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