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

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