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

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