status = FALSE;
1289
1290         sip_setup_register_all();
1291         sound_config_read(lc);
1292         net_config_read(lc);
1293         rtp_config_read(lc);
1294         codecs_config_read(lc);
1295         sip_config_read(lc); /* this will start eXosip*/
1296         video_config_read(lc);
1297         //autoreplier_config_init(&lc->autoreplier_conf);
1298         lc->presence_mode=LinphoneStatusOnline;
1299         misc_config_read(lc);
1300         ui_config_read(lc);
1301 #ifdef TUNNEL_ENABLED
1302         lc->tunnel=linphone_core_tunnel_new(lc);
1303         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1304 #endif
1305 #ifdef BUILD_UPNP
1306         lc->upnp = linphone_upnp_context_new(lc);
1307 #endif  //BUILD_UPNP
1308         if (lc->vtable.display_status)
1309                 lc->vtable.display_status(lc,_("Ready"));
1310         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1311         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1312 }
1313
1314 /**
1315  * Instanciates a LinphoneCore object.
1316  * @ingroup initializing
1317  *
1318  * The LinphoneCore object is the primary handle for doing all phone actions.
1319  * It should be unique within your application.
1320  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1321  * @param config_path a path to a config file. If it does not exists it will be created.
1322  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1323  *             become persistent over the life of the LinphoneCore object.
1324  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1325  * @param factory_config_path a path to a read-only config file that can be used to
1326  *        to store hard-coded preference such as proxy settings or internal preferences.
1327  *        The settings in this factory file always override the one in the normal config file.
1328  *        It is OPTIONAL, use NULL if unneeded.
1329  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1330  *        callbacks) using linphone_core_get_user_data().
1331  *
1332 **/
1333 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1334                                                 const char *config_path, const char *factory_config_path, void * userdata)
1335 {
1336         LinphoneCore *core=ms_new(LinphoneCore,1);
1337         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1338         return core;
1339 }
1340
1341 /**
1342  * Returns the list of available audio codecs.
1343  *
1344  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1345  * structure holding the codec information.
1346  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1347  * (such as the order of codecs).
1348  * @ingroup media_parameters
1349 **/
1350 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1351 {
1352         return lc->codecs_conf.audio_codecs;
1353 }
1354
1355 /**
1356  * Returns the list of available video codecs.
1357  *
1358  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1359  * structure holding the codec information.
1360  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1361  * (such as the order of codecs).
1362  * @ingroup media_parameters
1363 **/
1364 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1365 {
1366         return lc->codecs_conf.video_codecs;
1367 }
1368
1369 /**
1370  * Sets the local "from" identity.
1371  *
1372  * @ingroup proxies
1373  * This data is used in absence of any proxy configuration or when no
1374  * default proxy configuration is set. See LinphoneProxyConfig
1375 **/
1376 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1377 {
1378         LinphoneAddress *ctt;
1379
1380         if ((ctt=linphone_address_new(contact))==0) {
1381                 ms_error("Bad contact url: %s",contact);
1382                 return -1;
1383         }
1384         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1385         lc->sip_conf.contact=ms_strdup(contact);
1386         if (lc->sip_conf.guessed_contact!=NULL){
1387                 ms_free(lc->sip_conf.guessed_contact);
1388                 lc->sip_conf.guessed_contact=NULL;
1389         }
1390         linphone_address_destroy(ctt);
1391         return 0;
1392 }
1393
1394
1395 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1396 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1397         const char *ip;
1398         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1399             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1400                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1401                 return;
1402         }
1403 #ifdef BUILD_UPNP
1404         else if (lc->upnp != NULL && linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp &&
1405                         linphone_upnp_context_get_state(lc->upnp) == LinphoneUpnpStateOk) {
1406                 ip = linphone_upnp_context_get_external_ipaddress(lc->upnp);
1407                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1408                 return;
1409         }
1410 #endif  //BUILD_UPNP
1411         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1412                 return;
1413         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1414         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1415 }
1416
1417 static void update_primary_contact(LinphoneCore *lc){
1418         char *guessed=NULL;
1419         char tmp[LINPHONE_IPADDR_SIZE];
1420
1421         LinphoneAddress *url;
1422         if (lc->sip_conf.guessed_contact!=NULL){
1423                 ms_free(lc->sip_conf.guessed_contact);
1424                 lc->sip_conf.guessed_contact=NULL;
1425         }
1426         url=linphone_address_new(lc->sip_conf.contact);
1427         if (!url){
1428                 ms_error("Could not parse identity contact !");
1429                 url=linphone_address_new("sip:unknown@unkwownhost");
1430         }
1431         linphone_core_get_local_ip(lc, NULL, tmp);
1432         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1433                 ms_warning("Local loopback network only !");
1434                 lc->sip_conf.loopback_only=TRUE;
1435         }else lc->sip_conf.loopback_only=FALSE;
1436         linphone_address_set_domain(url,tmp);
1437         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1438         guessed=linphone_address_as_string(url);
1439         lc->sip_conf.guessed_contact=guessed;
1440         linphone_address_destroy(url);
1441 }
1442
1443 /**
1444  * Returns the default identity when no proxy configuration is used.
1445  *
1446  * @ingroup proxies
1447 **/
1448 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1449         char *identity;
1450
1451         if (lc->sip_conf.guess_hostname){
1452                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1453                         update_primary_contact(lc);
1454                 }
1455                 identity=lc->sip_conf.guessed_contact;
1456         }else{
1457                 identity=lc->sip_conf.contact;
1458         }
1459         return identity;
1460 }
1461
1462 /**
1463  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1464  *
1465  * @ingroup proxies
1466 **/
1467 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1468         lc->sip_conf.guess_hostname=val;
1469 }
1470
1471 /**
1472  * Returns TRUE if hostname part of primary contact is guessed automatically.
1473  *
1474  * @ingroup proxies
1475 **/
1476 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1477         return lc->sip_conf.guess_hostname;
1478 }
1479
1480 /**
1481  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1482  * instead of const char*
1483  *
1484  * @ingroup proxies
1485 **/
1486 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1487         return linphone_address_new(linphone_core_get_primary_contact(lc));
1488 }
1489
1490 /**
1491  * Sets the list of audio codecs.
1492  *
1493  * @ingroup media_parameters
1494  * The list is taken by the LinphoneCore thus the application should not free it.
1495  * This list is made of struct PayloadType describing the codec parameters.
1496 **/
1497 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1498 {
1499         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1500         lc->codecs_conf.audio_codecs=codecs;
1501         _linphone_core_codec_config_write(lc);
1502         return 0;
1503 }
1504
1505 /**
1506  * Sets the list of video codecs.
1507  *
1508  * @ingroup media_parameters
1509  * The list is taken by the LinphoneCore thus the application should not free it.
1510  * This list is made of struct PayloadType describing the codec parameters.
1511 **/
1512 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1513 {
1514         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1515         lc->codecs_conf.video_codecs=codecs;
1516         _linphone_core_codec_config_write(lc);
1517         return 0;
1518 }
1519
1520 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1521 {
1522         return lc->friends;
1523 }
1524
1525 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1526 {
1527         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1528 }
1529
1530 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1531 {
1532         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1533 }
1534
1535 /**
1536  * Returns the nominal audio jitter buffer size in milliseconds.
1537  *
1538  * @ingroup media_parameters
1539 **/
1540 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1541 {
1542         return lc->rtp_conf.audio_jitt_comp;
1543 }
1544
1545 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1546 {
1547         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1548 }
1549
1550 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1551 {
1552         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1553 }
1554
1555 /**
1556  * Returns the nominal video jitter buffer size in milliseconds.
1557  *
1558  * @ingroup media_parameters
1559 **/
1560 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1561 {
1562         return lc->rtp_conf.video_jitt_comp;
1563 }
1564
1565 /**
1566  * Returns the UDP port used for audio streaming.
1567  *
1568  * @ingroup network_parameters
1569 **/
1570 int linphone_core_get_audio_port(const LinphoneCore *lc)
1571 {
1572         return lc->rtp_conf.audio_rtp_min_port;
1573 }
1574
1575 /**
1576  * Get the audio port range from which is randomly chosen the UDP port used for audio streaming.
1577  *
1578  * @ingroup network_parameters
1579  */
1580 void linphone_core_get_audio_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1581 {
1582         *min_port = lc->rtp_conf.audio_rtp_min_port;
1583         *max_port = lc->rtp_conf.audio_rtp_max_port;
1584 }
1585
1586 /**
1587  * Returns the UDP port used for video streaming.
1588  *
1589  * @ingroup network_parameters
1590 **/
1591 int linphone_core_get_video_port(const LinphoneCore *lc){
1592         return lc->rtp_conf.video_rtp_min_port;
1593 }
1594
1595 /**
1596  * Get the video port range from which is randomly chosen the UDP port used for video streaming.
1597  *
1598  * @ingroup network_parameters
1599  */
1600 void linphone_core_get_video_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1601 {
1602         *min_port = lc->rtp_conf.video_rtp_min_port;
1603         *max_port = lc->rtp_conf.video_rtp_max_port;
1604 }
1605
1606
1607 /**
1608  * Returns the value in seconds of the no-rtp timeout.
1609  *
1610  * @ingroup media_parameters
1611  * When no RTP or RTCP packets have been received for a while
1612  * LinphoneCore will consider the call is broken (remote end crashed or
1613  * disconnected from the network), and thus will terminate the call.
1614  * The no-rtp timeout is the duration above which the call is considered broken.
1615 **/
1616 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1617         return lc->rtp_conf.nortp_timeout;
1618 }
1619
1620 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1621         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1622 }
1623
1624 /**
1625  * Sets the nominal audio jitter buffer size in milliseconds.
1626  *
1627  * @ingroup media_parameters
1628 **/
1629 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1630 {
1631         lc->rtp_conf.audio_jitt_comp=value;
1632 }
1633
1634 /**
1635  * Sets the nominal video jitter buffer size in milliseconds.
1636  *
1637  * @ingroup media_parameters
1638 **/
1639 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1640 {
1641         lc->rtp_conf.video_jitt_comp=value;
1642 }
1643
1644 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1645         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1646 }
1647
1648 /**
1649  * Sets the UDP port used for audio streaming.
1650  *
1651  * @ingroup network_parameters
1652 **/
1653 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1654 {
1655         lc->rtp_conf.audio_rtp_min_port=lc->rtp_conf.audio_rtp_max_port=port;
1656 }
1657
1658 /**
1659  * Sets the UDP port range from which to randomly select the port used for audio streaming.
1660  * @ingroup media_parameters
1661  */
1662 void linphone_core_set_audio_port_range(LinphoneCore *lc, int min_port, int max_port)
1663 {
1664         lc->rtp_conf.audio_rtp_min_port=min_port;
1665         lc->rtp_conf.audio_rtp_max_port=max_port;
1666 }
1667
1668 /**
1669  * Sets the UDP port used for video streaming.
1670  *
1671  * @ingroup network_parameters
1672 **/
1673 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1674         lc->rtp_conf.video_rtp_min_port=lc->rtp_conf.video_rtp_max_port=port;
1675 }
1676
1677 /**
1678  * Sets the UDP port range from which to randomly select the port used for video streaming.
1679  * @ingroup media_parameters
1680  */
1681 void linphone_core_set_video_port_range(LinphoneCore *lc, int min_port, int max_port)
1682 {
1683         lc->rtp_conf.video_rtp_min_port=min_port;
1684         lc->rtp_conf.video_rtp_max_port=max_port;
1685 }
1686
1687 /**
1688  * Sets the no-rtp timeout value in seconds.
1689  *
1690  * @ingroup media_parameters
1691  * See linphone_core_get_nortp_timeout() for details.
1692 **/
1693 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1694         lc->rtp_conf.nortp_timeout=nortp_timeout;
1695 }
1696
1697 /**
1698  * Indicates whether SIP INFO is used for sending digits.
1699  *
1700  * @ingroup media_parameters
1701 **/
1702 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1703 {
1704         return lc->sip_conf.use_info;
1705 }
1706
1707 /**
1708  * Sets whether SIP INFO is to be used for sending digits.
1709  *
1710  * @ingroup media_parameters
1711 **/
1712 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1713 {
1714         lc->sip_conf.use_info=use_info;
1715 }
1716
1717 /**
1718  * Indicates whether RFC2833 is used for sending digits.
1719  *
1720  * @ingroup media_parameters
1721 **/
1722 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1723 {
1724         return lc->sip_conf.use_rfc2833;
1725 }
1726
1727 /**
1728  * Sets whether RFC2833 is to be used for sending digits.
1729  *
1730  * @ingroup media_parameters
1731 **/
1732 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1733 {
1734         lc->sip_conf.use_rfc2833=use_rfc2833;
1735 }
1736
1737 /**
1738  * Returns the UDP port used by SIP.
1739  *
1740  * Deprecated: use linphone_core_get_sip_transports() instead.
1741  * @ingroup network_parameters
1742 **/
1743 int linphone_core_get_sip_port(LinphoneCore *lc)
1744 {
1745         LCSipTransports *tr=&lc->sip_conf.transports;
1746         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1747 }
1748
1749 static char _ua_name[64]="Linphone";
1750 static char _ua_version[64]=LINPHONE_VERSION;
1751
1752 #ifdef HAVE_EXOSIP_GET_VERSION
1753 extern const char *eXosip_get_version();
1754 #endif
1755
1756 static void apply_user_agent(LinphoneCore *lc){
1757         char ua_string[256];
1758         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1759 #ifdef HAVE_EXOSIP_GET_VERSION
1760                  eXosip_get_version()
1761 #else
1762                  "unknown"
1763 #endif
1764         );
1765         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1766 }
1767
1768 /**
1769  * Sets the user agent string used in SIP messages.
1770  *
1771  * @ingroup misc
1772 **/
1773 void linphone_core_set_user_agent(LinphoneCore *lc, const char *name, const char *ver){
1774         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1775         strncpy(_ua_version,ver,sizeof(_ua_version));
1776         apply_user_agent(lc);
1777 }
1778
1779 const char *linphone_core_get_user_agent_name(void){
1780         return _ua_name;
1781 }
1782
1783 const char *linphone_core_get_user_agent_version(void){
1784         return _ua_version;
1785 }
1786
1787 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1788         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1789         ms_warning("%s",msg);
1790         if (lc->vtable.display_warning)
1791                 lc->vtable.display_warning(lc,msg);
1792         ms_free(msg);
1793 }
1794
1795 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1796         return
1797                 tr2->udp_port==tr1->udp_port &&
1798                 tr2->tcp_port==tr1->tcp_port &&
1799                 tr2->dtls_port==tr1->dtls_port &&
1800                 tr2->tls_port==tr1->tls_port;
1801 }
1802
1803 static int apply_transports(LinphoneCore *lc){
1804         Sal *sal=lc->sal;
1805         const char *anyaddr;
1806         LCSipTransports *tr=&lc->sip_conf.transports;
1807
1808         /*first of all invalidate all current registrations so that we can register again with new transports*/
1809         __linphone_core_invalidate_registers(lc);
1810
1811         if (lc->sip_conf.ipv6_enabled)
1812                 anyaddr="::0";
1813         else
1814                 anyaddr="0.0.0.0";
1815
1816         sal_unlisten_ports(sal);
1817         if (tr->udp_port>0){
1818                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1819                         transport_error(lc,"udp",tr->udp_port);
1820                         return -1;
1821                 }
1822         }
1823         if (tr->tcp_port>0){
1824                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1825                         transport_error(lc,"tcp",tr->tcp_port);
1826                 }
1827         }
1828         if (tr->tls_port>0){
1829                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1830                         transport_error(lc,"tls",tr->tls_port);
1831                 }
1832         }
1833         apply_user_agent(lc);
1834         return 0;
1835 }
1836
1837 /**
1838  * Sets the ports to be used for each of transport (UDP or TCP)
1839  *
1840  * A zero value port for a given transport means the transport
1841  * is not used.
1842  *
1843  * @ingroup network_parameters
1844 **/
1845 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1846
1847         if (transports_unchanged(tr,&lc->sip_conf.transports))
1848                 return 0;
1849         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1850
1851         if (linphone_core_ready(lc)){
1852                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1853                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1854                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1855         }
1856
1857         if (lc->sal==NULL) return 0;
1858         return apply_transports(lc);
1859 }
1860
1861 /**
1862  * Retrieves the ports used for each transport (udp, tcp).
1863  * A zero value port for a given transport means the transport
1864  * is not used.
1865  * @ingroup network_parameters
1866 **/
1867 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1868         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1869         return 0;
1870 }
1871
1872 /**
1873  * Sets the UDP port to be used by SIP.
1874  *
1875  * Deprecated: use linphone_core_set_sip_transports() instead.
1876  * @ingroup network_parameters
1877 **/
1878 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1879 {
1880         LCSipTransports tr;
1881         memset(&tr,0,sizeof(tr));
1882         tr.udp_port=port;
1883         linphone_core_set_sip_transports (lc,&tr);
1884 }
1885
1886 /**
1887  * Returns TRUE if IPv6 is enabled.
1888  *
1889  * @ingroup network_parameters
1890  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1891 **/
1892 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1893         return lc->sip_conf.ipv6_enabled;
1894 }
1895
1896 /**
1897  * Turns IPv6 support on or off.
1898  *
1899  * @ingroup network_parameters
1900  *
1901  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1902  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1903  * By default IPv6 support is off.
1904 **/
1905 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1906         if (lc->sip_conf.ipv6_enabled!=val){
1907                 lc->sip_conf.ipv6_enabled=val;
1908                 if (lc->sal){
1909                         /* we need to restart eXosip */
1910                         apply_transports(lc);
1911                 }
1912         }
1913 }
1914
1915
1916 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1917         char result[LINPHONE_IPADDR_SIZE];
1918         bool_t new_status=lc->network_last_status;
1919
1920         /* only do the network up checking every five seconds */
1921         if (lc->network_last_check==0 || (curtime-lc->network_last_check)>=5){
1922                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1923                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1924                         new_status=TRUE;
1925                 }else new_status=FALSE;
1926                 lc->network_last_check=curtime;
1927                 if (new_status!=lc->network_last_status) {
1928                         if (new_status){
1929                                 ms_message("New local ip address is %s",result);
1930                         }
1931                         set_network_reachable(lc,new_status, curtime);
1932                         lc->network_last_status=new_status;
1933                 }
1934         }
1935 }
1936
1937 static void proxy_update(LinphoneCore *lc){
1938         MSList *elem,*next;
1939         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1940         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1941                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1942                 next=elem->next;
1943                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1944                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1945                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1946                         linphone_proxy_config_destroy(cfg);
1947                 }
1948         }
1949 }
1950
1951 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1952         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1953         if (lf!=NULL){
1954                 lf->info=info;
1955                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1956                 if (lc->vtable.buddy_info_updated)
1957                         lc->vtable.buddy_info_updated(lc,lf);
1958         }else{
1959                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1960         }
1961 }
1962
1963 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1964         MSList *elem;
1965         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1966         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1967                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1968                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1969                         if (req->results!=NULL){
1970                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1971                                 ms_list_free(req->results);
1972                                 req->results=NULL;
1973                                 assign_buddy_info(lc,i);
1974                         }
1975                         sip_setup_context_buddy_lookup_free(ctx,req);
1976                         elem->data=NULL;
1977                 }
1978         }
1979         /*purge completed requests */
1980         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1981                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1982         }
1983 }
1984
1985 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1986         const MSList *elem;
1987         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1988         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1989                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1990                 if (lf->info==NULL){
1991                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1992                                 if (linphone_address_get_username(lf->uri)!=NULL){
1993                                         BuddyLookupRequest *req;
1994                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1995                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1996                                         buddy_lookup_request_set_key(req,tmp);
1997                                         buddy_lookup_request_set_max_results(req,1);
1998                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1999                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
2000                                         ms_free(tmp);
2001                                 }
2002                         }
2003                 }
2004         }
2005 }
2006
2007 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
2008         LinphoneProxyConfig *cfg=NULL;
2009         linphone_core_get_default_proxy(lc,&cfg);
2010         if (cfg){
2011                 if (lc->bl_refresh){
2012                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
2013                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
2014                                 linphone_core_grab_buddy_infos(lc,cfg);
2015                                 lc->bl_refresh=FALSE;
2016                         }
2017                 }
2018                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
2019         }
2020 }
2021
2022 /**
2023  * Main loop function. It is crucial that your application call it periodically.
2024  *
2025  * @ingroup initializing
2026  * linphone_core_iterate() performs various backgrounds tasks:
2027  * - receiving of SIP messages
2028  * - handles timers and timeout
2029  * - performs registration to proxies
2030  * - authentication retries
2031  * The application MUST call this function periodically, in its main loop.
2032  * Be careful that this function must be called from the same thread as
2033  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
2034  * serialized with a mutex.
2035 **/
2036 void linphone_core_iterate(LinphoneCore *lc){
2037         MSList *calls;
2038         LinphoneCall *call;
2039         time_t curtime=time(NULL);
2040         int elapsed;
2041         bool_t one_second_elapsed=FALSE;
2042
2043         if (curtime-lc->prevtime>=1){
2044                 lc->prevtime=curtime;
2045                 one_second_elapsed=TRUE;
2046         }
2047
2048         if (lc->ecc!=NULL){
2049                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
2050                 if (ecs!=LinphoneEcCalibratorInProgress){
2051                         if (lc->ecc->cb)
2052                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
2053                         if (ecs==LinphoneEcCalibratorDone){
2054                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
2055                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-(len/2),0));
2056                         } else if (ecs == LinphoneEcCalibratorFailed) {
2057                                 lp_config_set_int(lc->config, "sound", "ec_delay", LP_CONFIG_DEFAULT_INT(lc->config, "ec_delay", 250));
2058                         } else if (ecs == LinphoneEcCalibratorDoneNoEcho) {
2059                                 linphone_core_enable_echo_cancellation(lc, FALSE);
2060                         }
2061                         ec_calibrator_destroy(lc->ecc);
2062                         lc->ecc=NULL;
2063                 }
2064         }
2065
2066         if (lc->preview_finished){
2067                 lc->preview_finished=0;
2068                 ring_stop(lc->ringstream);
2069                 lc->ringstream=NULL;
2070                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
2071         }
2072
2073         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
2074             && (curtime-lc->dmfs_playing_start_time)>5){
2075                 ring_stop(lc->ringstream);
2076                 lc->ringstream=NULL;
2077                 lc->dmfs_playing_start_time=0;
2078         }
2079
2080         sal_iterate(lc->sal);
2081         if (lc->msevq) ms_event_queue_pump(lc->msevq);
2082         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
2083
2084         proxy_update(lc);
2085
2086         //we have to iterate for each call
2087         calls= lc->calls;
2088         while(calls!= NULL){
2089                 call = (LinphoneCall *)calls->data;
2090                 elapsed = curtime-call->start_time;
2091                  /* get immediately a reference to next one in case the one
2092                  we are going to examine is destroy and removed during
2093                  linphone_core_start_invite() */
2094                 calls=calls->next;
2095                 linphone_call_background_tasks(call,one_second_elapsed);
2096                 if (call->state==LinphoneCallOutgoingInit && (curtime-call->start_time>=2)){
2097                         /*start the call even if the OPTIONS reply did not arrive*/
2098                         if (call->ice_session != NULL) {
2099                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
2100                                                 ,linphone_core_get_stun_server(lc));
2101                                 linphone_call_delete_ice_session(call);
2102                                 linphone_call_stop_media_streams_for_ice_gathering(call);
2103                         }
2104 #ifdef BUILD_UPNP
2105                         if (call->upnp_session != NULL) {
2106                                 ms_warning("uPnP mapping has not finished yet, proceeded with the call without uPnP anyway.");
2107                                 linphone_call_delete_upnp_session(call);
2108                         }
2109 #endif //BUILD_UPNP
2110                         linphone_core_start_invite(lc,call);
2111                 }
2112                 if (call->state==LinphoneCallIncomingReceived){
2113                         ms_message("incoming call ringing for %i seconds",elapsed);
2114                         if (elapsed>lc->sip_conf.inc_timeout){
2115                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
2116                                 call->log->status=LinphoneCallMissed;
2117                                 call->reason=LinphoneReasonNotAnswered;
2118                                 linphone_core_terminate_call(lc,call);
2119                         }
2120                 }
2121                 if (lc->sip_conf.in_call_timeout > 0 && elapsed>lc->sip_conf.in_call_timeout) {
2122                         ms_message("in call timeout (%i)",lc->sip_conf.in_call_timeout);
2123                         linphone_core_terminate_call(lc,call);
2124                 }
2125         }
2126
2127         if (linphone_core_video_preview_enabled(lc)){
2128                 if (lc->previewstream==NULL && lc->calls==NULL)
2129                         toggle_video_preview(lc,TRUE);
2130 #ifdef VIDEO_ENABLED
2131                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
2132 #endif
2133         }else{
2134                 if (lc->previewstream!=NULL)
2135                         toggle_video_preview(lc,FALSE);
2136         }
2137
2138         linphone_core_run_hooks(lc);
2139         linphone_core_do_plugin_tasks(lc);
2140
2141         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
2142             (curtime-lc->netup_time)>3){
2143                 linphone_core_send_initial_subscribes(lc);
2144                 lc->initial_subscribes_sent=TRUE;
2145         }
2146
2147         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
2148                 lp_config_sync(lc->config);
2149         }
2150 }
2151
2152 /**
2153  * Interpret a call destination as supplied by the user, and returns a fully qualified
2154  * LinphoneAddress.
2155  *
2156  * @ingroup call_control
2157  *
2158  * A sip address should look like DisplayName <sip:username@domain:port> .
2159  * Basically this function performs the following tasks
2160  * - if a phone number is entered, prepend country prefix of the default proxy
2161  *   configuration, eventually escape the '+' by 00.
2162  * - if no domain part is supplied, append the domain name of the default proxy
2163  * - if no sip: is present, prepend it
2164  *
2165  * The result is a syntaxically correct SIP address.
2166 **/
2167
2168 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
2169         enum_lookup_res_t *enumres=NULL;
2170         char *enum_domain=NULL;
2171         LinphoneProxyConfig *proxy=lc->default_proxy;;
2172         char *tmpurl;
2173         LinphoneAddress *uri;
2174
2175         if (is_enum(url,&enum_domain)){
2176                 if (lc->vtable.display_status!=NULL)
2177                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
2178                 if (enum_lookup(enum_domain,&enumres)<0){
2179                         if (lc->vtable.display_status!=NULL)
2180                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
2181                         ms_free(enum_domain);
2182                         return NULL;
2183                 }
2184                 ms_free(enum_domain);
2185                 tmpurl=enumres->sip_address[0];
2186                 uri=linphone_address_new(tmpurl);
2187                 enum_lookup_res_free(enumres);
2188                 return uri;
2189         }
2190         /* check if we have a "sip:" */
2191         if (strstr(url,"sip:")==NULL){
2192                 /* this doesn't look like a true sip uri */
2193                 if (strchr(url,'@')!=NULL){
2194                         /* seems like sip: is missing !*/
2195                         tmpurl=ms_strdup_printf("sip:%s",url);
2196                         uri=linphone_address_new(tmpurl);
2197                         ms_free(tmpurl);
2198                         if (uri){
2199                                 return uri;
2200                         }
2201                 }
2202
2203                 if (proxy!=NULL){
2204                         /* append the proxy domain suffix */
2205                         const char *identity=linphone_proxy_config_get_identity(proxy);
2206                         char normalized_username[128];
2207                         uri=linphone_address_new(identity);
2208                         if (uri==NULL){
2209                                 return NULL;
2210                         }
2211                         linphone_address_set_display_name(uri,NULL);
2212                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2213                                                                 sizeof(normalized_username));
2214                         linphone_address_set_username(uri,normalized_username);
2215                         return uri;
2216                 }else return NULL;
2217         }
2218         uri=linphone_address_new(url);
2219         if (uri!=NULL){
2220                 return uri;
2221         }
2222         /* else we could not do anything with url given by user, so display an error */
2223         if (lc->vtable.display_warning!=NULL){
2224                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2225         }
2226         return NULL;
2227 }
2228
2229 /**
2230  * Returns the default identity SIP address.
2231  *
2232  * @ingroup proxies
2233  * This is an helper function:
2234  *
2235  * If no default proxy is set, this will return the primary contact (
2236  * see linphone_core_get_primary_contact() ). If a default proxy is set
2237  * it returns the registered identity on the proxy.
2238 **/
2239 const char * linphone_core_get_identity(LinphoneCore *lc){
2240         LinphoneProxyConfig *proxy=NULL;
2241         const char *from;
2242         linphone_core_get_default_proxy(lc,&proxy);
2243         if (proxy!=NULL) {
2244                 from=linphone_proxy_config_get_identity(proxy);
2245         }else from=linphone_core_get_primary_contact(lc);
2246         return from;
2247 }
2248
2249 const char * linphone_core_get_route(LinphoneCore *lc){
2250         LinphoneProxyConfig *proxy=NULL;
2251         const char *route=NULL;
2252         linphone_core_get_default_proxy(lc,&proxy);
2253         if (proxy!=NULL) {
2254                 route=linphone_proxy_config_get_route(proxy);
2255         }
2256         return route;
2257 }
2258
2259 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2260         if (call->refer_pending){
2261                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2262                 LinphoneCall *newcall;
2263                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2264                 cp->referer=call;
2265                 ms_message("Starting new call to refered address %s",call->refer_to);
2266                 call->refer_pending=FALSE;
2267                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2268                 linphone_call_params_destroy(cp);
2269                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2270         }
2271 }
2272
2273 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2274         if (referer->op!=NULL){
2275                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2276         }
2277 }
2278
2279 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2280         const MSList *elem;
2281         LinphoneProxyConfig *found_cfg=NULL;
2282         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2283
2284         /*always prefer the default proxy if it is matching the destination uri*/
2285         if (default_cfg){
2286                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2287                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2288                         return default_cfg;
2289         }
2290
2291         /*otherwise iterate through the other proxy config and return the first matching*/
2292         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2293                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2294                 const char *domain=linphone_proxy_config_get_domain(cfg);
2295                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2296                         found_cfg=cfg;
2297                         break;
2298                 }
2299         }
2300         return found_cfg;
2301 }
2302
2303 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2304         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2305         if (cfg==NULL)
2306                 linphone_core_get_default_proxy (lc,&cfg);
2307         if (cfg!=NULL){
2308                 if (route) *route=linphone_proxy_config_get_route(cfg);
2309                 return linphone_proxy_config_get_identity (cfg);
2310         }
2311         return linphone_core_get_primary_contact (lc);
2312 }
2313
2314 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2315         LinphoneAddress *ctt;
2316         const char *localip=call->localip;
2317
2318         /* first use user's supplied ip address if asked*/
2319         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2320                 ctt=linphone_core_get_primary_contact_parsed(lc);
2321                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2322                         linphone_core_get_nat_address_resolved(lc));
2323         }
2324
2325         /* if already choosed, don't change it */
2326         if (call->op && sal_op_get_contact(call->op)!=NULL){
2327                 return NULL;
2328         }
2329         /* if the ping OPTIONS request succeeded use the contact guessed from the
2330          received, rport*/
2331         if (call->ping_op){
2332                 const char *guessed=sal_op_get_contact(call->ping_op);
2333                 if (guessed){
2334                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2335                         return ms_strdup(guessed);
2336                 }
2337         }
2338
2339         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2340         if (dest_proxy && dest_proxy->op){
2341                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2342                 if (fixed_contact) {
2343                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2344                         return ms_strdup(fixed_contact);
2345                 }
2346         }
2347
2348         ctt=linphone_core_get_primary_contact_parsed(lc);
2349
2350         if (ctt!=NULL){
2351                 char *ret;
2352                 /*otherwise use supllied localip*/
2353                 linphone_address_set_domain(ctt,localip);
2354                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2355                 ret=linphone_address_as_string_uri_only(ctt);
2356                 linphone_address_destroy(ctt);
2357                 ms_message("Contact has been fixed using local ip to %s",ret);
2358                 return ret;
2359         }
2360         return NULL;
2361 }
2362
2363 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2364         bool_t ice_ready = FALSE;
2365         bool_t upnp_ready = FALSE;
2366         bool_t ping_ready = FALSE;
2367
2368         if (call->ice_session != NULL) {
2369                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2370         } else {
2371                 ice_ready = TRUE;
2372         }
2373 #ifdef BUILD_UPNP
2374         if (call->upnp_session != NULL) {
2375                 if (linphone_upnp_session_get_state(call->upnp_session) == LinphoneUpnpStateOk) upnp_ready = TRUE;
2376         } else {
2377                 upnp_ready = TRUE;
2378         }
2379 #endif //BUILD_UPNP
2380         if (call->ping_op != NULL) {
2381                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2382         } else {
2383                 ping_ready = TRUE;
2384         }
2385
2386         if ((ice_ready == TRUE) && (upnp_ready == TRUE) && (ping_ready == TRUE)) {
2387                 return linphone_core_start_invite(lc, call);
2388         }
2389         return 0;
2390 }
2391
2392 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2393         int err;
2394         char *contact;
2395         char *real_url,*barmsg;
2396         char *from;
2397         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2398
2399         /*try to be best-effort in giving real local or routable contact address */
2400         contact=get_fixed_contact(lc,call,dest_proxy);
2401         if (contact){
2402                 sal_op_set_contact(call->op, contact);
2403                 ms_free(contact);
2404         }
2405         linphone_core_stop_dtmf_stream(lc);
2406         linphone_call_init_media_streams(call);
2407         if (lc->ringstream==NULL)
2408                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2409         linphone_call_make_local_media_description(lc,call);
2410         if (!lc->sip_conf.sdp_200_ack){
2411                 call->media_pending=TRUE;
2412                 sal_call_set_local_media_description(call->op,call->localdesc);
2413         }
2414         real_url=linphone_address_as_string(call->log->to);
2415         from=linphone_address_as_string(call->log->from);
2416         err=sal_call(call->op,from,real_url);
2417         call->log->call_id=ms_strdup(sal_op_get_call_id(call->op)); /*must be known at that time*/
2418
2419         if (lc->sip_conf.sdp_200_ack){
2420                 call->media_pending=TRUE;
2421                 sal_call_set_local_media_description(call->op,call->localdesc);
2422         }
2423         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2424         if (lc->vtable.display_status!=NULL)
2425                 lc->vtable.display_status(lc,barmsg);
2426         ms_free(barmsg);
2427
2428         if (err<0){
2429                 if (lc->vtable.display_status!=NULL)
2430                         lc->vtable.display_status(lc,_("Could not call"));
2431                 linphone_call_stop_media_streams(call);
2432                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2433         }else {
2434                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2435         }
2436         ms_free(real_url);
2437         ms_free(from);
2438         return err;
2439 }
2440
2441 /**
2442  * Initiates an outgoing call
2443  *
2444  * @ingroup call_control
2445  * @param lc the LinphoneCore object
2446  * @param url the destination of the call (sip address, or phone number).
2447  *
2448  * The application doesn't own a reference to the returned LinphoneCall object.
2449  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2450  *
2451  * @return a LinphoneCall object or NULL in case of failure
2452 **/
2453 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2454         LinphoneCall *call;
2455         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2456         p->has_video &= !!lc->video_policy.automatically_initiate;
2457         call=linphone_core_invite_with_params(lc,url,p);
2458         linphone_call_params_destroy(p);
2459         return call;
2460 }
2461
2462
2463 /**
2464  * Initiates an outgoing call according to supplied call parameters
2465  *
2466  * @ingroup call_control
2467  * @param lc the LinphoneCore object
2468  * @param url the destination of the call (sip address, or phone number).
2469  * @param p call parameters
2470  *
2471  * The application doesn't own a reference to the returned LinphoneCall object.
2472  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2473  *
2474  * @return a LinphoneCall object or NULL in case of failure
2475 **/
2476 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2477         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2478         if (addr){
2479                 LinphoneCall *call;
2480                 call=linphone_core_invite_address_with_params(lc,addr,p);
2481                 linphone_address_destroy(addr);
2482                 return call;
2483         }
2484         return NULL;
2485 }
2486
2487 /**
2488  * Initiates an outgoing call given a destination LinphoneAddress
2489  *
2490  * @ingroup call_control
2491  * @param lc the LinphoneCore object
2492  * @param addr the destination of the call (sip address).
2493  *
2494  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2495  * created by linphone_core_interpret_url().
2496  * The application doesn't own a reference to the returned LinphoneCall object.
2497  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2498  *
2499  * @return a LinphoneCall object or NULL in case of failure
2500 **/
2501 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2502         LinphoneCall *call;
2503         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2504         p->has_video &= !!lc->video_policy.automatically_initiate;
2505         call=linphone_core_invite_address_with_params (lc,addr,p);
2506         linphone_call_params_destroy(p);
2507         return call;
2508 }
2509
2510
2511 /**
2512  * Initiates an outgoing call given a destination LinphoneAddress
2513  *
2514  * @ingroup call_control
2515  * @param lc the LinphoneCore object
2516  * @param addr the destination of the call (sip address).
2517         @param params call parameters
2518  *
2519  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2520  * created by linphone_core_interpret_url().
2521  * The application doesn't own a reference to the returned LinphoneCall object.
2522  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2523  *
2524  * @return a LinphoneCall object or NULL in case of failure
2525 **/
2526 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2527 {
2528         const char *route=NULL;
2529         const char *from=NULL;
2530         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2531         LinphoneAddress *parsed_url2=NULL;
2532         char *real_url=NULL;
2533         LinphoneCall *call;
2534         bool_t defer = FALSE;
2535
2536         linphone_core_preempt_sound_resources(lc);
2537
2538         if(!linphone_core_can_we_add_call(lc)){
2539                 if (lc->vtable.display_warning)
2540                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2541                 return NULL;
2542         }
2543         linphone_core_get_default_proxy(lc,&proxy);
2544         route=linphone_core_get_route(lc);
2545
2546         real_url=linphone_address_as_string(addr);
2547         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2548
2549         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2550                 ms_message("Overriding default proxy setting for this call:");
2551                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2552         }
2553
2554         if (dest_proxy!=NULL)
2555                 from=linphone_proxy_config_get_identity(dest_proxy);
2556         else if (proxy!=NULL)
2557                 from=linphone_proxy_config_get_identity(proxy);
2558
2559         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2560         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2561
2562         parsed_url2=linphone_address_new(from);
2563
2564         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2565         call->dest_proxy=dest_proxy;
2566         sal_op_set_route(call->op,route);
2567
2568         if(linphone_core_add_call(lc,call)!= 0)
2569         {
2570                 ms_warning("we had a problem in adding the call into the invite ... weird");
2571                 linphone_call_unref(call);
2572                 return NULL;
2573         }
2574         /* this call becomes now the current one*/
2575         lc->current_call=call;
2576         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2577         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2578                 /* Defer the start of the call after the ICE gathering process. */
2579                 linphone_call_init_media_streams(call);
2580                 linphone_call_start_media_streams_for_ice_gathering(call);
2581                 call->start_time=time(NULL);
2582                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2583                         /* Ice candidates gathering failed, proceed with the call anyway. */
2584                         linphone_call_delete_ice_session(call);
2585                         linphone_call_stop_media_streams_for_ice_gathering(call);
2586                 } else {
2587                         defer = TRUE;
2588                 }
2589         }
2590         else if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseUpnp) {
2591 #ifdef BUILD_UPNP
2592                 linphone_call_init_media_streams(call);
2593                 call->start_time=time(NULL);
2594                 if (linphone_core_update_upnp(lc,call)<0) {
2595                         /* uPnP port mappings failed, proceed with the call anyway. */
2596                         linphone_call_delete_upnp_session(call);
2597                 } else {
2598                         defer = TRUE;
2599                 }
2600 #endif //BUILD_UPNP
2601         }
2602
2603         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2604                 /*defer the start of the call after the OPTIONS ping*/
2605                 call->ping_replied=FALSE;
2606                 call->ping_op=sal_op_new(lc->sal);
2607                 sal_ping(call->ping_op,from,real_url);
2608                 sal_op_set_user_pointer(call->ping_op,call);
2609                 call->start_time=time(NULL);
2610         }else{
2611                 if (defer==FALSE) linphone_core_start_invite(lc,call);
2612         }
2613
2614         if (real_url!=NULL) ms_free(real_url);
2615         return call;
2616 }
2617
2618 /**
2619  * Performs a simple call transfer to the specified destination.
2620  *
2621  * @ingroup call_control
2622  * The remote endpoint is expected to issue a new call to the specified destination.
2623  * The current call remains active and thus can be later paused or terminated.
2624 **/
2625 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2626 {
2627         char *real_url=NULL;
2628         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2629
2630         if (!real_parsed_url){
2631                 /* bad url */
2632                 return -1;
2633         }
2634         if (call==NULL){
2635                 ms_warning("No established call to refer.");
2636                 return -1;
2637         }
2638         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2639         real_url=linphone_address_as_string (real_parsed_url);
2640         sal_call_refer(call->op,real_url);
2641         ms_free(real_url);
2642         linphone_address_destroy(real_parsed_url);
2643         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2644         return 0;
2645 }
2646
2647 /**
2648  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2649  * @param lc linphone core object
2650  * @param call a running call you want to transfer
2651  * @param dest a running call whose remote person will receive the transfer
2652  *
2653  * @ingroup call_control
2654  *
2655  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2656  * The destination call is a call previously established to introduce the transfered person.
2657  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2658  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2659  * close the call with us (the 'dest' call).
2660 **/
2661 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2662         int result = sal_call_refer_with_replaces (call->op,dest->op);
2663         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2664         return result;
2665 }
2666
2667 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2668         LinphoneCall *call = linphone_core_get_current_call(lc);
2669         if(call != NULL)
2670         {
2671                 if(call->dir==LinphoneCallIncoming
2672                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2673                         return TRUE;
2674         }
2675         return FALSE;
2676 }
2677
2678 bool_t linphone_core_incompatible_security(LinphoneCore *lc, SalMediaDescription *md){
2679         if (linphone_core_is_media_encryption_mandatory(lc) && linphone_core_get_media_encryption(lc)==LinphoneMediaEncryptionSRTP){
2680                 int i;
2681                 for(i=0;i<md->n_active_streams;i++){
2682                         SalStreamDescription *sd=&md->streams[i];
2683                         if (sd->proto!=SalProtoRtpSavp){
2684                                 return TRUE;
2685                         }
2686                 }
2687         }
2688         return FALSE;
2689 }
2690
2691 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2692         char *barmesg;
2693         char *tmp;
2694         LinphoneAddress *from_parsed;
2695         SalMediaDescription *md;
2696         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2697         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2698
2699         linphone_call_make_local_media_description(lc,call);
2700         sal_call_set_local_media_description(call->op,call->localdesc);
2701         md=sal_call_get_final_media_description(call->op);
2702         if (md){
2703                 if (sal_media_description_empty(md) || linphone_core_incompatible_security(lc,md)){
2704                         sal_call_decline(call->op,SalReasonMedia,NULL);
2705                         linphone_call_unref(call);
2706                         return;
2707                 }
2708         }
2709
2710         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2711         linphone_address_clean(from_parsed);
2712         tmp=linphone_address_as_string(from_parsed);
2713         linphone_address_destroy(from_parsed);
2714         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2715             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2716         if (lc->vtable.show) lc->vtable.show(lc);
2717         if (lc->vtable.display_status)
2718             lc->vtable.display_status(lc,barmesg);
2719
2720         /* play the ring if this is the only call*/
2721         if (ms_list_size(lc->calls)==1){
2722                 lc->current_call=call;
2723                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2724                         ring_stop(lc->ringstream);
2725                         lc->ringstream=NULL;
2726                         lc->dmfs_playing_start_time=0;
2727                 }
2728                 if (lc->sound_conf.ring_sndcard!=NULL){
2729                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2730                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2731                                 ms_message("Starting local ring...");
2732                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2733                         }
2734                         else
2735                         {
2736                                 ms_message("the local ring is already started");
2737                         }
2738                 }
2739         }else{
2740                 /* else play a tone within the context of the current call */
2741                 call->ringing_beep=TRUE;
2742                 linphone_core_play_tone(lc);
2743         }
2744
2745         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2746
2747         if (call->state==LinphoneCallIncomingReceived){
2748                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2749
2750                 if (propose_early_media || ringback_tone!=NULL){
2751                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2752                         md=sal_call_get_final_media_description(call->op);
2753                         linphone_core_update_streams(lc,call,md);
2754                 }
2755                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2756                         linphone_core_accept_call(lc,call);
2757                 }
2758         }
2759         linphone_call_unref(call);
2760
2761         ms_free(barmesg);
2762         ms_free(tmp);
2763 }
2764
2765 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2766         const char *subject;
2767         call->camera_active=call->params.has_video;
2768         if (call->ice_session != NULL) {
2769                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2770         }
2771 #ifdef BUILD_UPNP
2772         if(call->upnp_session != NULL) {
2773                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2774         }
2775 #endif //BUILD_UPNP
2776         if (call->params.in_conference){
2777                 subject="Conference";
2778         }else{
2779                 subject="Media change";
2780         }
2781         if (lc->vtable.display_status)
2782                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2783         sal_call_set_local_media_description (call->op,call->localdesc);
2784         return sal_call_update(call->op,subject);
2785 }
2786
2787 /**
2788  * @ingroup call_control
2789  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2790  *
2791  * In this version this is limited to the following use cases:
2792  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2793  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2794  *
2795  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2796  * @param lc the core
2797  * @param call the call to be updated
2798  * @param params the new call parameters to use. (may be NULL)
2799  * @return 0 if successful, -1 otherwise.
2800 **/
2801 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2802         int err=0;
2803         if (params!=NULL){
2804                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2805 #ifdef VIDEO_ENABLED
2806                 bool_t has_video = call->params.has_video;
2807
2808                 // Video removing
2809                 if((call->videostream != NULL) && !params->has_video) {
2810                         if (call->ice_session != NULL) {
2811                                 ice_session_remove_check_list(call->ice_session, call->videostream->ms.ice_check_list);
2812                                 call->videostream->ms.ice_check_list = NULL;
2813                         }
2814 #ifdef BUILD_UPNP
2815                         if(call->upnp_session != NULL) {
2816                                 if (linphone_core_update_upnp(lc, call)<0) {
2817                                         /* uPnP port mappings failed, proceed with the call anyway. */
2818                                         linphone_call_delete_upnp_session(call);
2819                                 }
2820                         }
2821 #endif //BUILD_UPNP
2822                 }
2823
2824                 call->params = *params;
2825                 linphone_call_make_local_media_description(lc, call);
2826
2827                 // Video adding
2828                 if (!has_video && call->params.has_video) {
2829                         if (call->ice_session != NULL) {
2830                                 /* Defer call update until the ICE candidates gathering process has finished. */
2831                                 ms_message("Defer call update to gather ICE candidates");
2832                                 linphone_call_init_video_stream(call);
2833                                 video_stream_prepare_video(call->videostream);
2834                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2835                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2836                                         linphone_call_delete_ice_session(call);
2837                                 } else {
2838                                         return err;
2839                                 }
2840                         }
2841 #ifdef BUILD_UPNP
2842                         if(call->upnp_session != NULL) {
2843                                 ms_message("Defer call update to add uPnP port mappings");
2844                                 linphone_call_init_video_stream(call);
2845                                 video_stream_prepare_video(call->videostream);
2846                                 if (linphone_core_update_upnp(lc, call)<0) {
2847                                         /* uPnP port mappings failed, proceed with the call anyway. */
2848                                         linphone_call_delete_upnp_session(call);
2849                                 } else {
2850                                         return err;
2851                                 }
2852                         }
2853 #endif //BUILD_UPNP
2854                 }
2855 #endif
2856                 err = linphone_core_start_update_call(lc, call);
2857         }else{
2858 #ifdef VIDEO_ENABLED
2859                 if (call->videostream!=NULL){
2860                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2861                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2862                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2863                         }else video_stream_update_video_params(call->videostream);
2864                 }
2865 #endif
2866         }
2867
2868         return err;
2869 }
2870
2871 /**
2872  * @ingroup call_control
2873  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2874  *
2875  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2876  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2877  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2878  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2879  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2880  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2881  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2882  *
2883  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2884 **/
2885 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2886         if (call->state==LinphoneCallUpdatedByRemote){
2887                 call->defer_update=TRUE;
2888                 return 0;
2889         }
2890         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2891         return -1;
2892 }
2893
2894 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2895         SalMediaDescription *md;
2896         if (call->ice_session != NULL) {
2897                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2898                         /* Defer the sending of the answer until there are no losing pairs left. */
2899                         return 0;
2900                 }
2901                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2902         }
2903 #ifdef BUILD_UPNP
2904         if(call->upnp_session != NULL) {
2905                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2906         }
2907 #endif //BUILD_UPNP
2908         linphone_call_update_remote_session_id_and_ver(call);
2909         sal_call_set_local_media_description(call->op,call->localdesc);
2910         sal_call_accept(call->op);
2911         md=sal_call_get_final_media_description(call->op);
2912         if (md && !sal_media_description_empty(md))
2913                 linphone_core_update_streams (lc,call,md);
2914         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2915         return 0;
2916 }
2917
2918 /**
2919  * @ingroup call_control
2920  * Accept call modifications initiated by other end.
2921  *
2922  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2923  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2924  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2925  * requested by the other party, such as whether a video stream is requested.
2926  *
2927  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2928  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2929  * If params is not NULL, then the update will be accepted according to the parameters passed.
2930  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2931  * (see linphone_call_params_enable_video()).
2932  * @param lc the linphone core object.
2933  * @param call the LinphoneCall object
2934  * @param params a LinphoneCallParams object describing the call parameters to accept.
2935  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2936 **/
2937 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2938         SalMediaDescription *remote_desc;
2939         bool_t keep_sdp_version;
2940 #ifdef VIDEO_ENABLED
2941         bool_t old_has_video = call->params.has_video;
2942 #endif
2943         if (call->state!=LinphoneCallUpdatedByRemote){
2944                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2945                          linphone_call_state_to_string(call->state));
2946                 return -1;
2947         }
2948         remote_desc = sal_call_get_remote_media_description(call->op);
2949         keep_sdp_version = lp_config_get_int(lc->config, "sip", "keep_sdp_version", 0);
2950         if (keep_sdp_version &&(remote_desc->session_id == call->remote_session_id) && (remote_desc->session_ver == call->remote_session_ver)) {
2951                 /* Remote has sent an INVITE with the same SDP as before, so send a 200 OK with the same SDP as before. */
2952                 ms_warning("SDP version has not changed, send same SDP as before.");
2953                 sal_call_accept(call->op);
2954                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2955                 return 0;
2956         }
2957         if (params==NULL){
2958                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2959         }else
2960                 call->params=*params;
2961
2962         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2963                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2964                 call->params.has_video=FALSE;
2965         }
2966         if (call->current_params.in_conference) {
2967                 ms_warning("Video isn't supported in conference");
2968                 call->params.has_video = FALSE;
2969         }
2970         call->params.has_video &= linphone_core_media_description_contains_video_stream(remote_desc);
2971         call->camera_active=call->params.has_video;
2972         linphone_call_make_local_media_description(lc,call);
2973         if (call->ice_session != NULL) {
2974                 linphone_core_update_ice_from_remote_media_description(call, remote_desc);
2975 #ifdef VIDEO_ENABLED
2976                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2977                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2978                                 linphone_call_init_video_stream(call);
2979                                 video_stream_prepare_video(call->videostream);
2980                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2981                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2982                                         linphone_call_delete_ice_session(call);
2983                                 } else return 0;
2984                         }
2985                 }
2986 #endif //VIDEO_ENABLED
2987         }
2988
2989 #if BUILD_UPNP
2990         if(call->upnp_session != NULL) {
2991                 linphone_core_update_upnp_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2992 #ifdef VIDEO_ENABLED
2993                 if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2994                         linphone_call_init_video_stream(call);
2995                         video_stream_prepare_video(call->videostream);
2996                         if (linphone_core_update_upnp(lc, call)<0) {
2997                                 /* uPnP update failed, proceed with the call anyway. */
2998                                 linphone_call_delete_upnp_session(call);
2999                         } else return 0;
3000                 }
3001 #endif //VIDEO_ENABLED
3002         }
3003 #endif //BUILD_UPNP
3004
3005         linphone_core_start_accept_call_update(lc, call);
3006         return 0;
3007 }
3008
3009 /**
3010  * Accept an incoming call.
3011  *
3012  * @ingroup call_control
3013  * Basically the application is notified of incoming calls within the
3014  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3015  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3016  * The application can later accept the call using this method.
3017  * @param lc the LinphoneCore object
3018  * @param call the LinphoneCall object representing the call to be answered.
3019  *
3020 **/
3021 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
3022         return linphone_core_accept_call_with_params(lc,call,NULL);
3023 }
3024
3025 /**
3026  * Accept an incoming call, with parameters.
3027  *
3028  * @ingroup call_control
3029  * Basically the application is notified of incoming calls within the
3030  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3031  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3032  * The application can later accept the call using
3033  * this method.
3034  * @param lc the LinphoneCore object
3035  * @param call the LinphoneCall object representing the call to be answered.
3036  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
3037  *
3038 **/
3039 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
3040 {
3041         LinphoneProxyConfig *cfg=NULL;
3042         const char *contact=NULL;
3043         SalOp *replaced;
3044         SalMediaDescription *new_md;
3045         bool_t was_ringing=FALSE;
3046
3047         if (call==NULL){
3048                 //if just one call is present answer the only one ...
3049                 if(linphone_core_get_calls_nb (lc) != 1)
3050                         return -1;
3051                 else
3052                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
3053         }
3054
3055         if (call->state==LinphoneCallConnected){
3056                 /*call already accepted*/
3057                 return -1;
3058         }
3059
3060         /* check if this call is supposed to replace an already running one*/
3061         replaced=sal_call_get_replaces(call->op);
3062         if (replaced){
3063                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
3064                 if (rc){
3065                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
3066                                    call,rc);
3067                         linphone_core_terminate_call(lc,rc);
3068                 }
3069         }
3070
3071         if (lc->current_call!=call){
3072                 linphone_core_preempt_sound_resources(lc);
3073         }
3074
3075         /*stop ringing */
3076         if (lc->ringstream!=NULL) {
3077                 ms_message("stop ringing");
3078                 ring_stop(lc->ringstream);
3079                 ms_message("ring stopped");
3080                 lc->ringstream=NULL;
3081                 was_ringing=TRUE;
3082         }
3083         if (call->ringing_beep){
3084                 linphone_core_stop_dtmf(lc);
3085                 call->ringing_beep=FALSE;
3086         }
3087
3088         linphone_core_get_default_proxy(lc,&cfg);
3089         call->dest_proxy=cfg;
3090         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
3091
3092         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
3093                 ms_message("Overriding default proxy setting for this call:");
3094                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
3095         }
3096         /*try to be best-effort in giving real local or routable contact address*/
3097         contact=get_fixed_contact(lc,call,call->dest_proxy);
3098         if (contact)
3099                 sal_op_set_contact(call->op,contact);
3100
3101         if (params){
3102                 const SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
3103                 _linphone_call_params_copy(&call->params,params);
3104                 // There might not be a md if the INVITE was lacking an SDP
3105                 // In this case we use the parameters as is.
3106                 if (md) call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
3107                 call->camera_active=call->params.has_video;
3108                 linphone_call_make_local_media_description(lc,call);
3109                 sal_call_set_local_media_description(call->op,call->localdesc);
3110         }
3111
3112         if (call->audiostream==NULL)
3113                 linphone_call_init_media_streams(call);
3114         if (!was_ringing && call->audiostream->ms.ticker==NULL){
3115                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
3116         }
3117
3118         linphone_call_update_remote_session_id_and_ver(call);
3119         sal_call_accept(call->op);
3120         if (lc->vtable.display_status!=NULL)
3121                 lc->vtable.display_status(lc,_("Connected."));
3122         lc->current_call=call;
3123         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
3124         new_md=sal_call_get_final_media_description(call->op);
3125         linphone_core_update_streams(lc, call, new_md);
3126         if (new_md){
3127                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
3128         }else call->media_pending=TRUE;
3129
3130         ms_message("call answered.");
3131         return 0;
3132 }
3133
3134 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
3135         sal_call_terminate(call->op);
3136
3137         /*stop ringing*/
3138         if (lc->ringstream!=NULL) {
3139                 ring_stop(lc->ringstream);
3140                 lc->ringstream=NULL;
3141         }
3142         linphone_call_stop_media_streams(call);
3143
3144 #ifdef BUILD_UPNP
3145         linphone_call_delete_upnp_session(call);
3146 #endif //BUILD_UPNP
3147
3148         if (lc->vtable.display_status!=NULL)
3149                 lc->vtable.display_status(lc,_("Call aborted") );
3150         linphone_call_set_state(call,LinphoneCallError,error);
3151         return 0;
3152 }
3153
3154 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
3155         if (call->state==LinphoneCallIncomingReceived){
3156                 if (call->reason!=LinphoneReasonNotAnswered)
3157                         call->reason=LinphoneReasonDeclined;
3158         }
3159         /*stop ringing*/
3160         if (lc->ringstream!=NULL) {
3161                 ring_stop(lc->ringstream);
3162                 lc->ringstream=NULL;
3163         }
3164
3165         linphone_call_stop_media_streams(call);
3166
3167 #ifdef BUILD_UPNP
3168         linphone_call_delete_upnp_session(call);
3169 #endif //BUILD_UPNP
3170
3171         if (lc->vtable.display_status!=NULL)
3172                 lc->vtable.display_status(lc,_("Call ended") );
3173         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
3174 }
3175
3176 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
3177         if (call->state==LinphoneCallIncomingReceived){
3178                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
3179                 call->reason=LinphoneReasonDeclined;
3180                 terminate_call(lc,call);
3181         }else{
3182                 ms_error("Bad state for call redirection.");
3183                 return -1;
3184     }
3185         return 0;
3186 }
3187
3188
3189 /**
3190  * Terminates a call.
3191  *
3192  * @ingroup call_control
3193  * @param lc the LinphoneCore
3194  * @param the_call the LinphoneCall object representing the call to be terminated.
3195 **/
3196 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
3197 {
3198         LinphoneCall *call;
3199         if (the_call == NULL){
3200                 call = linphone_core_get_current_call(lc);
3201                 if (ms_list_size(lc->calls)==1){
3202                         call=(LinphoneCall*)lc->calls->data;
3203                 }else{
3204                         ms_warning("No unique call to terminate !");
3205                         return -1;
3206                 }
3207         }
3208         else
3209         {
3210                 call = the_call;
3211         }
3212         sal_call_terminate(call->op);
3213         terminate_call(lc,call);
3214         return 0;
3215 }
3216
3217 /**
3218  * Decline a pending incoming call, with a reason.
3219  *
3220  * @ingroup call_control
3221  *
3222  * @param lc the linphone core
3223  * @param call the LinphoneCall, must be in the IncomingReceived state.
3224  * @param reason the reason for rejecting the call: LinphoneReasonDeclined or LinphoneReasonBusy
3225 **/
3226 int linphone_core_decline_call(LinphoneCore *lc, LinphoneCall * call, LinphoneReason reason){
3227         SalReason sal_reason=SalReasonUnknown;
3228         if (call->state!=LinphoneCallIncomingReceived && call->state!=LinphoneCallIncomingEarlyMedia){
3229                 ms_error("linphone_core_decline_call(): Cannot decline a call that is in state %s",linphone_call_state_to_string(call->state));
3230                 return -1;
3231         }
3232         switch(reason){
3233                 case LinphoneReasonDeclined:
3234                         sal_reason=SalReasonDeclined;
3235                 break;
3236                 case LinphoneReasonBusy:
3237                         sal_reason=SalReasonBusy;
3238                 break;
3239                 default:
3240                         ms_error("linphone_core_decline_call(): unsupported reason %s",linphone_reason_to_string(reason));
3241                         return -1;
3242                 break;
3243         }
3244         sal_call_decline(call->op,sal_reason,NULL);
3245         terminate_call(lc,call);
3246         return 0;
3247 }
3248
3249 /**
3250  * Terminates all the calls.
3251  *
3252  * @ingroup call_control
3253  * @param lc The LinphoneCore
3254 **/
3255 int linphone_core_terminate_all_calls(LinphoneCore *lc){
3256         MSList *calls=lc->calls;
3257         while(calls) {
3258                 LinphoneCall *c=(LinphoneCall*)calls->data;
3259                 calls=calls->next;
3260                 linphone_core_terminate_call(lc,c);
3261         }
3262         return 0;
3263 }
3264
3265 /**
3266  * Returns the current list of calls.
3267  *
3268  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
3269  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
3270  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
3271  *
3272  * @ingroup call_control
3273 **/
3274 const MSList *linphone_core_get_calls(LinphoneCore *lc)
3275 {
3276         return lc->calls;
3277 }
3278
3279 /**
3280  * Returns TRUE if there is a call running.
3281  *
3282  * @ingroup call_control
3283 **/
3284 bool_t linphone_core_in_call(const LinphoneCore *lc){
3285         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
3286 }
3287
3288 /**
3289  * Returns The _LinphoneCall struct of the current call if one is in call
3290  *
3291  * @ingroup call_control
3292 **/
3293 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
3294 {
3295         return lc->current_call;
3296 }
3297
3298 /**
3299  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
3300  * this file will be played to the remote user.
3301  *
3302  * @ingroup call_control
3303 **/
3304 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
3305 {
3306         const char *subject=NULL;
3307
3308         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
3309                 ms_warning("Cannot pause this call, it is not active.");
3310                 return -1;
3311         }
3312         linphone_call_make_local_media_description(lc,call);
3313         if (call->ice_session != NULL) {
3314                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3315         }
3316 #ifdef BUILD_UPNP
3317         if(call->upnp_session != NULL) {
3318                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3319         }
3320 #endif //BUILD_UPNP
3321         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
3322                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3323                 subject="Call on hold";
3324         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
3325                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3326                 subject="Call on hold for me too";
3327         }else{
3328                 ms_error("No reason to pause this call, it is already paused or inactive.");
3329                 return -1;
3330         }
3331         sal_call_set_local_media_description(call->op,call->localdesc);
3332         if (sal_call_update(call->op,subject) != 0){
3333                 if (lc->vtable.display_warning)
3334                         lc->vtable.display_warning(lc,_("Could not pause the call"));
3335         }
3336         lc->current_call=NULL;
3337         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
3338         if (lc->vtable.display_status)
3339                 lc->vtable.display_status(lc,_("Pausing the current call..."));
3340         if (call->audiostream || call->videostream)
3341                 linphone_call_stop_media_streams (call);
3342         return 0;
3343 }
3344
3345 /**
3346  * Pause all currently running calls.
3347  * @ingroup call_control
3348 **/
3349 int linphone_core_pause_all_calls(LinphoneCore *lc){
3350         const MSList *elem;
3351         for(elem=lc->calls;elem!=NULL;elem=elem->next){
3352                 LinphoneCall *call=(LinphoneCall *)elem->data;
3353                 LinphoneCallState cs=linphone_call_get_state(call);
3354                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3355                         linphone_core_pause_call(lc,call);
3356                 }
3357         }
3358         return 0;
3359 }
3360
3361 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3362         LinphoneCall *current_call;
3363         if (linphone_core_is_in_conference(lc)){
3364                 linphone_core_leave_conference(lc);
3365                 return;
3366         }
3367         current_call=linphone_core_get_current_call(lc);
3368         if(current_call != NULL){
3369                 ms_message("Pausing automatically the current call.");
3370                 linphone_core_pause_call(lc,current_call);
3371         }
3372 }
3373
3374 /**
3375  * Resumes the call.
3376  *
3377  * @ingroup call_control
3378 **/
3379 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3380 {
3381         char temp[255]={0};
3382         LinphoneCall *call = the_call;
3383         const char *subject="Call resuming";
3384
3385         if(call->state!=LinphoneCallPaused ){
3386                 ms_warning("we cannot resume a call that has not been established and paused before");
3387                 return -1;
3388         }
3389         if (call->params.in_conference==FALSE){
3390                 linphone_core_preempt_sound_resources(lc);
3391                 ms_message("Resuming call %p",call);
3392         }
3393
3394         /* Stop playing music immediately. If remote side is a conference it
3395          prevents the participants to hear it while the 200OK comes back.*/
3396         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3397
3398         linphone_call_make_local_media_description(lc,the_call);
3399         if (call->ice_session != NULL) {
3400                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3401         }
3402 #ifdef BUILD_UPNP
3403         if(call->upnp_session != NULL) {
3404                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3405         }
3406 #endif //BUILD_UPNP
3407         sal_call_set_local_media_description(call->op,call->localdesc);
3408         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3409         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3410         if(sal_call_update(call->op,subject) != 0){
3411                 return -1;
3412         }
3413         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3414         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3415         if (lc->vtable.display_status)
3416                 lc->vtable.display_status(lc,temp);
3417         return 0;
3418 }
3419
3420 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3421         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3422         return !linphone_address_weak_equal (addr,raddr);
3423 }
3424
3425 /**
3426  * Get the call with the remote_address specified
3427  * @param lc
3428  * @param remote_address
3429  * @return the LinphoneCall of the call if found
3430  *
3431  * @ingroup call_control
3432  */
3433 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3434         LinphoneAddress *raddr=linphone_address_new(remote_address);
3435         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3436         if (elem) return (LinphoneCall*) elem->data;
3437         return NULL;
3438 }
3439
3440 int linphone_core_send_publish(LinphoneCore *lc,
3441                                LinphoneOnlineStatus presence_mode)
3442 {
3443         const MSList *elem;
3444         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3445                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3446                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3447         }
3448         return 0;
3449 }
3450
3451 /**
3452  * Set the incoming call timeout in seconds.
3453  *
3454  * @ingroup call_control
3455  * If an incoming call isn't answered for this timeout period, it is
3456  * automatically declined.
3457 **/
3458 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3459         lc->sip_conf.inc_timeout=seconds;
3460         if (linphone_core_ready(lc)){
3461                 lp_config_set_int(lc->config,"sip","inc_timeout",seconds);
3462         }
3463 }
3464
3465 /**
3466  * Returns the incoming call timeout
3467  *
3468  * @ingroup call_control
3469  * See linphone_core_set_inc_timeout() for details.
3470 **/
3471 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3472         return lc->sip_conf.inc_timeout;
3473 }
3474
3475 /**
3476  * Set the in call timeout in seconds.
3477  *
3478  * @ingroup call_control
3479  * After this timeout period, the call is automatically hangup.
3480 **/
3481 void linphone_core_set_in_call_timeout(LinphoneCore *lc, int seconds){
3482         lc->sip_conf.in_call_timeout=seconds;
3483 }
3484
3485 /**
3486  * Returns the in call timeout
3487  *
3488  * @ingroup call_control
3489  * See linphone_core_set_in_call_timeout() for details.
3490 **/
3491 int linphone_core_get_in_call_timeout(LinphoneCore *lc){
3492         return lc->sip_conf.in_call_timeout;
3493 }
3494
3495 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3496                                                                                                         const char *contact,
3497                                                                                                         LinphoneOnlineStatus presence_mode)
3498 {
3499         if (minutes_away>0) lc->minutes_away=minutes_away;
3500
3501         if (lc->alt_contact!=NULL) {
3502                 ms_free(lc->alt_contact);
3503                 lc->alt_contact=NULL;
3504         }
3505         if (contact) lc->alt_contact=ms_strdup(contact);
3506         if (lc->presence_mode!=presence_mode){
3507                 linphone_core_notify_all_friends(lc,presence_mode);
3508                 /*
3509                    Improve the use of all LINPHONE_STATUS available.
3510                    !TODO Do not mix "presence status" with "answer status code"..
3511                    Use correct parameter to follow sip_if_match/sip_etag.
3512                  */
3513                 linphone_core_send_publish(lc,presence_mode);
3514         }
3515         lc->presence_mode=presence_mode;
3516 }
3517
3518 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3519         return lc->presence_mode;
3520 }
3521
3522 /**
3523  * Get playback sound level in 0-100 scale.
3524  *
3525  * @ingroup media_parameters
3526 **/
3527 int linphone_core_get_play_level(LinphoneCore *lc)
3528 {
3529         return lc->sound_conf.play_lev;
3530 }
3531
3532 /**
3533  * Get ring sound level in 0-100 scale
3534  *
3535  * @ingroup media_parameters
3536 **/
3537 int linphone_core_get_ring_level(LinphoneCore *lc)
3538 {
3539         return lc->sound_conf.ring_lev;
3540 }
3541
3542 /**
3543  * Get sound capture level in 0-100 scale
3544  *
3545  * @ingroup media_parameters
3546 **/
3547 int linphone_core_get_rec_level(LinphoneCore *lc){
3548         return lc->sound_conf.rec_lev;
3549 }
3550
3551 /**
3552  * Set sound ring level in 0-100 scale
3553  *
3554  * @ingroup media_parameters
3555 **/
3556 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3557         MSSndCard *sndcard;
3558         lc->sound_conf.ring_lev=level;
3559         sndcard=lc->sound_conf.ring_sndcard;
3560         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3561 }
3562
3563 /**
3564  * Allow to control microphone level:  gain in db
3565  *
3566  * @ingroup media_parameters
3567 **/
3568 void linphone_core_set_mic_gain_db (LinphoneCore *lc, float gaindb){
3569         float gain=gaindb;
3570         LinphoneCall *call=linphone_core_get_current_call (lc);
3571         AudioStream *st;
3572
3573         lc->sound_conf.soft_mic_lev=gaindb;
3574
3575         if (linphone_core_ready(lc)){
3576                 lp_config_set_float(lc->config,"sound","mic_gain_db",lc->sound_conf.soft_mic_lev);
3577         }
3578
3579         if (call==NULL || (st=call->audiostream)==NULL){
3580                 ms_message("linphone_core_set_mic_gain_db(): no active call.");
3581                 return;
3582         }
3583         if (st->volrecv){
3584                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_DB_GAIN,&gain);
3585         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3586 }
3587
3588 /**
3589  * Get microphone gain in db.
3590  *
3591  * @ingroup media_parameters
3592 **/
3593 float linphone_core_get_mic_gain_db(LinphoneCore *lc) {
3594         return lc->sound_conf.soft_mic_lev;
3595 }
3596
3597 /**
3598  * Allow to control play level before entering sound card:  gain in db
3599  *
3600  * @ingroup media_parameters
3601 **/
3602 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3603         float gain=gaindb;
3604         LinphoneCall *call=linphone_core_get_current_call (lc);
3605         AudioStream *st;
3606
3607         lc->sound_conf.soft_play_lev=gaindb;
3608         if (linphone_core_ready(lc)){
3609                 lp_config_set_float(lc->config,"sound","playback_gain_db",lc->sound_conf.soft_play_lev);
3610         }
3611
3612         if (call==NULL || (st=call->audiostream)==NULL){
3613                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3614                 return;
3615         }
3616         if (st->volrecv){
3617                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3618         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3619 }
3620
3621 /**
3622  * Get playback gain in db before entering  sound card.
3623  *
3624  * @ingroup media_parameters
3625 **/
3626 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3627         return lc->sound_conf.soft_play_lev;
3628 }
3629
3630 /**
3631  * Set sound playback level in 0-100 scale
3632  *
3633  * @ingroup media_parameters
3634 **/
3635 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3636         MSSndCard *sndcard;
3637         lc->sound_conf.play_lev=level;
3638         sndcard=lc->sound_conf.play_sndcard;
3639         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3640 }
3641
3642 /**
3643  * Set sound capture level in 0-100 scale
3644  *
3645  * @ingroup media_parameters
3646 **/
3647 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3648 {
3649         MSSndCard *sndcard;
3650         lc->sound_conf.rec_lev=level;
3651         sndcard=lc->sound_conf.capt_sndcard;
3652         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3653 }
3654
3655 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3656         MSSndCard *sndcard=NULL;
3657         if (devid!=NULL){
3658                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3659                 if (sndcard!=NULL &&
3660                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3661                         ms_warning("%s card does not have the %s capability, ignoring.",
3662                                 devid,
3663                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3664                         sndcard=NULL;
3665                 }
3666         }
3667         if (sndcard==NULL) {
3668                 /* get a card that has read+write capabilities */
3669                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3670                 /* otherwise refine to the first card having the right capability*/
3671                 if (sndcard==NULL){
3672                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3673                         for(;elem!=NULL;elem=elem->next){
3674                                 sndcard=(MSSndCard*)elem->data;
3675                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3676                         }
3677                 }
3678                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3679                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3680                         if (elem) sndcard=(MSSndCard*)elem->data;
3681         }
3682         }
3683         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3684         return sndcard;
3685 }
3686
3687 /**
3688  * Returns true if the specified sound device can capture sound.
3689  *
3690  * @ingroup media_parameters
3691  * @param lc The LinphoneCore object
3692  * @param devid the device name as returned by linphone_core_get_sound_devices()
3693 **/
3694 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3695         MSSndCard *sndcard;
3696         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3697         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3698         return FALSE;
3699 }
3700
3701 /**
3702  * Returns true if the specified sound device can play sound.
3703  *
3704  * @ingroup media_parameters
3705  * @param lc The LinphoneCore object
3706  * @param devid the device name as returned by linphone_core_get_sound_devices()
3707 **/
3708 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3709         MSSndCard *sndcard;
3710         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3711         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3712         return FALSE;
3713 }
3714
3715 /**
3716  * Sets the sound device used for ringing.
3717  *
3718  * @ingroup media_parameters
3719  * @param lc The LinphoneCore object
3720  * @param devid the device name as returned by linphone_core_get_sound_devices()
3721 **/
3722 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3723         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3724         lc->sound_conf.ring_sndcard=card;
3725         if (card && linphone_core_ready(lc))
3726                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3727         return 0;
3728 }
3729
3730 /**
3731  * Sets the sound device used for playback.
3732  *
3733  * @ingroup media_parameters
3734  * @param lc The LinphoneCore object
3735  * @param devid the device name as returned by linphone_core_get_sound_devices()
3736 **/
3737 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3738         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3739         lc->sound_conf.play_sndcard=card;
3740         if (card &&  linphone_core_ready(lc))
3741                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3742         return 0;
3743 }
3744
3745 /**
3746  * Sets the sound device used for capture.
3747  *
3748  * @ingroup media_parameters
3749  * @param lc The LinphoneCore object
3750  * @param devid the device name as returned by linphone_core_get_sound_devices()
3751 **/
3752 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3753         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3754         lc->sound_conf.capt_sndcard=card;
3755         if (card &&  linphone_core_ready(lc))
3756                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3757         return 0;
3758 }
3759
3760 /**
3761  * Returns the name of the currently assigned sound device for ringing.
3762  *
3763  * @ingroup media_parameters
3764  * @param lc The LinphoneCore object
3765 **/
3766 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3767 {
3768         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3769         return NULL;
3770 }
3771
3772 /**
3773  * Returns the name of the currently assigned sound device for playback.
3774  *
3775  * @ingroup media_parameters
3776  * @param lc The LinphoneCore object
3777 **/
3778 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3779 {
3780         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3781 }
3782
3783 /**
3784  * Returns the name of the currently assigned sound device for capture.
3785  *
3786  * @ingroup media_parameters
3787  * @param lc The LinphoneCore object
3788 **/
3789 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3790 {
3791         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3792 }
3793
3794 /**
3795  * Returns an unmodifiable array of available sound devices.
3796  *
3797  * The array is NULL terminated.
3798  *
3799  * @ingroup media_parameters
3800  * @param lc The LinphoneCore object
3801 **/
3802 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3803         return lc->sound_conf.cards;
3804 }
3805
3806 /**
3807  * Returns an unmodifiable array of available video capture devices.
3808  *
3809  * @ingroup media_parameters
3810  * The array is NULL terminated.
3811 **/
3812 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3813         return lc->video_conf.cams;
3814 }
3815
3816 /**
3817  * Update detection of sound devices.
3818  *
3819  * Use this function when the application is notified of USB plug events, so that
3820  * list of available hardwares for sound playback and capture is updated.
3821  **/
3822 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3823         const char *ringer,*playback,*capture;
3824         ringer=linphone_core_get_ringer_device(lc);
3825         playback=linphone_core_get_playback_device(lc);
3826         capture=linphone_core_get_capture_device(lc);
3827         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3828         build_sound_devices_table(lc);
3829         linphone_core_set_ringer_device(lc,ringer);
3830         linphone_core_set_playback_device(lc,playback);
3831         linphone_core_set_capture_device(lc,capture);
3832 }
3833
3834 /**
3835  * Update detection of camera devices.
3836  *
3837  * Use this function when the application is notified of USB plug events, so that
3838  * list of available hardwares for video capture is updated.
3839  **/
3840 void linphone_core_reload_video_devices(LinphoneCore *lc){
3841         const char *devid;
3842         devid=linphone_core_get_video_device(lc);
3843         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3844         build_video_devices_table(lc);
3845         linphone_core_set_video_device(lc,devid);
3846 }
3847
3848 char linphone_core_get_sound_source(LinphoneCore *lc)
3849 {
3850         return lc->sound_conf.source;
3851 }
3852
3853 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3854 {
3855         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3856         lc->sound_conf.source=source;
3857         if (!sndcard) return;
3858         switch(source){
3859                 case 'm':
3860                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3861                         break;
3862                 case 'l':
3863                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3864                         break;
3865         }
3866
3867 }
3868
3869
3870 /**
3871  * Sets the path to a wav file used for ringing.
3872  *
3873  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3874  * @param lc The LinphoneCore object
3875  *
3876  * @ingroup media_parameters
3877 **/
3878 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3879         if (lc->sound_conf.local_ring!=0){
3880                 ms_free(lc->sound_conf.local_ring);
3881                 lc->sound_conf.local_ring=NULL;
3882         }
3883         if (path)
3884                 lc->sound_conf.local_ring=ms_strdup(path);
3885         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3886                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3887 }
3888
3889 /**
3890  * Returns the path to the wav file used for ringing.
3891  *
3892  * @param lc The LinphoneCore object
3893  * @ingroup media_parameters
3894 **/
3895 const char *linphone_core_get_ring(const LinphoneCore *lc){
3896         return lc->sound_conf.local_ring;
3897 }
3898
3899 /**
3900  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3901  *
3902  * @param path
3903  * @param lc The LinphoneCore object
3904  *
3905  * @ingroup initializing
3906 **/
3907 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3908         sal_set_root_ca(lc->sal, path);
3909 }
3910
3911 /**
3912  * Gets the path to a file or folder containing the trusted root CAs (PEM format)
3913  *
3914  * @param lc The LinphoneCore object
3915  *
3916  * @ingroup initializing
3917 **/
3918 const char *linphone_core_get_root_ca(LinphoneCore *lc){
3919         return sal_get_root_ca(lc->sal);
3920 }
3921
3922 /**
3923  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3924  *
3925  * @ingroup initializing
3926 **/
3927 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3928         sal_verify_server_certificates(lc->sal,yesno);
3929 }
3930
3931 /**
3932  * Specify whether the tls server certificate common name must be verified when connecting to a SIP/TLS server.
3933  * @ingroup initializing
3934 **/
3935 void linphone_core_verify_server_cn(LinphoneCore *lc, bool_t yesno){
3936         sal_verify_server_cn(lc->sal,yesno);
3937 }
3938
3939 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3940         LinphoneCore *lc=(LinphoneCore*)ud;
3941         lc->preview_finished=1;
3942 }
3943
3944 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3945 {
3946         if (lc->ringstream!=0){
3947                 ms_warning("Cannot start ring now,there's already a ring being played");
3948                 return -1;
3949         }
3950         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3951         lc->preview_finished=0;
3952         if (lc->sound_conf.ring_sndcard!=NULL){
3953                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3954                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3955         }
3956         return 0;
3957 }
3958
3959 /**
3960  * Sets the path to a wav file used for ringing back.
3961  *
3962  * Ringback means the ring that is heard when it's ringing at the remote party.
3963  * The file must be a wav 16bit linear.
3964  *
3965  * @ingroup media_parameters
3966 **/
3967 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3968         if (lc->sound_conf.remote_ring!=0){
3969                 ms_free(lc->sound_conf.remote_ring);
3970         }
3971         lc->sound_conf.remote_ring=ms_strdup(path);
3972 }
3973
3974 /**
3975  * Returns the path to the wav file used for ringing back.
3976  *
3977  * @ingroup media_parameters
3978 **/
3979 const char * linphone_core_get_ringback(const LinphoneCore *lc){
3980         return lc->sound_conf.remote_ring;
3981 }
3982
3983 /**
3984  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
3985  *
3986  * @ingroup media_parameters
3987 **/
3988 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
3989         lc->sound_conf.ec=val;
3990         if ( linphone_core_ready(lc))
3991                 lp_config_set_int(lc->config,"sound","echocancellation",val);
3992 }
3993
3994
3995 /**
3996  * Returns TRUE if echo cancellation is enabled.
3997  *
3998  * @ingroup media_parameters
3999 **/
4000 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
4001         return lc->sound_conf.ec;
4002 }
4003
4004 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
4005         lc->sound_conf.ea=val;
4006 }
4007
4008 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
4009         return lc->sound_conf.ea;
4010 }
4011
4012 /**
4013  * Mutes or unmutes the local microphone.
4014  *
4015  * @ingroup media_parameters
4016 **/
4017 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
4018         LinphoneCall *call=linphone_core_get_current_call(lc);
4019         AudioStream *st=NULL;
4020         if (linphone_core_is_in_conference(lc)){
4021                 lc->conf_ctx.local_muted=val;
4022                 st=lc->conf_ctx.local_participant;
4023         }else if (call==NULL){
4024                 ms_warning("linphone_core_mute_mic(): No current call !");
4025                 return;
4026         }else{
4027                 st=call->audiostream;
4028                 call->audio_muted=val;
4029         }
4030         if (st!=NULL){
4031                 audio_stream_set_mic_gain(st,
4032                         (val==TRUE) ? 0 : pow(10,lc->sound_conf.soft_mic_lev/10));
4033                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
4034                         audio_stream_mute_rtp(st,val);
4035                 }
4036
4037         }
4038 }
4039 /**
4040  * Returns whether microphone is muted.
4041 **/
4042 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
4043         LinphoneCall *call=linphone_core_get_current_call(lc);
4044         if (linphone_core_is_in_conference(lc)){
4045                 return lc->conf_ctx.local_muted;
4046         }else if (call==NULL){
4047                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4048                 return FALSE;
4049         }
4050         return call->audio_muted;
4051 }
4052
4053 // returns rtp transmission status for an active stream
4054 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
4055 // was set on then rtp transmission is also muted
4056 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
4057         LinphoneCall *call=linphone_core_get_current_call(lc);
4058         if (call==NULL){
4059                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4060                 return FALSE;
4061         }
4062         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
4063                 return call->audio_muted;
4064         }
4065         return FALSE;
4066 }
4067
4068 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
4069         lc->sound_conf.agc=val;
4070 }
4071
4072 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
4073         return lc->sound_conf.agc;
4074 }
4075
4076 /**
4077  * Send the specified dtmf.
4078  *
4079  * @ingroup media_parameters
4080  * This function only works during calls. The dtmf is automatically played to the user.
4081  * @param lc The LinphoneCore object
4082  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
4083  *
4084 **/
4085 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
4086 {
4087         LinphoneCall *call=linphone_core_get_current_call(lc);
4088         if (call==NULL){
4089                 ms_warning("linphone_core_send_dtmf(): no active call");
4090                 return;
4091         }
4092         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
4093         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
4094         {
4095                 /* In Band DTMF */
4096                 if (call->audiostream!=NULL){
4097                         audio_stream_send_dtmf(call->audiostream,dtmf);
4098                 }
4099                 else
4100                 {
4101                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
4102                 }
4103         }
4104         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
4105                 /* Out of Band DTMF (use INFO method) */
4106                 sal_call_send_dtmf(call->op,dtmf);
4107         }
4108 }
4109
4110 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
4111         if (lc->net_conf.stun_server!=NULL)
4112                 ms_free(lc->net_conf.stun_server);
4113         if (server)
4114                 lc->net_conf.stun_server=ms_strdup(server);
4115         else lc->net_conf.stun_server=NULL;
4116         if (linphone_core_ready(lc))
4117                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
4118 }
4119
4120 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
4121         return lc->net_conf.stun_server;
4122 }
4123
4124 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
4125         return lc->net_conf.relay;
4126 }
4127
4128 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
4129         if (lc->net_conf.relay!=NULL){
4130                 ms_free(lc->net_conf.relay);
4131                 lc->net_conf.relay=NULL;
4132         }
4133         if (addr){
4134                 lc->net_conf.relay=ms_strdup(addr);
4135         }
4136         return 0;
4137 }
4138
4139 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
4140 {
4141         if (lc->net_conf.nat_address!=NULL){
4142                 ms_free(lc->net_conf.nat_address);
4143         }
4144         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
4145         else lc->net_conf.nat_address=NULL;
4146         if (lc->sip_conf.contact) update_primary_contact(lc);
4147 }
4148
4149 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
4150         return lc->net_conf.nat_address;
4151 }
4152
4153 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
4154 {
4155         struct sockaddr_storage ss;
4156         socklen_t ss_len;
4157         int error;
4158         char ipstring [INET6_ADDRSTRLEN];
4159
4160         if (lc->net_conf.nat_address==NULL) return NULL;
4161
4162         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
4163                 return lc->net_conf.nat_address;
4164         }
4165
4166         error = getnameinfo((struct sockaddr *)&ss, ss_len,
4167                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
4168         if (error) {
4169                 return lc->net_conf.nat_address;
4170         }
4171
4172         if (lc->net_conf.nat_address_ip!=NULL){
4173                 ms_free(lc->net_conf.nat_address_ip);
4174         }
4175         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
4176         return lc->net_conf.nat_address_ip;
4177 }
4178
4179 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
4180         lc->net_conf.firewall_policy=pol;
4181         if (lc->sip_conf.contact) update_primary_contact(lc);
4182         if (linphone_core_ready(lc))
4183                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
4184 }
4185
4186 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
4187         return lc->net_conf.firewall_policy;
4188 }
4189
4190 /**
4191  * Get the list of call logs (past calls).
4192  *
4193  * @ingroup call_logs
4194 **/
4195 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
4196         return lc->call_logs;
4197 }
4198
4199 /**
4200  * Erase the call log.
4201  *
4202  * @ingroup call_logs
4203 **/
4204 void linphone_core_clear_call_logs(LinphoneCore *lc){
4205         lc->missed_calls=0;
4206         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4207         lc->call_logs=ms_list_free(lc->call_logs);
4208         call_logs_write_to_config_file(lc);
4209 }
4210
4211 /**
4212  * Returns number of missed calls.
4213  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
4214 **/
4215 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
4216         return lc->missed_calls;
4217 }
4218
4219 /**
4220  * Resets the counter of missed calls.
4221 **/
4222 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
4223         lc->missed_calls=0;
4224 }
4225
4226 /**
4227  * Remove a specific call log from call history list.
4228  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
4229  * @param lc the linphone core object
4230  * @param a LinphoneCallLog object.
4231 **/
4232 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
4233         lc->call_logs = ms_list_remove(lc->call_logs, cl);
4234         call_logs_write_to_config_file(lc);
4235         linphone_call_log_destroy(cl);
4236 }
4237
4238 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
4239 #ifdef VIDEO_ENABLED
4240         if (val){
4241                 if (lc->previewstream==NULL){
4242                         lc->previewstream=video_preview_new();
4243                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
4244                         if (lc->video_conf.displaytype)
4245                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
4246                         if (lc->preview_window_id!=0)
4247                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
4248                         video_preview_start(lc->previewstream,lc->video_conf.device);
4249                 }
4250         }else{
4251                 if (lc->previewstream!=NULL){
4252                         video_preview_stop(lc->previewstream);
4253                         lc->previewstream=NULL;
4254                 }
4255         }
4256 #endif
4257 }
4258
4259 /**
4260  * Enables video globally.
4261  *
4262  * @ingroup media_parameters
4263  * This function does not have any effect during calls. It just indicates LinphoneCore to
4264  * initiate future calls with video or not. The two boolean parameters indicate in which
4265  * direction video is enabled. Setting both to false disables video entirely.
4266  *
4267  * @param lc The LinphoneCore object
4268  * @param vcap_enabled indicates whether video capture is enabled
4269  * @param display_enabled indicates whether video display should be shown
4270  *
4271 **/
4272 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
4273 #ifndef VIDEO_ENABLED
4274         if (vcap_enabled || display_enabled)
4275                 ms_warning("This version of linphone was built without video support.");
4276 #endif
4277         lc->video_conf.capture=vcap_enabled;
4278         lc->video_conf.display=display_enabled;
4279         if (linphone_core_ready(lc)){
4280                 lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4281                 lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4282         }
4283         /* need to re-apply network bandwidth settings*/
4284         linphone_core_set_download_bandwidth(lc,
4285                 linphone_core_get_download_bandwidth(lc));
4286         linphone_core_set_upload_bandwidth(lc,
4287                 linphone_core_get_upload_bandwidth(lc));
4288 }
4289
4290 bool_t linphone_core_video_supported(LinphoneCore *lc){
4291 #ifdef VIDEO_ENABLED
4292         return TRUE;
4293 #else
4294         return FALSE;
4295 #endif
4296 }
4297
4298 /**
4299  * Returns TRUE if video is enabled, FALSE otherwise.
4300  * @ingroup media_parameters
4301 **/
4302 bool_t linphone_core_video_enabled(LinphoneCore *lc){
4303         return (lc->video_conf.display || lc->video_conf.capture);
4304 }
4305
4306 /**
4307  * Sets the default policy for video.
4308  * This policy defines whether:
4309  * - video shall be initiated by default for outgoing calls
4310  * - video shall be accepter by default for incoming calls
4311  * @ingroup media_parameters
4312 **/
4313 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
4314         lc->video_policy=*policy;
4315         if (linphone_core_ready(lc)){
4316                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
4317                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
4318         }
4319 }
4320
4321 /**
4322  * Get the default policy for video.
4323  * See linphone_core_set_video_policy() for more details.
4324  * @ingroup media_parameters
4325 **/
4326 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
4327         return &lc->video_policy;
4328 }
4329
4330 /**
4331  * Controls video preview enablement.
4332  *
4333  * @ingroup media_parameters
4334  * Video preview refers to the action of displaying the local webcam image
4335  * to the user while not in call.
4336 **/
4337 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
4338         lc->video_conf.show_local=val;
4339         if (linphone_core_ready(lc))
4340                 lp_config_set_int(lc->config,"video","show_local",val);
4341 }
4342
4343 /**
4344  * Returns TRUE if video previewing is enabled.
4345  * @ingroup media_parameters
4346 **/
4347 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
4348         return lc->video_conf.show_local;
4349 }
4350
4351 /**
4352  * Enables or disable self view during calls.
4353  *
4354  * @ingroup media_parameters
4355  * Self-view refers to having local webcam image inserted in corner
4356  * of the video window during calls.
4357  * This function works at any time, including during calls.
4358 **/
4359 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
4360 #ifdef VIDEO_ENABLED
4361         LinphoneCall *call=linphone_core_get_current_call (lc);
4362         lc->video_conf.selfview=val;
4363         if (call && call->videostream){
4364                 video_stream_enable_self_view(call->videostream,val);
4365         }
4366         if (linphone_core_ready(lc)){
4367                 lp_config_set_int(lc->config,"video","self_view",val);
4368         }
4369 #endif
4370 }
4371
4372 /**
4373  * Returns TRUE if self-view is enabled, FALSE otherwise.
4374  *
4375  * @ingroup media_parameters
4376  *
4377  * Refer to linphone_core_enable_self_view() for details.
4378 **/
4379 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
4380         return lc->video_conf.selfview;
4381 }
4382
4383 /**
4384  * Sets the active video device.
4385  *
4386  * @ingroup media_parameters
4387  * @param lc The LinphoneCore object
4388  * @param id the name of the video device as returned by linphone_core_get_video_devices()
4389 **/
4390 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
4391         MSWebCam *olddev=lc->video_conf.device;
4392         const char *vd;
4393         if (id!=NULL){
4394                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
4395                 if (lc->video_conf.device==NULL){
4396                         ms_warning("Could not find video device %s",id);
4397                 }
4398         }
4399         if (lc->video_conf.device==NULL)
4400                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
4401         if (olddev!=NULL && olddev!=lc->video_conf.device){
4402                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
4403         }
4404         if ( linphone_core_ready(lc) && lc->video_conf.device){
4405                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
4406                 if (vd && strstr(vd,"Static picture")!=NULL){
4407                         vd=NULL;
4408                 }
4409                 lp_config_set_string(lc->config,"video","device",vd);
4410         }
4411         return 0;
4412 }
4413
4414 /**
4415  * Returns the name of the currently active video device.
4416  *
4417  * @param lc The LinphoneCore object
4418  * @ingroup media_parameters
4419 **/
4420 const char *linphone_core_get_video_device(const LinphoneCore *lc){
4421         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
4422         return NULL;
4423 }
4424
4425 #ifdef VIDEO_ENABLED
4426 static VideoStream * get_active_video_stream(LinphoneCore *lc){
4427         VideoStream *vs = NULL;
4428         LinphoneCall *call=linphone_core_get_current_call (lc);
4429         /* Select the video stream from the call in the first place */
4430         if (call && call->videostream) {
4431                 vs = call->videostream;
4432         }
4433         /* If not in call, select the video stream from the preview */
4434         if (vs == NULL && lc->previewstream) {
4435                 vs = lc->previewstream;
4436         }
4437         return vs;
4438 }
4439 #endif
4440
4441 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
4442 #ifdef VIDEO_ENABLED
4443         VideoStream *vs=get_active_video_stream(lc);
4444         /* If we have a video stream (either preview, either from call), we
4445                  have a source and it is using the static picture filter, then
4446                  force the filter to use that picture. */
4447         if (vs && vs->source) {
4448                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4449                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4450                                                                                                                 (void *)path);
4451                 }
4452         }
4453         /* Tell the static image filter to use that image from now on so
4454                  that the image will be used next time it has to be read */
4455         ms_static_image_set_default_image(path);
4456 #else
4457         ms_warning("Video support not compiled.");
4458 #endif
4459         return 0;
4460 }
4461
4462 const char *linphone_core_get_static_picture(LinphoneCore *lc) {
4463         const char *path=NULL;
4464 #ifdef VIDEO_ENABLED
4465         path=ms_static_image_get_default_image();
4466 #else
4467         ms_warning("Video support not compiled.");
4468 #endif
4469         return path;
4470 }
4471
4472 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4473 #ifdef VIDEO_ENABLED
4474         VideoStream *vs = NULL;
4475
4476         vs=get_active_video_stream(lc);
4477
4478         /* If we have a video stream (either preview, either from call), we
4479                  have a source and it is using the static picture filter, then
4480                  force the filter to use that picture. */
4481         if (vs && vs->source) {
4482                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4483                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4484                 }
4485         }
4486 #else
4487         ms_warning("Video support not compiled.");
4488 #endif
4489         return 0;
4490 }
4491
4492 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4493 #ifdef VIDEO_ENABLED
4494         VideoStream *vs = NULL;
4495         vs=get_active_video_stream(lc);
4496         /* If we have a video stream (either preview, either from call), we
4497                  have a source and it is using the static picture filter, then
4498                  force the filter to use that picture. */
4499         if (vs && vs->source) {
4500                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4501
4502                         float fps;
4503
4504                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4505                         return fps;
4506                 }
4507         }
4508 #else
4509         ms_warning("Video support not compiled.");
4510 #endif
4511         return 0;
4512 }
4513
4514 /**
4515  * Returns the native window handle of the video window, casted as an unsigned long.
4516  *
4517  * @ingroup media_parameters
4518 **/
4519 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4520 #ifdef VIDEO_ENABLED
4521         LinphoneCall *call=linphone_core_get_current_call (lc);
4522         if (call && call->videostream)
4523                 return video_stream_get_native_window_id(call->videostream);
4524         if (lc->previewstream)
4525                 return video_stream_get_native_window_id(lc->previewstream);
4526 #endif
4527         return lc->video_window_id;
4528 }
4529
4530 /**@ingroup media_parameters
4531  * Set the native video window id where the video is to be displayed.
4532  * If not set the core will create its own window.
4533 **/
4534 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4535 #ifdef VIDEO_ENABLED
4536         LinphoneCall *call=linphone_core_get_current_call(lc);
4537         lc->video_window_id=id;
4538         if (call!=NULL && call->videostream){
4539                 video_stream_set_native_window_id(call->videostream,id);
4540         }
4541 #endif
4542 }
4543
4544 /**
4545  * Returns the native window handle of the video preview window, casted as an unsigned long.
4546  *
4547  * @ingroup media_parameters
4548 **/
4549 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4550 #ifdef VIDEO_ENABLED
4551         LinphoneCall *call=linphone_core_get_current_call (lc);
4552         if (call && call->videostream)
4553                 return video_stream_get_native_preview_window_id(call->videostream);
4554         if (lc->previewstream)
4555                 return video_preview_get_native_window_id(lc->previewstream);
4556 #endif
4557         return lc->preview_window_id;
4558 }
4559
4560 /**
4561  * @ingroup media_parameters
4562  * Set the native window id where the preview video (local camera) is to be displayed.
4563  * This has to be used in conjonction with linphone_core_use_preview_window().
4564  * If not set the core will create its own window.
4565 **/
4566 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4567         lc->preview_window_id=id;
4568 #ifdef VIDEO_ENABLED
4569         LinphoneCall *call=linphone_core_get_current_call(lc);
4570         if (call!=NULL && call->videostream){
4571                 video_stream_set_native_preview_window_id(call->videostream,id);
4572         }else if (lc->previewstream){
4573                 video_preview_set_native_window_id(lc->previewstream,id);
4574         }
4575 #endif
4576 }
4577
4578 /**
4579  * Can be used to disable video showing to free XV port
4580 **/
4581 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4582 #ifdef VIDEO_ENABLED
4583         ms_error("linphone_core_show_video %d", show);
4584         LinphoneCall *call=linphone_core_get_current_call(lc);
4585         if (call!=NULL && call->videostream){
4586                 video_stream_show_video(call->videostream,show);
4587         }
4588 #endif
4589 }
4590
4591 /**
4592  * Tells the core to use a separate window for local camera preview video, instead of
4593  * inserting local view within the remote video window.
4594  *
4595 **/
4596 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4597         lc->use_preview_window=yesno;
4598 }
4599 /**
4600  * @ingroup media_parameters
4601  *returns current device orientation
4602  */
4603 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4604         return lc->device_rotation;
4605 }
4606 /**
4607  * @ingroup media_parameters
4608  * Tells the core the device current orientation. This can be used by capture filters
4609  * on mobile devices to select between portrait/landscape mode and to produce properly
4610  * oriented images. The exact meaning of the value in rotation if left to each device
4611  * specific implementations.
4612  *@param lc  object.
4613  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4614  *
4615 **/
4616 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4617 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4618         lc->device_rotation = rotation;
4619 #ifdef VIDEO_ENABLED
4620         LinphoneCall *call=linphone_core_get_current_call(lc);
4621         if (call!=NULL && call->videostream){
4622                 video_stream_set_device_rotation(call->videostream,rotation);
4623         }
4624 #endif
4625 }
4626
4627 static MSVideoSizeDef supported_resolutions[]={
4628 #ifdef ENABLE_HD
4629         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4630         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4631 #endif
4632         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4633         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4634         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4635         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4636         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4637         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4638         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4639         {       {0,0}                   ,       NULL    }
4640 };
4641
4642 /**
4643  * Returns the zero terminated table of supported video resolutions.
4644  *
4645  * @ingroup media_parameters
4646 **/
4647 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4648         return supported_resolutions;
4649 }
4650
4651 static MSVideoSize video_size_get_by_name(const char *name){
4652         MSVideoSizeDef *pdef=supported_resolutions;
4653         MSVideoSize null_vsize={0,0};
4654         for(;pdef->name!=NULL;pdef++){
4655                 if (strcasecmp(name,pdef->name)==0){
4656                         return pdef->vsize;
4657                 }
4658         }
4659         ms_warning("Video resolution %s is not supported in linphone.",name);
4660         return null_vsize;
4661 }
4662
4663 static const char *video_size_get_name(MSVideoSize vsize){
4664         MSVideoSizeDef *pdef=supported_resolutions;
4665         for(;pdef->name!=NULL;pdef++){
4666                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4667                         return pdef->name;
4668                 }
4669         }
4670         return NULL;
4671 }
4672
4673 static bool_t video_size_supported(MSVideoSize vsize){
4674         if (video_size_get_name(vsize)) return TRUE;
4675         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4676         return FALSE;
4677 }
4678
4679 /**
4680  * Sets the preferred video size.
4681  *
4682  * @ingroup media_parameters
4683  * This applies only to the stream that is captured and sent to the remote party,
4684  * since we accept all standard video size on the receive path.
4685 **/
4686 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4687         if (video_size_supported(vsize)){
4688                 MSVideoSize oldvsize=lc->video_conf.vsize;
4689                 lc->video_conf.vsize=vsize;
4690                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4691                         toggle_video_preview(lc,FALSE);
4692                         toggle_video_preview(lc,TRUE);
4693                 }
4694                 if ( linphone_core_ready(lc))
4695                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4696         }
4697 }
4698
4699 /**
4700  * Sets the preferred video size by its name.
4701  *
4702  * @ingroup media_parameters
4703  * This is identical to linphone_core_set_preferred_video_size() except
4704  * that it takes the name of the video resolution as input.
4705  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4706 **/
4707 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4708         MSVideoSize vsize=video_size_get_by_name(name);
4709         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4710         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4711         else linphone_core_set_preferred_video_size(lc,default_vsize);
4712 }
4713
4714 /**
4715  * Returns the current preferred video size for sending.
4716  *
4717  * @ingroup media_parameters
4718 **/
4719 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4720         return lc->video_conf.vsize;
4721 }
4722
4723 /**
4724  * Ask the core to stream audio from and to files, instead of using the soundcard.
4725 **/
4726 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4727         lc->use_files=yesno;
4728 }
4729
4730 /**
4731  * Sets a wav file to be played when putting somebody on hold,
4732  * or when files are used instead of soundcards (see linphone_core_use_files()).
4733  *
4734  * The file must be a 16 bit linear wav file.
4735 **/
4736 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4737         LinphoneCall *call=linphone_core_get_current_call(lc);
4738         if (lc->play_file!=NULL){
4739                 ms_free(lc->play_file);
4740                 lc->play_file=NULL;
4741         }
4742         if (file!=NULL) {
4743                 lc->play_file=ms_strdup(file);
4744                 if (call && call->audiostream && call->audiostream->ms.ticker)
4745                         audio_stream_play(call->audiostream,file);
4746         }
4747 }
4748
4749
4750 /**
4751  * Sets a wav file where incoming stream is to be recorded,
4752  * when files are used instead of soundcards (see linphone_core_use_files()).
4753  *
4754  * This feature is different from call recording (linphone_call_params_set_record_file())
4755  * The file will be a 16 bit linear wav file.
4756 **/
4757 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4758         LinphoneCall *call=linphone_core_get_current_call(lc);
4759         if (lc->rec_file!=NULL){
4760                 ms_free(lc->rec_file);
4761                 lc->rec_file=NULL;
4762         }
4763         if (file!=NULL) {
4764                 lc->rec_file=ms_strdup(file);
4765                 if (call && call->audiostream)
4766                         audio_stream_record(call->audiostream,file);
4767         }
4768 }
4769
4770
4771 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4772         LinphoneCall *call=linphone_core_get_current_call (lc);
4773         AudioStream *stream=NULL;
4774         if (call){
4775                 stream=call->audiostream;
4776         }else if (linphone_core_is_in_conference(lc)){
4777                 stream=lc->conf_ctx.local_participant;
4778         }
4779         if (stream){
4780                 return stream->dtmfgen;
4781         }
4782         if (lc->ringstream==NULL){
4783                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4784                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4785                 if (ringcard == NULL)
4786                         return NULL;
4787
4788                 lc->ringstream=ring_start(NULL,0,ringcard);
4789                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4790                 lc->dmfs_playing_start_time=time(NULL);
4791         }else{
4792                 if (lc->dmfs_playing_start_time!=0)
4793                         lc->dmfs_playing_start_time=time(NULL);
4794         }
4795         return lc->ringstream->gendtmf;
4796 }
4797
4798 /**
4799  * @ingroup media_parameters
4800  * Plays a dtmf sound to the local user.
4801  * @param lc #LinphoneCore
4802  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4803  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4804 **/
4805 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4806         MSFilter *f=get_dtmf_gen(lc);
4807         if (f==NULL){
4808                 ms_error("No dtmf generator at this time !");
4809                 return;
4810         }
4811
4812         if (duration_ms>0)
4813                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4814         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4815 }
4816
4817 /**
4818  * @ingroup media_parameters
4819  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4820  * @param lc #LinphoneCore
4821 **/
4822 void linphone_core_play_tone(LinphoneCore *lc){
4823         MSFilter *f=get_dtmf_gen(lc);
4824         MSDtmfGenCustomTone def;
4825         if (f==NULL){
4826                 ms_error("No dtmf generator at this time !");
4827                 return;
4828         }
4829         def.duration=300;
4830         def.frequency=500;
4831         def.amplitude=1;
4832         def.interval=2000;
4833         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4834 }
4835
4836 /**
4837  * @ingroup media_parameters
4838  *
4839  * Stops playing a dtmf started by linphone_core_play_dtmf().
4840 **/
4841 void linphone_core_stop_dtmf(LinphoneCore *lc){
4842         MSFilter *f=get_dtmf_gen(lc);
4843         if (f!=NULL)
4844                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4845 }
4846
4847
4848
4849 /**
4850  * Retrieves the user pointer that was given to linphone_core_new()
4851  *
4852  * @ingroup initializing
4853 **/
4854 void *linphone_core_get_user_data(LinphoneCore *lc){
4855         return lc->data;
4856 }
4857
4858
4859 /**
4860  * Associate a user pointer to the linphone core.
4861  *
4862  * @ingroup initializing
4863 **/
4864 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4865         lc->data=userdata;
4866 }
4867
4868 int linphone_core_get_mtu(const LinphoneCore *lc){
4869         return lc->net_conf.mtu;
4870 }
4871
4872 /**
4873  * Sets the maximum transmission unit size in bytes.
4874  * This information is useful for sending RTP packets.
4875  * Default value is 1500.
4876  *
4877  * @ingroup media_parameters
4878 **/
4879 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4880         lc->net_conf.mtu=mtu;
4881         if (mtu>0){
4882                 if (mtu<500){
4883                         ms_error("MTU too small !");
4884                         mtu=500;
4885                 }
4886                 ms_set_mtu(mtu);
4887                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4888         }else ms_set_mtu(0);//use mediastreamer2 default value
4889 }
4890
4891 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4892         lc->wait_cb=cb;
4893         lc->wait_ctx=user_context;
4894 }
4895
4896 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4897         if (lc->wait_cb){
4898                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4899         }
4900 }
4901
4902 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4903         if (lc->wait_cb){
4904                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4905         }else{
4906 #ifdef WIN32
4907                 Sleep(50000);
4908 #else
4909                 usleep(50000);
4910 #endif
4911         }
4912 }
4913
4914 void linphone_core_stop_waiting(LinphoneCore *lc){
4915         if (lc->wait_cb){
4916                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4917         }
4918 }
4919
4920 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4921         lc->rtptf=factories;
4922 }
4923
4924 /**
4925  * Retrieve RTP statistics regarding current call.
4926  * @param local RTP statistics computed locally.
4927  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4928  *
4929  * @note Remote RTP statistics is not implemented yet.
4930  *
4931  * @returns 0 or -1 if no call is running.
4932 **/
4933
4934 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
4935         LinphoneCall *call=linphone_core_get_current_call (lc);
4936         if (call!=NULL){
4937                 if (call->audiostream!=NULL){
4938                         memset(remote,0,sizeof(*remote));
4939                         audio_stream_get_local_rtp_stats (call->audiostream,local);
4940                         return 0;
4941                 }
4942         }
4943         return -1;
4944 }
4945
4946 void net_config_uninit(LinphoneCore *lc)
4947 {
4948         net_config_t *config=&lc->net_conf;
4949
4950         if (config->stun_server!=NULL){
4951                 ms_free(lc->net_conf.stun_server);
4952         }
4953         if (config->nat_address!=NULL){
4954                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
4955                 ms_free(lc->net_conf.nat_address);
4956         }
4957         if (lc->net_conf.nat_address_ip !=NULL){
4958                 ms_free(lc->net_conf.nat_address_ip);
4959         }
4960         lp_config_set_int(lc->config,"net","mtu",config->mtu);
4961 }
4962
4963
4964 void sip_config_uninit(LinphoneCore *lc)
4965 {
4966         MSList *elem;
4967         int i;
4968         sip_config_t *config=&lc->sip_conf;
4969
4970         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
4971         lp_config_set_string(lc->config,"sip","contact",config->contact);
4972         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
4973         lp_config_set_int(lc->config,"sip","in_call_timeout",config->in_call_timeout);
4974         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
4975         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
4976         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
4977         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
4978
4979
4980
4981
4982         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
4983                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
4984                 linphone_proxy_config_edit(cfg);        /* to unregister */
4985         }
4986
4987         for (i=0;i<20;i++){
4988                 sal_iterate(lc->sal);
4989 #ifndef WIN32
4990                 usleep(100000);
4991 #else
4992                 Sleep(100);
4993 #endif
4994         }
4995
4996         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
4997         ms_list_free(config->proxies);
4998         config->proxies=NULL;
4999
5000         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
5001
5002         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
5003         ms_list_free(lc->auth_info);
5004         lc->auth_info=NULL;
5005
5006         sal_uninit(lc->sal);
5007         lc->sal=NULL;
5008
5009         if (lc->sip_conf.guessed_contact)
5010                 ms_free(lc->sip_conf.guessed_contact);
5011         if (config->contact)
5012                 ms_free(config->contact);
5013
5014 }
5015
5016 void rtp_config_uninit(LinphoneCore *lc)
5017 {
5018         rtp_config_t *config=&lc->rtp_conf;
5019         if (config->audio_rtp_min_port == config->audio_rtp_max_port) {
5020                 lp_config_set_int(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port);
5021         } else {
5022                 lp_config_set_range(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port, config->audio_rtp_max_port);
5023         }
5024         if (config->video_rtp_min_port == config->video_rtp_max_port) {
5025                 lp_config_set_int(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port);
5026         } else {
5027                 lp_config_set_range(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port, config->video_rtp_max_port);
5028         }
5029         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
5030         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
5031         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
5032         lp_config_set_int(lc->config,"rtp","audio_adaptive_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
5033         lp_config_set_int(lc->config,"rtp","video_adaptive_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
5034 }
5035
5036 static void sound_config_uninit(LinphoneCore *lc)
5037 {
5038         sound_config_t *config=&lc->sound_conf;
5039         ms_free(config->cards);
5040
5041         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
5042         lp_config_set_float(lc->config,"sound","playback_gain_db",config->soft_play_lev);
5043         lp_config_set_float(lc->config,"sound","mic_gain_db",config->soft_mic_lev);
5044
5045         if (config->local_ring) ms_free(config->local_ring);
5046         if (config->remote_ring) ms_free(config->remote_ring);
5047         ms_snd_card_manager_destroy();
5048 }
5049
5050 static void video_config_uninit(LinphoneCore *lc)
5051 {
5052         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
5053         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
5054         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
5055         if (lc->video_conf.cams)
5056                 ms_free(lc->video_conf.cams);
5057 }
5058
5059 void _linphone_core_codec_config_write(LinphoneCore *lc){
5060         if (linphone_core_ready(lc)){
5061                 PayloadType *pt;
5062                 codecs_config_t *config=&lc->codecs_conf;
5063                 MSList *node;
5064                 char key[50];
5065                 int index;
5066                 index=0;
5067                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
5068                         pt=(PayloadType*)(node->data);
5069                         sprintf(key,"audio_codec_%i",index);
5070                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5071                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5072                         lp_config_set_int(lc->config,key,"channels",pt->channels);
5073                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5074                         index++;
5075                 }
5076                 sprintf(key,"audio_codec_%i",index);
5077                 lp_config_clean_section (lc->config,key);
5078
5079                 index=0;
5080                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
5081                         pt=(PayloadType*)(node->data);
5082                         sprintf(key,"video_codec_%i",index);
5083                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5084                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5085                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5086                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
5087                         index++;
5088                 }
5089                 sprintf(key,"video_codec_%i",index);
5090                 lp_config_clean_section (lc->config,key);
5091         }
5092 }
5093
5094 static void codecs_config_uninit(LinphoneCore *lc)
5095 {
5096         _linphone_core_codec_config_write(lc);
5097         ms_list_free(lc->codecs_conf.audio_codecs);
5098         ms_list_free(lc->codecs_conf.video_codecs);
5099 }
5100
5101 void ui_config_uninit(LinphoneCore* lc)
5102 {
5103         if (lc->friends){
5104                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
5105                 ms_list_free(lc->friends);
5106                 lc->friends=NULL;
5107         }
5108 }
5109
5110 /**
5111  * Returns the LpConfig object used to manage the storage (config) file.
5112  *
5113  * @ingroup misc
5114  * The application can use the LpConfig object to insert its own private
5115  * sections and pairs of key=value in the configuration file.
5116  *
5117 **/
5118 LpConfig *linphone_core_get_config(LinphoneCore *lc){
5119         return lc->config;
5120 }
5121
5122 static void linphone_core_uninit(LinphoneCore *lc)
5123 {
5124         linphone_core_free_hooks(lc);
5125         while(lc->calls)
5126         {
5127                 LinphoneCall *the_call = lc->calls->data;
5128                 linphone_core_terminate_call(lc,the_call);
5129                 linphone_core_iterate(lc);
5130 #ifdef WIN32
5131                 Sleep(50000);
5132 #else
5133                 usleep(50000);
5134 #endif
5135         }
5136
5137 #ifdef BUILD_UPNP
5138         linphone_upnp_context_destroy(lc->upnp);
5139         lc->upnp = NULL;
5140 #endif  //BUILD_UPNP
5141
5142         if (lc->friends)
5143                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
5144         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
5145 #ifdef VIDEO_ENABLED
5146         if (lc->previewstream!=NULL){
5147                 video_preview_stop(lc->previewstream);
5148                 lc->previewstream=NULL;
5149         }
5150 #endif
5151         ms_event_queue_destroy(lc->msevq);
5152         lc->msevq=NULL;
5153         /* save all config */
5154         net_config_uninit(lc);
5155         rtp_config_uninit(lc);
5156         if (lc->ringstream) ring_stop(lc->ringstream);
5157         sound_config_uninit(lc);
5158         video_config_uninit(lc);
5159         codecs_config_uninit(lc);
5160         ui_config_uninit(lc);
5161         sip_config_uninit(lc);
5162         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
5163         lp_config_destroy(lc->config);
5164         lc->config = NULL; /* Mark the config as NULL to block further calls */
5165         sip_setup_unregister_all();
5166
5167         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
5168         lc->call_logs=ms_list_free(lc->call_logs);
5169
5170         ms_list_for_each(lc->last_recv_msg_ids,ms_free);
5171         lc->last_recv_msg_ids=ms_list_free(lc->last_recv_msg_ids);
5172
5173         linphone_core_free_payload_types(lc);
5174         ortp_exit();
5175         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
5176 #ifdef TUNNEL_ENABLED
5177         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
5178 #endif
5179 }
5180
5181 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
5182         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
5183         // second get the list of available proxies
5184         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5185         for(;elem!=NULL;elem=elem->next){
5186                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5187                 if (linphone_proxy_config_register_enabled(cfg) ) {
5188                         if (!isReachable) {
5189                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
5190                         }else{
5191                                 cfg->commit=TRUE;
5192                         }
5193                 }
5194         }
5195         lc->netup_time=curtime;
5196         lc->network_reachable=isReachable;
5197         if(!isReachable) {
5198                 sal_reset_transports(lc->sal);
5199         }
5200 }
5201
5202 void linphone_core_refresh_registers(LinphoneCore* lc) {
5203         const MSList *elem;
5204         if (!lc->network_reachable) {
5205                 ms_warning("Refresh register operation not available (network unreachable)");
5206                 return;
5207         }
5208         elem=linphone_core_get_proxy_config_list(lc);
5209         for(;elem!=NULL;elem=elem->next){
5210                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5211                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
5212                         linphone_proxy_config_refresh_register(cfg);
5213                 }
5214         }
5215 }
5216
5217 void __linphone_core_invalidate_registers(LinphoneCore* lc){
5218         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5219         for(;elem!=NULL;elem=elem->next){
5220                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5221                 if (linphone_proxy_config_register_enabled(cfg)) {
5222                         linphone_proxy_config_edit(cfg);
5223                         linphone_proxy_config_done(cfg);
5224                 }
5225         }
5226 }
5227
5228 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
5229         //first disable automatic mode
5230         if (lc->auto_net_state_mon) {
5231                 ms_message("Disabling automatic network state monitoring");
5232                 lc->auto_net_state_mon=FALSE;
5233         }
5234         set_network_reachable(lc,isReachable, ms_time(NULL));
5235 }
5236
5237 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
5238         return lc->network_reachable;
5239 }
5240 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
5241         return sal_get_socket(lc->sal);
5242 }
5243 /**
5244  * Destroys a LinphoneCore
5245  *
5246  * @ingroup initializing
5247 **/
5248 void linphone_core_destroy(LinphoneCore *lc){
5249         linphone_core_uninit(lc);
5250         ms_free(lc);
5251 }
5252 /**
5253  * Get the number of Call
5254  *
5255  * @ingroup call_control
5256 **/
5257 int linphone_core_get_calls_nb(const LinphoneCore *lc){
5258         return  ms_list_size(lc->calls);;
5259 }
5260
5261 /**
5262  * Check if we do not have exceed the number of simultaneous call
5263  *
5264  * @ingroup call_control
5265 **/
5266 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
5267 {
5268         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
5269                 return TRUE;
5270         ms_message("Maximum amount of simultaneous calls reached !");
5271         return FALSE;
5272 }
5273
5274
5275 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
5276 {
5277         if(linphone_core_can_we_add_call(lc))
5278         {
5279                 lc->calls = ms_list_append(lc->calls,call);
5280                 return 0;
5281         }
5282         return -1;
5283 }
5284
5285 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
5286 {
5287         MSList *it;
5288         MSList *the_calls = lc->calls;
5289
5290         it=ms_list_find(the_calls,call);
5291         if (it)
5292         {
5293                 the_calls = ms_list_remove_link(the_calls,it);
5294         }
5295         else
5296         {
5297                 ms_warning("could not find the call into the list\n");
5298                 return -1;
5299         }
5300         lc->calls = the_calls;
5301         return 0;
5302 }
5303
5304 /**
5305  * Specifiies a ring back tone to be played to far end during incoming calls.
5306 **/
5307 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
5308         if (lc->sound_conf.ringback_tone){
5309                 ms_free(lc->sound_conf.ringback_tone);
5310                 lc->sound_conf.ringback_tone=NULL;
5311         }
5312         if (file)
5313                 lc->sound_conf.ringback_tone=ms_strdup(file);
5314 }
5315
5316 /**
5317  * Returns the ring back tone played to far end during incoming calls.
5318 **/
5319 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
5320         return lc->sound_conf.ringback_tone;
5321 }
5322
5323 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
5324         const MSList *elem;
5325         for(elem=from;elem!=NULL;elem=elem->next){
5326                 PayloadType *pt=(PayloadType*)elem->data;
5327                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
5328                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
5329                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
5330                         return pt;
5331                 }
5332         }
5333         return NULL;
5334 }
5335
5336
5337 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
5338         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
5339         if (result)  {
5340                 return result;
5341         } else {
5342                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
5343                 if (result) {
5344                         return result;
5345                 }
5346         }
5347         /*not found*/
5348         return NULL;
5349 }
5350
5351 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
5352         switch(gs){
5353                 case LinphoneGlobalOff:
5354                         return "LinphoneGlobalOff";
5355                 break;
5356                 case LinphoneGlobalOn:
5357                         return "LinphoneGlobalOn";
5358                 break;
5359                 case LinphoneGlobalStartup:
5360                         return "LinphoneGlobalStartup";
5361                 break;
5362                 case LinphoneGlobalShutdown:
5363                         return "LinphoneGlobalShutdown";
5364                 break;
5365         }
5366         return NULL;
5367 }
5368
5369 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
5370         return lc->state;
5371 }
5372
5373 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
5374         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
5375         linphone_core_init_default_params(lc, p);
5376         return p;
5377 }
5378
5379 const char *linphone_reason_to_string(LinphoneReason err){
5380         switch(err){
5381                 case LinphoneReasonNone:
5382                         return "No error";
5383                 case LinphoneReasonNoResponse:
5384                         return "No response";
5385                 case LinphoneReasonBadCredentials:
5386                         return "Bad credentials";
5387                 case LinphoneReasonDeclined:
5388                         return "Call declined";
5389                 case LinphoneReasonNotFound:
5390                         return "User not found";
5391                 case LinphoneReasonNotAnswered:
5392                         return "Not answered";
5393                 case LinphoneReasonBusy:
5394                         return "Busy";
5395         }
5396         return "unknown error";
5397 }
5398
5399 const char *linphone_error_to_string(LinphoneReason err){
5400         return linphone_reason_to_string(err);
5401 }
5402 /**
5403  * Enables signaling keep alive
5404  */
5405 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
5406         if (enable > 0) {
5407                 sal_use_tcp_tls_keepalive(lc->sal,lc->sip_conf.tcp_tls_keepalive);
5408                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
5409         } else {
5410                 sal_set_keepalive_period(lc->sal,0);
5411         }
5412 }
5413 /**
5414  * Is signaling keep alive enabled
5415  */
5416 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
5417         return sal_get_keepalive_period(lc->sal) > 0;
5418 }
5419
5420 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
5421         get_dtmf_gen(lc); /*make sure ring stream is started*/
5422         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
5423 }
5424
5425 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
5426         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
5427                 ring_stop(lc->ringstream);
5428                 lc->ringstream=NULL;
5429         }
5430 }
5431
5432 int linphone_core_get_max_calls(LinphoneCore *lc) {
5433         return lc->max_calls;
5434 }
5435 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
5436         lc->max_calls=max;
5437 }
5438
5439 typedef struct Hook{
5440         LinphoneCoreIterateHook fun;
5441         void *data;
5442 }Hook;
5443
5444 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
5445         Hook *h=ms_new(Hook,1);
5446         h->fun=hook;
5447         h->data=hook_data;
5448         return h;
5449 }
5450
5451 static void hook_invoke(Hook *h){
5452         h->fun(h->data);
5453 }
5454
5455 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5456         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
5457 }
5458
5459 static void linphone_core_run_hooks(LinphoneCore *lc){
5460         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
5461 }
5462
5463 static void linphone_core_free_hooks(LinphoneCore *lc){
5464         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
5465         ms_list_free(lc->hooks);
5466         lc->hooks=NULL;
5467 }
5468
5469 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5470         MSList *elem;
5471         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
5472                 Hook *h=(Hook*)elem->data;
5473                 if (h->fun==hook && h->data==hook_data){
5474                         ms_list_remove_link(lc->hooks,elem);
5475                         ms_free(h);
5476                         return;
5477                 }
5478         }
5479         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
5480 }
5481
5482 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
5483         if (lc->zrtp_secrets_cache != NULL) {
5484                 ms_free(lc->zrtp_secrets_cache);
5485         }
5486         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
5487 }
5488
5489 const char *linphone_core_get_zrtp_secrets_file(LinphoneCore *lc){
5490         return lc->zrtp_secrets_cache;
5491 }
5492
5493 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
5494         if (uri == NULL) return NULL;
5495         MSList *calls=lc->calls;
5496         while(calls) {
5497                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5498                 calls=calls->next;
5499                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5500                 char *current_uri=linphone_address_as_string_uri_only(address);
5501                 if (strcmp(uri,current_uri)==0) {
5502                         ms_free(current_uri);
5503                         return c;
5504                 } else {
5505                         ms_free(current_uri);
5506                 }
5507         }
5508         return NULL;
5509 }
5510
5511
5512 /**
5513  * Check if a call will need the sound resources.
5514  *
5515  * @ingroup call_control
5516  * @param lc The LinphoneCore
5517 **/
5518 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5519         MSList *calls=lc->calls;
5520         while(calls) {
5521                 LinphoneCall *c=(LinphoneCall*)calls->data;
5522                 calls=calls->next;
5523                 switch (c->state) {
5524                         case LinphoneCallOutgoingInit:
5525                         case LinphoneCallOutgoingProgress:
5526                         case LinphoneCallOutgoingRinging:
5527                         case LinphoneCallOutgoingEarlyMedia:
5528                         case LinphoneCallConnected:
5529                         case LinphoneCallRefered:
5530                         case LinphoneCallIncomingEarlyMedia:
5531                         case LinphoneCallUpdating:
5532                                 return TRUE;
5533                         default:
5534                                 break;
5535                 }
5536         }
5537         return FALSE;
5538 }
5539
5540 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5541         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5542 }
5543
5544 /**
5545  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5546 **/
5547 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5548         switch(menc){
5549                 case LinphoneMediaEncryptionSRTP:
5550                         return ortp_srtp_supported();
5551                 case LinphoneMediaEncryptionZRTP:
5552                         return ortp_zrtp_available();
5553                 case LinphoneMediaEncryptionNone:
5554                         return TRUE;
5555         }
5556         return FALSE;
5557 }
5558
5559 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5560         const char *type="none";
5561         int ret=0;
5562         if (menc == LinphoneMediaEncryptionSRTP){
5563                 if (!ortp_srtp_supported()){
5564                         ms_warning("SRTP not supported by library.");
5565                         type="none";
5566                         ret=-1;
5567                 }else type="srtp";
5568         }else if (menc == LinphoneMediaEncryptionZRTP){
5569                 if (!ortp_zrtp_available()){
5570                         ms_warning("ZRTP not supported by library.");
5571                         type="none";
5572                         ret=-1;
5573                 }else type="zrtp";
5574         }
5575         lp_config_set_string(lc->config,"sip","media_encryption",type);
5576         return ret;
5577 }
5578
5579 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5580         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5581
5582         if (menc == NULL)
5583                 return LinphoneMediaEncryptionNone;
5584         else if (strcmp(menc, "srtp")==0)
5585                 return LinphoneMediaEncryptionSRTP;
5586         else if (strcmp(menc, "zrtp")==0)
5587                 return LinphoneMediaEncryptionZRTP;
5588         else
5589                 return LinphoneMediaEncryptionNone;
5590 }
5591
5592 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5593         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5594 }
5595
5596 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5597         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5598 }
5599
5600 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5601         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5602         params->media_encryption=linphone_core_get_media_encryption(lc);
5603         params->in_conference=FALSE;
5604 }
5605
5606 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5607         if (lc->device_id) ms_free(lc->device_id);
5608         lc->device_id=ms_strdup(device_id);
5609 }
5610 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5611         return lc->device_id;
5612 }
5613
5614 /**
5615  * Set the DSCP field for SIP signaling channel.
5616  *
5617  * @ingroup network_parameters
5618  * * The DSCP defines the quality of service in IP packets.
5619  *
5620 **/
5621 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5622         sal_set_dscp(lc->sal,dscp);
5623         if (linphone_core_ready(lc)){
5624                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5625                 apply_transports(lc);
5626         }
5627 }
5628
5629 /**
5630  * Get the DSCP field for SIP signaling channel.
5631  *
5632  * @ingroup network_parameters
5633  * * The DSCP defines the quality of service in IP packets.
5634  *
5635 **/
5636 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5637         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5638 }
5639
5640 /**
5641  * Set the DSCP field for outgoing audio streams.
5642  *
5643  * @ingroup network_parameters
5644  * The DSCP defines the quality of service in IP packets.
5645  *
5646 **/
5647 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5648         if (linphone_core_ready(lc))
5649                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5650 }
5651
5652 /**
5653  * Get the DSCP field for outgoing audio streams.
5654  *
5655  * @ingroup network_parameters
5656  * The DSCP defines the quality of service in IP packets.
5657  *
5658 **/
5659 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5660         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5661 }
5662
5663 /**
5664  * Set the DSCP field for outgoing video streams.
5665  *
5666  * @ingroup network_parameters
5667  * The DSCP defines the quality of service in IP packets.
5668  *
5669 **/
5670 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5671         if (linphone_core_ready(lc))
5672                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5673
5674 }
5675
5676 /**
5677  * Get the DSCP field for outgoing video streams.
5678  *
5679  * @ingroup network_parameters
5680  * The DSCP defines the quality of service in IP packets.
5681  *
5682 **/
5683 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5684         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5685 }