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