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                                 /* ICE candidates gathering has not finished yet, proceed with the call without ICE anyway. */
1907                                 linphone_call_delete_ice_session(call);
1908                                 linphone_call_stop_media_streams(call);
1909                         }
1910                         linphone_core_start_invite(lc,call,NULL);
1911                 }
1912                 if (call->state==LinphoneCallIncomingReceived){
1913                         elapsed=curtime-call->start_time;
1914                         ms_message("incoming call ringing for %i seconds",elapsed);
1915                         if (elapsed>lc->sip_conf.inc_timeout){
1916                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
1917                                 call->log->status=LinphoneCallMissed;
1918                                 call->reason=LinphoneReasonNotAnswered;
1919                                 linphone_core_terminate_call(lc,call);
1920                         }
1921                 }
1922         }
1923
1924         if (linphone_core_video_preview_enabled(lc)){
1925                 if (lc->previewstream==NULL && lc->calls==NULL)
1926                         toggle_video_preview(lc,TRUE);
1927 #ifdef VIDEO_ENABLED
1928                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
1929 #endif
1930         }else{
1931                 if (lc->previewstream!=NULL)
1932                         toggle_video_preview(lc,FALSE);
1933         }
1934
1935         linphone_core_run_hooks(lc);
1936         linphone_core_do_plugin_tasks(lc);
1937
1938         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
1939             (curtime-lc->netup_time)>3){
1940                 linphone_core_send_initial_subscribes(lc);
1941                 lc->initial_subscribes_sent=TRUE;
1942         }
1943
1944         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
1945                 lp_config_sync(lc->config);
1946         }
1947 }
1948
1949 /**
1950  * Interpret a call destination as supplied by the user, and returns a fully qualified
1951  * LinphoneAddress.
1952  *
1953  * A sip address should look like DisplayName <sip:username@domain:port> .
1954  * Basically this function performs the following tasks
1955  * - if a phone number is entered, prepend country prefix of the default proxy
1956  *   configuration, eventually escape the '+' by 00.
1957  * - if no domain part is supplied, append the domain name of the default proxy
1958  * - if no sip: is present, prepend it
1959  *
1960  * The result is a syntaxically correct SIP address.
1961 **/
1962
1963 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
1964         enum_lookup_res_t *enumres=NULL;
1965         char *enum_domain=NULL;
1966         LinphoneProxyConfig *proxy=lc->default_proxy;;
1967         char *tmpurl;
1968         LinphoneAddress *uri;
1969
1970         if (is_enum(url,&enum_domain)){
1971                 if (lc->vtable.display_status!=NULL)
1972                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
1973                 if (enum_lookup(enum_domain,&enumres)<0){
1974                         if (lc->vtable.display_status!=NULL)
1975                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
1976                         ms_free(enum_domain);
1977                         return NULL;
1978                 }
1979                 ms_free(enum_domain);
1980                 tmpurl=enumres->sip_address[0];
1981                 uri=linphone_address_new(tmpurl);
1982                 enum_lookup_res_free(enumres);
1983                 return uri;
1984         }
1985         /* check if we have a "sip:" */
1986         if (strstr(url,"sip:")==NULL){
1987                 /* this doesn't look like a true sip uri */
1988                 if (strchr(url,'@')!=NULL){
1989                         /* seems like sip: is missing !*/
1990                         tmpurl=ms_strdup_printf("sip:%s",url);
1991                         uri=linphone_address_new(tmpurl);
1992                         ms_free(tmpurl);
1993                         if (uri){
1994                                 return uri;
1995                         }
1996                 }
1997
1998                 if (proxy!=NULL){
1999                         /* append the proxy domain suffix */
2000                         const char *identity=linphone_proxy_config_get_identity(proxy);
2001                         char normalized_username[128];
2002                         uri=linphone_address_new(identity);
2003                         if (uri==NULL){
2004                                 return NULL;
2005                         }
2006                         linphone_address_set_display_name(uri,NULL);
2007                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2008                                                                 sizeof(normalized_username));
2009                         linphone_address_set_username(uri,normalized_username);
2010                         return uri;
2011                 }else return NULL;
2012         }
2013         uri=linphone_address_new(url);
2014         if (uri!=NULL){
2015                 return uri;
2016         }
2017         /* else we could not do anything with url given by user, so display an error */
2018         if (lc->vtable.display_warning!=NULL){
2019                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2020         }
2021         return NULL;
2022 }
2023
2024 /**
2025  * Returns the default identity SIP address.
2026  *
2027  * @ingroup proxies
2028  * This is an helper function:
2029  *
2030  * If no default proxy is set, this will return the primary contact (
2031  * see linphone_core_get_primary_contact() ). If a default proxy is set
2032  * it returns the registered identity on the proxy.
2033 **/
2034 const char * linphone_core_get_identity(LinphoneCore *lc){
2035         LinphoneProxyConfig *proxy=NULL;
2036         const char *from;
2037         linphone_core_get_default_proxy(lc,&proxy);
2038         if (proxy!=NULL) {
2039                 from=linphone_proxy_config_get_identity(proxy);
2040         }else from=linphone_core_get_primary_contact(lc);
2041         return from;
2042 }
2043
2044 const char * linphone_core_get_route(LinphoneCore *lc){
2045         LinphoneProxyConfig *proxy=NULL;
2046         const char *route=NULL;
2047         linphone_core_get_default_proxy(lc,&proxy);
2048         if (proxy!=NULL) {
2049                 route=linphone_proxy_config_get_route(proxy);
2050         }
2051         return route;
2052 }
2053
2054 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2055         if (call->refer_pending){
2056                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2057                 LinphoneCall *newcall;
2058                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2059                 cp->referer=call;
2060                 ms_message("Starting new call to refered address %s",call->refer_to);
2061                 call->refer_pending=FALSE;
2062                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2063                 linphone_call_params_destroy(cp);
2064                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2065         }
2066 }
2067
2068 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2069         if (referer->op!=NULL){
2070                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2071         }
2072 }
2073
2074 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2075         const MSList *elem;
2076         LinphoneProxyConfig *found_cfg=NULL;
2077         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2078
2079         /*always prefer the default proxy if it is matching the destination uri*/
2080         if (default_cfg){
2081                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2082                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2083                         return default_cfg;
2084         }
2085
2086         /*otherwise iterate through the other proxy config and return the first matching*/
2087         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2088                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2089                 const char *domain=linphone_proxy_config_get_domain(cfg);
2090                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2091                         found_cfg=cfg;
2092                         break;
2093                 }
2094         }
2095         return found_cfg;
2096 }
2097
2098 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2099         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2100         if (cfg==NULL)
2101                 linphone_core_get_default_proxy (lc,&cfg);
2102         if (cfg!=NULL){
2103                 if (route) *route=linphone_proxy_config_get_route(cfg);
2104                 return linphone_proxy_config_get_identity (cfg);
2105         }
2106         return linphone_core_get_primary_contact (lc);
2107 }
2108
2109 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2110         LinphoneAddress *ctt;
2111         const char *localip=call->localip;
2112
2113         /* first use user's supplied ip address if asked*/
2114         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2115                 ctt=linphone_core_get_primary_contact_parsed(lc);
2116                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2117                         linphone_core_get_nat_address_resolved(lc));
2118         }
2119
2120         /* if already choosed, don't change it */
2121         if (call->op && sal_op_get_contact(call->op)!=NULL){
2122                 return NULL;
2123         }
2124         /* if the ping OPTIONS request succeeded use the contact guessed from the
2125          received, rport*/
2126         if (call->ping_op){
2127                 const char *guessed=sal_op_get_contact(call->ping_op);
2128                 if (guessed){
2129                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2130                         return ms_strdup(guessed);
2131                 }
2132         }
2133
2134         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2135         if (dest_proxy && dest_proxy->op){
2136                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2137                 if (fixed_contact) {
2138                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2139                         return ms_strdup(fixed_contact);
2140                 }
2141         }
2142
2143         ctt=linphone_core_get_primary_contact_parsed(lc);
2144
2145         if (ctt!=NULL){
2146                 char *ret;
2147                 /*otherwise use supllied localip*/
2148                 linphone_address_set_domain(ctt,localip);
2149                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2150                 ret=linphone_address_as_string_uri_only(ctt);
2151                 linphone_address_destroy(ctt);
2152                 ms_message("Contact has been fixed using local ip to %s",ret);
2153                 return ret;
2154         }
2155         return NULL;
2156 }
2157
2158 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2159         bool_t ice_ready = FALSE;
2160         bool_t ping_ready = FALSE;
2161
2162         if (call->ice_session != NULL) {
2163                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2164         } else {
2165                 ice_ready = TRUE;
2166         }
2167         if (call->ping_op != NULL) {
2168                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2169         } else {
2170                 ping_ready = TRUE;
2171         }
2172
2173         if ((ice_ready == TRUE) && (ping_ready == TRUE)) {
2174                 return linphone_core_start_invite(lc, call, dest_proxy);
2175         }
2176         return 0;
2177 }
2178
2179 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2180         int err;
2181         char *contact;
2182         char *real_url,*barmsg;
2183         char *from;
2184
2185         /*try to be best-effort in giving real local or routable contact address */
2186         contact=get_fixed_contact(lc,call,dest_proxy);
2187         if (contact){
2188                 sal_op_set_contact(call->op, contact);
2189                 ms_free(contact);
2190         }
2191         linphone_core_stop_dtmf_stream(lc);
2192         linphone_call_init_media_streams(call);
2193         if (lc->ringstream==NULL)
2194                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2195         if (!lc->sip_conf.sdp_200_ack){
2196                 call->media_pending=TRUE;
2197                 if (call->ice_session != NULL)
2198                         linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2199                 sal_call_set_local_media_description(call->op,call->localdesc);
2200         }
2201         real_url=linphone_address_as_string(call->log->to);
2202         from=linphone_address_as_string(call->log->from);
2203         err=sal_call(call->op,from,real_url);
2204
2205         if (lc->sip_conf.sdp_200_ack){
2206                 call->media_pending=TRUE;
2207                 sal_call_set_local_media_description(call->op,call->localdesc);
2208         }
2209         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2210         if (lc->vtable.display_status!=NULL)
2211                 lc->vtable.display_status(lc,barmsg);
2212         ms_free(barmsg);
2213
2214         if (err<0){
2215                 if (lc->vtable.display_status!=NULL)
2216                         lc->vtable.display_status(lc,_("Could not call"));
2217                 linphone_call_stop_media_streams(call);
2218                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2219         }else {
2220                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2221         }
2222         ms_free(real_url);
2223         ms_free(from);
2224         return err;
2225 }
2226
2227 /**
2228  * Initiates an outgoing call
2229  *
2230  * @ingroup call_control
2231  * @param lc the LinphoneCore object
2232  * @param url the destination of the call (sip address, or phone number).
2233  *
2234  * The application doesn't own a reference to the returned LinphoneCall object.
2235  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2236  *
2237  * @return a LinphoneCall object or NULL in case of failure
2238 **/
2239 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2240         LinphoneCall *call;
2241         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2242         p->has_video &= !!lc->video_policy.automatically_initiate;
2243         call=linphone_core_invite_with_params(lc,url,p);
2244         linphone_call_params_destroy(p);
2245         return call;
2246 }
2247
2248
2249 /**
2250  * Initiates an outgoing call according to supplied call parameters
2251  *
2252  * @ingroup call_control
2253  * @param lc the LinphoneCore object
2254  * @param url the destination of the call (sip address, or phone number).
2255  * @param p call parameters
2256  *
2257  * The application doesn't own a reference to the returned LinphoneCall object.
2258  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2259  *
2260  * @return a LinphoneCall object or NULL in case of failure
2261 **/
2262 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2263         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2264         if (addr){
2265                 LinphoneCall *call;
2266                 call=linphone_core_invite_address_with_params(lc,addr,p);
2267                 linphone_address_destroy(addr);
2268                 return call;
2269         }
2270         return NULL;
2271 }
2272
2273 /**
2274  * Initiates an outgoing call given a destination LinphoneAddress
2275  *
2276  * @ingroup call_control
2277  * @param lc the LinphoneCore object
2278  * @param addr the destination of the call (sip address).
2279  *
2280  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2281  * created by linphone_core_interpret_url().
2282  * The application doesn't own a reference to the returned LinphoneCall object.
2283  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2284  *
2285  * @return a LinphoneCall object or NULL in case of failure
2286 **/
2287 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2288         LinphoneCall *call;
2289         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2290         p->has_video &= !!lc->video_policy.automatically_initiate;
2291         call=linphone_core_invite_address_with_params (lc,addr,p);
2292         linphone_call_params_destroy(p);
2293         return call;
2294 }
2295
2296
2297 /**
2298  * Initiates an outgoing call given a destination LinphoneAddress
2299  *
2300  * @ingroup call_control
2301  * @param lc the LinphoneCore object
2302  * @param addr the destination of the call (sip address).
2303         @param params call parameters
2304  *
2305  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2306  * created by linphone_core_interpret_url().
2307  * The application doesn't own a reference to the returned LinphoneCall object.
2308  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2309  *
2310  * @return a LinphoneCall object or NULL in case of failure
2311 **/
2312 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2313 {
2314         const char *route=NULL;
2315         const char *from=NULL;
2316         LinphoneProxyConfig *proxy=NULL;
2317         LinphoneAddress *parsed_url2=NULL;
2318         char *real_url=NULL;
2319         LinphoneProxyConfig *dest_proxy=NULL;
2320         LinphoneCall *call;
2321         bool_t use_ice = FALSE;
2322
2323         linphone_core_preempt_sound_resources(lc);
2324
2325         if(!linphone_core_can_we_add_call(lc)){
2326                 if (lc->vtable.display_warning)
2327                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2328                 return NULL;
2329         }
2330         linphone_core_get_default_proxy(lc,&proxy);
2331         route=linphone_core_get_route(lc);
2332
2333         real_url=linphone_address_as_string(addr);
2334         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2335
2336         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2337                 ms_message("Overriding default proxy setting for this call:");
2338                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2339         }
2340
2341         if (dest_proxy!=NULL)
2342                 from=linphone_proxy_config_get_identity(dest_proxy);
2343         else if (proxy!=NULL)
2344                 from=linphone_proxy_config_get_identity(proxy);
2345
2346         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2347         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2348
2349         parsed_url2=linphone_address_new(from);
2350
2351         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2352         sal_op_set_route(call->op,route);
2353
2354         if(linphone_core_add_call(lc,call)!= 0)
2355         {
2356                 ms_warning("we had a problem in adding the call into the invite ... weird");
2357                 linphone_call_unref(call);
2358                 return NULL;
2359         }
2360         /* this call becomes now the current one*/
2361         lc->current_call=call;
2362         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2363         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2364                 /* Defer the start of the call after the ICE gathering process. */
2365                 linphone_call_init_media_streams(call);
2366                 linphone_call_start_media_streams_for_ice_gathering(call);
2367                 call->start_time=time(NULL);
2368                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2369                         /* Ice candidates gathering failed, proceed with the call anyway. */
2370                         linphone_call_delete_ice_session(call);
2371                         linphone_call_stop_media_streams(call);
2372                 } else {
2373                         use_ice = TRUE;
2374                 }
2375         }
2376
2377         if (dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2378                 /*defer the start of the call after the OPTIONS ping*/
2379                 call->ping_replied=FALSE;
2380                 call->ping_op=sal_op_new(lc->sal);
2381                 sal_ping(call->ping_op,from,real_url);
2382                 sal_op_set_user_pointer(call->ping_op,call);
2383                 call->start_time=time(NULL);
2384         }else{
2385                 if (use_ice==FALSE) linphone_core_start_invite(lc,call,dest_proxy);
2386         }
2387
2388         if (real_url!=NULL) ms_free(real_url);
2389         return call;
2390 }
2391
2392 /**
2393  * Performs a simple call transfer to the specified destination.
2394  *
2395  * The remote endpoint is expected to issue a new call to the specified destination.
2396  * The current call remains active and thus can be later paused or terminated.
2397 **/
2398 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2399 {
2400         char *real_url=NULL;
2401         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2402
2403         if (!real_parsed_url){
2404                 /* bad url */
2405                 return -1;
2406         }
2407         if (call==NULL){
2408                 ms_warning("No established call to refer.");
2409                 return -1;
2410         }
2411         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2412         real_url=linphone_address_as_string (real_parsed_url);
2413         sal_call_refer(call->op,real_url);
2414         ms_free(real_url);
2415         linphone_address_destroy(real_parsed_url);
2416         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2417         return 0;
2418 }
2419
2420 /**
2421  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2422  * @param lc linphone core object
2423  * @param call a running call you want to transfer
2424  * @param dest a running call whose remote person will receive the transfer
2425  *
2426  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2427  * The destination call is a call previously established to introduce the transfered person.
2428  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2429  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2430  * close the call with us (the 'dest' call).
2431 **/
2432 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2433         int result = sal_call_refer_with_replaces (call->op,dest->op);
2434         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2435         return result;
2436 }
2437
2438 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2439         LinphoneCall *call = linphone_core_get_current_call(lc);
2440         if(call != NULL)
2441         {
2442                 if(call->dir==LinphoneCallIncoming
2443                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2444                         return TRUE;
2445         }
2446         return FALSE;
2447 }
2448
2449 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2450         char *barmesg;
2451         char *tmp;
2452         LinphoneAddress *from_parsed;
2453         SalMediaDescription *md;
2454         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2455         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2456
2457         if (call->ice_session != NULL)
2458                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2459         md=sal_call_get_final_media_description(call->op);
2460         if (md && sal_media_description_empty(md)){
2461                 sal_call_decline(call->op,SalReasonMedia,NULL);
2462                 linphone_call_unref(call);
2463                 return;
2464         }
2465
2466         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2467         linphone_address_clean(from_parsed);
2468         tmp=linphone_address_as_string(from_parsed);
2469         linphone_address_destroy(from_parsed);
2470         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2471             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2472         if (lc->vtable.show) lc->vtable.show(lc);
2473         if (lc->vtable.display_status)
2474             lc->vtable.display_status(lc,barmesg);
2475
2476         /* play the ring if this is the only call*/
2477         if (ms_list_size(lc->calls)==1){
2478                 lc->current_call=call;
2479                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2480                         ring_stop(lc->ringstream);
2481                         lc->ringstream=NULL;
2482                         lc->dmfs_playing_start_time=0;
2483                 }
2484                 if (lc->sound_conf.ring_sndcard!=NULL){
2485                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2486                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2487                                 ms_message("Starting local ring...");
2488                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2489                         }
2490                         else
2491                         {
2492                                 ms_message("the local ring is already started");
2493                         }
2494                 }
2495         }else{
2496                 /* else play a tone within the context of the current call */
2497                 call->ringing_beep=TRUE;
2498                 linphone_core_play_tone(lc);
2499         }
2500
2501         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2502
2503         if (call->state==LinphoneCallIncomingReceived){
2504                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2505
2506                 if (propose_early_media || ringback_tone!=NULL){
2507                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2508                         md=sal_call_get_final_media_description(call->op);
2509                         linphone_core_update_streams(lc,call,md);
2510                 }
2511                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2512                         linphone_core_accept_call(lc,call);
2513                 }
2514         }
2515         linphone_call_unref(call);
2516
2517         ms_free(barmesg);
2518         ms_free(tmp);
2519 }
2520
2521 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2522         const char *subject;
2523         call->camera_active=call->params.has_video;
2524         update_local_media_description(lc,call);
2525         if (call->ice_session != NULL)
2526                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2527
2528         if (call->params.in_conference){
2529                 subject="Conference";
2530         }else{
2531                 subject="Media change";
2532         }
2533         if (lc->vtable.display_status)
2534                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2535         sal_call_set_local_media_description (call->op,call->localdesc);
2536         return sal_call_update(call->op,subject);
2537 }
2538
2539 /**
2540  * @ingroup call_control
2541  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2542  *
2543  * In this version this is limited to the following use cases:
2544  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2545  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2546  *
2547  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2548  * @param lc the core
2549  * @param call the call to be updated
2550  * @param params the new call parameters to use. (may be NULL)
2551  * @return 0 if successful, -1 otherwise.
2552 **/
2553 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2554         int err=0;
2555         if (params!=NULL){
2556 #ifdef VIDEO_ENABLED
2557                 bool_t has_video = call->params.has_video;
2558                 if ((call->ice_session != NULL) && (call->videostream != NULL) && !params->has_video) {
2559                         ice_session_remove_check_list(call->ice_session, call->videostream->ice_check_list);
2560                         call->videostream->ice_check_list = NULL;
2561                 }
2562                 call->params = *params;
2563                 if ((call->ice_session != NULL) && (ice_session_state(call->ice_session) != IS_Completed) && !has_video && params->has_video) {
2564                         /* Defer call update until the ICE candidates gathering process has finished. */
2565                         ms_message("Defer call update to gather ICE candidates");
2566                         update_local_media_description(lc, call);
2567                         linphone_call_init_video_stream(call);
2568                         video_stream_prepare_video(call->videostream);
2569                         if (linphone_core_gather_ice_candidates(lc,call)<0) {
2570                                 /* Ice candidates gathering failed, proceed with the call anyway. */
2571                                 linphone_call_delete_ice_session(call);
2572                         } else return err;
2573                 }
2574 #endif
2575                 err = linphone_core_start_update_call(lc, call);
2576         }else{
2577 #ifdef VIDEO_ENABLED
2578                 if (call->videostream!=NULL){
2579                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2580                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2581                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2582                         }else video_stream_update_video_params(call->videostream);
2583                 }
2584 #endif
2585         }
2586
2587         return err;
2588 }
2589
2590 /**
2591  * @ingroup call_control
2592  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2593  *
2594  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2595  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2596  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2597  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2598  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2599  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2600  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2601  *
2602  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2603 **/
2604 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2605         if (call->state==LinphoneCallUpdatedByRemote){
2606                 call->defer_update=TRUE;
2607                 return 0;
2608         }
2609         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2610         return -1;
2611 }
2612
2613 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2614         SalMediaDescription *md;
2615         if (call->ice_session != NULL) {
2616                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2617                         /* Defer the sending of the answer until there are no losing pairs left. */
2618                         return 0;
2619                 }
2620                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2621         }
2622         sal_call_set_local_media_description(call->op,call->localdesc);
2623         sal_call_accept(call->op);
2624         md=sal_call_get_final_media_description(call->op);
2625         if (md && !sal_media_description_empty(md))
2626                 linphone_core_update_streams (lc,call,md);
2627         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2628         return 0;
2629 }
2630
2631 /**
2632  * @ingroup call_control
2633  * Accept call modifications initiated by other end.
2634  *
2635  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2636  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2637  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2638  * requested by the other party, such as whether a video stream is requested.
2639  *
2640  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2641  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2642  * If params is not NULL, then the update will be accepted according to the parameters passed.
2643  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2644  * (see linphone_call_params_enable_video()).
2645  * @param lc the linphone core object.
2646  * @param call the LinphoneCall object
2647  * @param params a LinphoneCallParams object describing the call parameters to accept.
2648  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2649 **/
2650 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2651         bool_t old_has_video = call->params.has_video;
2652         if (call->state!=LinphoneCallUpdatedByRemote){
2653                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2654                          linphone_call_state_to_string(call->state));
2655                 return -1;
2656         }
2657         if (params==NULL){
2658                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2659         }else
2660                 call->params=*params;
2661
2662         if (call->current_params.in_conference) {
2663                 ms_warning("Video isn't supported in conference");
2664                 call->params.has_video = FALSE;
2665         }
2666         call->camera_active=call->params.has_video;
2667         update_local_media_description(lc,call);
2668         if (call->ice_session != NULL) {
2669                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2670 #ifdef VIDEO_ENABLED
2671                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2672                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2673                                 linphone_call_init_video_stream(call);
2674                                 video_stream_prepare_video(call->videostream);
2675                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2676                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2677                                         linphone_call_delete_ice_session(call);
2678                                 } else return 0;
2679                         }
2680                 }
2681 #endif
2682         }
2683         linphone_core_start_accept_call_update(lc, call);
2684         return 0;
2685 }
2686
2687 /**
2688  * Accept an incoming call.
2689  *
2690  * @ingroup call_control
2691  * Basically the application is notified of incoming calls within the
2692  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2693  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2694  * The application can later accept the call using this method.
2695  * @param lc the LinphoneCore object
2696  * @param call the LinphoneCall object representing the call to be answered.
2697  *
2698 **/
2699 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
2700         return linphone_core_accept_call_with_params(lc,call,NULL);
2701 }
2702
2703 /**
2704  * Accept an incoming call, with parameters.
2705  *
2706  * @ingroup call_control
2707  * Basically the application is notified of incoming calls within the
2708  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2709  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2710  * The application can later accept the call using
2711  * this method.
2712  * @param lc the LinphoneCore object
2713  * @param call the LinphoneCall object representing the call to be answered.
2714  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
2715  *
2716 **/
2717 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
2718 {
2719         LinphoneProxyConfig *cfg=NULL,*dest_proxy=NULL;
2720         const char *contact=NULL;
2721         SalOp *replaced;
2722         SalMediaDescription *new_md;
2723         bool_t was_ringing=FALSE;
2724
2725         if (call==NULL){
2726                 //if just one call is present answer the only one ...
2727                 if(linphone_core_get_calls_nb (lc) != 1)
2728                         return -1;
2729                 else
2730                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
2731         }
2732
2733         if (call->state==LinphoneCallConnected){
2734                 /*call already accepted*/
2735                 return -1;
2736         }
2737
2738         /* check if this call is supposed to replace an already running one*/
2739         replaced=sal_call_get_replaces(call->op);
2740         if (replaced){
2741                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
2742                 if (rc){
2743                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
2744                                    call,rc);
2745                         linphone_core_terminate_call(lc,rc);
2746                 }
2747         }
2748
2749         if (lc->current_call!=call){
2750                 linphone_core_preempt_sound_resources(lc);
2751         }
2752
2753         /*stop ringing */
2754         if (lc->ringstream!=NULL) {
2755                 ms_message("stop ringing");
2756                 ring_stop(lc->ringstream);
2757                 ms_message("ring stopped");
2758                 lc->ringstream=NULL;
2759                 was_ringing=TRUE;
2760         }
2761         if (call->ringing_beep){
2762                 linphone_core_stop_dtmf(lc);
2763                 call->ringing_beep=FALSE;
2764         }
2765
2766         linphone_core_get_default_proxy(lc,&cfg);
2767         dest_proxy=cfg;
2768         dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
2769
2770         if (cfg!=dest_proxy && dest_proxy!=NULL) {
2771                 ms_message("Overriding default proxy setting for this call:");
2772                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2773         }
2774         /*try to be best-effort in giving real local or routable contact address*/
2775         contact=get_fixed_contact(lc,call,dest_proxy);
2776         if (contact)
2777                 sal_op_set_contact(call->op,contact);
2778
2779         if (call->audiostream==NULL)
2780                 linphone_call_init_media_streams(call);
2781         if (!was_ringing && call->audiostream->ticker==NULL){
2782                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2783         }
2784
2785         if (params){
2786                 call->params=*params;
2787                 call->camera_active=call->params.has_video;
2788                 update_local_media_description(lc,call);
2789                 sal_call_set_local_media_description(call->op,call->localdesc);
2790         }
2791
2792         sal_call_accept(call->op);
2793         if (lc->vtable.display_status!=NULL)
2794                 lc->vtable.display_status(lc,_("Connected."));
2795         lc->current_call=call;
2796         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
2797         new_md=sal_call_get_final_media_description(call->op);
2798         linphone_core_update_streams(lc, call, new_md);
2799         if (new_md){
2800                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2801         }else call->media_pending=TRUE;
2802
2803         ms_message("call answered.");
2804         return 0;
2805 }
2806
2807 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
2808         sal_call_terminate(call->op);
2809
2810         /*stop ringing*/
2811         if (lc->ringstream!=NULL) {
2812                 ring_stop(lc->ringstream);
2813                 lc->ringstream=NULL;
2814         }
2815         linphone_call_stop_media_streams(call);
2816         if (lc->vtable.display_status!=NULL)
2817                 lc->vtable.display_status(lc,_("Call aborted") );
2818         linphone_call_set_state(call,LinphoneCallError,error);
2819         return 0;
2820 }
2821
2822 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
2823         if (call->state==LinphoneCallIncomingReceived){
2824                 if (call->reason!=LinphoneReasonNotAnswered)
2825                         call->reason=LinphoneReasonDeclined;
2826         }
2827         /*stop ringing*/
2828         if (lc->ringstream!=NULL) {
2829                 ring_stop(lc->ringstream);
2830                 lc->ringstream=NULL;
2831         }
2832
2833         linphone_call_stop_media_streams(call);
2834         if (lc->vtable.display_status!=NULL)
2835                 lc->vtable.display_status(lc,_("Call ended") );
2836 }
2837
2838 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
2839         if (call->state==LinphoneCallIncomingReceived){
2840                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
2841                 call->reason=LinphoneReasonDeclined;
2842                 terminate_call(lc,call);
2843                 linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2844         }else{
2845                 ms_error("Bad state for call redirection.");
2846                 return -1;
2847     }
2848         return 0;
2849 }
2850
2851
2852 /**
2853  * Terminates a call.
2854  *
2855  * @ingroup call_control
2856  * @param lc the LinphoneCore
2857  * @param the_call the LinphoneCall object representing the call to be terminated.
2858 **/
2859 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
2860 {
2861         LinphoneCall *call;
2862         if (the_call == NULL){
2863                 call = linphone_core_get_current_call(lc);
2864                 if (ms_list_size(lc->calls)==1){
2865                         call=(LinphoneCall*)lc->calls->data;
2866                 }else{
2867                         ms_warning("No unique call to terminate !");
2868                         return -1;
2869                 }
2870         }
2871         else
2872         {
2873                 call = the_call;
2874         }
2875         sal_call_terminate(call->op);
2876         terminate_call(lc,call);
2877
2878         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2879         return 0;
2880 }
2881
2882 /**
2883  * Terminates all the calls.
2884  *
2885  * @ingroup call_control
2886  * @param lc The LinphoneCore
2887 **/
2888 int linphone_core_terminate_all_calls(LinphoneCore *lc){
2889         MSList *calls=lc->calls;
2890         while(calls) {
2891                 LinphoneCall *c=(LinphoneCall*)calls->data;
2892                 calls=calls->next;
2893                 linphone_core_terminate_call(lc,c);
2894         }
2895         return 0;
2896 }
2897
2898 /**
2899  * Returns the current list of calls.
2900  *
2901  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
2902  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
2903  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
2904  *
2905  * @ingroup call_control
2906 **/
2907 const MSList *linphone_core_get_calls(LinphoneCore *lc)
2908 {
2909         return lc->calls;
2910 }
2911
2912 /**
2913  * Returns TRUE if there is a call running.
2914  *
2915  * @ingroup call_control
2916 **/
2917 bool_t linphone_core_in_call(const LinphoneCore *lc){
2918         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
2919 }
2920
2921 /**
2922  * Returns The _LinphoneCall struct of the current call if one is in call
2923  *
2924  * @ingroup call_control
2925 **/
2926 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
2927 {
2928         return lc->current_call;
2929 }
2930
2931 /**
2932  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
2933  * this file will be played to the remote user.
2934  *
2935  * @ingroup call_control
2936 **/
2937 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
2938 {
2939         const char *subject=NULL;
2940
2941         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
2942                 ms_warning("Cannot pause this call, it is not active.");
2943                 return -1;
2944         }
2945         update_local_media_description(lc,call);
2946         if (call->ice_session != NULL)
2947                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2948         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
2949                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
2950                 subject="Call on hold";
2951         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
2952                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
2953                 subject="Call on hold for me too";
2954         }else{
2955                 ms_error("No reason to pause this call, it is already paused or inactive.");
2956                 return -1;
2957         }
2958         sal_call_set_local_media_description(call->op,call->localdesc);
2959         if (sal_call_update(call->op,subject) != 0){
2960                 if (lc->vtable.display_warning)
2961                         lc->vtable.display_warning(lc,_("Could not pause the call"));
2962         }
2963         lc->current_call=NULL;
2964         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
2965         if (lc->vtable.display_status)
2966                 lc->vtable.display_status(lc,_("Pausing the current call..."));
2967         if (call->audiostream || call->videostream)
2968                 linphone_call_stop_media_streams (call);
2969         return 0;
2970 }
2971
2972 /**
2973  * Pause all currently running calls.
2974 **/
2975 int linphone_core_pause_all_calls(LinphoneCore *lc){
2976         const MSList *elem;
2977         for(elem=lc->calls;elem!=NULL;elem=elem->next){
2978                 LinphoneCall *call=(LinphoneCall *)elem->data;
2979                 LinphoneCallState cs=linphone_call_get_state(call);
2980                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
2981                         linphone_core_pause_call(lc,call);
2982                 }
2983         }
2984         return 0;
2985 }
2986
2987 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
2988         LinphoneCall *current_call;
2989         if (linphone_core_is_in_conference(lc)){
2990                 linphone_core_leave_conference(lc);
2991                 return;
2992         }
2993         current_call=linphone_core_get_current_call(lc);
2994         if(current_call != NULL){
2995                 ms_message("Pausing automatically the current call.");
2996                 linphone_core_pause_call(lc,current_call);
2997         }
2998 }
2999
3000 /**
3001  * Resumes the call.
3002  *
3003  * @ingroup call_control
3004 **/
3005 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3006 {
3007         char temp[255]={0};
3008         LinphoneCall *call = the_call;
3009         const char *subject="Call resuming";
3010
3011         if(call->state!=LinphoneCallPaused ){
3012                 ms_warning("we cannot resume a call that has not been established and paused before");
3013                 return -1;
3014         }
3015         if (call->params.in_conference==FALSE){
3016                 linphone_core_preempt_sound_resources(lc);
3017                 ms_message("Resuming call %p",call);
3018         }
3019
3020         /* Stop playing music immediately. If remote side is a conference it
3021          prevents the participants to hear it while the 200OK comes back.*/
3022         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3023
3024         update_local_media_description(lc,the_call);
3025         if (call->ice_session != NULL)
3026                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3027         sal_call_set_local_media_description(call->op,call->localdesc);
3028         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3029         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3030         if(sal_call_update(call->op,subject) != 0){
3031                 return -1;
3032         }
3033         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3034         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3035         if (lc->vtable.display_status)
3036                 lc->vtable.display_status(lc,temp);
3037         return 0;
3038 }
3039
3040 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3041         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3042         return !linphone_address_weak_equal (addr,raddr);
3043 }
3044
3045 /**
3046  * Get the call with the remote_address specified
3047  * @param lc
3048  * @param remote_address
3049  * @return the LinphoneCall of the call if found
3050  */
3051 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3052         LinphoneAddress *raddr=linphone_address_new(remote_address);
3053         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3054         if (elem) return (LinphoneCall*) elem->data;
3055         return NULL;
3056 }
3057
3058 int linphone_core_send_publish(LinphoneCore *lc,
3059                                LinphoneOnlineStatus presence_mode)
3060 {
3061         const MSList *elem;
3062         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3063                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3064                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3065         }
3066         return 0;
3067 }
3068
3069 /**
3070  * Set the incoming call timeout in seconds.
3071  *
3072  * @ingroup call_control
3073  * If an incoming call isn't answered for this timeout period, it is
3074  * automatically declined.
3075 **/
3076 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3077         lc->sip_conf.inc_timeout=seconds;
3078 }
3079
3080 /**
3081  * Returns the incoming call timeout
3082  *
3083  * @ingroup call_control
3084  * See linphone_core_set_inc_timeout() for details.
3085 **/
3086 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3087         return lc->sip_conf.inc_timeout;
3088 }
3089
3090 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3091                                                                                                         const char *contact,
3092                                                                                                         LinphoneOnlineStatus presence_mode)
3093 {
3094         if (minutes_away>0) lc->minutes_away=minutes_away;
3095
3096         if (lc->alt_contact!=NULL) {
3097                 ms_free(lc->alt_contact);
3098                 lc->alt_contact=NULL;
3099         }
3100         if (contact) lc->alt_contact=ms_strdup(contact);
3101         if (lc->presence_mode!=presence_mode){
3102                 linphone_core_notify_all_friends(lc,presence_mode);
3103                 /*
3104                    Improve the use of all LINPHONE_STATUS available.
3105                    !TODO Do not mix "presence status" with "answer status code"..
3106                    Use correct parameter to follow sip_if_match/sip_etag.
3107                  */
3108                 linphone_core_send_publish(lc,presence_mode);
3109         }
3110         lc->presence_mode=presence_mode;
3111 }
3112
3113 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3114         return lc->presence_mode;
3115 }
3116
3117 /**
3118  * Get playback sound level in 0-100 scale.
3119  *
3120  * @ingroup media_parameters
3121 **/
3122 int linphone_core_get_play_level(LinphoneCore *lc)
3123 {
3124         return lc->sound_conf.play_lev;
3125 }
3126
3127 /**
3128  * Get ring sound level in 0-100 scale
3129  *
3130  * @ingroup media_parameters
3131 **/
3132 int linphone_core_get_ring_level(LinphoneCore *lc)
3133 {
3134         return lc->sound_conf.ring_lev;
3135 }
3136
3137 /**
3138  * Get sound capture level in 0-100 scale
3139  *
3140  * @ingroup media_parameters
3141 **/
3142 int linphone_core_get_rec_level(LinphoneCore *lc){
3143         return lc->sound_conf.rec_lev;
3144 }
3145
3146 /**
3147  * Set sound ring level in 0-100 scale
3148  *
3149  * @ingroup media_parameters
3150 **/
3151 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3152         MSSndCard *sndcard;
3153         lc->sound_conf.ring_lev=level;
3154         sndcard=lc->sound_conf.ring_sndcard;
3155         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3156 }
3157
3158 /**
3159  * Allow to control play level before entering sound card:  gain in db
3160  *
3161  * @ingroup media_parameters
3162 **/
3163 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3164         float gain=gaindb;
3165         LinphoneCall *call=linphone_core_get_current_call (lc);
3166         AudioStream *st;
3167
3168         lc->sound_conf.soft_play_lev=gaindb;
3169
3170         if (call==NULL || (st=call->audiostream)==NULL){
3171                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3172                 return;
3173         }
3174         if (st->volrecv){
3175                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3176         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3177 }
3178
3179 /**
3180  * Get playback gain in db before entering  sound card.
3181  *
3182  * @ingroup media_parameters
3183 **/
3184 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3185         return lc->sound_conf.soft_play_lev;
3186 }
3187
3188 /**
3189  * Set sound playback level in 0-100 scale
3190  *
3191  * @ingroup media_parameters
3192 **/
3193 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3194         MSSndCard *sndcard;
3195         lc->sound_conf.play_lev=level;
3196         sndcard=lc->sound_conf.play_sndcard;
3197         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3198 }
3199
3200 /**
3201  * Set sound capture level in 0-100 scale
3202  *
3203  * @ingroup media_parameters
3204 **/
3205 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3206 {
3207         MSSndCard *sndcard;
3208         lc->sound_conf.rec_lev=level;
3209         sndcard=lc->sound_conf.capt_sndcard;
3210         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3211 }
3212
3213 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3214         MSSndCard *sndcard=NULL;
3215         if (devid!=NULL){
3216                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3217                 if (sndcard!=NULL &&
3218                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3219                         ms_warning("%s card does not have the %s capability, ignoring.",
3220                                 devid,
3221                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3222                         sndcard=NULL;
3223                 }
3224         }
3225         if (sndcard==NULL) {
3226                 /* get a card that has read+write capabilities */
3227                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3228                 /* otherwise refine to the first card having the right capability*/
3229                 if (sndcard==NULL){
3230                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3231                         for(;elem!=NULL;elem=elem->next){
3232                                 sndcard=(MSSndCard*)elem->data;
3233                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3234                         }
3235                 }
3236                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3237                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3238                         if (elem) sndcard=(MSSndCard*)elem->data;
3239         }
3240         }
3241         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3242         return sndcard;
3243 }
3244
3245 /**
3246  * Returns true if the specified sound device can capture sound.
3247  *
3248  * @ingroup media_parameters
3249  * @param lc The LinphoneCore object
3250  * @param devid the device name as returned by linphone_core_get_sound_devices()
3251 **/
3252 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3253         MSSndCard *sndcard;
3254         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3255         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3256         return FALSE;
3257 }
3258
3259 /**
3260  * Returns true if the specified sound device can play sound.
3261  *
3262  * @ingroup media_parameters
3263  * @param lc The LinphoneCore object
3264  * @param devid the device name as returned by linphone_core_get_sound_devices()
3265 **/
3266 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3267         MSSndCard *sndcard;
3268         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3269         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3270         return FALSE;
3271 }
3272
3273 /**
3274  * Sets the sound device used for ringing.
3275  *
3276  * @ingroup media_parameters
3277  * @param lc The LinphoneCore object
3278  * @param devid the device name as returned by linphone_core_get_sound_devices()
3279 **/
3280 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3281         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3282         lc->sound_conf.ring_sndcard=card;
3283         if (card && linphone_core_ready(lc))
3284                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3285         return 0;
3286 }
3287
3288 /**
3289  * Sets the sound device used for playback.
3290  *
3291  * @ingroup media_parameters
3292  * @param lc The LinphoneCore object
3293  * @param devid the device name as returned by linphone_core_get_sound_devices()
3294 **/
3295 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3296         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3297         lc->sound_conf.play_sndcard=card;
3298         if (card &&  linphone_core_ready(lc))
3299                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3300         return 0;
3301 }
3302
3303 /**
3304  * Sets the sound device used for capture.
3305  *
3306  * @ingroup media_parameters
3307  * @param lc The LinphoneCore object
3308  * @param devid the device name as returned by linphone_core_get_sound_devices()
3309 **/
3310 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3311         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3312         lc->sound_conf.capt_sndcard=card;
3313         if (card &&  linphone_core_ready(lc))
3314                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3315         return 0;
3316 }
3317
3318 /**
3319  * Returns the name of the currently assigned sound device for ringing.
3320  *
3321  * @ingroup media_parameters
3322  * @param lc The LinphoneCore object
3323 **/
3324 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3325 {
3326         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3327         return NULL;
3328 }
3329
3330 /**
3331  * Returns the name of the currently assigned sound device for playback.
3332  *
3333  * @ingroup media_parameters
3334  * @param lc The LinphoneCore object
3335 **/
3336 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3337 {
3338         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3339 }
3340
3341 /**
3342  * Returns the name of the currently assigned sound device for capture.
3343  *
3344  * @ingroup media_parameters
3345  * @param lc The LinphoneCore object
3346 **/
3347 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3348 {
3349         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3350 }
3351
3352 /**
3353  * Returns an unmodifiable array of available sound devices.
3354  *
3355  * The array is NULL terminated.
3356  *
3357  * @ingroup media_parameters
3358  * @param lc The LinphoneCore object
3359 **/
3360 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3361         return lc->sound_conf.cards;
3362 }
3363
3364 /**
3365  * Returns an unmodifiable array of available video capture devices.
3366  *
3367  * @ingroup media_parameters
3368  * The array is NULL terminated.
3369 **/
3370 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3371         return lc->video_conf.cams;
3372 }
3373
3374 /**
3375  * Update detection of sound devices.
3376  *
3377  * Use this function when the application is notified of USB plug events, so that
3378  * list of available hardwares for sound playback and capture is updated.
3379  **/
3380 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3381         const char *ringer,*playback,*capture;
3382         ringer=linphone_core_get_ringer_device(lc);
3383         playback=linphone_core_get_playback_device(lc);
3384         capture=linphone_core_get_capture_device(lc);
3385         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3386         build_sound_devices_table(lc);
3387         linphone_core_set_ringer_device(lc,ringer);
3388         linphone_core_set_playback_device(lc,playback);
3389         linphone_core_set_capture_device(lc,capture);
3390 }
3391
3392 /**
3393  * Update detection of camera devices.
3394  *
3395  * Use this function when the application is notified of USB plug events, so that
3396  * list of available hardwares for video capture is updated.
3397  **/
3398 void linphone_core_reload_video_devices(LinphoneCore *lc){
3399         const char *devid;
3400         devid=linphone_core_get_video_device(lc);
3401         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3402         build_video_devices_table(lc);
3403         linphone_core_set_video_device(lc,devid);
3404 }
3405
3406 char linphone_core_get_sound_source(LinphoneCore *lc)
3407 {
3408         return lc->sound_conf.source;
3409 }
3410
3411 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3412 {
3413         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3414         lc->sound_conf.source=source;
3415         if (!sndcard) return;
3416         switch(source){
3417                 case 'm':
3418                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3419                         break;
3420                 case 'l':
3421                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3422                         break;
3423         }
3424
3425 }
3426
3427
3428 /**
3429  * Sets the path to a wav file used for ringing.
3430  *
3431  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3432  * @param lc The LinphoneCore object
3433  *
3434  * @ingroup media_parameters
3435 **/
3436 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3437         if (lc->sound_conf.local_ring!=0){
3438                 ms_free(lc->sound_conf.local_ring);
3439                 lc->sound_conf.local_ring=NULL;
3440         }
3441         if (path)
3442                 lc->sound_conf.local_ring=ms_strdup(path);
3443         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3444                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3445 }
3446
3447 /**
3448  * Returns the path to the wav file used for ringing.
3449  *
3450  * @param lc The LinphoneCore object
3451  * @ingroup media_parameters
3452 **/
3453 const char *linphone_core_get_ring(const LinphoneCore *lc){
3454         return lc->sound_conf.local_ring;
3455 }
3456
3457 /**
3458  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3459  *
3460  * @param path
3461  * @param lc The LinphoneCore object
3462  *
3463  * @ingroup media_parameters
3464 **/
3465 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3466         sal_set_root_ca(lc->sal, path);
3467 }
3468
3469 /**
3470  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3471 **/
3472 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3473         sal_verify_server_certificates(lc->sal,yesno);
3474 }
3475
3476 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3477         LinphoneCore *lc=(LinphoneCore*)ud;
3478         lc->preview_finished=1;
3479 }
3480
3481 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3482 {
3483         if (lc->ringstream!=0){
3484                 ms_warning("Cannot start ring now,there's already a ring being played");
3485                 return -1;
3486         }
3487         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3488         lc->preview_finished=0;
3489         if (lc->sound_conf.ring_sndcard!=NULL){
3490                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3491                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3492         }
3493         return 0;
3494 }
3495
3496 /**
3497  * Sets the path to a wav file used for ringing back.
3498  *
3499  * Ringback means the ring that is heard when it's ringing at the remote party.
3500  * The file must be a wav 16bit linear.
3501  *
3502  * @ingroup media_parameters
3503 **/
3504 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3505         if (lc->sound_conf.remote_ring!=0){
3506                 ms_free(lc->sound_conf.remote_ring);
3507         }
3508         lc->sound_conf.remote_ring=ms_strdup(path);
3509 }
3510
3511 /**
3512  * Returns the path to the wav file used for ringing back.
3513  *
3514  * @ingroup media_parameters
3515 **/
3516 const char * linphone_core_get_ringback(const LinphoneCore *lc){
3517         return lc->sound_conf.remote_ring;
3518 }
3519
3520 /**
3521  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
3522  *
3523  * @ingroup media_parameters
3524 **/
3525 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
3526         lc->sound_conf.ec=val;
3527         if ( linphone_core_ready(lc))
3528                 lp_config_set_int(lc->config,"sound","echocancellation",val);
3529 }
3530
3531
3532 /**
3533  * Returns TRUE if echo cancellation is enabled.
3534  *
3535  * @ingroup media_parameters
3536 **/
3537 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
3538         return lc->sound_conf.ec;
3539 }
3540
3541 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
3542         lc->sound_conf.ea=val;
3543 }
3544
3545 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
3546         return lc->sound_conf.ea;
3547 }
3548
3549 /**
3550  * Mutes or unmutes the local microphone.
3551  *
3552  * @ingroup media_parameters
3553 **/
3554 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
3555         LinphoneCall *call=linphone_core_get_current_call(lc);
3556         AudioStream *st=NULL;
3557         if (linphone_core_is_in_conference(lc)){
3558                 lc->conf_ctx.local_muted=val;
3559                 st=lc->conf_ctx.local_participant;
3560         }else if (call==NULL){
3561                 ms_warning("linphone_core_mute_mic(): No current call !");
3562                 return;
3563         }else{
3564                 st=call->audiostream;
3565                 call->audio_muted=val;
3566         }
3567         if (st!=NULL){
3568                 audio_stream_set_mic_gain(st,
3569                         (val==TRUE) ? 0 : lp_config_get_float(lc->config,"sound","mic_gain",1));
3570                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
3571                         audio_stream_mute_rtp(st,val);
3572                 }
3573
3574         }
3575 }
3576 /**
3577  * Returns whether microphone is muted.
3578 **/
3579 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
3580         LinphoneCall *call=linphone_core_get_current_call(lc);
3581         if (linphone_core_is_in_conference(lc)){
3582                 return lc->conf_ctx.local_muted;
3583         }else if (call==NULL){
3584                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3585                 return FALSE;
3586         }
3587         return call->audio_muted;
3588 }
3589
3590 // returns rtp transmission status for an active stream
3591 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
3592 // was set on then rtp transmission is also muted
3593 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
3594         LinphoneCall *call=linphone_core_get_current_call(lc);
3595         if (call==NULL){
3596                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3597                 return FALSE;
3598         }
3599         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
3600                 return call->audio_muted;
3601         }
3602         return FALSE;
3603 }
3604
3605 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
3606         lc->sound_conf.agc=val;
3607 }
3608
3609 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
3610         return lc->sound_conf.agc;
3611 }
3612
3613 /**
3614  * Send the specified dtmf.
3615  *
3616  * @ingroup media_parameters
3617  * This function only works during calls. The dtmf is automatically played to the user.
3618  * @param lc The LinphoneCore object
3619  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
3620  *
3621 **/
3622 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
3623 {
3624         LinphoneCall *call=linphone_core_get_current_call(lc);
3625         if (call==NULL){
3626                 ms_warning("linphone_core_send_dtmf(): no active call");
3627                 return;
3628         }
3629         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
3630         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
3631         {
3632                 /* In Band DTMF */
3633                 if (call->audiostream!=NULL){
3634                         audio_stream_send_dtmf(call->audiostream,dtmf);
3635                 }
3636                 else
3637                 {
3638                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
3639                 }
3640         }
3641         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
3642                 /* Out of Band DTMF (use INFO method) */
3643                 sal_call_send_dtmf(call->op,dtmf);
3644         }
3645 }
3646
3647 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
3648         if (lc->net_conf.stun_server!=NULL)
3649                 ms_free(lc->net_conf.stun_server);
3650         if (server)
3651                 lc->net_conf.stun_server=ms_strdup(server);
3652         else lc->net_conf.stun_server=NULL;
3653 }
3654
3655 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
3656         return lc->net_conf.stun_server;
3657 }
3658
3659 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
3660         return lc->net_conf.relay;
3661 }
3662
3663 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
3664         if (lc->net_conf.relay!=NULL){
3665                 ms_free(lc->net_conf.relay);
3666                 lc->net_conf.relay=NULL;
3667         }
3668         if (addr){
3669                 lc->net_conf.relay=ms_strdup(addr);
3670         }
3671         return 0;
3672 }
3673
3674 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
3675 {
3676         if (lc->net_conf.nat_address!=NULL){
3677                 ms_free(lc->net_conf.nat_address);
3678         }
3679         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
3680         else lc->net_conf.nat_address=NULL;
3681         if (lc->sip_conf.contact) update_primary_contact(lc);
3682 }
3683
3684 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
3685         return lc->net_conf.nat_address;
3686 }
3687
3688 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
3689 {
3690         struct sockaddr_storage ss;
3691         socklen_t ss_len;
3692         int error;
3693         char ipstring [INET6_ADDRSTRLEN];
3694
3695         if (lc->net_conf.nat_address==NULL) return NULL;
3696
3697         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
3698                 return lc->net_conf.nat_address;
3699         }
3700
3701         error = getnameinfo((struct sockaddr *)&ss, ss_len,
3702                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
3703         if (error) {
3704                 return lc->net_conf.nat_address;
3705         }
3706
3707         if (lc->net_conf.nat_address_ip!=NULL){
3708                 ms_free(lc->net_conf.nat_address_ip);
3709         }
3710         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
3711         return lc->net_conf.nat_address_ip;
3712 }
3713
3714 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
3715         lc->net_conf.firewall_policy=pol;
3716         if (lc->sip_conf.contact) update_primary_contact(lc);
3717 }
3718
3719 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
3720         return lc->net_conf.firewall_policy;
3721 }
3722
3723 /**
3724  * Get the list of call logs (past calls).
3725  *
3726  * @ingroup call_logs
3727 **/
3728 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
3729         return lc->call_logs;
3730 }
3731
3732 /**
3733  * Erase the call log.
3734  *
3735  * @ingroup call_logs
3736 **/
3737 void linphone_core_clear_call_logs(LinphoneCore *lc){
3738         lc->missed_calls=0;
3739         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
3740         lc->call_logs=ms_list_free(lc->call_logs);
3741         call_logs_write_to_config_file(lc);
3742 }
3743
3744 /**
3745  * Returns number of missed calls.
3746  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
3747 **/
3748 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
3749         return lc->missed_calls;
3750 }
3751
3752 /**
3753  * Resets the counter of missed calls.
3754 **/
3755 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
3756         lc->missed_calls=0;
3757 }
3758
3759 /**
3760  * Remove a specific call log from call history list.
3761  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
3762  * @param lc the linphone core object
3763  * @param a LinphoneCallLog object.
3764 **/
3765 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
3766         lc->call_logs = ms_list_remove(lc->call_logs, cl);
3767         call_logs_write_to_config_file(lc);
3768         linphone_call_log_destroy(cl);
3769 }
3770
3771 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
3772 #ifdef VIDEO_ENABLED
3773         if (val){
3774                 if (lc->previewstream==NULL){
3775                         lc->previewstream=video_preview_new();
3776                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
3777                         if (lc->video_conf.displaytype)
3778                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
3779                         if (lc->preview_window_id!=0)
3780                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
3781                         video_preview_start(lc->previewstream,lc->video_conf.device);
3782                 }
3783         }else{
3784                 if (lc->previewstream!=NULL){
3785                         video_preview_stop(lc->previewstream);
3786                         lc->previewstream=NULL;
3787                 }
3788         }
3789 #endif
3790 }
3791
3792 /**
3793  * Enables video globally.
3794  *
3795  * @ingroup media_parameters
3796  * This function does not have any effect during calls. It just indicates LinphoneCore to
3797  * initiate future calls with video or not. The two boolean parameters indicate in which
3798  * direction video is enabled. Setting both to false disables video entirely.
3799  *
3800  * @param lc The LinphoneCore object
3801  * @param vcap_enabled indicates whether video capture is enabled
3802  * @param display_enabled indicates whether video display should be shown
3803  *
3804 **/
3805 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
3806 #ifndef VIDEO_ENABLED
3807         if (vcap_enabled || display_enabled)
3808                 ms_warning("This version of linphone was built without video support.");
3809 #endif
3810         lc->video_conf.capture=vcap_enabled;
3811         lc->video_conf.display=display_enabled;
3812
3813         /* need to re-apply network bandwidth settings*/
3814         linphone_core_set_download_bandwidth(lc,
3815                 linphone_core_get_download_bandwidth(lc));
3816         linphone_core_set_upload_bandwidth(lc,
3817                 linphone_core_get_upload_bandwidth(lc));
3818 }
3819
3820 bool_t linphone_core_video_supported(LinphoneCore *lc){
3821 #ifdef VIDEO_ENABLED
3822         return TRUE;
3823 #else
3824         return FALSE;
3825 #endif
3826 }
3827
3828 /**
3829  * Returns TRUE if video is enabled, FALSE otherwise.
3830  * @ingroup media_parameters
3831 **/
3832 bool_t linphone_core_video_enabled(LinphoneCore *lc){
3833         return (lc->video_conf.display || lc->video_conf.capture);
3834 }
3835
3836 /**
3837  * Sets the default policy for video.
3838  * This policy defines whether:
3839  * - video shall be initiated by default for outgoing calls
3840  * - video shall be accepter by default for incoming calls
3841  * @ingroup media_parameters
3842 **/
3843 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
3844         lc->video_policy=*policy;
3845         if (linphone_core_ready(lc)){
3846                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
3847                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
3848         }
3849 }
3850
3851 /**
3852  * Get the default policy for video.
3853  * See linphone_core_set_video_policy() for more details.
3854  * @ingroup media_parameters
3855 **/
3856 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
3857         return &lc->video_policy;
3858 }
3859
3860 /**
3861  * Controls video preview enablement.
3862  *
3863  * @ingroup media_parameters
3864  * Video preview refers to the action of displaying the local webcam image
3865  * to the user while not in call.
3866 **/
3867 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
3868         lc->video_conf.show_local=val;
3869 }
3870
3871 /**
3872  * Returns TRUE if video previewing is enabled.
3873  * @ingroup media_parameters
3874 **/
3875 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
3876         return lc->video_conf.show_local;
3877 }
3878
3879 /**
3880  * Enables or disable self view during calls.
3881  *
3882  * @ingroup media_parameters
3883  * Self-view refers to having local webcam image inserted in corner
3884  * of the video window during calls.
3885  * This function works at any time, including during calls.
3886 **/
3887 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
3888 #ifdef VIDEO_ENABLED
3889         LinphoneCall *call=linphone_core_get_current_call (lc);
3890         lc->video_conf.selfview=val;
3891         if (call && call->videostream){
3892                 video_stream_enable_self_view(call->videostream,val);
3893         }
3894 #endif
3895 }
3896
3897 /**
3898  * Returns TRUE if self-view is enabled, FALSE otherwise.
3899  *
3900  * @ingroup media_parameters
3901  *
3902  * Refer to linphone_core_enable_self_view() for details.
3903 **/
3904 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
3905         return lc->video_conf.selfview;
3906 }
3907
3908 /**
3909  * Sets the active video device.
3910  *
3911  * @ingroup media_parameters
3912  * @param lc The LinphoneCore object
3913  * @param id the name of the video device as returned by linphone_core_get_video_devices()
3914 **/
3915 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
3916         MSWebCam *olddev=lc->video_conf.device;
3917         const char *vd;
3918         if (id!=NULL){
3919                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
3920                 if (lc->video_conf.device==NULL){
3921                         ms_warning("Could not found video device %s",id);
3922                 }
3923         }
3924         if (lc->video_conf.device==NULL)
3925                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
3926         if (olddev!=NULL && olddev!=lc->video_conf.device){
3927                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
3928         }
3929         if ( linphone_core_ready(lc) && lc->video_conf.device){
3930                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
3931                 if (vd && strstr(vd,"Static picture")!=NULL){
3932                         vd=NULL;
3933                 }
3934                 lp_config_set_string(lc->config,"video","device",vd);
3935         }
3936         return 0;
3937 }
3938
3939 /**
3940  * Returns the name of the currently active video device.
3941  *
3942  * @param lc The LinphoneCore object
3943  * @ingroup media_parameters
3944 **/
3945 const char *linphone_core_get_video_device(const LinphoneCore *lc){
3946         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
3947         return NULL;
3948 }
3949
3950 #ifdef VIDEO_ENABLED
3951 static VideoStream * get_active_video_stream(LinphoneCore *lc){
3952         VideoStream *vs = NULL;
3953         LinphoneCall *call=linphone_core_get_current_call (lc);
3954         /* Select the video stream from the call in the first place */
3955         if (call && call->videostream) {
3956                 vs = call->videostream;
3957         }
3958         /* If not in call, select the video stream from the preview */
3959         if (vs == NULL && lc->previewstream) {
3960                 vs = lc->previewstream;
3961         }
3962         return vs;
3963 }
3964 #endif
3965
3966 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
3967 #ifdef VIDEO_ENABLED
3968         VideoStream *vs=get_active_video_stream(lc);
3969         /* If we have a video stream (either preview, either from call), we
3970                  have a source and it is using the static picture filter, then
3971                  force the filter to use that picture. */
3972         if (vs && vs->source) {
3973                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
3974                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
3975                                                                                                                 (void *)path);
3976                 }
3977         }
3978         /* Tell the static image filter to use that image from now on so
3979                  that the image will be used next time it has to be read */
3980         ms_static_image_set_default_image(path);
3981 #else
3982         ms_warning("Video support not compiled.");
3983 #endif
3984         return 0;
3985 }
3986
3987 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
3988 #ifdef VIDEO_ENABLED
3989         VideoStream *vs = NULL;
3990
3991         vs=get_active_video_stream(lc);
3992
3993         /* If we have a video stream (either preview, either from call), we
3994                  have a source and it is using the static picture filter, then
3995                  force the filter to use that picture. */
3996         if (vs && vs->source) {
3997                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
3998                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
3999                 }
4000         }
4001 #else
4002         ms_warning("Video support not compiled.");
4003 #endif
4004         return 0;
4005 }
4006
4007 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4008 #ifdef VIDEO_ENABLED
4009         VideoStream *vs = NULL;
4010         vs=get_active_video_stream(lc);
4011         /* If we have a video stream (either preview, either from call), we
4012                  have a source and it is using the static picture filter, then
4013                  force the filter to use that picture. */
4014         if (vs && vs->source) {
4015                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4016
4017                         float fps;
4018
4019                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4020                         return fps;
4021                 }
4022         }
4023 #else
4024         ms_warning("Video support not compiled.");
4025 #endif
4026         return 0;
4027 }
4028
4029 /**
4030  * Returns the native window handle of the video window, casted as an unsigned long.
4031  *
4032  * @ingroup media_parameters
4033 **/
4034 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4035 #ifdef VIDEO_ENABLED
4036         LinphoneCall *call=linphone_core_get_current_call (lc);
4037         if (call && call->videostream)
4038                 return video_stream_get_native_window_id(call->videostream);
4039         if (lc->previewstream)
4040                 return video_stream_get_native_window_id(lc->previewstream);
4041 #endif
4042         return lc->video_window_id;
4043 }
4044
4045 /**@ingroup media_parameters
4046  * Set the native video window id where the video is to be displayed.
4047  * If not set the core will create its own window.
4048 **/
4049 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4050 #ifdef VIDEO_ENABLED
4051         LinphoneCall *call=linphone_core_get_current_call(lc);
4052         lc->video_window_id=id;
4053         if (call!=NULL && call->videostream){
4054                 video_stream_set_native_window_id(call->videostream,id);
4055         }
4056 #endif
4057 }
4058
4059 /**
4060  * Returns the native window handle of the video preview window, casted as an unsigned long.
4061  *
4062  * @ingroup media_parameters
4063 **/
4064 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4065 #ifdef VIDEO_ENABLED
4066         LinphoneCall *call=linphone_core_get_current_call (lc);
4067         if (call && call->videostream)
4068                 return video_stream_get_native_preview_window_id(call->videostream);
4069         if (lc->previewstream)
4070                 return video_preview_get_native_window_id(lc->previewstream);
4071 #endif
4072         return lc->preview_window_id;
4073 }
4074
4075 /**
4076  * @ingroup media_parameters
4077  * Set the native window id where the preview video (local camera) is to be displayed.
4078  * This has to be used in conjonction with linphone_core_use_preview_window().
4079  * If not set the core will create its own window.
4080 **/
4081 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4082         lc->preview_window_id=id;
4083 #ifdef VIDEO_ENABLED
4084         LinphoneCall *call=linphone_core_get_current_call(lc);
4085         if (call!=NULL && call->videostream){
4086                 video_stream_set_native_preview_window_id(call->videostream,id);
4087         }
4088 #endif
4089 }
4090
4091 /**
4092  * Can be used to disable video showing to free XV port
4093 **/
4094 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4095 #ifdef VIDEO_ENABLED
4096         ms_error("linphone_core_show_video %d", show);
4097         LinphoneCall *call=linphone_core_get_current_call(lc);
4098         if (call!=NULL && call->videostream){
4099                 video_stream_show_video(call->videostream,show);
4100         }
4101 #endif
4102 }
4103
4104 /**
4105  * Tells the core to use a separate window for local camera preview video, instead of
4106  * inserting local view within the remote video window.
4107  *
4108 **/
4109 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4110         lc->use_preview_window=yesno;
4111 }
4112 /**
4113  * @ingroup media_parameters
4114  *returns current device orientation
4115  */
4116 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4117         return lc->device_rotation;
4118 }
4119 /**
4120  * @ingroup media_parameters
4121  * Tells the core the device current orientation. This can be used by capture filters
4122  * on mobile devices to select between portrait/landscape mode and to produce properly
4123  * oriented images. The exact meaning of the value in rotation if left to each device
4124  * specific implementations.
4125  *@param lc  object.
4126  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4127  *
4128 **/
4129 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4130 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4131         lc->device_rotation = rotation;
4132 #ifdef VIDEO_ENABLED
4133         LinphoneCall *call=linphone_core_get_current_call(lc);
4134         if (call!=NULL && call->videostream){
4135                 video_stream_set_device_rotation(call->videostream,rotation);
4136         }
4137 #endif
4138 }
4139
4140 static MSVideoSizeDef supported_resolutions[]={
4141 #ifdef ENABLE_HD
4142         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4143         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4144 #endif
4145         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4146         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4147         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4148         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4149         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4150         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4151         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4152         {       {0,0}                   ,       NULL    }
4153 };
4154
4155 /**
4156  * Returns the zero terminated table of supported video resolutions.
4157  *
4158  * @ingroup media_parameters
4159 **/
4160 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4161         return supported_resolutions;
4162 }
4163
4164 static MSVideoSize video_size_get_by_name(const char *name){
4165         MSVideoSizeDef *pdef=supported_resolutions;
4166         MSVideoSize null_vsize={0,0};
4167         for(;pdef->name!=NULL;pdef++){
4168                 if (strcasecmp(name,pdef->name)==0){
4169                         return pdef->vsize;
4170                 }
4171         }
4172         ms_warning("Video resolution %s is not supported in linphone.",name);
4173         return null_vsize;
4174 }
4175
4176 static const char *video_size_get_name(MSVideoSize vsize){
4177         MSVideoSizeDef *pdef=supported_resolutions;
4178         for(;pdef->name!=NULL;pdef++){
4179                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4180                         return pdef->name;
4181                 }
4182         }
4183         return NULL;
4184 }
4185
4186 static bool_t video_size_supported(MSVideoSize vsize){
4187         if (video_size_get_name(vsize)) return TRUE;
4188         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4189         return FALSE;
4190 }
4191
4192 /**
4193  * Sets the preferred video size.
4194  *
4195  * @ingroup media_parameters
4196  * This applies only to the stream that is captured and sent to the remote party,
4197  * since we accept all standard video size on the receive path.
4198 **/
4199 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4200         if (video_size_supported(vsize)){
4201                 MSVideoSize oldvsize=lc->video_conf.vsize;
4202                 lc->video_conf.vsize=vsize;
4203                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4204                         toggle_video_preview(lc,FALSE);
4205                         toggle_video_preview(lc,TRUE);
4206                 }
4207                 if ( linphone_core_ready(lc))
4208                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4209         }
4210 }
4211
4212 /**
4213  * Sets the preferred video size by its name.
4214  *
4215  * @ingroup media_parameters
4216  * This is identical to linphone_core_set_preferred_video_size() except
4217  * that it takes the name of the video resolution as input.
4218  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4219 **/
4220 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4221         MSVideoSize vsize=video_size_get_by_name(name);
4222         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4223         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4224         else linphone_core_set_preferred_video_size(lc,default_vsize);
4225 }
4226
4227 /**
4228  * Returns the current preferred video size for sending.
4229  *
4230  * @ingroup media_parameters
4231 **/
4232 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4233         return lc->video_conf.vsize;
4234 }
4235
4236 /**
4237  * Ask the core to stream audio from and to files, instead of using the soundcard.
4238 **/
4239 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4240         lc->use_files=yesno;
4241 }
4242
4243 /**
4244  * Sets a wav file to be played when putting somebody on hold,
4245  * or when files are used instead of soundcards (see linphone_core_use_files()).
4246  *
4247  * The file must be a 16 bit linear wav file.
4248 **/
4249 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4250         LinphoneCall *call=linphone_core_get_current_call(lc);
4251         if (lc->play_file!=NULL){
4252                 ms_free(lc->play_file);
4253                 lc->play_file=NULL;
4254         }
4255         if (file!=NULL) {
4256                 lc->play_file=ms_strdup(file);
4257                 if (call && call->audiostream && call->audiostream->ticker)
4258                         audio_stream_play(call->audiostream,file);
4259         }
4260 }
4261
4262
4263 /**
4264  * Sets a wav file where incoming stream is to be recorded,
4265  * when files are used instead of soundcards (see linphone_core_use_files()).
4266  *
4267  * The file must be a 16 bit linear wav file.
4268 **/
4269 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4270         LinphoneCall *call=linphone_core_get_current_call(lc);
4271         if (lc->rec_file!=NULL){
4272                 ms_free(lc->rec_file);
4273                 lc->rec_file=NULL;
4274         }
4275         if (file!=NULL) {
4276                 lc->rec_file=ms_strdup(file);
4277                 if (call && call->audiostream)
4278                         audio_stream_record(call->audiostream,file);
4279         }
4280 }
4281
4282
4283 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4284         LinphoneCall *call=linphone_core_get_current_call (lc);
4285         AudioStream *stream=NULL;
4286         if (call){
4287                 stream=call->audiostream;
4288         }else if (linphone_core_is_in_conference(lc)){
4289                 stream=lc->conf_ctx.local_participant;
4290         }
4291         if (stream){
4292                 return stream->dtmfgen;
4293         }
4294         if (lc->ringstream==NULL){
4295                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4296                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4297                 if (ringcard == NULL)
4298                         return NULL;
4299
4300                 lc->ringstream=ring_start(NULL,0,ringcard);
4301                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4302                 lc->dmfs_playing_start_time=time(NULL);
4303         }else{
4304                 if (lc->dmfs_playing_start_time!=0)
4305                         lc->dmfs_playing_start_time=time(NULL);
4306         }
4307         return lc->ringstream->gendtmf;
4308 }
4309
4310 /**
4311  * @ingroup media_parameters
4312  * Plays a dtmf sound to the local user.
4313  * @param lc #LinphoneCore
4314  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4315  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4316 **/
4317 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4318         MSFilter *f=get_dtmf_gen(lc);
4319         if (f==NULL){
4320                 ms_error("No dtmf generator at this time !");
4321                 return;
4322         }
4323
4324         if (duration_ms>0)
4325                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4326         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4327 }
4328
4329 /**
4330  * @ingroup media_parameters
4331  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4332  * @param lc #LinphoneCore
4333 **/
4334 void linphone_core_play_tone(LinphoneCore *lc){
4335         MSFilter *f=get_dtmf_gen(lc);
4336         MSDtmfGenCustomTone def;
4337         if (f==NULL){
4338                 ms_error("No dtmf generator at this time !");
4339                 return;
4340         }
4341         def.duration=300;
4342         def.frequency=500;
4343         def.amplitude=1;
4344         def.interval=2000;
4345         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4346 }
4347
4348 /**
4349  * @ingroup media_parameters
4350  *
4351  * Stops playing a dtmf started by linphone_core_play_dtmf().
4352 **/
4353 void linphone_core_stop_dtmf(LinphoneCore *lc){
4354         MSFilter *f=get_dtmf_gen(lc);
4355         if (f!=NULL)
4356                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4357 }
4358
4359
4360
4361 /**
4362  * Retrieves the user pointer that was given to linphone_core_new()
4363  *
4364  * @ingroup initializing
4365 **/
4366 void *linphone_core_get_user_data(LinphoneCore *lc){
4367         return lc->data;
4368 }
4369
4370 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4371         lc->data=userdata;
4372 }
4373
4374 int linphone_core_get_mtu(const LinphoneCore *lc){
4375         return lc->net_conf.mtu;
4376 }
4377
4378 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4379         lc->net_conf.mtu=mtu;
4380         if (mtu>0){
4381                 if (mtu<500){
4382                         ms_error("MTU too small !");
4383                         mtu=500;
4384                 }
4385                 ms_set_mtu(mtu);
4386                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4387         }else ms_set_mtu(0);//use mediastreamer2 default value
4388 }
4389
4390 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4391         lc->wait_cb=cb;
4392         lc->wait_ctx=user_context;
4393 }
4394
4395 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4396         if (lc->wait_cb){
4397                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4398         }
4399 }
4400
4401 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4402         if (lc->wait_cb){
4403                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4404         }else{
4405 #ifdef WIN32
4406                 Sleep(50000);
4407 #else
4408                 usleep(50000);
4409 #endif
4410         }
4411 }
4412
4413 void linphone_core_stop_waiting(LinphoneCore *lc){
4414         if (lc->wait_cb){
4415                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4416         }
4417 }
4418
4419 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4420         lc->rtptf=factories;
4421 }
4422
4423 /**
4424  * Retrieve RTP statistics regarding current call.
4425  * @param local RTP statistics computed locally.
4426  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4427  *
4428  * @note Remote RTP statistics is not implemented yet.
4429  *
4430  * @returns 0 or -1 if no call is running.
4431 **/
4432
4433 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
4434         LinphoneCall *call=linphone_core_get_current_call (lc);
4435         if (call!=NULL){
4436                 if (call->audiostream!=NULL){
4437                         memset(remote,0,sizeof(*remote));
4438                         audio_stream_get_local_rtp_stats (call->audiostream,local);
4439                         return 0;
4440                 }
4441         }
4442         return -1;
4443 }
4444
4445 void net_config_uninit(LinphoneCore *lc)
4446 {
4447         net_config_t *config=&lc->net_conf;
4448
4449         if (config->stun_server!=NULL){
4450                 lp_config_set_string(lc->config,"net","stun_server",config->stun_server);
4451                 ms_free(lc->net_conf.stun_server);
4452         }
4453         if (config->nat_address!=NULL){
4454                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
4455                 ms_free(lc->net_conf.nat_address);
4456         }
4457         if (lc->net_conf.nat_address_ip !=NULL){
4458                 ms_free(lc->net_conf.nat_address_ip);
4459         }
4460         lp_config_set_int(lc->config,"net","firewall_policy",config->firewall_policy);
4461         lp_config_set_int(lc->config,"net","mtu",config->mtu);
4462 }
4463
4464
4465 void sip_config_uninit(LinphoneCore *lc)
4466 {
4467         MSList *elem;
4468         int i;
4469         sip_config_t *config=&lc->sip_conf;
4470
4471         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
4472         lp_config_set_string(lc->config,"sip","contact",config->contact);
4473         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
4474         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
4475         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
4476         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
4477         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
4478
4479
4480
4481
4482         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
4483                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
4484                 linphone_proxy_config_edit(cfg);        /* to unregister */
4485         }
4486
4487         for (i=0;i<20;i++){
4488                 sal_iterate(lc->sal);
4489 #ifndef WIN32
4490                 usleep(100000);
4491 #else
4492                 Sleep(100);
4493 #endif
4494         }
4495
4496         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
4497         ms_list_free(config->proxies);
4498         config->proxies=NULL;
4499
4500         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
4501
4502         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
4503         ms_list_free(lc->auth_info);
4504         lc->auth_info=NULL;
4505
4506         sal_uninit(lc->sal);
4507         lc->sal=NULL;
4508
4509         if (lc->sip_conf.guessed_contact)
4510                 ms_free(lc->sip_conf.guessed_contact);
4511         if (config->contact)
4512                 ms_free(config->contact);
4513
4514 }
4515
4516 void rtp_config_uninit(LinphoneCore *lc)
4517 {
4518         rtp_config_t *config=&lc->rtp_conf;
4519         lp_config_set_int(lc->config,"rtp","audio_rtp_port",config->audio_rtp_port);
4520         lp_config_set_int(lc->config,"rtp","video_rtp_port",config->video_rtp_port);
4521         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
4522         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
4523         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
4524         lp_config_set_int(lc->config,"rtp","audio_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
4525         lp_config_set_int(lc->config,"rtp","video_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
4526 }
4527
4528 void sound_config_uninit(LinphoneCore *lc)
4529 {
4530         sound_config_t *config=&lc->sound_conf;
4531         ms_free(config->cards);
4532
4533         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
4534
4535         if (config->local_ring) ms_free(config->local_ring);
4536         if (config->remote_ring) ms_free(config->remote_ring);
4537         ms_snd_card_manager_destroy();
4538 }
4539
4540 void video_config_uninit(LinphoneCore *lc)
4541 {
4542         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
4543         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4544         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4545         lp_config_set_int(lc->config,"video","show_local",linphone_core_video_preview_enabled(lc));
4546         lp_config_set_int(lc->config,"video","self_view",linphone_core_self_view_enabled(lc));
4547         if (lc->video_conf.cams)
4548                 ms_free(lc->video_conf.cams);
4549 }
4550
4551 void _linphone_core_codec_config_write(LinphoneCore *lc){
4552         if (linphone_core_ready(lc)){
4553                 PayloadType *pt;
4554                 codecs_config_t *config=&lc->codecs_conf;
4555                 MSList *node;
4556                 char key[50];
4557                 int index;
4558                 index=0;
4559                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
4560                         pt=(PayloadType*)(node->data);
4561                         sprintf(key,"audio_codec_%i",index);
4562                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4563                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4564                         lp_config_set_int(lc->config,key,"channels",pt->channels);
4565                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4566                         index++;
4567                 }
4568                 sprintf(key,"audio_codec_%i",index);
4569                 lp_config_clean_section (lc->config,key);
4570
4571                 index=0;
4572                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
4573                         pt=(PayloadType*)(node->data);
4574                         sprintf(key,"video_codec_%i",index);
4575                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4576                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4577                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4578                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
4579                         index++;
4580                 }
4581                 sprintf(key,"video_codec_%i",index);
4582                 lp_config_clean_section (lc->config,key);
4583         }
4584 }
4585
4586 static void codecs_config_uninit(LinphoneCore *lc)
4587 {
4588         _linphone_core_codec_config_write(lc);
4589         ms_list_free(lc->codecs_conf.audio_codecs);
4590         ms_list_free(lc->codecs_conf.video_codecs);
4591 }
4592
4593 void ui_config_uninit(LinphoneCore* lc)
4594 {
4595         if (lc->friends){
4596                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
4597                 ms_list_free(lc->friends);
4598                 lc->friends=NULL;
4599         }
4600 }
4601
4602 /**
4603  * Returns the LpConfig object used to manage the storage (config) file.
4604  *
4605  * @ingroup misc
4606  * The application can use the LpConfig object to insert its own private
4607  * sections and pairs of key=value in the configuration file.
4608  *
4609 **/
4610 LpConfig *linphone_core_get_config(LinphoneCore *lc){
4611         return lc->config;
4612 }
4613
4614 static void linphone_core_uninit(LinphoneCore *lc)
4615 {
4616         linphone_core_free_hooks(lc);
4617         while(lc->calls)
4618         {
4619                 LinphoneCall *the_call = lc->calls->data;
4620                 linphone_core_terminate_call(lc,the_call);
4621                 linphone_core_iterate(lc);
4622 #ifdef WIN32
4623                 Sleep(50000);
4624 #else
4625                 usleep(50000);
4626 #endif
4627         }
4628         if (lc->friends)
4629                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
4630         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
4631 #ifdef VIDEO_ENABLED
4632         if (lc->previewstream!=NULL){
4633                 video_preview_stop(lc->previewstream);
4634                 lc->previewstream=NULL;
4635         }
4636 #endif
4637         ms_event_queue_destroy(lc->msevq);
4638         lc->msevq=NULL;
4639         /* save all config */
4640         net_config_uninit(lc);
4641         rtp_config_uninit(lc);
4642         if (lc->ringstream) ring_stop(lc->ringstream);
4643         sound_config_uninit(lc);
4644         video_config_uninit(lc);
4645         codecs_config_uninit(lc);
4646         ui_config_uninit(lc);
4647         sip_config_uninit(lc);
4648         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
4649         lp_config_destroy(lc->config);
4650         lc->config = NULL; /* Mark the config as NULL to block further calls */
4651         sip_setup_unregister_all();
4652
4653         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4654         lc->call_logs=ms_list_free(lc->call_logs);
4655
4656         linphone_core_free_payload_types(lc);
4657         ortp_exit();
4658         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
4659 #ifdef TUNNEL_ENABLED
4660         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
4661 #endif
4662 }
4663
4664 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
4665         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
4666         // second get the list of available proxies
4667         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4668         for(;elem!=NULL;elem=elem->next){
4669                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4670                 if (linphone_proxy_config_register_enabled(cfg) ) {
4671                         if (!isReachable) {
4672                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
4673                         }else{
4674                                 cfg->commit=TRUE;
4675                         }
4676                 }
4677         }
4678         lc->netup_time=curtime;
4679         lc->network_reachable=isReachable;
4680         if(!isReachable) {
4681                 sal_reset_transports(lc->sal);
4682         }
4683 }
4684
4685 void linphone_core_refresh_registers(LinphoneCore* lc) {
4686         const MSList *elem;
4687         if (!lc->network_reachable) {
4688                 ms_warning("Refresh register operation not available (network unreachable)");
4689                 return;
4690         }
4691         elem=linphone_core_get_proxy_config_list(lc);
4692         for(;elem!=NULL;elem=elem->next){
4693                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4694                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
4695                         linphone_proxy_config_refresh_register(cfg);
4696                 }
4697         }
4698 }
4699
4700 void __linphone_core_invalidate_registers(LinphoneCore* lc){
4701         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4702         for(;elem!=NULL;elem=elem->next){
4703                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4704                 if (linphone_proxy_config_register_enabled(cfg)) {
4705                         linphone_proxy_config_edit(cfg);
4706                         linphone_proxy_config_done(cfg);
4707                 }
4708         }
4709 }
4710
4711 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
4712         //first disable automatic mode
4713         if (lc->auto_net_state_mon) {
4714                 ms_message("Disabling automatic network state monitoring");
4715                 lc->auto_net_state_mon=FALSE;
4716         }
4717         set_network_reachable(lc,isReachable, ms_time(NULL));
4718 }
4719
4720 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
4721         return lc->network_reachable;
4722 }
4723 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
4724         return sal_get_socket(lc->sal);
4725 }
4726 /**
4727  * Destroys a LinphoneCore
4728  *
4729  * @ingroup initializing
4730 **/
4731 void linphone_core_destroy(LinphoneCore *lc){
4732         linphone_core_uninit(lc);
4733         ms_free(lc);
4734 }
4735 /**
4736  * Get the number of Call
4737  *
4738  * @ingroup call_control
4739 **/
4740 int linphone_core_get_calls_nb(const LinphoneCore *lc){
4741         return  ms_list_size(lc->calls);;
4742 }
4743
4744 /**
4745  * Check if we do not have exceed the number of simultaneous call
4746  *
4747  * @ingroup call_control
4748 **/
4749 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
4750 {
4751         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
4752                 return TRUE;
4753         ms_message("Maximum amount of simultaneous calls reached !");
4754         return FALSE;
4755 }
4756
4757
4758 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
4759 {
4760         if(linphone_core_can_we_add_call(lc))
4761         {
4762                 lc->calls = ms_list_append(lc->calls,call);
4763                 return 0;
4764         }
4765         return -1;
4766 }
4767
4768 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
4769 {
4770         MSList *it;
4771         MSList *the_calls = lc->calls;
4772
4773         it=ms_list_find(the_calls,call);
4774         if (it)
4775         {
4776                 the_calls = ms_list_remove_link(the_calls,it);
4777         }
4778         else
4779         {
4780                 ms_warning("could not find the call into the list\n");
4781                 return -1;
4782         }
4783         lc->calls = the_calls;
4784         return 0;
4785 }
4786
4787 /**
4788  * Specifiies a ring back tone to be played to far end during incoming calls.
4789 **/
4790 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
4791         if (lc->sound_conf.ringback_tone){
4792                 ms_free(lc->sound_conf.ringback_tone);
4793                 lc->sound_conf.ringback_tone=NULL;
4794         }
4795         if (file)
4796                 lc->sound_conf.ringback_tone=ms_strdup(file);
4797 }
4798
4799 /**
4800  * Returns the ring back tone played to far end during incoming calls.
4801 **/
4802 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
4803         return lc->sound_conf.ringback_tone;
4804 }
4805
4806 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
4807         const MSList *elem;
4808         for(elem=from;elem!=NULL;elem=elem->next){
4809                 PayloadType *pt=(PayloadType*)elem->data;
4810                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
4811                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
4812                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
4813                         return pt;
4814                 }
4815         }
4816         return NULL;
4817 }
4818
4819
4820 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
4821         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
4822         if (result)  {
4823                 return result;
4824         } else {
4825                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
4826                 if (result) {
4827                         return result;
4828                 }
4829         }
4830         /*not found*/
4831         return NULL;
4832 }
4833
4834 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
4835         switch(gs){
4836                 case LinphoneGlobalOff:
4837                         return "LinphoneGlobalOff";
4838                 break;
4839                 case LinphoneGlobalOn:
4840                         return "LinphoneGlobalOn";
4841                 break;
4842                 case LinphoneGlobalStartup:
4843                         return "LinphoneGlobalStartup";
4844                 break;
4845                 case LinphoneGlobalShutdown:
4846                         return "LinphoneGlobalShutdown";
4847                 break;
4848         }
4849         return NULL;
4850 }
4851
4852 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
4853         return lc->state;
4854 }
4855
4856 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
4857         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
4858         linphone_core_init_default_params(lc, p);
4859         return p;
4860 }
4861
4862 const char *linphone_reason_to_string(LinphoneReason err){
4863         switch(err){
4864                 case LinphoneReasonNone:
4865                         return "No error";
4866                 case LinphoneReasonNoResponse:
4867                         return "No response";
4868                 case LinphoneReasonBadCredentials:
4869                         return "Bad credentials";
4870                 case LinphoneReasonDeclined:
4871                         return "Call declined";
4872                 case LinphoneReasonNotFound:
4873                         return "User not found";
4874                 case LinphoneReasonNotAnswered:
4875                         return "Not answered";
4876         }
4877         return "unknown error";
4878 }
4879
4880 const char *linphone_error_to_string(LinphoneReason err){
4881         return linphone_reason_to_string(err);
4882 }
4883 /**
4884  * Enables signaling keep alive
4885  */
4886 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
4887         if (enable > 0) {
4888                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
4889         } else {
4890                 sal_set_keepalive_period(lc->sal,0);
4891         }
4892 }
4893 /**
4894  * Is signaling keep alive enabled
4895  */
4896 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
4897         return sal_get_keepalive_period(lc->sal) > 0;
4898 }
4899
4900 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
4901         get_dtmf_gen(lc); /*make sure ring stream is started*/
4902         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
4903 }
4904
4905 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
4906         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
4907                 ring_stop(lc->ringstream);
4908                 lc->ringstream=NULL;
4909         }
4910 }
4911
4912 int linphone_core_get_max_calls(LinphoneCore *lc) {
4913         return lc->max_calls;
4914 }
4915 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
4916         lc->max_calls=max;
4917 }
4918
4919 typedef struct Hook{
4920         LinphoneCoreIterateHook fun;
4921         void *data;
4922 }Hook;
4923
4924 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
4925         Hook *h=ms_new(Hook,1);
4926         h->fun=hook;
4927         h->data=hook_data;
4928         return h;
4929 }
4930
4931 static void hook_invoke(Hook *h){
4932         h->fun(h->data);
4933 }
4934
4935 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
4936         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
4937 }
4938
4939 static void linphone_core_run_hooks(LinphoneCore *lc){
4940         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
4941 }
4942
4943 static void linphone_core_free_hooks(LinphoneCore *lc){
4944         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
4945         ms_list_free(lc->hooks);
4946         lc->hooks=NULL;
4947 }
4948
4949 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
4950         MSList *elem;
4951         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
4952                 Hook *h=(Hook*)elem->data;
4953                 if (h->fun==hook && h->data==hook_data){
4954                         ms_list_remove_link(lc->hooks,elem);
4955                         ms_free(h);
4956                         return;
4957                 }
4958         }
4959         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
4960 }
4961
4962 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
4963         if (lc->zrtp_secrets_cache != NULL) {
4964                 ms_free(lc->zrtp_secrets_cache);
4965         }
4966         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
4967 }
4968
4969 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
4970         if (uri == NULL) return NULL;
4971         MSList *calls=lc->calls;
4972         while(calls) {
4973                 const LinphoneCall *c=(LinphoneCall*)calls->data;
4974                 calls=calls->next;
4975                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
4976                 char *current_uri=linphone_address_as_string_uri_only(address);
4977                 if (strcmp(uri,current_uri)==0) {
4978                         ms_free(current_uri);
4979                         return c;
4980                 } else {
4981                         ms_free(current_uri);
4982                 }
4983         }
4984         return NULL;
4985 }
4986
4987
4988 /**
4989  * Check if a call will need the sound resources.
4990  *
4991  * @ingroup call_control
4992  * @param lc The LinphoneCore
4993 **/
4994 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
4995         MSList *calls=lc->calls;
4996         while(calls) {
4997                 LinphoneCall *c=(LinphoneCall*)calls->data;
4998                 calls=calls->next;
4999                 switch (c->state) {
5000                         case LinphoneCallOutgoingInit:
5001                         case LinphoneCallOutgoingProgress:
5002                         case LinphoneCallOutgoingRinging:
5003                         case LinphoneCallOutgoingEarlyMedia:
5004                         case LinphoneCallConnected:
5005                         case LinphoneCallRefered:
5006                         case LinphoneCallIncomingEarlyMedia:
5007                         case LinphoneCallUpdated:
5008                                 return TRUE;
5009                         default:
5010                                 break;
5011                 }
5012         }
5013         return FALSE;
5014 }
5015
5016 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5017         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5018 }
5019
5020 /**
5021  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5022 **/
5023 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5024         switch(menc){
5025                 case LinphoneMediaEncryptionSRTP:
5026                         return ortp_srtp_supported();
5027                 case LinphoneMediaEncryptionZRTP:
5028                         return ortp_zrtp_available();
5029                 case LinphoneMediaEncryptionNone:
5030                         return TRUE;
5031         }
5032         return FALSE;
5033 }
5034
5035 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5036         const char *type="none";
5037         int ret=0;
5038         if (menc == LinphoneMediaEncryptionSRTP){
5039                 if (!ortp_srtp_supported()){
5040                         ms_warning("SRTP not supported by library.");
5041                         type="none";
5042                         ret=-1;
5043                 }else type="srtp";
5044         }else if (menc == LinphoneMediaEncryptionZRTP){
5045                 if (!ortp_zrtp_available()){
5046                         ms_warning("ZRTP not supported by library.");
5047                         type="none";
5048                         ret=-1;
5049                 }else type="zrtp";
5050         }
5051         lp_config_set_string(lc->config,"sip","media_encryption",type);
5052         return ret;
5053 }
5054
5055 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5056         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5057
5058         if (menc == NULL)
5059                 return LinphoneMediaEncryptionNone;
5060         else if (strcmp(menc, "srtp")==0)
5061                 return LinphoneMediaEncryptionSRTP;
5062         else if (strcmp(menc, "zrtp")==0)
5063                 return LinphoneMediaEncryptionZRTP;
5064         else
5065                 return LinphoneMediaEncryptionNone;
5066 }
5067
5068 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5069         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5070 }
5071
5072 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5073         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5074 }
5075
5076 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5077         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5078         params->media_encryption=linphone_core_get_media_encryption(lc);
5079         params->in_conference=FALSE;
5080 }
5081
5082 void linphone_call_zoom_video(LinphoneCall* call, float zoom_factor, float* cx, float* cy) {
5083         VideoStream* vstream = call->videostream;
5084         if (vstream) {
5085                 float zoom[3];
5086
5087                 if (zoom_factor < 1)
5088                         zoom_factor = 1;
5089                 float halfsize = 0.5 * 1.0 / zoom_factor;
5090
5091                 if ((*cx - halfsize) < 0)
5092                         *cx = 0 + halfsize;
5093                 if ((*cx + halfsize) > 1)
5094                         *cx = 1 - halfsize;
5095                 if ((*cy - halfsize) < 0)
5096                         *cy = 0 + halfsize;
5097                 if ((*cy + halfsize) > 1)
5098                         *cy = 1 - halfsize;
5099
5100                 zoom[0] = zoom_factor;
5101                 zoom[1] = *cx;
5102                 zoom[2] = *cy;
5103                 ms_filter_call_method(vstream->output, MS_VIDEO_DISPLAY_ZOOM, &zoom);
5104         }else ms_warning("Could not apply zoom: video output wasn't activated.");
5105 }
5106
5107 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5108         if (lc->device_id) ms_free(lc->device_id);
5109         lc->device_id=ms_strdup(device_id);
5110 }
5111 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5112         return lc->device_id;
5113 }