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