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

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