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

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