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