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

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