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

   1 /*
   2 linphone
   3 Copyright (C) 2000  Simon MORLAT (simon.morlat@linphone.org)
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19
  20 #define _GNU_SOURCE
  21
  22 #include "linphonecore.h"
  23 #include "sipsetup.h"
  24 #include "lpconfig.h"
  25 #include "private.h"
  26
  27 #include <math.h>
  28 #include <ortp/telephonyevents.h>
  29 #include <ortp/zrtp.h>
  30 #include "mediastreamer2/mediastream.h"
  31 #include "mediastreamer2/mseventqueue.h"
  32 #include "mediastreamer2/msvolume.h"
  33 #include "mediastreamer2/msequalizer.h"
  34 #include "mediastreamer2/dtmfgen.h"
  35
  36 #ifdef INET6
  37 #ifndef WIN32
  38 #include <netdb.h>
  39 #endif
  40 #endif
  41
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #include "liblinphone_gitversion.h"
  45 #else
  46 #ifndef LIBLINPHONE_GIT_VERSION
  47 #define LIBLINPHONE_GIT_VERSION "unknown"
  48 #endif
  49 #endif
  50
  51
  52 /*#define UNSTANDART_GSM_11K 1*/
  53
  54 #define ROOT_CA_FILE PACKAGE_DATA_DIR "/linphone/rootca.pem"
  55
  56 static const char *liblinphone_version=
  57 #ifdef LIBLINPHONE_GIT_VERSION
  58         LIBLINPHONE_GIT_VERSION
  59 #else
  60         LIBLINPHONE_VERSION
  61 #endif
  62 ;
  63 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
  64 static void linphone_core_run_hooks(LinphoneCore *lc);
  65 static void linphone_core_free_hooks(LinphoneCore *lc);
  66
  67 #include "enum.h"
  68 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
  69 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result);
  70 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
  71
  72 /* relative path where is stored local ring*/
  73 #define LOCAL_RING "rings/oldphone.wav"
  74 /* same for remote ring (ringback)*/
  75 #define REMOTE_RING "ringback.wav"
  76 #define HOLD_MUSIC "rings/toy-mono.wav"
  77
  78
  79 extern SalCallbacks linphone_sal_callbacks;
  80
  81 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
  82 {
  83   obj->_func=func;
  84   obj->_user_data=ud;
  85 }
  86
  87 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
  88         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
  89         return 0;
  90 }
  91
  92
  93 /*prevent a gcc bug with %c*/
  94 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
  95 #if !defined(_WIN32_WCE)
  96         return strftime(s, max, fmt, tm);
  97 #else
  98         return 0;
  99         /*FIXME*/
 100 #endif /*_WIN32_WCE*/
 101 }
 102
 103 static void set_call_log_date(LinphoneCallLog *cl, time_t start_time){
 104         struct tm loctime;
 105 #ifdef WIN32
 106 #if !defined(_WIN32_WCE)
 107         loctime=*localtime(&start_time);
 108         /*FIXME*/
 109 #endif /*_WIN32_WCE*/
 110 #else
 111         localtime_r(&start_time,&loctime);
 112 #endif
 113         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",&loctime);
 114 }
 115
 116 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 117         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 118         cl->dir=call->dir;
 119         cl->start_date_time=call->start_time;
 120         set_call_log_date(cl,cl->start_date_time);
 121         cl->from=from;
 122         cl->to=to;
 123     cl->status=LinphoneCallAborted; /*default status*/
 124         return cl;
 125 }
 126
 127 void call_logs_write_to_config_file(LinphoneCore *lc){
 128         MSList *elem;
 129         char logsection[32];
 130         int i;
 131         char *tmp;
 132         LpConfig *cfg=lc->config;
 133
 134         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
 135
 136         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
 137                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
 138                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 139                 lp_config_clean_section(cfg,logsection);
 140                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
 141                 lp_config_set_int(cfg,logsection,"status",cl->status);
 142                 tmp=linphone_address_as_string(cl->from);
 143                 lp_config_set_string(cfg,logsection,"from",tmp);
 144                 ms_free(tmp);
 145                 tmp=linphone_address_as_string(cl->to);
 146                 lp_config_set_string(cfg,logsection,"to",tmp);
 147                 ms_free(tmp);
 148                 if (cl->start_date_time)
 149                         lp_config_set_int64(cfg,logsection,"start_date_time",(int64_t)cl->start_date_time);
 150                 else lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
 151                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
 152                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
 153                 lp_config_set_float(cfg,logsection,"quality",cl->quality);
 154                 lp_config_set_int(cfg,logsection,"video_enabled", cl->video_enabled);
 155                 lp_config_set_string(cfg,logsection,"call_id",cl->call_id);
 156         }
 157         for(;i<lc->max_call_logs;++i){
 158                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 159                 lp_config_clean_section(cfg,logsection);
 160         }
 161 }
 162
 163 static time_t string_to_time(const char *date){
 164 #ifndef WIN32
 165         struct tm tmtime={0};
 166         strptime(date,"%c",&tmtime);
 167         return mktime(&tmtime);
 168 #else
 169         return 0;
 170 #endif
 171 }
 172
 173 static void call_logs_read_from_config_file(LinphoneCore *lc){
 174         char logsection[32];
 175         int i;
 176         const char *tmp;
 177         uint64_t sec;
 178         LpConfig *cfg=lc->config;
 179         for(i=0;;++i){
 180                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 181                 if (lp_config_has_section(cfg,logsection)){
 182                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 183                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
 184                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
 185                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
 186                         if (tmp) cl->from=linphone_address_new(tmp);
 187                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
 188                         if (tmp) cl->to=linphone_address_new(tmp);
 189                         sec=lp_config_get_int64(cfg,logsection,"start_date_time",0);
 190                         if (sec) {
 191                                 /*new call log format with date expressed in seconds */
 192                                 cl->start_date_time=(time_t)sec;
 193                                 set_call_log_date(cl,cl->start_date_time);
 194                         }else{
 195                                 tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
 196                                 if (tmp) {
 197                                         strncpy(cl->start_date,tmp,sizeof(cl->start_date));
 198                                         cl->start_date_time=string_to_time(cl->start_date);
 199                                 }
 200                         }
 201                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
 202                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
 203                         if (tmp) cl->refkey=ms_strdup(tmp);
 204                         cl->quality=lp_config_get_float(cfg,logsection,"quality",-1);
 205                         cl->video_enabled=lp_config_get_int(cfg,logsection,"video_enabled",0);
 206                         cl->call_id=lp_config_get_string(cfg,logsection,"call_id",NULL);
 207                         if(cl->call_id) cl->call_id=ms_strdup(cl->call_id);
 208                         lc->call_logs=ms_list_append(lc->call_logs,cl);
 209                 }else break;
 210         }
 211 }
 212
 213
 214
 215 /**
 216  * @addtogroup call_logs
 217  * @{
 218 **/
 219
 220 /**
 221  * Returns a human readable string describing the call.
 222  *
 223  * @note: the returned char* must be freed by the application (use ms_free()).
 224 **/
 225 char * linphone_call_log_to_str(LinphoneCallLog *cl){
 226         char *status;
 227         char *tmp;
 228         char *from=linphone_address_as_string (cl->from);
 229         char *to=linphone_address_as_string (cl->to);
 230         switch(cl->status){
 231                 case LinphoneCallAborted:
 232                         status=_("aborted");
 233                         break;
 234                 case LinphoneCallSuccess:
 235                         status=_("completed");
 236                         break;
 237                 case LinphoneCallMissed:
 238                         status=_("missed");
 239                         break;
 240                 default:
 241                         status="unknown";
 242         }
 243         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
 244                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
 245                         cl->start_date,
 246                         from,
 247                         to,
 248                         status,
 249                         cl->duration/60,
 250                         cl->duration%60);
 251         ms_free(from);
 252         ms_free(to);
 253         return tmp;
 254 }
 255
 256 /**
 257  * Returns RTP statistics computed locally regarding the call.
 258  *
 259 **/
 260 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
 261         return &cl->local_stats;
 262 }
 263
 264 /**
 265  * Returns RTP statistics computed by remote end and sent back via RTCP.
 266  *
 267  * @note Not implemented yet.
 268 **/
 269 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
 270         return &cl->remote_stats;
 271 }
 272
 273 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
 274         cl->user_pointer=up;
 275 }
 276
 277 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
 278         return cl->user_pointer;
 279 }
 280
 281
 282
 283 /**
 284  * Associate a persistent reference key to the call log.
 285  *
 286  * The reference key can be for example an id to an external database.
 287  * It is stored in the config file, thus can survive to process exits/restarts.
 288  *
 289 **/
 290 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
 291         if (cl->refkey!=NULL){
 292                 ms_free(cl->refkey);
 293                 cl->refkey=NULL;
 294         }
 295         if (refkey) cl->refkey=ms_strdup(refkey);
 296 }
 297
 298 /**
 299  * Get the persistent reference key associated to the call log.
 300  *
 301  * The reference key can be for example an id to an external database.
 302  * It is stored in the config file, thus can survive to process exits/restarts.
 303  *
 304 **/
 305 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
 306         return cl->refkey;
 307 }
 308
 309 /** @} */
 310
 311 void linphone_call_log_destroy(LinphoneCallLog *cl){
 312         if (cl->from!=NULL) linphone_address_destroy(cl->from);
 313         if (cl->to!=NULL) linphone_address_destroy(cl->to);
 314         if (cl->refkey!=NULL) ms_free(cl->refkey);
 315         if (cl->call_id) ms_free((void*)cl->call_id);
 316         ms_free(cl);
 317 }
 318
 319 /**
 320  * Returns TRUE if the LinphoneCall asked to autoanswer
 321  *
 322 **/
 323 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
 324         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
 325         if(call)
 326                 return sal_call_autoanswer_asked(call->op);
 327         else
 328                 return FALSE;
 329 }
 330
 331 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
 332         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
 333         if (call)  return linphone_call_get_duration(call);
 334         return -1;
 335 }
 336
 337 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
 338         LinphoneCall *call=linphone_core_get_current_call(lc);
 339         if (call==NULL) return NULL;
 340         return linphone_call_get_remote_address(call);
 341 }
 342
 343 /**
 344  * Enable logs in supplied FILE*.
 345  *
 346  * @ingroup misc
 347  *
 348  * @param file a C FILE* where to fprintf logs. If null stdout is used.
 349  *
 350 **/
 351 void linphone_core_enable_logs(FILE *file){
 352         if (file==NULL) file=stdout;
 353         ortp_set_log_file(file);
 354         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 355 }
 356
 357 /**
 358  * Enable logs through the user's supplied log callback.
 359  *
 360  * @ingroup misc
 361  *
 362  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
 363  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
 364  *
 365 **/
 366 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
 367         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 368         ortp_set_log_handler(logfunc);
 369 }
 370
 371 /**
 372  * Entirely disable logging.
 373  *
 374  * @ingroup misc
 375 **/
 376 void linphone_core_disable_logs(){
 377         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
 378 }
 379
 380
 381 static void net_config_read (LinphoneCore *lc)
 382 {
 383         int tmp;
 384         const char *tmpstr;
 385         LpConfig *config=lc->config;
 386
 387         lc->net_conf.nat_address_ip = NULL;
 388         tmp=lp_config_get_int(config,"net","download_bw",0);
 389         linphone_core_set_download_bandwidth(lc,tmp);
 390         tmp=lp_config_get_int(config,"net","upload_bw",0);
 391         linphone_core_set_upload_bandwidth(lc,tmp);
 392         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
 393         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
 394         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
 395         linphone_core_set_nat_address(lc,tmpstr);
 396         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
 397         linphone_core_set_firewall_policy(lc,tmp);
 398         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
 399         lc->net_conf.nat_sdp_only=tmp;
 400         tmp=lp_config_get_int(lc->config,"net","mtu",0);
 401         linphone_core_set_mtu(lc,tmp);
 402         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 403         linphone_core_set_download_ptime(lc,tmp);
 404
 405 }
 406
 407 static void build_sound_devices_table(LinphoneCore *lc){
 408         const char **devices;
 409         const char **old;
 410         int ndev;
 411         int i;
 412         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
 413         ndev=ms_list_size(elem);
 414         devices=ms_malloc((ndev+1)*sizeof(const char *));
 415         for (i=0;elem!=NULL;elem=elem->next,i++){
 416                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
 417         }
 418         devices[ndev]=NULL;
 419         old=lc->sound_conf.cards;
 420         lc->sound_conf.cards=devices;
 421         if (old!=NULL) ms_free(old);
 422 }
 423
 424 static void sound_config_read(LinphoneCore *lc)
 425 {
 426         int tmp;
 427         const char *tmpbuf;
 428         const char *devid;
 429 #ifdef __linux
 430         /*alsadev let the user use custom alsa device within linphone*/
 431         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
 432         if (devid){
 433                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
 434                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
 435         }
 436         tmp=lp_config_get_int(lc->config,"sound","alsa_forced_rate",-1);
 437         if (tmp>0) ms_alsa_card_set_forced_sample_rate(tmp);
 438 #endif
 439         /* retrieve all sound devices */
 440         build_sound_devices_table(lc);
 441
 442         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
 443         linphone_core_set_playback_device(lc,devid);
 444
 445         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
 446         linphone_core_set_ringer_device(lc,devid);
 447
 448         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
 449         linphone_core_set_capture_device(lc,devid);
 450
 451 /*
 452         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
 453         linphone_core_set_play_level(lc,tmp);
 454         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
 455         linphone_core_set_ring_level(lc,tmp);
 456         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
 457         linphone_core_set_rec_level(lc,tmp);
 458         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
 459         linphone_core_set_sound_source(lc,tmpbuf[0]);
 460 */
 461
 462         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 463         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
 464         if (ortp_file_exist(tmpbuf)==-1) {
 465                 ms_warning("%s does not exist",tmpbuf);
 466                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 467         }
 468         if (strstr(tmpbuf,".wav")==NULL){
 469                 /* it currently uses old sound files, so replace them */
 470                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 471         }
 472         linphone_core_set_ring(lc,tmpbuf);
 473
 474         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 475         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
 476         if (ortp_file_exist(tmpbuf)==-1){
 477                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 478         }
 479         if (strstr(tmpbuf,".wav")==NULL){
 480                 /* it currently uses old sound files, so replace them */
 481                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 482         }
 483         linphone_core_set_ringback(lc,tmpbuf);
 484
 485         linphone_core_set_play_file(lc,lp_config_get_string(lc->config,"sound","hold_music",PACKAGE_SOUND_DIR "/" HOLD_MUSIC));
 486         check_sound_device(lc);
 487         lc->sound_conf.latency=0;
 488 #ifndef __ios
 489     tmp=TRUE;
 490 #else
 491     tmp=FALSE; /* on iOS we have builtin echo cancellation.*/
 492 #endif
 493     tmp=lp_config_get_int(lc->config,"sound","echocancellation",tmp);
 494         linphone_core_enable_echo_cancellation(lc,tmp);
 495         linphone_core_enable_echo_limiter(lc,
 496                 lp_config_get_int(lc->config,"sound","echolimiter",0));
 497         linphone_core_enable_agc(lc,
 498                 lp_config_get_int(lc->config,"sound","agc",0));
 499
 500         linphone_core_set_playback_gain_db (lc,lp_config_get_float(lc->config,"sound","playback_gain_db",0));
 501         linphone_core_set_mic_gain_db (lc,lp_config_get_float(lc->config,"sound","mic_gain_db",0));
 502
 503         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
 504
 505         /*just parse requested stream feature once at start to print out eventual errors*/
 506         linphone_core_get_audio_features(lc);
 507 }
 508
 509 static void sip_config_read(LinphoneCore *lc)
 510 {
 511         char *contact;
 512         const char *tmpstr;
 513         LCSipTransports tr;
 514         int i,tmp;
 515         int ipv6;
 516         int random_port;
 517
 518         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
 519         linphone_core_set_use_info_for_dtmf(lc,tmp);
 520
 521         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
 522                 sal_use_session_timers(lc->sal,200);
 523         }
 524
 525         sal_use_rport(lc->sal,lp_config_get_int(lc->config,"sip","use_rport",1));
 526         sal_use_101(lc->sal,lp_config_get_int(lc->config,"sip","use_101",1));
 527         sal_reuse_authorization(lc->sal, lp_config_get_int(lc->config,"sip","reuse_authorization",0));
 528         sal_expire_old_registration_contacts(lc->sal,lp_config_get_int(lc->config,"sip","expire_old_registration_contacts",0));
 529
 530         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",1);
 531         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
 532
 533         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
 534         if (ipv6==-1){
 535                 ipv6=0;
 536         }
 537         linphone_core_enable_ipv6(lc,ipv6);
 538         memset(&tr,0,sizeof(tr));
 539
 540         tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",0);
 541         tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
 542         tr.tls_port=lp_config_get_int(lc->config,"sip","sip_tls_port",0);
 543
 544         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)==1)
 545                 random_port=(0xDFFF&random())+1024;
 546         else random_port=0;
 547
 548         if (tr.udp_port==0 && tr.tcp_port==0 && tr.tls_port==0){
 549                 tr.udp_port=5060;
 550         }
 551
 552         if (tr.udp_port>0 && random_port){
 553                 tr.udp_port=random_port;
 554                 tr.tls_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 555         }else if (tr.tcp_port>0 && random_port){
 556                 tr.tcp_port=random_port;
 557                 tr.tls_port=tr.udp_port=0; /*make sure only one transport is active at a time*/
 558         }else if (tr.tls_port>0 && random_port){
 559                 tr.tls_port=random_port;
 560                 tr.udp_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 561         }
 562
 563 #ifdef __linux
 564         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", "/etc/ssl/certs"));
 565 #else
 566         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", ROOT_CA_FILE));
 567 #endif
 568         linphone_core_verify_server_certificates(lc,lp_config_get_int(lc->config,"sip","verify_server_certs",TRUE));
 569         /*setting the dscp must be done before starting the transports, otherwise it is not taken into effect*/
 570         sal_set_dscp(lc->sal,linphone_core_get_sip_dscp(lc));
 571         /*start listening on ports*/
 572         linphone_core_set_sip_transports(lc,&tr);
 573
 574         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
 575         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
 576                 const char *hostname=NULL;
 577                 const char *username=NULL;
 578 #ifdef HAVE_GETENV
 579                 hostname=getenv("HOST");
 580                 username=getenv("USER");
 581                 if (hostname==NULL) hostname=getenv("HOSTNAME");
 582 #endif /*HAVE_GETENV*/
 583                 if (hostname==NULL)
 584                         hostname="unknown-host";
 585                 if (username==NULL){
 586                         username="toto";
 587                 }
 588                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
 589                 linphone_core_set_primary_contact(lc,contact);
 590                 ms_free(contact);
 591         }
 592
 593         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
 594         linphone_core_set_guess_hostname(lc,tmp);
 595
 596
 597         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",30);
 598         linphone_core_set_inc_timeout(lc,tmp);
 599
 600         tmp=lp_config_get_int(lc->config,"sip","in_call_timeout",0);
 601         linphone_core_set_in_call_timeout(lc,tmp);
 602
 603         /* get proxies config */
 604         for(i=0;; i++){
 605                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 606                 if (cfg!=NULL){
 607                         linphone_core_add_proxy_config(lc,cfg);
 608                 }else{
 609                         break;
 610                 }
 611         }
 612         /* get the default proxy */
 613         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 614         linphone_core_set_default_proxy_index(lc,tmp);
 615
 616         /* read authentication information */
 617         for(i=0;; i++){
 618                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 619                 if (ai!=NULL){
 620                         linphone_core_add_auth_info(lc,ai);
 621                         linphone_auth_info_destroy(ai);
 622                 }else{
 623                         break;
 624                 }
 625         }
 626         /*this is to filter out unsupported encryption schemes*/
 627         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 628
 629         /*for tuning or test*/
 630         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 631         lc->sip_conf.register_only_when_network_is_up=
 632                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 633         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 634         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
 635         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
 636         sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
 637         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
 638         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
 639         sal_use_dates(lc->sal,lp_config_get_int(lc->config,"sip","put_date",0));
 640 }
 641
 642 static void rtp_config_read(LinphoneCore *lc)
 643 {
 644         int min_port, max_port;
 645         int jitt_comp;
 646         int nortp_timeout;
 647         bool_t rtp_no_xmit_on_audio_mute;
 648         bool_t adaptive_jitt_comp_enabled;
 649
 650         if (lp_config_get_range(lc->config, "rtp", "audio_rtp_port", &min_port, &max_port, 7078, 7078) == TRUE) {
 651                 if (min_port <= 0) min_port = 1;
 652                 if (max_port > 65535) max_port = 65535;
 653                 linphone_core_set_audio_port_range(lc, min_port, max_port);
 654         } else {
 655                 min_port = lp_config_get_int(lc->config, "rtp", "audio_rtp_port", 7078);
 656                 linphone_core_set_audio_port(lc, min_port);
 657         }
 658
 659         if (lp_config_get_range(lc->config, "rtp", "video_rtp_port", &min_port, &max_port, 9078, 9078) == TRUE) {
 660                 if (min_port <= 0) min_port = 1;
 661                 if (max_port > 65535) max_port = 65535;
 662                 linphone_core_set_video_port_range(lc, min_port, max_port);
 663         } else {
 664                 min_port = lp_config_get_int(lc->config, "rtp", "video_rtp_port", 9078);
 665                 linphone_core_set_video_port(lc, min_port);
 666         }
 667
 668         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 669         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 670         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 671         if (jitt_comp==0) jitt_comp=60;
 672         linphone_core_set_video_jittcomp(lc,jitt_comp);
 673         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 674         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 675         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
 676         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
 677         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
 678         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 679         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
 680         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 681 }
 682
 683 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 684         PayloadType *candidate=NULL;
 685         int i;
 686         PayloadType *it;
 687         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 688                 it=rtp_profile_get_payload(prof,i);
 689                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 690                         && (clock_rate==it->clock_rate || clock_rate<=0)
 691                         && (channels==it->channels || channels<=0) ){
 692                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 693                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 694                                 /*exact match*/
 695                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 696                                 return it;
 697                         }else {
 698                                 if (candidate){
 699                                         if (it->recv_fmtp==NULL) candidate=it;
 700                                 }else candidate=it;
 701                         }
 702                 }
 703         }
 704         if (candidate && recv_fmtp){
 705                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 706         }
 707         return candidate;
 708 }
 709
 710 static bool_t get_codec(LinphoneCore *lc, const char* type, int index, PayloadType **ret){
 711         char codeckey[50];
 712         const char *mime,*fmtp;
 713         int rate,channels,enabled;
 714         PayloadType *pt;
 715         LpConfig *config=lc->config;
 716
 717         *ret=NULL;
 718         snprintf(codeckey,50,"%s_%i",type,index);
 719         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 720         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 721
 722         rate=lp_config_get_int(config,codeckey,"rate",8000);
 723         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 724         channels=lp_config_get_int(config,codeckey,"channels",0);
 725         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 726         pt=find_payload(lc->default_profile,mime,rate,channels,fmtp);
 727         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 728         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 729         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 730                         mime,rate,fmtp ? fmtp : "");
 731         *ret=pt;
 732         return TRUE;
 733 }
 734
 735 #define RANK_END 10000
 736
 737 typedef struct codec_desc{
 738         const char *name;
 739         int rate;
 740 }codec_desc_t;
 741
 742 static codec_desc_t codec_pref_order[]={
 743         {"SILK", 16000},
 744         {"speex", 16000},
 745         {"speex", 8000},
 746         {"pcmu",8000},
 747         {"pcma",8000},
 748         {"VP8",90000},
 749         {"H264",90000},
 750         {"MP4V-ES",90000},
 751         {NULL,0}
 752 };
 753
 754 static int find_codec_rank(const char *mime, int clock_rate){
 755         int i;
 756         for(i=0;codec_pref_order[i].name!=NULL;++i){
 757                 if (strcasecmp(codec_pref_order[i].name,mime)==0 && clock_rate==codec_pref_order[i].rate)
 758                         return i;
 759         }
 760         return RANK_END;
 761 }
 762
 763 static int codec_compare(const PayloadType *a, const PayloadType *b){
 764         int ra,rb;
 765         ra=find_codec_rank(a->mime_type,a->clock_rate);
 766         rb=find_codec_rank(b->mime_type,b->clock_rate);
 767         if (ra>rb) return 1;
 768         if (ra<rb) return -1;
 769         return 0;
 770 }
 771
 772 static MSList *add_missing_codecs(LinphoneCore *lc, SalStreamType mtype, MSList *l){
 773         int i;
 774         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 775                 PayloadType *pt=rtp_profile_get_payload(lc->default_profile,i);
 776                 if (pt){
 777                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 778                                 pt=NULL;
 779                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 780                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 781                                 pt=NULL;
 782                         }
 783                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 784                                 if (ms_list_find(l,pt)==NULL){
 785                                         /*unranked codecs are disabled by default*/
 786                                         if (find_codec_rank(pt->mime_type, pt->clock_rate)!=RANK_END){
 787                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 788                                         }
 789                                         ms_message("Adding new codec %s/%i with fmtp %s",
 790                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 791                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 792                                 }
 793                         }
 794                 }
 795         }
 796         return l;
 797 }
 798
 799 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 800         MSList *elem;
 801         for (elem=l;elem!=NULL;elem=elem->next){
 802                 PayloadType *ept=(PayloadType*)elem->data;
 803                 if (pt==ept)
 804                         return l;
 805         }
 806         l=ms_list_append(l,pt);
 807         return l;
 808 }
 809
 810 static void codecs_config_read(LinphoneCore *lc)
 811 {
 812         int i;
 813         PayloadType *pt;
 814         MSList *audio_codecs=NULL;
 815         MSList *video_codecs=NULL;
 816         for (i=0;get_codec(lc,"audio_codec",i,&pt);i++){
 817                 if (pt){
 818                         if (!ms_filter_codec_supported(pt->mime_type)){
 819                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 820                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 821                 }
 822         }
 823         audio_codecs=add_missing_codecs(lc,SalAudio,audio_codecs);
 824         for (i=0;get_codec(lc,"video_codec",i,&pt);i++){
 825                 if (pt){
 826                         if (!ms_filter_codec_supported(pt->mime_type)){
 827                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 828                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 829                 }
 830         }
 831         video_codecs=add_missing_codecs(lc,SalVideo,video_codecs);
 832         linphone_core_set_audio_codecs(lc,audio_codecs);
 833         linphone_core_set_video_codecs(lc,video_codecs);
 834         linphone_core_update_allocated_audio_bandwidth(lc);
 835 }
 836
 837 static void build_video_devices_table(LinphoneCore *lc){
 838         const MSList *elem;
 839         int i;
 840         int ndev;
 841         const char **devices;
 842         if (lc->video_conf.cams)
 843                 ms_free(lc->video_conf.cams);
 844         /* retrieve all video devices */
 845         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 846         ndev=ms_list_size(elem);
 847         devices=ms_malloc((ndev+1)*sizeof(const char *));
 848         for (i=0;elem!=NULL;elem=elem->next,i++){
 849                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 850         }
 851         devices[ndev]=NULL;
 852         lc->video_conf.cams=devices;
 853 }
 854
 855 static void video_config_read(LinphoneCore *lc){
 856 #ifdef VIDEO_ENABLED
 857         int capture, display, self_view;
 858 #endif
 859         const char *str;
 860 #ifdef VIDEO_ENABLED
 861         LinphoneVideoPolicy vpol;
 862         memset(&vpol, 0, sizeof(LinphoneVideoPolicy));
 863 #endif
 864         build_video_devices_table(lc);
 865
 866         str=lp_config_get_string(lc->config,"video","device",NULL);
 867         if (str && str[0]==0) str=NULL;
 868         linphone_core_set_video_device(lc,str);
 869
 870         linphone_core_set_preferred_video_size_by_name(lc,
 871                 lp_config_get_string(lc->config,"video","size","cif"));
 872
 873 #ifdef VIDEO_ENABLED
 874         capture=lp_config_get_int(lc->config,"video","capture",1);
 875         display=lp_config_get_int(lc->config,"video","display",1);
 876         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 877         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 878         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 879         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 880         if(lc->video_conf.displaytype)
 881                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 882
 883         linphone_core_enable_video(lc,capture,display);
 884         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 885         linphone_core_enable_self_view(lc,self_view);
 886         linphone_core_set_video_policy(lc,&vpol);
 887 #endif
 888 }
 889
 890 static void ui_config_read(LinphoneCore *lc)
 891 {
 892         LinphoneFriend *lf;
 893         int i;
 894         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 895                 linphone_core_add_friend(lc,lf);
 896         }
 897         call_logs_read_from_config_file(lc);
 898 }
 899
 900 /*
 901 static void autoreplier_config_init(LinphoneCore *lc)
 902 {
 903         autoreplier_config_t *config=&lc->autoreplier_conf;
 904         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 905         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 906         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 907         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 908         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 909         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 910 }
 911 */
 912
 913 bool_t linphone_core_tunnel_available(void){
 914 #ifdef TUNNEL_ENABLED
 915         return TRUE;
 916 #else
 917         return FALSE;
 918 #endif
 919 }
 920
 921 /**
 922  * Enable adaptive rate control (experimental feature, audio-only).
 923  *
 924  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
 925  * control the output bitrate of the encoders, so that we can adapt to the network conditions and
 926  * available bandwidth.
 927 **/
 928 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
 929         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
 930 }
 931
 932 /**
 933  * Returns whether adaptive rate control is enabled.
 934  *
 935  * See linphone_core_enable_adaptive_rate_control().
 936 **/
 937 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
 938         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
 939 }
 940
 941 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
 942         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
 943 }
 944
 945 /**
 946  * Sets maximum available download bandwidth
 947  *
 948  * @ingroup media_parameters
 949  *
 950  * This is IP bandwidth, in kbit/s.
 951  * This information is used signaled to other parties during
 952  * calls (within SDP messages) so that the remote end can have
 953  * sufficient knowledge to properly configure its audio & video
 954  * codec output bitrate to not overflow available bandwidth.
 955  *
 956  * @param lc the LinphoneCore object
 957  * @param bw the bandwidth in kbits/s, 0 for infinite
 958  */
 959 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
 960         lc->net_conf.download_bw=bw;
 961         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
 962 }
 963
 964 /**
 965  * Sets maximum available upload bandwidth
 966  *
 967  * @ingroup media_parameters
 968  *
 969  * This is IP bandwidth, in kbit/s.
 970  * This information is used by liblinphone together with remote
 971  * side available bandwidth signaled in SDP messages to properly
 972  * configure audio & video codec's output bitrate.
 973  *
 974  * @param lc the LinphoneCore object
 975  * @param bw the bandwidth in kbits/s, 0 for infinite
 976  */
 977 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
 978         lc->net_conf.upload_bw=bw;
 979         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
 980 }
 981
 982 /**
 983  * Retrieve the maximum available download bandwidth.
 984  *
 985  * @ingroup media_parameters
 986  *
 987  * This value was set by linphone_core_set_download_bandwidth().
 988  *
 989 **/
 990 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
 991         return lc->net_conf.download_bw;
 992 }
 993
 994 /**
 995  * Retrieve the maximum available upload bandwidth.
 996  *
 997  * @ingroup media_parameters
 998  *
 999  * This value was set by linphone_core_set_upload_bandwidth().
1000  *
1001 **/
1002 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
1003         return lc->net_conf.upload_bw;
1004 }
1005 /**
1006  * Set audio packetization time linphone expects to receive from peer
1007  */
1008 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
1009         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
1010 }
1011
1012 /**
1013  * Get audio packetization time linphone expects to receive from peer
1014  */
1015 int linphone_core_get_download_ptime(LinphoneCore *lc) {
1016         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
1017 }
1018
1019 /**
1020  * Set audio packetization time linphone will send (in absence of requirement from peer)
1021  * A value of 0 stands for the current codec default packetization time.
1022  *
1023 **/
1024 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
1025         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
1026 }
1027
1028 /**
1029  * Set audio packetization time linphone will send (in absence of requirement from peer)
1030  * A value of 0 stands for the current codec default packetization time.
1031  *
1032 **/
1033 int linphone_core_get_upload_ptime(LinphoneCore *lc){
1034         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
1035 }
1036
1037
1038
1039 /**
1040  * Returns liblinphone's version as a string.
1041  *
1042  * @ingroup misc
1043  *
1044 **/
1045 const char * linphone_core_get_version(void){
1046         return liblinphone_version;
1047 }
1048
1049 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1050         PayloadType *pt;
1051         pt=payload_type_clone(const_pt);
1052         if (number==-1){
1053                 /*look for a free number */
1054                 MSList *elem;
1055                 int i;
1056                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1057                         bool_t already_assigned=FALSE;
1058                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1059                                 PayloadType *it=(PayloadType*)elem->data;
1060                                 if (payload_type_get_number(it)==i){
1061                                         already_assigned=TRUE;
1062                                         break;
1063                                 }
1064                         }
1065                         if (!already_assigned){
1066                                 number=i;
1067                                 lc->dyn_pt=i+1;
1068                                 break;
1069                         }
1070                 }
1071                 if (number==-1){
1072                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1073                 }
1074         }
1075         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1076         payload_type_set_number(pt,number);
1077         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1078         rtp_profile_set_payload(lc->default_profile,number,pt);
1079         lc->payload_types=ms_list_append(lc->payload_types,pt);
1080 }
1081
1082 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1083         RtpProfile *prof=&av_profile;
1084         int i;
1085         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1086                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1087                 if (pt){
1088                         if (payload_type_get_number(pt)!=i){
1089                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1090                         }
1091                 }
1092         }
1093 }
1094
1095 static void linphone_core_free_payload_types(LinphoneCore *lc){
1096         rtp_profile_clear_all(lc->default_profile);
1097         rtp_profile_destroy(lc->default_profile);
1098         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1099         ms_list_free(lc->payload_types);
1100         lc->payload_types=NULL;
1101 }
1102
1103 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1104         lc->state=gstate;
1105         if (lc->vtable.global_state_changed){
1106                 lc->vtable.global_state_changed(lc,gstate,message);
1107         }
1108 }
1109 static void misc_config_read (LinphoneCore *lc) {
1110         LpConfig *config=lc->config;
1111     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1112     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1113 }
1114
1115
1116
1117
1118 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1119     const char *factory_config_path, void * userdata)
1120 {
1121         ms_message("Initializing LinphoneCore %s", linphone_core_get_version());
1122         memset (lc, 0, sizeof (LinphoneCore));
1123         lc->data=userdata;
1124         lc->ringstream_autorelease=TRUE;
1125
1126         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1127
1128         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1129         ortp_init();
1130         lc->dyn_pt=96;
1131         lc->default_profile=rtp_profile_new("default profile");
1132         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1133         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1134         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1135         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1136         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1137         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1138         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1139         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1140
1141 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1142         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1143          - to workaround potential packet losses
1144          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1145          */
1146         _linphone_core_configure_resolver();
1147 #endif
1148
1149 #ifdef ENABLE_NONSTANDARD_GSM
1150         {
1151                 PayloadType *pt;
1152                 pt=payload_type_clone(&payload_type_gsm);
1153                 pt->clock_rate=11025;
1154                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1155                 pt->clock_rate=22050;
1156                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1157                 payload_type_destroy(pt);
1158         }
1159 #endif
1160
1161 #ifdef VIDEO_ENABLED
1162         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1163         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1164         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1165         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1166         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1167         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1168         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1169         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1170         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1171 #endif
1172
1173         /*add all payload type for which we don't care about the number */
1174         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1175         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1176         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1177         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1178         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1179         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1180         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1181         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1182         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1183         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1184         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1185         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1186         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1187         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1188         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1189         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1190         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1191         linphone_core_handle_static_payloads(lc);
1192
1193         ms_init();
1194         /* create a mediastreamer2 event queue and set it as global */
1195         /* This allows to run event's callback in linphone_core_iterate() */
1196         lc->msevq=ms_event_queue_new();
1197         ms_set_global_event_queue(lc->msevq);
1198
1199         lc->config=lp_config_new(config_path);
1200         if (factory_config_path)
1201                 lp_config_read_file(lc->config,factory_config_path);
1202
1203         lc->sal=sal_init();
1204         sal_set_user_pointer(lc->sal,lc);
1205         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1206
1207         lc->network_last_check = 0;
1208         lc->network_last_status = FALSE;
1209
1210         sip_setup_register_all();
1211         sound_config_read(lc);
1212         net_config_read(lc);
1213         rtp_config_read(lc);
1214         codecs_config_read(lc);
1215         sip_config_read(lc); /* this will start eXosip*/
1216         video_config_read(lc);
1217         //autoreplier_config_init(&lc->autoreplier_conf);
1218         lc->presence_mode=LinphoneStatusOnline;
1219         misc_config_read(lc);
1220         ui_config_read(lc);
1221 #ifdef TUNNEL_ENABLED
1222         lc->tunnel=linphone_core_tunnel_new(lc);
1223         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1224 #endif
1225         if (lc->vtable.display_status)
1226                 lc->vtable.display_status(lc,_("Ready"));
1227         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1228         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1229 }
1230
1231 /**
1232  * Instanciates a LinphoneCore object.
1233  * @ingroup initializing
1234  *
1235  * The LinphoneCore object is the primary handle for doing all phone actions.
1236  * It should be unique within your application.
1237  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1238  * @param config_path a path to a config file. If it does not exists it will be created.
1239  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1240  *             become persistent over the life of the LinphoneCore object.
1241  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1242  * @param factory_config_path a path to a read-only config file that can be used to
1243  *        to store hard-coded preference such as proxy settings or internal preferences.
1244  *        The settings in this factory file always override the one in the normal config file.
1245  *        It is OPTIONAL, use NULL if unneeded.
1246  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1247  *        callbacks) using linphone_core_get_user_data().
1248  *
1249 **/
1250 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1251                                                 const char *config_path, const char *factory_config_path, void * userdata)
1252 {
1253         LinphoneCore *core=ms_new(LinphoneCore,1);
1254         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1255         return core;
1256 }
1257
1258 /**
1259  * Returns the list of available audio codecs.
1260  *
1261  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1262  * structure holding the codec information.
1263  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1264  * (such as the order of codecs).
1265 **/
1266 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1267 {
1268         return lc->codecs_conf.audio_codecs;
1269 }
1270
1271 /**
1272  * Returns the list of available video codecs.
1273  *
1274  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1275  * structure holding the codec information.
1276  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1277  * (such as the order of codecs).
1278 **/
1279 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1280 {
1281         return lc->codecs_conf.video_codecs;
1282 }
1283
1284 /**
1285  * Sets the local "from" identity.
1286  *
1287  * @ingroup proxies
1288  * This data is used in absence of any proxy configuration or when no
1289  * default proxy configuration is set. See LinphoneProxyConfig
1290 **/
1291 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1292 {
1293         LinphoneAddress *ctt;
1294
1295         if ((ctt=linphone_address_new(contact))==0) {
1296                 ms_error("Bad contact url: %s",contact);
1297                 return -1;
1298         }
1299         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1300         lc->sip_conf.contact=ms_strdup(contact);
1301         if (lc->sip_conf.guessed_contact!=NULL){
1302                 ms_free(lc->sip_conf.guessed_contact);
1303                 lc->sip_conf.guessed_contact=NULL;
1304         }
1305         linphone_address_destroy(ctt);
1306         return 0;
1307 }
1308
1309
1310 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1311 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1312         const char *ip;
1313         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1314             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1315                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1316                 return;
1317         }
1318         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1319                 return;
1320         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1321         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1322 }
1323
1324 static void update_primary_contact(LinphoneCore *lc){
1325         char *guessed=NULL;
1326         char tmp[LINPHONE_IPADDR_SIZE];
1327
1328         LinphoneAddress *url;
1329         if (lc->sip_conf.guessed_contact!=NULL){
1330                 ms_free(lc->sip_conf.guessed_contact);
1331                 lc->sip_conf.guessed_contact=NULL;
1332         }
1333         url=linphone_address_new(lc->sip_conf.contact);
1334         if (!url){
1335                 ms_error("Could not parse identity contact !");
1336                 url=linphone_address_new("sip:unknown@unkwownhost");
1337         }
1338         linphone_core_get_local_ip(lc, NULL, tmp);
1339         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1340                 ms_warning("Local loopback network only !");
1341                 lc->sip_conf.loopback_only=TRUE;
1342         }else lc->sip_conf.loopback_only=FALSE;
1343         linphone_address_set_domain(url,tmp);
1344         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1345         guessed=linphone_address_as_string(url);
1346         lc->sip_conf.guessed_contact=guessed;
1347         linphone_address_destroy(url);
1348 }
1349
1350 /**
1351  * Returns the default identity when no proxy configuration is used.
1352  *
1353  * @ingroup proxies
1354 **/
1355 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1356         char *identity;
1357
1358         if (lc->sip_conf.guess_hostname){
1359                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1360                         update_primary_contact(lc);
1361                 }
1362                 identity=lc->sip_conf.guessed_contact;
1363         }else{
1364                 identity=lc->sip_conf.contact;
1365         }
1366         return identity;
1367 }
1368
1369 /**
1370  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1371  *
1372  * @ingroup proxies
1373 **/
1374 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1375         lc->sip_conf.guess_hostname=val;
1376 }
1377
1378 /**
1379  * Returns TRUE if hostname part of primary contact is guessed automatically.
1380  *
1381  * @ingroup proxies
1382 **/
1383 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1384         return lc->sip_conf.guess_hostname;
1385 }
1386
1387 /**
1388  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1389  * instead of const char*
1390  *
1391  * @ingroup proxies
1392 **/
1393 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1394         return linphone_address_new(linphone_core_get_primary_contact(lc));
1395 }
1396
1397 /**
1398  * Sets the list of audio codecs.
1399  *
1400  * @ingroup media_parameters
1401  * The list is taken by the LinphoneCore thus the application should not free it.
1402  * This list is made of struct PayloadType describing the codec parameters.
1403 **/
1404 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1405 {
1406         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1407         lc->codecs_conf.audio_codecs=codecs;
1408         _linphone_core_codec_config_write(lc);
1409         return 0;
1410 }
1411
1412 /**
1413  * Sets the list of video codecs.
1414  *
1415  * @ingroup media_parameters
1416  * The list is taken by the LinphoneCore thus the application should not free it.
1417  * This list is made of struct PayloadType describing the codec parameters.
1418 **/
1419 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1420 {
1421         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1422         lc->codecs_conf.video_codecs=codecs;
1423         _linphone_core_codec_config_write(lc);
1424         return 0;
1425 }
1426
1427 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1428 {
1429         return lc->friends;
1430 }
1431
1432 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1433 {
1434         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1435 }
1436
1437 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1438 {
1439         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1440 }
1441
1442 /**
1443  * Returns the nominal audio jitter buffer size in milliseconds.
1444  *
1445  * @ingroup media_parameters
1446 **/
1447 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1448 {
1449         return lc->rtp_conf.audio_jitt_comp;
1450 }
1451
1452 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1453 {
1454         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1455 }
1456
1457 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1458 {
1459         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1460 }
1461
1462 /**
1463  * Returns the nominal video jitter buffer size in milliseconds.
1464  *
1465  * @ingroup media_parameters
1466 **/
1467 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1468 {
1469         return lc->rtp_conf.video_jitt_comp;
1470 }
1471
1472 /**
1473  * Returns the UDP port used for audio streaming.
1474  *
1475  * @ingroup network_parameters
1476 **/
1477 int linphone_core_get_audio_port(const LinphoneCore *lc)
1478 {
1479         return lc->rtp_conf.audio_rtp_min_port;
1480 }
1481
1482 /**
1483  * Get the audio port range from which is randomly chosen the UDP port used for audio streaming.
1484  *
1485  * @ingroup network_parameters
1486  */
1487 void linphone_core_get_audio_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1488 {
1489         *min_port = lc->rtp_conf.audio_rtp_min_port;
1490         *max_port = lc->rtp_conf.audio_rtp_max_port;
1491 }
1492
1493 /**
1494  * Returns the UDP port used for video streaming.
1495  *
1496  * @ingroup network_parameters
1497 **/
1498 int linphone_core_get_video_port(const LinphoneCore *lc){
1499         return lc->rtp_conf.video_rtp_min_port;
1500 }
1501
1502 /**
1503  * Get the video port range from which is randomly chosen the UDP port used for video streaming.
1504  *
1505  * @ingroup network_parameters
1506  */
1507 void linphone_core_get_video_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1508 {
1509         *min_port = lc->rtp_conf.video_rtp_min_port;
1510         *max_port = lc->rtp_conf.video_rtp_max_port;
1511 }
1512
1513
1514 /**
1515  * Returns the value in seconds of the no-rtp timeout.
1516  *
1517  * @ingroup media_parameters
1518  * When no RTP or RTCP packets have been received for a while
1519  * LinphoneCore will consider the call is broken (remote end crashed or
1520  * disconnected from the network), and thus will terminate the call.
1521  * The no-rtp timeout is the duration above which the call is considered broken.
1522 **/
1523 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1524         return lc->rtp_conf.nortp_timeout;
1525 }
1526
1527 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1528         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1529 }
1530
1531 /**
1532  * Sets the nominal audio jitter buffer size in milliseconds.
1533  *
1534  * @ingroup media_parameters
1535 **/
1536 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1537 {
1538         lc->rtp_conf.audio_jitt_comp=value;
1539 }
1540
1541 /**
1542  * Sets the nominal video jitter buffer size in milliseconds.
1543  *
1544  * @ingroup media_parameters
1545 **/
1546 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1547 {
1548         lc->rtp_conf.video_jitt_comp=value;
1549 }
1550
1551 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1552         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1553 }
1554
1555 /**
1556  * Sets the UDP port used for audio streaming.
1557  *
1558  * @ingroup network_parameters
1559 **/
1560 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1561 {
1562         lc->rtp_conf.audio_rtp_min_port=lc->rtp_conf.audio_rtp_max_port=port;
1563 }
1564
1565 /**
1566  * Sets the UDP port range from which to randomly select the port used for audio streaming.
1567  */
1568 void linphone_core_set_audio_port_range(LinphoneCore *lc, int min_port, int max_port)
1569 {
1570         lc->rtp_conf.audio_rtp_min_port=min_port;
1571         lc->rtp_conf.audio_rtp_max_port=max_port;
1572 }
1573
1574 /**
1575  * Sets the UDP port used for video streaming.
1576  *
1577  * @ingroup network_parameters
1578 **/
1579 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1580         lc->rtp_conf.video_rtp_min_port=lc->rtp_conf.video_rtp_max_port=port;
1581 }
1582
1583 /**
1584  * Sets the UDP port range from which to randomly select the port used for video streaming.
1585  */
1586 void linphone_core_set_video_port_range(LinphoneCore *lc, int min_port, int max_port)
1587 {
1588         lc->rtp_conf.video_rtp_min_port=min_port;
1589         lc->rtp_conf.video_rtp_max_port=max_port;
1590 }
1591
1592 /**
1593  * Sets the no-rtp timeout value in seconds.
1594  *
1595  * @ingroup media_parameters
1596  * See linphone_core_get_nortp_timeout() for details.
1597 **/
1598 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1599         lc->rtp_conf.nortp_timeout=nortp_timeout;
1600 }
1601
1602 /**
1603  * Indicates whether SIP INFO is used for sending digits.
1604  *
1605  * @ingroup media_parameters
1606 **/
1607 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1608 {
1609         return lc->sip_conf.use_info;
1610 }
1611
1612 /**
1613  * Sets whether SIP INFO is to be used for sending digits.
1614  *
1615  * @ingroup media_parameters
1616 **/
1617 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1618 {
1619         lc->sip_conf.use_info=use_info;
1620 }
1621
1622 /**
1623  * Indicates whether RFC2833 is used for sending digits.
1624  *
1625  * @ingroup media_parameters
1626 **/
1627 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1628 {
1629         return lc->sip_conf.use_rfc2833;
1630 }
1631
1632 /**
1633  * Sets whether RFC2833 is to be used for sending digits.
1634  *
1635  * @ingroup media_parameters
1636 **/
1637 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1638 {
1639         lc->sip_conf.use_rfc2833=use_rfc2833;
1640 }
1641
1642 /**
1643  * Returns the UDP port used by SIP.
1644  *
1645  * Deprecated: use linphone_core_get_sip_transports() instead.
1646  * @ingroup network_parameters
1647 **/
1648 int linphone_core_get_sip_port(LinphoneCore *lc)
1649 {
1650         LCSipTransports *tr=&lc->sip_conf.transports;
1651         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1652 }
1653
1654 static char _ua_name[64]="Linphone";
1655 static char _ua_version[64]=LINPHONE_VERSION;
1656
1657 #ifdef HAVE_EXOSIP_GET_VERSION
1658 extern const char *eXosip_get_version();
1659 #endif
1660
1661 static void apply_user_agent(LinphoneCore *lc){
1662         char ua_string[256];
1663         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1664 #ifdef HAVE_EXOSIP_GET_VERSION
1665                  eXosip_get_version()
1666 #else
1667                  "unknown"
1668 #endif
1669         );
1670         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1671 }
1672
1673 /**
1674  * Sets the user agent string used in SIP messages.
1675  *
1676  * @ingroup misc
1677 **/
1678 void linphone_core_set_user_agent(LinphoneCore *lc, const char *name, const char *ver){
1679         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1680         strncpy(_ua_version,ver,sizeof(_ua_version));
1681         apply_user_agent(lc);
1682 }
1683
1684 const char *linphone_core_get_user_agent_name(void){
1685         return _ua_name;
1686 }
1687
1688 const char *linphone_core_get_user_agent_version(void){
1689         return _ua_version;
1690 }
1691
1692 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1693         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1694         ms_warning("%s",msg);
1695         if (lc->vtable.display_warning)
1696                 lc->vtable.display_warning(lc,msg);
1697         ms_free(msg);
1698 }
1699
1700 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1701         return
1702                 tr2->udp_port==tr1->udp_port &&
1703                 tr2->tcp_port==tr1->tcp_port &&
1704                 tr2->dtls_port==tr1->dtls_port &&
1705                 tr2->tls_port==tr1->tls_port;
1706 }
1707
1708 static int apply_transports(LinphoneCore *lc){
1709         Sal *sal=lc->sal;
1710         const char *anyaddr;
1711         LCSipTransports *tr=&lc->sip_conf.transports;
1712
1713         /*first of all invalidate all current registrations so that we can register again with new transports*/
1714         __linphone_core_invalidate_registers(lc);
1715
1716         if (lc->sip_conf.ipv6_enabled)
1717                 anyaddr="::0";
1718         else
1719                 anyaddr="0.0.0.0";
1720
1721         sal_unlisten_ports(sal);
1722         if (tr->udp_port>0){
1723                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1724                         transport_error(lc,"udp",tr->udp_port);
1725                         return -1;
1726                 }
1727         }
1728         if (tr->tcp_port>0){
1729                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1730                         transport_error(lc,"tcp",tr->tcp_port);
1731                 }
1732         }
1733         if (tr->tls_port>0){
1734                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1735                         transport_error(lc,"tls",tr->tls_port);
1736                 }
1737         }
1738         apply_user_agent(lc);
1739         return 0;
1740 }
1741
1742 /**
1743  * Sets the ports to be used for each of transport (UDP or TCP)
1744  *
1745  * A zero value port for a given transport means the transport
1746  * is not used.
1747  *
1748  * @ingroup network_parameters
1749 **/
1750 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1751
1752         if (transports_unchanged(tr,&lc->sip_conf.transports))
1753                 return 0;
1754         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1755
1756         if (linphone_core_ready(lc)){
1757                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1758                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1759                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1760         }
1761
1762         if (lc->sal==NULL) return 0;
1763         return apply_transports(lc);
1764 }
1765
1766 /**
1767  * Retrieves the ports used for each transport (udp, tcp).
1768  * A zero value port for a given transport means the transport
1769  * is not used.
1770  * @ingroup network_parameters
1771 **/
1772 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1773         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1774         return 0;
1775 }
1776
1777 /**
1778  * Sets the UDP port to be used by SIP.
1779  *
1780  * Deprecated: use linphone_core_set_sip_transports() instead.
1781  * @ingroup network_parameters
1782 **/
1783 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1784 {
1785         LCSipTransports tr;
1786         memset(&tr,0,sizeof(tr));
1787         tr.udp_port=port;
1788         linphone_core_set_sip_transports (lc,&tr);
1789 }
1790
1791 /**
1792  * Returns TRUE if IPv6 is enabled.
1793  *
1794  * @ingroup network_parameters
1795  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1796 **/
1797 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1798         return lc->sip_conf.ipv6_enabled;
1799 }
1800
1801 /**
1802  * Turns IPv6 support on or off.
1803  *
1804  * @ingroup network_parameters
1805  *
1806  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1807  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1808  * By default IPv6 support is off.
1809 **/
1810 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1811         if (lc->sip_conf.ipv6_enabled!=val){
1812                 lc->sip_conf.ipv6_enabled=val;
1813                 if (lc->sal){
1814                         /* we need to restart eXosip */
1815                         apply_transports(lc);
1816                 }
1817         }
1818 }
1819
1820
1821 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1822         char result[LINPHONE_IPADDR_SIZE];
1823         bool_t new_status=lc->network_last_status;
1824
1825         /* only do the network up checking every five seconds */
1826         if (lc->network_last_check==0 || (curtime-lc->network_last_check)>=5){
1827                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1828                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1829                         new_status=TRUE;
1830                 }else new_status=FALSE;
1831                 lc->network_last_check=curtime;
1832                 if (new_status!=lc->network_last_status) {
1833                         if (new_status){
1834                                 ms_message("New local ip address is %s",result);
1835                         }
1836                         set_network_reachable(lc,new_status, curtime);
1837                         lc->network_last_status=new_status;
1838                 }
1839         }
1840 }
1841
1842 static void proxy_update(LinphoneCore *lc){
1843         MSList *elem,*next;
1844         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1845         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1846                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1847                 next=elem->next;
1848                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1849                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1850                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1851                         linphone_proxy_config_destroy(cfg);
1852                 }
1853         }
1854 }
1855
1856 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1857         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1858         if (lf!=NULL){
1859                 lf->info=info;
1860                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1861                 if (lc->vtable.buddy_info_updated)
1862                         lc->vtable.buddy_info_updated(lc,lf);
1863         }else{
1864                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1865         }
1866 }
1867
1868 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1869         MSList *elem;
1870         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1871         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1872                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1873                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1874                         if (req->results!=NULL){
1875                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1876                                 ms_list_free(req->results);
1877                                 req->results=NULL;
1878                                 assign_buddy_info(lc,i);
1879                         }
1880                         sip_setup_context_buddy_lookup_free(ctx,req);
1881                         elem->data=NULL;
1882                 }
1883         }
1884         /*purge completed requests */
1885         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1886                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1887         }
1888 }
1889
1890 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1891         const MSList *elem;
1892         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1893         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1894                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1895                 if (lf->info==NULL){
1896                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1897                                 if (linphone_address_get_username(lf->uri)!=NULL){
1898                                         BuddyLookupRequest *req;
1899                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1900                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1901                                         buddy_lookup_request_set_key(req,tmp);
1902                                         buddy_lookup_request_set_max_results(req,1);
1903                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1904                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
1905                                         ms_free(tmp);
1906                                 }
1907                         }
1908                 }
1909         }
1910 }
1911
1912 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
1913         LinphoneProxyConfig *cfg=NULL;
1914         linphone_core_get_default_proxy(lc,&cfg);
1915         if (cfg){
1916                 if (lc->bl_refresh){
1917                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1918                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
1919                                 linphone_core_grab_buddy_infos(lc,cfg);
1920                                 lc->bl_refresh=FALSE;
1921                         }
1922                 }
1923                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
1924         }
1925 }
1926
1927 /**
1928  * Main loop function. It is crucial that your application call it periodically.
1929  *
1930  * @ingroup initializing
1931  * linphone_core_iterate() performs various backgrounds tasks:
1932  * - receiving of SIP messages
1933  * - handles timers and timeout
1934  * - performs registration to proxies
1935  * - authentication retries
1936  * The application MUST call this function periodically, in its main loop.
1937  * Be careful that this function must be called from the same thread as
1938  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
1939  * serialized with a mutex.
1940 **/
1941 void linphone_core_iterate(LinphoneCore *lc){
1942         MSList *calls;
1943         LinphoneCall *call;
1944         time_t curtime=time(NULL);
1945         int elapsed;
1946         bool_t one_second_elapsed=FALSE;
1947
1948         if (curtime-lc->prevtime>=1){
1949                 lc->prevtime=curtime;
1950                 one_second_elapsed=TRUE;
1951         }
1952
1953         if (lc->ecc!=NULL){
1954                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
1955                 if (ecs!=LinphoneEcCalibratorInProgress){
1956                         if (lc->ecc->cb)
1957                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
1958                         if (ecs==LinphoneEcCalibratorDone){
1959                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
1960                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-(len/2),0));
1961                         } else if (ecs == LinphoneEcCalibratorFailed) {
1962                                 lp_config_set_int(lc->config, "sound", "ec_delay", LP_CONFIG_DEFAULT_INT(lc->config, "ec_delay", 250));
1963                         } else if (ecs == LinphoneEcCalibratorDoneNoEcho) {
1964                                 linphone_core_enable_echo_cancellation(lc, FALSE);
1965                         }
1966                         ec_calibrator_destroy(lc->ecc);
1967                         lc->ecc=NULL;
1968                 }
1969         }
1970
1971         if (lc->preview_finished){
1972                 lc->preview_finished=0;
1973                 ring_stop(lc->ringstream);
1974                 lc->ringstream=NULL;
1975                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
1976         }
1977
1978         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
1979             && (curtime-lc->dmfs_playing_start_time)>5){
1980                 ring_stop(lc->ringstream);
1981                 lc->ringstream=NULL;
1982                 lc->dmfs_playing_start_time=0;
1983         }
1984
1985         sal_iterate(lc->sal);
1986         if (lc->msevq) ms_event_queue_pump(lc->msevq);
1987         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
1988
1989         proxy_update(lc);
1990
1991         //we have to iterate for each call
1992         calls= lc->calls;
1993         while(calls!= NULL){
1994                 call = (LinphoneCall *)calls->data;
1995                 elapsed = curtime-call->start_time;
1996                  /* get immediately a reference to next one in case the one
1997                  we are going to examine is destroy and removed during
1998                  linphone_core_start_invite() */
1999                 calls=calls->next;
2000                 linphone_call_background_tasks(call,one_second_elapsed);
2001                 if (call->state==LinphoneCallOutgoingInit && (curtime-call->start_time>=2)){
2002                         /*start the call even if the OPTIONS reply did not arrive*/
2003                         if (call->ice_session != NULL) {
2004                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
2005                                                 ,linphone_core_get_stun_server(lc));
2006                                 linphone_call_delete_ice_session(call);
2007                                 linphone_call_stop_media_streams_for_ice_gathering(call);
2008                         }
2009                         linphone_core_start_invite(lc,call);
2010                 }
2011                 if (call->state==LinphoneCallIncomingReceived){
2012                         ms_message("incoming call ringing for %i seconds",elapsed);
2013                         if (elapsed>lc->sip_conf.inc_timeout){
2014                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
2015                                 call->log->status=LinphoneCallMissed;
2016                                 call->reason=LinphoneReasonNotAnswered;
2017                                 linphone_core_terminate_call(lc,call);
2018                         }
2019                 }
2020                 if (lc->sip_conf.in_call_timeout > 0 && elapsed>lc->sip_conf.in_call_timeout) {
2021                         ms_message("in call timeout (%i)",lc->sip_conf.in_call_timeout);
2022                         linphone_core_terminate_call(lc,call);
2023                 }
2024         }
2025
2026         if (linphone_core_video_preview_enabled(lc)){
2027                 if (lc->previewstream==NULL && lc->calls==NULL)
2028                         toggle_video_preview(lc,TRUE);
2029 #ifdef VIDEO_ENABLED
2030                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
2031 #endif
2032         }else{
2033                 if (lc->previewstream!=NULL)
2034                         toggle_video_preview(lc,FALSE);
2035         }
2036
2037         linphone_core_run_hooks(lc);
2038         linphone_core_do_plugin_tasks(lc);
2039
2040         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
2041             (curtime-lc->netup_time)>3){
2042                 linphone_core_send_initial_subscribes(lc);
2043                 lc->initial_subscribes_sent=TRUE;
2044         }
2045
2046         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
2047                 lp_config_sync(lc->config);
2048         }
2049 }
2050
2051 /**
2052  * Interpret a call destination as supplied by the user, and returns a fully qualified
2053  * LinphoneAddress.
2054  *
2055  * A sip address should look like DisplayName <sip:username@domain:port> .
2056  * Basically this function performs the following tasks
2057  * - if a phone number is entered, prepend country prefix of the default proxy
2058  *   configuration, eventually escape the '+' by 00.
2059  * - if no domain part is supplied, append the domain name of the default proxy
2060  * - if no sip: is present, prepend it
2061  *
2062  * The result is a syntaxically correct SIP address.
2063 **/
2064
2065 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
2066         enum_lookup_res_t *enumres=NULL;
2067         char *enum_domain=NULL;
2068         LinphoneProxyConfig *proxy=lc->default_proxy;;
2069         char *tmpurl;
2070         LinphoneAddress *uri;
2071
2072         if (is_enum(url,&enum_domain)){
2073                 if (lc->vtable.display_status!=NULL)
2074                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
2075                 if (enum_lookup(enum_domain,&enumres)<0){
2076                         if (lc->vtable.display_status!=NULL)
2077                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
2078                         ms_free(enum_domain);
2079                         return NULL;
2080                 }
2081                 ms_free(enum_domain);
2082                 tmpurl=enumres->sip_address[0];
2083                 uri=linphone_address_new(tmpurl);
2084                 enum_lookup_res_free(enumres);
2085                 return uri;
2086         }
2087         /* check if we have a "sip:" */
2088         if (strstr(url,"sip:")==NULL){
2089                 /* this doesn't look like a true sip uri */
2090                 if (strchr(url,'@')!=NULL){
2091                         /* seems like sip: is missing !*/
2092                         tmpurl=ms_strdup_printf("sip:%s",url);
2093                         uri=linphone_address_new(tmpurl);
2094                         ms_free(tmpurl);
2095                         if (uri){
2096                                 return uri;
2097                         }
2098                 }
2099
2100                 if (proxy!=NULL){
2101                         /* append the proxy domain suffix */
2102                         const char *identity=linphone_proxy_config_get_identity(proxy);
2103                         char normalized_username[128];
2104                         uri=linphone_address_new(identity);
2105                         if (uri==NULL){
2106                                 return NULL;
2107                         }
2108                         linphone_address_set_display_name(uri,NULL);
2109                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2110                                                                 sizeof(normalized_username));
2111                         linphone_address_set_username(uri,normalized_username);
2112                         return uri;
2113                 }else return NULL;
2114         }
2115         uri=linphone_address_new(url);
2116         if (uri!=NULL){
2117                 return uri;
2118         }
2119         /* else we could not do anything with url given by user, so display an error */
2120         if (lc->vtable.display_warning!=NULL){
2121                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2122         }
2123         return NULL;
2124 }
2125
2126 /**
2127  * Returns the default identity SIP address.
2128  *
2129  * @ingroup proxies
2130  * This is an helper function:
2131  *
2132  * If no default proxy is set, this will return the primary contact (
2133  * see linphone_core_get_primary_contact() ). If a default proxy is set
2134  * it returns the registered identity on the proxy.
2135 **/
2136 const char * linphone_core_get_identity(LinphoneCore *lc){
2137         LinphoneProxyConfig *proxy=NULL;
2138         const char *from;
2139         linphone_core_get_default_proxy(lc,&proxy);
2140         if (proxy!=NULL) {
2141                 from=linphone_proxy_config_get_identity(proxy);
2142         }else from=linphone_core_get_primary_contact(lc);
2143         return from;
2144 }
2145
2146 const char * linphone_core_get_route(LinphoneCore *lc){
2147         LinphoneProxyConfig *proxy=NULL;
2148         const char *route=NULL;
2149         linphone_core_get_default_proxy(lc,&proxy);
2150         if (proxy!=NULL) {
2151                 route=linphone_proxy_config_get_route(proxy);
2152         }
2153         return route;
2154 }
2155
2156 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2157         if (call->refer_pending){
2158                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2159                 LinphoneCall *newcall;
2160                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2161                 cp->referer=call;
2162                 ms_message("Starting new call to refered address %s",call->refer_to);
2163                 call->refer_pending=FALSE;
2164                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2165                 linphone_call_params_destroy(cp);
2166                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2167         }
2168 }
2169
2170 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2171         if (referer->op!=NULL){
2172                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2173         }
2174 }
2175
2176 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2177         const MSList *elem;
2178         LinphoneProxyConfig *found_cfg=NULL;
2179         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2180
2181         /*always prefer the default proxy if it is matching the destination uri*/
2182         if (default_cfg){
2183                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2184                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2185                         return default_cfg;
2186         }
2187
2188         /*otherwise iterate through the other proxy config and return the first matching*/
2189         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2190                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2191                 const char *domain=linphone_proxy_config_get_domain(cfg);
2192                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2193                         found_cfg=cfg;
2194                         break;
2195                 }
2196         }
2197         return found_cfg;
2198 }
2199
2200 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2201         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2202         if (cfg==NULL)
2203                 linphone_core_get_default_proxy (lc,&cfg);
2204         if (cfg!=NULL){
2205                 if (route) *route=linphone_proxy_config_get_route(cfg);
2206                 return linphone_proxy_config_get_identity (cfg);
2207         }
2208         return linphone_core_get_primary_contact (lc);
2209 }
2210
2211 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2212         LinphoneAddress *ctt;
2213         const char *localip=call->localip;
2214
2215         /* first use user's supplied ip address if asked*/
2216         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2217                 ctt=linphone_core_get_primary_contact_parsed(lc);
2218                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2219                         linphone_core_get_nat_address_resolved(lc));
2220         }
2221
2222         /* if already choosed, don't change it */
2223         if (call->op && sal_op_get_contact(call->op)!=NULL){
2224                 return NULL;
2225         }
2226         /* if the ping OPTIONS request succeeded use the contact guessed from the
2227          received, rport*/
2228         if (call->ping_op){
2229                 const char *guessed=sal_op_get_contact(call->ping_op);
2230                 if (guessed){
2231                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2232                         return ms_strdup(guessed);
2233                 }
2234         }
2235
2236         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2237         if (dest_proxy && dest_proxy->op){
2238                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2239                 if (fixed_contact) {
2240                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2241                         return ms_strdup(fixed_contact);
2242                 }
2243         }
2244
2245         ctt=linphone_core_get_primary_contact_parsed(lc);
2246
2247         if (ctt!=NULL){
2248                 char *ret;
2249                 /*otherwise use supllied localip*/
2250                 linphone_address_set_domain(ctt,localip);
2251                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2252                 ret=linphone_address_as_string_uri_only(ctt);
2253                 linphone_address_destroy(ctt);
2254                 ms_message("Contact has been fixed using local ip to %s",ret);
2255                 return ret;
2256         }
2257         return NULL;
2258 }
2259
2260 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2261         bool_t ice_ready = FALSE;
2262         bool_t ping_ready = FALSE;
2263
2264         if (call->ice_session != NULL) {
2265                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2266         } else {
2267                 ice_ready = TRUE;
2268         }
2269         if (call->ping_op != NULL) {
2270                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2271         } else {
2272                 ping_ready = TRUE;
2273         }
2274
2275         if ((ice_ready == TRUE) && (ping_ready == TRUE)) {
2276                 return linphone_core_start_invite(lc, call);
2277         }
2278         return 0;
2279 }
2280
2281 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2282         int err;
2283         char *contact;
2284         char *real_url,*barmsg;
2285         char *from;
2286         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2287
2288         /*try to be best-effort in giving real local or routable contact address */
2289         contact=get_fixed_contact(lc,call,dest_proxy);
2290         if (contact){
2291                 sal_op_set_contact(call->op, contact);
2292                 ms_free(contact);
2293         }
2294         linphone_core_stop_dtmf_stream(lc);
2295         linphone_call_init_media_streams(call);
2296         if (lc->ringstream==NULL)
2297                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2298         linphone_call_make_local_media_description(lc,call);
2299         if (!lc->sip_conf.sdp_200_ack){
2300                 call->media_pending=TRUE;
2301                 sal_call_set_local_media_description(call->op,call->localdesc);
2302         }
2303         real_url=linphone_address_as_string(call->log->to);
2304         from=linphone_address_as_string(call->log->from);
2305         err=sal_call(call->op,from,real_url);
2306         call->log->call_id=ms_strdup(sal_op_get_call_id(call->op)); /*must be known at that time*/
2307
2308         if (lc->sip_conf.sdp_200_ack){
2309                 call->media_pending=TRUE;
2310                 sal_call_set_local_media_description(call->op,call->localdesc);
2311         }
2312         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2313         if (lc->vtable.display_status!=NULL)
2314                 lc->vtable.display_status(lc,barmsg);
2315         ms_free(barmsg);
2316
2317         if (err<0){
2318                 if (lc->vtable.display_status!=NULL)
2319                         lc->vtable.display_status(lc,_("Could not call"));
2320                 linphone_call_stop_media_streams(call);
2321                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2322         }else {
2323                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2324         }
2325         ms_free(real_url);
2326         ms_free(from);
2327         return err;
2328 }
2329
2330 /**
2331  * Initiates an outgoing call
2332  *
2333  * @ingroup call_control
2334  * @param lc the LinphoneCore object
2335  * @param url the destination of the call (sip address, or phone number).
2336  *
2337  * The application doesn't own a reference to the returned LinphoneCall object.
2338  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2339  *
2340  * @return a LinphoneCall object or NULL in case of failure
2341 **/
2342 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2343         LinphoneCall *call;
2344         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2345         p->has_video &= !!lc->video_policy.automatically_initiate;
2346         call=linphone_core_invite_with_params(lc,url,p);
2347         linphone_call_params_destroy(p);
2348         return call;
2349 }
2350
2351
2352 /**
2353  * Initiates an outgoing call according to supplied call parameters
2354  *
2355  * @ingroup call_control
2356  * @param lc the LinphoneCore object
2357  * @param url the destination of the call (sip address, or phone number).
2358  * @param p call parameters
2359  *
2360  * The application doesn't own a reference to the returned LinphoneCall object.
2361  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2362  *
2363  * @return a LinphoneCall object or NULL in case of failure
2364 **/
2365 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2366         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2367         if (addr){
2368                 LinphoneCall *call;
2369                 call=linphone_core_invite_address_with_params(lc,addr,p);
2370                 linphone_address_destroy(addr);
2371                 return call;
2372         }
2373         return NULL;
2374 }
2375
2376 /**
2377  * Initiates an outgoing call given a destination LinphoneAddress
2378  *
2379  * @ingroup call_control
2380  * @param lc the LinphoneCore object
2381  * @param addr the destination of the call (sip address).
2382  *
2383  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2384  * created by linphone_core_interpret_url().
2385  * The application doesn't own a reference to the returned LinphoneCall object.
2386  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2387  *
2388  * @return a LinphoneCall object or NULL in case of failure
2389 **/
2390 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2391         LinphoneCall *call;
2392         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2393         p->has_video &= !!lc->video_policy.automatically_initiate;
2394         call=linphone_core_invite_address_with_params (lc,addr,p);
2395         linphone_call_params_destroy(p);
2396         return call;
2397 }
2398
2399
2400 /**
2401  * Initiates an outgoing call given a destination LinphoneAddress
2402  *
2403  * @ingroup call_control
2404  * @param lc the LinphoneCore object
2405  * @param addr the destination of the call (sip address).
2406         @param params call parameters
2407  *
2408  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2409  * created by linphone_core_interpret_url().
2410  * The application doesn't own a reference to the returned LinphoneCall object.
2411  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2412  *
2413  * @return a LinphoneCall object or NULL in case of failure
2414 **/
2415 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2416 {
2417         const char *route=NULL;
2418         const char *from=NULL;
2419         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2420         LinphoneAddress *parsed_url2=NULL;
2421         char *real_url=NULL;
2422         LinphoneCall *call;
2423         bool_t use_ice = FALSE;
2424
2425         linphone_core_preempt_sound_resources(lc);
2426
2427         if(!linphone_core_can_we_add_call(lc)){
2428                 if (lc->vtable.display_warning)
2429                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2430                 return NULL;
2431         }
2432         linphone_core_get_default_proxy(lc,&proxy);
2433         route=linphone_core_get_route(lc);
2434
2435         real_url=linphone_address_as_string(addr);
2436         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2437
2438         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2439                 ms_message("Overriding default proxy setting for this call:");
2440                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2441         }
2442
2443         if (dest_proxy!=NULL)
2444                 from=linphone_proxy_config_get_identity(dest_proxy);
2445         else if (proxy!=NULL)
2446                 from=linphone_proxy_config_get_identity(proxy);
2447
2448         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2449         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2450
2451         parsed_url2=linphone_address_new(from);
2452
2453         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2454         call->dest_proxy=dest_proxy;
2455         sal_op_set_route(call->op,route);
2456
2457         if(linphone_core_add_call(lc,call)!= 0)
2458         {
2459                 ms_warning("we had a problem in adding the call into the invite ... weird");
2460                 linphone_call_unref(call);
2461                 return NULL;
2462         }
2463         /* this call becomes now the current one*/
2464         lc->current_call=call;
2465         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2466         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2467                 /* Defer the start of the call after the ICE gathering process. */
2468                 linphone_call_init_media_streams(call);
2469                 linphone_call_start_media_streams_for_ice_gathering(call);
2470                 call->start_time=time(NULL);
2471                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2472                         /* Ice candidates gathering failed, proceed with the call anyway. */
2473                         linphone_call_delete_ice_session(call);
2474                         linphone_call_stop_media_streams_for_ice_gathering(call);
2475                 } else {
2476                         use_ice = TRUE;
2477                 }
2478         }
2479
2480         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2481                 /*defer the start of the call after the OPTIONS ping*/
2482                 call->ping_replied=FALSE;
2483                 call->ping_op=sal_op_new(lc->sal);
2484                 sal_ping(call->ping_op,from,real_url);
2485                 sal_op_set_user_pointer(call->ping_op,call);
2486                 call->start_time=time(NULL);
2487         }else{
2488                 if (use_ice==FALSE) linphone_core_start_invite(lc,call);
2489         }
2490
2491         if (real_url!=NULL) ms_free(real_url);
2492         return call;
2493 }
2494
2495 /**
2496  * Performs a simple call transfer to the specified destination.
2497  *
2498  * The remote endpoint is expected to issue a new call to the specified destination.
2499  * The current call remains active and thus can be later paused or terminated.
2500 **/
2501 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2502 {
2503         char *real_url=NULL;
2504         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2505
2506         if (!real_parsed_url){
2507                 /* bad url */
2508                 return -1;
2509         }
2510         if (call==NULL){
2511                 ms_warning("No established call to refer.");
2512                 return -1;
2513         }
2514         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2515         real_url=linphone_address_as_string (real_parsed_url);
2516         sal_call_refer(call->op,real_url);
2517         ms_free(real_url);
2518         linphone_address_destroy(real_parsed_url);
2519         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2520         return 0;
2521 }
2522
2523 /**
2524  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2525  * @param lc linphone core object
2526  * @param call a running call you want to transfer
2527  * @param dest a running call whose remote person will receive the transfer
2528  *
2529  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2530  * The destination call is a call previously established to introduce the transfered person.
2531  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2532  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2533  * close the call with us (the 'dest' call).
2534 **/
2535 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2536         int result = sal_call_refer_with_replaces (call->op,dest->op);
2537         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2538         return result;
2539 }
2540
2541 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2542         LinphoneCall *call = linphone_core_get_current_call(lc);
2543         if(call != NULL)
2544         {
2545                 if(call->dir==LinphoneCallIncoming
2546                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2547                         return TRUE;
2548         }
2549         return FALSE;
2550 }
2551
2552 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2553         char *barmesg;
2554         char *tmp;
2555         LinphoneAddress *from_parsed;
2556         SalMediaDescription *md;
2557         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2558         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2559
2560         linphone_call_make_local_media_description(lc,call);
2561         sal_call_set_local_media_description(call->op,call->localdesc);
2562         md=sal_call_get_final_media_description(call->op);
2563         if (md && sal_media_description_empty(md)){
2564                 sal_call_decline(call->op,SalReasonMedia,NULL);
2565                 linphone_call_unref(call);
2566                 return;
2567         }
2568
2569         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2570         linphone_address_clean(from_parsed);
2571         tmp=linphone_address_as_string(from_parsed);
2572         linphone_address_destroy(from_parsed);
2573         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2574             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2575         if (lc->vtable.show) lc->vtable.show(lc);
2576         if (lc->vtable.display_status)
2577             lc->vtable.display_status(lc,barmesg);
2578
2579         /* play the ring if this is the only call*/
2580         if (ms_list_size(lc->calls)==1){
2581                 lc->current_call=call;
2582                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2583                         ring_stop(lc->ringstream);
2584                         lc->ringstream=NULL;
2585                         lc->dmfs_playing_start_time=0;
2586                 }
2587                 if (lc->sound_conf.ring_sndcard!=NULL){
2588                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2589                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2590                                 ms_message("Starting local ring...");
2591                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2592                         }
2593                         else
2594                         {
2595                                 ms_message("the local ring is already started");
2596                         }
2597                 }
2598         }else{
2599                 /* else play a tone within the context of the current call */
2600                 call->ringing_beep=TRUE;
2601                 linphone_core_play_tone(lc);
2602         }
2603
2604         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2605
2606         if (call->state==LinphoneCallIncomingReceived){
2607                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2608
2609                 if (propose_early_media || ringback_tone!=NULL){
2610                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2611                         md=sal_call_get_final_media_description(call->op);
2612                         linphone_core_update_streams(lc,call,md);
2613                 }
2614                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2615                         linphone_core_accept_call(lc,call);
2616                 }
2617         }
2618         linphone_call_unref(call);
2619
2620         ms_free(barmesg);
2621         ms_free(tmp);
2622 }
2623
2624 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2625         const char *subject;
2626         call->camera_active=call->params.has_video;
2627         if (call->ice_session != NULL)
2628                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2629
2630         if (call->params.in_conference){
2631                 subject="Conference";
2632         }else{
2633                 subject="Media change";
2634         }
2635         if (lc->vtable.display_status)
2636                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2637         sal_call_set_local_media_description (call->op,call->localdesc);
2638         return sal_call_update(call->op,subject);
2639 }
2640
2641 /**
2642  * @ingroup call_control
2643  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2644  *
2645  * In this version this is limited to the following use cases:
2646  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2647  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2648  *
2649  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2650  * @param lc the core
2651  * @param call the call to be updated
2652  * @param params the new call parameters to use. (may be NULL)
2653  * @return 0 if successful, -1 otherwise.
2654 **/
2655 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2656         int err=0;
2657         if (params!=NULL){
2658                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2659 #ifdef VIDEO_ENABLED
2660                 bool_t has_video = call->params.has_video;
2661                 if ((call->ice_session != NULL) && (call->videostream != NULL) && !params->has_video) {
2662                         ice_session_remove_check_list(call->ice_session, call->videostream->ice_check_list);
2663                         call->videostream->ice_check_list = NULL;
2664                 }
2665                 call->params = *params;
2666                 linphone_call_make_local_media_description(lc, call);
2667                 if ((call->ice_session != NULL) && !has_video && call->params.has_video) {
2668                         /* Defer call update until the ICE candidates gathering process has finished. */
2669                         ms_message("Defer call update to gather ICE candidates");
2670                         linphone_call_init_video_stream(call);
2671                         video_stream_prepare_video(call->videostream);
2672                         if (linphone_core_gather_ice_candidates(lc,call)<0) {
2673                                 /* Ice candidates gathering failed, proceed with the call anyway. */
2674                                 linphone_call_delete_ice_session(call);
2675                         } else return err;
2676                 }
2677 #endif
2678                 err = linphone_core_start_update_call(lc, call);
2679         }else{
2680 #ifdef VIDEO_ENABLED
2681                 if (call->videostream!=NULL){
2682                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2683                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2684                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2685                         }else video_stream_update_video_params(call->videostream);
2686                 }
2687 #endif
2688         }
2689
2690         return err;
2691 }
2692
2693 /**
2694  * @ingroup call_control
2695  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2696  *
2697  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2698  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2699  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2700  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2701  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2702  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2703  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2704  *
2705  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2706 **/
2707 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2708         if (call->state==LinphoneCallUpdatedByRemote){
2709                 call->defer_update=TRUE;
2710                 return 0;
2711         }
2712         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2713         return -1;
2714 }
2715
2716 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2717         SalMediaDescription *md;
2718         if (call->ice_session != NULL) {
2719                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2720                         /* Defer the sending of the answer until there are no losing pairs left. */
2721                         return 0;
2722                 }
2723                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2724         }
2725         sal_call_set_local_media_description(call->op,call->localdesc);
2726         sal_call_accept(call->op);
2727         md=sal_call_get_final_media_description(call->op);
2728         if (md && !sal_media_description_empty(md))
2729                 linphone_core_update_streams (lc,call,md);
2730         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2731         return 0;
2732 }
2733
2734 /**
2735  * @ingroup call_control
2736  * Accept call modifications initiated by other end.
2737  *
2738  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2739  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2740  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2741  * requested by the other party, such as whether a video stream is requested.
2742  *
2743  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2744  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2745  * If params is not NULL, then the update will be accepted according to the parameters passed.
2746  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2747  * (see linphone_call_params_enable_video()).
2748  * @param lc the linphone core object.
2749  * @param call the LinphoneCall object
2750  * @param params a LinphoneCallParams object describing the call parameters to accept.
2751  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2752 **/
2753 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2754 #ifdef VIDEO_ENABLED
2755         bool_t old_has_video = call->params.has_video;
2756 #endif
2757         if (call->state!=LinphoneCallUpdatedByRemote){
2758                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2759                          linphone_call_state_to_string(call->state));
2760                 return -1;
2761         }
2762         if (params==NULL){
2763                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2764         }else
2765                 call->params=*params;
2766
2767         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2768                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2769                 call->params.has_video=FALSE;
2770         }
2771         if (call->current_params.in_conference) {
2772                 ms_warning("Video isn't supported in conference");
2773                 call->params.has_video = FALSE;
2774         }
2775         call->params.has_video &= linphone_core_media_description_contains_video_stream(sal_call_get_remote_media_description(call->op));
2776         call->camera_active=call->params.has_video;
2777         linphone_call_make_local_media_description(lc,call);
2778         if (call->ice_session != NULL) {
2779                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2780 #ifdef VIDEO_ENABLED
2781                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2782                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2783                                 linphone_call_init_video_stream(call);
2784                                 video_stream_prepare_video(call->videostream);
2785                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2786                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2787                                         linphone_call_delete_ice_session(call);
2788                                 } else return 0;
2789                         }
2790                 }
2791 #endif
2792         }
2793         linphone_core_start_accept_call_update(lc, call);
2794         return 0;
2795 }
2796
2797 /**
2798  * Accept an incoming call.
2799  *
2800  * @ingroup call_control
2801  * Basically the application is notified of incoming calls within the
2802  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2803  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2804  * The application can later accept the call using this method.
2805  * @param lc the LinphoneCore object
2806  * @param call the LinphoneCall object representing the call to be answered.
2807  *
2808 **/
2809 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
2810         return linphone_core_accept_call_with_params(lc,call,NULL);
2811 }
2812
2813 /**
2814  * Accept an incoming call, with parameters.
2815  *
2816  * @ingroup call_control
2817  * Basically the application is notified of incoming calls within the
2818  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2819  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2820  * The application can later accept the call using
2821  * this method.
2822  * @param lc the LinphoneCore object
2823  * @param call the LinphoneCall object representing the call to be answered.
2824  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
2825  *
2826 **/
2827 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
2828 {
2829         LinphoneProxyConfig *cfg=NULL;
2830         const char *contact=NULL;
2831         SalOp *replaced;
2832         SalMediaDescription *new_md;
2833         bool_t was_ringing=FALSE;
2834
2835         if (call==NULL){
2836                 //if just one call is present answer the only one ...
2837                 if(linphone_core_get_calls_nb (lc) != 1)
2838                         return -1;
2839                 else
2840                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
2841         }
2842
2843         if (call->state==LinphoneCallConnected){
2844                 /*call already accepted*/
2845                 return -1;
2846         }
2847
2848         /* check if this call is supposed to replace an already running one*/
2849         replaced=sal_call_get_replaces(call->op);
2850         if (replaced){
2851                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
2852                 if (rc){
2853                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
2854                                    call,rc);
2855                         linphone_core_terminate_call(lc,rc);
2856                 }
2857         }
2858
2859         if (lc->current_call!=call){
2860                 linphone_core_preempt_sound_resources(lc);
2861         }
2862
2863         /*stop ringing */
2864         if (lc->ringstream!=NULL) {
2865                 ms_message("stop ringing");
2866                 ring_stop(lc->ringstream);
2867                 ms_message("ring stopped");
2868                 lc->ringstream=NULL;
2869                 was_ringing=TRUE;
2870         }
2871         if (call->ringing_beep){
2872                 linphone_core_stop_dtmf(lc);
2873                 call->ringing_beep=FALSE;
2874         }
2875
2876         linphone_core_get_default_proxy(lc,&cfg);
2877         call->dest_proxy=cfg;
2878         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
2879
2880         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
2881                 ms_message("Overriding default proxy setting for this call:");
2882                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
2883         }
2884         /*try to be best-effort in giving real local or routable contact address*/
2885         contact=get_fixed_contact(lc,call,call->dest_proxy);
2886         if (contact)
2887                 sal_op_set_contact(call->op,contact);
2888
2889         if (params){
2890                 const SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
2891                 call->params=*params;
2892                 // There might not be a md if the INVITE was lacking an SDP
2893                 // In this case we use the parameters as is.
2894                 if (md) call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
2895                 call->camera_active=call->params.has_video;
2896                 linphone_call_make_local_media_description(lc,call);
2897                 sal_call_set_local_media_description(call->op,call->localdesc);
2898         }
2899
2900         if (call->audiostream==NULL)
2901                 linphone_call_init_media_streams(call);
2902         if (!was_ringing && call->audiostream->ticker==NULL){
2903                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2904         }
2905
2906         sal_call_accept(call->op);
2907         if (lc->vtable.display_status!=NULL)
2908                 lc->vtable.display_status(lc,_("Connected."));
2909         lc->current_call=call;
2910         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
2911         new_md=sal_call_get_final_media_description(call->op);
2912         linphone_core_update_streams(lc, call, new_md);
2913         if (new_md){
2914                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2915         }else call->media_pending=TRUE;
2916
2917         ms_message("call answered.");
2918         return 0;
2919 }
2920
2921 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
2922         sal_call_terminate(call->op);
2923
2924         /*stop ringing*/
2925         if (lc->ringstream!=NULL) {
2926                 ring_stop(lc->ringstream);
2927                 lc->ringstream=NULL;
2928         }
2929         linphone_call_stop_media_streams(call);
2930         if (lc->vtable.display_status!=NULL)
2931                 lc->vtable.display_status(lc,_("Call aborted") );
2932         linphone_call_set_state(call,LinphoneCallError,error);
2933         return 0;
2934 }
2935
2936 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
2937         if (call->state==LinphoneCallIncomingReceived){
2938                 if (call->reason!=LinphoneReasonNotAnswered)
2939                         call->reason=LinphoneReasonDeclined;
2940         }
2941         /*stop ringing*/
2942         if (lc->ringstream!=NULL) {
2943                 ring_stop(lc->ringstream);
2944                 lc->ringstream=NULL;
2945         }
2946
2947         linphone_call_stop_media_streams(call);
2948         if (lc->vtable.display_status!=NULL)
2949                 lc->vtable.display_status(lc,_("Call ended") );
2950         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2951 }
2952
2953 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
2954         if (call->state==LinphoneCallIncomingReceived){
2955                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
2956                 call->reason=LinphoneReasonDeclined;
2957                 terminate_call(lc,call);
2958         }else{
2959                 ms_error("Bad state for call redirection.");
2960                 return -1;
2961     }
2962         return 0;
2963 }
2964
2965
2966 /**
2967  * Terminates a call.
2968  *
2969  * @ingroup call_control
2970  * @param lc the LinphoneCore
2971  * @param the_call the LinphoneCall object representing the call to be terminated.
2972 **/
2973 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
2974 {
2975         LinphoneCall *call;
2976         if (the_call == NULL){
2977                 call = linphone_core_get_current_call(lc);
2978                 if (ms_list_size(lc->calls)==1){
2979                         call=(LinphoneCall*)lc->calls->data;
2980                 }else{
2981                         ms_warning("No unique call to terminate !");
2982                         return -1;
2983                 }
2984         }
2985         else
2986         {
2987                 call = the_call;
2988         }
2989         sal_call_terminate(call->op);
2990         terminate_call(lc,call);
2991         return 0;
2992 }
2993
2994 /**
2995  * Decline a pending incoming call, with a reason.
2996  * @param lc the linphone core
2997  * @param call the LinphoneCall, must be in the IncomingReceived state.
2998  * @param reason the reason for rejecting the call: LinphoneReasonDeclined or LinphoneReasonBusy
2999 **/
3000 int linphone_core_decline_call(LinphoneCore *lc, LinphoneCall * call, LinphoneReason reason){
3001         SalReason sal_reason=SalReasonUnknown;
3002         if (call->state!=LinphoneCallIncomingReceived && call->state!=LinphoneCallIncomingEarlyMedia){
3003                 ms_error("linphone_core_decline_call(): Cannot decline a call that is in state %s",linphone_call_state_to_string(call->state));
3004                 return -1;
3005         }
3006         switch(reason){
3007                 case LinphoneReasonDeclined:
3008                         sal_reason=SalReasonDeclined;
3009                 break;
3010                 case LinphoneReasonBusy:
3011                         sal_reason=SalReasonBusy;
3012                 break;
3013                 default:
3014                         ms_error("linphone_core_decline_call(): unsupported reason %s",linphone_reason_to_string(reason));
3015                         return -1;
3016                 break;
3017         }
3018         sal_call_decline(call->op,sal_reason,NULL);
3019         terminate_call(lc,call);
3020         return 0;
3021 }
3022
3023 /**
3024  * Terminates all the calls.
3025  *
3026  * @ingroup call_control
3027  * @param lc The LinphoneCore
3028 **/
3029 int linphone_core_terminate_all_calls(LinphoneCore *lc){
3030         MSList *calls=lc->calls;
3031         while(calls) {
3032                 LinphoneCall *c=(LinphoneCall*)calls->data;
3033                 calls=calls->next;
3034                 linphone_core_terminate_call(lc,c);
3035         }
3036         return 0;
3037 }
3038
3039 /**
3040  * Returns the current list of calls.
3041  *
3042  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
3043  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
3044  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
3045  *
3046  * @ingroup call_control
3047 **/
3048 const MSList *linphone_core_get_calls(LinphoneCore *lc)
3049 {
3050         return lc->calls;
3051 }
3052
3053 /**
3054  * Returns TRUE if there is a call running.
3055  *
3056  * @ingroup call_control
3057 **/
3058 bool_t linphone_core_in_call(const LinphoneCore *lc){
3059         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
3060 }
3061
3062 /**
3063  * Returns The _LinphoneCall struct of the current call if one is in call
3064  *
3065  * @ingroup call_control
3066 **/
3067 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
3068 {
3069         return lc->current_call;
3070 }
3071
3072 /**
3073  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
3074  * this file will be played to the remote user.
3075  *
3076  * @ingroup call_control
3077 **/
3078 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
3079 {
3080         const char *subject=NULL;
3081
3082         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
3083                 ms_warning("Cannot pause this call, it is not active.");
3084                 return -1;
3085         }
3086         linphone_call_make_local_media_description(lc,call);
3087         if (call->ice_session != NULL)
3088                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3089         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
3090                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3091                 subject="Call on hold";
3092         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
3093                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3094                 subject="Call on hold for me too";
3095         }else{
3096                 ms_error("No reason to pause this call, it is already paused or inactive.");
3097                 return -1;
3098         }
3099         sal_call_set_local_media_description(call->op,call->localdesc);
3100         if (sal_call_update(call->op,subject) != 0){
3101                 if (lc->vtable.display_warning)
3102                         lc->vtable.display_warning(lc,_("Could not pause the call"));
3103         }
3104         lc->current_call=NULL;
3105         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
3106         if (lc->vtable.display_status)
3107                 lc->vtable.display_status(lc,_("Pausing the current call..."));
3108         if (call->audiostream || call->videostream)
3109                 linphone_call_stop_media_streams (call);
3110         return 0;
3111 }
3112
3113 /**
3114  * Pause all currently running calls.
3115 **/
3116 int linphone_core_pause_all_calls(LinphoneCore *lc){
3117         const MSList *elem;
3118         for(elem=lc->calls;elem!=NULL;elem=elem->next){
3119                 LinphoneCall *call=(LinphoneCall *)elem->data;
3120                 LinphoneCallState cs=linphone_call_get_state(call);
3121                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3122                         linphone_core_pause_call(lc,call);
3123                 }
3124         }
3125         return 0;
3126 }
3127
3128 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3129         LinphoneCall *current_call;
3130         if (linphone_core_is_in_conference(lc)){
3131                 linphone_core_leave_conference(lc);
3132                 return;
3133         }
3134         current_call=linphone_core_get_current_call(lc);
3135         if(current_call != NULL){
3136                 ms_message("Pausing automatically the current call.");
3137                 linphone_core_pause_call(lc,current_call);
3138         }
3139 }
3140
3141 /**
3142  * Resumes the call.
3143  *
3144  * @ingroup call_control
3145 **/
3146 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3147 {
3148         char temp[255]={0};
3149         LinphoneCall *call = the_call;
3150         const char *subject="Call resuming";
3151
3152         if(call->state!=LinphoneCallPaused ){
3153                 ms_warning("we cannot resume a call that has not been established and paused before");
3154                 return -1;
3155         }
3156         if (call->params.in_conference==FALSE){
3157                 linphone_core_preempt_sound_resources(lc);
3158                 ms_message("Resuming call %p",call);
3159         }
3160
3161         /* Stop playing music immediately. If remote side is a conference it
3162          prevents the participants to hear it while the 200OK comes back.*/
3163         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3164
3165         linphone_call_make_local_media_description(lc,the_call);
3166         if (call->ice_session != NULL)
3167                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3168         sal_call_set_local_media_description(call->op,call->localdesc);
3169         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3170         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3171         if(sal_call_update(call->op,subject) != 0){
3172                 return -1;
3173         }
3174         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3175         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3176         if (lc->vtable.display_status)
3177                 lc->vtable.display_status(lc,temp);
3178         return 0;
3179 }
3180
3181 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3182         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3183         return !linphone_address_weak_equal (addr,raddr);
3184 }
3185
3186 /**
3187  * Get the call with the remote_address specified
3188  * @param lc
3189  * @param remote_address
3190  * @return the LinphoneCall of the call if found
3191  */
3192 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3193         LinphoneAddress *raddr=linphone_address_new(remote_address);
3194         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3195         if (elem) return (LinphoneCall*) elem->data;
3196         return NULL;
3197 }
3198
3199 int linphone_core_send_publish(LinphoneCore *lc,
3200                                LinphoneOnlineStatus presence_mode)
3201 {
3202         const MSList *elem;
3203         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3204                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3205                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3206         }
3207         return 0;
3208 }
3209
3210 /**
3211  * Set the incoming call timeout in seconds.
3212  *
3213  * @ingroup call_control
3214  * If an incoming call isn't answered for this timeout period, it is
3215  * automatically declined.
3216 **/
3217 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3218         lc->sip_conf.inc_timeout=seconds;
3219         if (linphone_core_ready(lc)){
3220                 lp_config_set_int(lc->config,"sip","inc_timeout",seconds);
3221         }
3222 }
3223
3224 /**
3225  * Returns the incoming call timeout
3226  *
3227  * @ingroup call_control
3228  * See linphone_core_set_inc_timeout() for details.
3229 **/
3230 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3231         return lc->sip_conf.inc_timeout;
3232 }
3233
3234 /**
3235  * Set the in call timeout in seconds.
3236  *
3237  * @ingroup call_control
3238  * After this timeout period, the call is automatically hangup.
3239 **/
3240 void linphone_core_set_in_call_timeout(LinphoneCore *lc, int seconds){
3241         lc->sip_conf.in_call_timeout=seconds;
3242 }
3243
3244 /**
3245  * Returns the in call timeout
3246  *
3247  * @ingroup call_control
3248  * See linphone_core_set_in_call_timeout() for details.
3249 **/
3250 int linphone_core_get_in_call_timeout(LinphoneCore *lc){
3251         return lc->sip_conf.in_call_timeout;
3252 }
3253
3254 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3255                                                                                                         const char *contact,
3256                                                                                                         LinphoneOnlineStatus presence_mode)
3257 {
3258         if (minutes_away>0) lc->minutes_away=minutes_away;
3259
3260         if (lc->alt_contact!=NULL) {
3261                 ms_free(lc->alt_contact);
3262                 lc->alt_contact=NULL;
3263         }
3264         if (contact) lc->alt_contact=ms_strdup(contact);
3265         if (lc->presence_mode!=presence_mode){
3266                 linphone_core_notify_all_friends(lc,presence_mode);
3267                 /*
3268                    Improve the use of all LINPHONE_STATUS available.
3269                    !TODO Do not mix "presence status" with "answer status code"..
3270                    Use correct parameter to follow sip_if_match/sip_etag.
3271                  */
3272                 linphone_core_send_publish(lc,presence_mode);
3273         }
3274         lc->presence_mode=presence_mode;
3275 }
3276
3277 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3278         return lc->presence_mode;
3279 }
3280
3281 /**
3282  * Get playback sound level in 0-100 scale.
3283  *
3284  * @ingroup media_parameters
3285 **/
3286 int linphone_core_get_play_level(LinphoneCore *lc)
3287 {
3288         return lc->sound_conf.play_lev;
3289 }
3290
3291 /**
3292  * Get ring sound level in 0-100 scale
3293  *
3294  * @ingroup media_parameters
3295 **/
3296 int linphone_core_get_ring_level(LinphoneCore *lc)
3297 {
3298         return lc->sound_conf.ring_lev;
3299 }
3300
3301 /**
3302  * Get sound capture level in 0-100 scale
3303  *
3304  * @ingroup media_parameters
3305 **/
3306 int linphone_core_get_rec_level(LinphoneCore *lc){
3307         return lc->sound_conf.rec_lev;
3308 }
3309
3310 /**
3311  * Set sound ring level in 0-100 scale
3312  *
3313  * @ingroup media_parameters
3314 **/
3315 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3316         MSSndCard *sndcard;
3317         lc->sound_conf.ring_lev=level;
3318         sndcard=lc->sound_conf.ring_sndcard;
3319         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3320 }
3321
3322 /**
3323  * Allow to control microphone level:  gain in db
3324  *
3325  * @ingroup media_parameters
3326 **/
3327 void linphone_core_set_mic_gain_db (LinphoneCore *lc, float gaindb){
3328         float gain=gaindb;
3329         LinphoneCall *call=linphone_core_get_current_call (lc);
3330         AudioStream *st;
3331
3332         lc->sound_conf.soft_mic_lev=gaindb;
3333
3334         if (linphone_core_ready(lc)){
3335                 lp_config_set_float(lc->config,"sound","mic_gain_db",lc->sound_conf.soft_mic_lev);
3336         }
3337
3338         if (call==NULL || (st=call->audiostream)==NULL){
3339                 ms_message("linphone_core_set_mic_gain_db(): no active call.");
3340                 return;
3341         }
3342         if (st->volrecv){
3343                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_DB_GAIN,&gain);
3344         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3345 }
3346
3347 /**
3348  * Get microphone gain in db.
3349  *
3350  * @ingroup media_parameters
3351 **/
3352 float linphone_core_get_mic_gain_db(LinphoneCore *lc) {
3353         return lc->sound_conf.soft_mic_lev;
3354 }
3355
3356 /**
3357  * Allow to control play level before entering sound card:  gain in db
3358  *
3359  * @ingroup media_parameters
3360 **/
3361 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3362         float gain=gaindb;
3363         LinphoneCall *call=linphone_core_get_current_call (lc);
3364         AudioStream *st;
3365
3366         lc->sound_conf.soft_play_lev=gaindb;
3367         if (linphone_core_ready(lc)){
3368                 lp_config_set_float(lc->config,"sound","playback_gain_db",lc->sound_conf.soft_play_lev);
3369         }
3370
3371         if (call==NULL || (st=call->audiostream)==NULL){
3372                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3373                 return;
3374         }
3375         if (st->volrecv){
3376                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3377         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3378 }
3379
3380 /**
3381  * Get playback gain in db before entering  sound card.
3382  *
3383  * @ingroup media_parameters
3384 **/
3385 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3386         return lc->sound_conf.soft_play_lev;
3387 }
3388
3389 /**
3390  * Set sound playback level in 0-100 scale
3391  *
3392  * @ingroup media_parameters
3393 **/
3394 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3395         MSSndCard *sndcard;
3396         lc->sound_conf.play_lev=level;
3397         sndcard=lc->sound_conf.play_sndcard;
3398         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3399 }
3400
3401 /**
3402  * Set sound capture level in 0-100 scale
3403  *
3404  * @ingroup media_parameters
3405 **/
3406 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3407 {
3408         MSSndCard *sndcard;
3409         lc->sound_conf.rec_lev=level;
3410         sndcard=lc->sound_conf.capt_sndcard;
3411         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3412 }
3413
3414 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3415         MSSndCard *sndcard=NULL;
3416         if (devid!=NULL){
3417                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3418                 if (sndcard!=NULL &&
3419                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3420                         ms_warning("%s card does not have the %s capability, ignoring.",
3421                                 devid,
3422                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3423                         sndcard=NULL;
3424                 }
3425         }
3426         if (sndcard==NULL) {
3427                 /* get a card that has read+write capabilities */
3428                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3429                 /* otherwise refine to the first card having the right capability*/
3430                 if (sndcard==NULL){
3431                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3432                         for(;elem!=NULL;elem=elem->next){
3433                                 sndcard=(MSSndCard*)elem->data;
3434                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3435                         }
3436                 }
3437                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3438                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3439                         if (elem) sndcard=(MSSndCard*)elem->data;
3440         }
3441         }
3442         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3443         return sndcard;
3444 }
3445
3446 /**
3447  * Returns true if the specified sound device can capture sound.
3448  *
3449  * @ingroup media_parameters
3450  * @param lc The LinphoneCore object
3451  * @param devid the device name as returned by linphone_core_get_sound_devices()
3452 **/
3453 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3454         MSSndCard *sndcard;
3455         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3456         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3457         return FALSE;
3458 }
3459
3460 /**
3461  * Returns true if the specified sound device can play sound.
3462  *
3463  * @ingroup media_parameters
3464  * @param lc The LinphoneCore object
3465  * @param devid the device name as returned by linphone_core_get_sound_devices()
3466 **/
3467 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3468         MSSndCard *sndcard;
3469         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3470         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3471         return FALSE;
3472 }
3473
3474 /**
3475  * Sets the sound device used for ringing.
3476  *
3477  * @ingroup media_parameters
3478  * @param lc The LinphoneCore object
3479  * @param devid the device name as returned by linphone_core_get_sound_devices()
3480 **/
3481 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3482         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3483         lc->sound_conf.ring_sndcard=card;
3484         if (card && linphone_core_ready(lc))
3485                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3486         return 0;
3487 }
3488
3489 /**
3490  * Sets the sound device used for playback.
3491  *
3492  * @ingroup media_parameters
3493  * @param lc The LinphoneCore object
3494  * @param devid the device name as returned by linphone_core_get_sound_devices()
3495 **/
3496 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3497         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3498         lc->sound_conf.play_sndcard=card;
3499         if (card &&  linphone_core_ready(lc))
3500                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3501         return 0;
3502 }
3503
3504 /**
3505  * Sets the sound device used for capture.
3506  *
3507  * @ingroup media_parameters
3508  * @param lc The LinphoneCore object
3509  * @param devid the device name as returned by linphone_core_get_sound_devices()
3510 **/
3511 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3512         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3513         lc->sound_conf.capt_sndcard=card;
3514         if (card &&  linphone_core_ready(lc))
3515                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3516         return 0;
3517 }
3518
3519 /**
3520  * Returns the name of the currently assigned sound device for ringing.
3521  *
3522  * @ingroup media_parameters
3523  * @param lc The LinphoneCore object
3524 **/
3525 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3526 {
3527         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3528         return NULL;
3529 }
3530
3531 /**
3532  * Returns the name of the currently assigned sound device for playback.
3533  *
3534  * @ingroup media_parameters
3535  * @param lc The LinphoneCore object
3536 **/
3537 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3538 {
3539         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3540 }
3541
3542 /**
3543  * Returns the name of the currently assigned sound device for capture.
3544  *
3545  * @ingroup media_parameters
3546  * @param lc The LinphoneCore object
3547 **/
3548 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3549 {
3550         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3551 }
3552
3553 /**
3554  * Returns an unmodifiable array of available sound devices.
3555  *
3556  * The array is NULL terminated.
3557  *
3558  * @ingroup media_parameters
3559  * @param lc The LinphoneCore object
3560 **/
3561 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3562         return lc->sound_conf.cards;
3563 }
3564
3565 /**
3566  * Returns an unmodifiable array of available video capture devices.
3567  *
3568  * @ingroup media_parameters
3569  * The array is NULL terminated.
3570 **/
3571 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3572         return lc->video_conf.cams;
3573 }
3574
3575 /**
3576  * Update detection of sound devices.
3577  *
3578  * Use this function when the application is notified of USB plug events, so that
3579  * list of available hardwares for sound playback and capture is updated.
3580  **/
3581 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3582         const char *ringer,*playback,*capture;
3583         ringer=linphone_core_get_ringer_device(lc);
3584         playback=linphone_core_get_playback_device(lc);
3585         capture=linphone_core_get_capture_device(lc);
3586         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3587         build_sound_devices_table(lc);
3588         linphone_core_set_ringer_device(lc,ringer);
3589         linphone_core_set_playback_device(lc,playback);
3590         linphone_core_set_capture_device(lc,capture);
3591 }
3592
3593 /**
3594  * Update detection of camera devices.
3595  *
3596  * Use this function when the application is notified of USB plug events, so that
3597  * list of available hardwares for video capture is updated.
3598  **/
3599 void linphone_core_reload_video_devices(LinphoneCore *lc){
3600         const char *devid;
3601         devid=linphone_core_get_video_device(lc);
3602         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3603         build_video_devices_table(lc);
3604         linphone_core_set_video_device(lc,devid);
3605 }
3606
3607 char linphone_core_get_sound_source(LinphoneCore *lc)
3608 {
3609         return lc->sound_conf.source;
3610 }
3611
3612 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3613 {
3614         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3615         lc->sound_conf.source=source;
3616         if (!sndcard) return;
3617         switch(source){
3618                 case 'm':
3619                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3620                         break;
3621                 case 'l':
3622                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3623                         break;
3624         }
3625
3626 }
3627
3628
3629 /**
3630  * Sets the path to a wav file used for ringing.
3631  *
3632  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3633  * @param lc The LinphoneCore object
3634  *
3635  * @ingroup media_parameters
3636 **/
3637 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3638         if (lc->sound_conf.local_ring!=0){
3639                 ms_free(lc->sound_conf.local_ring);
3640                 lc->sound_conf.local_ring=NULL;
3641         }
3642         if (path)
3643                 lc->sound_conf.local_ring=ms_strdup(path);
3644         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3645                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3646 }
3647
3648 /**
3649  * Returns the path to the wav file used for ringing.
3650  *
3651  * @param lc The LinphoneCore object
3652  * @ingroup media_parameters
3653 **/
3654 const char *linphone_core_get_ring(const LinphoneCore *lc){
3655         return lc->sound_conf.local_ring;
3656 }
3657
3658 /**
3659  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3660  *
3661  * @param path
3662  * @param lc The LinphoneCore object
3663  *
3664  * @ingroup media_parameters
3665 **/
3666 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3667         sal_set_root_ca(lc->sal, path);
3668 }
3669
3670 /**
3671  * Gets the path to a file or folder containing trusted root CAs (PEM format)
3672  *
3673  * @param lc The LinphoneCore object
3674  *
3675  * @ingroup media_parameters
3676 **/
3677 const char *linphone_core_get_root_ca(LinphoneCore *lc){
3678         return sal_get_root_ca(lc->sal);
3679 }
3680
3681 /**
3682  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3683 **/
3684 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3685         sal_verify_server_certificates(lc->sal,yesno);
3686 }
3687
3688 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3689         LinphoneCore *lc=(LinphoneCore*)ud;
3690         lc->preview_finished=1;
3691 }
3692
3693 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3694 {
3695         if (lc->ringstream!=0){
3696                 ms_warning("Cannot start ring now,there's already a ring being played");
3697                 return -1;
3698         }
3699         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3700         lc->preview_finished=0;
3701         if (lc->sound_conf.ring_sndcard!=NULL){
3702                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3703                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3704         }
3705         return 0;
3706 }
3707
3708 /**
3709  * Sets the path to a wav file used for ringing back.
3710  *
3711  * Ringback means the ring that is heard when it's ringing at the remote party.
3712  * The file must be a wav 16bit linear.
3713  *
3714  * @ingroup media_parameters
3715 **/
3716 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3717         if (lc->sound_conf.remote_ring!=0){
3718                 ms_free(lc->sound_conf.remote_ring);
3719         }
3720         lc->sound_conf.remote_ring=ms_strdup(path);
3721 }
3722
3723 /**
3724  * Returns the path to the wav file used for ringing back.
3725  *
3726  * @ingroup media_parameters
3727 **/
3728 const char * linphone_core_get_ringback(const LinphoneCore *lc){
3729         return lc->sound_conf.remote_ring;
3730 }
3731
3732 /**
3733  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
3734  *
3735  * @ingroup media_parameters
3736 **/
3737 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
3738         lc->sound_conf.ec=val;
3739         if ( linphone_core_ready(lc))
3740                 lp_config_set_int(lc->config,"sound","echocancellation",val);
3741 }
3742
3743
3744 /**
3745  * Returns TRUE if echo cancellation is enabled.
3746  *
3747  * @ingroup media_parameters
3748 **/
3749 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
3750         return lc->sound_conf.ec;
3751 }
3752
3753 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
3754         lc->sound_conf.ea=val;
3755 }
3756
3757 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
3758         return lc->sound_conf.ea;
3759 }
3760
3761 /**
3762  * Mutes or unmutes the local microphone.
3763  *
3764  * @ingroup media_parameters
3765 **/
3766 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
3767         LinphoneCall *call=linphone_core_get_current_call(lc);
3768         AudioStream *st=NULL;
3769         if (linphone_core_is_in_conference(lc)){
3770                 lc->conf_ctx.local_muted=val;
3771                 st=lc->conf_ctx.local_participant;
3772         }else if (call==NULL){
3773                 ms_warning("linphone_core_mute_mic(): No current call !");
3774                 return;
3775         }else{
3776                 st=call->audiostream;
3777                 call->audio_muted=val;
3778         }
3779         if (st!=NULL){
3780                 audio_stream_set_mic_gain(st,
3781                         (val==TRUE) ? 0 : pow(10,lc->sound_conf.soft_mic_lev/10));
3782                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
3783                         audio_stream_mute_rtp(st,val);
3784                 }
3785
3786         }
3787 }
3788 /**
3789  * Returns whether microphone is muted.
3790 **/
3791 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
3792         LinphoneCall *call=linphone_core_get_current_call(lc);
3793         if (linphone_core_is_in_conference(lc)){
3794                 return lc->conf_ctx.local_muted;
3795         }else if (call==NULL){
3796                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3797                 return FALSE;
3798         }
3799         return call->audio_muted;
3800 }
3801
3802 // returns rtp transmission status for an active stream
3803 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
3804 // was set on then rtp transmission is also muted
3805 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
3806         LinphoneCall *call=linphone_core_get_current_call(lc);
3807         if (call==NULL){
3808                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3809                 return FALSE;
3810         }
3811         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
3812                 return call->audio_muted;
3813         }
3814         return FALSE;
3815 }
3816
3817 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
3818         lc->sound_conf.agc=val;
3819 }
3820
3821 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
3822         return lc->sound_conf.agc;
3823 }
3824
3825 /**
3826  * Send the specified dtmf.
3827  *
3828  * @ingroup media_parameters
3829  * This function only works during calls. The dtmf is automatically played to the user.
3830  * @param lc The LinphoneCore object
3831  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
3832  *
3833 **/
3834 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
3835 {
3836         LinphoneCall *call=linphone_core_get_current_call(lc);
3837         if (call==NULL){
3838                 ms_warning("linphone_core_send_dtmf(): no active call");
3839                 return;
3840         }
3841         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
3842         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
3843         {
3844                 /* In Band DTMF */
3845                 if (call->audiostream!=NULL){
3846                         audio_stream_send_dtmf(call->audiostream,dtmf);
3847                 }
3848                 else
3849                 {
3850                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
3851                 }
3852         }
3853         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
3854                 /* Out of Band DTMF (use INFO method) */
3855                 sal_call_send_dtmf(call->op,dtmf);
3856         }
3857 }
3858
3859 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
3860         if (lc->net_conf.stun_server!=NULL)
3861                 ms_free(lc->net_conf.stun_server);
3862         if (server)
3863                 lc->net_conf.stun_server=ms_strdup(server);
3864         else lc->net_conf.stun_server=NULL;
3865         if (linphone_core_ready(lc))
3866                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
3867 }
3868
3869 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
3870         return lc->net_conf.stun_server;
3871 }
3872
3873 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
3874         return lc->net_conf.relay;
3875 }
3876
3877 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
3878         if (lc->net_conf.relay!=NULL){
3879                 ms_free(lc->net_conf.relay);
3880                 lc->net_conf.relay=NULL;
3881         }
3882         if (addr){
3883                 lc->net_conf.relay=ms_strdup(addr);
3884         }
3885         return 0;
3886 }
3887
3888 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
3889 {
3890         if (lc->net_conf.nat_address!=NULL){
3891                 ms_free(lc->net_conf.nat_address);
3892         }
3893         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
3894         else lc->net_conf.nat_address=NULL;
3895         if (lc->sip_conf.contact) update_primary_contact(lc);
3896 }
3897
3898 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
3899         return lc->net_conf.nat_address;
3900 }
3901
3902 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
3903 {
3904         struct sockaddr_storage ss;
3905         socklen_t ss_len;
3906         int error;
3907         char ipstring [INET6_ADDRSTRLEN];
3908
3909         if (lc->net_conf.nat_address==NULL) return NULL;
3910
3911         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
3912                 return lc->net_conf.nat_address;
3913         }
3914
3915         error = getnameinfo((struct sockaddr *)&ss, ss_len,
3916                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
3917         if (error) {
3918                 return lc->net_conf.nat_address;
3919         }
3920
3921         if (lc->net_conf.nat_address_ip!=NULL){
3922                 ms_free(lc->net_conf.nat_address_ip);
3923         }
3924         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
3925         return lc->net_conf.nat_address_ip;
3926 }
3927
3928 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
3929         lc->net_conf.firewall_policy=pol;
3930         if (lc->sip_conf.contact) update_primary_contact(lc);
3931         if (linphone_core_ready(lc))
3932                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
3933 }
3934
3935 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
3936         return lc->net_conf.firewall_policy;
3937 }
3938
3939 /**
3940  * Get the list of call logs (past calls).
3941  *
3942  * @ingroup call_logs
3943 **/
3944 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
3945         return lc->call_logs;
3946 }
3947
3948 /**
3949  * Erase the call log.
3950  *
3951  * @ingroup call_logs
3952 **/
3953 void linphone_core_clear_call_logs(LinphoneCore *lc){
3954         lc->missed_calls=0;
3955         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
3956         lc->call_logs=ms_list_free(lc->call_logs);
3957         call_logs_write_to_config_file(lc);
3958 }
3959
3960 /**
3961  * Returns number of missed calls.
3962  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
3963 **/
3964 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
3965         return lc->missed_calls;
3966 }
3967
3968 /**
3969  * Resets the counter of missed calls.
3970 **/
3971 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
3972         lc->missed_calls=0;
3973 }
3974
3975 /**
3976  * Remove a specific call log from call history list.
3977  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
3978  * @param lc the linphone core object
3979  * @param a LinphoneCallLog object.
3980 **/
3981 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
3982         lc->call_logs = ms_list_remove(lc->call_logs, cl);
3983         call_logs_write_to_config_file(lc);
3984         linphone_call_log_destroy(cl);
3985 }
3986
3987 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
3988 #ifdef VIDEO_ENABLED
3989         if (val){
3990                 if (lc->previewstream==NULL){
3991                         lc->previewstream=video_preview_new();
3992                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
3993                         if (lc->video_conf.displaytype)
3994                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
3995                         if (lc->preview_window_id!=0)
3996                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
3997                         video_preview_start(lc->previewstream,lc->video_conf.device);
3998                 }
3999         }else{
4000                 if (lc->previewstream!=NULL){
4001                         video_preview_stop(lc->previewstream);
4002                         lc->previewstream=NULL;
4003                 }
4004         }
4005 #endif
4006 }
4007
4008 /**
4009  * Enables video globally.
4010  *
4011  * @ingroup media_parameters
4012  * This function does not have any effect during calls. It just indicates LinphoneCore to
4013  * initiate future calls with video or not. The two boolean parameters indicate in which
4014  * direction video is enabled. Setting both to false disables video entirely.
4015  *
4016  * @param lc The LinphoneCore object
4017  * @param vcap_enabled indicates whether video capture is enabled
4018  * @param display_enabled indicates whether video display should be shown
4019  *
4020 **/
4021 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
4022 #ifndef VIDEO_ENABLED
4023         if (vcap_enabled || display_enabled)
4024                 ms_warning("This version of linphone was built without video support.");
4025 #endif
4026         lc->video_conf.capture=vcap_enabled;
4027         lc->video_conf.display=display_enabled;
4028         if (linphone_core_ready(lc)){
4029                 lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4030                 lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4031         }
4032         /* need to re-apply network bandwidth settings*/
4033         linphone_core_set_download_bandwidth(lc,
4034                 linphone_core_get_download_bandwidth(lc));
4035         linphone_core_set_upload_bandwidth(lc,
4036                 linphone_core_get_upload_bandwidth(lc));
4037 }
4038
4039 bool_t linphone_core_video_supported(LinphoneCore *lc){
4040 #ifdef VIDEO_ENABLED
4041         return TRUE;
4042 #else
4043         return FALSE;
4044 #endif
4045 }
4046
4047 /**
4048  * Returns TRUE if video is enabled, FALSE otherwise.
4049  * @ingroup media_parameters
4050 **/
4051 bool_t linphone_core_video_enabled(LinphoneCore *lc){
4052         return (lc->video_conf.display || lc->video_conf.capture);
4053 }
4054
4055 /**
4056  * Sets the default policy for video.
4057  * This policy defines whether:
4058  * - video shall be initiated by default for outgoing calls
4059  * - video shall be accepter by default for incoming calls
4060  * @ingroup media_parameters
4061 **/
4062 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
4063         lc->video_policy=*policy;
4064         if (linphone_core_ready(lc)){
4065                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
4066                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
4067         }
4068 }
4069
4070 /**
4071  * Get the default policy for video.
4072  * See linphone_core_set_video_policy() for more details.
4073  * @ingroup media_parameters
4074 **/
4075 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
4076         return &lc->video_policy;
4077 }
4078
4079 /**
4080  * Controls video preview enablement.
4081  *
4082  * @ingroup media_parameters
4083  * Video preview refers to the action of displaying the local webcam image
4084  * to the user while not in call.
4085 **/
4086 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
4087         lc->video_conf.show_local=val;
4088         if (linphone_core_ready(lc))
4089                 lp_config_set_int(lc->config,"video","show_local",val);
4090 }
4091
4092 /**
4093  * Returns TRUE if video previewing is enabled.
4094  * @ingroup media_parameters
4095 **/
4096 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
4097         return lc->video_conf.show_local;
4098 }
4099
4100 /**
4101  * Enables or disable self view during calls.
4102  *
4103  * @ingroup media_parameters
4104  * Self-view refers to having local webcam image inserted in corner
4105  * of the video window during calls.
4106  * This function works at any time, including during calls.
4107 **/
4108 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
4109 #ifdef VIDEO_ENABLED
4110         LinphoneCall *call=linphone_core_get_current_call (lc);
4111         lc->video_conf.selfview=val;
4112         if (call && call->videostream){
4113                 video_stream_enable_self_view(call->videostream,val);
4114         }
4115         if (linphone_core_ready(lc)){
4116                 lp_config_set_int(lc->config,"video","self_view",val);
4117         }
4118 #endif
4119 }
4120
4121 /**
4122  * Returns TRUE if self-view is enabled, FALSE otherwise.
4123  *
4124  * @ingroup media_parameters
4125  *
4126  * Refer to linphone_core_enable_self_view() for details.
4127 **/
4128 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
4129         return lc->video_conf.selfview;
4130 }
4131
4132 /**
4133  * Sets the active video device.
4134  *
4135  * @ingroup media_parameters
4136  * @param lc The LinphoneCore object
4137  * @param id the name of the video device as returned by linphone_core_get_video_devices()
4138 **/
4139 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
4140         MSWebCam *olddev=lc->video_conf.device;
4141         const char *vd;
4142         if (id!=NULL){
4143                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
4144                 if (lc->video_conf.device==NULL){
4145                         ms_warning("Could not find video device %s",id);
4146                 }
4147         }
4148         if (lc->video_conf.device==NULL)
4149                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
4150         if (olddev!=NULL && olddev!=lc->video_conf.device){
4151                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
4152         }
4153         if ( linphone_core_ready(lc) && lc->video_conf.device){
4154                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
4155                 if (vd && strstr(vd,"Static picture")!=NULL){
4156                         vd=NULL;
4157                 }
4158                 lp_config_set_string(lc->config,"video","device",vd);
4159         }
4160         return 0;
4161 }
4162
4163 /**
4164  * Returns the name of the currently active video device.
4165  *
4166  * @param lc The LinphoneCore object
4167  * @ingroup media_parameters
4168 **/
4169 const char *linphone_core_get_video_device(const LinphoneCore *lc){
4170         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
4171         return NULL;
4172 }
4173
4174 #ifdef VIDEO_ENABLED
4175 static VideoStream * get_active_video_stream(LinphoneCore *lc){
4176         VideoStream *vs = NULL;
4177         LinphoneCall *call=linphone_core_get_current_call (lc);
4178         /* Select the video stream from the call in the first place */
4179         if (call && call->videostream) {
4180                 vs = call->videostream;
4181         }
4182         /* If not in call, select the video stream from the preview */
4183         if (vs == NULL && lc->previewstream) {
4184                 vs = lc->previewstream;
4185         }
4186         return vs;
4187 }
4188 #endif
4189
4190 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
4191 #ifdef VIDEO_ENABLED
4192         VideoStream *vs=get_active_video_stream(lc);
4193         /* If we have a video stream (either preview, either from call), we
4194                  have a source and it is using the static picture filter, then
4195                  force the filter to use that picture. */
4196         if (vs && vs->source) {
4197                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4198                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4199                                                                                                                 (void *)path);
4200                 }
4201         }
4202         /* Tell the static image filter to use that image from now on so
4203                  that the image will be used next time it has to be read */
4204         ms_static_image_set_default_image(path);
4205 #else
4206         ms_warning("Video support not compiled.");
4207 #endif
4208         return 0;
4209 }
4210
4211 const char *linphone_core_get_static_picture(LinphoneCore *lc) {
4212         const char *path=NULL;
4213 #ifdef VIDEO_ENABLED
4214         path=ms_static_image_get_default_image();
4215 #else
4216         ms_warning("Video support not compiled.");
4217 #endif
4218         return path;
4219 }
4220
4221 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4222 #ifdef VIDEO_ENABLED
4223         VideoStream *vs = NULL;
4224
4225         vs=get_active_video_stream(lc);
4226
4227         /* If we have a video stream (either preview, either from call), we
4228                  have a source and it is using the static picture filter, then
4229                  force the filter to use that picture. */
4230         if (vs && vs->source) {
4231                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4232                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4233                 }
4234         }
4235 #else
4236         ms_warning("Video support not compiled.");
4237 #endif
4238         return 0;
4239 }
4240
4241 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4242 #ifdef VIDEO_ENABLED
4243         VideoStream *vs = NULL;
4244         vs=get_active_video_stream(lc);
4245         /* If we have a video stream (either preview, either from call), we
4246                  have a source and it is using the static picture filter, then
4247                  force the filter to use that picture. */
4248         if (vs && vs->source) {
4249                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4250
4251                         float fps;
4252
4253                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4254                         return fps;
4255                 }
4256         }
4257 #else
4258         ms_warning("Video support not compiled.");
4259 #endif
4260         return 0;
4261 }
4262
4263 /**
4264  * Returns the native window handle of the video window, casted as an unsigned long.
4265  *
4266  * @ingroup media_parameters
4267 **/
4268 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4269 #ifdef VIDEO_ENABLED
4270         LinphoneCall *call=linphone_core_get_current_call (lc);
4271         if (call && call->videostream)
4272                 return video_stream_get_native_window_id(call->videostream);
4273         if (lc->previewstream)
4274                 return video_stream_get_native_window_id(lc->previewstream);
4275 #endif
4276         return lc->video_window_id;
4277 }
4278
4279 /**@ingroup media_parameters
4280  * Set the native video window id where the video is to be displayed.
4281  * If not set the core will create its own window.
4282 **/
4283 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4284 #ifdef VIDEO_ENABLED
4285         LinphoneCall *call=linphone_core_get_current_call(lc);
4286         lc->video_window_id=id;
4287         if (call!=NULL && call->videostream){
4288                 video_stream_set_native_window_id(call->videostream,id);
4289         }
4290 #endif
4291 }
4292
4293 /**
4294  * Returns the native window handle of the video preview window, casted as an unsigned long.
4295  *
4296  * @ingroup media_parameters
4297 **/
4298 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4299 #ifdef VIDEO_ENABLED
4300         LinphoneCall *call=linphone_core_get_current_call (lc);
4301         if (call && call->videostream)
4302                 return video_stream_get_native_preview_window_id(call->videostream);
4303         if (lc->previewstream)
4304                 return video_preview_get_native_window_id(lc->previewstream);
4305 #endif
4306         return lc->preview_window_id;
4307 }
4308
4309 /**
4310  * @ingroup media_parameters
4311  * Set the native window id where the preview video (local camera) is to be displayed.
4312  * This has to be used in conjonction with linphone_core_use_preview_window().
4313  * If not set the core will create its own window.
4314 **/
4315 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4316         lc->preview_window_id=id;
4317 #ifdef VIDEO_ENABLED
4318         LinphoneCall *call=linphone_core_get_current_call(lc);
4319         if (call!=NULL && call->videostream){
4320                 video_stream_set_native_preview_window_id(call->videostream,id);
4321         }else if (lc->previewstream){
4322                 video_preview_set_native_window_id(lc->previewstream,id);
4323         }
4324 #endif
4325 }
4326
4327 /**
4328  * Can be used to disable video showing to free XV port
4329 **/
4330 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4331 #ifdef VIDEO_ENABLED
4332         ms_error("linphone_core_show_video %d", show);
4333         LinphoneCall *call=linphone_core_get_current_call(lc);
4334         if (call!=NULL && call->videostream){
4335                 video_stream_show_video(call->videostream,show);
4336         }
4337 #endif
4338 }
4339
4340 /**
4341  * Tells the core to use a separate window for local camera preview video, instead of
4342  * inserting local view within the remote video window.
4343  *
4344 **/
4345 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4346         lc->use_preview_window=yesno;
4347 }
4348 /**
4349  * @ingroup media_parameters
4350  *returns current device orientation
4351  */
4352 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4353         return lc->device_rotation;
4354 }
4355 /**
4356  * @ingroup media_parameters
4357  * Tells the core the device current orientation. This can be used by capture filters
4358  * on mobile devices to select between portrait/landscape mode and to produce properly
4359  * oriented images. The exact meaning of the value in rotation if left to each device
4360  * specific implementations.
4361  *@param lc  object.
4362  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4363  *
4364 **/
4365 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4366 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4367         lc->device_rotation = rotation;
4368 #ifdef VIDEO_ENABLED
4369         LinphoneCall *call=linphone_core_get_current_call(lc);
4370         if (call!=NULL && call->videostream){
4371                 video_stream_set_device_rotation(call->videostream,rotation);
4372         }
4373 #endif
4374 }
4375
4376 static MSVideoSizeDef supported_resolutions[]={
4377 #ifdef ENABLE_HD
4378         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4379         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4380 #endif
4381         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4382         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4383         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4384         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4385         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4386         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4387         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4388         {       {0,0}                   ,       NULL    }
4389 };
4390
4391 /**
4392  * Returns the zero terminated table of supported video resolutions.
4393  *
4394  * @ingroup media_parameters
4395 **/
4396 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4397         return supported_resolutions;
4398 }
4399
4400 static MSVideoSize video_size_get_by_name(const char *name){
4401         MSVideoSizeDef *pdef=supported_resolutions;
4402         MSVideoSize null_vsize={0,0};
4403         for(;pdef->name!=NULL;pdef++){
4404                 if (strcasecmp(name,pdef->name)==0){
4405                         return pdef->vsize;
4406                 }
4407         }
4408         ms_warning("Video resolution %s is not supported in linphone.",name);
4409         return null_vsize;
4410 }
4411
4412 static const char *video_size_get_name(MSVideoSize vsize){
4413         MSVideoSizeDef *pdef=supported_resolutions;
4414         for(;pdef->name!=NULL;pdef++){
4415                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4416                         return pdef->name;
4417                 }
4418         }
4419         return NULL;
4420 }
4421
4422 static bool_t video_size_supported(MSVideoSize vsize){
4423         if (video_size_get_name(vsize)) return TRUE;
4424         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4425         return FALSE;
4426 }
4427
4428 /**
4429  * Sets the preferred video size.
4430  *
4431  * @ingroup media_parameters
4432  * This applies only to the stream that is captured and sent to the remote party,
4433  * since we accept all standard video size on the receive path.
4434 **/
4435 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4436         if (video_size_supported(vsize)){
4437                 MSVideoSize oldvsize=lc->video_conf.vsize;
4438                 lc->video_conf.vsize=vsize;
4439                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4440                         toggle_video_preview(lc,FALSE);
4441                         toggle_video_preview(lc,TRUE);
4442                 }
4443                 if ( linphone_core_ready(lc))
4444                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4445         }
4446 }
4447
4448 /**
4449  * Sets the preferred video size by its name.
4450  *
4451  * @ingroup media_parameters
4452  * This is identical to linphone_core_set_preferred_video_size() except
4453  * that it takes the name of the video resolution as input.
4454  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4455 **/
4456 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4457         MSVideoSize vsize=video_size_get_by_name(name);
4458         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4459         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4460         else linphone_core_set_preferred_video_size(lc,default_vsize);
4461 }
4462
4463 /**
4464  * Returns the current preferred video size for sending.
4465  *
4466  * @ingroup media_parameters
4467 **/
4468 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4469         return lc->video_conf.vsize;
4470 }
4471
4472 /**
4473  * Ask the core to stream audio from and to files, instead of using the soundcard.
4474 **/
4475 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4476         lc->use_files=yesno;
4477 }
4478
4479 /**
4480  * Sets a wav file to be played when putting somebody on hold,
4481  * or when files are used instead of soundcards (see linphone_core_use_files()).
4482  *
4483  * The file must be a 16 bit linear wav file.
4484 **/
4485 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4486         LinphoneCall *call=linphone_core_get_current_call(lc);
4487         if (lc->play_file!=NULL){
4488                 ms_free(lc->play_file);
4489                 lc->play_file=NULL;
4490         }
4491         if (file!=NULL) {
4492                 lc->play_file=ms_strdup(file);
4493                 if (call && call->audiostream && call->audiostream->ticker)
4494                         audio_stream_play(call->audiostream,file);
4495         }
4496 }
4497
4498
4499 /**
4500  * Sets a wav file where incoming stream is to be recorded,
4501  * when files are used instead of soundcards (see linphone_core_use_files()).
4502  *
4503  * The file must be a 16 bit linear wav file.
4504 **/
4505 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4506         LinphoneCall *call=linphone_core_get_current_call(lc);
4507         if (lc->rec_file!=NULL){
4508                 ms_free(lc->rec_file);
4509                 lc->rec_file=NULL;
4510         }
4511         if (file!=NULL) {
4512                 lc->rec_file=ms_strdup(file);
4513                 if (call && call->audiostream)
4514                         audio_stream_record(call->audiostream,file);
4515         }
4516 }
4517
4518
4519 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4520         LinphoneCall *call=linphone_core_get_current_call (lc);
4521         AudioStream *stream=NULL;
4522         if (call){
4523                 stream=call->audiostream;
4524         }else if (linphone_core_is_in_conference(lc)){
4525                 stream=lc->conf_ctx.local_participant;
4526         }
4527         if (stream){
4528                 return stream->dtmfgen;
4529         }
4530         if (lc->ringstream==NULL){
4531                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4532                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4533                 if (ringcard == NULL)
4534                         return NULL;
4535
4536                 lc->ringstream=ring_start(NULL,0,ringcard);
4537                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4538                 lc->dmfs_playing_start_time=time(NULL);
4539         }else{
4540                 if (lc->dmfs_playing_start_time!=0)
4541                         lc->dmfs_playing_start_time=time(NULL);
4542         }
4543         return lc->ringstream->gendtmf;
4544 }
4545
4546 /**
4547  * @ingroup media_parameters
4548  * Plays a dtmf sound to the local user.
4549  * @param lc #LinphoneCore
4550  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4551  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4552 **/
4553 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4554         MSFilter *f=get_dtmf_gen(lc);
4555         if (f==NULL){
4556                 ms_error("No dtmf generator at this time !");
4557                 return;
4558         }
4559
4560         if (duration_ms>0)
4561                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4562         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4563 }
4564
4565 /**
4566  * @ingroup media_parameters
4567  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4568  * @param lc #LinphoneCore
4569 **/
4570 void linphone_core_play_tone(LinphoneCore *lc){
4571         MSFilter *f=get_dtmf_gen(lc);
4572         MSDtmfGenCustomTone def;
4573         if (f==NULL){
4574                 ms_error("No dtmf generator at this time !");
4575                 return;
4576         }
4577         def.duration=300;
4578         def.frequency=500;
4579         def.amplitude=1;
4580         def.interval=2000;
4581         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4582 }
4583
4584 /**
4585  * @ingroup media_parameters
4586  *
4587  * Stops playing a dtmf started by linphone_core_play_dtmf().
4588 **/
4589 void linphone_core_stop_dtmf(LinphoneCore *lc){
4590         MSFilter *f=get_dtmf_gen(lc);
4591         if (f!=NULL)
4592                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4593 }
4594
4595
4596
4597 /**
4598  * Retrieves the user pointer that was given to linphone_core_new()
4599  *
4600  * @ingroup initializing
4601 **/
4602 void *linphone_core_get_user_data(LinphoneCore *lc){
4603         return lc->data;
4604 }
4605
4606 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4607         lc->data=userdata;
4608 }
4609
4610 int linphone_core_get_mtu(const LinphoneCore *lc){
4611         return lc->net_conf.mtu;
4612 }
4613
4614 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4615         lc->net_conf.mtu=mtu;
4616         if (mtu>0){
4617                 if (mtu<500){
4618                         ms_error("MTU too small !");
4619                         mtu=500;
4620                 }
4621                 ms_set_mtu(mtu);
4622                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4623         }else ms_set_mtu(0);//use mediastreamer2 default value
4624 }
4625
4626 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4627         lc->wait_cb=cb;
4628         lc->wait_ctx=user_context;
4629 }
4630
4631 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4632         if (lc->wait_cb){
4633                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4634         }
4635 }
4636
4637 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4638         if (lc->wait_cb){
4639                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4640         }else{
4641 #ifdef WIN32
4642                 Sleep(50000);
4643 #else
4644                 usleep(50000);
4645 #endif
4646         }
4647 }
4648
4649 void linphone_core_stop_waiting(LinphoneCore *lc){
4650         if (lc->wait_cb){
4651                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4652         }
4653 }
4654
4655 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4656         lc->rtptf=factories;
4657 }
4658
4659 /**
4660  * Retrieve RTP statistics regarding current call.
4661  * @param local RTP statistics computed locally.
4662  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4663  *
4664  * @note Remote RTP statistics is not implemented yet.
4665  *
4666  * @returns 0 or -1 if no call is running.
4667 **/
4668
4669 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
4670         LinphoneCall *call=linphone_core_get_current_call (lc);
4671         if (call!=NULL){
4672                 if (call->audiostream!=NULL){
4673                         memset(remote,0,sizeof(*remote));
4674                         audio_stream_get_local_rtp_stats (call->audiostream,local);
4675                         return 0;
4676                 }
4677         }
4678         return -1;
4679 }
4680
4681 void net_config_uninit(LinphoneCore *lc)
4682 {
4683         net_config_t *config=&lc->net_conf;
4684
4685         if (config->stun_server!=NULL){
4686                 ms_free(lc->net_conf.stun_server);
4687         }
4688         if (config->nat_address!=NULL){
4689                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
4690                 ms_free(lc->net_conf.nat_address);
4691         }
4692         if (lc->net_conf.nat_address_ip !=NULL){
4693                 ms_free(lc->net_conf.nat_address_ip);
4694         }
4695         lp_config_set_int(lc->config,"net","mtu",config->mtu);
4696 }
4697
4698
4699 void sip_config_uninit(LinphoneCore *lc)
4700 {
4701         MSList *elem;
4702         int i;
4703         sip_config_t *config=&lc->sip_conf;
4704
4705         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
4706         lp_config_set_string(lc->config,"sip","contact",config->contact);
4707         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
4708         lp_config_set_int(lc->config,"sip","in_call_timeout",config->in_call_timeout);
4709         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
4710         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
4711         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
4712         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
4713
4714
4715
4716
4717         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
4718                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
4719                 linphone_proxy_config_edit(cfg);        /* to unregister */
4720         }
4721
4722         for (i=0;i<20;i++){
4723                 sal_iterate(lc->sal);
4724 #ifndef WIN32
4725                 usleep(100000);
4726 #else
4727                 Sleep(100);
4728 #endif
4729         }
4730
4731         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
4732         ms_list_free(config->proxies);
4733         config->proxies=NULL;
4734
4735         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
4736
4737         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
4738         ms_list_free(lc->auth_info);
4739         lc->auth_info=NULL;
4740
4741         sal_uninit(lc->sal);
4742         lc->sal=NULL;
4743
4744         if (lc->sip_conf.guessed_contact)
4745                 ms_free(lc->sip_conf.guessed_contact);
4746         if (config->contact)
4747                 ms_free(config->contact);
4748
4749 }
4750
4751 void rtp_config_uninit(LinphoneCore *lc)
4752 {
4753         rtp_config_t *config=&lc->rtp_conf;
4754         if (config->audio_rtp_min_port == config->audio_rtp_max_port) {
4755                 lp_config_set_int(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port);
4756         } else {
4757                 lp_config_set_range(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port, config->audio_rtp_max_port);
4758         }
4759         if (config->video_rtp_min_port == config->video_rtp_max_port) {
4760                 lp_config_set_int(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port);
4761         } else {
4762                 lp_config_set_range(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port, config->video_rtp_max_port);
4763         }
4764         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
4765         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
4766         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
4767         lp_config_set_int(lc->config,"rtp","audio_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
4768         lp_config_set_int(lc->config,"rtp","video_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
4769 }
4770
4771 static void sound_config_uninit(LinphoneCore *lc)
4772 {
4773         sound_config_t *config=&lc->sound_conf;
4774         ms_free(config->cards);
4775
4776         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
4777         lp_config_set_float(lc->config,"sound","playback_gain_db",config->soft_play_lev);
4778         lp_config_set_float(lc->config,"sound","mic_gain_db",config->soft_mic_lev);
4779
4780         if (config->local_ring) ms_free(config->local_ring);
4781         if (config->remote_ring) ms_free(config->remote_ring);
4782         ms_snd_card_manager_destroy();
4783 }
4784
4785 static void video_config_uninit(LinphoneCore *lc)
4786 {
4787         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
4788         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4789         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4790         if (lc->video_conf.cams)
4791                 ms_free(lc->video_conf.cams);
4792 }
4793
4794 void _linphone_core_codec_config_write(LinphoneCore *lc){
4795         if (linphone_core_ready(lc)){
4796                 PayloadType *pt;
4797                 codecs_config_t *config=&lc->codecs_conf;
4798                 MSList *node;
4799                 char key[50];
4800                 int index;
4801                 index=0;
4802                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
4803                         pt=(PayloadType*)(node->data);
4804                         sprintf(key,"audio_codec_%i",index);
4805                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4806                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4807                         lp_config_set_int(lc->config,key,"channels",pt->channels);
4808                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4809                         index++;
4810                 }
4811                 sprintf(key,"audio_codec_%i",index);
4812                 lp_config_clean_section (lc->config,key);
4813
4814                 index=0;
4815                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
4816                         pt=(PayloadType*)(node->data);
4817                         sprintf(key,"video_codec_%i",index);
4818                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4819                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4820                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4821                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
4822                         index++;
4823                 }
4824                 sprintf(key,"video_codec_%i",index);
4825                 lp_config_clean_section (lc->config,key);
4826         }
4827 }
4828
4829 static void codecs_config_uninit(LinphoneCore *lc)
4830 {
4831         _linphone_core_codec_config_write(lc);
4832         ms_list_free(lc->codecs_conf.audio_codecs);
4833         ms_list_free(lc->codecs_conf.video_codecs);
4834 }
4835
4836 void ui_config_uninit(LinphoneCore* lc)
4837 {
4838         if (lc->friends){
4839                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
4840                 ms_list_free(lc->friends);
4841                 lc->friends=NULL;
4842         }
4843 }
4844
4845 /**
4846  * Returns the LpConfig object used to manage the storage (config) file.
4847  *
4848  * @ingroup misc
4849  * The application can use the LpConfig object to insert its own private
4850  * sections and pairs of key=value in the configuration file.
4851  *
4852 **/
4853 LpConfig *linphone_core_get_config(LinphoneCore *lc){
4854         return lc->config;
4855 }
4856
4857 static void linphone_core_uninit(LinphoneCore *lc)
4858 {
4859         linphone_core_free_hooks(lc);
4860         while(lc->calls)
4861         {
4862                 LinphoneCall *the_call = lc->calls->data;
4863                 linphone_core_terminate_call(lc,the_call);
4864                 linphone_core_iterate(lc);
4865 #ifdef WIN32
4866                 Sleep(50000);
4867 #else
4868                 usleep(50000);
4869 #endif
4870         }
4871         if (lc->friends)
4872                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
4873         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
4874 #ifdef VIDEO_ENABLED
4875         if (lc->previewstream!=NULL){
4876                 video_preview_stop(lc->previewstream);
4877                 lc->previewstream=NULL;
4878         }
4879 #endif
4880         ms_event_queue_destroy(lc->msevq);
4881         lc->msevq=NULL;
4882         /* save all config */
4883         net_config_uninit(lc);
4884         rtp_config_uninit(lc);
4885         if (lc->ringstream) ring_stop(lc->ringstream);
4886         sound_config_uninit(lc);
4887         video_config_uninit(lc);
4888         codecs_config_uninit(lc);
4889         ui_config_uninit(lc);
4890         sip_config_uninit(lc);
4891         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
4892         lp_config_destroy(lc->config);
4893         lc->config = NULL; /* Mark the config as NULL to block further calls */
4894         sip_setup_unregister_all();
4895
4896         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4897         lc->call_logs=ms_list_free(lc->call_logs);
4898
4899         ms_list_for_each(lc->last_recv_msg_ids,ms_free);
4900         lc->last_recv_msg_ids=ms_list_free(lc->last_recv_msg_ids);
4901
4902         linphone_core_free_payload_types(lc);
4903         ortp_exit();
4904         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
4905 #ifdef TUNNEL_ENABLED
4906         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
4907 #endif
4908 }
4909
4910 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
4911         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
4912         // second get the list of available proxies
4913         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4914         for(;elem!=NULL;elem=elem->next){
4915                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4916                 if (linphone_proxy_config_register_enabled(cfg) ) {
4917                         if (!isReachable) {
4918                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
4919                         }else{
4920                                 cfg->commit=TRUE;
4921                         }
4922                 }
4923         }
4924         lc->netup_time=curtime;
4925         lc->network_reachable=isReachable;
4926         if(!isReachable) {
4927                 sal_reset_transports(lc->sal);
4928         }
4929 }
4930
4931 void linphone_core_refresh_registers(LinphoneCore* lc) {
4932         const MSList *elem;
4933         if (!lc->network_reachable) {
4934                 ms_warning("Refresh register operation not available (network unreachable)");
4935                 return;
4936         }
4937         elem=linphone_core_get_proxy_config_list(lc);
4938         for(;elem!=NULL;elem=elem->next){
4939                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4940                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
4941                         linphone_proxy_config_refresh_register(cfg);
4942                 }
4943         }
4944 }
4945
4946 void __linphone_core_invalidate_registers(LinphoneCore* lc){
4947         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4948         for(;elem!=NULL;elem=elem->next){
4949                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4950                 if (linphone_proxy_config_register_enabled(cfg)) {
4951                         linphone_proxy_config_edit(cfg);
4952                         linphone_proxy_config_done(cfg);
4953                 }
4954         }
4955 }
4956
4957 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
4958         //first disable automatic mode
4959         if (lc->auto_net_state_mon) {
4960                 ms_message("Disabling automatic network state monitoring");
4961                 lc->auto_net_state_mon=FALSE;
4962         }
4963         set_network_reachable(lc,isReachable, ms_time(NULL));
4964 }
4965
4966 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
4967         return lc->network_reachable;
4968 }
4969 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
4970         return sal_get_socket(lc->sal);
4971 }
4972 /**
4973  * Destroys a LinphoneCore
4974  *
4975  * @ingroup initializing
4976 **/
4977 void linphone_core_destroy(LinphoneCore *lc){
4978         linphone_core_uninit(lc);
4979         ms_free(lc);
4980 }
4981 /**
4982  * Get the number of Call
4983  *
4984  * @ingroup call_control
4985 **/
4986 int linphone_core_get_calls_nb(const LinphoneCore *lc){
4987         return  ms_list_size(lc->calls);;
4988 }
4989
4990 /**
4991  * Check if we do not have exceed the number of simultaneous call
4992  *
4993  * @ingroup call_control
4994 **/
4995 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
4996 {
4997         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
4998                 return TRUE;
4999         ms_message("Maximum amount of simultaneous calls reached !");
5000         return FALSE;
5001 }
5002
5003
5004 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
5005 {
5006         if(linphone_core_can_we_add_call(lc))
5007         {
5008                 lc->calls = ms_list_append(lc->calls,call);
5009                 return 0;
5010         }
5011         return -1;
5012 }
5013
5014 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
5015 {
5016         MSList *it;
5017         MSList *the_calls = lc->calls;
5018
5019         it=ms_list_find(the_calls,call);
5020         if (it)
5021         {
5022                 the_calls = ms_list_remove_link(the_calls,it);
5023         }
5024         else
5025         {
5026                 ms_warning("could not find the call into the list\n");
5027                 return -1;
5028         }
5029         lc->calls = the_calls;
5030         return 0;
5031 }
5032
5033 /**
5034  * Specifiies a ring back tone to be played to far end during incoming calls.
5035 **/
5036 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
5037         if (lc->sound_conf.ringback_tone){
5038                 ms_free(lc->sound_conf.ringback_tone);
5039                 lc->sound_conf.ringback_tone=NULL;
5040         }
5041         if (file)
5042                 lc->sound_conf.ringback_tone=ms_strdup(file);
5043 }
5044
5045 /**
5046  * Returns the ring back tone played to far end during incoming calls.
5047 **/
5048 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
5049         return lc->sound_conf.ringback_tone;
5050 }
5051
5052 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
5053         const MSList *elem;
5054         for(elem=from;elem!=NULL;elem=elem->next){
5055                 PayloadType *pt=(PayloadType*)elem->data;
5056                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
5057                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
5058                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
5059                         return pt;
5060                 }
5061         }
5062         return NULL;
5063 }
5064
5065
5066 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
5067         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
5068         if (result)  {
5069                 return result;
5070         } else {
5071                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
5072                 if (result) {
5073                         return result;
5074                 }
5075         }
5076         /*not found*/
5077         return NULL;
5078 }
5079
5080 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
5081         switch(gs){
5082                 case LinphoneGlobalOff:
5083                         return "LinphoneGlobalOff";
5084                 break;
5085                 case LinphoneGlobalOn:
5086                         return "LinphoneGlobalOn";
5087                 break;
5088                 case LinphoneGlobalStartup:
5089                         return "LinphoneGlobalStartup";
5090                 break;
5091                 case LinphoneGlobalShutdown:
5092                         return "LinphoneGlobalShutdown";
5093                 break;
5094         }
5095         return NULL;
5096 }
5097
5098 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
5099         return lc->state;
5100 }
5101
5102 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
5103         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
5104         linphone_core_init_default_params(lc, p);
5105         return p;
5106 }
5107
5108 const char *linphone_reason_to_string(LinphoneReason err){
5109         switch(err){
5110                 case LinphoneReasonNone:
5111                         return "No error";
5112                 case LinphoneReasonNoResponse:
5113                         return "No response";
5114                 case LinphoneReasonBadCredentials:
5115                         return "Bad credentials";
5116                 case LinphoneReasonDeclined:
5117                         return "Call declined";
5118                 case LinphoneReasonNotFound:
5119                         return "User not found";
5120                 case LinphoneReasonNotAnswered:
5121                         return "Not answered";
5122                 case LinphoneReasonBusy:
5123                         return "Busy";
5124         }
5125         return "unknown error";
5126 }
5127
5128 const char *linphone_error_to_string(LinphoneReason err){
5129         return linphone_reason_to_string(err);
5130 }
5131 /**
5132  * Enables signaling keep alive
5133  */
5134 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
5135         if (enable > 0) {
5136                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
5137         } else {
5138                 sal_set_keepalive_period(lc->sal,0);
5139         }
5140 }
5141 /**
5142  * Is signaling keep alive enabled
5143  */
5144 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
5145         return sal_get_keepalive_period(lc->sal) > 0;
5146 }
5147
5148 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
5149         get_dtmf_gen(lc); /*make sure ring stream is started*/
5150         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
5151 }
5152
5153 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
5154         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
5155                 ring_stop(lc->ringstream);
5156                 lc->ringstream=NULL;
5157         }
5158 }
5159
5160 int linphone_core_get_max_calls(LinphoneCore *lc) {
5161         return lc->max_calls;
5162 }
5163 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
5164         lc->max_calls=max;
5165 }
5166
5167 typedef struct Hook{
5168         LinphoneCoreIterateHook fun;
5169         void *data;
5170 }Hook;
5171
5172 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
5173         Hook *h=ms_new(Hook,1);
5174         h->fun=hook;
5175         h->data=hook_data;
5176         return h;
5177 }
5178
5179 static void hook_invoke(Hook *h){
5180         h->fun(h->data);
5181 }
5182
5183 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5184         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
5185 }
5186
5187 static void linphone_core_run_hooks(LinphoneCore *lc){
5188         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
5189 }
5190
5191 static void linphone_core_free_hooks(LinphoneCore *lc){
5192         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
5193         ms_list_free(lc->hooks);
5194         lc->hooks=NULL;
5195 }
5196
5197 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5198         MSList *elem;
5199         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
5200                 Hook *h=(Hook*)elem->data;
5201                 if (h->fun==hook && h->data==hook_data){
5202                         ms_list_remove_link(lc->hooks,elem);
5203                         ms_free(h);
5204                         return;
5205                 }
5206         }
5207         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
5208 }
5209
5210 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
5211         if (lc->zrtp_secrets_cache != NULL) {
5212                 ms_free(lc->zrtp_secrets_cache);
5213         }
5214         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
5215 }
5216
5217 const char *linphone_core_get_zrtp_secrets_file(LinphoneCore *lc){
5218         return lc->zrtp_secrets_cache;
5219 }
5220
5221 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
5222         if (uri == NULL) return NULL;
5223         MSList *calls=lc->calls;
5224         while(calls) {
5225                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5226                 calls=calls->next;
5227                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5228                 char *current_uri=linphone_address_as_string_uri_only(address);
5229                 if (strcmp(uri,current_uri)==0) {
5230                         ms_free(current_uri);
5231                         return c;
5232                 } else {
5233                         ms_free(current_uri);
5234                 }
5235         }
5236         return NULL;
5237 }
5238
5239
5240 /**
5241  * Check if a call will need the sound resources.
5242  *
5243  * @ingroup call_control
5244  * @param lc The LinphoneCore
5245 **/
5246 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5247         MSList *calls=lc->calls;
5248         while(calls) {
5249                 LinphoneCall *c=(LinphoneCall*)calls->data;
5250                 calls=calls->next;
5251                 switch (c->state) {
5252                         case LinphoneCallOutgoingInit:
5253                         case LinphoneCallOutgoingProgress:
5254                         case LinphoneCallOutgoingRinging:
5255                         case LinphoneCallOutgoingEarlyMedia:
5256                         case LinphoneCallConnected:
5257                         case LinphoneCallRefered:
5258                         case LinphoneCallIncomingEarlyMedia:
5259                         case LinphoneCallUpdating:
5260                                 return TRUE;
5261                         default:
5262                                 break;
5263                 }
5264         }
5265         return FALSE;
5266 }
5267
5268 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5269         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5270 }
5271
5272 /**
5273  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5274 **/
5275 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5276         switch(menc){
5277                 case LinphoneMediaEncryptionSRTP:
5278                         return ortp_srtp_supported();
5279                 case LinphoneMediaEncryptionZRTP:
5280                         return ortp_zrtp_available();
5281                 case LinphoneMediaEncryptionNone:
5282                         return TRUE;
5283         }
5284         return FALSE;
5285 }
5286
5287 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5288         const char *type="none";
5289         int ret=0;
5290         if (menc == LinphoneMediaEncryptionSRTP){
5291                 if (!ortp_srtp_supported()){
5292                         ms_warning("SRTP not supported by library.");
5293                         type="none";
5294                         ret=-1;
5295                 }else type="srtp";
5296         }else if (menc == LinphoneMediaEncryptionZRTP){
5297                 if (!ortp_zrtp_available()){
5298                         ms_warning("ZRTP not supported by library.");
5299                         type="none";
5300                         ret=-1;
5301                 }else type="zrtp";
5302         }
5303         lp_config_set_string(lc->config,"sip","media_encryption",type);
5304         return ret;
5305 }
5306
5307 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5308         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5309
5310         if (menc == NULL)
5311                 return LinphoneMediaEncryptionNone;
5312         else if (strcmp(menc, "srtp")==0)
5313                 return LinphoneMediaEncryptionSRTP;
5314         else if (strcmp(menc, "zrtp")==0)
5315                 return LinphoneMediaEncryptionZRTP;
5316         else
5317                 return LinphoneMediaEncryptionNone;
5318 }
5319
5320 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5321         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5322 }
5323
5324 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5325         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5326 }
5327
5328 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5329         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5330         params->media_encryption=linphone_core_get_media_encryption(lc);
5331         params->in_conference=FALSE;
5332 }
5333
5334
5335
5336 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5337         if (lc->device_id) ms_free(lc->device_id);
5338         lc->device_id=ms_strdup(device_id);
5339 }
5340 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5341         return lc->device_id;
5342 }
5343
5344 /**
5345  * Set the DSCP field for SIP signaling channel.
5346  *
5347  * @ingroup network_parameters
5348  * * The DSCP defines the quality of service in IP packets.
5349  *
5350 **/
5351 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5352         sal_set_dscp(lc->sal,dscp);
5353         if (linphone_core_ready(lc)){
5354                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5355                 apply_transports(lc);
5356         }
5357 }
5358
5359 /**
5360  * Get the DSCP field for SIP signaling channel.
5361  *
5362  * @ingroup network_parameters
5363  * * The DSCP defines the quality of service in IP packets.
5364  *
5365 **/
5366 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5367         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5368 }
5369
5370 /**
5371  * Set the DSCP field for outgoing audio streams.
5372  *
5373  * @ingroup network_parameters
5374  * The DSCP defines the quality of service in IP packets.
5375  *
5376 **/
5377 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5378         if (linphone_core_ready(lc))
5379                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5380 }
5381
5382 /**
5383  * Get the DSCP field for outgoing audio streams.
5384  *
5385  * @ingroup network_parameters
5386  * The DSCP defines the quality of service in IP packets.
5387  *
5388 **/
5389 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5390         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5391 }
5392
5393 /**
5394  * Set the DSCP field for outgoing video streams.
5395  *
5396  * @ingroup network_parameters
5397  * The DSCP defines the quality of service in IP packets.
5398  *
5399 **/
5400 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5401         if (linphone_core_ready(lc))
5402                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5403
5404 }
5405
5406 /**
5407  * Get the DSCP field for outgoing video streams.
5408  *
5409  * @ingroup network_parameters
5410  * The DSCP defines the quality of service in IP packets.
5411  *
5412 **/
5413 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5414         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5415 }