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

   1 /*
   2 linphone
   3 Copyright (C) 2000  Simon MORLAT (simon.morlat@linphone.org)
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19
  20 #define _GNU_SOURCE
  21
  22 #include "linphonecore.h"
  23 #include "sipsetup.h"
  24 #include "lpconfig.h"
  25 #include "private.h"
  26
  27 #include <math.h>
  28 #include <ortp/telephonyevents.h>
  29 #include <ortp/zrtp.h>
  30 #include "mediastreamer2/mediastream.h"
  31 #include "mediastreamer2/mseventqueue.h"
  32 #include "mediastreamer2/msvolume.h"
  33 #include "mediastreamer2/msequalizer.h"
  34 #include "mediastreamer2/dtmfgen.h"
  35
  36 #ifdef INET6
  37 #ifndef WIN32
  38 #include <netdb.h>
  39 #endif
  40 #endif
  41
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #include "liblinphone_gitversion.h"
  45 #else
  46 #ifndef LIBLINPHONE_GIT_VERSION
  47 #define LIBLINPHONE_GIT_VERSION "unknown"
  48 #endif
  49 #endif
  50
  51
  52 /*#define UNSTANDART_GSM_11K 1*/
  53
  54 #define ROOT_CA_FILE PACKAGE_DATA_DIR "/linphone/rootca.pem"
  55
  56 static const char *liblinphone_version=
  57 #ifdef LIBLINPHONE_GIT_VERSION
  58         LIBLINPHONE_GIT_VERSION
  59 #else
  60         LIBLINPHONE_VERSION
  61 #endif
  62 ;
  63 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
  64 static void linphone_core_run_hooks(LinphoneCore *lc);
  65 static void linphone_core_free_hooks(LinphoneCore *lc);
  66
  67 #include "enum.h"
  68
  69 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
  70 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
  71
  72 /* relative path where is stored local ring*/
  73 #define LOCAL_RING "rings/oldphone.wav"
  74 /* same for remote ring (ringback)*/
  75 #define REMOTE_RING "ringback.wav"
  76 #define HOLD_MUSIC "rings/toy-mono.wav"
  77
  78
  79 extern SalCallbacks linphone_sal_callbacks;
  80
  81 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
  82 {
  83   obj->_func=func;
  84   obj->_user_data=ud;
  85 }
  86
  87 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
  88         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
  89         return 0;
  90 }
  91
  92
  93 /*prevent a gcc bug with %c*/
  94 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
  95 #if !defined(_WIN32_WCE)
  96         return strftime(s, max, fmt, tm);
  97 #else
  98         return 0;
  99         /*FIXME*/
 100 #endif /*_WIN32_WCE*/
 101 }
 102
 103 static void set_call_log_date(LinphoneCallLog *cl, time_t start_time){
 104         struct tm loctime;
 105 #ifdef WIN32
 106 #if !defined(_WIN32_WCE)
 107         loctime=*localtime(&start_time);
 108         /*FIXME*/
 109 #endif /*_WIN32_WCE*/
 110 #else
 111         localtime_r(&start_time,&loctime);
 112 #endif
 113         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",&loctime);
 114 }
 115
 116 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 117         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 118         cl->dir=call->dir;
 119         cl->start_date_time=call->start_time;
 120         set_call_log_date(cl,cl->start_date_time);
 121         cl->from=from;
 122         cl->to=to;
 123     cl->status=LinphoneCallAborted; /*default status*/
 124         return cl;
 125 }
 126
 127 void call_logs_write_to_config_file(LinphoneCore *lc){
 128         MSList *elem;
 129         char logsection[32];
 130         int i;
 131         char *tmp;
 132         LpConfig *cfg=lc->config;
 133
 134         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
 135
 136         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
 137                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
 138                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 139                 lp_config_clean_section(cfg,logsection);
 140                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
 141                 lp_config_set_int(cfg,logsection,"status",cl->status);
 142                 tmp=linphone_address_as_string(cl->from);
 143                 lp_config_set_string(cfg,logsection,"from",tmp);
 144                 ms_free(tmp);
 145                 tmp=linphone_address_as_string(cl->to);
 146                 lp_config_set_string(cfg,logsection,"to",tmp);
 147                 ms_free(tmp);
 148                 if (cl->start_date_time)
 149                         lp_config_set_int64(cfg,logsection,"start_date_time",(int64_t)cl->start_date_time);
 150                 else lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
 151                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
 152                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
 153                 lp_config_set_float(cfg,logsection,"quality",cl->quality);
 154                 lp_config_set_int(cfg,logsection,"video_enabled", cl->video_enabled);
 155                 lp_config_set_string(cfg,logsection,"call_id",cl->call_id);
 156         }
 157         for(;i<lc->max_call_logs;++i){
 158                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 159                 lp_config_clean_section(cfg,logsection);
 160         }
 161 }
 162
 163 static time_t string_to_time(const char *date){
 164 #ifndef WIN32
 165         struct tm tmtime={0};
 166         strptime(date,"%c",&tmtime);
 167         return mktime(&tmtime);
 168 #else
 169         return 0;
 170 #endif
 171 }
 172
 173 static void call_logs_read_from_config_file(LinphoneCore *lc){
 174         char logsection[32];
 175         int i;
 176         const char *tmp;
 177         uint64_t sec;
 178         LpConfig *cfg=lc->config;
 179         for(i=0;;++i){
 180                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 181                 if (lp_config_has_section(cfg,logsection)){
 182                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 183                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
 184                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
 185                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
 186                         if (tmp) cl->from=linphone_address_new(tmp);
 187                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
 188                         if (tmp) cl->to=linphone_address_new(tmp);
 189                         sec=lp_config_get_int64(cfg,logsection,"start_date_time",0);
 190                         if (sec) {
 191                                 /*new call log format with date expressed in seconds */
 192                                 cl->start_date_time=(time_t)sec;
 193                                 set_call_log_date(cl,cl->start_date_time);
 194                         }else{
 195                                 tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
 196                                 if (tmp) {
 197                                         strncpy(cl->start_date,tmp,sizeof(cl->start_date));
 198                                         cl->start_date_time=string_to_time(cl->start_date);
 199                                 }
 200                         }
 201                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
 202                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
 203                         if (tmp) cl->refkey=ms_strdup(tmp);
 204                         cl->quality=lp_config_get_float(cfg,logsection,"quality",-1);
 205                         cl->video_enabled=lp_config_get_int(cfg,logsection,"video_enabled",0);
 206                         tmp=lp_config_get_string(cfg,logsection,"call_id",NULL);
 207                         if (tmp) cl->call_id=ms_strdup(tmp);
 208                         lc->call_logs=ms_list_append(lc->call_logs,cl);
 209                 }else break;
 210         }
 211 }
 212
 213
 214
 215 /**
 216  * @addtogroup call_logs
 217  * @{
 218 **/
 219
 220 /**
 221  * Returns a human readable string describing the call.
 222  *
 223  * @note: the returned char* must be freed by the application (use ms_free()).
 224 **/
 225 char * linphone_call_log_to_str(LinphoneCallLog *cl){
 226         char *status;
 227         char *tmp;
 228         char *from=linphone_address_as_string (cl->from);
 229         char *to=linphone_address_as_string (cl->to);
 230         switch(cl->status){
 231                 case LinphoneCallAborted:
 232                         status=_("aborted");
 233                         break;
 234                 case LinphoneCallSuccess:
 235                         status=_("completed");
 236                         break;
 237                 case LinphoneCallMissed:
 238                         status=_("missed");
 239                         break;
 240                 default:
 241                         status="unknown";
 242         }
 243         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
 244                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
 245                         cl->start_date,
 246                         from,
 247                         to,
 248                         status,
 249                         cl->duration/60,
 250                         cl->duration%60);
 251         ms_free(from);
 252         ms_free(to);
 253         return tmp;
 254 }
 255
 256 /**
 257  * Returns RTP statistics computed locally regarding the call.
 258  *
 259 **/
 260 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
 261         return &cl->local_stats;
 262 }
 263
 264 /**
 265  * Returns RTP statistics computed by remote end and sent back via RTCP.
 266  *
 267  * @note Not implemented yet.
 268 **/
 269 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
 270         return &cl->remote_stats;
 271 }
 272
 273 const char *linphone_call_log_get_call_id(const LinphoneCallLog *cl){
 274         return cl->call_id;
 275 }
 276
 277 /**
 278  * Assign a user pointer to the call log.
 279 **/
 280 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
 281         cl->user_pointer=up;
 282 }
 283
 284 /**
 285  * Returns the user pointer associated with the call log.
 286 **/
 287 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
 288         return cl->user_pointer;
 289 }
 290
 291
 292
 293 /**
 294  * Associate a persistent reference key to the call log.
 295  *
 296  * The reference key can be for example an id to an external database.
 297  * It is stored in the config file, thus can survive to process exits/restarts.
 298  *
 299 **/
 300 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
 301         if (cl->refkey!=NULL){
 302                 ms_free(cl->refkey);
 303                 cl->refkey=NULL;
 304         }
 305         if (refkey) cl->refkey=ms_strdup(refkey);
 306 }
 307
 308 /**
 309  * Get the persistent reference key associated to the call log.
 310  *
 311  * The reference key can be for example an id to an external database.
 312  * It is stored in the config file, thus can survive to process exits/restarts.
 313  *
 314 **/
 315 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
 316         return cl->refkey;
 317 }
 318
 319 /**
 320  * Returns origin (ie from) address of the call.
 321 **/
 322 LinphoneAddress *linphone_call_log_get_from(LinphoneCallLog *cl){
 323         return cl->from;
 324 }
 325
 326 /**
 327  * Returns destination address (ie to) of the call.
 328 **/
 329 LinphoneAddress *linphone_call_log_get_to(LinphoneCallLog *cl){
 330         return cl->to;
 331 }
 332
 333 /**
 334  * Returns remote address (that is from or to depending on call direction).
 335 **/
 336 LinphoneAddress *linphone_call_log_get_remote_address(LinphoneCallLog *cl){
 337         return (cl->dir == LinphoneCallIncoming) ? cl->from : cl->to;
 338 }
 339
 340 /**
 341  * Returns the direction of the call.
 342 **/
 343 LinphoneCallDir linphone_call_log_get_dir(LinphoneCallLog *cl){
 344         return cl->dir;
 345 }
 346
 347 /**
 348  * Returns the status of the call.
 349 **/
 350 LinphoneCallStatus linphone_call_log_get_status(LinphoneCallLog *cl){
 351         return cl->status;
 352 }
 353
 354 /**
 355  * Returns the start date of the call, expressed as a POSIX time_t.
 356 **/
 357 time_t linphone_call_log_get_start_date(LinphoneCallLog *cl){
 358         return cl->start_date_time;
 359 }
 360
 361 /**
 362  * Returns duration of the call.
 363 **/
 364 int linphone_call_log_get_duration(LinphoneCallLog *cl){
 365         return cl->duration;
 366 }
 367
 368 /**
 369  * Returns overall quality indication of the call.
 370 **/
 371 float linphone_call_log_get_quality(LinphoneCallLog *cl){
 372         return cl->quality;
 373 }
 374
 375 /** @} */
 376
 377 void linphone_call_log_destroy(LinphoneCallLog *cl){
 378         if (cl->from!=NULL) linphone_address_destroy(cl->from);
 379         if (cl->to!=NULL) linphone_address_destroy(cl->to);
 380         if (cl->refkey!=NULL) ms_free(cl->refkey);
 381         if (cl->call_id) ms_free(cl->call_id);
 382         ms_free(cl);
 383 }
 384
 385 /**
 386  * Returns TRUE if the LinphoneCall asked to autoanswer
 387  *
 388 **/
 389 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
 390         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
 391         if(call)
 392                 return sal_call_autoanswer_asked(call->op);
 393         else
 394                 return FALSE;
 395 }
 396
 397 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
 398         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
 399         if (call)  return linphone_call_get_duration(call);
 400         return -1;
 401 }
 402
 403 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
 404         LinphoneCall *call=linphone_core_get_current_call(lc);
 405         if (call==NULL) return NULL;
 406         return linphone_call_get_remote_address(call);
 407 }
 408
 409 /**
 410  * Enable logs in supplied FILE*.
 411  *
 412  * @ingroup misc
 413  *
 414  * @param file a C FILE* where to fprintf logs. If null stdout is used.
 415  *
 416 **/
 417 void linphone_core_enable_logs(FILE *file){
 418         if (file==NULL) file=stdout;
 419         ortp_set_log_file(file);
 420         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 421 }
 422
 423 /**
 424  * Enable logs through the user's supplied log callback.
 425  *
 426  * @ingroup misc
 427  *
 428  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
 429  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
 430  *
 431 **/
 432 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
 433         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 434         ortp_set_log_handler(logfunc);
 435 }
 436
 437 /**
 438  * Entirely disable logging.
 439  *
 440  * @ingroup misc
 441 **/
 442 void linphone_core_disable_logs(){
 443         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
 444 }
 445
 446
 447 static void net_config_read (LinphoneCore *lc)
 448 {
 449         int tmp;
 450         const char *tmpstr;
 451         LpConfig *config=lc->config;
 452
 453         lc->net_conf.nat_address_ip = NULL;
 454         tmp=lp_config_get_int(config,"net","download_bw",0);
 455         linphone_core_set_download_bandwidth(lc,tmp);
 456         tmp=lp_config_get_int(config,"net","upload_bw",0);
 457         linphone_core_set_upload_bandwidth(lc,tmp);
 458         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
 459         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
 460         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
 461         linphone_core_set_nat_address(lc,tmpstr);
 462         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
 463         linphone_core_set_firewall_policy(lc,tmp);
 464         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
 465         lc->net_conf.nat_sdp_only=tmp;
 466         tmp=lp_config_get_int(lc->config,"net","mtu",0);
 467         linphone_core_set_mtu(lc,tmp);
 468         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 469         linphone_core_set_download_ptime(lc,tmp);
 470
 471 }
 472
 473 static void build_sound_devices_table(LinphoneCore *lc){
 474         const char **devices;
 475         const char **old;
 476         int ndev;
 477         int i;
 478         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
 479         ndev=ms_list_size(elem);
 480         devices=ms_malloc((ndev+1)*sizeof(const char *));
 481         for (i=0;elem!=NULL;elem=elem->next,i++){
 482                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
 483         }
 484         devices[ndev]=NULL;
 485         old=lc->sound_conf.cards;
 486         lc->sound_conf.cards=devices;
 487         if (old!=NULL) ms_free(old);
 488 }
 489
 490 static void sound_config_read(LinphoneCore *lc)
 491 {
 492         int tmp;
 493         const char *tmpbuf;
 494         const char *devid;
 495 #ifdef __linux
 496         /*alsadev let the user use custom alsa device within linphone*/
 497         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
 498         if (devid){
 499                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
 500                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
 501         }
 502         tmp=lp_config_get_int(lc->config,"sound","alsa_forced_rate",-1);
 503         if (tmp>0) ms_alsa_card_set_forced_sample_rate(tmp);
 504 #endif
 505         /* retrieve all sound devices */
 506         build_sound_devices_table(lc);
 507
 508         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
 509         linphone_core_set_playback_device(lc,devid);
 510
 511         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
 512         linphone_core_set_ringer_device(lc,devid);
 513
 514         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
 515         linphone_core_set_capture_device(lc,devid);
 516
 517 /*
 518         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
 519         linphone_core_set_play_level(lc,tmp);
 520         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
 521         linphone_core_set_ring_level(lc,tmp);
 522         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
 523         linphone_core_set_rec_level(lc,tmp);
 524         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
 525         linphone_core_set_sound_source(lc,tmpbuf[0]);
 526 */
 527
 528         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 529         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
 530         if (ortp_file_exist(tmpbuf)==-1) {
 531                 ms_warning("%s does not exist",tmpbuf);
 532                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 533         }
 534         if (strstr(tmpbuf,".wav")==NULL){
 535                 /* it currently uses old sound files, so replace them */
 536                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 537         }
 538         linphone_core_set_ring(lc,tmpbuf);
 539
 540         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 541         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
 542         if (ortp_file_exist(tmpbuf)==-1){
 543                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 544         }
 545         if (strstr(tmpbuf,".wav")==NULL){
 546                 /* it currently uses old sound files, so replace them */
 547                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 548         }
 549         linphone_core_set_ringback(lc,tmpbuf);
 550
 551         linphone_core_set_play_file(lc,lp_config_get_string(lc->config,"sound","hold_music",PACKAGE_SOUND_DIR "/" HOLD_MUSIC));
 552         check_sound_device(lc);
 553         lc->sound_conf.latency=0;
 554 #ifndef __ios
 555         tmp=TRUE;
 556 #else
 557         tmp=FALSE; /* on iOS we have builtin echo cancellation.*/
 558 #endif
 559         tmp=lp_config_get_int(lc->config,"sound","echocancellation",tmp);
 560         linphone_core_enable_echo_cancellation(lc,tmp);
 561         linphone_core_enable_echo_limiter(lc,
 562                 lp_config_get_int(lc->config,"sound","echolimiter",0));
 563         linphone_core_enable_agc(lc,
 564                 lp_config_get_int(lc->config,"sound","agc",0));
 565
 566         linphone_core_set_playback_gain_db (lc,lp_config_get_float(lc->config,"sound","playback_gain_db",0));
 567         linphone_core_set_mic_gain_db (lc,lp_config_get_float(lc->config,"sound","mic_gain_db",0));
 568
 569         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
 570
 571         /*just parse requested stream feature once at start to print out eventual errors*/
 572         linphone_core_get_audio_features(lc);
 573 }
 574
 575 static void sip_config_read(LinphoneCore *lc)
 576 {
 577         char *contact;
 578         const char *tmpstr;
 579         LCSipTransports tr;
 580         int i,tmp;
 581         int ipv6;
 582         int random_port;
 583
 584         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
 585         linphone_core_set_use_info_for_dtmf(lc,tmp);
 586
 587         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
 588                 sal_use_session_timers(lc->sal,200);
 589         }
 590
 591         sal_use_rport(lc->sal,lp_config_get_int(lc->config,"sip","use_rport",1));
 592         sal_use_101(lc->sal,lp_config_get_int(lc->config,"sip","use_101",1));
 593         sal_reuse_authorization(lc->sal, lp_config_get_int(lc->config,"sip","reuse_authorization",0));
 594         sal_expire_old_registration_contacts(lc->sal,lp_config_get_int(lc->config,"sip","expire_old_registration_contacts",0));
 595
 596         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",1);
 597         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
 598
 599         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
 600         if (ipv6==-1){
 601                 ipv6=0;
 602         }
 603         linphone_core_enable_ipv6(lc,ipv6);
 604         memset(&tr,0,sizeof(tr));
 605
 606         tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",0);
 607         tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
 608         tr.tls_port=lp_config_get_int(lc->config,"sip","sip_tls_port",0);
 609
 610         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)==1)
 611                 random_port=(0xDFFF&random())+1024;
 612         else random_port=0;
 613
 614         if (tr.udp_port==0 && tr.tcp_port==0 && tr.tls_port==0){
 615                 tr.udp_port=5060;
 616         }
 617
 618         if (tr.udp_port>0 && random_port){
 619                 tr.udp_port=random_port;
 620                 tr.tls_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 621         }else if (tr.tcp_port>0 && random_port){
 622                 tr.tcp_port=random_port;
 623                 tr.tls_port=tr.udp_port=0; /*make sure only one transport is active at a time*/
 624         }else if (tr.tls_port>0 && random_port){
 625                 tr.tls_port=random_port;
 626                 tr.udp_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 627         }
 628
 629 #ifdef __linux
 630         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", "/etc/ssl/certs"));
 631 #else
 632         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", ROOT_CA_FILE));
 633 #endif
 634         linphone_core_verify_server_certificates(lc,lp_config_get_int(lc->config,"sip","verify_server_certs",TRUE));
 635         linphone_core_verify_server_cn(lc,lp_config_get_int(lc->config,"sip","verify_server_cn",TRUE));
 636         /*setting the dscp must be done before starting the transports, otherwise it is not taken into effect*/
 637         sal_set_dscp(lc->sal,linphone_core_get_sip_dscp(lc));
 638         /*start listening on ports*/
 639         linphone_core_set_sip_transports(lc,&tr);
 640
 641         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
 642         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
 643                 const char *hostname=NULL;
 644                 const char *username=NULL;
 645 #ifdef HAVE_GETENV
 646                 hostname=getenv("HOST");
 647                 username=getenv("USER");
 648                 if (hostname==NULL) hostname=getenv("HOSTNAME");
 649 #endif /*HAVE_GETENV*/
 650                 if (hostname==NULL)
 651                         hostname="unknown-host";
 652                 if (username==NULL){
 653                         username="toto";
 654                 }
 655                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
 656                 linphone_core_set_primary_contact(lc,contact);
 657                 ms_free(contact);
 658         }
 659
 660         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
 661         linphone_core_set_guess_hostname(lc,tmp);
 662
 663
 664         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",30);
 665         linphone_core_set_inc_timeout(lc,tmp);
 666
 667         tmp=lp_config_get_int(lc->config,"sip","in_call_timeout",0);
 668         linphone_core_set_in_call_timeout(lc,tmp);
 669
 670         tmp=lp_config_get_int(lc->config,"sip","delayed_timeout",4);
 671         linphone_core_set_delayed_timeout(lc,tmp);
 672
 673         /* get proxies config */
 674         for(i=0;; i++){
 675                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 676                 if (cfg!=NULL){
 677                         linphone_core_add_proxy_config(lc,cfg);
 678                 }else{
 679                         break;
 680                 }
 681         }
 682         /* get the default proxy */
 683         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 684         linphone_core_set_default_proxy_index(lc,tmp);
 685
 686         /* read authentication information */
 687         for(i=0;; i++){
 688                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 689                 if (ai!=NULL){
 690                         linphone_core_add_auth_info(lc,ai);
 691                         linphone_auth_info_destroy(ai);
 692                 }else{
 693                         break;
 694                 }
 695         }
 696         /*this is to filter out unsupported encryption schemes*/
 697         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 698
 699         /*for tuning or test*/
 700         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 701         lc->sip_conf.register_only_when_network_is_up=
 702                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 703         lc->sip_conf.register_only_when_upnp_is_ok=
 704                 lp_config_get_int(lc->config,"sip","register_only_when_upnp_is_ok",1);
 705         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 706         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
 707         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
 708         lc->sip_conf.tcp_tls_keepalive=lp_config_get_int(lc->config,"sip","tcp_tls_keepalive",0);
 709         linphone_core_enable_keep_alive(lc, (lc->sip_conf.keepalive_period > 0));
 710         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
 711         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
 712         sal_use_dates(lc->sal,lp_config_get_int(lc->config,"sip","put_date",0));
 713 }
 714
 715 static void rtp_config_read(LinphoneCore *lc)
 716 {
 717         int min_port, max_port;
 718         int jitt_comp;
 719         int nortp_timeout;
 720         bool_t rtp_no_xmit_on_audio_mute;
 721         bool_t adaptive_jitt_comp_enabled;
 722
 723         if (lp_config_get_range(lc->config, "rtp", "audio_rtp_port", &min_port, &max_port, 7078, 7078) == TRUE) {
 724                 if (min_port <= 0) min_port = 1;
 725                 if (max_port > 65535) max_port = 65535;
 726                 linphone_core_set_audio_port_range(lc, min_port, max_port);
 727         } else {
 728                 min_port = lp_config_get_int(lc->config, "rtp", "audio_rtp_port", 7078);
 729                 linphone_core_set_audio_port(lc, min_port);
 730         }
 731
 732         if (lp_config_get_range(lc->config, "rtp", "video_rtp_port", &min_port, &max_port, 9078, 9078) == TRUE) {
 733                 if (min_port <= 0) min_port = 1;
 734                 if (max_port > 65535) max_port = 65535;
 735                 linphone_core_set_video_port_range(lc, min_port, max_port);
 736         } else {
 737                 min_port = lp_config_get_int(lc->config, "rtp", "video_rtp_port", 9078);
 738                 linphone_core_set_video_port(lc, min_port);
 739         }
 740
 741         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 742         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 743         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 744         if (jitt_comp==0) jitt_comp=60;
 745         linphone_core_set_video_jittcomp(lc,jitt_comp);
 746         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 747         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 748         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
 749         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
 750         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
 751         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 752         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
 753         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 754 }
 755
 756 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 757         PayloadType *candidate=NULL;
 758         int i;
 759         PayloadType *it;
 760         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 761                 it=rtp_profile_get_payload(prof,i);
 762                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 763                         && (clock_rate==it->clock_rate || clock_rate<=0)
 764                         && (channels==it->channels || channels<=0) ){
 765                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 766                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 767                                 /*exact match*/
 768                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 769                                 return it;
 770                         }else {
 771                                 if (candidate){
 772                                         if (it->recv_fmtp==NULL) candidate=it;
 773                                 }else candidate=it;
 774                         }
 775                 }
 776         }
 777         if (candidate && recv_fmtp){
 778                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 779         }
 780         return candidate;
 781 }
 782
 783 static bool_t get_codec(LinphoneCore *lc, const char* type, int index, PayloadType **ret){
 784         char codeckey[50];
 785         const char *mime,*fmtp;
 786         int rate,channels,enabled;
 787         PayloadType *pt;
 788         LpConfig *config=lc->config;
 789
 790         *ret=NULL;
 791         snprintf(codeckey,50,"%s_%i",type,index);
 792         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 793         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 794
 795         rate=lp_config_get_int(config,codeckey,"rate",8000);
 796         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 797         channels=lp_config_get_int(config,codeckey,"channels",0);
 798         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 799         pt=find_payload(lc->default_profile,mime,rate,channels,fmtp);
 800         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 801         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 802         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 803                         mime,rate,fmtp ? fmtp : "");
 804         *ret=pt;
 805         return TRUE;
 806 }
 807
 808 #define RANK_END 10000
 809
 810 typedef struct codec_desc{
 811         const char *name;
 812         int rate;
 813 }codec_desc_t;
 814
 815 static codec_desc_t codec_pref_order[]={
 816         {"SILK", 16000},
 817         {"speex", 16000},
 818         {"speex", 8000},
 819         {"pcmu",8000},
 820         {"pcma",8000},
 821         {"VP8",90000},
 822         {"H264",90000},
 823         {"MP4V-ES",90000},
 824         {NULL,0}
 825 };
 826
 827 static int find_codec_rank(const char *mime, int clock_rate){
 828         int i;
 829         for(i=0;codec_pref_order[i].name!=NULL;++i){
 830                 if (strcasecmp(codec_pref_order[i].name,mime)==0 && clock_rate==codec_pref_order[i].rate)
 831                         return i;
 832         }
 833         return RANK_END;
 834 }
 835
 836 static int codec_compare(const PayloadType *a, const PayloadType *b){
 837         int ra,rb;
 838         ra=find_codec_rank(a->mime_type,a->clock_rate);
 839         rb=find_codec_rank(b->mime_type,b->clock_rate);
 840         if (ra>rb) return 1;
 841         if (ra<rb) return -1;
 842         return 0;
 843 }
 844
 845 static MSList *add_missing_codecs(LinphoneCore *lc, SalStreamType mtype, MSList *l){
 846         int i;
 847         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 848                 PayloadType *pt=rtp_profile_get_payload(lc->default_profile,i);
 849                 if (pt){
 850                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 851                                 pt=NULL;
 852                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 853                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 854                                 pt=NULL;
 855                         }
 856                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 857                                 if (ms_list_find(l,pt)==NULL){
 858                                         /*unranked codecs are disabled by default*/
 859                                         if (find_codec_rank(pt->mime_type, pt->clock_rate)!=RANK_END){
 860                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 861                                         }
 862                                         ms_message("Adding new codec %s/%i with fmtp %s",
 863                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 864                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 865                                 }
 866                         }
 867                 }
 868         }
 869         return l;
 870 }
 871
 872 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 873         MSList *elem;
 874         for (elem=l;elem!=NULL;elem=elem->next){
 875                 PayloadType *ept=(PayloadType*)elem->data;
 876                 if (pt==ept)
 877                         return l;
 878         }
 879         l=ms_list_append(l,pt);
 880         return l;
 881 }
 882
 883 static void codecs_config_read(LinphoneCore *lc)
 884 {
 885         int i;
 886         PayloadType *pt;
 887         MSList *audio_codecs=NULL;
 888         MSList *video_codecs=NULL;
 889         for (i=0;get_codec(lc,"audio_codec",i,&pt);i++){
 890                 if (pt){
 891                         if (!ms_filter_codec_supported(pt->mime_type)){
 892                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 893                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 894                 }
 895         }
 896         audio_codecs=add_missing_codecs(lc,SalAudio,audio_codecs);
 897         for (i=0;get_codec(lc,"video_codec",i,&pt);i++){
 898                 if (pt){
 899                         if (!ms_filter_codec_supported(pt->mime_type)){
 900                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 901                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 902                 }
 903         }
 904         video_codecs=add_missing_codecs(lc,SalVideo,video_codecs);
 905         linphone_core_set_audio_codecs(lc,audio_codecs);
 906         linphone_core_set_video_codecs(lc,video_codecs);
 907         linphone_core_update_allocated_audio_bandwidth(lc);
 908 }
 909
 910 static void build_video_devices_table(LinphoneCore *lc){
 911         const MSList *elem;
 912         int i;
 913         int ndev;
 914         const char **devices;
 915         if (lc->video_conf.cams)
 916                 ms_free(lc->video_conf.cams);
 917         /* retrieve all video devices */
 918         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 919         ndev=ms_list_size(elem);
 920         devices=ms_malloc((ndev+1)*sizeof(const char *));
 921         for (i=0;elem!=NULL;elem=elem->next,i++){
 922                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 923         }
 924         devices[ndev]=NULL;
 925         lc->video_conf.cams=devices;
 926 }
 927
 928 static void video_config_read(LinphoneCore *lc){
 929 #ifdef VIDEO_ENABLED
 930         int capture, display, self_view;
 931 #endif
 932         const char *str;
 933 #ifdef VIDEO_ENABLED
 934         LinphoneVideoPolicy vpol;
 935         memset(&vpol, 0, sizeof(LinphoneVideoPolicy));
 936 #endif
 937         build_video_devices_table(lc);
 938
 939         str=lp_config_get_string(lc->config,"video","device",NULL);
 940         if (str && str[0]==0) str=NULL;
 941         linphone_core_set_video_device(lc,str);
 942
 943         linphone_core_set_preferred_video_size_by_name(lc,
 944                 lp_config_get_string(lc->config,"video","size","cif"));
 945
 946 #ifdef VIDEO_ENABLED
 947         capture=lp_config_get_int(lc->config,"video","capture",1);
 948         display=lp_config_get_int(lc->config,"video","display",1);
 949         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 950         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 951         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 952         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 953         if(lc->video_conf.displaytype)
 954                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 955
 956         linphone_core_enable_video(lc,capture,display);
 957         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 958         linphone_core_enable_self_view(lc,self_view);
 959         linphone_core_set_video_policy(lc,&vpol);
 960 #endif
 961 }
 962
 963 static void ui_config_read(LinphoneCore *lc)
 964 {
 965         LinphoneFriend *lf;
 966         int i;
 967         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 968                 linphone_core_add_friend(lc,lf);
 969         }
 970         call_logs_read_from_config_file(lc);
 971 }
 972
 973 /*
 974 static void autoreplier_config_init(LinphoneCore *lc)
 975 {
 976         autoreplier_config_t *config=&lc->autoreplier_conf;
 977         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 978         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 979         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 980         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 981         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 982         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 983 }
 984 */
 985
 986 bool_t linphone_core_tunnel_available(void){
 987 #ifdef TUNNEL_ENABLED
 988         return TRUE;
 989 #else
 990         return FALSE;
 991 #endif
 992 }
 993
 994 /**
 995  * Enable adaptive rate control.
 996  *
 997  * @ingroup media_parameters
 998  *
 999  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
1000  * control the output bitrate of the audio and video encoders, so that we can adapt to the network conditions and
1001  * available bandwidth. Control of the audio encoder is done in case of audio-only call, and control of the video encoder is done for audio & video calls.
1002  * Adaptive rate control feature is enabled by default.
1003 **/
1004 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
1005         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
1006 }
1007
1008 /**
1009  * Returns whether adaptive rate control is enabled.
1010  *
1011  * @ingroup media_parameters
1012  *
1013  * See linphone_core_enable_adaptive_rate_control().
1014 **/
1015 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
1016         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
1017 }
1018
1019 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
1020         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
1021 }
1022
1023 /**
1024  * Sets maximum available download bandwidth
1025  *
1026  * @ingroup media_parameters
1027  *
1028  * This is IP bandwidth, in kbit/s.
1029  * This information is used signaled to other parties during
1030  * calls (within SDP messages) so that the remote end can have
1031  * sufficient knowledge to properly configure its audio & video
1032  * codec output bitrate to not overflow available bandwidth.
1033  *
1034  * @param lc the LinphoneCore object
1035  * @param bw the bandwidth in kbits/s, 0 for infinite
1036  */
1037 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
1038         lc->net_conf.download_bw=bw;
1039         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
1040 }
1041
1042 /**
1043  * Sets maximum available upload bandwidth
1044  *
1045  * @ingroup media_parameters
1046  *
1047  * This is IP bandwidth, in kbit/s.
1048  * This information is used by liblinphone together with remote
1049  * side available bandwidth signaled in SDP messages to properly
1050  * configure audio & video codec's output bitrate.
1051  *
1052  * @param lc the LinphoneCore object
1053  * @param bw the bandwidth in kbits/s, 0 for infinite
1054  */
1055 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
1056         lc->net_conf.upload_bw=bw;
1057         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
1058 }
1059
1060 /**
1061  * Retrieve the maximum available download bandwidth.
1062  *
1063  * @ingroup media_parameters
1064  *
1065  * This value was set by linphone_core_set_download_bandwidth().
1066  *
1067 **/
1068 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
1069         return lc->net_conf.download_bw;
1070 }
1071
1072 /**
1073  * Retrieve the maximum available upload bandwidth.
1074  *
1075  * @ingroup media_parameters
1076  *
1077  * This value was set by linphone_core_set_upload_bandwidth().
1078  *
1079 **/
1080 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
1081         return lc->net_conf.upload_bw;
1082 }
1083 /**
1084  * Set audio packetization time linphone expects to receive from peer.
1085  * A value of zero means that ptime is not specified.
1086  * @ingroup media_parameters
1087  */
1088 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
1089         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
1090 }
1091
1092 /**
1093  * Get audio packetization time linphone expects to receive from peer.
1094  * A value of zero means that ptime is not specified.
1095  * @ingroup media_parameters
1096  */
1097 int linphone_core_get_download_ptime(LinphoneCore *lc) {
1098         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
1099 }
1100
1101 /**
1102  * Set audio packetization time linphone will send (in absence of requirement from peer)
1103  * A value of 0 stands for the current codec default packetization time.
1104  *
1105  * @ingroup media_parameters
1106 **/
1107 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
1108         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
1109 }
1110
1111 /**
1112  * Set audio packetization time linphone will send (in absence of requirement from peer)
1113  * A value of 0 stands for the current codec default packetization time.
1114  *
1115  *
1116  * @ingroup media_parameters
1117 **/
1118 int linphone_core_get_upload_ptime(LinphoneCore *lc){
1119         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
1120 }
1121
1122
1123
1124 /**
1125  * Returns liblinphone's version as a string.
1126  *
1127  * @ingroup misc
1128  *
1129 **/
1130 const char * linphone_core_get_version(void){
1131         return liblinphone_version;
1132 }
1133
1134 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1135         PayloadType *pt;
1136         pt=payload_type_clone(const_pt);
1137         if (number==-1){
1138                 /*look for a free number */
1139                 MSList *elem;
1140                 int i;
1141                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1142                         bool_t already_assigned=FALSE;
1143                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1144                                 PayloadType *it=(PayloadType*)elem->data;
1145                                 if (payload_type_get_number(it)==i){
1146                                         already_assigned=TRUE;
1147                                         break;
1148                                 }
1149                         }
1150                         if (!already_assigned){
1151                                 number=i;
1152                                 lc->dyn_pt=i+1;
1153                                 break;
1154                         }
1155                 }
1156                 if (number==-1){
1157                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1158                 }
1159         }
1160         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1161         payload_type_set_number(pt,number);
1162         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1163         rtp_profile_set_payload(lc->default_profile,number,pt);
1164         lc->payload_types=ms_list_append(lc->payload_types,pt);
1165 }
1166
1167 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1168         RtpProfile *prof=&av_profile;
1169         int i;
1170         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1171                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1172                 if (pt){
1173                         if (payload_type_get_number(pt)!=i){
1174                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1175                         }
1176                 }
1177         }
1178 }
1179
1180 static void linphone_core_free_payload_types(LinphoneCore *lc){
1181         rtp_profile_clear_all(lc->default_profile);
1182         rtp_profile_destroy(lc->default_profile);
1183         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1184         ms_list_free(lc->payload_types);
1185         lc->payload_types=NULL;
1186 }
1187
1188 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1189         lc->state=gstate;
1190         if (lc->vtable.global_state_changed){
1191                 lc->vtable.global_state_changed(lc,gstate,message);
1192         }
1193 }
1194 static void misc_config_read (LinphoneCore *lc) {
1195         LpConfig *config=lc->config;
1196     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1197     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1198 }
1199
1200
1201
1202
1203 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1204     const char *factory_config_path, void * userdata)
1205 {
1206         ms_message("Initializing LinphoneCore %s", linphone_core_get_version());
1207         memset (lc, 0, sizeof (LinphoneCore));
1208         lc->data=userdata;
1209         lc->ringstream_autorelease=TRUE;
1210
1211         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1212
1213         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1214         ortp_init();
1215         lc->dyn_pt=96;
1216         lc->default_profile=rtp_profile_new("default profile");
1217         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1218         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1219         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1220         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1221         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1222         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1223         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1224         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1225
1226 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1227         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1228          - to workaround potential packet losses
1229          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1230          */
1231         _linphone_core_configure_resolver();
1232 #endif
1233
1234 #ifdef ENABLE_NONSTANDARD_GSM
1235         {
1236                 PayloadType *pt;
1237                 pt=payload_type_clone(&payload_type_gsm);
1238                 pt->clock_rate=11025;
1239                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1240                 pt->clock_rate=22050;
1241                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1242                 payload_type_destroy(pt);
1243         }
1244 #endif
1245
1246 #ifdef VIDEO_ENABLED
1247         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1248         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1249         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1250         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1251         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1252         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1253         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1254         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1255         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1256 #endif
1257
1258         /*add all payload type for which we don't care about the number */
1259         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1260         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1261         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1262         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1263         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1264         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1265         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1266         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1267         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1268         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1269         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1270         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1271         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1272         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1273         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1274         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1275         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1276         linphone_core_handle_static_payloads(lc);
1277
1278         ms_init();
1279         /* create a mediastreamer2 event queue and set it as global */
1280         /* This allows to run event's callback in linphone_core_iterate() */
1281         lc->msevq=ms_event_queue_new();
1282         ms_set_global_event_queue(lc->msevq);
1283
1284         lc->config=lp_config_new(config_path);
1285         if (factory_config_path)
1286                 lp_config_read_file(lc->config,factory_config_path);
1287
1288         lc->sal=sal_init();
1289         sal_set_user_pointer(lc->sal,lc);
1290         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1291
1292         lc->network_last_check = 0;
1293         lc->network_last_status = FALSE;
1294
1295         sip_setup_register_all();
1296         sound_config_read(lc);
1297         net_config_read(lc);
1298         rtp_config_read(lc);
1299         codecs_config_read(lc);
1300         sip_config_read(lc); /* this will start eXosip*/
1301         video_config_read(lc);
1302         //autoreplier_config_init(&lc->autoreplier_conf);
1303         lc->presence_mode=LinphoneStatusOnline;
1304         misc_config_read(lc);
1305         ui_config_read(lc);
1306 #ifdef TUNNEL_ENABLED
1307         lc->tunnel=linphone_core_tunnel_new(lc);
1308         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1309 #endif
1310         if (lc->vtable.display_status)
1311                 lc->vtable.display_status(lc,_("Ready"));
1312         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1313         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1314 }
1315
1316 /**
1317  * Instanciates a LinphoneCore object.
1318  * @ingroup initializing
1319  *
1320  * The LinphoneCore object is the primary handle for doing all phone actions.
1321  * It should be unique within your application.
1322  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1323  * @param config_path a path to a config file. If it does not exists it will be created.
1324  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1325  *             become persistent over the life of the LinphoneCore object.
1326  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1327  * @param factory_config_path a path to a read-only config file that can be used to
1328  *        to store hard-coded preference such as proxy settings or internal preferences.
1329  *        The settings in this factory file always override the one in the normal config file.
1330  *        It is OPTIONAL, use NULL if unneeded.
1331  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1332  *        callbacks) using linphone_core_get_user_data().
1333  *
1334 **/
1335 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1336                                                 const char *config_path, const char *factory_config_path, void * userdata)
1337 {
1338         LinphoneCore *core=ms_new(LinphoneCore,1);
1339         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1340         return core;
1341 }
1342
1343 /**
1344  * Returns the list of available audio codecs.
1345  *
1346  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1347  * structure holding the codec information.
1348  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1349  * (such as the order of codecs).
1350  * @ingroup media_parameters
1351 **/
1352 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1353 {
1354         return lc->codecs_conf.audio_codecs;
1355 }
1356
1357 /**
1358  * Returns the list of available video codecs.
1359  *
1360  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1361  * structure holding the codec information.
1362  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1363  * (such as the order of codecs).
1364  * @ingroup media_parameters
1365 **/
1366 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1367 {
1368         return lc->codecs_conf.video_codecs;
1369 }
1370
1371 /**
1372  * Sets the local "from" identity.
1373  *
1374  * @ingroup proxies
1375  * This data is used in absence of any proxy configuration or when no
1376  * default proxy configuration is set. See LinphoneProxyConfig
1377 **/
1378 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1379 {
1380         LinphoneAddress *ctt;
1381
1382         if ((ctt=linphone_address_new(contact))==0) {
1383                 ms_error("Bad contact url: %s",contact);
1384                 return -1;
1385         }
1386         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1387         lc->sip_conf.contact=ms_strdup(contact);
1388         if (lc->sip_conf.guessed_contact!=NULL){
1389                 ms_free(lc->sip_conf.guessed_contact);
1390                 lc->sip_conf.guessed_contact=NULL;
1391         }
1392         linphone_address_destroy(ctt);
1393         return 0;
1394 }
1395
1396
1397 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1398 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1399         const char *ip;
1400         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1401             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1402                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1403                 return;
1404         }
1405 #ifdef BUILD_UPNP
1406         else if (lc->upnp != NULL && linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp &&
1407                         linphone_upnp_context_get_state(lc->upnp) == LinphoneUpnpStateOk) {
1408                 ip = linphone_upnp_context_get_external_ipaddress(lc->upnp);
1409                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1410                 return;
1411         }
1412 #endif //BUILD_UPNP
1413         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1414                 return;
1415         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1416         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1417 }
1418
1419 static void update_primary_contact(LinphoneCore *lc){
1420         char *guessed=NULL;
1421         char tmp[LINPHONE_IPADDR_SIZE];
1422
1423         LinphoneAddress *url;
1424         if (lc->sip_conf.guessed_contact!=NULL){
1425                 ms_free(lc->sip_conf.guessed_contact);
1426                 lc->sip_conf.guessed_contact=NULL;
1427         }
1428         url=linphone_address_new(lc->sip_conf.contact);
1429         if (!url){
1430                 ms_error("Could not parse identity contact !");
1431                 url=linphone_address_new("sip:unknown@unkwownhost");
1432         }
1433         linphone_core_get_local_ip(lc, NULL, tmp);
1434         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1435                 ms_warning("Local loopback network only !");
1436                 lc->sip_conf.loopback_only=TRUE;
1437         }else lc->sip_conf.loopback_only=FALSE;
1438         linphone_address_set_domain(url,tmp);
1439         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1440         guessed=linphone_address_as_string(url);
1441         lc->sip_conf.guessed_contact=guessed;
1442         linphone_address_destroy(url);
1443 }
1444
1445 /**
1446  * Returns the default identity when no proxy configuration is used.
1447  *
1448  * @ingroup proxies
1449 **/
1450 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1451         char *identity;
1452
1453         if (lc->sip_conf.guess_hostname){
1454                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1455                         update_primary_contact(lc);
1456                 }
1457                 identity=lc->sip_conf.guessed_contact;
1458         }else{
1459                 identity=lc->sip_conf.contact;
1460         }
1461         return identity;
1462 }
1463
1464 /**
1465  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1466  *
1467  * @ingroup proxies
1468 **/
1469 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1470         lc->sip_conf.guess_hostname=val;
1471 }
1472
1473 /**
1474  * Returns TRUE if hostname part of primary contact is guessed automatically.
1475  *
1476  * @ingroup proxies
1477 **/
1478 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1479         return lc->sip_conf.guess_hostname;
1480 }
1481
1482 /**
1483  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1484  * instead of const char*
1485  *
1486  * @ingroup proxies
1487 **/
1488 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1489         return linphone_address_new(linphone_core_get_primary_contact(lc));
1490 }
1491
1492 /**
1493  * Sets the list of audio codecs.
1494  *
1495  * @ingroup media_parameters
1496  * The list is taken by the LinphoneCore thus the application should not free it.
1497  * This list is made of struct PayloadType describing the codec parameters.
1498 **/
1499 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1500 {
1501         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1502         lc->codecs_conf.audio_codecs=codecs;
1503         _linphone_core_codec_config_write(lc);
1504         return 0;
1505 }
1506
1507 /**
1508  * Sets the list of video codecs.
1509  *
1510  * @ingroup media_parameters
1511  * The list is taken by the LinphoneCore thus the application should not free it.
1512  * This list is made of struct PayloadType describing the codec parameters.
1513 **/
1514 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1515 {
1516         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1517         lc->codecs_conf.video_codecs=codecs;
1518         _linphone_core_codec_config_write(lc);
1519         return 0;
1520 }
1521
1522 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1523 {
1524         return lc->friends;
1525 }
1526
1527 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1528 {
1529         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1530 }
1531
1532 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1533 {
1534         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1535 }
1536
1537 /**
1538  * Returns the nominal audio jitter buffer size in milliseconds.
1539  *
1540  * @ingroup media_parameters
1541 **/
1542 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1543 {
1544         return lc->rtp_conf.audio_jitt_comp;
1545 }
1546
1547 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1548 {
1549         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1550 }
1551
1552 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1553 {
1554         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1555 }
1556
1557 /**
1558  * Returns the nominal video jitter buffer size in milliseconds.
1559  *
1560  * @ingroup media_parameters
1561 **/
1562 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1563 {
1564         return lc->rtp_conf.video_jitt_comp;
1565 }
1566
1567 /**
1568  * Returns the UDP port used for audio streaming.
1569  *
1570  * @ingroup network_parameters
1571 **/
1572 int linphone_core_get_audio_port(const LinphoneCore *lc)
1573 {
1574         return lc->rtp_conf.audio_rtp_min_port;
1575 }
1576
1577 /**
1578  * Get the audio port range from which is randomly chosen the UDP port used for audio streaming.
1579  *
1580  * @ingroup network_parameters
1581  */
1582 void linphone_core_get_audio_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1583 {
1584         *min_port = lc->rtp_conf.audio_rtp_min_port;
1585         *max_port = lc->rtp_conf.audio_rtp_max_port;
1586 }
1587
1588 /**
1589  * Returns the UDP port used for video streaming.
1590  *
1591  * @ingroup network_parameters
1592 **/
1593 int linphone_core_get_video_port(const LinphoneCore *lc){
1594         return lc->rtp_conf.video_rtp_min_port;
1595 }
1596
1597 /**
1598  * Get the video port range from which is randomly chosen the UDP port used for video streaming.
1599  *
1600  * @ingroup network_parameters
1601  */
1602 void linphone_core_get_video_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1603 {
1604         *min_port = lc->rtp_conf.video_rtp_min_port;
1605         *max_port = lc->rtp_conf.video_rtp_max_port;
1606 }
1607
1608
1609 /**
1610  * Returns the value in seconds of the no-rtp timeout.
1611  *
1612  * @ingroup media_parameters
1613  * When no RTP or RTCP packets have been received for a while
1614  * LinphoneCore will consider the call is broken (remote end crashed or
1615  * disconnected from the network), and thus will terminate the call.
1616  * The no-rtp timeout is the duration above which the call is considered broken.
1617 **/
1618 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1619         return lc->rtp_conf.nortp_timeout;
1620 }
1621
1622 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1623         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1624 }
1625
1626 /**
1627  * Sets the nominal audio jitter buffer size in milliseconds.
1628  *
1629  * @ingroup media_parameters
1630 **/
1631 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1632 {
1633         lc->rtp_conf.audio_jitt_comp=value;
1634 }
1635
1636 /**
1637  * Sets the nominal video jitter buffer size in milliseconds.
1638  *
1639  * @ingroup media_parameters
1640 **/
1641 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1642 {
1643         lc->rtp_conf.video_jitt_comp=value;
1644 }
1645
1646 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1647         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1648 }
1649
1650 /**
1651  * Sets the UDP port used for audio streaming.
1652  *
1653  * @ingroup network_parameters
1654 **/
1655 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1656 {
1657         lc->rtp_conf.audio_rtp_min_port=lc->rtp_conf.audio_rtp_max_port=port;
1658 }
1659
1660 /**
1661  * Sets the UDP port range from which to randomly select the port used for audio streaming.
1662  * @ingroup media_parameters
1663  */
1664 void linphone_core_set_audio_port_range(LinphoneCore *lc, int min_port, int max_port)
1665 {
1666         lc->rtp_conf.audio_rtp_min_port=min_port;
1667         lc->rtp_conf.audio_rtp_max_port=max_port;
1668 }
1669
1670 /**
1671  * Sets the UDP port used for video streaming.
1672  *
1673  * @ingroup network_parameters
1674 **/
1675 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1676         lc->rtp_conf.video_rtp_min_port=lc->rtp_conf.video_rtp_max_port=port;
1677 }
1678
1679 /**
1680  * Sets the UDP port range from which to randomly select the port used for video streaming.
1681  * @ingroup media_parameters
1682  */
1683 void linphone_core_set_video_port_range(LinphoneCore *lc, int min_port, int max_port)
1684 {
1685         lc->rtp_conf.video_rtp_min_port=min_port;
1686         lc->rtp_conf.video_rtp_max_port=max_port;
1687 }
1688
1689 /**
1690  * Sets the no-rtp timeout value in seconds.
1691  *
1692  * @ingroup media_parameters
1693  * See linphone_core_get_nortp_timeout() for details.
1694 **/
1695 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1696         lc->rtp_conf.nortp_timeout=nortp_timeout;
1697 }
1698
1699 /**
1700  * Indicates whether SIP INFO is used for sending digits.
1701  *
1702  * @ingroup media_parameters
1703 **/
1704 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1705 {
1706         return lc->sip_conf.use_info;
1707 }
1708
1709 /**
1710  * Sets whether SIP INFO is to be used for sending digits.
1711  *
1712  * @ingroup media_parameters
1713 **/
1714 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1715 {
1716         lc->sip_conf.use_info=use_info;
1717 }
1718
1719 /**
1720  * Indicates whether RFC2833 is used for sending digits.
1721  *
1722  * @ingroup media_parameters
1723 **/
1724 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1725 {
1726         return lc->sip_conf.use_rfc2833;
1727 }
1728
1729 /**
1730  * Sets whether RFC2833 is to be used for sending digits.
1731  *
1732  * @ingroup media_parameters
1733 **/
1734 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1735 {
1736         lc->sip_conf.use_rfc2833=use_rfc2833;
1737 }
1738
1739 /**
1740  * Returns the UDP port used by SIP.
1741  *
1742  * Deprecated: use linphone_core_get_sip_transports() instead.
1743  * @ingroup network_parameters
1744 **/
1745 int linphone_core_get_sip_port(LinphoneCore *lc)
1746 {
1747         LCSipTransports *tr=&lc->sip_conf.transports;
1748         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1749 }
1750
1751 static char _ua_name[64]="Linphone";
1752 static char _ua_version[64]=LINPHONE_VERSION;
1753
1754 #ifdef HAVE_EXOSIP_GET_VERSION
1755 extern const char *eXosip_get_version();
1756 #endif
1757
1758 static void apply_user_agent(LinphoneCore *lc){
1759         char ua_string[256];
1760         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1761 #ifdef HAVE_EXOSIP_GET_VERSION
1762                  eXosip_get_version()
1763 #else
1764                  "unknown"
1765 #endif
1766         );
1767         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1768 }
1769
1770 /**
1771  * Sets the user agent string used in SIP messages.
1772  *
1773  * @ingroup misc
1774 **/
1775 void linphone_core_set_user_agent(LinphoneCore *lc, const char *name, const char *ver){
1776         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1777         strncpy(_ua_version,ver,sizeof(_ua_version));
1778         apply_user_agent(lc);
1779 }
1780
1781 const char *linphone_core_get_user_agent_name(void){
1782         return _ua_name;
1783 }
1784
1785 const char *linphone_core_get_user_agent_version(void){
1786         return _ua_version;
1787 }
1788
1789 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1790         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1791         ms_warning("%s",msg);
1792         if (lc->vtable.display_warning)
1793                 lc->vtable.display_warning(lc,msg);
1794         ms_free(msg);
1795 }
1796
1797 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1798         return
1799                 tr2->udp_port==tr1->udp_port &&
1800                 tr2->tcp_port==tr1->tcp_port &&
1801                 tr2->dtls_port==tr1->dtls_port &&
1802                 tr2->tls_port==tr1->tls_port;
1803 }
1804
1805 static int apply_transports(LinphoneCore *lc){
1806         Sal *sal=lc->sal;
1807         const char *anyaddr;
1808         LCSipTransports *tr=&lc->sip_conf.transports;
1809
1810         /*first of all invalidate all current registrations so that we can register again with new transports*/
1811         __linphone_core_invalidate_registers(lc);
1812
1813         if (lc->sip_conf.ipv6_enabled)
1814                 anyaddr="::0";
1815         else
1816                 anyaddr="0.0.0.0";
1817
1818         sal_unlisten_ports(sal);
1819         if (tr->udp_port>0){
1820                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1821                         transport_error(lc,"udp",tr->udp_port);
1822                         return -1;
1823                 }
1824         }
1825         if (tr->tcp_port>0){
1826                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1827                         transport_error(lc,"tcp",tr->tcp_port);
1828                 }
1829         }
1830         if (tr->tls_port>0){
1831                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1832                         transport_error(lc,"tls",tr->tls_port);
1833                 }
1834         }
1835         apply_user_agent(lc);
1836         return 0;
1837 }
1838
1839 /**
1840  * Sets the ports to be used for each of transport (UDP or TCP)
1841  *
1842  * A zero value port for a given transport means the transport
1843  * is not used.
1844  *
1845  * @ingroup network_parameters
1846 **/
1847 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1848
1849         if (transports_unchanged(tr,&lc->sip_conf.transports))
1850                 return 0;
1851         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1852
1853         if (linphone_core_ready(lc)){
1854                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1855                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1856                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1857         }
1858
1859         if (lc->sal==NULL) return 0;
1860         return apply_transports(lc);
1861 }
1862
1863 /**
1864  * Retrieves the ports used for each transport (udp, tcp).
1865  * A zero value port for a given transport means the transport
1866  * is not used.
1867  * @ingroup network_parameters
1868 **/
1869 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1870         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1871         return 0;
1872 }
1873
1874 /**
1875  * Sets the UDP port to be used by SIP.
1876  *
1877  * Deprecated: use linphone_core_set_sip_transports() instead.
1878  * @ingroup network_parameters
1879 **/
1880 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1881 {
1882         LCSipTransports tr;
1883         memset(&tr,0,sizeof(tr));
1884         tr.udp_port=port;
1885         linphone_core_set_sip_transports (lc,&tr);
1886 }
1887
1888 /**
1889  * Returns TRUE if IPv6 is enabled.
1890  *
1891  * @ingroup network_parameters
1892  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1893 **/
1894 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1895         return lc->sip_conf.ipv6_enabled;
1896 }
1897
1898 /**
1899  * Turns IPv6 support on or off.
1900  *
1901  * @ingroup network_parameters
1902  *
1903  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1904  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1905  * By default IPv6 support is off.
1906 **/
1907 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1908         if (lc->sip_conf.ipv6_enabled!=val){
1909                 lc->sip_conf.ipv6_enabled=val;
1910                 if (lc->sal){
1911                         /* we need to restart eXosip */
1912                         apply_transports(lc);
1913                 }
1914         }
1915 }
1916
1917
1918 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1919         char result[LINPHONE_IPADDR_SIZE];
1920         bool_t new_status=lc->network_last_status;
1921
1922         /* only do the network up checking every five seconds */
1923         if (lc->network_last_check==0 || (curtime-lc->network_last_check)>=5){
1924                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1925                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1926                         new_status=TRUE;
1927                 }else new_status=FALSE;
1928                 lc->network_last_check=curtime;
1929                 if (new_status!=lc->network_last_status) {
1930                         if (new_status){
1931                                 ms_message("New local ip address is %s",result);
1932                         }
1933                         set_network_reachable(lc,new_status, curtime);
1934                         lc->network_last_status=new_status;
1935                 }
1936         }
1937 }
1938
1939 static void proxy_update(LinphoneCore *lc){
1940         MSList *elem,*next;
1941         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1942         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1943                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1944                 next=elem->next;
1945                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1946                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1947                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1948                         linphone_proxy_config_destroy(cfg);
1949                 }
1950         }
1951 }
1952
1953 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1954         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1955         if (lf!=NULL){
1956                 lf->info=info;
1957                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1958                 if (lc->vtable.buddy_info_updated)
1959                         lc->vtable.buddy_info_updated(lc,lf);
1960         }else{
1961                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1962         }
1963 }
1964
1965 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1966         MSList *elem;
1967         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1968         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1969                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1970                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1971                         if (req->results!=NULL){
1972                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1973                                 ms_list_free(req->results);
1974                                 req->results=NULL;
1975                                 assign_buddy_info(lc,i);
1976                         }
1977                         sip_setup_context_buddy_lookup_free(ctx,req);
1978                         elem->data=NULL;
1979                 }
1980         }
1981         /*purge completed requests */
1982         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1983                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1984         }
1985 }
1986
1987 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1988         const MSList *elem;
1989         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1990         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1991                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1992                 if (lf->info==NULL){
1993                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1994                                 if (linphone_address_get_username(lf->uri)!=NULL){
1995                                         BuddyLookupRequest *req;
1996                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1997                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1998                                         buddy_lookup_request_set_key(req,tmp);
1999                                         buddy_lookup_request_set_max_results(req,1);
2000                                         sip_setup_context_buddy_lookup_submit(ctx,req);
2001                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
2002                                         ms_free(tmp);
2003                                 }
2004                         }
2005                 }
2006         }
2007 }
2008
2009 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
2010         LinphoneProxyConfig *cfg=NULL;
2011         linphone_core_get_default_proxy(lc,&cfg);
2012         if (cfg){
2013                 if (lc->bl_refresh){
2014                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
2015                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
2016                                 linphone_core_grab_buddy_infos(lc,cfg);
2017                                 lc->bl_refresh=FALSE;
2018                         }
2019                 }
2020                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
2021         }
2022 }
2023
2024 /**
2025  * Main loop function. It is crucial that your application call it periodically.
2026  *
2027  * @ingroup initializing
2028  * linphone_core_iterate() performs various backgrounds tasks:
2029  * - receiving of SIP messages
2030  * - handles timers and timeout
2031  * - performs registration to proxies
2032  * - authentication retries
2033  * The application MUST call this function periodically, in its main loop.
2034  * Be careful that this function must be called from the same thread as
2035  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
2036  * serialized with a mutex.
2037 **/
2038 void linphone_core_iterate(LinphoneCore *lc){
2039         MSList *calls;
2040         LinphoneCall *call;
2041         time_t curtime=time(NULL);
2042         int elapsed;
2043         bool_t one_second_elapsed=FALSE;
2044
2045         if (curtime-lc->prevtime>=1){
2046                 lc->prevtime=curtime;
2047                 one_second_elapsed=TRUE;
2048         }
2049
2050         if (lc->ecc!=NULL){
2051                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
2052                 if (ecs!=LinphoneEcCalibratorInProgress){
2053                         if (lc->ecc->cb)
2054                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
2055                         if (ecs==LinphoneEcCalibratorDone){
2056                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
2057                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-(len/2),0));
2058                         } else if (ecs == LinphoneEcCalibratorFailed) {
2059                                 lp_config_set_int(lc->config, "sound", "ec_delay", LP_CONFIG_DEFAULT_INT(lc->config, "ec_delay", 250));
2060                         } else if (ecs == LinphoneEcCalibratorDoneNoEcho) {
2061                                 linphone_core_enable_echo_cancellation(lc, FALSE);
2062                         }
2063                         ec_calibrator_destroy(lc->ecc);
2064                         lc->ecc=NULL;
2065                 }
2066         }
2067
2068         if (lc->preview_finished){
2069                 lc->preview_finished=0;
2070                 ring_stop(lc->ringstream);
2071                 lc->ringstream=NULL;
2072                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
2073         }
2074
2075         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
2076             && (curtime-lc->dmfs_playing_start_time)>5){
2077                 ring_stop(lc->ringstream);
2078                 lc->ringstream=NULL;
2079                 lc->dmfs_playing_start_time=0;
2080         }
2081
2082         sal_iterate(lc->sal);
2083         if (lc->msevq) ms_event_queue_pump(lc->msevq);
2084         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
2085
2086         proxy_update(lc);
2087
2088         //we have to iterate for each call
2089         calls= lc->calls;
2090         while(calls!= NULL){
2091                 call = (LinphoneCall *)calls->data;
2092                 elapsed = curtime-call->start_time;
2093                  /* get immediately a reference to next one in case the one
2094                  we are going to examine is destroy and removed during
2095                  linphone_core_start_invite() */
2096                 calls=calls->next;
2097                 linphone_call_background_tasks(call,one_second_elapsed);
2098                 if (call->state==LinphoneCallOutgoingInit && (elapsed>=lc->sip_conf.delayed_timeout)){
2099                         /*start the call even if the OPTIONS reply did not arrive*/
2100                         if (call->ice_session != NULL) {
2101                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
2102                                                 ,linphone_core_get_stun_server(lc));
2103                                 linphone_call_delete_ice_session(call);
2104                                 linphone_call_stop_media_streams_for_ice_gathering(call);
2105                         }
2106 #ifdef BUILD_UPNP
2107                         if (call->upnp_session != NULL) {
2108                                 ms_warning("uPnP mapping has not finished yet, proceeded with the call without uPnP anyway.");
2109                                 linphone_call_delete_upnp_session(call);
2110                         }
2111 #endif //BUILD_UPNP
2112                         linphone_core_start_invite(lc,call);
2113                 }
2114                 if (call->state==LinphoneCallIncomingReceived){
2115                         ms_message("incoming call ringing for %i seconds",elapsed);
2116                         if (elapsed>lc->sip_conf.inc_timeout){
2117                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
2118                                 call->log->status=LinphoneCallMissed;
2119                                 call->reason=LinphoneReasonNotAnswered;
2120                                 linphone_core_terminate_call(lc,call);
2121                         }
2122                 }
2123                 if (lc->sip_conf.in_call_timeout > 0 && elapsed>lc->sip_conf.in_call_timeout) {
2124                         ms_message("in call timeout (%i)",lc->sip_conf.in_call_timeout);
2125                         linphone_core_terminate_call(lc,call);
2126                 }
2127         }
2128
2129         if (linphone_core_video_preview_enabled(lc)){
2130                 if (lc->previewstream==NULL && lc->calls==NULL)
2131                         toggle_video_preview(lc,TRUE);
2132 #ifdef VIDEO_ENABLED
2133                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
2134 #endif
2135         }else{
2136                 if (lc->previewstream!=NULL)
2137                         toggle_video_preview(lc,FALSE);
2138         }
2139
2140         linphone_core_run_hooks(lc);
2141         linphone_core_do_plugin_tasks(lc);
2142
2143         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
2144             (curtime-lc->netup_time)>3){
2145                 linphone_core_send_initial_subscribes(lc);
2146                 lc->initial_subscribes_sent=TRUE;
2147         }
2148
2149         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
2150                 lp_config_sync(lc->config);
2151         }
2152 }
2153
2154 /**
2155  * Interpret a call destination as supplied by the user, and returns a fully qualified
2156  * LinphoneAddress.
2157  *
2158  * @ingroup call_control
2159  *
2160  * A sip address should look like DisplayName <sip:username@domain:port> .
2161  * Basically this function performs the following tasks
2162  * - if a phone number is entered, prepend country prefix of the default proxy
2163  *   configuration, eventually escape the '+' by 00.
2164  * - if no domain part is supplied, append the domain name of the default proxy
2165  * - if no sip: is present, prepend it
2166  *
2167  * The result is a syntaxically correct SIP address.
2168 **/
2169
2170 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
2171         enum_lookup_res_t *enumres=NULL;
2172         char *enum_domain=NULL;
2173         LinphoneProxyConfig *proxy=lc->default_proxy;;
2174         char *tmpurl;
2175         LinphoneAddress *uri;
2176
2177         if (is_enum(url,&enum_domain)){
2178                 if (lc->vtable.display_status!=NULL)
2179                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
2180                 if (enum_lookup(enum_domain,&enumres)<0){
2181                         if (lc->vtable.display_status!=NULL)
2182                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
2183                         ms_free(enum_domain);
2184                         return NULL;
2185                 }
2186                 ms_free(enum_domain);
2187                 tmpurl=enumres->sip_address[0];
2188                 uri=linphone_address_new(tmpurl);
2189                 enum_lookup_res_free(enumres);
2190                 return uri;
2191         }
2192         /* check if we have a "sip:" */
2193         if (strstr(url,"sip:")==NULL){
2194                 /* this doesn't look like a true sip uri */
2195                 if (strchr(url,'@')!=NULL){
2196                         /* seems like sip: is missing !*/
2197                         tmpurl=ms_strdup_printf("sip:%s",url);
2198                         uri=linphone_address_new(tmpurl);
2199                         ms_free(tmpurl);
2200                         if (uri){
2201                                 return uri;
2202                         }
2203                 }
2204
2205                 if (proxy!=NULL){
2206                         /* append the proxy domain suffix */
2207                         const char *identity=linphone_proxy_config_get_identity(proxy);
2208                         char normalized_username[128];
2209                         uri=linphone_address_new(identity);
2210                         if (uri==NULL){
2211                                 return NULL;
2212                         }
2213                         linphone_address_set_display_name(uri,NULL);
2214                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2215                                                                 sizeof(normalized_username));
2216                         linphone_address_set_username(uri,normalized_username);
2217                         return uri;
2218                 }else return NULL;
2219         }
2220         uri=linphone_address_new(url);
2221         if (uri!=NULL){
2222                 return uri;
2223         }
2224         /* else we could not do anything with url given by user, so display an error */
2225         if (lc->vtable.display_warning!=NULL){
2226                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2227         }
2228         return NULL;
2229 }
2230
2231 /**
2232  * Returns the default identity SIP address.
2233  *
2234  * @ingroup proxies
2235  * This is an helper function:
2236  *
2237  * If no default proxy is set, this will return the primary contact (
2238  * see linphone_core_get_primary_contact() ). If a default proxy is set
2239  * it returns the registered identity on the proxy.
2240 **/
2241 const char * linphone_core_get_identity(LinphoneCore *lc){
2242         LinphoneProxyConfig *proxy=NULL;
2243         const char *from;
2244         linphone_core_get_default_proxy(lc,&proxy);
2245         if (proxy!=NULL) {
2246                 from=linphone_proxy_config_get_identity(proxy);
2247         }else from=linphone_core_get_primary_contact(lc);
2248         return from;
2249 }
2250
2251 const char * linphone_core_get_route(LinphoneCore *lc){
2252         LinphoneProxyConfig *proxy=NULL;
2253         const char *route=NULL;
2254         linphone_core_get_default_proxy(lc,&proxy);
2255         if (proxy!=NULL) {
2256                 route=linphone_proxy_config_get_route(proxy);
2257         }
2258         return route;
2259 }
2260
2261 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2262         if (call->refer_pending){
2263                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2264                 LinphoneCall *newcall;
2265                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2266                 cp->referer=call;
2267                 ms_message("Starting new call to refered address %s",call->refer_to);
2268                 call->refer_pending=FALSE;
2269                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2270                 linphone_call_params_destroy(cp);
2271                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2272         }
2273 }
2274
2275 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2276         if (referer->op!=NULL){
2277                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2278         }
2279 }
2280
2281 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2282         const MSList *elem;
2283         LinphoneProxyConfig *found_cfg=NULL;
2284         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2285
2286         /*always prefer the default proxy if it is matching the destination uri*/
2287         if (default_cfg){
2288                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2289                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2290                         return default_cfg;
2291         }
2292
2293         /*otherwise iterate through the other proxy config and return the first matching*/
2294         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2295                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2296                 const char *domain=linphone_proxy_config_get_domain(cfg);
2297                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2298                         found_cfg=cfg;
2299                         break;
2300                 }
2301         }
2302         return found_cfg;
2303 }
2304
2305 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2306         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2307         if (cfg==NULL)
2308                 linphone_core_get_default_proxy (lc,&cfg);
2309         if (cfg!=NULL){
2310                 if (route) *route=linphone_proxy_config_get_route(cfg);
2311                 return linphone_proxy_config_get_identity (cfg);
2312         }
2313         return linphone_core_get_primary_contact (lc);
2314 }
2315
2316 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2317         LinphoneAddress *ctt;
2318         const char *localip=call->localip;
2319
2320         /* first use user's supplied ip address if asked*/
2321         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2322                 ctt=linphone_core_get_primary_contact_parsed(lc);
2323                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2324                         linphone_core_get_nat_address_resolved(lc));
2325         }
2326
2327         /* if already choosed, don't change it */
2328         if (call->op && sal_op_get_contact(call->op)!=NULL){
2329                 return NULL;
2330         }
2331         /* if the ping OPTIONS request succeeded use the contact guessed from the
2332          received, rport*/
2333         if (call->ping_op){
2334                 const char *guessed=sal_op_get_contact(call->ping_op);
2335                 if (guessed){
2336                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2337                         return ms_strdup(guessed);
2338                 }
2339         }
2340
2341         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2342         if (dest_proxy && dest_proxy->op){
2343                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2344                 if (fixed_contact) {
2345                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2346                         return ms_strdup(fixed_contact);
2347                 }
2348         }
2349
2350         ctt=linphone_core_get_primary_contact_parsed(lc);
2351
2352         if (ctt!=NULL){
2353                 char *ret;
2354                 /*otherwise use supllied localip*/
2355                 linphone_address_set_domain(ctt,localip);
2356                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2357                 ret=linphone_address_as_string_uri_only(ctt);
2358                 linphone_address_destroy(ctt);
2359                 ms_message("Contact has been fixed using local ip to %s",ret);
2360                 return ret;
2361         }
2362         return NULL;
2363 }
2364
2365 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2366         bool_t ice_ready = FALSE;
2367         bool_t upnp_ready = FALSE;
2368         bool_t ping_ready = FALSE;
2369
2370         if (call->ice_session != NULL) {
2371                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2372         } else {
2373                 ice_ready = TRUE;
2374         }
2375 #ifdef BUILD_UPNP
2376         if (call->upnp_session != NULL) {
2377                 if (linphone_upnp_session_get_state(call->upnp_session) == LinphoneUpnpStateOk) upnp_ready = TRUE;
2378         } else {
2379                 upnp_ready = TRUE;
2380         }
2381 #else
2382         upnp_ready=TRUE;
2383 #endif //BUILD_UPNP
2384         if (call->ping_op != NULL) {
2385                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2386         } else {
2387                 ping_ready = TRUE;
2388         }
2389
2390         if ((ice_ready == TRUE) && (upnp_ready == TRUE) && (ping_ready == TRUE)) {
2391                 return linphone_core_start_invite(lc, call);
2392         }
2393         return 0;
2394 }
2395
2396 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2397         int err;
2398         char *contact;
2399         char *real_url,*barmsg;
2400         char *from;
2401         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2402
2403         /*try to be best-effort in giving real local or routable contact address */
2404         contact=get_fixed_contact(lc,call,dest_proxy);
2405         if (contact){
2406                 sal_op_set_contact(call->op, contact);
2407                 ms_free(contact);
2408         }
2409         linphone_core_stop_dtmf_stream(lc);
2410         linphone_call_init_media_streams(call);
2411         if (lc->ringstream==NULL)
2412                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2413         linphone_call_make_local_media_description(lc,call);
2414         if (!lc->sip_conf.sdp_200_ack){
2415                 call->media_pending=TRUE;
2416                 sal_call_set_local_media_description(call->op,call->localdesc);
2417         }
2418         real_url=linphone_address_as_string(call->log->to);
2419         from=linphone_address_as_string(call->log->from);
2420         err=sal_call(call->op,from,real_url);
2421         call->log->call_id=ms_strdup(sal_op_get_call_id(call->op)); /*must be known at that time*/
2422
2423         if (lc->sip_conf.sdp_200_ack){
2424                 call->media_pending=TRUE;
2425                 sal_call_set_local_media_description(call->op,call->localdesc);
2426         }
2427         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2428         if (lc->vtable.display_status!=NULL)
2429                 lc->vtable.display_status(lc,barmsg);
2430         ms_free(barmsg);
2431
2432         if (err<0){
2433                 if (lc->vtable.display_status!=NULL)
2434                         lc->vtable.display_status(lc,_("Could not call"));
2435                 linphone_call_stop_media_streams(call);
2436                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2437         }else {
2438                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2439         }
2440         ms_free(real_url);
2441         ms_free(from);
2442         return err;
2443 }
2444
2445 /**
2446  * Initiates an outgoing call
2447  *
2448  * @ingroup call_control
2449  * @param lc the LinphoneCore object
2450  * @param url the destination of the call (sip address, or phone number).
2451  *
2452  * The application doesn't own a reference to the returned LinphoneCall object.
2453  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2454  *
2455  * @return a LinphoneCall object or NULL in case of failure
2456 **/
2457 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2458         LinphoneCall *call;
2459         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2460         p->has_video &= !!lc->video_policy.automatically_initiate;
2461         call=linphone_core_invite_with_params(lc,url,p);
2462         linphone_call_params_destroy(p);
2463         return call;
2464 }
2465
2466
2467 /**
2468  * Initiates an outgoing call according to supplied call parameters
2469  *
2470  * @ingroup call_control
2471  * @param lc the LinphoneCore object
2472  * @param url the destination of the call (sip address, or phone number).
2473  * @param p call parameters
2474  *
2475  * The application doesn't own a reference to the returned LinphoneCall object.
2476  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2477  *
2478  * @return a LinphoneCall object or NULL in case of failure
2479 **/
2480 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2481         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2482         if (addr){
2483                 LinphoneCall *call;
2484                 call=linphone_core_invite_address_with_params(lc,addr,p);
2485                 linphone_address_destroy(addr);
2486                 return call;
2487         }
2488         return NULL;
2489 }
2490
2491 /**
2492  * Initiates an outgoing call given a destination LinphoneAddress
2493  *
2494  * @ingroup call_control
2495  * @param lc the LinphoneCore object
2496  * @param addr the destination of the call (sip address).
2497  *
2498  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2499  * created by linphone_core_interpret_url().
2500  * The application doesn't own a reference to the returned LinphoneCall object.
2501  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2502  *
2503  * @return a LinphoneCall object or NULL in case of failure
2504 **/
2505 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2506         LinphoneCall *call;
2507         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2508         p->has_video &= !!lc->video_policy.automatically_initiate;
2509         call=linphone_core_invite_address_with_params (lc,addr,p);
2510         linphone_call_params_destroy(p);
2511         return call;
2512 }
2513
2514
2515 /**
2516  * Initiates an outgoing call given a destination LinphoneAddress
2517  *
2518  * @ingroup call_control
2519  * @param lc the LinphoneCore object
2520  * @param addr the destination of the call (sip address).
2521         @param params call parameters
2522  *
2523  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2524  * created by linphone_core_interpret_url().
2525  * The application doesn't own a reference to the returned LinphoneCall object.
2526  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2527  *
2528  * @return a LinphoneCall object or NULL in case of failure
2529 **/
2530 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2531 {
2532         const char *route=NULL;
2533         const char *from=NULL;
2534         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2535         LinphoneAddress *parsed_url2=NULL;
2536         char *real_url=NULL;
2537         LinphoneCall *call;
2538         bool_t defer = FALSE;
2539
2540         linphone_core_preempt_sound_resources(lc);
2541
2542         if(!linphone_core_can_we_add_call(lc)){
2543                 if (lc->vtable.display_warning)
2544                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2545                 return NULL;
2546         }
2547         linphone_core_get_default_proxy(lc,&proxy);
2548         route=linphone_core_get_route(lc);
2549
2550         real_url=linphone_address_as_string(addr);
2551         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2552
2553         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2554                 ms_message("Overriding default proxy setting for this call:");
2555                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2556         }
2557
2558         if (dest_proxy!=NULL)
2559                 from=linphone_proxy_config_get_identity(dest_proxy);
2560         else if (proxy!=NULL)
2561                 from=linphone_proxy_config_get_identity(proxy);
2562
2563         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2564         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2565
2566         parsed_url2=linphone_address_new(from);
2567
2568         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2569         call->dest_proxy=dest_proxy;
2570         sal_op_set_route(call->op,route);
2571
2572         if(linphone_core_add_call(lc,call)!= 0)
2573         {
2574                 ms_warning("we had a problem in adding the call into the invite ... weird");
2575                 linphone_call_unref(call);
2576                 return NULL;
2577         }
2578         /* this call becomes now the current one*/
2579         lc->current_call=call;
2580         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2581         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2582                 /* Defer the start of the call after the ICE gathering process. */
2583                 linphone_call_init_media_streams(call);
2584                 linphone_call_start_media_streams_for_ice_gathering(call);
2585                 call->start_time=time(NULL);
2586                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2587                         /* Ice candidates gathering failed, proceed with the call anyway. */
2588                         linphone_call_delete_ice_session(call);
2589                         linphone_call_stop_media_streams_for_ice_gathering(call);
2590                 } else {
2591                         defer = TRUE;
2592                 }
2593         }
2594         else if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseUpnp) {
2595 #ifdef BUILD_UPNP
2596                 linphone_call_init_media_streams(call);
2597                 call->start_time=time(NULL);
2598                 if (linphone_core_update_upnp(lc,call)<0) {
2599                         /* uPnP port mappings failed, proceed with the call anyway. */
2600                         linphone_call_delete_upnp_session(call);
2601                 } else {
2602                         defer = TRUE;
2603                 }
2604 #endif //BUILD_UPNP
2605         }
2606
2607         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2608                 /*defer the start of the call after the OPTIONS ping*/
2609                 call->ping_replied=FALSE;
2610                 call->ping_op=sal_op_new(lc->sal);
2611                 sal_ping(call->ping_op,from,real_url);
2612                 sal_op_set_user_pointer(call->ping_op,call);
2613                 call->start_time=time(NULL);
2614         }else{
2615                 if (defer==FALSE) linphone_core_start_invite(lc,call);
2616         }
2617
2618         if (real_url!=NULL) ms_free(real_url);
2619         return call;
2620 }
2621
2622 /**
2623  * Performs a simple call transfer to the specified destination.
2624  *
2625  * @ingroup call_control
2626  * The remote endpoint is expected to issue a new call to the specified destination.
2627  * The current call remains active and thus can be later paused or terminated.
2628 **/
2629 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2630 {
2631         char *real_url=NULL;
2632         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2633
2634         if (!real_parsed_url){
2635                 /* bad url */
2636                 return -1;
2637         }
2638         if (call==NULL){
2639                 ms_warning("No established call to refer.");
2640                 return -1;
2641         }
2642         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2643         real_url=linphone_address_as_string (real_parsed_url);
2644         sal_call_refer(call->op,real_url);
2645         ms_free(real_url);
2646         linphone_address_destroy(real_parsed_url);
2647         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2648         return 0;
2649 }
2650
2651 /**
2652  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2653  * @param lc linphone core object
2654  * @param call a running call you want to transfer
2655  * @param dest a running call whose remote person will receive the transfer
2656  *
2657  * @ingroup call_control
2658  *
2659  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2660  * The destination call is a call previously established to introduce the transfered person.
2661  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2662  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2663  * close the call with us (the 'dest' call).
2664 **/
2665 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2666         int result = sal_call_refer_with_replaces (call->op,dest->op);
2667         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2668         return result;
2669 }
2670
2671 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2672         LinphoneCall *call = linphone_core_get_current_call(lc);
2673         if(call != NULL)
2674         {
2675                 if(call->dir==LinphoneCallIncoming
2676                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2677                         return TRUE;
2678         }
2679         return FALSE;
2680 }
2681
2682 bool_t linphone_core_incompatible_security(LinphoneCore *lc, SalMediaDescription *md){
2683         if (linphone_core_is_media_encryption_mandatory(lc) && linphone_core_get_media_encryption(lc)==LinphoneMediaEncryptionSRTP){
2684                 int i;
2685                 for(i=0;i<md->n_active_streams;i++){
2686                         SalStreamDescription *sd=&md->streams[i];
2687                         if (sd->proto!=SalProtoRtpSavp){
2688                                 return TRUE;
2689                         }
2690                 }
2691         }
2692         return FALSE;
2693 }
2694
2695 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2696         char *barmesg;
2697         char *tmp;
2698         LinphoneAddress *from_parsed;
2699         SalMediaDescription *md;
2700         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2701         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2702
2703         linphone_call_make_local_media_description(lc,call);
2704         sal_call_set_local_media_description(call->op,call->localdesc);
2705         md=sal_call_get_final_media_description(call->op);
2706         if (md){
2707                 if (sal_media_description_empty(md) || linphone_core_incompatible_security(lc,md)){
2708                         sal_call_decline(call->op,SalReasonMedia,NULL);
2709                         linphone_call_unref(call);
2710                         return;
2711                 }
2712         }
2713
2714         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2715         linphone_address_clean(from_parsed);
2716         tmp=linphone_address_as_string(from_parsed);
2717         linphone_address_destroy(from_parsed);
2718         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2719             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2720         if (lc->vtable.show) lc->vtable.show(lc);
2721         if (lc->vtable.display_status)
2722             lc->vtable.display_status(lc,barmesg);
2723
2724         /* play the ring if this is the only call*/
2725         if (ms_list_size(lc->calls)==1){
2726                 lc->current_call=call;
2727                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2728                         ring_stop(lc->ringstream);
2729                         lc->ringstream=NULL;
2730                         lc->dmfs_playing_start_time=0;
2731                 }
2732                 if (lc->sound_conf.ring_sndcard!=NULL){
2733                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2734                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2735                                 ms_message("Starting local ring...");
2736                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2737                         }
2738                         else
2739                         {
2740                                 ms_message("the local ring is already started");
2741                         }
2742                 }
2743         }else{
2744                 /* else play a tone within the context of the current call */
2745                 call->ringing_beep=TRUE;
2746                 linphone_core_play_tone(lc);
2747         }
2748
2749         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2750
2751         if (call->state==LinphoneCallIncomingReceived){
2752                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2753
2754                 if (propose_early_media || ringback_tone!=NULL){
2755                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2756                         md=sal_call_get_final_media_description(call->op);
2757                         linphone_core_update_streams(lc,call,md);
2758                 }
2759                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2760                         linphone_core_accept_call(lc,call);
2761                 }
2762         }
2763         linphone_call_unref(call);
2764
2765         ms_free(barmesg);
2766         ms_free(tmp);
2767 }
2768
2769 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2770         const char *subject;
2771         call->camera_active=call->params.has_video;
2772         if (call->ice_session != NULL) {
2773                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2774         }
2775 #ifdef BUILD_UPNP
2776         if(call->upnp_session != NULL) {
2777                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2778         }
2779 #endif //BUILD_UPNP
2780         if (call->params.in_conference){
2781                 subject="Conference";
2782         }else{
2783                 subject="Media change";
2784         }
2785         if (lc->vtable.display_status)
2786                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2787         sal_call_set_local_media_description (call->op,call->localdesc);
2788         return sal_call_update(call->op,subject);
2789 }
2790
2791 /**
2792  * @ingroup call_control
2793  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2794  *
2795  * In this version this is limited to the following use cases:
2796  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2797  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2798  *
2799  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2800  * @param lc the core
2801  * @param call the call to be updated
2802  * @param params the new call parameters to use. (may be NULL)
2803  * @return 0 if successful, -1 otherwise.
2804 **/
2805 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2806         int err=0;
2807         if (params!=NULL){
2808                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2809 #ifdef VIDEO_ENABLED
2810                 bool_t has_video = call->params.has_video;
2811
2812                 // Video removing
2813                 if((call->videostream != NULL) && !params->has_video) {
2814                         if (call->ice_session != NULL) {
2815                                 ice_session_remove_check_list(call->ice_session, call->videostream->ms.ice_check_list);
2816                                 call->videostream->ms.ice_check_list = NULL;
2817                         }
2818 #ifdef BUILD_UPNP
2819                         if(call->upnp_session != NULL) {
2820                                 if (linphone_core_update_upnp(lc, call)<0) {
2821                                         /* uPnP port mappings failed, proceed with the call anyway. */
2822                                         linphone_call_delete_upnp_session(call);
2823                                 }
2824                         }
2825 #endif //BUILD_UPNP
2826                 }
2827
2828                 call->params = *params;
2829                 linphone_call_make_local_media_description(lc, call);
2830
2831                 // Video adding
2832                 if (!has_video && call->params.has_video) {
2833                         if (call->ice_session != NULL) {
2834                                 /* Defer call update until the ICE candidates gathering process has finished. */
2835                                 ms_message("Defer call update to gather ICE candidates");
2836                                 linphone_call_init_video_stream(call);
2837                                 video_stream_prepare_video(call->videostream);
2838                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2839                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2840                                         linphone_call_delete_ice_session(call);
2841                                 } else {
2842                                         return err;
2843                                 }
2844                         }
2845 #ifdef BUILD_UPNP
2846                         if(call->upnp_session != NULL) {
2847                                 ms_message("Defer call update to add uPnP port mappings");
2848                                 linphone_call_init_video_stream(call);
2849                                 video_stream_prepare_video(call->videostream);
2850                                 if (linphone_core_update_upnp(lc, call)<0) {
2851                                         /* uPnP port mappings failed, proceed with the call anyway. */
2852                                         linphone_call_delete_upnp_session(call);
2853                                 } else {
2854                                         return err;
2855                                 }
2856                         }
2857 #endif //BUILD_UPNP
2858                 }
2859 #endif
2860                 err = linphone_core_start_update_call(lc, call);
2861         }else{
2862 #ifdef VIDEO_ENABLED
2863                 if (call->videostream!=NULL){
2864                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2865                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2866                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2867                         }else video_stream_update_video_params(call->videostream);
2868                 }
2869 #endif
2870         }
2871
2872         return err;
2873 }
2874
2875 /**
2876  * @ingroup call_control
2877  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2878  *
2879  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2880  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2881  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2882  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2883  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2884  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2885  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2886  *
2887  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2888 **/
2889 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2890         if (call->state==LinphoneCallUpdatedByRemote){
2891                 call->defer_update=TRUE;
2892                 return 0;
2893         }
2894         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2895         return -1;
2896 }
2897
2898 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2899         SalMediaDescription *md;
2900         if (call->ice_session != NULL) {
2901                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2902                         /* Defer the sending of the answer until there are no losing pairs left. */
2903                         return 0;
2904                 }
2905                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2906         }
2907 #ifdef BUILD_UPNP
2908         if(call->upnp_session != NULL) {
2909                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2910         }
2911 #endif //BUILD_UPNP
2912         linphone_call_update_remote_session_id_and_ver(call);
2913         sal_call_set_local_media_description(call->op,call->localdesc);
2914         sal_call_accept(call->op);
2915         md=sal_call_get_final_media_description(call->op);
2916         if (md && !sal_media_description_empty(md))
2917                 linphone_core_update_streams (lc,call,md);
2918         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2919         return 0;
2920 }
2921
2922 /**
2923  * @ingroup call_control
2924  * Accept call modifications initiated by other end.
2925  *
2926  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2927  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2928  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2929  * requested by the other party, such as whether a video stream is requested.
2930  *
2931  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2932  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2933  * If params is not NULL, then the update will be accepted according to the parameters passed.
2934  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2935  * (see linphone_call_params_enable_video()).
2936  * @param lc the linphone core object.
2937  * @param call the LinphoneCall object
2938  * @param params a LinphoneCallParams object describing the call parameters to accept.
2939  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2940 **/
2941 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2942         SalMediaDescription *remote_desc;
2943         bool_t keep_sdp_version;
2944 #ifdef VIDEO_ENABLED
2945         bool_t old_has_video = call->params.has_video;
2946 #endif
2947         if (call->state!=LinphoneCallUpdatedByRemote){
2948                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2949                          linphone_call_state_to_string(call->state));
2950                 return -1;
2951         }
2952         remote_desc = sal_call_get_remote_media_description(call->op);
2953         keep_sdp_version = lp_config_get_int(lc->config, "sip", "keep_sdp_version", 0);
2954         if (keep_sdp_version &&(remote_desc->session_id == call->remote_session_id) && (remote_desc->session_ver == call->remote_session_ver)) {
2955                 /* Remote has sent an INVITE with the same SDP as before, so send a 200 OK with the same SDP as before. */
2956                 ms_warning("SDP version has not changed, send same SDP as before.");
2957                 sal_call_accept(call->op);
2958                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2959                 return 0;
2960         }
2961         if (params==NULL){
2962                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2963         }else
2964                 call->params=*params;
2965
2966         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2967                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2968                 call->params.has_video=FALSE;
2969         }
2970         if (call->current_params.in_conference) {
2971                 ms_warning("Video isn't supported in conference");
2972                 call->params.has_video = FALSE;
2973         }
2974         call->params.has_video &= linphone_core_media_description_contains_video_stream(remote_desc);
2975         call->camera_active=call->params.has_video;
2976         linphone_call_make_local_media_description(lc,call);
2977         if (call->ice_session != NULL) {
2978                 linphone_core_update_ice_from_remote_media_description(call, remote_desc);
2979 #ifdef VIDEO_ENABLED
2980                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2981                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2982                                 linphone_call_init_video_stream(call);
2983                                 video_stream_prepare_video(call->videostream);
2984                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2985                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2986                                         linphone_call_delete_ice_session(call);
2987                                 } else return 0;
2988                         }
2989                 }
2990 #endif //VIDEO_ENABLED
2991         }
2992
2993 #ifdef BUILD_UPNP
2994         if(call->upnp_session != NULL) {
2995                 linphone_core_update_upnp_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2996 #ifdef VIDEO_ENABLED
2997                 if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2998                         linphone_call_init_video_stream(call);
2999                         video_stream_prepare_video(call->videostream);
3000                         if (linphone_core_update_upnp(lc, call)<0) {
3001                                 /* uPnP update failed, proceed with the call anyway. */
3002                                 linphone_call_delete_upnp_session(call);
3003                         } else return 0;
3004                 }
3005 #endif //VIDEO_ENABLED
3006         }
3007 #endif //BUILD_UPNP
3008
3009         linphone_core_start_accept_call_update(lc, call);
3010         return 0;
3011 }
3012
3013 /**
3014  * Accept an incoming call.
3015  *
3016  * @ingroup call_control
3017  * Basically the application is notified of incoming calls within the
3018  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3019  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3020  * The application can later accept the call using this method.
3021  * @param lc the LinphoneCore object
3022  * @param call the LinphoneCall object representing the call to be answered.
3023  *
3024 **/
3025 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
3026         return linphone_core_accept_call_with_params(lc,call,NULL);
3027 }
3028
3029 /**
3030  * Accept an incoming call, with parameters.
3031  *
3032  * @ingroup call_control
3033  * Basically the application is notified of incoming calls within the
3034  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
3035  * a LinphoneCallIncoming event with the associated LinphoneCall object.
3036  * The application can later accept the call using
3037  * this method.
3038  * @param lc the LinphoneCore object
3039  * @param call the LinphoneCall object representing the call to be answered.
3040  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
3041  *
3042 **/
3043 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
3044 {
3045         LinphoneProxyConfig *cfg=NULL;
3046         const char *contact=NULL;
3047         SalOp *replaced;
3048         SalMediaDescription *new_md;
3049         bool_t was_ringing=FALSE;
3050
3051         if (call==NULL){
3052                 //if just one call is present answer the only one ...
3053                 if(linphone_core_get_calls_nb (lc) != 1)
3054                         return -1;
3055                 else
3056                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
3057         }
3058
3059         if (call->state==LinphoneCallConnected){
3060                 /*call already accepted*/
3061                 return -1;
3062         }
3063
3064         /* check if this call is supposed to replace an already running one*/
3065         replaced=sal_call_get_replaces(call->op);
3066         if (replaced){
3067                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
3068                 if (rc){
3069                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
3070                                    call,rc);
3071                         linphone_core_terminate_call(lc,rc);
3072                 }
3073         }
3074
3075         if (lc->current_call!=call){
3076                 linphone_core_preempt_sound_resources(lc);
3077         }
3078
3079         /*stop ringing */
3080         if (lc->ringstream!=NULL) {
3081                 ms_message("stop ringing");
3082                 ring_stop(lc->ringstream);
3083                 ms_message("ring stopped");
3084                 lc->ringstream=NULL;
3085                 was_ringing=TRUE;
3086         }
3087         if (call->ringing_beep){
3088                 linphone_core_stop_dtmf(lc);
3089                 call->ringing_beep=FALSE;
3090         }
3091
3092         linphone_core_get_default_proxy(lc,&cfg);
3093         call->dest_proxy=cfg;
3094         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
3095
3096         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
3097                 ms_message("Overriding default proxy setting for this call:");
3098                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
3099         }
3100         /*try to be best-effort in giving real local or routable contact address*/
3101         contact=get_fixed_contact(lc,call,call->dest_proxy);
3102         if (contact)
3103                 sal_op_set_contact(call->op,contact);
3104
3105         if (params){
3106                 const SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
3107                 _linphone_call_params_copy(&call->params,params);
3108                 // There might not be a md if the INVITE was lacking an SDP
3109                 // In this case we use the parameters as is.
3110                 if (md) call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
3111                 call->camera_active=call->params.has_video;
3112                 linphone_call_make_local_media_description(lc,call);
3113                 sal_call_set_local_media_description(call->op,call->localdesc);
3114         }
3115
3116         if (call->audiostream==NULL)
3117                 linphone_call_init_media_streams(call);
3118         if (!was_ringing && call->audiostream->ms.ticker==NULL){
3119                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
3120         }
3121
3122         linphone_call_update_remote_session_id_and_ver(call);
3123         sal_call_accept(call->op);
3124         if (lc->vtable.display_status!=NULL)
3125                 lc->vtable.display_status(lc,_("Connected."));
3126         lc->current_call=call;
3127         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
3128         new_md=sal_call_get_final_media_description(call->op);
3129         linphone_core_update_streams(lc, call, new_md);
3130         if (new_md){
3131                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
3132         }else call->media_pending=TRUE;
3133
3134         ms_message("call answered.");
3135         return 0;
3136 }
3137
3138 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
3139         sal_call_terminate(call->op);
3140
3141         /*stop ringing*/
3142         if (lc->ringstream!=NULL) {
3143                 ring_stop(lc->ringstream);
3144                 lc->ringstream=NULL;
3145         }
3146         linphone_call_stop_media_streams(call);
3147
3148 #ifdef BUILD_UPNP
3149         linphone_call_delete_upnp_session(call);
3150 #endif //BUILD_UPNP
3151
3152         if (lc->vtable.display_status!=NULL)
3153                 lc->vtable.display_status(lc,_("Call aborted") );
3154         linphone_call_set_state(call,LinphoneCallError,error);
3155         return 0;
3156 }
3157
3158 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
3159         if (call->state==LinphoneCallIncomingReceived){
3160                 if (call->reason!=LinphoneReasonNotAnswered)
3161                         call->reason=LinphoneReasonDeclined;
3162         }
3163         /*stop ringing*/
3164         if (lc->ringstream!=NULL) {
3165                 ring_stop(lc->ringstream);
3166                 lc->ringstream=NULL;
3167         }
3168
3169         linphone_call_stop_media_streams(call);
3170
3171 #ifdef BUILD_UPNP
3172         linphone_call_delete_upnp_session(call);
3173 #endif //BUILD_UPNP
3174
3175         if (lc->vtable.display_status!=NULL)
3176                 lc->vtable.display_status(lc,_("Call ended") );
3177         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
3178 }
3179
3180 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
3181         if (call->state==LinphoneCallIncomingReceived){
3182                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
3183                 call->reason=LinphoneReasonDeclined;
3184                 terminate_call(lc,call);
3185         }else{
3186                 ms_error("Bad state for call redirection.");
3187                 return -1;
3188     }
3189         return 0;
3190 }
3191
3192
3193 /**
3194  * Terminates a call.
3195  *
3196  * @ingroup call_control
3197  * @param lc the LinphoneCore
3198  * @param the_call the LinphoneCall object representing the call to be terminated.
3199 **/
3200 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
3201 {
3202         LinphoneCall *call;
3203         if (the_call == NULL){
3204                 call = linphone_core_get_current_call(lc);
3205                 if (ms_list_size(lc->calls)==1){
3206                         call=(LinphoneCall*)lc->calls->data;
3207                 }else{
3208                         ms_warning("No unique call to terminate !");
3209                         return -1;
3210                 }
3211         }
3212         else
3213         {
3214                 call = the_call;
3215         }
3216         sal_call_terminate(call->op);
3217         terminate_call(lc,call);
3218         return 0;
3219 }
3220
3221 /**
3222  * Decline a pending incoming call, with a reason.
3223  *
3224  * @ingroup call_control
3225  *
3226  * @param lc the linphone core
3227  * @param call the LinphoneCall, must be in the IncomingReceived state.
3228  * @param reason the reason for rejecting the call: LinphoneReasonDeclined or LinphoneReasonBusy
3229 **/
3230 int linphone_core_decline_call(LinphoneCore *lc, LinphoneCall * call, LinphoneReason reason){
3231         SalReason sal_reason=SalReasonUnknown;
3232         if (call->state!=LinphoneCallIncomingReceived && call->state!=LinphoneCallIncomingEarlyMedia){
3233                 ms_error("linphone_core_decline_call(): Cannot decline a call that is in state %s",linphone_call_state_to_string(call->state));
3234                 return -1;
3235         }
3236         switch(reason){
3237                 case LinphoneReasonDeclined:
3238                         sal_reason=SalReasonDeclined;
3239                 break;
3240                 case LinphoneReasonBusy:
3241                         sal_reason=SalReasonBusy;
3242                 break;
3243                 default:
3244                         ms_error("linphone_core_decline_call(): unsupported reason %s",linphone_reason_to_string(reason));
3245                         return -1;
3246                 break;
3247         }
3248         sal_call_decline(call->op,sal_reason,NULL);
3249         terminate_call(lc,call);
3250         return 0;
3251 }
3252
3253 /**
3254  * Terminates all the calls.
3255  *
3256  * @ingroup call_control
3257  * @param lc The LinphoneCore
3258 **/
3259 int linphone_core_terminate_all_calls(LinphoneCore *lc){
3260         MSList *calls=lc->calls;
3261         while(calls) {
3262                 LinphoneCall *c=(LinphoneCall*)calls->data;
3263                 calls=calls->next;
3264                 linphone_core_terminate_call(lc,c);
3265         }
3266         return 0;
3267 }
3268
3269 /**
3270  * Returns the current list of calls.
3271  *
3272  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
3273  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
3274  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
3275  *
3276  * @ingroup call_control
3277 **/
3278 const MSList *linphone_core_get_calls(LinphoneCore *lc)
3279 {
3280         return lc->calls;
3281 }
3282
3283 /**
3284  * Returns TRUE if there is a call running.
3285  *
3286  * @ingroup call_control
3287 **/
3288 bool_t linphone_core_in_call(const LinphoneCore *lc){
3289         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
3290 }
3291
3292 /**
3293  * Returns The _LinphoneCall struct of the current call if one is in call
3294  *
3295  * @ingroup call_control
3296 **/
3297 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
3298 {
3299         return lc->current_call;
3300 }
3301
3302 /**
3303  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
3304  * this file will be played to the remote user.
3305  *
3306  * @ingroup call_control
3307 **/
3308 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
3309 {
3310         const char *subject=NULL;
3311
3312         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
3313                 ms_warning("Cannot pause this call, it is not active.");
3314                 return -1;
3315         }
3316         linphone_call_make_local_media_description(lc,call);
3317         if (call->ice_session != NULL) {
3318                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3319         }
3320 #ifdef BUILD_UPNP
3321         if(call->upnp_session != NULL) {
3322                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3323         }
3324 #endif //BUILD_UPNP
3325         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
3326                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3327                 subject="Call on hold";
3328         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
3329                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3330                 subject="Call on hold for me too";
3331         }else{
3332                 ms_error("No reason to pause this call, it is already paused or inactive.");
3333                 return -1;
3334         }
3335         sal_call_set_local_media_description(call->op,call->localdesc);
3336         if (sal_call_update(call->op,subject) != 0){
3337                 if (lc->vtable.display_warning)
3338                         lc->vtable.display_warning(lc,_("Could not pause the call"));
3339         }
3340         lc->current_call=NULL;
3341         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
3342         if (lc->vtable.display_status)
3343                 lc->vtable.display_status(lc,_("Pausing the current call..."));
3344         if (call->audiostream || call->videostream)
3345                 linphone_call_stop_media_streams (call);
3346         return 0;
3347 }
3348
3349 /**
3350  * Pause all currently running calls.
3351  * @ingroup call_control
3352 **/
3353 int linphone_core_pause_all_calls(LinphoneCore *lc){
3354         const MSList *elem;
3355         for(elem=lc->calls;elem!=NULL;elem=elem->next){
3356                 LinphoneCall *call=(LinphoneCall *)elem->data;
3357                 LinphoneCallState cs=linphone_call_get_state(call);
3358                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3359                         linphone_core_pause_call(lc,call);
3360                 }
3361         }
3362         return 0;
3363 }
3364
3365 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3366         LinphoneCall *current_call;
3367         if (linphone_core_is_in_conference(lc)){
3368                 linphone_core_leave_conference(lc);
3369                 return;
3370         }
3371         current_call=linphone_core_get_current_call(lc);
3372         if(current_call != NULL){
3373                 ms_message("Pausing automatically the current call.");
3374                 linphone_core_pause_call(lc,current_call);
3375         }
3376 }
3377
3378 /**
3379  * Resumes the call.
3380  *
3381  * @ingroup call_control
3382 **/
3383 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3384 {
3385         char temp[255]={0};
3386         LinphoneCall *call = the_call;
3387         const char *subject="Call resuming";
3388
3389         if(call->state!=LinphoneCallPaused ){
3390                 ms_warning("we cannot resume a call that has not been established and paused before");
3391                 return -1;
3392         }
3393         if (call->params.in_conference==FALSE){
3394                 linphone_core_preempt_sound_resources(lc);
3395                 ms_message("Resuming call %p",call);
3396         }
3397
3398         /* Stop playing music immediately. If remote side is a conference it
3399          prevents the participants to hear it while the 200OK comes back.*/
3400         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3401
3402         linphone_call_make_local_media_description(lc,the_call);
3403         if (call->ice_session != NULL) {
3404                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3405         }
3406 #ifdef BUILD_UPNP
3407         if(call->upnp_session != NULL) {
3408                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3409         }
3410 #endif //BUILD_UPNP
3411         sal_call_set_local_media_description(call->op,call->localdesc);
3412         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3413         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3414         if(sal_call_update(call->op,subject) != 0){
3415                 return -1;
3416         }
3417         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3418         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3419         if (lc->vtable.display_status)
3420                 lc->vtable.display_status(lc,temp);
3421         return 0;
3422 }
3423
3424 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3425         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3426         return !linphone_address_weak_equal (addr,raddr);
3427 }
3428
3429 /**
3430  * Get the call with the remote_address specified
3431  * @param lc
3432  * @param remote_address
3433  * @return the LinphoneCall of the call if found
3434  *
3435  * @ingroup call_control
3436  */
3437 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3438         LinphoneAddress *raddr=linphone_address_new(remote_address);
3439         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3440         if (elem) return (LinphoneCall*) elem->data;
3441         return NULL;
3442 }
3443
3444 int linphone_core_send_publish(LinphoneCore *lc,
3445                                LinphoneOnlineStatus presence_mode)
3446 {
3447         const MSList *elem;
3448         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3449                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3450                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3451         }
3452         return 0;
3453 }
3454
3455 /**
3456  * Set the incoming call timeout in seconds.
3457  *
3458  * @ingroup call_control
3459  * If an incoming call isn't answered for this timeout period, it is
3460  * automatically declined.
3461 **/
3462 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3463         lc->sip_conf.inc_timeout=seconds;
3464         if (linphone_core_ready(lc)){
3465                 lp_config_set_int(lc->config,"sip","inc_timeout",seconds);
3466         }
3467 }
3468
3469 /**
3470  * Returns the incoming call timeout
3471  *
3472  * @ingroup call_control
3473  * See linphone_core_set_inc_timeout() for details.
3474 **/
3475 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3476         return lc->sip_conf.inc_timeout;
3477 }
3478
3479 /**
3480  * Set the in call timeout in seconds.
3481  *
3482  * @ingroup call_control
3483  * After this timeout period, the call is automatically hangup.
3484 **/
3485 void linphone_core_set_in_call_timeout(LinphoneCore *lc, int seconds){
3486         lc->sip_conf.in_call_timeout=seconds;
3487 }
3488
3489 /**
3490  * Returns the in call timeout
3491  *
3492  * @ingroup call_control
3493  * See linphone_core_set_in_call_timeout() for details.
3494 **/
3495 int linphone_core_get_in_call_timeout(LinphoneCore *lc){
3496         return lc->sip_conf.in_call_timeout;
3497 }
3498
3499 /**
3500  * Returns the delayed timeout
3501  *
3502  * @ingroup call_control
3503  * See linphone_core_set_delayed_timeout() for details.
3504 **/
3505 int linphone_core_get_delayed_timeout(LinphoneCore *lc){
3506         return lc->sip_conf.delayed_timeout;
3507 }
3508
3509 /**
3510  * Set the in delayed timeout in seconds.
3511  *
3512  * @ingroup call_control
3513  * After this timeout period, a delayed call (internal call initialisation or resolution) is resumed.
3514 **/
3515 void linphone_core_set_delayed_timeout(LinphoneCore *lc, int seconds){
3516         lc->sip_conf.delayed_timeout=seconds;
3517 }
3518
3519 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3520                                                                                                         const char *contact,
3521                                                                                                         LinphoneOnlineStatus presence_mode)
3522 {
3523         if (minutes_away>0) lc->minutes_away=minutes_away;
3524
3525         if (lc->alt_contact!=NULL) {
3526                 ms_free(lc->alt_contact);
3527                 lc->alt_contact=NULL;
3528         }
3529         if (contact) lc->alt_contact=ms_strdup(contact);
3530         if (lc->presence_mode!=presence_mode){
3531                 linphone_core_notify_all_friends(lc,presence_mode);
3532                 /*
3533                    Improve the use of all LINPHONE_STATUS available.
3534                    !TODO Do not mix "presence status" with "answer status code"..
3535                    Use correct parameter to follow sip_if_match/sip_etag.
3536                  */
3537                 linphone_core_send_publish(lc,presence_mode);
3538         }
3539         lc->presence_mode=presence_mode;
3540 }
3541
3542 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3543         return lc->presence_mode;
3544 }
3545
3546 /**
3547  * Get playback sound level in 0-100 scale.
3548  *
3549  * @ingroup media_parameters
3550 **/
3551 int linphone_core_get_play_level(LinphoneCore *lc)
3552 {
3553         return lc->sound_conf.play_lev;
3554 }
3555
3556 /**
3557  * Get ring sound level in 0-100 scale
3558  *
3559  * @ingroup media_parameters
3560 **/
3561 int linphone_core_get_ring_level(LinphoneCore *lc)
3562 {
3563         return lc->sound_conf.ring_lev;
3564 }
3565
3566 /**
3567  * Get sound capture level in 0-100 scale
3568  *
3569  * @ingroup media_parameters
3570 **/
3571 int linphone_core_get_rec_level(LinphoneCore *lc){
3572         return lc->sound_conf.rec_lev;
3573 }
3574
3575 /**
3576  * Set sound ring level in 0-100 scale
3577  *
3578  * @ingroup media_parameters
3579 **/
3580 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3581         MSSndCard *sndcard;
3582         lc->sound_conf.ring_lev=level;
3583         sndcard=lc->sound_conf.ring_sndcard;
3584         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3585 }
3586
3587 /**
3588  * Allow to control microphone level:  gain in db
3589  *
3590  * @ingroup media_parameters
3591 **/
3592 void linphone_core_set_mic_gain_db (LinphoneCore *lc, float gaindb){
3593         float gain=gaindb;
3594         LinphoneCall *call=linphone_core_get_current_call (lc);
3595         AudioStream *st;
3596
3597         lc->sound_conf.soft_mic_lev=gaindb;
3598
3599         if (linphone_core_ready(lc)){
3600                 lp_config_set_float(lc->config,"sound","mic_gain_db",lc->sound_conf.soft_mic_lev);
3601         }
3602
3603         if (call==NULL || (st=call->audiostream)==NULL){
3604                 ms_message("linphone_core_set_mic_gain_db(): no active call.");
3605                 return;
3606         }
3607         if (st->volrecv){
3608                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_DB_GAIN,&gain);
3609         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3610 }
3611
3612 /**
3613  * Get microphone gain in db.
3614  *
3615  * @ingroup media_parameters
3616 **/
3617 float linphone_core_get_mic_gain_db(LinphoneCore *lc) {
3618         return lc->sound_conf.soft_mic_lev;
3619 }
3620
3621 /**
3622  * Allow to control play level before entering sound card:  gain in db
3623  *
3624  * @ingroup media_parameters
3625 **/
3626 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3627         float gain=gaindb;
3628         LinphoneCall *call=linphone_core_get_current_call (lc);
3629         AudioStream *st;
3630
3631         lc->sound_conf.soft_play_lev=gaindb;
3632         if (linphone_core_ready(lc)){
3633                 lp_config_set_float(lc->config,"sound","playback_gain_db",lc->sound_conf.soft_play_lev);
3634         }
3635
3636         if (call==NULL || (st=call->audiostream)==NULL){
3637                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3638                 return;
3639         }
3640         if (st->volrecv){
3641                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3642         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3643 }
3644
3645 /**
3646  * Get playback gain in db before entering  sound card.
3647  *
3648  * @ingroup media_parameters
3649 **/
3650 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3651         return lc->sound_conf.soft_play_lev;
3652 }
3653
3654 /**
3655  * Set sound playback level in 0-100 scale
3656  *
3657  * @ingroup media_parameters
3658 **/
3659 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3660         MSSndCard *sndcard;
3661         lc->sound_conf.play_lev=level;
3662         sndcard=lc->sound_conf.play_sndcard;
3663         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3664 }
3665
3666 /**
3667  * Set sound capture level in 0-100 scale
3668  *
3669  * @ingroup media_parameters
3670 **/
3671 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3672 {
3673         MSSndCard *sndcard;
3674         lc->sound_conf.rec_lev=level;
3675         sndcard=lc->sound_conf.capt_sndcard;
3676         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3677 }
3678
3679 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3680         MSSndCard *sndcard=NULL;
3681         if (devid!=NULL){
3682                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3683                 if (sndcard!=NULL &&
3684                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3685                         ms_warning("%s card does not have the %s capability, ignoring.",
3686                                 devid,
3687                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3688                         sndcard=NULL;
3689                 }
3690         }
3691         if (sndcard==NULL) {
3692                 /* get a card that has read+write capabilities */
3693                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3694                 /* otherwise refine to the first card having the right capability*/
3695                 if (sndcard==NULL){
3696                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3697                         for(;elem!=NULL;elem=elem->next){
3698                                 sndcard=(MSSndCard*)elem->data;
3699                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3700                         }
3701                 }
3702                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3703                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3704                         if (elem) sndcard=(MSSndCard*)elem->data;
3705         }
3706         }
3707         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3708         return sndcard;
3709 }
3710
3711 /**
3712  * Returns true if the specified sound device can capture sound.
3713  *
3714  * @ingroup media_parameters
3715  * @param lc The LinphoneCore object
3716  * @param devid the device name as returned by linphone_core_get_sound_devices()
3717 **/
3718 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3719         MSSndCard *sndcard;
3720         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3721         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3722         return FALSE;
3723 }
3724
3725 /**
3726  * Returns true if the specified sound device can play sound.
3727  *
3728  * @ingroup media_parameters
3729  * @param lc The LinphoneCore object
3730  * @param devid the device name as returned by linphone_core_get_sound_devices()
3731 **/
3732 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3733         MSSndCard *sndcard;
3734         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3735         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3736         return FALSE;
3737 }
3738
3739 /**
3740  * Sets the sound device used for ringing.
3741  *
3742  * @ingroup media_parameters
3743  * @param lc The LinphoneCore object
3744  * @param devid the device name as returned by linphone_core_get_sound_devices()
3745 **/
3746 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3747         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3748         lc->sound_conf.ring_sndcard=card;
3749         if (card && linphone_core_ready(lc))
3750                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3751         return 0;
3752 }
3753
3754 /**
3755  * Sets the sound device used for playback.
3756  *
3757  * @ingroup media_parameters
3758  * @param lc The LinphoneCore object
3759  * @param devid the device name as returned by linphone_core_get_sound_devices()
3760 **/
3761 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3762         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3763         lc->sound_conf.play_sndcard=card;
3764         if (card &&  linphone_core_ready(lc))
3765                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3766         return 0;
3767 }
3768
3769 /**
3770  * Sets the sound device used for capture.
3771  *
3772  * @ingroup media_parameters
3773  * @param lc The LinphoneCore object
3774  * @param devid the device name as returned by linphone_core_get_sound_devices()
3775 **/
3776 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3777         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3778         lc->sound_conf.capt_sndcard=card;
3779         if (card &&  linphone_core_ready(lc))
3780                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3781         return 0;
3782 }
3783
3784 /**
3785  * Returns the name of the currently assigned sound device for ringing.
3786  *
3787  * @ingroup media_parameters
3788  * @param lc The LinphoneCore object
3789 **/
3790 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3791 {
3792         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3793         return NULL;
3794 }
3795
3796 /**
3797  * Returns the name of the currently assigned sound device for playback.
3798  *
3799  * @ingroup media_parameters
3800  * @param lc The LinphoneCore object
3801 **/
3802 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3803 {
3804         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3805 }
3806
3807 /**
3808  * Returns the name of the currently assigned sound device for capture.
3809  *
3810  * @ingroup media_parameters
3811  * @param lc The LinphoneCore object
3812 **/
3813 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3814 {
3815         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3816 }
3817
3818 /**
3819  * Returns an unmodifiable array of available sound devices.
3820  *
3821  * The array is NULL terminated.
3822  *
3823  * @ingroup media_parameters
3824  * @param lc The LinphoneCore object
3825 **/
3826 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3827         return lc->sound_conf.cards;
3828 }
3829
3830 /**
3831  * Returns an unmodifiable array of available video capture devices.
3832  *
3833  * @ingroup media_parameters
3834  * The array is NULL terminated.
3835 **/
3836 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3837         return lc->video_conf.cams;
3838 }
3839
3840 /**
3841  * Update detection of sound devices.
3842  *
3843  * Use this function when the application is notified of USB plug events, so that
3844  * list of available hardwares for sound playback and capture is updated.
3845  **/
3846 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3847         const char *ringer,*playback,*capture;
3848         ringer=linphone_core_get_ringer_device(lc);
3849         playback=linphone_core_get_playback_device(lc);
3850         capture=linphone_core_get_capture_device(lc);
3851         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3852         build_sound_devices_table(lc);
3853         linphone_core_set_ringer_device(lc,ringer);
3854         linphone_core_set_playback_device(lc,playback);
3855         linphone_core_set_capture_device(lc,capture);
3856 }
3857
3858 /**
3859  * Update detection of camera devices.
3860  *
3861  * Use this function when the application is notified of USB plug events, so that
3862  * list of available hardwares for video capture is updated.
3863  **/
3864 void linphone_core_reload_video_devices(LinphoneCore *lc){
3865         const char *devid;
3866         devid=linphone_core_get_video_device(lc);
3867         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3868         build_video_devices_table(lc);
3869         linphone_core_set_video_device(lc,devid);
3870 }
3871
3872 char linphone_core_get_sound_source(LinphoneCore *lc)
3873 {
3874         return lc->sound_conf.source;
3875 }
3876
3877 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3878 {
3879         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3880         lc->sound_conf.source=source;
3881         if (!sndcard) return;
3882         switch(source){
3883                 case 'm':
3884                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3885                         break;
3886                 case 'l':
3887                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3888                         break;
3889         }
3890
3891 }
3892
3893
3894 /**
3895  * Sets the path to a wav file used for ringing.
3896  *
3897  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3898  * @param lc The LinphoneCore object
3899  *
3900  * @ingroup media_parameters
3901 **/
3902 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3903         if (lc->sound_conf.local_ring!=0){
3904                 ms_free(lc->sound_conf.local_ring);
3905                 lc->sound_conf.local_ring=NULL;
3906         }
3907         if (path)
3908                 lc->sound_conf.local_ring=ms_strdup(path);
3909         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3910                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3911 }
3912
3913 /**
3914  * Returns the path to the wav file used for ringing.
3915  *
3916  * @param lc The LinphoneCore object
3917  * @ingroup media_parameters
3918 **/
3919 const char *linphone_core_get_ring(const LinphoneCore *lc){
3920         return lc->sound_conf.local_ring;
3921 }
3922
3923 /**
3924  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3925  *
3926  * @param path
3927  * @param lc The LinphoneCore object
3928  *
3929  * @ingroup initializing
3930 **/
3931 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3932         sal_set_root_ca(lc->sal, path);
3933 }
3934
3935 /**
3936  * Gets the path to a file or folder containing the trusted root CAs (PEM format)
3937  *
3938  * @param lc The LinphoneCore object
3939  *
3940  * @ingroup initializing
3941 **/
3942 const char *linphone_core_get_root_ca(LinphoneCore *lc){
3943         return sal_get_root_ca(lc->sal);
3944 }
3945
3946 /**
3947  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3948  *
3949  * @ingroup initializing
3950 **/
3951 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3952         sal_verify_server_certificates(lc->sal,yesno);
3953 }
3954
3955 /**
3956  * Specify whether the tls server certificate common name must be verified when connecting to a SIP/TLS server.
3957  * @ingroup initializing
3958 **/
3959 void linphone_core_verify_server_cn(LinphoneCore *lc, bool_t yesno){
3960         sal_verify_server_cn(lc->sal,yesno);
3961 }
3962
3963 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3964         LinphoneCore *lc=(LinphoneCore*)ud;
3965         lc->preview_finished=1;
3966 }
3967
3968 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3969 {
3970         if (lc->ringstream!=0){
3971                 ms_warning("Cannot start ring now,there's already a ring being played");
3972                 return -1;
3973         }
3974         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3975         lc->preview_finished=0;
3976         if (lc->sound_conf.ring_sndcard!=NULL){
3977                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3978                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3979         }
3980         return 0;
3981 }
3982
3983 /**
3984  * Sets the path to a wav file used for ringing back.
3985  *
3986  * Ringback means the ring that is heard when it's ringing at the remote party.
3987  * The file must be a wav 16bit linear.
3988  *
3989  * @ingroup media_parameters
3990 **/
3991 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3992         if (lc->sound_conf.remote_ring!=0){
3993                 ms_free(lc->sound_conf.remote_ring);
3994         }
3995         lc->sound_conf.remote_ring=ms_strdup(path);
3996 }
3997
3998 /**
3999  * Returns the path to the wav file used for ringing back.
4000  *
4001  * @ingroup media_parameters
4002 **/
4003 const char * linphone_core_get_ringback(const LinphoneCore *lc){
4004         return lc->sound_conf.remote_ring;
4005 }
4006
4007 /**
4008  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
4009  *
4010  * @ingroup media_parameters
4011 **/
4012 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
4013         lc->sound_conf.ec=val;
4014         if ( linphone_core_ready(lc))
4015                 lp_config_set_int(lc->config,"sound","echocancellation",val);
4016 }
4017
4018
4019 /**
4020  * Returns TRUE if echo cancellation is enabled.
4021  *
4022  * @ingroup media_parameters
4023 **/
4024 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
4025         return lc->sound_conf.ec;
4026 }
4027
4028 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
4029         lc->sound_conf.ea=val;
4030 }
4031
4032 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
4033         return lc->sound_conf.ea;
4034 }
4035
4036 /**
4037  * Mutes or unmutes the local microphone.
4038  *
4039  * @ingroup media_parameters
4040 **/
4041 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
4042         LinphoneCall *call=linphone_core_get_current_call(lc);
4043         AudioStream *st=NULL;
4044         if (linphone_core_is_in_conference(lc)){
4045                 lc->conf_ctx.local_muted=val;
4046                 st=lc->conf_ctx.local_participant;
4047         }else if (call==NULL){
4048                 ms_warning("linphone_core_mute_mic(): No current call !");
4049                 return;
4050         }else{
4051                 st=call->audiostream;
4052                 call->audio_muted=val;
4053         }
4054         if (st!=NULL){
4055                 audio_stream_set_mic_gain(st,
4056                         (val==TRUE) ? 0 : pow(10,lc->sound_conf.soft_mic_lev/10));
4057                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
4058                         audio_stream_mute_rtp(st,val);
4059                 }
4060
4061         }
4062 }
4063 /**
4064  * Returns whether microphone is muted.
4065 **/
4066 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
4067         LinphoneCall *call=linphone_core_get_current_call(lc);
4068         if (linphone_core_is_in_conference(lc)){
4069                 return lc->conf_ctx.local_muted;
4070         }else if (call==NULL){
4071                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4072                 return FALSE;
4073         }
4074         return call->audio_muted;
4075 }
4076
4077 // returns rtp transmission status for an active stream
4078 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
4079 // was set on then rtp transmission is also muted
4080 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
4081         LinphoneCall *call=linphone_core_get_current_call(lc);
4082         if (call==NULL){
4083                 ms_warning("linphone_core_is_mic_muted(): No current call !");
4084                 return FALSE;
4085         }
4086         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
4087                 return call->audio_muted;
4088         }
4089         return FALSE;
4090 }
4091
4092 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
4093         lc->sound_conf.agc=val;
4094 }
4095
4096 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
4097         return lc->sound_conf.agc;
4098 }
4099
4100 /**
4101  * Send the specified dtmf.
4102  *
4103  * @ingroup media_parameters
4104  * This function only works during calls. The dtmf is automatically played to the user.
4105  * @param lc The LinphoneCore object
4106  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
4107  *
4108 **/
4109 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
4110 {
4111         LinphoneCall *call=linphone_core_get_current_call(lc);
4112         if (call==NULL){
4113                 ms_warning("linphone_core_send_dtmf(): no active call");
4114                 return;
4115         }
4116         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
4117         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
4118         {
4119                 /* In Band DTMF */
4120                 if (call->audiostream!=NULL){
4121                         audio_stream_send_dtmf(call->audiostream,dtmf);
4122                 }
4123                 else
4124                 {
4125                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
4126                 }
4127         }
4128         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
4129                 /* Out of Band DTMF (use INFO method) */
4130                 sal_call_send_dtmf(call->op,dtmf);
4131         }
4132 }
4133
4134 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
4135         if (lc->net_conf.stun_server!=NULL)
4136                 ms_free(lc->net_conf.stun_server);
4137         if (server)
4138                 lc->net_conf.stun_server=ms_strdup(server);
4139         else lc->net_conf.stun_server=NULL;
4140         if (linphone_core_ready(lc))
4141                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
4142 }
4143
4144 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
4145         return lc->net_conf.stun_server;
4146 }
4147
4148 bool_t linphone_core_upnp_available(const LinphoneCore *lc){
4149 #ifdef BUILD_UPNP
4150         return TRUE;
4151 #else
4152         return FALSE;
4153 #endif //BUILD_UPNP
4154 }
4155
4156 LinphoneUpnpState linphone_core_get_upnp_state(const LinphoneCore *lc){
4157 #ifdef BUILD_UPNP
4158         return linphone_upnp_context_get_state(lc->upnp);
4159 #else
4160         return LinphoneUpnpStateNotAvailable;
4161 #endif //BUILD_UPNP
4162 }
4163
4164 const char * linphone_core_get_upnp_external_ipaddress(const LinphoneCore *lc){
4165 #ifdef BUILD_UPNP
4166         return linphone_upnp_context_get_external_ipaddress(lc->upnp);
4167 #else
4168         return NULL;
4169 #endif //BUILD_UPNP
4170 }
4171
4172
4173 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
4174         return lc->net_conf.relay;
4175 }
4176
4177 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
4178         if (lc->net_conf.relay!=NULL){
4179                 ms_free(lc->net_conf.relay);
4180                 lc->net_conf.relay=NULL;
4181         }
4182         if (addr){
4183                 lc->net_conf.relay=ms_strdup(addr);
4184         }
4185         return 0;
4186 }
4187
4188 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
4189 {
4190         if (lc->net_conf.nat_address!=NULL){
4191                 ms_free(lc->net_conf.nat_address);
4192         }
4193         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
4194         else lc->net_conf.nat_address=NULL;
4195         if (lc->sip_conf.contact) update_primary_contact(lc);
4196 }
4197
4198 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
4199         return lc->net_conf.nat_address;
4200 }
4201
4202 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
4203 {
4204         struct sockaddr_storage ss;
4205         socklen_t ss_len;
4206         int error;
4207         char ipstring [INET6_ADDRSTRLEN];
4208
4209         if (lc->net_conf.nat_address==NULL) return NULL;
4210
4211         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
4212                 return lc->net_conf.nat_address;
4213         }
4214
4215         error = getnameinfo((struct sockaddr *)&ss, ss_len,
4216                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
4217         if (error) {
4218                 return lc->net_conf.nat_address;
4219         }
4220
4221         if (lc->net_conf.nat_address_ip!=NULL){
4222                 ms_free(lc->net_conf.nat_address_ip);
4223         }
4224         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
4225         return lc->net_conf.nat_address_ip;
4226 }
4227
4228 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
4229 #ifndef BUILD_UPNP
4230         if(pol == LinphonePolicyUseUpnp) {
4231                 ms_warning("UPNP is not available, reset firewall policy to no firewall");
4232                 pol = LinphonePolicyNoFirewall;
4233         }
4234 #else //BUILD_UPNP
4235         if(pol == LinphonePolicyUseUpnp) {
4236                 if(lc->upnp == NULL) {
4237                         lc->upnp = linphone_upnp_context_new(lc);
4238                 }
4239         } else {
4240                 if(lc->upnp != NULL) {
4241                         linphone_upnp_context_destroy(lc->upnp);
4242                         lc->upnp = NULL;
4243                 }
4244         }
4245 #endif //BUILD_UPNP
4246         lc->net_conf.firewall_policy=pol;
4247         if (lc->sip_conf.contact) update_primary_contact(lc);
4248         if (linphone_core_ready(lc))
4249                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
4250 }
4251
4252 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
4253         return lc->net_conf.firewall_policy;
4254 }
4255
4256 /**
4257  * Get the list of call logs (past calls).
4258  *
4259  * @ingroup call_logs
4260 **/
4261 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
4262         return lc->call_logs;
4263 }
4264
4265 /**
4266  * Erase the call log.
4267  *
4268  * @ingroup call_logs
4269 **/
4270 void linphone_core_clear_call_logs(LinphoneCore *lc){
4271         lc->missed_calls=0;
4272         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4273         lc->call_logs=ms_list_free(lc->call_logs);
4274         call_logs_write_to_config_file(lc);
4275 }
4276
4277 /**
4278  * Returns number of missed calls.
4279  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
4280 **/
4281 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
4282         return lc->missed_calls;
4283 }
4284
4285 /**
4286  * Resets the counter of missed calls.
4287 **/
4288 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
4289         lc->missed_calls=0;
4290 }
4291
4292 /**
4293  * Remove a specific call log from call history list.
4294  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
4295  * @param lc the linphone core object
4296  * @param a LinphoneCallLog object.
4297 **/
4298 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
4299         lc->call_logs = ms_list_remove(lc->call_logs, cl);
4300         call_logs_write_to_config_file(lc);
4301         linphone_call_log_destroy(cl);
4302 }
4303
4304 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
4305 #ifdef VIDEO_ENABLED
4306         if (val){
4307                 if (lc->previewstream==NULL){
4308                         lc->previewstream=video_preview_new();
4309                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
4310                         if (lc->video_conf.displaytype)
4311                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
4312                         if (lc->preview_window_id!=0)
4313                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
4314                         video_preview_start(lc->previewstream,lc->video_conf.device);
4315                 }
4316         }else{
4317                 if (lc->previewstream!=NULL){
4318                         video_preview_stop(lc->previewstream);
4319                         lc->previewstream=NULL;
4320                 }
4321         }
4322 #endif
4323 }
4324
4325 /**
4326  * Enables video globally.
4327  *
4328  * @ingroup media_parameters
4329  * This function does not have any effect during calls. It just indicates LinphoneCore to
4330  * initiate future calls with video or not. The two boolean parameters indicate in which
4331  * direction video is enabled. Setting both to false disables video entirely.
4332  *
4333  * @param lc The LinphoneCore object
4334  * @param vcap_enabled indicates whether video capture is enabled
4335  * @param display_enabled indicates whether video display should be shown
4336  *
4337 **/
4338 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
4339 #ifndef VIDEO_ENABLED
4340         if (vcap_enabled || display_enabled)
4341                 ms_warning("This version of linphone was built without video support.");
4342 #endif
4343         lc->video_conf.capture=vcap_enabled;
4344         lc->video_conf.display=display_enabled;
4345         if (linphone_core_ready(lc)){
4346                 lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4347                 lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4348         }
4349         /* need to re-apply network bandwidth settings*/
4350         linphone_core_set_download_bandwidth(lc,
4351                 linphone_core_get_download_bandwidth(lc));
4352         linphone_core_set_upload_bandwidth(lc,
4353                 linphone_core_get_upload_bandwidth(lc));
4354 }
4355
4356 bool_t linphone_core_video_supported(LinphoneCore *lc){
4357 #ifdef VIDEO_ENABLED
4358         return TRUE;
4359 #else
4360         return FALSE;
4361 #endif
4362 }
4363
4364 /**
4365  * Returns TRUE if video is enabled, FALSE otherwise.
4366  * @ingroup media_parameters
4367 **/
4368 bool_t linphone_core_video_enabled(LinphoneCore *lc){
4369         return (lc->video_conf.display || lc->video_conf.capture);
4370 }
4371
4372 /**
4373  * Sets the default policy for video.
4374  * This policy defines whether:
4375  * - video shall be initiated by default for outgoing calls
4376  * - video shall be accepter by default for incoming calls
4377  * @ingroup media_parameters
4378 **/
4379 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
4380         lc->video_policy=*policy;
4381         if (linphone_core_ready(lc)){
4382                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
4383                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
4384         }
4385 }
4386
4387 /**
4388  * Get the default policy for video.
4389  * See linphone_core_set_video_policy() for more details.
4390  * @ingroup media_parameters
4391 **/
4392 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
4393         return &lc->video_policy;
4394 }
4395
4396 /**
4397  * Controls video preview enablement.
4398  *
4399  * @ingroup media_parameters
4400  * Video preview refers to the action of displaying the local webcam image
4401  * to the user while not in call.
4402 **/
4403 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
4404         lc->video_conf.show_local=val;
4405         if (linphone_core_ready(lc))
4406                 lp_config_set_int(lc->config,"video","show_local",val);
4407 }
4408
4409 /**
4410  * Returns TRUE if video previewing is enabled.
4411  * @ingroup media_parameters
4412 **/
4413 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
4414         return lc->video_conf.show_local;
4415 }
4416
4417 /**
4418  * Enables or disable self view during calls.
4419  *
4420  * @ingroup media_parameters
4421  * Self-view refers to having local webcam image inserted in corner
4422  * of the video window during calls.
4423  * This function works at any time, including during calls.
4424 **/
4425 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
4426 #ifdef VIDEO_ENABLED
4427         LinphoneCall *call=linphone_core_get_current_call (lc);
4428         lc->video_conf.selfview=val;
4429         if (call && call->videostream){
4430                 video_stream_enable_self_view(call->videostream,val);
4431         }
4432         if (linphone_core_ready(lc)){
4433                 lp_config_set_int(lc->config,"video","self_view",val);
4434         }
4435 #endif
4436 }
4437
4438 /**
4439  * Returns TRUE if self-view is enabled, FALSE otherwise.
4440  *
4441  * @ingroup media_parameters
4442  *
4443  * Refer to linphone_core_enable_self_view() for details.
4444 **/
4445 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
4446         return lc->video_conf.selfview;
4447 }
4448
4449 /**
4450  * Sets the active video device.
4451  *
4452  * @ingroup media_parameters
4453  * @param lc The LinphoneCore object
4454  * @param id the name of the video device as returned by linphone_core_get_video_devices()
4455 **/
4456 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
4457         MSWebCam *olddev=lc->video_conf.device;
4458         const char *vd;
4459         if (id!=NULL){
4460                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
4461                 if (lc->video_conf.device==NULL){
4462                         ms_warning("Could not find video device %s",id);
4463                 }
4464         }
4465         if (lc->video_conf.device==NULL)
4466                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
4467         if (olddev!=NULL && olddev!=lc->video_conf.device){
4468                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
4469         }
4470         if ( linphone_core_ready(lc) && lc->video_conf.device){
4471                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
4472                 if (vd && strstr(vd,"Static picture")!=NULL){
4473                         vd=NULL;
4474                 }
4475                 lp_config_set_string(lc->config,"video","device",vd);
4476         }
4477         return 0;
4478 }
4479
4480 /**
4481  * Returns the name of the currently active video device.
4482  *
4483  * @param lc The LinphoneCore object
4484  * @ingroup media_parameters
4485 **/
4486 const char *linphone_core_get_video_device(const LinphoneCore *lc){
4487         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
4488         return NULL;
4489 }
4490
4491 #ifdef VIDEO_ENABLED
4492 static VideoStream * get_active_video_stream(LinphoneCore *lc){
4493         VideoStream *vs = NULL;
4494         LinphoneCall *call=linphone_core_get_current_call (lc);
4495         /* Select the video stream from the call in the first place */
4496         if (call && call->videostream) {
4497                 vs = call->videostream;
4498         }
4499         /* If not in call, select the video stream from the preview */
4500         if (vs == NULL && lc->previewstream) {
4501                 vs = lc->previewstream;
4502         }
4503         return vs;
4504 }
4505 #endif
4506
4507 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
4508 #ifdef VIDEO_ENABLED
4509         VideoStream *vs=get_active_video_stream(lc);
4510         /* If we have a video stream (either preview, either from call), we
4511                  have a source and it is using the static picture filter, then
4512                  force the filter to use that picture. */
4513         if (vs && vs->source) {
4514                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4515                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4516                                                                                                                 (void *)path);
4517                 }
4518         }
4519         /* Tell the static image filter to use that image from now on so
4520                  that the image will be used next time it has to be read */
4521         ms_static_image_set_default_image(path);
4522 #else
4523         ms_warning("Video support not compiled.");
4524 #endif
4525         return 0;
4526 }
4527
4528 const char *linphone_core_get_static_picture(LinphoneCore *lc) {
4529         const char *path=NULL;
4530 #ifdef VIDEO_ENABLED
4531         path=ms_static_image_get_default_image();
4532 #else
4533         ms_warning("Video support not compiled.");
4534 #endif
4535         return path;
4536 }
4537
4538 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4539 #ifdef VIDEO_ENABLED
4540         VideoStream *vs = NULL;
4541
4542         vs=get_active_video_stream(lc);
4543
4544         /* If we have a video stream (either preview, either from call), we
4545                  have a source and it is using the static picture filter, then
4546                  force the filter to use that picture. */
4547         if (vs && vs->source) {
4548                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4549                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4550                 }
4551         }
4552 #else
4553         ms_warning("Video support not compiled.");
4554 #endif
4555         return 0;
4556 }
4557
4558 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4559 #ifdef VIDEO_ENABLED
4560         VideoStream *vs = NULL;
4561         vs=get_active_video_stream(lc);
4562         /* If we have a video stream (either preview, either from call), we
4563                  have a source and it is using the static picture filter, then
4564                  force the filter to use that picture. */
4565         if (vs && vs->source) {
4566                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4567
4568                         float fps;
4569
4570                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4571                         return fps;
4572                 }
4573         }
4574 #else
4575         ms_warning("Video support not compiled.");
4576 #endif
4577         return 0;
4578 }
4579
4580 /**
4581  * Returns the native window handle of the video window, casted as an unsigned long.
4582  *
4583  * @ingroup media_parameters
4584 **/
4585 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4586 #ifdef VIDEO_ENABLED
4587         LinphoneCall *call=linphone_core_get_current_call (lc);
4588         if (call && call->videostream)
4589                 return video_stream_get_native_window_id(call->videostream);
4590         if (lc->previewstream)
4591                 return video_stream_get_native_window_id(lc->previewstream);
4592 #endif
4593         return lc->video_window_id;
4594 }
4595
4596 /**@ingroup media_parameters
4597  * Set the native video window id where the video is to be displayed.
4598  * If not set the core will create its own window.
4599 **/
4600 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4601 #ifdef VIDEO_ENABLED
4602         LinphoneCall *call=linphone_core_get_current_call(lc);
4603         lc->video_window_id=id;
4604         if (call!=NULL && call->videostream){
4605                 video_stream_set_native_window_id(call->videostream,id);
4606         }
4607 #endif
4608 }
4609
4610 /**
4611  * Returns the native window handle of the video preview window, casted as an unsigned long.
4612  *
4613  * @ingroup media_parameters
4614 **/
4615 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4616 #ifdef VIDEO_ENABLED
4617         LinphoneCall *call=linphone_core_get_current_call (lc);
4618         if (call && call->videostream)
4619                 return video_stream_get_native_preview_window_id(call->videostream);
4620         if (lc->previewstream)
4621                 return video_preview_get_native_window_id(lc->previewstream);
4622 #endif
4623         return lc->preview_window_id;
4624 }
4625
4626 /**
4627  * @ingroup media_parameters
4628  * Set the native window id where the preview video (local camera) is to be displayed.
4629  * This has to be used in conjonction with linphone_core_use_preview_window().
4630  * If not set the core will create its own window.
4631 **/
4632 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4633         lc->preview_window_id=id;
4634 #ifdef VIDEO_ENABLED
4635         LinphoneCall *call=linphone_core_get_current_call(lc);
4636         if (call!=NULL && call->videostream){
4637                 video_stream_set_native_preview_window_id(call->videostream,id);
4638         }else if (lc->previewstream){
4639                 video_preview_set_native_window_id(lc->previewstream,id);
4640         }
4641 #endif
4642 }
4643
4644 /**
4645  * Can be used to disable video showing to free XV port
4646 **/
4647 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4648 #ifdef VIDEO_ENABLED
4649         ms_error("linphone_core_show_video %d", show);
4650         LinphoneCall *call=linphone_core_get_current_call(lc);
4651         if (call!=NULL && call->videostream){
4652                 video_stream_show_video(call->videostream,show);
4653         }
4654 #endif
4655 }
4656
4657 /**
4658  * Tells the core to use a separate window for local camera preview video, instead of
4659  * inserting local view within the remote video window.
4660  *
4661 **/
4662 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4663         lc->use_preview_window=yesno;
4664 }
4665 /**
4666  * @ingroup media_parameters
4667  *returns current device orientation
4668  */
4669 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4670         return lc->device_rotation;
4671 }
4672 /**
4673  * @ingroup media_parameters
4674  * Tells the core the device current orientation. This can be used by capture filters
4675  * on mobile devices to select between portrait/landscape mode and to produce properly
4676  * oriented images. The exact meaning of the value in rotation if left to each device
4677  * specific implementations.
4678  *@param lc  object.
4679  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4680  *
4681 **/
4682 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4683 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4684         lc->device_rotation = rotation;
4685 #ifdef VIDEO_ENABLED
4686         LinphoneCall *call=linphone_core_get_current_call(lc);
4687         if (call!=NULL && call->videostream){
4688                 video_stream_set_device_rotation(call->videostream,rotation);
4689         }
4690 #endif
4691 }
4692
4693 static MSVideoSizeDef supported_resolutions[]={
4694 #ifdef ENABLE_HD
4695         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4696         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4697 #endif
4698         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4699         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4700         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4701         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4702         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4703         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4704         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4705         {       {0,0}                   ,       NULL    }
4706 };
4707
4708 /**
4709  * Returns the zero terminated table of supported video resolutions.
4710  *
4711  * @ingroup media_parameters
4712 **/
4713 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4714         return supported_resolutions;
4715 }
4716
4717 static MSVideoSize video_size_get_by_name(const char *name){
4718         MSVideoSizeDef *pdef=supported_resolutions;
4719         MSVideoSize null_vsize={0,0};
4720         for(;pdef->name!=NULL;pdef++){
4721                 if (strcasecmp(name,pdef->name)==0){
4722                         return pdef->vsize;
4723                 }
4724         }
4725         ms_warning("Video resolution %s is not supported in linphone.",name);
4726         return null_vsize;
4727 }
4728
4729 static const char *video_size_get_name(MSVideoSize vsize){
4730         MSVideoSizeDef *pdef=supported_resolutions;
4731         for(;pdef->name!=NULL;pdef++){
4732                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4733                         return pdef->name;
4734                 }
4735         }
4736         return NULL;
4737 }
4738
4739 static bool_t video_size_supported(MSVideoSize vsize){
4740         if (video_size_get_name(vsize)) return TRUE;
4741         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4742         return FALSE;
4743 }
4744
4745 /**
4746  * Sets the preferred video size.
4747  *
4748  * @ingroup media_parameters
4749  * This applies only to the stream that is captured and sent to the remote party,
4750  * since we accept all standard video size on the receive path.
4751 **/
4752 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4753         if (video_size_supported(vsize)){
4754                 MSVideoSize oldvsize=lc->video_conf.vsize;
4755                 lc->video_conf.vsize=vsize;
4756                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4757                         toggle_video_preview(lc,FALSE);
4758                         toggle_video_preview(lc,TRUE);
4759                 }
4760                 if ( linphone_core_ready(lc))
4761                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4762         }
4763 }
4764
4765 /**
4766  * Sets the preferred video size by its name.
4767  *
4768  * @ingroup media_parameters
4769  * This is identical to linphone_core_set_preferred_video_size() except
4770  * that it takes the name of the video resolution as input.
4771  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4772 **/
4773 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4774         MSVideoSize vsize=video_size_get_by_name(name);
4775         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4776         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4777         else linphone_core_set_preferred_video_size(lc,default_vsize);
4778 }
4779
4780 /**
4781  * Returns the current preferred video size for sending.
4782  *
4783  * @ingroup media_parameters
4784 **/
4785 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4786         return lc->video_conf.vsize;
4787 }
4788
4789 /**
4790  * Ask the core to stream audio from and to files, instead of using the soundcard.
4791 **/
4792 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4793         lc->use_files=yesno;
4794 }
4795
4796 /**
4797  * Sets a wav file to be played when putting somebody on hold,
4798  * or when files are used instead of soundcards (see linphone_core_use_files()).
4799  *
4800  * The file must be a 16 bit linear wav file.
4801 **/
4802 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4803         LinphoneCall *call=linphone_core_get_current_call(lc);
4804         if (lc->play_file!=NULL){
4805                 ms_free(lc->play_file);
4806                 lc->play_file=NULL;
4807         }
4808         if (file!=NULL) {
4809                 lc->play_file=ms_strdup(file);
4810                 if (call && call->audiostream && call->audiostream->ms.ticker)
4811                         audio_stream_play(call->audiostream,file);
4812         }
4813 }
4814
4815
4816 /**
4817  * Sets a wav file where incoming stream is to be recorded,
4818  * when files are used instead of soundcards (see linphone_core_use_files()).
4819  *
4820  * This feature is different from call recording (linphone_call_params_set_record_file())
4821  * The file will be a 16 bit linear wav file.
4822 **/
4823 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4824         LinphoneCall *call=linphone_core_get_current_call(lc);
4825         if (lc->rec_file!=NULL){
4826                 ms_free(lc->rec_file);
4827                 lc->rec_file=NULL;
4828         }
4829         if (file!=NULL) {
4830                 lc->rec_file=ms_strdup(file);
4831                 if (call && call->audiostream)
4832                         audio_stream_record(call->audiostream,file);
4833         }
4834 }
4835
4836
4837 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4838         LinphoneCall *call=linphone_core_get_current_call (lc);
4839         AudioStream *stream=NULL;
4840         if (call){
4841                 stream=call->audiostream;
4842         }else if (linphone_core_is_in_conference(lc)){
4843                 stream=lc->conf_ctx.local_participant;
4844         }
4845         if (stream){
4846                 return stream->dtmfgen;
4847         }
4848         if (lc->ringstream==NULL){
4849                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4850                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4851                 if (ringcard == NULL)
4852                         return NULL;
4853
4854                 lc->ringstream=ring_start(NULL,0,ringcard);
4855                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4856                 lc->dmfs_playing_start_time=time(NULL);
4857         }else{
4858                 if (lc->dmfs_playing_start_time!=0)
4859                         lc->dmfs_playing_start_time=time(NULL);
4860         }
4861         return lc->ringstream->gendtmf;
4862 }
4863
4864 /**
4865  * @ingroup media_parameters
4866  * Plays a dtmf sound to the local user.
4867  * @param lc #LinphoneCore
4868  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4869  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4870 **/
4871 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4872         MSFilter *f=get_dtmf_gen(lc);
4873         if (f==NULL){
4874                 ms_error("No dtmf generator at this time !");
4875                 return;
4876         }
4877
4878         if (duration_ms>0)
4879                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4880         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4881 }
4882
4883 /**
4884  * @ingroup media_parameters
4885  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4886  * @param lc #LinphoneCore
4887 **/
4888 void linphone_core_play_tone(LinphoneCore *lc){
4889         MSFilter *f=get_dtmf_gen(lc);
4890         MSDtmfGenCustomTone def;
4891         if (f==NULL){
4892                 ms_error("No dtmf generator at this time !");
4893                 return;
4894         }
4895         def.duration=300;
4896         def.frequency=500;
4897         def.amplitude=1;
4898         def.interval=2000;
4899         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4900 }
4901
4902 /**
4903  * @ingroup media_parameters
4904  *
4905  * Stops playing a dtmf started by linphone_core_play_dtmf().
4906 **/
4907 void linphone_core_stop_dtmf(LinphoneCore *lc){
4908         MSFilter *f=get_dtmf_gen(lc);
4909         if (f!=NULL)
4910                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4911 }
4912
4913
4914
4915 /**
4916  * Retrieves the user pointer that was given to linphone_core_new()
4917  *
4918  * @ingroup initializing
4919 **/
4920 void *linphone_core_get_user_data(LinphoneCore *lc){
4921         return lc->data;
4922 }
4923
4924
4925 /**
4926  * Associate a user pointer to the linphone core.
4927  *
4928  * @ingroup initializing
4929 **/
4930 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4931         lc->data=userdata;
4932 }
4933
4934 int linphone_core_get_mtu(const LinphoneCore *lc){
4935         return lc->net_conf.mtu;
4936 }
4937
4938 /**
4939  * Sets the maximum transmission unit size in bytes.
4940  * This information is useful for sending RTP packets.
4941  * Default value is 1500.
4942  *
4943  * @ingroup media_parameters
4944 **/
4945 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4946         lc->net_conf.mtu=mtu;
4947         if (mtu>0){
4948                 if (mtu<500){
4949                         ms_error("MTU too small !");
4950                         mtu=500;
4951                 }
4952                 ms_set_mtu(mtu);
4953                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4954         }else ms_set_mtu(0);//use mediastreamer2 default value
4955 }
4956
4957 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4958         lc->wait_cb=cb;
4959         lc->wait_ctx=user_context;
4960 }
4961
4962 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4963         if (lc->wait_cb){
4964                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4965         }
4966 }
4967
4968 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4969         if (lc->wait_cb){
4970                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4971         }else{
4972 #ifdef WIN32
4973                 Sleep(50000);
4974 #else
4975                 usleep(50000);
4976 #endif
4977         }
4978 }
4979
4980 void linphone_core_stop_waiting(LinphoneCore *lc){
4981         if (lc->wait_cb){
4982                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4983         }
4984 }
4985
4986 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4987         lc->rtptf=factories;
4988 }
4989
4990 /**
4991  * Retrieve RTP statistics regarding current call.
4992  * @param local RTP statistics computed locally.
4993  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4994  *
4995  * @note Remote RTP statistics is not implemented yet.
4996  *
4997  * @returns 0 or -1 if no call is running.
4998 **/
4999
5000 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
5001         LinphoneCall *call=linphone_core_get_current_call (lc);
5002         if (call!=NULL){
5003                 if (call->audiostream!=NULL){
5004                         memset(remote,0,sizeof(*remote));
5005                         audio_stream_get_local_rtp_stats (call->audiostream,local);
5006                         return 0;
5007                 }
5008         }
5009         return -1;
5010 }
5011
5012 void net_config_uninit(LinphoneCore *lc)
5013 {
5014         net_config_t *config=&lc->net_conf;
5015
5016         if (config->stun_server!=NULL){
5017                 ms_free(lc->net_conf.stun_server);
5018         }
5019         if (config->nat_address!=NULL){
5020                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
5021                 ms_free(lc->net_conf.nat_address);
5022         }
5023         if (lc->net_conf.nat_address_ip !=NULL){
5024                 ms_free(lc->net_conf.nat_address_ip);
5025         }
5026         lp_config_set_int(lc->config,"net","mtu",config->mtu);
5027 }
5028
5029
5030 void sip_config_uninit(LinphoneCore *lc)
5031 {
5032         MSList *elem;
5033         int i;
5034         sip_config_t *config=&lc->sip_conf;
5035
5036         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
5037         lp_config_set_string(lc->config,"sip","contact",config->contact);
5038         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
5039         lp_config_set_int(lc->config,"sip","in_call_timeout",config->in_call_timeout);
5040         lp_config_set_int(lc->config,"sip","delayed_timeout",config->delayed_timeout);
5041         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
5042         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
5043         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
5044         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
5045         lp_config_set_int(lc->config,"sip","register_only_when_upnp_is_ok",config->register_only_when_upnp_is_ok);
5046
5047
5048
5049         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
5050                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
5051                 linphone_proxy_config_edit(cfg);        /* to unregister */
5052         }
5053
5054         for (i=0;i<20;i++){
5055                 sal_iterate(lc->sal);
5056 #ifndef WIN32
5057                 usleep(100000);
5058 #else
5059                 Sleep(100);
5060 #endif
5061         }
5062
5063         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
5064         ms_list_free(config->proxies);
5065         config->proxies=NULL;
5066
5067         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
5068
5069         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
5070         ms_list_free(lc->auth_info);
5071         lc->auth_info=NULL;
5072
5073         sal_uninit(lc->sal);
5074         lc->sal=NULL;
5075
5076         if (lc->sip_conf.guessed_contact)
5077                 ms_free(lc->sip_conf.guessed_contact);
5078         if (config->contact)
5079                 ms_free(config->contact);
5080
5081 }
5082
5083 void rtp_config_uninit(LinphoneCore *lc)
5084 {
5085         rtp_config_t *config=&lc->rtp_conf;
5086         if (config->audio_rtp_min_port == config->audio_rtp_max_port) {
5087                 lp_config_set_int(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port);
5088         } else {
5089                 lp_config_set_range(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port, config->audio_rtp_max_port);
5090         }
5091         if (config->video_rtp_min_port == config->video_rtp_max_port) {
5092                 lp_config_set_int(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port);
5093         } else {
5094                 lp_config_set_range(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port, config->video_rtp_max_port);
5095         }
5096         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
5097         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
5098         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
5099         lp_config_set_int(lc->config,"rtp","audio_adaptive_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
5100         lp_config_set_int(lc->config,"rtp","video_adaptive_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
5101 }
5102
5103 static void sound_config_uninit(LinphoneCore *lc)
5104 {
5105         sound_config_t *config=&lc->sound_conf;
5106         ms_free(config->cards);
5107
5108         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
5109         lp_config_set_float(lc->config,"sound","playback_gain_db",config->soft_play_lev);
5110         lp_config_set_float(lc->config,"sound","mic_gain_db",config->soft_mic_lev);
5111
5112         if (config->local_ring) ms_free(config->local_ring);
5113         if (config->remote_ring) ms_free(config->remote_ring);
5114         ms_snd_card_manager_destroy();
5115 }
5116
5117 static void video_config_uninit(LinphoneCore *lc)
5118 {
5119         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
5120         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
5121         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
5122         if (lc->video_conf.cams)
5123                 ms_free(lc->video_conf.cams);
5124 }
5125
5126 void _linphone_core_codec_config_write(LinphoneCore *lc){
5127         if (linphone_core_ready(lc)){
5128                 PayloadType *pt;
5129                 codecs_config_t *config=&lc->codecs_conf;
5130                 MSList *node;
5131                 char key[50];
5132                 int index;
5133                 index=0;
5134                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
5135                         pt=(PayloadType*)(node->data);
5136                         sprintf(key,"audio_codec_%i",index);
5137                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5138                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5139                         lp_config_set_int(lc->config,key,"channels",pt->channels);
5140                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5141                         index++;
5142                 }
5143                 sprintf(key,"audio_codec_%i",index);
5144                 lp_config_clean_section (lc->config,key);
5145
5146                 index=0;
5147                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
5148                         pt=(PayloadType*)(node->data);
5149                         sprintf(key,"video_codec_%i",index);
5150                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
5151                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
5152                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
5153                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
5154                         index++;
5155                 }
5156                 sprintf(key,"video_codec_%i",index);
5157                 lp_config_clean_section (lc->config,key);
5158         }
5159 }
5160
5161 static void codecs_config_uninit(LinphoneCore *lc)
5162 {
5163         _linphone_core_codec_config_write(lc);
5164         ms_list_free(lc->codecs_conf.audio_codecs);
5165         ms_list_free(lc->codecs_conf.video_codecs);
5166 }
5167
5168 void ui_config_uninit(LinphoneCore* lc)
5169 {
5170         if (lc->friends){
5171                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
5172                 ms_list_free(lc->friends);
5173                 lc->friends=NULL;
5174         }
5175 }
5176
5177 /**
5178  * Returns the LpConfig object used to manage the storage (config) file.
5179  *
5180  * @ingroup misc
5181  * The application can use the LpConfig object to insert its own private
5182  * sections and pairs of key=value in the configuration file.
5183  *
5184 **/
5185 LpConfig *linphone_core_get_config(LinphoneCore *lc){
5186         return lc->config;
5187 }
5188
5189 static void linphone_core_uninit(LinphoneCore *lc)
5190 {
5191         linphone_core_free_hooks(lc);
5192         while(lc->calls)
5193         {
5194                 LinphoneCall *the_call = lc->calls->data;
5195                 linphone_core_terminate_call(lc,the_call);
5196                 linphone_core_iterate(lc);
5197 #ifdef WIN32
5198                 Sleep(50000);
5199 #else
5200                 usleep(50000);
5201 #endif
5202         }
5203 #ifdef BUILD_UPNP
5204         if(lc->upnp != NULL) {
5205                 linphone_upnp_context_destroy(lc->upnp);
5206                 lc->upnp = NULL;
5207         }
5208 #endif //BUILD_UPNP
5209
5210         if (lc->friends)
5211                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
5212         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
5213 #ifdef VIDEO_ENABLED
5214         if (lc->previewstream!=NULL){
5215                 video_preview_stop(lc->previewstream);
5216                 lc->previewstream=NULL;
5217         }
5218 #endif
5219         ms_event_queue_destroy(lc->msevq);
5220         lc->msevq=NULL;
5221         /* save all config */
5222         net_config_uninit(lc);
5223         rtp_config_uninit(lc);
5224         if (lc->ringstream) ring_stop(lc->ringstream);
5225         sound_config_uninit(lc);
5226         video_config_uninit(lc);
5227         codecs_config_uninit(lc);
5228         ui_config_uninit(lc);
5229         sip_config_uninit(lc);
5230         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
5231         lp_config_destroy(lc->config);
5232         lc->config = NULL; /* Mark the config as NULL to block further calls */
5233         sip_setup_unregister_all();
5234
5235         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
5236         lc->call_logs=ms_list_free(lc->call_logs);
5237
5238         ms_list_for_each(lc->last_recv_msg_ids,ms_free);
5239         lc->last_recv_msg_ids=ms_list_free(lc->last_recv_msg_ids);
5240
5241         // Free struct variable
5242         if(lc->zrtp_secrets_cache != NULL) {
5243                 ms_free(lc->zrtp_secrets_cache);
5244         }
5245         if(lc->play_file!=NULL){
5246                 ms_free(lc->play_file);
5247         }
5248         if(lc->rec_file!=NULL){
5249                 ms_free(lc->rec_file);
5250         }
5251
5252         linphone_core_free_payload_types(lc);
5253         ortp_exit();
5254         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
5255 #ifdef TUNNEL_ENABLED
5256         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
5257 #endif
5258 }
5259
5260 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
5261         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
5262         // second get the list of available proxies
5263         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5264         for(;elem!=NULL;elem=elem->next){
5265                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5266                 if (linphone_proxy_config_register_enabled(cfg) ) {
5267                         if (!isReachable) {
5268                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
5269                         }else{
5270                                 cfg->commit=TRUE;
5271                         }
5272                 }
5273         }
5274         lc->netup_time=curtime;
5275         lc->network_reachable=isReachable;
5276         if(!isReachable) {
5277                 sal_reset_transports(lc->sal);
5278         }
5279 }
5280
5281 void linphone_core_refresh_registers(LinphoneCore* lc) {
5282         const MSList *elem;
5283         if (!lc->network_reachable) {
5284                 ms_warning("Refresh register operation not available (network unreachable)");
5285                 return;
5286         }
5287         elem=linphone_core_get_proxy_config_list(lc);
5288         for(;elem!=NULL;elem=elem->next){
5289                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5290                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
5291                         linphone_proxy_config_refresh_register(cfg);
5292                 }
5293         }
5294 }
5295
5296 void __linphone_core_invalidate_registers(LinphoneCore* lc){
5297         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5298         for(;elem!=NULL;elem=elem->next){
5299                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5300                 if (linphone_proxy_config_register_enabled(cfg)) {
5301                         linphone_proxy_config_edit(cfg);
5302                         linphone_proxy_config_done(cfg);
5303                 }
5304         }
5305 }
5306
5307 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
5308         //first disable automatic mode
5309         if (lc->auto_net_state_mon) {
5310                 ms_message("Disabling automatic network state monitoring");
5311                 lc->auto_net_state_mon=FALSE;
5312         }
5313         set_network_reachable(lc,isReachable, ms_time(NULL));
5314 }
5315
5316 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
5317         return lc->network_reachable;
5318 }
5319 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
5320         return sal_get_socket(lc->sal);
5321 }
5322 /**
5323  * Destroys a LinphoneCore
5324  *
5325  * @ingroup initializing
5326 **/
5327 void linphone_core_destroy(LinphoneCore *lc){
5328         linphone_core_uninit(lc);
5329         ms_free(lc);
5330 }
5331 /**
5332  * Get the number of Call
5333  *
5334  * @ingroup call_control
5335 **/
5336 int linphone_core_get_calls_nb(const LinphoneCore *lc){
5337         return  ms_list_size(lc->calls);;
5338 }
5339
5340 /**
5341  * Check if we do not have exceed the number of simultaneous call
5342  *
5343  * @ingroup call_control
5344 **/
5345 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
5346 {
5347         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
5348                 return TRUE;
5349         ms_message("Maximum amount of simultaneous calls reached !");
5350         return FALSE;
5351 }
5352
5353
5354 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
5355 {
5356         if(linphone_core_can_we_add_call(lc))
5357         {
5358                 lc->calls = ms_list_append(lc->calls,call);
5359                 return 0;
5360         }
5361         return -1;
5362 }
5363
5364 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
5365 {
5366         MSList *it;
5367         MSList *the_calls = lc->calls;
5368
5369         it=ms_list_find(the_calls,call);
5370         if (it)
5371         {
5372                 the_calls = ms_list_remove_link(the_calls,it);
5373         }
5374         else
5375         {
5376                 ms_warning("could not find the call into the list\n");
5377                 return -1;
5378         }
5379         lc->calls = the_calls;
5380         return 0;
5381 }
5382
5383 /**
5384  * Specifiies a ring back tone to be played to far end during incoming calls.
5385 **/
5386 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
5387         if (lc->sound_conf.ringback_tone){
5388                 ms_free(lc->sound_conf.ringback_tone);
5389                 lc->sound_conf.ringback_tone=NULL;
5390         }
5391         if (file)
5392                 lc->sound_conf.ringback_tone=ms_strdup(file);
5393 }
5394
5395 /**
5396  * Returns the ring back tone played to far end during incoming calls.
5397 **/
5398 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
5399         return lc->sound_conf.ringback_tone;
5400 }
5401
5402 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
5403         const MSList *elem;
5404         for(elem=from;elem!=NULL;elem=elem->next){
5405                 PayloadType *pt=(PayloadType*)elem->data;
5406                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
5407                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
5408                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
5409                         return pt;
5410                 }
5411         }
5412         return NULL;
5413 }
5414
5415
5416 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
5417         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
5418         if (result)  {
5419                 return result;
5420         } else {
5421                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
5422                 if (result) {
5423                         return result;
5424                 }
5425         }
5426         /*not found*/
5427         return NULL;
5428 }
5429
5430 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
5431         switch(gs){
5432                 case LinphoneGlobalOff:
5433                         return "LinphoneGlobalOff";
5434                 break;
5435                 case LinphoneGlobalOn:
5436                         return "LinphoneGlobalOn";
5437                 break;
5438                 case LinphoneGlobalStartup:
5439                         return "LinphoneGlobalStartup";
5440                 break;
5441                 case LinphoneGlobalShutdown:
5442                         return "LinphoneGlobalShutdown";
5443                 break;
5444         }
5445         return NULL;
5446 }
5447
5448 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
5449         return lc->state;
5450 }
5451
5452 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
5453         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
5454         linphone_core_init_default_params(lc, p);
5455         return p;
5456 }
5457
5458 const char *linphone_reason_to_string(LinphoneReason err){
5459         switch(err){
5460                 case LinphoneReasonNone:
5461                         return "No error";
5462                 case LinphoneReasonNoResponse:
5463                         return "No response";
5464                 case LinphoneReasonBadCredentials:
5465                         return "Bad credentials";
5466                 case LinphoneReasonDeclined:
5467                         return "Call declined";
5468                 case LinphoneReasonNotFound:
5469                         return "User not found";
5470                 case LinphoneReasonNotAnswered:
5471                         return "Not answered";
5472                 case LinphoneReasonBusy:
5473                         return "Busy";
5474         }
5475         return "unknown error";
5476 }
5477
5478 const char *linphone_error_to_string(LinphoneReason err){
5479         return linphone_reason_to_string(err);
5480 }
5481 /**
5482  * Enables signaling keep alive
5483  */
5484 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
5485         if (enable > 0) {
5486                 sal_use_tcp_tls_keepalive(lc->sal,lc->sip_conf.tcp_tls_keepalive);
5487                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
5488         } else {
5489                 sal_set_keepalive_period(lc->sal,0);
5490         }
5491 }
5492 /**
5493  * Is signaling keep alive enabled
5494  */
5495 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
5496         return sal_get_keepalive_period(lc->sal) > 0;
5497 }
5498
5499 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
5500         get_dtmf_gen(lc); /*make sure ring stream is started*/
5501         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
5502 }
5503
5504 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
5505         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
5506                 ring_stop(lc->ringstream);
5507                 lc->ringstream=NULL;
5508         }
5509 }
5510
5511 int linphone_core_get_max_calls(LinphoneCore *lc) {
5512         return lc->max_calls;
5513 }
5514 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
5515         lc->max_calls=max;
5516 }
5517
5518 typedef struct Hook{
5519         LinphoneCoreIterateHook fun;
5520         void *data;
5521 }Hook;
5522
5523 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
5524         Hook *h=ms_new(Hook,1);
5525         h->fun=hook;
5526         h->data=hook_data;
5527         return h;
5528 }
5529
5530 static void hook_invoke(Hook *h){
5531         h->fun(h->data);
5532 }
5533
5534 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5535         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
5536 }
5537
5538 static void linphone_core_run_hooks(LinphoneCore *lc){
5539         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
5540 }
5541
5542 static void linphone_core_free_hooks(LinphoneCore *lc){
5543         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
5544         ms_list_free(lc->hooks);
5545         lc->hooks=NULL;
5546 }
5547
5548 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5549         MSList *elem;
5550         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
5551                 Hook *h=(Hook*)elem->data;
5552                 if (h->fun==hook && h->data==hook_data){
5553                         lc->hooks = ms_list_remove_link(lc->hooks,elem);
5554                         ms_free(h);
5555                         return;
5556                 }
5557         }
5558         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
5559 }
5560
5561 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
5562         if (lc->zrtp_secrets_cache != NULL) {
5563                 ms_free(lc->zrtp_secrets_cache);
5564         }
5565         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
5566 }
5567
5568 const char *linphone_core_get_zrtp_secrets_file(LinphoneCore *lc){
5569         return lc->zrtp_secrets_cache;
5570 }
5571
5572 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
5573         if (uri == NULL) return NULL;
5574         MSList *calls=lc->calls;
5575         while(calls) {
5576                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5577                 calls=calls->next;
5578                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5579                 char *current_uri=linphone_address_as_string_uri_only(address);
5580                 if (strcmp(uri,current_uri)==0) {
5581                         ms_free(current_uri);
5582                         return c;
5583                 } else {
5584                         ms_free(current_uri);
5585                 }
5586         }
5587         return NULL;
5588 }
5589
5590
5591 /**
5592  * Check if a call will need the sound resources.
5593  *
5594  * @ingroup call_control
5595  * @param lc The LinphoneCore
5596 **/
5597 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5598         MSList *calls=lc->calls;
5599         while(calls) {
5600                 LinphoneCall *c=(LinphoneCall*)calls->data;
5601                 calls=calls->next;
5602                 switch (c->state) {
5603                         case LinphoneCallOutgoingInit:
5604                         case LinphoneCallOutgoingProgress:
5605                         case LinphoneCallOutgoingRinging:
5606                         case LinphoneCallOutgoingEarlyMedia:
5607                         case LinphoneCallConnected:
5608                         case LinphoneCallRefered:
5609                         case LinphoneCallIncomingEarlyMedia:
5610                         case LinphoneCallUpdating:
5611                                 return TRUE;
5612                         default:
5613                                 break;
5614                 }
5615         }
5616         return FALSE;
5617 }
5618
5619 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5620         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5621 }
5622
5623 /**
5624  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5625 **/
5626 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5627         switch(menc){
5628                 case LinphoneMediaEncryptionSRTP:
5629                         return ortp_srtp_supported();
5630                 case LinphoneMediaEncryptionZRTP:
5631                         return ortp_zrtp_available();
5632                 case LinphoneMediaEncryptionNone:
5633                         return TRUE;
5634         }
5635         return FALSE;
5636 }
5637
5638 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5639         const char *type="none";
5640         int ret=0;
5641         if (menc == LinphoneMediaEncryptionSRTP){
5642                 if (!ortp_srtp_supported()){
5643                         ms_warning("SRTP not supported by library.");
5644                         type="none";
5645                         ret=-1;
5646                 }else type="srtp";
5647         }else if (menc == LinphoneMediaEncryptionZRTP){
5648                 if (!ortp_zrtp_available()){
5649                         ms_warning("ZRTP not supported by library.");
5650                         type="none";
5651                         ret=-1;
5652                 }else type="zrtp";
5653         }
5654         lp_config_set_string(lc->config,"sip","media_encryption",type);
5655         return ret;
5656 }
5657
5658 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5659         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5660
5661         if (menc == NULL)
5662                 return LinphoneMediaEncryptionNone;
5663         else if (strcmp(menc, "srtp")==0)
5664                 return LinphoneMediaEncryptionSRTP;
5665         else if (strcmp(menc, "zrtp")==0)
5666                 return LinphoneMediaEncryptionZRTP;
5667         else
5668                 return LinphoneMediaEncryptionNone;
5669 }
5670
5671 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5672         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5673 }
5674
5675 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5676         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5677 }
5678
5679 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5680         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5681         params->media_encryption=linphone_core_get_media_encryption(lc);
5682         params->in_conference=FALSE;
5683 }
5684
5685 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5686         if (lc->device_id) ms_free(lc->device_id);
5687         lc->device_id=ms_strdup(device_id);
5688 }
5689 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5690         return lc->device_id;
5691 }
5692
5693 /**
5694  * Set the DSCP field for SIP signaling channel.
5695  *
5696  * @ingroup network_parameters
5697  * * The DSCP defines the quality of service in IP packets.
5698  *
5699 **/
5700 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5701         sal_set_dscp(lc->sal,dscp);
5702         if (linphone_core_ready(lc)){
5703                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5704                 apply_transports(lc);
5705         }
5706 }
5707
5708 /**
5709  * Get the DSCP field for SIP signaling channel.
5710  *
5711  * @ingroup network_parameters
5712  * * The DSCP defines the quality of service in IP packets.
5713  *
5714 **/
5715 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5716         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5717 }
5718
5719 /**
5720  * Set the DSCP field for outgoing audio streams.
5721  *
5722  * @ingroup network_parameters
5723  * The DSCP defines the quality of service in IP packets.
5724  *
5725 **/
5726 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5727         if (linphone_core_ready(lc))
5728                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5729 }
5730
5731 /**
5732  * Get the DSCP field for outgoing audio streams.
5733  *
5734  * @ingroup network_parameters
5735  * The DSCP defines the quality of service in IP packets.
5736  *
5737 **/
5738 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5739         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5740 }
5741
5742 /**
5743  * Set the DSCP field for outgoing video streams.
5744  *
5745  * @ingroup network_parameters
5746  * The DSCP defines the quality of service in IP packets.
5747  *
5748 **/
5749 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5750         if (linphone_core_ready(lc))
5751                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5752
5753 }
5754
5755 /**
5756  * Get the DSCP field for outgoing video streams.
5757  *
5758  * @ingroup network_parameters
5759  * The DSCP defines the quality of service in IP packets.
5760  *
5761 **/
5762 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5763         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5764 }