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 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1600         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1601         ms_warning("%s",msg);
1602         if (lc->vtable.display_warning)
1603                 lc->vtable.display_warning(lc,msg);
1604         ms_free(msg);
1605 }
1606
1607 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1608         return
1609                 tr2->udp_port==tr1->udp_port &&
1610                 tr2->tcp_port==tr1->tcp_port &&
1611                 tr2->dtls_port==tr1->dtls_port &&
1612                 tr2->tls_port==tr1->tls_port;
1613 }
1614
1615 static int apply_transports(LinphoneCore *lc){
1616         Sal *sal=lc->sal;
1617         const char *anyaddr;
1618         LCSipTransports *tr=&lc->sip_conf.transports;
1619
1620         /*first of all invalidate all current registrations so that we can register again with new transports*/
1621         __linphone_core_invalidate_registers(lc);
1622
1623         if (lc->sip_conf.ipv6_enabled)
1624                 anyaddr="::0";
1625         else
1626                 anyaddr="0.0.0.0";
1627
1628         sal_unlisten_ports(sal);
1629         if (tr->udp_port>0){
1630                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1631                         transport_error(lc,"udp",tr->udp_port);
1632                         return -1;
1633                 }
1634         }
1635         if (tr->tcp_port>0){
1636                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1637                         transport_error(lc,"tcp",tr->tcp_port);
1638                 }
1639         }
1640         if (tr->tls_port>0){
1641                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1642                         transport_error(lc,"tls",tr->tls_port);
1643                 }
1644         }
1645         apply_user_agent(lc);
1646         return 0;
1647 }
1648
1649 /**
1650  * Sets the ports to be used for each of transport (UDP or TCP)
1651  *
1652  * A zero value port for a given transport means the transport
1653  * is not used.
1654  *
1655  * @ingroup network_parameters
1656 **/
1657 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1658
1659         if (transports_unchanged(tr,&lc->sip_conf.transports))
1660                 return 0;
1661         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1662
1663         if (linphone_core_ready(lc)){
1664                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1665                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1666                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1667         }
1668
1669         if (lc->sal==NULL) return 0;
1670         return apply_transports(lc);
1671 }
1672
1673 /**
1674  * Retrieves the ports used for each transport (udp, tcp).
1675  * A zero value port for a given transport means the transport
1676  * is not used.
1677  * @ingroup network_parameters
1678 **/
1679 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1680         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1681         return 0;
1682 }
1683
1684 /**
1685  * Sets the UDP port to be used by SIP.
1686  *
1687  * Deprecated: use linphone_core_set_sip_transports() instead.
1688  * @ingroup network_parameters
1689 **/
1690 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1691 {
1692         LCSipTransports tr;
1693         memset(&tr,0,sizeof(tr));
1694         tr.udp_port=port;
1695         linphone_core_set_sip_transports (lc,&tr);
1696 }
1697
1698 /**
1699  * Returns TRUE if IPv6 is enabled.
1700  *
1701  * @ingroup network_parameters
1702  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1703 **/
1704 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1705         return lc->sip_conf.ipv6_enabled;
1706 }
1707
1708 /**
1709  * Turns IPv6 support on or off.
1710  *
1711  * @ingroup network_parameters
1712  *
1713  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1714  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1715  * By default IPv6 support is off.
1716 **/
1717 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1718         if (lc->sip_conf.ipv6_enabled!=val){
1719                 lc->sip_conf.ipv6_enabled=val;
1720                 if (lc->sal){
1721                         /* we need to restart eXosip */
1722                         apply_transports(lc);
1723                 }
1724         }
1725 }
1726
1727
1728 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1729         static time_t last_check=0;
1730         static bool_t last_status=FALSE;
1731         char result[LINPHONE_IPADDR_SIZE];
1732         bool_t new_status=last_status;
1733
1734         /* only do the network up checking every five seconds */
1735         if (last_check==0 || (curtime-last_check)>=5){
1736                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1737                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1738                         new_status=TRUE;
1739                 }else new_status=FALSE;
1740                 last_check=curtime;
1741                 if (new_status!=last_status) {
1742                         if (new_status){
1743                                 ms_message("New local ip address is %s",result);
1744                         }
1745                         set_network_reachable(lc,new_status, curtime);
1746                         last_status=new_status;
1747                 }
1748         }
1749 }
1750
1751 static void proxy_update(LinphoneCore *lc){
1752         MSList *elem,*next;
1753         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1754         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1755                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1756                 next=elem->next;
1757                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1758                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1759                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1760                         linphone_proxy_config_destroy(cfg);
1761                 }
1762         }
1763 }
1764
1765 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1766         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1767         if (lf!=NULL){
1768                 lf->info=info;
1769                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1770                 if (lc->vtable.buddy_info_updated)
1771                         lc->vtable.buddy_info_updated(lc,lf);
1772         }else{
1773                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1774         }
1775 }
1776
1777 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1778         MSList *elem;
1779         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1780         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1781                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1782                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1783                         if (req->results!=NULL){
1784                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1785                                 ms_list_free(req->results);
1786                                 req->results=NULL;
1787                                 assign_buddy_info(lc,i);
1788                         }
1789                         sip_setup_context_buddy_lookup_free(ctx,req);
1790                         elem->data=NULL;
1791                 }
1792         }
1793         /*purge completed requests */
1794         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1795                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1796         }
1797 }
1798
1799 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1800         const MSList *elem;
1801         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1802         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1803                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1804                 if (lf->info==NULL){
1805                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1806                                 if (linphone_address_get_username(lf->uri)!=NULL){
1807                                         BuddyLookupRequest *req;
1808                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1809                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1810                                         buddy_lookup_request_set_key(req,tmp);
1811                                         buddy_lookup_request_set_max_results(req,1);
1812                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1813                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
1814                                         ms_free(tmp);
1815                                 }
1816                         }
1817                 }
1818         }
1819 }
1820
1821 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
1822         LinphoneProxyConfig *cfg=NULL;
1823         linphone_core_get_default_proxy(lc,&cfg);
1824         if (cfg){
1825                 if (lc->bl_refresh){
1826                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1827                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
1828                                 linphone_core_grab_buddy_infos(lc,cfg);
1829                                 lc->bl_refresh=FALSE;
1830                         }
1831                 }
1832                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
1833         }
1834 }
1835
1836 /**
1837  * Main loop function. It is crucial that your application call it periodically.
1838  *
1839  * @ingroup initializing
1840  * linphone_core_iterate() performs various backgrounds tasks:
1841  * - receiving of SIP messages
1842  * - handles timers and timeout
1843  * - performs registration to proxies
1844  * - authentication retries
1845  * The application MUST call this function periodically, in its main loop.
1846  * Be careful that this function must be called from the same thread as
1847  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
1848  * serialized with a mutex.
1849 **/
1850 void linphone_core_iterate(LinphoneCore *lc){
1851         MSList *calls;
1852         LinphoneCall *call;
1853         time_t curtime=time(NULL);
1854         int elapsed;
1855         bool_t one_second_elapsed=FALSE;
1856
1857         if (curtime-lc->prevtime>=1){
1858                 lc->prevtime=curtime;
1859                 one_second_elapsed=TRUE;
1860         }
1861
1862         if (lc->ecc!=NULL){
1863                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
1864                 if (ecs!=LinphoneEcCalibratorInProgress){
1865                         if (lc->ecc->cb)
1866                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
1867                         if (ecs==LinphoneEcCalibratorDone){
1868                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
1869                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-(len/2),0));
1870                         }
1871                         ec_calibrator_destroy(lc->ecc);
1872                         lc->ecc=NULL;
1873                 }
1874         }
1875
1876         if (lc->preview_finished){
1877                 lc->preview_finished=0;
1878                 ring_stop(lc->ringstream);
1879                 lc->ringstream=NULL;
1880                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
1881         }
1882
1883         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
1884             && (curtime-lc->dmfs_playing_start_time)>5){
1885                 ring_stop(lc->ringstream);
1886                 lc->ringstream=NULL;
1887                 lc->dmfs_playing_start_time=0;
1888         }
1889
1890         sal_iterate(lc->sal);
1891         if (lc->msevq) ms_event_queue_pump(lc->msevq);
1892         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
1893
1894         proxy_update(lc);
1895
1896         //we have to iterate for each call
1897         calls= lc->calls;
1898         while(calls!= NULL){
1899                 call = (LinphoneCall *)calls->data;
1900                  /* get immediately a reference to next one in case the one
1901                  we are going to examine is destroy and removed during
1902                  linphone_core_start_invite() */
1903                 calls=calls->next;
1904                 linphone_call_background_tasks(call,one_second_elapsed);
1905                 if (call->state==LinphoneCallOutgoingInit && (curtime-call->start_time>=2)){
1906                         /*start the call even if the OPTIONS reply did not arrive*/
1907                         if (call->ice_session != NULL) {
1908                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
1909                                                 ,linphone_core_get_stun_server(lc));
1910                                 linphone_call_delete_ice_session(call);
1911                                 linphone_call_stop_media_streams(call);
1912                         }
1913                         linphone_core_start_invite(lc,call,NULL);
1914                 }
1915                 if (call->state==LinphoneCallIncomingReceived){
1916                         elapsed=curtime-call->start_time;
1917                         ms_message("incoming call ringing for %i seconds",elapsed);
1918                         if (elapsed>lc->sip_conf.inc_timeout){
1919                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
1920                                 call->log->status=LinphoneCallMissed;
1921                                 call->reason=LinphoneReasonNotAnswered;
1922                                 linphone_core_terminate_call(lc,call);
1923                         }
1924                 }
1925         }
1926
1927         if (linphone_core_video_preview_enabled(lc)){
1928                 if (lc->previewstream==NULL && lc->calls==NULL)
1929                         toggle_video_preview(lc,TRUE);
1930 #ifdef VIDEO_ENABLED
1931                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
1932 #endif
1933         }else{
1934                 if (lc->previewstream!=NULL)
1935                         toggle_video_preview(lc,FALSE);
1936         }
1937
1938         linphone_core_run_hooks(lc);
1939         linphone_core_do_plugin_tasks(lc);
1940
1941         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
1942             (curtime-lc->netup_time)>3){
1943                 linphone_core_send_initial_subscribes(lc);
1944                 lc->initial_subscribes_sent=TRUE;
1945         }
1946
1947         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
1948                 lp_config_sync(lc->config);
1949         }
1950 }
1951
1952 /**
1953  * Interpret a call destination as supplied by the user, and returns a fully qualified
1954  * LinphoneAddress.
1955  *
1956  * A sip address should look like DisplayName <sip:username@domain:port> .
1957  * Basically this function performs the following tasks
1958  * - if a phone number is entered, prepend country prefix of the default proxy
1959  *   configuration, eventually escape the '+' by 00.
1960  * - if no domain part is supplied, append the domain name of the default proxy
1961  * - if no sip: is present, prepend it
1962  *
1963  * The result is a syntaxically correct SIP address.
1964 **/
1965
1966 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
1967         enum_lookup_res_t *enumres=NULL;
1968         char *enum_domain=NULL;
1969         LinphoneProxyConfig *proxy=lc->default_proxy;;
1970         char *tmpurl;
1971         LinphoneAddress *uri;
1972
1973         if (is_enum(url,&enum_domain)){
1974                 if (lc->vtable.display_status!=NULL)
1975                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
1976                 if (enum_lookup(enum_domain,&enumres)<0){
1977                         if (lc->vtable.display_status!=NULL)
1978                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
1979                         ms_free(enum_domain);
1980                         return NULL;
1981                 }
1982                 ms_free(enum_domain);
1983                 tmpurl=enumres->sip_address[0];
1984                 uri=linphone_address_new(tmpurl);
1985                 enum_lookup_res_free(enumres);
1986                 return uri;
1987         }
1988         /* check if we have a "sip:" */
1989         if (strstr(url,"sip:")==NULL){
1990                 /* this doesn't look like a true sip uri */
1991                 if (strchr(url,'@')!=NULL){
1992                         /* seems like sip: is missing !*/
1993                         tmpurl=ms_strdup_printf("sip:%s",url);
1994                         uri=linphone_address_new(tmpurl);
1995                         ms_free(tmpurl);
1996                         if (uri){
1997                                 return uri;
1998                         }
1999                 }
2000
2001                 if (proxy!=NULL){
2002                         /* append the proxy domain suffix */
2003                         const char *identity=linphone_proxy_config_get_identity(proxy);
2004                         char normalized_username[128];
2005                         uri=linphone_address_new(identity);
2006                         if (uri==NULL){
2007                                 return NULL;
2008                         }
2009                         linphone_address_set_display_name(uri,NULL);
2010                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2011                                                                 sizeof(normalized_username));
2012                         linphone_address_set_username(uri,normalized_username);
2013                         return uri;
2014                 }else return NULL;
2015         }
2016         uri=linphone_address_new(url);
2017         if (uri!=NULL){
2018                 return uri;
2019         }
2020         /* else we could not do anything with url given by user, so display an error */
2021         if (lc->vtable.display_warning!=NULL){
2022                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2023         }
2024         return NULL;
2025 }
2026
2027 /**
2028  * Returns the default identity SIP address.
2029  *
2030  * @ingroup proxies
2031  * This is an helper function:
2032  *
2033  * If no default proxy is set, this will return the primary contact (
2034  * see linphone_core_get_primary_contact() ). If a default proxy is set
2035  * it returns the registered identity on the proxy.
2036 **/
2037 const char * linphone_core_get_identity(LinphoneCore *lc){
2038         LinphoneProxyConfig *proxy=NULL;
2039         const char *from;
2040         linphone_core_get_default_proxy(lc,&proxy);
2041         if (proxy!=NULL) {
2042                 from=linphone_proxy_config_get_identity(proxy);
2043         }else from=linphone_core_get_primary_contact(lc);
2044         return from;
2045 }
2046
2047 const char * linphone_core_get_route(LinphoneCore *lc){
2048         LinphoneProxyConfig *proxy=NULL;
2049         const char *route=NULL;
2050         linphone_core_get_default_proxy(lc,&proxy);
2051         if (proxy!=NULL) {
2052                 route=linphone_proxy_config_get_route(proxy);
2053         }
2054         return route;
2055 }
2056
2057 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2058         if (call->refer_pending){
2059                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2060                 LinphoneCall *newcall;
2061                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2062                 cp->referer=call;
2063                 ms_message("Starting new call to refered address %s",call->refer_to);
2064                 call->refer_pending=FALSE;
2065                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2066                 linphone_call_params_destroy(cp);
2067                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2068         }
2069 }
2070
2071 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2072         if (referer->op!=NULL){
2073                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2074         }
2075 }
2076
2077 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2078         const MSList *elem;
2079         LinphoneProxyConfig *found_cfg=NULL;
2080         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2081
2082         /*always prefer the default proxy if it is matching the destination uri*/
2083         if (default_cfg){
2084                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2085                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2086                         return default_cfg;
2087         }
2088
2089         /*otherwise iterate through the other proxy config and return the first matching*/
2090         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2091                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2092                 const char *domain=linphone_proxy_config_get_domain(cfg);
2093                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2094                         found_cfg=cfg;
2095                         break;
2096                 }
2097         }
2098         return found_cfg;
2099 }
2100
2101 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2102         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2103         if (cfg==NULL)
2104                 linphone_core_get_default_proxy (lc,&cfg);
2105         if (cfg!=NULL){
2106                 if (route) *route=linphone_proxy_config_get_route(cfg);
2107                 return linphone_proxy_config_get_identity (cfg);
2108         }
2109         return linphone_core_get_primary_contact (lc);
2110 }
2111
2112 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2113         LinphoneAddress *ctt;
2114         const char *localip=call->localip;
2115
2116         /* first use user's supplied ip address if asked*/
2117         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2118                 ctt=linphone_core_get_primary_contact_parsed(lc);
2119                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2120                         linphone_core_get_nat_address_resolved(lc));
2121         }
2122
2123         /* if already choosed, don't change it */
2124         if (call->op && sal_op_get_contact(call->op)!=NULL){
2125                 return NULL;
2126         }
2127         /* if the ping OPTIONS request succeeded use the contact guessed from the
2128          received, rport*/
2129         if (call->ping_op){
2130                 const char *guessed=sal_op_get_contact(call->ping_op);
2131                 if (guessed){
2132                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2133                         return ms_strdup(guessed);
2134                 }
2135         }
2136
2137         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2138         if (dest_proxy && dest_proxy->op){
2139                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2140                 if (fixed_contact) {
2141                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2142                         return ms_strdup(fixed_contact);
2143                 }
2144         }
2145
2146         ctt=linphone_core_get_primary_contact_parsed(lc);
2147
2148         if (ctt!=NULL){
2149                 char *ret;
2150                 /*otherwise use supllied localip*/
2151                 linphone_address_set_domain(ctt,localip);
2152                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2153                 ret=linphone_address_as_string_uri_only(ctt);
2154                 linphone_address_destroy(ctt);
2155                 ms_message("Contact has been fixed using local ip to %s",ret);
2156                 return ret;
2157         }
2158         return NULL;
2159 }
2160
2161 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2162         bool_t ice_ready = FALSE;
2163         bool_t ping_ready = FALSE;
2164
2165         if (call->ice_session != NULL) {
2166                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2167         } else {
2168                 ice_ready = TRUE;
2169         }
2170         if (call->ping_op != NULL) {
2171                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2172         } else {
2173                 ping_ready = TRUE;
2174         }
2175
2176         if ((ice_ready == TRUE) && (ping_ready == TRUE)) {
2177                 return linphone_core_start_invite(lc, call, dest_proxy);
2178         }
2179         return 0;
2180 }
2181
2182 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2183         int err;
2184         char *contact;
2185         char *real_url,*barmsg;
2186         char *from;
2187
2188         /*try to be best-effort in giving real local or routable contact address */
2189         contact=get_fixed_contact(lc,call,dest_proxy);
2190         if (contact){
2191                 sal_op_set_contact(call->op, contact);
2192                 ms_free(contact);
2193         }
2194         linphone_core_stop_dtmf_stream(lc);
2195         linphone_call_init_media_streams(call);
2196         if (lc->ringstream==NULL)
2197                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2198         call->localdesc=create_local_media_description(lc,call);
2199         if (!lc->sip_conf.sdp_200_ack){
2200                 call->media_pending=TRUE;
2201                 sal_call_set_local_media_description(call->op,call->localdesc);
2202         }
2203         real_url=linphone_address_as_string(call->log->to);
2204         from=linphone_address_as_string(call->log->from);
2205         err=sal_call(call->op,from,real_url);
2206
2207         if (lc->sip_conf.sdp_200_ack){
2208                 call->media_pending=TRUE;
2209                 sal_call_set_local_media_description(call->op,call->localdesc);
2210         }
2211         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2212         if (lc->vtable.display_status!=NULL)
2213                 lc->vtable.display_status(lc,barmsg);
2214         ms_free(barmsg);
2215
2216         if (err<0){
2217                 if (lc->vtable.display_status!=NULL)
2218                         lc->vtable.display_status(lc,_("Could not call"));
2219                 linphone_call_stop_media_streams(call);
2220                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2221         }else {
2222                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2223         }
2224         ms_free(real_url);
2225         ms_free(from);
2226         return err;
2227 }
2228
2229 /**
2230  * Initiates an outgoing call
2231  *
2232  * @ingroup call_control
2233  * @param lc the LinphoneCore object
2234  * @param url the destination of the call (sip address, or phone number).
2235  *
2236  * The application doesn't own a reference to the returned LinphoneCall object.
2237  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2238  *
2239  * @return a LinphoneCall object or NULL in case of failure
2240 **/
2241 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2242         LinphoneCall *call;
2243         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2244         p->has_video &= !!lc->video_policy.automatically_initiate;
2245         call=linphone_core_invite_with_params(lc,url,p);
2246         linphone_call_params_destroy(p);
2247         return call;
2248 }
2249
2250
2251 /**
2252  * Initiates an outgoing call according to supplied call parameters
2253  *
2254  * @ingroup call_control
2255  * @param lc the LinphoneCore object
2256  * @param url the destination of the call (sip address, or phone number).
2257  * @param p call parameters
2258  *
2259  * The application doesn't own a reference to the returned LinphoneCall object.
2260  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2261  *
2262  * @return a LinphoneCall object or NULL in case of failure
2263 **/
2264 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2265         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2266         if (addr){
2267                 LinphoneCall *call;
2268                 call=linphone_core_invite_address_with_params(lc,addr,p);
2269                 linphone_address_destroy(addr);
2270                 return call;
2271         }
2272         return NULL;
2273 }
2274
2275 /**
2276  * Initiates an outgoing call given a destination LinphoneAddress
2277  *
2278  * @ingroup call_control
2279  * @param lc the LinphoneCore object
2280  * @param addr the destination of the call (sip address).
2281  *
2282  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2283  * created by linphone_core_interpret_url().
2284  * The application doesn't own a reference to the returned LinphoneCall object.
2285  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2286  *
2287  * @return a LinphoneCall object or NULL in case of failure
2288 **/
2289 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2290         LinphoneCall *call;
2291         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2292         p->has_video &= !!lc->video_policy.automatically_initiate;
2293         call=linphone_core_invite_address_with_params (lc,addr,p);
2294         linphone_call_params_destroy(p);
2295         return call;
2296 }
2297
2298
2299 /**
2300  * Initiates an outgoing call given a destination LinphoneAddress
2301  *
2302  * @ingroup call_control
2303  * @param lc the LinphoneCore object
2304  * @param addr the destination of the call (sip address).
2305         @param params call parameters
2306  *
2307  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2308  * created by linphone_core_interpret_url().
2309  * The application doesn't own a reference to the returned LinphoneCall object.
2310  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2311  *
2312  * @return a LinphoneCall object or NULL in case of failure
2313 **/
2314 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2315 {
2316         const char *route=NULL;
2317         const char *from=NULL;
2318         LinphoneProxyConfig *proxy=NULL;
2319         LinphoneAddress *parsed_url2=NULL;
2320         char *real_url=NULL;
2321         LinphoneProxyConfig *dest_proxy=NULL;
2322         LinphoneCall *call;
2323         bool_t use_ice = FALSE;
2324
2325         linphone_core_preempt_sound_resources(lc);
2326
2327         if(!linphone_core_can_we_add_call(lc)){
2328                 if (lc->vtable.display_warning)
2329                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2330                 return NULL;
2331         }
2332         linphone_core_get_default_proxy(lc,&proxy);
2333         route=linphone_core_get_route(lc);
2334
2335         real_url=linphone_address_as_string(addr);
2336         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2337
2338         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2339                 ms_message("Overriding default proxy setting for this call:");
2340                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2341         }
2342
2343         if (dest_proxy!=NULL)
2344                 from=linphone_proxy_config_get_identity(dest_proxy);
2345         else if (proxy!=NULL)
2346                 from=linphone_proxy_config_get_identity(proxy);
2347
2348         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2349         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2350
2351         parsed_url2=linphone_address_new(from);
2352
2353         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2354         sal_op_set_route(call->op,route);
2355
2356         if(linphone_core_add_call(lc,call)!= 0)
2357         {
2358                 ms_warning("we had a problem in adding the call into the invite ... weird");
2359                 linphone_call_unref(call);
2360                 return NULL;
2361         }
2362         /* this call becomes now the current one*/
2363         lc->current_call=call;
2364         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2365         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2366                 /* Defer the start of the call after the ICE gathering process. */
2367                 linphone_call_init_media_streams(call);
2368                 linphone_call_start_media_streams_for_ice_gathering(call);
2369                 call->start_time=time(NULL);
2370                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2371                         /* Ice candidates gathering failed, proceed with the call anyway. */
2372                         linphone_call_delete_ice_session(call);
2373                         linphone_call_stop_media_streams(call);
2374                 } else {
2375                         use_ice = TRUE;
2376                 }
2377         }
2378
2379         if (dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2380                 /*defer the start of the call after the OPTIONS ping*/
2381                 call->ping_replied=FALSE;
2382                 call->ping_op=sal_op_new(lc->sal);
2383                 sal_ping(call->ping_op,from,real_url);
2384                 sal_op_set_user_pointer(call->ping_op,call);
2385                 call->start_time=time(NULL);
2386         }else{
2387                 if (use_ice==FALSE) linphone_core_start_invite(lc,call,dest_proxy);
2388         }
2389
2390         if (real_url!=NULL) ms_free(real_url);
2391         return call;
2392 }
2393
2394 /**
2395  * Performs a simple call transfer to the specified destination.
2396  *
2397  * The remote endpoint is expected to issue a new call to the specified destination.
2398  * The current call remains active and thus can be later paused or terminated.
2399 **/
2400 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2401 {
2402         char *real_url=NULL;
2403         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2404
2405         if (!real_parsed_url){
2406                 /* bad url */
2407                 return -1;
2408         }
2409         if (call==NULL){
2410                 ms_warning("No established call to refer.");
2411                 return -1;
2412         }
2413         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2414         real_url=linphone_address_as_string (real_parsed_url);
2415         sal_call_refer(call->op,real_url);
2416         ms_free(real_url);
2417         linphone_address_destroy(real_parsed_url);
2418         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2419         return 0;
2420 }
2421
2422 /**
2423  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2424  * @param lc linphone core object
2425  * @param call a running call you want to transfer
2426  * @param dest a running call whose remote person will receive the transfer
2427  *
2428  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2429  * The destination call is a call previously established to introduce the transfered person.
2430  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2431  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2432  * close the call with us (the 'dest' call).
2433 **/
2434 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2435         int result = sal_call_refer_with_replaces (call->op,dest->op);
2436         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2437         return result;
2438 }
2439
2440 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2441         LinphoneCall *call = linphone_core_get_current_call(lc);
2442         if(call != NULL)
2443         {
2444                 if(call->dir==LinphoneCallIncoming
2445                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2446                         return TRUE;
2447         }
2448         return FALSE;
2449 }
2450
2451 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2452         char *barmesg;
2453         char *tmp;
2454         LinphoneAddress *from_parsed;
2455         SalMediaDescription *md;
2456         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2457         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2458
2459         call->localdesc=create_local_media_description(lc,call);
2460         sal_call_set_local_media_description(call->op,call->localdesc);
2461         md=sal_call_get_final_media_description(call->op);
2462         if (md && sal_media_description_empty(md)){
2463                 sal_call_decline(call->op,SalReasonMedia,NULL);
2464                 linphone_call_unref(call);
2465                 return;
2466         }
2467
2468         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2469         linphone_address_clean(from_parsed);
2470         tmp=linphone_address_as_string(from_parsed);
2471         linphone_address_destroy(from_parsed);
2472         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2473             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2474         if (lc->vtable.show) lc->vtable.show(lc);
2475         if (lc->vtable.display_status)
2476             lc->vtable.display_status(lc,barmesg);
2477
2478         /* play the ring if this is the only call*/
2479         if (ms_list_size(lc->calls)==1){
2480                 lc->current_call=call;
2481                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2482                         ring_stop(lc->ringstream);
2483                         lc->ringstream=NULL;
2484                         lc->dmfs_playing_start_time=0;
2485                 }
2486                 if (lc->sound_conf.ring_sndcard!=NULL){
2487                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2488                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2489                                 ms_message("Starting local ring...");
2490                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2491                         }
2492                         else
2493                         {
2494                                 ms_message("the local ring is already started");
2495                         }
2496                 }
2497         }else{
2498                 /* else play a tone within the context of the current call */
2499                 call->ringing_beep=TRUE;
2500                 linphone_core_play_tone(lc);
2501         }
2502
2503         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2504
2505         if (call->state==LinphoneCallIncomingReceived){
2506                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2507
2508                 if (propose_early_media || ringback_tone!=NULL){
2509                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2510                         md=sal_call_get_final_media_description(call->op);
2511                         linphone_core_update_streams(lc,call,md);
2512                 }
2513                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2514                         linphone_core_accept_call(lc,call);
2515                 }
2516         }
2517         linphone_call_unref(call);
2518
2519         ms_free(barmesg);
2520         ms_free(tmp);
2521 }
2522
2523 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2524         const char *subject;
2525         call->camera_active=call->params.has_video;
2526         update_local_media_description(lc,call);
2527         if (call->ice_session != NULL)
2528                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2529
2530         if (call->params.in_conference){
2531                 subject="Conference";
2532         }else{
2533                 subject="Media change";
2534         }
2535         if (lc->vtable.display_status)
2536                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2537         sal_call_set_local_media_description (call->op,call->localdesc);
2538         return sal_call_update(call->op,subject);
2539 }
2540
2541 /**
2542  * @ingroup call_control
2543  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2544  *
2545  * In this version this is limited to the following use cases:
2546  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2547  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2548  *
2549  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2550  * @param lc the core
2551  * @param call the call to be updated
2552  * @param params the new call parameters to use. (may be NULL)
2553  * @return 0 if successful, -1 otherwise.
2554 **/
2555 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2556         int err=0;
2557         if (params!=NULL){
2558 #ifdef VIDEO_ENABLED
2559                 bool_t has_video = call->params.has_video;
2560                 if ((call->ice_session != NULL) && (call->videostream != NULL) && !params->has_video) {
2561                         ice_session_remove_check_list(call->ice_session, call->videostream->ice_check_list);
2562                         call->videostream->ice_check_list = NULL;
2563                 }
2564                 call->params = *params;
2565                 if ((call->ice_session != NULL) && (ice_session_state(call->ice_session) != IS_Completed) && !has_video && params->has_video) {
2566                         /* Defer call update until the ICE candidates gathering process has finished. */
2567                         ms_message("Defer call update to gather ICE candidates");
2568                         update_local_media_description(lc, call);
2569                         linphone_call_init_video_stream(call);
2570                         video_stream_prepare_video(call->videostream);
2571                         if (linphone_core_gather_ice_candidates(lc,call)<0) {
2572                                 /* Ice candidates gathering failed, proceed with the call anyway. */
2573                                 linphone_call_delete_ice_session(call);
2574                         } else return err;
2575                 }
2576 #endif
2577                 err = linphone_core_start_update_call(lc, call);
2578         }else{
2579 #ifdef VIDEO_ENABLED
2580                 if (call->videostream!=NULL){
2581                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2582                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2583                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2584                         }else video_stream_update_video_params(call->videostream);
2585                 }
2586 #endif
2587         }
2588
2589         return err;
2590 }
2591
2592 /**
2593  * @ingroup call_control
2594  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2595  *
2596  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2597  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2598  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2599  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2600  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2601  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2602  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2603  *
2604  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2605 **/
2606 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2607         if (call->state==LinphoneCallUpdatedByRemote){
2608                 call->defer_update=TRUE;
2609                 return 0;
2610         }
2611         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2612         return -1;
2613 }
2614
2615 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2616         SalMediaDescription *md;
2617         if (call->ice_session != NULL) {
2618                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2619                         /* Defer the sending of the answer until there are no losing pairs left. */
2620                         return 0;
2621                 }
2622                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2623         }
2624         sal_call_set_local_media_description(call->op,call->localdesc);
2625         sal_call_accept(call->op);
2626         md=sal_call_get_final_media_description(call->op);
2627         if (md && !sal_media_description_empty(md))
2628                 linphone_core_update_streams (lc,call,md);
2629         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2630         return 0;
2631 }
2632
2633 /**
2634  * @ingroup call_control
2635  * Accept call modifications initiated by other end.
2636  *
2637  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2638  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2639  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2640  * requested by the other party, such as whether a video stream is requested.
2641  *
2642  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2643  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2644  * If params is not NULL, then the update will be accepted according to the parameters passed.
2645  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2646  * (see linphone_call_params_enable_video()).
2647  * @param lc the linphone core object.
2648  * @param call the LinphoneCall object
2649  * @param params a LinphoneCallParams object describing the call parameters to accept.
2650  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2651 **/
2652 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2653         bool_t old_has_video = call->params.has_video;
2654         if (call->state!=LinphoneCallUpdatedByRemote){
2655                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2656                          linphone_call_state_to_string(call->state));
2657                 return -1;
2658         }
2659         if (params==NULL){
2660                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2661         }else
2662                 call->params=*params;
2663
2664         if (call->current_params.in_conference) {
2665                 ms_warning("Video isn't supported in conference");
2666                 call->params.has_video = FALSE;
2667         }
2668         call->camera_active=call->params.has_video;
2669         update_local_media_description(lc,call);
2670         if (call->ice_session != NULL) {
2671                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2672 #ifdef VIDEO_ENABLED
2673                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2674                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2675                                 linphone_call_init_video_stream(call);
2676                                 video_stream_prepare_video(call->videostream);
2677                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2678                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2679                                         linphone_call_delete_ice_session(call);
2680                                 } else return 0;
2681                         }
2682                 }
2683 #endif
2684         }
2685         linphone_core_start_accept_call_update(lc, call);
2686         return 0;
2687 }
2688
2689 /**
2690  * Accept an incoming call.
2691  *
2692  * @ingroup call_control
2693  * Basically the application is notified of incoming calls within the
2694  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2695  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2696  * The application can later accept the call using this method.
2697  * @param lc the LinphoneCore object
2698  * @param call the LinphoneCall object representing the call to be answered.
2699  *
2700 **/
2701 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
2702         return linphone_core_accept_call_with_params(lc,call,NULL);
2703 }
2704
2705 /**
2706  * Accept an incoming call, with parameters.
2707  *
2708  * @ingroup call_control
2709  * Basically the application is notified of incoming calls within the
2710  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2711  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2712  * The application can later accept the call using
2713  * this method.
2714  * @param lc the LinphoneCore object
2715  * @param call the LinphoneCall object representing the call to be answered.
2716  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
2717  *
2718 **/
2719 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
2720 {
2721         LinphoneProxyConfig *cfg=NULL,*dest_proxy=NULL;
2722         const char *contact=NULL;
2723         SalOp *replaced;
2724         SalMediaDescription *new_md;
2725         bool_t was_ringing=FALSE;
2726
2727         if (call==NULL){
2728                 //if just one call is present answer the only one ...
2729                 if(linphone_core_get_calls_nb (lc) != 1)
2730                         return -1;
2731                 else
2732                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
2733         }
2734
2735         if (call->state==LinphoneCallConnected){
2736                 /*call already accepted*/
2737                 return -1;
2738         }
2739
2740         /* check if this call is supposed to replace an already running one*/
2741         replaced=sal_call_get_replaces(call->op);
2742         if (replaced){
2743                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
2744                 if (rc){
2745                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
2746                                    call,rc);
2747                         linphone_core_terminate_call(lc,rc);
2748                 }
2749         }
2750
2751         if (lc->current_call!=call){
2752                 linphone_core_preempt_sound_resources(lc);
2753         }
2754
2755         /*stop ringing */
2756         if (lc->ringstream!=NULL) {
2757                 ms_message("stop ringing");
2758                 ring_stop(lc->ringstream);
2759                 ms_message("ring stopped");
2760                 lc->ringstream=NULL;
2761                 was_ringing=TRUE;
2762         }
2763         if (call->ringing_beep){
2764                 linphone_core_stop_dtmf(lc);
2765                 call->ringing_beep=FALSE;
2766         }
2767
2768         linphone_core_get_default_proxy(lc,&cfg);
2769         dest_proxy=cfg;
2770         dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
2771
2772         if (cfg!=dest_proxy && dest_proxy!=NULL) {
2773                 ms_message("Overriding default proxy setting for this call:");
2774                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2775         }
2776         /*try to be best-effort in giving real local or routable contact address*/
2777         contact=get_fixed_contact(lc,call,dest_proxy);
2778         if (contact)
2779                 sal_op_set_contact(call->op,contact);
2780
2781         if (call->audiostream==NULL)
2782                 linphone_call_init_media_streams(call);
2783         if (!was_ringing && call->audiostream->ticker==NULL){
2784                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2785         }
2786
2787         if (params){
2788                 call->params=*params;
2789                 call->camera_active=call->params.has_video;
2790                 update_local_media_description(lc,call);
2791                 sal_call_set_local_media_description(call->op,call->localdesc);
2792         }
2793
2794         sal_call_accept(call->op);
2795         if (lc->vtable.display_status!=NULL)
2796                 lc->vtable.display_status(lc,_("Connected."));
2797         lc->current_call=call;
2798         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
2799         new_md=sal_call_get_final_media_description(call->op);
2800         linphone_core_update_streams(lc, call, new_md);
2801         if (new_md){
2802                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2803         }else call->media_pending=TRUE;
2804
2805         ms_message("call answered.");
2806         return 0;
2807 }
2808
2809 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
2810         sal_call_terminate(call->op);
2811
2812         /*stop ringing*/
2813         if (lc->ringstream!=NULL) {
2814                 ring_stop(lc->ringstream);
2815                 lc->ringstream=NULL;
2816         }
2817         linphone_call_stop_media_streams(call);
2818         if (lc->vtable.display_status!=NULL)
2819                 lc->vtable.display_status(lc,_("Call aborted") );
2820         linphone_call_set_state(call,LinphoneCallError,error);
2821         return 0;
2822 }
2823
2824 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
2825         if (call->state==LinphoneCallIncomingReceived){
2826                 if (call->reason!=LinphoneReasonNotAnswered)
2827                         call->reason=LinphoneReasonDeclined;
2828         }
2829         /*stop ringing*/
2830         if (lc->ringstream!=NULL) {
2831                 ring_stop(lc->ringstream);
2832                 lc->ringstream=NULL;
2833         }
2834
2835         linphone_call_stop_media_streams(call);
2836         if (lc->vtable.display_status!=NULL)
2837                 lc->vtable.display_status(lc,_("Call ended") );
2838 }
2839
2840 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
2841         if (call->state==LinphoneCallIncomingReceived){
2842                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
2843                 call->reason=LinphoneReasonDeclined;
2844                 terminate_call(lc,call);
2845                 linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2846         }else{
2847                 ms_error("Bad state for call redirection.");
2848                 return -1;
2849     }
2850         return 0;
2851 }
2852
2853
2854 /**
2855  * Terminates a call.
2856  *
2857  * @ingroup call_control
2858  * @param lc the LinphoneCore
2859  * @param the_call the LinphoneCall object representing the call to be terminated.
2860 **/
2861 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
2862 {
2863         LinphoneCall *call;
2864         if (the_call == NULL){
2865                 call = linphone_core_get_current_call(lc);
2866                 if (ms_list_size(lc->calls)==1){
2867                         call=(LinphoneCall*)lc->calls->data;
2868                 }else{
2869                         ms_warning("No unique call to terminate !");
2870                         return -1;
2871                 }
2872         }
2873         else
2874         {
2875                 call = the_call;
2876         }
2877         sal_call_terminate(call->op);
2878         terminate_call(lc,call);
2879
2880         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2881         return 0;
2882 }
2883
2884 /**
2885  * Terminates all the calls.
2886  *
2887  * @ingroup call_control
2888  * @param lc The LinphoneCore
2889 **/
2890 int linphone_core_terminate_all_calls(LinphoneCore *lc){
2891         MSList *calls=lc->calls;
2892         while(calls) {
2893                 LinphoneCall *c=(LinphoneCall*)calls->data;
2894                 calls=calls->next;
2895                 linphone_core_terminate_call(lc,c);
2896         }
2897         return 0;
2898 }
2899
2900 /**
2901  * Returns the current list of calls.
2902  *
2903  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
2904  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
2905  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
2906  *
2907  * @ingroup call_control
2908 **/
2909 const MSList *linphone_core_get_calls(LinphoneCore *lc)
2910 {
2911         return lc->calls;
2912 }
2913
2914 /**
2915  * Returns TRUE if there is a call running.
2916  *
2917  * @ingroup call_control
2918 **/
2919 bool_t linphone_core_in_call(const LinphoneCore *lc){
2920         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
2921 }
2922
2923 /**
2924  * Returns The _LinphoneCall struct of the current call if one is in call
2925  *
2926  * @ingroup call_control
2927 **/
2928 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
2929 {
2930         return lc->current_call;
2931 }
2932
2933 /**
2934  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
2935  * this file will be played to the remote user.
2936  *
2937  * @ingroup call_control
2938 **/
2939 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
2940 {
2941         const char *subject=NULL;
2942
2943         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
2944                 ms_warning("Cannot pause this call, it is not active.");
2945                 return -1;
2946         }
2947         update_local_media_description(lc,call);
2948         if (call->ice_session != NULL)
2949                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2950         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
2951                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
2952                 subject="Call on hold";
2953         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
2954                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
2955                 subject="Call on hold for me too";
2956         }else{
2957                 ms_error("No reason to pause this call, it is already paused or inactive.");
2958                 return -1;
2959         }
2960         sal_call_set_local_media_description(call->op,call->localdesc);
2961         if (sal_call_update(call->op,subject) != 0){
2962                 if (lc->vtable.display_warning)
2963                         lc->vtable.display_warning(lc,_("Could not pause the call"));
2964         }
2965         lc->current_call=NULL;
2966         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
2967         if (lc->vtable.display_status)
2968                 lc->vtable.display_status(lc,_("Pausing the current call..."));
2969         if (call->audiostream || call->videostream)
2970                 linphone_call_stop_media_streams (call);
2971         return 0;
2972 }
2973
2974 /**
2975  * Pause all currently running calls.
2976 **/
2977 int linphone_core_pause_all_calls(LinphoneCore *lc){
2978         const MSList *elem;
2979         for(elem=lc->calls;elem!=NULL;elem=elem->next){
2980                 LinphoneCall *call=(LinphoneCall *)elem->data;
2981                 LinphoneCallState cs=linphone_call_get_state(call);
2982                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
2983                         linphone_core_pause_call(lc,call);
2984                 }
2985         }
2986         return 0;
2987 }
2988
2989 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
2990         LinphoneCall *current_call;
2991         if (linphone_core_is_in_conference(lc)){
2992                 linphone_core_leave_conference(lc);
2993                 return;
2994         }
2995         current_call=linphone_core_get_current_call(lc);
2996         if(current_call != NULL){
2997                 ms_message("Pausing automatically the current call.");
2998                 linphone_core_pause_call(lc,current_call);
2999         }
3000 }
3001
3002 /**
3003  * Resumes the call.
3004  *
3005  * @ingroup call_control
3006 **/
3007 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3008 {
3009         char temp[255]={0};
3010         LinphoneCall *call = the_call;
3011         const char *subject="Call resuming";
3012
3013         if(call->state!=LinphoneCallPaused ){
3014                 ms_warning("we cannot resume a call that has not been established and paused before");
3015                 return -1;
3016         }
3017         if (call->params.in_conference==FALSE){
3018                 linphone_core_preempt_sound_resources(lc);
3019                 ms_message("Resuming call %p",call);
3020         }
3021
3022         /* Stop playing music immediately. If remote side is a conference it
3023          prevents the participants to hear it while the 200OK comes back.*/
3024         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3025
3026         update_local_media_description(lc,the_call);
3027         if (call->ice_session != NULL)
3028                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3029         sal_call_set_local_media_description(call->op,call->localdesc);
3030         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3031         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3032         if(sal_call_update(call->op,subject) != 0){
3033                 return -1;
3034         }
3035         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3036         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3037         if (lc->vtable.display_status)
3038                 lc->vtable.display_status(lc,temp);
3039         return 0;
3040 }
3041
3042 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3043         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3044         return !linphone_address_weak_equal (addr,raddr);
3045 }
3046
3047 /**
3048  * Get the call with the remote_address specified
3049  * @param lc
3050  * @param remote_address
3051  * @return the LinphoneCall of the call if found
3052  */
3053 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3054         LinphoneAddress *raddr=linphone_address_new(remote_address);
3055         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3056         if (elem) return (LinphoneCall*) elem->data;
3057         return NULL;
3058 }
3059
3060 int linphone_core_send_publish(LinphoneCore *lc,
3061                                LinphoneOnlineStatus presence_mode)
3062 {
3063         const MSList *elem;
3064         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3065                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3066                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3067         }
3068         return 0;
3069 }
3070
3071 /**
3072  * Set the incoming call timeout in seconds.
3073  *
3074  * @ingroup call_control
3075  * If an incoming call isn't answered for this timeout period, it is
3076  * automatically declined.
3077 **/
3078 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3079         lc->sip_conf.inc_timeout=seconds;
3080 }
3081
3082 /**
3083  * Returns the incoming call timeout
3084  *
3085  * @ingroup call_control
3086  * See linphone_core_set_inc_timeout() for details.
3087 **/
3088 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3089         return lc->sip_conf.inc_timeout;
3090 }
3091
3092 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3093                                                                                                         const char *contact,
3094                                                                                                         LinphoneOnlineStatus presence_mode)
3095 {
3096         if (minutes_away>0) lc->minutes_away=minutes_away;
3097
3098         if (lc->alt_contact!=NULL) {
3099                 ms_free(lc->alt_contact);
3100                 lc->alt_contact=NULL;
3101         }
3102         if (contact) lc->alt_contact=ms_strdup(contact);
3103         if (lc->presence_mode!=presence_mode){
3104                 linphone_core_notify_all_friends(lc,presence_mode);
3105                 /*
3106                    Improve the use of all LINPHONE_STATUS available.
3107                    !TODO Do not mix "presence status" with "answer status code"..
3108                    Use correct parameter to follow sip_if_match/sip_etag.
3109                  */
3110                 linphone_core_send_publish(lc,presence_mode);
3111         }
3112         lc->presence_mode=presence_mode;
3113 }
3114
3115 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3116         return lc->presence_mode;
3117 }
3118
3119 /**
3120  * Get playback sound level in 0-100 scale.
3121  *
3122  * @ingroup media_parameters
3123 **/
3124 int linphone_core_get_play_level(LinphoneCore *lc)
3125 {
3126         return lc->sound_conf.play_lev;
3127 }
3128
3129 /**
3130  * Get ring sound level in 0-100 scale
3131  *
3132  * @ingroup media_parameters
3133 **/
3134 int linphone_core_get_ring_level(LinphoneCore *lc)
3135 {
3136         return lc->sound_conf.ring_lev;
3137 }
3138
3139 /**
3140  * Get sound capture level in 0-100 scale
3141  *
3142  * @ingroup media_parameters
3143 **/
3144 int linphone_core_get_rec_level(LinphoneCore *lc){
3145         return lc->sound_conf.rec_lev;
3146 }
3147
3148 /**
3149  * Set sound ring level in 0-100 scale
3150  *
3151  * @ingroup media_parameters
3152 **/
3153 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3154         MSSndCard *sndcard;
3155         lc->sound_conf.ring_lev=level;
3156         sndcard=lc->sound_conf.ring_sndcard;
3157         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3158 }
3159
3160 /**
3161  * Allow to control play level before entering sound card:  gain in db
3162  *
3163  * @ingroup media_parameters
3164 **/
3165 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3166         float gain=gaindb;
3167         LinphoneCall *call=linphone_core_get_current_call (lc);
3168         AudioStream *st;
3169
3170         lc->sound_conf.soft_play_lev=gaindb;
3171
3172         if (call==NULL || (st=call->audiostream)==NULL){
3173                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3174                 return;
3175         }
3176         if (st->volrecv){
3177                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3178         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3179 }
3180
3181 /**
3182  * Get playback gain in db before entering  sound card.
3183  *
3184  * @ingroup media_parameters
3185 **/
3186 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3187         return lc->sound_conf.soft_play_lev;
3188 }
3189
3190 /**
3191  * Set sound playback level in 0-100 scale
3192  *
3193  * @ingroup media_parameters
3194 **/
3195 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3196         MSSndCard *sndcard;
3197         lc->sound_conf.play_lev=level;
3198         sndcard=lc->sound_conf.play_sndcard;
3199         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3200 }
3201
3202 /**
3203  * Set sound capture level in 0-100 scale
3204  *
3205  * @ingroup media_parameters
3206 **/
3207 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3208 {
3209         MSSndCard *sndcard;
3210         lc->sound_conf.rec_lev=level;
3211         sndcard=lc->sound_conf.capt_sndcard;
3212         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3213 }
3214
3215 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3216         MSSndCard *sndcard=NULL;
3217         if (devid!=NULL){
3218                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3219                 if (sndcard!=NULL &&
3220                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3221                         ms_warning("%s card does not have the %s capability, ignoring.",
3222                                 devid,
3223                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3224                         sndcard=NULL;
3225                 }
3226         }
3227         if (sndcard==NULL) {
3228                 /* get a card that has read+write capabilities */
3229                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3230                 /* otherwise refine to the first card having the right capability*/
3231                 if (sndcard==NULL){
3232                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3233                         for(;elem!=NULL;elem=elem->next){
3234                                 sndcard=(MSSndCard*)elem->data;
3235                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3236                         }
3237                 }
3238                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3239                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3240                         if (elem) sndcard=(MSSndCard*)elem->data;
3241         }
3242         }
3243         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3244         return sndcard;
3245 }
3246
3247 /**
3248  * Returns true if the specified sound device can capture sound.
3249  *
3250  * @ingroup media_parameters
3251  * @param lc The LinphoneCore object
3252  * @param devid the device name as returned by linphone_core_get_sound_devices()
3253 **/
3254 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3255         MSSndCard *sndcard;
3256         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3257         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3258         return FALSE;
3259 }
3260
3261 /**
3262  * Returns true if the specified sound device can play sound.
3263  *
3264  * @ingroup media_parameters
3265  * @param lc The LinphoneCore object
3266  * @param devid the device name as returned by linphone_core_get_sound_devices()
3267 **/
3268 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3269         MSSndCard *sndcard;
3270         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3271         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3272         return FALSE;
3273 }
3274
3275 /**
3276  * Sets the sound device used for ringing.
3277  *
3278  * @ingroup media_parameters
3279  * @param lc The LinphoneCore object
3280  * @param devid the device name as returned by linphone_core_get_sound_devices()
3281 **/
3282 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3283         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3284         lc->sound_conf.ring_sndcard=card;
3285         if (card && linphone_core_ready(lc))
3286                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3287         return 0;
3288 }
3289
3290 /**
3291  * Sets the sound device used for playback.
3292  *
3293  * @ingroup media_parameters
3294  * @param lc The LinphoneCore object
3295  * @param devid the device name as returned by linphone_core_get_sound_devices()
3296 **/
3297 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3298         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3299         lc->sound_conf.play_sndcard=card;
3300         if (card &&  linphone_core_ready(lc))
3301                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3302         return 0;
3303 }
3304
3305 /**
3306  * Sets the sound device used for capture.
3307  *
3308  * @ingroup media_parameters
3309  * @param lc The LinphoneCore object
3310  * @param devid the device name as returned by linphone_core_get_sound_devices()
3311 **/
3312 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3313         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3314         lc->sound_conf.capt_sndcard=card;
3315         if (card &&  linphone_core_ready(lc))
3316                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3317         return 0;
3318 }
3319
3320 /**
3321  * Returns the name of the currently assigned sound device for ringing.
3322  *
3323  * @ingroup media_parameters
3324  * @param lc The LinphoneCore object
3325 **/
3326 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3327 {
3328         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3329         return NULL;
3330 }
3331
3332 /**
3333  * Returns the name of the currently assigned sound device for playback.
3334  *
3335  * @ingroup media_parameters
3336  * @param lc The LinphoneCore object
3337 **/
3338 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3339 {
3340         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3341 }
3342
3343 /**
3344  * Returns the name of the currently assigned sound device for capture.
3345  *
3346  * @ingroup media_parameters
3347  * @param lc The LinphoneCore object
3348 **/
3349 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3350 {
3351         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3352 }
3353
3354 /**
3355  * Returns an unmodifiable array of available sound devices.
3356  *
3357  * The array is NULL terminated.
3358  *
3359  * @ingroup media_parameters
3360  * @param lc The LinphoneCore object
3361 **/
3362 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3363         return lc->sound_conf.cards;
3364 }
3365
3366 /**
3367  * Returns an unmodifiable array of available video capture devices.
3368  *
3369  * @ingroup media_parameters
3370  * The array is NULL terminated.
3371 **/
3372 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3373         return lc->video_conf.cams;
3374 }
3375
3376 /**
3377  * Update detection of sound devices.
3378  *
3379  * Use this function when the application is notified of USB plug events, so that
3380  * list of available hardwares for sound playback and capture is updated.
3381  **/
3382 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3383         const char *ringer,*playback,*capture;
3384         ringer=linphone_core_get_ringer_device(lc);
3385         playback=linphone_core_get_playback_device(lc);
3386         capture=linphone_core_get_capture_device(lc);
3387         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3388         build_sound_devices_table(lc);
3389         linphone_core_set_ringer_device(lc,ringer);
3390         linphone_core_set_playback_device(lc,playback);
3391         linphone_core_set_capture_device(lc,capture);
3392 }
3393
3394 /**
3395  * Update detection of camera devices.
3396  *
3397  * Use this function when the application is notified of USB plug events, so that
3398  * list of available hardwares for video capture is updated.
3399  **/
3400 void linphone_core_reload_video_devices(LinphoneCore *lc){
3401         const char *devid;
3402         devid=linphone_core_get_video_device(lc);
3403         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3404         build_video_devices_table(lc);
3405         linphone_core_set_video_device(lc,devid);
3406 }
3407
3408 char linphone_core_get_sound_source(LinphoneCore *lc)
3409 {
3410         return lc->sound_conf.source;
3411 }
3412
3413 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3414 {
3415         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3416         lc->sound_conf.source=source;
3417         if (!sndcard) return;
3418         switch(source){
3419                 case 'm':
3420                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3421                         break;
3422                 case 'l':
3423                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3424                         break;
3425         }
3426
3427 }
3428
3429
3430 /**
3431  * Sets the path to a wav file used for ringing.
3432  *
3433  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3434  * @param lc The LinphoneCore object
3435  *
3436  * @ingroup media_parameters
3437 **/
3438 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3439         if (lc->sound_conf.local_ring!=0){
3440                 ms_free(lc->sound_conf.local_ring);
3441                 lc->sound_conf.local_ring=NULL;
3442         }
3443         if (path)
3444                 lc->sound_conf.local_ring=ms_strdup(path);
3445         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3446                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3447 }
3448
3449 /**
3450  * Returns the path to the wav file used for ringing.
3451  *
3452  * @param lc The LinphoneCore object
3453  * @ingroup media_parameters
3454 **/
3455 const char *linphone_core_get_ring(const LinphoneCore *lc){
3456         return lc->sound_conf.local_ring;
3457 }
3458
3459 /**
3460  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3461  *
3462  * @param path
3463  * @param lc The LinphoneCore object
3464  *
3465  * @ingroup media_parameters
3466 **/
3467 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3468         sal_set_root_ca(lc->sal, path);
3469 }
3470
3471 /**
3472  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3473 **/
3474 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3475         sal_verify_server_certificates(lc->sal,yesno);
3476 }
3477
3478 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3479         LinphoneCore *lc=(LinphoneCore*)ud;
3480         lc->preview_finished=1;
3481 }
3482
3483 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3484 {
3485         if (lc->ringstream!=0){
3486                 ms_warning("Cannot start ring now,there's already a ring being played");
3487                 return -1;
3488         }
3489         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3490         lc->preview_finished=0;
3491         if (lc->sound_conf.ring_sndcard!=NULL){
3492                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3493                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3494         }
3495         return 0;
3496 }
3497
3498 /**
3499  * Sets the path to a wav file used for ringing back.
3500  *
3501  * Ringback means the ring that is heard when it's ringing at the remote party.
3502  * The file must be a wav 16bit linear.
3503  *
3504  * @ingroup media_parameters
3505 **/
3506 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3507         if (lc->sound_conf.remote_ring!=0){
3508                 ms_free(lc->sound_conf.remote_ring);
3509         }
3510         lc->sound_conf.remote_ring=ms_strdup(path);
3511 }
3512
3513 /**
3514  * Returns the path to the wav file used for ringing back.
3515  *
3516  * @ingroup media_parameters
3517 **/
3518 const char * linphone_core_get_ringback(const LinphoneCore *lc){
3519         return lc->sound_conf.remote_ring;
3520 }
3521
3522 /**
3523  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
3524  *
3525  * @ingroup media_parameters
3526 **/
3527 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
3528         lc->sound_conf.ec=val;
3529         if ( linphone_core_ready(lc))
3530                 lp_config_set_int(lc->config,"sound","echocancellation",val);
3531 }
3532
3533
3534 /**
3535  * Returns TRUE if echo cancellation is enabled.
3536  *
3537  * @ingroup media_parameters
3538 **/
3539 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
3540         return lc->sound_conf.ec;
3541 }
3542
3543 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
3544         lc->sound_conf.ea=val;
3545 }
3546
3547 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
3548         return lc->sound_conf.ea;
3549 }
3550
3551 /**
3552  * Mutes or unmutes the local microphone.
3553  *
3554  * @ingroup media_parameters
3555 **/
3556 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
3557         LinphoneCall *call=linphone_core_get_current_call(lc);
3558         AudioStream *st=NULL;
3559         if (linphone_core_is_in_conference(lc)){
3560                 lc->conf_ctx.local_muted=val;
3561                 st=lc->conf_ctx.local_participant;
3562         }else if (call==NULL){
3563                 ms_warning("linphone_core_mute_mic(): No current call !");
3564                 return;
3565         }else{
3566                 st=call->audiostream;
3567                 call->audio_muted=val;
3568         }
3569         if (st!=NULL){
3570                 audio_stream_set_mic_gain(st,
3571                         (val==TRUE) ? 0 : lp_config_get_float(lc->config,"sound","mic_gain",1));
3572                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
3573                         audio_stream_mute_rtp(st,val);
3574                 }
3575
3576         }
3577 }
3578 /**
3579  * Returns whether microphone is muted.
3580 **/
3581 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
3582         LinphoneCall *call=linphone_core_get_current_call(lc);
3583         if (linphone_core_is_in_conference(lc)){
3584                 return lc->conf_ctx.local_muted;
3585         }else if (call==NULL){
3586                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3587                 return FALSE;
3588         }
3589         return call->audio_muted;
3590 }
3591
3592 // returns rtp transmission status for an active stream
3593 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
3594 // was set on then rtp transmission is also muted
3595 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
3596         LinphoneCall *call=linphone_core_get_current_call(lc);
3597         if (call==NULL){
3598                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3599                 return FALSE;
3600         }
3601         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
3602                 return call->audio_muted;
3603         }
3604         return FALSE;
3605 }
3606
3607 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
3608         lc->sound_conf.agc=val;
3609 }
3610
3611 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
3612         return lc->sound_conf.agc;
3613 }
3614
3615 /**
3616  * Send the specified dtmf.
3617  *
3618  * @ingroup media_parameters
3619  * This function only works during calls. The dtmf is automatically played to the user.
3620  * @param lc The LinphoneCore object
3621  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
3622  *
3623 **/
3624 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
3625 {
3626         LinphoneCall *call=linphone_core_get_current_call(lc);
3627         if (call==NULL){
3628                 ms_warning("linphone_core_send_dtmf(): no active call");
3629                 return;
3630         }
3631         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
3632         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
3633         {
3634                 /* In Band DTMF */
3635                 if (call->audiostream!=NULL){
3636                         audio_stream_send_dtmf(call->audiostream,dtmf);
3637                 }
3638                 else
3639                 {
3640                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
3641                 }
3642         }
3643         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
3644                 /* Out of Band DTMF (use INFO method) */
3645                 sal_call_send_dtmf(call->op,dtmf);
3646         }
3647 }
3648
3649 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
3650         if (lc->net_conf.stun_server!=NULL)
3651                 ms_free(lc->net_conf.stun_server);
3652         if (server)
3653                 lc->net_conf.stun_server=ms_strdup(server);
3654         else lc->net_conf.stun_server=NULL;
3655         if (linphone_core_ready(lc))
3656                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
3657 }
3658
3659 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
3660         return lc->net_conf.stun_server;
3661 }
3662
3663 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
3664         return lc->net_conf.relay;
3665 }
3666
3667 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
3668         if (lc->net_conf.relay!=NULL){
3669                 ms_free(lc->net_conf.relay);
3670                 lc->net_conf.relay=NULL;
3671         }
3672         if (addr){
3673                 lc->net_conf.relay=ms_strdup(addr);
3674         }
3675         return 0;
3676 }
3677
3678 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
3679 {
3680         if (lc->net_conf.nat_address!=NULL){
3681                 ms_free(lc->net_conf.nat_address);
3682         }
3683         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
3684         else lc->net_conf.nat_address=NULL;
3685         if (lc->sip_conf.contact) update_primary_contact(lc);
3686 }
3687
3688 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
3689         return lc->net_conf.nat_address;
3690 }
3691
3692 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
3693 {
3694         struct sockaddr_storage ss;
3695         socklen_t ss_len;
3696         int error;
3697         char ipstring [INET6_ADDRSTRLEN];
3698
3699         if (lc->net_conf.nat_address==NULL) return NULL;
3700
3701         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
3702                 return lc->net_conf.nat_address;
3703         }
3704
3705         error = getnameinfo((struct sockaddr *)&ss, ss_len,
3706                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
3707         if (error) {
3708                 return lc->net_conf.nat_address;
3709         }
3710
3711         if (lc->net_conf.nat_address_ip!=NULL){
3712                 ms_free(lc->net_conf.nat_address_ip);
3713         }
3714         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
3715         return lc->net_conf.nat_address_ip;
3716 }
3717
3718 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
3719         lc->net_conf.firewall_policy=pol;
3720         if (lc->sip_conf.contact) update_primary_contact(lc);
3721         if (linphone_core_ready(lc))
3722                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
3723 }
3724
3725 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
3726         return lc->net_conf.firewall_policy;
3727 }
3728
3729 /**
3730  * Get the list of call logs (past calls).
3731  *
3732  * @ingroup call_logs
3733 **/
3734 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
3735         return lc->call_logs;
3736 }
3737
3738 /**
3739  * Erase the call log.
3740  *
3741  * @ingroup call_logs
3742 **/
3743 void linphone_core_clear_call_logs(LinphoneCore *lc){
3744         lc->missed_calls=0;
3745         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
3746         lc->call_logs=ms_list_free(lc->call_logs);
3747         call_logs_write_to_config_file(lc);
3748 }
3749
3750 /**
3751  * Returns number of missed calls.
3752  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
3753 **/
3754 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
3755         return lc->missed_calls;
3756 }
3757
3758 /**
3759  * Resets the counter of missed calls.
3760 **/
3761 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
3762         lc->missed_calls=0;
3763 }
3764
3765 /**
3766  * Remove a specific call log from call history list.
3767  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
3768  * @param lc the linphone core object
3769  * @param a LinphoneCallLog object.
3770 **/
3771 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
3772         lc->call_logs = ms_list_remove(lc->call_logs, cl);
3773         call_logs_write_to_config_file(lc);
3774         linphone_call_log_destroy(cl);
3775 }
3776
3777 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
3778 #ifdef VIDEO_ENABLED
3779         if (val){
3780                 if (lc->previewstream==NULL){
3781                         lc->previewstream=video_preview_new();
3782                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
3783                         if (lc->video_conf.displaytype)
3784                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
3785                         if (lc->preview_window_id!=0)
3786                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
3787                         video_preview_start(lc->previewstream,lc->video_conf.device);
3788                 }
3789         }else{
3790                 if (lc->previewstream!=NULL){
3791                         video_preview_stop(lc->previewstream);
3792                         lc->previewstream=NULL;
3793                 }
3794         }
3795 #endif
3796 }
3797
3798 /**
3799  * Enables video globally.
3800  *
3801  * @ingroup media_parameters
3802  * This function does not have any effect during calls. It just indicates LinphoneCore to
3803  * initiate future calls with video or not. The two boolean parameters indicate in which
3804  * direction video is enabled. Setting both to false disables video entirely.
3805  *
3806  * @param lc The LinphoneCore object
3807  * @param vcap_enabled indicates whether video capture is enabled
3808  * @param display_enabled indicates whether video display should be shown
3809  *
3810 **/
3811 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
3812 #ifndef VIDEO_ENABLED
3813         if (vcap_enabled || display_enabled)
3814                 ms_warning("This version of linphone was built without video support.");
3815 #endif
3816         lc->video_conf.capture=vcap_enabled;
3817         lc->video_conf.display=display_enabled;
3818
3819         /* need to re-apply network bandwidth settings*/
3820         linphone_core_set_download_bandwidth(lc,
3821                 linphone_core_get_download_bandwidth(lc));
3822         linphone_core_set_upload_bandwidth(lc,
3823                 linphone_core_get_upload_bandwidth(lc));
3824 }
3825
3826 bool_t linphone_core_video_supported(LinphoneCore *lc){
3827 #ifdef VIDEO_ENABLED
3828         return TRUE;
3829 #else
3830         return FALSE;
3831 #endif
3832 }
3833
3834 /**
3835  * Returns TRUE if video is enabled, FALSE otherwise.
3836  * @ingroup media_parameters
3837 **/
3838 bool_t linphone_core_video_enabled(LinphoneCore *lc){
3839         return (lc->video_conf.display || lc->video_conf.capture);
3840 }
3841
3842 /**
3843  * Sets the default policy for video.
3844  * This policy defines whether:
3845  * - video shall be initiated by default for outgoing calls
3846  * - video shall be accepter by default for incoming calls
3847  * @ingroup media_parameters
3848 **/
3849 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
3850         lc->video_policy=*policy;
3851         if (linphone_core_ready(lc)){
3852                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
3853                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
3854         }
3855 }
3856
3857 /**
3858  * Get the default policy for video.
3859  * See linphone_core_set_video_policy() for more details.
3860  * @ingroup media_parameters
3861 **/
3862 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
3863         return &lc->video_policy;
3864 }
3865
3866 /**
3867  * Controls video preview enablement.
3868  *
3869  * @ingroup media_parameters
3870  * Video preview refers to the action of displaying the local webcam image
3871  * to the user while not in call.
3872 **/
3873 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
3874         lc->video_conf.show_local=val;
3875         if (linphone_core_ready(lc))
3876                 lp_config_set_int(lc->config,"video","show_local",val);
3877 }
3878
3879 /**
3880  * Returns TRUE if video previewing is enabled.
3881  * @ingroup media_parameters
3882 **/
3883 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
3884         return lc->video_conf.show_local;
3885 }
3886
3887 /**
3888  * Enables or disable self view during calls.
3889  *
3890  * @ingroup media_parameters
3891  * Self-view refers to having local webcam image inserted in corner
3892  * of the video window during calls.
3893  * This function works at any time, including during calls.
3894 **/
3895 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
3896 #ifdef VIDEO_ENABLED
3897         LinphoneCall *call=linphone_core_get_current_call (lc);
3898         lc->video_conf.selfview=val;
3899         if (call && call->videostream){
3900                 video_stream_enable_self_view(call->videostream,val);
3901         }
3902         if (linphone_core_ready(lc)){
3903                 lp_config_set_int(lc->config,"video","self_view",val);
3904         }
3905 #endif
3906 }
3907
3908 /**
3909  * Returns TRUE if self-view is enabled, FALSE otherwise.
3910  *
3911  * @ingroup media_parameters
3912  *
3913  * Refer to linphone_core_enable_self_view() for details.
3914 **/
3915 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
3916         return lc->video_conf.selfview;
3917 }
3918
3919 /**
3920  * Sets the active video device.
3921  *
3922  * @ingroup media_parameters
3923  * @param lc The LinphoneCore object
3924  * @param id the name of the video device as returned by linphone_core_get_video_devices()
3925 **/
3926 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
3927         MSWebCam *olddev=lc->video_conf.device;
3928         const char *vd;
3929         if (id!=NULL){
3930                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
3931                 if (lc->video_conf.device==NULL){
3932                         ms_warning("Could not found video device %s",id);
3933                 }
3934         }
3935         if (lc->video_conf.device==NULL)
3936                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
3937         if (olddev!=NULL && olddev!=lc->video_conf.device){
3938                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
3939         }
3940         if ( linphone_core_ready(lc) && lc->video_conf.device){
3941                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
3942                 if (vd && strstr(vd,"Static picture")!=NULL){
3943                         vd=NULL;
3944                 }
3945                 lp_config_set_string(lc->config,"video","device",vd);
3946         }
3947         return 0;
3948 }
3949
3950 /**
3951  * Returns the name of the currently active video device.
3952  *
3953  * @param lc The LinphoneCore object
3954  * @ingroup media_parameters
3955 **/
3956 const char *linphone_core_get_video_device(const LinphoneCore *lc){
3957         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
3958         return NULL;
3959 }
3960
3961 #ifdef VIDEO_ENABLED
3962 static VideoStream * get_active_video_stream(LinphoneCore *lc){
3963         VideoStream *vs = NULL;
3964         LinphoneCall *call=linphone_core_get_current_call (lc);
3965         /* Select the video stream from the call in the first place */
3966         if (call && call->videostream) {
3967                 vs = call->videostream;
3968         }
3969         /* If not in call, select the video stream from the preview */
3970         if (vs == NULL && lc->previewstream) {
3971                 vs = lc->previewstream;
3972         }
3973         return vs;
3974 }
3975 #endif
3976
3977 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
3978 #ifdef VIDEO_ENABLED
3979         VideoStream *vs=get_active_video_stream(lc);
3980         /* If we have a video stream (either preview, either from call), we
3981                  have a source and it is using the static picture filter, then
3982                  force the filter to use that picture. */
3983         if (vs && vs->source) {
3984                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
3985                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
3986                                                                                                                 (void *)path);
3987                 }
3988         }
3989         /* Tell the static image filter to use that image from now on so
3990                  that the image will be used next time it has to be read */
3991         ms_static_image_set_default_image(path);
3992 #else
3993         ms_warning("Video support not compiled.");
3994 #endif
3995         return 0;
3996 }
3997
3998 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
3999 #ifdef VIDEO_ENABLED
4000         VideoStream *vs = NULL;
4001
4002         vs=get_active_video_stream(lc);
4003
4004         /* If we have a video stream (either preview, either from call), we
4005                  have a source and it is using the static picture filter, then
4006                  force the filter to use that picture. */
4007         if (vs && vs->source) {
4008                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4009                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4010                 }
4011         }
4012 #else
4013         ms_warning("Video support not compiled.");
4014 #endif
4015         return 0;
4016 }
4017
4018 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4019 #ifdef VIDEO_ENABLED
4020         VideoStream *vs = NULL;
4021         vs=get_active_video_stream(lc);
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
4028                         float fps;
4029
4030                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4031                         return fps;
4032                 }
4033         }
4034 #else
4035         ms_warning("Video support not compiled.");
4036 #endif
4037         return 0;
4038 }
4039
4040 /**
4041  * Returns the native window handle of the video window, casted as an unsigned long.
4042  *
4043  * @ingroup media_parameters
4044 **/
4045 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4046 #ifdef VIDEO_ENABLED
4047         LinphoneCall *call=linphone_core_get_current_call (lc);
4048         if (call && call->videostream)
4049                 return video_stream_get_native_window_id(call->videostream);
4050         if (lc->previewstream)
4051                 return video_stream_get_native_window_id(lc->previewstream);
4052 #endif
4053         return lc->video_window_id;
4054 }
4055
4056 /**@ingroup media_parameters
4057  * Set the native video window id where the video is to be displayed.
4058  * If not set the core will create its own window.
4059 **/
4060 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4061 #ifdef VIDEO_ENABLED
4062         LinphoneCall *call=linphone_core_get_current_call(lc);
4063         lc->video_window_id=id;
4064         if (call!=NULL && call->videostream){
4065                 video_stream_set_native_window_id(call->videostream,id);
4066         }
4067 #endif
4068 }
4069
4070 /**
4071  * Returns the native window handle of the video preview window, casted as an unsigned long.
4072  *
4073  * @ingroup media_parameters
4074 **/
4075 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4076 #ifdef VIDEO_ENABLED
4077         LinphoneCall *call=linphone_core_get_current_call (lc);
4078         if (call && call->videostream)
4079                 return video_stream_get_native_preview_window_id(call->videostream);
4080         if (lc->previewstream)
4081                 return video_preview_get_native_window_id(lc->previewstream);
4082 #endif
4083         return lc->preview_window_id;
4084 }
4085
4086 /**
4087  * @ingroup media_parameters
4088  * Set the native window id where the preview video (local camera) is to be displayed.
4089  * This has to be used in conjonction with linphone_core_use_preview_window().
4090  * If not set the core will create its own window.
4091 **/
4092 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4093         lc->preview_window_id=id;
4094 #ifdef VIDEO_ENABLED
4095         LinphoneCall *call=linphone_core_get_current_call(lc);
4096         if (call!=NULL && call->videostream){
4097                 video_stream_set_native_preview_window_id(call->videostream,id);
4098         }else if (lc->previewstream){
4099                 video_preview_set_native_window_id(lc->previewstream,id);
4100         }
4101 #endif
4102 }
4103
4104 /**
4105  * Can be used to disable video showing to free XV port
4106 **/
4107 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4108 #ifdef VIDEO_ENABLED
4109         ms_error("linphone_core_show_video %d", show);
4110         LinphoneCall *call=linphone_core_get_current_call(lc);
4111         if (call!=NULL && call->videostream){
4112                 video_stream_show_video(call->videostream,show);
4113         }
4114 #endif
4115 }
4116
4117 /**
4118  * Tells the core to use a separate window for local camera preview video, instead of
4119  * inserting local view within the remote video window.
4120  *
4121 **/
4122 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4123         lc->use_preview_window=yesno;
4124 }
4125 /**
4126  * @ingroup media_parameters
4127  *returns current device orientation
4128  */
4129 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4130         return lc->device_rotation;
4131 }
4132 /**
4133  * @ingroup media_parameters
4134  * Tells the core the device current orientation. This can be used by capture filters
4135  * on mobile devices to select between portrait/landscape mode and to produce properly
4136  * oriented images. The exact meaning of the value in rotation if left to each device
4137  * specific implementations.
4138  *@param lc  object.
4139  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4140  *
4141 **/
4142 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4143 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4144         lc->device_rotation = rotation;
4145 #ifdef VIDEO_ENABLED
4146         LinphoneCall *call=linphone_core_get_current_call(lc);
4147         if (call!=NULL && call->videostream){
4148                 video_stream_set_device_rotation(call->videostream,rotation);
4149         }
4150 #endif
4151 }
4152
4153 static MSVideoSizeDef supported_resolutions[]={
4154 #ifdef ENABLE_HD
4155         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4156         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4157 #endif
4158         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4159         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4160         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4161         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4162         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4163         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4164         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4165         {       {0,0}                   ,       NULL    }
4166 };
4167
4168 /**
4169  * Returns the zero terminated table of supported video resolutions.
4170  *
4171  * @ingroup media_parameters
4172 **/
4173 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4174         return supported_resolutions;
4175 }
4176
4177 static MSVideoSize video_size_get_by_name(const char *name){
4178         MSVideoSizeDef *pdef=supported_resolutions;
4179         MSVideoSize null_vsize={0,0};
4180         for(;pdef->name!=NULL;pdef++){
4181                 if (strcasecmp(name,pdef->name)==0){
4182                         return pdef->vsize;
4183                 }
4184         }
4185         ms_warning("Video resolution %s is not supported in linphone.",name);
4186         return null_vsize;
4187 }
4188
4189 static const char *video_size_get_name(MSVideoSize vsize){
4190         MSVideoSizeDef *pdef=supported_resolutions;
4191         for(;pdef->name!=NULL;pdef++){
4192                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4193                         return pdef->name;
4194                 }
4195         }
4196         return NULL;
4197 }
4198
4199 static bool_t video_size_supported(MSVideoSize vsize){
4200         if (video_size_get_name(vsize)) return TRUE;
4201         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4202         return FALSE;
4203 }
4204
4205 /**
4206  * Sets the preferred video size.
4207  *
4208  * @ingroup media_parameters
4209  * This applies only to the stream that is captured and sent to the remote party,
4210  * since we accept all standard video size on the receive path.
4211 **/
4212 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4213         if (video_size_supported(vsize)){
4214                 MSVideoSize oldvsize=lc->video_conf.vsize;
4215                 lc->video_conf.vsize=vsize;
4216                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4217                         toggle_video_preview(lc,FALSE);
4218                         toggle_video_preview(lc,TRUE);
4219                 }
4220                 if ( linphone_core_ready(lc))
4221                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4222         }
4223 }
4224
4225 /**
4226  * Sets the preferred video size by its name.
4227  *
4228  * @ingroup media_parameters
4229  * This is identical to linphone_core_set_preferred_video_size() except
4230  * that it takes the name of the video resolution as input.
4231  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4232 **/
4233 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4234         MSVideoSize vsize=video_size_get_by_name(name);
4235         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4236         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4237         else linphone_core_set_preferred_video_size(lc,default_vsize);
4238 }
4239
4240 /**
4241  * Returns the current preferred video size for sending.
4242  *
4243  * @ingroup media_parameters
4244 **/
4245 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4246         return lc->video_conf.vsize;
4247 }
4248
4249 /**
4250  * Ask the core to stream audio from and to files, instead of using the soundcard.
4251 **/
4252 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4253         lc->use_files=yesno;
4254 }
4255
4256 /**
4257  * Sets a wav file to be played when putting somebody on hold,
4258  * or when files are used instead of soundcards (see linphone_core_use_files()).
4259  *
4260  * The file must be a 16 bit linear wav file.
4261 **/
4262 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4263         LinphoneCall *call=linphone_core_get_current_call(lc);
4264         if (lc->play_file!=NULL){
4265                 ms_free(lc->play_file);
4266                 lc->play_file=NULL;
4267         }
4268         if (file!=NULL) {
4269                 lc->play_file=ms_strdup(file);
4270                 if (call && call->audiostream && call->audiostream->ticker)
4271                         audio_stream_play(call->audiostream,file);
4272         }
4273 }
4274
4275
4276 /**
4277  * Sets a wav file where incoming stream is to be recorded,
4278  * when files are used instead of soundcards (see linphone_core_use_files()).
4279  *
4280  * The file must be a 16 bit linear wav file.
4281 **/
4282 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4283         LinphoneCall *call=linphone_core_get_current_call(lc);
4284         if (lc->rec_file!=NULL){
4285                 ms_free(lc->rec_file);
4286                 lc->rec_file=NULL;
4287         }
4288         if (file!=NULL) {
4289                 lc->rec_file=ms_strdup(file);
4290                 if (call && call->audiostream)
4291                         audio_stream_record(call->audiostream,file);
4292         }
4293 }
4294
4295
4296 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4297         LinphoneCall *call=linphone_core_get_current_call (lc);
4298         AudioStream *stream=NULL;
4299         if (call){
4300                 stream=call->audiostream;
4301         }else if (linphone_core_is_in_conference(lc)){
4302                 stream=lc->conf_ctx.local_participant;
4303         }
4304         if (stream){
4305                 return stream->dtmfgen;
4306         }
4307         if (lc->ringstream==NULL){
4308                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4309                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4310                 if (ringcard == NULL)
4311                         return NULL;
4312
4313                 lc->ringstream=ring_start(NULL,0,ringcard);
4314                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4315                 lc->dmfs_playing_start_time=time(NULL);
4316         }else{
4317                 if (lc->dmfs_playing_start_time!=0)
4318                         lc->dmfs_playing_start_time=time(NULL);
4319         }
4320         return lc->ringstream->gendtmf;
4321 }
4322
4323 /**
4324  * @ingroup media_parameters
4325  * Plays a dtmf sound to the local user.
4326  * @param lc #LinphoneCore
4327  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4328  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4329 **/
4330 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4331         MSFilter *f=get_dtmf_gen(lc);
4332         if (f==NULL){
4333                 ms_error("No dtmf generator at this time !");
4334                 return;
4335         }
4336
4337         if (duration_ms>0)
4338                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4339         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4340 }
4341
4342 /**
4343  * @ingroup media_parameters
4344  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4345  * @param lc #LinphoneCore
4346 **/
4347 void linphone_core_play_tone(LinphoneCore *lc){
4348         MSFilter *f=get_dtmf_gen(lc);
4349         MSDtmfGenCustomTone def;
4350         if (f==NULL){
4351                 ms_error("No dtmf generator at this time !");
4352                 return;
4353         }
4354         def.duration=300;
4355         def.frequency=500;
4356         def.amplitude=1;
4357         def.interval=2000;
4358         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4359 }
4360
4361 /**
4362  * @ingroup media_parameters
4363  *
4364  * Stops playing a dtmf started by linphone_core_play_dtmf().
4365 **/
4366 void linphone_core_stop_dtmf(LinphoneCore *lc){
4367         MSFilter *f=get_dtmf_gen(lc);
4368         if (f!=NULL)
4369                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4370 }
4371
4372
4373
4374 /**
4375  * Retrieves the user pointer that was given to linphone_core_new()
4376  *
4377  * @ingroup initializing
4378 **/
4379 void *linphone_core_get_user_data(LinphoneCore *lc){
4380         return lc->data;
4381 }
4382
4383 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4384         lc->data=userdata;
4385 }
4386
4387 int linphone_core_get_mtu(const LinphoneCore *lc){
4388         return lc->net_conf.mtu;
4389 }
4390
4391 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4392         lc->net_conf.mtu=mtu;
4393         if (mtu>0){
4394                 if (mtu<500){
4395                         ms_error("MTU too small !");
4396                         mtu=500;
4397                 }
4398                 ms_set_mtu(mtu);
4399                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4400         }else ms_set_mtu(0);//use mediastreamer2 default value
4401 }
4402
4403 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4404         lc->wait_cb=cb;
4405         lc->wait_ctx=user_context;
4406 }
4407
4408 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4409         if (lc->wait_cb){
4410                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4411         }
4412 }
4413
4414 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4415         if (lc->wait_cb){
4416                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4417         }else{
4418 #ifdef WIN32
4419                 Sleep(50000);
4420 #else
4421                 usleep(50000);
4422 #endif
4423         }
4424 }
4425
4426 void linphone_core_stop_waiting(LinphoneCore *lc){
4427         if (lc->wait_cb){
4428                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4429         }
4430 }
4431
4432 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4433         lc->rtptf=factories;
4434 }
4435
4436 /**
4437  * Retrieve RTP statistics regarding current call.
4438  * @param local RTP statistics computed locally.
4439  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4440  *
4441  * @note Remote RTP statistics is not implemented yet.
4442  *
4443  * @returns 0 or -1 if no call is running.
4444 **/
4445
4446 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
4447         LinphoneCall *call=linphone_core_get_current_call (lc);
4448         if (call!=NULL){
4449                 if (call->audiostream!=NULL){
4450                         memset(remote,0,sizeof(*remote));
4451                         audio_stream_get_local_rtp_stats (call->audiostream,local);
4452                         return 0;
4453                 }
4454         }
4455         return -1;
4456 }
4457
4458 void net_config_uninit(LinphoneCore *lc)
4459 {
4460         net_config_t *config=&lc->net_conf;
4461
4462         if (config->stun_server!=NULL){
4463                 ms_free(lc->net_conf.stun_server);
4464         }
4465         if (config->nat_address!=NULL){
4466                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
4467                 ms_free(lc->net_conf.nat_address);
4468         }
4469         if (lc->net_conf.nat_address_ip !=NULL){
4470                 ms_free(lc->net_conf.nat_address_ip);
4471         }
4472         lp_config_set_int(lc->config,"net","mtu",config->mtu);
4473 }
4474
4475
4476 void sip_config_uninit(LinphoneCore *lc)
4477 {
4478         MSList *elem;
4479         int i;
4480         sip_config_t *config=&lc->sip_conf;
4481
4482         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
4483         lp_config_set_string(lc->config,"sip","contact",config->contact);
4484         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
4485         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
4486         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
4487         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
4488         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
4489
4490
4491
4492
4493         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
4494                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
4495                 linphone_proxy_config_edit(cfg);        /* to unregister */
4496         }
4497
4498         for (i=0;i<20;i++){
4499                 sal_iterate(lc->sal);
4500 #ifndef WIN32
4501                 usleep(100000);
4502 #else
4503                 Sleep(100);
4504 #endif
4505         }
4506
4507         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
4508         ms_list_free(config->proxies);
4509         config->proxies=NULL;
4510
4511         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
4512
4513         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
4514         ms_list_free(lc->auth_info);
4515         lc->auth_info=NULL;
4516
4517         sal_uninit(lc->sal);
4518         lc->sal=NULL;
4519
4520         if (lc->sip_conf.guessed_contact)
4521                 ms_free(lc->sip_conf.guessed_contact);
4522         if (config->contact)
4523                 ms_free(config->contact);
4524
4525 }
4526
4527 void rtp_config_uninit(LinphoneCore *lc)
4528 {
4529         rtp_config_t *config=&lc->rtp_conf;
4530         lp_config_set_int(lc->config,"rtp","audio_rtp_port",config->audio_rtp_port);
4531         lp_config_set_int(lc->config,"rtp","video_rtp_port",config->video_rtp_port);
4532         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
4533         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
4534         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
4535         lp_config_set_int(lc->config,"rtp","audio_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
4536         lp_config_set_int(lc->config,"rtp","video_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
4537 }
4538
4539 static void sound_config_uninit(LinphoneCore *lc)
4540 {
4541         sound_config_t *config=&lc->sound_conf;
4542         ms_free(config->cards);
4543
4544         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
4545
4546         if (config->local_ring) ms_free(config->local_ring);
4547         if (config->remote_ring) ms_free(config->remote_ring);
4548         ms_snd_card_manager_destroy();
4549 }
4550
4551 static void video_config_uninit(LinphoneCore *lc)
4552 {
4553         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
4554         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4555         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4556         if (lc->video_conf.cams)
4557                 ms_free(lc->video_conf.cams);
4558 }
4559
4560 void _linphone_core_codec_config_write(LinphoneCore *lc){
4561         if (linphone_core_ready(lc)){
4562                 PayloadType *pt;
4563                 codecs_config_t *config=&lc->codecs_conf;
4564                 MSList *node;
4565                 char key[50];
4566                 int index;
4567                 index=0;
4568                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
4569                         pt=(PayloadType*)(node->data);
4570                         sprintf(key,"audio_codec_%i",index);
4571                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4572                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4573                         lp_config_set_int(lc->config,key,"channels",pt->channels);
4574                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4575                         index++;
4576                 }
4577                 sprintf(key,"audio_codec_%i",index);
4578                 lp_config_clean_section (lc->config,key);
4579
4580                 index=0;
4581                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
4582                         pt=(PayloadType*)(node->data);
4583                         sprintf(key,"video_codec_%i",index);
4584                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4585                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4586                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4587                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
4588                         index++;
4589                 }
4590                 sprintf(key,"video_codec_%i",index);
4591                 lp_config_clean_section (lc->config,key);
4592         }
4593 }
4594
4595 static void codecs_config_uninit(LinphoneCore *lc)
4596 {
4597         _linphone_core_codec_config_write(lc);
4598         ms_list_free(lc->codecs_conf.audio_codecs);
4599         ms_list_free(lc->codecs_conf.video_codecs);
4600 }
4601
4602 void ui_config_uninit(LinphoneCore* lc)
4603 {
4604         if (lc->friends){
4605                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
4606                 ms_list_free(lc->friends);
4607                 lc->friends=NULL;
4608         }
4609 }
4610
4611 /**
4612  * Returns the LpConfig object used to manage the storage (config) file.
4613  *
4614  * @ingroup misc
4615  * The application can use the LpConfig object to insert its own private
4616  * sections and pairs of key=value in the configuration file.
4617  *
4618 **/
4619 LpConfig *linphone_core_get_config(LinphoneCore *lc){
4620         return lc->config;
4621 }
4622
4623 static void linphone_core_uninit(LinphoneCore *lc)
4624 {
4625         linphone_core_free_hooks(lc);
4626         while(lc->calls)
4627         {
4628                 LinphoneCall *the_call = lc->calls->data;
4629                 linphone_core_terminate_call(lc,the_call);
4630                 linphone_core_iterate(lc);
4631 #ifdef WIN32
4632                 Sleep(50000);
4633 #else
4634                 usleep(50000);
4635 #endif
4636         }
4637         if (lc->friends)
4638                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
4639         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
4640 #ifdef VIDEO_ENABLED
4641         if (lc->previewstream!=NULL){
4642                 video_preview_stop(lc->previewstream);
4643                 lc->previewstream=NULL;
4644         }
4645 #endif
4646         ms_event_queue_destroy(lc->msevq);
4647         lc->msevq=NULL;
4648         /* save all config */
4649         net_config_uninit(lc);
4650         rtp_config_uninit(lc);
4651         if (lc->ringstream) ring_stop(lc->ringstream);
4652         sound_config_uninit(lc);
4653         video_config_uninit(lc);
4654         codecs_config_uninit(lc);
4655         ui_config_uninit(lc);
4656         sip_config_uninit(lc);
4657         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
4658         lp_config_destroy(lc->config);
4659         lc->config = NULL; /* Mark the config as NULL to block further calls */
4660         sip_setup_unregister_all();
4661
4662         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4663         lc->call_logs=ms_list_free(lc->call_logs);
4664
4665         linphone_core_free_payload_types(lc);
4666         ortp_exit();
4667         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
4668 #ifdef TUNNEL_ENABLED
4669         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
4670 #endif
4671 }
4672
4673 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
4674         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
4675         // second get the list of available proxies
4676         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4677         for(;elem!=NULL;elem=elem->next){
4678                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4679                 if (linphone_proxy_config_register_enabled(cfg) ) {
4680                         if (!isReachable) {
4681                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
4682                         }else{
4683                                 cfg->commit=TRUE;
4684                         }
4685                 }
4686         }
4687         lc->netup_time=curtime;
4688         lc->network_reachable=isReachable;
4689         if(!isReachable) {
4690                 sal_reset_transports(lc->sal);
4691         }
4692 }
4693
4694 void linphone_core_refresh_registers(LinphoneCore* lc) {
4695         const MSList *elem;
4696         if (!lc->network_reachable) {
4697                 ms_warning("Refresh register operation not available (network unreachable)");
4698                 return;
4699         }
4700         elem=linphone_core_get_proxy_config_list(lc);
4701         for(;elem!=NULL;elem=elem->next){
4702                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4703                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
4704                         linphone_proxy_config_refresh_register(cfg);
4705                 }
4706         }
4707 }
4708
4709 void __linphone_core_invalidate_registers(LinphoneCore* lc){
4710         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4711         for(;elem!=NULL;elem=elem->next){
4712                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4713                 if (linphone_proxy_config_register_enabled(cfg)) {
4714                         linphone_proxy_config_edit(cfg);
4715                         linphone_proxy_config_done(cfg);
4716                 }
4717         }
4718 }
4719
4720 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
4721         //first disable automatic mode
4722         if (lc->auto_net_state_mon) {
4723                 ms_message("Disabling automatic network state monitoring");
4724                 lc->auto_net_state_mon=FALSE;
4725         }
4726         set_network_reachable(lc,isReachable, ms_time(NULL));
4727 }
4728
4729 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
4730         return lc->network_reachable;
4731 }
4732 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
4733         return sal_get_socket(lc->sal);
4734 }
4735 /**
4736  * Destroys a LinphoneCore
4737  *
4738  * @ingroup initializing
4739 **/
4740 void linphone_core_destroy(LinphoneCore *lc){
4741         linphone_core_uninit(lc);
4742         ms_free(lc);
4743 }
4744 /**
4745  * Get the number of Call
4746  *
4747  * @ingroup call_control
4748 **/
4749 int linphone_core_get_calls_nb(const LinphoneCore *lc){
4750         return  ms_list_size(lc->calls);;
4751 }
4752
4753 /**
4754  * Check if we do not have exceed the number of simultaneous call
4755  *
4756  * @ingroup call_control
4757 **/
4758 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
4759 {
4760         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
4761                 return TRUE;
4762         ms_message("Maximum amount of simultaneous calls reached !");
4763         return FALSE;
4764 }
4765
4766
4767 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
4768 {
4769         if(linphone_core_can_we_add_call(lc))
4770         {
4771                 lc->calls = ms_list_append(lc->calls,call);
4772                 return 0;
4773         }
4774         return -1;
4775 }
4776
4777 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
4778 {
4779         MSList *it;
4780         MSList *the_calls = lc->calls;
4781
4782         it=ms_list_find(the_calls,call);
4783         if (it)
4784         {
4785                 the_calls = ms_list_remove_link(the_calls,it);
4786         }
4787         else
4788         {
4789                 ms_warning("could not find the call into the list\n");
4790                 return -1;
4791         }
4792         lc->calls = the_calls;
4793         return 0;
4794 }
4795
4796 /**
4797  * Specifiies a ring back tone to be played to far end during incoming calls.
4798 **/
4799 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
4800         if (lc->sound_conf.ringback_tone){
4801                 ms_free(lc->sound_conf.ringback_tone);
4802                 lc->sound_conf.ringback_tone=NULL;
4803         }
4804         if (file)
4805                 lc->sound_conf.ringback_tone=ms_strdup(file);
4806 }
4807
4808 /**
4809  * Returns the ring back tone played to far end during incoming calls.
4810 **/
4811 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
4812         return lc->sound_conf.ringback_tone;
4813 }
4814
4815 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
4816         const MSList *elem;
4817         for(elem=from;elem!=NULL;elem=elem->next){
4818                 PayloadType *pt=(PayloadType*)elem->data;
4819                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
4820                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
4821                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
4822                         return pt;
4823                 }
4824         }
4825         return NULL;
4826 }
4827
4828
4829 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
4830         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
4831         if (result)  {
4832                 return result;
4833         } else {
4834                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
4835                 if (result) {
4836                         return result;
4837                 }
4838         }
4839         /*not found*/
4840         return NULL;
4841 }
4842
4843 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
4844         switch(gs){
4845                 case LinphoneGlobalOff:
4846                         return "LinphoneGlobalOff";
4847                 break;
4848                 case LinphoneGlobalOn:
4849                         return "LinphoneGlobalOn";
4850                 break;
4851                 case LinphoneGlobalStartup:
4852                         return "LinphoneGlobalStartup";
4853                 break;
4854                 case LinphoneGlobalShutdown:
4855                         return "LinphoneGlobalShutdown";
4856                 break;
4857         }
4858         return NULL;
4859 }
4860
4861 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
4862         return lc->state;
4863 }
4864
4865 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
4866         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
4867         linphone_core_init_default_params(lc, p);
4868         return p;
4869 }
4870
4871 const char *linphone_reason_to_string(LinphoneReason err){
4872         switch(err){
4873                 case LinphoneReasonNone:
4874                         return "No error";
4875                 case LinphoneReasonNoResponse:
4876                         return "No response";
4877                 case LinphoneReasonBadCredentials:
4878                         return "Bad credentials";
4879                 case LinphoneReasonDeclined:
4880                         return "Call declined";
4881                 case LinphoneReasonNotFound:
4882                         return "User not found";
4883                 case LinphoneReasonNotAnswered:
4884                         return "Not answered";
4885         }
4886         return "unknown error";
4887 }
4888
4889 const char *linphone_error_to_string(LinphoneReason err){
4890         return linphone_reason_to_string(err);
4891 }
4892 /**
4893  * Enables signaling keep alive
4894  */
4895 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
4896         if (enable > 0) {
4897                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
4898         } else {
4899                 sal_set_keepalive_period(lc->sal,0);
4900         }
4901 }
4902 /**
4903  * Is signaling keep alive enabled
4904  */
4905 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
4906         return sal_get_keepalive_period(lc->sal) > 0;
4907 }
4908
4909 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
4910         get_dtmf_gen(lc); /*make sure ring stream is started*/
4911         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
4912 }
4913
4914 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
4915         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
4916                 ring_stop(lc->ringstream);
4917                 lc->ringstream=NULL;
4918         }
4919 }
4920
4921 int linphone_core_get_max_calls(LinphoneCore *lc) {
4922         return lc->max_calls;
4923 }
4924 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
4925         lc->max_calls=max;
4926 }
4927
4928 typedef struct Hook{
4929         LinphoneCoreIterateHook fun;
4930         void *data;
4931 }Hook;
4932
4933 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
4934         Hook *h=ms_new(Hook,1);
4935         h->fun=hook;
4936         h->data=hook_data;
4937         return h;
4938 }
4939
4940 static void hook_invoke(Hook *h){
4941         h->fun(h->data);
4942 }
4943
4944 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
4945         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
4946 }
4947
4948 static void linphone_core_run_hooks(LinphoneCore *lc){
4949         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
4950 }
4951
4952 static void linphone_core_free_hooks(LinphoneCore *lc){
4953         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
4954         ms_list_free(lc->hooks);
4955         lc->hooks=NULL;
4956 }
4957
4958 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
4959         MSList *elem;
4960         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
4961                 Hook *h=(Hook*)elem->data;
4962                 if (h->fun==hook && h->data==hook_data){
4963                         ms_list_remove_link(lc->hooks,elem);
4964                         ms_free(h);
4965                         return;
4966                 }
4967         }
4968         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
4969 }
4970
4971 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
4972         if (lc->zrtp_secrets_cache != NULL) {
4973                 ms_free(lc->zrtp_secrets_cache);
4974         }
4975         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
4976 }
4977
4978 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
4979         if (uri == NULL) return NULL;
4980         MSList *calls=lc->calls;
4981         while(calls) {
4982                 const LinphoneCall *c=(LinphoneCall*)calls->data;
4983                 calls=calls->next;
4984                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
4985                 char *current_uri=linphone_address_as_string_uri_only(address);
4986                 if (strcmp(uri,current_uri)==0) {
4987                         ms_free(current_uri);
4988                         return c;
4989                 } else {
4990                         ms_free(current_uri);
4991                 }
4992         }
4993         return NULL;
4994 }
4995
4996
4997 /**
4998  * Check if a call will need the sound resources.
4999  *
5000  * @ingroup call_control
5001  * @param lc The LinphoneCore
5002 **/
5003 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5004         MSList *calls=lc->calls;
5005         while(calls) {
5006                 LinphoneCall *c=(LinphoneCall*)calls->data;
5007                 calls=calls->next;
5008                 switch (c->state) {
5009                         case LinphoneCallOutgoingInit:
5010                         case LinphoneCallOutgoingProgress:
5011                         case LinphoneCallOutgoingRinging:
5012                         case LinphoneCallOutgoingEarlyMedia:
5013                         case LinphoneCallConnected:
5014                         case LinphoneCallRefered:
5015                         case LinphoneCallIncomingEarlyMedia:
5016                         case LinphoneCallUpdated:
5017                                 return TRUE;
5018                         default:
5019                                 break;
5020                 }
5021         }
5022         return FALSE;
5023 }
5024
5025 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5026         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5027 }
5028
5029 /**
5030  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5031 **/
5032 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5033         switch(menc){
5034                 case LinphoneMediaEncryptionSRTP:
5035                         return ortp_srtp_supported();
5036                 case LinphoneMediaEncryptionZRTP:
5037                         return ortp_zrtp_available();
5038                 case LinphoneMediaEncryptionNone:
5039                         return TRUE;
5040         }
5041         return FALSE;
5042 }
5043
5044 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5045         const char *type="none";
5046         int ret=0;
5047         if (menc == LinphoneMediaEncryptionSRTP){
5048                 if (!ortp_srtp_supported()){
5049                         ms_warning("SRTP not supported by library.");
5050                         type="none";
5051                         ret=-1;
5052                 }else type="srtp";
5053         }else if (menc == LinphoneMediaEncryptionZRTP){
5054                 if (!ortp_zrtp_available()){
5055                         ms_warning("ZRTP not supported by library.");
5056                         type="none";
5057                         ret=-1;
5058                 }else type="zrtp";
5059         }
5060         lp_config_set_string(lc->config,"sip","media_encryption",type);
5061         return ret;
5062 }
5063
5064 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5065         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5066
5067         if (menc == NULL)
5068                 return LinphoneMediaEncryptionNone;
5069         else if (strcmp(menc, "srtp")==0)
5070                 return LinphoneMediaEncryptionSRTP;
5071         else if (strcmp(menc, "zrtp")==0)
5072                 return LinphoneMediaEncryptionZRTP;
5073         else
5074                 return LinphoneMediaEncryptionNone;
5075 }
5076
5077 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5078         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5079 }
5080
5081 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5082         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5083 }
5084
5085 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5086         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5087         params->media_encryption=linphone_core_get_media_encryption(lc);
5088         params->in_conference=FALSE;
5089 }
5090
5091 void linphone_call_zoom_video(LinphoneCall* call, float zoom_factor, float* cx, float* cy) {
5092         VideoStream* vstream = call->videostream;
5093         if (vstream) {
5094                 float zoom[3];
5095
5096                 if (zoom_factor < 1)
5097                         zoom_factor = 1;
5098                 float halfsize = 0.5 * 1.0 / zoom_factor;
5099
5100                 if ((*cx - halfsize) < 0)
5101                         *cx = 0 + halfsize;
5102                 if ((*cx + halfsize) > 1)
5103                         *cx = 1 - halfsize;
5104                 if ((*cy - halfsize) < 0)
5105                         *cy = 0 + halfsize;
5106                 if ((*cy + halfsize) > 1)
5107                         *cy = 1 - halfsize;
5108
5109                 zoom[0] = zoom_factor;
5110                 zoom[1] = *cx;
5111                 zoom[2] = *cy;
5112                 ms_filter_call_method(vstream->output, MS_VIDEO_DISPLAY_ZOOM, &zoom);
5113         }else ms_warning("Could not apply zoom: video output wasn't activated.");
5114 }
5115
5116 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5117         if (lc->device_id) ms_free(lc->device_id);
5118         lc->device_id=ms_strdup(device_id);
5119 }
5120 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5121         return lc->device_id;
5122 }
5123
5124 /**
5125  * Set the DSCP field for SIP signaling channel.
5126  *
5127  * @ingroup network_parameters
5128  * * The DSCP defines the quality of service in IP packets.
5129  *
5130 **/
5131 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5132         sal_set_dscp(lc->sal,dscp);
5133         if (linphone_core_ready(lc))
5134                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5135 }
5136
5137 /**
5138  * Get the DSCP field for SIP signaling channel.
5139  *
5140  * @ingroup network_parameters
5141  * * The DSCP defines the quality of service in IP packets.
5142  *
5143 **/
5144 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5145         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5146 }
5147
5148 /**
5149  * Set the DSCP field for outgoing audio streams.
5150  *
5151  * @ingroup network_parameters
5152  * The DSCP defines the quality of service in IP packets.
5153  *
5154 **/
5155 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5156         if (linphone_core_ready(lc))
5157                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5158 }
5159
5160 /**
5161  * Get the DSCP field for outgoing audio streams.
5162  *
5163  * @ingroup network_parameters
5164  * The DSCP defines the quality of service in IP packets.
5165  *
5166 **/
5167 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5168         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5169 }
5170
5171 /**
5172  * Set the DSCP field for outgoing video streams.
5173  *
5174  * @ingroup network_parameters
5175  * The DSCP defines the quality of service in IP packets.
5176  *
5177 **/
5178 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5179         if (linphone_core_ready(lc))
5180                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5181
5182 }
5183
5184 /**
5185  * Get the DSCP field for outgoing video streams.
5186  *
5187  * @ingroup network_parameters
5188  * The DSCP defines the quality of service in IP packets.
5189  *
5190 **/
5191 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5192         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5193 }