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 <ortp/telephonyevents.h>
  28 #include <ortp/zrtp.h>
  29 #include "mediastreamer2/mediastream.h"
  30 #include "mediastreamer2/mseventqueue.h"
  31 #include "mediastreamer2/msvolume.h"
  32 #include "mediastreamer2/msequalizer.h"
  33 #include "mediastreamer2/dtmfgen.h"
  34
  35 #ifdef INET6
  36 #ifndef WIN32
  37 #include <netdb.h>
  38 #endif
  39 #endif
  40
  41 #ifdef HAVE_CONFIG_H
  42 #include "config.h"
  43 #endif
  44
  45 /*#define UNSTANDART_GSM_11K 1*/
  46
  47 #define ROOT_CA_FILE PACKAGE_DATA_DIR "/linphone/rootca.pem"
  48
  49 static const char *liblinphone_version=LIBLINPHONE_VERSION;
  50 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
  51 static void linphone_core_run_hooks(LinphoneCore *lc);
  52 static void linphone_core_free_hooks(LinphoneCore *lc);
  53
  54 #include "enum.h"
  55 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
  56 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result);
  57 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
  58
  59 /* relative path where is stored local ring*/
  60 #define LOCAL_RING "rings/oldphone.wav"
  61 /* same for remote ring (ringback)*/
  62 #define REMOTE_RING "ringback.wav"
  63 #define HOLD_MUSIC "rings/toy-mono.wav"
  64
  65
  66 extern SalCallbacks linphone_sal_callbacks;
  67
  68 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
  69 {
  70   obj->_func=func;
  71   obj->_user_data=ud;
  72 }
  73
  74 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
  75         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
  76         return 0;
  77 }
  78
  79
  80 /*prevent a gcc bug with %c*/
  81 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
  82 #if !defined(_WIN32_WCE)
  83         return strftime(s, max, fmt, tm);
  84 #else
  85         return 0;
  86         /*FIXME*/
  87 #endif /*_WIN32_WCE*/
  88 }
  89
  90 static void set_call_log_date(LinphoneCallLog *cl, time_t start_time){
  91         struct tm loctime;
  92 #ifdef WIN32
  93 #if !defined(_WIN32_WCE)
  94         loctime=*localtime(&start_time);
  95         /*FIXME*/
  96 #endif /*_WIN32_WCE*/
  97 #else
  98         localtime_r(&start_time,&loctime);
  99 #endif
 100         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",&loctime);
 101 }
 102
 103 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 104         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 105         cl->dir=call->dir;
 106         cl->start_date_time=call->start_time;
 107         set_call_log_date(cl,cl->start_date_time);
 108         cl->from=from;
 109         cl->to=to;
 110     cl->status=LinphoneCallAborted; /*default status*/
 111         return cl;
 112 }
 113
 114 void call_logs_write_to_config_file(LinphoneCore *lc){
 115         MSList *elem;
 116         char logsection[32];
 117         int i;
 118         char *tmp;
 119         LpConfig *cfg=lc->config;
 120
 121         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
 122
 123         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
 124                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
 125                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 126                 lp_config_clean_section(cfg,logsection);
 127                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
 128                 lp_config_set_int(cfg,logsection,"status",cl->status);
 129                 tmp=linphone_address_as_string(cl->from);
 130                 lp_config_set_string(cfg,logsection,"from",tmp);
 131                 ms_free(tmp);
 132                 tmp=linphone_address_as_string(cl->to);
 133                 lp_config_set_string(cfg,logsection,"to",tmp);
 134                 ms_free(tmp);
 135                 if (cl->start_date_time)
 136                         lp_config_set_int64(cfg,logsection,"start_date_time",(int64_t)cl->start_date_time);
 137                 else lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
 138                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
 139                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
 140                 lp_config_set_float(cfg,logsection,"quality",cl->quality);
 141                 lp_config_set_int(cfg,logsection,"video_enabled", cl->video_enabled);
 142                 lp_config_set_string(cfg,logsection,"call_id",cl->call_id);
 143         }
 144         for(;i<lc->max_call_logs;++i){
 145                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 146                 lp_config_clean_section(cfg,logsection);
 147         }
 148 }
 149
 150 static time_t string_to_time(const char *date){
 151 #ifndef WIN32
 152         struct tm tmtime={0};
 153         strptime(date,"%c",&tmtime);
 154         return mktime(&tmtime);
 155 #else
 156         return 0;
 157 #endif
 158 }
 159
 160 static void call_logs_read_from_config_file(LinphoneCore *lc){
 161         char logsection[32];
 162         int i;
 163         const char *tmp;
 164         uint64_t sec;
 165         LpConfig *cfg=lc->config;
 166         for(i=0;;++i){
 167                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 168                 if (lp_config_has_section(cfg,logsection)){
 169                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 170                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
 171                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
 172                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
 173                         if (tmp) cl->from=linphone_address_new(tmp);
 174                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
 175                         if (tmp) cl->to=linphone_address_new(tmp);
 176                         sec=lp_config_get_int64(cfg,logsection,"start_date_time",0);
 177                         if (sec) {
 178                                 /*new call log format with date expressed in seconds */
 179                                 cl->start_date_time=(time_t)sec;
 180                                 set_call_log_date(cl,cl->start_date_time);
 181                         }else{
 182                                 tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
 183                                 if (tmp) {
 184                                         strncpy(cl->start_date,tmp,sizeof(cl->start_date));
 185                                         cl->start_date_time=string_to_time(cl->start_date);
 186                                 }
 187                         }
 188                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
 189                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
 190                         if (tmp) cl->refkey=ms_strdup(tmp);
 191                         cl->quality=lp_config_get_float(cfg,logsection,"quality",-1);
 192                         cl->video_enabled=lp_config_get_int(cfg,logsection,"video_enabled",0);
 193                         cl->call_id=lp_config_get_string(cfg,logsection,"call_id",NULL);
 194                         if(cl->call_id) cl->call_id=ms_strdup(cl->call_id);
 195                         lc->call_logs=ms_list_append(lc->call_logs,cl);
 196                 }else break;
 197         }
 198 }
 199
 200
 201
 202 /**
 203  * @addtogroup call_logs
 204  * @{
 205 **/
 206
 207 /**
 208  * Returns a human readable string describing the call.
 209  *
 210  * @note: the returned char* must be freed by the application (use ms_free()).
 211 **/
 212 char * linphone_call_log_to_str(LinphoneCallLog *cl){
 213         char *status;
 214         char *tmp;
 215         char *from=linphone_address_as_string (cl->from);
 216         char *to=linphone_address_as_string (cl->to);
 217         switch(cl->status){
 218                 case LinphoneCallAborted:
 219                         status=_("aborted");
 220                         break;
 221                 case LinphoneCallSuccess:
 222                         status=_("completed");
 223                         break;
 224                 case LinphoneCallMissed:
 225                         status=_("missed");
 226                         break;
 227                 default:
 228                         status="unknown";
 229         }
 230         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
 231                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
 232                         cl->start_date,
 233                         from,
 234                         to,
 235                         status,
 236                         cl->duration/60,
 237                         cl->duration%60);
 238         ms_free(from);
 239         ms_free(to);
 240         return tmp;
 241 }
 242
 243 /**
 244  * Returns RTP statistics computed locally regarding the call.
 245  *
 246 **/
 247 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
 248         return &cl->local_stats;
 249 }
 250
 251 /**
 252  * Returns RTP statistics computed by remote end and sent back via RTCP.
 253  *
 254  * @note Not implemented yet.
 255 **/
 256 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
 257         return &cl->remote_stats;
 258 }
 259
 260 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
 261         cl->user_pointer=up;
 262 }
 263
 264 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
 265         return cl->user_pointer;
 266 }
 267
 268
 269
 270 /**
 271  * Associate a persistent reference key to the call log.
 272  *
 273  * The reference key can be for example an id to an external database.
 274  * It is stored in the config file, thus can survive to process exits/restarts.
 275  *
 276 **/
 277 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
 278         if (cl->refkey!=NULL){
 279                 ms_free(cl->refkey);
 280                 cl->refkey=NULL;
 281         }
 282         if (refkey) cl->refkey=ms_strdup(refkey);
 283 }
 284
 285 /**
 286  * Get the persistent reference key associated to the call log.
 287  *
 288  * The reference key can be for example an id to an external database.
 289  * It is stored in the config file, thus can survive to process exits/restarts.
 290  *
 291 **/
 292 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
 293         return cl->refkey;
 294 }
 295
 296 /** @} */
 297
 298 void linphone_call_log_destroy(LinphoneCallLog *cl){
 299         if (cl->from!=NULL) linphone_address_destroy(cl->from);
 300         if (cl->to!=NULL) linphone_address_destroy(cl->to);
 301         if (cl->refkey!=NULL) ms_free(cl->refkey);
 302         if (cl->call_id) ms_free((void*)cl->call_id);
 303         ms_free(cl);
 304 }
 305
 306 /**
 307  * Returns TRUE if the LinphoneCall asked to autoanswer
 308  *
 309 **/
 310 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
 311         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
 312         if(call)
 313                 return sal_call_autoanswer_asked(call->op);
 314         else
 315                 return FALSE;
 316 }
 317
 318 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
 319         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
 320         if (call)  return linphone_call_get_duration(call);
 321         return -1;
 322 }
 323
 324 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
 325         LinphoneCall *call=linphone_core_get_current_call(lc);
 326         if (call==NULL) return NULL;
 327         return linphone_call_get_remote_address(call);
 328 }
 329
 330 /**
 331  * Enable logs in supplied FILE*.
 332  *
 333  * @ingroup misc
 334  *
 335  * @param file a C FILE* where to fprintf logs. If null stdout is used.
 336  *
 337 **/
 338 void linphone_core_enable_logs(FILE *file){
 339         if (file==NULL) file=stdout;
 340         ortp_set_log_file(file);
 341         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 342 }
 343
 344 /**
 345  * Enable logs through the user's supplied log callback.
 346  *
 347  * @ingroup misc
 348  *
 349  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
 350  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
 351  *
 352 **/
 353 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
 354         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 355         ortp_set_log_handler(logfunc);
 356 }
 357
 358 /**
 359  * Entirely disable logging.
 360  *
 361  * @ingroup misc
 362 **/
 363 void linphone_core_disable_logs(){
 364         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
 365 }
 366
 367
 368 static void net_config_read (LinphoneCore *lc)
 369 {
 370         int tmp;
 371         const char *tmpstr;
 372         LpConfig *config=lc->config;
 373
 374         lc->net_conf.nat_address_ip = NULL;
 375         tmp=lp_config_get_int(config,"net","download_bw",0);
 376         linphone_core_set_download_bandwidth(lc,tmp);
 377         tmp=lp_config_get_int(config,"net","upload_bw",0);
 378         linphone_core_set_upload_bandwidth(lc,tmp);
 379         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
 380         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
 381         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
 382         linphone_core_set_nat_address(lc,tmpstr);
 383         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
 384         linphone_core_set_firewall_policy(lc,tmp);
 385         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
 386         lc->net_conf.nat_sdp_only=tmp;
 387         tmp=lp_config_get_int(lc->config,"net","mtu",0);
 388         linphone_core_set_mtu(lc,tmp);
 389         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 390         linphone_core_set_download_ptime(lc,tmp);
 391
 392 }
 393
 394 static void build_sound_devices_table(LinphoneCore *lc){
 395         const char **devices;
 396         const char **old;
 397         int ndev;
 398         int i;
 399         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
 400         ndev=ms_list_size(elem);
 401         devices=ms_malloc((ndev+1)*sizeof(const char *));
 402         for (i=0;elem!=NULL;elem=elem->next,i++){
 403                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
 404         }
 405         devices[ndev]=NULL;
 406         old=lc->sound_conf.cards;
 407         lc->sound_conf.cards=devices;
 408         if (old!=NULL) ms_free(old);
 409 }
 410
 411 static void sound_config_read(LinphoneCore *lc)
 412 {
 413         int tmp;
 414         const char *tmpbuf;
 415         const char *devid;
 416         float gain=0;
 417 #ifdef __linux
 418         /*alsadev let the user use custom alsa device within linphone*/
 419         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
 420         if (devid){
 421                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
 422                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
 423         }
 424         tmp=lp_config_get_int(lc->config,"sound","alsa_forced_rate",-1);
 425         if (tmp>0) ms_alsa_card_set_forced_sample_rate(tmp);
 426 #endif
 427         /* retrieve all sound devices */
 428         build_sound_devices_table(lc);
 429
 430         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
 431         linphone_core_set_playback_device(lc,devid);
 432
 433         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
 434         linphone_core_set_ringer_device(lc,devid);
 435
 436         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
 437         linphone_core_set_capture_device(lc,devid);
 438
 439 /*
 440         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
 441         linphone_core_set_play_level(lc,tmp);
 442         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
 443         linphone_core_set_ring_level(lc,tmp);
 444         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
 445         linphone_core_set_rec_level(lc,tmp);
 446         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
 447         linphone_core_set_sound_source(lc,tmpbuf[0]);
 448 */
 449
 450         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 451         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
 452         if (ortp_file_exist(tmpbuf)==-1) {
 453                 ms_warning("%s does not exist",tmpbuf);
 454                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 455         }
 456         if (strstr(tmpbuf,".wav")==NULL){
 457                 /* it currently uses old sound files, so replace them */
 458                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 459         }
 460         linphone_core_set_ring(lc,tmpbuf);
 461
 462         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 463         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
 464         if (ortp_file_exist(tmpbuf)==-1){
 465                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 466         }
 467         if (strstr(tmpbuf,".wav")==NULL){
 468                 /* it currently uses old sound files, so replace them */
 469                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 470         }
 471         linphone_core_set_ringback(lc,tmpbuf);
 472
 473         linphone_core_set_play_file(lc,lp_config_get_string(lc->config,"sound","hold_music",PACKAGE_SOUND_DIR "/" HOLD_MUSIC));
 474         check_sound_device(lc);
 475         lc->sound_conf.latency=0;
 476 #ifndef __ios
 477     tmp=TRUE;
 478 #else
 479     tmp=FALSE; /* on iOS we have builtin echo cancellation.*/
 480 #endif
 481     tmp=lp_config_get_int(lc->config,"sound","echocancellation",tmp);
 482         linphone_core_enable_echo_cancellation(lc,tmp);
 483         linphone_core_enable_echo_limiter(lc,
 484                 lp_config_get_int(lc->config,"sound","echolimiter",0));
 485         linphone_core_enable_agc(lc,
 486                 lp_config_get_int(lc->config,"sound","agc",0));
 487
 488         gain=lp_config_get_float(lc->config,"sound","playback_gain_db",0);
 489         linphone_core_set_playback_gain_db (lc,gain);
 490
 491         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
 492
 493         /*just parse requested stream feature once at start to print out eventual errors*/
 494         linphone_core_get_audio_features(lc);
 495 }
 496
 497 static void sip_config_read(LinphoneCore *lc)
 498 {
 499         char *contact;
 500         const char *tmpstr;
 501         LCSipTransports tr;
 502         int i,tmp;
 503         int ipv6;
 504         int random_port;
 505
 506         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
 507         linphone_core_set_use_info_for_dtmf(lc,tmp);
 508
 509         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
 510                 sal_use_session_timers(lc->sal,200);
 511         }
 512
 513         sal_use_rport(lc->sal,lp_config_get_int(lc->config,"sip","use_rport",1));
 514         sal_use_101(lc->sal,lp_config_get_int(lc->config,"sip","use_101",1));
 515         sal_reuse_authorization(lc->sal, lp_config_get_int(lc->config,"sip","reuse_authorization",0));
 516         sal_expire_old_registration_contacts(lc->sal,lp_config_get_int(lc->config,"sip","expire_old_registration_contacts",0));
 517
 518         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",0);
 519         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
 520
 521         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
 522         if (ipv6==-1){
 523                 ipv6=0;
 524         }
 525         linphone_core_enable_ipv6(lc,ipv6);
 526         memset(&tr,0,sizeof(tr));
 527
 528         tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",0);
 529         tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
 530         tr.tls_port=lp_config_get_int(lc->config,"sip","sip_tls_port",0);
 531
 532         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)==1)
 533                 random_port=(0xDFFF&random())+1024;
 534         else random_port=0;
 535
 536         if (tr.udp_port==0 && tr.tcp_port==0 && tr.tls_port==0){
 537                 tr.udp_port=5060;
 538         }
 539
 540         if (tr.udp_port>0 && random_port){
 541                 tr.udp_port=random_port;
 542                 tr.tls_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 543         }else if (tr.tcp_port>0 && random_port){
 544                 tr.tcp_port=random_port;
 545                 tr.tls_port=tr.udp_port=0; /*make sure only one transport is active at a time*/
 546         }else if (tr.tls_port>0 && random_port){
 547                 tr.tls_port=random_port;
 548                 tr.udp_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 549         }
 550
 551 #ifdef __linux
 552         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", "/etc/ssl/certs"));
 553 #else
 554         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", ROOT_CA_FILE));
 555 #endif
 556         linphone_core_verify_server_certificates(lc,lp_config_get_int(lc->config,"sip","verify_server_certs",TRUE));
 557         /*start listening on ports*/
 558         linphone_core_set_sip_transports(lc,&tr);
 559
 560         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
 561         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
 562                 const char *hostname=NULL;
 563                 const char *username=NULL;
 564 #ifdef HAVE_GETENV
 565                 hostname=getenv("HOST");
 566                 username=getenv("USER");
 567                 if (hostname==NULL) hostname=getenv("HOSTNAME");
 568 #endif /*HAVE_GETENV*/
 569                 if (hostname==NULL)
 570                         hostname="unknown-host";
 571                 if (username==NULL){
 572                         username="toto";
 573                 }
 574                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
 575                 linphone_core_set_primary_contact(lc,contact);
 576                 ms_free(contact);
 577         }
 578
 579         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
 580         linphone_core_set_guess_hostname(lc,tmp);
 581
 582
 583         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",30);
 584         linphone_core_set_inc_timeout(lc,tmp);
 585
 586         /* get proxies config */
 587         for(i=0;; i++){
 588                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 589                 if (cfg!=NULL){
 590                         linphone_core_add_proxy_config(lc,cfg);
 591                 }else{
 592                         break;
 593                 }
 594         }
 595         /* get the default proxy */
 596         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 597         linphone_core_set_default_proxy_index(lc,tmp);
 598
 599         /* read authentication information */
 600         for(i=0;; i++){
 601                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 602                 if (ai!=NULL){
 603                         linphone_core_add_auth_info(lc,ai);
 604                         linphone_auth_info_destroy(ai);
 605                 }else{
 606                         break;
 607                 }
 608         }
 609         /*this is to filter out unsupported encryption schemes*/
 610         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 611
 612         /*for tuning or test*/
 613         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 614         lc->sip_conf.register_only_when_network_is_up=
 615                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 616         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 617         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
 618         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
 619         sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
 620         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
 621         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
 622         sal_set_dscp(lc->sal,linphone_core_get_sip_dscp(lc));
 623 }
 624
 625 static void rtp_config_read(LinphoneCore *lc)
 626 {
 627         int min_port, max_port;
 628         int jitt_comp;
 629         int nortp_timeout;
 630         bool_t rtp_no_xmit_on_audio_mute;
 631         bool_t adaptive_jitt_comp_enabled;
 632
 633         if (lp_config_get_range(lc->config, "rtp", "audio_rtp_port", &min_port, &max_port, 7078, 7078) == TRUE) {
 634                 if (min_port <= 0) min_port = 1;
 635                 if (max_port > 65535) max_port = 65535;
 636                 linphone_core_set_audio_port_range(lc, min_port, max_port);
 637         } else {
 638                 min_port = lp_config_get_int(lc->config, "rtp", "audio_rtp_port", 7078);
 639                 linphone_core_set_audio_port(lc, min_port);
 640         }
 641
 642         if (lp_config_get_range(lc->config, "rtp", "video_rtp_port", &min_port, &max_port, 9078, 9078) == TRUE) {
 643                 if (min_port <= 0) min_port = 1;
 644                 if (max_port > 65535) max_port = 65535;
 645                 linphone_core_set_video_port_range(lc, min_port, max_port);
 646         } else {
 647                 min_port = lp_config_get_int(lc->config, "rtp", "video_rtp_port", 9078);
 648                 linphone_core_set_video_port(lc, min_port);
 649         }
 650
 651         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 652         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 653         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 654         if (jitt_comp==0) jitt_comp=60;
 655         linphone_core_set_video_jittcomp(lc,jitt_comp);
 656         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 657         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 658         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
 659         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
 660         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
 661         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 662         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
 663         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 664 }
 665
 666 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 667         PayloadType *candidate=NULL;
 668         int i;
 669         PayloadType *it;
 670         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 671                 it=rtp_profile_get_payload(prof,i);
 672                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 673                         && (clock_rate==it->clock_rate || clock_rate<=0)
 674                         && (channels==it->channels || channels<=0) ){
 675                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 676                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 677                                 /*exact match*/
 678                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 679                                 return it;
 680                         }else {
 681                                 if (candidate){
 682                                         if (it->recv_fmtp==NULL) candidate=it;
 683                                 }else candidate=it;
 684                         }
 685                 }
 686         }
 687         if (candidate && recv_fmtp){
 688                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 689         }
 690         return candidate;
 691 }
 692
 693 static bool_t get_codec(LpConfig *config, const char* type, int index, PayloadType **ret){
 694         char codeckey[50];
 695         const char *mime,*fmtp;
 696         int rate,channels,enabled;
 697         PayloadType *pt;
 698
 699         *ret=NULL;
 700         snprintf(codeckey,50,"%s_%i",type,index);
 701         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 702         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 703
 704         rate=lp_config_get_int(config,codeckey,"rate",8000);
 705         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 706         channels=lp_config_get_int(config,codeckey,"channels",0);
 707         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 708         pt=find_payload(&av_profile,mime,rate,channels,fmtp);
 709         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 710         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 711         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 712                         mime,rate,fmtp ? fmtp : "");
 713         *ret=pt;
 714         return TRUE;
 715 }
 716
 717 #define RANK_END 10000
 718
 719 typedef struct codec_desc{
 720         const char *name;
 721         int rate;
 722 }codec_desc_t;
 723
 724 static codec_desc_t codec_pref_order[]={
 725         {"SILK", 16000},
 726         {"speex", 16000},
 727         {"speex", 8000},
 728         {"pcmu",8000},
 729         {"pcma",8000},
 730         {"VP8",90000},
 731         {"H264",90000},
 732         {"MP4V-ES",90000},
 733         {NULL,0}
 734 };
 735
 736 static int find_codec_rank(const char *mime, int clock_rate){
 737         int i;
 738         for(i=0;codec_pref_order[i].name!=NULL;++i){
 739                 if (strcasecmp(codec_pref_order[i].name,mime)==0 && clock_rate==codec_pref_order[i].rate)
 740                         return i;
 741         }
 742         return RANK_END;
 743 }
 744
 745 static int codec_compare(const PayloadType *a, const PayloadType *b){
 746         int ra,rb;
 747         ra=find_codec_rank(a->mime_type,a->clock_rate);
 748         rb=find_codec_rank(b->mime_type,b->clock_rate);
 749         if (ra>rb) return 1;
 750         if (ra<rb) return -1;
 751         return 0;
 752 }
 753
 754 static MSList *add_missing_codecs(SalStreamType mtype, MSList *l){
 755         int i;
 756         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 757                 PayloadType *pt=rtp_profile_get_payload(&av_profile,i);
 758                 if (pt){
 759                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 760                                 pt=NULL;
 761                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 762                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 763                                 pt=NULL;
 764                         }
 765                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 766                                 if (ms_list_find(l,pt)==NULL){
 767                                         /*unranked codecs are disabled by default*/
 768                                         if (find_codec_rank(pt->mime_type, pt->clock_rate)!=RANK_END){
 769                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 770                                         }
 771                                         ms_message("Adding new codec %s/%i with fmtp %s",
 772                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 773                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 774                                 }
 775                         }
 776                 }
 777         }
 778         return l;
 779 }
 780
 781 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 782         MSList *elem;
 783         for (elem=l;elem!=NULL;elem=elem->next){
 784                 PayloadType *ept=(PayloadType*)elem->data;
 785                 if (pt==ept)
 786                         return l;
 787         }
 788         l=ms_list_append(l,pt);
 789         return l;
 790 }
 791
 792 static void codecs_config_read(LinphoneCore *lc)
 793 {
 794         int i;
 795         PayloadType *pt;
 796         MSList *audio_codecs=NULL;
 797         MSList *video_codecs=NULL;
 798         for (i=0;get_codec(lc->config,"audio_codec",i,&pt);i++){
 799                 if (pt){
 800                         if (!ms_filter_codec_supported(pt->mime_type)){
 801                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 802                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 803                 }
 804         }
 805         audio_codecs=add_missing_codecs(SalAudio,audio_codecs);
 806         for (i=0;get_codec(lc->config,"video_codec",i,&pt);i++){
 807                 if (pt){
 808                         if (!ms_filter_codec_supported(pt->mime_type)){
 809                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 810                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 811                 }
 812         }
 813         video_codecs=add_missing_codecs(SalVideo,video_codecs);
 814         linphone_core_set_audio_codecs(lc,audio_codecs);
 815         linphone_core_set_video_codecs(lc,video_codecs);
 816         linphone_core_update_allocated_audio_bandwidth(lc);
 817 }
 818
 819 static void build_video_devices_table(LinphoneCore *lc){
 820         const MSList *elem;
 821         int i;
 822         int ndev;
 823         const char **devices;
 824         if (lc->video_conf.cams)
 825                 ms_free(lc->video_conf.cams);
 826         /* retrieve all video devices */
 827         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 828         ndev=ms_list_size(elem);
 829         devices=ms_malloc((ndev+1)*sizeof(const char *));
 830         for (i=0;elem!=NULL;elem=elem->next,i++){
 831                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 832         }
 833         devices[ndev]=NULL;
 834         lc->video_conf.cams=devices;
 835 }
 836
 837 static void video_config_read(LinphoneCore *lc){
 838 #ifdef VIDEO_ENABLED
 839         int capture, display, self_view;
 840 #endif
 841         const char *str;
 842 #ifdef VIDEO_ENABLED
 843         LinphoneVideoPolicy vpol;
 844         memset(&vpol, 0, sizeof(LinphoneVideoPolicy));
 845 #endif
 846         build_video_devices_table(lc);
 847
 848         str=lp_config_get_string(lc->config,"video","device",NULL);
 849         if (str && str[0]==0) str=NULL;
 850         linphone_core_set_video_device(lc,str);
 851
 852         linphone_core_set_preferred_video_size_by_name(lc,
 853                 lp_config_get_string(lc->config,"video","size","cif"));
 854
 855 #ifdef VIDEO_ENABLED
 856         capture=lp_config_get_int(lc->config,"video","capture",1);
 857         display=lp_config_get_int(lc->config,"video","display",1);
 858         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 859         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 860         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 861         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 862         if(lc->video_conf.displaytype)
 863                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 864
 865         linphone_core_enable_video(lc,capture,display);
 866         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 867         linphone_core_enable_self_view(lc,self_view);
 868         linphone_core_set_video_policy(lc,&vpol);
 869 #endif
 870 }
 871
 872 static void ui_config_read(LinphoneCore *lc)
 873 {
 874         LinphoneFriend *lf;
 875         int i;
 876         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 877                 linphone_core_add_friend(lc,lf);
 878         }
 879         call_logs_read_from_config_file(lc);
 880 }
 881
 882 /*
 883 static void autoreplier_config_init(LinphoneCore *lc)
 884 {
 885         autoreplier_config_t *config=&lc->autoreplier_conf;
 886         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 887         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 888         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 889         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 890         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 891         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 892 }
 893 */
 894
 895 bool_t linphone_core_tunnel_available(void){
 896 #ifdef TUNNEL_ENABLED
 897         return TRUE;
 898 #else
 899         return FALSE;
 900 #endif
 901 }
 902
 903 /**
 904  * Enable adaptive rate control (experimental feature, audio-only).
 905  *
 906  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
 907  * control the output bitrate of the encoders, so that we can adapt to the network conditions and
 908  * available bandwidth.
 909 **/
 910 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
 911         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
 912 }
 913
 914 /**
 915  * Returns whether adaptive rate control is enabled.
 916  *
 917  * See linphone_core_enable_adaptive_rate_control().
 918 **/
 919 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
 920         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
 921 }
 922
 923 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
 924         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
 925 }
 926
 927 /**
 928  * Sets maximum available download bandwidth
 929  *
 930  * @ingroup media_parameters
 931  *
 932  * This is IP bandwidth, in kbit/s.
 933  * This information is used signaled to other parties during
 934  * calls (within SDP messages) so that the remote end can have
 935  * sufficient knowledge to properly configure its audio & video
 936  * codec output bitrate to not overflow available bandwidth.
 937  *
 938  * @param lc the LinphoneCore object
 939  * @param bw the bandwidth in kbits/s, 0 for infinite
 940  */
 941 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
 942         lc->net_conf.download_bw=bw;
 943         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
 944 }
 945
 946 /**
 947  * Sets maximum available upload bandwidth
 948  *
 949  * @ingroup media_parameters
 950  *
 951  * This is IP bandwidth, in kbit/s.
 952  * This information is used by liblinphone together with remote
 953  * side available bandwidth signaled in SDP messages to properly
 954  * configure audio & video codec's output bitrate.
 955  *
 956  * @param lc the LinphoneCore object
 957  * @param bw the bandwidth in kbits/s, 0 for infinite
 958  */
 959 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
 960         lc->net_conf.upload_bw=bw;
 961         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
 962 }
 963
 964 /**
 965  * Retrieve the maximum available download bandwidth.
 966  *
 967  * @ingroup media_parameters
 968  *
 969  * This value was set by linphone_core_set_download_bandwidth().
 970  *
 971 **/
 972 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
 973         return lc->net_conf.download_bw;
 974 }
 975
 976 /**
 977  * Retrieve the maximum available upload bandwidth.
 978  *
 979  * @ingroup media_parameters
 980  *
 981  * This value was set by linphone_core_set_upload_bandwidth().
 982  *
 983 **/
 984 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
 985         return lc->net_conf.upload_bw;
 986 }
 987 /**
 988  * Set audio packetization time linphone expects to receive from peer
 989  */
 990 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
 991         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
 992 }
 993
 994 /**
 995  * Get audio packetization time linphone expects to receive from peer
 996  */
 997 int linphone_core_get_download_ptime(LinphoneCore *lc) {
 998         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
 999 }
1000
1001 /**
1002  * Set audio packetization time linphone will send (in absence of requirement from peer)
1003  * A value of 0 stands for the current codec default packetization time.
1004  *
1005 **/
1006 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
1007         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
1008 }
1009
1010 /**
1011  * Set audio packetization time linphone will send (in absence of requirement from peer)
1012  * A value of 0 stands for the current codec default packetization time.
1013  *
1014 **/
1015 int linphone_core_get_upload_ptime(LinphoneCore *lc){
1016         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
1017 }
1018
1019
1020
1021 /**
1022  * Returns liblinphone's version as a string.
1023  *
1024  * @ingroup misc
1025  *
1026 **/
1027 const char * linphone_core_get_version(void){
1028         return liblinphone_version;
1029 }
1030
1031 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1032         PayloadType *pt;
1033         pt=payload_type_clone(const_pt);
1034         if (number==-1){
1035                 /*look for a free number */
1036                 MSList *elem;
1037                 int i;
1038                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1039                         bool_t already_assigned=FALSE;
1040                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1041                                 PayloadType *it=(PayloadType*)elem->data;
1042                                 if (payload_type_get_number(it)==i){
1043                                         already_assigned=TRUE;
1044                                         break;
1045                                 }
1046                         }
1047                         if (!already_assigned){
1048                                 number=i;
1049                                 lc->dyn_pt=i+1;
1050                                 break;
1051                         }
1052                 }
1053                 if (number==-1){
1054                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1055                 }
1056         }
1057         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1058         payload_type_set_number(pt,number);
1059         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1060         rtp_profile_set_payload(&av_profile,number,pt);
1061         lc->payload_types=ms_list_append(lc->payload_types,pt);
1062 }
1063
1064 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1065         RtpProfile *prof=&av_profile;
1066         int i;
1067         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1068                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1069                 if (pt){
1070                         if (payload_type_get_number(pt)!=i){
1071                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1072                         }
1073                 }
1074         }
1075 }
1076
1077 static void linphone_core_free_payload_types(LinphoneCore *lc){
1078         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1079         ms_list_free(lc->payload_types);
1080         lc->payload_types=NULL;
1081 }
1082
1083 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1084         lc->state=gstate;
1085         if (lc->vtable.global_state_changed){
1086                 lc->vtable.global_state_changed(lc,gstate,message);
1087         }
1088 }
1089 static void misc_config_read (LinphoneCore *lc) {
1090         LpConfig *config=lc->config;
1091     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1092     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1093 }
1094
1095
1096
1097
1098 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1099     const char *factory_config_path, void * userdata)
1100 {
1101         memset (lc, 0, sizeof (LinphoneCore));
1102         lc->data=userdata;
1103         lc->ringstream_autorelease=TRUE;
1104
1105         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1106
1107         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1108         ortp_init();
1109         lc->dyn_pt=96;
1110         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1111         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1112         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1113         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1114         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1115         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1116         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1117         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1118
1119 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1120         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1121          - to workaround potential packet losses
1122          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1123          */
1124         _linphone_core_configure_resolver();
1125 #endif
1126
1127 #ifdef ENABLE_NONSTANDARD_GSM
1128         {
1129                 PayloadType *pt;
1130                 pt=payload_type_clone(&payload_type_gsm);
1131                 pt->clock_rate=11025;
1132                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1133                 pt->clock_rate=22050;
1134                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1135                 payload_type_destroy(pt);
1136         }
1137 #endif
1138
1139 #ifdef VIDEO_ENABLED
1140         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1141         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1142         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1143         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1144         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1145         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1146         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1147         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1148         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1149 #endif
1150
1151         /*add all payload type for which we don't care about the number */
1152         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1153         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1154         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1155         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1156         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1157         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1158         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1159         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1160         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1161         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1162         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1163         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1164         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1165         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1166         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1167         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1168         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1169         linphone_core_handle_static_payloads(lc);
1170
1171         ms_init();
1172         /* create a mediastreamer2 event queue and set it as global */
1173         /* This allows to run event's callback in linphone_core_iterate() */
1174         lc->msevq=ms_event_queue_new();
1175         ms_set_global_event_queue(lc->msevq);
1176
1177         lc->config=lp_config_new(config_path);
1178         if (factory_config_path)
1179                 lp_config_read_file(lc->config,factory_config_path);
1180
1181         lc->sal=sal_init();
1182         sal_set_user_pointer(lc->sal,lc);
1183         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1184
1185         sip_setup_register_all();
1186         sound_config_read(lc);
1187         net_config_read(lc);
1188         rtp_config_read(lc);
1189         codecs_config_read(lc);
1190         sip_config_read(lc); /* this will start eXosip*/
1191         video_config_read(lc);
1192         //autoreplier_config_init(&lc->autoreplier_conf);
1193         lc->presence_mode=LinphoneStatusOnline;
1194         misc_config_read(lc);
1195         ui_config_read(lc);
1196 #ifdef TUNNEL_ENABLED
1197         lc->tunnel=linphone_core_tunnel_new(lc);
1198         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1199 #endif
1200         if (lc->vtable.display_status)
1201                 lc->vtable.display_status(lc,_("Ready"));
1202         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1203         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1204 }
1205
1206 /**
1207  * Instanciates a LinphoneCore object.
1208  * @ingroup initializing
1209  *
1210  * The LinphoneCore object is the primary handle for doing all phone actions.
1211  * It should be unique within your application.
1212  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1213  * @param config_path a path to a config file. If it does not exists it will be created.
1214  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1215  *             become persistent over the life of the LinphoneCore object.
1216  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1217  * @param factory_config_path a path to a read-only config file that can be used to
1218  *        to store hard-coded preference such as proxy settings or internal preferences.
1219  *        The settings in this factory file always override the one in the normal config file.
1220  *        It is OPTIONAL, use NULL if unneeded.
1221  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1222  *        callbacks) using linphone_core_get_user_data().
1223  *
1224 **/
1225 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1226                                                 const char *config_path, const char *factory_config_path, void * userdata)
1227 {
1228         LinphoneCore *core=ms_new(LinphoneCore,1);
1229         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1230         return core;
1231 }
1232
1233 /**
1234  * Returns the list of available audio codecs.
1235  *
1236  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1237  * structure holding the codec information.
1238  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1239  * (such as the order of codecs).
1240 **/
1241 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1242 {
1243         return lc->codecs_conf.audio_codecs;
1244 }
1245
1246 /**
1247  * Returns the list of available video codecs.
1248  *
1249  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1250  * structure holding the codec information.
1251  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1252  * (such as the order of codecs).
1253 **/
1254 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1255 {
1256         return lc->codecs_conf.video_codecs;
1257 }
1258
1259 /**
1260  * Sets the local "from" identity.
1261  *
1262  * @ingroup proxies
1263  * This data is used in absence of any proxy configuration or when no
1264  * default proxy configuration is set. See LinphoneProxyConfig
1265 **/
1266 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1267 {
1268         LinphoneAddress *ctt;
1269
1270         if ((ctt=linphone_address_new(contact))==0) {
1271                 ms_error("Bad contact url: %s",contact);
1272                 return -1;
1273         }
1274         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1275         lc->sip_conf.contact=ms_strdup(contact);
1276         if (lc->sip_conf.guessed_contact!=NULL){
1277                 ms_free(lc->sip_conf.guessed_contact);
1278                 lc->sip_conf.guessed_contact=NULL;
1279         }
1280         linphone_address_destroy(ctt);
1281         return 0;
1282 }
1283
1284
1285 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1286 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1287         const char *ip;
1288         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1289             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1290                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1291                 return;
1292         }
1293         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1294                 return;
1295         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1296         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1297 }
1298
1299 static void update_primary_contact(LinphoneCore *lc){
1300         char *guessed=NULL;
1301         char tmp[LINPHONE_IPADDR_SIZE];
1302
1303         LinphoneAddress *url;
1304         if (lc->sip_conf.guessed_contact!=NULL){
1305                 ms_free(lc->sip_conf.guessed_contact);
1306                 lc->sip_conf.guessed_contact=NULL;
1307         }
1308         url=linphone_address_new(lc->sip_conf.contact);
1309         if (!url){
1310                 ms_error("Could not parse identity contact !");
1311                 url=linphone_address_new("sip:unknown@unkwownhost");
1312         }
1313         linphone_core_get_local_ip(lc, NULL, tmp);
1314         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1315                 ms_warning("Local loopback network only !");
1316                 lc->sip_conf.loopback_only=TRUE;
1317         }else lc->sip_conf.loopback_only=FALSE;
1318         linphone_address_set_domain(url,tmp);
1319         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1320         guessed=linphone_address_as_string(url);
1321         lc->sip_conf.guessed_contact=guessed;
1322         linphone_address_destroy(url);
1323 }
1324
1325 /**
1326  * Returns the default identity when no proxy configuration is used.
1327  *
1328  * @ingroup proxies
1329 **/
1330 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1331         char *identity;
1332
1333         if (lc->sip_conf.guess_hostname){
1334                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1335                         update_primary_contact(lc);
1336                 }
1337                 identity=lc->sip_conf.guessed_contact;
1338         }else{
1339                 identity=lc->sip_conf.contact;
1340         }
1341         return identity;
1342 }
1343
1344 /**
1345  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1346  *
1347  * @ingroup proxies
1348 **/
1349 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1350         lc->sip_conf.guess_hostname=val;
1351 }
1352
1353 /**
1354  * Returns TRUE if hostname part of primary contact is guessed automatically.
1355  *
1356  * @ingroup proxies
1357 **/
1358 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1359         return lc->sip_conf.guess_hostname;
1360 }
1361
1362 /**
1363  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1364  * instead of const char*
1365  *
1366  * @ingroup proxies
1367 **/
1368 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1369         return linphone_address_new(linphone_core_get_primary_contact(lc));
1370 }
1371
1372 /**
1373  * Sets the list of audio codecs.
1374  *
1375  * @ingroup media_parameters
1376  * The list is taken by the LinphoneCore thus the application should not free it.
1377  * This list is made of struct PayloadType describing the codec parameters.
1378 **/
1379 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1380 {
1381         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1382         lc->codecs_conf.audio_codecs=codecs;
1383         _linphone_core_codec_config_write(lc);
1384         return 0;
1385 }
1386
1387 /**
1388  * Sets the list of video codecs.
1389  *
1390  * @ingroup media_parameters
1391  * The list is taken by the LinphoneCore thus the application should not free it.
1392  * This list is made of struct PayloadType describing the codec parameters.
1393 **/
1394 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1395 {
1396         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1397         lc->codecs_conf.video_codecs=codecs;
1398         _linphone_core_codec_config_write(lc);
1399         return 0;
1400 }
1401
1402 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1403 {
1404         return lc->friends;
1405 }
1406
1407 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1408 {
1409         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1410 }
1411
1412 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1413 {
1414         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1415 }
1416
1417 /**
1418  * Returns the nominal audio jitter buffer size in milliseconds.
1419  *
1420  * @ingroup media_parameters
1421 **/
1422 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1423 {
1424         return lc->rtp_conf.audio_jitt_comp;
1425 }
1426
1427 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1428 {
1429         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1430 }
1431
1432 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1433 {
1434         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1435 }
1436
1437 /**
1438  * Returns the nominal video jitter buffer size in milliseconds.
1439  *
1440  * @ingroup media_parameters
1441 **/
1442 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1443 {
1444         return lc->rtp_conf.video_jitt_comp;
1445 }
1446
1447 /**
1448  * Returns the UDP port used for audio streaming.
1449  *
1450  * @ingroup network_parameters
1451 **/
1452 int linphone_core_get_audio_port(const LinphoneCore *lc)
1453 {
1454         return lc->rtp_conf.audio_rtp_min_port;
1455 }
1456
1457 /**
1458  * Get the audio port range from which is randomly chosen the UDP port used for audio streaming.
1459  *
1460  * @ingroup network_parameters
1461  */
1462 void linphone_core_get_audio_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1463 {
1464         *min_port = lc->rtp_conf.audio_rtp_min_port;
1465         *max_port = lc->rtp_conf.audio_rtp_max_port;
1466 }
1467
1468 /**
1469  * Returns the UDP port used for video streaming.
1470  *
1471  * @ingroup network_parameters
1472 **/
1473 int linphone_core_get_video_port(const LinphoneCore *lc){
1474         return lc->rtp_conf.video_rtp_min_port;
1475 }
1476
1477 /**
1478  * Get the video port range from which is randomly chosen the UDP port used for video streaming.
1479  *
1480  * @ingroup network_parameters
1481  */
1482 void linphone_core_get_video_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1483 {
1484         *min_port = lc->rtp_conf.video_rtp_min_port;
1485         *max_port = lc->rtp_conf.video_rtp_max_port;
1486 }
1487
1488
1489 /**
1490  * Returns the value in seconds of the no-rtp timeout.
1491  *
1492  * @ingroup media_parameters
1493  * When no RTP or RTCP packets have been received for a while
1494  * LinphoneCore will consider the call is broken (remote end crashed or
1495  * disconnected from the network), and thus will terminate the call.
1496  * The no-rtp timeout is the duration above which the call is considered broken.
1497 **/
1498 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1499         return lc->rtp_conf.nortp_timeout;
1500 }
1501
1502 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1503         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1504 }
1505
1506 /**
1507  * Sets the nominal audio jitter buffer size in milliseconds.
1508  *
1509  * @ingroup media_parameters
1510 **/
1511 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1512 {
1513         lc->rtp_conf.audio_jitt_comp=value;
1514 }
1515
1516 /**
1517  * Sets the nominal video jitter buffer size in milliseconds.
1518  *
1519  * @ingroup media_parameters
1520 **/
1521 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1522 {
1523         lc->rtp_conf.video_jitt_comp=value;
1524 }
1525
1526 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1527         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1528 }
1529
1530 /**
1531  * Sets the UDP port used for audio streaming.
1532  *
1533  * @ingroup network_parameters
1534 **/
1535 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1536 {
1537         lc->rtp_conf.audio_rtp_min_port=lc->rtp_conf.audio_rtp_max_port=port;
1538 }
1539
1540 /**
1541  * Sets the UDP port range from which to randomly select the port used for audio streaming.
1542  */
1543 void linphone_core_set_audio_port_range(LinphoneCore *lc, int min_port, int max_port)
1544 {
1545         lc->rtp_conf.audio_rtp_min_port=min_port;
1546         lc->rtp_conf.audio_rtp_max_port=max_port;
1547 }
1548
1549 /**
1550  * Sets the UDP port used for video streaming.
1551  *
1552  * @ingroup network_parameters
1553 **/
1554 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1555         lc->rtp_conf.video_rtp_min_port=lc->rtp_conf.video_rtp_max_port=port;
1556 }
1557
1558 /**
1559  * Sets the UDP port range from which to randomly select the port used for video streaming.
1560  */
1561 void linphone_core_set_video_port_range(LinphoneCore *lc, int min_port, int max_port)
1562 {
1563         lc->rtp_conf.video_rtp_min_port=min_port;
1564         lc->rtp_conf.video_rtp_max_port=max_port;
1565 }
1566
1567 /**
1568  * Sets the no-rtp timeout value in seconds.
1569  *
1570  * @ingroup media_parameters
1571  * See linphone_core_get_nortp_timeout() for details.
1572 **/
1573 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1574         lc->rtp_conf.nortp_timeout=nortp_timeout;
1575 }
1576
1577 /**
1578  * Indicates whether SIP INFO is used for sending digits.
1579  *
1580  * @ingroup media_parameters
1581 **/
1582 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1583 {
1584         return lc->sip_conf.use_info;
1585 }
1586
1587 /**
1588  * Sets whether SIP INFO is to be used for sending digits.
1589  *
1590  * @ingroup media_parameters
1591 **/
1592 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1593 {
1594         lc->sip_conf.use_info=use_info;
1595 }
1596
1597 /**
1598  * Indicates whether RFC2833 is used for sending digits.
1599  *
1600  * @ingroup media_parameters
1601 **/
1602 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1603 {
1604         return lc->sip_conf.use_rfc2833;
1605 }
1606
1607 /**
1608  * Sets whether RFC2833 is to be used for sending digits.
1609  *
1610  * @ingroup media_parameters
1611 **/
1612 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1613 {
1614         lc->sip_conf.use_rfc2833=use_rfc2833;
1615 }
1616
1617 /**
1618  * Returns the UDP port used by SIP.
1619  *
1620  * Deprecated: use linphone_core_get_sip_transports() instead.
1621  * @ingroup network_parameters
1622 **/
1623 int linphone_core_get_sip_port(LinphoneCore *lc)
1624 {
1625         LCSipTransports *tr=&lc->sip_conf.transports;
1626         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1627 }
1628
1629 static char _ua_name[64]="Linphone";
1630 static char _ua_version[64]=LINPHONE_VERSION;
1631
1632 #ifdef HAVE_EXOSIP_GET_VERSION
1633 extern const char *eXosip_get_version();
1634 #endif
1635
1636 static void apply_user_agent(LinphoneCore *lc){
1637         char ua_string[256];
1638         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1639 #ifdef HAVE_EXOSIP_GET_VERSION
1640                  eXosip_get_version()
1641 #else
1642                  "unknown"
1643 #endif
1644         );
1645         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1646 }
1647
1648 /**
1649  * Sets the user agent string used in SIP messages.
1650  *
1651  * @ingroup misc
1652 **/
1653 void linphone_core_set_user_agent(const char *name, const char *ver){
1654         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1655         strncpy(_ua_version,ver,sizeof(_ua_version));
1656 }
1657
1658 const char *linphone_core_get_user_agent_name(void){
1659         return _ua_name;
1660 }
1661
1662 const char *linphone_core_get_user_agent_version(void){
1663         return _ua_version;
1664 }
1665
1666 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1667         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1668         ms_warning("%s",msg);
1669         if (lc->vtable.display_warning)
1670                 lc->vtable.display_warning(lc,msg);
1671         ms_free(msg);
1672 }
1673
1674 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1675         return
1676                 tr2->udp_port==tr1->udp_port &&
1677                 tr2->tcp_port==tr1->tcp_port &&
1678                 tr2->dtls_port==tr1->dtls_port &&
1679                 tr2->tls_port==tr1->tls_port;
1680 }
1681
1682 static int apply_transports(LinphoneCore *lc){
1683         Sal *sal=lc->sal;
1684         const char *anyaddr;
1685         LCSipTransports *tr=&lc->sip_conf.transports;
1686
1687         /*first of all invalidate all current registrations so that we can register again with new transports*/
1688         __linphone_core_invalidate_registers(lc);
1689
1690         if (lc->sip_conf.ipv6_enabled)
1691                 anyaddr="::0";
1692         else
1693                 anyaddr="0.0.0.0";
1694
1695         sal_unlisten_ports(sal);
1696         if (tr->udp_port>0){
1697                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1698                         transport_error(lc,"udp",tr->udp_port);
1699                         return -1;
1700                 }
1701         }
1702         if (tr->tcp_port>0){
1703                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1704                         transport_error(lc,"tcp",tr->tcp_port);
1705                 }
1706         }
1707         if (tr->tls_port>0){
1708                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1709                         transport_error(lc,"tls",tr->tls_port);
1710                 }
1711         }
1712         apply_user_agent(lc);
1713         return 0;
1714 }
1715
1716 /**
1717  * Sets the ports to be used for each of transport (UDP or TCP)
1718  *
1719  * A zero value port for a given transport means the transport
1720  * is not used.
1721  *
1722  * @ingroup network_parameters
1723 **/
1724 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1725
1726         if (transports_unchanged(tr,&lc->sip_conf.transports))
1727                 return 0;
1728         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1729
1730         if (linphone_core_ready(lc)){
1731                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1732                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1733                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1734         }
1735
1736         if (lc->sal==NULL) return 0;
1737         return apply_transports(lc);
1738 }
1739
1740 /**
1741  * Retrieves the ports used for each transport (udp, tcp).
1742  * A zero value port for a given transport means the transport
1743  * is not used.
1744  * @ingroup network_parameters
1745 **/
1746 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1747         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1748         return 0;
1749 }
1750
1751 /**
1752  * Sets the UDP port to be used by SIP.
1753  *
1754  * Deprecated: use linphone_core_set_sip_transports() instead.
1755  * @ingroup network_parameters
1756 **/
1757 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1758 {
1759         LCSipTransports tr;
1760         memset(&tr,0,sizeof(tr));
1761         tr.udp_port=port;
1762         linphone_core_set_sip_transports (lc,&tr);
1763 }
1764
1765 /**
1766  * Returns TRUE if IPv6 is enabled.
1767  *
1768  * @ingroup network_parameters
1769  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1770 **/
1771 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1772         return lc->sip_conf.ipv6_enabled;
1773 }
1774
1775 /**
1776  * Turns IPv6 support on or off.
1777  *
1778  * @ingroup network_parameters
1779  *
1780  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1781  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1782  * By default IPv6 support is off.
1783 **/
1784 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1785         if (lc->sip_conf.ipv6_enabled!=val){
1786                 lc->sip_conf.ipv6_enabled=val;
1787                 if (lc->sal){
1788                         /* we need to restart eXosip */
1789                         apply_transports(lc);
1790                 }
1791         }
1792 }
1793
1794
1795 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1796         static time_t last_check=0;
1797         static bool_t last_status=FALSE;
1798         char result[LINPHONE_IPADDR_SIZE];
1799         bool_t new_status=last_status;
1800
1801         /* only do the network up checking every five seconds */
1802         if (last_check==0 || (curtime-last_check)>=5){
1803                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1804                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1805                         new_status=TRUE;
1806                 }else new_status=FALSE;
1807                 last_check=curtime;
1808                 if (new_status!=last_status) {
1809                         if (new_status){
1810                                 ms_message("New local ip address is %s",result);
1811                         }
1812                         set_network_reachable(lc,new_status, curtime);
1813                         last_status=new_status;
1814                 }
1815         }
1816 }
1817
1818 static void proxy_update(LinphoneCore *lc){
1819         MSList *elem,*next;
1820         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1821         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1822                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1823                 next=elem->next;
1824                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1825                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1826                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1827                         linphone_proxy_config_destroy(cfg);
1828                 }
1829         }
1830 }
1831
1832 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1833         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1834         if (lf!=NULL){
1835                 lf->info=info;
1836                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1837                 if (lc->vtable.buddy_info_updated)
1838                         lc->vtable.buddy_info_updated(lc,lf);
1839         }else{
1840                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1841         }
1842 }
1843
1844 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1845         MSList *elem;
1846         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1847         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1848                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1849                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1850                         if (req->results!=NULL){
1851                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1852                                 ms_list_free(req->results);
1853                                 req->results=NULL;
1854                                 assign_buddy_info(lc,i);
1855                         }
1856                         sip_setup_context_buddy_lookup_free(ctx,req);
1857                         elem->data=NULL;
1858                 }
1859         }
1860         /*purge completed requests */
1861         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1862                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1863         }
1864 }
1865
1866 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1867         const MSList *elem;
1868         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1869         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1870                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1871                 if (lf->info==NULL){
1872                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1873                                 if (linphone_address_get_username(lf->uri)!=NULL){
1874                                         BuddyLookupRequest *req;
1875                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1876                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1877                                         buddy_lookup_request_set_key(req,tmp);
1878                                         buddy_lookup_request_set_max_results(req,1);
1879                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1880                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
1881                                         ms_free(tmp);
1882                                 }
1883                         }
1884                 }
1885         }
1886 }
1887
1888 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
1889         LinphoneProxyConfig *cfg=NULL;
1890         linphone_core_get_default_proxy(lc,&cfg);
1891         if (cfg){
1892                 if (lc->bl_refresh){
1893                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1894                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
1895                                 linphone_core_grab_buddy_infos(lc,cfg);
1896                                 lc->bl_refresh=FALSE;
1897                         }
1898                 }
1899                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
1900         }
1901 }
1902
1903 /**
1904  * Main loop function. It is crucial that your application call it periodically.
1905  *
1906  * @ingroup initializing
1907  * linphone_core_iterate() performs various backgrounds tasks:
1908  * - receiving of SIP messages
1909  * - handles timers and timeout
1910  * - performs registration to proxies
1911  * - authentication retries
1912  * The application MUST call this function periodically, in its main loop.
1913  * Be careful that this function must be called from the same thread as
1914  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
1915  * serialized with a mutex.
1916 **/
1917 void linphone_core_iterate(LinphoneCore *lc){
1918         MSList *calls;
1919         LinphoneCall *call;
1920         time_t curtime=time(NULL);
1921         int elapsed;
1922         bool_t one_second_elapsed=FALSE;
1923
1924         if (curtime-lc->prevtime>=1){
1925                 lc->prevtime=curtime;
1926                 one_second_elapsed=TRUE;
1927         }
1928
1929         if (lc->ecc!=NULL){
1930                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
1931                 if (ecs!=LinphoneEcCalibratorInProgress){
1932                         if (lc->ecc->cb)
1933                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
1934                         if (ecs==LinphoneEcCalibratorDone){
1935                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
1936                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-(len/2),0));
1937                         }
1938                         ec_calibrator_destroy(lc->ecc);
1939                         lc->ecc=NULL;
1940                 }
1941         }
1942
1943         if (lc->preview_finished){
1944                 lc->preview_finished=0;
1945                 ring_stop(lc->ringstream);
1946                 lc->ringstream=NULL;
1947                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
1948         }
1949
1950         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
1951             && (curtime-lc->dmfs_playing_start_time)>5){
1952                 ring_stop(lc->ringstream);
1953                 lc->ringstream=NULL;
1954                 lc->dmfs_playing_start_time=0;
1955         }
1956
1957         sal_iterate(lc->sal);
1958         if (lc->msevq) ms_event_queue_pump(lc->msevq);
1959         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
1960
1961         proxy_update(lc);
1962
1963         //we have to iterate for each call
1964         calls= lc->calls;
1965         while(calls!= NULL){
1966                 call = (LinphoneCall *)calls->data;
1967                  /* get immediately a reference to next one in case the one
1968                  we are going to examine is destroy and removed during
1969                  linphone_core_start_invite() */
1970                 calls=calls->next;
1971                 linphone_call_background_tasks(call,one_second_elapsed);
1972                 if (call->state==LinphoneCallOutgoingInit && (curtime-call->start_time>=2)){
1973                         /*start the call even if the OPTIONS reply did not arrive*/
1974                         if (call->ice_session != NULL) {
1975                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
1976                                                 ,linphone_core_get_stun_server(lc));
1977                                 linphone_call_delete_ice_session(call);
1978                                 linphone_call_stop_media_streams_for_ice_gathering(call);
1979                         }
1980                         linphone_core_start_invite(lc,call);
1981                 }
1982                 if (call->state==LinphoneCallIncomingReceived){
1983                         elapsed=curtime-call->start_time;
1984                         ms_message("incoming call ringing for %i seconds",elapsed);
1985                         if (elapsed>lc->sip_conf.inc_timeout){
1986                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
1987                                 call->log->status=LinphoneCallMissed;
1988                                 call->reason=LinphoneReasonNotAnswered;
1989                                 linphone_core_terminate_call(lc,call);
1990                         }
1991                 }
1992         }
1993
1994         if (linphone_core_video_preview_enabled(lc)){
1995                 if (lc->previewstream==NULL && lc->calls==NULL)
1996                         toggle_video_preview(lc,TRUE);
1997 #ifdef VIDEO_ENABLED
1998                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
1999 #endif
2000         }else{
2001                 if (lc->previewstream!=NULL)
2002                         toggle_video_preview(lc,FALSE);
2003         }
2004
2005         linphone_core_run_hooks(lc);
2006         linphone_core_do_plugin_tasks(lc);
2007
2008         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
2009             (curtime-lc->netup_time)>3){
2010                 linphone_core_send_initial_subscribes(lc);
2011                 lc->initial_subscribes_sent=TRUE;
2012         }
2013
2014         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
2015                 lp_config_sync(lc->config);
2016         }
2017 }
2018
2019 /**
2020  * Interpret a call destination as supplied by the user, and returns a fully qualified
2021  * LinphoneAddress.
2022  *
2023  * A sip address should look like DisplayName <sip:username@domain:port> .
2024  * Basically this function performs the following tasks
2025  * - if a phone number is entered, prepend country prefix of the default proxy
2026  *   configuration, eventually escape the '+' by 00.
2027  * - if no domain part is supplied, append the domain name of the default proxy
2028  * - if no sip: is present, prepend it
2029  *
2030  * The result is a syntaxically correct SIP address.
2031 **/
2032
2033 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
2034         enum_lookup_res_t *enumres=NULL;
2035         char *enum_domain=NULL;
2036         LinphoneProxyConfig *proxy=lc->default_proxy;;
2037         char *tmpurl;
2038         LinphoneAddress *uri;
2039
2040         if (is_enum(url,&enum_domain)){
2041                 if (lc->vtable.display_status!=NULL)
2042                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
2043                 if (enum_lookup(enum_domain,&enumres)<0){
2044                         if (lc->vtable.display_status!=NULL)
2045                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
2046                         ms_free(enum_domain);
2047                         return NULL;
2048                 }
2049                 ms_free(enum_domain);
2050                 tmpurl=enumres->sip_address[0];
2051                 uri=linphone_address_new(tmpurl);
2052                 enum_lookup_res_free(enumres);
2053                 return uri;
2054         }
2055         /* check if we have a "sip:" */
2056         if (strstr(url,"sip:")==NULL){
2057                 /* this doesn't look like a true sip uri */
2058                 if (strchr(url,'@')!=NULL){
2059                         /* seems like sip: is missing !*/
2060                         tmpurl=ms_strdup_printf("sip:%s",url);
2061                         uri=linphone_address_new(tmpurl);
2062                         ms_free(tmpurl);
2063                         if (uri){
2064                                 return uri;
2065                         }
2066                 }
2067
2068                 if (proxy!=NULL){
2069                         /* append the proxy domain suffix */
2070                         const char *identity=linphone_proxy_config_get_identity(proxy);
2071                         char normalized_username[128];
2072                         uri=linphone_address_new(identity);
2073                         if (uri==NULL){
2074                                 return NULL;
2075                         }
2076                         linphone_address_set_display_name(uri,NULL);
2077                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2078                                                                 sizeof(normalized_username));
2079                         linphone_address_set_username(uri,normalized_username);
2080                         return uri;
2081                 }else return NULL;
2082         }
2083         uri=linphone_address_new(url);
2084         if (uri!=NULL){
2085                 return uri;
2086         }
2087         /* else we could not do anything with url given by user, so display an error */
2088         if (lc->vtable.display_warning!=NULL){
2089                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2090         }
2091         return NULL;
2092 }
2093
2094 /**
2095  * Returns the default identity SIP address.
2096  *
2097  * @ingroup proxies
2098  * This is an helper function:
2099  *
2100  * If no default proxy is set, this will return the primary contact (
2101  * see linphone_core_get_primary_contact() ). If a default proxy is set
2102  * it returns the registered identity on the proxy.
2103 **/
2104 const char * linphone_core_get_identity(LinphoneCore *lc){
2105         LinphoneProxyConfig *proxy=NULL;
2106         const char *from;
2107         linphone_core_get_default_proxy(lc,&proxy);
2108         if (proxy!=NULL) {
2109                 from=linphone_proxy_config_get_identity(proxy);
2110         }else from=linphone_core_get_primary_contact(lc);
2111         return from;
2112 }
2113
2114 const char * linphone_core_get_route(LinphoneCore *lc){
2115         LinphoneProxyConfig *proxy=NULL;
2116         const char *route=NULL;
2117         linphone_core_get_default_proxy(lc,&proxy);
2118         if (proxy!=NULL) {
2119                 route=linphone_proxy_config_get_route(proxy);
2120         }
2121         return route;
2122 }
2123
2124 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2125         if (call->refer_pending){
2126                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2127                 LinphoneCall *newcall;
2128                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2129                 cp->referer=call;
2130                 ms_message("Starting new call to refered address %s",call->refer_to);
2131                 call->refer_pending=FALSE;
2132                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2133                 linphone_call_params_destroy(cp);
2134                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2135         }
2136 }
2137
2138 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2139         if (referer->op!=NULL){
2140                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2141         }
2142 }
2143
2144 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2145         const MSList *elem;
2146         LinphoneProxyConfig *found_cfg=NULL;
2147         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2148
2149         /*always prefer the default proxy if it is matching the destination uri*/
2150         if (default_cfg){
2151                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2152                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2153                         return default_cfg;
2154         }
2155
2156         /*otherwise iterate through the other proxy config and return the first matching*/
2157         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2158                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2159                 const char *domain=linphone_proxy_config_get_domain(cfg);
2160                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2161                         found_cfg=cfg;
2162                         break;
2163                 }
2164         }
2165         return found_cfg;
2166 }
2167
2168 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2169         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2170         if (cfg==NULL)
2171                 linphone_core_get_default_proxy (lc,&cfg);
2172         if (cfg!=NULL){
2173                 if (route) *route=linphone_proxy_config_get_route(cfg);
2174                 return linphone_proxy_config_get_identity (cfg);
2175         }
2176         return linphone_core_get_primary_contact (lc);
2177 }
2178
2179 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2180         LinphoneAddress *ctt;
2181         const char *localip=call->localip;
2182
2183         /* first use user's supplied ip address if asked*/
2184         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2185                 ctt=linphone_core_get_primary_contact_parsed(lc);
2186                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2187                         linphone_core_get_nat_address_resolved(lc));
2188         }
2189
2190         /* if already choosed, don't change it */
2191         if (call->op && sal_op_get_contact(call->op)!=NULL){
2192                 return NULL;
2193         }
2194         /* if the ping OPTIONS request succeeded use the contact guessed from the
2195          received, rport*/
2196         if (call->ping_op){
2197                 const char *guessed=sal_op_get_contact(call->ping_op);
2198                 if (guessed){
2199                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2200                         return ms_strdup(guessed);
2201                 }
2202         }
2203
2204         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2205         if (dest_proxy && dest_proxy->op){
2206                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2207                 if (fixed_contact) {
2208                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2209                         return ms_strdup(fixed_contact);
2210                 }
2211         }
2212
2213         ctt=linphone_core_get_primary_contact_parsed(lc);
2214
2215         if (ctt!=NULL){
2216                 char *ret;
2217                 /*otherwise use supllied localip*/
2218                 linphone_address_set_domain(ctt,localip);
2219                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2220                 ret=linphone_address_as_string_uri_only(ctt);
2221                 linphone_address_destroy(ctt);
2222                 ms_message("Contact has been fixed using local ip to %s",ret);
2223                 return ret;
2224         }
2225         return NULL;
2226 }
2227
2228 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2229         bool_t ice_ready = FALSE;
2230         bool_t ping_ready = FALSE;
2231
2232         if (call->ice_session != NULL) {
2233                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2234         } else {
2235                 ice_ready = TRUE;
2236         }
2237         if (call->ping_op != NULL) {
2238                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2239         } else {
2240                 ping_ready = TRUE;
2241         }
2242
2243         if ((ice_ready == TRUE) && (ping_ready == TRUE)) {
2244                 return linphone_core_start_invite(lc, call);
2245         }
2246         return 0;
2247 }
2248
2249 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2250         int err;
2251         char *contact;
2252         char *real_url,*barmsg;
2253         char *from;
2254         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2255
2256         /*try to be best-effort in giving real local or routable contact address */
2257         contact=get_fixed_contact(lc,call,dest_proxy);
2258         if (contact){
2259                 sal_op_set_contact(call->op, contact);
2260                 ms_free(contact);
2261         }
2262         linphone_core_stop_dtmf_stream(lc);
2263         linphone_call_init_media_streams(call);
2264         if (lc->ringstream==NULL)
2265                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2266         call->localdesc=create_local_media_description(lc,call);
2267         if (!lc->sip_conf.sdp_200_ack){
2268                 call->media_pending=TRUE;
2269                 sal_call_set_local_media_description(call->op,call->localdesc);
2270         }
2271         real_url=linphone_address_as_string(call->log->to);
2272         from=linphone_address_as_string(call->log->from);
2273         err=sal_call(call->op,from,real_url);
2274         call->log->call_id=ms_strdup(sal_op_get_call_id(call->op)); /*must be known at that time*/
2275
2276         if (lc->sip_conf.sdp_200_ack){
2277                 call->media_pending=TRUE;
2278                 sal_call_set_local_media_description(call->op,call->localdesc);
2279         }
2280         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2281         if (lc->vtable.display_status!=NULL)
2282                 lc->vtable.display_status(lc,barmsg);
2283         ms_free(barmsg);
2284
2285         if (err<0){
2286                 if (lc->vtable.display_status!=NULL)
2287                         lc->vtable.display_status(lc,_("Could not call"));
2288                 linphone_call_stop_media_streams(call);
2289                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2290         }else {
2291                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2292         }
2293         ms_free(real_url);
2294         ms_free(from);
2295         return err;
2296 }
2297
2298 /**
2299  * Initiates an outgoing call
2300  *
2301  * @ingroup call_control
2302  * @param lc the LinphoneCore object
2303  * @param url the destination of the call (sip address, or phone number).
2304  *
2305  * The application doesn't own a reference to the returned LinphoneCall object.
2306  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2307  *
2308  * @return a LinphoneCall object or NULL in case of failure
2309 **/
2310 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2311         LinphoneCall *call;
2312         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2313         p->has_video &= !!lc->video_policy.automatically_initiate;
2314         call=linphone_core_invite_with_params(lc,url,p);
2315         linphone_call_params_destroy(p);
2316         return call;
2317 }
2318
2319
2320 /**
2321  * Initiates an outgoing call according to supplied call parameters
2322  *
2323  * @ingroup call_control
2324  * @param lc the LinphoneCore object
2325  * @param url the destination of the call (sip address, or phone number).
2326  * @param p call parameters
2327  *
2328  * The application doesn't own a reference to the returned LinphoneCall object.
2329  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2330  *
2331  * @return a LinphoneCall object or NULL in case of failure
2332 **/
2333 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2334         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2335         if (addr){
2336                 LinphoneCall *call;
2337                 call=linphone_core_invite_address_with_params(lc,addr,p);
2338                 linphone_address_destroy(addr);
2339                 return call;
2340         }
2341         return NULL;
2342 }
2343
2344 /**
2345  * Initiates an outgoing call given a destination LinphoneAddress
2346  *
2347  * @ingroup call_control
2348  * @param lc the LinphoneCore object
2349  * @param addr the destination of the call (sip address).
2350  *
2351  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2352  * created by linphone_core_interpret_url().
2353  * The application doesn't own a reference to the returned LinphoneCall object.
2354  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2355  *
2356  * @return a LinphoneCall object or NULL in case of failure
2357 **/
2358 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2359         LinphoneCall *call;
2360         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2361         p->has_video &= !!lc->video_policy.automatically_initiate;
2362         call=linphone_core_invite_address_with_params (lc,addr,p);
2363         linphone_call_params_destroy(p);
2364         return call;
2365 }
2366
2367
2368 /**
2369  * Initiates an outgoing call given a destination LinphoneAddress
2370  *
2371  * @ingroup call_control
2372  * @param lc the LinphoneCore object
2373  * @param addr the destination of the call (sip address).
2374         @param params call parameters
2375  *
2376  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2377  * created by linphone_core_interpret_url().
2378  * The application doesn't own a reference to the returned LinphoneCall object.
2379  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2380  *
2381  * @return a LinphoneCall object or NULL in case of failure
2382 **/
2383 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2384 {
2385         const char *route=NULL;
2386         const char *from=NULL;
2387         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2388         LinphoneAddress *parsed_url2=NULL;
2389         char *real_url=NULL;
2390         LinphoneCall *call;
2391         bool_t use_ice = FALSE;
2392
2393         linphone_core_preempt_sound_resources(lc);
2394
2395         if(!linphone_core_can_we_add_call(lc)){
2396                 if (lc->vtable.display_warning)
2397                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2398                 return NULL;
2399         }
2400         linphone_core_get_default_proxy(lc,&proxy);
2401         route=linphone_core_get_route(lc);
2402
2403         real_url=linphone_address_as_string(addr);
2404         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2405
2406         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2407                 ms_message("Overriding default proxy setting for this call:");
2408                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2409         }
2410
2411         if (dest_proxy!=NULL)
2412                 from=linphone_proxy_config_get_identity(dest_proxy);
2413         else if (proxy!=NULL)
2414                 from=linphone_proxy_config_get_identity(proxy);
2415
2416         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2417         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2418
2419         parsed_url2=linphone_address_new(from);
2420
2421         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2422         call->dest_proxy=dest_proxy;
2423         sal_op_set_route(call->op,route);
2424
2425         if(linphone_core_add_call(lc,call)!= 0)
2426         {
2427                 ms_warning("we had a problem in adding the call into the invite ... weird");
2428                 linphone_call_unref(call);
2429                 return NULL;
2430         }
2431         /* this call becomes now the current one*/
2432         lc->current_call=call;
2433         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2434         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2435                 /* Defer the start of the call after the ICE gathering process. */
2436                 linphone_call_init_media_streams(call);
2437                 linphone_call_start_media_streams_for_ice_gathering(call);
2438                 call->start_time=time(NULL);
2439                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2440                         /* Ice candidates gathering failed, proceed with the call anyway. */
2441                         linphone_call_delete_ice_session(call);
2442                         linphone_call_stop_media_streams_for_ice_gathering(call);
2443                 } else {
2444                         use_ice = TRUE;
2445                 }
2446         }
2447
2448         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2449                 /*defer the start of the call after the OPTIONS ping*/
2450                 call->ping_replied=FALSE;
2451                 call->ping_op=sal_op_new(lc->sal);
2452                 sal_ping(call->ping_op,from,real_url);
2453                 sal_op_set_user_pointer(call->ping_op,call);
2454                 call->start_time=time(NULL);
2455         }else{
2456                 if (use_ice==FALSE) linphone_core_start_invite(lc,call);
2457         }
2458
2459         if (real_url!=NULL) ms_free(real_url);
2460         return call;
2461 }
2462
2463 /**
2464  * Performs a simple call transfer to the specified destination.
2465  *
2466  * The remote endpoint is expected to issue a new call to the specified destination.
2467  * The current call remains active and thus can be later paused or terminated.
2468 **/
2469 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2470 {
2471         char *real_url=NULL;
2472         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2473
2474         if (!real_parsed_url){
2475                 /* bad url */
2476                 return -1;
2477         }
2478         if (call==NULL){
2479                 ms_warning("No established call to refer.");
2480                 return -1;
2481         }
2482         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2483         real_url=linphone_address_as_string (real_parsed_url);
2484         sal_call_refer(call->op,real_url);
2485         ms_free(real_url);
2486         linphone_address_destroy(real_parsed_url);
2487         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2488         return 0;
2489 }
2490
2491 /**
2492  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2493  * @param lc linphone core object
2494  * @param call a running call you want to transfer
2495  * @param dest a running call whose remote person will receive the transfer
2496  *
2497  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2498  * The destination call is a call previously established to introduce the transfered person.
2499  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2500  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2501  * close the call with us (the 'dest' call).
2502 **/
2503 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2504         int result = sal_call_refer_with_replaces (call->op,dest->op);
2505         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2506         return result;
2507 }
2508
2509 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2510         LinphoneCall *call = linphone_core_get_current_call(lc);
2511         if(call != NULL)
2512         {
2513                 if(call->dir==LinphoneCallIncoming
2514                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2515                         return TRUE;
2516         }
2517         return FALSE;
2518 }
2519
2520 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2521         char *barmesg;
2522         char *tmp;
2523         LinphoneAddress *from_parsed;
2524         SalMediaDescription *md;
2525         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2526         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2527
2528         call->localdesc=create_local_media_description(lc,call);
2529         sal_call_set_local_media_description(call->op,call->localdesc);
2530         md=sal_call_get_final_media_description(call->op);
2531         if (md && sal_media_description_empty(md)){
2532                 sal_call_decline(call->op,SalReasonMedia,NULL);
2533                 linphone_call_unref(call);
2534                 return;
2535         }
2536
2537         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2538         linphone_address_clean(from_parsed);
2539         tmp=linphone_address_as_string(from_parsed);
2540         linphone_address_destroy(from_parsed);
2541         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2542             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2543         if (lc->vtable.show) lc->vtable.show(lc);
2544         if (lc->vtable.display_status)
2545             lc->vtable.display_status(lc,barmesg);
2546
2547         /* play the ring if this is the only call*/
2548         if (ms_list_size(lc->calls)==1){
2549                 lc->current_call=call;
2550                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2551                         ring_stop(lc->ringstream);
2552                         lc->ringstream=NULL;
2553                         lc->dmfs_playing_start_time=0;
2554                 }
2555                 if (lc->sound_conf.ring_sndcard!=NULL){
2556                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2557                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2558                                 ms_message("Starting local ring...");
2559                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2560                         }
2561                         else
2562                         {
2563                                 ms_message("the local ring is already started");
2564                         }
2565                 }
2566         }else{
2567                 /* else play a tone within the context of the current call */
2568                 call->ringing_beep=TRUE;
2569                 linphone_core_play_tone(lc);
2570         }
2571
2572         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2573
2574         if (call->state==LinphoneCallIncomingReceived){
2575                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2576
2577                 if (propose_early_media || ringback_tone!=NULL){
2578                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2579                         md=sal_call_get_final_media_description(call->op);
2580                         linphone_core_update_streams(lc,call,md);
2581                 }
2582                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2583                         linphone_core_accept_call(lc,call);
2584                 }
2585         }
2586         linphone_call_unref(call);
2587
2588         ms_free(barmesg);
2589         ms_free(tmp);
2590 }
2591
2592 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2593         const char *subject;
2594         call->camera_active=call->params.has_video;
2595         if (call->ice_session != NULL)
2596                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2597
2598         if (call->params.in_conference){
2599                 subject="Conference";
2600         }else{
2601                 subject="Media change";
2602         }
2603         if (lc->vtable.display_status)
2604                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2605         sal_call_set_local_media_description (call->op,call->localdesc);
2606         return sal_call_update(call->op,subject);
2607 }
2608
2609 /**
2610  * @ingroup call_control
2611  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2612  *
2613  * In this version this is limited to the following use cases:
2614  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2615  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2616  *
2617  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2618  * @param lc the core
2619  * @param call the call to be updated
2620  * @param params the new call parameters to use. (may be NULL)
2621  * @return 0 if successful, -1 otherwise.
2622 **/
2623 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2624         int err=0;
2625         if (params!=NULL){
2626                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2627 #ifdef VIDEO_ENABLED
2628                 bool_t has_video = call->params.has_video;
2629                 if ((call->ice_session != NULL) && (call->videostream != NULL) && !params->has_video) {
2630                         ice_session_remove_check_list(call->ice_session, call->videostream->ice_check_list);
2631                         call->videostream->ice_check_list = NULL;
2632                 }
2633                 call->params = *params;
2634                 update_local_media_description(lc, call);
2635                 if ((call->ice_session != NULL) && !has_video && call->params.has_video) {
2636                         /* Defer call update until the ICE candidates gathering process has finished. */
2637                         ms_message("Defer call update to gather ICE candidates");
2638                         linphone_call_init_video_stream(call);
2639                         video_stream_prepare_video(call->videostream);
2640                         if (linphone_core_gather_ice_candidates(lc,call)<0) {
2641                                 /* Ice candidates gathering failed, proceed with the call anyway. */
2642                                 linphone_call_delete_ice_session(call);
2643                         } else return err;
2644                 }
2645 #endif
2646                 err = linphone_core_start_update_call(lc, call);
2647         }else{
2648 #ifdef VIDEO_ENABLED
2649                 if (call->videostream!=NULL){
2650                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2651                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2652                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2653                         }else video_stream_update_video_params(call->videostream);
2654                 }
2655 #endif
2656         }
2657
2658         return err;
2659 }
2660
2661 /**
2662  * @ingroup call_control
2663  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2664  *
2665  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2666  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2667  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2668  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2669  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2670  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2671  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2672  *
2673  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2674 **/
2675 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2676         if (call->state==LinphoneCallUpdatedByRemote){
2677                 call->defer_update=TRUE;
2678                 return 0;
2679         }
2680         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2681         return -1;
2682 }
2683
2684 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2685         SalMediaDescription *md;
2686         if (call->ice_session != NULL) {
2687                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2688                         /* Defer the sending of the answer until there are no losing pairs left. */
2689                         return 0;
2690                 }
2691                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2692         }
2693         sal_call_set_local_media_description(call->op,call->localdesc);
2694         sal_call_accept(call->op);
2695         md=sal_call_get_final_media_description(call->op);
2696         if (md && !sal_media_description_empty(md))
2697                 linphone_core_update_streams (lc,call,md);
2698         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2699         return 0;
2700 }
2701
2702 /**
2703  * @ingroup call_control
2704  * Accept call modifications initiated by other end.
2705  *
2706  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2707  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2708  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2709  * requested by the other party, such as whether a video stream is requested.
2710  *
2711  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2712  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2713  * If params is not NULL, then the update will be accepted according to the parameters passed.
2714  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2715  * (see linphone_call_params_enable_video()).
2716  * @param lc the linphone core object.
2717  * @param call the LinphoneCall object
2718  * @param params a LinphoneCallParams object describing the call parameters to accept.
2719  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2720 **/
2721 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2722 #ifdef VIDEO_ENABLED
2723         bool_t old_has_video = call->params.has_video;
2724 #endif
2725         if (call->state!=LinphoneCallUpdatedByRemote){
2726                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2727                          linphone_call_state_to_string(call->state));
2728                 return -1;
2729         }
2730         if (params==NULL){
2731                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2732         }else
2733                 call->params=*params;
2734
2735         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2736                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2737                 call->params.has_video=FALSE;
2738         }
2739         if (call->current_params.in_conference) {
2740                 ms_warning("Video isn't supported in conference");
2741                 call->params.has_video = FALSE;
2742         }
2743         call->params.has_video &= linphone_core_media_description_contains_video_stream(sal_call_get_remote_media_description(call->op));
2744         call->camera_active=call->params.has_video;
2745         update_local_media_description(lc,call);
2746         if (call->ice_session != NULL) {
2747                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2748 #ifdef VIDEO_ENABLED
2749                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2750                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2751                                 linphone_call_init_video_stream(call);
2752                                 video_stream_prepare_video(call->videostream);
2753                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2754                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2755                                         linphone_call_delete_ice_session(call);
2756                                 } else return 0;
2757                         }
2758                 }
2759 #endif
2760         }
2761         linphone_core_start_accept_call_update(lc, call);
2762         return 0;
2763 }
2764
2765 /**
2766  * Accept an incoming call.
2767  *
2768  * @ingroup call_control
2769  * Basically the application is notified of incoming calls within the
2770  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2771  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2772  * The application can later accept the call using this method.
2773  * @param lc the LinphoneCore object
2774  * @param call the LinphoneCall object representing the call to be answered.
2775  *
2776 **/
2777 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
2778         return linphone_core_accept_call_with_params(lc,call,NULL);
2779 }
2780
2781 /**
2782  * Accept an incoming call, with parameters.
2783  *
2784  * @ingroup call_control
2785  * Basically the application is notified of incoming calls within the
2786  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2787  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2788  * The application can later accept the call using
2789  * this method.
2790  * @param lc the LinphoneCore object
2791  * @param call the LinphoneCall object representing the call to be answered.
2792  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
2793  *
2794 **/
2795 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
2796 {
2797         LinphoneProxyConfig *cfg=NULL;
2798         const char *contact=NULL;
2799         SalOp *replaced;
2800         SalMediaDescription *new_md;
2801         bool_t was_ringing=FALSE;
2802
2803         if (call==NULL){
2804                 //if just one call is present answer the only one ...
2805                 if(linphone_core_get_calls_nb (lc) != 1)
2806                         return -1;
2807                 else
2808                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
2809         }
2810
2811         if (call->state==LinphoneCallConnected){
2812                 /*call already accepted*/
2813                 return -1;
2814         }
2815
2816         /* check if this call is supposed to replace an already running one*/
2817         replaced=sal_call_get_replaces(call->op);
2818         if (replaced){
2819                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
2820                 if (rc){
2821                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
2822                                    call,rc);
2823                         linphone_core_terminate_call(lc,rc);
2824                 }
2825         }
2826
2827         if (lc->current_call!=call){
2828                 linphone_core_preempt_sound_resources(lc);
2829         }
2830
2831         /*stop ringing */
2832         if (lc->ringstream!=NULL) {
2833                 ms_message("stop ringing");
2834                 ring_stop(lc->ringstream);
2835                 ms_message("ring stopped");
2836                 lc->ringstream=NULL;
2837                 was_ringing=TRUE;
2838         }
2839         if (call->ringing_beep){
2840                 linphone_core_stop_dtmf(lc);
2841                 call->ringing_beep=FALSE;
2842         }
2843
2844         linphone_core_get_default_proxy(lc,&cfg);
2845         call->dest_proxy=cfg;
2846         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
2847
2848         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
2849                 ms_message("Overriding default proxy setting for this call:");
2850                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
2851         }
2852         /*try to be best-effort in giving real local or routable contact address*/
2853         contact=get_fixed_contact(lc,call,call->dest_proxy);
2854         if (contact)
2855                 sal_op_set_contact(call->op,contact);
2856
2857         if (params){
2858                 call->params=*params;
2859                 call->params.has_video &= linphone_core_media_description_contains_video_stream(sal_call_get_remote_media_description(call->op));
2860                 call->camera_active=call->params.has_video;
2861                 update_local_media_description(lc,call);
2862                 sal_call_set_local_media_description(call->op,call->localdesc);
2863         }
2864
2865         if (call->audiostream==NULL)
2866                 linphone_call_init_media_streams(call);
2867         if (!was_ringing && call->audiostream->ticker==NULL){
2868                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2869         }
2870
2871         sal_call_accept(call->op);
2872         if (lc->vtable.display_status!=NULL)
2873                 lc->vtable.display_status(lc,_("Connected."));
2874         lc->current_call=call;
2875         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
2876         new_md=sal_call_get_final_media_description(call->op);
2877         linphone_core_update_streams(lc, call, new_md);
2878         if (new_md){
2879                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2880         }else call->media_pending=TRUE;
2881
2882         ms_message("call answered.");
2883         return 0;
2884 }
2885
2886 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
2887         sal_call_terminate(call->op);
2888
2889         /*stop ringing*/
2890         if (lc->ringstream!=NULL) {
2891                 ring_stop(lc->ringstream);
2892                 lc->ringstream=NULL;
2893         }
2894         linphone_call_stop_media_streams(call);
2895         if (lc->vtable.display_status!=NULL)
2896                 lc->vtable.display_status(lc,_("Call aborted") );
2897         linphone_call_set_state(call,LinphoneCallError,error);
2898         return 0;
2899 }
2900
2901 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
2902         if (call->state==LinphoneCallIncomingReceived){
2903                 if (call->reason!=LinphoneReasonNotAnswered)
2904                         call->reason=LinphoneReasonDeclined;
2905         }
2906         /*stop ringing*/
2907         if (lc->ringstream!=NULL) {
2908                 ring_stop(lc->ringstream);
2909                 lc->ringstream=NULL;
2910         }
2911
2912         linphone_call_stop_media_streams(call);
2913         if (lc->vtable.display_status!=NULL)
2914                 lc->vtable.display_status(lc,_("Call ended") );
2915 }
2916
2917 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
2918         if (call->state==LinphoneCallIncomingReceived){
2919                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
2920                 call->reason=LinphoneReasonDeclined;
2921                 terminate_call(lc,call);
2922                 linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2923         }else{
2924                 ms_error("Bad state for call redirection.");
2925                 return -1;
2926     }
2927         return 0;
2928 }
2929
2930
2931 /**
2932  * Terminates a call.
2933  *
2934  * @ingroup call_control
2935  * @param lc the LinphoneCore
2936  * @param the_call the LinphoneCall object representing the call to be terminated.
2937 **/
2938 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
2939 {
2940         LinphoneCall *call;
2941         if (the_call == NULL){
2942                 call = linphone_core_get_current_call(lc);
2943                 if (ms_list_size(lc->calls)==1){
2944                         call=(LinphoneCall*)lc->calls->data;
2945                 }else{
2946                         ms_warning("No unique call to terminate !");
2947                         return -1;
2948                 }
2949         }
2950         else
2951         {
2952                 call = the_call;
2953         }
2954         sal_call_terminate(call->op);
2955         terminate_call(lc,call);
2956
2957         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2958         return 0;
2959 }
2960
2961 /**
2962  * Terminates all the calls.
2963  *
2964  * @ingroup call_control
2965  * @param lc The LinphoneCore
2966 **/
2967 int linphone_core_terminate_all_calls(LinphoneCore *lc){
2968         MSList *calls=lc->calls;
2969         while(calls) {
2970                 LinphoneCall *c=(LinphoneCall*)calls->data;
2971                 calls=calls->next;
2972                 linphone_core_terminate_call(lc,c);
2973         }
2974         return 0;
2975 }
2976
2977 /**
2978  * Returns the current list of calls.
2979  *
2980  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
2981  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
2982  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
2983  *
2984  * @ingroup call_control
2985 **/
2986 const MSList *linphone_core_get_calls(LinphoneCore *lc)
2987 {
2988         return lc->calls;
2989 }
2990
2991 /**
2992  * Returns TRUE if there is a call running.
2993  *
2994  * @ingroup call_control
2995 **/
2996 bool_t linphone_core_in_call(const LinphoneCore *lc){
2997         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
2998 }
2999
3000 /**
3001  * Returns The _LinphoneCall struct of the current call if one is in call
3002  *
3003  * @ingroup call_control
3004 **/
3005 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
3006 {
3007         return lc->current_call;
3008 }
3009
3010 /**
3011  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
3012  * this file will be played to the remote user.
3013  *
3014  * @ingroup call_control
3015 **/
3016 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
3017 {
3018         const char *subject=NULL;
3019
3020         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
3021                 ms_warning("Cannot pause this call, it is not active.");
3022                 return -1;
3023         }
3024         update_local_media_description(lc,call);
3025         if (call->ice_session != NULL)
3026                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3027         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
3028                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3029                 subject="Call on hold";
3030         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
3031                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3032                 subject="Call on hold for me too";
3033         }else{
3034                 ms_error("No reason to pause this call, it is already paused or inactive.");
3035                 return -1;
3036         }
3037         sal_call_set_local_media_description(call->op,call->localdesc);
3038         if (sal_call_update(call->op,subject) != 0){
3039                 if (lc->vtable.display_warning)
3040                         lc->vtable.display_warning(lc,_("Could not pause the call"));
3041         }
3042         lc->current_call=NULL;
3043         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
3044         if (lc->vtable.display_status)
3045                 lc->vtable.display_status(lc,_("Pausing the current call..."));
3046         if (call->audiostream || call->videostream)
3047                 linphone_call_stop_media_streams (call);
3048         return 0;
3049 }
3050
3051 /**
3052  * Pause all currently running calls.
3053 **/
3054 int linphone_core_pause_all_calls(LinphoneCore *lc){
3055         const MSList *elem;
3056         for(elem=lc->calls;elem!=NULL;elem=elem->next){
3057                 LinphoneCall *call=(LinphoneCall *)elem->data;
3058                 LinphoneCallState cs=linphone_call_get_state(call);
3059                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3060                         linphone_core_pause_call(lc,call);
3061                 }
3062         }
3063         return 0;
3064 }
3065
3066 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3067         LinphoneCall *current_call;
3068         if (linphone_core_is_in_conference(lc)){
3069                 linphone_core_leave_conference(lc);
3070                 return;
3071         }
3072         current_call=linphone_core_get_current_call(lc);
3073         if(current_call != NULL){
3074                 ms_message("Pausing automatically the current call.");
3075                 linphone_core_pause_call(lc,current_call);
3076         }
3077 }
3078
3079 /**
3080  * Resumes the call.
3081  *
3082  * @ingroup call_control
3083 **/
3084 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3085 {
3086         char temp[255]={0};
3087         LinphoneCall *call = the_call;
3088         const char *subject="Call resuming";
3089
3090         if(call->state!=LinphoneCallPaused ){
3091                 ms_warning("we cannot resume a call that has not been established and paused before");
3092                 return -1;
3093         }
3094         if (call->params.in_conference==FALSE){
3095                 linphone_core_preempt_sound_resources(lc);
3096                 ms_message("Resuming call %p",call);
3097         }
3098
3099         /* Stop playing music immediately. If remote side is a conference it
3100          prevents the participants to hear it while the 200OK comes back.*/
3101         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3102
3103         update_local_media_description(lc,the_call);
3104         if (call->ice_session != NULL)
3105                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3106         sal_call_set_local_media_description(call->op,call->localdesc);
3107         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3108         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3109         if(sal_call_update(call->op,subject) != 0){
3110                 return -1;
3111         }
3112         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3113         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3114         if (lc->vtable.display_status)
3115                 lc->vtable.display_status(lc,temp);
3116         return 0;
3117 }
3118
3119 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3120         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3121         return !linphone_address_weak_equal (addr,raddr);
3122 }
3123
3124 /**
3125  * Get the call with the remote_address specified
3126  * @param lc
3127  * @param remote_address
3128  * @return the LinphoneCall of the call if found
3129  */
3130 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3131         LinphoneAddress *raddr=linphone_address_new(remote_address);
3132         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3133         if (elem) return (LinphoneCall*) elem->data;
3134         return NULL;
3135 }
3136
3137 int linphone_core_send_publish(LinphoneCore *lc,
3138                                LinphoneOnlineStatus presence_mode)
3139 {
3140         const MSList *elem;
3141         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3142                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3143                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3144         }
3145         return 0;
3146 }
3147
3148 /**
3149  * Set the incoming call timeout in seconds.
3150  *
3151  * @ingroup call_control
3152  * If an incoming call isn't answered for this timeout period, it is
3153  * automatically declined.
3154 **/
3155 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3156         lc->sip_conf.inc_timeout=seconds;
3157 }
3158
3159 /**
3160  * Returns the incoming call timeout
3161  *
3162  * @ingroup call_control
3163  * See linphone_core_set_inc_timeout() for details.
3164 **/
3165 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3166         return lc->sip_conf.inc_timeout;
3167 }
3168
3169 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3170                                                                                                         const char *contact,
3171                                                                                                         LinphoneOnlineStatus presence_mode)
3172 {
3173         if (minutes_away>0) lc->minutes_away=minutes_away;
3174
3175         if (lc->alt_contact!=NULL) {
3176                 ms_free(lc->alt_contact);
3177                 lc->alt_contact=NULL;
3178         }
3179         if (contact) lc->alt_contact=ms_strdup(contact);
3180         if (lc->presence_mode!=presence_mode){
3181                 linphone_core_notify_all_friends(lc,presence_mode);
3182                 /*
3183                    Improve the use of all LINPHONE_STATUS available.
3184                    !TODO Do not mix "presence status" with "answer status code"..
3185                    Use correct parameter to follow sip_if_match/sip_etag.
3186                  */
3187                 linphone_core_send_publish(lc,presence_mode);
3188         }
3189         lc->presence_mode=presence_mode;
3190 }
3191
3192 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3193         return lc->presence_mode;
3194 }
3195
3196 /**
3197  * Get playback sound level in 0-100 scale.
3198  *
3199  * @ingroup media_parameters
3200 **/
3201 int linphone_core_get_play_level(LinphoneCore *lc)
3202 {
3203         return lc->sound_conf.play_lev;
3204 }
3205
3206 /**
3207  * Get ring sound level in 0-100 scale
3208  *
3209  * @ingroup media_parameters
3210 **/
3211 int linphone_core_get_ring_level(LinphoneCore *lc)
3212 {
3213         return lc->sound_conf.ring_lev;
3214 }
3215
3216 /**
3217  * Get sound capture level in 0-100 scale
3218  *
3219  * @ingroup media_parameters
3220 **/
3221 int linphone_core_get_rec_level(LinphoneCore *lc){
3222         return lc->sound_conf.rec_lev;
3223 }
3224
3225 /**
3226  * Set sound ring level in 0-100 scale
3227  *
3228  * @ingroup media_parameters
3229 **/
3230 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3231         MSSndCard *sndcard;
3232         lc->sound_conf.ring_lev=level;
3233         sndcard=lc->sound_conf.ring_sndcard;
3234         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3235 }
3236
3237 /**
3238  * Allow to control play level before entering sound card:  gain in db
3239  *
3240  * @ingroup media_parameters
3241 **/
3242 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3243         float gain=gaindb;
3244         LinphoneCall *call=linphone_core_get_current_call (lc);
3245         AudioStream *st;
3246
3247         lc->sound_conf.soft_play_lev=gaindb;
3248
3249         if (call==NULL || (st=call->audiostream)==NULL){
3250                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3251                 return;
3252         }
3253         if (st->volrecv){
3254                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3255         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3256 }
3257
3258 /**
3259  * Get playback gain in db before entering  sound card.
3260  *
3261  * @ingroup media_parameters
3262 **/
3263 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3264         return lc->sound_conf.soft_play_lev;
3265 }
3266
3267 /**
3268  * Set sound playback level in 0-100 scale
3269  *
3270  * @ingroup media_parameters
3271 **/
3272 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3273         MSSndCard *sndcard;
3274         lc->sound_conf.play_lev=level;
3275         sndcard=lc->sound_conf.play_sndcard;
3276         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3277 }
3278
3279 /**
3280  * Set sound capture level in 0-100 scale
3281  *
3282  * @ingroup media_parameters
3283 **/
3284 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3285 {
3286         MSSndCard *sndcard;
3287         lc->sound_conf.rec_lev=level;
3288         sndcard=lc->sound_conf.capt_sndcard;
3289         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3290 }
3291
3292 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3293         MSSndCard *sndcard=NULL;
3294         if (devid!=NULL){
3295                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3296                 if (sndcard!=NULL &&
3297                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3298                         ms_warning("%s card does not have the %s capability, ignoring.",
3299                                 devid,
3300                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3301                         sndcard=NULL;
3302                 }
3303         }
3304         if (sndcard==NULL) {
3305                 /* get a card that has read+write capabilities */
3306                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3307                 /* otherwise refine to the first card having the right capability*/
3308                 if (sndcard==NULL){
3309                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3310                         for(;elem!=NULL;elem=elem->next){
3311                                 sndcard=(MSSndCard*)elem->data;
3312                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3313                         }
3314                 }
3315                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3316                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3317                         if (elem) sndcard=(MSSndCard*)elem->data;
3318         }
3319         }
3320         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3321         return sndcard;
3322 }
3323
3324 /**
3325  * Returns true if the specified sound device can capture sound.
3326  *
3327  * @ingroup media_parameters
3328  * @param lc The LinphoneCore object
3329  * @param devid the device name as returned by linphone_core_get_sound_devices()
3330 **/
3331 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3332         MSSndCard *sndcard;
3333         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3334         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3335         return FALSE;
3336 }
3337
3338 /**
3339  * Returns true if the specified sound device can play sound.
3340  *
3341  * @ingroup media_parameters
3342  * @param lc The LinphoneCore object
3343  * @param devid the device name as returned by linphone_core_get_sound_devices()
3344 **/
3345 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3346         MSSndCard *sndcard;
3347         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3348         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3349         return FALSE;
3350 }
3351
3352 /**
3353  * Sets the sound device used for ringing.
3354  *
3355  * @ingroup media_parameters
3356  * @param lc The LinphoneCore object
3357  * @param devid the device name as returned by linphone_core_get_sound_devices()
3358 **/
3359 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3360         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3361         lc->sound_conf.ring_sndcard=card;
3362         if (card && linphone_core_ready(lc))
3363                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3364         return 0;
3365 }
3366
3367 /**
3368  * Sets the sound device used for playback.
3369  *
3370  * @ingroup media_parameters
3371  * @param lc The LinphoneCore object
3372  * @param devid the device name as returned by linphone_core_get_sound_devices()
3373 **/
3374 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3375         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3376         lc->sound_conf.play_sndcard=card;
3377         if (card &&  linphone_core_ready(lc))
3378                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3379         return 0;
3380 }
3381
3382 /**
3383  * Sets the sound device used for capture.
3384  *
3385  * @ingroup media_parameters
3386  * @param lc The LinphoneCore object
3387  * @param devid the device name as returned by linphone_core_get_sound_devices()
3388 **/
3389 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3390         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3391         lc->sound_conf.capt_sndcard=card;
3392         if (card &&  linphone_core_ready(lc))
3393                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3394         return 0;
3395 }
3396
3397 /**
3398  * Returns the name of the currently assigned sound device for ringing.
3399  *
3400  * @ingroup media_parameters
3401  * @param lc The LinphoneCore object
3402 **/
3403 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3404 {
3405         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3406         return NULL;
3407 }
3408
3409 /**
3410  * Returns the name of the currently assigned sound device for playback.
3411  *
3412  * @ingroup media_parameters
3413  * @param lc The LinphoneCore object
3414 **/
3415 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3416 {
3417         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3418 }
3419
3420 /**
3421  * Returns the name of the currently assigned sound device for capture.
3422  *
3423  * @ingroup media_parameters
3424  * @param lc The LinphoneCore object
3425 **/
3426 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3427 {
3428         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3429 }
3430
3431 /**
3432  * Returns an unmodifiable array of available sound devices.
3433  *
3434  * The array is NULL terminated.
3435  *
3436  * @ingroup media_parameters
3437  * @param lc The LinphoneCore object
3438 **/
3439 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3440         return lc->sound_conf.cards;
3441 }
3442
3443 /**
3444  * Returns an unmodifiable array of available video capture devices.
3445  *
3446  * @ingroup media_parameters
3447  * The array is NULL terminated.
3448 **/
3449 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3450         return lc->video_conf.cams;
3451 }
3452
3453 /**
3454  * Update detection of sound devices.
3455  *
3456  * Use this function when the application is notified of USB plug events, so that
3457  * list of available hardwares for sound playback and capture is updated.
3458  **/
3459 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3460         const char *ringer,*playback,*capture;
3461         ringer=linphone_core_get_ringer_device(lc);
3462         playback=linphone_core_get_playback_device(lc);
3463         capture=linphone_core_get_capture_device(lc);
3464         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3465         build_sound_devices_table(lc);
3466         linphone_core_set_ringer_device(lc,ringer);
3467         linphone_core_set_playback_device(lc,playback);
3468         linphone_core_set_capture_device(lc,capture);
3469 }
3470
3471 /**
3472  * Update detection of camera devices.
3473  *
3474  * Use this function when the application is notified of USB plug events, so that
3475  * list of available hardwares for video capture is updated.
3476  **/
3477 void linphone_core_reload_video_devices(LinphoneCore *lc){
3478         const char *devid;
3479         devid=linphone_core_get_video_device(lc);
3480         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3481         build_video_devices_table(lc);
3482         linphone_core_set_video_device(lc,devid);
3483 }
3484
3485 char linphone_core_get_sound_source(LinphoneCore *lc)
3486 {
3487         return lc->sound_conf.source;
3488 }
3489
3490 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3491 {
3492         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3493         lc->sound_conf.source=source;
3494         if (!sndcard) return;
3495         switch(source){
3496                 case 'm':
3497                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3498                         break;
3499                 case 'l':
3500                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3501                         break;
3502         }
3503
3504 }
3505
3506
3507 /**
3508  * Sets the path to a wav file used for ringing.
3509  *
3510  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3511  * @param lc The LinphoneCore object
3512  *
3513  * @ingroup media_parameters
3514 **/
3515 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3516         if (lc->sound_conf.local_ring!=0){
3517                 ms_free(lc->sound_conf.local_ring);
3518                 lc->sound_conf.local_ring=NULL;
3519         }
3520         if (path)
3521                 lc->sound_conf.local_ring=ms_strdup(path);
3522         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3523                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3524 }
3525
3526 /**
3527  * Returns the path to the wav file used for ringing.
3528  *
3529  * @param lc The LinphoneCore object
3530  * @ingroup media_parameters
3531 **/
3532 const char *linphone_core_get_ring(const LinphoneCore *lc){
3533         return lc->sound_conf.local_ring;
3534 }
3535
3536 /**
3537  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3538  *
3539  * @param path
3540  * @param lc The LinphoneCore object
3541  *
3542  * @ingroup media_parameters
3543 **/
3544 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3545         sal_set_root_ca(lc->sal, path);
3546 }
3547
3548 /**
3549  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3550 **/
3551 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3552         sal_verify_server_certificates(lc->sal,yesno);
3553 }
3554
3555 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3556         LinphoneCore *lc=(LinphoneCore*)ud;
3557         lc->preview_finished=1;
3558 }
3559
3560 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3561 {
3562         if (lc->ringstream!=0){
3563                 ms_warning("Cannot start ring now,there's already a ring being played");
3564                 return -1;
3565         }
3566         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3567         lc->preview_finished=0;
3568         if (lc->sound_conf.ring_sndcard!=NULL){
3569                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3570                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3571         }
3572         return 0;
3573 }
3574
3575 /**
3576  * Sets the path to a wav file used for ringing back.
3577  *
3578  * Ringback means the ring that is heard when it's ringing at the remote party.
3579  * The file must be a wav 16bit linear.
3580  *
3581  * @ingroup media_parameters
3582 **/
3583 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3584         if (lc->sound_conf.remote_ring!=0){
3585                 ms_free(lc->sound_conf.remote_ring);
3586         }
3587         lc->sound_conf.remote_ring=ms_strdup(path);
3588 }
3589
3590 /**
3591  * Returns the path to the wav file used for ringing back.
3592  *
3593  * @ingroup media_parameters
3594 **/
3595 const char * linphone_core_get_ringback(const LinphoneCore *lc){
3596         return lc->sound_conf.remote_ring;
3597 }
3598
3599 /**
3600  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
3601  *
3602  * @ingroup media_parameters
3603 **/
3604 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
3605         lc->sound_conf.ec=val;
3606         if ( linphone_core_ready(lc))
3607                 lp_config_set_int(lc->config,"sound","echocancellation",val);
3608 }
3609
3610
3611 /**
3612  * Returns TRUE if echo cancellation is enabled.
3613  *
3614  * @ingroup media_parameters
3615 **/
3616 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
3617         return lc->sound_conf.ec;
3618 }
3619
3620 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
3621         lc->sound_conf.ea=val;
3622 }
3623
3624 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
3625         return lc->sound_conf.ea;
3626 }
3627
3628 /**
3629  * Mutes or unmutes the local microphone.
3630  *
3631  * @ingroup media_parameters
3632 **/
3633 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
3634         LinphoneCall *call=linphone_core_get_current_call(lc);
3635         AudioStream *st=NULL;
3636         if (linphone_core_is_in_conference(lc)){
3637                 lc->conf_ctx.local_muted=val;
3638                 st=lc->conf_ctx.local_participant;
3639         }else if (call==NULL){
3640                 ms_warning("linphone_core_mute_mic(): No current call !");
3641                 return;
3642         }else{
3643                 st=call->audiostream;
3644                 call->audio_muted=val;
3645         }
3646         if (st!=NULL){
3647                 audio_stream_set_mic_gain(st,
3648                         (val==TRUE) ? 0 : lp_config_get_float(lc->config,"sound","mic_gain",1));
3649                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
3650                         audio_stream_mute_rtp(st,val);
3651                 }
3652
3653         }
3654 }
3655 /**
3656  * Returns whether microphone is muted.
3657 **/
3658 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
3659         LinphoneCall *call=linphone_core_get_current_call(lc);
3660         if (linphone_core_is_in_conference(lc)){
3661                 return lc->conf_ctx.local_muted;
3662         }else if (call==NULL){
3663                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3664                 return FALSE;
3665         }
3666         return call->audio_muted;
3667 }
3668
3669 // returns rtp transmission status for an active stream
3670 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
3671 // was set on then rtp transmission is also muted
3672 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
3673         LinphoneCall *call=linphone_core_get_current_call(lc);
3674         if (call==NULL){
3675                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3676                 return FALSE;
3677         }
3678         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
3679                 return call->audio_muted;
3680         }
3681         return FALSE;
3682 }
3683
3684 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
3685         lc->sound_conf.agc=val;
3686 }
3687
3688 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
3689         return lc->sound_conf.agc;
3690 }
3691
3692 /**
3693  * Send the specified dtmf.
3694  *
3695  * @ingroup media_parameters
3696  * This function only works during calls. The dtmf is automatically played to the user.
3697  * @param lc The LinphoneCore object
3698  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
3699  *
3700 **/
3701 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
3702 {
3703         LinphoneCall *call=linphone_core_get_current_call(lc);
3704         if (call==NULL){
3705                 ms_warning("linphone_core_send_dtmf(): no active call");
3706                 return;
3707         }
3708         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
3709         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
3710         {
3711                 /* In Band DTMF */
3712                 if (call->audiostream!=NULL){
3713                         audio_stream_send_dtmf(call->audiostream,dtmf);
3714                 }
3715                 else
3716                 {
3717                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
3718                 }
3719         }
3720         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
3721                 /* Out of Band DTMF (use INFO method) */
3722                 sal_call_send_dtmf(call->op,dtmf);
3723         }
3724 }
3725
3726 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
3727         if (lc->net_conf.stun_server!=NULL)
3728                 ms_free(lc->net_conf.stun_server);
3729         if (server)
3730                 lc->net_conf.stun_server=ms_strdup(server);
3731         else lc->net_conf.stun_server=NULL;
3732         if (linphone_core_ready(lc))
3733                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
3734 }
3735
3736 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
3737         return lc->net_conf.stun_server;
3738 }
3739
3740 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
3741         return lc->net_conf.relay;
3742 }
3743
3744 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
3745         if (lc->net_conf.relay!=NULL){
3746                 ms_free(lc->net_conf.relay);
3747                 lc->net_conf.relay=NULL;
3748         }
3749         if (addr){
3750                 lc->net_conf.relay=ms_strdup(addr);
3751         }
3752         return 0;
3753 }
3754
3755 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
3756 {
3757         if (lc->net_conf.nat_address!=NULL){
3758                 ms_free(lc->net_conf.nat_address);
3759         }
3760         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
3761         else lc->net_conf.nat_address=NULL;
3762         if (lc->sip_conf.contact) update_primary_contact(lc);
3763 }
3764
3765 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
3766         return lc->net_conf.nat_address;
3767 }
3768
3769 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
3770 {
3771         struct sockaddr_storage ss;
3772         socklen_t ss_len;
3773         int error;
3774         char ipstring [INET6_ADDRSTRLEN];
3775
3776         if (lc->net_conf.nat_address==NULL) return NULL;
3777
3778         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
3779                 return lc->net_conf.nat_address;
3780         }
3781
3782         error = getnameinfo((struct sockaddr *)&ss, ss_len,
3783                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
3784         if (error) {
3785                 return lc->net_conf.nat_address;
3786         }
3787
3788         if (lc->net_conf.nat_address_ip!=NULL){
3789                 ms_free(lc->net_conf.nat_address_ip);
3790         }
3791         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
3792         return lc->net_conf.nat_address_ip;
3793 }
3794
3795 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
3796         lc->net_conf.firewall_policy=pol;
3797         if (lc->sip_conf.contact) update_primary_contact(lc);
3798         if (linphone_core_ready(lc))
3799                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
3800 }
3801
3802 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
3803         return lc->net_conf.firewall_policy;
3804 }
3805
3806 /**
3807  * Get the list of call logs (past calls).
3808  *
3809  * @ingroup call_logs
3810 **/
3811 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
3812         return lc->call_logs;
3813 }
3814
3815 /**
3816  * Erase the call log.
3817  *
3818  * @ingroup call_logs
3819 **/
3820 void linphone_core_clear_call_logs(LinphoneCore *lc){
3821         lc->missed_calls=0;
3822         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
3823         lc->call_logs=ms_list_free(lc->call_logs);
3824         call_logs_write_to_config_file(lc);
3825 }
3826
3827 /**
3828  * Returns number of missed calls.
3829  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
3830 **/
3831 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
3832         return lc->missed_calls;
3833 }
3834
3835 /**
3836  * Resets the counter of missed calls.
3837 **/
3838 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
3839         lc->missed_calls=0;
3840 }
3841
3842 /**
3843  * Remove a specific call log from call history list.
3844  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
3845  * @param lc the linphone core object
3846  * @param a LinphoneCallLog object.
3847 **/
3848 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
3849         lc->call_logs = ms_list_remove(lc->call_logs, cl);
3850         call_logs_write_to_config_file(lc);
3851         linphone_call_log_destroy(cl);
3852 }
3853
3854 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
3855 #ifdef VIDEO_ENABLED
3856         if (val){
3857                 if (lc->previewstream==NULL){
3858                         lc->previewstream=video_preview_new();
3859                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
3860                         if (lc->video_conf.displaytype)
3861                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
3862                         if (lc->preview_window_id!=0)
3863                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
3864                         video_preview_start(lc->previewstream,lc->video_conf.device);
3865                 }
3866         }else{
3867                 if (lc->previewstream!=NULL){
3868                         video_preview_stop(lc->previewstream);
3869                         lc->previewstream=NULL;
3870                 }
3871         }
3872 #endif
3873 }
3874
3875 /**
3876  * Enables video globally.
3877  *
3878  * @ingroup media_parameters
3879  * This function does not have any effect during calls. It just indicates LinphoneCore to
3880  * initiate future calls with video or not. The two boolean parameters indicate in which
3881  * direction video is enabled. Setting both to false disables video entirely.
3882  *
3883  * @param lc The LinphoneCore object
3884  * @param vcap_enabled indicates whether video capture is enabled
3885  * @param display_enabled indicates whether video display should be shown
3886  *
3887 **/
3888 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
3889 #ifndef VIDEO_ENABLED
3890         if (vcap_enabled || display_enabled)
3891                 ms_warning("This version of linphone was built without video support.");
3892 #endif
3893         lc->video_conf.capture=vcap_enabled;
3894         lc->video_conf.display=display_enabled;
3895         if (linphone_core_ready(lc)){
3896                 lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
3897                 lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
3898         }
3899         /* need to re-apply network bandwidth settings*/
3900         linphone_core_set_download_bandwidth(lc,
3901                 linphone_core_get_download_bandwidth(lc));
3902         linphone_core_set_upload_bandwidth(lc,
3903                 linphone_core_get_upload_bandwidth(lc));
3904 }
3905
3906 bool_t linphone_core_video_supported(LinphoneCore *lc){
3907 #ifdef VIDEO_ENABLED
3908         return TRUE;
3909 #else
3910         return FALSE;
3911 #endif
3912 }
3913
3914 /**
3915  * Returns TRUE if video is enabled, FALSE otherwise.
3916  * @ingroup media_parameters
3917 **/
3918 bool_t linphone_core_video_enabled(LinphoneCore *lc){
3919         return (lc->video_conf.display || lc->video_conf.capture);
3920 }
3921
3922 /**
3923  * Sets the default policy for video.
3924  * This policy defines whether:
3925  * - video shall be initiated by default for outgoing calls
3926  * - video shall be accepter by default for incoming calls
3927  * @ingroup media_parameters
3928 **/
3929 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
3930         lc->video_policy=*policy;
3931         if (linphone_core_ready(lc)){
3932                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
3933                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
3934         }
3935 }
3936
3937 /**
3938  * Get the default policy for video.
3939  * See linphone_core_set_video_policy() for more details.
3940  * @ingroup media_parameters
3941 **/
3942 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
3943         return &lc->video_policy;
3944 }
3945
3946 /**
3947  * Controls video preview enablement.
3948  *
3949  * @ingroup media_parameters
3950  * Video preview refers to the action of displaying the local webcam image
3951  * to the user while not in call.
3952 **/
3953 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
3954         lc->video_conf.show_local=val;
3955         if (linphone_core_ready(lc))
3956                 lp_config_set_int(lc->config,"video","show_local",val);
3957 }
3958
3959 /**
3960  * Returns TRUE if video previewing is enabled.
3961  * @ingroup media_parameters
3962 **/
3963 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
3964         return lc->video_conf.show_local;
3965 }
3966
3967 /**
3968  * Enables or disable self view during calls.
3969  *
3970  * @ingroup media_parameters
3971  * Self-view refers to having local webcam image inserted in corner
3972  * of the video window during calls.
3973  * This function works at any time, including during calls.
3974 **/
3975 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
3976 #ifdef VIDEO_ENABLED
3977         LinphoneCall *call=linphone_core_get_current_call (lc);
3978         lc->video_conf.selfview=val;
3979         if (call && call->videostream){
3980                 video_stream_enable_self_view(call->videostream,val);
3981         }
3982         if (linphone_core_ready(lc)){
3983                 lp_config_set_int(lc->config,"video","self_view",val);
3984         }
3985 #endif
3986 }
3987
3988 /**
3989  * Returns TRUE if self-view is enabled, FALSE otherwise.
3990  *
3991  * @ingroup media_parameters
3992  *
3993  * Refer to linphone_core_enable_self_view() for details.
3994 **/
3995 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
3996         return lc->video_conf.selfview;
3997 }
3998
3999 /**
4000  * Sets the active video device.
4001  *
4002  * @ingroup media_parameters
4003  * @param lc The LinphoneCore object
4004  * @param id the name of the video device as returned by linphone_core_get_video_devices()
4005 **/
4006 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
4007         MSWebCam *olddev=lc->video_conf.device;
4008         const char *vd;
4009         if (id!=NULL){
4010                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
4011                 if (lc->video_conf.device==NULL){
4012                         ms_warning("Could not found video device %s",id);
4013                 }
4014         }
4015         if (lc->video_conf.device==NULL)
4016                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
4017         if (olddev!=NULL && olddev!=lc->video_conf.device){
4018                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
4019         }
4020         if ( linphone_core_ready(lc) && lc->video_conf.device){
4021                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
4022                 if (vd && strstr(vd,"Static picture")!=NULL){
4023                         vd=NULL;
4024                 }
4025                 lp_config_set_string(lc->config,"video","device",vd);
4026         }
4027         return 0;
4028 }
4029
4030 /**
4031  * Returns the name of the currently active video device.
4032  *
4033  * @param lc The LinphoneCore object
4034  * @ingroup media_parameters
4035 **/
4036 const char *linphone_core_get_video_device(const LinphoneCore *lc){
4037         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
4038         return NULL;
4039 }
4040
4041 #ifdef VIDEO_ENABLED
4042 static VideoStream * get_active_video_stream(LinphoneCore *lc){
4043         VideoStream *vs = NULL;
4044         LinphoneCall *call=linphone_core_get_current_call (lc);
4045         /* Select the video stream from the call in the first place */
4046         if (call && call->videostream) {
4047                 vs = call->videostream;
4048         }
4049         /* If not in call, select the video stream from the preview */
4050         if (vs == NULL && lc->previewstream) {
4051                 vs = lc->previewstream;
4052         }
4053         return vs;
4054 }
4055 #endif
4056
4057 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
4058 #ifdef VIDEO_ENABLED
4059         VideoStream *vs=get_active_video_stream(lc);
4060         /* If we have a video stream (either preview, either from call), we
4061                  have a source and it is using the static picture filter, then
4062                  force the filter to use that picture. */
4063         if (vs && vs->source) {
4064                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4065                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4066                                                                                                                 (void *)path);
4067                 }
4068         }
4069         /* Tell the static image filter to use that image from now on so
4070                  that the image will be used next time it has to be read */
4071         ms_static_image_set_default_image(path);
4072 #else
4073         ms_warning("Video support not compiled.");
4074 #endif
4075         return 0;
4076 }
4077
4078 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4079 #ifdef VIDEO_ENABLED
4080         VideoStream *vs = NULL;
4081
4082         vs=get_active_video_stream(lc);
4083
4084         /* If we have a video stream (either preview, either from call), we
4085                  have a source and it is using the static picture filter, then
4086                  force the filter to use that picture. */
4087         if (vs && vs->source) {
4088                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4089                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4090                 }
4091         }
4092 #else
4093         ms_warning("Video support not compiled.");
4094 #endif
4095         return 0;
4096 }
4097
4098 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4099 #ifdef VIDEO_ENABLED
4100         VideoStream *vs = NULL;
4101         vs=get_active_video_stream(lc);
4102         /* If we have a video stream (either preview, either from call), we
4103                  have a source and it is using the static picture filter, then
4104                  force the filter to use that picture. */
4105         if (vs && vs->source) {
4106                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4107
4108                         float fps;
4109
4110                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4111                         return fps;
4112                 }
4113         }
4114 #else
4115         ms_warning("Video support not compiled.");
4116 #endif
4117         return 0;
4118 }
4119
4120 /**
4121  * Returns the native window handle of the video window, casted as an unsigned long.
4122  *
4123  * @ingroup media_parameters
4124 **/
4125 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4126 #ifdef VIDEO_ENABLED
4127         LinphoneCall *call=linphone_core_get_current_call (lc);
4128         if (call && call->videostream)
4129                 return video_stream_get_native_window_id(call->videostream);
4130         if (lc->previewstream)
4131                 return video_stream_get_native_window_id(lc->previewstream);
4132 #endif
4133         return lc->video_window_id;
4134 }
4135
4136 /**@ingroup media_parameters
4137  * Set the native video window id where the video is to be displayed.
4138  * If not set the core will create its own window.
4139 **/
4140 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4141 #ifdef VIDEO_ENABLED
4142         LinphoneCall *call=linphone_core_get_current_call(lc);
4143         lc->video_window_id=id;
4144         if (call!=NULL && call->videostream){
4145                 video_stream_set_native_window_id(call->videostream,id);
4146         }
4147 #endif
4148 }
4149
4150 /**
4151  * Returns the native window handle of the video preview window, casted as an unsigned long.
4152  *
4153  * @ingroup media_parameters
4154 **/
4155 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4156 #ifdef VIDEO_ENABLED
4157         LinphoneCall *call=linphone_core_get_current_call (lc);
4158         if (call && call->videostream)
4159                 return video_stream_get_native_preview_window_id(call->videostream);
4160         if (lc->previewstream)
4161                 return video_preview_get_native_window_id(lc->previewstream);
4162 #endif
4163         return lc->preview_window_id;
4164 }
4165
4166 /**
4167  * @ingroup media_parameters
4168  * Set the native window id where the preview video (local camera) is to be displayed.
4169  * This has to be used in conjonction with linphone_core_use_preview_window().
4170  * If not set the core will create its own window.
4171 **/
4172 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4173         lc->preview_window_id=id;
4174 #ifdef VIDEO_ENABLED
4175         LinphoneCall *call=linphone_core_get_current_call(lc);
4176         if (call!=NULL && call->videostream){
4177                 video_stream_set_native_preview_window_id(call->videostream,id);
4178         }else if (lc->previewstream){
4179                 video_preview_set_native_window_id(lc->previewstream,id);
4180         }
4181 #endif
4182 }
4183
4184 /**
4185  * Can be used to disable video showing to free XV port
4186 **/
4187 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4188 #ifdef VIDEO_ENABLED
4189         ms_error("linphone_core_show_video %d", show);
4190         LinphoneCall *call=linphone_core_get_current_call(lc);
4191         if (call!=NULL && call->videostream){
4192                 video_stream_show_video(call->videostream,show);
4193         }
4194 #endif
4195 }
4196
4197 /**
4198  * Tells the core to use a separate window for local camera preview video, instead of
4199  * inserting local view within the remote video window.
4200  *
4201 **/
4202 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4203         lc->use_preview_window=yesno;
4204 }
4205 /**
4206  * @ingroup media_parameters
4207  *returns current device orientation
4208  */
4209 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4210         return lc->device_rotation;
4211 }
4212 /**
4213  * @ingroup media_parameters
4214  * Tells the core the device current orientation. This can be used by capture filters
4215  * on mobile devices to select between portrait/landscape mode and to produce properly
4216  * oriented images. The exact meaning of the value in rotation if left to each device
4217  * specific implementations.
4218  *@param lc  object.
4219  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4220  *
4221 **/
4222 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4223 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4224         lc->device_rotation = rotation;
4225 #ifdef VIDEO_ENABLED
4226         LinphoneCall *call=linphone_core_get_current_call(lc);
4227         if (call!=NULL && call->videostream){
4228                 video_stream_set_device_rotation(call->videostream,rotation);
4229         }
4230 #endif
4231 }
4232
4233 static MSVideoSizeDef supported_resolutions[]={
4234 #ifdef ENABLE_HD
4235         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4236         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4237 #endif
4238         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4239         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4240         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4241         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4242         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4243         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4244         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4245         {       {0,0}                   ,       NULL    }
4246 };
4247
4248 /**
4249  * Returns the zero terminated table of supported video resolutions.
4250  *
4251  * @ingroup media_parameters
4252 **/
4253 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4254         return supported_resolutions;
4255 }
4256
4257 static MSVideoSize video_size_get_by_name(const char *name){
4258         MSVideoSizeDef *pdef=supported_resolutions;
4259         MSVideoSize null_vsize={0,0};
4260         for(;pdef->name!=NULL;pdef++){
4261                 if (strcasecmp(name,pdef->name)==0){
4262                         return pdef->vsize;
4263                 }
4264         }
4265         ms_warning("Video resolution %s is not supported in linphone.",name);
4266         return null_vsize;
4267 }
4268
4269 static const char *video_size_get_name(MSVideoSize vsize){
4270         MSVideoSizeDef *pdef=supported_resolutions;
4271         for(;pdef->name!=NULL;pdef++){
4272                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4273                         return pdef->name;
4274                 }
4275         }
4276         return NULL;
4277 }
4278
4279 static bool_t video_size_supported(MSVideoSize vsize){
4280         if (video_size_get_name(vsize)) return TRUE;
4281         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4282         return FALSE;
4283 }
4284
4285 /**
4286  * Sets the preferred video size.
4287  *
4288  * @ingroup media_parameters
4289  * This applies only to the stream that is captured and sent to the remote party,
4290  * since we accept all standard video size on the receive path.
4291 **/
4292 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4293         if (video_size_supported(vsize)){
4294                 MSVideoSize oldvsize=lc->video_conf.vsize;
4295                 lc->video_conf.vsize=vsize;
4296                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4297                         toggle_video_preview(lc,FALSE);
4298                         toggle_video_preview(lc,TRUE);
4299                 }
4300                 if ( linphone_core_ready(lc))
4301                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4302         }
4303 }
4304
4305 /**
4306  * Sets the preferred video size by its name.
4307  *
4308  * @ingroup media_parameters
4309  * This is identical to linphone_core_set_preferred_video_size() except
4310  * that it takes the name of the video resolution as input.
4311  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4312 **/
4313 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4314         MSVideoSize vsize=video_size_get_by_name(name);
4315         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4316         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4317         else linphone_core_set_preferred_video_size(lc,default_vsize);
4318 }
4319
4320 /**
4321  * Returns the current preferred video size for sending.
4322  *
4323  * @ingroup media_parameters
4324 **/
4325 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4326         return lc->video_conf.vsize;
4327 }
4328
4329 /**
4330  * Ask the core to stream audio from and to files, instead of using the soundcard.
4331 **/
4332 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4333         lc->use_files=yesno;
4334 }
4335
4336 /**
4337  * Sets a wav file to be played when putting somebody on hold,
4338  * or when files are used instead of soundcards (see linphone_core_use_files()).
4339  *
4340  * The file must be a 16 bit linear wav file.
4341 **/
4342 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4343         LinphoneCall *call=linphone_core_get_current_call(lc);
4344         if (lc->play_file!=NULL){
4345                 ms_free(lc->play_file);
4346                 lc->play_file=NULL;
4347         }
4348         if (file!=NULL) {
4349                 lc->play_file=ms_strdup(file);
4350                 if (call && call->audiostream && call->audiostream->ticker)
4351                         audio_stream_play(call->audiostream,file);
4352         }
4353 }
4354
4355
4356 /**
4357  * Sets a wav file where incoming stream is to be recorded,
4358  * when files are used instead of soundcards (see linphone_core_use_files()).
4359  *
4360  * The file must be a 16 bit linear wav file.
4361 **/
4362 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4363         LinphoneCall *call=linphone_core_get_current_call(lc);
4364         if (lc->rec_file!=NULL){
4365                 ms_free(lc->rec_file);
4366                 lc->rec_file=NULL;
4367         }
4368         if (file!=NULL) {
4369                 lc->rec_file=ms_strdup(file);
4370                 if (call && call->audiostream)
4371                         audio_stream_record(call->audiostream,file);
4372         }
4373 }
4374
4375
4376 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4377         LinphoneCall *call=linphone_core_get_current_call (lc);
4378         AudioStream *stream=NULL;
4379         if (call){
4380                 stream=call->audiostream;
4381         }else if (linphone_core_is_in_conference(lc)){
4382                 stream=lc->conf_ctx.local_participant;
4383         }
4384         if (stream){
4385                 return stream->dtmfgen;
4386         }
4387         if (lc->ringstream==NULL){
4388                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4389                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4390                 if (ringcard == NULL)
4391                         return NULL;
4392
4393                 lc->ringstream=ring_start(NULL,0,ringcard);
4394                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4395                 lc->dmfs_playing_start_time=time(NULL);
4396         }else{
4397                 if (lc->dmfs_playing_start_time!=0)
4398                         lc->dmfs_playing_start_time=time(NULL);
4399         }
4400         return lc->ringstream->gendtmf;
4401 }
4402
4403 /**
4404  * @ingroup media_parameters
4405  * Plays a dtmf sound to the local user.
4406  * @param lc #LinphoneCore
4407  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4408  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4409 **/
4410 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4411         MSFilter *f=get_dtmf_gen(lc);
4412         if (f==NULL){
4413                 ms_error("No dtmf generator at this time !");
4414                 return;
4415         }
4416
4417         if (duration_ms>0)
4418                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4419         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4420 }
4421
4422 /**
4423  * @ingroup media_parameters
4424  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4425  * @param lc #LinphoneCore
4426 **/
4427 void linphone_core_play_tone(LinphoneCore *lc){
4428         MSFilter *f=get_dtmf_gen(lc);
4429         MSDtmfGenCustomTone def;
4430         if (f==NULL){
4431                 ms_error("No dtmf generator at this time !");
4432                 return;
4433         }
4434         def.duration=300;
4435         def.frequency=500;
4436         def.amplitude=1;
4437         def.interval=2000;
4438         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4439 }
4440
4441 /**
4442  * @ingroup media_parameters
4443  *
4444  * Stops playing a dtmf started by linphone_core_play_dtmf().
4445 **/
4446 void linphone_core_stop_dtmf(LinphoneCore *lc){
4447         MSFilter *f=get_dtmf_gen(lc);
4448         if (f!=NULL)
4449                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4450 }
4451
4452
4453
4454 /**
4455  * Retrieves the user pointer that was given to linphone_core_new()
4456  *
4457  * @ingroup initializing
4458 **/
4459 void *linphone_core_get_user_data(LinphoneCore *lc){
4460         return lc->data;
4461 }
4462
4463 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4464         lc->data=userdata;
4465 }
4466
4467 int linphone_core_get_mtu(const LinphoneCore *lc){
4468         return lc->net_conf.mtu;
4469 }
4470
4471 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4472         lc->net_conf.mtu=mtu;
4473         if (mtu>0){
4474                 if (mtu<500){
4475                         ms_error("MTU too small !");
4476                         mtu=500;
4477                 }
4478                 ms_set_mtu(mtu);
4479                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4480         }else ms_set_mtu(0);//use mediastreamer2 default value
4481 }
4482
4483 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4484         lc->wait_cb=cb;
4485         lc->wait_ctx=user_context;
4486 }
4487
4488 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4489         if (lc->wait_cb){
4490                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4491         }
4492 }
4493
4494 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4495         if (lc->wait_cb){
4496                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4497         }else{
4498 #ifdef WIN32
4499                 Sleep(50000);
4500 #else
4501                 usleep(50000);
4502 #endif
4503         }
4504 }
4505
4506 void linphone_core_stop_waiting(LinphoneCore *lc){
4507         if (lc->wait_cb){
4508                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4509         }
4510 }
4511
4512 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4513         lc->rtptf=factories;
4514 }
4515
4516 /**
4517  * Retrieve RTP statistics regarding current call.
4518  * @param local RTP statistics computed locally.
4519  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4520  *
4521  * @note Remote RTP statistics is not implemented yet.
4522  *
4523  * @returns 0 or -1 if no call is running.
4524 **/
4525
4526 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
4527         LinphoneCall *call=linphone_core_get_current_call (lc);
4528         if (call!=NULL){
4529                 if (call->audiostream!=NULL){
4530                         memset(remote,0,sizeof(*remote));
4531                         audio_stream_get_local_rtp_stats (call->audiostream,local);
4532                         return 0;
4533                 }
4534         }
4535         return -1;
4536 }
4537
4538 void net_config_uninit(LinphoneCore *lc)
4539 {
4540         net_config_t *config=&lc->net_conf;
4541
4542         if (config->stun_server!=NULL){
4543                 ms_free(lc->net_conf.stun_server);
4544         }
4545         if (config->nat_address!=NULL){
4546                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
4547                 ms_free(lc->net_conf.nat_address);
4548         }
4549         if (lc->net_conf.nat_address_ip !=NULL){
4550                 ms_free(lc->net_conf.nat_address_ip);
4551         }
4552         lp_config_set_int(lc->config,"net","mtu",config->mtu);
4553 }
4554
4555
4556 void sip_config_uninit(LinphoneCore *lc)
4557 {
4558         MSList *elem;
4559         int i;
4560         sip_config_t *config=&lc->sip_conf;
4561
4562         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
4563         lp_config_set_string(lc->config,"sip","contact",config->contact);
4564         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
4565         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
4566         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
4567         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
4568         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
4569
4570
4571
4572
4573         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
4574                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
4575                 linphone_proxy_config_edit(cfg);        /* to unregister */
4576         }
4577
4578         for (i=0;i<20;i++){
4579                 sal_iterate(lc->sal);
4580 #ifndef WIN32
4581                 usleep(100000);
4582 #else
4583                 Sleep(100);
4584 #endif
4585         }
4586
4587         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
4588         ms_list_free(config->proxies);
4589         config->proxies=NULL;
4590
4591         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
4592
4593         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
4594         ms_list_free(lc->auth_info);
4595         lc->auth_info=NULL;
4596
4597         sal_uninit(lc->sal);
4598         lc->sal=NULL;
4599
4600         if (lc->sip_conf.guessed_contact)
4601                 ms_free(lc->sip_conf.guessed_contact);
4602         if (config->contact)
4603                 ms_free(config->contact);
4604
4605 }
4606
4607 void rtp_config_uninit(LinphoneCore *lc)
4608 {
4609         rtp_config_t *config=&lc->rtp_conf;
4610         if (config->audio_rtp_min_port == config->audio_rtp_max_port) {
4611                 lp_config_set_int(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port);
4612         } else {
4613                 lp_config_set_range(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port, config->audio_rtp_max_port);
4614         }
4615         if (config->video_rtp_min_port == config->video_rtp_max_port) {
4616                 lp_config_set_int(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port);
4617         } else {
4618                 lp_config_set_range(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port, config->video_rtp_max_port);
4619         }
4620         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
4621         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
4622         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
4623         lp_config_set_int(lc->config,"rtp","audio_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
4624         lp_config_set_int(lc->config,"rtp","video_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
4625 }
4626
4627 static void sound_config_uninit(LinphoneCore *lc)
4628 {
4629         sound_config_t *config=&lc->sound_conf;
4630         ms_free(config->cards);
4631
4632         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
4633
4634         if (config->local_ring) ms_free(config->local_ring);
4635         if (config->remote_ring) ms_free(config->remote_ring);
4636         ms_snd_card_manager_destroy();
4637 }
4638
4639 static void video_config_uninit(LinphoneCore *lc)
4640 {
4641         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
4642         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4643         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4644         if (lc->video_conf.cams)
4645                 ms_free(lc->video_conf.cams);
4646 }
4647
4648 void _linphone_core_codec_config_write(LinphoneCore *lc){
4649         if (linphone_core_ready(lc)){
4650                 PayloadType *pt;
4651                 codecs_config_t *config=&lc->codecs_conf;
4652                 MSList *node;
4653                 char key[50];
4654                 int index;
4655                 index=0;
4656                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
4657                         pt=(PayloadType*)(node->data);
4658                         sprintf(key,"audio_codec_%i",index);
4659                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4660                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4661                         lp_config_set_int(lc->config,key,"channels",pt->channels);
4662                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4663                         index++;
4664                 }
4665                 sprintf(key,"audio_codec_%i",index);
4666                 lp_config_clean_section (lc->config,key);
4667
4668                 index=0;
4669                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
4670                         pt=(PayloadType*)(node->data);
4671                         sprintf(key,"video_codec_%i",index);
4672                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4673                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4674                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4675                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
4676                         index++;
4677                 }
4678                 sprintf(key,"video_codec_%i",index);
4679                 lp_config_clean_section (lc->config,key);
4680         }
4681 }
4682
4683 static void codecs_config_uninit(LinphoneCore *lc)
4684 {
4685         _linphone_core_codec_config_write(lc);
4686         ms_list_free(lc->codecs_conf.audio_codecs);
4687         ms_list_free(lc->codecs_conf.video_codecs);
4688 }
4689
4690 void ui_config_uninit(LinphoneCore* lc)
4691 {
4692         if (lc->friends){
4693                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
4694                 ms_list_free(lc->friends);
4695                 lc->friends=NULL;
4696         }
4697 }
4698
4699 /**
4700  * Returns the LpConfig object used to manage the storage (config) file.
4701  *
4702  * @ingroup misc
4703  * The application can use the LpConfig object to insert its own private
4704  * sections and pairs of key=value in the configuration file.
4705  *
4706 **/
4707 LpConfig *linphone_core_get_config(LinphoneCore *lc){
4708         return lc->config;
4709 }
4710
4711 static void linphone_core_uninit(LinphoneCore *lc)
4712 {
4713         linphone_core_free_hooks(lc);
4714         while(lc->calls)
4715         {
4716                 LinphoneCall *the_call = lc->calls->data;
4717                 linphone_core_terminate_call(lc,the_call);
4718                 linphone_core_iterate(lc);
4719 #ifdef WIN32
4720                 Sleep(50000);
4721 #else
4722                 usleep(50000);
4723 #endif
4724         }
4725         if (lc->friends)
4726                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
4727         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
4728 #ifdef VIDEO_ENABLED
4729         if (lc->previewstream!=NULL){
4730                 video_preview_stop(lc->previewstream);
4731                 lc->previewstream=NULL;
4732         }
4733 #endif
4734         ms_event_queue_destroy(lc->msevq);
4735         lc->msevq=NULL;
4736         /* save all config */
4737         net_config_uninit(lc);
4738         rtp_config_uninit(lc);
4739         if (lc->ringstream) ring_stop(lc->ringstream);
4740         sound_config_uninit(lc);
4741         video_config_uninit(lc);
4742         codecs_config_uninit(lc);
4743         ui_config_uninit(lc);
4744         sip_config_uninit(lc);
4745         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
4746         lp_config_destroy(lc->config);
4747         lc->config = NULL; /* Mark the config as NULL to block further calls */
4748         sip_setup_unregister_all();
4749
4750         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4751         lc->call_logs=ms_list_free(lc->call_logs);
4752
4753         linphone_core_free_payload_types(lc);
4754         ortp_exit();
4755         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
4756 #ifdef TUNNEL_ENABLED
4757         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
4758 #endif
4759 }
4760
4761 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
4762         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
4763         // second get the list of available proxies
4764         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4765         for(;elem!=NULL;elem=elem->next){
4766                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4767                 if (linphone_proxy_config_register_enabled(cfg) ) {
4768                         if (!isReachable) {
4769                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
4770                         }else{
4771                                 cfg->commit=TRUE;
4772                         }
4773                 }
4774         }
4775         lc->netup_time=curtime;
4776         lc->network_reachable=isReachable;
4777         if(!isReachable) {
4778                 sal_reset_transports(lc->sal);
4779         }
4780 }
4781
4782 void linphone_core_refresh_registers(LinphoneCore* lc) {
4783         const MSList *elem;
4784         if (!lc->network_reachable) {
4785                 ms_warning("Refresh register operation not available (network unreachable)");
4786                 return;
4787         }
4788         elem=linphone_core_get_proxy_config_list(lc);
4789         for(;elem!=NULL;elem=elem->next){
4790                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4791                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
4792                         linphone_proxy_config_refresh_register(cfg);
4793                 }
4794         }
4795 }
4796
4797 void __linphone_core_invalidate_registers(LinphoneCore* lc){
4798         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4799         for(;elem!=NULL;elem=elem->next){
4800                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4801                 if (linphone_proxy_config_register_enabled(cfg)) {
4802                         linphone_proxy_config_edit(cfg);
4803                         linphone_proxy_config_done(cfg);
4804                 }
4805         }
4806 }
4807
4808 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
4809         //first disable automatic mode
4810         if (lc->auto_net_state_mon) {
4811                 ms_message("Disabling automatic network state monitoring");
4812                 lc->auto_net_state_mon=FALSE;
4813         }
4814         set_network_reachable(lc,isReachable, ms_time(NULL));
4815 }
4816
4817 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
4818         return lc->network_reachable;
4819 }
4820 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
4821         return sal_get_socket(lc->sal);
4822 }
4823 /**
4824  * Destroys a LinphoneCore
4825  *
4826  * @ingroup initializing
4827 **/
4828 void linphone_core_destroy(LinphoneCore *lc){
4829         linphone_core_uninit(lc);
4830         ms_free(lc);
4831 }
4832 /**
4833  * Get the number of Call
4834  *
4835  * @ingroup call_control
4836 **/
4837 int linphone_core_get_calls_nb(const LinphoneCore *lc){
4838         return  ms_list_size(lc->calls);;
4839 }
4840
4841 /**
4842  * Check if we do not have exceed the number of simultaneous call
4843  *
4844  * @ingroup call_control
4845 **/
4846 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
4847 {
4848         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
4849                 return TRUE;
4850         ms_message("Maximum amount of simultaneous calls reached !");
4851         return FALSE;
4852 }
4853
4854
4855 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
4856 {
4857         if(linphone_core_can_we_add_call(lc))
4858         {
4859                 lc->calls = ms_list_append(lc->calls,call);
4860                 return 0;
4861         }
4862         return -1;
4863 }
4864
4865 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
4866 {
4867         MSList *it;
4868         MSList *the_calls = lc->calls;
4869
4870         it=ms_list_find(the_calls,call);
4871         if (it)
4872         {
4873                 the_calls = ms_list_remove_link(the_calls,it);
4874         }
4875         else
4876         {
4877                 ms_warning("could not find the call into the list\n");
4878                 return -1;
4879         }
4880         lc->calls = the_calls;
4881         return 0;
4882 }
4883
4884 /**
4885  * Specifiies a ring back tone to be played to far end during incoming calls.
4886 **/
4887 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
4888         if (lc->sound_conf.ringback_tone){
4889                 ms_free(lc->sound_conf.ringback_tone);
4890                 lc->sound_conf.ringback_tone=NULL;
4891         }
4892         if (file)
4893                 lc->sound_conf.ringback_tone=ms_strdup(file);
4894 }
4895
4896 /**
4897  * Returns the ring back tone played to far end during incoming calls.
4898 **/
4899 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
4900         return lc->sound_conf.ringback_tone;
4901 }
4902
4903 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
4904         const MSList *elem;
4905         for(elem=from;elem!=NULL;elem=elem->next){
4906                 PayloadType *pt=(PayloadType*)elem->data;
4907                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
4908                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
4909                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
4910                         return pt;
4911                 }
4912         }
4913         return NULL;
4914 }
4915
4916
4917 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
4918         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
4919         if (result)  {
4920                 return result;
4921         } else {
4922                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
4923                 if (result) {
4924                         return result;
4925                 }
4926         }
4927         /*not found*/
4928         return NULL;
4929 }
4930
4931 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
4932         switch(gs){
4933                 case LinphoneGlobalOff:
4934                         return "LinphoneGlobalOff";
4935                 break;
4936                 case LinphoneGlobalOn:
4937                         return "LinphoneGlobalOn";
4938                 break;
4939                 case LinphoneGlobalStartup:
4940                         return "LinphoneGlobalStartup";
4941                 break;
4942                 case LinphoneGlobalShutdown:
4943                         return "LinphoneGlobalShutdown";
4944                 break;
4945         }
4946         return NULL;
4947 }
4948
4949 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
4950         return lc->state;
4951 }
4952
4953 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
4954         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
4955         linphone_core_init_default_params(lc, p);
4956         return p;
4957 }
4958
4959 const char *linphone_reason_to_string(LinphoneReason err){
4960         switch(err){
4961                 case LinphoneReasonNone:
4962                         return "No error";
4963                 case LinphoneReasonNoResponse:
4964                         return "No response";
4965                 case LinphoneReasonBadCredentials:
4966                         return "Bad credentials";
4967                 case LinphoneReasonDeclined:
4968                         return "Call declined";
4969                 case LinphoneReasonNotFound:
4970                         return "User not found";
4971                 case LinphoneReasonNotAnswered:
4972                         return "Not answered";
4973         }
4974         return "unknown error";
4975 }
4976
4977 const char *linphone_error_to_string(LinphoneReason err){
4978         return linphone_reason_to_string(err);
4979 }
4980 /**
4981  * Enables signaling keep alive
4982  */
4983 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
4984         if (enable > 0) {
4985                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
4986         } else {
4987                 sal_set_keepalive_period(lc->sal,0);
4988         }
4989 }
4990 /**
4991  * Is signaling keep alive enabled
4992  */
4993 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
4994         return sal_get_keepalive_period(lc->sal) > 0;
4995 }
4996
4997 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
4998         get_dtmf_gen(lc); /*make sure ring stream is started*/
4999         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
5000 }
5001
5002 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
5003         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
5004                 ring_stop(lc->ringstream);
5005                 lc->ringstream=NULL;
5006         }
5007 }
5008
5009 int linphone_core_get_max_calls(LinphoneCore *lc) {
5010         return lc->max_calls;
5011 }
5012 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
5013         lc->max_calls=max;
5014 }
5015
5016 typedef struct Hook{
5017         LinphoneCoreIterateHook fun;
5018         void *data;
5019 }Hook;
5020
5021 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
5022         Hook *h=ms_new(Hook,1);
5023         h->fun=hook;
5024         h->data=hook_data;
5025         return h;
5026 }
5027
5028 static void hook_invoke(Hook *h){
5029         h->fun(h->data);
5030 }
5031
5032 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5033         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
5034 }
5035
5036 static void linphone_core_run_hooks(LinphoneCore *lc){
5037         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
5038 }
5039
5040 static void linphone_core_free_hooks(LinphoneCore *lc){
5041         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
5042         ms_list_free(lc->hooks);
5043         lc->hooks=NULL;
5044 }
5045
5046 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5047         MSList *elem;
5048         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
5049                 Hook *h=(Hook*)elem->data;
5050                 if (h->fun==hook && h->data==hook_data){
5051                         ms_list_remove_link(lc->hooks,elem);
5052                         ms_free(h);
5053                         return;
5054                 }
5055         }
5056         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
5057 }
5058
5059 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
5060         if (lc->zrtp_secrets_cache != NULL) {
5061                 ms_free(lc->zrtp_secrets_cache);
5062         }
5063         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
5064 }
5065
5066 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
5067         if (uri == NULL) return NULL;
5068         MSList *calls=lc->calls;
5069         while(calls) {
5070                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5071                 calls=calls->next;
5072                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5073                 char *current_uri=linphone_address_as_string_uri_only(address);
5074                 if (strcmp(uri,current_uri)==0) {
5075                         ms_free(current_uri);
5076                         return c;
5077                 } else {
5078                         ms_free(current_uri);
5079                 }
5080         }
5081         return NULL;
5082 }
5083
5084
5085 /**
5086  * Check if a call will need the sound resources.
5087  *
5088  * @ingroup call_control
5089  * @param lc The LinphoneCore
5090 **/
5091 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5092         MSList *calls=lc->calls;
5093         while(calls) {
5094                 LinphoneCall *c=(LinphoneCall*)calls->data;
5095                 calls=calls->next;
5096                 switch (c->state) {
5097                         case LinphoneCallOutgoingInit:
5098                         case LinphoneCallOutgoingProgress:
5099                         case LinphoneCallOutgoingRinging:
5100                         case LinphoneCallOutgoingEarlyMedia:
5101                         case LinphoneCallConnected:
5102                         case LinphoneCallRefered:
5103                         case LinphoneCallIncomingEarlyMedia:
5104                         case LinphoneCallUpdating:
5105                                 return TRUE;
5106                         default:
5107                                 break;
5108                 }
5109         }
5110         return FALSE;
5111 }
5112
5113 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5114         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5115 }
5116
5117 /**
5118  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5119 **/
5120 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5121         switch(menc){
5122                 case LinphoneMediaEncryptionSRTP:
5123                         return ortp_srtp_supported();
5124                 case LinphoneMediaEncryptionZRTP:
5125                         return ortp_zrtp_available();
5126                 case LinphoneMediaEncryptionNone:
5127                         return TRUE;
5128         }
5129         return FALSE;
5130 }
5131
5132 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5133         const char *type="none";
5134         int ret=0;
5135         if (menc == LinphoneMediaEncryptionSRTP){
5136                 if (!ortp_srtp_supported()){
5137                         ms_warning("SRTP not supported by library.");
5138                         type="none";
5139                         ret=-1;
5140                 }else type="srtp";
5141         }else if (menc == LinphoneMediaEncryptionZRTP){
5142                 if (!ortp_zrtp_available()){
5143                         ms_warning("ZRTP not supported by library.");
5144                         type="none";
5145                         ret=-1;
5146                 }else type="zrtp";
5147         }
5148         lp_config_set_string(lc->config,"sip","media_encryption",type);
5149         return ret;
5150 }
5151
5152 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5153         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5154
5155         if (menc == NULL)
5156                 return LinphoneMediaEncryptionNone;
5157         else if (strcmp(menc, "srtp")==0)
5158                 return LinphoneMediaEncryptionSRTP;
5159         else if (strcmp(menc, "zrtp")==0)
5160                 return LinphoneMediaEncryptionZRTP;
5161         else
5162                 return LinphoneMediaEncryptionNone;
5163 }
5164
5165 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5166         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5167 }
5168
5169 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5170         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5171 }
5172
5173 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5174         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5175         params->media_encryption=linphone_core_get_media_encryption(lc);
5176         params->in_conference=FALSE;
5177 }
5178
5179 void linphone_call_zoom_video(LinphoneCall* call, float zoom_factor, float* cx, float* cy) {
5180         VideoStream* vstream = call->videostream;
5181         if (vstream) {
5182                 float zoom[3];
5183
5184                 if (zoom_factor < 1)
5185                         zoom_factor = 1;
5186                 float halfsize = 0.5 * 1.0 / zoom_factor;
5187
5188                 if ((*cx - halfsize) < 0)
5189                         *cx = 0 + halfsize;
5190                 if ((*cx + halfsize) > 1)
5191                         *cx = 1 - halfsize;
5192                 if ((*cy - halfsize) < 0)
5193                         *cy = 0 + halfsize;
5194                 if ((*cy + halfsize) > 1)
5195                         *cy = 1 - halfsize;
5196
5197                 zoom[0] = zoom_factor;
5198                 zoom[1] = *cx;
5199                 zoom[2] = *cy;
5200                 ms_filter_call_method(vstream->output, MS_VIDEO_DISPLAY_ZOOM, &zoom);
5201         }else ms_warning("Could not apply zoom: video output wasn't activated.");
5202 }
5203
5204 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5205         if (lc->device_id) ms_free(lc->device_id);
5206         lc->device_id=ms_strdup(device_id);
5207 }
5208 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5209         return lc->device_id;
5210 }
5211
5212 /**
5213  * Set the DSCP field for SIP signaling channel.
5214  *
5215  * @ingroup network_parameters
5216  * * The DSCP defines the quality of service in IP packets.
5217  *
5218 **/
5219 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5220         sal_set_dscp(lc->sal,dscp);
5221         if (linphone_core_ready(lc))
5222                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5223 }
5224
5225 /**
5226  * Get the DSCP field for SIP signaling channel.
5227  *
5228  * @ingroup network_parameters
5229  * * The DSCP defines the quality of service in IP packets.
5230  *
5231 **/
5232 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5233         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5234 }
5235
5236 /**
5237  * Set the DSCP field for outgoing audio streams.
5238  *
5239  * @ingroup network_parameters
5240  * The DSCP defines the quality of service in IP packets.
5241  *
5242 **/
5243 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5244         if (linphone_core_ready(lc))
5245                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5246 }
5247
5248 /**
5249  * Get the DSCP field for outgoing audio streams.
5250  *
5251  * @ingroup network_parameters
5252  * The DSCP defines the quality of service in IP packets.
5253  *
5254 **/
5255 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5256         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5257 }
5258
5259 /**
5260  * Set the DSCP field for outgoing video streams.
5261  *
5262  * @ingroup network_parameters
5263  * The DSCP defines the quality of service in IP packets.
5264  *
5265 **/
5266 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5267         if (linphone_core_ready(lc))
5268                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5269
5270 }
5271
5272 /**
5273  * Get the DSCP field for outgoing video streams.
5274  *
5275  * @ingroup network_parameters
5276  * The DSCP defines the quality of service in IP packets.
5277  *
5278 **/
5279 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5280         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5281 }