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