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

   1 /*
   2 linphone
   3 Copyright (C) 2000  Simon MORLAT (simon.morlat@linphone.org)
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19
  20 #define _GNU_SOURCE
  21
  22 #include "linphonecore.h"
  23 #include "sipsetup.h"
  24 #include "lpconfig.h"
  25 #include "private.h"
  26
  27 #include <ortp/telephonyevents.h>
  28 #include <ortp/zrtp.h>
  29 #include "mediastreamer2/mediastream.h"
  30 #include "mediastreamer2/mseventqueue.h"
  31 #include "mediastreamer2/msvolume.h"
  32 #include "mediastreamer2/msequalizer.h"
  33 #include "mediastreamer2/dtmfgen.h"
  34
  35 #ifdef INET6
  36 #ifndef WIN32
  37 #include <netdb.h>
  38 #endif
  39 #endif
  40
  41 #ifdef HAVE_CONFIG_H
  42 #include "config.h"
  43 #endif
  44
  45 /*#define UNSTANDART_GSM_11K 1*/
  46
  47 #define ROOT_CA_FILE PACKAGE_DATA_DIR "/linphone/rootca.pem"
  48
  49 static const char *liblinphone_version=LIBLINPHONE_VERSION;
  50 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
  51 static void linphone_core_run_hooks(LinphoneCore *lc);
  52 static void linphone_core_free_hooks(LinphoneCore *lc);
  53
  54 #include "enum.h"
  55 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
  56 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result);
  57 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
  58
  59 /* relative path where is stored local ring*/
  60 #define LOCAL_RING "rings/oldphone.wav"
  61 /* same for remote ring (ringback)*/
  62 #define REMOTE_RING "ringback.wav"
  63 #define HOLD_MUSIC "rings/toy-mono.wav"
  64
  65
  66 extern SalCallbacks linphone_sal_callbacks;
  67
  68 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
  69 {
  70   obj->_func=func;
  71   obj->_user_data=ud;
  72 }
  73
  74 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
  75         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
  76         return 0;
  77 }
  78
  79
  80 /*prevent a gcc bug with %c*/
  81 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
  82 #if !defined(_WIN32_WCE)
  83         return strftime(s, max, fmt, tm);
  84 #else
  85         return 0;
  86         /*FIXME*/
  87 #endif /*_WIN32_WCE*/
  88 }
  89
  90 static void set_call_log_date(LinphoneCallLog *cl, time_t start_time){
  91         struct tm loctime;
  92 #ifdef WIN32
  93 #if !defined(_WIN32_WCE)
  94         loctime=*localtime(&start_time);
  95         /*FIXME*/
  96 #endif /*_WIN32_WCE*/
  97 #else
  98         localtime_r(&start_time,&loctime);
  99 #endif
 100         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",&loctime);
 101 }
 102
 103 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 104         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 105         cl->dir=call->dir;
 106         cl->start_date_time=call->start_time;
 107         set_call_log_date(cl,cl->start_date_time);
 108         cl->from=from;
 109         cl->to=to;
 110     cl->status=LinphoneCallAborted; /*default status*/
 111         return cl;
 112 }
 113
 114 void call_logs_write_to_config_file(LinphoneCore *lc){
 115         MSList *elem;
 116         char logsection[32];
 117         int i;
 118         char *tmp;
 119         LpConfig *cfg=lc->config;
 120
 121         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
 122
 123         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
 124                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
 125                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 126                 lp_config_clean_section(cfg,logsection);
 127                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
 128                 lp_config_set_int(cfg,logsection,"status",cl->status);
 129                 tmp=linphone_address_as_string(cl->from);
 130                 lp_config_set_string(cfg,logsection,"from",tmp);
 131                 ms_free(tmp);
 132                 tmp=linphone_address_as_string(cl->to);
 133                 lp_config_set_string(cfg,logsection,"to",tmp);
 134                 ms_free(tmp);
 135                 if (cl->start_date_time)
 136                         lp_config_set_int64(cfg,logsection,"start_date_time",(int64_t)cl->start_date_time);
 137                 else lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
 138                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
 139                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
 140                 lp_config_set_float(cfg,logsection,"quality",cl->quality);
 141                 lp_config_set_int(cfg,logsection,"video_enabled", cl->video_enabled);
 142         }
 143         for(;i<lc->max_call_logs;++i){
 144                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 145                 lp_config_clean_section(cfg,logsection);
 146         }
 147 }
 148
 149 static time_t string_to_time(const char *date){
 150 #ifndef WIN32
 151         struct tm tmtime={0};
 152         strptime(date,"%c",&tmtime);
 153         return mktime(&tmtime);
 154 #else
 155         return 0;
 156 #endif
 157 }
 158
 159 static void call_logs_read_from_config_file(LinphoneCore *lc){
 160         char logsection[32];
 161         int i;
 162         const char *tmp;
 163         uint64_t sec;
 164         LpConfig *cfg=lc->config;
 165         for(i=0;;++i){
 166                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 167                 if (lp_config_has_section(cfg,logsection)){
 168                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 169                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
 170                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
 171                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
 172                         if (tmp) cl->from=linphone_address_new(tmp);
 173                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
 174                         if (tmp) cl->to=linphone_address_new(tmp);
 175                         sec=lp_config_get_int64(cfg,logsection,"start_date_time",0);
 176                         if (sec) {
 177                                 /*new call log format with date expressed in seconds */
 178                                 cl->start_date_time=(time_t)sec;
 179                                 set_call_log_date(cl,cl->start_date_time);
 180                         }else{
 181                                 tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
 182                                 if (tmp) {
 183                                         strncpy(cl->start_date,tmp,sizeof(cl->start_date));
 184                                         cl->start_date_time=string_to_time(cl->start_date);
 185                                 }
 186                         }
 187                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
 188                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
 189                         if (tmp) cl->refkey=ms_strdup(tmp);
 190                         cl->quality=lp_config_get_float(cfg,logsection,"quality",-1);
 191                         cl->video_enabled=lp_config_get_int(cfg,logsection,"video_enabled",0);
 192                         lc->call_logs=ms_list_append(lc->call_logs,cl);
 193                 }else break;
 194         }
 195 }
 196
 197
 198
 199 /**
 200  * @addtogroup call_logs
 201  * @{
 202 **/
 203
 204 /**
 205  * Returns a human readable string describing the call.
 206  *
 207  * @note: the returned char* must be freed by the application (use ms_free()).
 208 **/
 209 char * linphone_call_log_to_str(LinphoneCallLog *cl){
 210         char *status;
 211         char *tmp;
 212         char *from=linphone_address_as_string (cl->from);
 213         char *to=linphone_address_as_string (cl->to);
 214         switch(cl->status){
 215                 case LinphoneCallAborted:
 216                         status=_("aborted");
 217                         break;
 218                 case LinphoneCallSuccess:
 219                         status=_("completed");
 220                         break;
 221                 case LinphoneCallMissed:
 222                         status=_("missed");
 223                         break;
 224                 default:
 225                         status="unknown";
 226         }
 227         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
 228                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
 229                         cl->start_date,
 230                         from,
 231                         to,
 232                         status,
 233                         cl->duration/60,
 234                         cl->duration%60);
 235         ms_free(from);
 236         ms_free(to);
 237         return tmp;
 238 }
 239
 240 /**
 241  * Returns RTP statistics computed locally regarding the call.
 242  *
 243 **/
 244 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
 245         return &cl->local_stats;
 246 }
 247
 248 /**
 249  * Returns RTP statistics computed by remote end and sent back via RTCP.
 250  *
 251  * @note Not implemented yet.
 252 **/
 253 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
 254         return &cl->remote_stats;
 255 }
 256
 257 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
 258         cl->user_pointer=up;
 259 }
 260
 261 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
 262         return cl->user_pointer;
 263 }
 264
 265
 266
 267 /**
 268  * Associate a persistent reference key to the call log.
 269  *
 270  * The reference key can be for example an id to an external database.
 271  * It is stored in the config file, thus can survive to process exits/restarts.
 272  *
 273 **/
 274 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
 275         if (cl->refkey!=NULL){
 276                 ms_free(cl->refkey);
 277                 cl->refkey=NULL;
 278         }
 279         if (refkey) cl->refkey=ms_strdup(refkey);
 280 }
 281
 282 /**
 283  * Get the persistent reference key associated to the call log.
 284  *
 285  * The reference key can be for example an id to an external database.
 286  * It is stored in the config file, thus can survive to process exits/restarts.
 287  *
 288 **/
 289 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
 290         return cl->refkey;
 291 }
 292
 293 /** @} */
 294
 295 void linphone_call_log_destroy(LinphoneCallLog *cl){
 296         if (cl->from!=NULL) linphone_address_destroy(cl->from);
 297         if (cl->to!=NULL) linphone_address_destroy(cl->to);
 298         if (cl->refkey!=NULL) ms_free(cl->refkey);
 299         ms_free(cl);
 300 }
 301
 302 /**
 303  * Returns TRUE if the LinphoneCall asked to autoanswer
 304  *
 305 **/
 306 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
 307         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
 308         if(call)
 309                 return sal_call_autoanswer_asked(call->op);
 310         else
 311                 return FALSE;
 312 }
 313
 314 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
 315         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
 316         if (call)  return linphone_call_get_duration(call);
 317         return -1;
 318 }
 319
 320 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
 321         LinphoneCall *call=linphone_core_get_current_call(lc);
 322         if (call==NULL) return NULL;
 323         return linphone_call_get_remote_address(call);
 324 }
 325
 326 /**
 327  * Enable logs in supplied FILE*.
 328  *
 329  * @ingroup misc
 330  *
 331  * @param file a C FILE* where to fprintf logs. If null stdout is used.
 332  *
 333 **/
 334 void linphone_core_enable_logs(FILE *file){
 335         if (file==NULL) file=stdout;
 336         ortp_set_log_file(file);
 337         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 338 }
 339
 340 /**
 341  * Enable logs through the user's supplied log callback.
 342  *
 343  * @ingroup misc
 344  *
 345  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
 346  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
 347  *
 348 **/
 349 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
 350         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 351         ortp_set_log_handler(logfunc);
 352 }
 353
 354 /**
 355  * Entirely disable logging.
 356  *
 357  * @ingroup misc
 358 **/
 359 void linphone_core_disable_logs(){
 360         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
 361 }
 362
 363
 364 static void net_config_read (LinphoneCore *lc)
 365 {
 366         int tmp;
 367         const char *tmpstr;
 368         LpConfig *config=lc->config;
 369
 370         lc->net_conf.nat_address_ip = NULL;
 371         tmp=lp_config_get_int(config,"net","download_bw",0);
 372         linphone_core_set_download_bandwidth(lc,tmp);
 373         tmp=lp_config_get_int(config,"net","upload_bw",0);
 374         linphone_core_set_upload_bandwidth(lc,tmp);
 375         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
 376         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
 377         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
 378         linphone_core_set_nat_address(lc,tmpstr);
 379         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
 380         linphone_core_set_firewall_policy(lc,tmp);
 381         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
 382         lc->net_conf.nat_sdp_only=tmp;
 383         tmp=lp_config_get_int(lc->config,"net","mtu",0);
 384         linphone_core_set_mtu(lc,tmp);
 385         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 386         linphone_core_set_download_ptime(lc,tmp);
 387
 388 }
 389
 390 static void build_sound_devices_table(LinphoneCore *lc){
 391         const char **devices;
 392         const char **old;
 393         int ndev;
 394         int i;
 395         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
 396         ndev=ms_list_size(elem);
 397         devices=ms_malloc((ndev+1)*sizeof(const char *));
 398         for (i=0;elem!=NULL;elem=elem->next,i++){
 399                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
 400         }
 401         devices[ndev]=NULL;
 402         old=lc->sound_conf.cards;
 403         lc->sound_conf.cards=devices;
 404         if (old!=NULL) ms_free(old);
 405 }
 406
 407 static void sound_config_read(LinphoneCore *lc)
 408 {
 409         int tmp;
 410         const char *tmpbuf;
 411         const char *devid;
 412         float gain=0;
 413 #ifdef __linux
 414         /*alsadev let the user use custom alsa device within linphone*/
 415         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
 416         if (devid){
 417                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
 418                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
 419         }
 420         tmp=lp_config_get_int(lc->config,"sound","alsa_forced_rate",-1);
 421         if (tmp>0) ms_alsa_card_set_forced_sample_rate(tmp);
 422 #endif
 423         /* retrieve all sound devices */
 424         build_sound_devices_table(lc);
 425
 426         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
 427         linphone_core_set_playback_device(lc,devid);
 428
 429         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
 430         linphone_core_set_ringer_device(lc,devid);
 431
 432         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
 433         linphone_core_set_capture_device(lc,devid);
 434
 435 /*
 436         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
 437         linphone_core_set_play_level(lc,tmp);
 438         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
 439         linphone_core_set_ring_level(lc,tmp);
 440         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
 441         linphone_core_set_rec_level(lc,tmp);
 442         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
 443         linphone_core_set_sound_source(lc,tmpbuf[0]);
 444 */
 445
 446         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 447         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
 448         if (ortp_file_exist(tmpbuf)==-1) {
 449                 ms_warning("%s does not exist",tmpbuf);
 450                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 451         }
 452         if (strstr(tmpbuf,".wav")==NULL){
 453                 /* it currently uses old sound files, so replace them */
 454                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 455         }
 456         linphone_core_set_ring(lc,tmpbuf);
 457
 458         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 459         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
 460         if (ortp_file_exist(tmpbuf)==-1){
 461                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 462         }
 463         if (strstr(tmpbuf,".wav")==NULL){
 464                 /* it currently uses old sound files, so replace them */
 465                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 466         }
 467         linphone_core_set_ringback(lc,tmpbuf);
 468
 469         linphone_core_set_play_file(lc,lp_config_get_string(lc->config,"sound","hold_music",PACKAGE_SOUND_DIR "/" HOLD_MUSIC));
 470         check_sound_device(lc);
 471         lc->sound_conf.latency=0;
 472 #ifndef __ios
 473     tmp=TRUE;
 474 #else
 475     tmp=FALSE; /* on iOS we have builtin echo cancellation.*/
 476 #endif
 477     tmp=lp_config_get_int(lc->config,"sound","echocancellation",tmp);
 478         linphone_core_enable_echo_cancellation(lc,tmp);
 479         linphone_core_enable_echo_limiter(lc,
 480                 lp_config_get_int(lc->config,"sound","echolimiter",0));
 481         linphone_core_enable_agc(lc,
 482                 lp_config_get_int(lc->config,"sound","agc",0));
 483
 484         gain=lp_config_get_float(lc->config,"sound","playback_gain_db",0);
 485         linphone_core_set_playback_gain_db (lc,gain);
 486
 487         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
 488
 489         /*just parse requested stream feature once at start to print out eventual errors*/
 490         linphone_core_get_audio_features(lc);
 491 }
 492
 493 static void sip_config_read(LinphoneCore *lc)
 494 {
 495         char *contact;
 496         const char *tmpstr;
 497         LCSipTransports tr;
 498         int i,tmp;
 499         int ipv6;
 500         int random_port;
 501
 502         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
 503         linphone_core_set_use_info_for_dtmf(lc,tmp);
 504
 505         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
 506                 sal_use_session_timers(lc->sal,200);
 507         }
 508
 509         sal_use_rport(lc->sal,lp_config_get_int(lc->config,"sip","use_rport",1));
 510         sal_use_101(lc->sal,lp_config_get_int(lc->config,"sip","use_101",1));
 511         sal_reuse_authorization(lc->sal, lp_config_get_int(lc->config,"sip","reuse_authorization",0));
 512         sal_expire_old_registration_contacts(lc->sal,lp_config_get_int(lc->config,"sip","expire_old_registration_contacts",0));
 513
 514         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",0);
 515         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
 516
 517         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
 518         if (ipv6==-1){
 519                 ipv6=0;
 520         }
 521         linphone_core_enable_ipv6(lc,ipv6);
 522         memset(&tr,0,sizeof(tr));
 523
 524         tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",0);
 525         tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
 526         tr.tls_port=lp_config_get_int(lc->config,"sip","sip_tls_port",0);
 527
 528         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)==1)
 529                 random_port=(0xDFFF&random())+1024;
 530         else random_port=0;
 531
 532         if (tr.udp_port==0 && tr.tcp_port==0 && tr.tls_port==0){
 533                 tr.udp_port=5060;
 534         }
 535
 536         if (tr.udp_port>0 && random_port){
 537                 tr.udp_port=random_port;
 538                 tr.tls_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 539         }else if (tr.tcp_port>0 && random_port){
 540                 tr.tcp_port=random_port;
 541                 tr.tls_port=tr.udp_port=0; /*make sure only one transport is active at a time*/
 542         }else if (tr.tls_port>0 && random_port){
 543                 tr.tls_port=random_port;
 544                 tr.udp_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 545         }
 546
 547 #ifdef __linux
 548         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", "/etc/ssl/certs"));
 549 #else
 550         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", ROOT_CA_FILE));
 551 #endif
 552         linphone_core_verify_server_certificates(lc,lp_config_get_int(lc->config,"sip","verify_server_certs",TRUE));
 553         /*start listening on ports*/
 554         linphone_core_set_sip_transports(lc,&tr);
 555
 556         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
 557         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
 558                 const char *hostname=NULL;
 559                 const char *username=NULL;
 560 #ifdef HAVE_GETENV
 561                 hostname=getenv("HOST");
 562                 username=getenv("USER");
 563                 if (hostname==NULL) hostname=getenv("HOSTNAME");
 564 #endif /*HAVE_GETENV*/
 565                 if (hostname==NULL)
 566                         hostname="unknown-host";
 567                 if (username==NULL){
 568                         username="toto";
 569                 }
 570                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
 571                 linphone_core_set_primary_contact(lc,contact);
 572                 ms_free(contact);
 573         }
 574
 575         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
 576         linphone_core_set_guess_hostname(lc,tmp);
 577
 578
 579         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",30);
 580         linphone_core_set_inc_timeout(lc,tmp);
 581
 582         /* get proxies config */
 583         for(i=0;; i++){
 584                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 585                 if (cfg!=NULL){
 586                         linphone_core_add_proxy_config(lc,cfg);
 587                 }else{
 588                         break;
 589                 }
 590         }
 591         /* get the default proxy */
 592         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 593         linphone_core_set_default_proxy_index(lc,tmp);
 594
 595         /* read authentication information */
 596         for(i=0;; i++){
 597                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 598                 if (ai!=NULL){
 599                         linphone_core_add_auth_info(lc,ai);
 600                         linphone_auth_info_destroy(ai);
 601                 }else{
 602                         break;
 603                 }
 604         }
 605         /*this is to filter out unsupported encryption schemes*/
 606         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 607
 608         /*for tuning or test*/
 609         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 610         lc->sip_conf.register_only_when_network_is_up=
 611                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 612         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 613         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
 614         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
 615         sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
 616         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
 617         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
 618         sal_set_dscp(lc->sal,linphone_core_get_sip_dscp(lc));
 619 }
 620
 621 static void rtp_config_read(LinphoneCore *lc)
 622 {
 623         int port;
 624         int jitt_comp;
 625         int nortp_timeout;
 626         bool_t rtp_no_xmit_on_audio_mute;
 627         bool_t adaptive_jitt_comp_enabled;
 628
 629         port=lp_config_get_int(lc->config,"rtp","audio_rtp_port",7078);
 630         linphone_core_set_audio_port(lc,port);
 631
 632         port=lp_config_get_int(lc->config,"rtp","video_rtp_port",9078);
 633         if (port==0) port=9078;
 634         linphone_core_set_video_port(lc,port);
 635
 636         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 637         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 638         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 639         if (jitt_comp==0) jitt_comp=60;
 640         linphone_core_set_video_jittcomp(lc,jitt_comp);
 641         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 642         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 643         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
 644         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
 645         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
 646         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 647         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
 648         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 649 }
 650
 651 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 652         PayloadType *candidate=NULL;
 653         int i;
 654         PayloadType *it;
 655         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 656                 it=rtp_profile_get_payload(prof,i);
 657                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 658                         && (clock_rate==it->clock_rate || clock_rate<=0)
 659                         && (channels==it->channels || channels<=0) ){
 660                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 661                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 662                                 /*exact match*/
 663                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 664                                 return it;
 665                         }else {
 666                                 if (candidate){
 667                                         if (it->recv_fmtp==NULL) candidate=it;
 668                                 }else candidate=it;
 669                         }
 670                 }
 671         }
 672         if (candidate && recv_fmtp){
 673                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 674         }
 675         return candidate;
 676 }
 677
 678 static bool_t get_codec(LpConfig *config, const char* type, int index, PayloadType **ret){
 679         char codeckey[50];
 680         const char *mime,*fmtp;
 681         int rate,channels,enabled;
 682         PayloadType *pt;
 683
 684         *ret=NULL;
 685         snprintf(codeckey,50,"%s_%i",type,index);
 686         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 687         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 688
 689         rate=lp_config_get_int(config,codeckey,"rate",8000);
 690         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 691         channels=lp_config_get_int(config,codeckey,"channels",0);
 692         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 693         pt=find_payload(&av_profile,mime,rate,channels,fmtp);
 694         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 695         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 696         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 697                         mime,rate,fmtp ? fmtp : "");
 698         *ret=pt;
 699         return TRUE;
 700 }
 701
 702 #define RANK_END 10000
 703 static const char *codec_pref_order[]={
 704         "SILK",
 705         "speex",
 706         "iLBC",
 707         "amr",
 708         "gsm",
 709         "pcmu",
 710         "pcma",
 711         "VP8",
 712         "H264",
 713         "MP4V-ES",
 714         "H263-1998",
 715         NULL,
 716 };
 717
 718 static int find_codec_rank(const char *mime){
 719         int i;
 720         for(i=0;codec_pref_order[i]!=NULL;++i){
 721                 if (strcasecmp(codec_pref_order[i],mime)==0)
 722                         return i;
 723         }
 724         return RANK_END;
 725 }
 726
 727 static int codec_compare(const PayloadType *a, const PayloadType *b){
 728         int ra,rb;
 729         ra=find_codec_rank(a->mime_type);
 730         rb=find_codec_rank(b->mime_type);
 731         if (ra>rb) return 1;
 732         if (ra<rb) return -1;
 733         return 0;
 734 }
 735
 736 static MSList *add_missing_codecs(SalStreamType mtype, MSList *l){
 737         int i;
 738         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 739                 PayloadType *pt=rtp_profile_get_payload(&av_profile,i);
 740                 if (pt){
 741                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 742                                 pt=NULL;
 743                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 744                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 745                                 pt=NULL;
 746                         }
 747                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 748                                 if (ms_list_find(l,pt)==NULL){
 749                                         /*unranked codecs are disabled by default*/
 750                                         if (find_codec_rank(pt->mime_type)!=RANK_END){
 751                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 752                                         }
 753                                         ms_message("Adding new codec %s/%i with fmtp %s",
 754                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 755                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 756                                 }
 757                         }
 758                 }
 759         }
 760         return l;
 761 }
 762
 763 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 764         MSList *elem;
 765         for (elem=l;elem!=NULL;elem=elem->next){
 766                 PayloadType *ept=(PayloadType*)elem->data;
 767                 if (pt==ept)
 768                         return l;
 769         }
 770         l=ms_list_append(l,pt);
 771         return l;
 772 }
 773
 774 static void codecs_config_read(LinphoneCore *lc)
 775 {
 776         int i;
 777         PayloadType *pt;
 778         MSList *audio_codecs=NULL;
 779         MSList *video_codecs=NULL;
 780         for (i=0;get_codec(lc->config,"audio_codec",i,&pt);i++){
 781                 if (pt){
 782                         if (!ms_filter_codec_supported(pt->mime_type)){
 783                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 784                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 785                 }
 786         }
 787         audio_codecs=add_missing_codecs(SalAudio,audio_codecs);
 788         for (i=0;get_codec(lc->config,"video_codec",i,&pt);i++){
 789                 if (pt){
 790                         if (!ms_filter_codec_supported(pt->mime_type)){
 791                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 792                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 793                 }
 794         }
 795         video_codecs=add_missing_codecs(SalVideo,video_codecs);
 796         linphone_core_set_audio_codecs(lc,audio_codecs);
 797         linphone_core_set_video_codecs(lc,video_codecs);
 798         linphone_core_update_allocated_audio_bandwidth(lc);
 799 }
 800
 801 static void build_video_devices_table(LinphoneCore *lc){
 802         const MSList *elem;
 803         int i;
 804         int ndev;
 805         const char **devices;
 806         if (lc->video_conf.cams)
 807                 ms_free(lc->video_conf.cams);
 808         /* retrieve all video devices */
 809         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 810         ndev=ms_list_size(elem);
 811         devices=ms_malloc((ndev+1)*sizeof(const char *));
 812         for (i=0;elem!=NULL;elem=elem->next,i++){
 813                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 814         }
 815         devices[ndev]=NULL;
 816         lc->video_conf.cams=devices;
 817 }
 818
 819 static void video_config_read(LinphoneCore *lc){
 820 #ifdef VIDEO_ENABLED
 821         int capture, display, self_view;
 822 #endif
 823         const char *str;
 824 #ifdef VIDEO_ENABLED
 825         LinphoneVideoPolicy vpol;
 826 #endif
 827         build_video_devices_table(lc);
 828
 829         str=lp_config_get_string(lc->config,"video","device",NULL);
 830         if (str && str[0]==0) str=NULL;
 831         linphone_core_set_video_device(lc,str);
 832
 833         linphone_core_set_preferred_video_size_by_name(lc,
 834                 lp_config_get_string(lc->config,"video","size","cif"));
 835
 836 #ifdef VIDEO_ENABLED
 837         capture=lp_config_get_int(lc->config,"video","capture",1);
 838         display=lp_config_get_int(lc->config,"video","display",1);
 839         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 840         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 841         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 842         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 843         if(lc->video_conf.displaytype)
 844                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 845
 846         linphone_core_enable_video(lc,capture,display);
 847         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 848         linphone_core_enable_self_view(lc,self_view);
 849         linphone_core_set_video_policy(lc,&vpol);
 850 #endif
 851 }
 852
 853 static void ui_config_read(LinphoneCore *lc)
 854 {
 855         LinphoneFriend *lf;
 856         int i;
 857         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 858                 linphone_core_add_friend(lc,lf);
 859         }
 860         call_logs_read_from_config_file(lc);
 861 }
 862
 863 /*
 864 static void autoreplier_config_init(LinphoneCore *lc)
 865 {
 866         autoreplier_config_t *config=&lc->autoreplier_conf;
 867         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 868         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 869         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 870         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 871         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 872         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 873 }
 874 */
 875
 876 bool_t linphone_core_tunnel_available(void){
 877 #ifdef TUNNEL_ENABLED
 878         return TRUE;
 879 #else
 880         return FALSE;
 881 #endif
 882 }
 883
 884 /**
 885  * Enable adaptive rate control (experimental feature, audio-only).
 886  *
 887  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
 888  * control the output bitrate of the encoders, so that we can adapt to the network conditions and
 889  * available bandwidth.
 890 **/
 891 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
 892         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
 893 }
 894
 895 /**
 896  * Returns whether adaptive rate control is enabled.
 897  *
 898  * See linphone_core_enable_adaptive_rate_control().
 899 **/
 900 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
 901         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
 902 }
 903
 904 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
 905         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
 906 }
 907
 908 /**
 909  * Sets maximum available download bandwidth
 910  *
 911  * @ingroup media_parameters
 912  *
 913  * This is IP bandwidth, in kbit/s.
 914  * This information is used signaled to other parties during
 915  * calls (within SDP messages) so that the remote end can have
 916  * sufficient knowledge to properly configure its audio & video
 917  * codec output bitrate to not overflow available bandwidth.
 918  *
 919  * @param lc the LinphoneCore object
 920  * @param bw the bandwidth in kbits/s, 0 for infinite
 921  */
 922 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
 923         lc->net_conf.download_bw=bw;
 924         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
 925 }
 926
 927 /**
 928  * Sets maximum available upload bandwidth
 929  *
 930  * @ingroup media_parameters
 931  *
 932  * This is IP bandwidth, in kbit/s.
 933  * This information is used by liblinphone together with remote
 934  * side available bandwidth signaled in SDP messages to properly
 935  * configure audio & video codec's output bitrate.
 936  *
 937  * @param lc the LinphoneCore object
 938  * @param bw the bandwidth in kbits/s, 0 for infinite
 939  */
 940 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
 941         lc->net_conf.upload_bw=bw;
 942         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
 943 }
 944
 945 /**
 946  * Retrieve the maximum available download bandwidth.
 947  *
 948  * @ingroup media_parameters
 949  *
 950  * This value was set by linphone_core_set_download_bandwidth().
 951  *
 952 **/
 953 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
 954         return lc->net_conf.download_bw;
 955 }
 956
 957 /**
 958  * Retrieve the maximum available upload bandwidth.
 959  *
 960  * @ingroup media_parameters
 961  *
 962  * This value was set by linphone_core_set_upload_bandwidth().
 963  *
 964 **/
 965 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
 966         return lc->net_conf.upload_bw;
 967 }
 968 /**
 969  * Set audio packetization time linphone expects to receive from peer
 970  */
 971 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
 972         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
 973 }
 974
 975 /**
 976  * Get audio packetization time linphone expects to receive from peer
 977  */
 978 int linphone_core_get_download_ptime(LinphoneCore *lc) {
 979         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
 980 }
 981
 982 /**
 983  * Set audio packetization time linphone will send (in absence of requirement from peer)
 984  * A value of 0 stands for the current codec default packetization time.
 985  *
 986 **/
 987 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
 988         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
 989 }
 990
 991 /**
 992  * Set audio packetization time linphone will send (in absence of requirement from peer)
 993  * A value of 0 stands for the current codec default packetization time.
 994  *
 995 **/
 996 int linphone_core_get_upload_ptime(LinphoneCore *lc){
 997         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
 998 }
 999
1000
1001
1002 /**
1003  * Returns liblinphone's version as a string.
1004  *
1005  * @ingroup misc
1006  *
1007 **/
1008 const char * linphone_core_get_version(void){
1009         return liblinphone_version;
1010 }
1011
1012 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1013         PayloadType *pt;
1014         pt=payload_type_clone(const_pt);
1015         if (number==-1){
1016                 /*look for a free number */
1017                 MSList *elem;
1018                 int i;
1019                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1020                         bool_t already_assigned=FALSE;
1021                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1022                                 PayloadType *it=(PayloadType*)elem->data;
1023                                 if (payload_type_get_number(it)==i){
1024                                         already_assigned=TRUE;
1025                                         break;
1026                                 }
1027                         }
1028                         if (!already_assigned){
1029                                 number=i;
1030                                 lc->dyn_pt=i+1;
1031                                 break;
1032                         }
1033                 }
1034                 if (number==-1){
1035                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1036                 }
1037         }
1038         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1039         payload_type_set_number(pt,number);
1040         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1041         rtp_profile_set_payload(&av_profile,number,pt);
1042         lc->payload_types=ms_list_append(lc->payload_types,pt);
1043 }
1044
1045 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1046         RtpProfile *prof=&av_profile;
1047         int i;
1048         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1049                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1050                 if (pt){
1051                         if (payload_type_get_number(pt)!=i){
1052                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1053                         }
1054                 }
1055         }
1056 }
1057
1058 static void linphone_core_free_payload_types(LinphoneCore *lc){
1059         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1060         ms_list_free(lc->payload_types);
1061         lc->payload_types=NULL;
1062 }
1063
1064 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1065         lc->state=gstate;
1066         if (lc->vtable.global_state_changed){
1067                 lc->vtable.global_state_changed(lc,gstate,message);
1068         }
1069 }
1070 static void misc_config_read (LinphoneCore *lc) {
1071         LpConfig *config=lc->config;
1072     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1073     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1074 }
1075
1076
1077
1078
1079 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1080     const char *factory_config_path, void * userdata)
1081 {
1082         memset (lc, 0, sizeof (LinphoneCore));
1083         lc->data=userdata;
1084         lc->ringstream_autorelease=TRUE;
1085
1086         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1087
1088         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1089         ortp_init();
1090         lc->dyn_pt=96;
1091         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1092         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1093         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1094         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1095         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1096         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1097         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1098         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1099
1100 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1101         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1102          - to workaround potential packet losses
1103          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1104          */
1105         _linphone_core_configure_resolver();
1106 #endif
1107
1108 #ifdef ENABLE_NONSTANDARD_GSM
1109         {
1110                 PayloadType *pt;
1111                 pt=payload_type_clone(&payload_type_gsm);
1112                 pt->clock_rate=11025;
1113                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1114                 pt->clock_rate=22050;
1115                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1116                 payload_type_destroy(pt);
1117         }
1118 #endif
1119
1120 #ifdef VIDEO_ENABLED
1121         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1122         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1123         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1124         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1125         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1126         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1127         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1128         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1129         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1130 #endif
1131
1132         /*add all payload type for which we don't care about the number */
1133         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1134         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1135         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1136         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1137         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1138         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1139         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1140         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1141         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1142         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1143         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1144         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1145         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1146         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1147         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1148         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1149         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1150         linphone_core_handle_static_payloads(lc);
1151
1152         ms_init();
1153         /* create a mediastreamer2 event queue and set it as global */
1154         /* This allows to run event's callback in linphone_core_iterate() */
1155         lc->msevq=ms_event_queue_new();
1156         ms_set_global_event_queue(lc->msevq);
1157
1158         lc->config=lp_config_new(config_path);
1159         if (factory_config_path)
1160                 lp_config_read_file(lc->config,factory_config_path);
1161
1162         lc->sal=sal_init();
1163         sal_set_user_pointer(lc->sal,lc);
1164         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1165
1166         sip_setup_register_all();
1167         sound_config_read(lc);
1168         net_config_read(lc);
1169         rtp_config_read(lc);
1170         codecs_config_read(lc);
1171         sip_config_read(lc); /* this will start eXosip*/
1172         video_config_read(lc);
1173         //autoreplier_config_init(&lc->autoreplier_conf);
1174         lc->presence_mode=LinphoneStatusOnline;
1175         misc_config_read(lc);
1176         ui_config_read(lc);
1177 #ifdef TUNNEL_ENABLED
1178         lc->tunnel=linphone_core_tunnel_new(lc);
1179         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1180 #endif
1181         if (lc->vtable.display_status)
1182                 lc->vtable.display_status(lc,_("Ready"));
1183         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1184         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1185 }
1186
1187 /**
1188  * Instanciates a LinphoneCore object.
1189  * @ingroup initializing
1190  *
1191  * The LinphoneCore object is the primary handle for doing all phone actions.
1192  * It should be unique within your application.
1193  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1194  * @param config_path a path to a config file. If it does not exists it will be created.
1195  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1196  *             become persistent over the life of the LinphoneCore object.
1197  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1198  * @param factory_config_path a path to a read-only config file that can be used to
1199  *        to store hard-coded preference such as proxy settings or internal preferences.
1200  *        The settings in this factory file always override the one in the normal config file.
1201  *        It is OPTIONAL, use NULL if unneeded.
1202  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1203  *        callbacks) using linphone_core_get_user_data().
1204  *
1205 **/
1206 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1207                                                 const char *config_path, const char *factory_config_path, void * userdata)
1208 {
1209         LinphoneCore *core=ms_new(LinphoneCore,1);
1210         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1211         return core;
1212 }
1213
1214 /**
1215  * Returns the list of available audio codecs.
1216  *
1217  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1218  * structure holding the codec information.
1219  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1220  * (such as the order of codecs).
1221 **/
1222 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1223 {
1224         return lc->codecs_conf.audio_codecs;
1225 }
1226
1227 /**
1228  * Returns the list of available video codecs.
1229  *
1230  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1231  * structure holding the codec information.
1232  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1233  * (such as the order of codecs).
1234 **/
1235 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1236 {
1237         return lc->codecs_conf.video_codecs;
1238 }
1239
1240 /**
1241  * Sets the local "from" identity.
1242  *
1243  * @ingroup proxies
1244  * This data is used in absence of any proxy configuration or when no
1245  * default proxy configuration is set. See LinphoneProxyConfig
1246 **/
1247 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1248 {
1249         LinphoneAddress *ctt;
1250
1251         if ((ctt=linphone_address_new(contact))==0) {
1252                 ms_error("Bad contact url: %s",contact);
1253                 return -1;
1254         }
1255         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1256         lc->sip_conf.contact=ms_strdup(contact);
1257         if (lc->sip_conf.guessed_contact!=NULL){
1258                 ms_free(lc->sip_conf.guessed_contact);
1259                 lc->sip_conf.guessed_contact=NULL;
1260         }
1261         linphone_address_destroy(ctt);
1262         return 0;
1263 }
1264
1265
1266 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1267 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1268         const char *ip;
1269         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1270             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1271                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1272                 return;
1273         }
1274         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1275                 return;
1276         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1277         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1278 }
1279
1280 static void update_primary_contact(LinphoneCore *lc){
1281         char *guessed=NULL;
1282         char tmp[LINPHONE_IPADDR_SIZE];
1283
1284         LinphoneAddress *url;
1285         if (lc->sip_conf.guessed_contact!=NULL){
1286                 ms_free(lc->sip_conf.guessed_contact);
1287                 lc->sip_conf.guessed_contact=NULL;
1288         }
1289         url=linphone_address_new(lc->sip_conf.contact);
1290         if (!url){
1291                 ms_error("Could not parse identity contact !");
1292                 url=linphone_address_new("sip:unknown@unkwownhost");
1293         }
1294         linphone_core_get_local_ip(lc, NULL, tmp);
1295         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1296                 ms_warning("Local loopback network only !");
1297                 lc->sip_conf.loopback_only=TRUE;
1298         }else lc->sip_conf.loopback_only=FALSE;
1299         linphone_address_set_domain(url,tmp);
1300         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1301         guessed=linphone_address_as_string(url);
1302         lc->sip_conf.guessed_contact=guessed;
1303         linphone_address_destroy(url);
1304 }
1305
1306 /**
1307  * Returns the default identity when no proxy configuration is used.
1308  *
1309  * @ingroup proxies
1310 **/
1311 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1312         char *identity;
1313
1314         if (lc->sip_conf.guess_hostname){
1315                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1316                         update_primary_contact(lc);
1317                 }
1318                 identity=lc->sip_conf.guessed_contact;
1319         }else{
1320                 identity=lc->sip_conf.contact;
1321         }
1322         return identity;
1323 }
1324
1325 /**
1326  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1327  *
1328  * @ingroup proxies
1329 **/
1330 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1331         lc->sip_conf.guess_hostname=val;
1332 }
1333
1334 /**
1335  * Returns TRUE if hostname part of primary contact is guessed automatically.
1336  *
1337  * @ingroup proxies
1338 **/
1339 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1340         return lc->sip_conf.guess_hostname;
1341 }
1342
1343 /**
1344  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1345  * instead of const char*
1346  *
1347  * @ingroup proxies
1348 **/
1349 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1350         return linphone_address_new(linphone_core_get_primary_contact(lc));
1351 }
1352
1353 /**
1354  * Sets the list of audio codecs.
1355  *
1356  * @ingroup media_parameters
1357  * The list is taken by the LinphoneCore thus the application should not free it.
1358  * This list is made of struct PayloadType describing the codec parameters.
1359 **/
1360 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1361 {
1362         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1363         lc->codecs_conf.audio_codecs=codecs;
1364         _linphone_core_codec_config_write(lc);
1365         return 0;
1366 }
1367
1368 /**
1369  * Sets the list of video codecs.
1370  *
1371  * @ingroup media_parameters
1372  * The list is taken by the LinphoneCore thus the application should not free it.
1373  * This list is made of struct PayloadType describing the codec parameters.
1374 **/
1375 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1376 {
1377         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1378         lc->codecs_conf.video_codecs=codecs;
1379         _linphone_core_codec_config_write(lc);
1380         return 0;
1381 }
1382
1383 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1384 {
1385         return lc->friends;
1386 }
1387
1388 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1389 {
1390         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1391 }
1392
1393 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1394 {
1395         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1396 }
1397
1398 /**
1399  * Returns the nominal audio jitter buffer size in milliseconds.
1400  *
1401  * @ingroup media_parameters
1402 **/
1403 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1404 {
1405         return lc->rtp_conf.audio_jitt_comp;
1406 }
1407
1408 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1409 {
1410         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1411 }
1412
1413 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1414 {
1415         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1416 }
1417
1418 /**
1419  * Returns the nominal video jitter buffer size in milliseconds.
1420  *
1421  * @ingroup media_parameters
1422 **/
1423 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1424 {
1425         return lc->rtp_conf.video_jitt_comp;
1426 }
1427
1428 /**
1429  * Returns the UDP port used for audio streaming.
1430  *
1431  * @ingroup network_parameters
1432 **/
1433 int linphone_core_get_audio_port(const LinphoneCore *lc)
1434 {
1435         return lc->rtp_conf.audio_rtp_port;
1436 }
1437
1438 /**
1439  * Returns the UDP port used for video streaming.
1440  *
1441  * @ingroup network_parameters
1442 **/
1443 int linphone_core_get_video_port(const LinphoneCore *lc){
1444         return lc->rtp_conf.video_rtp_port;
1445 }
1446
1447
1448 /**
1449  * Returns the value in seconds of the no-rtp timeout.
1450  *
1451  * @ingroup media_parameters
1452  * When no RTP or RTCP packets have been received for a while
1453  * LinphoneCore will consider the call is broken (remote end crashed or
1454  * disconnected from the network), and thus will terminate the call.
1455  * The no-rtp timeout is the duration above which the call is considered broken.
1456 **/
1457 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1458         return lc->rtp_conf.nortp_timeout;
1459 }
1460
1461 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1462         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1463 }
1464
1465 /**
1466  * Sets the nominal audio jitter buffer size in milliseconds.
1467  *
1468  * @ingroup media_parameters
1469 **/
1470 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1471 {
1472         lc->rtp_conf.audio_jitt_comp=value;
1473 }
1474
1475 /**
1476  * Sets the nominal video jitter buffer size in milliseconds.
1477  *
1478  * @ingroup media_parameters
1479 **/
1480 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1481 {
1482         lc->rtp_conf.video_jitt_comp=value;
1483 }
1484
1485 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1486         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1487 }
1488
1489 /**
1490  * Sets the UDP port used for audio streaming.
1491  *
1492  * @ingroup network_parameters
1493 **/
1494 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1495 {
1496         lc->rtp_conf.audio_rtp_port=port;
1497 }
1498
1499 /**
1500  * Sets the UDP port used for video streaming.
1501  *
1502  * @ingroup network_parameters
1503 **/
1504 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1505         lc->rtp_conf.video_rtp_port=port;
1506 }
1507
1508 /**
1509  * Sets the no-rtp timeout value in seconds.
1510  *
1511  * @ingroup media_parameters
1512  * See linphone_core_get_nortp_timeout() for details.
1513 **/
1514 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1515         lc->rtp_conf.nortp_timeout=nortp_timeout;
1516 }
1517
1518 /**
1519  * Indicates whether SIP INFO is used for sending digits.
1520  *
1521  * @ingroup media_parameters
1522 **/
1523 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1524 {
1525         return lc->sip_conf.use_info;
1526 }
1527
1528 /**
1529  * Sets whether SIP INFO is to be used for sending digits.
1530  *
1531  * @ingroup media_parameters
1532 **/
1533 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1534 {
1535         lc->sip_conf.use_info=use_info;
1536 }
1537
1538 /**
1539  * Indicates whether RFC2833 is used for sending digits.
1540  *
1541  * @ingroup media_parameters
1542 **/
1543 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1544 {
1545         return lc->sip_conf.use_rfc2833;
1546 }
1547
1548 /**
1549  * Sets whether RFC2833 is to be used for sending digits.
1550  *
1551  * @ingroup media_parameters
1552 **/
1553 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1554 {
1555         lc->sip_conf.use_rfc2833=use_rfc2833;
1556 }
1557
1558 /**
1559  * Returns the UDP port used by SIP.
1560  *
1561  * Deprecated: use linphone_core_get_sip_transports() instead.
1562  * @ingroup network_parameters
1563 **/
1564 int linphone_core_get_sip_port(LinphoneCore *lc)
1565 {
1566         LCSipTransports *tr=&lc->sip_conf.transports;
1567         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1568 }
1569
1570 static char _ua_name[64]="Linphone";
1571 static char _ua_version[64]=LINPHONE_VERSION;
1572
1573 #ifdef HAVE_EXOSIP_GET_VERSION
1574 extern const char *eXosip_get_version();
1575 #endif
1576
1577 static void apply_user_agent(LinphoneCore *lc){
1578         char ua_string[256];
1579         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1580 #ifdef HAVE_EXOSIP_GET_VERSION
1581                  eXosip_get_version()
1582 #else
1583                  "unknown"
1584 #endif
1585         );
1586         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1587 }
1588
1589 /**
1590  * Sets the user agent string used in SIP messages.
1591  *
1592  * @ingroup misc
1593 **/
1594 void linphone_core_set_user_agent(const char *name, const char *ver){
1595         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1596         strncpy(_ua_version,ver,sizeof(_ua_version));
1597 }
1598
1599 const char *linphone_core_get_user_agent_name(void){
1600         return _ua_name;
1601 }
1602
1603 const char *linphone_core_get_user_agent_version(void){
1604         return _ua_version;
1605 }
1606
1607 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1608         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1609         ms_warning("%s",msg);
1610         if (lc->vtable.display_warning)
1611                 lc->vtable.display_warning(lc,msg);
1612         ms_free(msg);
1613 }
1614
1615 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1616         return
1617                 tr2->udp_port==tr1->udp_port &&
1618                 tr2->tcp_port==tr1->tcp_port &&
1619                 tr2->dtls_port==tr1->dtls_port &&
1620                 tr2->tls_port==tr1->tls_port;
1621 }
1622
1623 static int apply_transports(LinphoneCore *lc){
1624         Sal *sal=lc->sal;
1625         const char *anyaddr;
1626         LCSipTransports *tr=&lc->sip_conf.transports;
1627
1628         /*first of all invalidate all current registrations so that we can register again with new transports*/
1629         __linphone_core_invalidate_registers(lc);
1630
1631         if (lc->sip_conf.ipv6_enabled)
1632                 anyaddr="::0";
1633         else
1634                 anyaddr="0.0.0.0";
1635
1636         sal_unlisten_ports(sal);
1637         if (tr->udp_port>0){
1638                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1639                         transport_error(lc,"udp",tr->udp_port);
1640                         return -1;
1641                 }
1642         }
1643         if (tr->tcp_port>0){
1644                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1645                         transport_error(lc,"tcp",tr->tcp_port);
1646                 }
1647         }
1648         if (tr->tls_port>0){
1649                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1650                         transport_error(lc,"tls",tr->tls_port);
1651                 }
1652         }
1653         apply_user_agent(lc);
1654         return 0;
1655 }
1656
1657 /**
1658  * Sets the ports to be used for each of transport (UDP or TCP)
1659  *
1660  * A zero value port for a given transport means the transport
1661  * is not used.
1662  *
1663  * @ingroup network_parameters
1664 **/
1665 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1666
1667         if (transports_unchanged(tr,&lc->sip_conf.transports))
1668                 return 0;
1669         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1670
1671         if (linphone_core_ready(lc)){
1672                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1673                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1674                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1675         }
1676
1677         if (lc->sal==NULL) return 0;
1678         return apply_transports(lc);
1679 }
1680
1681 /**
1682  * Retrieves the ports used for each transport (udp, tcp).
1683  * A zero value port for a given transport means the transport
1684  * is not used.
1685  * @ingroup network_parameters
1686 **/
1687 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1688         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1689         return 0;
1690 }
1691
1692 /**
1693  * Sets the UDP port to be used by SIP.
1694  *
1695  * Deprecated: use linphone_core_set_sip_transports() instead.
1696  * @ingroup network_parameters
1697 **/
1698 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1699 {
1700         LCSipTransports tr;
1701         memset(&tr,0,sizeof(tr));
1702         tr.udp_port=port;
1703         linphone_core_set_sip_transports (lc,&tr);
1704 }
1705
1706 /**
1707  * Returns TRUE if IPv6 is enabled.
1708  *
1709  * @ingroup network_parameters
1710  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1711 **/
1712 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1713         return lc->sip_conf.ipv6_enabled;
1714 }
1715
1716 /**
1717  * Turns IPv6 support on or off.
1718  *
1719  * @ingroup network_parameters
1720  *
1721  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1722  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1723  * By default IPv6 support is off.
1724 **/
1725 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1726         if (lc->sip_conf.ipv6_enabled!=val){
1727                 lc->sip_conf.ipv6_enabled=val;
1728                 if (lc->sal){
1729                         /* we need to restart eXosip */
1730                         apply_transports(lc);
1731                 }
1732         }
1733 }
1734
1735
1736 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1737         static time_t last_check=0;
1738         static bool_t last_status=FALSE;
1739         char result[LINPHONE_IPADDR_SIZE];
1740         bool_t new_status=last_status;
1741
1742         /* only do the network up checking every five seconds */
1743         if (last_check==0 || (curtime-last_check)>=5){
1744                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1745                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1746                         new_status=TRUE;
1747                 }else new_status=FALSE;
1748                 last_check=curtime;
1749                 if (new_status!=last_status) {
1750                         if (new_status){
1751                                 ms_message("New local ip address is %s",result);
1752                         }
1753                         set_network_reachable(lc,new_status, curtime);
1754                         last_status=new_status;
1755                 }
1756         }
1757 }
1758
1759 static void proxy_update(LinphoneCore *lc){
1760         MSList *elem,*next;
1761         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1762         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1763                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1764                 next=elem->next;
1765                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1766                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1767                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1768                         linphone_proxy_config_destroy(cfg);
1769                 }
1770         }
1771 }
1772
1773 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1774         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1775         if (lf!=NULL){
1776                 lf->info=info;
1777                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1778                 if (lc->vtable.buddy_info_updated)
1779                         lc->vtable.buddy_info_updated(lc,lf);
1780         }else{
1781                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1782         }
1783 }
1784
1785 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1786         MSList *elem;
1787         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1788         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1789                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1790                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1791                         if (req->results!=NULL){
1792                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1793                                 ms_list_free(req->results);
1794                                 req->results=NULL;
1795                                 assign_buddy_info(lc,i);
1796                         }
1797                         sip_setup_context_buddy_lookup_free(ctx,req);
1798                         elem->data=NULL;
1799                 }
1800         }
1801         /*purge completed requests */
1802         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1803                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1804         }
1805 }
1806
1807 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1808         const MSList *elem;
1809         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1810         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1811                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1812                 if (lf->info==NULL){
1813                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1814                                 if (linphone_address_get_username(lf->uri)!=NULL){
1815                                         BuddyLookupRequest *req;
1816                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1817                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1818                                         buddy_lookup_request_set_key(req,tmp);
1819                                         buddy_lookup_request_set_max_results(req,1);
1820                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1821                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
1822                                         ms_free(tmp);
1823                                 }
1824                         }
1825                 }
1826         }
1827 }
1828
1829 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
1830         LinphoneProxyConfig *cfg=NULL;
1831         linphone_core_get_default_proxy(lc,&cfg);
1832         if (cfg){
1833                 if (lc->bl_refresh){
1834                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1835                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
1836                                 linphone_core_grab_buddy_infos(lc,cfg);
1837                                 lc->bl_refresh=FALSE;
1838                         }
1839                 }
1840                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
1841         }
1842 }
1843
1844 /**
1845  * Main loop function. It is crucial that your application call it periodically.
1846  *
1847  * @ingroup initializing
1848  * linphone_core_iterate() performs various backgrounds tasks:
1849  * - receiving of SIP messages
1850  * - handles timers and timeout
1851  * - performs registration to proxies
1852  * - authentication retries
1853  * The application MUST call this function periodically, in its main loop.
1854  * Be careful that this function must be called from the same thread as
1855  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
1856  * serialized with a mutex.
1857 **/
1858 void linphone_core_iterate(LinphoneCore *lc){
1859         MSList *calls;
1860         LinphoneCall *call;
1861         time_t curtime=time(NULL);
1862         int elapsed;
1863         bool_t one_second_elapsed=FALSE;
1864
1865         if (curtime-lc->prevtime>=1){
1866                 lc->prevtime=curtime;
1867                 one_second_elapsed=TRUE;
1868         }
1869
1870         if (lc->ecc!=NULL){
1871                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
1872                 if (ecs!=LinphoneEcCalibratorInProgress){
1873                         if (lc->ecc->cb)
1874                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
1875                         if (ecs==LinphoneEcCalibratorDone){
1876                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
1877                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-(len/2),0));
1878                         }
1879                         ec_calibrator_destroy(lc->ecc);
1880                         lc->ecc=NULL;
1881                 }
1882         }
1883
1884         if (lc->preview_finished){
1885                 lc->preview_finished=0;
1886                 ring_stop(lc->ringstream);
1887                 lc->ringstream=NULL;
1888                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
1889         }
1890
1891         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
1892             && (curtime-lc->dmfs_playing_start_time)>5){
1893                 ring_stop(lc->ringstream);
1894                 lc->ringstream=NULL;
1895                 lc->dmfs_playing_start_time=0;
1896         }
1897
1898         sal_iterate(lc->sal);
1899         if (lc->msevq) ms_event_queue_pump(lc->msevq);
1900         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
1901
1902         proxy_update(lc);
1903
1904         //we have to iterate for each call
1905         calls= lc->calls;
1906         while(calls!= NULL){
1907                 call = (LinphoneCall *)calls->data;
1908                  /* get immediately a reference to next one in case the one
1909                  we are going to examine is destroy and removed during
1910                  linphone_core_start_invite() */
1911                 calls=calls->next;
1912                 linphone_call_background_tasks(call,one_second_elapsed);
1913                 if (call->state==LinphoneCallOutgoingInit && (curtime-call->start_time>=2)){
1914                         /*start the call even if the OPTIONS reply did not arrive*/
1915                         if (call->ice_session != NULL) {
1916                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
1917                                                 ,linphone_core_get_stun_server(lc));
1918                                 linphone_call_delete_ice_session(call);
1919                                 linphone_call_stop_media_streams_for_ice_gathering(call);
1920                         }
1921                         linphone_core_start_invite(lc,call);
1922                 }
1923                 if (call->state==LinphoneCallIncomingReceived){
1924                         elapsed=curtime-call->start_time;
1925                         ms_message("incoming call ringing for %i seconds",elapsed);
1926                         if (elapsed>lc->sip_conf.inc_timeout){
1927                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
1928                                 call->log->status=LinphoneCallMissed;
1929                                 call->reason=LinphoneReasonNotAnswered;
1930                                 linphone_core_terminate_call(lc,call);
1931                         }
1932                 }
1933         }
1934
1935         if (linphone_core_video_preview_enabled(lc)){
1936                 if (lc->previewstream==NULL && lc->calls==NULL)
1937                         toggle_video_preview(lc,TRUE);
1938 #ifdef VIDEO_ENABLED
1939                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
1940 #endif
1941         }else{
1942                 if (lc->previewstream!=NULL)
1943                         toggle_video_preview(lc,FALSE);
1944         }
1945
1946         linphone_core_run_hooks(lc);
1947         linphone_core_do_plugin_tasks(lc);
1948
1949         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
1950             (curtime-lc->netup_time)>3){
1951                 linphone_core_send_initial_subscribes(lc);
1952                 lc->initial_subscribes_sent=TRUE;
1953         }
1954
1955         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
1956                 lp_config_sync(lc->config);
1957         }
1958 }
1959
1960 /**
1961  * Interpret a call destination as supplied by the user, and returns a fully qualified
1962  * LinphoneAddress.
1963  *
1964  * A sip address should look like DisplayName <sip:username@domain:port> .
1965  * Basically this function performs the following tasks
1966  * - if a phone number is entered, prepend country prefix of the default proxy
1967  *   configuration, eventually escape the '+' by 00.
1968  * - if no domain part is supplied, append the domain name of the default proxy
1969  * - if no sip: is present, prepend it
1970  *
1971  * The result is a syntaxically correct SIP address.
1972 **/
1973
1974 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
1975         enum_lookup_res_t *enumres=NULL;
1976         char *enum_domain=NULL;
1977         LinphoneProxyConfig *proxy=lc->default_proxy;;
1978         char *tmpurl;
1979         LinphoneAddress *uri;
1980
1981         if (is_enum(url,&enum_domain)){
1982                 if (lc->vtable.display_status!=NULL)
1983                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
1984                 if (enum_lookup(enum_domain,&enumres)<0){
1985                         if (lc->vtable.display_status!=NULL)
1986                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
1987                         ms_free(enum_domain);
1988                         return NULL;
1989                 }
1990                 ms_free(enum_domain);
1991                 tmpurl=enumres->sip_address[0];
1992                 uri=linphone_address_new(tmpurl);
1993                 enum_lookup_res_free(enumres);
1994                 return uri;
1995         }
1996         /* check if we have a "sip:" */
1997         if (strstr(url,"sip:")==NULL){
1998                 /* this doesn't look like a true sip uri */
1999                 if (strchr(url,'@')!=NULL){
2000                         /* seems like sip: is missing !*/
2001                         tmpurl=ms_strdup_printf("sip:%s",url);
2002                         uri=linphone_address_new(tmpurl);
2003                         ms_free(tmpurl);
2004                         if (uri){
2005                                 return uri;
2006                         }
2007                 }
2008
2009                 if (proxy!=NULL){
2010                         /* append the proxy domain suffix */
2011                         const char *identity=linphone_proxy_config_get_identity(proxy);
2012                         char normalized_username[128];
2013                         uri=linphone_address_new(identity);
2014                         if (uri==NULL){
2015                                 return NULL;
2016                         }
2017                         linphone_address_set_display_name(uri,NULL);
2018                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2019                                                                 sizeof(normalized_username));
2020                         linphone_address_set_username(uri,normalized_username);
2021                         return uri;
2022                 }else return NULL;
2023         }
2024         uri=linphone_address_new(url);
2025         if (uri!=NULL){
2026                 return uri;
2027         }
2028         /* else we could not do anything with url given by user, so display an error */
2029         if (lc->vtable.display_warning!=NULL){
2030                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2031         }
2032         return NULL;
2033 }
2034
2035 /**
2036  * Returns the default identity SIP address.
2037  *
2038  * @ingroup proxies
2039  * This is an helper function:
2040  *
2041  * If no default proxy is set, this will return the primary contact (
2042  * see linphone_core_get_primary_contact() ). If a default proxy is set
2043  * it returns the registered identity on the proxy.
2044 **/
2045 const char * linphone_core_get_identity(LinphoneCore *lc){
2046         LinphoneProxyConfig *proxy=NULL;
2047         const char *from;
2048         linphone_core_get_default_proxy(lc,&proxy);
2049         if (proxy!=NULL) {
2050                 from=linphone_proxy_config_get_identity(proxy);
2051         }else from=linphone_core_get_primary_contact(lc);
2052         return from;
2053 }
2054
2055 const char * linphone_core_get_route(LinphoneCore *lc){
2056         LinphoneProxyConfig *proxy=NULL;
2057         const char *route=NULL;
2058         linphone_core_get_default_proxy(lc,&proxy);
2059         if (proxy!=NULL) {
2060                 route=linphone_proxy_config_get_route(proxy);
2061         }
2062         return route;
2063 }
2064
2065 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2066         if (call->refer_pending){
2067                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2068                 LinphoneCall *newcall;
2069                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2070                 cp->referer=call;
2071                 ms_message("Starting new call to refered address %s",call->refer_to);
2072                 call->refer_pending=FALSE;
2073                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2074                 linphone_call_params_destroy(cp);
2075                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2076         }
2077 }
2078
2079 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2080         if (referer->op!=NULL){
2081                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2082         }
2083 }
2084
2085 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2086         const MSList *elem;
2087         LinphoneProxyConfig *found_cfg=NULL;
2088         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2089
2090         /*always prefer the default proxy if it is matching the destination uri*/
2091         if (default_cfg){
2092                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2093                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2094                         return default_cfg;
2095         }
2096
2097         /*otherwise iterate through the other proxy config and return the first matching*/
2098         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2099                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2100                 const char *domain=linphone_proxy_config_get_domain(cfg);
2101                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2102                         found_cfg=cfg;
2103                         break;
2104                 }
2105         }
2106         return found_cfg;
2107 }
2108
2109 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2110         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2111         if (cfg==NULL)
2112                 linphone_core_get_default_proxy (lc,&cfg);
2113         if (cfg!=NULL){
2114                 if (route) *route=linphone_proxy_config_get_route(cfg);
2115                 return linphone_proxy_config_get_identity (cfg);
2116         }
2117         return linphone_core_get_primary_contact (lc);
2118 }
2119
2120 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2121         LinphoneAddress *ctt;
2122         const char *localip=call->localip;
2123
2124         /* first use user's supplied ip address if asked*/
2125         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2126                 ctt=linphone_core_get_primary_contact_parsed(lc);
2127                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2128                         linphone_core_get_nat_address_resolved(lc));
2129         }
2130
2131         /* if already choosed, don't change it */
2132         if (call->op && sal_op_get_contact(call->op)!=NULL){
2133                 return NULL;
2134         }
2135         /* if the ping OPTIONS request succeeded use the contact guessed from the
2136          received, rport*/
2137         if (call->ping_op){
2138                 const char *guessed=sal_op_get_contact(call->ping_op);
2139                 if (guessed){
2140                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2141                         return ms_strdup(guessed);
2142                 }
2143         }
2144
2145         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2146         if (dest_proxy && dest_proxy->op){
2147                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2148                 if (fixed_contact) {
2149                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2150                         return ms_strdup(fixed_contact);
2151                 }
2152         }
2153
2154         ctt=linphone_core_get_primary_contact_parsed(lc);
2155
2156         if (ctt!=NULL){
2157                 char *ret;
2158                 /*otherwise use supllied localip*/
2159                 linphone_address_set_domain(ctt,localip);
2160                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2161                 ret=linphone_address_as_string_uri_only(ctt);
2162                 linphone_address_destroy(ctt);
2163                 ms_message("Contact has been fixed using local ip to %s",ret);
2164                 return ret;
2165         }
2166         return NULL;
2167 }
2168
2169 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2170         bool_t ice_ready = FALSE;
2171         bool_t ping_ready = FALSE;
2172
2173         if (call->ice_session != NULL) {
2174                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2175         } else {
2176                 ice_ready = TRUE;
2177         }
2178         if (call->ping_op != NULL) {
2179                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2180         } else {
2181                 ping_ready = TRUE;
2182         }
2183
2184         if ((ice_ready == TRUE) && (ping_ready == TRUE)) {
2185                 return linphone_core_start_invite(lc, call);
2186         }
2187         return 0;
2188 }
2189
2190 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2191         int err;
2192         char *contact;
2193         char *real_url,*barmsg;
2194         char *from;
2195         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2196
2197         /*try to be best-effort in giving real local or routable contact address */
2198         contact=get_fixed_contact(lc,call,dest_proxy);
2199         if (contact){
2200                 sal_op_set_contact(call->op, contact);
2201                 ms_free(contact);
2202         }
2203         linphone_core_stop_dtmf_stream(lc);
2204         linphone_call_init_media_streams(call);
2205         if (lc->ringstream==NULL)
2206                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2207         call->localdesc=create_local_media_description(lc,call);
2208         if (!lc->sip_conf.sdp_200_ack){
2209                 call->media_pending=TRUE;
2210                 sal_call_set_local_media_description(call->op,call->localdesc);
2211         }
2212         real_url=linphone_address_as_string(call->log->to);
2213         from=linphone_address_as_string(call->log->from);
2214         err=sal_call(call->op,from,real_url);
2215
2216         if (lc->sip_conf.sdp_200_ack){
2217                 call->media_pending=TRUE;
2218                 sal_call_set_local_media_description(call->op,call->localdesc);
2219         }
2220         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2221         if (lc->vtable.display_status!=NULL)
2222                 lc->vtable.display_status(lc,barmsg);
2223         ms_free(barmsg);
2224
2225         if (err<0){
2226                 if (lc->vtable.display_status!=NULL)
2227                         lc->vtable.display_status(lc,_("Could not call"));
2228                 linphone_call_stop_media_streams(call);
2229                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2230         }else {
2231                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2232         }
2233         ms_free(real_url);
2234         ms_free(from);
2235         return err;
2236 }
2237
2238 /**
2239  * Initiates an outgoing call
2240  *
2241  * @ingroup call_control
2242  * @param lc the LinphoneCore object
2243  * @param url the destination of the call (sip address, or phone number).
2244  *
2245  * The application doesn't own a reference to the returned LinphoneCall object.
2246  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2247  *
2248  * @return a LinphoneCall object or NULL in case of failure
2249 **/
2250 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2251         LinphoneCall *call;
2252         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2253         p->has_video &= !!lc->video_policy.automatically_initiate;
2254         call=linphone_core_invite_with_params(lc,url,p);
2255         linphone_call_params_destroy(p);
2256         return call;
2257 }
2258
2259
2260 /**
2261  * Initiates an outgoing call according to supplied call parameters
2262  *
2263  * @ingroup call_control
2264  * @param lc the LinphoneCore object
2265  * @param url the destination of the call (sip address, or phone number).
2266  * @param p call parameters
2267  *
2268  * The application doesn't own a reference to the returned LinphoneCall object.
2269  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2270  *
2271  * @return a LinphoneCall object or NULL in case of failure
2272 **/
2273 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2274         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2275         if (addr){
2276                 LinphoneCall *call;
2277                 call=linphone_core_invite_address_with_params(lc,addr,p);
2278                 linphone_address_destroy(addr);
2279                 return call;
2280         }
2281         return NULL;
2282 }
2283
2284 /**
2285  * Initiates an outgoing call given a destination LinphoneAddress
2286  *
2287  * @ingroup call_control
2288  * @param lc the LinphoneCore object
2289  * @param addr the destination of the call (sip address).
2290  *
2291  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2292  * created by linphone_core_interpret_url().
2293  * The application doesn't own a reference to the returned LinphoneCall object.
2294  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2295  *
2296  * @return a LinphoneCall object or NULL in case of failure
2297 **/
2298 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2299         LinphoneCall *call;
2300         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2301         p->has_video &= !!lc->video_policy.automatically_initiate;
2302         call=linphone_core_invite_address_with_params (lc,addr,p);
2303         linphone_call_params_destroy(p);
2304         return call;
2305 }
2306
2307
2308 /**
2309  * Initiates an outgoing call given a destination LinphoneAddress
2310  *
2311  * @ingroup call_control
2312  * @param lc the LinphoneCore object
2313  * @param addr the destination of the call (sip address).
2314         @param params call parameters
2315  *
2316  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2317  * created by linphone_core_interpret_url().
2318  * The application doesn't own a reference to the returned LinphoneCall object.
2319  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2320  *
2321  * @return a LinphoneCall object or NULL in case of failure
2322 **/
2323 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2324 {
2325         const char *route=NULL;
2326         const char *from=NULL;
2327         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2328         LinphoneAddress *parsed_url2=NULL;
2329         char *real_url=NULL;
2330         LinphoneCall *call;
2331         bool_t use_ice = FALSE;
2332
2333         linphone_core_preempt_sound_resources(lc);
2334
2335         if(!linphone_core_can_we_add_call(lc)){
2336                 if (lc->vtable.display_warning)
2337                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2338                 return NULL;
2339         }
2340         linphone_core_get_default_proxy(lc,&proxy);
2341         route=linphone_core_get_route(lc);
2342
2343         real_url=linphone_address_as_string(addr);
2344         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2345
2346         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2347                 ms_message("Overriding default proxy setting for this call:");
2348                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2349         }
2350
2351         if (dest_proxy!=NULL)
2352                 from=linphone_proxy_config_get_identity(dest_proxy);
2353         else if (proxy!=NULL)
2354                 from=linphone_proxy_config_get_identity(proxy);
2355
2356         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2357         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2358
2359         parsed_url2=linphone_address_new(from);
2360
2361         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2362         call->dest_proxy=dest_proxy;
2363         sal_op_set_route(call->op,route);
2364
2365         if(linphone_core_add_call(lc,call)!= 0)
2366         {
2367                 ms_warning("we had a problem in adding the call into the invite ... weird");
2368                 linphone_call_unref(call);
2369                 return NULL;
2370         }
2371         /* this call becomes now the current one*/
2372         lc->current_call=call;
2373         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2374         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2375                 /* Defer the start of the call after the ICE gathering process. */
2376                 linphone_call_init_media_streams(call);
2377                 linphone_call_start_media_streams_for_ice_gathering(call);
2378                 call->start_time=time(NULL);
2379                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2380                         /* Ice candidates gathering failed, proceed with the call anyway. */
2381                         linphone_call_delete_ice_session(call);
2382                         linphone_call_stop_media_streams_for_ice_gathering(call);
2383                 } else {
2384                         use_ice = TRUE;
2385                 }
2386         }
2387
2388         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2389                 /*defer the start of the call after the OPTIONS ping*/
2390                 call->ping_replied=FALSE;
2391                 call->ping_op=sal_op_new(lc->sal);
2392                 sal_ping(call->ping_op,from,real_url);
2393                 sal_op_set_user_pointer(call->ping_op,call);
2394                 call->start_time=time(NULL);
2395         }else{
2396                 if (use_ice==FALSE) linphone_core_start_invite(lc,call);
2397         }
2398
2399         if (real_url!=NULL) ms_free(real_url);
2400         return call;
2401 }
2402
2403 /**
2404  * Performs a simple call transfer to the specified destination.
2405  *
2406  * The remote endpoint is expected to issue a new call to the specified destination.
2407  * The current call remains active and thus can be later paused or terminated.
2408 **/
2409 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2410 {
2411         char *real_url=NULL;
2412         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2413
2414         if (!real_parsed_url){
2415                 /* bad url */
2416                 return -1;
2417         }
2418         if (call==NULL){
2419                 ms_warning("No established call to refer.");
2420                 return -1;
2421         }
2422         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2423         real_url=linphone_address_as_string (real_parsed_url);
2424         sal_call_refer(call->op,real_url);
2425         ms_free(real_url);
2426         linphone_address_destroy(real_parsed_url);
2427         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2428         return 0;
2429 }
2430
2431 /**
2432  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2433  * @param lc linphone core object
2434  * @param call a running call you want to transfer
2435  * @param dest a running call whose remote person will receive the transfer
2436  *
2437  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2438  * The destination call is a call previously established to introduce the transfered person.
2439  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2440  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2441  * close the call with us (the 'dest' call).
2442 **/
2443 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2444         int result = sal_call_refer_with_replaces (call->op,dest->op);
2445         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2446         return result;
2447 }
2448
2449 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2450         LinphoneCall *call = linphone_core_get_current_call(lc);
2451         if(call != NULL)
2452         {
2453                 if(call->dir==LinphoneCallIncoming
2454                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2455                         return TRUE;
2456         }
2457         return FALSE;
2458 }
2459
2460 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2461         char *barmesg;
2462         char *tmp;
2463         LinphoneAddress *from_parsed;
2464         SalMediaDescription *md;
2465         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2466         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2467
2468         call->localdesc=create_local_media_description(lc,call);
2469         sal_call_set_local_media_description(call->op,call->localdesc);
2470         md=sal_call_get_final_media_description(call->op);
2471         if (md && sal_media_description_empty(md)){
2472                 sal_call_decline(call->op,SalReasonMedia,NULL);
2473                 linphone_call_unref(call);
2474                 return;
2475         }
2476
2477         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2478         linphone_address_clean(from_parsed);
2479         tmp=linphone_address_as_string(from_parsed);
2480         linphone_address_destroy(from_parsed);
2481         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2482             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2483         if (lc->vtable.show) lc->vtable.show(lc);
2484         if (lc->vtable.display_status)
2485             lc->vtable.display_status(lc,barmesg);
2486
2487         /* play the ring if this is the only call*/
2488         if (ms_list_size(lc->calls)==1){
2489                 lc->current_call=call;
2490                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2491                         ring_stop(lc->ringstream);
2492                         lc->ringstream=NULL;
2493                         lc->dmfs_playing_start_time=0;
2494                 }
2495                 if (lc->sound_conf.ring_sndcard!=NULL){
2496                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2497                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2498                                 ms_message("Starting local ring...");
2499                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2500                         }
2501                         else
2502                         {
2503                                 ms_message("the local ring is already started");
2504                         }
2505                 }
2506         }else{
2507                 /* else play a tone within the context of the current call */
2508                 call->ringing_beep=TRUE;
2509                 linphone_core_play_tone(lc);
2510         }
2511
2512         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2513
2514         if (call->state==LinphoneCallIncomingReceived){
2515                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2516
2517                 if (propose_early_media || ringback_tone!=NULL){
2518                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2519                         md=sal_call_get_final_media_description(call->op);
2520                         linphone_core_update_streams(lc,call,md);
2521                 }
2522                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2523                         linphone_core_accept_call(lc,call);
2524                 }
2525         }
2526         linphone_call_unref(call);
2527
2528         ms_free(barmesg);
2529         ms_free(tmp);
2530 }
2531
2532 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2533         const char *subject;
2534         call->camera_active=call->params.has_video;
2535         update_local_media_description(lc,call);
2536         if (call->ice_session != NULL)
2537                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2538
2539         if (call->params.in_conference){
2540                 subject="Conference";
2541         }else{
2542                 subject="Media change";
2543         }
2544         if (lc->vtable.display_status)
2545                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2546         sal_call_set_local_media_description (call->op,call->localdesc);
2547         return sal_call_update(call->op,subject);
2548 }
2549
2550 /**
2551  * @ingroup call_control
2552  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2553  *
2554  * In this version this is limited to the following use cases:
2555  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2556  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2557  *
2558  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2559  * @param lc the core
2560  * @param call the call to be updated
2561  * @param params the new call parameters to use. (may be NULL)
2562  * @return 0 if successful, -1 otherwise.
2563 **/
2564 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2565         int err=0;
2566         if (params!=NULL){
2567                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2568 #ifdef VIDEO_ENABLED
2569                 bool_t has_video = call->params.has_video;
2570                 if ((call->ice_session != NULL) && (call->videostream != NULL) && !params->has_video) {
2571                         ice_session_remove_check_list(call->ice_session, call->videostream->ice_check_list);
2572                         call->videostream->ice_check_list = NULL;
2573                 }
2574                 call->params = *params;
2575                 if ((call->ice_session != NULL) && !has_video && params->has_video) {
2576                         /* Defer call update until the ICE candidates gathering process has finished. */
2577                         ms_message("Defer call update to gather ICE candidates");
2578                         update_local_media_description(lc, call);
2579                         linphone_call_init_video_stream(call);
2580                         video_stream_prepare_video(call->videostream);
2581                         if (linphone_core_gather_ice_candidates(lc,call)<0) {
2582                                 /* Ice candidates gathering failed, proceed with the call anyway. */
2583                                 linphone_call_delete_ice_session(call);
2584                         } else return err;
2585                 }
2586 #endif
2587                 err = linphone_core_start_update_call(lc, call);
2588         }else{
2589 #ifdef VIDEO_ENABLED
2590                 if (call->videostream!=NULL){
2591                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2592                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2593                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2594                         }else video_stream_update_video_params(call->videostream);
2595                 }
2596 #endif
2597         }
2598
2599         return err;
2600 }
2601
2602 /**
2603  * @ingroup call_control
2604  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2605  *
2606  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2607  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2608  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2609  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2610  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2611  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2612  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2613  *
2614  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2615 **/
2616 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2617         if (call->state==LinphoneCallUpdatedByRemote){
2618                 call->defer_update=TRUE;
2619                 return 0;
2620         }
2621         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2622         return -1;
2623 }
2624
2625 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2626         SalMediaDescription *md;
2627         if (call->ice_session != NULL) {
2628                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2629                         /* Defer the sending of the answer until there are no losing pairs left. */
2630                         return 0;
2631                 }
2632                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2633         }
2634         sal_call_set_local_media_description(call->op,call->localdesc);
2635         sal_call_accept(call->op);
2636         md=sal_call_get_final_media_description(call->op);
2637         if (md && !sal_media_description_empty(md))
2638                 linphone_core_update_streams (lc,call,md);
2639         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2640         return 0;
2641 }
2642
2643 /**
2644  * @ingroup call_control
2645  * Accept call modifications initiated by other end.
2646  *
2647  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2648  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2649  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2650  * requested by the other party, such as whether a video stream is requested.
2651  *
2652  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2653  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2654  * If params is not NULL, then the update will be accepted according to the parameters passed.
2655  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2656  * (see linphone_call_params_enable_video()).
2657  * @param lc the linphone core object.
2658  * @param call the LinphoneCall object
2659  * @param params a LinphoneCallParams object describing the call parameters to accept.
2660  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2661 **/
2662 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2663 #ifdef VIDEO_ENABLED
2664         bool_t old_has_video = call->params.has_video;
2665 #endif
2666         if (call->state!=LinphoneCallUpdatedByRemote){
2667                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2668                          linphone_call_state_to_string(call->state));
2669                 return -1;
2670         }
2671         if (params==NULL){
2672                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2673         }else
2674                 call->params=*params;
2675
2676         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2677                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2678                 call->params.has_video=FALSE;
2679         }
2680         if (call->current_params.in_conference) {
2681                 ms_warning("Video isn't supported in conference");
2682                 call->params.has_video = FALSE;
2683         }
2684         call->params.has_video &= linphone_core_media_description_contains_video_stream(sal_call_get_remote_media_description(call->op));
2685         call->camera_active=call->params.has_video;
2686         update_local_media_description(lc,call);
2687         if (call->ice_session != NULL) {
2688                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2689 #ifdef VIDEO_ENABLED
2690                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2691                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2692                                 linphone_call_init_video_stream(call);
2693                                 video_stream_prepare_video(call->videostream);
2694                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2695                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2696                                         linphone_call_delete_ice_session(call);
2697                                 } else return 0;
2698                         }
2699                 }
2700 #endif
2701         }
2702         linphone_core_start_accept_call_update(lc, call);
2703         return 0;
2704 }
2705
2706 /**
2707  * Accept an incoming call.
2708  *
2709  * @ingroup call_control
2710  * Basically the application is notified of incoming calls within the
2711  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2712  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2713  * The application can later accept the call using this method.
2714  * @param lc the LinphoneCore object
2715  * @param call the LinphoneCall object representing the call to be answered.
2716  *
2717 **/
2718 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
2719         return linphone_core_accept_call_with_params(lc,call,NULL);
2720 }
2721
2722 /**
2723  * Accept an incoming call, with parameters.
2724  *
2725  * @ingroup call_control
2726  * Basically the application is notified of incoming calls within the
2727  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2728  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2729  * The application can later accept the call using
2730  * this method.
2731  * @param lc the LinphoneCore object
2732  * @param call the LinphoneCall object representing the call to be answered.
2733  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
2734  *
2735 **/
2736 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
2737 {
2738         LinphoneProxyConfig *cfg=NULL;
2739         const char *contact=NULL;
2740         SalOp *replaced;
2741         SalMediaDescription *new_md;
2742         bool_t was_ringing=FALSE;
2743
2744         if (call==NULL){
2745                 //if just one call is present answer the only one ...
2746                 if(linphone_core_get_calls_nb (lc) != 1)
2747                         return -1;
2748                 else
2749                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
2750         }
2751
2752         if (call->state==LinphoneCallConnected){
2753                 /*call already accepted*/
2754                 return -1;
2755         }
2756
2757         /* check if this call is supposed to replace an already running one*/
2758         replaced=sal_call_get_replaces(call->op);
2759         if (replaced){
2760                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
2761                 if (rc){
2762                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
2763                                    call,rc);
2764                         linphone_core_terminate_call(lc,rc);
2765                 }
2766         }
2767
2768         if (lc->current_call!=call){
2769                 linphone_core_preempt_sound_resources(lc);
2770         }
2771
2772         /*stop ringing */
2773         if (lc->ringstream!=NULL) {
2774                 ms_message("stop ringing");
2775                 ring_stop(lc->ringstream);
2776                 ms_message("ring stopped");
2777                 lc->ringstream=NULL;
2778                 was_ringing=TRUE;
2779         }
2780         if (call->ringing_beep){
2781                 linphone_core_stop_dtmf(lc);
2782                 call->ringing_beep=FALSE;
2783         }
2784
2785         linphone_core_get_default_proxy(lc,&cfg);
2786         call->dest_proxy=cfg;
2787         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
2788
2789         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
2790                 ms_message("Overriding default proxy setting for this call:");
2791                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
2792         }
2793         /*try to be best-effort in giving real local or routable contact address*/
2794         contact=get_fixed_contact(lc,call,call->dest_proxy);
2795         if (contact)
2796                 sal_op_set_contact(call->op,contact);
2797
2798         if (params){
2799                 call->params=*params;
2800                 call->params.has_video &= linphone_core_media_description_contains_video_stream(sal_call_get_remote_media_description(call->op));
2801                 call->camera_active=call->params.has_video;
2802                 update_local_media_description(lc,call);
2803                 sal_call_set_local_media_description(call->op,call->localdesc);
2804         }
2805
2806         if (call->audiostream==NULL)
2807                 linphone_call_init_media_streams(call);
2808         if (!was_ringing && call->audiostream->ticker==NULL){
2809                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2810         }
2811
2812         sal_call_accept(call->op);
2813         if (lc->vtable.display_status!=NULL)
2814                 lc->vtable.display_status(lc,_("Connected."));
2815         lc->current_call=call;
2816         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
2817         new_md=sal_call_get_final_media_description(call->op);
2818         linphone_core_update_streams(lc, call, new_md);
2819         if (new_md){
2820                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2821         }else call->media_pending=TRUE;
2822
2823         ms_message("call answered.");
2824         return 0;
2825 }
2826
2827 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
2828         sal_call_terminate(call->op);
2829
2830         /*stop ringing*/
2831         if (lc->ringstream!=NULL) {
2832                 ring_stop(lc->ringstream);
2833                 lc->ringstream=NULL;
2834         }
2835         linphone_call_stop_media_streams(call);
2836         if (lc->vtable.display_status!=NULL)
2837                 lc->vtable.display_status(lc,_("Call aborted") );
2838         linphone_call_set_state(call,LinphoneCallError,error);
2839         return 0;
2840 }
2841
2842 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
2843         if (call->state==LinphoneCallIncomingReceived){
2844                 if (call->reason!=LinphoneReasonNotAnswered)
2845                         call->reason=LinphoneReasonDeclined;
2846         }
2847         /*stop ringing*/
2848         if (lc->ringstream!=NULL) {
2849                 ring_stop(lc->ringstream);
2850                 lc->ringstream=NULL;
2851         }
2852
2853         linphone_call_stop_media_streams(call);
2854         if (lc->vtable.display_status!=NULL)
2855                 lc->vtable.display_status(lc,_("Call ended") );
2856 }
2857
2858 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
2859         if (call->state==LinphoneCallIncomingReceived){
2860                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
2861                 call->reason=LinphoneReasonDeclined;
2862                 terminate_call(lc,call);
2863                 linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2864         }else{
2865                 ms_error("Bad state for call redirection.");
2866                 return -1;
2867     }
2868         return 0;
2869 }
2870
2871
2872 /**
2873  * Terminates a call.
2874  *
2875  * @ingroup call_control
2876  * @param lc the LinphoneCore
2877  * @param the_call the LinphoneCall object representing the call to be terminated.
2878 **/
2879 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
2880 {
2881         LinphoneCall *call;
2882         if (the_call == NULL){
2883                 call = linphone_core_get_current_call(lc);
2884                 if (ms_list_size(lc->calls)==1){
2885                         call=(LinphoneCall*)lc->calls->data;
2886                 }else{
2887                         ms_warning("No unique call to terminate !");
2888                         return -1;
2889                 }
2890         }
2891         else
2892         {
2893                 call = the_call;
2894         }
2895         sal_call_terminate(call->op);
2896         terminate_call(lc,call);
2897
2898         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2899         return 0;
2900 }
2901
2902 /**
2903  * Terminates all the calls.
2904  *
2905  * @ingroup call_control
2906  * @param lc The LinphoneCore
2907 **/
2908 int linphone_core_terminate_all_calls(LinphoneCore *lc){
2909         MSList *calls=lc->calls;
2910         while(calls) {
2911                 LinphoneCall *c=(LinphoneCall*)calls->data;
2912                 calls=calls->next;
2913                 linphone_core_terminate_call(lc,c);
2914         }
2915         return 0;
2916 }
2917
2918 /**
2919  * Returns the current list of calls.
2920  *
2921  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
2922  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
2923  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
2924  *
2925  * @ingroup call_control
2926 **/
2927 const MSList *linphone_core_get_calls(LinphoneCore *lc)
2928 {
2929         return lc->calls;
2930 }
2931
2932 /**
2933  * Returns TRUE if there is a call running.
2934  *
2935  * @ingroup call_control
2936 **/
2937 bool_t linphone_core_in_call(const LinphoneCore *lc){
2938         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
2939 }
2940
2941 /**
2942  * Returns The _LinphoneCall struct of the current call if one is in call
2943  *
2944  * @ingroup call_control
2945 **/
2946 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
2947 {
2948         return lc->current_call;
2949 }
2950
2951 /**
2952  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
2953  * this file will be played to the remote user.
2954  *
2955  * @ingroup call_control
2956 **/
2957 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
2958 {
2959         const char *subject=NULL;
2960
2961         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
2962                 ms_warning("Cannot pause this call, it is not active.");
2963                 return -1;
2964         }
2965         update_local_media_description(lc,call);
2966         if (call->ice_session != NULL)
2967                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2968         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
2969                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
2970                 subject="Call on hold";
2971         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
2972                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
2973                 subject="Call on hold for me too";
2974         }else{
2975                 ms_error("No reason to pause this call, it is already paused or inactive.");
2976                 return -1;
2977         }
2978         sal_call_set_local_media_description(call->op,call->localdesc);
2979         if (sal_call_update(call->op,subject) != 0){
2980                 if (lc->vtable.display_warning)
2981                         lc->vtable.display_warning(lc,_("Could not pause the call"));
2982         }
2983         lc->current_call=NULL;
2984         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
2985         if (lc->vtable.display_status)
2986                 lc->vtable.display_status(lc,_("Pausing the current call..."));
2987         if (call->audiostream || call->videostream)
2988                 linphone_call_stop_media_streams (call);
2989         return 0;
2990 }
2991
2992 /**
2993  * Pause all currently running calls.
2994 **/
2995 int linphone_core_pause_all_calls(LinphoneCore *lc){
2996         const MSList *elem;
2997         for(elem=lc->calls;elem!=NULL;elem=elem->next){
2998                 LinphoneCall *call=(LinphoneCall *)elem->data;
2999                 LinphoneCallState cs=linphone_call_get_state(call);
3000                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3001                         linphone_core_pause_call(lc,call);
3002                 }
3003         }
3004         return 0;
3005 }
3006
3007 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3008         LinphoneCall *current_call;
3009         if (linphone_core_is_in_conference(lc)){
3010                 linphone_core_leave_conference(lc);
3011                 return;
3012         }
3013         current_call=linphone_core_get_current_call(lc);
3014         if(current_call != NULL){
3015                 ms_message("Pausing automatically the current call.");
3016                 linphone_core_pause_call(lc,current_call);
3017         }
3018 }
3019
3020 /**
3021  * Resumes the call.
3022  *
3023  * @ingroup call_control
3024 **/
3025 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3026 {
3027         char temp[255]={0};
3028         LinphoneCall *call = the_call;
3029         const char *subject="Call resuming";
3030
3031         if(call->state!=LinphoneCallPaused ){
3032                 ms_warning("we cannot resume a call that has not been established and paused before");
3033                 return -1;
3034         }
3035         if (call->params.in_conference==FALSE){
3036                 linphone_core_preempt_sound_resources(lc);
3037                 ms_message("Resuming call %p",call);
3038         }
3039
3040         /* Stop playing music immediately. If remote side is a conference it
3041          prevents the participants to hear it while the 200OK comes back.*/
3042         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3043
3044         update_local_media_description(lc,the_call);
3045         if (call->ice_session != NULL)
3046                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3047         sal_call_set_local_media_description(call->op,call->localdesc);
3048         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3049         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3050         if(sal_call_update(call->op,subject) != 0){
3051                 return -1;
3052         }
3053         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3054         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3055         if (lc->vtable.display_status)
3056                 lc->vtable.display_status(lc,temp);
3057         return 0;
3058 }
3059
3060 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3061         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3062         return !linphone_address_weak_equal (addr,raddr);
3063 }
3064
3065 /**
3066  * Get the call with the remote_address specified
3067  * @param lc
3068  * @param remote_address
3069  * @return the LinphoneCall of the call if found
3070  */
3071 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3072         LinphoneAddress *raddr=linphone_address_new(remote_address);
3073         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3074         if (elem) return (LinphoneCall*) elem->data;
3075         return NULL;
3076 }
3077
3078 int linphone_core_send_publish(LinphoneCore *lc,
3079                                LinphoneOnlineStatus presence_mode)
3080 {
3081         const MSList *elem;
3082         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3083                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3084                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3085         }
3086         return 0;
3087 }
3088
3089 /**
3090  * Set the incoming call timeout in seconds.
3091  *
3092  * @ingroup call_control
3093  * If an incoming call isn't answered for this timeout period, it is
3094  * automatically declined.
3095 **/
3096 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3097         lc->sip_conf.inc_timeout=seconds;
3098 }
3099
3100 /**
3101  * Returns the incoming call timeout
3102  *
3103  * @ingroup call_control
3104  * See linphone_core_set_inc_timeout() for details.
3105 **/
3106 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3107         return lc->sip_conf.inc_timeout;
3108 }
3109
3110 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3111                                                                                                         const char *contact,
3112                                                                                                         LinphoneOnlineStatus presence_mode)
3113 {
3114         if (minutes_away>0) lc->minutes_away=minutes_away;
3115
3116         if (lc->alt_contact!=NULL) {
3117                 ms_free(lc->alt_contact);
3118                 lc->alt_contact=NULL;
3119         }
3120         if (contact) lc->alt_contact=ms_strdup(contact);
3121         if (lc->presence_mode!=presence_mode){
3122                 linphone_core_notify_all_friends(lc,presence_mode);
3123                 /*
3124                    Improve the use of all LINPHONE_STATUS available.
3125                    !TODO Do not mix "presence status" with "answer status code"..
3126                    Use correct parameter to follow sip_if_match/sip_etag.
3127                  */
3128                 linphone_core_send_publish(lc,presence_mode);
3129         }
3130         lc->presence_mode=presence_mode;
3131 }
3132
3133 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3134         return lc->presence_mode;
3135 }
3136
3137 /**
3138  * Get playback sound level in 0-100 scale.
3139  *
3140  * @ingroup media_parameters
3141 **/
3142 int linphone_core_get_play_level(LinphoneCore *lc)
3143 {
3144         return lc->sound_conf.play_lev;
3145 }
3146
3147 /**
3148  * Get ring sound level in 0-100 scale
3149  *
3150  * @ingroup media_parameters
3151 **/
3152 int linphone_core_get_ring_level(LinphoneCore *lc)
3153 {
3154         return lc->sound_conf.ring_lev;
3155 }
3156
3157 /**
3158  * Get sound capture level in 0-100 scale
3159  *
3160  * @ingroup media_parameters
3161 **/
3162 int linphone_core_get_rec_level(LinphoneCore *lc){
3163         return lc->sound_conf.rec_lev;
3164 }
3165
3166 /**
3167  * Set sound ring level in 0-100 scale
3168  *
3169  * @ingroup media_parameters
3170 **/
3171 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3172         MSSndCard *sndcard;
3173         lc->sound_conf.ring_lev=level;
3174         sndcard=lc->sound_conf.ring_sndcard;
3175         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3176 }
3177
3178 /**
3179  * Allow to control play level before entering sound card:  gain in db
3180  *
3181  * @ingroup media_parameters
3182 **/
3183 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3184         float gain=gaindb;
3185         LinphoneCall *call=linphone_core_get_current_call (lc);
3186         AudioStream *st;
3187
3188         lc->sound_conf.soft_play_lev=gaindb;
3189
3190         if (call==NULL || (st=call->audiostream)==NULL){
3191                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3192                 return;
3193         }
3194         if (st->volrecv){
3195                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3196         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3197 }
3198
3199 /**
3200  * Get playback gain in db before entering  sound card.
3201  *
3202  * @ingroup media_parameters
3203 **/
3204 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3205         return lc->sound_conf.soft_play_lev;
3206 }
3207
3208 /**
3209  * Set sound playback level in 0-100 scale
3210  *
3211  * @ingroup media_parameters
3212 **/
3213 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3214         MSSndCard *sndcard;
3215         lc->sound_conf.play_lev=level;
3216         sndcard=lc->sound_conf.play_sndcard;
3217         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3218 }
3219
3220 /**
3221  * Set sound capture level in 0-100 scale
3222  *
3223  * @ingroup media_parameters
3224 **/
3225 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3226 {
3227         MSSndCard *sndcard;
3228         lc->sound_conf.rec_lev=level;
3229         sndcard=lc->sound_conf.capt_sndcard;
3230         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3231 }
3232
3233 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3234         MSSndCard *sndcard=NULL;
3235         if (devid!=NULL){
3236                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3237                 if (sndcard!=NULL &&
3238                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3239                         ms_warning("%s card does not have the %s capability, ignoring.",
3240                                 devid,
3241                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3242                         sndcard=NULL;
3243                 }
3244         }
3245         if (sndcard==NULL) {
3246                 /* get a card that has read+write capabilities */
3247                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3248                 /* otherwise refine to the first card having the right capability*/
3249                 if (sndcard==NULL){
3250                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3251                         for(;elem!=NULL;elem=elem->next){
3252                                 sndcard=(MSSndCard*)elem->data;
3253                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3254                         }
3255                 }
3256                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3257                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3258                         if (elem) sndcard=(MSSndCard*)elem->data;
3259         }
3260         }
3261         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3262         return sndcard;
3263 }
3264
3265 /**
3266  * Returns true if the specified sound device can capture sound.
3267  *
3268  * @ingroup media_parameters
3269  * @param lc The LinphoneCore object
3270  * @param devid the device name as returned by linphone_core_get_sound_devices()
3271 **/
3272 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3273         MSSndCard *sndcard;
3274         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3275         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3276         return FALSE;
3277 }
3278
3279 /**
3280  * Returns true if the specified sound device can play sound.
3281  *
3282  * @ingroup media_parameters
3283  * @param lc The LinphoneCore object
3284  * @param devid the device name as returned by linphone_core_get_sound_devices()
3285 **/
3286 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3287         MSSndCard *sndcard;
3288         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3289         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3290         return FALSE;
3291 }
3292
3293 /**
3294  * Sets the sound device used for ringing.
3295  *
3296  * @ingroup media_parameters
3297  * @param lc The LinphoneCore object
3298  * @param devid the device name as returned by linphone_core_get_sound_devices()
3299 **/
3300 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3301         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3302         lc->sound_conf.ring_sndcard=card;
3303         if (card && linphone_core_ready(lc))
3304                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3305         return 0;
3306 }
3307
3308 /**
3309  * Sets the sound device used for playback.
3310  *
3311  * @ingroup media_parameters
3312  * @param lc The LinphoneCore object
3313  * @param devid the device name as returned by linphone_core_get_sound_devices()
3314 **/
3315 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3316         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3317         lc->sound_conf.play_sndcard=card;
3318         if (card &&  linphone_core_ready(lc))
3319                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3320         return 0;
3321 }
3322
3323 /**
3324  * Sets the sound device used for capture.
3325  *
3326  * @ingroup media_parameters
3327  * @param lc The LinphoneCore object
3328  * @param devid the device name as returned by linphone_core_get_sound_devices()
3329 **/
3330 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3331         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3332         lc->sound_conf.capt_sndcard=card;
3333         if (card &&  linphone_core_ready(lc))
3334                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3335         return 0;
3336 }
3337
3338 /**
3339  * Returns the name of the currently assigned sound device for ringing.
3340  *
3341  * @ingroup media_parameters
3342  * @param lc The LinphoneCore object
3343 **/
3344 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3345 {
3346         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3347         return NULL;
3348 }
3349
3350 /**
3351  * Returns the name of the currently assigned sound device for playback.
3352  *
3353  * @ingroup media_parameters
3354  * @param lc The LinphoneCore object
3355 **/
3356 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3357 {
3358         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3359 }
3360
3361 /**
3362  * Returns the name of the currently assigned sound device for capture.
3363  *
3364  * @ingroup media_parameters
3365  * @param lc The LinphoneCore object
3366 **/
3367 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3368 {
3369         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3370 }
3371
3372 /**
3373  * Returns an unmodifiable array of available sound devices.
3374  *
3375  * The array is NULL terminated.
3376  *
3377  * @ingroup media_parameters
3378  * @param lc The LinphoneCore object
3379 **/
3380 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3381         return lc->sound_conf.cards;
3382 }
3383
3384 /**
3385  * Returns an unmodifiable array of available video capture devices.
3386  *
3387  * @ingroup media_parameters
3388  * The array is NULL terminated.
3389 **/
3390 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3391         return lc->video_conf.cams;
3392 }
3393
3394 /**
3395  * Update detection of sound devices.
3396  *
3397  * Use this function when the application is notified of USB plug events, so that
3398  * list of available hardwares for sound playback and capture is updated.
3399  **/
3400 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3401         const char *ringer,*playback,*capture;
3402         ringer=linphone_core_get_ringer_device(lc);
3403         playback=linphone_core_get_playback_device(lc);
3404         capture=linphone_core_get_capture_device(lc);
3405         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3406         build_sound_devices_table(lc);
3407         linphone_core_set_ringer_device(lc,ringer);
3408         linphone_core_set_playback_device(lc,playback);
3409         linphone_core_set_capture_device(lc,capture);
3410 }
3411
3412 /**
3413  * Update detection of camera devices.
3414  *
3415  * Use this function when the application is notified of USB plug events, so that
3416  * list of available hardwares for video capture is updated.
3417  **/
3418 void linphone_core_reload_video_devices(LinphoneCore *lc){
3419         const char *devid;
3420         devid=linphone_core_get_video_device(lc);
3421         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3422         build_video_devices_table(lc);
3423         linphone_core_set_video_device(lc,devid);
3424 }
3425
3426 char linphone_core_get_sound_source(LinphoneCore *lc)
3427 {
3428         return lc->sound_conf.source;
3429 }
3430
3431 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3432 {
3433         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3434         lc->sound_conf.source=source;
3435         if (!sndcard) return;
3436         switch(source){
3437                 case 'm':
3438                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3439                         break;
3440                 case 'l':
3441                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3442                         break;
3443         }
3444
3445 }
3446
3447
3448 /**
3449  * Sets the path to a wav file used for ringing.
3450  *
3451  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3452  * @param lc The LinphoneCore object
3453  *
3454  * @ingroup media_parameters
3455 **/
3456 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3457         if (lc->sound_conf.local_ring!=0){
3458                 ms_free(lc->sound_conf.local_ring);
3459                 lc->sound_conf.local_ring=NULL;
3460         }
3461         if (path)
3462                 lc->sound_conf.local_ring=ms_strdup(path);
3463         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3464                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3465 }
3466
3467 /**
3468  * Returns the path to the wav file used for ringing.
3469  *
3470  * @param lc The LinphoneCore object
3471  * @ingroup media_parameters
3472 **/
3473 const char *linphone_core_get_ring(const LinphoneCore *lc){
3474         return lc->sound_conf.local_ring;
3475 }
3476
3477 /**
3478  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3479  *
3480  * @param path
3481  * @param lc The LinphoneCore object
3482  *
3483  * @ingroup media_parameters
3484 **/
3485 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3486         sal_set_root_ca(lc->sal, path);
3487 }
3488
3489 /**
3490  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3491 **/
3492 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3493         sal_verify_server_certificates(lc->sal,yesno);
3494 }
3495
3496 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3497         LinphoneCore *lc=(LinphoneCore*)ud;
3498         lc->preview_finished=1;
3499 }
3500
3501 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3502 {
3503         if (lc->ringstream!=0){
3504                 ms_warning("Cannot start ring now,there's already a ring being played");
3505                 return -1;
3506         }
3507         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3508         lc->preview_finished=0;
3509         if (lc->sound_conf.ring_sndcard!=NULL){
3510                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3511                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3512         }
3513         return 0;
3514 }
3515
3516 /**
3517  * Sets the path to a wav file used for ringing back.
3518  *
3519  * Ringback means the ring that is heard when it's ringing at the remote party.
3520  * The file must be a wav 16bit linear.
3521  *
3522  * @ingroup media_parameters
3523 **/
3524 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3525         if (lc->sound_conf.remote_ring!=0){
3526                 ms_free(lc->sound_conf.remote_ring);
3527         }
3528         lc->sound_conf.remote_ring=ms_strdup(path);
3529 }
3530
3531 /**
3532  * Returns the path to the wav file used for ringing back.
3533  *
3534  * @ingroup media_parameters
3535 **/
3536 const char * linphone_core_get_ringback(const LinphoneCore *lc){
3537         return lc->sound_conf.remote_ring;
3538 }
3539
3540 /**
3541  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
3542  *
3543  * @ingroup media_parameters
3544 **/
3545 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
3546         lc->sound_conf.ec=val;
3547         if ( linphone_core_ready(lc))
3548                 lp_config_set_int(lc->config,"sound","echocancellation",val);
3549 }
3550
3551
3552 /**
3553  * Returns TRUE if echo cancellation is enabled.
3554  *
3555  * @ingroup media_parameters
3556 **/
3557 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
3558         return lc->sound_conf.ec;
3559 }
3560
3561 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
3562         lc->sound_conf.ea=val;
3563 }
3564
3565 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
3566         return lc->sound_conf.ea;
3567 }
3568
3569 /**
3570  * Mutes or unmutes the local microphone.
3571  *
3572  * @ingroup media_parameters
3573 **/
3574 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
3575         LinphoneCall *call=linphone_core_get_current_call(lc);
3576         AudioStream *st=NULL;
3577         if (linphone_core_is_in_conference(lc)){
3578                 lc->conf_ctx.local_muted=val;
3579                 st=lc->conf_ctx.local_participant;
3580         }else if (call==NULL){
3581                 ms_warning("linphone_core_mute_mic(): No current call !");
3582                 return;
3583         }else{
3584                 st=call->audiostream;
3585                 call->audio_muted=val;
3586         }
3587         if (st!=NULL){
3588                 audio_stream_set_mic_gain(st,
3589                         (val==TRUE) ? 0 : lp_config_get_float(lc->config,"sound","mic_gain",1));
3590                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
3591                         audio_stream_mute_rtp(st,val);
3592                 }
3593
3594         }
3595 }
3596 /**
3597  * Returns whether microphone is muted.
3598 **/
3599 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
3600         LinphoneCall *call=linphone_core_get_current_call(lc);
3601         if (linphone_core_is_in_conference(lc)){
3602                 return lc->conf_ctx.local_muted;
3603         }else if (call==NULL){
3604                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3605                 return FALSE;
3606         }
3607         return call->audio_muted;
3608 }
3609
3610 // returns rtp transmission status for an active stream
3611 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
3612 // was set on then rtp transmission is also muted
3613 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
3614         LinphoneCall *call=linphone_core_get_current_call(lc);
3615         if (call==NULL){
3616                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3617                 return FALSE;
3618         }
3619         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
3620                 return call->audio_muted;
3621         }
3622         return FALSE;
3623 }
3624
3625 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
3626         lc->sound_conf.agc=val;
3627 }
3628
3629 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
3630         return lc->sound_conf.agc;
3631 }
3632
3633 /**
3634  * Send the specified dtmf.
3635  *
3636  * @ingroup media_parameters
3637  * This function only works during calls. The dtmf is automatically played to the user.
3638  * @param lc The LinphoneCore object
3639  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
3640  *
3641 **/
3642 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
3643 {
3644         LinphoneCall *call=linphone_core_get_current_call(lc);
3645         if (call==NULL){
3646                 ms_warning("linphone_core_send_dtmf(): no active call");
3647                 return;
3648         }
3649         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
3650         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
3651         {
3652                 /* In Band DTMF */
3653                 if (call->audiostream!=NULL){
3654                         audio_stream_send_dtmf(call->audiostream,dtmf);
3655                 }
3656                 else
3657                 {
3658                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
3659                 }
3660         }
3661         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
3662                 /* Out of Band DTMF (use INFO method) */
3663                 sal_call_send_dtmf(call->op,dtmf);
3664         }
3665 }
3666
3667 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
3668         if (lc->net_conf.stun_server!=NULL)
3669                 ms_free(lc->net_conf.stun_server);
3670         if (server)
3671                 lc->net_conf.stun_server=ms_strdup(server);
3672         else lc->net_conf.stun_server=NULL;
3673         if (linphone_core_ready(lc))
3674                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
3675 }
3676
3677 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
3678         return lc->net_conf.stun_server;
3679 }
3680
3681 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
3682         return lc->net_conf.relay;
3683 }
3684
3685 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
3686         if (lc->net_conf.relay!=NULL){
3687                 ms_free(lc->net_conf.relay);
3688                 lc->net_conf.relay=NULL;
3689         }
3690         if (addr){
3691                 lc->net_conf.relay=ms_strdup(addr);
3692         }
3693         return 0;
3694 }
3695
3696 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
3697 {
3698         if (lc->net_conf.nat_address!=NULL){
3699                 ms_free(lc->net_conf.nat_address);
3700         }
3701         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
3702         else lc->net_conf.nat_address=NULL;
3703         if (lc->sip_conf.contact) update_primary_contact(lc);
3704 }
3705
3706 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
3707         return lc->net_conf.nat_address;
3708 }
3709
3710 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
3711 {
3712         struct sockaddr_storage ss;
3713         socklen_t ss_len;
3714         int error;
3715         char ipstring [INET6_ADDRSTRLEN];
3716
3717         if (lc->net_conf.nat_address==NULL) return NULL;
3718
3719         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
3720                 return lc->net_conf.nat_address;
3721         }
3722
3723         error = getnameinfo((struct sockaddr *)&ss, ss_len,
3724                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
3725         if (error) {
3726                 return lc->net_conf.nat_address;
3727         }
3728
3729         if (lc->net_conf.nat_address_ip!=NULL){
3730                 ms_free(lc->net_conf.nat_address_ip);
3731         }
3732         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
3733         return lc->net_conf.nat_address_ip;
3734 }
3735
3736 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
3737         lc->net_conf.firewall_policy=pol;
3738         if (lc->sip_conf.contact) update_primary_contact(lc);
3739         if (linphone_core_ready(lc))
3740                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
3741 }
3742
3743 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
3744         return lc->net_conf.firewall_policy;
3745 }
3746
3747 /**
3748  * Get the list of call logs (past calls).
3749  *
3750  * @ingroup call_logs
3751 **/
3752 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
3753         return lc->call_logs;
3754 }
3755
3756 /**
3757  * Erase the call log.
3758  *
3759  * @ingroup call_logs
3760 **/
3761 void linphone_core_clear_call_logs(LinphoneCore *lc){
3762         lc->missed_calls=0;
3763         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
3764         lc->call_logs=ms_list_free(lc->call_logs);
3765         call_logs_write_to_config_file(lc);
3766 }
3767
3768 /**
3769  * Returns number of missed calls.
3770  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
3771 **/
3772 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
3773         return lc->missed_calls;
3774 }
3775
3776 /**
3777  * Resets the counter of missed calls.
3778 **/
3779 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
3780         lc->missed_calls=0;
3781 }
3782
3783 /**
3784  * Remove a specific call log from call history list.
3785  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
3786  * @param lc the linphone core object
3787  * @param a LinphoneCallLog object.
3788 **/
3789 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
3790         lc->call_logs = ms_list_remove(lc->call_logs, cl);
3791         call_logs_write_to_config_file(lc);
3792         linphone_call_log_destroy(cl);
3793 }
3794
3795 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
3796 #ifdef VIDEO_ENABLED
3797         if (val){
3798                 if (lc->previewstream==NULL){
3799                         lc->previewstream=video_preview_new();
3800                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
3801                         if (lc->video_conf.displaytype)
3802                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
3803                         if (lc->preview_window_id!=0)
3804                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
3805                         video_preview_start(lc->previewstream,lc->video_conf.device);
3806                 }
3807         }else{
3808                 if (lc->previewstream!=NULL){
3809                         video_preview_stop(lc->previewstream);
3810                         lc->previewstream=NULL;
3811                 }
3812         }
3813 #endif
3814 }
3815
3816 /**
3817  * Enables video globally.
3818  *
3819  * @ingroup media_parameters
3820  * This function does not have any effect during calls. It just indicates LinphoneCore to
3821  * initiate future calls with video or not. The two boolean parameters indicate in which
3822  * direction video is enabled. Setting both to false disables video entirely.
3823  *
3824  * @param lc The LinphoneCore object
3825  * @param vcap_enabled indicates whether video capture is enabled
3826  * @param display_enabled indicates whether video display should be shown
3827  *
3828 **/
3829 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
3830 #ifndef VIDEO_ENABLED
3831         if (vcap_enabled || display_enabled)
3832                 ms_warning("This version of linphone was built without video support.");
3833 #endif
3834         lc->video_conf.capture=vcap_enabled;
3835         lc->video_conf.display=display_enabled;
3836
3837         /* need to re-apply network bandwidth settings*/
3838         linphone_core_set_download_bandwidth(lc,
3839                 linphone_core_get_download_bandwidth(lc));
3840         linphone_core_set_upload_bandwidth(lc,
3841                 linphone_core_get_upload_bandwidth(lc));
3842 }
3843
3844 bool_t linphone_core_video_supported(LinphoneCore *lc){
3845 #ifdef VIDEO_ENABLED
3846         return TRUE;
3847 #else
3848         return FALSE;
3849 #endif
3850 }
3851
3852 /**
3853  * Returns TRUE if video is enabled, FALSE otherwise.
3854  * @ingroup media_parameters
3855 **/
3856 bool_t linphone_core_video_enabled(LinphoneCore *lc){
3857         return (lc->video_conf.display || lc->video_conf.capture);
3858 }
3859
3860 /**
3861  * Sets the default policy for video.
3862  * This policy defines whether:
3863  * - video shall be initiated by default for outgoing calls
3864  * - video shall be accepter by default for incoming calls
3865  * @ingroup media_parameters
3866 **/
3867 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
3868         lc->video_policy=*policy;
3869         if (linphone_core_ready(lc)){
3870                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
3871                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
3872         }
3873 }
3874
3875 /**
3876  * Get the default policy for video.
3877  * See linphone_core_set_video_policy() for more details.
3878  * @ingroup media_parameters
3879 **/
3880 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
3881         return &lc->video_policy;
3882 }
3883
3884 /**
3885  * Controls video preview enablement.
3886  *
3887  * @ingroup media_parameters
3888  * Video preview refers to the action of displaying the local webcam image
3889  * to the user while not in call.
3890 **/
3891 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
3892         lc->video_conf.show_local=val;
3893         if (linphone_core_ready(lc))
3894                 lp_config_set_int(lc->config,"video","show_local",val);
3895 }
3896
3897 /**
3898  * Returns TRUE if video previewing is enabled.
3899  * @ingroup media_parameters
3900 **/
3901 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
3902         return lc->video_conf.show_local;
3903 }
3904
3905 /**
3906  * Enables or disable self view during calls.
3907  *
3908  * @ingroup media_parameters
3909  * Self-view refers to having local webcam image inserted in corner
3910  * of the video window during calls.
3911  * This function works at any time, including during calls.
3912 **/
3913 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
3914 #ifdef VIDEO_ENABLED
3915         LinphoneCall *call=linphone_core_get_current_call (lc);
3916         lc->video_conf.selfview=val;
3917         if (call && call->videostream){
3918                 video_stream_enable_self_view(call->videostream,val);
3919         }
3920         if (linphone_core_ready(lc)){
3921                 lp_config_set_int(lc->config,"video","self_view",val);
3922         }
3923 #endif
3924 }
3925
3926 /**
3927  * Returns TRUE if self-view is enabled, FALSE otherwise.
3928  *
3929  * @ingroup media_parameters
3930  *
3931  * Refer to linphone_core_enable_self_view() for details.
3932 **/
3933 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
3934         return lc->video_conf.selfview;
3935 }
3936
3937 /**
3938  * Sets the active video device.
3939  *
3940  * @ingroup media_parameters
3941  * @param lc The LinphoneCore object
3942  * @param id the name of the video device as returned by linphone_core_get_video_devices()
3943 **/
3944 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
3945         MSWebCam *olddev=lc->video_conf.device;
3946         const char *vd;
3947         if (id!=NULL){
3948                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
3949                 if (lc->video_conf.device==NULL){
3950                         ms_warning("Could not found video device %s",id);
3951                 }
3952         }
3953         if (lc->video_conf.device==NULL)
3954                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
3955         if (olddev!=NULL && olddev!=lc->video_conf.device){
3956                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
3957         }
3958         if ( linphone_core_ready(lc) && lc->video_conf.device){
3959                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
3960                 if (vd && strstr(vd,"Static picture")!=NULL){
3961                         vd=NULL;
3962                 }
3963                 lp_config_set_string(lc->config,"video","device",vd);
3964         }
3965         return 0;
3966 }
3967
3968 /**
3969  * Returns the name of the currently active video device.
3970  *
3971  * @param lc The LinphoneCore object
3972  * @ingroup media_parameters
3973 **/
3974 const char *linphone_core_get_video_device(const LinphoneCore *lc){
3975         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
3976         return NULL;
3977 }
3978
3979 #ifdef VIDEO_ENABLED
3980 static VideoStream * get_active_video_stream(LinphoneCore *lc){
3981         VideoStream *vs = NULL;
3982         LinphoneCall *call=linphone_core_get_current_call (lc);
3983         /* Select the video stream from the call in the first place */
3984         if (call && call->videostream) {
3985                 vs = call->videostream;
3986         }
3987         /* If not in call, select the video stream from the preview */
3988         if (vs == NULL && lc->previewstream) {
3989                 vs = lc->previewstream;
3990         }
3991         return vs;
3992 }
3993 #endif
3994
3995 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
3996 #ifdef VIDEO_ENABLED
3997         VideoStream *vs=get_active_video_stream(lc);
3998         /* If we have a video stream (either preview, either from call), we
3999                  have a source and it is using the static picture filter, then
4000                  force the filter to use that picture. */
4001         if (vs && vs->source) {
4002                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4003                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4004                                                                                                                 (void *)path);
4005                 }
4006         }
4007         /* Tell the static image filter to use that image from now on so
4008                  that the image will be used next time it has to be read */
4009         ms_static_image_set_default_image(path);
4010 #else
4011         ms_warning("Video support not compiled.");
4012 #endif
4013         return 0;
4014 }
4015
4016 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4017 #ifdef VIDEO_ENABLED
4018         VideoStream *vs = NULL;
4019
4020         vs=get_active_video_stream(lc);
4021
4022         /* If we have a video stream (either preview, either from call), we
4023                  have a source and it is using the static picture filter, then
4024                  force the filter to use that picture. */
4025         if (vs && vs->source) {
4026                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4027                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4028                 }
4029         }
4030 #else
4031         ms_warning("Video support not compiled.");
4032 #endif
4033         return 0;
4034 }
4035
4036 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4037 #ifdef VIDEO_ENABLED
4038         VideoStream *vs = NULL;
4039         vs=get_active_video_stream(lc);
4040         /* If we have a video stream (either preview, either from call), we
4041                  have a source and it is using the static picture filter, then
4042                  force the filter to use that picture. */
4043         if (vs && vs->source) {
4044                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4045
4046                         float fps;
4047
4048                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4049                         return fps;
4050                 }
4051         }
4052 #else
4053         ms_warning("Video support not compiled.");
4054 #endif
4055         return 0;
4056 }
4057
4058 /**
4059  * Returns the native window handle of the video window, casted as an unsigned long.
4060  *
4061  * @ingroup media_parameters
4062 **/
4063 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4064 #ifdef VIDEO_ENABLED
4065         LinphoneCall *call=linphone_core_get_current_call (lc);
4066         if (call && call->videostream)
4067                 return video_stream_get_native_window_id(call->videostream);
4068         if (lc->previewstream)
4069                 return video_stream_get_native_window_id(lc->previewstream);
4070 #endif
4071         return lc->video_window_id;
4072 }
4073
4074 /**@ingroup media_parameters
4075  * Set the native video window id where the video is to be displayed.
4076  * If not set the core will create its own window.
4077 **/
4078 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4079 #ifdef VIDEO_ENABLED
4080         LinphoneCall *call=linphone_core_get_current_call(lc);
4081         lc->video_window_id=id;
4082         if (call!=NULL && call->videostream){
4083                 video_stream_set_native_window_id(call->videostream,id);
4084         }
4085 #endif
4086 }
4087
4088 /**
4089  * Returns the native window handle of the video preview window, casted as an unsigned long.
4090  *
4091  * @ingroup media_parameters
4092 **/
4093 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4094 #ifdef VIDEO_ENABLED
4095         LinphoneCall *call=linphone_core_get_current_call (lc);
4096         if (call && call->videostream)
4097                 return video_stream_get_native_preview_window_id(call->videostream);
4098         if (lc->previewstream)
4099                 return video_preview_get_native_window_id(lc->previewstream);
4100 #endif
4101         return lc->preview_window_id;
4102 }
4103
4104 /**
4105  * @ingroup media_parameters
4106  * Set the native window id where the preview video (local camera) is to be displayed.
4107  * This has to be used in conjonction with linphone_core_use_preview_window().
4108  * If not set the core will create its own window.
4109 **/
4110 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4111         lc->preview_window_id=id;
4112 #ifdef VIDEO_ENABLED
4113         LinphoneCall *call=linphone_core_get_current_call(lc);
4114         if (call!=NULL && call->videostream){
4115                 video_stream_set_native_preview_window_id(call->videostream,id);
4116         }else if (lc->previewstream){
4117                 video_preview_set_native_window_id(lc->previewstream,id);
4118         }
4119 #endif
4120 }
4121
4122 /**
4123  * Can be used to disable video showing to free XV port
4124 **/
4125 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4126 #ifdef VIDEO_ENABLED
4127         ms_error("linphone_core_show_video %d", show);
4128         LinphoneCall *call=linphone_core_get_current_call(lc);
4129         if (call!=NULL && call->videostream){
4130                 video_stream_show_video(call->videostream,show);
4131         }
4132 #endif
4133 }
4134
4135 /**
4136  * Tells the core to use a separate window for local camera preview video, instead of
4137  * inserting local view within the remote video window.
4138  *
4139 **/
4140 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4141         lc->use_preview_window=yesno;
4142 }
4143 /**
4144  * @ingroup media_parameters
4145  *returns current device orientation
4146  */
4147 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4148         return lc->device_rotation;
4149 }
4150 /**
4151  * @ingroup media_parameters
4152  * Tells the core the device current orientation. This can be used by capture filters
4153  * on mobile devices to select between portrait/landscape mode and to produce properly
4154  * oriented images. The exact meaning of the value in rotation if left to each device
4155  * specific implementations.
4156  *@param lc  object.
4157  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4158  *
4159 **/
4160 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4161 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4162         lc->device_rotation = rotation;
4163 #ifdef VIDEO_ENABLED
4164         LinphoneCall *call=linphone_core_get_current_call(lc);
4165         if (call!=NULL && call->videostream){
4166                 video_stream_set_device_rotation(call->videostream,rotation);
4167         }
4168 #endif
4169 }
4170
4171 static MSVideoSizeDef supported_resolutions[]={
4172 #ifdef ENABLE_HD
4173         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4174         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4175 #endif
4176         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4177         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4178         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4179         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4180         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4181         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4182         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4183         {       {0,0}                   ,       NULL    }
4184 };
4185
4186 /**
4187  * Returns the zero terminated table of supported video resolutions.
4188  *
4189  * @ingroup media_parameters
4190 **/
4191 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4192         return supported_resolutions;
4193 }
4194
4195 static MSVideoSize video_size_get_by_name(const char *name){
4196         MSVideoSizeDef *pdef=supported_resolutions;
4197         MSVideoSize null_vsize={0,0};
4198         for(;pdef->name!=NULL;pdef++){
4199                 if (strcasecmp(name,pdef->name)==0){
4200                         return pdef->vsize;
4201                 }
4202         }
4203         ms_warning("Video resolution %s is not supported in linphone.",name);
4204         return null_vsize;
4205 }
4206
4207 static const char *video_size_get_name(MSVideoSize vsize){
4208         MSVideoSizeDef *pdef=supported_resolutions;
4209         for(;pdef->name!=NULL;pdef++){
4210                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4211                         return pdef->name;
4212                 }
4213         }
4214         return NULL;
4215 }
4216
4217 static bool_t video_size_supported(MSVideoSize vsize){
4218         if (video_size_get_name(vsize)) return TRUE;
4219         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4220         return FALSE;
4221 }
4222
4223 /**
4224  * Sets the preferred video size.
4225  *
4226  * @ingroup media_parameters
4227  * This applies only to the stream that is captured and sent to the remote party,
4228  * since we accept all standard video size on the receive path.
4229 **/
4230 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4231         if (video_size_supported(vsize)){
4232                 MSVideoSize oldvsize=lc->video_conf.vsize;
4233                 lc->video_conf.vsize=vsize;
4234                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4235                         toggle_video_preview(lc,FALSE);
4236                         toggle_video_preview(lc,TRUE);
4237                 }
4238                 if ( linphone_core_ready(lc))
4239                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4240         }
4241 }
4242
4243 /**
4244  * Sets the preferred video size by its name.
4245  *
4246  * @ingroup media_parameters
4247  * This is identical to linphone_core_set_preferred_video_size() except
4248  * that it takes the name of the video resolution as input.
4249  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4250 **/
4251 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4252         MSVideoSize vsize=video_size_get_by_name(name);
4253         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4254         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4255         else linphone_core_set_preferred_video_size(lc,default_vsize);
4256 }
4257
4258 /**
4259  * Returns the current preferred video size for sending.
4260  *
4261  * @ingroup media_parameters
4262 **/
4263 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4264         return lc->video_conf.vsize;
4265 }
4266
4267 /**
4268  * Ask the core to stream audio from and to files, instead of using the soundcard.
4269 **/
4270 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4271         lc->use_files=yesno;
4272 }
4273
4274 /**
4275  * Sets a wav file to be played when putting somebody on hold,
4276  * or when files are used instead of soundcards (see linphone_core_use_files()).
4277  *
4278  * The file must be a 16 bit linear wav file.
4279 **/
4280 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4281         LinphoneCall *call=linphone_core_get_current_call(lc);
4282         if (lc->play_file!=NULL){
4283                 ms_free(lc->play_file);
4284                 lc->play_file=NULL;
4285         }
4286         if (file!=NULL) {
4287                 lc->play_file=ms_strdup(file);
4288                 if (call && call->audiostream && call->audiostream->ticker)
4289                         audio_stream_play(call->audiostream,file);
4290         }
4291 }
4292
4293
4294 /**
4295  * Sets a wav file where incoming stream is to be recorded,
4296  * when files are used instead of soundcards (see linphone_core_use_files()).
4297  *
4298  * The file must be a 16 bit linear wav file.
4299 **/
4300 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4301         LinphoneCall *call=linphone_core_get_current_call(lc);
4302         if (lc->rec_file!=NULL){
4303                 ms_free(lc->rec_file);
4304                 lc->rec_file=NULL;
4305         }
4306         if (file!=NULL) {
4307                 lc->rec_file=ms_strdup(file);
4308                 if (call && call->audiostream)
4309                         audio_stream_record(call->audiostream,file);
4310         }
4311 }
4312
4313
4314 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4315         LinphoneCall *call=linphone_core_get_current_call (lc);
4316         AudioStream *stream=NULL;
4317         if (call){
4318                 stream=call->audiostream;
4319         }else if (linphone_core_is_in_conference(lc)){
4320                 stream=lc->conf_ctx.local_participant;
4321         }
4322         if (stream){
4323                 return stream->dtmfgen;
4324         }
4325         if (lc->ringstream==NULL){
4326                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4327                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4328                 if (ringcard == NULL)
4329                         return NULL;
4330
4331                 lc->ringstream=ring_start(NULL,0,ringcard);
4332                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4333                 lc->dmfs_playing_start_time=time(NULL);
4334         }else{
4335                 if (lc->dmfs_playing_start_time!=0)
4336                         lc->dmfs_playing_start_time=time(NULL);
4337         }
4338         return lc->ringstream->gendtmf;
4339 }
4340
4341 /**
4342  * @ingroup media_parameters
4343  * Plays a dtmf sound to the local user.
4344  * @param lc #LinphoneCore
4345  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4346  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4347 **/
4348 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4349         MSFilter *f=get_dtmf_gen(lc);
4350         if (f==NULL){
4351                 ms_error("No dtmf generator at this time !");
4352                 return;
4353         }
4354
4355         if (duration_ms>0)
4356                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4357         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4358 }
4359
4360 /**
4361  * @ingroup media_parameters
4362  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4363  * @param lc #LinphoneCore
4364 **/
4365 void linphone_core_play_tone(LinphoneCore *lc){
4366         MSFilter *f=get_dtmf_gen(lc);
4367         MSDtmfGenCustomTone def;
4368         if (f==NULL){
4369                 ms_error("No dtmf generator at this time !");
4370                 return;
4371         }
4372         def.duration=300;
4373         def.frequency=500;
4374         def.amplitude=1;
4375         def.interval=2000;
4376         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4377 }
4378
4379 /**
4380  * @ingroup media_parameters
4381  *
4382  * Stops playing a dtmf started by linphone_core_play_dtmf().
4383 **/
4384 void linphone_core_stop_dtmf(LinphoneCore *lc){
4385         MSFilter *f=get_dtmf_gen(lc);
4386         if (f!=NULL)
4387                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4388 }
4389
4390
4391
4392 /**
4393  * Retrieves the user pointer that was given to linphone_core_new()
4394  *
4395  * @ingroup initializing
4396 **/
4397 void *linphone_core_get_user_data(LinphoneCore *lc){
4398         return lc->data;
4399 }
4400
4401 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4402         lc->data=userdata;
4403 }
4404
4405 int linphone_core_get_mtu(const LinphoneCore *lc){
4406         return lc->net_conf.mtu;
4407 }
4408
4409 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4410         lc->net_conf.mtu=mtu;
4411         if (mtu>0){
4412                 if (mtu<500){
4413                         ms_error("MTU too small !");
4414                         mtu=500;
4415                 }
4416                 ms_set_mtu(mtu);
4417                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4418         }else ms_set_mtu(0);//use mediastreamer2 default value
4419 }
4420
4421 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4422         lc->wait_cb=cb;
4423         lc->wait_ctx=user_context;
4424 }
4425
4426 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4427         if (lc->wait_cb){
4428                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4429         }
4430 }
4431
4432 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4433         if (lc->wait_cb){
4434                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4435         }else{
4436 #ifdef WIN32
4437                 Sleep(50000);
4438 #else
4439                 usleep(50000);
4440 #endif
4441         }
4442 }
4443
4444 void linphone_core_stop_waiting(LinphoneCore *lc){
4445         if (lc->wait_cb){
4446                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4447         }
4448 }
4449
4450 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4451         lc->rtptf=factories;
4452 }
4453
4454 /**
4455  * Retrieve RTP statistics regarding current call.
4456  * @param local RTP statistics computed locally.
4457  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4458  *
4459  * @note Remote RTP statistics is not implemented yet.
4460  *
4461  * @returns 0 or -1 if no call is running.
4462 **/
4463
4464 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
4465         LinphoneCall *call=linphone_core_get_current_call (lc);
4466         if (call!=NULL){
4467                 if (call->audiostream!=NULL){
4468                         memset(remote,0,sizeof(*remote));
4469                         audio_stream_get_local_rtp_stats (call->audiostream,local);
4470                         return 0;
4471                 }
4472         }
4473         return -1;
4474 }
4475
4476 void net_config_uninit(LinphoneCore *lc)
4477 {
4478         net_config_t *config=&lc->net_conf;
4479
4480         if (config->stun_server!=NULL){
4481                 ms_free(lc->net_conf.stun_server);
4482         }
4483         if (config->nat_address!=NULL){
4484                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
4485                 ms_free(lc->net_conf.nat_address);
4486         }
4487         if (lc->net_conf.nat_address_ip !=NULL){
4488                 ms_free(lc->net_conf.nat_address_ip);
4489         }
4490         lp_config_set_int(lc->config,"net","mtu",config->mtu);
4491 }
4492
4493
4494 void sip_config_uninit(LinphoneCore *lc)
4495 {
4496         MSList *elem;
4497         int i;
4498         sip_config_t *config=&lc->sip_conf;
4499
4500         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
4501         lp_config_set_string(lc->config,"sip","contact",config->contact);
4502         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
4503         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
4504         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
4505         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
4506         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
4507
4508
4509
4510
4511         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
4512                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
4513                 linphone_proxy_config_edit(cfg);        /* to unregister */
4514         }
4515
4516         for (i=0;i<20;i++){
4517                 sal_iterate(lc->sal);
4518 #ifndef WIN32
4519                 usleep(100000);
4520 #else
4521                 Sleep(100);
4522 #endif
4523         }
4524
4525         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
4526         ms_list_free(config->proxies);
4527         config->proxies=NULL;
4528
4529         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
4530
4531         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
4532         ms_list_free(lc->auth_info);
4533         lc->auth_info=NULL;
4534
4535         sal_uninit(lc->sal);
4536         lc->sal=NULL;
4537
4538         if (lc->sip_conf.guessed_contact)
4539                 ms_free(lc->sip_conf.guessed_contact);
4540         if (config->contact)
4541                 ms_free(config->contact);
4542
4543 }
4544
4545 void rtp_config_uninit(LinphoneCore *lc)
4546 {
4547         rtp_config_t *config=&lc->rtp_conf;
4548         lp_config_set_int(lc->config,"rtp","audio_rtp_port",config->audio_rtp_port);
4549         lp_config_set_int(lc->config,"rtp","video_rtp_port",config->video_rtp_port);
4550         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
4551         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
4552         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
4553         lp_config_set_int(lc->config,"rtp","audio_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
4554         lp_config_set_int(lc->config,"rtp","video_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
4555 }
4556
4557 static void sound_config_uninit(LinphoneCore *lc)
4558 {
4559         sound_config_t *config=&lc->sound_conf;
4560         ms_free(config->cards);
4561
4562         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
4563
4564         if (config->local_ring) ms_free(config->local_ring);
4565         if (config->remote_ring) ms_free(config->remote_ring);
4566         ms_snd_card_manager_destroy();
4567 }
4568
4569 static void video_config_uninit(LinphoneCore *lc)
4570 {
4571         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
4572         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4573         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4574         if (lc->video_conf.cams)
4575                 ms_free(lc->video_conf.cams);
4576 }
4577
4578 void _linphone_core_codec_config_write(LinphoneCore *lc){
4579         if (linphone_core_ready(lc)){
4580                 PayloadType *pt;
4581                 codecs_config_t *config=&lc->codecs_conf;
4582                 MSList *node;
4583                 char key[50];
4584                 int index;
4585                 index=0;
4586                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
4587                         pt=(PayloadType*)(node->data);
4588                         sprintf(key,"audio_codec_%i",index);
4589                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4590                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4591                         lp_config_set_int(lc->config,key,"channels",pt->channels);
4592                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4593                         index++;
4594                 }
4595                 sprintf(key,"audio_codec_%i",index);
4596                 lp_config_clean_section (lc->config,key);
4597
4598                 index=0;
4599                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
4600                         pt=(PayloadType*)(node->data);
4601                         sprintf(key,"video_codec_%i",index);
4602                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4603                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4604                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4605                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
4606                         index++;
4607                 }
4608                 sprintf(key,"video_codec_%i",index);
4609                 lp_config_clean_section (lc->config,key);
4610         }
4611 }
4612
4613 static void codecs_config_uninit(LinphoneCore *lc)
4614 {
4615         _linphone_core_codec_config_write(lc);
4616         ms_list_free(lc->codecs_conf.audio_codecs);
4617         ms_list_free(lc->codecs_conf.video_codecs);
4618 }
4619
4620 void ui_config_uninit(LinphoneCore* lc)
4621 {
4622         if (lc->friends){
4623                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
4624                 ms_list_free(lc->friends);
4625                 lc->friends=NULL;
4626         }
4627 }
4628
4629 /**
4630  * Returns the LpConfig object used to manage the storage (config) file.
4631  *
4632  * @ingroup misc
4633  * The application can use the LpConfig object to insert its own private
4634  * sections and pairs of key=value in the configuration file.
4635  *
4636 **/
4637 LpConfig *linphone_core_get_config(LinphoneCore *lc){
4638         return lc->config;
4639 }
4640
4641 static void linphone_core_uninit(LinphoneCore *lc)
4642 {
4643         linphone_core_free_hooks(lc);
4644         while(lc->calls)
4645         {
4646                 LinphoneCall *the_call = lc->calls->data;
4647                 linphone_core_terminate_call(lc,the_call);
4648                 linphone_core_iterate(lc);
4649 #ifdef WIN32
4650                 Sleep(50000);
4651 #else
4652                 usleep(50000);
4653 #endif
4654         }
4655         if (lc->friends)
4656                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
4657         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
4658 #ifdef VIDEO_ENABLED
4659         if (lc->previewstream!=NULL){
4660                 video_preview_stop(lc->previewstream);
4661                 lc->previewstream=NULL;
4662         }
4663 #endif
4664         ms_event_queue_destroy(lc->msevq);
4665         lc->msevq=NULL;
4666         /* save all config */
4667         net_config_uninit(lc);
4668         rtp_config_uninit(lc);
4669         if (lc->ringstream) ring_stop(lc->ringstream);
4670         sound_config_uninit(lc);
4671         video_config_uninit(lc);
4672         codecs_config_uninit(lc);
4673         ui_config_uninit(lc);
4674         sip_config_uninit(lc);
4675         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
4676         lp_config_destroy(lc->config);
4677         lc->config = NULL; /* Mark the config as NULL to block further calls */
4678         sip_setup_unregister_all();
4679
4680         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4681         lc->call_logs=ms_list_free(lc->call_logs);
4682
4683         linphone_core_free_payload_types(lc);
4684         ortp_exit();
4685         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
4686 #ifdef TUNNEL_ENABLED
4687         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
4688 #endif
4689 }
4690
4691 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
4692         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
4693         // second get the list of available proxies
4694         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4695         for(;elem!=NULL;elem=elem->next){
4696                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4697                 if (linphone_proxy_config_register_enabled(cfg) ) {
4698                         if (!isReachable) {
4699                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
4700                         }else{
4701                                 cfg->commit=TRUE;
4702                         }
4703                 }
4704         }
4705         lc->netup_time=curtime;
4706         lc->network_reachable=isReachable;
4707         if(!isReachable) {
4708                 sal_reset_transports(lc->sal);
4709         }
4710 }
4711
4712 void linphone_core_refresh_registers(LinphoneCore* lc) {
4713         const MSList *elem;
4714         if (!lc->network_reachable) {
4715                 ms_warning("Refresh register operation not available (network unreachable)");
4716                 return;
4717         }
4718         elem=linphone_core_get_proxy_config_list(lc);
4719         for(;elem!=NULL;elem=elem->next){
4720                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4721                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
4722                         linphone_proxy_config_refresh_register(cfg);
4723                 }
4724         }
4725 }
4726
4727 void __linphone_core_invalidate_registers(LinphoneCore* lc){
4728         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4729         for(;elem!=NULL;elem=elem->next){
4730                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4731                 if (linphone_proxy_config_register_enabled(cfg)) {
4732                         linphone_proxy_config_edit(cfg);
4733                         linphone_proxy_config_done(cfg);
4734                 }
4735         }
4736 }
4737
4738 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
4739         //first disable automatic mode
4740         if (lc->auto_net_state_mon) {
4741                 ms_message("Disabling automatic network state monitoring");
4742                 lc->auto_net_state_mon=FALSE;
4743         }
4744         set_network_reachable(lc,isReachable, ms_time(NULL));
4745 }
4746
4747 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
4748         return lc->network_reachable;
4749 }
4750 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
4751         return sal_get_socket(lc->sal);
4752 }
4753 /**
4754  * Destroys a LinphoneCore
4755  *
4756  * @ingroup initializing
4757 **/
4758 void linphone_core_destroy(LinphoneCore *lc){
4759         linphone_core_uninit(lc);
4760         ms_free(lc);
4761 }
4762 /**
4763  * Get the number of Call
4764  *
4765  * @ingroup call_control
4766 **/
4767 int linphone_core_get_calls_nb(const LinphoneCore *lc){
4768         return  ms_list_size(lc->calls);;
4769 }
4770
4771 /**
4772  * Check if we do not have exceed the number of simultaneous call
4773  *
4774  * @ingroup call_control
4775 **/
4776 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
4777 {
4778         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
4779                 return TRUE;
4780         ms_message("Maximum amount of simultaneous calls reached !");
4781         return FALSE;
4782 }
4783
4784
4785 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
4786 {
4787         if(linphone_core_can_we_add_call(lc))
4788         {
4789                 lc->calls = ms_list_append(lc->calls,call);
4790                 return 0;
4791         }
4792         return -1;
4793 }
4794
4795 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
4796 {
4797         MSList *it;
4798         MSList *the_calls = lc->calls;
4799
4800         it=ms_list_find(the_calls,call);
4801         if (it)
4802         {
4803                 the_calls = ms_list_remove_link(the_calls,it);
4804         }
4805         else
4806         {
4807                 ms_warning("could not find the call into the list\n");
4808                 return -1;
4809         }
4810         lc->calls = the_calls;
4811         return 0;
4812 }
4813
4814 /**
4815  * Specifiies a ring back tone to be played to far end during incoming calls.
4816 **/
4817 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
4818         if (lc->sound_conf.ringback_tone){
4819                 ms_free(lc->sound_conf.ringback_tone);
4820                 lc->sound_conf.ringback_tone=NULL;
4821         }
4822         if (file)
4823                 lc->sound_conf.ringback_tone=ms_strdup(file);
4824 }
4825
4826 /**
4827  * Returns the ring back tone played to far end during incoming calls.
4828 **/
4829 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
4830         return lc->sound_conf.ringback_tone;
4831 }
4832
4833 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
4834         const MSList *elem;
4835         for(elem=from;elem!=NULL;elem=elem->next){
4836                 PayloadType *pt=(PayloadType*)elem->data;
4837                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
4838                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
4839                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
4840                         return pt;
4841                 }
4842         }
4843         return NULL;
4844 }
4845
4846
4847 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
4848         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
4849         if (result)  {
4850                 return result;
4851         } else {
4852                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
4853                 if (result) {
4854                         return result;
4855                 }
4856         }
4857         /*not found*/
4858         return NULL;
4859 }
4860
4861 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
4862         switch(gs){
4863                 case LinphoneGlobalOff:
4864                         return "LinphoneGlobalOff";
4865                 break;
4866                 case LinphoneGlobalOn:
4867                         return "LinphoneGlobalOn";
4868                 break;
4869                 case LinphoneGlobalStartup:
4870                         return "LinphoneGlobalStartup";
4871                 break;
4872                 case LinphoneGlobalShutdown:
4873                         return "LinphoneGlobalShutdown";
4874                 break;
4875         }
4876         return NULL;
4877 }
4878
4879 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
4880         return lc->state;
4881 }
4882
4883 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
4884         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
4885         linphone_core_init_default_params(lc, p);
4886         return p;
4887 }
4888
4889 const char *linphone_reason_to_string(LinphoneReason err){
4890         switch(err){
4891                 case LinphoneReasonNone:
4892                         return "No error";
4893                 case LinphoneReasonNoResponse:
4894                         return "No response";
4895                 case LinphoneReasonBadCredentials:
4896                         return "Bad credentials";
4897                 case LinphoneReasonDeclined:
4898                         return "Call declined";
4899                 case LinphoneReasonNotFound:
4900                         return "User not found";
4901                 case LinphoneReasonNotAnswered:
4902                         return "Not answered";
4903         }
4904         return "unknown error";
4905 }
4906
4907 const char *linphone_error_to_string(LinphoneReason err){
4908         return linphone_reason_to_string(err);
4909 }
4910 /**
4911  * Enables signaling keep alive
4912  */
4913 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
4914         if (enable > 0) {
4915                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
4916         } else {
4917                 sal_set_keepalive_period(lc->sal,0);
4918         }
4919 }
4920 /**
4921  * Is signaling keep alive enabled
4922  */
4923 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
4924         return sal_get_keepalive_period(lc->sal) > 0;
4925 }
4926
4927 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
4928         get_dtmf_gen(lc); /*make sure ring stream is started*/
4929         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
4930 }
4931
4932 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
4933         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
4934                 ring_stop(lc->ringstream);
4935                 lc->ringstream=NULL;
4936         }
4937 }
4938
4939 int linphone_core_get_max_calls(LinphoneCore *lc) {
4940         return lc->max_calls;
4941 }
4942 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
4943         lc->max_calls=max;
4944 }
4945
4946 typedef struct Hook{
4947         LinphoneCoreIterateHook fun;
4948         void *data;
4949 }Hook;
4950
4951 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
4952         Hook *h=ms_new(Hook,1);
4953         h->fun=hook;
4954         h->data=hook_data;
4955         return h;
4956 }
4957
4958 static void hook_invoke(Hook *h){
4959         h->fun(h->data);
4960 }
4961
4962 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
4963         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
4964 }
4965
4966 static void linphone_core_run_hooks(LinphoneCore *lc){
4967         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
4968 }
4969
4970 static void linphone_core_free_hooks(LinphoneCore *lc){
4971         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
4972         ms_list_free(lc->hooks);
4973         lc->hooks=NULL;
4974 }
4975
4976 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
4977         MSList *elem;
4978         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
4979                 Hook *h=(Hook*)elem->data;
4980                 if (h->fun==hook && h->data==hook_data){
4981                         ms_list_remove_link(lc->hooks,elem);
4982                         ms_free(h);
4983                         return;
4984                 }
4985         }
4986         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
4987 }
4988
4989 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
4990         if (lc->zrtp_secrets_cache != NULL) {
4991                 ms_free(lc->zrtp_secrets_cache);
4992         }
4993         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
4994 }
4995
4996 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
4997         if (uri == NULL) return NULL;
4998         MSList *calls=lc->calls;
4999         while(calls) {
5000                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5001                 calls=calls->next;
5002                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5003                 char *current_uri=linphone_address_as_string_uri_only(address);
5004                 if (strcmp(uri,current_uri)==0) {
5005                         ms_free(current_uri);
5006                         return c;
5007                 } else {
5008                         ms_free(current_uri);
5009                 }
5010         }
5011         return NULL;
5012 }
5013
5014
5015 /**
5016  * Check if a call will need the sound resources.
5017  *
5018  * @ingroup call_control
5019  * @param lc The LinphoneCore
5020 **/
5021 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5022         MSList *calls=lc->calls;
5023         while(calls) {
5024                 LinphoneCall *c=(LinphoneCall*)calls->data;
5025                 calls=calls->next;
5026                 switch (c->state) {
5027                         case LinphoneCallOutgoingInit:
5028                         case LinphoneCallOutgoingProgress:
5029                         case LinphoneCallOutgoingRinging:
5030                         case LinphoneCallOutgoingEarlyMedia:
5031                         case LinphoneCallConnected:
5032                         case LinphoneCallRefered:
5033                         case LinphoneCallIncomingEarlyMedia:
5034                         case LinphoneCallUpdating:
5035                                 return TRUE;
5036                         default:
5037                                 break;
5038                 }
5039         }
5040         return FALSE;
5041 }
5042
5043 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5044         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5045 }
5046
5047 /**
5048  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5049 **/
5050 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5051         switch(menc){
5052                 case LinphoneMediaEncryptionSRTP:
5053                         return ortp_srtp_supported();
5054                 case LinphoneMediaEncryptionZRTP:
5055                         return ortp_zrtp_available();
5056                 case LinphoneMediaEncryptionNone:
5057                         return TRUE;
5058         }
5059         return FALSE;
5060 }
5061
5062 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5063         const char *type="none";
5064         int ret=0;
5065         if (menc == LinphoneMediaEncryptionSRTP){
5066                 if (!ortp_srtp_supported()){
5067                         ms_warning("SRTP not supported by library.");
5068                         type="none";
5069                         ret=-1;
5070                 }else type="srtp";
5071         }else if (menc == LinphoneMediaEncryptionZRTP){
5072                 if (!ortp_zrtp_available()){
5073                         ms_warning("ZRTP not supported by library.");
5074                         type="none";
5075                         ret=-1;
5076                 }else type="zrtp";
5077         }
5078         lp_config_set_string(lc->config,"sip","media_encryption",type);
5079         return ret;
5080 }
5081
5082 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5083         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5084
5085         if (menc == NULL)
5086                 return LinphoneMediaEncryptionNone;
5087         else if (strcmp(menc, "srtp")==0)
5088                 return LinphoneMediaEncryptionSRTP;
5089         else if (strcmp(menc, "zrtp")==0)
5090                 return LinphoneMediaEncryptionZRTP;
5091         else
5092                 return LinphoneMediaEncryptionNone;
5093 }
5094
5095 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5096         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5097 }
5098
5099 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5100         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5101 }
5102
5103 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5104         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5105         params->media_encryption=linphone_core_get_media_encryption(lc);
5106         params->in_conference=FALSE;
5107 }
5108
5109 void linphone_call_zoom_video(LinphoneCall* call, float zoom_factor, float* cx, float* cy) {
5110         VideoStream* vstream = call->videostream;
5111         if (vstream) {
5112                 float zoom[3];
5113
5114                 if (zoom_factor < 1)
5115                         zoom_factor = 1;
5116                 float halfsize = 0.5 * 1.0 / zoom_factor;
5117
5118                 if ((*cx - halfsize) < 0)
5119                         *cx = 0 + halfsize;
5120                 if ((*cx + halfsize) > 1)
5121                         *cx = 1 - halfsize;
5122                 if ((*cy - halfsize) < 0)
5123                         *cy = 0 + halfsize;
5124                 if ((*cy + halfsize) > 1)
5125                         *cy = 1 - halfsize;
5126
5127                 zoom[0] = zoom_factor;
5128                 zoom[1] = *cx;
5129                 zoom[2] = *cy;
5130                 ms_filter_call_method(vstream->output, MS_VIDEO_DISPLAY_ZOOM, &zoom);
5131         }else ms_warning("Could not apply zoom: video output wasn't activated.");
5132 }
5133
5134 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5135         if (lc->device_id) ms_free(lc->device_id);
5136         lc->device_id=ms_strdup(device_id);
5137 }
5138 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5139         return lc->device_id;
5140 }
5141
5142 /**
5143  * Set the DSCP field for SIP signaling channel.
5144  *
5145  * @ingroup network_parameters
5146  * * The DSCP defines the quality of service in IP packets.
5147  *
5148 **/
5149 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5150         sal_set_dscp(lc->sal,dscp);
5151         if (linphone_core_ready(lc))
5152                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5153 }
5154
5155 /**
5156  * Get the DSCP field for SIP signaling channel.
5157  *
5158  * @ingroup network_parameters
5159  * * The DSCP defines the quality of service in IP packets.
5160  *
5161 **/
5162 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5163         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5164 }
5165
5166 /**
5167  * Set the DSCP field for outgoing audio streams.
5168  *
5169  * @ingroup network_parameters
5170  * The DSCP defines the quality of service in IP packets.
5171  *
5172 **/
5173 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5174         if (linphone_core_ready(lc))
5175                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5176 }
5177
5178 /**
5179  * Get the DSCP field for outgoing audio streams.
5180  *
5181  * @ingroup network_parameters
5182  * The DSCP defines the quality of service in IP packets.
5183  *
5184 **/
5185 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5186         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5187 }
5188
5189 /**
5190  * Set the DSCP field for outgoing video streams.
5191  *
5192  * @ingroup network_parameters
5193  * The DSCP defines the quality of service in IP packets.
5194  *
5195 **/
5196 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5197         if (linphone_core_ready(lc))
5198                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5199
5200 }
5201
5202 /**
5203  * Get the DSCP field for outgoing video streams.
5204  *
5205  * @ingroup network_parameters
5206  * The DSCP defines the quality of service in IP packets.
5207  *
5208 **/
5209 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5210         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5211 }