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