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