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

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